CN108722520A - The laboratory cabinet of drawer and the application drawer - Google Patents

Abstract

A drawer and a laboratory cabinet using the drawer. The drawer includes an inner drawer capable of holding objects. It is characterized in that the outer side of the inner drawer is also provided with a metal outer plate and a decorative panel. The main body of the outer plate and the bent edge extending outward from the upper part of the outer plate main body, the main body of the outer plate and the bent edge are integrally formed, and a groove-shaped grip groove is formed on the upper part of the metal outer plate through the bent edge , the main body of the outer panel covers the outer side of the inner drawer and is connected to the inner drawer, the decorative panel is connected to the outer side of the main body of the outer panel and is located below the bending edge, and the outer surface of the decorative panel and the outer surface of the bending edge have different color exterior decorations Floor. In this way, basic structural conditions can be provided for flexibly adjusting the shape, color and even the material of the metal outer plate and decorative panel on the outer side of the inner drawer to meet the user's ever-increasing aesthetic needs.

Description

Drawers and laboratory cabinets using said drawers

technical field

The invention relates to a drawer capable of accommodating objects and a laboratory cabinet using the drawer, wherein the drawer has a novel structure.

Background technique

The cabinets used in the laboratory environment generally need to have functions such as fire prevention, acid and alkali corrosion resistance, and practicality. Among them, the performance of fire prevention and acid and alkali corrosion resistance is mainly related to the materials used in the cabinets. Therefore, in the laboratory environment, a large number of non-metallic corrosion-resistant board materials such as relatively corrosion-resistant and fire-resistant physical and chemical boards, ceramic boards, etc. are generally used as laboratory materials. The main board structure material of the counter, but physical and chemical boards or ceramic boards are generally simple in the shape of a board, and it is very difficult to form special-shaped components.

In laboratory counter products, it is inevitable to use drawers for storage, and the drawers generally include an inner drawer and a handle capable of pulling the inner drawer. Chinese utility model patent 201220068831.9 discloses a bottom-drawing cabinet. The bottom-drawing cabinet is a sheet metal cabinet, including a drawer and a drawer panel 2 arranged outside the drawer. The drawer panel 2 is formed by bending a sheet metal. The cross-sectional shape of the drawer panel 2 is S-shaped, so that a drawer handle 3 is formed on its upper part, and an outwardly protruding protrusion is formed on its lower part. The S-shaped cross-sectional shape makes the drawer panel 2 have a strong three-dimensional sense.

In the current laboratory counter design, the design concept has begun to gradually change. In addition to meeting the functional requirements of the laboratory products themselves, people have also begun to pay attention to the decorative functions of the product design, which is not only beautiful but also can improve the grade of the product. Better international competitiveness. Therefore, satisfying people's growing demand for a better life is actually similar to Made in China 2025. If the structure of the bottom map cabinet disclosed in the ZL201220068831.9 Chinese patent is used in a laboratory environment, it can be found that it does not have the function of corrosion resistance and the decoration is not beautiful enough.

Contents of the invention

Aiming at the deficiencies of the prior art, the present invention proposes a drawer, which includes an inner drawer capable of accommodating objects, and is characterized in that a metal outer plate and a decorative panel are arranged on the outer side of the inner drawer, wherein the metal outer plate It includes a plate-shaped outer plate main body and a bending edge extending outward from the upper part of the outer plate main body. The outer plate main body and the bending edge are integrally formed. A groove-shaped holding groove is formed on the upper part of the metal outer plate, the outer plate main body covers the outer side of the inner drawer and is connected to the inner drawer, the decorative panel is connected to the outer side of the outer plate main body and Located below the bending edge, the outer surface of the decorative panel and the outer surface of the bending edge have outer decoration layers of different colors.

Wherein, a metal outer plate and a decorative panel are also arranged on the outer side of the inner drawer. The above features define the layout position and orientation of the metal exterior panels and decorative panels. The metal outer plate and the decorative panel are arranged on the outer side of the inner drawer to form an outer cover capable of covering the inner drawer. The above features also define that the metal outer panel and the decorative panel are two different components although they may be detachably or irrevocably connected together, so they can be made of different materials or made of different materials before assembly. Different surface treatments can create different but coordinated appearance textures, shapes or color effects.

Wherein, the metal outer panel is a sheet metal piece, including the outer panel main body and the bent edge integrally formed, and can be an intermediate transition piece between the inner drawer and the decorative panel.

Wherein, a groove-shaped holding groove is formed on the upper part of the metal outer plate through the bending edge. In this way, the human hand can control the metal outer panel through the grip groove, so that the drawer can be pulled conveniently.

Wherein, the decorative panel is connected to the outer side of the outer panel main body and is located below the bent edge. The above features define the layout position of the decorative panel, so that the decorative panel can at least cover part of the main body of the outer panel.

Wherein, the decorative panel or the outer decorative layer of the bent edge can be realized by technical methods such as laying, spraying, and metal oxidation coloring.

According to the above-mentioned technical scheme, compared with the prior art, the beneficial technical effect that the present invention has is:

First of all, the decorative panel can protect the main body of the outer panel on the outside of the main body of the outer panel, so that corrosive or polluting objects such as gas or accidentally poured liquid in the laboratory environment will not The outer panel main body, which is made of metal, is easily accessible.

Secondly, since the decorative panel and the main body of the outer panel are two different parts, the decorative panel and the metal outer panel can be processed into components of different shapes and colors before assembly. Finally, use the synergy between them to match drawers with different appearance, texture, color and other effects. For this reason, this structure can flexibly adjust the shape, color and even the material itself of the metal outer plate and decorative panel outside the inner drawer to provide basic structural conditions to meet the user's ever-increasing aesthetic needs.

In the above solution, the notch of the holding groove may be opened upward, and the decorative panel directly leans against the lower edge of the bending edge; however, a further technical solution may also be that the holding The notch of the holding groove is arranged downwards, and a gap is reserved between the upper edge of the decorative panel and the lower edge of the bending edge forming the holding groove to allow fingers to be inserted into the holding groove. Avoid finger gaps. In this way, dust can be avoided in the holding groove, and fingers can be conveniently inserted into the holding groove to control the drawer by means of the avoiding finger gap. At this time, the avoiding finger can also be used to The gap forms a decorative groove on the outer surface of the entire drawer, so that the outer surface of the drawer will not be so rigid but rather flexible, and the bending edge will form a groove above the avoiding finger gap that is different from the decorative groove. Decorative narrow ribbons of different colors for the panels.

A further technical solution may also be that end plugs are respectively provided at the left and right ends of the holding groove. In this way, the left and right ends of the holding groove are blocked by means of the plugs, which can prevent the sharp left and right ends of the holding groove from scratching and hurting the user, and make the outer surface of the entire drawer Appear plump.

A further technical solution may also be that the outer sides of the left and right sides of the bending edge have chamfers, and the length of the hypotenuse of the chamfering is 1.5 times the height of the outward protrusion of the bending edge relative to the outer panel main body above. In this way, relatively obvious chamfers are formed on the outer sides of the left and right sides of the bending edge, which enhances the three-dimensional and dynamic sense of the bending edge, and prevents the bending edge from being too rigid. In addition, modifying the shape of the left and right sides of the bending edge through the chamfering can not only produce the above-mentioned good appearance effect, but also form an inwardly retracted avoidance area through the chamfering, preventing users from Limbs easily collide with the left and right sides of the bent edge and are scratched. Moreover, the chamfering can also strengthen the structural strength of the bent edge, which is conducive to maintaining the original appearance shape and not easily deformed during long-term use.

A further technical solution may also be that the outer sides of the left and right sides of the decorative panel have chamfers, and the angles of the chamfers on the bent sides are substantially the same as the angles of the chamfers on the decorative panel. In this way, relatively obvious chamfers are also formed on the outer sides of the left and right sides of the decorative panel to enhance the three-dimensional and dynamic sense of the decorative panel. An inwardly indented avoidance area can also be formed by the chamfering, so as to prevent the user's limbs from easily colliding with the left and right sides of the decorative panel and being scratched. Moreover, the chamfering can also strengthen the structural strength of the decorative panel, which is conducive to maintaining the original appearance shape and not easily deformed during long-term use. In addition, the appearance structural feature that the chamfering angle on the bending edge is substantially the same as that on the decorative panel makes the bending edge and the decorative panel have a more coordinated appearance style.

A further technical solution may also be that the outer surface of the decorative panel is substantially flat with the outer surface of the bent edge. In this way, viewed from the side, the decorative panel and the bent edge have substantially the same longitudinal width (thickness), thereby creating an appearance effect that the decorative panel and the metal outer panel form a thick board with a certain thickness , the decorative panel is integrated with the metal outer panel, making the outer surface of the entire drawer look very simple and thick. In addition, the outer surface of the bent edge will not be easily scratched due to protruding from the outer surface of the decorative panel and hurt the user.

The manufacturing material of the decorative panel can be separated from the restriction of the metal outer panel and has a variety of options, for example, a metal sheet can be used. For this purpose, a further technical solution can also be that the decorative panel is a sheet metal part with an outer decorative panel. The decorative panel is welded to the main body of the outer panel through the inner flange, or the decorative panel is detachably connected through the inner flange and screws on the outer panel body. In this way, the decorative panel is a shell-shaped sheet metal part with a cavity and has a certain thickness. When the decorative panel is connected to the outer side of the outer panel main body, the decorative panel is connected with a metal decorative plate with a certain thickness on the outer side of the outer panel main body, so that the outer surface of the entire drawer is more plump and smooth. thick. The use of the shell-like structure of the decorative panel can greatly reduce the amount of consumable materials and reduce the manufacturing cost.

The decorative panel made of metal sheet is relatively easy to be corroded by acid and alkali, so generally an anti-corrosion coating is applied on the decorative panel. Alternatively, the decorative panel is made of a non-metal corrosion-resistant plate. A further technical solution for this purpose may also be that the decorative panel is a non-metallic corrosion-resistant plate and is clamped, glued or connected to the main body of the outer panel by screws. Wherein, the non-metallic corrosion-resistant plate refers to a non-metallic industrial plate that has relatively high corrosion resistance and fire resistance and is suitable for use in laboratories, such as physical and chemical plates and ceramic plates.

In order to make the appearance of the decorative panel and the outer panel main body more coordinated, a further technical solution may be that the left and right sides of the decorative panel and the left and right sides of the outer panel main body flush. Alternatively, the lower side of the decorative panel is flush with the lower side of the outer panel main body.

A further technical solution may also be that the height of the main body of the outer plate is greater than the height of the inner drawer. In this way, while reducing the amount of consumables of the inner drawer, the outer plate main body can be used to hide the space above the inner drawer, so that the upper space can also be used as a storage space for storing objects.

In order to improve the corrosion resistance of the drawer, a further technical solution may be that the inner drawer has front, rear, left and right side wall bodies and bottom plate bodies made of non-metallic corrosion-resistant plates, and the front and rear , the left and right side walls and the bottom plate are connected by bonding, the outer side plate main body is located outside the front side wall of the inner drawer, the outer side plate main body and the front side wall of the inner drawer Connected, glued or connected by screws. In this way, compared with drawers made of all metal materials, the inner drawer made of non-metallic corrosion-resistant plates can greatly improve the corrosion resistance, and the experimental equipment in the inner drawer will not be polluted due to the corrosion of the inner drawer.

The present invention also proposes a laboratory cabinet using the drawer, the laboratory cabinet includes a table top and a cabinet facade part below the table top, the drawer is twitchably installed on the cabinet vertical face part.

Due to the above features and advantages, the present invention can be applied to drawers and laboratory cabinets using said drawers.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the laboratory work counter 100 of application technical scheme of the present invention;

Fig. 2 is a three-dimensional structural schematic diagram of a laboratory work counter 100 applying the technical solution of the present invention, in which the work table panel 4 is omitted;

Fig. 3 is a schematic cross-sectional structure diagram of A-A direction in Fig. 1;

Fig. 4 is a schematic diagram of the enlarged structure of part B in Fig. 3;

Fig. 5 is a schematic diagram of the enlarged structure of part C in Fig. 3;

Fig. 6 is a top structural schematic diagram of the upper main frame 1;

Fig. 7 is a schematic diagram of the enlarged structure of part D in Fig. 6;

Fig. 8 is a schematic diagram of the enlarged structure of part E in Fig. 6;

Fig. 8A is a schematic diagram of the enlarged structure of part F in Fig. 6;

FIG. 9 is a schematic diagram of an exploded structure of the counter intermediate unit 200;

Fig. 10 is a structural schematic diagram of the front view direction of L-shaped plate wrapping;

Fig. 10A is a structural schematic diagram of the front view direction of T-shaped plate wrapping;

Fig. 11 is a schematic diagram of an exploded structure of the drawer 5;

Fig. 12 is a schematic diagram of the three-dimensional structure of the drawer 5;

Fig. 13 is a schematic top view of the drawer 5;

Fig. 14 is a schematic cross-sectional structure diagram of the G-G direction in Fig. 12;

FIG. 15 is a schematic perspective view of the lower main frame 300;

Fig. 16 is a schematic cross-sectional structure diagram of the front lower transverse beam 3;

FIG. 17 is a schematic top view of the lower main frame 300 .

Detailed ways

As shown in the figure, a laboratory work counter 100 of a new structure includes a worktable panel 4, and also includes an upper main frame 1 positioned below the worktable panel 4, a lower main frame 300 and a main frame arranged on the upper main frame The support side plate between frame 1 and the lower main frame 300, the support side plate supports the upper main frame 1, and the upper main frame 1 supports the workbench panel 4; the upper main frame 1 is The frame shape includes upper longitudinal beams and upper transverse beams that are vertically and horizontally connected and are profile-shaped respectively. The side panels include longitudinal support side panels and transverse support side panels, the longitudinal support side panels stand above the lower longitudinal beams and under the upper longitudinal beams, the transverse support side panels stand on the The lower transverse beam is above and under the upper transverse beam, and at least one of the longitudinal support side plates and one of the transverse support side plates are arranged in an L shape and connected together; the longitudinal support side The plate or the lateral support side plate itself includes a core plate processed from a non-metallic corrosion-resistant plate and a metal plate wrapping around the core plate. The plate wrapping is in the shape of a profile and is located at the top of the support side plate Or between the plate hemming at the lower end and the upper main frame 1 or the lower main frame 300 are also connected by a connecting piece 117 . Wherein said workbench panel 4 is a non-metal corrosion-resistant plate.

Firstly, the structure of the upper main frame 1 will be described in detail in conjunction with the accompanying drawings.

As shown in Fig. 2 and Fig. 6, the upper main frame 1 is in the shape of a frame as a whole and includes upper longitudinal beams and upper transverse beams connected vertically and horizontally and respectively in the shape of profiles. The left upper longitudinal beam 13 and the right upper longitudinal beam 16 at the left outer side and right outer side of the main frame 1, the upper transverse beam at least includes the front upper transverse beam 11 and Rear upper transverse beam 12. The left upper longitudinal beam 13, the right upper longitudinal beam 16 and the front upper transverse beam 11 are inclined beams. Of course, in other embodiments, only the front upper transverse beam 11 may be an inclined beam, or only the left upper longitudinal beam 13 and the right upper longitudinal beam 16 may be inclined beams.

As shown in FIG. 4 , the cross-sectional structure of the inclined beam will be described below taking the front upper transverse beam 11 as an example. Viewed from the cross section, the inclined beam includes an upper horizontal frame wall 111 and a lower horizontal frame wall 112 that are separated from each other and extend laterally, and are located between the upper horizontal frame wall 111 and the lower horizontal frame wall 112 and The outer support frame wall 115 and the inner support frame wall 116 are separated inside and outside. The upper horizontal frame wall 111 and the lower horizontal frame wall 112 are substantially parallel to each other, and the horizontal width W1 of the upper horizontal frame wall 111 is greater than the horizontal width W2 of the lower horizontal frame wall 112 . The outer support frame wall 115 includes an inclined wall body 114, and the inclined wall body 114 is not only arranged in an inclined shape but also arc-shaped. Of course, in other embodiments, the inclined wall body 114 may also be wave-shaped. In this way, the inclined wall body 114 becomes an arc-shaped inclined decorative surface belt extending along the axial direction of the inclined beam, and the inclined decorative surface belt becomes a three-dimensional decorative element of the inclined beam. The upper main frame 1 has a blunt outline of the hanging board in the past, so that the upper main frame 1 has a flexible concave-convex three-dimensional shape, and the upper main frame 1 becomes the lower decorative frame of the workbench panel 4 . Moreover, the inclined wall body 114 arranged obliquely forms an inwardly indented avoidance area on the outer support frame wall 115, so as to avoid the user's limbs from easily colliding with the outer support frame wall 115 and being scratched. . Secondly, the arc-shaped inclined wall 114 can also serve as a force application part for lifting the upper main frame 1 manually, so as to facilitate the moving of the upper main frame 1 .

The outer supporting frame wall 115 also includes a vertically arranged transition wall 113 , and the transition wall 113 is connected between the upper horizontal frame wall 111 and the inclined wall body 114 . In the vertical direction, the extension height of the inclined wall body 114 is greater than the extension height of the transition wall 113 . In this way, the outer support frame wall 115 includes two parts, the transition wall 113 and the inclined wall body 114 , and the appearance is richer and fuller. Moreover, the vertically arranged transition wall 113 can increase the thickness of the outer support frame wall 115 and produce a thick visual effect, and can also be arranged on different facades and different widths from the inclined wall body 114 The decorative strip further improves the appearance effect of the inclined beam. Secondly, the combination of the transition wall 113 and the inclined wall 114 can strengthen the supporting strength of the inclined beam. In other embodiments, the transition wall 113 may also be connected between the lower horizontal frame wall 112 and the inclined wall 114 . Alternatively, it is also feasible to directly omit the provision of the transition wall 113 and make the entire wall body of the outer support frame wall 115 an inclined wall body 114 .

The rear upper transverse beam 12 can also be an inclined plane beam. However, considering that in general application scenarios, the rear upper transverse beam 12 is hidden and not easy to be observed, in order to save manufacturing costs, the cross-sectional shape of the rear upper transverse beam 12 is different from that of the front upper transverse beam 11 . Therefore, the rear upper transverse beam 12 can be made of a profile with a cross-sectional shape different from that of the front upper transverse beam 11, such as a square or channel profile of a standard specification, so that the structural strength of the upper main frame 1 can be ensured. The manufacturing cost of the upper main frame 1 is greatly reduced.

The upper transverse beam and the upper longitudinal beam can be connected together by welding, but this method is not easy to disassemble. In view of this, the present invention proposes the following connection method. As shown in Fig. 6 and Fig. 7, the front upper transverse beam 11 is located between the left upper longitudinal beam 13 and the right upper longitudinal beam 16, and the corner joint between them passes through the first plastic corner transition joint (17, 17a) link up. Wherein, the corner joints refer to the L-shaped corners respectively formed between the front upper transverse beam 11, the left upper longitudinal beam 13, and the right upper longitudinal beam 16, and one L-shaped corner is arranged with one of the first Plastic corner adapter (17 or 17a). As shown in FIG. 7 , the first plastic corner transition joint 17 is a substantially L-shaped connector with a longitudinal connecting arm 171 and a transverse connecting arm 172 . A front upper transverse beam insertion cavity 110 is provided on the front upper transverse beam 11 , and a left upper longitudinal beam insertion cavity 130 is provided on the left upper longitudinal beam 13 . The longitudinal connecting arm 171 of the first plastic corner transition joint 17 is sleeved into the insertion cavity 130 of the left upper longitudinal beam and fastened together by screws 173 . The transverse connecting arm 172 of the first plastic corner transition joint 17 is sleeved into the insertion cavity 110 of the front upper transverse beam and fastened together by screws 174 . The connecting structure between the left upper longitudinal beam 16, the front upper transverse beam 11 and the first plastic corner transition joint 17a is related to the above-mentioned left upper longitudinal beam 13, the front upper transverse beam 11 and the first plastic joint. The connection structures between the corner transition joints 17 are similar and will not be repeated here.

As shown in Figures 6 and 8, the rear upper transverse beam 12 is located between the left upper longitudinal beam 13 and the right upper longitudinal beam 16, and the upper left longitudinal beam 13 is connected with a The first connecting plug 18 at the left end of the first connecting plug 18 is connected to the left upper longitudinal beam 13 through screws 182 . The rear upper transverse beam 12 is provided with a first accommodating cavity 120 capable of accommodating the first connecting plug 18 , and the left end of the rear upper transverse beam 12 is socketed on the first accommodating cavity 120 . One is connected to the plug 18 and is tightly connected by screws 181 between them. Similarly, a first connecting plug 18a corresponding to the right end of the rear upper transverse beam 12 is also connected to the right upper longitudinal beam 16, and the structure of the first connecting plug 18a is similar to that of the first connecting plug. The head 18 is similar, and its way of positioning the right end of the rear upper cross beam 12 is similar to that of the first connecting plug 18 for positioning the left end of the rear upper cross beam 12, which can be understood with reference to FIG. This will not be repeated here.

As shown in FIG. 6 and FIG. 8A, the upper longitudinal beam also includes a middle upper longitudinal beam arranged between the left upper longitudinal beam 13 and the right upper longitudinal beam 16 and parallel to the left upper longitudinal beam 13 or the right upper longitudinal beam 16. Longitudinal beams (14, 15), the middle upper longitudinal beams (14, 15) are located between the front upper transverse beam 11 and the rear upper transverse beam 12. Second connecting plugs ( 19 , 19 a ) corresponding to the front and rear ends of the middle upper longitudinal beam 14 are respectively connected to the front upper transverse beam 11 and the rear upper transverse beam 12 . Wherein, the second connection plug 19 is connected to the front upper transverse beam 11 through a screw 192, and the second connection plug 19a is connected to the rear upper cross beam 11 through a screw (can be understood with reference to FIG. 8A ). on the transverse beam 12. The middle upper longitudinal beam 14 is provided with a second accommodating cavity 140 capable of accommodating the second connecting plug (19, 19a), and the two ends of the middle upper longitudinal beam 14 pass through the second accommodating cavity 140 respectively. It is socketed on the second connecting plug (19, 19a) arranged at the front and rear, and the left end of the middle upper longitudinal beam 14 is tightly connected to the second connecting plug 19 by means of screws 191 or bonding. Similarly, the right end of the middle upper longitudinal beam 14 is firmly connected with the second connecting plug 19a by means of screws (for understanding as shown in FIG. 8A ) or bonding. The connection mode between the middle upper longitudinal beam 15 and the front upper transverse beam 11 and the rear upper transverse beam 12 is the same as that between the middle upper longitudinal beam 14 and the front upper transverse beam 11 and the rear upper transverse beam 12 The connection method is similar and will not be repeated here.

The middle upper longitudinal beams (14, 15) can also be inclined beams. Considering that in general application scenarios, the middle upper longitudinal beam (14, 15) is hidden and not easy to be observed, in order to save manufacturing costs, the middle upper longitudinal beam (14, 15) and the left upper longitudinal beam 13 or the cross-sectional shape of the upper right longitudinal beam 16 is different. Therefore, the middle upper longitudinal beam (14, 15) can be made of profiles with different cross-sectional shapes from the left upper longitudinal beam 13 and the right upper longitudinal beam 16, for example, the same shape as the rear upper transverse beam 12, using standard Specifications of square or channel profiles can greatly reduce the manufacturing cost of the upper main frame 1 while ensuring the structural strength of the upper main frame 1 .

In summary, the front upper transverse beam 11, the rear upper transverse beam 12, the left upper longitudinal beam 13, the right upper longitudinal beam 16 and the middle upper longitudinal beam (14, 15) can be split but combined Packed and transported in one packaging unit, and then connected at the installation site through plastic corner transition joints (17, 17a) or connecting plugs (18, 18a, 19, 19a), without complicated connection methods such as welding In this way, it is not only difficult to make mistakes at the installation site, but also can be assembled very conveniently even for non-professionals.

A soft rubber pad (not shown in the figure) is also provided on the upper side of the upper main frame 1, and the worktable panel 4 rests on the soft rubber pad. In this way, frictional resistance can be formed between the upper side of the upper main frame 1 and the worktable panel 4 by means of the soft rubber pad, preventing the worktable panel 4 from easily sliding away from the upper main frame 1 . In addition, in the process of carrying out the experiment, the soft rubber pad can also buffer the up and down vibration force borne by the workbench panel 4, thereby reducing the obvious vibration caused by the collision between the workbench panel 4 and the upper main frame 1. noise.

Then, the structure of the lower main frame 300 will be described in detail in conjunction with the accompanying drawings.

As shown in FIG. 15 , the lower main frame 300 is in the shape of a frame as a whole, including lower longitudinal beams and lower transverse beams connected vertically and horizontally and respectively in the shape of profiles. The lower transverse beams at least include front lower transverse beams (3, 3a) and rear lower transverse beams 33 located on the front outer side and rear outer side of the lower main frame 300; The left lower longitudinal beam 36 and the right lower longitudinal beam 31 at the left outer side and the right outer side of the lower main frame 300 and two middle lower longitudinal beams arranged between the left lower longitudinal beam 36 and the right lower longitudinal beam 31 and arranged transversely apart (32, 32a), the two middle lower longitudinal beams (32, 32a) are respectively connected between the front lower transverse beams (3, 3a) and the rear lower transverse beams 33. The position between the two middle lower longitudinal beams (32, 32a) is not arranged with the front lower transverse beam (3, 3a) and becomes a transverse vacant position 30, so that the two middle lower longitudinal beams (32, 32a ) and the rear lower transverse beam 33 between them enclose a concave vacant area 390 arranged corresponding to the transverse vacant position 30 . In this way, the concave vacant area 390 is located in the frame inner space of the lower main frame 300 . The external objects can be accommodated in the concave vacant area 390 after passing through the transverse vacant position 30 . The concave vacant area 390 becomes a part of the storage space. The lower main frame 300 has a storage function.

Wherein, the lower longitudinal beam further includes two intermediate lower longitudinal beams (32, 32a) arranged between the left lower longitudinal beam 36 and the right lower longitudinal beam 31 and arranged transversely apart, the two intermediate lower longitudinal beams (32, 32a) are respectively connected between the front lower cross beam (3, 3a) and the rear lower cross beam 33. The above features firstly define the layout position of the two middle lower longitudinal beams (32, 32a), and the two middle lower longitudinal beams (32, 32a) are located in the frame defined by the lower longitudinal beams and lower transverse beams In the space, the two middle lower longitudinal beams (32, 32a) have a distance in the transverse direction. In addition, the above features also define that the two middle lower longitudinal beams ( 32 , 32 a ) are respectively connected to the front lower transverse beam ( 3 , 3 a ) and the rear lower transverse beam 33 . In this way, the two middle lower longitudinal beams (32, 32a) are vertically and horizontally connected with the front lower transverse beams (3, 3a) and the rear lower transverse beams 33 to form two left and right sides on the lower main frame 300. The small frame body separated to the right, the small frame body itself is a stabilizing mechanism capable of overcoming external longitudinal or lateral thrust, and thus can at least double the twisting and deformation capability of the lower main frame 300 against longitudinal or lateral thrust, It makes up for the adverse effect of the setting of the transverse vacant position 30 on the deformation resistance of the lower main frame 300 . In addition, the middle lower longitudinal beams (32, 32a) can also form a support at the middle position of the lower main frame 300 to expand the support density of the lower main frame 300, so as to support the lower main frame 300 Support is provided by an object above and centrally located such as the bottom core panel 29 of the laboratory counter 100 discussed briefly below.

The beam frame of the general frame body is a boxy square profile, which is very rigid. In order to break through this traditional style, the present invention further improves the lower main frame 300, the left lower longitudinal beam 36, the lower right longitudinal beam Beam 31 and said front lower transverse beam (3, 3a) are trapezoidal beams. As shown in FIG. 16 , the cross-sectional structure of the trapezoidal beam is introduced by taking the front lower transverse beam 3 as an example. Viewed from the cross-section, the trapezoidal beam includes an upper horizontal frame wall 301 and a lower horizontal frame wall 302 that are separated up and down and extend laterally, and are located between the upper horizontal frame wall 301 and the lower horizontal frame wall 302 and The left supporting frame wall 303 and the right supporting frame wall 304 separated left and right, the upper horizontal frame wall 301 and the lower horizontal frame wall 302 are arranged approximately parallel to each other and the horizontal width W3 of the upper horizontal frame wall 301 is larger than the lower horizontal frame wall 301 The horizontal width W4 of the frame wall 302 . In this way, when the lower horizontal frame wall 302 rests on the positioning base, the positioning reference datum provided by the positioning base obtained by the lower horizontal frame wall 302 is different from the positioning reference datum obtained by the upper horizontal frame wall 301 Basically the same. Thus, as long as the positioning base can provide a horizontal reference positioning datum for the lower horizontal frame wall 302 , the upper horizontal frame wall 301 can also be arranged horizontally. Moreover, the upper horizontal frame wall 301 with a relatively large horizontal width can provide a relatively large-area support for objects supported thereon, improving the support stability. To sum up, the left lower longitudinal beam 36, the right lower longitudinal beam 31 and the front lower transverse beam (3, 3a) are trapezoidal beams, and the trapezoidal beams have an appearance feature of being large at the top and thin at the bottom, so that the lower main frame 300 maintains a good support strength and at the same time looks very delicate and agile overall. In order to further optimize the appearance of the lower main frame 300 , the two middle lower longitudinal beams ( 32 , 32 a ) have the same cross-sectional shape as the left lower longitudinal beam 36 and the right lower longitudinal beam 31 and are trapezoidal beams.

The rear lower transverse beam 33 can also be the trapezoidal beam. Considering that in general application scenarios, the rear lower transverse beam 33 is hidden and not easy to observe, in order to save manufacturing costs, the rear lower transverse beam 33 is different from the cross-sectional shape of the front lower transverse beam (3, 3a). The rear lower transverse beam 33 can be made of a cross-sectional shape different from that of the front lower transverse beam (3, 3a), such as square steel and channel steel of standard specifications, so that the lower main frame 300 can be guaranteed In the case of structural strength, the manufacturing cost of the lower main frame 300 is greatly reduced.

In order to form a rear void area 391 on the rear side of the lower main frame 300, the rear lower transverse beam 33 is located between the left lower longitudinal beam 36 and the right lower longitudinal beam 31 and they are arranged in an E shape. In this way, the rear ends of the left lower longitudinal beam 36 and the right lower longitudinal beam 31 extend backward beyond the rear lower transverse beam 33 . The rear lower transverse beam 33 and the rear extension ends of the left lower longitudinal beam 36 and the right lower longitudinal beam 31 enclose the rear vacant area 391 . In this way, the lower left longitudinal beam 36 and the lower right longitudinal beam 31 can support the longitudinal support side panels extending backward so that a rear storage space capable of storing objects is formed above the rear void area 391, and in the rear storage space Power lines that provide the power source for the experiment can be placed.

The lower transverse beam and the lower longitudinal beam can be connected together by welding, but this method is not easy to disassemble. In view of this, the present invention proposes the following connection method. As shown in Fig. 15 and Fig. 17, the joints between the front lower transverse beam 3 and the left lower longitudinal beam 36 and between the front lower transverse beam 3a and the right lower longitudinal beam 31 are respectively passed through the second plastic Corner transition joints (34, 34a) are connected. The joints between the front lower transverse beam 3 and the middle lower longitudinal beam 32, and between the front lower transverse beam 3a and the middle lower longitudinal beam 32a respectively pass through third plastic corner transition joints (35 , 35a) link up. The structure of the second plastic corner transition joint (34, 34a), the third plastic corner transition joint (35, 35a) is similar to that of the first plastic corner transition joint (17, 17a), and the second plastic corner transition joint ( 34, 34a), the connection mode of the third plastic corner transition joint (35, 35a) and the corresponding longitudinal and transverse beams is also similar to the connection mode of the first plastic corner transition joint (17, 17a) and the corresponding longitudinal and transverse beams, specifically It can be understood with reference to FIG. 7 and related discussions, and details are not repeated here. Of course, in other embodiments, the front ends of the middle lower longitudinal beams (32, 32a) and the front lower transverse beams (3, 3a) can also be connected by using fourth connecting plugs, see below for details The connection structures between the rear ends of the middle lower longitudinal beams ( 32 , 32 a ) and the rear lower transverse beams 33 will be discussed.

The third connecting plugs (38, 38a) corresponding to the left and right ends of the rear lower transverse beam 33 are respectively connected to the left lower longitudinal beam 36 and the right lower longitudinal beam 31, and the rear lower transverse beam 33 is provided with There is a third accommodating chamber 330 capable of accommodating the third connecting plug (38, 38a). The third connection plugs (38, 38a) and they are tightly connected. Wherein, the two ends of the rear lower transverse beam 33 can be firmly connected with the correspondingly arranged third connecting plugs ( 38 , 38 a ) by means of bonding, screw connection and the like. In this way, the two ends of the rear lower transverse beam 33 are stably positioned on the left lower longitudinal beam 36 and the right lower longitudinal beam 31 through the third connecting plugs ( 38 , 38 a ), and the installation is very convenient. Moreover, after the installation is completed, the third connecting plugs ( 38 , 38 a ) are stored in the third receiving cavity 330 and basically will not be exposed to affect the appearance of the lower main frame 300 . As for the connection between the third connecting plug ( 38 , 38 a ) and the left lower longitudinal beam 36 or the right lower longitudinal beam 31 , various connection methods such as bonding and welding can be adopted. The more convenient and firm connection is to use screws, so a further technical solution may be that the third connection plug (38, 38a) is connected to the left lower longitudinal beam 36 or right lower longitudinal beam by screws 31 on. The structure of the third connection plug (38, 38a) is similar to the structure of the first connection plug 18, and the connection method between the third connection plug (38, 38a) and the corresponding longitudinal and transverse beams is also the same as that of the first connection plug 18. The first connection plug 18 is connected in a similar manner to the corresponding longitudinal and transverse beams, which can be understood with reference to FIG. 8 and related discussions, and will not be repeated here.

The fourth connecting plugs (39, 39a) respectively corresponding to the rear ends of the middle lower longitudinal beams (32, 32a) are connected to the rear lower transverse beam 33, and the fourth connecting plugs (39, 39a) They are respectively connected to the rear lower transverse beam 33 by screws. The middle lower longitudinal beam (32, 32a) is provided with a fourth accommodation cavity (320, 320a) capable of accommodating the fourth connecting plug (39, 39a), and the middle lower longitudinal beam (32, 32a) The rear end of the socket is sleeved on the fourth connecting plug (39, 39a) through the fourth receiving cavity (320, 320a), and they are fastened and connected by means of screws or bonding. In this way, the structure of the fourth connecting plug (39, 39a) is similar to the structure of the second connecting plug 19, and the connection method between the fourth connecting plug (39, 39a) and the corresponding longitudinal and transverse beams is also Similar to how the second connecting plug 19 is connected to the corresponding longitudinal and transverse beams, details can be understood with reference to FIG. 8A and related discussions, and will not be described in detail here.

Secondly, height adjustment feet 37 are provided under the lower main frame 300 , so as to facilitate the movement of the work counter 100 .

Regarding the counter intermediate unit 200, as shown in Fig. 1, Fig. 2 and Fig. 9, a longitudinal support side plate and a transverse support side plate are arranged between the upper main frame 1 and the lower main frame 300, and the longitudinal support side The panels and the lateral support side panels can be assembled into a counter intermediate unit 200 .

The counter intermediate unit 200 includes longitudinal support side panels (2, 2a) and transverse support side panels 2b. The rear ends of the two longitudinal support side plates (2, 2a) are respectively connected to the left and right ends of one of the transverse support side plates 2b, and the longitudinal support side plates (2, 2a) and the transverse support The joints of the side plates 2b are arranged in an L shape to form a storage space 28 with a front opening and capable of storing objects. In this way, the experimental items can be stored in the storage space 28 through the front opening, which increases the storage space of the laboratory work counter 100 and improves the practicality. In addition, the lateral support side plate 2b and the two longitudinal support side plates (2, 2a) that make up the storage space 28 also form a frame-like support mechanism, which further improves the ability to overcome external longitudinal or lateral thrust, and resists The ability of the downward pressing force transmitted from the workbench panel 4 .

The longitudinal support side panels (2, 2a) have a similar structure, and the longitudinal support side panel 2 is taken as an example for introduction below. As shown in Figure 9, the longitudinal support side plate 2 itself includes a core plate 21 processed from a non-metallic corrosion-resistant plate such as a physical and chemical plate and a metal plate edging (22, 23, 24) around the core plate 21. and 25). Wherein the metal plate edge 22 arranged at the L-shaped connection between the longitudinal support side plate 2 and the transverse support side plate 2b is arranged on the upper end and the lower end of the longitudinal support side plate 2 along the horizontal direction The metal plate bindings (24, 25) arranged are all L-shaped plate bindings. As shown in FIG. 10 , the structure of the L-shaped plate edging is introduced by taking the metal plate edging 22 as an example. The metal plate edge 22 is shaped like a profile and includes a socket cavity 220 and two socket slots (221, 222) arranged perpendicularly to each other, and the two socket slots (221, 222) are arranged on The outer side of the cavity wall of the socket cavity 220 . The metal plate edging 23 arranged along the vertical direction at the front end of the longitudinal support side plate 2 a at the front opening of the storage space 28 is a T-shaped plate edging. As shown in FIG. 10A , the structure of the T-shaped plate hemming is introduced by taking the metal plate hemming 23 as an example. The metal plate edging 23 is shaped like a profile and includes a socket cavity 230 and a socket slot 231 , and the socket slot 231 is arranged outside the cavity wall of the socket cavity 230 . The front end of the core board 21 is received in the socket slot 231 . Among them, the core plate 21 processed by non-metallic corrosion-resistant plates such as physical and chemical plates can greatly improve the corrosion resistance, and it is not easy to weaken the structural strength and support strength of the longitudinal support side plate 2 due to corrosion. The board wrapping (22, 23, 24 and 25) is a wrapping profile that encapsulates the outer edge of the core board 21, and can protect and modify the outer edge of the core board 21 to form the core board. 21's outer border. Since the metal plate edging (22, 23, 24 and 25) is made of metal material and has relatively ideal anti-deformation strength, the core plate is formed by the metal plate edging (22, 23, 24 and 25) The outer frame of 21 can further strengthen the structural strength and support strength of the longitudinal support side plate 2a as a whole.

The lateral support side plate 2b also includes a core plate 21b processed from physical and chemical plates and metal plate wrapping (25b, 24b, 22b, 22, 22b). The metal plate edging (25b, 24b) arranged horizontally on the upper end and the lower end of the lateral support side plate 2b is also an L-shaped plate edging. The L-shaped connection between the longitudinal support side plate 2 and the lateral support side plate 2b shares an L-shaped plate edge 22 arranged in the vertical direction, and the L-shaped plate edge 22 One of the socket slots 221 is used to receive the core plate 21 of the longitudinal support side plate 2 , and the other socket slot 222 is used to receive the core plate 21 b of the lateral support side plate 2 b. Similarly, the L-shaped connection between the longitudinal support side plate 2a and the transverse support side plate 2b also shares an L-shaped plate wrapping 22b arranged along the vertical direction. In this way, the longitudinal support side plates (2, 2a) and the transverse support side plates 2b can be connected together by the L-shaped plate hemming (22, 22b) and form a relatively stable positional relationship.

According to the above technical solution, it can also be found that at the four ends of the longitudinal support side plate (2, 2a) and the transverse support side plate 2b

All are surrounded by metal plate edging, so that the plate edging can store the ends of the longitudinal support side panels (2, 2a) and the transverse support side panels 2b, on the one hand, it does not need to be overdone for appearance considerations Multiple surface treatments are carried out on the outer sides of the longitudinal support side plates (2, 2a) and the lateral support side plates 2b, and there is no need to precisely process tenon structures, which greatly simplifies the processing technology. On the other hand, the panel edging can also become the decorative frame of the longitudinal support side panel (2, 2a) and the lateral support side panel 2b, and the panel edging can be made of a material different from that of the core panel (21 , 21a, 21b) so that the longitudinal support side panel (2, 2a) and the transverse support side panel 2b have a strong and obvious boundary effect.

In order to strengthen the connection between the longitudinal support side panels (2, 2a) and the lateral support side panels 2b, a three-dimensional corner connection with one pin (71, 72, 73) in the XYZ three-dimensional directions is also included 7, including three-dimensional corner connectors (7, 7a, 7b, 7c, 7d, 7e, 7f, 7g), which have similar structures but are arranged in different positions. Wherein, the three-dimensional corner connectors (7, 7a, 7b, 7c) are respectively arranged at the upper end and the lower end of the L-shaped connection. The three-dimensional corner connectors (7, 7a, 7b, 7c) are connected in a similar way to the corresponding plate wrapping, and the three-dimensional corner connector 7 arranged at the upper end of the L-shaped connection is taken as an example for introduction below, The Z-direction dimension pin socket 72 of the three-dimensional corner connector 7 is inserted in the socket cavity 220 of the L-shaped board edge 22 arranged in the vertical direction at the L-shaped connection, and the Z-direction dimension pin 72 is fixedly connected with the L-shaped plate edging 22 arranged in the vertical direction by means of screw connection or bonding, and the pins (71, 73) of the two dimensions of XY are respectively inserted into the plate edging 25 in the socket cavity 250 and the socket cavity 250b in the plate wrapping 25b. In this way, the connection stability between the longitudinal support side panels (2, 2a) and the transverse support side panels 2b is enhanced. When the counter intermediate unit 200 is erected and subjected to upward pulling force or in a suspended state, it is not easy to fall apart.

It also includes upper and lower connecting rods ( 26 , 26 a ) formed on the upper and lower sides of the front opening of the storage space 28 by using the T-shaped plate hemming. The three-dimensional corner connectors ( 7d , 7e , 7f , 7g ) are arranged at the front opening of the storage space 28 . The three-dimensional corner connectors ( 7d , 7e , 7f , 7g ) are connected in a similar manner to the corresponding board wrapping, and the three-dimensional corner connector 7d is used as an example for introduction below. The Z-direction dimension pin 72d of the three-dimensional corner connector 7d is plugged into the socket cavity 230 of the T-shaped panel edge 23 arranged in the vertical direction at the front end of the longitudinal support side panel 2 and the The Z-dimension pin and the board edge 23 are fixedly connected by means of screw connection or bonding, and the X-dimension pin 71d of the three-dimensional corner connector 7d is plugged into the socket of the upper connecting rod 26 In the cavity 260 , the Y-dimension pins 72 are plugged into the socket cavity 250 of the upper end of the longitudinal support side plate 2 where the L-shaped panel edge 25 is arranged in the horizontal direction.

A bottom core board 29 is provided below the storage space 28, and the bottom core board 29 is inserted into the socket slot of the T-shaped board edge of the lower connecting rod 25a. The socket of the L-shaped plate wrapping (24, 24a) at the lower end of the plate (2, 2a) and the socket of the L-shaped plate wrapping 24b at the lower end of the lateral support side plate 2b in the slot. A top core board (27, 27a) is arranged above the storage space 28, and the top core board 27 is plugged into the socket of the board edge (25, 25a, 25b), and the top core board The plate 27a is plugged into the socket socket of the T-shaped plate edge of the upper connecting rod 26 and the upper end of the longitudinal support side plate (2, 2a) and the transverse support side plate 21b. In the bearing slot of the plate edge (25,25a) of L type.

Further, the pins of the three-dimensional corner connector 7 are fixedly connected to the inserted board edge (22, 23, 24 and 25). In this way, in a specific application, the pins of the three-dimensional corner connector 7 can be connected with the inserted board edge (22, 23, 24 and 25) by using screws or connecting glue, etc., which can strengthen the three-dimensional corner connector 7. The connection strength between the pins of the corner connector 7 and the edge of the board (22, 23, 24 and 25) to be inserted.

Another counter intermediate unit 200 a is also arranged between the upper main frame 1 and the lower main frame 300 , and the counter intermediate unit 200 a is located on the left side of the counter intermediate unit 200 . The structure of the counter intermediate unit 200 a is similar to that of the counter intermediate unit 200 discussed above, and also has one storage space 28 . In this way, one accommodating space 28 is respectively provided on the left and right sides between the upper main frame 1 and the lower main frame 300 . This can not only further increase the storage space of the laboratory work counter 100 and improve the practicality, but also form the frame-like support on the left and right sides between the upper main frame 1 and the lower main frame 300. mechanism, so that the left and right sides of the workbench panel 4 can get substantially consistent support, and the overall stability of the work counter 100 is improved.

As shown in Figure 2, Figure 11, Figure 12, Figure 13 and Figure 14, the work counter 100 also includes a drawer 500, the drawer 500 has an inner drawer 5, and the inner drawer 5 is arranged in the storage space 28 . The number of the inner drawers 5 can be set to 1 or 2, 3 or more according to design requirements. The inner drawer 5 has front, rear, left and right side wall bodies (501, 502, 503, 504) and a bottom plate body 504 made of non-metallic corrosion-resistant plates, and the front, rear, left and right side wall bodies (501, 502, 503, 504) and the bottom plate body 504 are connected by bonding. In this way, compared with the drawer 500 that uses all metal materials, the inner drawer 5 made of non-metallic corrosion-resistant board can greatly improve the corrosion resistance, and there will be no pollution in the inner drawer 5 due to the corrosion of the inner drawer 5. experimental equipment.

The drawer 500 also has a metal outer plate 51 and a decorative panel 52 arranged on the outer side of the inner drawer 5 . The metal outer plate 51 includes a plate-shaped outer plate main body 511 and a bent edge 512 extending outward from the upper part of the outer plate main body 511. The outer plate main body 511 and the bent edge 512 Formed integrally, a groove-shaped holding groove 513 is formed on the upper part of the metal outer plate 51 through the bending edge 512 . In this way, human hands can control the metal outer panel 51 through the grip groove 513 , so that the drawer 500 can be pulled conveniently. The height of the outer plate main body 511 is greater than the height of the inner drawer 5 and is located outside the front side wall body 501 of the inner drawer 5 so as to cover the outer side of the inner drawer 5. The outer plate main body 511 and the inner drawer 5 The front side walls 501 of the inner drawer 5 are connected by screws, clamping or bonding. The decorative panel 52 is connected to the outer side of the outer panel main body 511 and is located below the bent edge 512, and the outer surface of the decorative panel 52 and the outer surface of the bent edge 512 have different color exterior decorations. Floor. The metal outer panel 51 and the decorative panel 52 are two different components, although they may be detachably or irrevocably connected together, for this reason, the metal outer panel 51 and the decorative panel 52 can be connected before assembly. The decorative panels 52 are respectively processed into components of different shapes and colors, and when they are assembled, the synergistic effect between them is used to match the drawers 500 with different appearance textures, colors and other effects. For this reason, this structure can flexibly adjust the shape, color and even the material itself of the metal outer plate 51 and decorative panel 52 on the outer side of the inner drawer 5 to provide basic structural conditions to meet the user's ever-increasing aesthetic needs.

The manufacturing material of the decorative panel 52 can be separated from the restriction of the metal outer panel 51 and has various options. In this embodiment, the decorative panel 52 is a sheet metal part with an outer finish 521 and The decorative surface 521 has an inner folded edge 522 bent inward, and the decorative panel 52 is detachably connected to the outer panel main body 511 through the inner folded edge 522 and screws. Of course, in other embodiments, the decorative panel 52 can also be welded to the outer panel main body 511 through the inner fold 522 . In this way, the decorative panel 52 is a shell-shaped sheet metal part with a cavity and has a certain thickness. When the decorative panel 52 is connected to the outer side of the outer panel main body 511, the decorative panel 52 is connected to the outer side of the outer panel main body 511 with a metal decorative plate with a certain thickness, so that the outer surface of the entire drawer 500 The finish appears fuller and thicker. The use of the shell-like structure of the decorative panel 52 can greatly reduce the amount of consumable materials and reduce the manufacturing cost.

The decorative panel 52 made of sheet metal is relatively easy to be corroded by acid and alkali, so generally an anti-corrosion coating is applied on the decorative panel 52 . Alternatively, the decorative panel 52 is made of a non-metal corrosion-resistant plate. A further technical solution for this may also be that the decorative panel 52 is a non-metallic corrosion-resistant plate and is clamped, glued or connected to the outer panel main body 511 by screws. Wherein, the non-metallic corrosion-resistant plate refers to a non-metallic industrial plate that has relatively high corrosion resistance and fire resistance and is suitable for use in laboratories, such as physical and chemical plates and ceramic plates.

In order to further optimize the shape of the drawer 500 , the appearance structure of the bent edge 512 and the decorative panel 52 is further improved below. As shown in Figure 11 and Figure 13, the outside of the left and right sides of the bending edge 512 has chamfers (5121, 5122), and the length L of the hypotenuse of the chamfering (5121, 5122) is that the bending edge 512 is opposite to It is more than 1.5 times of the height H protruding outward from the outer plate main body 511 . In this way, relatively obvious chamfers (5121, 5122) are formed on the outer sides of the left and right sides of the bending edge 512 to strengthen the three-dimensional and dynamic sense of the bending edge 512, so that the bending edge 512 will not be too rigid . In addition, through the chamfering (5121, 5122) to modify the shape of the left and right sides of the bending edge 512, in addition to producing the above-mentioned good appearance effect, it can also form The inwardly retracted avoidance area prevents the user's limbs from easily colliding with the left and right sides of the bending edge 512 and being scratched. Moreover, the chamfer ( 5121 , 5122 ) can also strengthen the structural strength of the bent edge 512 , which is beneficial to maintain its original appearance shape and not easily deformed during long-term use.

As shown in Fig. 11 and Fig. 13, the left and right sides of the decorative panel 52 have chamfers (561, 5212) on the outer sides, and the chamfer angle on the bent edge 512 is basically the same as that on the decorative panel 52. same. In this way, relatively obvious chamfers are also formed on the outer sides of the left and right sides of the decorative panel 52 to enhance the three-dimensional and dynamic sense of the decorative panel 52 . An inwardly indented avoidance area can also be formed by the chamfering, so as to prevent the user's limbs from easily colliding with the left and right sides of the decorative panel 52 and being scratched. Moreover, the chamfer ( 561 , 5212 ) can also strengthen the structural strength of the decorative panel 52 , which is beneficial for maintaining the original appearance shape and not easily deformed during long-term use. In addition, the chamfering angle on the bending edge 512 is basically the same as the chamfering angle on the decorative panel 52, so that the bending edge 512 and the decorative panel 52 have a more coordinated appearance style. .

Further, the outer surface of the decorative panel 52 is substantially flat with the outer surface 5121 of the bent edge 512 . In this embodiment, the outer surface of the decorative panel 52 is the outer decorative surface 521 . In this way, viewed from the side, the decorative panel 52 and the bent edge 512 have substantially the same longitudinal width (thickness) W, so as to create a solid structure with a certain thickness composed of the decorative panel 52 and the metal outer panel 51. As for the appearance effect of the board body, the decorative panel 52 and the metal outer panel 51 are integrated, making the outer surface of the entire drawer 500 look very simple and thick. In addition, the outer surface of the bent edge 512 will not be easily scratched due to protruding from the outer surface of the decorative panel 52 and hurt the user. In addition, the left and right sides of the decorative panel 52 are flush with the left and right sides of the outer panel main body 511 . The lower side of the decorative panel 52 is flush with the lower side of the outer panel main body 511 .

As shown in FIG. 11 and FIG. 12 , the notch of the gripping groove 513 may be opened upward, and the decorative panel 52 directly leans against the lower edge of the bent edge 512 . Or as shown in Fig. 11 and Fig. 12, the notch of the gripping groove 513 is arranged downward, and the upper edge of the decorative panel 52 and the lower edge of the bending edge 512 forming the gripping groove 513 A finger-avoiding gap 53 that allows fingers to be inserted into the holding groove 513 is reserved between them. In this way, dust accumulation in the gripping groove 513 can be avoided, and fingers can be conveniently inserted into the gripping groove 513 to control the drawer 500 by means of the avoidance finger gap 53. The avoiding finger gap 53 forms a decorative groove on the outer surface of the entire drawer 500, so that the outer surface of the drawer 500 will not be so rigid but rather flexible, and the bent edge 512 is formed on the edge of the avoiding finger gap 53. A decorative narrow ribbon of a different color than the decorative panel 52 is formed above. End plugs (not shown in the figure) are respectively provided at the left and right ends of the holding groove 513 . In this way, the left and right ends of the holding groove 513 are blocked by means of the plugs, which can prevent the sharp left and right ends of the holding groove 513 from being scratched and hurt the user, and make the entire drawer 500 The outer surface appears full.

The upper main frame 1 and the lower main frame 300 are similar to the supporting connection structure between the supporting side plates of the counter intermediate unit (200, 200a), and the following will focus on the upper main frame 1 and the lower main frame 300 A supporting connection structure with the supporting side panels of the counter intermediate unit 200 .

As shown in Fig. 2, Fig. 3 and Fig. 5, the longitudinal supporting side plates (2, 2a) respectively stand on the lower longitudinal beams (31, 32) and abut on the upper longitudinal beams (15, 16 ), the lateral support side plate 2b stands on the lower lateral beam 33 and under the upper lateral beam 12 . Wherein, the longitudinal support side panels (2, 2a) stand on the lower longitudinal beams (31, 32), which can be interpreted as the longitudinal support side panels (2, 2a) along the lower longitudinal beams (31 , 32) arranged in the longitudinal extension direction and stacked on the lower longitudinal beams (31, 32), the longitudinal support side plates (2, 2a) and the lower longitudinal beams (31, 32) in the longitudinal direction Overlapping support areas with a relatively large area. In addition, the longitudinal support side panels (2, 2a) are supported under the upper longitudinal beams (15, 16), which can be interpreted as the longitudinal support side panels (2, 2a) along the upper longitudinal beams (15 , 16) arranged in the longitudinal extension direction and stacked under the upper longitudinal beams (15, 16), the longitudinal support side plates (2, 2a) and the upper longitudinal beams (15, 16) in the longitudinal direction Overlapping support areas with a relatively large area. To sum up, between the upper longitudinal beam (15, 16) and the longitudinal support side plate (2, 2a), the lower longitudinal beam (31, 32) and the longitudinal support side plate (2, 2a) The longitudinally arranged superimposed support areas are formed to have a relatively large area. In said superimposed support zone, substantially every area of said upper longitudinal beam (15, 16) is capable of resting on said longitudinal support side panel (2, 2a) to obtain said longitudinal support side panel (2, 2a), and each region of the longitudinal support side plate (2, 2a) can also basically rest on the lower longitudinal beam (31, 32) to obtain the lower longitudinal beam ( 31, 32), so that the upper longitudinal beams (15, 16) can bear the self-gravity of the workbench panel 4 and the gravity of the items placed on the workbench panel 4. The resultant force is relatively evenly transmitted to the longitudinal support side plates (2, 2a), and relatively evenly transmitted to the lower longitudinal beams (31, 32) via the longitudinal support side plates (2, 2a). At this time, in the stacked support area, no matter what the upper longitudinal beams (15, 16), the longitudinal support side plates (2, 2a) and the lower longitudinal beams (31, 32) bear is relatively balanced The lower pressing force avoids or reduces the uneven distribution of the lower pressing force and causes the partial area of the upper longitudinal beam (15, 16), the longitudinal support side plate (2, 2a) or the lower longitudinal beam (31, 32) If the force is too large, obvious destructive twisting and deformation will occur, which will affect the overall stability of the workbench. The lateral support side plate 2b stands on the lower lateral beam 33 and bears under the upper lateral beam 12, which can also achieve the above-mentioned similar technical effect, which will not be repeated here.

As shown in FIG. 5 , the plate wrapping 25 b at the upper end of the lateral support side plate 2 b is connected to the upper transverse beam 12 of the upper main frame 1 through a connecting piece 117 . The connecting piece 117 is a connecting screw, and the connecting screw passes through the upper transverse beam 12 and is connected to the panel edge 25b. Of course, in other embodiments, the connecting piece 117 can also be a connecting piece, a part of the connecting piece is locked on the plate edge 25b by a fastener, and another part of the piece is locked by a fastener. Lock to the corresponding upper transverse beam 12. In this way, a stable connection relationship is formed between the lateral support side plate 2b and the upper transverse beam 12 by means of the connecting piece 117, and the lateral support side plate 2b is positioned through the connection relationship, so as to be firmly supported. Under the upper transverse beam 12 of the upper main frame 1 . In addition, the lateral support side plate 2b forms a connection relationship with the connecting piece 117 through the plate edge 25b, so that the plate edge 25b becomes an auxiliary positioner for the core plate 21b of the support side plate 2b, so The connecting piece 117 does not need to be connected to the core board 21b to position the core board 21b, which can reduce or avoid damage to the core board 21b caused by the connection of the connecting piece 117. Secondly, the plate wrapping 25b made of metal has more ideal toughness and structural strength than the core plate 21b processed from the non-metallic corrosion-resistant plate. When the plate edging 25b is on, the plate edging 25b will not have obvious defects such as cracks and fragmentation to weaken its own structural strength, and the plate edging 25b can be formed with the connecting piece 117. Stable strong connection relationship. Similarly, the plate wrapping (25, 25a) at the upper end of the longitudinal support side plate (2, 2a) and the upper longitudinal beam (15, 16) of the upper main frame 1 are also connected by connecting pieces stand up. In order to enable the supporting side panels (2, 2a, 2b) to stand firmly on the lower transverse beams (3a, 33) and lower longitudinal beams (31, 32a) of the lower main frame 300, the supporting The plate wrapping (24, 24a, 24b) at the lower end of the side plate (2, 2a, 2b) and the lower main frame 300 can also be connected by a connecting piece.

Claims (13)

1. The drawer comprises an inner drawer capable of accommodating other objects, and is characterized in that a metal outer plate and a decorative panel are also provided on the outside of the inner drawer, wherein the metal outer plate includes a plate-shaped outer plate main body and A bent edge extending outward from the upper part of the outer plate main body, the outer plate main body and the bent edge are integrally formed, and a groove is formed on the upper part of the metal outer plate by the bent edge shaped holding groove, the outer plate main body covers the outer side of the inner drawer and is connected to the inner drawer, the decorative panel is connected to the outer side of the outer plate main body and is located below the bending edge, so The outer surface of the decorative panel and the outer surface of the bent edge have outer decoration layers of different colors. 2. The drawer according to claim 1, characterized in that, the notch of the holding groove is arranged downwards, the upper edge of the decorative panel and the lower edge of the bending edge forming the holding groove There is reserved between the finger gaps that can allow fingers to be inserted into the holding groove to avoid fingers. 3 . The drawer according to claim 1 , characterized in that end plugs are provided on the left and right ends of the holding groove respectively. 4 . 4. The drawer according to claim 1, characterized in that, the outer sides of the left and right sides of the bent edge have chamfers, and the length of the hypotenuse of the chamfer is the direction of the bent edge relative to the main body of the outer panel. More than 1.5 times the height of the outer protrusion. 5 . The drawer according to claim 4 , wherein the outer sides of the left and right sides of the decorative panel have chamfers, and the angles of the chamfers on the bent sides are substantially the same as the angles of the chamfers on the decorative panel. 6. The drawer according to claim 1, wherein the outer surface of the decorative panel is substantially flat with the outer surface of the bent edge. 7. The drawer according to any one of claims 1 to 6, wherein the decorative panel is a sheet metal part with an outer facing and an inner flange bent inwardly from the outer facing, and the decorative panel passes through The inner flange is welded to the outer panel main body, or the decorative panel is detachably connected to the outer panel main body through the inner flange and screws. 8. The drawer according to any one of claims 1 to 6, wherein the decorative panel is a non-metallic corrosion-resistant plate and is clipped, bonded or connected to the main body of the outer panel by screws. 9. The drawer according to any one of claims 1 to 6, wherein the left and right sides of the decorative panel are flush with the left and right sides of the outer panel main body. 10. The drawer according to any one of claims 1 to 6, wherein the lower side of the decorative panel is flush with the lower side of the outer panel main body. 11. The drawer according to any one of claims 1 to 6, wherein the height of the main body of the outer panel is greater than the height of the inner drawer. 12. The drawer according to any one of claims 1 to 6, wherein the inner drawer has front, rear, left and right side wall bodies and bottom plate bodies made of non-metallic corrosion-resistant plates, the front, The rear, left, and right side walls and the bottom plate are connected by bonding, the main body of the outer side plate is located outside the front side wall of the inner drawer, and the main body of the outer side plate is connected to the front side wall of the inner drawer. The bodies are clamped, bonded or connected by screws. 13. The laboratory cabinet using the drawer according to any one of claims 1 to 12, the laboratory cabinet comprises a countertop and a cabinet facade part located below the countertop, the drawer is twitchably installed In the cabinet facade section.