CN110714959B - Furniture layer backplate connection structure - Google Patents
Furniture layer backplate connection structure Download PDFInfo
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- CN110714959B CN110714959B CN201911092421.0A CN201911092421A CN110714959B CN 110714959 B CN110714959 B CN 110714959B CN 201911092421 A CN201911092421 A CN 201911092421A CN 110714959 B CN110714959 B CN 110714959B
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- expansion
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- laminate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/10—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of bayonet connections
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
- F16B13/06—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve
- F16B13/063—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander
- F16B13/066—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander fastened by extracting a separate expander-part, actuated by the screw, nail or the like
- F16B13/068—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander fastened by extracting a separate expander-part, actuated by the screw, nail or the like expanded in two or more places
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Assembled Shelves (AREA)
- Connection Of Plates (AREA)
Abstract
The invention discloses a furniture layer backboard connecting structure which is formed by assembling a plurality of laminates, a plurality of backboard and a plurality of side boards, and also comprises a laminate shaper, wherein the laminate shaper comprises a reinforcing rib extending along the length direction of the laminate, a buckle bolt and an embedded part, the laminate is provided with a mounting groove matched with the reinforcing rib, the reinforcing rib comprises a bottom plate and a base, two ends along the length direction of the base are respectively provided with a threaded hole, an external thread matched with the threaded hole of the base is arranged outside a sleeve of the buckle bolt, and a positioning connector of the buckle bolt is connected with the embedded part. Compared with the prior art, the laminate plate structure has the advantages that: the layer backboard structure is characterized in that the layer board is provided with the layer board shaper, so that the layer board cannot sag or deform after bearing for a long time, and the large backboard can be assembled by adopting backboard connecting pieces and is connected with the layer board, so that the overall structure of the cabinet body is better and firmer, and the appearance of furniture and the like cannot be influenced by hiding hardware fittings.
Description
Technical Field
The invention relates to the technical field of furniture, in particular to a cabinet body.
Background
The cabinet bodies of cabinets such as a wardrobe, a bookcase, a decoration cabinet, a filing cabinet and the like in the modern furniture industry are generally formed by connecting plates by adopting three-in-one connecting pieces and assembling the plates. Of these boards, boards in the horizontal direction are called plywood, boards in the vertical direction against walls are called back boards, and boards in the vertical direction other than the back boards are called side boards. Due to the limitation of the width of the sheet, the maximum width of a single sheet is 1220mm, typically 800-1000mm, and the laminate with this width is supported only by 4 connectors, i.e. 4 support points, and the laminate part located in the middle of the 4 support points is very weak, and sagging deformation of the laminate occurs after long-time bearing.
There is a need for improvement.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a furniture layer backboard connecting structure, wherein a laminate board of the furniture layer backboard connecting structure cannot deform under long-time bearing.
1. The furniture layer backboard connecting structure is formed by splicing a plurality of laminates, a plurality of backboard and a plurality of side boards, and is characterized by further comprising a laminate shaper, wherein at least one laminate shaper is embedded in the laminate, the laminate shaper comprises a reinforcing rib, a buckle bolt and an embedded part which extend along the length direction of the laminate, the laminate is provided with a mounting groove matched with the reinforcing rib, the cross section shape of the mounting groove is matched with the cross section shape of the reinforcing rib, the reinforcing rib comprises a bottom plate and a base vertical to the bottom plate, two ends along the length direction of the base are respectively provided with a threaded hole,
The fastening bolt comprises a sleeve, a first connecting rod and a first compression spring, wherein one end of the first connecting rod is provided with a first positioning connector, the other end of the first connecting rod is arranged in the sleeve, the middle part of the first connecting rod is provided with a positioning meson extending outwards along the radial direction, the inner wall of the sleeve is provided with a first step part and a second step part which are spaced apart along the axial direction, the positioning meson is positioned between the first step part and the second step part, the first compression spring is sleeved outside the first connecting rod and is arranged between the positioning meson and the second step part, the peripheral wall of the sleeve of the fastening bolt is provided with external threads which are matched with a threaded hole of the base,
The inside of built-in fitting has the accommodation chamber that is used for holding first locating connector, and the front end in accommodation chamber is equipped with the front panel that is used for blocking first locating connector, is equipped with a locating hole on the front panel, and this locating hole is by macropore and aperture link up and is constituteed, and the macropore can supply first locating connector to pass through, and the aperture of aperture suits with the diameter of first connecting rod.
Optionally, the vertical connection limit of two adjacent backplate amalgamations of furniture layer backplate connection structure is put together through backplate connecting piece concatenation, and the backplate connecting piece is the rectangular form section bar that extends along vertical direction, and the left and right sides of backplate connecting piece all is equipped with the caulking groove of being connected with the backplate, and the connection limit embedding of backplate is in this caulking groove.
Optionally, the side plates and the laminate of the furniture layer backboard connecting structure are connected through an expansion connecting piece, the expansion connecting piece comprises an expansion sleeve, a movable block, a second compression spring, a second connecting rod and an embedded part, the expansion sleeve is of a hollow cylinder structure, the expansion sleeve is provided with an inner hole extending along the axial direction, the movable block, the second compression spring and the second connecting rod are arranged in the expansion sleeve, the expansion sleeve is provided with an expansion part capable of expanding outwards in the radial direction, the movable block is correspondingly arranged at the inner hole of the expansion part, the front end of the connecting rod is abutted against the movable block, the rear end part of the connecting rod extends out of the expansion sleeve, the inner side wall of the expansion sleeve is sequentially provided with a first limit boss and a second limit boss along the axial direction, the middle part of the connecting rod is convexly provided with a stop part, the stop part is positioned between the first limit boss and the second limit boss, the second compression spring is sleeved outside the second connecting rod and is arranged between the first limit boss and the stop part,
The rear end part of the second connecting rod can move forwards by applying inward operating force to the rear end part of the second connecting rod, the rear end part of the second connecting rod is hidden in the inner hole of the expansion sleeve, the second connecting rod moves forwards to push the movable block to move forwards, the movable block enables the expansion part to expand outwards in radial direction,
The rear end of the second connecting rod is provided with a second positioning connector which is used for being connected with the embedded part, the inside of the embedded part is provided with a containing cavity which is used for containing the second positioning connector, the front end of the containing cavity is provided with a front panel which is used for clamping the second positioning connector, the front panel is provided with a positioning hole, the positioning hole is formed by a large hole and a small hole in a penetrating way, the large hole can be used for the second positioning connector to pass through, and the aperture of the small hole is matched with the diameter of the second connecting rod.
Optionally, the expansion sleeve comprises two first bodies and two second bodies which are in involution, the first bodies and/or the second bodies are provided with positioning holes, the second bodies and/or the first bodies are correspondingly provided with positioning cog teeth matched with the positioning holes, the end parts of the positioning cog teeth are in hook shapes, and the end parts of the positioning cog teeth are embedded into the positioning holes to enable the first bodies and the second bodies to be connected into a whole.
Optionally, the expansion part is provided with at least one expansion block capable of expanding outwards, the expansion block extends along the axial direction of the expansion sleeve, one side edge of the expansion block is connected with the side wall of the expansion part, and the rest edge of the expansion block is separated from the side wall of the expansion part.
Optionally, the inner hole of the expansion part is gradually reduced along the pushing direction of the movable block, a first guiding inclined plane is arranged in the area, corresponding to the inner side wall of the expansion block, of the outer surface of the front part of the movable block, and a second guiding inclined plane is correspondingly arranged on the inner side wall of the expansion block.
Optionally, a guide plate is arranged in the accommodating cavity of the embedded part, and the guide plate extends obliquely inwards from one side edge of the large hole far away from the small hole to the direction of the small hole.
By adopting the structure, compared with the prior art, the invention has the following advantages: the laminate shaper is arranged in the laminate of the furniture layer back plate connecting structure, so that the laminate cannot sag after bearing for a long time; the back plate on one side of the cabinet body close to the wall is spliced by the back plate connecting piece, the back plate splicing connecting piece can connect a plurality of small back plates which are uniformly distributed along the longitudinal direction to form a large back plate, on one hand, the strength of the back plate is increased, on the other hand, the size of the small back plate is convenient to unify, the problem that the heights of the small back plates are different and the transportation difficulty is increased is avoided, namely, the large back plate is spliced by the back plate connecting piece, the small back plate can be uniformly cut into the same height, the packaging and the transportation are very convenient, the spliced large back plate is more attractive, the back plate connecting piece is provided with a connecting rod, and a three-in-one connecting piece is adopted for carrying out fifth supporting point connection, so that the small back plate is connected with the layer plate and provides a supporting point for the layer plate; when the expansion connecting piece (two-in-one connecting piece) is used for connecting the side plate and the laminate, the surfaces of the side plate and the laminate which are assembled are not provided with exposed mounting holes, so that the cabinet body is more attractive.
Drawings
FIG. 1 is a schematic view of a furniture layer backboard connection structure according to the present invention;
FIG. 2 is a schematic view of the structure of the laminate shaper of the cabinet of the present invention;
FIG. 3 is a schematic front view of the snap bolts and embedments of the ply shaper of FIG. 2.
FIG. 4 is a schematic view of a laminate structure of a furniture layer back panel connection structure according to the present invention and a prior art laminate structure;
FIG. 5 is a schematic view of a back plate connector of the laminated back plate structure of the present invention;
FIG. 6 is a schematic view of the expansion joint and embedment of the laminate back plate structure of the present invention;
FIG. 7 is a schematic cross-sectional view of an expansion joint of the laminated back plate structure of the present invention;
FIG. 8 is an exploded view of an expansion joint of the laminate back panel structure of the present invention;
FIG. 9 is a schematic cross-sectional view of an expansion portion of an expansion joint of the laminate backing plate structure of the present invention expanding in a radial direction;
FIG. 10 is a schematic view of the installation of an expansion joint of the laminate back panel structure of the present invention 1;
FIG. 11 is a schematic view of the installation of an expansion joint of the laminate back panel structure of the present invention, shown in FIG. 2;
FIG. 12 is a schematic view of an expansion joint installation of the laminate back plate structure of the present invention, shown in FIG. 3.
Detailed Description
Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
Referring to fig. 1 to 4, the furniture layer backboard structure provided by the invention is formed by assembling a plurality of laminate plates 02, a plurality of backboard 03 and a plurality of side plates 01, and further comprises a laminate shaper.
The laminate 02 is embedded with at least one laminate shaper, the laminate shaper comprises a reinforcing rib 6 extending along the length direction of the laminate 02, a buckle bolt and an embedded part 3, the laminate is provided with a mounting groove matched with the reinforcing rib 6, the cross section of the mounting groove is matched with that of the reinforcing rib 6, the cross section of the reinforcing rib 6 is T-shaped, the reinforcing rib comprises a bottom plate 62 and a base 61 perpendicular to the bottom plate, two ends along the length direction of the base 61 are respectively provided with a threaded hole 60, the buckle bolt comprises a sleeve 71, a first connecting rod 72 and a first compression spring 73, one end of the first connecting rod 72 is provided with a first positioning connector 721, the other end of the first connecting rod 72 is arranged in the sleeve 71, the middle part of the first connecting rod 72 is provided with a positioning meson 722 extending outwards in the radial direction, the inner wall of the sleeve 71 is provided with a first stepped part 711 and a second stepped part 712 which are axially spaced, the positioning meson 722 is located between the first stepped part 711 and the second stepped part, the first compression spring 73 is sleeved outside the first connecting rod 72 and is arranged between the positioning meson 722 and the second stepped part 712, the outer periphery of the sleeve 71 is provided with an external thread hole 60 for matching with the threaded hole 710 of the base 61. The embedded part 3 is internally provided with a containing cavity for containing the first positioning connector 721, the front end of the containing cavity is provided with a front panel 31 for clamping the first positioning connector 721, the front panel 31 is provided with a positioning hole, the positioning hole is formed by a large hole 302 and a small hole 301 in a penetrating way, the large hole 302 can be used for the first positioning connector 721 to pass through, and the aperture of the small hole 301 is matched with the diameter of the first connecting rod 72. When installed, the reinforcing rib 6 is inserted from one end of the laminate 02, and after installation, the base 61 of the reinforcing rib is embedded in the laminate 02, the bottom plate 62 of the reinforcing rib 6 being substantially aligned with the lower surface of the laminate 02. The snap bolts 7 are then screwed into the threaded holes 60 at both ends of the reinforcing rib 6. The embedded part 3 is arranged on the side plate 01 to be connected, the first positioning connector 721 penetrates through the large hole 302 and stretches into the cavity, the first connecting rod 72 moves from the large hole 302 to the small hole 301 to enable the first positioning connector 721 to be clamped at the front panel 31 of the embedded part 3, and therefore the layer plate 02 provided with the layer plate shaper is arranged with the side plate 01.
Compared with the laminate 02 in the prior art, the laminate shaper provided by the invention has the advantages that the laminate part positioned in the middle of the 4 supporting points is very weak, the plate is easy to deform and sag when bearing heavy objects for a long time, and the reinforcing rib of the laminate shaper is embedded in the laminate 02, so that the strength of the plate 02 is increased, and the stress of the laminate 02 along the length direction of the laminate 02 is uniform, so that the laminate 02 provided with the laminate shaper has a very stable structure, and the problem that the laminate with a longer length in the prior art is easy to deform is solved. The number of ply shapers installed in ply 02 can be designed to be 1,2, 3 according to actual needs.
Referring to fig. 1 and 5, one side of the cabinet body, which is close to the wall, is composed of four back plates 03, vertical connecting edges at the splicing positions of two adjacent back plates 03 are spliced together through a back plate connecting piece 9, the back plate connecting piece 9 is a strip-shaped section bar extending along the vertical direction, caulking grooves 90 connected with the back plates 03 are formed in the left side and the right side of the back plate connecting piece 9, and the connecting edges of the back plates 03 are embedded in the caulking grooves 90. The backplate 03 of the wall one side is leaned on to the cabinet body adopts backplate connecting piece 9 concatenation, has increased the intensity of backplate 03 on the one hand, and on the other hand can unify backplate 03's size, and the problem that the backplate 03 is highly different and then increases the transportation difficulty can not appear, adopts backplate connecting piece 9 concatenation promptly, and backplate 03 can unify to cut into the same height, and is very convenient in packing and transportation, and the backplate of assembling is also more pleasing to the eye.
The existing connecting piece for connecting the side plate and the laminate is usually a three-in-one connecting piece, namely, the connecting piece consists of an eccentric wheel, a connecting rod and a pre-buried nut, and the three-in-one connecting piece has the problem that a mounting hole is exposed. The cabinet body of the invention adopts an expansion connecting piece for connecting the side plate and the laminate.
Referring to fig. 6 to 12, the expansion joint provided by the present invention includes an expansion sleeve 1, a movable block 4, a second compression spring 5, a second connecting rod 2, and an embedded part 3. The expansion sleeve 1 is of a hollow cylinder structure, the expansion sleeve 1 is provided with an inner hole 10 extending along the axial direction, the movable block 4, the second compression spring 5 and the second connecting rod 2 are arranged in the expansion sleeve 1, the expansion sleeve 1 is provided with an expansion part 11 capable of expanding radially outwards, the movable block 4 is correspondingly arranged at the inner hole 10 of the expansion part 11, the front end of the second connecting rod 2 is abutted against the movable block 4, the rear end part of the second connecting rod 2 extends out of the expansion sleeve 1, the inner side wall of the expansion sleeve 1 is sequentially provided with a first limiting boss 101 and a second limiting boss 102 along the axial direction, the middle part of the connecting rod is convexly provided with an annular stop part 20, the stop part 20 is positioned between the first limiting boss 101 and the second limiting boss 102, and the second compression spring 5 is sleeved outside the connecting rod and is arranged between the first limiting boss 101 and the stop part 20. The second limiting boss 102 is used for limiting the stop portion 20, and preventing the second connecting rod 2 from being ejected backward under the acting force of the second compression spring 5.
The rear end of the second connecting rod 2 is provided with a second positioning connector 21 for being connected with the embedded part 3. The embedded part 3 is internally provided with a containing cavity for containing the second positioning connector 21, the front end of the containing cavity is provided with a front panel 31 for clamping the second positioning connector 21, the front panel 31 is provided with a positioning hole, the positioning hole is formed by a large hole 302 and a small hole 301 in a penetrating way, the large hole 302 can be used for the second positioning connector 21 to pass through, and the aperture of the small hole 301 is matched with the diameter of the second connecting rod 2. During installation, the second positioning connector 21 penetrates through the large hole 302 and stretches into the cavity, and the second connecting rod 2 moves from the large hole 302 to the small hole 301 to enable the second positioning connector 21 to be clamped at the front panel 31 of the embedded part 3. Obviously, even without the embedded part 3, it is also possible that the rear end portion of the second connecting rod 2 is directly connected with the mounting hole of the side plate 01. The cooperation of the embedded part 3 and the second positioning connector 21 can increase the stability of the side plate 01 and the laminate 02.
Referring to fig. 9, the rear end portion of the second connecting rod 2 is moved forward by applying an inward operating force to the rear end portion of the second connecting rod 2, the rear end portion of the second connecting rod 2 is hidden in the inner hole 10 of the expansion sleeve 1, the second connecting rod 2 moves forward to push the movable block 4 to move forward, the movable block 4 expands the expansion portion 11 radially outwards to expand the wood board; after the second connecting rod 2 is released, the rear end portion of the second connecting rod 2 can move backward to extend out of the expansion sleeve 1 under the restoring force of the second compression spring 5.
The expansion sleeve 1 comprises a first body 1a and a second body 1b which are matched, and the first body 1a and the second body 1b are mutually buckled or separated through a locking structure. The first body 1a and/or the second body 1b are/is provided with a positioning hole 12, the second body 1b and/or the first body 1a are/is correspondingly provided with positioning cog teeth 13 matched with the positioning hole 12, the end parts of the positioning cog teeth 13 are hook-shaped, and the end parts of the positioning cog teeth 13 are embedded into the positioning hole 12 to enable the first body 1a and the second body 1b to be connected into a whole.
The expansion part 11 is provided with at least one expansion block 110 capable of expanding outwards, the expansion block 110 extends in the axial direction of the expansion sleeve 1, one side edge of the expansion block 110 is connected with the side wall of the expansion part 11, and the rest edge of the expansion block 110 is separated from the side wall of the expansion part 11. In the present embodiment, the number of the expansion blocks 110 is 4, and the number of the expansion blocks 110 may be 1, 2, 3 or other suitable number. The outer wall of the expansion block 110 is provided with a grain for increasing the surface friction to increase the friction.
The inner hole of the expansion part 11 is set as a reducing hole gradually shrinking along the pushing direction of the movable block 4, a first guiding inclined plane 40 is arranged in the area corresponding to the position of the expansion block 110 on the outer surface of the front part of the movable block 4, a second guiding inclined plane 111 is correspondingly arranged on the inner side wall of the expansion block 110, and the movable block 4 is easy to push forwards due to the first guiding inclined plane 40 and the second guiding inclined plane 111, and meanwhile radial expansion of the expansion block 110 is easy to occur.
In a further technical solution, the outer side wall of the embedded part 3 is provided with lines 33 for increasing friction.
A guide plate 303 is arranged in the accommodating cavity of the embedded part 3, and the guide plate 303 extends from one side edge of the large hole 302 away from the small hole 301 to the direction of the small hole 301 obliquely inwards. The guide plate 303 is arranged, so that a guide effect is achieved when the second positioning connector 21 is clamped into the embedded part 3, and a rebound effect of the second positioning connector 21 is achieved when the second positioning connector 21 moves out of the embedded part 3, so that the second positioning connector 21 is easy to install and detach and can be disassembled and assembled for multiple times.
Referring to fig. 11 and 12, the installation process of the expansion joint provided by the present invention is as follows:
1. pre-punching holes on the side plate 01 and the laminate 02;
2. Knocking the embedded part 3 into a mounting hole on the side plate 01, putting the expansion connecting part into the laminate 02, pressing the second positioning connector 21 inwards, pushing the movable block 4 to move forwards by the second connecting rod 2, and expanding the expansion part of the expansion sleeve to tightly expand the wood plate;
3. the laminate 02 provided with the expansion connecting piece is close to the side plate 01, the positioning connector is aligned with the large hole 302 of the embedded piece 3, the laminate 02 moves forwards along the side plate 01, the positioning connector slides into the small hole 301 from the large hole 302 along the guide plate 303, the second positioning connector 21 of the connecting rod is clamped at the front panel of the embedded piece 3, and the laminate 02 can be installed on the side plate 01.
Referring to fig. 7, when a laminate 02 needs to be installed between two side plates 01, firstly, expansion connectors are installed in installing holes on two sides of the laminate 02, the laminate 02 is placed horizontally, connecting rods of the expansion connectors are aligned with embedded parts on the side plates 01 in height, the laminate 02 is pushed into the space between the two side plates 01 in a flat manner, the second connecting rods 2 can be elastically designed, the laminate 02 can pass through without barriers, positioning connectors of the connecting rods are clamped into the embedded parts, and accordingly the laminate 02 is installed and fixed between the two side plates 01. When the disassembly is needed, the second connecting rod 2 can rebound under the action of the guide plate 303, so that the laminate 02 can be taken out without obstruction and can be repeatedly disassembled and assembled.
The foregoing is merely exemplary of the present invention, and those skilled in the art should not be considered as limiting the invention, since modifications may be made in the specific embodiments and application scope of the invention in light of the teachings of the present invention.
Claims (5)
1. The furniture layer backboard connecting structure is formed by splicing a plurality of laminates, a plurality of backboard and a plurality of side boards, and is characterized by further comprising a laminate shaper, wherein at least one laminate shaper is embedded in the laminate, the laminate shaper comprises a reinforcing rib, a buckle bolt and an embedded part which extend along the length direction of the laminate, the laminate is provided with a mounting groove matched with the reinforcing rib, the cross section shape of the mounting groove is matched with the cross section shape of the reinforcing rib, the reinforcing rib comprises a bottom plate and a base vertical to the bottom plate, two ends along the length direction of the base are respectively provided with a threaded hole,
The fastening bolt comprises a sleeve, a first connecting rod and a first compression spring, wherein one end of the first connecting rod is provided with a first positioning connector, the other end of the first connecting rod is arranged in the sleeve, the middle part of the first connecting rod is provided with a positioning meson extending outwards along the radial direction, the inner wall of the sleeve is provided with a first step part and a second step part which are spaced apart along the axial direction, the positioning meson is positioned between the first step part and the second step part, the first compression spring is sleeved outside the first connecting rod and is arranged between the positioning meson and the second step part, the peripheral wall of the sleeve of the fastening bolt is provided with external threads which are matched with a threaded hole of the base,
The embedded part is internally provided with a containing cavity for containing the first positioning connector, the front end of the containing cavity is provided with a front panel for clamping the first positioning connector, the front panel is provided with a positioning hole which is formed by a large hole and a small hole in a penetrating way, the large hole can be used for the first positioning connector to pass through, the aperture of the small hole is matched with the diameter of the first connecting rod,
The vertical connecting edges of the splicing parts of two adjacent back plates are spliced together through the back plate connecting piece, the back plate connecting piece is a strip-shaped section bar extending along the vertical direction, the left side and the right side of the back plate connecting piece are respectively provided with a caulking groove connected with the back plate, the connecting edges of the back plates are embedded into the caulking grooves,
The side plates are connected with the laminate through an expansion connecting piece, the expansion connecting piece comprises an expansion sleeve, a movable block, a second compression spring, a second connecting rod and an embedded part, the expansion sleeve is of a hollow cylinder structure, the expansion sleeve is provided with an inner hole extending along the axial direction, the movable block, the second compression spring and the second connecting rod are arranged in the expansion sleeve, an expansion part capable of expanding radially outwards is arranged on the expansion sleeve, the movable block is correspondingly arranged at the inner hole of the expansion part, the front end of the connecting rod is abutted against the movable block, the rear end part of the connecting rod extends out of the expansion sleeve, a first limit boss and a second limit boss are sequentially arranged on the inner side wall of the expansion sleeve along the axial direction, a stop part is convexly arranged at the middle part of the connecting rod and between the first limit boss and the second limit boss, the second compression spring is sleeved outside the second connecting rod and is arranged between the first limit boss and the stop part,
The rear end part of the second connecting rod can move forwards by applying inward operating force to the rear end part of the second connecting rod, the rear end part of the second connecting rod is hidden in the inner hole of the expansion sleeve, the second connecting rod moves forwards to push the movable block to move forwards, the movable block enables the expansion part to expand outwards in radial direction,
The rear end of the second connecting rod is provided with a second positioning connector which is used for being connected with the embedded part, the inside of the embedded part is provided with a containing cavity which is used for containing the second positioning connector, the front end of the containing cavity is provided with a front panel which is used for clamping the second positioning connector, the front panel is provided with a positioning hole, the positioning hole is formed by a large hole and a small hole in a penetrating way, the large hole can be used for the second positioning connector to pass through, and the aperture of the small hole is matched with the diameter of the second connecting rod.
2. The furniture layer backboard connecting structure according to claim 1, wherein the expansion sleeve comprises two involuted first bodies and two involuted second bodies, the first bodies and/or the second bodies are/is provided with positioning holes, the second bodies and/or the first bodies are/is correspondingly provided with positioning cog teeth matched with the positioning holes, the end parts of the positioning cog teeth are hook-shaped, and the end parts of the positioning cog teeth are embedded into the positioning holes to enable the first bodies and the second bodies to be connected into a whole.
3. The furniture layer backboard connecting structure according to claim 1, wherein said expansion portion is provided with at least one expansion block capable of expanding outwardly, the expansion block extends in the axial direction of the expansion sleeve, one side edge of the expansion block is connected to the side wall of the expansion portion, and the remaining edge of the expansion block is separated from the side wall of the expansion portion.
4. The furniture layer backboard connecting structure according to claim 1, wherein the inner hole of said expansion portion is gradually reduced in the pushing direction of the movable block, a first guiding inclined surface is provided at a region of the outer surface of the front portion of the movable block corresponding to the inner side wall of the expansion block, and a second guiding inclined surface is provided at the inner side wall of the expansion block.
5. The furniture layer backboard connecting structure according to claim 1, wherein a guide plate is arranged in the accommodating cavity of the embedded part, and the guide plate extends obliquely inwards from one side edge of the large hole away from the small hole to the direction of the small hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911092421.0A CN110714959B (en) | 2019-11-08 | 2019-11-08 | Furniture layer backplate connection structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911092421.0A CN110714959B (en) | 2019-11-08 | 2019-11-08 | Furniture layer backplate connection structure |
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| Publication Number | Publication Date |
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| CN110714959A CN110714959A (en) | 2020-01-21 |
| CN110714959B true CN110714959B (en) | 2024-09-17 |
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| CN201911092421.0A Active CN110714959B (en) | 2019-11-08 | 2019-11-08 | Furniture layer backplate connection structure |
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| CN106969015A (en) * | 2017-05-25 | 2017-07-21 | 刘韦明 | A kind of expansion bolt external member |
| CN107327454A (en) * | 2017-08-14 | 2017-11-07 | 广东安帝斯智能家具组件有限公司 | A kind of intelligent locking type furniture-plates body connector |
| DE202018106278U1 (en) * | 2018-11-05 | 2018-11-16 | Häfele Berlin Gmbh & Co Kg | Connecting bolt for tool-free butt joint of two furniture panels |
| CN110145522B (en) * | 2019-06-19 | 2024-04-02 | 广州花都区乐思富科技有限公司 | Expansion connecting piece |
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