CN117072008A - A door opening and closing mechanism for horizontal electrical appliances - Google Patents

Abstract

The invention provides a door opening and closing mechanism of a horizontal electric appliance, which comprises a base and cams, wherein the base is arranged on a horizontal electric appliance base body, the cams are arranged on the left side and the right side of the cams, the cams are provided with rotating devices, and the rotating devices are provided with rotating tracks which are used for preventing the door body and the horizontal electric appliance base body from interfering with each other during the rotating and opening and closing process. The structure parts are few, the volume is small, the gap between the door body and the base body can be reduced, and the door body is ensured to be completely closed; and during the switching, the rotating device of the cam is utilized to realize that the door body and the horizontal electric appliance base body are not interfered mutually during the rotation, the rotation stability is high, and the normal use of the product is ensured.

Description

A door opening and closing mechanism for horizontal electrical appliances

Technical field

The present invention relates to the technical field of horizontal electrical appliances, specifically a door opening and closing mechanism for horizontal electrical appliances.

Background technique

During the opening process, most horizontal electrical appliance doors need to be connected to their base, especially horizontal refrigeration cabinets, horizontal ovens, etc. The door and base are movablely connected with hinge components, thereby making the door The body rotates up and down to open the door.

The existing Chinese patent number: ZL202220775062. , the flange is located on the rear side of the roller. When the top of the hinge head rotates to the rear side, the flange rotates from the rear side of the roller to the top of the roller, and then reaches the front side of the roller. When closing the door, the door body drives the cam member fixed on the hinge head to rotate. At this time, the flange will squeeze the roller downward, squeezing the spring from the uncompressed state to the compressed state. At the same time, the flange will pass over the top of the roller. When the door reaches the rear side of the roller, the door has been completely closed. Since the spring is in a compressed state, the roller will be pushed upward, and the roller will press against the flange, causing the door to be tightly closed.

However, the above hinge structure has the following shortcomings in practical application as a door opening and closing mechanism of a horizontal refrigerator:

1) Since springs are used to provide elasticity, there are many parts, and the hinge head is rotated to move, the entire door opening and closing mechanism is relatively large, resulting in a large gap between the door body and the base body, and the door body is not closed tightly, which is not conducive to the product. use.

2) If the above hinge structure is used to overcome the gap, the corners of the door body will come into contact with the base of the product during rotation, causing noise and even affecting the normal use of the product.

Contents of the invention

The object of the present invention is to overcome the shortcomings of the prior art and provide a door opening and closing mechanism for a horizontal electrical appliance, which has a simple structure and can reduce the gap between the door body and the base body, so that the door body can be tightly closed and at the same time solve the problem of problems during rotation. There is a problem of mutual interference between the door body and the base of the product.

The object of the present invention is achieved as follows: a door opening and closing mechanism for a horizontal electrical appliance, which includes a base installed on the base body of the horizontal electrical appliance and a cam installed on the door body. The base is connected to the left and right sides of the cam. The cam is provided with a rotating device. The rotating device includes a driving shaft, a connecting shaft and a swing arc rod. The driving shaft is fixed on the left and right inner sides of the base. The swing arc rod is distributed on the left and right sides of the cam and its The swing ends are respectively connected to the connecting shafts, and the connecting shafts are fixed on the swing portion of the cam. The swing ends of the swing arc-shaped rods swing up and down around the driving shaft when the cam rotates, so that the rotating device forms a shape during the rotation opening and closing. The door body and the horizontal electrical appliance base body have a rotation path that does not interfere with each other.

Optimized according to the above, the driving shaft is fixed on the top of the left and right inner sides of the base, the connecting shaft passes through the cam and its two ends are respectively connected to the corresponding swing arc-shaped rods.

According to the above optimization, the bottom surface of the cam is provided with an assembly hole for fixed installation with the door body, and one side of the cam is provided with a connecting ear for fixed installation with the door body. The base is distributed on the left and right sides of the cam. And the base is provided with mounting holes for fixing on the horizontal electrical appliance base body.

According to the above optimization, the shape of the cam is set as an irregular cam body that does not interfere with the door body during the rotation opening and closing period; the shape of the swing arc-shaped rod is consistent with the rotation trajectory of the cam.

According to the above optimization, the cam is provided with a buffer damper for the door body to have a buffer function during closing. The buffer damper is installed in the cam. The fixed end of the buffer damper is fixed on the cam. The buffer damper The movable end is equipped with a buffer connecting rod that slides on a cam, and the cam is provided with a limiting guide groove for the directional sliding of the buffer connecting rod.

According to the above optimization, the shape of the limiting guide groove is consistent with the cam rotation trajectory.

Another solution is a door opening and closing mechanism for a horizontal electrical appliance, which includes a base installed on the base of the horizontal electrical appliance and a cam installed on the door body. The base is connected to the left and right sides of the cam, and the cam is provided with a rotating device. , the rotating device includes a driving shaft, a connecting shaft, a long limiting groove and a limiting arc groove. The long limiting groove and the limiting arc groove are respectively provided on the cam, and the driving shaft and the connecting shaft are installed respectively. Between the left and right inner sides of the base and adaptively connected with the long limiting groove and the limiting arc groove. The long limiting groove moves laterally relative to the driving shaft when the cam rotates and rotates with the driving shaft as a fixed point before being relatively active. The shaft moves longitudinally, during which the limiting arc groove moves up and down relative to the connecting shaft as the cam rotates, so that the rotating device forms a rotational trajectory in which the door body and the horizontal electrical appliance base do not interfere with each other during the opening and closing of the rotation.

According to the above optimization, the driving shaft and the connecting shaft are fixed side by side on the inner side between the base and the base, and the long limiting groove and the limiting arc groove are respectively provided on cams corresponding to the driving shaft and the connecting shaft.

According to the above optimization, the cam is embedded in the door body, the base is distributed on the left and right sides of the cam, and the base is provided with mounting holes for fixing to the horizontal electrical appliance base.

Based on the above optimization, the shape of the cam is set as an irregular cam body that does not interfere with the door body during rotation and opening.

The advantage of the present invention is that the door opening and closing mechanism of this structure has fewer structural components and is small in size, which can reduce the gap between the door body and the base body and ensure that the door body is completely closed; and during the opening and closing period, the cam rotation device is used to achieve The door body does not interfere with the horizontal electrical appliance base during rotation, and the rotation stability is high, ensuring the normal use of the product.

Description of the drawings

Figure 1 is a schematic structural diagram of the closed state of the first embodiment of the present invention.

Figure 2 is a front view of the closed state of the first embodiment of the present invention.

Figure 3 is a front view of the first embodiment of the present invention in a closed state (one side of the base is removed).

Figure 4 is a cross-sectional view of the first embodiment of the present invention in a closed state.

Figure 5 is a schematic structural diagram of the open state of the embodiment of the first solution of the present invention.

Figure 6 is a front view of the first embodiment of the present invention in an open state.

Figure 7 is a front view of the first embodiment of the present invention in an open state (with one side of the base removed).

Figure 8 is an exploded view of the open state of the first embodiment of the present invention.

Figure 9 is an assembly and usage diagram of the closed state of the embodiment of the first solution of the present invention.

Figure 10 is an assembly and use diagram of the first embodiment of the present invention in an open state.

Figure 11 is an assembly and usage diagram of the fully opened state of the first embodiment of the present invention.

Figure 12 is a schematic structural diagram of the closed state of the second embodiment of the present invention.

Figure 13 is a front view of the closed state of the second embodiment of the present invention.

Figure 14 is a front view of the second embodiment of the present invention in a closed state (one side of the base is removed).

Figure 15 is a schematic structural diagram of the open state of the second embodiment of the present invention.

Figure 16 is a front view of the open state of the second embodiment of the present invention.

Figure 17 is a front view of the second embodiment of the present invention in an open state (one side of the base is removed).

Figure 18 is an exploded view of the embodiment of the second aspect of the present invention.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

According to the accompanying drawings 1 to 11, a door opening and closing mechanism of a horizontal electrical appliance includes a base 1 installed on the base of the horizontal electrical appliance and a cam 2 installed on the door body. The base 1 is connected to the left and right sides of the cam 2 On both sides, the cam 2 is provided with a rotating device. The rotating device includes a driving shaft 3, a connecting shaft 4 and a swing arc rod 8. The driving shaft 3 is fixed on the left and right inner sides of the base 1. The swing arc rod 8 is distributed on the left and right sides of the cam 2 and its swing ends are respectively connected to the connecting shaft 4. The connecting shaft 4 is fixed on the swing part of the cam 2. When the swing end of the swing arc rod 8 rotates with the cam 2 Swing up and down around the driving shaft 3, so that the rotating device forms a rotating track that does not interfere with each other between the door body and the horizontal electrical appliance base during the rotation opening and closing.

That is, when the door is opened or closed, the cam 2 rotates upward or downward along with the door, driving the swing end of the swing arc rod 8 to swing upward or downward around the driving shaft 3 . In this way, with the structural cooperation of the swing arc-shaped rod 8, the driving shaft 3, and the connecting shaft 4, the rotating device forms a rotation track for opening or closing the door.

At the same time, the driving shaft 3 is fixed on the top of the left and right inner sides of the base 1. The connecting shaft 4 passes through the cam 2 and its two ends are connected to the corresponding swing arc rods 8 respectively. Moreover, the shape of the swing arc-shaped rod 8 is consistent with the rotation trajectory of the cam 2 .

The rotation device of the cam 2 is used to realize that the door body does not interfere with the horizontal electrical appliance base during rotation, and the rotation stability is high, ensuring the normal use of the product.

Referring to Figures 1 to 8, to further refine, the bottom surface of the cam 2 is provided with an assembly hole 9 for fixed installation with the door body, and one side of the cam 2 is provided with a connecting ear 13 for fixed installation with the door body. , the base 1 is distributed on the left and right sides of the cam 2, and the base 1 is provided with mounting holes 7 for fixing to the horizontal electrical appliance base.

The shape of the cam 2 is an irregular cam body that does not interfere with the door body during rotation and opening. The specific shape is shown in Figure 3.

With the structural cooperation of the cam 2 and the base 1, it is easy to assemble, has few structural parts, and is small in size. It can reduce the gap between the door body and the base body and ensure that the door body is completely closed.

Referring to Figures 1 to 11, further details are provided. The cam 2 is provided with a buffer damper 10 for the door body to have a buffering function during closing. The buffer damper 10 is installed in the cam 2. The buffer damper 10 is installed in the cam 2. The fixed end of the buffer damper 10 is fixed on the cam 2, and the movable end of the buffer damper 10 is equipped with a buffer connecting rod 13 for sliding on the cam 2. The cam 2 is provided with a limit guide for the directional sliding of the buffer connecting rod 13. slot 11. The shape of the limiting guide groove 11 is consistent with the rotation trajectory of the cam 2 .

Under the action of the buffer damper 10, the door opening and closing mechanism can have a buffering effect during closing, reducing the generation of noise, and protecting the door opening and closing mechanism to ensure the use effect of the product.

In another solution, as shown in Figures 12 to 18, the door opening and closing mechanism of a horizontal electrical appliance of the present invention includes a base 1 installed on the base of the horizontal electrical appliance and a cam 2 installed on the door body. The base 1 is connected to the left and right sides of the cam 2, and the cam 2 is provided with a rotation device. The rotating device includes a driving shaft 3, a connecting shaft 4, a long limiting groove 5 and a limiting arc groove 6. The long limiting groove 5 and the limiting arc groove 6 are respectively provided on the cam 2. The driving The shaft 3 and the connecting shaft 4 are respectively installed between the left and right inner sides of the base 1 and are adapted to be connected with the long limiting groove 5 and the arc limiting groove 6 . The long limiting groove 5 moves laterally relative to the driving shaft 3 as the cam 2 rotates, and then moves longitudinally relative to the driving shaft 3 after rotating with the driving shaft 3 as a fixed point. During this period, the limiting arc groove 6 rotates with the cam 2 When the door body moves up and down relative to the connecting shaft 4, the rotating device forms a rotating track that does not interfere with each other during the opening and closing of the door body and the horizontal electrical appliance base body.

That is, when the door body is opened, the cam 2 rotates upward with the door body, driving the long limiting slot 5 to move laterally relative to the driving shaft 3. When the driving shaft 3 is at the right end of the long limiting slot 5, the long limiting slot 5 5 As the door body rotates and rotates upward at an angle of 90 degrees with the driving shaft 3 as the fixed point, the cam 2 rotates from horizontal to vertical, and the long limiting slot 5 is in the longitudinal direction. Since the door body is in a fully open state, under the action of gravity, the cam 2 drives the long limiting slot 5 to move downward relative to the driving wheel. During this period, the limiting arc groove 6 moves from bottom to top relative to the connecting shaft 4 as the cam 2 rotates. In this way, with the structural cooperation of the driving shaft 3, the connecting shaft 4, the limiting long groove 5 and the limiting arc groove 6, the rotating device forms a rotation track for opening the door.

When the door body is closed, when the cam 2 rotates downward with the door body, it drives the long limit slot 5 to move upward relative to the driving shaft 3 and rotates downward at an angle of 90 degrees with the driving shaft 3 as the fixed point. At this time, the cam 2 moves from the vertical position The position is transferred to the horizontal position, and the long limiting slot 5 is in the transverse direction. During this period, the limiting arc groove 6 moves from top to bottom relative to the connecting shaft 4 as the cam 2 rotates. In this way, with the structural cooperation of the driving shaft 3, the connecting shaft 4, the limiting long groove 5 and the limiting arc groove 6, the rotating device forms a rotation trajectory of the relevant door.

The rotation device of the cam 2 is used to realize that the door body does not interfere with the horizontal electrical appliance base during rotation, and the rotation stability is high, ensuring the normal use of the product.

Referring to Figures 12 to 18, in further detail, the driving shaft 3 and the connecting shaft 4 are fixed side by side on the inside between the base 1 and the base 1, and the long limiting groove 5 and the limiting arc groove 6 They are respectively arranged on the cams 2 corresponding to the driving shaft 3 and the connecting shaft 4.

Moreover, the cam 2 is embedded in the door body, the base 1 is distributed on the left and right sides of the cam 2, and the base 1 is provided with mounting holes 7 for fixing to the horizontal electrical appliance base.

Among them, the shape of the cam 2 is set as an irregular cam body that does not interfere with the door body during the rotation opening and closing period. The specific shape of the irregular cam body is shown in Figure 3.

With the structural cooperation of the cam 2 and the base 1, it is easy to assemble, has few structural parts, and is small in size. It can reduce the gap between the door body and the base body and ensure that the door body is completely closed.

The above-mentioned specific embodiments are only specific implementations of the present invention that are more effective. Any structures that are the same or equivalent to the door opening and closing mechanism of the horizontal electrical appliance of the present invention are within the scope of protection of the present invention.

Claims (10)

1. A door opening and closing mechanism of a horizontal electric appliance is characterized in that: the door opening and closing mechanism comprises a base (1) arranged on a horizontal electric appliance base body and a cam (2) arranged on a door body, wherein the base (1) is connected to the left side and the right side of the cam (2), the cam (2) is provided with a rotating device, the rotating device comprises a driving shaft (3), a connecting shaft (4) and a swinging arc rod (8), the driving shaft (3) is fixed to the left side and the right side of the base (1), the swinging arc rod (8) is distributed on the left side and the right side of the cam (2) and the swinging ends of the swinging arc rod are respectively connected with the connecting shaft (4), the swinging ends of the swinging arc rod (8) swing up and down along with the rotation of the cam (2), and the rotating device is provided with a rotating track for enabling the door body and the horizontal electric appliance base body to be mutually noninterfered during the rotating and opening and closing process.

2. The door opening and closing mechanism of a horizontal electric appliance according to claim 1, wherein: the driving shaft (3) is fixed at the top of the left inner side and the right inner side of the base (1), and the connecting shaft (4) penetrates through the cam (2) and two ends of the connecting shaft are respectively connected with the corresponding swing arc-shaped rods (8).

3. The door opening and closing mechanism of a horizontal electric appliance according to claim 1, wherein: the bottom surface of cam (2) is equipped with and AND gate body fixed mounting is used mounting hole (9), and one side of cam (2) is equipped with and AND gate body fixed mounting is used engaging lug (13), base (1) distribute in the left and right sides of cam (2), and base (1) are equipped with mounting hole (7) that fix at horizontal electrical apparatus base member usefulness.

4. The door opening and closing mechanism of a horizontal electric appliance according to claim 1, wherein: the cam (2) is an irregular cam body which is not interfered with the door body during the rotation opening and closing process; the shape of the swinging arc-shaped rod (8) is in accordance with the rotation track of the cam (2).

5. The door opening and closing mechanism for a horizontal electric appliance according to any one of claims 1 to 4, wherein: the cam (2) is provided with a buffer damper (10) with a buffer function for the door body during closing, the buffer damper (10) is installed in the cam (2), the fixed end of the buffer damper (10) is fixed on the cam (2), the movable end of the buffer damper (10) is provided with a buffer connecting rod (12) sliding on the cam (2), and the cam (2) is provided with a limit guide groove (11) for the buffer connecting rod (12) to directionally slide.

6. The door opening and closing mechanism for a horizontal electric appliance according to claim 5, wherein: the shape of the limit guide groove (11) is in accordance with the rotation track of the cam (2).

7. A door opening and closing mechanism of a horizontal electric appliance is characterized in that: the door opening and closing mechanism comprises a base (1) arranged on a horizontal electric appliance base body and a cam (2) arranged on a door body, wherein the base (1) is connected to the left side and the right side of the cam (2), the cam (2) is provided with a rotating device, the rotating device comprises a driving shaft (3), a connecting shaft (4), a limiting long groove (5) and a limiting circular arc groove (6), the limiting long groove (5) and the limiting circular arc groove (6) are respectively arranged on the cam (2), the driving shaft (3) and the connecting shaft (4) are respectively arranged between the left side and the right side of the base (1) and are connected with the limiting long groove (5) and the limiting circular arc groove (6) in an adapting mode, the limiting long groove (5) moves transversely along with the cam (2) and moves longitudinally relative to the driving shaft (3) after rotating with the driving shaft (3) as a fixed point, and the limiting circular arc groove (6) moves up and down along with the rotation of the cam (2), so that the rotating device forms a rotating track which does not interfere with the horizontal electric appliance base body during the rotation opening and closing.

8. The door opening and closing mechanism for a horizontal appliance according to claim 7, wherein: the driving shaft (3) and the connecting shaft (4) are fixed on the inner side between the base (1) and the base (1) side by side, and the limiting long groove (5) and the limiting circular arc groove (6) are respectively arranged on the cams (2) corresponding to the driving shaft (3) and the connecting shaft (4).

9. The door opening and closing mechanism for a horizontal appliance according to claim 7, wherein: the cam (2) is embedded on the door body, the bases (1) are distributed on the left side and the right side of the cam (2), and the bases (1) are provided with mounting holes (7) for fixing the horizontal electric appliance base body.

10. The door opening and closing mechanism for a horizontal appliance according to claim 7, wherein: the cam (2) is shaped as an irregular cam body which is not interfered with the door body during the rotation opening and closing process.