Upturning supporting device

Abstract

The utility model relates to the technical field of upturning door storage cabinets, and particularly discloses an upturning supporting device which is characterized in that a transmission lug rotationally connected with a shell is arranged in the shell, the transmission lug is abutted against one end of a damper, and a connecting rod mechanism is abutted against the transmission lug; at the moment, due to the fact that the connecting rod mechanism abuts against the transmission protruding block, the transmission protruding block can be driven to rotate when the connecting rod mechanism rotates, the transmission protruding block drives the damper to be compressed, then the damper provides buffering force to the connecting rod mechanism, the downward turning and closing speed of the cabinet door is reduced, and the situation that a user is injured due to too high speed is avoided.

Description

Technical Field

[0001] This utility model relates to the field of upward-opening door storage cabinet technology, and in particular to an upward-opening support device. Background Technology

[0002] Boxes, cabinets, tables, and other furniture are essential items in every household. Currently, many of these furniture pieces use a lift-up door structure to open and close the cabinet doors. In order to allow the cabinet doors to hover when opened, a lift-up support device that connects the cabinet door to the cabinet body is usually installed.

[0003] However, when the cabinet door is closed after being opened by the upward-opening support device, the cabinet door may fall down too quickly due to its own weight, which could easily injure the user. Therefore, there is an urgent need to design an upward-opening support device that can slow down the downward speed of the cabinet door.

[0004] The technical problem to be solved by this application is: to design an upward support device that can slow down the downward closing speed of the cabinet door. Utility Model Content

[0005] The technical solution adopted by this utility model is as follows: an upward-opening support device, including a housing, a linkage mechanism with one end connected to a cabinet door is provided inside the housing, the linkage mechanism includes a first link, a second link and a third link, the first link and the second link are hinged to each other and the second link and the third link are hinged to each other to support the upward opening of the cabinet door, the housing is provided with a damping mechanism to slow down the downward opening speed of the cabinet door, the damping mechanism includes a damper provided inside the housing and a damping rod drivenly connected to the damper, the damping mechanism also includes a transmission protrusion rotatably connected to the housing, the transmission protrusion abuts against one end of the damper, the linkage mechanism abuts against the transmission protrusion to slow down the closing speed of the cabinet door when it is closed.

[0006] In some embodiments, the housing is provided with a connecting shaft, and one end of the transmission protrusion is rotatably connected to the connecting shaft.

[0007] In some embodiments, the other end of the transmission protrusion is provided with a protrusion that abuts against one end of the damper.

[0008] In some embodiments, the transmission protrusion is provided with a first abutting surface, which abuts against one end of the linkage mechanism.

[0009] In some embodiments, one end of the second connecting rod is provided with an abutting protrusion and a second abutting surface. The abutting protrusion engages with the first abutting surface during transmission when the cabinet door is opened, and the second abutting surface engages with the first abutting surface when the cabinet door is closed.

[0010] In some embodiments, the other end of the first link is provided with a mounting base rotatably connected thereto for connection with the cabinet door.

[0011] In some embodiments, the other end of the third link is provided with a spring support assembly connected thereto. The spring support assembly includes a sliding seat connected to the third link, a support spring connected to the sliding seat, and a bushing connected to the support spring.

[0012] In some implementations, the damper is angled downwards relative to the lateral direction of the housing.

[0013] This utility model has the following technical effects: By providing a transmission protrusion rotatably connected to the housing, and having the transmission protrusion abut against one end of the damper, and the linkage mechanism abutting against the transmission protrusion, when the cabinet door is closed by tilting down, the linkage mechanism drives the transmission protrusion to rotate because it abuts against the transmission protrusion. This causes the transmission protrusion to drive the damper to compress the damping rod, and the damper provides a buffering force to the linkage mechanism, thereby slowing down the speed at which the cabinet door closes down and preventing injury to the user due to excessive speed. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the upward-flipping support device of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the upward-flipping support device of this utility model;

[0016] Figure 3 A schematic diagram of the cabinet door opening 90° for the upward-flipping support device of this utility model;

[0017] Figure 4 This utility model provides an upward-flipping support device. Figure 3 Schematic diagram of partial structure A;

[0018] Figure 5 This is a schematic diagram of the cabinet door fully closed structure of the upward-flipping support device of this utility model;

[0019] Figure 6 This utility model provides an upward-flipping support device. Figure 5 Schematic diagram of partial B structure.

[0020] The labels and names in the diagram correspond as follows: 1. Housing; 2. Linkage mechanism; 3. Damping mechanism; 30. Damper; 31. Damping rod; 32. Transmission protrusion; 4. Connecting shaft; 320. Protrusion; 321. First abutment surface; 20. First connecting rod; 21. Second connecting rod; 22. Third connecting rod; 210. Abutment protrusion; 211. Second abutment surface; 5. Mounting seat; 6. Spring support assembly; 60. Sliding seat; 61. Support spring; 62. Bushing. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-6 This utility model provides a technical solution: an upward-opening support device, including a housing 1, a linkage mechanism 2 connected to a cabinet door at one end inside the housing 1, and a damping mechanism 3 inside the housing 1. The damping mechanism 3 is mainly used to buffer the linkage mechanism 2, thereby slowing down the downward closing speed of the cabinet door. The damping mechanism 3 includes a damper 30 disposed inside the housing 1 and a damping rod 31 pulsatorically connected to the damper 30. A baffle is provided at the end of the damping rod 31 away from the damper 30, and the baffle is fixedly installed between the baffle and the housing 1. The damping mechanism 3 also includes a transmission protrusion 32 rotatably connected to the housing 1, which abuts against the baffle. The housing 1 is provided with a connecting shaft 4. One end of the transmission protrusion 32 is rotatably connected to the connecting shaft 4, thereby realizing the rotatable connection of the transmission protrusion 32 within the housing 1. The transmission protrusion 32 abuts against one end of the damper 30. The other end of the transmission protrusion 32 is provided with a protrusion 320, which abuts against one end of the damping rod 31. The transmission protrusion 32 is provided with a first abutting surface 321, which abuts against one end of the connecting rod mechanism 2. The lever mechanism 2 includes a first connecting rod 20, a second connecting rod 21 rotatably connected to one end of the first connecting rod 20, and a third connecting rod 22 rotatably connected to the second connecting rod 21. The first connecting rod 20 and the second connecting rod 21 are hinged to each other, and the second connecting rod 21 and the third connecting rod 22 are hinged to each other to support the upward opening of the cabinet door. One end of the second connecting rod 21 is provided with an abutting protrusion 210. When the cabinet door is opened, the abutting protrusion 210 makes a transmission abutment with the first abutting surface 321, thereby realizing the abutment between the lever mechanism 2 and the transmission protrusion 32 to slow down the closing of the cabinet door when it is closed. When the cabinet door is closed, the linkage mechanism 2 rotates, and the abutment protrusion 210 on the second linkage 21 pushes the transmission protrusion 32 to rotate, thereby compressing the damper 30 with the protrusion 320 on the transmission protrusion 32, causing the damping rod 31 to retract into the damper 30. At this time, the damper 30 provides a buffering force, which is transmitted to the linkage mechanism 2 through the transmission protrusion 32, thereby slowing down the rotation speed of the linkage mechanism 2, which is equivalent to slowing down the closing speed of the cabinet door. This allows the cabinet door to close slowly, avoiding injury to the user due to excessive downward speed.

[0023] A second abutment surface 211 is provided at one end of the second link 21. When the cabinet door is fully open, the abutment protrusion 210 and the first abutment surface 321 are in a transmission abutment. When the cabinet door is closed, the second link 21 switches from abutting the first abutment surface 321 to abutting the second abutment surface 211, so that the damping mechanism 3 continuously applies a buffering force to the link mechanism 2.

[0024] In order to connect the linkage mechanism 2 with the cabinet door, the other end of the first linkage 20 is provided with a mounting seat 5 that is rotatably connected to it, wherein the mounting seat 5 is used for fixed installation with the cabinet door.

[0025] The other end of the third link 22 is provided with a spring support assembly 6 connected thereto. The spring support assembly 6 includes a sliding seat 60 connected to the third link 22, a support spring 61 connected to the sliding seat 60, and a bushing 62 connected to the support spring 61. The sliding seat 60 can slide between the housings 1. By providing the spring support assembly 6, the third link 22 can be supported when the cabinet door is closed, thereby slowing down the closing speed of the cabinet door and preventing the cabinet door from tipping over due to weightlessness and injuring the user.

[0026] The working principle of this utility model is as follows: A transmission protrusion 32 is rotatably connected to the housing 1, and one end of the transmission protrusion 32 abuts against the damper 30. The linkage mechanism 2 also abuts against the transmission protrusion 32. When the cabinet door is opened to a 90° angle with the cabinet body, the abutting protrusion 210 on the second linkage 21 pushes the transmission protrusion 32 against it, thereby pushing the protrusion 320 of the transmission protrusion 32 to compress the damper 30. This causes the damper 30 to provide a reverse buffering force to the linkage mechanism 2. At this time, due to the support between the third link 22 and the spring support assembly 6, the cabinet door can be flipped up to a 90° angle with the cabinet body and suspended. When the cabinet door is flipped down to close, the link mechanism 2 is in contact with the transmission protrusion 32. Therefore, when the link mechanism 2 rotates, it will push the transmission protrusion 32 to rotate, thereby driving the damper 30 to compress the damping rod 31. In turn, the damper 30 provides a buffering force to the link mechanism 2, thereby slowing down the speed at which the cabinet door flips down to close and avoiding injury caused by excessive speed.

[0027] Finally, it should be noted that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flip-up support device, comprising a housing, wherein a linkage mechanism with one end connected to a cabinet door is provided within the housing, characterized in that, The linkage mechanism includes a first link, a second link, and a third link. The first link and the second link are hinged to each other, and the second link and the third link are hinged to each other to support the upward opening of the cabinet door. The housing is provided with a damping mechanism to slow down the downward opening speed of the cabinet door. The damping mechanism includes a damper disposed inside the housing and a damping rod that is pultrusively connected to the damper. The damping mechanism also includes a transmission protrusion that is rotatably connected to the housing. The transmission protrusion abuts against one end of the damper. The abutment between the linkage mechanism and the transmission protrusion is used to slow down the closing speed of the cabinet door when it is closed.

2. The upward-flipping support device according to claim 1, characterized in that, The housing is provided with a connecting shaft, and one end of the transmission protrusion is rotatably connected to the connecting shaft.

3. The upward-flipping support device according to claim 1, characterized in that, The other end of the transmission protrusion is provided with a protrusion, which abuts against one end of the damper.

4. The upward-flipping support device according to claim 1, characterized in that, The transmission protrusion is provided with a first abutting surface, which is in transmission contact with one end of the linkage mechanism.

5. The upward-flipping support device according to claim 4, characterized in that, One end of the second connecting rod is provided with an abutting protrusion and a second abutting surface. The abutting protrusion abuts against the first abutting surface when the cabinet door is opened, and the second abutting surface abuts against the first abutting surface when the cabinet door is closed.

6. The upward-flipping support device according to claim 1, characterized in that, The other end of the first connecting rod is provided with a mounting base for rotatably connecting with the cabinet door.

7. The upward-flipping support device according to claim 1, characterized in that, The other end of the third link is provided with a spring support assembly connected thereto. The spring support assembly includes a sliding seat connected to the third link, a support spring connected to the sliding seat, and a bushing connected to the support spring.

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