A hinge-free downward-folding support device

Abstract

This utility model relates to the field of hinge technology, specifically disclosing a hinge-free tilting support device. It features a linkage mechanism and a hinge mechanism between the mounting box and the connecting seat, and a damping mechanism within the mounting box that engages with the linkage mechanism. When the cabinet door opens or closes, the linkage mechanism drives the damping mechanism to generate a buffering force, assisting the cabinet door to open or close slowly and ensuring stability during opening and closing. The hinge mechanism ensures the tilting stability between the mounting box and the connecting seat. By integrating the linkage mechanism and the hinge mechanism between the mounting box and the connecting seat, no additional connecting hinge is needed when installing the cabinet door and cabinet body, simplifying the production process.

Description

Technical Field

[0001] This utility model relates to the field of hinge technology, and in particular to a hinge-free downward-folding support device. Background Technology

[0002] Cabinets, cabinets, and tables are essential furniture items for every household. Currently, many of these furniture items use a lift-up or lift-down door structure to open and close the cabinet doors. There are support devices between the cabinet doors and the cabinet body that follow the rotation of the cabinet doors. In order to ensure the rotational movement between the cabinet doors and the cabinet body, in addition to the rotational support devices, hinges are also required between the cabinet doors and the cabinet body. This adds an extra installation step when installing the cabinet doors and the cabinet body, making the production process more complicated.

[0003] The technical problem to be solved by this application is: to design a hinge-free downward flip support device that can achieve stable flipping between the cabinet door and the cabinet body without the need for a hinge between the cabinet door and the cabinet body. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a hinge-free flip-down support device that can achieve stable flipping between the cabinet door and the cabinet body without the need for a hinge between the cabinet door and the cabinet body.

[0005] The technical solution adopted by this utility model is as follows: a hinge-free downward-folding support device, including an installation box for installation with a cabinet body and a connecting seat for installation with a cabinet door. A linkage mechanism and a hinge mechanism are provided between the installation box and the connecting seat. A damping mechanism that is in transmission cooperation with the linkage mechanism is provided inside the installation box. A three-dimensional adjustment mechanism is also provided between the installation box and the connecting seat. The damping mechanism includes an upper damping block connected to one end of the linkage mechanism, a damper connected to the installation box, and a lower damping block that slides in cooperation with the installation box.

[0006] In some embodiments, the linkage mechanism includes a first link rotatably connected to the connecting seat, a second link rotatably connected to the first link, and a third link rotatably connected to the second link. One end of the third link is provided with a pull rod rotatably connected thereto, and one end of the pull rod is connected to the upper damping block.

[0007] In some embodiments, there are two dampers, and the mounting box is provided with a sliding engagement block, which is provided with a transmission engagement block. The block can limit the position of one of the dampers, and the upper damping block is provided with two upper damping columns corresponding to the two dampers.

[0008] In some embodiments, the three-dimensional adjustment mechanism includes an adjustment body disposed in a mounting box, a spring assembly disposed inside the adjustment body, a cam disposed at one end of the second connecting rod, and a spring piece disposed at the upper end of the adjustment body, with the cam abutting against the spring piece on the adjustment body.

[0009] In some embodiments, the tie rod has a strip-shaped hole, the mounting box has a connecting post, the mounting box has a damper limiting seat, two dampers are installed in the damper limiting seat, the connecting post is connected to the damper limiting seat, and there is a limiting sliding fit between the connecting post and the strip-shaped hole.

[0010] In some embodiments, a limiting block is also provided inside the mounting box, and a lower damping block is provided between the limiting block and the damper limiting seat and slides in cooperation with the mounting box. The bottom of the lower damping block is provided with an inclined surface. When the cabinet door is closed, one end of the first connecting rod abuts against the inclined surface of the lower damping block. The lower damping block is provided with a lower damping column corresponding to one of the dampers.

[0011] In some embodiments, the upper end of the spring assembly is connected to the spring sheet, and the adjusting body is provided with a longitudinal adjusting screw for vertical adjustment and a lateral adjusting screw for horizontal adjustment. The adjusting body is provided with a limiting square hole, and a square slider is provided in the limiting square hole for movable cooperation. Square push blocks are provided on both sides of the square slider. Side plates are provided on both sides of the adjusting body for connection. The side plates are provided with square oblique holes, and the square push blocks and square oblique blocks are in a limiting sliding cooperation.

[0012] In some embodiments, the hinge mechanism includes an inner rocker arm and an outer rocker arm, each with one end connected to a side plate, and the other end of the inner rocker arm and the outer rocker arm being rotatably connected to a connecting seat.

[0013] In some embodiments, the connecting seat is L-shaped, and the connecting seat is respectively provided with a hinge cup seat and a mounting seat fixedly installed therewith. The inner rocker arm and the outer rocker arm are rotatably connected to the hinge cup seat. One end of the first connecting rod is hinged to the mounting seat. The three-dimensional adjustment mechanism also includes an eccentric screw that cooperates with the hinge cup seat for limiting.

[0014] This utility model has the following technical effects: By providing a linkage mechanism and a hinge mechanism between the mounting box and the connecting seat, and by providing a damping mechanism that drives the linkage mechanism in the mounting box, when the cabinet door is opened or closed, the linkage mechanism can drive the damping mechanism to generate a buffering force, thereby assisting the cabinet door to open or close slowly and ensuring the stability of the cabinet door when opening and closing. The hinge mechanism can ensure the flipping stability between the mounting box and the connecting seat. By integrating the linkage mechanism and the hinge mechanism between the mounting box and the connecting seat, it is not necessary to set up an additional connecting hinge when installing the cabinet door and the cabinet body, which simplifies the production process. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the hinge-free downward-folding support device in Embodiment 1 of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the hinge-free downward-folding support device in Embodiment 1 of this utility model;

[0017] Figure 3 This is a schematic diagram of the cabinet door opening when the hingeless flip-down support device in Embodiment 1 of this utility model is flipped down;

[0018] Figure 4 This is a schematic diagram of the cabinet door of the hingeless downward-folding support device in Embodiment 1 of this utility model when the door is folded up and closed.

[0019] Figure 5 This is a schematic diagram of the cabinet door of the hingeless flip-down support device in Embodiment 1 of this utility model when the door is completely closed;

[0020] Figure 6 This is a schematic diagram of the linkage mechanism of the hinge-free downward-folding support device in Embodiment 1 of this utility model;

[0021] Figure 7 This is a schematic diagram of the structure of the hingeless flip-down support device in Embodiment 1 of this utility model when the stop block restricts the damper in the damper;

[0022] Figure 8 This is a schematic diagram of the lower damping block structure of the hinge-free downward-folding support device in Embodiment 1 of this utility model;

[0023] Figure 9 This is a schematic diagram of the hinge mechanism structure of the hinge-free flip-down support device in Embodiment 1 of this utility model;

[0024] Figure 10 This is an exploded view of the three-dimensional adjustment mechanism and hinge mechanism of the hinge-free flip-down support device in Embodiment 1 of this utility model;

[0025] Figure 11 This is a schematic diagram of the hinge-free downward-folding support device in Embodiment 2 of this utility model.

[0026] The labels and names in the diagram correspond as follows: 1. Mounting box; 2. Connecting seat; 3. Linkage mechanism; 4. Hinge mechanism; 5. Damping mechanism; 6. Three-dimensional adjustment mechanism; 50. Upper damping block; 51. Damper limit seat; 52. Lower damping block; 30. First link; 31. Second link; 32. Third link; 33. Pull rod; 510. Damper; 10. Toggle block; 11. Stop block; 500. Upper damping column; 60. Adjustment body; 61. Spring assembly 310, Cam; 330, Strip Hole; 12, Connecting Post; 13, Limiting Block; 520, Inclined Surface; 521, Lower Damping Post; 600, Spring; 601, Longitudinal Adjusting Screw; 602, Lateral Adjusting Screw; 603, Limiting Square Hole; 604, Square Slider; 605, Square Push Block; 606, Side Plate; 607, Square Inclined Hole; 40, Inner Rocker Arm; 41, Outer Rocker Arm; 20, Hinge Cup Seat; 21, Mounting Seat; 62, Eccentric Screw. Detailed Implementation

[0027] 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.

[0028] Example 1: Please refer to Figure 1-10This utility model provides a technical solution: a hinge-free downward-folding support device, including a mounting box 1 for installation with a cabinet body and a connecting seat 2 for installation with a cabinet door. A linkage mechanism 3 and a hinge mechanism 4 are provided between the mounting box 1 and the connecting seat 2. A damping mechanism 5 is also provided in the mounting box 1, which is in transmission cooperation with the linkage mechanism 3. The damping mechanism 5 includes an upper damping block 50 connected to one end of the linkage mechanism 3, a damper limiting seat 510 connected to the mounting box 1, and a lower damping block 52 that is slidably cooperated with the mounting box 1. The linkage mechanism 3 includes a first link 30 rotatably connected to the connecting seat 2, a second link 31 rotatably connected to the first link 30, and a link 32 rotatably connected to the second link 31. The third link 32 has a pull rod 33 rotatably connected to one end, and the pull rod 33 is connected to the upper damping block 50. Two dampers 510 are provided in the damper limiting seat 51. The mounting box 1 has a sliding engagement block 10, and the block 10 has a transmission engagement block 11. The block 11 can limit the movement of one of the dampers 510. The upper damping block 50 has two upper damping columns 500 corresponding to the two dampers 510. When the cabinet door is opened downwards, the cabinet door drives the first link 30, the second link 31, and the third link 32 to transmit power to each other. Since the cabinet door opens downwards, it causes the third link 32 to generate a downward pulling force. Pulling lever 33 downwards causes the upper damping block 50 to move downwards, bringing the two upper damping posts 500 into contact with the two dampers 510. As the cabinet door continues to fold downwards, the damping force between the upper damping posts 500 and the dampers 510 increases. When facing a lighter cabinet door, to ensure the door can fold downwards smoothly under the damping force, lever 10 can be moved to drive stop 11, causing stop 11 to engage above one of the dampers 510. This prevents damping between the damper 510 and the upper damping post 500, effectively reducing the number of dampers 510. The damping effect reduces the overall damping force between the upper damping block 50 and the two dampers 510, allowing lighter cabinet doors to open stably by controlling the damping force. However, for heavier cabinet doors, the weight of the door itself can cause a falling injury if there is no damping buffer. Therefore, it is not necessary to push the lever 10 to stop the block 11 from pressing against one of the dampers 510. This is equivalent to allowing damping between the two upper damping columns 500 and the two dampers 510, thereby increasing the damping effect and ensuring that even heavier cabinet doors can open stably under damping.

[0029] The tie rod 33 is provided with a strip hole 330, and the mounting box 1 is provided with a connecting post 12. The connecting post 12 is connected to the damper limiting seat 51. The connecting post 12 and the strip hole 330 are in a limiting sliding fit. By providing a limiting sliding fit between the connecting post 12 and the strip hole 330, the tie rod 33 can be slidably guided, and the damper limiting seat 51 can be fixedly installed in the mounting box 1.

[0030] A limiting block 13 is also provided inside the mounting box 1. A lower damping block 52 is located between the limiting block 13 and the damper limiting seat 51 and slides in cooperation with the mounting box 1. The bottom of the lower damping block 52 is provided with an inclined surface 520. When the cabinet door is closed, one end of the first connecting rod 30 abuts against the inclined surface 520 of the lower damping block 52. The lower damping block 52 is provided with a lower damping column 521 corresponding to one of the dampers 510. A three-dimensional adjustment mechanism 6 is also provided between the mounting box 1 and the connecting seat 2. The three-dimensional adjustment mechanism 6 includes an adjustment body 60 located inside the mounting box 1. A spring assembly 61 is provided inside the adjustment body 60. A cam 310 is provided at one end of the second connecting rod 31. The upper end of the 0 is provided with a spring piece 600. The cam 310 abuts against the spring piece 600 at the upper end of the adjusting body 60. The upper end of the spring assembly 61 is connected to the spring piece 600. When the cabinet door is opened, the cam 310 exerts downward pressure on the spring piece 600, and the spring assembly 61 is compressed. When the cabinet door is closed, the cabinet door will also drive the first link 30, the second link 31 and the third link 32 to drive each other. At this time, because the cam 310 on the second link 31 abuts against the spring piece 600 on the adjusting body 60, and as the cabinet door closes, the cam 310 rotates along the surface of the spring piece 600, and the compressed spring assembly 61 returns to its original position. A pair of spring plates 600 exert an upward force, which in turn exerts an upward force on cam 310. As the cabinet door closes, the angle between the first link 30 and the second link 31 begins to decrease. When the first link 30 slowly retracts into the mounting box 1, the hinged end of the first link 30 and the second link 31 begins to contact the inclined surface 520 of the lower damping block 52. Because the second link 31 is subjected to an upward force from the spring assembly 61, the second link 31 also drives the first link 30 to generate an upward force, thereby causing the hinged end of the first link 30 and the second link 31 to push the lower damping block along the inclined surface 520. When block 52 moves upward, the damper 510, which corresponds to the lower damping column 521 in the damper limiting seat 51, passes through the entire damper limiting seat 51. Therefore, when the cabinet door is opened downward, the upper damping block 50 will compress the damper 510, causing the bottom end of the damper 510 to extend from the bottom of the damper limiting seat 51. When the lower damping block 52 is pushed upward, the lower damping column 521 of the lower damping block 52 contacts the end of the damper 510 at the bottom of the damper limiting seat 51, thereby generating a damping buffer force between the damper 510 and the lower damping block 52, which slows down the closing speed of the cabinet door and ensures that the cabinet door closes stably.

[0031] The three-dimensional adjustment mechanism 6 includes a longitudinal adjustment screw 601 and a transverse adjustment screw 602 that are respectively limited and engaged with the adjustment body 60. The longitudinal adjustment screw 601 can drive the adjustment body 60 to move vertically in the mounting box 1, and the transverse adjustment screw 602 can drive the adjustment body 60 to move horizontally in the mounting box 1. The adjustment body 60 is provided with a limiting square hole 603, and a square slider 604 is provided in the limiting square hole 603 to move with it. The square slider 604 has square pushers on both sides. Block 605, the two sides of the adjusting body 60 are provided with side plates 606 connected thereto, wherein the side plates 606 are provided with square oblique holes 607, and the square push block 605 and the square oblique block are in a limiting sliding fit. The longitudinal adjusting screw 601 is threadedly connected to the square slider 604 provided in the adjusting body 600. When the longitudinal adjusting screw 601 is rotated, the longitudinal adjusting screw 601 can drive the square slider 604 to slide in the limiting square hole 603, thereby driving the square push blocks 605 located on both sides of the square slider 604 to slide in the side plate 606. The square oblique hole 607 in 06 slides. Since the square oblique hole 607 is set on the side plate 606, which is fixedly installed on both sides of the adjusting body 60, when the square push block 605 slides in the square oblique hole 607 of the side plate 606 and exerts a longitudinal force on the side plate 606, it can push the side plate 606 to drive the adjusting body 60 to move up and down in the mounting box 1, thereby achieving the effect of vertical adjustment of the adjusting body 60. The horizontal adjusting screw 602 is directly threaded with the adjusting body 60, and there is a groove on the head of the horizontal adjusting screw 602. This groove is limited to the box body of the mounting box 1, which means that the horizontal adjusting screw 602 can be rotated, but the position of the horizontal adjusting screw 602 relative to the mounting box 1 cannot be changed. Therefore, when the horizontal adjusting screw 602 is rotated, due to the transmission between the adjusting body 60 and the horizontal adjusting screw 602, the adjusting body 60 can be pushed to move along the length direction of the horizontal adjusting screw 602, that is, the adjusting body 60 can be pushed to make horizontal adjustment.

[0032] The hinge mechanism 4 includes an inner rocker arm 40 and an outer rocker arm 41, one end of which is connected to the side plate 606. The other end of the inner rocker arm 40 and the outer rocker arm 41 is rotatably connected to the connecting seat 2. The connecting seat 2 is L-shaped. By setting the connecting seat 2 to L-shape, the installation stability between the connecting seat 2 and the cabinet door can be enhanced. When the cabinet door is a metal cabinet door, the connecting seat 2 is integrally set. The connecting seat 2 is provided with a hinge cup seat 20 and a mounting seat 21 fixedly installed therewith. The hinge cup seat 20 is also L-shaped. The inner rocker arm 40 and the outer rocker arm 41 are rotatably connected to the hinge cup seat 20. One end of the first connecting rod 30 is hinged to the mounting seat 21. The three-dimensional adjustment mechanism 6 also includes an eccentric screw 62 that is limited to the hinge cup seat 20. By adjusting the eccentric screw 62, the entire connecting seat 2 can be moved left and right, thereby achieving the effect of adjusting the left and right lateral translation of the connecting seat 2.

[0033] Example 2: Please refer to Figure 11 This utility model provides another technical solution: a hinge-free downward support device. The difference between this embodiment and the above embodiment 2 is that when this embodiment is applied to wooden cabinet doors, the connecting seat 2 can be directly omitted compared to embodiment 1. The hinge cup seat 20 and the mounting seat 21 can be directly used to install and connect with the wooden cabinet door, and the same technical effect as the above embodiment 1 can be achieved.

[0034] The working principle of this utility model is as follows: A linkage mechanism 3 and a hinge mechanism 4 are provided between the mounting box 1 and the connecting seat 2. A damping mechanism 5 that is in transmission cooperation with the linkage mechanism 3 is also provided in the mounting box 1. When the cabinet door is opened or closed, the linkage mechanism 3 can drive the damping mechanism 5 to generate a buffering force, thereby assisting the cabinet door to open or close slowly and ensuring the stability of the cabinet door when opening and closing. The hinge mechanism 4 can ensure the flipping stability between the mounting box 1 and the connecting seat 2. By integrating the linkage mechanism 3 and the hinge mechanism 4 between the mounting box 1 and the connecting seat 2, it is not necessary to set an additional connecting hinge when installing the cabinet door and the cabinet body, which can simplify the production process.

[0035] 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 hingeless downfold support apparatus, characterized by, It includes a mounting box for installation with the cabinet body and a connecting seat for installation with the cabinet door. A linkage mechanism and a hinge mechanism are provided between the mounting box and the connecting seat. A damping mechanism that is in transmission cooperation with the linkage mechanism is provided inside the mounting box. A three-dimensional adjustment mechanism is also provided between the mounting box and the connecting seat. The damping mechanism includes an upper damping block connected to one end of the linkage mechanism, a damper connected to the mounting box, and a lower damping block that is in sliding cooperation with the inside of the mounting box.

2. The hinged-down support device according to claim 1, characterized in that The linkage mechanism includes a first link rotatably connected to the connecting seat, a second link rotatably connected to the first link, and a third link rotatably connected to the second link. One end of the third link is provided with a pull rod rotatably connected thereto, and one end of the pull rod is connected to the upper damping block.

3. The hinged-down support device according to claim 1, wherein The damper is provided in two parts, the mounting box is provided with a sliding block that is slidably engaged with it, the sliding block is provided with a stop block that is pulsatingly engaged with it, the stop block can limit the position of one of the dampers, and the upper damping block is provided with two upper damping columns corresponding to the two dampers.

4. The hinged-down support device according to claim 2, wherein The three-dimensional adjustment mechanism includes an adjustment body housed in a mounting box. The adjustment body contains a spring assembly. One end of the second connecting rod is provided with a cam. The upper end of the adjustment body is provided with a spring piece. The cam and the spring piece on the adjustment body abut against each other.

5. The hinged-down support device according to claim 2, wherein The tie rod has a strip-shaped hole, the mounting box has a connecting post, the mounting box has a damper limiting seat, the two dampers are installed in the damper limiting seat, the connecting post is connected to the damper limiting seat, and the connecting post and the strip-shaped hole have a limiting sliding fit.

6. The hinged-down support device according to claim 5, characterized in that The mounting box is also provided with a limiting block. The lower damping block is located between the limiting block and the damper limiting seat and slides in cooperation with the mounting box. The bottom of the lower damping block is provided with an inclined surface. When the cabinet door is closed, one end of the first connecting rod abuts against the inclined surface of the lower damping block. The lower damping block is provided with a lower damping column corresponding to one of the dampers.

7. The hinged-down support device according to claim 4, wherein The upper end of the spring assembly is connected to the spring piece. The adjusting body is provided with a longitudinal adjusting screw for vertical adjustment and a lateral adjusting screw for horizontal adjustment. The adjusting body is provided with a limiting square hole. A square slider is provided in the limiting square hole and moves in cooperation with it. Square push blocks are provided on both sides of the square slider. Side plates are provided on both sides of the adjusting body and connected to it. The side plates are provided with square oblique holes. The square push blocks and square oblique blocks are in a limiting sliding cooperation.

8. The hinged-down support device according to claim 7, characterized in that The hinge mechanism includes an inner rocker arm and an outer rocker arm, one end of which is connected to the side plate, and the other end of the inner rocker arm and the outer rocker arm are rotatably connected to the connecting seat.

9. The hinged-down support device according to claim 8, characterized in that The connecting seat is L-shaped, and the connecting seat is respectively provided with a hinge cup seat and a mounting seat fixedly installed therewith. The inner rocker arm and the outer rocker arm are rotatably connected to the hinge cup seat. One end of the first connecting rod is hinged to the mounting seat. The three-dimensional adjustment mechanism also includes an eccentric screw that cooperates with the hinge cup seat for limiting.

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