Double-layer linkage lifting basket of wall cupboard

Abstract

The invention relates to the field of pull baskets, in particular to a wall cupboard double-layer linkage lifting basket which comprises a cupboard body, a first basket and a second basket, mechanical boxes are symmetrically fixed to the top end of the cupboard body, and the interiors of the mechanical boxes are rotationally connected with rotating blocks through bearings; one end of the rotating block penetrates through the mechanical box to be fixedly connected with a first connecting rod, the side wall of the mechanical box is rotationally connected with a second connecting rod through a bearing, and the end of the first connecting rod and the end of the second connecting rod are hinged to the side wall of the first basket. And meanwhile, the anti-false-triggering function is achieved, and the problems that the pull basket does not descend or the descending speed is too high, and the pull basket is strenuous to push back after descending and the like due to the fact that gear adjustment errors are not consistent with actual load bearing or gear adjustment is triggered by mistake are solved.

Description

Technical Field

[0001] The invention relates to the field of pull-out baskets, in particular to a double-layer linkage lifting basket for a wall cabinet. Background Art

[0002] In the kitchen, due to the high height of the wall cabinet, it is inconvenient to take or place the items stored in the wall cabinet. Generally, a double-layer linkage lifting basket is installed in the wall cabinet to facilitate the taking or placing of items in the wall cabinet. However, the gear adjustment method of the existing double-layer linkage lifting basket of the wall cabinet is mostly pull-out and press-down, which is easy to cause gear recognition errors. Usually, a chain or connecting rod structure is used for gear adjustment. However, these two structures have complex processing technology, difficult to make, and no error trigger protection. Users can easily cause damage to the overall or local transmission system by mistake without seeing the gear clearly. Most of the existing double-layer linkage lifting baskets of wall cabinets are multi-link linkage structures, which have large rotation resistance, affect the smoothness of the up and down movement of the machine, are seriously worn out after long-term use, and are prone to noise. At the same time, the connecting rods on both sides are not synchronized, the machine is easy to shake when it moves up and down, and the movement radius of the whole machine is large, resulting in a decrease in the user experience. Therefore, in order to enrich the gear adjustment method, improve the recognition of the gear adjustment state, and at the same time, in order to ensure the smooth and stable operation of the pull basket, it is particularly important to design a new gear adjustment method and linkage structure.

[0003] Therefore, we propose a double-layer linkage lifting basket for wall cabinets to solve the above problems. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a double-layer linkage lifting basket for a wall cabinet.

[0005] The present invention provides a double-layer linkage lifting basket for a wall cabinet, comprising a cabinet body, a first basket and a second basket, wherein a mechanical box is symmetrically fixed to the top of the cabinet body, and a rotating block is rotatably connected to the interior of the mechanical box through a bearing;

[0006] One end of the rotating block passes through the mechanical box and is fixedly connected to a first connecting rod, and the side wall of the mechanical box is rotatably connected to a second connecting rod through a bearing, and the ends of the first connecting rod and the second connecting rod are both hinged to the side wall of the first basket, and the first connecting rod, the second connecting rod, the mechanical box and the first basket form a parallelogram structure;

[0007] The first basket is connected to a second basket via a connecting rod assembly;

[0008] A first bracket is hinged on the rotating block, a second bracket is hinged in the mechanical box, and the second bracket is connected to the first bracket via a first damping rod and two first springs;

[0009] A weighted clutch assembly is installed in the mechanical box to improve the bearing capacity of the first basket and the second basket.

[0010] Preferably, the weighted clutch assembly comprises a follower plate, a second spring, a clutch block, a first torsion spring, a toggle block, a second torsion spring and a roller, the rotating block is rotatably connected to the follower plate via a bearing, and one corner of the follower plate is connected to one corner of the mechanical box via the second spring;

[0011] A clutch block is hingedly connected to the follower disk via a rotating shaft, one end of the clutch block is connected to the follower disk via a first torsion spring, the other end of the clutch block is provided with a clamping portion, and the rotating block is provided with a clamping groove that is clamped and matched with the clamping portion;

[0012] A toggle block is slidably connected to the side wall of the mechanical box, one end of the toggle block is connected to the mechanical box via a second torsion spring, and a roller is rotatably connected to the toggle block, which cooperates with the side wall of the clutch block.

[0013] Preferably, the connecting rod assembly includes a third connecting rod, a fourth connecting rod, a first half gear, a second half gear and an intermediate gear, the third connecting rod and the fourth connecting rod are arranged between the first basket and the second basket, one end of the third connecting rod is hinged to the second basket, the other end of the third connecting rod is fixed with the first half gear, the first half gear is hinged to the first basket through a rotating shaft, the two ends of the fourth connecting rod are hinged to the first basket and the second basket respectively, and the first basket, the second basket, the third connecting rod, the first half gear and the fourth connecting rod form a parallelogram structure;

[0014] A second half gear is fixed to one end of the first connecting rod, and the first connecting rod is hinged to the first basket through the second half gear. Three intermediate gears are rotatably connected to the first basket through a rotating shaft, and the three intermediate gears are meshed with each other. The second half gear and the first half gear are both meshed with adjacent intermediate gears.

[0015] Preferably, the first basket and the second basket are arranged in parallel.

[0016] Preferably, the two first connecting rod ends are fixedly connected by a connecting rod.

[0017] Preferably, a handle is installed at the front end of the bottom of the second basket.

[0018] Preferably, a first stopper and a second stopper for supporting the first connecting rod are provided on the inner side of the first basket.

[0019] Preferably, a second damping rod for supporting the first connecting rod is fixed to the inner side of the first basket.

[0020] Preferably, a decorative plate is fixed to the first basket side wall at the end facing the first connecting rod and the second connecting rod.

[0021] Compared with the related art, the present invention has the following beneficial effects:

[0022] With exquisite design and compact structure, compared with conventional designs, the gear adjustment can be easily realized by moving the toggle block up and down, which improves the recognition of different gear adjustments. At the same time, it has an anti-false triggering function to avoid problems such as the pull-out basket not falling or falling too fast and difficulty in pushing the pull-out basket back after falling due to wrong gear adjustment and inconsistency with actual load-bearing capacity, or due to false triggering of gear adjustment. Because the gear adjustment structure is simpler, the mechanism box can be thinned while ensuring stability, making the storage space larger. In addition, the two hanging baskets are connected on both sides by a gear connecting rod structure. The structural connection is simple and firm, which makes the whole machine move up and down smoothly, and the radius of the whole machine is smaller. The product has a simple and reliable structure, bringing consumers an excellent consumer experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0024] Figure 2 A schematic diagram of the relative positions of four connecting rods in the storage state of the present invention;

[0025] Figure 3 It is a three-dimensional schematic diagram of the storage state of the present invention;

[0026] Figure 4 It is a right side view of the storage state of the present invention;

[0027] Figure 5 It is a front view of the internal parts of the mechanism box of the present invention (the adjustment spring is not working);

[0028] Figure 6 It is a three-dimensional schematic diagram of the internal parts of the mechanism box of the present invention (adjusting spring operation);

[0029] Figure 7 A detailed view of a weighted clutch assembly of the present invention;

[0030] Figure 8 An exploded view of the weighted clutch assembly of the present invention;

[0031] Fig. 9 It is a structural schematic diagram of the rotating block of the present invention.

[0032] Numbers in the figure: 1, cabinet; 2, first basket; 3, second basket; 4, mechanical box; 5, rotating block; 6, first connecting rod; 7, second connecting rod; 8, first bracket; 9, second bracket; 10, first damping rod; 11, first spring; 12, weighted clutch assembly; 13, follower plate; 14, second spring; 15, clutch block; 16, first torsion spring; 17, toggle block; 18, second torsion spring; 19, roller; 20, clamping part; 21, clamping groove; 22, third connecting rod; 23, fourth connecting rod; 24, first half gear; 25, second half gear; 26, intermediate gear; 27, connecting rod; 28, handle; 29, first blocking block; 30, second blocking block; 31, second damping rod; 32, decorative panel. DETAILED DESCRIPTION

[0033] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0034] Please refer to Figures 1 to 9 A double-layer linkage lifting basket for a wall cabinet comprises a cabinet body 1, a first basket 2 and a second basket 3. A mechanical box 4 is symmetrically fixed to the top of the cabinet body 1. A rotating block 5 is rotatably connected to the interior of the mechanical box 4 through a bearing.

[0035] One end of the rotating block 5 passes through the mechanical box 4 and is fixedly connected to a first connecting rod 6. The side wall of the mechanical box 4 is rotatably connected to a second connecting rod 7 through a bearing. The ends of the first connecting rod 6 and the second connecting rod 7 are both hinged to the side wall of the first basket 2. The first connecting rod 6, the second connecting rod 7, the mechanical box 4 and the first basket 2 form a parallelogram structure.

[0036] The first basket 2 is connected to a second basket 3 via a connecting rod assembly;

[0037] A first bracket 8 is hinged on the rotating block 5, a second bracket 9 is hinged in the mechanical box 4, and the second bracket 9 is connected to the first bracket 8 via a first damping rod 10 and two first springs 11;

[0038] The mechanism box 4 has a structure composed of two first springs 11 and a first damping rod 10. Because two first springs 11 are used, the reduction in the diameter of the first spring 11 does not affect the spring tension. After the spring diameter is reduced, the thickness of the mechanism box 4 can also be reduced accordingly.

[0039] A weighted clutch assembly 12 for increasing the bearing capacity of the first basket 2 and the second basket 3 is installed in the mechanical box 4 .

[0040] The weighted clutch assembly 12 includes a follower plate 13, a second spring 14, a clutch block 15, a first torsion spring 16, a toggle block 17, a second torsion spring 18 and a roller 19. The rotating block 5 is rotatably connected to the follower plate 13 via a bearing, and one corner of the follower plate 13 is connected to one corner of the mechanical box 4 via the second spring 14.

[0041] A clutch block 15 is hingedly connected to the follower plate 13 via a rotating shaft. One end of the clutch block 15 is connected to the follower plate 13 via a first torsion spring 16. A clamping portion 20 is provided at the other end of the clutch block 15. A clamping groove 21 is provided on the rotating block 5 to be clamped with the clamping portion 20.

[0042] A toggle block 17 is slidably connected to the side wall of the mechanical box 4, and one end of the toggle block 17 is connected to the mechanical box 4 through a second torsion spring 18 (the toggle block 17 is provided with pressure and reset by the second torsion spring 18, and when the roller 19 on the toggle block 17 presses the clutch block 15 of the weighted clutch assembly 12, the second torsion spring 18 provides a clamping force, and when the toggle block 17 is pushed up, the elastic force of the second torsion spring 18 ensures that the toggle block 17 does not fall off.), and a roller 19 is rotatably connected to the toggle block 17, and the roller 19 cooperates with the side wall of the clutch block 15.

[0043] The mechanism box 4 adjusts the gear position by means of a weighted clutch assembly 12 (a ratchet clutch structure):

[0044] When the mechanism box 4 is in a non-weighted state, when the toggle block 17 is toggled downward, the roller 19 squeezes the side wall of the clutch block 15, causing the clutch block 15 to rotate along the shaft, and the engaging portion 20 of the clutch block 15 moves out of the engaging slot 21 of the rotating block 5, and the second spring 14 does not work.

[0045] When the mechanism box 4 is in the weighted state, when the toggle block 17 is toggled upward, the roller 19 on the toggle block 17 is separated from the clutch block 15 of the weighted clutch assembly 12, and the clutch block 15 of the weighted clutch assembly 12 rotates along the rotating shaft under the action of the first torsion spring 16, and the clamping portion 20 of the clutch block 15 hooks the clamping slot 21 of the rotating block 5, and the second spring 14 starts to work.

[0046] When the mechanism box 4 is in a non-weighted state, the toggle block 17 is in a downward pressure state, and the two pull-out baskets are lowered. At this time, the toggle block 17 is pushed up, and the clutch block 15 is reset through the first torsion spring 16, but the clamping portion 20 of the clutch block 15 does not hook the clamping slot 21 of the rotating block 5, but is only hung on the rotating block 5. When the two pull-out baskets rise again, the clutch block 15 will follow the arc surface of the rotating block 5, and finally hook the clamping slot 21 of the rotating block 5 under the action of the first torsion spring 16. The effect of this design is that when the user lowers the pull-out basket, even if the toggle block 17 is triggered by mistake, it will not affect the process of the pull-out basket rising. Compared with other similar mechanisms, it has a little protection effect, avoiding damage to the mechanism box 4 due to incorrect use.

[0047] The connecting rod assembly includes a third connecting rod 22, a fourth connecting rod 23, a first half gear 24, a second half gear 25 and an intermediate gear 26. The third connecting rod 22 and the fourth connecting rod 23 are arranged between the first basket 2 and the second basket 3. One end of the third connecting rod 22 is hinged to the second basket 3. The other end of the third connecting rod 22 is fixed with the first half gear 24. The first half gear 24 is hinged to the first basket 2 through a rotating shaft. Both ends of the fourth connecting rod 23 are hinged to the first basket 2 and the second basket 3 respectively. The first basket 2, the second basket 3, the third connecting rod 22, the first half gear 24 and the fourth connecting rod 23 form a parallelogram structure.

[0048] A second half gear (25) is fixed to one end of the first connecting rod (6), and the first connecting rod (6) is hinged to the first basket (2) via the second half gear (25). Three intermediate gears (26) are rotatably connected to the first basket (2) via a rotating shaft, and the three intermediate gears (26) are meshed with each other. The second half gear (25) and the first half gear (24) are both meshed with adjacent intermediate gears (26).

[0049] The second half gear 25 drives the intermediate gear 26 to rotate and then drives the first half gear 24 to rotate, so that the third connecting rod 22 and the fourth connecting rod 23, through gear linkage, drive the upper and lower second baskets 3 and the first basket 2 to move simultaneously. Compared with the conventional connecting rod mechanism, the gear linkage movement is smoother and smoother, the gear linkage structure is simple, and compared with the multi-link mechanism, the overall movement radius is smaller, and the distance the pull-out basket moves outward is shorter.

[0050] A parallelogram structure is formed by the first connecting rod 6, the second connecting rod 7, the mechanical box 4 and the first basket 2. Another parallelogram structure is formed by the first basket 2, the second basket 3, the third connecting rod 22, the first half gear 24 and the fourth connecting rod 23. In combination with the setting of the second half gear 25 and the intermediate gear 26, the first basket 2 and the second basket 3 can move synchronously. In combination with the first damping rod 10 and the two first springs 11 and the second spring 14, the first basket 2 and the second basket 3 can move smoothly and labor-savingly.

[0051] The first basket 2 and the second basket 3 are arranged in parallel, which is convenient for folding together and for taking and placing items.

[0052] The ends of the two first connecting rods 6 are fixedly connected by a connecting rod 27, so that the first connecting rod 6 is more stable.

[0053] A handle 28 is installed at the front end of the bottom of the second basket 3 to facilitate pulling the second basket 3 up and down.

[0054] A first stopper 29 and a second stopper 30 are provided inside the first basket 2 for supporting the first connecting rod 6 , so as to limit the angle of the first basket 2 when it is unfolded or stored.

[0055] A second damping rod 31 for supporting the first connecting rod 6 is fixed to the inner side of the first basket 2 to play a certain buffering role.

[0056] A decorative plate 32 is fixed to the side wall of the first basket 2 facing the ends of the first connecting rod 6 and the second connecting rod 7.

[0057] The gear linkage structure is simple, and compared with the multi-link mechanism, the overall movement radius is smaller, and the space occupied by the pull-out basket is smaller. The gear linkage structure adopts a modular design to facilitate the overall assembly of the product. The gears on both sides of the pull-out basket are synchronized, which can ensure that the movement paths on the left and right sides of the pull-out basket are consistent, and enhance the stability of the pull-out basket's up and down movement.

[0058] The gear position is adjusted by moving the toggle structure up and down. When the toggle structure is moved downward, the roller on the toggle structure presses the clutch block of the clutch mechanism, the clutch block on the clutch mechanism is in a separated state from the rotating block, and the adjustment spring does not work. When the toggle structure is moved upward, the roller on the toggle structure is separated from the clutch block of the clutch mechanism, the clutch block on the clutch mechanism hooks the groove of the rotating block, and the adjustment spring starts to work. Compared with the existing push-pull adjustment method, this adjustment method more intuitively shows the weighted state of the mechanism box, and the operation is simple and clear.

[0059] The toggle structure provides pressure and thrust through the elastic force of the torsion spring. When the roller on the toggle structure presses the clutch block of the clutch mechanism, the torsion spring provides the clamping force. When the toggle structure is pushed up, the elastic force of the torsion spring ensures that the toggle structure does not fall off.

[0060] How it works

[0061] Lifting mechanism:

[0062] Parallelogram structure: The first connecting rod 6, the second connecting rod 7, the mechanical box 4 and the first basket 2 form a parallelogram structure to ensure the smooth lifting of the first basket 2. The third connecting rod 22, the fourth connecting rod 23, the first half gear 24, the second half gear 25 and the intermediate gear 26 form another parallelogram structure to achieve the synchronous lifting of the first basket 2 and the second basket 3 through gear linkage.

[0063] Gear linkage: A second half gear 25 is fixed at one end of the first connecting rod 6, which meshes with the first half gear 24 through the intermediate gear 26, driving the third connecting rod 22 and the fourth connecting rod 23 to move synchronously, so that the first basket 2 and the second basket 3 can be raised and lowered synchronously. Compared with the traditional multi-link mechanism, the gear linkage structure is simpler, the movement is smoother, and it takes up less space.

[0064] Weighted Clutch Assembly:

[0065] Unweighted state: When the toggle block 17 is in the downward pressure state, the roller 19 squeezes the side wall of the clutch block 15, so that the clutch block 15 rotates along the shaft, the clamping portion 20 moves out of the clamping slot 21 of the rotating block 5, and the second spring 14 does not work. At this time, the basket can be raised and lowered freely.

[0066] Weighted state: when the toggle block 17 is toggled upward, the roller 19 is separated from the clutch block 15, and the clutch block 15 rotates along the shaft under the action of the first torsion spring 16, the clamping portion 20 hooks the clamping groove 21 of the rotating block 5, and the second spring 14 starts to work to increase the bearing capacity of the basket body.

[0067] Protection mechanism: After the basket body descends, even if the toggle block 17 is triggered by mistake, the engaging portion 20 of the clutch block 15 will not immediately hook the engaging slot 21 of the rotating block 5, but will hang on the rotating block 5. When the basket body rises again, the clutch block 15 will hook the engaging slot 21 along the arc surface of the rotating block 5 under the action of the first torsion spring 16, ensuring the smooth rise of the basket body. This design avoids damage to the mechanism caused by misoperation.

[0068] Auxiliary structures:

[0069] Connecting rod 27: fixedly connects the ends of the two first connecting rods 6 to increase the stability of the structure.

[0070] The handle 28 is installed at the front end of the bottom of the second basket 3, so that the user can pull the basket body up and down.

[0071] The first stopper 29 and the second stopper 30 are installed at the inner side of the first basket 2 to support the first connecting rod 6 and limit the expansion and storage angles of the basket body.

[0072] The second damping rod 31 is fixed on the inner side of the first basket 2 to provide additional buffering effect, so that the basket body can be lifted and lowered more smoothly.

[0073] Decorative plate 32: fixed on the side wall of the first basket 2 facing the ends of the first connecting rod 6 and the second connecting rod 7 to improve the overall aesthetics.

[0074] Structural features

[0075] Parallelogram structure: ensures smooth lifting and lowering of the basket, avoiding shaking and tilting.

[0076] Gear linkage: simplifies the structure and improves the smoothness and reliability of movement.

[0077] Weighted clutch assembly: Through the cooperation of the toggle block 17 and the clutch block 15, the bearing capacity of the basket can be adjusted to increase the safety of use.

[0078] Protection mechanism: prevent damage to the mechanism caused by misoperation and increase service life.

[0079] Auxiliary structure: increase the stability and aesthetics of the structure and improve user experience.

[0080] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A double-layer linkage lifting basket for a wall cabinet, characterized in that: It comprises a cabinet (1), a first basket (2) and a second basket (3); a mechanical box (4) is symmetrically fixed to the top of the cabinet (1); a rotating block (5) is rotatably connected to the interior of the mechanical box (4) via a bearing; One end of the rotating block (5) passes through the mechanical box (4) and is fixedly connected to a first connecting rod (6); the side wall of the mechanical box (4) is rotatably connected to a second connecting rod (7) via a bearing; ends of the first connecting rod (6) and the second connecting rod (7) are both hinged to the side wall of the first basket (2); the first connecting rod (6), the second connecting rod (7), the mechanical box (4) and the first basket (2) form a parallelogram structure; The first basket (2) is connected to a second basket (3) via a connecting rod assembly; A first bracket (8) is hingedly connected to the rotating block (5), a second bracket (9) is hingedly connected inside the mechanical box (4), and the second bracket (9) and the first bracket (8) are connected via a first damping rod (10) and two first springs (11); A weighted clutch assembly (12) for increasing the bearing capacity of the first basket (2) and the second basket (3) is installed in the mechanical box (4).

2. A double-layer linkage lifting basket for a wall cabinet according to claim 1, characterized in that: The weighted clutch assembly (12) comprises a follower plate (13), a second spring (14), a clutch block (15), a first torsion spring (16), a toggle block (17), a second torsion spring (18) and a roller (19); the rotating block (5) is rotatably connected to the follower plate (13) via a bearing; one corner of the follower plate (13) is connected to one corner of the mechanical box (4) via the second spring (14); A clutch block (15) is hingedly connected to the follower disk (13) via a rotating shaft, one end of the clutch block (15) is connected to the follower disk (13) via a first torsion spring (16), the other end of the clutch block (15) is provided with a clamping portion (20), and the rotating block (5) is provided with a clamping groove (21) that is clamped and matched with the clamping portion (20); A toggle block (17) is slidably connected to the side wall of the mechanical box (4), one end of the toggle block (17) is connected to the mechanical box (4) via a second torsion spring (18), a roller (19) is rotatably connected to the toggle block (17), and the roller (19) cooperates with the side wall of the clutch block (15).

3. The double-layer linkage lifting basket of a wall cabinet according to claim 1 is characterized in that: The connecting rod assembly comprises a third connecting rod (22), a fourth connecting rod (23), a first half gear (24), a second half gear (25) and an intermediate gear (26); the third connecting rod (22) and the fourth connecting rod (23) are arranged between the first basket (2) and the second basket (3); one end of the third connecting rod (22) is hinged to the second basket (3); the other end of the third connecting rod (22) is fixed with the first half gear (24); the first half gear (24) is hinged to the first basket (2) through a rotating shaft; the two ends of the fourth connecting rod (23) are respectively hinged to the first basket (2) and the second basket (3); the first basket (2), the second basket (3), the third connecting rod (22), the first half gear (24) and the fourth connecting rod (23) form a parallelogram structure; A second half gear (25) is fixed to one end of the first connecting rod (6), and the first connecting rod (6) is hinged to the first basket (2) via the second half gear (25). Three intermediate gears (26) are rotatably connected to the first basket (2) via a rotating shaft, and the three intermediate gears (26) are meshed with each other. The second half gear (25) and the first half gear (24) are both meshed with adjacent intermediate gears (26).

4. The double-layer linkage lifting basket of a wall cabinet according to claim 1, characterized in that: The first basket (2) and the second basket (3) are arranged in parallel.

5. The double-layer linkage lifting basket of a wall cabinet according to claim 1, characterized in that: The ends of the two first connecting rods (6) are fixedly connected via a connecting rod (27).

6. The double-layer linkage lifting basket of a wall cabinet according to claim 1, characterized in that: A handle (28) is installed at the front end of the bottom of the second basket (3).

7. The double-layer linkage lifting basket of a wall cabinet according to claim 1, characterized in that: A first blocking block (29) and a second blocking block (30) for supporting the first connecting rod (6) are provided on the inner side of the first basket (2).

8. The double-layer linkage lifting basket of a wall cabinet according to claim 1, characterized in that: A second damping rod (31) for supporting the first connecting rod (6) is fixed inside the first basket (2).

9. The double-layer linkage lifting basket of a wall cabinet according to claim 1, characterized in that: A decorative plate (32) is fixed to the end of the side wall of the first basket (2) facing the first connecting rod (6) and the second connecting rod (7).

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