Guide rail supporting structure for drawer

Abstract

The utility model relates to the technical field of guide rail supporting structures, in particular to a guide rail supporting structure for a drawer. According to the technical scheme, the device comprises two slide ways, a pull rod is installed on the slide ways, the device further comprises a transmission rod and a supporting rod which are rotatably installed on the pull rod, a connecting plate is rotatably installed on the transmission rod and the supporting rod, buffer modules are installed at the two ends of the slide ways, and each buffer module comprises a buffer spring, a hydraulic amplification component and a counter-force shielding mechanism. The elastic force applied to the pull rod by the buffer spring is amplified through the hydraulic amplification part, so that the buffer effect on the drawer can be improved by using the smaller buffer spring, and the space utilization rate of the drawer slide rail can be improved and the space required for mounting the slide rail can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of guide rail support structure technology, and in particular to a drawer guide rail support structure. Background Technology

[0002] Drawers and drawer slides are common functional components in furniture, widely used in cabinets, desks, wardrobes, and other similar applications. Drawer slides are the core component for drawer opening and closing, directly affecting smoothness and load-bearing capacity.

[0003] For safety and user experience, buffers are typically installed at both ends of drawer slides. These buffers protect the slide structure, extend its lifespan, and absorb impact when the drawer closes quickly, preventing the metal parts of the slide from directly colliding with the cabinet and reducing the risk of deformation or loose screws. This effectively improves both safety and noise reduction.

[0004] In drawer slides, the elastic buffer is usually designed with springs. The buffering performance of the spring is closely related to its volume (especially parameters such as wire diameter, number of coils, and free length). Therefore, in order to improve the buffering performance, it is generally necessary to increase the volume of the buffer, which is not conducive to improving the space utilization of drawer slides and the space required for installing the slides. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a drawer guide rail support structure.

[0006] The technical solution of this utility model: A drawer guide rail support structure, including two slide rails, on which a pull rod is installed, and further comprising:

[0007] A transmission rod and a support rod are rotatably mounted on the tie rod, and a connecting plate is rotatably mounted on the transmission rod and the support rod;

[0008] The buffer modules installed at both ends of the slide include a buffer spring, a hydraulic amplification component, and a reaction force shielding mechanism. The hydraulic amplification component amplifies the elastic force applied by the buffer spring to the pull rod, and the reaction force shielding mechanism limits the compression of the buffer spring.

[0009] Optionally, the hydraulic amplification component includes a buffer body fixedly installed in the slide rail. The buffer body has a first circular hole and a second circular hole with a diameter larger than the first circular hole. A first sealing head is slidably installed in the first circular hole, and a second sealing head is slidably installed in the second circular hole. A stress relief block is fixedly installed on the second sealing head. The stress relief block extends through one side of the buffer body to the outside of the buffer body. The buffer spring is fixedly connected to the first circular hole and the first sealing head.

[0010] Optionally, a sealing element is provided between the first sealing head and the first circular hole, and between the second sealing head and the second circular hole, and a transmission medium is filled between the first sealing head and the second sealing head.

[0011] Optionally, the reaction force shielding mechanism includes a first cylinder fixedly installed inside the first circular hole, a first blocking block slidably installed inside the first cylinder, a connecting rod fixedly installed on the first blocking block, the connecting rod passing through one side of the first cylinder and fixedly connected to the first sealing head, a second cylinder fixedly installed inside the slide, a second blocking block slidably installed inside the second cylinder, one end of the first cylinder and the second cylinder being connected through a first pipe, and the other end being connected through a second pipe and a third pipe, and the first cylinder, the second cylinder, the first pipe, the second pipe and the third pipe are all filled with hydraulic medium.

[0012] Optionally, the reaction force shielding mechanism further includes a one-way valve fixedly installed on the second pipeline and a valve fixedly installed on the third pipeline. The valve includes a valve body and a valve core rotatably installed in the valve body to block the valve body. The reaction force shielding mechanism also includes a control component for controlling the opening and closing of the valve.

[0013] Optionally, the control component includes a first transmission cylinder rotatably mounted on a buffer body, a first sealing plate slidably mounted inside the first transmission cylinder, a round rod fixedly mounted on the first sealing plate, a connecting plate rotatably connected to the valve core fixedly mounted on the round rod, a second transmission cylinder fixedly mounted inside the unloading block, a second sealing plate slidably mounted inside the second transmission cylinder, a return spring fixedly mounted between the second transmission cylinder and the second sealing plate, a pressure rod fixedly mounted on the second sealing plate, and the two ends of the first transmission cylinder and the second transmission cylinder connected by a pipeline, with the first transmission cylinder, the second transmission cylinder, and the pipeline all filled with a transmission medium.

[0014] Optionally, a roller is rotatably mounted on the pull rod, and the roller is located inside the slide rail.

[0015] In summary, this application includes at least one of the following beneficial technical effects:

[0016] This invention amplifies the elastic force applied by the buffer spring to the pull rod through a hydraulic amplification component, thereby using a smaller buffer spring to improve the buffering effect on the drawer. This is beneficial for improving the space utilization of the drawer slides and reducing the space required for installing the slides. Attached Figure Description

[0017] Figure 1 A schematic diagram of the guide rail support structure is given. Figure 1 ;

[0018] Figure 2 A schematic diagram of the guide rail support structure is given. Figure 2 ;

[0019] Figure 3 This is a schematic diagram showing the location of the buffer module;

[0020] Figure 4 This is a schematic diagram of the buffer module.

[0021] Figure 5 A schematic diagram showing the locations of the second and third pipes;

[0022] Figure 6 This is a schematic diagram of the control component.

[0023] Reference numerals: 1. Slide rail; 2. Tie rod; 201. Roller; 3. Transmission rod; 301. Support rod; 302. Connecting plate; 4. Buffer module; 401. Buffer body; 402. First circular hole; 403. Second circular hole; 404. First sealing head; 405. Second sealing head; 406. Unloading block; 407. Buffer spring; 408. First cylinder; 409. First blocking block; 410. Connecting rod; 411. Second cylinder; 412. First pipe; 413. Second pipe; 414. Third pipe; 415. One-way valve; 416. Valve; 417. First transmission cylinder; 418. First sealing plate; 419. Round rod; 420. Connecting plate; 421. Second transmission cylinder; 422. Second sealing plate; 423. Pressure rod; 424. Return spring; 425. Pipeline; 426. Second blocking block. Detailed Implementation

[0024] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] like Figures 1 to 2 As shown, the present invention proposes a drawer guide rail support structure, including two slides 1, a pull rod 2 installed on the slide 1, and a roller 201 rotatably installed on the pull rod 2. The roller 201 is located inside the slide 1. By pulling the pull rod 2, the roller 201 can be moved inside the slide 1, which can effectively reduce the resistance when pulling the drawer.

[0026] This embodiment also includes a transmission rod 3 and a support rod 301 rotatably mounted on the pull rod 2. A connecting plate 302 is rotatably mounted on the transmission rod 3 and the support rod 301. The drawer is installed between the two connecting plates 302. The two pull rods 2 can support and guide the drawer. The support rod 301 and the connecting plate 302 enable the drawer to lift. When needed, by pulling the drawer upward, the drawer can be smoothly raised to a certain angle, making it easier for users to retrieve items placed deep inside. This provides a more convenient angle and space, greatly improving the convenience and flexibility of use, and bringing a more user-friendly experience.

[0027] like Figures 3 to 6 As shown, this embodiment also includes buffer modules 4 installed at both ends of the slide rail 1. The buffer module 4 includes a buffer spring 407, a hydraulic amplification component, and a reaction force shielding mechanism. The hydraulic amplification component amplifies the elastic force applied by the buffer spring 407 to the pull rod 2, and the reaction force shielding mechanism limits the compressed buffer spring 407. The hydraulic amplification component allows a smaller buffer spring 407 to apply a larger buffering force to the drawer, and the reaction force shielding mechanism prevents the drawer from moving outward under the action of the buffer spring 407.

[0028] Further hydraulic amplification components include a buffer body 401 fixedly installed within the slide rail 1. The buffer body 401 has a first circular hole 402 and a second circular hole 403 with a larger diameter than the first circular hole 402. A first sealing head 404 is slidably installed within the first circular hole 402, and a second sealing head 405 is slidably installed within the second circular hole 403. A stress-relieving block 406 is fixedly installed on the second sealing head 405, extending through one side of the buffer body 401 to the outside of the buffer body 401. A buffer spring 407 is fixedly connected to the first circular hole 402 and the first sealing head 404. The first sealing head 404... A sealing element is provided between the end cap 404 and the first circular hole 402, and between the second sealing head 405 and the second circular hole 403. The space between the first sealing head 404 and the second sealing head 405 is filled with a transmission medium. The unloading block 406 is located on the side close to the roller 201. When the roller 201 approaches the unloading block 406, it will squeeze the unloading block 406. Through the transmission of the transmission medium, the first sealing head 404 will move, and the first sealing head 404 will squeeze the buffer spring 407, thereby achieving a buffering effect. The transmission medium is an incompressible liquid in the working environment.

[0029] It should be noted that in a static fluid, pressure is transmitted uniformly and in a direction perpendicular to the contact surface. Therefore, if a constant hydraulic pressure is applied to the area between the two plugs, the pressure will act uniformly on the contact surfaces of the first sealing head 404 and the second sealing head 405. The force on the first sealing head 404 and the second sealing head 405 is related to their effective contact area. If the orifice diameters of the first sealing head 404 and the second sealing head 405 are different, even if the pressure is the same, the force they experience will be different.

[0030] Specifically, the area determines the magnitude of the force. A plug with a larger orifice will experience a greater force because it has a larger effective area; conversely, a plug with a smaller orifice will experience a smaller force.

[0031] Therefore, the first sealing head 404 actively pushes the second sealing head 405, requiring a smaller input force but a larger output force.

[0032] The second sealing head 405 actively pushes the first sealing head 404, requiring a larger input force and a smaller output force. This amplifies the elastic force exerted by the buffer spring 407 on the unloading block 406. The amplification factor depends on the ratio of the areas of the first sealing head 404 and the second sealing head 405. Therefore, by reasonably setting the area ratio of the first sealing head 404 and the second sealing head 405, a smaller buffer spring 407 can be used to improve the buffering effect on the drawer.

[0033] Furthermore, since the elastic force of the buffer spring 407 is amplified by the hydraulic amplification component and applied to the drawer, the drawer always has a tendency to pop outward, which is detrimental to the stability of the drawer. The reaction force shielding mechanism includes a first cylinder 408 fixedly installed inside the first circular hole 402, a first block 409 slidably installed inside the first cylinder 408, a connecting rod 410 fixedly installed on the first block 409, the connecting rod 410 passing through one side of the first cylinder 408 and fixedly connected to the first sealing head 404, a second cylinder 411 fixedly installed inside the slide rail 1, a second block 426 slidably installed inside the second cylinder 411, and the first cylinder 408 and the first... One end of the two cylinders 411 is connected through the first pipe 412, and the other end is connected through the second pipe 413 and the third pipe 414. The first cylinder 408, the second cylinder 411, the first pipe 412, the second pipe 413 and the third pipe 414 are all filled with hydraulic medium. When the first sealing head 404 moves, it will drive the connecting rod 410 to move, thereby causing the first block 409 to move. This allows the hydraulic medium inside the first block 409 to be squeezed into the second cylinder 411 through the first pipe 412, and the hydraulic medium inside the second cylinder 411 can enter the first cylinder 408 through the second pipe 413.

[0034] The reaction force shielding mechanism also includes a one-way valve 415 fixedly installed on the second pipe 413 and a valve 416 fixedly installed on the third pipe 414. The valve 416 includes a valve body and a valve core rotatably installed in the valve body to block the valve body. The one-way valve 415 allows the material in the second cylinder 411 to flow unidirectionally to the first cylinder 408. The reaction force shielding mechanism also includes a control component that controls the opening and closing of the valve 416. When the elastic force of the buffer spring 407 is released, it will drive the first block 409 to move. At this time, the hydraulic medium inside the first cylinder 408 will enter the second cylinder 411 through the second pipe 413 or the third pipe 414. Due to the setting of the one-way valve 415, the hydraulic medium cannot pass through the second pipe 413 at this time. Whether the hydraulic medium can pass through the third pipe 414 depends on the opening and closing state of the valve 416. If the valve 416 is closed, the hydraulic medium cannot flow, so that the first block 409 cannot move towards the roller 201, and thus the elastic force of the buffer spring 407 cannot be released.

[0035] It is worth noting that the control assembly includes a first transmission cylinder 417 rotatably mounted on the buffer body 401, a first sealing plate 418 slidably mounted inside the first transmission cylinder 417, a round rod 419 fixedly mounted on the first sealing plate 418, a connecting plate 420 rotatably connected to the valve core fixedly mounted on the round rod 419, a second transmission cylinder 421 fixedly mounted inside the unloading block 406, a second sealing plate 422 slidably mounted inside the second transmission cylinder 421, a return spring 424 fixedly mounted between the second transmission cylinder 421 and the second sealing plate 422, and a pressure rod 423 fixedly mounted on the second sealing plate 422. The two ends of the first transmission cylinder 417 and the second transmission cylinder 421 are connected by a pipe 4. The first transmission cylinder 417, the second transmission cylinder 421, and the pipeline 425 are all filled with transmission medium. When the roller 201 squeezes the unloading block 406, it will simultaneously squeeze the pressure rod 423. Through the transmission of the hydraulic medium, the first sealing plate 418 can be moved, which can cause the connecting plate 420 to drive the valve to rotate. The rotation of the valve core can control the opening and closing state of the valve 416. At this time, the valve 416 can be closed, so that the buffer spring 407 can only be compressed and cannot be released. When the drawer is pulled out, the valve core can be reset under the action of the return spring 424, so that the valve 416 can be opened, and the elastic force of the buffer spring 407 can be released.

[0036] In this embodiment, the unloading block 406 is located on the side close to the roller 201. When the roller 201 approaches the unloading block 406, it will squeeze the unloading block 406. Through the transmission medium, the first sealing head 404 will move and squeeze the buffer spring 407, thereby achieving a buffering effect. The second sealing head 405 actively pushes the first sealing head 404, requiring a larger input force and a smaller output force, thereby amplifying the elastic force exerted by the buffer spring 407 on the unloading block 406. The amplification factor depends on the ratio of the area of ​​the first sealing head 404 and the second sealing head 405. Therefore, by reasonably setting the area ratio of the first sealing head 404 and the second sealing head 405, a smaller buffer spring 407 can be used to improve the buffering effect on the drawer.

[0037] The above specific embodiments are merely several optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A guide rail support structure for a drawer comprising two runners (1) on which a pull rod (2) is mounted, characterized in that, Also include: The transmission rod (3) and the support rod (301) are rotatably installed on the pull rod (2), and a connecting plate (302) is rotatably installed on the transmission rod (3) and the support rod (301); The buffer module (4) is installed at both ends of the slide (1), and the buffer module (4) includes a buffer spring (407), a hydraulic amplification component and a counterforce shielding mechanism, the hydraulic amplification component amplifies the elastic force of the buffer spring (407) on the pull rod (2), and the counterforce shielding mechanism limits the compressed buffer spring (407).

2. The drawer guide support structure according to claim 1, wherein The hydraulic amplification component includes a buffer body (401) fixedly installed in the slide (1), the buffer body (401) is provided with a first circular hole (402) and a second circular hole (403) with a larger hole diameter than the first circular hole (402), a first sealing head (404) is slidably installed in the first circular hole (402), a second sealing head (405) is slidably installed in the second circular hole (403), a force relieving block (406) is fixedly installed on the second sealing head (405), the force relieving block (406) extends to the outside of the buffer body (401) through one side of the buffer body (401), and the buffer spring (407) is fixedly connected with the first circular hole (402) and the first sealing head (404).

3. The drawer guide support structure according to claim 2, wherein Sealing elements are arranged between the first sealing head (404) and the first circular hole (402) and between the second sealing head (405) and the second circular hole (403), and a transmission medium is filled between the first sealing head (404) and the second sealing head (405).

4. The drawer guide support structure according to claim 3, wherein The counterforce shielding mechanism includes a first cylinder (408) fixedly installed in the first circular hole (402), a first blocking block (409) is slidably installed in the first cylinder (408), a connecting rod (410) is fixedly installed on the first blocking block (409), the connecting rod (410) penetrates one side of the first cylinder (408) and is fixedly connected with the first sealing head (404), a second cylinder (411) is fixedly installed in the slide (1), a second blocking block (426) is slidably installed in the second cylinder (411), one end of the first cylinder (408) and the second cylinder (411) is communicated through a first pipeline (412), the other end is communicated through a second pipeline (413) and a third pipeline (414), and the first cylinder (408), the second cylinder (411), the first pipeline (412), the second pipeline (413) and the third pipeline (414) are all filled with hydraulic medium.

5. The drawer guide support structure according to claim 4, wherein The counterforce shielding mechanism further includes a one-way valve (415) fixedly installed on the second pipeline (413) and a valve (416) fixedly installed on the third pipeline (414), the valve (416) includes a valve body and a valve core rotatably installed in the valve body to block the valve body, and the counterforce shielding mechanism further includes a control assembly for controlling the opening and closing of the valve (416).

6. The drawer guide support structure according to claim 5, wherein The control assembly comprises a first transmission cylinder (417) rotatably installed on the buffer body (401), a first blocking plate (418) slidably installed in the first transmission cylinder (417), a round rod (419) fixedly installed on the first blocking plate (418), a connecting plate (420) fixedly installed on the round rod (419) and rotatably connected with the valve core, a second transmission cylinder (421) fixedly installed in the unloading block (406), a second blocking plate (422) slidably installed in the second transmission cylinder (421), a reset spring (424) fixedly installed between the second transmission cylinder (421) and the second blocking plate (422), a pressing rod (423) fixedly installed on the second blocking plate (422), and the two ends of the pressing rod (423), the first transmission cylinder (417) and the second transmission cylinder (421) are communicated through a pipeline (425), and the first transmission cylinder (417), the second transmission cylinder (421) and the pipeline (425) are all filled with transmission medium.

7. The drawer guide rail support structure according to claim 6, wherein The roller (201) is rotatably installed on the pull rod (2) and located inside the slide (1).

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