A tension adjusting device of a synchronous slide rail
By setting up a synchronous operation device and an adjustment device between the slide rails, the problem of synchronization and stability of the slide rails during opening and closing is solved, realizing synchronous operation and stable transmission of the slide rails, and improving the user experience and lifespan of the product.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU SACA PRECISION TECH CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-07
Smart Images

Figure CN224461335U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of tension adjustment devices, specifically a tension adjustment device for a synchronous slide rail. Background Technology
[0002] Drawer slides are used for drawers or similar pull-out products and are suitable for furniture, filing cabinets, kitchen cabinets, bathroom cabinets, electrical cabinets, heavy-duty refrigerators, etc.
[0003] The existing slide rail has a movable rail body, a middle rail body, and a fixed rail body. The fixed rail body is fitted onto the lower part of the middle rail body and a support plane is installed thereon. The movable rail body is fitted onto the upper part of the middle rail body and a support plane is installed thereon.
[0004] However, the slide rails with the above-mentioned structure have the following shortcomings in practical applications:
[0005] 1) The existing drawer slides have uneven force on the left and right sides during opening and closing, causing the left and right sides of the slides to run asynchronously. This results in the slides not sliding smoothly, poor running stability, and even jamming, which seriously affects the normal use of the product.
[0006] 2) During the opening and closing process, the middle rail of the existing slide rail will be unstable and wobble from side to side, which will cause it to collide with the moving rail and the fixed rail, generating a lot of noise, reducing the user experience, and easily damaging the product, thus reducing its service life.
[0007] 3) If a synchronous running mechanism with rack and pinion is added to the existing slide rail, the structure will be complex, the assembly precision will be high, and the application will be limited. Utility Model Content
[0008] The purpose of this invention is to overcome the shortcomings of the prior art and provide a tension adjustment device for a synchronous slide rail. It has a simple structure, high synchronization performance, smooth transmission, improved operational stability, reduced shaking during operation, and ensured the quality of product use.
[0009] The objective of this invention is achieved as follows: A tension adjustment device for a synchronous slide rail includes a left slide rail and a right slide rail installed on the left and right sides of a drawer. A synchronous operating device for synchronous opening and closing is provided between the left and right slide rails. The left slide rail includes a left movable rail body, a left middle rail body, and a left fixed rail body that are slidably connected in sequence. The right slide rail includes a right movable rail body, a right middle rail body, and a right fixed rail body that are slidably connected in sequence. The synchronous operating device includes a left synchronous connecting seat, a right synchronous connecting seat, a synchronous transmission component, and a synchronous connecting pipe assembly. The left and right synchronous connecting seats are respectively installed on the left and right fixed rail bodies. The synchronous connecting pipe assembly is installed between the left and right synchronous connecting seats. The synchronous transmission component is respectively connected to the left middle rail body and the right middle rail body. The left or right synchronous connecting seat is provided with an adjustment device for adjusting the tension of the synchronous transmission component.
[0010] The adjustment device includes an adjustment base and an adjustment control component. The adjustment base is installed on the left synchronous connector or the right synchronous connector. The ends of the synchronous connector tube group are respectively installed on the adjustment control component, and the adjustment control component can move back and forth on the adjustment base.
[0011] Based on the above optimization, the adjusting base is provided with a threaded inner hole, the adjusting control component is provided with an external thread that is threadedly connected to the threaded inner hole, the adjusting control component is provided with an installation hole for inserting synchronous connection pipe groups, and the adjusting control component is connected through to the synchronous transmission component.
[0012] Based on the above optimization, the adjustment control component is set as an adjustment bolt, and the adjustment bolt has a limiting flange for convenient rotation operation. The limiting flange abuts against or moves away from the adjustment base as the adjustment bolt rotates.
[0013] Alternatively, the adjustment base is provided with an adjustment connection hole, the adjustment control component is adapted to slide back and forth on the adjustment connection hole, and the adjustment control component is provided with an installation socket for inserting the synchronous connection tube assembly, and the adjustment control component is connected through the synchronous transmission component.
[0014] Based on the above optimization, the adjustment control component is set as an adjustment bolt. The adjustment bolt is equipped with an adjustment nut for convenient rotation operation and a limiting clip for limiting the movement position of the adjustment bolt. The adjustment nut is located on one side of the adjustment base and is threadedly connected to the front end of the adjustment bolt. The limiting clip is located at the rear end of the adjustment bolt and moves against or away from the other side of the adjustment base as the adjustment bolt moves.
[0015] Based on the above optimization, the synchronous transmission component is connected to the left middle rail body, the left synchronous connecting seat, the synchronous connecting pipe group, the right synchronous connecting seat, and the right middle rail body respectively to form a transmission path;
[0016] The adjustment control component can move back and forth on the adjustment base while adjusting the length of the transmission path of the synchronous transmission component.
[0017] Based on the above optimization, the left synchronous connecting seat, the left fixed rail, the right synchronous connecting seat, and the right fixed rail are respectively equipped with transmission wheels for the synchronous transmission components.
[0018] Based on the above optimization, the synchronous transmission component is set as a synchronous transmission steel wire, and all transmission wheels are set as transmission grooved wheels for transmission connection of the synchronous transmission component.
[0019] Based on the above optimization, the synchronous connection pipe group is set as a synchronous hollow flexible tube.
[0020] The advantages of this utility model are:
[0021] 1) By adopting the synchronous operation device of this structure, the left synchronous connecting seat, right synchronous connecting seat, synchronous transmission component and synchronous connecting pipe assembly of the device are used to realize the synchronous operation of the left slide rail and right slide rail during opening and closing, so as to avoid the drawer from jamming due to uneven force on the left and right sides, reduce shaking, and improve the stability of operation.
[0022] 2) By adding an adjustment device, the length of the transmission path of the synchronous transmission component can be adjusted by simply controlling the adjustment control component to move back and forth relative to the adjustment base, thereby adjusting the transmission tension of the synchronous transmission component, improving synchronous operation performance, increasing transmission stability, and ensuring the operating quality of the product. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present utility model.
[0024] Figure 2 This is a structural schematic diagram of the first embodiment of the present invention from another angle.
[0025] Figure 3 This is a schematic diagram of the synchronous operation device according to the first embodiment of this utility model.
[0026] Figure 4 This is a schematic diagram of the structure of the adjusting device according to the first embodiment of this utility model.
[0027] Figure 5 This is a schematic diagram of the structure of the second embodiment of the present utility model.
[0028] Figure 6 This is a structural schematic diagram of the second embodiment of the present invention from another angle.
[0029] Figure 7 This is a schematic diagram of the synchronous operation device according to the second embodiment of this utility model.
[0030] Figure 8 This is a schematic diagram of the adjustment device according to the second embodiment of the present invention. Detailed Implementation
[0031] The present invention will now be further described with reference to the accompanying drawings.
[0032] According to the appendix Figures 1 to 4 As shown, the tension adjustment device for the synchronous slide rail of this utility model includes a left slide rail 1 and a right slide rail 2 installed on the left and right sides of the drawer. A synchronous running device for synchronous opening and closing is provided between the left slide rail 1 and the right slide rail 2. The left slide rail 1 includes a left movable rail body 11, a left middle rail body 12, and a left fixed rail body 13 that are slidably connected in sequence. The right slide rail 2 includes a right movable rail body 21, a right middle rail body 22, and a right fixed rail body 23 that are slidably connected in sequence. The synchronous running device includes a left synchronous connecting seat 3, a right synchronous connecting seat 4, a synchronous transmission component 5, and a synchronous connecting pipe assembly 6. The left synchronous connecting seat 3 and the right synchronous connecting seat 4 are respectively installed on the left fixed rail body 13 and the right fixed rail body 23. The synchronous connecting pipe assembly 6 is installed between the left synchronous connecting seat 3 and the right synchronous connecting seat 4. The synchronous transmission component 5 is connected to the left middle rail body 12 and the right middle rail body 22 respectively.
[0033] In actual operation, the synchronous transmission component 5 is connected to the left middle rail body 12, the left synchronous connecting seat 3, the synchronous connecting pipe group 6, the right synchronous connecting seat 4, and the right middle rail body 22 respectively to form a transmission path.
[0034] By utilizing the structural cooperation of the left synchronous connecting seat 3, right synchronous connecting seat 4, synchronous transmission component 5, and synchronous connecting pipe group 6 of the synchronous operation device, a transmission path is formed, enabling the left slide rail 1 and right slide rail 2 to run synchronously during opening and closing. This avoids uneven force on the left and right sides of the drawer, which can cause jamming, and also reduces shaking, thus improving operational stability.
[0035] Furthermore, the left synchronous connector 3 or the right synchronous connector 4 is equipped with an adjustment device 7 for adjusting the transmission tension of the synchronous transmission component 5. The adjustment device 7 includes an adjustment base 71 and an adjustment control component 72. The adjustment base 71 is installed on the left synchronous connector 3 or the right synchronous connector 4, and the ends of the synchronous connecting pipe group 6 are respectively installed on the adjustment control component 72. The adjustment control component 72 can move back and forth on the adjustment base 71 while adjusting the length of the transmission path of the synchronous transmission component 5.
[0036] In this way, by simply controlling the adjustment control component 72 to move back and forth relative to the adjustment base 71, the length of the transmission path of the synchronous transmission component 5 can be adjusted, thereby adjusting the transmission tension of the synchronous transmission component 5, improving synchronous operation performance, increasing transmission stability, and ensuring the operating quality of the product.
[0037] Reference Figures 1 to 4As shown in the figure, to be further detailed, the left synchronous connecting seat 3, the left fixed rail 13, the right synchronous connecting seat 4, and the right fixed rail 23 are respectively equipped with transmission wheels 8 for the synchronous transmission component 5.
[0038] Furthermore, the synchronous transmission component 5 is configured as a synchronous transmission steel wire, and the transmission wheels 8 are all configured as transmission grooved wheels for the synchronous transmission component 5 to drive and connect.
[0039] The synchronous transmission steel wire and transmission wheel 8 of this structure improve transmission stability and effectively ensure that the left slide rail 1 and right slide rail 2 open and close synchronously, reducing opening and closing wobbling. It is suitable for both manual and electric opening and closing of the slide rails, making it widely applicable.
[0040] In addition, the synchronous connecting pipe assembly 6 is a synchronous hollow flexible tube. This prevents detachment due to deformation and ensures the stability of synchronous operation.
[0041] Reference Figures 1 to 4 As shown in the figure, further detailed, the adjusting base 71 is provided with a threaded inner hole 711, the adjusting control component 72 is provided with an external thread that is threadedly connected to the threaded inner hole 711, the adjusting control component 72 is provided with an installation socket 721 for inserting the synchronous connecting pipe group 6, and the adjusting control component 72 is connected through to the synchronous transmission component 5.
[0042] The adjustment control component 72 is an adjustment bolt, which has a limiting flange 722 for convenient rotation operation. The limiting flange 722 abuts against or moves away from the adjustment base 71 as the adjustment bolt rotates.
[0043] That is, by simply using a tool connected to the limiting flange 722 and controlling the rotation of the adjusting bolt, the adjusting bolt can be moved forward or backward within the threaded inner hole 711, thereby adjusting the path between the adjusting bolt and the corresponding transmission wheel 8. When the adjusting bolt is screwed outward, the total length of the transmission path is relatively increased, thus tensioning the synchronous transmission component 5. Conversely, when the adjusting bolt is screwed inward, the total length of the transmission path is relatively shortened, thus appropriately adjusting the tension of the synchronous transmission component 5.
[0044] Reference Figures 5 to 8 As shown, the second embodiment differs from the above in that: the adjustment base 71 is provided with an adjustment connection hole 712, the adjustment control component 72 is adapted to slide back and forth on the adjustment connection hole 712, and the adjustment control component 72 is provided with an installation socket 721 for inserting the synchronous connection tube group 6, and the adjustment control component 72 is connected through the beginning and end annular connection transmission path.
[0045] The adjustment control component 72 is an adjustment bolt. The adjustment bolt is equipped with an adjustment nut 73 for convenient rotation and a limiting clip for limiting the movement of the adjustment bolt. The adjustment nut 73 is located on one side of the adjustment base 71 and is threaded to the front end of the adjustment bolt. The limiting clip is located at the rear end of the adjustment bolt and moves against or away from the other side of the adjustment base 71 as the adjustment bolt moves.
[0046] That is, by simply using a tool connected to the limiting flange 722 and controlling the rotation of the adjusting nut 73, the adjusting bolt can be moved forward or backward into the adjusting connection hole 712, thereby adjusting the path between the adjusting bolt and the corresponding transmission wheel 8. When the adjusting bolt moves outward, the total length of the transmission path is relatively increased, thus tensioning the synchronous transmission component 5. Conversely, when the adjusting bolt moves inward, the total length of the transmission path is relatively shortened, thus appropriately adjusting the tension of the synchronous transmission component 5.
[0047] Similarly, by moving the control and adjustment component 72 back and forth relative to the adjustment base 71, the transmission tension of the synchronous transmission component 5 can be adjusted. The structure is simple, the operation is convenient, the synchronous operation performance is improved, the transmission stability is increased, and the operating quality of the product is ensured.
[0048] The above specific embodiments are only specific implementations of the present utility model with better effects. Any structure that is the same as or equivalent to the tension adjustment device of the synchronous slide rail of the present utility model is within the protection scope of the present utility model.
Claims
1. A tension adjustment device for a synchronous slide rail, comprising a left slide rail (1) and a right slide rail (2) installed on the left and right sides of a drawer, wherein a synchronous operating device for synchronous opening and closing is provided between the left slide rail (1) and the right slide rail (2), the left slide rail (1) comprising a left movable rail body (11), a left middle rail body (12), and a left fixed rail body (13) connected in sequence, and the right slide rail (2) comprising a right movable rail body (21), a right middle rail body (22), and a right fixed rail body (23) connected in sequence, characterized in that: The synchronous operation device includes a left synchronous connecting seat (3), a right synchronous connecting seat (4), a synchronous transmission component (5), and a synchronous connecting pipe assembly (6). The left synchronous connecting seat (3) and the right synchronous connecting seat (4) are respectively installed on the left fixed rail body (13) and the right fixed rail body (23). The synchronous connecting pipe assembly (6) is installed between the left synchronous connecting seat (3) and the right synchronous connecting seat (4). The synchronous transmission component (5) is respectively connected to the left middle rail body (12) and the right middle rail body (22). The left synchronous connecting seat (3) or the right synchronous connecting seat (4) is provided with an adjustment device (7) for adjusting the transmission tension of the synchronous transmission component (5). The adjustment device (7) includes an adjustment base (71) and an adjustment control component (72). The adjustment base (71) is installed on the left synchronous connector (3) or the right synchronous connector (4). The ends of the synchronous connector assembly (6) are respectively installed on the adjustment control component (72).
2. The tension adjustment device for the synchronous slide rail according to claim 1, characterized in that: The adjusting base (71) is provided with a threaded inner hole (711), the adjusting control component (72) is provided with an external thread that is threadedly connected to the threaded inner hole (711), the adjusting control component (72) is provided with an installation socket (721) for inserting the synchronous connection tube assembly (6), and the adjusting control component (72) is connected through to the synchronous transmission component (5).
3. The tension adjustment device for the synchronous slide rail according to claim 2, characterized in that: The adjustment control element (72) is an adjustment bolt, which has a limiting flange (722) for convenient rotation operation. The limiting flange (722) abuts against or moves away from the adjustment base (71) as the adjustment bolt rotates.
4. The tension adjustment device for the synchronous slide rail according to claim 1, characterized in that: The adjustment base (71) is provided with an adjustment connection hole (712), and the adjustment control component (72) is adapted to slide back and forth on the adjustment connection hole (712). The adjustment control component (72) is provided with an installation socket (721) for inserting the synchronous connection tube assembly (6). The adjustment control component (72) is connected through the synchronous transmission component (5).
5. The tension adjustment device for the synchronous slide rail according to claim 4, characterized in that: The adjustment control component (72) is an adjustment bolt. The adjustment bolt is provided with an adjustment nut (73) for convenient rotation operation and a limiting clip for limiting the movement position of the adjustment bolt. The adjustment nut (73) is located on one side of the adjustment base (71) and is threadedly connected to the front end of the adjustment bolt. The limiting clip is located at the rear end of the adjustment bolt and moves against or away from the other side of the adjustment base (71) as the adjustment bolt moves.
6. The tension adjustment device for the synchronous slide rail according to claim 1, characterized in that: The synchronous transmission component (5) is connected to the left middle rail body (12), the left synchronous connecting seat (3), the synchronous connecting pipe group (6), the right synchronous connecting seat (4), and the right middle rail body (22) respectively to form a transmission path; The adjustment control component (72) can move back and forth on the adjustment base (71) while adjusting the length of the transmission path of the synchronous transmission component (5).
7. The tension adjustment device for the synchronous slide rail according to claim 1, characterized in that: The left synchronous connector (3), left fixed rail (13), right synchronous connector (4), and right fixed rail (23) are respectively equipped with transmission wheels (8) for the synchronous transmission component (5).
8. The tension adjustment device for the synchronous slide rail according to claim 7, characterized in that: The synchronous transmission component (5) is configured as a synchronous transmission steel wire, and the transmission wheels (8) are all configured as transmission grooved wheels for transmission connection of the synchronous transmission component (5).
9. The tension adjustment device for the synchronous slide rail according to claim 1, characterized in that: The synchronous connecting pipe assembly (6) is configured as a synchronous hollow flexible tube.