Transmission wheel seat and linkage sliding door

By arranging multiple drive wheels side by side, adjusting the position of the drive wheels with movable plates and adjusting bolts, and fixing them with guide components and fasteners, the problems of belt wear and overlap in the drive wheel seat are solved, thereby increasing belt clearance, improving structural stability and aesthetics.

CN224260117UActive Publication Date: 2026-05-19ZHAOQING DAOBO PRECISION HARDWARE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHAOQING DAOBO PRECISION HARDWARE CO LTD
Filing Date
2025-05-13
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

In the existing technology, increasing the diameter of the transmission wheel leads to an increase in the overlap between the beginning and end of adjacent door panels, affecting aesthetics and usability, and the belt and guide wheel experience severe wear.

Method used

Multiple drive pulleys are arranged side by side to increase belt clearance. The position of the drive pulleys is adjusted by a movable plate and adjusting bolts. They are then fixed with guide components and fasteners to prevent belt wear. Folded edges are used to enhance structural stability.

Benefits of technology

It effectively avoids wear and tear between the belt and the guide assembly, reduces overlap, improves aesthetics and usability, and enhances the stability and convenience of the transmission system.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a transmission wheel seat and a linkage sliding door, the transmission wheel seat comprises a seat body, a transmission assembly and a guide assembly, the transmission assembly and the guide assembly are arranged on the seat body, the transmission assembly is arranged at one end of the seat body, the transmission assembly comprises at least two transmission wheels, and the two transmission wheels are arranged side by side in the width direction of the seat body; the guide assembly is arranged at the other end of the base body, the guide wheel is arranged on the base body and connected with the guide assembly, the at least two transmission wheels are arranged side by side, the multiple transmission wheels make contact with the belts, the belts are wound around the transmission wheels, gaps between the belts are enlarged, and abrasion caused by contact between the belts and the guide assembly is avoided.
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Description

Technical Field

[0001] This application relates to the field of linkage doors, and in particular to a transmission wheel seat and a linkage sliding door. Background Technology

[0002] Linked sliding doors utilize a drive belt and drive wheels to achieve the coordinated movement of multiple door panels. The drive wheel seat is a device on the linked door used to mount the drive wheels, and the coordinated movement of each door panel is achieved through the traction of the drive belt and drive wheels. Specifically, CN216200303U discloses a flush drive wheel, where the belt and guide wheel are arranged on the same straight line. However, during belt drive, the belt easily comes into contact with the guide wheel's post, causing belt wear and reducing its service life. To solve this problem, related technical solutions often increase the diameter of the drive wheel to prevent the post from contacting the belt when swinging. However, when adjacent door panels are fully open, a larger drive wheel diameter leads to a significant increase in the overlap at the connection point of the beginning and end of adjacent door panels, making it impossible for the beginning and end of two adjacent door panels to completely overlap. This not only affects the aesthetics of the actual door structure but also its practical use. Utility Model Content

[0003] This application aims to address at least one of the technical problems existing in the prior art.

[0004] The first aspect of this application provides a transmission wheel seat, which includes a seat body and a transmission assembly and a guide assembly disposed on the seat body. The transmission assembly is disposed at one end of the seat body and includes at least two transmission wheels arranged side by side along the width direction of the seat body. The guide assembly is disposed at the other end of the seat body and a guide wheel is disposed on the seat body and connected to the guide assembly.

[0005] The transmission wheel seat provided in this application has at least the following beneficial effects: by having at least two transmission wheels arranged side by side, with each transmission wheel in contact with a belt and the belt wound around the two transmission wheels, the multiple transmission wheels allow the belt to spread out at a larger angle during transmission, thereby increasing the gap between the belts and preventing the belt from contacting and wearing with the guide components.

[0006] According to some technical solutions of this application, the transmission assembly further includes a movable plate, which is disposed on the base and slidably connected to the base, and the two transmission wheels are disposed on the movable plate.

[0007] According to some technical solutions of this application, the seat body is further provided with a first adjusting bolt, which is threadedly connected to one end of the sliding plate.

[0008] According to some technical solutions of this application, the movable plate is further provided with a movable block and a fixing bolt, the transmission wheel is provided on the movable block, the movable block is provided with an oblong hole, and one end of the fixing bolt passes through the oblong hole and is fixedly connected to the movable plate.

[0009] According to some technical solutions of this application, the movable plate is further provided with a pressure plate, one end of the pressure plate is fixed to the movable block, and the other end of the pressure plate abuts against the top of the transmission wheel.

[0010] According to some technical solutions of this application, the guide assembly further includes a movable plate and a movable piece. The movable plate is disposed on the base and is slidably connected to the base. The movable piece is disposed above the movable plate and is slidably connected to the movable plate. Guide wheels are provided at both ends of the movable plate. Guide grooves are provided on the movable plate. Guide posts are provided at the bottom of the movable piece and are connected to the guide grooves.

[0011] According to some technical solutions of this application, the seat body is further provided with a second adjusting bolt, which is threadedly connected to the moving plate.

[0012] According to some technical solutions of this application, the transmission wheel seat also includes a fastener, the seat body is provided with a fixing hole, the fastener is threadedly connected to the fixing hole, and the tail end of the fastener has a protrusion.

[0013] According to some technical solutions of this application, the two ends of the seat are respectively provided with downward folded edges, and the outer end face of each folded edge is flush with the end face of the end of the seat.

[0014] A second aspect of this application also provides a linkage sliding door, which includes a mounting rail and a belt, and further includes a drive wheel seat as described in any of the preceding claims, the drive wheel seat being mounted on the mounting rail, and the belt being connected to the drive wheel.

[0015] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 This is a three-dimensional structural diagram of the transmission wheel seat provided in an embodiment of this application;

[0018] Figure 2 This is a schematic diagram of the bottom structure of the transmission wheel seat provided in an embodiment of this application;

[0019] Figure 3 A structural diagram of the transmission wheel seat provided in an embodiment of this application;

[0020] Figure 4 A side view structural diagram of the transmission wheel seat provided in an embodiment of this application;

[0021] Figure 5 This is a schematic diagram of the structure of the transmission wheel seat after installation, as provided in the embodiments of this application.

[0022] Figure 6 This is a schematic diagram of the structure of the pressure plate after installation, as provided in the embodiments of this application;

[0023] Figure 7 This is a schematic diagram of an installation state of the transmission wheel provided in an embodiment of this application;

[0024] Figure 8 A schematic diagram of another installation state of the transmission wheel provided in an embodiment of this application;

[0025] Figure 9 This is a schematic diagram of the connection state of the transmission wheel seat provided in an embodiment of this application.

[0026] In the attached diagram: 100-base; 200-transmission assembly; 300-guide assembly; 400-first adjusting bolt; 500-second adjusting bolt; 600-fastener; 700-mounting rail; 110-folded edge; 111-connecting hole; 101-fixing hole; 210-transmission wheel; 310-guide wheel; 220-moving plate; 230-pressure plate; 240-moving block; 241-waist-shaped hole; 250-fixing bolt; 320-moving plate; 321-guide groove; 330-moving piece; 331-guide post; 601-spiked part. Detailed Implementation

[0027] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0028] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Regarding directional descriptions, such as "up," "down," "front," "back," "left," and "right," the directions or positional relationships indicated are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, not indicating or implying that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. In the description of this application, unless otherwise expressly defined, terms such as "set," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0029] The following is combined with Figures 1 to 9 The embodiments of this application are described below.

[0030] Based on the above, this application provides a transmission wheel seat, first referring to... Figure 1 The three-dimensional structural diagram of the transmission wheel seat shown includes a seat body 100 and a transmission assembly 200 and a guide assembly 300 disposed on the seat body 100. The transmission assembly 200 is disposed at one end of the seat body 100 and includes at least two transmission wheels 210, which are arranged side by side along the width direction of the seat body 100. The guide assembly 300 is disposed at the other end of the seat body 100, and a guide wheel 310 is provided on the seat body 100. The guide wheel 310 is connected to the guide assembly 300.

[0031] Therefore, by arranging at least two drive pulleys 210 side by side, with each pulley 210 contacting the belt and the belt wound around both pulleys 210, the multiple pulleys 210 allow the belt to spread out at a larger angle during transmission compared to a single pulley 210, thereby increasing the gap between the belts. In other words, by increasing the number of drive pulleys 210 and changing their arrangement, the gap between the belts is increased, preventing contact and wear between the belt and the guide assembly 300.

[0032] In some embodiments, the transmission assembly 200 further includes a movable plate 220, which is disposed on the base 100 and slidably connected to the base 100. Two transmission wheels 210 are both disposed on the movable plate 220. The movable plate 220 can move along the length of the base 100. When it is necessary to adjust the belt tension or change the relative position of the transmission wheels 210 with other components, the movable plate 220 is pushed to move along the length of the base 100. After adjusting to a suitable position, the movable plate 220 is fixed. By flexibly adjusting the position of the movable plate 220 to drive the transmission wheels 210 to move synchronously, the position of the transmission wheels 210 can be adjusted to adjust the belt tension or the connection position with other components, thereby ensuring the stability of the belt drive.

[0033] In some embodiments, a first adjusting bolt 400 is also provided inside the base 100, and the first adjusting bolt 400 is threadedly connected to one end of the sliding plate. When it is necessary to adjust the position of the transmission wheel 210, the first adjusting bolt 400 is rotated. Since the bolt is threadedly connected to the movable plate 220, the rotation of the bolt is converted into a linear movement of the movable plate 220 along the length direction of the base 100. That is, by changing the direction of rotation, the movable plate 220 will move back and forth along the length direction of the base 100. After reaching the desired position, the rotation is stopped, and the sliding plate can be fixed, thereby realizing the adjustment of the position of the transmission wheel 210. Therefore, the position adjustment is achieved by rotating the first adjusting bolt 400 to move the movable plate 220 back and forth along the length direction of the base 100, which is convenient to operate and improves the adjustment efficiency.

[0034] Furthermore, to facilitate the adjustment of the distance between the two transmission wheels 210, the movable plate 220 is also provided with a movable block 240 and a fixing bolt 250. The transmission wheels 210 are mounted on the movable block 240, which has an oblong hole 241. One end of the fixing bolt 250 passes through the oblong hole 241 and is fixedly connected to the movable plate 220. It can be understood that the oblong hole 241 is a hole with two parallel sides and two curved sides.

[0035] In actual assembly, two movable blocks 240 are set, and each movable block 240 is fixedly equipped with a transmission wheel 210, as shown in the figure. Figure 7 After fixing the movable block 240 to the movable plate 220 using the fixing bolts 250, the two transmission wheels 210 are at the initial distance. Loosening the fixing bolts 250 allows the movable block 240 to move within the range of the oblong hole 241. Since the transmission wheels 210 are mounted on the movable block 240, moving the movable block 240 will cause the transmission wheels 210 to move together, thereby changing the distance between the two transmission wheels 210. (Continue referring to...) Figure 7 and combined Figure 8When it is necessary to increase the spacing of the transmission wheels 210, move one or both of the movable blocks 240 outwards; conversely, move the movable blocks 240 inwards. After the spacing of the transmission wheels 210 is adjusted to the appropriate position, tighten the corresponding fixing bolts 250 on the movable blocks 240 and re-fix the movable blocks 240 onto the movable plate 220. The structure is simple and easy to adjust, which improves the versatility of the transmission assembly 200 and allows for flexible adjustment to adapt to the size and specifications of other assemblies.

[0036] During belt drive, the belt exerts a drag force on the drive pulley 210, which can easily cause the drive pulley 210 to warp and deform, leading to poor contact between the belt and the drive pulley 210 and accelerated wear. Therefore, in some embodiments, the movable plate 220 is also provided with a pressure plate 230. One end of the pressure plate 230 is fixed to the movable block 240, and the other end of the pressure plate 230 abuts against the top of the drive pulley 210. By providing the pressure plate 230, the upward tendency of the drive pulley 210 caused by the drag force is suppressed. In other words, the pressure plate 230 can restrict the movement of the drive pulley 210, prevent the drive pulley 210 from warping and deforming due to the drag force of the belt, extend the service life of the drive pulley 210 and the belt, and further improve the stability of the transmission system.

[0037] In some embodiments, the guide assembly 300 further includes a movable plate 320 and a movable piece 330. The movable plate 320 is disposed on the base 100 and slidably connected to the base 100. The movable piece 330 is disposed above the movable plate 320 and slidably connected to the movable plate 320. The movable piece 330 is disposed above the movable plate 320. Guide wheels 310 are provided at both ends of the movable plate 320, and guide grooves 321 are provided on the movable plate 320. A guide post 331 is provided at the bottom of the movable piece 330 and is inserted into the guide groove 321. When it is necessary to adjust the position of the guide wheel 310, the movable piece 330 is pushed. When the movable piece 330 moves, the guide post 331 at the bottom of the movable piece 330 slides in the guide groove 321 of the movable plate 320, forming a sliding connection, thereby driving the movable plate 320 to move and guiding the movable plate 320 to move in a predetermined direction, thereby realizing the adjustment of the position of the guide wheel 310.

[0038] Similarly, a second adjusting bolt 500 is also provided inside the base 100, and the second adjusting bolt 500 is threadedly connected to the movable plate 320. By rotating the second adjusting bolt 500, the movable plate 320 is moved, and the movable plate 320 moves along the length of the base 100, thereby adjusting the position of the guide wheel 310.

[0039] In some embodiments, a fastener 600 is also included. A fixing hole 101 is provided on the base 100, and the fastener 600 is threadedly connected to the fixing hole 101. The tail end of the fastener 600 has a protrusion 601. During assembly, the fastener 600 is threadedly connected to the fixing hole 101 on the base 100. When the transmission wheel seat is installed on the mounting rail 700, the fastener 600 is screwed in, causing it to move downwards. As the fastener 600 is screwed in, the protrusion 601 contacts the mounting rail 700. The tapered protrusion 601 deforms at its contact surface with the mounting rail 700, increasing friction. This fixes the transmission wheel seat on the mounting rail 700, preventing displacement of the transmission wheel seat when subjected to vibration and ensuring its stability.

[0040] In related technical solutions, plugs or end caps are usually installed at both ends of the seat 100 to enhance structural stability, which requires additional components to close the end openings for assembly, making it inconvenient to use. Therefore, in some embodiments, the seat 100 has downward-facing folded edges 110 at both ends, with the outer end face of each folded edge 110 flush with the end face of the seat 100. This eliminates the need for additional plugs at both ends of the seat 100. Simultaneously, the folded edges 110 increase the structural stability of the seat 100's ends, preventing the frame from gradually deforming under belt drag during transmission, thus improving the overall stability of the transmission wheel seat. Therefore, the folded edges 110 at both ends of the seat 100 serve as a substitute for plugs, not only improving the bending and deformation resistance of the seat 100's ends but also simplifying the overall structure of the seat 100.

[0041] Furthermore, the folded edge 110 is provided with two connecting holes 111, which are respectively used to connect with the first adjusting bolt 400 or the second adjusting bolt 500. During installation and adjustment, the first adjusting bolt 400 or the second adjusting bolt 500 connects to the folded edge 110 through the connecting holes 111, which facilitates the adjustment and fixing of the transmission wheel seat. Therefore, the stability of the transmission wheel seat is improved, while the internal structure is simplified, and the convenience of installation and maintenance is enhanced.

[0042] Reference Figure 9 As shown in the connection structure, the second aspect of this application also provides a linkage sliding door, which includes a mounting rail 700 and a belt (not shown in the figure), and also includes a transmission wheel seat as described above, wherein the transmission wheel seat is mounted on the mounting rail 700, and the belt is connected to the transmission wheel 210. The linkage sliding door disclosed in this application, due to having the aforementioned transmission wheel seat, possesses all the technical effects of the aforementioned transmission wheel seat, which will not be elaborated upon here.

[0043] Furthermore, certain terms in this specification have been used to describe embodiments of this specification. For example, "an embodiment," "an embodiment," and / or "some embodiments" mean that a particular feature, structure, or characteristic described in connection with that embodiment may be included in at least one embodiment of this specification. Therefore, it is to be emphasized and understood that two or more references to "an embodiment" or "an embodiment" in various parts of this specification do not necessarily refer to the same embodiment. Moreover, specific features, structures, or characteristics may be appropriately combined in one or more embodiments of this specification.

[0044] The preferred embodiments of this application have been described in detail above, but this application is not limited to the embodiments described. Without departing from the spirit and scope of this specification, those skilled in the art can make equivalent modifications or alternative configurations based on the embodiments in this specification to implement the application in this specification. These equivalent modifications or alternatives are all included within the scope defined by the claims of this application.

Claims

1. A transmission wheel seat, characterized in that: include: base(100); A transmission assembly (200) is disposed at one end of the seat (100), the transmission assembly (200) includes at least two transmission wheels (210), the two transmission wheels (210) are arranged side by side along the width direction of the seat (100); A guide assembly (300) is provided at the other end of the seat (100), and a guide wheel (310) is provided on the seat (100), the guide wheel (310) being connected to the guide assembly (300).

2. The transmission wheel seat according to claim 1, characterized in that: The transmission assembly (200) further includes a movable plate (220), which is disposed on the seat (100) and slidably connected to the seat (100). Two transmission wheels (210) are disposed on the movable plate (220).

3. The transmission wheel seat according to claim 2, characterized in that: The seat (100) is also provided with a first adjusting bolt (400), which is threaded to one end of the movable plate (220).

4. The transmission wheel seat according to claim 2, characterized in that: The movable plate (220) is also provided with a movable block (240) and a fixing bolt (250). The transmission wheel (210) is located on the movable block (240). The movable block (240) is provided with a waist-shaped hole (241). One end of the fixing bolt (250) passes through the waist-shaped hole (241) and is fixedly connected to the movable plate (220).

5. The transmission wheel seat according to claim 4, characterized in that: The movable plate (220) is also provided with a pressure plate (230), one end of which is fixed to the movable block (240), and the other end of which abuts against the top of the transmission wheel (210).

6. The transmission wheel seat according to claim 1, characterized in that: The guide assembly (300) further includes a movable plate (320) and a movable piece (330). The movable plate (320) is disposed on the base (100) and is slidably connected to the base (100). The movable piece (330) is disposed above the movable plate (320) and is slidably connected to the movable plate (320). The movable plate (320) has guide wheels (310) at both ends and a guide groove (321) on the movable plate (320). The movable piece (330) has a guide post (331) at the bottom and the guide post (331) is connected to the guide groove (321).

7. The transmission wheel seat according to claim 6, characterized in that: The seat (100) is also provided with a second adjusting bolt (500), which is threadedly connected to the movable plate (320).

8. The transmission wheel seat according to claim 1, characterized in that: It also includes a fastener (600), the base (100) is provided with a fixing hole (101), the fastener (600) is threadedly connected to the fixing hole (101), and the tail end of the fastener (600) has a protrusion (601).

9. The transmission wheel seat according to claim 1, characterized in that: The base (100) has downward folded edges (110) at both ends, and the outer end face of each folded edge (110) is flush with the end face of the base (100).

10. A type of linked sliding door, characterized in that: It includes a mounting rail (700) and a belt, and also includes a drive wheel (210) seat as described in any one of claims 1-9, the drive wheel (210) seat being mounted on the mounting rail (700), and the belt being connected to the drive wheel.