A cross trolley track butt joint positioning and locking mechanism
Patent Information
- Application Number
- CN202522604739.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-09
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-12-09
AI Technical Summary
[0005]为了弥补以上不足，本实用新型提供了一种横穿小车轨道对接定位锁定机构，旨在解决了现有技术中缺乏有效的防松制动装置的问题
[0026]1、本实用新型中，通过锥形块与防滑胶套的配合结构，在夹块夹紧轨道后，锥形块与防滑胶套紧密接触产生高摩擦力，有效限制对向螺纹杆的自主转动，相较于传统螺纹自锁或螺母紧固方式，防松失效概率大幅降低，显著提升轨道夹紧后的长期稳定性，避免因振动、冲击等工况导致的夹块松动问题。
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Figure CN224899949U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of track docking, and in particular to a docking, positioning and locking mechanism for traversing a trolley track. Background Technology
[0002] In industrial production, logistics and transportation, and automated warehousing, the docking accuracy and locking stability of the track traversing the trolley directly affect the equipment's operating efficiency and safety performance. As the core component connecting two track sections, the track docking mechanism must simultaneously meet multiple requirements, including clamping firmness, adjustable spacing, and ease of operation, to adapt to track laying and maintenance operations under different working conditions.
[0003] In existing track docking technologies, clamping mechanisms mostly adopt a structure in which a single threaded rod drives a clamping block, relying on the self-locking principle of the thread to prevent loosening.
[0004] However, under long-term vibration or load variation conditions, such designs often lack an effective anti-loosening braking device, causing the threaded rod to rotate on its own, which in turn causes the clamping block to loosen, resulting in insufficient clamping force. To address this issue, a cross-track docking and positioning locking mechanism is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above deficiencies, this utility model provides a docking and positioning locking mechanism that crosses the trolley track, aiming to solve the problem of the lack of an effective anti-loosening braking device in the prior art.
[0006] To achieve the above objectives, this utility model adopts the following technical solution: a docking, positioning, and locking mechanism for traversing a trolley track, comprising a left positioning frame, an auxiliary telescopic rod fixedly connected to the bottom right side of the left positioning frame, a right positioning frame slidably connected to the outer wall of the auxiliary telescopic rod, clamping frames fixedly connected to the bottom of both the left and right positioning frames, two sets of connecting plates slidably connected to the inner wall of the bottom of the clamping frames, clamping blocks fixedly connected to the bottom of the left and right sides of the two sets of connecting plates, a threaded rod base fixedly connected to the bottom of the clamping frames, a counter-threaded rod rotatably connected to the inner wall of the threaded rod base, an anti-slip rubber sleeve fixedly connected to the inner wall of the threaded rod base, and a conical block fixedly connected to the outer arc surface of the middle part of the counter-threaded rod.
[0007] As a further description of the above technical solution:
[0008] An upper telescopic rod is fixedly connected to the top right side of the left positioning frame. A rack is fixedly connected to the bottom of the upper telescopic rod. A gear meshes with the inner side of the outer wall of the rack. A rotating shaft is fixedly connected to the middle of the gear. A limit guide block is elastically connected to the inner wall of the rotating shaft through a limit spring. A handle is fixedly connected to the outer end of the limit guide block. Limit blocks are fixedly connected to both the upper and lower ends of the back of the handle. A limit groove is opened on the outer wall of the front part of the right positioning frame.
[0009] As a further description of the above technical solution:
[0010] The outer wall of the opposing threaded rod is threaded onto the inner wall of the middle part of the connecting plate.
[0011] As a further description of the above technical solution:
[0012] The conical block comes into contact with the inner wall of the anti-slip rubber sleeve.
[0013] As a further description of the above technical solution:
[0014] The top of the clamping block contacts the bottom of the clamping frame.
[0015] As a further description of the above technical solution:
[0016] The upper telescopic rod is slidably connected to the inner wall of the right positioning frame.
[0017] As a further description of the above technical solution:
[0018] The gear is rotatably connected to the inner wall of the right positioning frame, and the rotating shaft is rotatably connected to the inner wall of the right positioning frame.
[0019] As a further description of the above technical solution:
[0020] One end of the limiting spring is fixedly connected to the inner wall of the rotating shaft, and the other end of the limiting spring is fixedly connected to the end of the limiting guide block.
[0021] As a further description of the above technical solution:
[0022] The limiting guide block is slidably connected to the inner wall of the rotating shaft, and the back of the grip is in contact with the front of the right positioning frame.
[0023] As a further description of the above technical solution:
[0024] The limiting block is engaged with the inner wall of the limiting groove.
[0025] This utility model has the following beneficial effects:
[0026] 1. In this utility model, through the cooperative structure of the conical block and the anti-slip rubber sleeve, after the clamping block clamps the track, the conical block and the anti-slip rubber sleeve are in close contact to generate high friction, which effectively restricts the autonomous rotation of the opposing threaded rod. Compared with the traditional thread self-locking or nut fastening method, the probability of anti-loosening failure is greatly reduced, significantly improving the long-term stability after the track is clamped, and avoiding the problem of clamping block loosening caused by vibration, impact and other working conditions.
[0027] 2. In this utility model, the rotational motion is converted into linear motion through the gear and rack meshing transmission structure. With the dual guidance of the telescopic rod and the auxiliary telescopic rod, the track docking error is reduced. At the same time, the locking design of the limit block and the multi-position limit groove can quickly complete the locking of different spacings. The operation can be completed by a single person. Attached Figure Description
[0028] Figure 1 A three-dimensional schematic diagram of the left and right positioning frames of a docking, positioning, and locking mechanism that crosses a trolley track, as proposed in this utility model.
[0029] Figure 2 This is a three-dimensional cross-sectional view of the right positioning frame of a docking, positioning, and locking mechanism that crosses a trolley track, as proposed in this utility model.
[0030] Figure 3 This is a three-dimensional cross-sectional view of the threaded rod base of a docking, positioning, and locking mechanism that crosses a trolley track, as proposed in this utility model.
[0031] Figure 4 This utility model proposes a docking, positioning, and locking mechanism for traversing a trolley track. Figure 2 Enlarged 3D schematic diagram of part A.
[0032] Legend:
[0033] 1. Left positioning frame; 2. Auxiliary telescopic rod; 3. Right positioning frame; 4. Clamping frame; 5. Connecting plate; 6. Clamping block; 7. Opposing threaded rod; 8. Threaded rod base; 9. Anti-slip rubber sleeve; 10. Conical block; 11. Upper telescopic rod; 12. Rack; 13. Gear; 14. Rotating shaft; 15. Limiting spring; 16. Limiting guide block; 17. Handle; 18. Limiting block; 19. Limiting groove. Detailed Implementation
[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0035] Reference Figures 1-3This utility model provides an embodiment of a docking, positioning, and locking mechanism that traverses a trolley track. It includes a left positioning frame 1, which serves as the basic load-bearing component on the left side of the mechanism. Its structural design must meet the requirements for stable connection with other components, providing left-side support and positioning for the overall mechanism. An auxiliary telescopic rod 2 is fixedly connected to the bottom right side of the left positioning frame 1. The auxiliary telescopic rod 2 provides auxiliary support and guidance when the left positioning frame 1 and the right positioning frame 3 move relative to each other, preventing misalignment during adjustment. Its fixed connection ensures the robustness of the connection with the left positioning frame 1. The right positioning frame 3 is slidably connected to the outer wall of the auxiliary telescopic rod 2. This sliding connection structure allows the right positioning frame 3 to move flexibly along the axial direction of the auxiliary telescopic rod 2, thereby achieving… The distance between the left positioning frame 1 and the right positioning frame 3 can be adjusted to accommodate the docking requirements of tracks of different lengths. Both the left and right positioning frames 1 and 3 have clamping frames 4 fixedly connected to their bottoms. Clamping frames 4, as intermediate components connecting the left and right positioning frames 1 and 3 to the clamping blocks 6, ensure stability of the connection with the positioning frames through a fixed connection method, while providing space and support for the installation and movement of the clamping blocks 6. Two sets of connecting plates 5 are slidably connected to the inner bottom wall of the clamping frame 4. The two sets of connecting plates 5 are symmetrically distributed on the inner bottom wall of the clamping frame 4. The sliding connection design allows the connecting plates 5 to move horizontally within the clamping frame 4, thereby driving the clamping blocks 6 to clamp or release the track. Clamping blocks 6 are fixedly connected to the bottom of both sides of the two sets of connecting plates 5. The clamping blocks 6 directly contact the track, and their fixing... The design connecting to the bottom of the connecting plate 5 ensures synchronization with the movement of the connecting plate 5, and the shape and material of the clamping block 6 can be adapted according to the specific structure of the track to enhance the clamping effect. A threaded rod base 8 is fixedly connected to the bottom of the clamping frame 4, providing a stable mounting foundation for the opposing threaded rod 7. This fixed connection ensures that it will not shift during the rotation of the threaded rod, guaranteeing the stability of the overall adjustment structure. The opposing threaded rod 7 is rotatably connected to the inner wall of the threaded rod base 8. The rotation of the opposing threaded rod 7 can drive the connecting plates 5 on both sides to move in relative or opposite directions. This rotatable connection allows for flexible rotation, providing power transmission for the adjustment of the clamping block 6. An anti-slip rubber sleeve 9 is fixedly connected to the inner wall of the threaded rod base 8. The anti-slip rubber sleeve 9 uses a... Made of a material with a certain degree of elasticity and friction, it is fixedly connected to the inner wall of the threaded rod base 8. It can generate sufficient friction when the conical block 10 contacts it, thus playing a braking role. The conical block 10 is fixedly connected to the outer arc surface of the middle part of the opposing threaded rod 7. The conical block 10 rotates synchronously with the opposing threaded rod 7. Its conical structure design allows it to increase friction by squeezing when in contact with the anti-slip rubber sleeve 9, thereby restricting the rotation of the opposing threaded rod 7. The outer wall of the opposing threaded rod 7 is threadedly connected to the inner wall of the middle part of the connecting plate 5. This threaded connection method converts the rotational motion of the opposing threaded rod 7 into the linear motion of the connecting plate 5. The spiral direction design of the thread ensures that the two connecting plates 5 can move in opposite or relative directions. The conical block 10 contacts the inner wall of the anti-slip rubber sleeve 9.The friction generated between the two components in contact effectively prevents the rotation of the opposing threaded rod 7 in the non-adjusted state, ensuring the stability of the clamping block 6 after clamping the track and preventing loosening. The top of the clamping block 6 contacts the bottom of the clamping frame 4. This contact relationship provides a certain limit and guide for the movement of the clamping block 6, preventing it from shifting vertically during movement and ensuring that it always moves stably in the horizontal direction.
[0036] Reference Figure 1 , Figure 2 , Figure 4An upper telescopic rod 11 is fixedly connected to the top right side of the left positioning frame 1. The upper telescopic rod 11 cooperates with the auxiliary telescopic rod 2, guiding and supporting the relative movement of the left positioning frame 1 and the right positioning frame 3 from the top. Its fixed connection to the top right side of the left positioning frame 1 ensures its positional stability. A rack 12 is fixedly connected to the bottom of the upper telescopic rod 11. The fixed connection of the rack 12 ensures that it moves synchronously with the upper telescopic rod 11. The meshing transmission between the rack 12 and the gear 13 provides a precise transmission method for adjusting the distance between the left positioning frame 1 and the right positioning frame 3. The gear 13 meshes with the inner side of the outer wall of the rack 12. The rotation of the gear 13, through meshing with the rack 12, drives the rack 12 to move, thereby realizing the extension and retraction of the upper telescopic rod 11. This type of meshing transmission features a stable transmission ratio and high precision. A rotating shaft 14 is fixedly connected to the middle of gear 13, providing the origin for gear 13's rotation. This fixed connection ensures synchronous rotation between gear 13 and rotating shaft 14, allowing external force to be transmitted to gear 13 via rotating shaft 14. A limiting guide block 16 is elastically connected to the inner wall of rotating shaft 14 via a limiting spring 15. The elasticity of the limiting spring 15 allows the limiting guide block 16 to extend and retract flexibly within the inner wall of rotating shaft 14, while also providing elastic pressure for the limiting block 18 to engage with the limiting groove 19, ensuring a stable engagement. A handle 17 is fixedly connected to the outer end of the limiting guide block 16, facilitating the operator's grip and application of external force. The force is then transmitted to the rotating shaft 13 via the limiting guide block 16. Shaft 14 enables the rotation adjustment of gear 13. The fixed connection ensures reliable force transmission. Limit blocks 18 are fixedly connected to both the upper and lower ends of the back of handle 17. The cooperation between the limit blocks 18 and the limit grooves 19 locks the rotational position of handle 17 and shaft 14. The fixed connection to the back of handle 17 ensures synchronous movement with handle 17, achieving precise engagement. Limit grooves 19 are provided on the outer front wall of the right positioning frame 3. These grooves are distributed at certain intervals, providing multiple engagement positions for the limit blocks 18, thus achieving locking at different distances between the left positioning frame 1 and the right positioning frame 3 to meet different docking requirements. The upper telescopic rod 11 is slidably connected to the inner wall of the right positioning frame 3. This sliding connection allows the upper telescopic rod 11 to... The lever 17 extends and retracts flexibly within the right positioning frame 3, working in conjunction with the auxiliary telescopic rod 2 to achieve smooth movement and positioning of the left positioning frame 1 and the right positioning frame 3. The gear 13 is rotatably connected to the inner wall of the right positioning frame 3, and the rotating shaft 14 is rotatably connected to the inner wall of the right positioning frame 3. One end of the limiting spring 15 is fixedly connected to the inner wall of the rotating shaft 14, and the other end of the limiting spring 15 is fixedly connected to the end of the limiting guide block 16. The fixed connection at both ends ensures that the spring can stably apply elastic force to the limiting guide block 16, ensuring reliable engagement and disengagement of the limiting block 18 and the limiting groove 19. The limiting guide block 16 is slidably connected to the inner wall of the rotating shaft 14. The back of the handle 17 contacts the front of the right positioning frame 3, and the limiting block 18 is engaged with the inner wall of the limiting groove 19.
[0037] Working principle: When positioning the track, rotating the opposing threaded rod 7 causes the rotational motion of the opposing threaded rod 7 to be converted into relative linear motion of the two sets of connecting plates 5 along the inner wall of the bottom of the clamping frame 4, since the outer wall of the opposing threaded rod 7 is threadedly connected to the inner wall of the two sets of connecting plates 5. The clamping blocks 6 fixed at the bottom of the two sets of connecting plates 5 move synchronously with the connecting plates 5. When the clamping blocks 6 contact the outer wall of the track and continue to move until they are tightly fitted, the track is clamped. During this process, the top of the clamping block 6 contacts the bottom of the clamping frame 4. This contact relationship limits and guides the clamping block 6, preventing it from shifting vertically and ensuring stable clamping direction. During the rotation of the opposing threaded rod 7, the conical block 10 fixed on its outer arc surface rotates synchronously. After the clamping block 6 clamps the track, the conical block 10 is in close contact with the anti-slip rubber sleeve 9 fixed to the inner wall of the threaded rod base 8. The anti-slip rubber sleeve 9 is made of a highly elastic and high-friction material. The friction generated by the contact between the two restricts the autonomous rotation of the opposing threaded rod 7, preventing the clamping block 6 from loosening in the non-adjusted state and ensuring the stability of the track after clamping.
[0038] When adjusting the distance between the two sets of tracks, the operator grips handle 17 and pulls it outward. Handle 17 drives the limiting guide block 16 to slide along the inner wall of the rotating shaft 14, while simultaneously stretching the limiting spring 15. At this time, the limiting block 18 on the back of handle 17 disengages from the limiting groove 19 on the front outer wall of the right positioning frame 3, releasing the lock on the rotation of the rotating shaft 14. Rotating handle 17 again causes the rotating shaft 14 to rotate synchronously through the limiting guide block 16, and the gear 13 fixed in the middle of the rotating shaft 14 rotates accordingly. Since gear 13 meshes with the rack 12 fixed at the bottom of the upper telescopic rod 11, the rotational motion of gear 13 is converted into the linear motion of rack 12, which in turn drives the upper telescopic rod 11 to slide along the inner wall of the right positioning frame 3. At the same time, the auxiliary telescopic rod 2 at the bottom right side of the left positioning frame 1 slides synchronously along the outer wall of the right positioning frame 3, together with the upper telescopic rod 11, to provide guidance and support for the relative movement of the left positioning frame 1 and the right positioning frame 3, preventing deviation. When the distance between the left positioning frame 1 and the right positioning frame 3 is adjusted to the size of the matching track, the handle 17 is released, the limit spring 15 returns to its elastic deformation, pushes the limit guide block 16 and the handle 17 to reset outward, so that the limit block 18 on the back of the handle 17 is inserted into the corresponding limit groove 19, thereby realizing the rotation lock of the rotating shaft 14 and the gear 13, and thus fixing the relative position of the left positioning frame 1 and the right positioning frame 3.
[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A docking, positioning, and locking mechanism for traversing a trolley track, comprising a left positioning frame (1), characterized in that: An auxiliary telescopic rod (2) is fixedly connected to the bottom right side of the left positioning frame (1). A right positioning frame (3) is slidably connected to the outer wall of the auxiliary telescopic rod (2). A clamping frame (4) is fixedly connected to the bottom of both the left positioning frame (1) and the right positioning frame (3). Two sets of connecting plates (5) are slidably connected to the inner wall of the bottom of the clamping frame (4). Clamping blocks (6) are fixedly connected to the bottom of both sides of the two sets of connecting plates (5). A threaded rod base (8) is fixedly connected to the bottom of the clamping frame (4). A counter-threaded rod (7) is rotatably connected to the inner wall of the threaded rod base (8). An anti-slip rubber sleeve (9) is fixedly connected to the inner wall of the threaded rod base (8). A conical block (10) is fixedly connected to the outer arc surface of the middle part of the counter-threaded rod (7).
2. The docking, positioning, and locking mechanism for traversing a trolley track according to claim 1, characterized in that: The upper telescopic rod (11) is fixedly connected to the top right side of the left positioning frame (1), and a rack (12) is fixedly connected to the bottom of the upper telescopic rod (11). A gear (13) meshes with the inner side of the outer wall of the rack (12). A rotating shaft (14) is fixedly connected to the middle of the gear (13). A limiting guide block (16) is elastically connected to the inner wall of the rotating shaft (14) through a limiting spring (15). A handle (17) is fixedly connected to the outer end of the limiting guide block (16). Limiting blocks (18) are fixedly connected to both the upper and lower ends of the back of the handle (17). A limiting groove (19) is opened on the outer wall of the front part of the right positioning frame (3).
3. The docking, positioning, and locking mechanism for traversing a trolley track according to claim 1, characterized in that: The outer wall of the opposing threaded rod (7) is threaded to the inner wall of the middle part of the connecting plate (5).
4. The docking, positioning, and locking mechanism for traversing a trolley track according to claim 1, characterized in that: The conical block (10) is in contact with the inner wall of the anti-slip rubber sleeve (9).
5. The docking, positioning, and locking mechanism for traversing a trolley track according to claim 1, characterized in that: The top of the clamping block (6) is in contact with the bottom of the clamping frame (4).
6. The docking, positioning, and locking mechanism for traversing a trolley track according to claim 2, characterized in that: The upper telescopic rod (11) is slidably connected to the inner wall of the right positioning frame (3).
7. The docking, positioning, and locking mechanism for traversing a trolley track according to claim 2, characterized in that: The gear (13) is rotatably connected to the inner wall of the right positioning frame (3), and the rotating shaft (14) is rotatably connected to the inner wall of the right positioning frame (3).
8. The docking, positioning, and locking mechanism for traversing a trolley track according to claim 2, characterized in that: One end of the limiting spring (15) is fixedly connected to the inner wall of the rotating shaft (14), and the other end of the limiting spring (15) is fixedly connected to the end of the limiting guide block (16).
9. A docking, positioning, and locking mechanism for traversing a trolley track according to claim 2, characterized in that: The limiting guide block (16) is slidably connected to the inner wall of the rotating shaft (14), and the back of the grip (17) is in contact with the front of the right positioning frame (3).
10. A docking, positioning, and locking mechanism for traversing a trolley track according to claim 2, characterized in that: The limiting block (18) is engaged with the inner wall of the limiting groove (19).