Lining trolley reel locking device
By designing a liner trolley winding locking device, which utilizes the meshing of a rack and pinion with a drive gear and a connecting rod slot, the problem of liner components sticking together during transportation is solved, enabling rapid locking and unlocking and improving production efficiency.
Patent Information
- Application Number
- CN202520241673.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-02-17
AI Technical Summary
The lack of an effective locking device for the inner lining trolley reel in the existing technology causes the inner lining components to easily stick together during transportation, affecting production efficiency.
A locking device for the inner lining trolley reel was designed. The locking is achieved by the meshing of the rack and drive gear and the support of the compression spring. The unlocking is achieved by the connecting rod being inserted into the slot. The structure is simple and easy to operate.
It enables rapid locking and unlocking of inner lining components, preventing adhesion and improving production efficiency.
Smart Images

Figure CN223657665U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of tire production auxiliary equipment, specifically to a liner trolley reel locking device. Background Technology
[0002] The inner liner is one of the important components for ensuring the airtightness of the tire. The tooling used for inner liner winding carries the important task of material storage and circulation. First, the inner liner trolley needs to be responsible for the winding task on the inner liner production machine. The produced inner liner components are wound into the trolley. After the trolley is transported to the forming machine, the forming machine will unwind the wound inner liner components and finally bond them with other tire components.
[0003] To prevent components from sticking together, nylon pads are used to be wound up simultaneously with the material to isolate the components from each other. After the inner lining trolley is wound up, the reel of the inner lining tooling trolley needs to be locked. Therefore, there is an urgent need to develop an inner lining trolley reel locking device. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a liner trolley reel locking device.
[0005] The technical solution of this utility model is: a liner trolley reel locking device, including an upper base plate, a fixed base, a compression spring, a lower base plate and a connecting rod. One end of the upper base plate is rotatably mounted on the trolley, and a rack is fixedly mounted on its upper side. The rack is adapted to the drive gear at the end of the reel. The fixed base is fixed on the trolley and located below the upper base plate. The upper and lower ends of the compression spring are respectively connected to the bottom of the upper base plate and the top of the fixed base. When locked, the rack meshes with the drive gear at the end of the reel under the support of the compression spring.
[0006] One end of the connecting rod is rotatably mounted on the upper base plate, and the other end is provided with a limiting rod; the lower base plate is mounted on the fixed base, and one end of it is provided with a slot that matches the connecting rod; when the connecting rod is engaged in the slot of the lower base plate, the rack separates from the drive gear at the end of the roller.
[0007] Preferably, the limiting rod is set horizontally.
[0008] Preferably, the bottom plate slot end is bent downwards.
[0009] Compared with the prior art, this utility model has the following advantages:
[0010] This device has a simple structure and is easy to operate. With the support of the compression spring, the rack and the drive gear at the end of the spool can be engaged to lock the spool. By pressing down the upper base plate, the connecting rod can be locked into the slot of the lower base plate to achieve quick unlocking. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the trolley's structure;
[0012] Figure 2 This is a schematic diagram of the structure of this utility model;
[0013] Figure 3 This is a structural diagram of the connecting rod and the bottom plate.
[0014] In the diagram: 1. Trolley, 2. Drive gear, 3. Upper base plate, 4. Rack, 5. Fixed base, 6. Compression spring, 7. Connecting rod, 8. Limiting rod, 9. Lower base plate, 901. Slot. Detailed Implementation
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example 1
[0016] Reference Figure 1-2 As shown, a liner trolley 1 reel locking device includes an upper base plate 3, a fixed base 5, a compression spring 6, a lower base plate 9, and a connecting rod 7. One end of the upper base plate 3 is rotatably mounted on the trolley 1, and a rack 4 is fixedly mounted on its upper side. The rack 4 is adapted to the drive gear 2 at the end of the reel. The fixed base 5 is fixed on the trolley 1 and located below the upper base plate 3. The upper and lower ends of the compression spring 6 are respectively connected to the bottom of the upper base plate 3 and the top of the fixed base 5. When locked, the rack 4 meshes with the drive gear 2 at the end of the reel under the support of the compression spring 6.
[0017] One end of the connecting rod 7 is rotatably mounted on the upper base plate 3, and the other end is provided with a horizontally set limiting rod 8; the lower base plate 9 is mounted on the fixed base 5, and one end of it is provided with a slot 901 that is compatible with the connecting rod 7; when the connecting rod 7 is engaged in the slot 901 of the lower base plate 9, the rack 4 separates from the drive gear 2 at the end of the roller.
[0018] More detailed, such as Figure 3 As shown, to prevent the connecting rod 7 from accidentally coming out of the slot 901, the end of the slot 901 on the bottom plate 9 is bent downwards.
[0019] In use, the connecting rod 7 is unlocked by pressing down the upper base plate 3 and locking it into the slot 901 of the lower base plate 9. After the trolley 1 is used, the connecting rod 7 is disengaged from the slot 901 of the lower base plate 9 by pressing down the upper base plate 3 slightly. Then, the rack 4 returns to its initial position due to the elastic force of the compression spring 6, thereby locking the roller drive gear 2.
[0020] This device has a simple structure and is easy to operate. Under the support of the compression spring 6, the rack 4 meshes with the drive gear 2 at the end of the roll to lock the roll. By pressing down the upper base plate 3, the connecting rod 7 can be locked into the slot 901 of the lower base plate 9 to achieve quick unlocking.
[0021] This utility model is not limited to the above-described embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model, and the changed content still falls within the protection scope of this utility model.
Claims
1. A locking device for the inner lining trolley reel, characterized in that: The device includes an upper base plate, a fixed base, a compression spring, a lower base plate, and a connecting rod. One end of the upper base plate is rotatably mounted on a trolley, and a rack is fixedly mounted on its upper side. The rack is adapted to the drive gear at the end of the spool. The fixed base is fixed on the trolley and located below the upper base plate. The upper and lower ends of the compression spring are respectively connected to the bottom of the upper base plate and the top of the fixed base. When locked, the rack meshes with the drive gear at the end of the spool under the support of the compression spring. One end of the connecting rod is rotatably mounted on the upper base plate, and the other end is provided with a limiting rod; the lower base plate is mounted on the fixed base, and one end of it is provided with a slot that matches the connecting rod; when the connecting rod is engaged in the slot of the lower base plate, the rack separates from the drive gear at the end of the roller.
2. The liner trolley reel locking device according to claim 1, characterized in that: The limiting rod is set horizontally.
3. The inner lining trolley reel locking device according to claim 1, characterized in that: The bottom plate slot end bends downward.