Packing cup press-fitting device

By integrating the ring with the cylinder piston rod through a multi-head connection mechanism, the loosening problem caused by wear of the press-fit bracket is solved, enabling quick replacement and cost savings.

CN223864379UActive Publication Date: 2026-02-03NINGGUO HAI TIAN LI IND DEV
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Patent Information

Application Number
CN202423115844.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-17
Publication Date
2026-02-03
Estimated Expiration
2034-12-17

AI Technical Summary

Technical Problem

In existing leather cup pressing devices, the threaded section of the piston rod is prone to wear after repeated disassembly and assembly of the pressing frame, resulting in the inability to tighten, affecting the performance and causing material waste.

Method used

A multi-head connection mechanism is adopted, which integrates the ring and the cylinder piston rod through connecting studs, movable cylinder and connecting seat, so as to realize quick replacement of worn connecting studs and avoid replacing the entire piston rod.

Benefits of technology

It enables quick replacement of worn connecting studs, saving costs and avoiding the time, effort, and material waste caused by replacing the entire piston rod.

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Abstract

The utility model discloses a packing cup press-fitting device, which relates to the technical field of packing cup press-fitting and comprises a base and a supporting seat, a supporting barrel is arranged in the middle of the top surface of the base, a piston rod of an air cylinder penetrates into the inner side of the supporting seat, and a multi-head connecting mechanism is arranged between the piston rod of the air cylinder and a circular ring; through the arrangement of the multi-head connecting mechanism, the connecting ring is connected to the rod body of the connecting stud in a threaded and sleeved mode, the connecting stud, the movable barrel and the connecting base can serve as a medium to integrally connect the circular ring and the piston rod, and therefore it is guaranteed that when the air cylinder is started, the piston rod can press the circular ring; when a connecting stud which is originally in threaded connection with the connecting ring is seriously abraded, only the movable cylinder needs to be simply rotated to enable the connecting studs to rotate and replace, so that the abraded connecting studs can be quickly replaced, the connecting ring can be further connected and used in a short time, and compared with the prior art, the connecting ring is convenient to use. And the connecting ring is connected with the piston rod.
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Description

Technical Field

[0001] This utility model relates to the field of leather cup pressing technology, specifically to a leather cup pressing device. Background Technology

[0002] During the assembly of a car's hydraulic braking system, the cup needs to be fitted onto the hook. The cup and the hook are interference fit. The cup has high toughness and strength. During installation, workers usually use tools to fit the cup onto the hook. However, when workers apply force manually during installation, it is easy to cause uneven force on the cup, which can cause the cup to tilt when installed on the hook, affecting the overall braking system of the car.

[0003] The prior art patent publication number CN211192787U describes a leather cup pressing device. The patent supports the hook shell with a support cylinder and applies force to the leather cup with a pressing frame to install the leather cup on the hook shell. During the installation process, the leather cup is evenly stressed, which can prevent the leather cup from tilting.

[0004] The aforementioned patent mainly uses a threaded connection to fix the press-fit frame and the cylinder piston rod. Although this can ensure the stability between the two to a certain extent and facilitate the disassembly and assembly of the press-fit frame, the threaded section of the piston rod is easily worn after repeated disassembly and assembly of the press-fit frame. This leads to the press-fit frame being unable to be tightened onto the cylinder piston rod during later assembly, resulting in loosening during the press-fitting process and affecting the performance. As a result, the entire piston rod needs to be replaced, which is not only time-consuming and labor-intensive, but also causes serious material waste. Utility Model Content

[0005] To solve the above-mentioned technical problems, a cup pressing device is provided. This device solves the problem that in the prior art, after multiple disassemblies and reassemblies of the pressing frame, the threaded section of the piston rod is easily worn, which leads to the pressing frame being unable to be tightened onto the cylinder piston rod during later assembly. This results in loosening during the pressing process, affecting the performance. As a result, the entire piston rod needs to be replaced, which is not only time-consuming and labor-intensive, but also causes serious material waste.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a leather cup pressing device, comprising a base and a support seat fixed in an inverted L shape on one side of the base. A support cylinder for placing the hook and leather cup is provided in the middle of the top surface of the base. A ring for pressing the leather cup is slidably provided above the support cylinder. A cylinder for lifting and lowering the ring is vertically installed on the top of the support seat. A connecting ring is provided above the ring. The connecting ring is fixedly connected to the ring by several support rods. The piston rod of the cylinder passes through the inner side of the support seat and is provided with a multi-head connecting mechanism between it and the ring.

[0007] The multi-head connection mechanism includes a connecting seat fixed to the end of the cylinder piston rod in an inverted U-shape, a movable cylinder rotatably disposed on one side wall of the connecting seat, and a plurality of connecting studs distributed around the body of the movable cylinder. The connecting ring is threaded onto the rod of one of the connecting studs, and a locking block is fixed to one end of the connecting stud facing the movable cylinder. The movable cylinder has a movable insertion port adapted to the locking block on its cylinder wall, and the movable cylinder has an elastic positioning element for locking the locking block inside.

[0008] Preferably, the end of the movable cylinder rotatably passes through the connecting seat and is securely fitted with a locking gear. A positioning tooth is elastically slidably connected to one side wall of the connecting seat, and one end of the positioning tooth passes between two adjacent teeth of the locking gear.

[0009] Preferably, the elastic positioning member includes a movable piece that is slidably disposed inside the movable cylinder, a locking post is fixed on one side of the movable piece, and a fixing opening adapted to the locking post is provided on the locking block.

[0010] Preferably, the elastic positioning member further includes a push-pull rod arranged laterally in a T-shape on the outside of the connecting seat. The lateral section of the push-pull rod passes through the movable cylinder and is fixedly connected to the movable piece. A compression spring is sleeved on the rod body of the push-pull rod, and the two ends of the compression spring are fixedly connected to the end of the movable cylinder and the vertical section of the push-pull rod, respectively.

[0011] Preferably, a movable slider is fixed to the other end of the positioning tooth, and a sliding groove adapted to the movable slider is provided on the side wall of the connecting seat. A return spring is fixed between the movable slider and the inner wall of one side of the sliding groove.

[0012] Compared with the prior art, the advantages of this utility model are:

[0013] By using a multi-head connection mechanism, the connecting ring is threaded onto the connecting stud rod. The connecting stud, movable cylinder, and connecting seat act as an intermediary to connect the ring and piston rod as a single unit. This ensures that when the cylinder is opened, the piston rod can press the ring against it. If the ring is disassembled and reassembled multiple times, causing severe wear on the connecting stud that was originally threaded onto the connecting ring, the movable cylinder can be easily rotated to rotate and replace the multiple connecting studs. This allows for quick replacement of worn connecting studs, facilitating the reconnection and use of the connecting ring in a short time. Compared to existing technologies, this design establishes a connection between the connecting ring and the piston rod, avoiding the need to replace the entire cylinder piston rod and saving costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a partial structural diagram of the present invention;

[0016] Figure 3 This is a schematic diagram of the multi-head connection mechanism of this utility model;

[0017] Figure 4 This is a schematic diagram of the internal structure of the connecting seat and the movable cylinder of this utility model;

[0018] Figure 5 This utility model Figure 4 Schematic diagram of the structure at point A in the middle.

[0019] The numbers on the map are:

[0020] 1. Base; 2. Support cylinder; 3. Support seat; 4. Cylinder; 5. Ring; 6. Connecting ring; 7. Connecting seat; 8. Movable cylinder; 9. Connecting stud; 10. Locking gear; 11. Positioning tooth; 12. Movable slider; 13. Return spring; 14. Locking block; 15. Movable piece; 16. Locking post; 17. Push-pull rod; 18. Compression spring. Detailed Implementation

[0021] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0022] Reference Figure 1-5 As shown, a leather cup pressing device includes a base 1 and a support seat 3 fixed in an inverted L shape on one side of the base 1. A support cylinder 2 for placing the hook and leather cup is provided in the middle of the top surface of the base 1. A ring 5 for pressing the leather cup is slidably provided above the support cylinder 2. A cylinder 4 for lifting and lowering the ring 5 is vertically installed on the top of the support seat 3.

[0023] When using it, first place the hook shell on the support cylinder 2, then align the leather cup on the support cylinder 2, then turn on the cylinder 4 to control the ring 5 to move downward. In this way, the ring 5 can apply force evenly to the leather cup and push the leather cup downward so that the leather cup fits on the hook shell, preventing the leather cup from tilting after it is fitted on the hook shell.

[0024] In addition, referring to the prior art publication number CN211192787U, a leather cup pressing device, the above-mentioned document has fully disclosed the structural features and operating principles of the support cylinder 2, support base 3, cylinder 4 and ring 5, and has detailed the pressing action and operating steps of the ring 5 on the leather cup. As prior art is well known to the public, this case will not introduce it in detail. For details, please refer to the above-mentioned patent document.

[0025] Furthermore, referring to Figure 2 As shown, it is worth noting that a connecting ring 6 is provided above the ring 5, and the connecting ring 6 is fixedly connected to the ring 5 by several support rods.

[0026] Referring to the aforementioned prior art documents, the prior art achieves a fixed connection between the ring 5 and the piston rod of the cylinder 4 by threading the ring 5 onto the piston rod of the cylinder 4. Thus, when the cylinder 4 is opened, the piston rod of the cylinder 4 carries the ring 5 downward in sync to press the leather cup.

[0027] However, after repeated disassembly and assembly, the threaded section of the piston rod of the ring 5 is easily worn, which makes it impossible to tighten the connecting ring 6 onto the cylinder piston rod during later assembly. As a result, the ring 5 becomes loose during the pressing process, affecting the performance. Therefore, the entire piston rod needs to be replaced, which is not only time-consuming and labor-intensive, but also causes serious material waste.

[0028] Therefore, referring to Figure 2-5 As shown, it is worth noting that the piston rod of cylinder 4 passes through the inner side of support seat 3 and is provided with a multi-head connection mechanism between it and ring 5.

[0029] The multi-head connection mechanism includes a connecting seat 7 fixed in an inverted U-shape to the end of the piston rod of the cylinder 4, a movable cylinder 8 vertically rotatably disposed on one side wall of the connecting seat 7, and several connecting studs 9 distributed around the body of the movable cylinder 8. The connecting ring 6 is threaded onto the rod of one of the connecting studs 9.

[0030] By setting up a multi-head connection mechanism, the connecting ring 6 is threaded onto the rod body of the connecting stud 9. The connecting stud 9, the movable cylinder 8, and the connecting seat 7 can serve as an intermediary to connect the ring 5 and the piston rod in an integrated manner, so as to ensure that when the cylinder 4 is opened, the piston rod can perform a pressing action on the ring 5.

[0031] If the connecting studs 9 that were originally threaded to the connecting ring 6 are severely worn due to repeated disassembly and assembly of the ring 5, the movable cylinder 8 can be easily rotated to rotate and replace the multiple connecting studs 9. This allows for quick replacement of the worn connecting studs 9, which is beneficial for the connecting ring 6 to be reconnected and used in a short time. Compared with existing technology, this also creates a connection between the connecting ring 6 and the piston rod, avoiding the need to replace the entire piston rod of the cylinder 4 and saving costs.

[0032] Furthermore, referring to Figure 4 and Figure 5 As shown, it is worth noting that the end of the movable cylinder 8 rotates through the connecting seat 7 and is tightly fitted with a locking gear 10. A positioning tooth 11 is elastically slidably connected to one side wall of the connecting seat 7, and one end of the positioning tooth 11 is inserted between two adjacent teeth of the locking gear 10.

[0033] The other end of the positioning tooth 11 is fixed with a movable slider 12. A sliding groove adapted to the movable slider 12 is provided on the side wall of the connecting seat 7. A return spring 13 is fixed between the movable slider 12 and the inner wall of one side of the sliding groove.

[0034] With the setting of locking gear 10 and positioning tooth 11, when the movable cylinder 8 is rotated and the connecting stud 9 is worn and replaced, the positioning tooth 11 needs to be slid beforehand so that one end of the positioning tooth 11 is disengaged from the two adjacent teeth of locking gear 10. This releases the fixing effect on locking gear 10 and movable cylinder 8, thus facilitating the rotation of movable cylinder 8.

[0035] During the sliding of the positioning tooth 11, the movable slider 12 moves synchronously within the sliding gap and compresses the deformation of the return spring 13. Then, after the movable cylinder 8 has rotated, the positioning tooth 11 only needs to be released, and the movable slider 12 can quickly reset under the elastic force of the return spring 13 and re-insert between two adjacent teeth of the locking gear 10, thereby re-locking the locking gear 10 and the movable cylinder 8 and ensuring the stability of the connecting stud 9 after rotation and replacement.

[0036] Furthermore, referring to Figure 4 As shown, it is worth noting that a locking block 14 is fixed at one end of the connecting stud 9 facing the movable cylinder 8. The movable cylinder 8 has a movable socket that matches the locking block 14 on its cylinder wall. The movable cylinder 8 has an elastic positioning element for locking the locking block 14 inside.

[0037] The elastic positioning component includes a movable piece 15 that is slidably disposed inside the movable cylinder 8. A locking post 16 is fixed on one side of the movable piece 15, and a fixing opening adapted to the locking post 16 is provided on the locking block 14.

[0038] The elastic positioning component also includes a push-pull rod 17 arranged in a T-shape on the outside of the connecting seat 7. The horizontal section of the push-pull rod 17 passes into the movable cylinder 8 and is fixedly connected to the movable piece 15. The rod body of the push-pull rod 17 is fitted with a compression spring 18. The two ends of the compression spring 18 are fixedly connected to the end of the movable cylinder 8 and the vertical section of the push-pull rod 17, respectively.

[0039] After a certain period of time, when all the connecting studs 9 are completely worn out, simply squeeze the push-pull rod 17. The lateral section of the push-pull rod 17 will continuously penetrate into the movable cylinder 8 and push the movable piece 15 to slide to one side, so that the locking post 16 can be removed from the fixed port. In this way, the fixing effect on multiple connecting studs 9 can be released at one time, making it convenient to disassemble multiple connecting studs 9 at one time.

[0040] When the push-pull rod 17 is pressed, the vertical section of the push-pull rod 17 is forced to slide towards the movable cylinder 8 and compress the compression spring 18. Then, when the manual release of the pressure on the push-pull rod 17, the push-pull rod 17 can quickly pull back the movable piece 15 to reset under the elastic force of the compression spring 18, so that the locking pin 16 can be re-inserted into the fixing hole, and the locking block 14 and the connecting stud 9 can be fixed as a whole again.

[0041] Furthermore, when assembling the connecting stud 9 and the movable cylinder 8, the locking block 14 is inserted into the movable socket, and the outer wall of the locking block 14 comes into contact with the inner wall of the movable socket. By utilizing the frictional characteristics of the locking block 14, the connecting stud 9 can be effectively braked and initially positioned, preventing the locking block 14 from falling off under the gravity of the connecting stud 9 after insertion.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A leather cup pressing device, comprising a base (1) and a support seat (3) fixed in an inverted L shape on one side of the base (1), wherein a support cylinder (2) for placing a hook and a leather cup is provided in the middle of the top surface of the base (1), a ring (5) for pressing the leather cup is slidably provided above the support cylinder (2), a cylinder (4) for lifting and lowering the ring (5) is vertically installed on the top of the support seat (3), and a connecting ring (6) is provided above the ring (5), the connecting ring (6) being fixedly connected to the ring (5) by a plurality of support rods, characterized in that, The piston rod of the cylinder (4) passes through the inner side of the support seat (3) and is provided with a multi-head connection mechanism between it and the ring (5); The multi-head connection mechanism includes a connecting seat (7) fixed in an inverted U-shape to the end of the piston rod of the cylinder (4), a movable cylinder (8) vertically rotatably disposed on one side wall of the connecting seat (7), and a number of connecting studs (9) distributed around the cylinder body of the movable cylinder (8). The connecting ring (6) is threaded onto the rod body of one of the connecting studs (9), and a locking block (14) is fixed to one end of the connecting stud (9) facing the movable cylinder (8). The movable cylinder (8) has a movable insertion port adapted to the locking block (14) on its cylinder wall, and the movable cylinder (8) has an elastic positioning member built in it for locking the locking block (14).

2. The leather cup pressing device according to claim 1, characterized in that, The end of the movable cylinder (8) rotates through the connecting seat (7) and is fastened with a locking gear (10). A positioning tooth (11) is elastically slidably connected to one side wall of the connecting seat (7). One end of the positioning tooth (11) is inserted between two adjacent teeth of the locking gear (10).

3. The leather cup pressing device according to claim 1, characterized in that, The elastic positioning component includes a movable piece (15) that is slidably disposed inside the movable cylinder (8). A locking post (16) is fixed on one side of the movable piece (15), and a fixing opening adapted to the locking post (16) is provided on the locking block (14).

4. The leather cup pressing device according to claim 3, characterized in that, The elastic positioning component also includes a push-pull rod (17) arranged in a T-shape on the outside of the connecting seat (7). The horizontal section of the push-pull rod (17) passes through the movable cylinder (8) and is fixedly connected to the movable piece (15). The rod body of the push-pull rod (17) is fitted with a compression spring (18). The two ends of the compression spring (18) are fixedly connected to the end of the movable cylinder (8) and the vertical section of the push-pull rod (17), respectively.

5. The leather cup pressing device according to claim 2, characterized in that, The other end of the positioning tooth (11) is fixed with a movable slider (12). A sliding groove adapted to the movable slider (12) is opened on the side wall of the connecting seat (7). A return spring (13) is fixed between the movable slider (12) and the inner wall of one side of the sliding groove.

Citation Information

Patent Citations

  • Leather cup press fitting device

    CN211192787U