A mounting device for a trolley connecting pin

By designing an installation device suitable for the trolley connecting pin, workers can operate from one side of the trolley, solving the safety hazards of installing connecting pins in narrow gaps and achieving safe and efficient installation of connecting pins.

CN224674822UActive Publication Date: 2026-08-25河北荣信钢铁有限公司
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Patent Information

Application Number
CN202522069602.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-26
Publication Date
2026-08-25
Estimated Expiration
2035-09-26

AI Technical Summary

Technical Problem

During the trolley operation, there are safety hazards in installing connecting pins in narrow gaps, and the on-site situation is complex and changeable, which can easily lead to personal injury.

Method used

An installation device comprising an extension section, a triggering mechanism, a locking section, and a clamping section has been designed, allowing workers to operate from one side of the trolley. By clamping and inserting connecting pins, workers are prevented from entering the gap to work, ensuring safety.

Benefits of technology

It reduces labor intensity and improves worker safety, ensuring safety and efficiency when operating within the gaps between trolleys.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an installation device suitable for trolley connecting pin, its characterized in being: including extension, trigger mechanism, locking portion, disc and clamping portion, one end of extension is set on the top end surface of disc, trigger mechanism is set on extension, locking portion is set on disc, clamping portion is set on the bottom end surface of disc, and locking portion and clamping portion contact, the utility model improves the safety of staff when installing connecting pin, reduces the hidden danger.
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Description

Technical Field

[0001] This utility model relates to an installation device, and more particularly to a device that can assist workers in safely and efficiently installing the connecting pins of a trolley, belonging to the technical field of connecting pin installation equipment. Background Technology

[0002] During the operation of the trolley, it is often necessary to connect individual trolleys to the whole vehicle and frequently install connecting pins on the trolleys. Due to the small gaps between the trolleys, there are safety hazards for workers to install connecting pins within these gaps. The on-site situation is complex and changeable. If the trolleys move close to each other due to accidents while workers are working within the gaps, it can cause personal injury to the workers. Therefore, an auxiliary device is needed to help workers install connecting pins without entering the gaps between the trolleys, thereby ensuring the personal safety of the workers. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide an installation device suitable for trolley connecting pins, which can not only reduce the labor intensity of workers, but also ensure the personal safety of workers.

[0004] The problem described in this utility model is solved by the following technical solution: An installation device for a trolley connecting pin includes an extension portion, a triggering mechanism, a locking portion, a disc, and a clamping portion; one end of the extension portion is disposed on the top surface of the disc; the triggering mechanism is disposed on the extension portion; the locking portion is disposed on the disc; and the clamping portion is disposed on the bottom surface of the disc, with the locking portion in contact with the clamping portion.

[0005] The above-described installation device for trolley connecting pins includes a clamping part comprising multiple clamping mechanisms, each symmetrically arranged circumferentially on the bottom surface of a disc. Each clamping mechanism includes a first hinge seat, a first spring, a flipping rod, and an L-shaped locking block. The first hinge seat is located at the edge of the bottom surface of the disc, and the top end of the flipping rod forms a hinged connection with the first hinge seat. The top end of the first spring is located on the bottom surface of the disc, and the bottom end of the first spring is connected to the upper end of the outer wall of the flipping rod. The center of the outer wall of the L-shaped locking block is located at the bottom end of the flipping rod.

[0006] The above-described installation device for the trolley connecting pin includes a locking component comprising a ring, a plumb bob, a lifting plate, a guide plate, a pressing mechanism, and an lifting mechanism. The ring has a square hole at its center, and the plumb bob passes through this hole. The bottom end of the plumb bob is connected to the ring via a bracket. The ring is located directly below the ring, and its axis coincides with the ring's axis. The inner wall of the ring contacts the outer wall of each rotating rod. The top end of the plumb bob is connected to the bottom end face of the lifting plate. The ring has a guide hole, and the guide plate passes through this hole, with its top end connected to the bottom end face of the lifting plate. Both the pressing mechanism and the lifting mechanism are mounted on the ring; the pressing mechanism is connected to the top end face of the lifting plate, and the lifting mechanism contacts the bottom end face of the lifting plate.

[0007] The above-described installation device for the trolley connecting pin includes a pressing mechanism comprising a second spring and a horizontal plate; the horizontal plate is mounted on the top surface of the disc via a bracket, and is located directly above the lifting plate; the second spring is mounted on the bottom surface of the horizontal plate, and the bottom end of the second spring is connected to the top surface of the lifting plate.

[0008] The above-described installation device for the trolley connecting pin includes an upper lifting mechanism comprising a slide rail, a triangular slider, and a push plate. The slide rail is disposed on the top surface of the disc, and limit stops are provided at both ends. The bottom end of the triangular slider is provided with a groove, and the groove at the bottom end of the triangular slider is slidably disposed on the slide rail. The top surface of the triangular slider is an inclined surface, and the inclined surface of its top surface contacts the bottom surface of the lifting plate. A push plate is provided on the vertical end surface of the triangular slider away from the lifting plate.

[0009] The above-described installation device for the trolley connecting pin includes an extension portion comprising a long rod and a second hinge seat; the second hinge seat is disposed on the top surface of the disc; one end of the long rod and the second hinge seat form a hinged connection structure.

[0010] The above-described installation device for trolley connecting pins includes a triggering mechanism comprising a guide ring, a push rod, and a push pin; there are multiple guide rings, all of which are mounted on the side wall of the long rod; the push rod passes through each guide ring; a push pin is provided at the end of the push rod near the push plate, and the push pin points towards the push plate.

[0011] This utility model allows operators to stand on one side of the trolley to operate the device by extending the extension section, thus preventing operators from entering the gap between the trolleys and improving safety. Through the cooperation of the locking part, the triggering mechanism and the clamping part, the connecting pin is clamped and lowered, thereby inserting the connecting pin into the connecting pin mounting position on the trolley. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the first three-dimensional structure of the present invention; Figure 2 This is a partially enlarged structural diagram of component A of this utility model; Figure 3 This is a schematic diagram of the second three-dimensional structure of the present invention; Figure 4 This is a partially enlarged structural diagram of the present invention, B.

[0013] The following are the labels in the diagram: 1. Disc, 2. First hinge seat, 3. First spring, 4. Flipping rod, 5. L-shaped block, 6. Ring, 7. Vertical column, 8. Lifting plate, 9. Guide plate, 10. Second spring, 11. Horizontal plate, 12. Slide rail, 13. Triangular slider, 14. Push plate, 15. Long rod, 16. Second hinge seat, 17. Guide ring, 18. Push rod, 19. Push pin. Detailed Implementation

[0014] See Figure 1 , 2 3 and Figure 4 This utility model includes an extension portion, a triggering mechanism, a locking portion, a disc 1, and a clamping portion; one end of the extension portion is disposed on the top surface of the disc 1; the function of the extension portion is to ensure that the operator can operate the connecting pin installation position in the gap between the trolleys while standing on one side of the trolley, eliminating the need for manual entry into the gap between the trolleys and improving safety; the triggering mechanism is disposed on the extension portion; the locking portion is disposed on the disc 1; the clamping portion is disposed on the bottom surface of the disc 1, and the locking portion is in contact with the clamping portion.

[0015] The clamping part includes multiple clamping mechanisms, each symmetrically arranged on the bottom surface of the disk 1. These clamping mechanisms cooperate to clamp the top of the connecting pin. Each clamping mechanism includes a first hinge seat 2, a first spring 3, a flipping rod 4, and an L-shaped locking block 5. The first hinge seat 2 is located at the edge of the bottom surface of the disk 1, and the top of the flipping rod 4 forms a hinged connection with the first hinge seat 2. The flipping rod 4 can be flipped through the first hinge seat 2, allowing the L-shaped locking block 5 at its bottom to press against the top of the connecting pin. Each L-shaped locking block 5 clamps the top of the connecting pin. The top of the first spring 3 is located on the bottom surface of the disk 1, and the bottom of the first spring 3 is connected to the upper end of the outer wall of the flipping rod 4. The first spring 3 provides an upward flipping force to the flipping rod 4. The center of the outer wall of the L-shaped locking block 5 is located at the bottom end of the flipping rod 4.

[0016] The locking mechanism includes a ring 6, a plumb bob 7, a lifting plate 8, a guide plate 9, a pressing mechanism, and an lifting mechanism. A square hole is provided in the center of the disc 1, and the plumb bob 7 passes through this central square hole. The bottom end of the plumb bob 7 is connected to the ring 6 via a bracket. The ring 6 is located directly below the disc 1, and its axis coincides with the axis of the disc 1. The inner wall of the ring 6 contacts the outer wall of each flipping rod 4. When the ring 6 moves downwards, it presses each flipping rod 4 inwards, causing the flipping rod 4 to clamp the connecting pin. When the ring 6 moves upwards, the flipping rod 7 receives a spring. The force of the spring flips upward, thereby releasing the clamping of the connecting pin; the top of the plumb column 7 is connected to the bottom end face of the lifting plate 8; the disc 1 is provided with a guide hole, and the guide plate 9 passes through the guide hole of the disc 1, and the top of the guide plate 9 is connected to the bottom end face of the lifting plate 8; the function of the guide plate 9 is to ensure that the plumb column can be reliably and smoothly raised and lowered; the pressing mechanism and the lifting mechanism are both provided on the disc 1, the pressing mechanism is connected to the top end face of the lifting plate 8, and the lifting mechanism is in contact with the bottom end face of the lifting plate 8; the pressing mechanism provides a downward pressing force to the lifting plate 8, and the lifting mechanism provides an upward force to the lifting plate 8.

[0017] The pressing mechanism includes a second spring 10 and a horizontal plate 11; the horizontal plate 11 is mounted on the top surface of the disc 1 via a bracket, and the horizontal plate 11 is located directly above the lifting plate 8; the second spring 10 is mounted on the bottom surface of the horizontal plate 11, and the bottom end of the second spring 10 is connected to the top surface of the lifting plate 8; the second spring 10 provides continuous downward pressure to the lifting plate 8, ensuring that the ring can press the flipping rod when the pressing mechanism is not in action, and ensuring that the connecting pin can be reliably clamped.

[0018] The upper lifting mechanism includes a slide rail 12, a triangular slider 13, and a push plate 14. The slide rail 12 is set on the top surface of the disc 1, and both ends of the slide rail 12 are provided with limit blocks. The function of the limit blocks is to prevent the triangular slider 13 from disengaging from the slide rail 12. The bottom end of the triangular slider 13 is provided with a groove, and the groove at the bottom end of the triangular slider 13 is slidably set on the slide rail 12. The top surface of the triangular slider 13 is an inclined surface, and the inclined surface of its top surface contacts the bottom surface of the lifting plate 8. Since the top surface of the triangular slider 13 is an inclined surface, the height of the contact point with the lifting plate 8 changes when it slides. When the height of the contact point increases, the lifting plate 8 is raised, thus driving the lifting plate 8 to rise. The vertical end surface of the triangular slider 13 away from the lifting plate 8 is provided with a push plate 14. When the push plate 14 is pushed, the triangular slider 13 is pushed to slide simultaneously.

[0019] The extension includes a long rod 15 and a second hinge seat 16; the second hinge seat 16 is disposed on the top surface of the disk 1; one end of the long rod 15 and the second hinge seat 16 form a hinged connection structure; the presence of the second hinge seat 16 ensures that when the long rod 15 is tilted, the disk can remain as horizontal as possible, which ensures that the axis of the clamped connecting pin is as vertical as possible, which ensures that the connecting pin can be smoothly inserted into the mounting position.

[0020] The triggering mechanism includes a guide ring 17, a push rod 18, and a push pin 19. Multiple guide rings 17 are provided, all mounted on the side wall of the long rod 15. The push rod 18 passes through each guide ring 17. A push pin 19 is provided at the end of the push rod 18 near the push plate 14, and the push pin 19 points towards the push plate 14. Because the push plate 14 is relatively long, the push pin 19 can push the push plate 14 at various tilt angles. The guide ring 17 ensures that the push rod 18 can reliably slide on the side wall of the long rod 15. The push rod 18 can drive the push pin forward synchronously, which in turn drives the push rod 18 to push the push pin 19 to push the push plate forward. The push plate drives the triangular slider 13 forward, thereby raising the lifting plate, and ultimately raising the circular ring.

[0021] Operating principle: Before installing the connecting pin, manually raise the lifting plate 8, causing the ring 6 to rise and each flipping rod 4 to flip outwards, placing the top of the connecting pin between each L-shaped locking block 5. Then release the lifting plate 8. At this time, the lifting plate 8 moves downwards under the action of the second spring 10, which in turn drives the ring downwards. The ring drives each flipping rod 4 to flip inwards, and finally the L-shaped locking blocks clamp the top of the connecting pin. Then, hold the end of the long rod 15 and move the connecting pin into the gap of the trolley, close to the installation position of the connecting pin. Then insert the connecting pin into the trolley mounting hole. After the connecting pin is in place, push the push rod 18 by hand, which will drive the push rod forward. The push pin 19 at its end will push the push plate forward, which will drive the triangular slider forward. Finally, the triangular slider will push the lifting plate 8 to rise, and then the ring 6 will be pulled up. At this time, the flipping rod 4 will flip outward, and each L-shaped block will release its grip on the connecting pin. Then remove the device, and repeat the above actions to install the connecting pin, then install the connecting pin, and then remove the device. Repeat this process until all the connecting pins are installed in place.

Claims

1. An installation device suitable for trolley connecting pins, characterized in that: It includes an extension part, a triggering mechanism, a locking part, a disc (1), and a clamping part; one end of the extension part is disposed on the top surface of the disc (1); the triggering mechanism is disposed on the extension part; the locking part is disposed on the disc (1); the clamping part is disposed on the bottom surface of the disc (1), and the locking part is in contact with the clamping part.

2. The mounting device for trolley connecting pins according to claim 1, characterized in that: The clamping part includes multiple clamping mechanisms, and each clamping mechanism is symmetrically arranged on the bottom surface of the disc (1) in a circumferential direction; the clamping mechanism includes a first hinge seat (2), a first spring (3), a flipping rod (4) and an L-shaped locking block (5); the first hinge seat (2) is located at the edge of the bottom surface of the disc (1), and the top end of the flipping rod (4) and the first hinge seat (2) form a hinged connection structure; the top end of the first spring (3) is located on the bottom surface of the disc (1), and the bottom end of the first spring (3) is connected to the upper end of the outer wall of the flipping rod (4); the center of the outer wall of the L-shaped locking block (5) is located at the bottom end of the flipping rod (4).

3. The mounting device for trolley connecting pins according to claim 2, characterized in that: The locking mechanism includes a ring (6), a vertical column (7), a lifting plate (8), a guide plate (9), a pressing mechanism, and an lifting mechanism; the center of the disc (1) is provided with a square hole, and the vertical column (7) passes through the central square hole of the disc (1); the bottom end of the vertical column (7) is connected to the ring (6) through a bracket; the ring (6) is located directly below the disc (1), and the axis of the ring (6) coincides with the axis of the disc (1); the inner wall of the ring (6) Contact the outer wall of each flipping rod (4); the top of the vertical column (7) is connected to the bottom end face of the lifting plate (8); the disc (1) is provided with a guide hole, and the guide plate (9) passes through the guide hole of the disc (1), and the top of the guide plate (9) is connected to the bottom end face of the lifting plate (8); the pressing mechanism and the lifting mechanism are both provided on the disc (1), the pressing mechanism is connected to the top end face of the lifting plate (8), and the lifting mechanism is in contact with the bottom end face of the lifting plate (8).

4. The mounting device for trolley connecting pins according to claim 3, characterized in that: The pressing mechanism includes a second spring (10) and a horizontal plate (11); the horizontal plate (11) is mounted on the top surface of the disc (1) by a bracket and is located directly above the lifting plate (8); the second spring (10) is mounted on the bottom surface of the horizontal plate (11) and the bottom end of the second spring (10) is connected to the top surface of the lifting plate (8).

5. The mounting device for trolley connecting pins according to claim 4, characterized in that: The upper lifting mechanism includes a slide rail (12), a triangular slider (13), and a push plate (14); the slide rail (12) is set on the top surface of the disc (1), and both ends of the slide rail (12) are provided with limit blocks; the bottom end of the triangular slider (13) is provided with a groove, and the groove at the bottom end of the triangular slider (13) is slidably set on the slide rail (12); the top surface of the triangular slider (13) is an inclined surface, and the inclined surface of the top surface of the triangular slider (13) is in contact with the bottom surface of the lifting plate (8); the vertical end surface of the triangular slider (13) away from the lifting plate (8) is provided with a push plate (14).

6. The mounting device for trolley connecting pins according to claim 5, characterized in that: The extension includes a long rod (15) and a second hinge seat (16); the second hinge seat (16) is disposed on the top surface of the disk (1); one end of the long rod (15) and the second hinge seat (16) form a hinged connection structure.

7. The mounting device for trolley connecting pins according to claim 6, characterized in that: The triggering mechanism includes a guide ring (17), a push rod (18), and a push pin (19); there are multiple guide rings (17), and they are all set on the side wall of the long rod (15); the push rod (18) passes through each guide ring (17); the push rod (18) is provided with a push pin (19) at one end near the push plate (14), and the push pin (19) points towards the push plate (14).