Quick assembly tool for flat opening pin of open car door

By designing a quick assembly tooling that includes a support base, handle, round pin sleeve, and sliding sleeve, the problem of inconvenient assembly of flat cotter pins is solved, achieving rapid packaging and saving time and effort, thus improving work efficiency.

CN117697685BActive Publication Date: 2026-04-10中国铁路南宁局集团有限公司 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
中国铁路南宁局集团有限公司
Filing Date
2023-12-18
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

The existing flat cotter pin assembly technology is inconvenient to operate, time-consuming and labor-intensive, and cannot meet the needs of the current production pace.

Method used

A quick assembly tooling was designed, comprising a support base, a handle, a round pin sleeve, an arc sleeve, and a sliding sleeve. Through the cooperation of the sliding sleeve and the handle, the flat cotter pin is quickly packaged and opened as a whole, ensuring that the pin tail is rolled up more than 3/4 of the circumference of the round pin rod.

Benefits of technology

It enables rapid packaging of flat cotter pins, a process that takes only 10-20 seconds, meeting the requirements for convenient connection, improving work efficiency, and achieving time-saving, labor-saving, and safe operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a flat split pin quick assembling tool for an open wagon door, and belongs to the technical field of split pin assembling. The tool comprises a supporting seat and a handle, the top of the supporting seat is provided with a round pin sleeve, one end of the round pin sleeve is provided with a fixing shaft, one end of the fixing shaft is rotationally connected with the handle, the supporting seat below the other end of the round pin sleeve is provided with an arc-shaped sleeve, the top of the arc-shaped sleeve is provided with an opening aligned with the round pin sleeve, the periphery of the handle is provided with a sliding sleeve connected in a sliding mode, and one end of the sliding sleeve is provided with an arc-shaped opening device aligned with the arc-shaped sleeve. The arc-shaped opening device is clamped at the long side / short side of the opening end of the flat split pin by being slid downward, and then the handle is rotated upward or downward to realize split packing and compression of the flat split pin, the whole opening packing of the flat split pin is realized, the whole process can be completed in only 10-20 seconds, the design intention of fast packing, time and labor saving and safe operation is achieved, and the working efficiency is greatly improved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of split pin assembly, in particular to a quick assembly tool for split pin of open wagon door. BACKGROUND

[0002] According to the requirements of the Notice on the Trial Scheme for the Convenient Connection of General Open Wagon Doors and Car Bodies (Railway Vehicle Inspection Network

[2023] No. 144) and other documents, the doors of national railway open wagons must be completely disassembled and reassembled after shaping. Our section adopts the second scheme of split pin connection scheme assembly (as far as we know, most vehicle sections in the country use this method of assembly), and the split pin must be split and packaged to prevent it from falling out.

[0003] The existing split pin assembly technical scheme is as follows: (1) the split pin assembly tool published by the national railway group is purchased from the market: first, insert the end of the split pin into the pin tail sleeve, then insert the tail of the split pin into the support sleeve, then insert the stopper into the long side / short side of the split pin opening end, rotate the handle to split the split pin, and then use a hammer to hit the other piece of pin to package it. (2) The common short steel pipe simple assembly method: use two short steel pipes to split, that is, flatten one end of the steel pipe to insert into the split pin, use artificial to pull the steel pipe in the opposite direction, so that the split pin is separated to two sides, and then use a hammer to hit the pin to make it stick to the round pin rod for packaging and splitting.

[0004] The disadvantages of the existing technology are as follows: (1) the split pin assembly tool published by the national railway group can only achieve single-piece and single-direction packaging and splitting, and a hammer is used to hit the other piece of pin for packaging. (2) The common short steel pipe simple assembly method cannot meet the requirement that the tail of the split pin must be rolled up and exceed 3 / 4 of the circumference length of the round pin rod, and manual hammering is required to meet the requirement. The above methods have the problems of inconvenient operation, time-consuming and laborious work (1-2 minutes), low efficiency, and cannot meet the current production rhythm. SUMMARY

[0005] The technical problem to be solved by the present application is to overcome the above-mentioned deficiencies of the prior art, and the purpose of the present application is to provide a quick assembly tool for split pin of open wagon door, which can achieve the goals of fast packaging, time and labor saving, safe operation, and greatly improving the work efficiency.

[0006] The technical scheme of the present application is as follows: a quick assembly tool for split pin of open wagon door, comprising a support seat and a handle, wherein the top of the support seat is provided with a round pin sleeve, one end of the round pin sleeve is rotatably connected with the handle, the support seat below the other end of the round pin sleeve is provided with an arc-shaped sleeve, the top of the arc-shaped sleeve is provided with an opening aligned with the round pin sleeve, the periphery of the handle is provided with a sliding sleeve connected with the arc-shaped sleeve, and one end of the sliding sleeve is provided with an arc-shaped opening device aligned with the arc-shaped sleeve.

[0007] As a further improvement, one end of the round pin sleeve is provided with a fixed shaft, one end of the fixed shaft passes through the handle and is rotationally connected with the handle.

[0008] Further, one end of the fixed shaft passing through the handle is provided with a limiting mechanism limiting the handle from coming out of the fixed shaft.

[0009] Further, the limiting mechanism comprises a threaded section fixedly connected with one end of the fixed shaft, and the threaded section is provided with a limiting nut.

[0010] Further, the side wall of the handle is provided with a rack, and the other end of the sliding sleeve is rotationally provided with a limiting block, and the limiting block is clamped on the rack.

[0011] Further, the inside of the handle is provided with a sliding groove, and the sliding groove is provided with a return spring, one end of the return spring is connected with the handle, and the other end of the return spring is connected with the sliding sleeve.

[0012] Further, the inside of the handle is provided with a weight-reducing groove.

[0013] Further, one end of the handle away from the fixed shaft is provided with a hook hole.

[0014] Further, the sliding groove is provided with a fixed column connected with one end of the return spring, and the sliding sleeve is provided with a fixed bolt connected with the other end of the return spring.

[0015] Advantages

[0016] Compared with the prior art, the present application has the advantages of:

[0017] The present application realizes the overall opening and packaging of the flat opening pin by sliding the arc-shaped opener downward to clamp the long side / short side of the opening end of the flat opening pin, and finally rotating the handle upward or downward to split and pack the flat opening pin, so that the requirement of "the tail of the pin is wound up and exceeds 3 / 4 of the circumference length of the round pin rod" is met, and the whole process can be completed in only 10-20 seconds, which not only meets the requirement of convenient connection scheme of the vehicle door and the vehicle body, but also achieves the design intention of fast packaging, time and labor saving, and safe operation, and greatly improves the work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 is a structural schematic diagram of the present application;

[0019] Fig. 2 is an exploded view of the present application;

[0020] Fig. 3 is a structural schematic diagram of the support seat in the present application.

[0021] Wherein: 1-support seat, 2-handle, 3-round pin sleeve, 4-arc sleeve, 5-opening, 6-sliding sleeve, 7-arc-shaped opening device, 8-fixed shaft, 9-threaded section, 10-limiting nut, 11-rack, 12-limiting block, 13-sliding groove, 14-return spring, 15-weight reduction groove, 16-hook hole, 17-fixed column, 18-fixed bolt, 19-connection pin hole. DETAILED DESCRIPTION

[0022] The application will be further described below with reference to the specific embodiments in the drawings.

[0023] Reference Figs. 1-3 A flat open pin quick assembly tool for open car door, comprising a support seat 1 and a handle 2. The top of the support seat 1 is provided with a round pin sleeve 3, preferably, the inner hole of the round pin sleeve 3 is gap-fitted with the flat open pin, that is, the round pin sleeve 3 can be conveniently sleeved into the end of the flat open pin. One end of the round pin sleeve 3 is rotatably connected with the handle 2, and the support seat 1 below the other end of the round pin sleeve 3 is provided with an arc sleeve 4, the top of the arc sleeve 4 is provided with an opening 5 aligned with the round pin sleeve 3, preferably, the length of the arc sleeve 4 is 3 / 4 of a circle. The periphery of the handle 2 is provided with a sliding sleeve 6 connected slidingly, and one end of the sliding sleeve 6 is provided with an arc-shaped opening device 7 aligned with the arc sleeve 4. The arc-shaped opening device 7 is an arc-shaped plate structure with a length of 1 / 3 of a circle.

[0024] In one embodiment, the handle 2 is rotatably connected with the round pin sleeve 3 through a bearing or a hinge.

[0025] In one embodiment, one end of the round pin sleeve 3 is provided with a fixed shaft 8, the round pin sleeve 3 and the fixed shaft 8 are coaxially arranged, one end of the fixed shaft 8 penetrates through the handle 2 and is rotatably connected with the handle 2, specifically, the handle 2 is provided with a connection pin hole 19, and one end of the fixed shaft 8 penetrates through the connection pin hole 19 of the handle 2.

[0026] One end of the fixed shaft 8 penetrating through the handle 2 is provided with a limiting mechanism limiting the handle 2 from coming out of the fixed shaft 8. Specifically, the limiting mechanism comprises a threaded section 9 fixedly connected with one end of the fixed shaft 8, and the threaded section 9 is provided with a limiting nut 10, and the handle 2 is blocked by screwing in the limiting nut 10.

[0027] In other embodiments, the limiting mechanism can also be a baffle welded at the end of the fixed shaft 8, or an opening pin penetrating through the fixed shaft 8.

[0028] Preferably, the side wall of the handle 2 is provided with a rack 11, and the other end of the sliding sleeve 6 is rotatably provided with a limiting block 12, the limiting block 12 is clamped on the rack 11, specifically, the inner side of the limiting block 12 is provided with a clamping tooth, and the clamping tooth is clamped on the rack 11.

[0029] In one embodiment, the inner part of the handle 2 is provided with a sliding groove 13, and a reset spring 14 is arranged in the sliding groove 13. One end of the reset spring 14 is connected to the handle 2, and the other end of the reset spring 14 is connected to the sliding sleeve 6. When the sliding sleeve 6 is moved, the reset spring 14 can automatically reset the sliding sleeve 6. Specifically, the sliding groove 13 is provided with a fixed column 17 connected to one end of the reset spring 14, and the sliding sleeve 6 is provided with a fixed bolt 18 connected to the other end of the reset spring 14.

[0030] The inner part of the handle 2 is provided with a weight-reducing groove 15, which can reduce the overall weight of the tool. The end of the handle 2 away from the fixed shaft 8 is provided with a hook hole 16, which can be used to hang the tool in a tool cabinet.

[0031] Working principle:

[0032] Pass the flat split pin through the pin hole of the flat hole round pin, and separate the long side and the short side of the flat split pin;

[0033] The tail part (round head part) of the flat split pin is loaded into the arc-shaped sleeve 4 from the opening 5, which can prevent the flat split pin from falling off and ensure that the flat split pin is inserted into the flat hole round pin in place;

[0034] The round pin sleeve 3 is sleeved on the end of the flat hole round pin, which serves to fix the flat hole round pin;

[0035] The support seat 1 is vertically supported on the vehicle body, which can keep the flat split pin always in a vertical direction;

[0036] Slide the sliding sleeve 6 downward to split the long side and the short side of the flat split pin with the arc-shaped opener 7;

[0037] After the sliding sleeve 6 is slid into place, the limit block 12 is clamped on the rack 11 to prevent the sliding sleeve 6 from sliding backward;

[0038] Rotate the handle 2 upward and downward respectively to split and pack the flat split pin, realize the overall opening and packing of the flat split pin, and achieve the requirement that the tail of the pin is wound up and exceeds 3 / 4 of the circumference length of the round pin rod. The whole process can be completed in only 10-20 seconds, which not only meets the requirement of the convenient connection scheme of the vehicle door and the vehicle body, but also achieves the design intention of fast packing, time and labor saving, and safe operation, and greatly improves the work efficiency;

[0039] After the assembly of the flat split pin is completed, the limit block 12 is separated from the rack 11, and the sliding sleeve 6 is slid upward to disassemble the tool.

[0040] The above is only a preferred embodiment of the present application. It should be pointed out that for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which will not affect the effect of the implementation of the present application and the practicality of the patent.

Claims

1. A quick assembly tool for a gape pin of a gondola door, characterized in that, The utility model provides a support seat (1), handle (2), the top of support seat (1) is equipped with round pin sleeve (3), one end of round pin sleeve (3) is rotatably connected with handle (2), the support seat (1) below the other end of round pin sleeve (3) is equipped with arc sleeve (4), the top of arc sleeve (4) is equipped with the opening (5) with round pin sleeve (3) alignment, the periphery of handle (2) is equipped with the sliding sleeve (6) of sliding connection, one end of sliding sleeve (6) is equipped with the arc opening ware (7) with arc sleeve (4) alignment.

2. The quick assembly tool for flat opening pin of a gondola car door according to claim 1, characterized in that, One end of the fixed shaft (8) is provided with a fixed shaft (8), and the other end of the fixed shaft (8) passes through the handle (2) and is rotatably connected with the handle (2).

3. The quick assembly tool for flat opening pin of a gondola door according to claim 2, characterized in that, The fixed shaft (8) passes through one end of the handle (2) and is provided with a limiting mechanism for limiting the handle (2) from being pulled out of the fixed shaft (8).

4. The quick assembly tool for flat opening pin of a gondola door according to claim 3, characterized in that, The limiting mechanism includes a threaded section (9) fixedly connected to one end of the fixed shaft (8), and the threaded section (9) is provided with a limiting nut (10).

5. The quick assembly tool for flat opening pin of a gondola car door according to any one of claims 1-4, characterized in that, The side wall of the handle (2) is provided with a rack (11), and the other end of the sliding sleeve (6) is rotatably provided with a limiting block (12), and the limiting block (12) is clamped on the rack (11).

6. The quick assembly tool for flat opening pin of a gondola car door according to any one of claims 1-4, characterized in that, The inside of the handle (2) is provided with a sliding groove (13), and the sliding groove (13) is provided with a reset spring (14), one end of the reset spring (14) is connected with the handle (2), and the other end of the reset spring (14) is connected with the sliding sleeve (6).

7. The quick assembly tool for flat opening pin of a gondola door according to claim 5, characterized in that, The inside of the handle (2) is provided with a sliding groove (13), and the sliding groove (13) is provided with a reset spring (14), one end of the reset spring (14) is connected with the handle (2), and the other end of the reset spring (14) is connected with the sliding sleeve (6).

8. The quick assembly tool for flat opening pin of a gondola door according to claim 1, characterized in that, The inside of the handle (2) is provided with a weight reduction groove (15).

9. The quick assembly tool for flat opening pin of a gondola door according to claim 1, characterized in that, The end of the handle (2) away from the fixed shaft (8) is provided with a hook hole (16).

10. The quick assembly tool for flat opening pin of a gondola door according to claim 6, characterized in that, The sliding groove (13) is provided with a fixed column (17) connected to one end of the reset spring (14), and the sliding sleeve (6) is provided with a fixed bolt (18) connected to the other end of the reset spring (14).

Citation Information

Patent Citations

  • Flat hole round pin for railway vehicles

    CN201851451U

  • Cotter pin structure

    JP3122955U