Tread sweeper snap spring installation tool

Abstract

The utility model provides a tread sweeper snap spring installation tool which comprises an outer guide cylinder and a press fitting rod, the outer guide cylinder comprises a sleeve and a guide pipe which are connected, a first through hole is formed in the sleeve, a second through hole is formed in the guide pipe, and the first through hole and the second through hole are communicated and coaxially arranged. The diameter of the second through hole is smaller than the size of the first through hole, the first through hole is used for being arranged on a to-be-installed tread sweeper in a sleeving mode, the second through hole is used for limiting a to-be-installed compression spring, the press-fitting rod comprises a downward pressing end and a handle which are connected, the downward pressing end is cylindrical, and the outer circle diameter of the downward pressing end is the same as the diameter of the second through hole; a notch is further formed in the end face of the end, away from the handle, of the downward pressing end, and the notch and the downward pressing end are coaxially arranged. When the tool is used for installing the clamping spring of the tread sweeper, the safe distance when the spring is compressed can be ensured, the correct installation position and direction of the compression spring are ensured, and the compression spring cannot deform or be damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transportation, in particular to a tread cleaner retaining spring installation tool. Background Art

[0002] When installing the spring of the subway train tread cleaning device, the spring must be compressed before it can be inserted into the sleeve, and then the retaining spring is installed to position it. Due to the high potential energy of the compressed spring, mechanical damage may occur during installation. The existing working method has the following problems: 1. During installation, the retaining spring and flat washer may be ejected under force and cause injury, failing to ensure the safety of the operator; 2. The installation method is inefficient, requiring multiple installations to achieve the desired position. Utility Model Content

[0003] In view of this, the problem to be solved by the utility model is to provide a tread sweeper retaining spring installation tool. Using the tool to install the tread sweeper retaining spring can ensure a safe distance when compressing the spring, ensure that the installation position and direction of the compression spring are correct, and the compression spring will not be deformed or damaged.

[0004] The utility model solves the above-mentioned technical problems through the following technical means: The utility model provides a tread sweeper retaining spring installation tool, including an outer guide cylinder and a press-fitting rod, the outer guide cylinder includes a sleeve and a conduit connected, a first through hole is provided in the sleeve, and a second through hole is provided in the conduit, the first through hole and the second through hole are connected and coaxially arranged, the diameter of the second through hole is smaller than the size of the first through hole, the first through hole is used to be sleeved on the tread sweeper to be installed, and the second through hole is used to limit the compression spring to be installed, the press-fitting rod includes a lower pressing end and a handle connected, the lower pressing end is set to be cylindrical, the outer diameter of the lower pressing end is the same as the diameter of the second through hole, and a notch is further provided on the end surface of the lower pressing end away from the handle, and the notch is coaxially arranged with the lower pressing end.

[0005] Furthermore, the height of the guide tube is greater than the height of the portion of the compression spring extending out of the tread cleaner.

[0006] Furthermore, the top end of the second through hole is provided with an outward conical chamfer, and the outer surface of the bottom end of the pressing end is provided with a conical chamfer.

[0007] Furthermore, the recess is configured as a tapered hole, and the minimum end diameter of the tapered hole is larger than the maximum size of the top end of the inner rod of the tread sweeper, so that the top end of the inner rod can be inserted into the tapered hole.

[0008] Furthermore, it also includes an operating table, on which a clamp, a bracket and a hydraulic cylinder are provided. The clamp is fixedly set on the operating table, the hydraulic cylinder is set on the bracket, and the hydraulic cylinder is set directly above the clamp. A positioning block is provided on the clamp, and the positioning block is used to fix the tread sweeper directly below the hydraulic cylinder.

[0009] Furthermore, the end of the piston end of the oil cylinder is provided with a mounting groove matching the end of the handle, and the mounting groove is used to fix the handle on the piston end.

[0010] From the above technical solution, it can be seen that the beneficial effects of the present invention are as follows: the present invention provides a tread sweeper retaining spring installation tool, including an outer guide tube and a press rod, the outer guide tube includes a sleeve and a conduit connected together, a first through hole is provided in the sleeve, a second through hole is provided in the conduit, the first through hole and the second through hole are connected and coaxially arranged, the diameter of the second through hole is smaller than the size of the first through hole, the first through hole is used to be sleeved on the tread sweeper to be installed, the second through hole is used to limit the compression spring to be installed, the press rod includes a downward pressing end and a handle connected together, the downward pressing end is set to be cylindrical, the outer diameter of the downward pressing end is the same as the diameter of the second through hole, and a notch is further provided on the end surface of the downward pressing end away from the handle, the notch is coaxially arranged with the downward pressing end. Using this tool to install the tread sweeper retaining spring can ensure a safe distance when compressing the spring, ensure that the installation position and direction of the compression spring are correct, and the compression spring will not be deformed or damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0012] Figure 1 A schematic diagram of a tread cleaner retaining spring installation tool provided in one embodiment of the present utility model;

[0013] Figure 2 A cross-sectional view of a tread cleaner retaining spring installation tool in use provided by one embodiment of the present utility model;

[0014] Figure 3 A cross-sectional view of a tread cleaner retaining spring installation tool provided in one embodiment of the present invention after installation is completed;

[0015] Figure 4 A schematic diagram of a tread cleaner retaining spring installation tool provided in the second embodiment of the present utility model;

[0016] Reference numerals:

[0017] 1-outer guide cylinder; 2-pressing rod; 3-tread sweeper; 4-inner rod; 5-compression spring; 6-gasket; 7-operating table; 71-bracket; 72-hydraulic cylinder; 73-clamp; 12-conduit; 11-sleeve; 121-second through hole; 111-first through hole; 21-downward pressure end; 22-handle; 211-notch. DETAILED DESCRIPTION

[0018] The following embodiments of the technical solution of the present invention are described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0019] For example 1, please refer to Figures 1 to 3 The utility model provides a tread sweeper retaining spring installation tool, including an outer guide cylinder 1 and a press-fitting rod 2, the outer guide cylinder 1 includes a sleeve 11 and a guide tube 12 connected thereto, the sleeve 11 is provided with a first barrel 111 passing through, the guide tube 12 is provided with a second through hole 121 passing through, the first barrel 111 and the second through hole 121 are connected and coaxially arranged, the diameter of the second through hole 121 is smaller than the size of the first barrel 111, the first barrel 111 is used to be sleeved on the tread sweeper 3 to be installed, the second through hole 121 is used to limit the compression spring 5 to be installed, the press-fitting rod 2 includes a lower pressing end 21 and a handle 22 connected thereto, the lower pressing end 21 is set to be cylindrical, the outer diameter of the lower pressing end 21 is the same as the diameter of the second through hole 121, and a notch 211 is further provided on the end surface of the lower pressing end 21 away from the handle 22, and the notch 211 is coaxially arranged with the lower pressing end 21. When in use, first insert the inner rod 4 into the tread cleaner 3, then put one end of the compression spring 5 on the inner rod 4 and insert it into the tread cleaner 3, then put the sleeve 11 section of the outer guide tube 1 on the tread cleaner 3, and insert the protruding end of the compression spring 5 into the guide tube 12, place the gasket 6 in the guide tube 12 and slide it to the position of the compression spring 5, then insert the lower pressing end 21 of the pressing rod 2 into the guide tube 12 so that it presses against the gasket 6, and then force the pressing rod 2 down so that it compresses the compression spring 5 into the tread cleaner 3, and installs the gasket 6 into the card slot in the tread cleaner 3 to complete the installation. By using this device, the potential energy generated by the deformation of the spring can be overcome to ensure the safe operation of the personnel; it is not only safe and reliable, but also has a light overall quality and is easy to use, saving personnel's physical strength and time, reducing labor intensity, and greatly improving installation efficiency. At the same time, a certain safety distance is maintained when the spring pressing fixture compresses the spring 5 , the installation position and direction of the spring are correct, and the spring will not be deformed or damaged.

[0020] As a further improvement to the above technical solution, the height of the guide tube 12 is greater than the height of the portion of the compression spring 5 extending from the tread cleaner 3. This makes the guide tube 12 greater than the extended length of the compression spring 5 so that after the outer guide tube 1 is sleeved on the tread cleaner 3, the compression spring 5 is completely retained within the guide tube 12, making it easier to insert the press rod 2 into the guide tube 12 to squeeze the compression spring 5.

[0021] As a further improvement to the above technical solution, the top of the second through hole 121 is provided with an outward tapered chamfer, and the outer surface of the bottom end of the lower pressing end 21 is provided with a tapered chamfer. The tapered chamfer facilitates the insertion of the press rod 2 into the conduit 12.

[0022] As a further improvement to the above technical solution, the recess is set as a tapered hole, and the minimum end diameter of the tapered hole is larger than the maximum size of the top end of the inner rod of the tread sweeper, so that the top end of the inner rod can be inserted into the tapered hole.

[0023] The second embodiment further includes an operating table 7, on which a clamp 73, a bracket 71 and a hydraulic cylinder 72 are provided. The clamp 73 is fixedly mounted on the operating table 7, the hydraulic cylinder 72 is mounted on the bracket 71, and the hydraulic cylinder 72 is mounted directly above the clamp 73. The clamp 73 is provided with a positioning block, which is used to fix the tread sweeper 3 directly below the hydraulic cylinder 72. The end of the piston end of the cylinder is provided with a mounting groove that matches the end of the handle 22, and the mounting groove is used to fix the handle 22 on the piston end. By providing the bracket 71 and the hydraulic cylinder 72, the tread sweeper 3 can be directly fixed on the clamp 73, and the press rod 2 can be installed on the piston end of the hydraulic cylinder 72. The spring compression installation is completed by extending the hydraulic cylinder 72. The operation is more convenient and safe, and the operator can save more time and effort, thereby improving construction efficiency.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A tread cleaner retaining spring installation tool, characterized by: The invention comprises an outer guide tube (1) and a press rod (2), wherein the outer guide tube (1) comprises a sleeve (11) and a guide tube (12) which are connected and arranged, wherein a first barrel (111) is provided in the sleeve (11), and a second through hole (121) is provided in the guide tube (12), wherein the first barrel (111) and the second through hole (121) are connected and arranged coaxially, wherein the diameter of the second through hole (121) is smaller than the size of the first barrel (111), and the first barrel (111) is used for being sleeved on the pedal to be installed. On the surface cleaner (3), the second through hole (121) is used to limit the compression spring (5) to be installed, and the pressing rod (2) includes a lower pressing end (21) and a handle (22) connected thereto, the lower pressing end (21) is arranged in a cylindrical shape, the outer diameter of the lower pressing end (21) is the same as the diameter of the second through hole (121), and a notch (211) is further arranged on the end surface of the lower pressing end (21) away from the handle (22), and the notch (211) is arranged coaxially with the lower pressing end (21).

2. The tread cleaner retaining spring installation tool according to claim 1, characterized in that: The height of the guide tube (12) is greater than the height of the portion of the compression spring (5) extending out of the tread sweeper (3).

3. The tread cleaner retaining spring installation tool according to claim 2, characterized in that: The top end of the second through hole (121) is provided with an outward tapered chamfer, and the outer surface of the bottom end of the pressing end (21) is provided with a tapered chamfer.

4. The tread cleaner retaining spring installation tool according to claim 3, characterized in that: The notch (211) is configured as a tapered hole, and the minimum end diameter of the tapered hole is larger than the maximum size of the top end of the inner rod (4) of the tread sweeper (3), so that the top end of the inner rod (4) can be inserted into the tapered hole.

5. The tread cleaner retaining spring installation tool according to claim 1, characterized in that: The invention also includes an operating platform (7), wherein a clamp (73), a bracket (71) and a hydraulic cylinder (72) are provided on the operating platform (7), wherein the clamp (73) is fixedly provided on the operating platform (7), the hydraulic cylinder (72) is provided on the bracket (71), and the hydraulic cylinder (72) is provided directly above the clamp (73), and a positioning block is provided on the clamp (73), and the positioning block is used to fix the tread sweeper (3) directly below the hydraulic cylinder (72).

6. The tread cleaner retaining spring installation tool according to claim 5, characterized in that: The end of the piston end of the oil cylinder is provided with a mounting groove matching the end of the handle (22), and the mounting groove is used to fix the handle (22) on the piston end.

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