Tool for pulling out one-way valve

Abstract

The tool comprises a tool rod and an elastic rod, the lower end of the elastic rod is fixed to the tool rod, a sliding rod part is arranged on the lower portion of the elastic rod, a pulling-out sliding block is connected to the sliding rod part in a sliding mode, an elastic combination part is arranged on the upper portion of the elastic rod, and a limiting table is arranged at the upper end of the elastic combination part. A conical head part is arranged on the upper portion of the limiting table, a through hole is formed in the elastic combination part, an axial positioning block is arranged in the middle of the elastic rod, an open groove is formed in the bottom of the axial positioning block, a threaded part is arranged in the middle of the elastic rod, and a positioning nut is connected to the threaded part and located below the axial positioning block. A limiting ring is arranged at the transition position of the threaded part and the sliding rod part, and the sliding rod part is higher than the pulled-out sliding block. The tool reduces the damage degree to the surface of the part in the pulling-out process and improves the repeated utilization rate of the part.

Description

Technical Field

[0001] The utility model relates to the technical field of one-way valve disassembly, in particular to a tool for removing a one-way valve. Background Art

[0002] One-way valves have been increasingly used in automobile engines. They play a vital role in stabilizing oil pressure and preventing oil backflow. When installing the one-way valve, the one-way valve is pressed in by external force. Due to the deep installation position, it is difficult to remove the one-way valve. The disassembly tool of the one-way valve generally consists of a pull-out slider and a tool rod. External force is used to insert the tool head into the one-way valve. When the tool head contacts the inner surface of the one-way valve, the tool is manually pulled out to take the one-way valve out. The purpose of removing the one-way valve is to reuse the parts that match it. Experienced employees control the axial distance by hand and still damage the surface quality of the parts when removing it. In order to solve the above problems, a tool for removing the one-way valve is proposed. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a tool for removing a one-way valve, thereby reducing the degree of damage to the surface of the part during the removal process, improving the reuse rate of the part, and effectively solving the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tool for removing a one-way valve, comprising a tool rod and an elastic rod, the lower end of the elastic rod is fixed on the tool rod, a sliding rod portion is provided at the lower part of the elastic rod, a pulling-out slider is slidably connected to the sliding rod portion, an elastic coupling portion is provided at the upper part of the elastic rod, a limiting platform is provided at the upper end of the elastic coupling portion, a conical head portion is provided at the upper part of the limiting platform, a through hole is provided on the elastic coupling portion, an axial positioning block is provided in the middle part of the elastic rod, and an open groove is provided at the bottom of the axial positioning block.

[0005] Furthermore, a threaded portion is provided in the middle of the elastic rod, a positioning nut is connected to the threaded portion, and the positioning nut is located below the axial positioning block.

[0006] Furthermore, a limit ring is provided at the transition between the threaded portion and the slide rod portion, and the height of the slide rod portion is greater than the height of the pull-out slider.

[0007] Furthermore, an anti-slip baffle is provided on the outer side of the opening slot, and the anti-slip baffle is fixed to the axial positioning block by screws.

[0008] Furthermore, the axial positioning block is configured as a U-shaped structure.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] Under the action of extrusion pressure, the elastic joint shrinks. After reaching a certain position requirement, the elastic joint expands. The upper end of the axial positioning block is used to abut against the one-way valve to limit the insertion depth of the elastic joint and prevent the cone head from contacting the bottom of the one-way valve. The tooling is easy and reliable to operate, with low skill requirements and little damage to parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the front view structure of the utility model;

[0013] Figure 3 It is a schematic diagram of the top view structure of the utility model.

[0014] In the figure: 1 tooling rod, 2 pull-out slider, 3 limiting ring, 4 anti-slip baffle, 5 opening groove, 6 axial positioning block, 7 through hole, 8 cone head, 9 limiting platform, 10 elastic joint part, 11 elastic rod, 12 positioning nut, 13 threaded part, 14 sliding rod part. DETAILED DESCRIPTION

[0015] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0016] See also Figure 1-3The utility model provides a technical solution: a tool for removing a one-way valve, comprising a tool rod 1 and an elastic rod 11. The lower end of the elastic rod 11 is fixed to the tool rod 1. A sliding rod portion 14 is provided at the lower part of the elastic rod 11. A pulling slider 2 is slidably connected to the sliding rod portion 14. An elastic joint portion 10 is provided at the upper part of the elastic rod 11. A limiting platform 9 is provided at the upper end of the elastic joint portion 10. A conical head 8 is provided at the upper part of the limiting platform 9. The conical head 8 facilitates the elastic joint portion 10 to be inserted into the one-way valve hole. Under the action of the extrusion force, the elastic joint portion 10 contracts. After reaching a certain position requirement, the elastic coupling part 10 is stretched open, and a through hole 7 is provided on the elastic coupling part 10. The through hole 7 can cause the elastic coupling part 10 to deform under the action of external force. An axial positioning block 6 is provided in the middle of the elastic rod 11, and an open groove 5 is provided at the bottom of the axial positioning block 6. The open groove 5 facilitates the axial positioning block 6 to be removed from the elastic rod 11, and facilitates the replacement of axial positioning blocks 6 of different sizes. The upper end of the axial positioning block 6 is used to abut against the one-way valve to limit the insertion depth of the elastic coupling part 10 and prevent the cone head 8 from contacting the bottom of the one-way valve.

[0017] A threaded portion 13 is provided in the middle of the elastic rod 11, and a positioning nut 12 is connected to the threaded portion 13. The positioning nut 12 is located below the axial positioning block 6. By adjusting the positioning nut 12, the position of the axial positioning block 6 can be changed, and the insertion depth of the elastic coupling portion 10 can be adjusted to meet usage requirements.

[0018] A limit ring 3 is provided at the transition between the threaded portion 13 and the slide rod portion 14, which separates the threaded portion 13 from the slide rod portion 14 through the limit ring 3. The height of the slide rod portion 14 is greater than the height of the pull-out slider 2. The slider 2 is pulled out by manually moving it outward quickly. The limit platform 9 on the end face of the tooling fits and hooks the inner surface of the one-way valve and then the one-way valve is pulled out. The surface quality of the part will not be damaged, the operation is convenient, the operating efficiency and the appearance of the part are greatly improved, and the skill requirements for personnel are reduced.

[0019] An anti-slip baffle 4 is provided on the outside of the opening groove 5, and the anti-slip baffle 4 is fixed to the axial positioning block 6 by screws. The opening groove 5 is blocked by the anti-slip baffle 4 to prevent the axial positioning block 6 from falling off the elastic rod 11. This structure facilitates the disassembly of the axial positioning block 6 and is more flexible to use.

[0020] The axial positioning block 6 is configured as a U-shaped structure.

[0021] During use: shrink the elastic joint 10 of the tool head and insert it into the one-way valve hole, use the axial positioning block 6 to prevent the tool head from contacting the bottom of the one-way valve, and after reaching a certain position requirement, the elastic joint 10 is stretched open, and the pull-out slider 2 is moved to the lowest end, and the pull-out slider 2 is manually moved outward quickly. The limit platform 9 of the tool is fitted with the inner surface of the one-way valve and the one-way valve is pulled out.

[0022] The above shows and describes the basic principles, main features and advantages of the present invention. Without departing from the spirit and scope of the present invention, the present invention may also have various changes and improvements, which fall within the scope of the present invention to be protected.

Claims

1. A tool for removing a one-way valve, comprising a tool rod (1) and an elastic rod (11), characterized in that: The lower end of the elastic rod (11) is fixed on the tooling rod (1), the lower part of the elastic rod (11) is provided with a slide rod portion (14), the slide rod portion (14) is slidably connected with a pull-out slider (2), the upper part of the elastic rod (11) is provided with an elastic joint portion (10), the upper end of the elastic joint portion (10) is provided with a limit platform (9), the upper part of the limit platform (9) is provided with a cone head (8), the elastic joint portion (10) is provided with a through hole (7), the middle part of the elastic rod (11) is provided with an axial positioning block (6), and the bottom of the axial positioning block (6) is provided with an open groove (5).

2. The tool for removing a one-way valve according to claim 1, characterized in that: A threaded portion (13) is provided in the middle of the elastic rod (11), and a positioning nut (12) is connected to the threaded portion (13). The positioning nut (12) is located below the axial positioning block (6).

3. The tool for removing a one-way valve according to claim 2, characterized in that: A limiting ring (3) is provided at the transition between the threaded portion (13) and the slide rod portion (14), and the height of the slide rod portion (14) is greater than the height of the pull-out slider (2).

4. The tool for removing a one-way valve according to claim 1, characterized in that: An anti-slip baffle (4) is provided on the outer side of the opening slot (5), and the anti-slip baffle (4) is fixed to the axial positioning block (6) by screws.

5. The tool for removing a one-way valve according to claim 1, characterized in that: The axial positioning block (6) is configured as a U-shaped structure.

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