A cylindrical cavity inside the edge removal tool

By designing a burr removal tool with a palm support rod, a limiting seat, and a protective structure inside a cylindrical cavity, the problem of traditional tools being inconvenient to move has been solved. This achieves convenient burr removal and prevents pinching and clogging, thus improving the tool's usability and processing efficiency.

CN224527080UActive Publication Date: 2026-07-21SUZHOU YOULONG PLASTIC RUBBER PRECISION MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU YOULONG PLASTIC RUBBER PRECISION MFG CO LTD
Filing Date
2025-07-22
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Traditional tools for removing burrs inside cylindrical cavities are inconvenient to move, resulting in poor usability and difficulty in quickly and effectively removing burrs from the inner holes.

Method used

A tool for removing burrs inside a cylindrical cavity was designed, comprising a palm support rod, a limiting seat, a moving structure, and a protective structure. The tool uses a moving chuck to clamp the burrs and pull them upwards, while a sealing ring and a baffle prevent hand pinching and blockage.

Benefits of technology

It enables convenient removal of burrs, improves the applicability and convenience of the tool, increases product yield and processing efficiency, and prevents hand pinching and clogging.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of cylinder processing, provide a kind of cylindrical cavity inner burr removal tool, including palm support rod and connecting rod, the lower portion of palm support rod is provided with limit seat, the both sides of limit seat top are fixed with connecting rod, the inside of limit seat is penetrated with moving structure, the moving structure includes fixed rod penetrated in the inside of limit seat, the bottom of fixed rod is fixed with moving chuck.The utility model is provided with moving structure, moves to cylindrical cavity inner burr with moving chuck, holds the finger holding rod by hand, at this time, moving chuck is displaced upward, and the bottom of limit seat is adhered to thereby clamps burr, at this time, driving device is pulled up, burr can be removed, so as to improve product yield and personnel processing efficiency, realize the function that the device is convenient for removing burr, so as to improve the applicability of the cylindrical cavity inner burr removal tool when using.
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Description

Technical Field

[0001] This utility model relates to the field of cylindrical machining technology, and in particular to a tool for removing burrs inside a cylindrical cavity. Background Technology

[0002] Cylindrical parts, such as automotive spark plug protectors, often have burrs remaining on the inner wall or port of the cylinder cavity after casting, stamping, and machining. These burrs not only affect the assembly accuracy of the parts, but may also lead to problems such as sealing failure and accelerated wear. In order to remove the burrs in the cylinder cavity, a burr removal tool for the cylinder cavity is used.

[0003] Traditional cylindrical cavity burr removal tools are designed to remove deep burrs inside the cavity. The conventional method is to remove them with tweezers, but this is inconvenient to use and quick to remove the burrs, making them unsuitable for use. Utility Model Content

[0004] The purpose of this invention is to provide a tool for removing burrs inside a cylindrical cavity, in order to solve the problem that existing tools for removing burrs inside a cylindrical cavity are inconvenient to move.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a tool for removing burrs inside a cylindrical cavity, including a palm support rod and a connecting rod;

[0006] A limiting seat is provided below the palm support rod, and connecting rods are fixed on both sides of the top of the limiting seat. A movable structure runs through the inside of the limiting seat.

[0007] The movable structure includes a fixed rod that passes through the interior of the limiting seat. A movable clamp is fixed to the bottom end of the fixed rod, a finger gripping rod is fixed to the top end of the fixed rod, and a return spring is fixed to the top end of the finger gripping rod.

[0008] The bottom of the limiting seat is provided with a protective structure.

[0009] When using this device, the movable structure facilitates the removal of burrs, thereby improving the applicability of the burr removal tool inside the cylindrical cavity. The protective structure prevents pinching and clogging, further enhancing the ease of use of the burr removal tool inside the cylindrical cavity.

[0010] Preferably, the top end of the connecting rod passes through the finger gripping rod and is fixedly connected to the bottom end of the palm support rod.

[0011] Preferably, the finger gripping rod and the connecting rod form a sliding structure, and the fixing rod and the limiting seat form a sliding structure.

[0012] Preferably, the finger gripping rod and the fixed rod form a telescopic structure through a return spring. When the movable clamp is moved to the burr inside the cylindrical cavity and the finger gripping rod is grasped, the movable clamp moves upward and fits against the bottom end of the limiting seat, thereby clamping the burr.

[0013] Preferably, the top end of the return spring is fixedly connected to the bottom end of the palm support rod. At this time, the drive device pulls upwards, removing burrs and thus improving product yield and worker processing efficiency.

[0014] Preferably, the protective structure includes a sealing ring, a placement groove, a cavity, and a baffle. The placement groove is located at the bottom of the limiting seat, and the sealing ring is disposed inside the placement groove. The sealing ring has a cavity inside, and a baffle is fixed to the bottom end of the finger gripping rod on one side of the connecting rod. The baffle prevents fingers from being pinched in the gap between the finger gripping rod and the connecting rod. The placement groove engages and secures the sealing ring with the limiting seat.

[0015] Preferably, the sealing ring and the limiting seat form an engaging structure through a placement groove, with the inner side of the sealing ring contacting the outer side of the fixing rod. The sealing ring enhances the sealing between the fixing rod and the limiting seat, preventing burrs from entering the limiting seat and causing blockage.

[0016] The advantages of the tool for removing burrs inside a cylindrical cavity provided by this utility model are as follows:

[0017] By incorporating a movable structure, the movable chuck is moved to the burr inside the cylindrical cavity. The fingers grip the rod, and the movable chuck moves upward to fit against the bottom of the limiting seat, thus clamping the burr. This causes the device to pull upward, removing the burr and improving product yield and processing efficiency. This device facilitates burr removal and enhances the applicability of the burr removal tool for the cylindrical cavity.

[0018] By incorporating a protective structure, the baffle prevents fingers from being pinched in the gap between the finger gripping rod and the connecting rod. The placement groove ensures that the sealing ring and the limiting seat are interlocked and fixed. The sealing ring also enhances the sealing between the fixing rod and the limiting seat, preventing the removed burrs from entering the limiting seat and causing blockage. This device achieves the functions of preventing finger pinching and blockage, thereby improving the convenience of using the burr removal tool inside the cylindrical cavity. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2This is a schematic diagram of the three-dimensional first-view structure of the main cross-section of this utility model;

[0021] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0022] Figure 4 This is a side view cross-sectional three-dimensional structural schematic diagram of the present invention;

[0023] Figure 5 This is a schematic diagram of the three-dimensional second-view structure of the main cross-section of this utility model.

[0024] The following are the annotations in the figure: 1. Hand support rod; 2. Connecting rod; 3. Moving structure; 301. Finger gripping rod; 302. Moving clamp; 303. Fixed rod; 304. Return spring; 4. Limit seat; 5. Protective structure; 501. Sealing ring; 502. Placement groove; 503. Cavity; 504. Baffle. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-5 This utility model provides a tool for removing burrs inside a cylindrical cavity, including a palm support rod 1 and a connecting rod 2. A limiting seat 4 is provided below the palm support rod 1. Connecting rods 2 are fixed on both sides of the top of the limiting seat 4. A movable structure 3 passes through the inside of the limiting seat 4. The movable structure 3 includes a fixed rod 303 passing through the inside of the limiting seat 4. A movable clamp 302 is fixed at the bottom of the fixed rod 303. A finger gripping rod 301 is fixed at the top of the fixed rod 303. A return spring 304 is fixed at the top of the finger gripping rod 301. The finger gripping rod 301 and the connecting rod 2 form a sliding structure. The fixed rod 303 and the limiting seat 4 form a sliding structure. The finger gripping rod 301 and the fixed rod 303 form a telescopic structure through the return spring 304. The top of the return spring 304 is fixedly connected to the bottom of the palm support rod 1. The top of the connecting rod 2 passes through the finger gripping rod 301 and is fixedly connected to the bottom of the palm support rod 1.

[0027] Reference Figure 2 and Figure 4As shown, during use, the operator holds the finger gripping rod 301 and the palm support rod 1, moves the movable clamp 302 into the cylindrical cavity, aligns it with the burr, and moves the finger gripping rod 301 outside the connecting rod 2 by gripping the finger gripping rod 301, compressing the return spring 304. The finger gripping rod 301 drives the movable clamp 302 to move upward through the fixed rod 303, so that the top of the movable clamp 302 fits against the bottom of the limiting seat 4 to clamp the burr. At this time, the drive device is pulled upward to remove the burr. Under the elastic force of the return spring 304, the finger gripping rod 301 will return to its original position, so that the burr is separated from the movable clamp 302 and the limiting seat 4.

[0028] The bottom of the limiting seat 4 is provided with a protective structure 5, which includes a sealing ring 501, a placement groove 502, a cavity 503 and a baffle 504. The placement groove 502 is opened at the bottom of the limiting seat 4, and the sealing ring 501 is provided inside the placement groove 502. The cavity 503 is provided inside the sealing ring 501. The bottom end of the finger gripping rod 301 on one side of the connecting rod 2 is fixed with a baffle 504. The sealing ring 501 and the limiting seat 4 form a locking structure through the placement groove 502. The inner side of the sealing ring 501 is in contact with the outer side of the fixing rod 303.

[0029] Reference Figure 3 and Figure 4 As shown, under the action of the baffle 504, the fingers are prevented from being pinched by the gap between the finger gripping rod 301 and the connecting rod 2. The sealing ring 501 is moved into the inside of the placement groove 502, so that the sealing ring 501 and the limiting seat 4 are locked together. Under the action of the sealing ring 501, the sealing between the fixing rod 303 and the limiting seat 4 is enhanced, and the removed burrs are prevented from entering the inside of the limiting seat 4 and causing blockage.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cylindrical cavity inside the edge removal tool, comprising a palm support rod (1) and a connecting rod (2); Characterized in that: The lower part of the palm support rod (1) is provided with a limiting seat (4), both sides of the top end of the limiting seat (4) are fixed with connecting rods (2), and the inside of the limiting seat (4) penetrates a moving structure (3); The moving structure (3) comprises a fixed rod (303) penetrating the inside of the limiting seat (4), the bottom end of the fixed rod (303) is fixed with a moving chuck (302), the top end of the fixed rod (303) is fixed with a finger holding rod (301), and the top end of the finger holding rod (301) is fixed with a reset spring (304); The bottom of the limiting seat (4) is provided with a protection structure (5).

2. A tool for deburring the interior of a cylindrical cavity as defined in claim 1, wherein: The top end of the connecting rod (2) penetrates the finger holding rod (301) and is fixedly connected with the bottom end of the palm support rod (1).

3. A tool for deburring the interior of a cylindrical cavity as defined in claim 1, wherein: The finger holding rod (301) and the connecting rod (2) constitute a sliding structure, and the fixed rod (303) and the limiting seat (4) constitute a sliding structure.

4. A tool for deburring the interior of a cylindrical cavity as defined in claim 1, wherein: The finger holding rod (301) and the fixed rod (303) constitute an extension structure through the reset spring (304).

5. A tool for deburring the interior of a cylindrical cavity as defined in claim 1, wherein: The top end of the reset spring (304) is fixedly connected with the bottom end of the palm support rod (1).

6. A bur tool for use in a cylindrical cavity according to claim 1, wherein: The protection structure (5) comprises a sealing ring (501), a placing groove (502), a cavity (503) and a baffle (504), the placing groove (502) is opened in the bottom of the limiting seat (4), the inside of the placing groove (502) is provided with the sealing ring (501), the inside of the sealing ring (501) is provided with the cavity (503), and the bottom end of the connecting rod (2) and the finger holding rod (301) on one side are fixedly connected with the baffle (504).

7. A bur tool for use in a cylindrical cavity according to claim 6, wherein: The sealing ring (501) and the limiting seat (4) constitute a clamping structure through the placing groove (502), and the inside of the sealing ring (501) is in contact with the outside of the fixed rod (303).