A metal-rubber piece blasting protection device based on a conical surface bonding area

By designing a metal-rubber sandblasting protection device based on the conical bonding area, the problem of low reliability of traditional protection methods during sandblasting is solved, achieving effective protection of the conical bonding area and saving tape usage.

CN224464469UActive Publication Date: 2026-07-07WUHU STATE-OWNED FACTORY OF MACHINING

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHU STATE-OWNED FACTORY OF MACHINING
Filing Date
2025-06-24
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Traditional protection methods have low reliability in the metal-rubber conical bonding area during sandblasting, and are prone to protection failure.

Method used

Design a sandblasting protection device that includes an upper protective component, a lower protective component, and a rotating component. Utilize a metal device instead of adhesive tape for protection to ensure complete coverage of the conical bonding area and rotational contact with the sand and gravel.

Benefits of technology

It improves the protective reliability of the conical bonding area, reduces tape waste and cleaning time, avoids tape contamination, and simplifies the protective workflow.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to metal - rubber spare manufacturing technical field, concretely is a kind of metal - rubber spare sand blasting protection device based on taper bonding area, it includes: upper protective subunit, for the protection of metal - rubber spare upper portion and top portion;Lower protective subunit is connected with the upper protective subunit thread, for the protection of metal - rubber spare lower portion;Rotary subunit, from bottom into metal - rubber spare and cooperate with it, for driving metal - rubber spare rotation.The utility model utilizes metal device to replace adhesive tape to carry out protection, improves the reliability of protection, especially the reliability of target metal - rubber spare skeleton top taper;Utilize metal device to replace adhesive tape to carry out protection, reduce the waste of consumable adhesive tape;Device design is simple, and the protection work time length of reduction;Utilize metal device to replace adhesive tape to carry out protection, eliminate the pollution of adhesive tape adhesion to target metal - rubber spare.It reduces the work time length of subsequent cleaning.
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Description

Technical Field

[0001] This utility model relates to the field of metal-rubber parts manufacturing technology, specifically a metal-rubber parts sandblasting protection device based on the conical bonding area. Background Technology

[0002] Before applying adhesive to metal-rubber parts, a sandblasting process is required to sandblast the bonding area. However, for some metal-rubber parts, the bonding area is conical, and there is a very small cone-shaped interference at the upper end of the bonding area. Its structure is as follows: Figure 1 and Figure 2 As shown, the traditional protective methods have low reliability during sandblasting, and are prone to protection failure. To address the low reliability of traditional protective methods during sandblasting caused by the interference structure at the bonding surface of metal-rubber parts, a dedicated sandblasting protective fixture is designed to improve the protection effect on non-bonded areas of such metal-rubber parts during the sandblasting process. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model proposes a metal-rubber part sandblasting protection device based on the conical bonding area.

[0004] The technical problem to be solved by this utility model is achieved by the following technical solution:

[0005] A sandblasting protection device for metal-rubber parts based on a conical bonding area includes:

[0006] Upper protective component, used to protect the upper part and top of metal-rubber parts;

[0007] The lower protective component is threadedly connected to the upper protective component and is used to protect the lower part of the metal-rubber component;

[0008] The rotating component extends from the bottom into the metal-rubber part to engage with it, thereby driving the metal-rubber part to rotate and ensuring that the bonding surface on the metal-rubber part is in complete contact with the gravel.

[0009] As a further improvement of this utility model, the top of the upper protective component is provided with an upper protective outer end face, and a conical protective component is provided above the upper protective outer end face. A conical connecting component is connected between the conical protective component and the upper protective outer end face. The interior of the conical protective component is provided with a conical protective fitting surface that fits against the top conical surface of the metal-rubber component skeleton.

[0010] As a further improvement of this utility model, the upper protective component has an inner fitting surface that fits with the metal-rubber skeleton shell, and the bottom inner side of the upper protective component has an internal thread groove that is threadedly connected to the lower protective component.

[0011] As a further improvement of this utility model, the lower protective component has an inner fitting surface that fits with the metal-rubber skeleton shell, a bottom surface at the bottom, and an external thread groove at the top that mates with the internal thread groove.

[0012] As a further improvement of this utility model, the bottom surface of the metal-rubber skeleton of the assembled metal-rubber part is located above the bottom surface of the lower protective component.

[0013] As a further improvement of this utility model, the rotating component includes a symmetrical elastic pressure relief part and two fixing pins disposed at the top of the symmetrical elastic pressure relief part, the two fixing pins being matched with the through hole size of the metal-rubber skeleton.

[0014] The beneficial effects of this utility model are:

[0015] This invention utilizes a metal device instead of adhesive tape for protection, improving the reliability of the protection, especially the reliability of the top conical surface of the target metal-rubber component skeleton. Using a metal device instead of adhesive tape reduces the waste of consumable tape. The device design is simple, reducing the protection working time. Furthermore, using a metal device instead of adhesive tape eliminates the contamination of the target metal-rubber component by adhesive residue from the tape, thus reducing the time required for subsequent cleaning. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a schematic diagram of a metal-rubber component structure.

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of a metal-rubber component;

[0019] Figure 3 This is a schematic diagram of the external structure of the upper protective component;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the upper protective component;

[0021] Figure 5 This is a schematic diagram of the external structure of the lower protective component;

[0022] Figure 6 This is a schematic diagram of the cross-sectional structure of the lower protective component;

[0023] Figure 7 This is a schematic diagram of the external structure of the rotating component;

[0024] Figure 8 This is a schematic diagram of the external structure of the protective device in use.

[0025] Figure 9 This is a cross-sectional structural diagram of the protective device in use.

[0026] In the picture:

[0027] 1. Upper protective component; 101. Conical protective component; 102. Conical connecting component; 103. Outer end face of upper protective component; 104. Inner mating surface of upper protective component; 105. Mating surface of conical protective component; 106. Internal thread groove;

[0028] 2. Lower protective component; 201. Inner mating surface of the lower protective component; 202. Bottom surface of the lower protective component; 203. External threaded groove;

[0029] 3. Rotating component; 301. Symmetrical elastic pressure relief section; 302. Fixing pin;

[0030] 4. Metal-rubber component; 401. Metal-rubber component skeleton shell; 402. Top conical surface of metal-rubber component skeleton; 403. Bottom surface of metal-rubber component skeleton; 404. Inner wall of metal-rubber component skeleton; 405. Through hole of metal-rubber component skeleton. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0032] A metal-rubber sandblasting protection device based on a conical bonding area mainly consists of an upper protective component 1, a lower protective component 2, and a rotating component 3.

[0033] The upper protective component 1 is used to protect the upper part and top of the metal-rubber component 4. For example... Figure 3 and Figure 4 As shown, the top of the upper protective component 1 is provided with an upper protective outer end face 103, and a conical protective component 101 is provided above the upper protective outer end face 103. The conical protective component 101 is welded to the upper protective outer end face 103 through a conical connector 102. Through the conical connector 102, the conical protective component 101 and the upper protective component 1 form an inseparable whole. The interior of the upper protective component 1 is provided with an inner fitting surface 104 that fits with the metal-rubber skeleton shell 401. The interior of the conical protective component 101 is provided with a conical protective fitting surface 105 that fits with the top conical surface 402 of the metal-rubber skeleton. The bottom of the upper protective component 1 is provided with an internal threaded groove 106.

[0034] The lower protective component 2 is used to protect the lower part of the metal-rubber component 4, and its top is threadedly connected to the bottom of the upper protective component 1. Figure 5 and Figure 6 As shown, the lower protective component 2 has an inner contact surface 201 that fits with the metal-rubber skeleton shell 401, a bottom surface 202, and an external thread groove 203 that mates with the internal thread groove 106.

[0035] The rotating component 3 extends from the bottom into and engages with the metal-rubber component 4, driving the metal-rubber component 4 to rotate and ensuring that the adhesive surface on the metal-rubber component 4 is in complete contact with the gravel. Figure 7 As shown, the rotating component 3 includes a symmetrical elastic pressure relief part 301 and two fixing pins 302 disposed at the top of the symmetrical elastic pressure relief part 301. The two fixing pins 302 are matched with the size of the through hole 405 of the metal-rubber skeleton.

[0036] Working principle and usage process of this utility model:

[0037] In use, first assemble the metal-rubber skeleton shell 401 of the metal-rubber part 4 with the inner mating surface 104 of the upper protective component 1 to ensure that the top conical surface 402 of the metal-rubber skeleton of the metal-rubber part 4 is in contact with the conical protective mating surface 105 inside the conical protective component 101. The conical protective mating surface 105 protects the top conical surface 402 of the metal-rubber skeleton of the metal-rubber part 4; the inner mating surface 104 of the upper protective component protects the top conical surface 402 of the metal-rubber skeleton of the metal-rubber part 4.

[0038] Next, the metal-rubber skeleton shell 401 of the metal-rubber component 4 is assembled with the inner mating surface 201 of the lower protective component 2 to ensure that the bottom surface 403 of the metal-rubber skeleton of the metal-rubber component 4 is above the bottom surface 202 of the lower protective component; the external thread groove 203 at the top of the lower protective component 2 is threadedly connected with the internal thread groove 106 at the bottom of the upper protective component 1 to achieve full protection for the metal-rubber skeleton shell 401 of the metal-rubber component 4.

[0039] Furthermore, due to the presence of the conical connector 102, the sandblasting effect is poor in the projected area of ​​the conical connector 102 along the sandblasting direction during actual sandblasting. Therefore, by rotating the component 3, an external force is applied to the symmetrical elastic loosening part 301, causing the rotating component 3 to undergo elastic deformation, ensuring that the parts of the two fixing pins 302 engage with the through holes 405 of the metal-rubber skeleton on the metal-rubber component 4, such as... Figure 8 and Figure 9 As shown. After the mating is completed, rotate around the axis of symmetry of the rotating component 3 and continue sandblasting to ensure that the metal-rubber bonding surface that is blocked by the conical connector 102 can directly contact the sand and gravel until the bonding requirements are met.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A metal-rubber part sandblasting protection device based on a conical bonding area, characterized in that: include: Upper protective component (1) is used to protect the upper part and top of the metal-rubber component (4); The lower protective component (2) is threadedly connected to the upper protective component (1) and is used to protect the lower part of the metal-rubber component (4); The rotating component (3) extends from the bottom into the metal-rubber component (4) to cooperate with it, thereby driving the metal-rubber component (4) to rotate and ensuring that the bonding surface on the metal-rubber component (4) is in complete contact with the gravel.

2. The metal-rubber part sandblasting protection device based on the conical bonding area according to claim 1, characterized in that: The top of the upper protective component (1) is provided with an upper protective outer end face (103), and a conical protective component (101) is provided above the upper protective outer end face (103). A conical connector (102) is connected between the conical protective component (101) and the upper protective outer end face (103). The interior of the conical protective component (101) is provided with a conical protective bonding surface (105) that fits against the top conical surface (402) of the metal-rubber component skeleton.

3. The metal-rubber part sandblasting protection device based on the conical bonding area according to claim 2, characterized in that: The upper protective component (1) has an inner contact surface (104) that fits with the metal-rubber skeleton shell (401), and the bottom inner side of the upper protective component (1) has an internal thread groove (106) that is threadedly connected to the lower protective component (2).

4. The metal-rubber part sandblasting protection device based on the conical bonding area according to claim 3, characterized in that: The lower protective component (2) has an inner contact surface (201) that fits with the metal-rubber skeleton shell (401), a bottom surface (202) at the bottom, and an external thread groove (203) at the top that engages with the internal thread groove (106).

5. The metal-rubber part sandblasting protection device based on the conical bonding area according to claim 4, characterized in that: In the assembled state, the bottom surface (403) of the metal-rubber skeleton of the metal-rubber part (4) is located above the bottom surface (202) of the lower protective component.

6. The metal-rubber part sandblasting protection device based on the conical bonding area according to claim 1, characterized in that: The rotating component (3) includes a symmetrical elastic pressure relief part (301) and two fixing pins (302) disposed at the top of the symmetrical elastic pressure relief part (301). The two fixing pins (302) are matched with the size of the through hole (405) of the metal-rubber skeleton.