Wear-resistant structure of massage gun piston head

Abstract

The invention relates to a wear-resistant structure of a massage gun piston head. The wear-resistant structure comprises a moving shaft (10), a shaft sleeve (20) and a friction protection body (100),wherein the moving shaft (10) is arranged in the shaft sleeve (20); the moving shaft (10) can reciprocate back and forth in the shaft sleeve (20); a massage head (40) is detachably arranged at the front end of the moving shaft (10); the friction protection body (100) covers the moving shaft (10); meanwhile, the friction protection body (100) is located between the moving shaft (10) and the shaft sleeve (20); when the moving shaft (10) reciprocates back and forth in the shaft sleeve (20), the friction protection body (100) and the moving shaft (10) move synchronously; and at the moment, friction force is generated between the friction protection body (100) and the shaft sleeve (20), the moving shaft (10) is not in contact with the shaft sleeve (20), and the material hardness of the frictionprotection body (100) is larger than that of the shaft sleeve (20).

Description

technical field [0001] The invention relates to an anti-wear structure, in particular to an anti-wear structure of a motion shaft used in a massage gun. Background technique [0002] As everyone knows, various massage equipments have been generally accepted by people now, and its principle of various massage equipments is roughly by beating human body repeatedly, reaches the effect that human body muscle is relaxed. At present, among all kinds of massage equipment, massage guns are the most commonly used, such as figure 1 As shown, a traditional massage gun generally includes a gun body (1) and a massage head (2). When in use, the massage head (2) is assembled at the front end of the gun body (1), and the gun body (1) drives the massage head (2) before and after Reciprocating movement, in order to achieve the effect of repeatedly hitting the human body to relax the muscles in specific positions of the human body. Such as figure 1 , 2 , 3, in order to enable the massage h...

AI Technical Summary

Problems solved by technology

[0008] However, the disadvantage of the second option is that since the material hardness of the shaft sleeve (6) is higher than or equal to that of the motion shaft (5), the motion shaft (5) will inevitably be worn after a long time of work, thereby increasing the The gap between the motion shaft (5) and the shaft sleeve (6) will affect the stability of the product and greatly increase the working noise of the product

[0009] Additionally, if figure 2 , 3 As shown, in the traditional massage gun, the massage head (2) is directly inserted into the motion shaft (5). cooperation relationship

[0010] When the fit gap between the massage head (2) and the motion shaft (5) is too large, although it is convenient for the user to plug in and out, the excessive fit gap often causes the massage head (2) to lose its position when working. tilting phenomenon

[0011] When the matching gap between the massage head (2) and the motion shaft (5) is too small, although the massage head (2) can be stably and safely inserted into the motion shaft (5), the user needs to spend a lot of time The massage head (2) can be pulled out for replacement only with sufficient strength, which greatly reduces the experience of use

[0012] like figure 2 , 3 As shown, at the same time, if the massage head (2) is matched with the massage head (2) by slotting in the motion shaft (5) (for example: opening track grooves, etc.), the wall thickness (H) of the motion shaft (5) will inevitably be reduced , thereby greatly reducing the structural strength of the motion axis (5)

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