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CN-224224844-U - Tyre air tap cap

CN224224844UCN 224224844 UCN224224844 UCN 224224844UCN-224224844-U

Abstract

The application relates to a tire air valve cap which comprises a cap body and a screw head which are axially clamped, wherein the cap body is provided with a cavity, a fixing groove is formed in the cavity, a buckle is arranged on the cap body, a buckling position is formed on the buckling surface of the buckle and the screw head, a flange is arranged on the periphery of the screw head, the surface, which is in contact with the buckling position, is a buckling position plane, a compression spring is arranged between the cap body and the screw head, the compression spring pushes the screw head to the buckling position through elasticity, the buckling position plane is enabled to be abutted against the buckling position, bidirectional fixation is achieved, and the screw head and the cap body are located at positions which are mutually abutted in the axial direction under normal conditions by virtue of the compression spring, so that the cap body rotates relative to the screw head when the cap body is rotated, and the screw head is prevented from being disassembled.

Inventors

  • JIANG WEI
  • LI ZHIQIN

Assignees

  • 蒋伟

Dates

Publication Date
20260512
Application Date
20250624

Claims (10)

  1. 1. The tire air tap cap is characterized by comprising a cap body and a screw thread head (1) which are axially clamped, wherein the cap body is provided with a cavity, a fixing groove (31) is formed in the cavity, the cap body is provided with a buckle (32), and a buckling position (3202) is formed by the buckle (32) and the clamping surface of the screw thread head (1); A flange (11) is arranged on the periphery of the screw head (1), and the surface of the flange (11) abutted against the buckling position (3202) is a buckling position plane (1101); A compression spring (4) is arranged between the cap body and the screw tooth head (1), the screw tooth head (1) is pushed to the buckling position (3202) by the compression spring (4) through elasticity, so that the buckling position plane (1101) is stopped against the buckling position (3202), and bidirectional fixation is realized; The screw head (1) is also provided with a bolt (5), and when the cap body moves along the screw head (1) axially, the bolt (5) slides in the fixing groove (31) and forms circumferential constraint.
  2. 2. Tyre valve cap according to claim 1, wherein a plurality of groups of symmetrical fixing grooves (31) are provided in the chamber, a plurality of buckles (32) are formed between adjacent fixing grooves (31), and the plurality of buckles (32) and the engagement surface of the screw head (1) jointly define a buckle position (3202).
  3. 3. Tyre valve cap according to claim 1, wherein said cap body comprises an outer cap (2) and an inner liner (3), said inner liner (3) being embedded inside the outer cap (2); one end of the inner lining (3) close to the screw head (1) is provided with a through fixing groove (31) so as to form a buckle (32).
  4. 4. Tyre valve cap according to claim 1, wherein guide angles (3201) are provided on both sides of the free end of the clasp (32), the guide angles (3201) being used to guide the movement of the bolt (5) such that the bolt (5) enters the fixing groove (31).
  5. 5. Tyre tap cap according to claim 1, characterised in that the pins (5) are protrusions on both sides of the tap head (1), the height of the protrusions being greater than the height of the flange (11).
  6. 6. Tyre valve cap according to claim 1, wherein said screw head (1) is provided with a pin hole (12) corresponding to the pin (5), said pin (5) being embedded inside the pin hole (12).
  7. 7. Tyre tap cap according to claim 6, characterised in that the outer circumference of the plug pin (5) is provided with a frosting (51), the frosting (51) being used to increase the friction between the plug pin (5) and the screw head (1).
  8. 8. Tyre valve cap according to claim 1, wherein the end of the screw head (1) adjacent to the cap body is provided with a spring groove (14), the spring groove (14) being adapted to limit the position of the compression spring (4).
  9. 9. Tyre valve cap according to claim 1, characterized in that the end of the screw head (1) remote from the cap body is provided with a mounting groove (13), the inside of the mounting groove (13) is provided with a sealing ring (6), and the sealing ring (6) is used for sealing the connection gap between the cap body and the screw head (1).
  10. 10. Tyre valve cap according to claim 1, wherein the end of the screw head (1) remote from the cap body is provided with a limit projection for limiting the axial movement path of the cap body along the screw head (1).

Description

Tyre air tap cap Technical Field The application belongs to the technical field of air tap caps, and relates to a tire air tap cap. Background The air tap cap is mainly used for preventing dust and protecting a valve core, but is usually designed by adopting small-size threads or a press-in type, and has the following pain points that the conventional air tap cap is small in diameter, but can be disassembled after rotating for a plurality of circles, so that the problem that children can mistakenly disassemble or intentionally lose the air tap cap after disassembling the air tap cap is solved. Therefore, how to provide a tire valve cap to prevent the child from being disassembled by mistake and not depending on other tools is a technical problem to be solved. Disclosure of utility model In order to overcome the problems in the related art, the application aims to provide a tire air valve cap which can prevent a child from being detached by mistake. The application is realized by the following technical scheme. The technical scheme is that the tire air valve cap comprises a cap body and a screw tooth head which are axially clamped, wherein the cap body is provided with a cavity, a fixing groove is formed in the cavity, the cap body is provided with a buckle, and a buckling position is formed between the buckle and the buckling surface of the screw tooth head; The periphery of the screw tooth head is provided with a flange, and the surface of the flange, which is abutted against the buckling position, is a buckling position plane; A compression spring is arranged between the cap body and the screw tooth head, and the screw tooth head is pushed to the buckling position by the compression spring through elasticity, so that the buckling position plane is stopped against the buckling position, and bidirectional fixation is realized; The screw tooth head is also provided with a bolt, and when the cap body moves along the screw tooth head axially under the action of external force and overcoming the elastic force, the bolt slides in the fixing groove and forms circumferential constraint. According to the technical scheme, the cap body and the screw thread head are arranged in a clamping manner, by means of the compression spring, the screw thread head and the cap body are positioned at positions which are mutually abutted in the axial direction in a normal state, at the moment, the bolt cannot be matched with the fixing groove to form circumferential constraint between the cap body and the screw thread head, when the cap body is rotated, the cap body rotates relative to the screw thread head, and the screw thread head is prevented from being detached by mistake. The utility model is further characterized in that a plurality of groups of symmetrical fixing grooves are formed in the cavity, buckles are formed between the adjacent fixing grooves, and the buckles and the clamping surfaces of the screw heads jointly define buckling positions. The utility model is further arranged that the cap body comprises an outer cap and a lining, and the lining is embedded in the outer cap; one end of the inner lining, which is close to the screw head, is provided with a through fixing groove so as to form a buckle. The utility model is further arranged that guide angles are arranged on two sides of the suspension end of the buckle, and the guide angles are used for guiding the bolt to move so that the bolt enters the fixing groove. The utility model is further arranged that the bolt is a protrusion on two sides of the screw head, and the height of the protrusion is larger than that of the flange. The utility model is further characterized in that the screw tooth head is provided with a bolt hole corresponding to the bolt, and the bolt is embedded in the bolt hole. The utility model is further characterized in that the periphery of the bolt is provided with a frosting surface, and the frosting surface is used for increasing the friction force between the bolt and the screw tooth head. The utility model further provides that one end of the screw thread head, which is close to the cap body, is provided with a spring groove, and the spring groove is used for limiting the position of the compression spring. The utility model is further characterized in that one end of the screw thread head, which is far away from the cap body, is provided with a mounting groove, a sealing ring is arranged in the mounting groove, and the sealing ring is used for sealing a connecting gap between the cap body and the screw thread head. The utility model is further arranged that one end of the screw head, which is far away from the cap body, is provided with a limiting protrusion, and the limiting protrusion is used for limiting the axial moving path of the cap body along the screw head. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the