CN213124218U

CN213124218U - Commercial car high pressure seal switch

Info

Publication number: CN213124218U
Application number: CN202021237156.9U
Authority: CN
Inventors: 王斌; 何稳刚
Original assignee: Shaanxi Fenghang Rubber Sealing Parts Co ltd
Current assignee: Shaanxi Fenghang Rubber Sealing Parts Co ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-05-04
Anticipated expiration: 2030-06-29

Abstract

The utility model discloses a commercial car high pressure seal switch, which comprises a shell, the casing bottom embedding is installed with the button post, the button post center inboard embedding is installed with lower reset spring, and lower reset spring top and movable block contact each other, the button post is internally provided with the cavity, the movable block top contacts with the sealing rubber pad and links to each other, the sealing rubber pad is concave, the concave top is blocked with the switch push rod and links to each other, the concave side end of the sealing rubber pad is of the folding type, the utility model discloses the structure is scientific and reasonable, convenient to use is safe, when reciprocating through the folding type sealing rubber pad, can be convenient for keep its life to increase, the sealing rubber pad is under the promotion of atmospheric pressure, and the folding position naturally extends; the sizing material has no limit extension, the self characteristics of the sizing material can not change at the fatigue limit, the sizing material can be used for a long time, the pressure of air can not be leaked, the accuracy is improved, and the air tightness and pressure resistance of the sizing material are improved.

Description

Commercial car high pressure seal switch

Technical Field

The utility model relates to a sealing switch technical field specifically is a commercial car high-pressure seal switch.

Background

The term switch is to be interpreted as open and closed, which also refers to an electronic component that can open a circuit, interrupt a current, or allow it to flow to other circuits, the most common being a human-operated electromechanical device in which there are one or more electrical contacts, the "closed" of which indicates that the electrical contact is conducting, allowing a current to flow; an "open" of the switch indicates that the electrical contacts are not conducting, forming an open circuit, and current is not allowed to flow;

however, in use, the high-pressure sealing switch in the market drives the switch component to move up and down due to external pressure, but the high-pressure sealing switch is short in service life, cannot resist the instantaneous pressure of high-pressure compressed air and cannot be switched on and off quickly due to the fact that the switch is under the high-pressure compressed air.

SUMMERY OF THE UTILITY MODEL

The utility model provides a commercial car high-pressure seal switch can effectively solve and propose the high-pressure seal switch in use on the existing market among the above-mentioned background art because ambient pressure, drives its switch module and carries out the removal from top to bottom, but its life-span is short, and the switch is under high-pressure compressed air, and the problem of quick break-make can't be realized to the pressure in the twinkling of an eye that does not endure high-pressure compressed air.

In order to achieve the above object, the utility model provides a following technical scheme: a high-pressure sealing switch for a commercial vehicle comprises a shell, wherein a button column is embedded and mounted at the bottom end of the shell, a lower reset spring is embedded and mounted on the inner side of the center of the button column, the upper part of the lower reset spring is in contact with a moving block, and a cavity is formed in the button column;

the top end of the moving block is in contact connection with a sealing rubber pad, the sealing rubber pad is concave, the concave top end of the sealing rubber pad is clamped and connected with the switch push rod, and the concave side end of the sealing rubber pad is of a folding type;

the switch comprises a switch push rod, a limit lifting seat, a movable contact terminal lug, a push-pull reset spring, a terminal post seat and a ferrule, wherein two ends of the switch push rod are connected with the embedded linkage of the limit lifting seat, the middle part of the other end of the switch push rod is sleeved with a movable contact terminal lug, the center of the switch push rod is embedded and installed with the push-pull reset spring, the top end of the push-pull reset spring is mutually supported with an inner hole of the terminal post seat, the junction of the terminal post seat and the ferrule is provided with the;

and a fixed contact lug is arranged above the movable contact lug on the lug seat, and the fixed contact lug is connected with the lug seat outside the shell.

Preferably, the top end of the button column is convex, and the inner diameter of the bottom end of the moving block is equal to the outer diameter of the top end of the button column.

Preferably, an air compression cavity is formed between the moving block and the sealing rubber pad, and a gap is reserved between the moving block and the shell.

Preferably, the number of the terminal post bases is two, and a groove is formed in the middle of each terminal post base.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has scientific and reasonable structure, safe and convenient use, can keep the service life of the sealing rubber pad to be prolonged when the sealing rubber pad moves up and down, and the folding part of the sealing rubber pad naturally extends under the push of air pressure; the sizing material has no limit extension, the self characteristics of the sizing material can not change at the fatigue limit, the sizing material can be used for a long time, the pressure of air can not be leaked, the accuracy is improved, and the air tightness and pressure resistance of the sizing material are improved.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the structure of the pressure trend of the present invention;

fig. 3 is a schematic diagram of a deformation structure of the sealing rubber pad of the present invention;

reference numbers in the figures: 1. a housing; 2. a button post; 3. a lower return spring; 4. a moving block; 5. A cavity; 6. sealing the rubber pad; 7. an air compression chamber; 8. a switch push rod; 9. a limiting lifting seat; 10. pushing and pulling a reset spring; 11. a movable contact lug plate; 12. a stationary contact lug; 13. The lug plate is sleeved with the spring; 14. a terminal post base; 15. a terminal post seat.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in fig. 1-3, the utility model provides a technical scheme, a commercial car high pressure seal switch, including casing 1, casing 1 bottom embedding is installed button post 2, button post 2 central inboard embedding is installed lower reset spring 3, and lower reset spring 3 top and movable block 4 contact each other, button post 2 top is convex, movable block 4 bottom internal diameter equals the external diameter at button post 2 top, thereby be convenient for the embedding connection, button post 2 inside is seted up cavity 5;

the top end of the moving block 4 is in contact connection with the sealing rubber pad 6, an air compression cavity 7 is formed between the moving block 4 and the sealing rubber pad 6, a gap is reserved between the moving block 4 and the shell 1, accordingly, air circulation and compression are facilitated, the sealing rubber pad 6 is concave, the concave top end is connected with the switch push rod 8 in a clamping mode, and the concave side end of the sealing rubber pad 6 is of a folding type;

two ends of a switch push rod 8 are connected with a limit lifting seat 9 in an embedded linkage mode, a movable contact terminal lug 11 is sleeved in the middle of the other end of the switch push rod 8, a push-pull reset spring 10 is embedded and installed in the center of the switch push rod 8, the top end of the push-pull reset spring 10 and an inner hole of a terminal post seat 15 are mutually supported, a ferrule is arranged at the connection position of the terminal post seat 15 and the ferrule, and a terminal lug sleeving spring 13 is sleeved on the outer side of the ferrule and elastically supported together with the switch push rod 8;

the terminal base 15 is provided with stationary contact lug 12 above the movable contact lug 11, the stationary contact lug 12 is connected with the terminal base 14 outside the casing 1, the number of the terminal bases 14 is two, and the middle of the terminal base 14 is provided with a groove, thereby being convenient for externally connecting control lines.

The wiring column seat 15 is embedded with a wiring column, the wiring column is riveted with a fixed contact wiring sheet 12, a switch push rod 8 is sleeved inside a lifting limit seat 9, a movable contact wiring sheet 11 is sleeved on the switch push rod 8, a push rod reset spring 10 and a wiring sheet reset spring 13 are arranged above the switch push rod 8 and the movable contact wiring sheet 11, and when the movable contact wiring sheet 11 is communicated with the fixed contact wiring sheet 12, the push rod reset spring 10 and the wiring sheet reset spring 13 are in a compression state.

The utility model discloses a theory of operation and use flow: in operation, the switch parts are arranged at the required position of the shell 1, the shell 1 is finally used for edge covering and closing, the terminal post seat 14 is connected with an external control line, when the button post 2 is pressed by a piston, the moving block 4 is driven to move upwards at the moment, and when the moving block 4 moves upwards, the terminal post seat and the switch push rod 8 form a linkage relation, at the moment, the service life of the terminal post can be conveniently prolonged when the terminal post is moved upwards and downwards through the folding type sealing rubber pad 6, and the folding part of the sealing rubber pad 6 naturally extends under the pushing of air pressure; the rubber material does not have limit extension, the self characteristic of the rubber material does not have fatigue limit change, the rubber material can be used for a long time, the pressure of air is kept not to leak, the accuracy is improved, the air tightness and pressure resistance of the rubber material are improved, the switch push rod 8 drives the movable contact lug 11 to be in contact with the fixed contact lug 12 to form a passage to complete the signal transmission of the switch, and finally, the reset is formed under the matching of the lower reset spring 3, the push-pull reset spring 10 and the lug sleeving spring 13.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a commercial car high pressure seal switch, includes casing (1), its characterized in that: a button column (2) is embedded in the bottom end of the shell (1), a lower return spring (3) is embedded in the inner side of the center of the button column (2), the upper part of the lower return spring (3) is in contact with a moving block (4), and a cavity (5) is formed in the button column (2);

the top end of the moving block (4) is in contact connection with a sealing rubber pad (6), the sealing rubber pad (6) is concave, the concave top end of the sealing rubber pad is clamped and connected with a switch push rod (8), and the concave side end of the sealing rubber pad (6) is of a folding type;

the switch comprises a switch push rod (8), a limit lifting seat (9), a movable contact lug (11) sleeved in the middle of the other end of the switch push rod (8), a push-pull reset spring (10) embedded in the center of the switch push rod (8), a second terminal post seat (15) and the top end of the push-pull reset spring (10) are mutually supported, a ferrule is arranged at the joint of the second terminal post seat (15) and the ferrule, and a lug sleeving spring (13) is sleeved on the outer side of the ferrule and elastically supports the second terminal post seat and the switch push rod (8);

and a fixed contact lug plate (12) is arranged above the movable contact lug plate (11) of the second terminal post seat (15), and the fixed contact lug plate (12) is connected with the first terminal post seat (14) on the outer side of the shell (1).

2. The high pressure sealing switch for commercial vehicle as claimed in claim 1, wherein the top end of the button post (2) is convex, and the inner diameter of the bottom end of the moving block (4) is equal to the outer diameter of the top end of the button post (2).

3. The high-pressure sealing switch for commercial vehicles as claimed in claim 1, characterized in that an air compression chamber (7) is formed between the moving block (4) and the sealing rubber pad (6), and a gap is left between the moving block (4) and the housing (1).

4. The commercial vehicle high-voltage sealing switch according to claim 1, wherein the number of the first terminal post bases (14) is two, and a groove is formed in the middle of each first terminal post base (14).