CN219452985U - High-voltage sealing switch - Google Patents

Abstract

The utility model discloses a high-voltage sealed switch, which comprises a gas flow passage, a switch plug, a balance spring, a pushing device and a shell, wherein the pushing device consists of a pushing nut, a rotating rod, a rotating handle, a handle shell and a sealing element b, the handle shell is coupled with the shell, the pushing nut is abutted with one end of the switch plug, the switch plug penetrates through the balance spring and is coupled with the gas flow passage, and the coupling part is provided with the sealing element a. The utility model solves the technical problems of low use pressure, air leakage, serious abrasion of a connecting piece and incapability of adjusting the pressure of an air outlet of the high-pressure sealing switch in the prior art by utilizing the internal gas pressure to generate the pushing force to offset the force required by rotating and moving the plug.

Description

High-voltage sealing switch

Technical Field

The utility model relates to the field of high-pressure sealing, in particular to a high-pressure sealing switch.

Background

In a gas pipeline control system, the traditional high-pressure sealing switch controls gas through the control force of a machine component, when the pressure of the gas in a pipe is overlarge, the force required in the valve switching process is increased, so that the abrasion to the switch is increased, and the service life of the high-pressure sealing switch is influenced; in addition, the traditional high-pressure sealing switch is low in use pressure, has the problem of air leakage under the action of sealing high pressure, and cannot adjust the pressure of an air outlet according to the requirement. Therefore, it is necessary to design a high-pressure sealing switch which can solve the problems of low use pressure, air leakage, serious abrasion of a connecting piece, incapability of adjusting the pressure of an air outlet and the like of the high-pressure sealing switch in the prior art.

Disclosure of Invention

The utility model aims to provide a high-pressure sealing switch, which solves the technical problems that the high-pressure sealing switch in the prior art has low use pressure, leaks air, is seriously worn by a connecting piece and cannot adjust the pressure of an air outlet.

In order to achieve the above purpose, the utility model provides a high-voltage sealed switch, which comprises a gas flow passage, a switch plug, a balance spring, a pushing device and a shell, wherein the pushing device consists of a pushing nut, a rotating rod, a rotating handle, a handle shell and a sealing piece b, the handle shell is coupled with the shell, the pushing nut is abutted with one end of the switch plug, the switch plug penetrates through the balance spring and is coupled with the gas flow passage, and the coupling part is provided with the sealing piece a.

Further, the gas flow passage is arranged on the shell, and a high-pressure air hole and an air outlet hole are arranged at the gas flow passage.

Further, the connection part between the rotating rod and the pushing nut is in threaded connection, and a joint position is formed between the pushing nut and the switch plug.

Further, an O-shaped ring is arranged at the contact position of the switch plug and the handle shell, a high-pressure gas channel is arranged in the switch plug, and the high-pressure gas channel is led to the joint position.

Further, the rotary handle is in threaded connection with the rotary rod, and a sealing element b is arranged at the contact position of the handle shell and the rotary rod.

Further, the balance spring both ends respectively with shell and switch end cap butt.

The utility model has the following advantages:

(1) The high-pressure sealed switch provided by the utility model has high use pressure, and can be used for air and oxygen.

(2) The high-pressure sealing switch solves the problem of air leakage of the high-pressure switch, and the balance spring counteracts the high-pressure sealing force to convert the sealing high pressure into low pressure, so that the high requirement on a high-pressure sealing element is reduced, the problem of abrasion of a connecting element is solved, and after the high-pressure gas is opened, the pressure is weakened through the balance spring, so that the stress of the switch is reduced, and the service life is longer.

(3) The high-pressure sealing switch provided by the utility model can adjust the outlet pressure according to the requirement, has a large pressure adjusting range, meets the requirements of various scenes, can reduce the pressure fluctuation range, and is suitable for scenes with high pressure fluctuation requirements.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model;

in the figure: 1-air outlet hole, 2-sealing element a, 3-switch plug, 4-O-shaped ring, 5-joint position, 6-high pressure air hole, 7-shell, 8-balance spring, 9-high pressure air channel, 10-pushing nut, 11-pushing device, 12-handle shell, 13-rotary rod, 14-sealing element b and 15-rotary handle.

Detailed Description

For a better understanding of the objects, structure and function of the present utility model, a high voltage sealed switch of the present utility model will be described in further detail with reference to the accompanying drawings and examples. The specific embodiments described herein are to be considered in all respects as illustrative and not restrictive, and the described embodiments are intended to be illustrative only of some, but not all embodiments of the utility model.

It should be noted that, the orientation or positional relationship indicated in the description of the present utility model is based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

As shown in fig. 1, in the present embodiment, a high-pressure sealing switch comprises a gas flow channel, a switch plug 3, a balance spring 8, a pushing device 11 and a housing 7, wherein the pushing device 11 is composed of a pushing nut 10, a rotating rod 13, a rotating handle 15, a handle housing 12 and a sealing member b14, the gas flow channel is arranged on the housing 7, a high-pressure gas hole 6 and a gas outlet hole 1 are arranged at the gas flow channel, the handle housing 12 is coupled with the housing 7, the pushing nut 10 is abutted with one end of the switch plug 3, the switch plug 3 penetrates through the balance spring 8 and is coupled with the gas flow channel, and a sealing member a2 is arranged at the coupling position.

The connection part between the rotary rod 13 and the pushing nut 14 adopts threaded connection, and a joint position 5 is formed between the pushing nut 10 and the switch plug 3. The switch plug 3 is internally provided with a high-pressure gas channel 9, the high-pressure gas channel 9 is led to the joint position 5, aerodynamic force can be generated when the high-pressure gas flows into the joint position 5 along the high-pressure gas channel 9, the aerodynamic force can push the switch to close the valve, and people can not expend effort when using the rotary handle 15. An O-shaped ring 4 is arranged at the contact position of the switch plug and the handle shell, so that the driving force generated by aerodynamic force is prevented from being invalid due to gas leakage. The rotary handle 15 is screwed to the rotary rod 13, and a sealing member b14 is provided at a contact portion of the handle housing 12 with the rotary rod 13 in order to prevent leakage of gas from the rotary rod 13. Two ends of the balance spring 8 are respectively abutted with the shell 7 and the switch plug 3. When the rotary rod 13 is driven to rotate by the rotary handle 15, the push nut 10 can be moved up and down, and the switch plug 3 abutted against the push nut 10 can be moved up and down along with the push nut 10 under the action of the balance spring 8 and the push nut 10, so that the high-pressure gas can be opened and closed. In the process of controlling the high-pressure gas switch, the aerodynamic force generated by the high-pressure gas counteracts a part of the force required for moving the switch plug 3.

In the utility model, under the condition of realizing control of high-pressure gas, the high-pressure sealing switch increases the force required by rotating and moving the plug by utilizing the driving force generated by the internal gas pressure, thus not only realizing labor-saving operation and reducing abrasion, but also reducing the output pressure by the internal pressure, being more beneficial to stabilizing the pressure reduction when the gas is utilized in the later period, reducing the abrasion to the device and prolonging the service life.

It will be understood that the utility model has been described with respect to certain embodiments and that various changes and equivalents may be made to those features and embodiments without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims (6)

1. The utility model provides a high-pressure sealing switch, includes, gas flow channel, switch end cap (3), balanced spring (8), thrust unit (11) and shell (7), thrust unit (11) comprise push nut (10), rotary rod (13), rotatory handle (15), handle shell (12) and sealing member b (14), its characterized in that, handle shell (12) and shell (7) coupling, push nut (10) and switch end cap (3) one end butt, switch end cap (3) run through balanced spring (8), with gas flow channel coupling, the coupling department is provided with sealing member a (2).

2. A high-pressure sealed switch according to claim 1, characterized in that the gas flow channel is provided in the housing (7), and that the gas flow channel is provided with high-pressure gas holes (6) and gas outlet holes (1).

3. A high-voltage sealed switch according to claim 1, characterized in that the connection between the rotary rod (13) and the push nut (10) is threaded, and the push nut (10) and the switch plug (3) form a joint position (5).

4. A high-pressure sealed switch according to claim 3, characterized in that an O-ring (4) is arranged at the contact of the switch plug and the handle housing, a high-pressure gas channel (9) is arranged in the switch plug (3), and the high-pressure gas channel (9) leads to the joint position (5).

5. A high-voltage sealed switch according to claim 3, characterized in that the rotary handle (15) is screwed to the rotary rod (13), and the handle housing (12) is provided with a seal b (14) in contact with the rotary rod (13).

6. A high-voltage sealed switch according to claim 1, characterized in that the balance spring (8) is in abutment with the housing (7) and the switch plug (3) at both ends, respectively.