CN217762176U - Screw-in single-channel high-voltage switch - Google Patents
Screw-in single-channel high-voltage switch Download PDFInfo
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- CN217762176U CN217762176U CN202222029693.XU CN202222029693U CN217762176U CN 217762176 U CN217762176 U CN 217762176U CN 202222029693 U CN202222029693 U CN 202222029693U CN 217762176 U CN217762176 U CN 217762176U
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- valve body
- screw
- subassembly
- upper cover
- positioning seat
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Abstract
The utility model discloses a screw-in single channel high voltage switch, it includes: the top surface of the valve body is fixedly provided with an injection connecting rod communicated with an inner cavity of the valve body, four positioning through holes are circumferentially arrayed on the inner wall of the bottom of the valve body, one end of a sealing washer is clamped at the top in the valve body in an adaptive manner, and the other end of the sealing washer is matched and pressed with a pressing ring; the positioning seat is arranged in the valve body, the positioning seat is matched and pressed with the pressure ring, a through hole is formed in the positioning seat, and an ejector rod is arranged in the through hole in a matched sliding mode; and the snap dome is arranged between the positioning seat and the compression ring. The utility model discloses in the device, valve body and upper cover subassembly adopt the screw-in assembly to utilize outside hydraulic size, carry out circuit closed control, easy dismounting, low in manufacturing cost.
Description
Technical Field
The utility model particularly relates to a high tension switchgear technical field specifically is a screw-in single channel high tension switchgear.
Background
The pressure switch is a device which adopts a pressure sensor and a transmitting circuit with high precision and high stability and realizes the detection, display, alarm and control signal output of medium pressure signals by a special CPU modular processing technology, can be widely used for the measurement control of gauge pressure and absolute pressure of various gases and liquids in the fields of petroleum, chemical industry, metallurgy, electric power, water supply, water purification treatment and the like, and is an ideal intelligent measurement and control instrument for industrial fields.
The existing pressure switch gland and sealing shell are generally sealed and assembled by adopting screw type fixing, thread type fixing, buckle type fixing and riveting type fixing, and the screw type fixing needs to be provided with a plurality of threaded holes on the gland and the sealing shell, so that the pressure switch is large in size, the gland fixing process is complicated, and the assembly efficiency is low; the thread type fixing ensures good sealing performance, has high process requirement, long thread rotation time, low assembly efficiency and high cost; the buckle formula is fixed to require highly to the gland material, and easy fracture when the assembly simultaneously can not be disassembled, once disassemble the accessory and mostly scrap, manufacturing cost is high, and the riveting formula is fixed to require highly to the gland material, and easy fracture when the assembly simultaneously also can not be disassembled, once disassemble the accessory and mostly scrap, manufacturing cost is high.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides a screw-in single channel high voltage switch is in order to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a screw-in single channel high voltage switch, comprising:
the top surface of the valve body is fixedly provided with an injection connecting rod communicated with an inner cavity of the valve body, four positioning through holes are circumferentially arrayed on the inner wall of the bottom of the valve body, one end of a sealing washer is clamped at the top in the valve body in an adaptive manner, and the other end of the sealing washer is matched and pressed with a pressing ring;
the positioning seat is arranged in the valve body, the positioning seat is matched and pressed with the pressure ring, a through hole is formed in the positioning seat, and an ejector rod is arranged in the through hole in a matched sliding mode;
the snap dome is arranged between the positioning seat and the compression ring, the inner end face and the outer end face of the snap dome are respectively contacted with the ejector rod and the sealing washer, and when the sealing washer is squeezed by fluid, the snap dome deforms and pushes the ejector rod;
and the upper cover assembly is matched and clamped with the valve body.
Further, as preferred, the upper cover assembly comprises an upper cover, a lead sheet A assembly and a lead sheet B assembly, four bosses are arranged on the outer side wall of the bottom of the upper cover in a circumferential array mode, so that the upper cover is screwed into the valve body in a matching mode and clamped and fixed with the valve body in a clamping mode, the lead sheet A assembly and the lead sheet B assembly are fixedly installed in the upper cover, a movable spring assembly is riveted to the top of the lead sheet A assembly, and the movable spring assembly is in contact with an electric contact of the lead sheet B assembly.
Further, as preferred, be provided with the ring channel on the outer wall at upper cover top, the adaptation is installed with O type sealing washer in the ring channel.
Further, preferably, the metal dome is made of a metal material.
Further, preferably, the side wall of the ejector rod is provided with an annular step.
The utility model adopts the above technique, compare with current technique and have following beneficial effect: in the device, an external water path is connected with the pressure switch through an injection connecting rod on the valve body, fluid pressure acts on the sealing gasket at first to generate deformation and push the metal dome to generate deformation, the deformation is smaller at the moment, the metal dome is not overturned, the circuit is still in a connected state, when the fluid pressure is further increased, the metal dome is overturned to generate larger deformation and push the ejector rod, the ejector rod pushes the movable reed component on the lead piece A component, the lead piece A component and the lead piece B component are in an off state at the moment, the circuit is cut off, and an electric appliance connected with the circuit stops working;
when the external fluid pressure is gradually reduced, the snap dome shrinks and deforms, the circuit is still in an off state due to smaller deformation, when the fluid pressure is further reduced, the snap dome turns over (returns to the original position), the elastic force of the movable reed component on the lead tab A component pushes back the ejector rod, so that the lead tab A component and the lead tab B component are in an on state, an electric appliance connected with the lead tab A component starts to work, and a working cycle is completed.
Drawings
Fig. 1 is a schematic structural diagram of a screw-in single-channel high-voltage switch;
fig. 2 is a structural sectional view of a screw-in single-channel high-voltage switch;
fig. 3 is an exploded view of a screw-in single-channel high-voltage switch.
In the figure: 1. a valve body; 2. a sealing gasket; 3. pressing a ring; 4. snap dome; 5. positioning seats; 6. a top rod; 7. a lead tab A assembly; 8. a lead tab B assembly; 9. an O-shaped sealing ring; 10. and (7) covering.
Detailed Description
With reference to the drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely below.
Example (b): referring to fig. 1-3, the present invention provides a technical solution: a screw-in single channel high voltage switch, comprising:
the top surface of the valve body 1 is fixedly provided with an injection connecting rod communicated with the inner cavity of the valve body 1, four positioning through holes are circumferentially arrayed on the inner wall of the bottom of the valve body 1, one end of a sealing washer 2 is clamped at the top of the inside of the valve body 1 in a matched manner, and the other end of the sealing washer 2 is matched and pressed with a pressing ring 3;
specifically, the upper part and the lower part of the sealing washer 2 are respectively provided with a raised rib for strengthening the sealing function;
the positioning seat 5 is arranged in the valve body 1, the positioning seat 5 is matched and pressed with the pressure ring 3, a through hole is formed in the positioning seat 5, an ejector rod 6 is arranged in the through hole in a matched sliding mode, and four positioning columns are arranged above the positioning seat 5 and used for positioning the assembling feeding belt;
specifically, after assembly, the press ring 3 presses the sealing washer 2 to be separated from the upper rotating pressure, and when the upper cover 10 rotates, the press ring 3 is kept not to rotate, so that the sealing washer 2 is ensured to be flat and not to be folded, and meanwhile, the upper part of the press ring 3 is provided with two arc surfaces, so that the friction resistance during rotation can be reduced;
the snap dome 4 is arranged between the positioning seat 5 and the pressing ring 3, the inner end face and the outer end face of the snap dome 4 are respectively contacted with the ejector rod 6 and the sealing washer 2, and when the sealing washer 2 is extruded by fluid, the snap dome 4 deforms and pushes the ejector rod 6;
and the upper cover assembly is matched and clamped with the valve body 1.
In this embodiment, the upper cover assembly includes upper cover 10, lead wire piece a subassembly 7 and lead wire piece B subassembly 8, and there are four bosss in the lateral wall circumference array of upper cover 10 bottom to upper cover 10 matches the screw in to valve body 1 in, and both block admittedly mutually, and fixed mounting has lead wire piece a subassembly 7 and lead wire piece B subassembly 8 in the upper cover 10, and the top riveting of lead wire piece a subassembly 7 has the movable spring piece subassembly, and the movable spring piece subassembly contacts with the electric contact of lead wire piece B subassembly 8.
In this embodiment, an annular groove is formed in the outer wall of the top of the upper cover 10, and an O-ring 9 is fittingly installed in the annular groove.
In this embodiment, the snap dome 4 is made of a metal material, and turns over under the action of pressure to perform the function of connecting and disconnecting the circuit.
In this embodiment, the side wall of the carrier rod 6 is provided with an annular step to limit the pushing length.
When the pressure switch is implemented specifically, an external water path is connected with the pressure switch through an injection connecting rod on a valve body 1, fluid pressure firstly acts on a sealing washer 2 to generate deformation and push a metal dome 4 to generate deformation, at the moment, the deformation is smaller, the metal dome 4 is not overturned, a circuit is still in a connected state, when the fluid pressure is further increased, the metal dome 4 is overturned, generates larger deformation and pushes a push rod 6, the push rod 6 pushes a movable reed component on a lead piece A component 7, at the moment, the lead piece A component and a lead piece B component are in a disconnected state, the circuit is cut off, and an electric appliance connected with the circuit stops working;
when the external fluid pressure is gradually reduced, the snap dome 4 shrinks and deforms, the circuit is still in an off state due to smaller deformation, when the fluid pressure is further reduced, the snap dome 4 turns over (returns to the original position), the elastic force of the movable reed component on the lead tab A component 7 pushes back the ejector rod 6, so that the lead tab A component and the lead tab B component are in an on state, an electric appliance connected with the lead tab A component starts to work, and a working cycle is completed.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (5)
1. A screw-in single-channel high-voltage switch, comprising:
the injection valve comprises a valve body (1), wherein an injection connecting rod communicated with an inner cavity of the valve body (1) is fixedly arranged on the top surface of the valve body (1), four positioning through holes are circumferentially arrayed on the inner wall of the bottom of the valve body (1), one end of a sealing washer (2) is clamped at the inner top of the valve body (1) in an adaptive manner, and the other end of the sealing washer (2) is matched and pressed with a pressing ring (3);
the positioning seat (5) is arranged in the valve body (1), the positioning seat (5) is matched and pressed with the compression ring (3), a through hole is formed in the positioning seat (5), and an ejector rod (6) is arranged in the through hole in a matched sliding mode;
the metal dome sheet (4) is arranged between the positioning seat (5) and the pressing ring (3), the inner end face and the outer end face of the metal dome sheet (4) are respectively contacted with the ejector rod (6) and the sealing washer (2), and when the sealing washer (2) is extruded by fluid, the metal dome sheet (4) deforms and pushes the ejector rod (6);
and the upper cover assembly is matched and clamped with the valve body (1).
2. The screw-in single-channel high-voltage switch of claim 1, wherein: the upper cover subassembly includes upper cover (10), lead wire piece A subassembly (7) and lead wire piece B subassembly (8), the lateral wall circumference array of upper cover (10) bottom has four bosss, so that upper cover (10) match the screw in extremely in valve body (1), and both block admittedly mutually, upper cover (10) internal fixation is equipped with lead wire piece A subassembly (7) and lead wire piece B subassembly (8), the top riveting of lead wire piece A subassembly (7) has the movable reed subassembly, the movable reed subassembly contacts with the electric contact of lead wire piece B subassembly (8).
3. A screw-in single channel high voltage switch according to claim 2, wherein: an annular groove is formed in the outer wall of the top of the upper cover (10), and an O-shaped sealing ring (9) is installed in the annular groove in an adaptive mode.
4. A screw-in single channel high voltage switch according to claim 3, wherein: the metal dome (4) is made of metal materials.
5. The screw-in single-channel high-voltage switch according to claim 4, wherein: and the side wall of the ejector rod (6) is provided with an annular step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222029693.XU CN217762176U (en) | 2022-08-03 | 2022-08-03 | Screw-in single-channel high-voltage switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222029693.XU CN217762176U (en) | 2022-08-03 | 2022-08-03 | Screw-in single-channel high-voltage switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217762176U true CN217762176U (en) | 2022-11-08 |
Family
ID=83879017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222029693.XU Active CN217762176U (en) | 2022-08-03 | 2022-08-03 | Screw-in single-channel high-voltage switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217762176U (en) |
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2022
- 2022-08-03 CN CN202222029693.XU patent/CN217762176U/en active Active
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