CN212365851U - Plunger type pressure switch - Google Patents
Plunger type pressure switch Download PDFInfo
- Publication number
- CN212365851U CN212365851U CN202021483672.XU CN202021483672U CN212365851U CN 212365851 U CN212365851 U CN 212365851U CN 202021483672 U CN202021483672 U CN 202021483672U CN 212365851 U CN212365851 U CN 212365851U
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- China
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- plunger
- pressure switch
- locking ring
- type pressure
- shell
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Abstract
A plunger type pressure switch. Mainly solved present locking ring and appeared rocking easily under the water hammer effect, influenced the problem of result of use. The method is characterized in that: the novel plunger pump is characterized in that a locking ring (4) is further arranged in the shell, a through hole (41) is formed in the locking ring, the plunger penetrates through the through hole and is connected with a movable contact plate (43), the movable contact plate and the static contact plate are correspondingly arranged, and the locking ring is in threaded connection with the inner wall of the shell. The utility model provides a plunger type pressure switch through helicitic texture installation locking ring, and the installation is firm, is favorable to the impact force of dispersion water hammer moreover.
Description
Technical Field
The utility model relates to a pressure switch field, concretely relates to plunger type pressure switch.
Background
Pressure switches are commonly used to monitor the pressure in oil or grease lubricated equipment, hydraulic, pneumatic and water circuits. The pressure switch has short reciprocating time, reduces the abrasion to the minimum, and greatly improves the reliability and the service life of the switch.
The locking ring of the existing pressure switch is easy to shake under the action of a water hammer, so that the use effect is influenced.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of background art, the utility model provides a plunger type pressure switch has mainly solved present locking ring and has appeared rocking easily under the water hammer effect, influences the problem of result of use.
The utility model adopts the technical proposal that:
the plunger type pressure switch comprises a shell, wherein a fixed contact, a pressure sensing channel and a plunger are arranged in the shell, the pressure sensing channel and the plunger are arranged oppositely, a locking ring is further arranged in the shell, a through hole is formed in the locking ring, the plunger penetrates through the through hole and is connected with a movable touch plate, the movable touch plate is arranged corresponding to the fixed contact, and the locking ring is in threaded connection with the inner wall of the shell.
The bottom of the locking ring is provided with a sealing gasket, the sealing gasket is in sealing fit with the circumferential inner wall of the shell, and the plunger penetrates through the sealing gasket.
The bottom of the sealing gasket is provided with a steve seal, the plunger penetrates through the steve seal, and the steve seal is in sealing fit with the circumferential inner wall of the shell.
And a return spring is also arranged in the shell and is pressed against the top of the plunger.
The shell is further provided with a pressure regulating screw connected with a thread, and one end of the reset spring is pressed at the bottom of the pressure regulating screw.
The plunger piston can be detachably connected with a thimble, the thimble is provided with a frustum, and the reset spring is sleeved outside the frustum.
The frustum is matched with the thimble in a clamping manner.
The shell comprises a base and an end cover which are connected through threads.
The base, the plunger, the locking ring and the gasket are all made of metal.
The utility model has the advantages that: the utility model provides a plunger type pressure switch through helicitic texture installation locking ring, and the installation is firm, is favorable to the impact force of dispersion water hammer moreover.
Drawings
Fig. 1 is a schematic cross-sectional view of an embodiment of the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings: as shown in the figure, the plunger type pressure switch comprises a shell 1, a fixed contact 5, a pressure sensing channel 2 and a plunger 3 are arranged in the shell, the pressure sensing channel and the plunger are arranged oppositely, a locking ring 4 is further arranged in the shell, a through hole 41 is formed in the locking ring, the plunger penetrates through the through hole and is connected with a movable contact plate 43, the movable contact plate and the fixed contact are correspondingly arranged, and the locking ring is in threaded connection with the inner wall of the shell. When pressure in the pressure sensing channel is enhanced, the plunger can be pushed, the plunger drives the movable contact piece to be contacted with the static contact piece, the locking ring is firmly connected and installed with the inner wall of the shell through threads, and the impact force of the water hammer is favorably dispersed.
In this embodiment, as shown, the bottom of the locking ring is provided with a gasket 44 which is in sealing engagement with the inner circumferential wall of the housing, the plunger passing through the gasket.
In this embodiment, as shown, the bottom of the gasket is provided with a steve seal 45 through which the plunger passes, the steve seal being in sealing engagement with the inner circumferential wall of the housing.
In this embodiment, as shown in the figure, a return spring 8 is further disposed in the housing, and the return spring is pressed against the top of the plunger. The reset function is realized.
In this embodiment, as shown in the figure, a pressure regulating screw 6 in threaded connection is further arranged on the housing, and one end of the return spring abuts against the bottom of the pressure regulating screw. The pressure of the return spring can be adjusted by adjusting the pressure adjusting screw.
In this embodiment, as shown in the figure, the plunger may further be detachably connected with a thimble 7, the thimble is provided with a frustum 71, and the return spring is sleeved outside the frustum. Preventing the spring from coming out.
In this embodiment, as shown in the figure, the frustum is in clamping fit with the thimble.
In this embodiment, the housing includes a base 101 and an end cap 102 that are threadably connected, as shown. The connection may be by means of a screw thread.
In this embodiment, the base, plunger, locking ring and gasket are all made of metal, as shown. The bearing capacity is stronger, and can be stainless steel and the like.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
The embodiments described with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. The examples should not be construed as limiting the present invention, but any modifications made based on the spirit of the present invention should be within the scope of the present invention.
Claims (9)
1. Plunger type pressure switch, including casing (1), be equipped with static contact (5), pressure sensing passageway (2) and plunger (3) in the casing, the pressure sensing passageway with the plunger sets up relatively, its characterized in that: the shell is further provided with a locking ring (4), a through hole (41) is formed in the locking ring, the plunger penetrates through the through hole and is connected with a movable contact plate (43), the movable contact plate and the static contact are correspondingly arranged, and the locking ring is in threaded connection with the inner wall of the shell.
2. The plunger-type pressure switch according to claim 1, characterized in that: and a sealing gasket (44) is arranged at the bottom of the locking ring, the sealing gasket is in sealing fit with the circumferential inner wall of the shell, and the plunger penetrates through the sealing gasket.
3. The plunger-type pressure switch according to claim 2, characterized in that: the bottom of the sealing gasket is provided with a steckel seal (45), the plunger penetrates through the steckel seal, and the steckel seal is in sealing fit with the circumferential inner wall of the shell.
4. The plunger-type pressure switch according to claim 1, characterized in that: still be equipped with reset spring (8) in the casing, reset spring supports and presses in the plunger top.
5. The plunger-type pressure switch according to claim 4, characterized in that: the shell is further provided with a pressure regulating screw (6) in threaded connection, and one end of the reset spring abuts against the bottom of the pressure regulating screw.
6. The plunger-type pressure switch according to claim 5, characterized in that: still can dismantle on the plunger and be connected with thimble (7), be equipped with frustum (71) on the thimble, reset spring cover is located outside the frustum.
7. The plunger-type pressure switch according to claim 6, characterized in that: the frustum is matched with the thimble in a clamping manner.
8. The plunger-type pressure switch according to claim 6, characterized in that: the housing comprises a base (101) and an end cap (102) which are in threaded connection.
9. The plunger-type pressure switch according to claim 8, characterized in that: the base, the plunger, the locking ring and the gasket are all made of metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021483672.XU CN212365851U (en) | 2020-07-24 | 2020-07-24 | Plunger type pressure switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021483672.XU CN212365851U (en) | 2020-07-24 | 2020-07-24 | Plunger type pressure switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212365851U true CN212365851U (en) | 2021-01-15 |
Family
ID=74131532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021483672.XU Active CN212365851U (en) | 2020-07-24 | 2020-07-24 | Plunger type pressure switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212365851U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112786353A (en) * | 2021-01-20 | 2021-05-11 | 温岭市飞驰电器科技有限公司 | Plunger type pressure switch |
| CN116164142A (en) * | 2022-12-01 | 2023-05-26 | 浙江力夫自控技术股份有限公司 | Pressure-resistant pressure switch |
-
2020
- 2020-07-24 CN CN202021483672.XU patent/CN212365851U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112786353A (en) * | 2021-01-20 | 2021-05-11 | 温岭市飞驰电器科技有限公司 | Plunger type pressure switch |
| CN116164142A (en) * | 2022-12-01 | 2023-05-26 | 浙江力夫自控技术股份有限公司 | Pressure-resistant pressure switch |
| CN116164142B (en) * | 2022-12-01 | 2023-11-14 | 浙江力夫自控技术股份有限公司 | Pressure-resistant pressure switch |
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| GR01 | Patent grant |