CN203743109U - Pressure gauge switch - Google Patents

Pressure gauge switch Download PDF

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Publication number
CN203743109U
CN203743109U CN201420086907.XU CN201420086907U CN203743109U CN 203743109 U CN203743109 U CN 203743109U CN 201420086907 U CN201420086907 U CN 201420086907U CN 203743109 U CN203743109 U CN 203743109U
Authority
CN
China
Prior art keywords
groove
spool
hydraulic fluid
fluid port
spring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420086907.XU
Other languages
Chinese (zh)
Inventor
刘靖
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shaanxi University of Science and Technology
Original Assignee
Shaanxi University of Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shaanxi University of Science and Technology filed Critical Shaanxi University of Science and Technology
Priority to CN201420086907.XU priority Critical patent/CN203743109U/en
Application granted granted Critical
Publication of CN203743109U publication Critical patent/CN203743109U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a pressure gauge switch which comprises a valve body, a valve element, an end cover and a spring. The end face of one end of the valve body is provided with a first groove, the valve element is inserted into the first groove, and the first groove is sealed through the end cover. One end of the valve element is provided with a first protrusion, the first protrusion penetrates through the end cover and extends out of the end cover, and the other end of the valve element is connected with one end of the spring. The other end of the spring is fixed to the bottom of the first groove, and the side face of the valve body is provided with a pressure oil opening, an oil tank oil opening and an oil outlet communicated with an oil inlet of a pressure gauge. The oil tank oil opening is communicated with an oil opening in the oil tank, and a second groove is formed in the side face of the valve element. According to the pressure gauge switch, the service life of the pressure gauge can be effectively prolonged.

Description

A kind of pressure meter switch
Technical field
The utility model belongs to mechanical manufacturing field, is specifically related to a kind of pressure meter switch.
Background technique
Pressure gauge is the common equipment of detection system internal pressure oil pressure size, in hydraulic equipment, existing pressure meter switch is generally all under normally open, because making long-term in running order pressure gauge, the vibration of hydraulic system produces malfunctioning phenomenon too early like this, even damage, therefore serious impact manometric working life.
Model utility content
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, and a kind of pressure meter switch is provided, and this switch can effectively extend manometric working life.
For achieving the above object, pressure meter switch described in the utility model comprises valve body, spool, end cap and spring, on the end face of valve body one end, offer the first groove, spool is inserted in described the first groove, the first groove seals by end cap, and one end of spool is provided with the first projection, and the first projection extends to outside end cap through end cap, the other end of spool is connected with one end of spring, and the other end of spring is fixed on the bottom of the first groove;
The oil outlet that the side opening of described valve body is provided with pressure hydraulic fluid port, fuel tank hydraulic fluid port and is connected with manometric oiler, fuel tank hydraulic fluid port is connected with the hydraulic fluid port on fuel tank, the side opening of spool is provided with the second groove, when spring is during in free state, fuel tank hydraulic fluid port is connected with the space that the first groove forms by the second groove with oil outlet, and pressure hydraulic fluid port is by the side-closed of spool; When spring is during in compressive state, pressure hydraulic fluid port is connected with the space that the first groove forms by the second groove with oil outlet, and fuel tank hydraulic fluid port is by the side-closed of spool.
Described the second groove is loop configuration.
The other end of described spool is provided with the second projection, and one end of spring is socketed in described the second projection.
The utlity model has following beneficial effect:
Pressure meter switch described in the utility model comprises valve body, spool, end cap and spring, the side opening of valve body is provided with pressure hydraulic fluid port, fuel tank hydraulic fluid port and the oil outlet being connected with manometric oiler, under normal circumstances, spring is under free state, fuel tank hydraulic fluid port is connected with the space that oil outlet forms by the second groove and the first groove, and pressure hydraulic fluid port is by the side-closed of spool, thereby make pressure gauge under closed condition, in the time needing the oil pressure of side pressure oil, press first projection of described spool one end, make spring under compressive state, pressure hydraulic fluid port is connected with the space that the first groove forms by the second groove with oil outlet, and fuel tank hydraulic fluid port is by the side-closed of spool, the pressure oil of system enters into pressure gauge through pressure hydraulic fluid port and oil outlet, thereby pressure gauge is normally worked, therefore pressure meter switch described in the utility model can make pressure gauge close under normal conditions, thereby can effectively extend manometric working life.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Wherein, 1 is that valve body, 2 is that spring, 3 is that spool, 4 is that end cap, 5 is that pressure hydraulic fluid port, 6 is that fuel tank hydraulic fluid port, 7 is oil outlet.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
With reference to figure 1, pressure meter switch described in the utility model comprises valve body 1, spool 3, end cap 4 and spring 2, on the end face of valve body 1 one end, offer the first groove, spool 3 is inserted in described the first groove, the first groove seals by end cap 4, and one end of spool 3 is provided with the first projection, and the first projection extends to outside end cap 4 through end cap 4, the other end of spool 3 is connected with one end of spring 2, and the other end of spring 2 is fixed on the bottom of the first groove;
The oil outlet 7 that the side opening of described valve body 1 is provided with pressure hydraulic fluid port 5, fuel tank hydraulic fluid port 6 and is connected with manometric oiler, fuel tank hydraulic fluid port 6 is connected with the hydraulic fluid port on fuel tank, the side opening of spool 3 is provided with the second groove, when spring 2 is during in free state, fuel tank hydraulic fluid port 6 is connected with the space that the first groove forms by the second groove with oil outlet 7, and pressure hydraulic fluid port 5 is by the side-closed of spool 3; When spring 2 is during in compressive state, pressure hydraulic fluid port 5 is connected with the space that the first groove forms by the second groove with oil outlet 7, and fuel tank hydraulic fluid port 6 is by the side-closed of spool 3, and the second groove is loop configuration.It should be noted that, the other end of described spool 3 is provided with the second projection, and one end of spring 2 is socketed in described the second projection.
Specific operation process of the present utility model is:
Under normal conditions, spring 2 is under free state, pressure gauge is connected with fuel tank, in the time that needs are measured oil pressure, only need press spool 3, make spring 2 under compressive state, be that pressure gauge is connected with the pressure oil of system, the oil pressure that can carry out by pressure gauge measuring system, after measurement, unclamps spool 3, spool 3 automatically resets under the effect of spring 2 elastic force, pressure gauge, makes like this pressure gauge under closed condition, thereby effectively improves manometric working life again from being newly connected with fuel tank.

Claims (3)

1. a pressure meter switch, it is characterized in that, comprise valve body (1), spool (3), end cap (4) and spring (2), on the end face of valve body (1) one end, offer the first groove, spool (3) is inserted in described the first groove, the first groove is by end cap (4) sealing, one end of spool (3) is provided with the first projection, the first projection extends to outside end cap (4) through end cap (4), the other end of spool (3) is connected with one end of spring (2), and the other end of spring (2) is fixed on the bottom of the first groove;
The oil outlet (7) that the side opening of described valve body (1) is provided with pressure hydraulic fluid port (5), fuel tank hydraulic fluid port (6) and is connected with manometric oiler, fuel tank hydraulic fluid port (6) is connected with the hydraulic fluid port on fuel tank, the side opening of spool (3) is provided with the second groove, when spring (2) is during in free state, fuel tank hydraulic fluid port (6) is connected with the space that the first groove forms by the second groove with oil outlet (7), and pressure hydraulic fluid port (5) is by the side-closed of spool (3); When spring (2) is during in compressive state, pressure hydraulic fluid port (5) is connected with the space that the first groove forms by the second groove with oil outlet (7), and fuel tank hydraulic fluid port (6) is by the side-closed of spool (3).
2. pressure meter switch according to claim 1, is characterized in that, described the second groove is loop configuration.
3. pressure meter switch according to claim 1, is characterized in that, the other end of described spool (3) is provided with the second projection, and one end of spring (2) is socketed in described the second projection.
CN201420086907.XU 2014-02-27 2014-02-27 Pressure gauge switch Expired - Fee Related CN203743109U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420086907.XU CN203743109U (en) 2014-02-27 2014-02-27 Pressure gauge switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420086907.XU CN203743109U (en) 2014-02-27 2014-02-27 Pressure gauge switch

Publications (1)

Publication Number Publication Date
CN203743109U true CN203743109U (en) 2014-07-30

Family

ID=51342914

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420086907.XU Expired - Fee Related CN203743109U (en) 2014-02-27 2014-02-27 Pressure gauge switch

Country Status (1)

Country Link
CN (1) CN203743109U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105697456A (en) * 2014-11-27 2016-06-22 无锡市海骏液压机电设备有限公司 Adjustment type hydraulic cylinder pressure measurement device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105697456A (en) * 2014-11-27 2016-06-22 无锡市海骏液压机电设备有限公司 Adjustment type hydraulic cylinder pressure measurement device

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140730

Termination date: 20150227