CN209197981U - A kind of pressure gauge with pressure relief device - Google Patents
A kind of pressure gauge with pressure relief device Download PDFInfo
- Publication number
- CN209197981U CN209197981U CN201920017283.9U CN201920017283U CN209197981U CN 209197981 U CN209197981 U CN 209197981U CN 201920017283 U CN201920017283 U CN 201920017283U CN 209197981 U CN209197981 U CN 209197981U
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- pressure
- junction block
- relief device
- watchcase
- pressure relief
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Abstract
The utility model discloses a kind of pressure gauges with pressure relief device, including gauge outfit, the gauge outfit includes watchcase, glass surface, pointer, scale, the watchcase is the cylindrical shell-like structure of front end opening, the glass surface is set to the watchcase front end face, and the pointer, scale are placed in the watchcase inner cavity;Component is measured, the measurement component includes measurement junction block, bourdon tube, and described bourdon tube one end and measurement junction block connect, and the other end is sequentially connected by machine core and the pointer;Pressure relief device, the pressure relief device include the guide post, gasket and the relief hole being provided on measurement junction block being placed in the measurement junction block, are arranged with spring on the guide post.The maximum pressure of bearing of pressable power table carries out security settings, when environmental pressure to be measured bears pressure more than the maximum that pressure gauge is previously set, will do it releasing pressure automatically, ensure using safe, it avoids that pressure gauge Decrepitation Phenomena occurs, safety is good, it can be ensured that the safety of user.
Description
Technical field
The present invention relates to pressure gauge apparatus field, in particular to a kind of pressure gauge with pressure relief device.
Background technique
Pressure gauge refers to the instrument for measuring and indicating using elastic element as sensing element higher than environmental pressure, using extremely
Commonly, it almost spreads all industrial flow and scientific research field.In heat distribution pipe network, oil gas transmission, water and air supply system, vehicle
The fields such as maintenance factory shop are seen everywhere.Especially in industrial stokehold and technology measurement process, due to mechanical compression
The elastic sensing element of table has very high mechanical strength and the characteristics such as convenient for production so that mechanical compression table obtain it is more next
More it is widely applied.
Pressure gauge is made of pilot element, gear drive element, registration device and shell, in use, pressure gauge
Can because its bear pressure beyond nominal parameter and explode, the impact force for generation of exploding will lead to part four dissipate and table glass
The fragmentation of glass, to cause safety accident.
Summary of the invention
Regarding the issue above, the present invention provides a kind of pressure gauge with pressure relief device, it can be when pressure be excessive
Play the role of decompression protection.
To achieve the above object, the method that the present invention uses is: a kind of pressure gauge with pressure relief device, including gauge outfit, institute
Stating gauge outfit includes watchcase, glass surface, pointer, scale, and the watchcase is the cylindrical shell-like structure of front end opening, the glass surface
It is set to the watchcase front end face, the pointer, scale are placed in the watchcase inner cavity;Measure component, the measurement component packet
Measurement junction block, bourdon tube are included, described bourdon tube one end and measurement junction block connect, and the other end passes through machine core and the finger
Needle transmission connection;Pressure relief device, the pressure relief device include the guide post being placed in the measurement junction block, gasket and are provided with
The relief hole on junction block is measured, is arranged with spring on the guide post.
As an improvement of the present invention, it is additionally provided with protective cover on the measurement junction block, the protective cover connects with measurement
Head tube is integrally formed.
As an improvement of the present invention, the protective cover is bonded at arc-shaped and with the watchcase outer rim.
As an improvement of the present invention, the measurement connector inside pipe wall offers connection screw thread close to lower end surface part.
As an improvement of the present invention, the connection screw thread is trapezoidal thread.
The utility model has the advantages that
1, the maximum pressure of bearing of a kind of pressure gauge with pressure relief device of the present invention, pressable power table carries out safety
Setting will do it releasing pressure automatically, it is ensured that use when environmental pressure to be measured is more than the maximum receiving pressure that pressure gauge is previously set
Safety avoids that pressure gauge Decrepitation Phenomena occurs, and safety is good, it can be ensured that the safety of user;
2, protective cover is fitted on watchcase, in this way when measuring junction block by lateral shearing force, protective cover and watchcase
Between reaction force can also be provided, avoid measurement junction block be broken due to by radial shear power.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Each component in figure are as follows:
1- gauge outfit, 2- watchcase, 3- glass surface, 4- pointer, 5- scale, 6- measure junction block, 7- bourdon tube, 8- machine core, 9-
Guide post, 10- gasket, 11- relief hole, 12- spring, 13- protective cover, 14- connection screw thread.
Specific embodiment
Below with reference to embodiment and referring to attached drawing, the invention will be further described, it should be understood that following specific embodiments are only
For illustrating the present invention rather than limiting the scope of the invention.It should be noted that word " preceding " used in the following description,
" rear ", "left", "right", "up" and "down" refer to that the direction in width figure, word "inner" and "outside" refer respectively to direction or remote
Direction from geometric center of specific component.
As described in Figure, the present invention provides a kind of pressure gauge with pressure relief device, including gauge outfit 1, and the gauge outfit includes watchcase
2, glass surface 3, pointer 4, scale 5, the watchcase 2 are the cylindrical shell-like structure of front end opening, and the glass surface 3 is set to institute
2 front end face of watchcase is stated, the pointer 4, scale 5 are placed in 2 inner cavity of watchcase;Component is measured, the measurement component includes surveying
Measure junction block 6, bourdon tube 7, described 7 one end of bourdon tube and measurement junction block 6 connect, the other end by machine core 8 with it is described
Pointer 4 is sequentially connected;Pressure relief device, the pressure relief device include the guide post 9 being placed in the measurement junction block 6, gasket 10
And it is provided with the relief hole 11 on measurement junction block 6, spring 12 is arranged on the guide post 9.
As another embodiment of the invention, protective cover 13, the protective cover 13 are additionally provided on the measurement junction block 6
It is integrally formed with measurement junction block 6.
As another embodiment of the invention, the protective cover 13 is bonded at arc-shaped and with 2 outer rim of watchcase.
As another embodiment of the invention, 6 inner wall of measurement junction block offers connection close to lower end surface part
Screw thread 14.
As another embodiment of the invention, the connection screw thread 14 is trapezoidal thread.
The working principle of the invention: this pressure gauge when in use, when measurement environment pressure be more than pressure gauge maximum receiving
When pressure, gasket moves up in the case where the air pressure of environment to be measured pushes and is more than relief hole, and pressure will be from relief hole at this time
Place releases, and keeps away pressure gauge explosion, and gasket resets after pressure reduces.
The maximum pressure of bearing of a kind of pressure gauge with pressure relief device provided by the invention, pressable power table carries out safe set
It is fixed, when environmental pressure to be measured is more than the maximum receiving pressure that pressure gauge is previously set, it will do it releasing pressure automatically, it is ensured that use peace
Entirely, it avoids that pressure gauge Decrepitation Phenomena occurs, safety is good, it can be ensured that the safety of user.
The above described is only a preferred embodiment of the present invention, being not the limit for making any other form to the present invention
System, and made any modification or equivalent variations according to the technical essence of the invention, still fall within present invention model claimed
It encloses.
Claims (5)
1. a kind of pressure gauge with pressure relief device, it is characterised in that: including
Gauge outfit (1), the gauge outfit include watchcase (2), glass surface (3), pointer (4), scale (5), and the watchcase (2) is spacious for front end
The cylindrical shell-like structure of mouth, the glass surface (3) are set to the watchcase (2) front end face, and the pointer (4), scale (5) are set
In the watchcase (2) inner cavity;
Component is measured, the measurement component includes measurement junction block (6), bourdon tube (7), described bourdon tube (7) one end and measurement
Junction block (6) connects, and the other end is sequentially connected by machine core (8) and the pointer (4);
Pressure relief device, the pressure relief device include the guide post (9) being placed in measurement junction block (6), gasket (10) and open
It is located at the relief hole (11) measured on junction block (6), is arranged with spring (12) on the guide post (9).
2. a kind of pressure gauge with pressure relief device according to claim 1, it is characterised in that: the measurement junction block (6)
On be additionally provided with protective cover (13), the protective cover (13) and measurement junction block (6) be integrally formed.
3. a kind of pressure gauge with pressure relief device according to claim 2, it is characterised in that: protective cover (13) Cheng Yuan
It arcuation and is bonded with the watchcase (2) outer rim.
4. a kind of pressure gauge with pressure relief device according to claim 1, it is characterised in that: the measurement junction block (6)
Inner wall offers connection screw thread (14) close to lower end surface part.
5. a kind of pressure gauge with pressure relief device according to claim 4, it is characterised in that: the connection screw thread (14) is
Trapezoidal thread.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201920017283.9U CN209197981U (en) | 2019-01-07 | 2019-01-07 | A kind of pressure gauge with pressure relief device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201920017283.9U CN209197981U (en) | 2019-01-07 | 2019-01-07 | A kind of pressure gauge with pressure relief device |
Publications (1)
Publication Number | Publication Date |
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CN209197981U true CN209197981U (en) | 2019-08-02 |
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CN201920017283.9U Active CN209197981U (en) | 2019-01-07 | 2019-01-07 | A kind of pressure gauge with pressure relief device |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109540377A (en) * | 2019-01-07 | 2019-03-29 | 安徽天康(集团)股份有限公司 | A kind of pressure gauge with pressure relief device |
-
2019
- 2019-01-07 CN CN201920017283.9U patent/CN209197981U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109540377A (en) * | 2019-01-07 | 2019-03-29 | 安徽天康(集团)股份有限公司 | A kind of pressure gauge with pressure relief device |
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