CN111122048A - Waterproof sealing structure for pressure gauge - Google Patents
Waterproof sealing structure for pressure gauge Download PDFInfo
- Publication number
- CN111122048A CN111122048A CN201911165823.9A CN201911165823A CN111122048A CN 111122048 A CN111122048 A CN 111122048A CN 201911165823 A CN201911165823 A CN 201911165823A CN 111122048 A CN111122048 A CN 111122048A
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- CN
- China
- Prior art keywords
- pressure gauge
- piston
- sealing structure
- pipe
- pressure
- 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.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/06—Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
- G01L19/0627—Protection against aggressive medium in general
- G01L19/0654—Protection against aggressive medium in general against moisture or humidity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
- G01L7/16—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of pistons
- G01L7/163—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of pistons construction or mounting of pistons
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
- G01L7/16—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of pistons
- G01L7/166—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of pistons with mechanical transmitting or indicating means
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention relates to the field of pressure gauges, and particularly discloses a waterproof sealing structure for a pressure gauge, which comprises the pressure gauge, wherein a vent pipe is arranged above the pressure gauge, a central shaft is arranged inside the pressure gauge, the upper end of the central shaft is connected with a pointer, a dial is arranged outside the pointer, a pressure gauge joint is arranged at the lower end of the pressure gauge, and a working water pipe is connected under the pressure gauge joint. Liquid can extrude under the condition of upward movement and promote the piston and move in the inside of piston tube, the push rod of piston one side passes through the change and is connected with the connecting rod, can drive the connecting rod when the push rod motion and rotate on the manometer for the pointer rotates on the center pin and obtains corresponding reading, the piston tube can guarantee inside leakproofness, the sealing plug is the elastic rubber material component, when the high instrument abnormal operation that leads to of temperature appearing, can utilize the pipeline that link up to insert in the sealing plug and the atmosphere communicates with each other and improves.
Description
Technical Field
The invention relates to the field of pressure gauges, in particular to a waterproof sealing structure for a pressure gauge.
Background
The pressure gauge is an instrument for measuring and indicating the pressure higher than the environmental pressure by taking an elastic element as a sensitive element, is very common in application, can be used in almost all fields of industrial processes and scientific researches, is visible everywhere in the fields of heat pipe networks, oil and gas transmission, water and gas supply systems, vehicle maintenance and repair shops and the like, and is particularly widely applied to the mechanical pressure gauge due to the characteristics of high mechanical strength, convenient production and the like of the elastic sensitive element of the mechanical pressure gauge in the industrial process control and technical measurement processes
However, since water is easily leaked from the joint of the bourdon tube during the use of the pressure gauge, the water leakage may be caused to affect the measurement accuracy of the pressure gauge. Accordingly, those skilled in the art have provided a waterproof sealing structure for a pressure gauge to solve the problems set forth in the background art as described above.
Disclosure of Invention
The invention aims to provide a waterproof sealing structure for a pressure gauge, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a waterproof sealing structure that can be used to manometer, includes the manometer, the breather pipe is installed to the top of manometer, and the internally mounted of manometer has the center pin, the upper end of center pin is connected with the pointer, the outside of pointer is provided with the calibrated scale, pressure meter connector is installed to the lower extreme of manometer, be connected with the work water pipe under the pressure meter connector, the ball valve is installed to one side of work water pipe, and the sealing ring is installed to the opposite side of work water pipe.
As a still further scheme of the invention: the rear end of center pin is provided with the balance spring, the core is installed to the lower extreme of balance spring, the connecting rod is installed in the outside of core, adjusting screw is installed with the junction of core to the connecting rod, and the upper end of connecting rod installs the piston pipe, the one end of piston pipe is connected with the pressure water pipe, installation branch is installed to the lower extreme of center pin.
As a still further scheme of the invention: the piston is installed in the piston tube, a push rod is installed on one side of the piston, a rotating ring is arranged at one end of the push rod, and a limit stop is installed on the inner side of the piston tube.
As a still further scheme of the invention: the inside mounting of breather pipe has the sealing plug, the front surface mounting of manometer has the instrument lid, one side of instrument lid is provided with the seal groove.
As a still further scheme of the invention: the sealing groove is fixedly connected with the instrument cover, the sealing plug is fixedly connected with the vent pipe, and the sealing plug is a rubber component.
As a still further scheme of the invention: the piston is connected with the piston tube in a sliding mode, the push rod is fixedly connected with the piston, and the rotating ring is connected with the push rod in a penetrating mode.
As a still further scheme of the invention: the balance spring is an elastic component, the connecting rod is rotatably connected with the pressure gauge through a rotating shaft, and the pressure water pipe is communicated with the piston pipe.
As a still further scheme of the invention: the central shaft is rotatably connected with the mounting support rod, and the adjusting screw is rotatably connected with the connecting rod.
As a still further scheme of the invention: the pressure gauge is connected with the working water pipe through a pipeline in a through mode, the vent pipe is connected with the pressure gauge in a through mode, and the pointer is connected with the central shaft in a rotating mode.
Compared with the prior art, the invention has the beneficial effects that: the optimized piston tube is mainly characterized in that a spring tube is connected with a pressure tube in the traditional pressure gauge, power is generated through deformation of the spring tube to enable a pointer to rotate, water leakage is easily caused due to the fact that the spring tube and a port are not sealed, pressure change is caused, meanwhile, leaked water remains in the pressure gauge to affect use, the waterproof performance in the pressure gauge is improved through the arrangement of power in sliding driving, in the use of the traditional pressure gauge, because the ambient temperature is too high, the indicated value of an instrument does not return to zero or the indicated value is out of tolerance, a rubber sealing plug on the upper portion of a meter shell is required to be cut off normally, the inner cavity of the instrument is communicated with the atmosphere, the waterproof performance of the pressure gauge is affected, the pressure water tube is in through connection with the piston tube, a piston is pushed to move in the piston tube under the condition that liquid moves upwards, and a push rod on one side of the piston is, consequently can drive the connecting rod and rotate on the manometer when the push rod motion, thereby the one end of connecting rod can drive the motion of core and make the hairspring take place elastic deformation, make the pointer rotate on the center pin and obtain corresponding reading, setting through the breather pipe, the sealing plug of internally mounted at the breather pipe is elastic rubber material component, when the high instrument abnormal work that leads to of appearance temperature, can utilize the pipeline that link up to insert in the sealing plug and the atmosphere communicates with each other and improves, can blow in steam through external pipeline in chilly weather in to the breather pipe simultaneously, thereby evaporate the effect of inside vapor, guarantee inside can not appear freezing the condition emergence that influences the use, thereby the sealing plug of elastic rubber material can take place to kick-back when taking out the pipeline and will be airtight, reuse sealed lid covers the breather pipe, thereby reach waterproof effect.
Drawings
FIG. 1 is a schematic structural view of a waterproof sealing structure for a pressure gauge;
FIG. 2 is a schematic view of a pressure gauge in a waterproof sealing structure that can be used for the pressure gauge;
FIG. 3 is a schematic view of the piston tube in a waterproof sealing structure for a pressure gauge;
fig. 4 is a schematic cross-sectional view of a pressure gauge in a watertight seal structure that may be used with the pressure gauge.
In the figure: 1. a pressure gauge; 2. a breather pipe; 3. a dial scale; 4. a pointer; 5. a pressure gauge joint; 6. a working water pipe; 7. a ball valve; 8. a piston tube; 9. a seal ring; 101. a movement; 102. a balance spring; 103. a central shaft; 104. adjusting screws; 105. a connecting rod; 106. a pressure water pipe; 107. mounting a support rod; 201. a sealing plug; 202. an instrument cover; 203. a sealing groove; 801. a piston; 802. a limit stop block; 803. a push rod; 804. and (7) rotating the ring.
Detailed Description
Referring to fig. 1 to 4, in an embodiment of the present invention, a waterproof sealing structure for a pressure gauge includes a pressure gauge 1, a vent pipe 2 is installed above the pressure gauge 1, a central shaft 103 is installed inside the pressure gauge 1, an upper end of the central shaft 103 is connected with a pointer 4, a dial 3 is disposed outside the pointer 4, a pressure gauge joint 5 is installed at a lower end of the pressure gauge 1, a working water pipe 6 is connected right below the pressure gauge joint 5, a ball valve 7 is installed at one side of the working water pipe 6, and a sealing ring 9 is installed at the other side of the working water pipe 6.
In fig. 1, 2, 3, 4: the rear end of a central shaft 103 is provided with a balance spring 102, the lower end of the balance spring 102 is provided with a movement 101, the outer side of the movement 101 is provided with a connecting rod 105, the joint of the connecting rod 105 and the movement 101 is provided with an adjusting screw 104, the upper end of the connecting rod 105 is provided with a piston tube 8, one end of the piston tube 8 is connected with a pressure water pipe 106, the lower end of the central shaft 103 is provided with a mounting support rod 107, the piston 801 is mounted in the piston tube 8, one side of the piston 801 is provided with a push rod 803, one end of the push rod 803 is provided with a rotating ring 804, the inner side of the piston tube 8 is provided with a limit stop 802, the inner side of a vent pipe 2 is provided with a sealing plug 201, the front surface of a pressure gauge 1 is provided with an instrument cover 202, one side of the instrument cover 202 is provided with a sealing groove 203, the sealing, push rod 803 is fixedly connected with piston 801, swivel 804 is through-connected with push rod 803, hairspring 102 is the elastic material component, connecting rod 105 is connected with pressure gauge 1 through the pivot rotation, penstock 106 is connected with piston pipe 8 through-going, center pin 103 is connected with installation branch 107 rotation, adjusting screw 104 is connected with connecting rod 105 rotation, pressure gauge 1 is connected with working water pipe 6 through the pipeline through-going, breather pipe 2 is connected with pressure gauge 1 through-going, pointer 4 is connected with center pin 103 rotation.
In fig. 1, 3, 4: the limit stop 802 acts to limit the piston 801, and when the piston 801 moves to the position of the limit stop 802, the maximum pressure index of the pressure gauge 1 is obtained, and the instrument cover 202 is installed through the sealing groove 203 and the pressure gauge 1, so that the waterproof performance of the front surface of the device is ensured.
The working principle of the invention is as follows: the pressure gauge 1 is connected with the working water pipe 6 in a through mode, the pressure water pipe 106 enters the inside of the working water pipe 6 through a pipeline at the lower end of the pressure gauge 1, when liquid in the working water pipe 6 flows, under the action of pressure, the liquid can enter the inside of the pressure gauge 1 through the pressure water pipe 106, the pressure water pipe 106 is connected with the piston pipe 8 in a through mode, the liquid can extrude and push the piston 801 to move in the piston pipe 8 under the condition of upward movement, the push rod 803 on one side of the piston 801 is connected with the connecting rod 105 through the rotating ring 804, therefore, when the push rod 803 moves, the connecting rod 105 can be driven to rotate on the pressure gauge 1, one end of the connecting rod 105 can drive the movement of the movement 101 to enable the balance spring 102 to generate elastic deformation, the pointer 4 can rotate on the central shaft 103 to obtain corresponding reading, most of the traditional pressure gauge is connected with the pressure pipe through, because the spring tube and the port are not sealed, water leakage is easy to cause, so that pressure change is caused, and meanwhile, the leaked water remains in the pressure gauge 1 to influence the use, the arrangement that the piston 801 slides in the piston tube 8 to drive the push rod 803 to do power improves the waterproof performance in the pressure gauge 1, in the use of the traditional pressure gauge 1, because the ambient temperature is overhigh, the indicated value of the instrument does not return to zero or the indicated value is out of tolerance, the sealing rubber plug on the upper part of the shell is generally required to be cut off to enable the inner cavity of the instrument to be communicated with the atmosphere, so that the waterproof performance of the pressure gauge 1 can be influenced, the sealing plug 201 arranged in the vent pipe 2 is an elastic rubber component, when the temperature is high, the instrument works abnormally, the sealing plug can be inserted into the sealing plug 201 by using a through pipeline to improve the communication with the atmosphere, and meanwhile, hot gas can be blown into, thereby the effect of the inside vapor of evaporation manometer 1 guarantees that the condition emergence that influences the use that freezes can not appear in manometer 1 inside, thereby the sealing plug 201 of elasticity rubber material can take place to kick-back when taking out the pipeline simultaneously and airtight with breather pipe 2, recycles sealed lid and covers breather pipe 2 to reach waterproof effect.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.
Claims (9)
1. The utility model provides a waterproof sealing structure that can be used to manometer, includes manometer (1), its characterized in that, breather pipe (2) are installed to the top of manometer (1), and the internally mounted of manometer (1) has center pin (103), the upper end of center pin (103) is connected with pointer (4), the outside of pointer (4) is provided with calibrated scale (3), pressure meter connector (5) are installed to the lower extreme of manometer (1), be connected with work water pipe (6) under pressure meter connector (5), ball valve (7) are installed to one side of work water pipe (6), and sealing ring (9) are installed to the opposite side of work water pipe (6).
2. The waterproof sealing structure for the pressure gauge according to claim 1, wherein a balance spring (102) is arranged at the rear end of the central shaft (103), a movement (101) is installed at the lower end of the balance spring (102), a connecting rod (105) is installed on the outer side of the movement (101), an adjusting screw (104) is installed at the joint of the connecting rod (105) and the movement (101), a piston pipe (8) is installed at the upper end of the connecting rod (105), one end of the piston pipe (8) is connected with a pressure water pipe (106), and an installation support rod (107) is installed at the lower end of the central shaft (103).
3. The waterproof sealing structure for the pressure gauge according to claim 1, wherein a piston (801) is installed inside the piston tube (8), a push rod (803) is installed on one side of the piston (801), a rotating ring (804) is arranged at one end of the push rod (803), and a limit stop (802) is installed on the inner side of the piston tube (8).
4. The waterproof sealing structure for the pressure gauge according to claim 1, wherein a sealing plug (201) is installed inside the vent pipe (2), an instrument cover (202) is installed on the front surface of the pressure gauge (1), and a sealing groove (203) is formed in one side of the instrument cover (202).
5. The waterproof sealing structure for the pressure gauge according to claim 4, wherein the sealing groove (203) is fixedly connected with the gauge cover (202), the sealing plug (201) is fixedly connected with the vent pipe (2), and the sealing plug (201) is a rubber member.
6. The waterproof sealing structure for the pressure gauge according to claim 3, wherein the piston (801) is slidably connected with the piston tube (8), the push rod (803) is fixedly connected with the piston (801), and the swivel (804) is communicated with the push rod (803).
7. The waterproof and sealing structure for the pressure gauge according to claim 2, wherein the balance spring (102) is an elastic member, the connecting rod (105) is rotatably connected with the pressure gauge (1) through a rotating shaft, and the pressure water pipe (106) is connected with the piston pipe (8) in a penetrating manner.
8. A watertight sealing structure for a pressure gauge according to claim 2, characterized in that said central shaft (103) is rotatably connected to a mounting rod (107), and said adjusting screw (104) is rotatably connected to a connecting rod (105).
9. The waterproof sealing structure for the pressure gauge according to claim 1, wherein the pressure gauge (1) is connected with the working water pipe (6) through a pipeline, the vent pipe (2) is connected with the pressure gauge (1) through a pipeline, and the pointer (4) is rotatably connected with the central shaft (103).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911165823.9A CN111122048A (en) | 2019-11-25 | 2019-11-25 | Waterproof sealing structure for pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911165823.9A CN111122048A (en) | 2019-11-25 | 2019-11-25 | Waterproof sealing structure for pressure gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111122048A true CN111122048A (en) | 2020-05-08 |
Family
ID=70496617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911165823.9A Withdrawn CN111122048A (en) | 2019-11-25 | 2019-11-25 | Waterproof sealing structure for pressure gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111122048A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112179558A (en) * | 2020-10-10 | 2021-01-05 | 郭鑫 | Fluid pressure detector in pipeline with pneumatic pressure measurement structure |
| CN116734067A (en) * | 2023-08-16 | 2023-09-12 | 华能酒泉发电有限公司 | Connecting device for thermal control instrument |
-
2019
- 2019-11-25 CN CN201911165823.9A patent/CN111122048A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112179558A (en) * | 2020-10-10 | 2021-01-05 | 郭鑫 | Fluid pressure detector in pipeline with pneumatic pressure measurement structure |
| CN116734067A (en) * | 2023-08-16 | 2023-09-12 | 华能酒泉发电有限公司 | Connecting device for thermal control instrument |
| CN116734067B (en) * | 2023-08-16 | 2023-11-17 | 华能酒泉发电有限公司 | Connecting device for thermal control instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200508 |