Pressure gauge for measuring water pressure

Abstract

The utility model discloses a pressure gauge for measuring water pressure, which comprises a measuring communicating pipe, an air inlet testing structure is arranged on the outer wall of one side of the measuring communicating pipe in a communicating manner, a pipeline connecting structure is arranged at one end of the measuring communicating pipe, and a reading dial plate is connected with the other end of the measuring communicating pipe in a communicating manner. According to the invention, double functions of air tightness detection and pressure measurement are realized, additional detection devices or pretreatment steps are not needed, the test efficiency is greatly improved, the air tightness condition of the to-be-tested pipeline can be accurately judged by directly observing the change of the pressure value on the reading dial plate, and the test deviation caused by misoperation or equipment limitation is avoided. No extra detection device needs to be purchased, so that the test cost is reduced. And meanwhile, the operation is simple and convenient, so that the labor cost is reduced. The situation that water supply pressure testing lacks accuracy or water leakage occurs in the pressure testing process is effectively avoided, and the safety of a water supply system is enhanced.

Description

Technical Field

[0001] The utility model relates to the field of pressure gauges, in particular to a pressure gauge for measuring water pressure. Background Art

[0002] During the maintenance and inspection of water supply systems, air tightness testing of pipelines is a crucial step in ensuring stable and safe water supply pressure. Traditional air tightness testing methods often require the installation of complex detection devices in the pipelines, or rely on manual observation and recording to determine if there are leaks. These methods are not only cumbersome to operate, but are also prone to inaccurate test results due to human factors or equipment limitations. This is particularly true in environments where frequent pressure testing is required, such as high-rise buildings and large industrial parks. Traditional testing methods are not only inefficient but also fail to meet the requirements for test accuracy and timeliness.

[0003] Furthermore, existing water pressure gauges often cannot directly verify the airtightness of pipelines during testing, requiring additional preparation before testing, such as installing additional testing equipment or performing pretreatment. This not only increases testing costs and time, but can also lead to deviations in test results due to improper operation.

[0004] How to invent a pressure gauge for measuring water pressure to improve these problems has become an urgent problem to be solved by those skilled in the art. Utility Model Content

[0005] To address these shortcomings, the present invention provides a water pressure gauge designed to improve existing water pressure gauges, which often cannot directly detect the airtightness of pipelines during testing. This often requires additional preparatory work before testing, such as installing additional testing equipment or performing pretreatment. This not only increases testing costs and time, but can also lead to biased test results due to improper operation.

[0006] The utility model is implemented as follows: a pressure gauge for measuring water pressure includes a measuring connecting pipe, an outer wall of one side of the measuring connecting pipe is connected to an air intake test structure, one end of the measuring connecting pipe is provided with a pipeline connection structure, and the other end of the measuring connecting pipe is connected to a reading dial.

[0007] 20. The repairing kit for automotive dents, according to claim 19, wherein a bottom of the foot stand comprises a through-hole, and the two foot pieces comprise two bosses, wherein the bosses comprise a through-hole, a screw bolt, and a nut. The bosses comprise a through-hole, a screw bolt, and a nut. The bosses comprise a through-hole, a screw bolt, and a nut. The bosses comprise a through-hole, a screw bolt, and a nut.

[0008] In a preferred technical solution of the present invention, a sealing gasket is further provided on the surface of the sealing ring that abuts against the housing.

[0009] In a preferred technical solution of the present invention, a limiting protrusion is integrally provided on the portion of the sliding rod located inside the connecting portion, and inner walls of the openings at both ends of the connecting portion are provided with abutment structures corresponding to the limiting protrusion.

[0010] In a preferred technical solution of the present invention, a limiting ring with a conical outer wall is sleeved on the outer wall of the shell, and a conical structure corresponding to the limiting ring is provided on the inner wall of the shell.

[0011] In a preferred technical solution of the present invention, a second mounting external thread is further provided on the outer wall of the other end of the mounting tube, and a protective cap is threadedly connected to the second mounting external thread.

[0012] In a preferred technical solution of the present invention, the pipeline connection structure includes a buckle cover, a threaded sleeve is provided on the top of the buckle cover, a threaded connection part is integrally provided on the end of the measuring connecting pipe away from the reading dial, the threaded connection part is threadedly connected in the threaded sleeve, an internal thread is provided on the inner wall of the buckle cover, a sealing gasket is provided on the inner wall of the top of the buckle cover, and a number of evenly distributed anti-slip stripes are provided on the outer wall of the buckle cover.

[0013] The beneficial effects of the present invention are as follows: the pressure gauge for measuring water pressure obtained by the present invention through the above design realizes the dual functions of air tightness detection and pressure measurement through the integrated air intake test function when in use, without the need for additional detection devices or preprocessing steps, thereby greatly improving the test efficiency; by directly observing the pressure value changes on the reading dial, the air tightness of the pipeline to be tested can be accurately judged, thereby avoiding test deviations caused by improper operation or equipment limitations; there is no need to purchase additional detection devices, thereby reducing the test cost; at the same time, due to the simple operation, the labor cost is also reduced, effectively avoiding the lack of accuracy in the water supply pressure test or water leakage during the pressure test, thereby enhancing the safety of the water supply system. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 This is a schematic three-dimensional diagram of the overall structure provided by an embodiment of the present utility model;

[0016] Figure 2 A schematic three-dimensional diagram of the overall cross-sectional structure provided for an embodiment of the present utility model;

[0017] Figure 3 A schematic three-dimensional diagram of the measurement connecting pipe and the overall cross-sectional separation structure of the measurement connecting pipe provided in an embodiment of the present utility model;

[0018] Figure 4 A schematic three-dimensional diagram of the overall internal structure of the air intake test structure provided in an embodiment of the present utility model;

[0019] Figure 5 A schematic three-dimensional diagram of the separated structure of the core part of the air intake test structure provided by an embodiment of the present utility model;

[0020] Figure 6 This is a schematic three-dimensional diagram of the cross-sectional structure of the core part of the intake test structure provided in an embodiment of the present utility model.

[0021] In the figure: 1- measuring connecting pipe; 2- air intake test structure; 3- pipeline connection structure; 4- reading dial; 101- threaded mounting hole; 102- threaded connection part; 201- mounting pipe; 202- first mounting external thread; 203- second mounting external thread; 204- protective cap; 205- thread groove; 206- connection part; 207- connection thread; 208- housing; 209- sliding rod; 210- spring; 211- sealing ring; 212- sealing gasket; 213- limiting protruding ring; 214- abutment structure; 215- limiting ring; 301- buckle cover; 302- threaded sleeve; 303- internal thread; 304- sealing gasket; 305- anti-slip stripe. DETAILED DESCRIPTION

[0022] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figures 1 to 6 The utility model provides a technical solution: a pressure gauge for measuring water pressure, comprising a measuring connecting pipe 1, an air intake test structure 2 is connected and arranged on the outer wall of one side of the measuring connecting pipe 1, a pipeline connection structure 3 is arranged at one end of the measuring connecting pipe 1, and a reading dial 4 is connected to the other end of the measuring connecting pipe 1.

[0024] See also Figures 3 to 6The intake test structure 2 includes a mounting tube 201, an outer wall of one end of the mounting tube 201 is provided with a first mounting external thread 202, a threaded mounting hole 101 is opened on the outer wall of one side of the measuring connecting tube 1, one end of the mounting tube 201 is threadedly connected to the threaded mounting hole 101 through the first mounting external thread 202, a thread groove 205 is provided on the inner wall of the end of the mounting tube 201 away from the first mounting external thread 202, a connecting portion 206 is provided inside the mounting tube 201, and a connecting thread 207 is provided on the outer wall of the connecting portion 206 to cooperate with the thread groove 205. One end of the connecting portion 206 is connected to the outer shell 208, and both sides of the connecting portion 206 The outer wall is provided with a flat-section structure, and each flat-section structure surface is provided with an air port connected to the interior of the connecting part 206. A through hole is provided on the surface of the end of the connecting part 206 away from the outer shell 208, and a sliding rod 209 is inserted into the through hole. The sliding rod 209 passes through the connecting part 206 and the outer shell 208. The sliding rod 209 is provided with a spring 210, and the spring 210 is located inside the outer shell 208. One end of the sliding rod 209 is also fixedly provided with a sealing ring 211. The two ends of the spring 210 are respectively fixedly connected to the inner wall of one end of the outer shell 208 and the one side surface of the sealing ring 211. The one side surface of the sealing ring 211 abuts against the edge of the opening at one end of the outer shell 208.

[0025] The mounting tube 201 is threadedly connected to the threaded mounting hole 101 of the measuring connecting tube 1 through the first mounting external thread 202 to fix the air intake test structure 2. The connecting portion 206 is threadedly mounted inside the mounting tube 201 through the connecting thread 207. At this time, the connecting portion 206 and the outer shell 208 are all located in the mounting tube 201. When gas is injected into the interior of the mounting tube 201 from one end, the air pressure enters the outer shell 208 through the air port set on the outer wall of the connecting portion 206, and pushes the sealing ring 211 set on the sliding rod 209, thereby driving the sliding rod 209 to move toward the side of the measuring connecting tube 1. After the opening at one end of the outer shell 208 is separated from the sealing ring 211, the gas will enter from the outer shell 208. Into the measuring connecting tube 1, and then from the measuring connecting tube 1 into the pipeline to be measured. After the gas injection is cancelled, under the pull of the spring 210, the sliding rod 209 is reset and drives the sealing ring 211 to abut against the opening at one end of the shell 208 again, so that the shell 208 as a whole returns to a sealed state to prevent the gas entering the measuring connecting tube 1 from flowing back. After injecting a certain pressure gas, wait for a while to observe whether the pressure value displayed on the reading dial 4 changes. If the pressure does not change, it proves that there is no leakage in the pipeline. Otherwise, it proves that there is insufficient airtightness in the pipeline.

[0026] Furthermore, a sealing gasket 212 is provided on the surface of the sealing ring 211 that contacts the housing 208 .

[0027] The sealing gasket 212 is used to enhance the sealing between the sliding rod 209 and the housing 208, preventing gas or water from leaking through the gap when the one-way valve is closed. This improves the sealing performance of the intake test structure 2 and ensures the accuracy and safety of the test.

[0028] Furthermore, a limiting protruding ring 213 is integrally provided on the portion of the sliding rod 209 located inside the connecting portion 206 , and abutting structures 214 corresponding to the limiting protruding ring 213 are provided on the inner walls of the openings at both ends of the connecting portion 206 .

[0029] The cooperation between the limiting protruding ring 213 and the abutting structure 214 limits the movement range of the sliding rod 209 in the connecting portion 206, preventing the sliding rod 209 from being ejected or falling off under excessive pressure, thereby enhancing the stability and reliability of the intake test structure 2 and ensuring the smooth progress of the test.

[0030] Furthermore, a limiting ring 215 with a conical outer wall is sleeved on the outer wall of the shell 208 , and a conical structure corresponding to the limiting ring 215 is provided on the inner wall of the shell 208 .

[0031] Retaining ring 215 cooperates with the tapered structure of the inner wall of housing 208 to further secure housing 208 and prevent it from deforming or falling off under external pressure. Furthermore, retaining ring 215 is made of rubber, which improves the airtightness between the outer wall of housing 208 and the inner wall of mounting tube 201, enhancing the overall stability and durability of intake test structure 2 and extending the service life of the pressure gauge.

[0032] Furthermore, a second external mounting thread 203 is provided on the outer wall of the other end of the mounting tube 201 , and a protective cap 204 is threadedly connected through the second external mounting thread 203 .

[0033] Protective cap 204 is threadedly connected to mounting tube 201 via second external mounting thread 203, protecting the interior of intake test structure 2 from contamination or damage when not in use. The provision of protective cap 204 enhances the protective performance of intake test structure 2, ensuring its safety and reliability when not in use.

[0034] Furthermore, the pipeline connection structure 3 includes a buckle cover 301, a threaded sleeve 302 is provided on the top of the buckle cover 301, a threaded connection part 102 is integrally provided at the end of the measuring connecting pipe 1 away from the reading dial 4, the threaded connection part 102 is threadedly connected in the threaded sleeve 302, an internal thread 303 is provided on the inner wall around the buckle cover 301, a sealing gasket 304 is provided on the inner wall at the top of the buckle cover 301, and a number of evenly distributed anti-slip stripes 305 are provided on the outer wall around the buckle cover 301.

[0035] The buckle cover 301 is threadedly connected to the threaded connection portion 102 of the measuring connecting pipe 1 through the threaded sleeve 302 to achieve the connection between the pressure gauge and the pipeline to be measured. The internal thread 303 provided on the inner wall around the buckle cover 301 is used to connect to the pipeline to be measured, and the sealing gasket 304 is used to enhance the sealing of the connection to prevent water leakage. The provision of the anti-slip stripes 305 facilitates the user to install and remove the buckle cover 301. The design of the pipeline connection structure 3 enables the pressure gauge to be easily connected to the pipeline to be measured and ensures the tightness and stability of the connection. At the same time, the provision of the sealing gasket 304 and the anti-slip stripes 305 improves the sealing performance of the connection and the convenience of operation.

[0036] Working principle: First, install the whole at one end of the pipeline to be measured through the pipeline connection structure 3, close the valve of the pipeline to be measured located in the room, remove the protective cap 204, and connect the air compressor or other gas delivery device to one end of the installation pipe 201 to deliver gas to the inside of the installation pipe 201. The gas enters the interior of the connection part 206 through the gas port opened on the flat cross-section structure of the outer wall on both sides of the connection part 206, and pushes the sealing ring 211 through the shell 208, thereby driving the sliding rod 209 to move toward the side of the measuring connecting pipe 1 as a whole, so that the sealing ring 211 and the opening at one end of the shell 208 are out of contact, and the gas can smoothly enter the measuring pipe 1. The gas flows into the connecting pipe 1 and then into the pipeline to be tested through the measuring connecting pipe 1. When the pressure in the pipeline to be tested reaches a certain level, the gas injection is stopped. Driven by the spring 210, the sliding rod 209 is reset as a whole, and the sealing ring 211 returns to the state of abutting against the opening at one end of the shell 208 to achieve the overall sealing of the air intake test structure 2. Wait for a while to observe the pressure value displayed on the reading dial 4. By observing whether the pressure value changes, the air tightness of the pipeline to be tested can be judged, thereby avoiding the problem of poor air tightness in the pipeline to be tested, resulting in a lack of accuracy in the water supply pressure test or water leakage during the pressure test.

[0037] It should be noted that the specific model and specifications of the reading dial 4 need to be selected and determined based on the actual specifications of the device, and the specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail.

[0038] The power supply and principle of the reading dial 4 are clear to those skilled in the art and will not be described in detail here.

[0039] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A pressure gauge for measuring water pressure, characterized in that: It comprises a measuring connecting pipe, an outer wall of one side of the measuring connecting pipe is connected with an air intake test structure, one end of the measuring connecting pipe is provided with a pipeline connection structure, and the other end of the measuring connecting pipe is connected with a reading dial.

2. The pressure gauge for measuring water pressure according to claim 1, wherein: The cam is secured to the outer wall of the casing and has a first end secured thereto, the second end of the cam being secured to the inner wall of the casing and a second end of the cam being secured thereto.

3. The pressure gauge for measuring water pressure according to claim 2, wherein: A sealing gasket is also provided on the surface of the sealing ring that abuts against the shell.

4. The pressure gauge for measuring water pressure according to claim 2, wherein: A limiting protruding ring is integrally provided on the portion of the sliding rod located inside the connecting portion, and inner walls of openings at both ends of the connecting portion are both provided with abutment structures corresponding to the limiting protruding ring.

5. The pressure gauge for measuring water pressure according to claim 2, wherein: A limiting ring with a conical outer wall is sleeved on the outer wall of the shell, and a conical structure corresponding to the limiting ring is provided on the inner wall of the shell.

6. The pressure gauge for measuring water pressure according to claim 2, wherein: A second external mounting thread is further provided on the outer wall of the other end of the mounting tube, and a protective cap is threadedly connected via the second external mounting thread.

7. The pressure gauge for measuring water pressure according to claim 1, wherein: The pipeline connection structure includes a buckle cover, a threaded sleeve is provided on the top of the buckle cover, a threaded connection part is integrally provided at the end of the measuring connecting pipe away from the reading dial, the threaded connection part is threadedly connected in the threaded sleeve, an internal thread is provided on the inner wall of the buckle cover, a sealing gasket is provided on the inner wall of the top of the buckle cover, and a number of evenly distributed anti-slip stripes are provided on the outer wall of the buckle cover.

Images