Pressure gauge valve with leak detection interface

Abstract

This utility model relates to the field of connector assembly technology, specifically disclosing a pressure gauge valve with a leakage detection interface, comprising: a pressure gauge valve body, a fixed pipe fixedly installed at the lower end of the pressure gauge valve body, a connecting pipe threadedly connected to the lower end of the fixed pipe, a hand-tightening bolt threadedly connected to one end of the connecting pipe, and a drive rod fixedly installed at the inner end of the hand-tightening bolt, the drive rod being located inside the connecting pipe; this utility model requires subsequent maintenance and inspection of the pressure gauge. During inspection, by rotating the hand-tightening bolt, the hand-tightening bolt drives the drive rod to move, the ramp of the drive rod contacts the ramp on the drive ring, pushing the drive ring downwards, and the drive ring moves downwards synchronously with the sealing plate, so that the sealing gasket and the fixed ring are in tight contact, sealing the inner end of the connecting pipe, thereby allowing the pressure gauge valve body to be replaced. The operation is convenient and does not affect the normal operation of the main airflow channel during the inspection process.

Description

Technical Field

[0001] This utility model relates to the field of connector assembly technology, specifically a pressure gauge valve with a leakage detection interface. Background Technology

[0002] Pressure gauges are instruments that use elastic elements as sensing elements to measure and indicate pressures higher than ambient pressure. They are extremely common, found in almost all industrial processes and scientific research fields. They are ubiquitous in areas such as heat pipe networks, oil and gas transmission, water and gas supply systems, and vehicle repair and maintenance shops. Especially in industrial process control and technical measurement, mechanical pressure gauges are increasingly widely used due to the high mechanical strength and ease of manufacture of their elastic sensing elements.

[0003] After a period of use, the pressure gauge readings may become inaccurate. Therefore, regular maintenance and testing of the pressure gauge are necessary, and it should be replaced promptly if the readings become inaccurate. Since pressure gauges are typically installed directly on the bypass port of the airflow channel, the entire airflow channel of the equipment must be closed before the pressure gauge can be removed for testing, making the process cumbersome. Utility Model Content

[0004] The purpose of this invention is to provide a pressure gauge valve with a leakage detection interface to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pressure gauge valve with a leakage detection interface, comprising: a pressure gauge valve body, a fixed pipe fixedly installed at the lower end of the pressure gauge valve body, a connecting pipe threadedly connected to the lower end of the fixed pipe, a hand-tightening bolt threadedly connected to one end of the connecting pipe, a drive rod fixedly installed at the inner end of the hand-tightening bolt, and the drive rod located inside the connecting pipe;

[0006] A fixing ring is fixedly installed inside the connecting pipe. A sealing plate is elastically connected to the upper end of the fixing ring. A driving ring is fixedly installed at the upper end of the sealing plate. The driving rod is located above the driving ring.

[0007] Preferably, the connecting pipe and the bypass port of the main airflow channel are fixedly connected and communicate with each other.

[0008] Preferably, a threaded sleeve is fixedly installed at one end of the connecting pipe, the outer wall of the hand-tightening bolt and the inner wall of the threaded sleeve are threadedly connected, and the hand-tightening bolt and the threaded sleeve are sealed together by a sealing ring.

[0009] Preferably, a baffle is provided at the inner end of the connecting pipe, the baffle is located at the lower end of the fixing ring, and several support rods are fixedly installed at the outer end of the baffle, with the other end of the support rods fixed to the inner wall of the connecting pipe.

[0010] Preferably, a spring is fixedly installed at the upper end of the baffle, and the other end of the spring is fixedly connected to the lower end of the sealing plate. A telescopic rod is sleeved inside the spring, and one end of the telescopic rod is fixedly connected to the baffle and the other end of the telescopic rod is fixedly connected to the sealing plate.

[0011] Preferably, a sealing gasket is fixedly installed on the lower outer side of the sealing plate, and when the sealing plate moves down, the sealing gasket and the side wall of the fixing ring are in close contact.

[0012] Preferably, when the spring is in equilibrium, the sealing gasket does not contact the retaining ring.

[0013] Preferably, the front end of the hand-tightening bolt and the front end of the drive rod are both provided with ramps, and the inner and outer ends of the drive ring are both provided with ramps.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention replaces the pressure gauge valve body by fixing one end of the fixed pipe and the connecting pipe at the lower end of the pressure gauge valve body, and fixing and connecting the other end of the connecting pipe to the bypass port of the main airflow channel. The pressure gauge valve body can be used to detect the air pressure value in the main airflow channel. After the entire equipment has been running for a period of time, the pressure gauge usually needs to be maintained and inspected. During the inspection, the hand-tightening bolt is turned, which drives the drive rod to move. The ramp of the drive rod contacts the ramp on the drive ring, pushing the drive ring down. The drive ring moves down synchronously with the sealing plate, allowing the sealing gasket to contact the fixed ring tightly and sealing the inner end of the connecting pipe. The pressure gauge valve body can then be replaced. The operation is convenient and does not affect the normal operation of the main airflow channel during the inspection process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the pressure gauge valve body and connecting pipe of this utility model.

[0018] Figure 3 This is a schematic cross-sectional view of the connecting pipe of this utility model;

[0019] Figure 4 This utility model Figure 3 Enlarged view of the structure of region A in the middle.

[0020] In the diagram: 1. Pressure gauge valve body; 2. Fixed pipe; 3. Connecting pipe; 4. Threaded sleeve; 5. Hand-tightening bolt; 6. Baffle; 7. Support rod; 8. Fixing ring; 9. Telescopic rod; 10. Spring; 11. Sealing plate; 12. Drive ring; 13. Sealing gasket; 14. Drive rod. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0022] Please see Figures 1-4 This utility model provides a technical solution: a pressure gauge valve with a leakage detection interface, comprising: a pressure gauge valve body 1, a fixing pipe 2 fixedly installed at the lower end of the pressure gauge valve body 1, a connecting pipe 3 threadedly connected to the lower end of the fixing pipe 2, and the connecting pipe 3 being fixedly connected and communicating with the bypass port of the main airflow channel. The pressure gauge valve body 1 can be used to detect the air pressure value in the main airflow channel. After the entire equipment has been running for a period of time, the pressure gauge usually needs to be subsequently maintained and inspected. During the inspection, the connecting pipe 3 can be tightened by turning the hand-tightening bolt 5. The inner end of the connecting pipe 3 is sealed. One end of the connecting pipe 3 is threaded with a hand-tightening bolt 5. One end of the connecting pipe 3 is fixedly installed with a threaded sleeve 4. The outer wall of the hand-tightening bolt 5 and the inner wall of the threaded sleeve 4 are threadedly connected. The hand-tightening bolt 5 and the threaded sleeve 4 are sealed together by a sealing ring, so that the hand-tightening bolt 5 can be rotated and the connection between the hand-tightening bolt 5 and the threaded sleeve 4 can be sealed. The inner end of the hand-tightening bolt 5 is fixedly installed with a drive rod 14. The drive rod 14 is located inside the connecting pipe 3. By rotating the hand-tightening bolt 5, the drive rod 14 can be moved inside the connecting pipe 3.

[0023] A fixing ring 8 is fixedly installed inside the connecting pipe 3. A sealing plate 11 is elastically connected to the upper end of the fixing ring 8. The diameter of the sealing plate 11 is larger than the inner diameter of the fixing ring 8 but smaller than the outer diameter of the fixing ring 8. A baffle 6 is provided at the inner end of the connecting pipe 3. The baffle 6 is located at the lower end of the fixing ring 8. Several support rods 7 are fixedly installed at the outer end of the baffle 6. The other end of the support rods 7 is fixed to the inner wall of the connecting pipe 3 to fix the baffle 6. A spring 10 is fixedly installed at the upper end of the baffle 6. The other end of the spring 10 is fixedly connected to the lower end of the sealing plate 11. Next, a telescopic rod 9 is sleeved inside the spring 10. One end of the telescopic rod 9 is fixedly connected to the baffle 6, and the other end of the telescopic rod 9 is fixedly connected to the sealing plate 11. A sealing gasket 13 is fixedly installed on the outer side of the lower end of the sealing plate 11. When the sealing plate 11 moves down, the sealing gasket 13 and the side wall of the fixing ring 8 are in close contact. When the spring 10 is in a balanced state, the sealing gasket 13 does not contact the fixing ring 8. The sealing plate 11 moves down by squeezing the spring 10, and at the same time, the sealing gasket 13 and the outer wall of the fixing ring 8 are in contact, thus sealing the inside of the connecting pipe 3.

[0024] A drive ring 12 is fixedly installed on the upper end of the sealing plate 11. The drive rod 14 is located above the drive ring 12. The front end of the hand-tightening bolt 5 and the front end of the drive rod 14 are both provided with ramps. The inner and outer ends of the drive ring 12 are also provided with ramps. The ramp of the drive rod 14 is located on the inner side of one end of the drive ring 12, and the ramp of the hand-tightening bolt 5 is located on the outer side of the other end of the drive ring 12. When the hand-tightening bolt 5 is rotated, the hand-tightening bolt 5 drives the drive rod 14 to move. The ramp of the drive rod 14 contacts the ramp on the drive ring 12, pushing the drive ring 12 downward. The drive ring 12 moves down synchronously with the sealing plate 11, so that the sealing gasket 13 and the fixing ring 8 are in close contact, sealing the inner end of the connecting pipe 3.

[0025] In actual use, by fixing one end of the fixed pipe 2 and the connecting pipe 3 at the lower end of the pressure gauge valve body 1, and fixing and connecting the other end of the connecting pipe 3 to the bypass port of the main airflow channel, the pressure gauge valve body 1 can be used to detect the air pressure value in the main airflow channel. After the entire equipment has been running for a period of time, the pressure gauge usually needs to be maintained and inspected. During the inspection, by turning the hand-tightening bolt 5, the hand-tightening bolt 5 drives the drive rod 14 to move. The ramp of the drive rod 14 contacts the ramp on the drive ring 12, pushing the drive ring 12 down. The drive ring 12 drives the sealing plate 11 to move down synchronously, so that the sealing gasket 13 is in close contact with the fixed ring 8, sealing the inner end of the connecting pipe 3. The pressure gauge valve body 1 can then be replaced. The operation is convenient and does not affect the normal operation of the main airflow channel during the inspection process.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A pressure gauge valve with a leakage detection interface, comprising: The pressure gauge valve body (1) has a fixed pipe (2) fixedly installed at the lower end of the pressure gauge valve body (1). The fixed pipe (2) is characterized in that: the lower end of the fixed pipe (2) is threadedly connected to a connecting pipe (3), one end of the connecting pipe (3) is threadedly connected to a hand-tightening bolt (5), and the inner end of the hand-tightening bolt (5) is fixedly installed with a drive rod (14), which is located inside the connecting pipe (3). A fixing ring (8) is fixedly installed inside the connecting pipe (3). A sealing plate (11) is elastically connected to the upper end of the fixing ring (8). A driving ring (12) is fixedly installed at the upper end of the sealing plate (11). The driving rod (14) is located above the driving ring (12).

2. A pressure gauge valve with a leakage detection interface according to claim 1, characterized in that: The connecting pipe (3) is fixedly connected to and communicates with the bypass port of the main airflow channel.

3. A pressure gauge valve with a leakage detection interface according to claim 1, characterized in that: One end of the connecting pipe (3) is fixedly installed with a threaded sleeve (4), the outer wall of the hand-tightening bolt (5) and the inner wall of the threaded sleeve (4) are threadedly connected, and the hand-tightening bolt (5) and the threaded sleeve (4) are sealed together by a sealing ring.

4. A pressure gauge valve with a leakage detection interface according to claim 1, characterized in that: The inner end of the connecting pipe (3) is provided with a baffle (6), which is located at the lower end of the fixing ring (8). Several support rods (7) are fixedly installed on the outer end of the baffle (6), and the other end of the support rods (7) is fixed on the inner wall of the connecting pipe (3).

5. A pressure gauge valve with a leakage detection interface according to claim 4, characterized in that: A spring (10) is fixedly installed on the upper end of the baffle (6), and the other end of the spring (10) is fixedly connected to the lower end of the sealing plate (11). A telescopic rod (9) is sleeved inside the spring (10), and one end of the telescopic rod (9) is fixedly connected to the baffle (6), and the other end of the telescopic rod (9) is fixedly connected to the sealing plate (11).

6. A pressure gauge valve with a leakage detection interface according to claim 5, characterized in that: A sealing gasket (13) is fixedly installed on the outer side of the lower end of the sealing plate (11). When the sealing plate (11) moves down, the sealing gasket (13) and the side wall of the fixing ring (8) are in close contact.

7. A pressure gauge valve with a leakage detection interface according to claim 6, characterized in that: When the spring (10) is in equilibrium, the sealing gasket (13) does not contact the fixing ring (8).

8. A pressure gauge valve with a leakage detection interface according to claim 1, characterized in that: The front end of the hand-tightening bolt (5) and the front end of the drive rod (14) are both provided with ramps, and the inner and outer ends of the drive ring (12) are both provided with ramps.

Images