Double-outer-thread base ball valve integrated with pressure measuring function

Abstract

The utility model belongs to the technical field of gas pipeline pressure measurement, and particularly relates to a double-outer-thread base ball valve integrated with a pressure measurement function. On the basis of the structure of an original ball valve, at least one pressure measuring opening is formed in the air inlet connecting pipe or the air outlet connecting pipe, a pressure measuring connector is arranged on the pressure measuring opening, and the pressure measuring connector is connected with a pressure detecting device through a pipeline. Due to the improvement, when ventilation acceptance check and indoor security check are carried out, the pipeline does not need to be dismantled, and a pipeline leakproofness test can be carried out only by connecting a pressure measuring device through the pressure measuring port. By means of the design, the air leakage risk possibly caused by repeated disassembly and assembly of the connector is effectively avoided, and the convenience and safety of detection are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas pipeline pressure measurement, and particularly relates to a double outer ribbon base ball valve with integrated pressure measurement function. Background Art

[0002] For customized indoor natural gas installations, both exposed and concealed installations require separate ball valves in front of gas appliances. Water heaters often use a double-threaded ball valve with a base. While this ensures installation quality and aesthetics, after installation, the pipe tightness test often requires removing the joint at the water heater and then testing it with a pressure measuring device. Upon restoration, the removed joint cannot be retested. There is no comparable solution on the market to address this issue. Furthermore, after installation using this method, both natural gas ventilation acceptance and indoor safety inspections require the pipe to be removed for tightness testing. Repeated assembly and disassembly of the joint increases the risk of leaks.

[0003] The above information disclosed in the background technology section is only used to enhance the understanding of the background technology of the technology described in this article. Therefore, the background technology may contain certain information that does not form the prior art known in this country to those skilled in the art. Utility Model Content

[0004] To address the shortcomings of the prior art, this utility model proposes a double-ribbon base ball valve with integrated pressure measurement. This integrated valve opening and closing function and pipeline pressure measurement ensure both a stylish and aesthetically pleasing installation while enabling pressure measurement at the valve itself, facilitating subsequent safety inspections and routine maintenance.

[0005] The technical solutions adopted in this utility model are as follows:

[0006] A double-outer-ribbon-base ball valve with an integrated pressure measuring function comprises a valve seat, an air inlet pipe and an air outlet pipe connected to the valve ports on the left and right ends of the valve seat, a valve core located inside the valve seat, and a valve stem for driving the valve, and at least one pressure measuring port is provided on the air inlet pipe or the air outlet pipe.

[0007] As a further optimization of the present invention, a pressure measuring joint is provided on the pressure measuring port, and the pressure measuring joint is connected to a pressure detection device through a pipeline.

[0008] As a further optimization of the present invention, the pressure measuring joint includes a joint body and a cap. The joint body is fixedly connected to the tube body of the air inlet pipe or the air outlet pipe. The cap is usually installed on the top of the joint body, and the cap is connected to the joint body by a thread or a snap.

[0009] As a further optimization of the present invention, a water seal chamber is provided in the middle part of the joint body, the chamber is filled with liquid, an air outlet is provided on the top of the joint body, an air inlet is provided on the bottom, the air inlet channel is bent, the air inlet channel is connected to the top of the water seal chamber, the air outlet channel is also bent, and the air outlet channel is connected to the middle position of the top of the water seal chamber.

[0010] As a further optimization of the present invention, a float valve core is further provided inside the water seal chamber, and the float valve core blocks the air outlet channel at the top of the water seal chamber upwards under the action of buoyancy.

[0011] As a further optimization of the present invention, a sealing ring is embedded in the contact portion between the air outlet channel and the water seal chamber.

[0012] As a further optimization of the present invention, the shape of the float valve core adopts a spherical shape that is adapted to the inlet of the air outlet channel.

[0013] As a further optimization of the present invention, the top shape of the water seal chamber is designed to be an arc shape, and the entrance of the air outlet channel is located at the center of the arc shape.

[0014] As a further optimization of the present invention, a push rod is provided on the top of the joint body, and a vertical threaded through hole is provided at the center of the top of the joint body. The threaded through hole is connected to the air outlet channel and points directly above the float valve core. The push rod is threadedly connected in the vertical threaded through hole.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0016] Overall, compared to existing technologies, the double-ribbon base ball valve with integrated pressure measurement provided by this utility model builds on the existing ball valve structure by providing at least one pressure-gauging port on either the inlet or outlet pipe. This improvement eliminates the need to remove pipes during ventilation inspections and indoor safety checks; simply connect a pressure-measuring device through the pressure-gauging port to conduct pipeline tightness tests. This design effectively avoids the risk of leaks caused by repeated disassembly and assembly of connectors, improving the convenience and safety of testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be described by way of examples with reference to the accompanying drawings, in which:

[0018] Figure 1 This is a front view of the double outer ribbon base ball valve in the utility model;

[0019] Figure 2 This is a top view of the double outer ribbon base ball valve in the utility model;

[0020] Figure 3This is a side view of the double outer ribbon base ball valve in the utility model;

[0021] Figure 4 This is a structural diagram of an embodiment of a pressure measuring joint in the present invention;

[0022] Figure 5 This is a structural diagram of another embodiment of the pressure measuring connector in the present invention. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of this application.

[0024] This embodiment provides a double outer ribbon seat ball valve with integrated pressure measurement function, see Figure 1-3 The valve seat 1 comprises at least a valve seat 1, an inlet pipe 2 and an outlet pipe 3 connected to the valve ports on the left and right ends of the valve seat 1, a valve core located within the valve seat 1, and a valve stem 17 for driving the valve. The inlet pipe 2 and the outlet pipe 3 are provided with external threaded ports 5 at both ends for connecting to a gas pipeline. The valve core is conventional, and the principles of controlling the flow of gas between the inlet pipe 2 and the outlet pipe 3 are well known and are not an improvement point of the present application, so they will not be described in detail.

[0025] As an improvement of this application, at least one pressure gauge port 4 is provided on the air inlet pipe 2 or the air outlet pipe 3. This improvement allows for pipeline tightness testing during ventilation acceptance and indoor safety inspections without removing the pipeline. Simply connect a pressure measuring device through the pressure gauge port 4 to conduct the pipeline tightness test. This design effectively avoids the risk of air leakage caused by repeated disassembly and assembly of the joint, improving the convenience and safety of testing.

[0026] It should be noted that the pressure measuring device uses components existing in the prior art, such as a pressure gauge, a digital pressure sensor or other standard pressure detection equipment. These devices can be connected to the pressure measuring port 4 through a standard interface to achieve real-time pressure monitoring and recording.

[0027] Specifically, a pressure gauge can be directly connected to pressure port 4, providing intuitive pressure readings and facilitating on-site inspections. A digital pressure sensor can transmit pressure data to a monitoring system via wireless or wired means, enabling remote monitoring and data analysis. Furthermore, other standard pressure testing equipment can be connected to pressure port 4 via an adapter interface to meet diverse testing needs.

[0028] By utilizing proven components from existing technologies, the ball valve design of this application ensures system reliability and compatibility while reducing development costs and time. The flexible and diverse selection of pressure measurement devices allows for configuration based on specific application scenarios and testing requirements, enhancing the practicality and adaptability of this utility model.

[0029] In a specific embodiment, see Figure 4 The pressure measuring port 4 is provided with a pressure measuring joint 6, which consists of a joint body 7 and a cap 8. The joint body 7 is fixedly connected to the pipe body of the air inlet pipe 2 or the air outlet pipe 3. The cap 8 is usually installed on the top of the joint body 7 to protect the internal passage of the joint body 7 from contamination. The cap 8 is connected to the joint body 7 by threads or snaps, which facilitates removal and installation.

[0030] A water-sealed chamber 9 is provided in the middle of the connector body 7, which contains a certain amount of liquid water or a specific sealing liquid. An air outlet 10 is provided at the top of the connector body 7, and an air inlet 11 is provided at the bottom. The air inlet 11 is provided at the bottom of the connector body 7, and an air inlet channel 12 is curved and connected to the top of the water-sealed chamber 9. The air outlet 10 is provided at the top of the connector body 7, and an air outlet channel 13 is also curved and connected to the middle of the top of the water-sealed chamber 9.

[0031] A float valve core 14 is further provided inside the water seal chamber 9 . Under the action of buoyancy, the float valve core 14 blocks the air outlet channel 13 at the top of the water seal chamber 9 upwards, thereby sealing the air outlet channel 13 .

[0032] Furthermore, a sealing ring is embedded in the contact portion between the air outlet channel 13 and the water seal chamber 9. The sealing ring and the float valve core 14 together constitute a sealed environment of the water seal chamber 9 to prevent the gas in the gas pipeline from leaking into the air through the water seal chamber 9 when not in use.

[0033] Furthermore, the shape of the float valve core 14 is preferably spherical, adapted to the inlet of the air outlet channel 13. When selecting the material of the float valve core 14, it is necessary to consider both its buoyancy in the liquid and its sealing performance with respect to the air outlet channel 13. Experiments have shown that polytetrafluoroethylene (PTFE) and high-density polyethylene (HDPE) are ideal choices. These two materials not only provide sufficient buoyancy and good sealing performance, but also maintain the stability and durability of the materials during long-term use. If the application environment requires higher mechanical strength or high-temperature resistance, stainless steel is also an alternative. Despite its higher density, it can provide buoyancy by designing a hollow structure inside the float.

[0034] In a specific embodiment, a push rod 15 is provided on the top of the joint body 7. In the specific connection method, a vertical threaded through hole 16 is provided at the center of the top of the joint body 7. The threaded through hole is connected to the air outlet channel 13 and is directly opposite to the top of the float valve core 14. When it is necessary to measure the pressure of the gas pipeline, it is necessary to release the sealing device of the water seal chamber 9, open the cap 8, and screw the push rod 15 inward. Under the action of the push rod 15, the float valve core 14 moves downward, so that the air outlet channel 13 is connected to the water seal chamber 9, and the internal pressure of the gas pipeline can be measured.

[0035] Furthermore, the top shape of the water seal chamber 9 is designed to be an arc, and the entrance of the air outlet channel 13 is located at the center of the arc. Through this design, after the pressure measurement is completed, the downward pressure of the push rod 15 on the float valve core 14 is released, ensuring that the float valve core 14 moves upward under the action of buoyancy to align with the entrance of the air outlet channel 13, thereby completing the sealing of the water seal chamber 9 again.

[0036] In another preferred embodiment, a small exhaust port can be designed in the connector body 7 to automatically exhaust excess gas when the liquid temperature changes or the gas pressure is abnormal, thereby preventing leakage caused by excessive system pressure. The connector body 7 can also be provided with an inspection port to facilitate regular inspection of the water seal liquid and replacement when necessary.

[0037] In another preferred embodiment, see Figure 5 A double water seal system is designed in the joint body 7, which includes two parallel water seal chambers 9, which control the inlet and outlet of gas respectively and serve as backup for each other. Even if one water seal chamber 9 fails, the other water seal chamber 9 can still maintain airtightness.

[0038] Furthermore, the air inlet channel 12 includes an air inlet main pipe 20 and two air inlet branch pipes 21 in parallel, and the two air inlet branch pipes 21 are respectively connected to the top of the two sets of water seal chambers 9; the air outlet channel 13 includes an air outlet main pipe 18 and two air outlet branch pipes 19 in parallel, and the two air outlet branch pipes 19 are respectively connected to the top of the two sets of water seal chambers 9.

[0039] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A double outer ribbon base ball valve with integrated pressure measurement function, comprising a valve seat (1), an air inlet pipe (2) and an air outlet pipe (3) connected to the valve ports on the left and right ends of the valve seat (1), a valve core located inside the valve seat (1) and a valve stem (17) for driving the valve, characterized in that: At least one pressure measuring port (4) is provided on the air inlet pipe (2) or the air outlet pipe (3).

2. A double outer ribbon seat ball valve with integrated pressure measurement function according to claim 1, characterized in that: The pressure measuring port (4) is provided with a pressure measuring joint (6), and the pressure measuring joint (6) is connected to a pressure detection device via a pipeline.

3. The double outer ribbon seat ball valve with integrated pressure measurement function according to claim 2 is characterized in that: The pressure measuring joint (6) comprises a joint body (7) and a cap (8); the joint body (7) is fixedly connected to the pipe body of the air inlet pipe (2) or the air outlet pipe (3); the cap (8) is usually installed on the top of the joint body (7); the cap (8) is connected to the joint body (7) by means of a thread or a buckle.

4. A double outer ribbon seat ball valve with integrated pressure measurement function according to claim 3, characterized in that: A water seal chamber (9) is provided in the middle of the joint body (7), and liquid is contained in the chamber. An air outlet (10) is provided on the top of the joint body (7), and an air inlet (11) is provided on the bottom. An air inlet channel (12) is bent and connected to the top of the water seal chamber (9). An air outlet channel (13) is also bent and connected to the middle position of the top of the water seal chamber (9).

5. The double outer ribbon seat ball valve with integrated pressure measurement function according to claim 4 is characterized in that: A float valve core (14) is also provided inside the water seal chamber (9). The float valve core (14) blocks the air outlet channel (13) at the top of the water seal chamber (9) upwards under the action of buoyancy.

6. The double outer ribbon seat ball valve with integrated pressure measurement function according to claim 4, characterized in that: A sealing ring is also embedded in the contact portion between the air outlet channel (13) and the water seal chamber (9).

7. The double outer ribbon seat ball valve with integrated pressure measurement function according to claim 5, characterized in that: The shape of the float valve core (14) is a spherical shape that matches the inlet of the air outlet channel (13).

8. The double outer ribbon seat ball valve with integrated pressure measurement function according to claim 7, characterized in that: The top of the water seal chamber (9) is designed to be in an arc shape, and the inlet of the air outlet channel (13) is located at the center of the arc.

9. The double outer ribbon seat ball valve with integrated pressure measurement function according to claim 7, characterized in that: A push rod (15) is provided on the top of the joint body (7), and a vertical threaded through hole (16) is provided at the center of the top of the joint body (7). The threaded through hole is communicated with the air outlet channel (13) and is directly facing the top of the float valve core (14). The push rod (15) is threadedly connected to the vertical threaded through hole (16).

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