Carbon dioxide gas meter with leakage-proof structure
By introducing sealing elements and clamping structures into the carbon dioxide gas meter, the gas leakage problem caused by the loose intake rod of the throttle pressure reducing valve was solved, thus achieving stability and safety in gas delivery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING DONGDUN ELECTRICAL & MECHANICAL CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-06-26
Smart Images

Figure CN224414492U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gas valve technology, and in particular to a carbon dioxide gas meter with a leak-proof structure. Background Technology
[0002] The dual-stage gas throttling and pressure reducing valve ensures the safe and stable operation of the gas system. Utilizing advanced technology, it boasts high reliability and precise control of gas pressure, ensuring stable output under various operating conditions. The dual-stage design effectively reduces high-pressure gas pressure, protecting equipment from damage.
[0003] Currently, the gas pressure reducing valve, as a common device for reducing the pressure of high-pressure gas, includes a valve body, an inlet rod, a pressure control cap, a pressure gauge, a flow control valve, a flow meter, and an outlet rod. The inlet rod is used to connect to the outlet end of the gas supply equipment, the outlet rod is used to connect to the gas demand equipment, the pressure gauge detects the pressure generated by the gas passing through the valve body, the pressure control cap is used to adjust the gas pressure, and the flow meter is used to detect the gas flow rate, which is then discharged through the outlet rod.
[0004] However, using the above method, since the connection between the air intake rod and the air supply equipment is not reinforced to prevent leakage, it may loosen during subsequent use, leading to gas leakage. Utility Model Content
[0005] The purpose of this invention is to provide a carbon dioxide gas meter with a leak-proof structure, which aims to solve the problem that existing gas-saving and pressure-reducing valves, due to the lack of leak-proof reinforcement in the connection between the air inlet rod and the gas supply equipment, will loosen during subsequent use, leading to gas leakage.
[0006] To achieve the above objectives, this utility model provides a carbon dioxide gas meter with a leak-proof structure, including a valve body, an inlet rod, and a detection component. The inlet rod is connected to the valve body and is located on one side of the valve body.
[0007] The detection assembly includes a pressure detection element, a flow detection element, an air outlet rod, a seal, a sealing sleeve, and two clamping structures;
[0008] The pressure detection element is disposed on one side of the valve body; the flow detection element is disposed on one side of the valve body; the air outlet rod communicates with the flow detection element and is located on the flow detection element; the sealing element is disposed on one side of the air inlet rod; the sealing sleeve is fixedly connected to the air inlet rod and is located on one side of the air inlet rod; the two clamping structures are respectively located on both sides of the sealing sleeve; the clamping structure includes an operating element, a clamping hoop, and anti-slip teeth, the operating element is disposed on one side of the sealing sleeve; the clamping hoop is fixedly connected to the operating element and is located on one side of the operating element; the anti-slip teeth are fixedly connected to the clamping hoop and are located on one side of the clamping hoop.
[0009] The pressure detection element includes a pressure gauge and a pressure control cap. The pressure gauge is fixedly connected to the valve body and is located on one side of the valve body; the pressure control cap is disposed on one side of the valve body.
[0010] The flow detection component includes a flow control valve and a flow meter. The flow control valve is connected to the valve body and the outlet rod, and is located on one side of the valve body. The flow meter is fixedly connected to the flow control valve and is located on one side of the flow control valve.
[0011] The sealing element includes an expansion ring and a sealing ring. The expansion ring is fixedly connected to the air intake rod and is located on one side of the air intake rod. The sealing ring is fixedly connected to the expansion ring and is located on one side of the expansion ring.
[0012] The operating components include an operating box, an operating screw, a knob, and a guide rod. The operating box is fixedly connected to the sealing sleeve and located on one side of the sealing sleeve. The operating screw is threadedly connected to the operating box and rotatably connected to the clamping hoop, and is located on one side of the operating box. The knob is fixedly connected to the operating screw and located on one side of the operating screw. The guide rod is slidably connected to the operating box and fixedly connected to the clamping hoop, and is located on one side of the operating box.
[0013] This utility model discloses a carbon dioxide gas meter with a leak-proof structure. During gas detection, the outlet pipe of the gas supply device is inserted and tightened to the inlet rod. At the end of the tightening, the sealing element seals and fills the gap at the beginning of the outlet pipe. Then, the operating components on both sides of the sealing sleeve are operated to tighten the clamping rings on both sides. The outlet pipe of the gas supply device mounted on the inlet rod is thus secured against leakage. The gas supply device then delivers high-pressure gas through the inlet rod into the valve body. The pressure detection element monitors the gas pressure, and the flow detection element monitors the gas flow rate. The gas is then discharged through the outlet rod. This solves the problem of gas leakage caused by the lack of leak-proof reinforcement in the connection between the inlet rod and the gas supply device in existing gas-saving and pressure-reducing valves during subsequent use. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0016] Figure 2 This is a front view of the entire utility model.
[0017] Figure 3 This is a top view of the entire utility model.
[0018] Figure 4 This is a cross-sectional view of the present invention excluding the valve body, flow detection element, and pressure detection element.
[0019] 101-Valve body, 102-Inlet rod, 103-Pressure sensor, 104-Flow sensor, 105-Outlet rod, 106-Seal, 107-Sealing sleeve, 108-Guide rod, 109-Clamping structure, 110-Operating element, 111-Clamping clamp, 112-Anti-slip teeth, 113-Pressure gauge, 114-Pressure control cap, 115-Flow control valve, 116-Flow meter, 117-Expansion ring, 118-Sealing ring, 119-Operating box, 120-Operating screw, 121-Knob. Detailed Implementation
[0020] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0021] Please see Figures 1-4 ,in, Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 2 This is a front view of the entire utility model. Figure 3 This is a top view of the entire utility model. Figure 4 This is a cross-sectional view of the present invention excluding the valve body, flow detection element, and pressure detection element.
[0022] This utility model discloses a carbon dioxide gas meter with a leak-proof structure, comprising a valve body 101, an inlet rod 102, and a detection assembly. The detection assembly includes a pressure detection element 103, a flow detection element 104, an outlet rod 105, a sealing element 106, a sealing sleeve 107, and two clamping structures 109. Each clamping structure 109 includes an operating element 110, a clamping clamp 111, and anti-slip teeth 112. The pressure detection element 103 includes a pressure gauge 113 and a pressure control cap 114. The flow detection element 104 includes a flow control valve 115 and a flow meter 116. The sealing element 106 includes an expansion ring 117 and a sealing ring 118. The operating element 110 includes an operating box 119, an operating screw 120, a knob 121, and a guide rod 108. This solution addresses the problem in existing gas-saving and pressure-reducing valves where the connection between the inlet rod and the gas supply equipment is not reinforced to prevent leaks, leading to loosening and gas leakage during subsequent use.
[0023] In this specific embodiment, the air intake rod 102 is connected to the valve body 101 and is located on one side of the valve body 101. The air intake rod 102 is used to connect to the air supply equipment, and the valve body 101 is used to cooperate with the detection component to monitor the air pressure.
[0024] The pressure detection element 103 is disposed on one side of the valve body 101; the flow detection element 104 is disposed on one side of the valve body 101; the air outlet rod 105 communicates with the flow detection element 104 and is located on the flow detection element 104; the sealing element 106 is disposed on one side of the air inlet rod 102; the sealing sleeve 107 is fixedly connected to the air inlet rod 102 and is located on one side of the air inlet rod 102; two clamping structures 109 are respectively located on both sides of the sealing sleeve 107; the operating element 110 is disposed on one side of the sealing sleeve 107; the clamping clamp 111 is fixedly connected to the operating element 110 and is located on one side of the operating element 110; the anti-slip tooth 112 is fixedly connected to the clamping clamp 111 and is located on one side of the clamping clamp 111, connecting the air outlet pipe of the air supply equipment to the air inlet rod 102. When the plug is tightened to the end, the sealing element 106 seals and fills the gap at the beginning of the gas outlet pipe of the gas supply equipment. Then, the operating elements 110 on both sides of the sealing sleeve 107 are operated to drive the clamping hoops 111 on both sides to clamp the gas outlet pipe of the gas supply equipment mounted on the inlet rod 102. This completes the leak-proof fixing treatment of the connection of the inlet rod 102. Then, the gas supply equipment delivers high-pressure gas into the valve body 101 through the inlet rod 102. The pressure detection element 103 monitors the gas pressure, and the flow detection element 104 monitors the gas flow. Then, the gas is discharged through the outlet rod 105. This solves the problem of gas leakage caused by the lack of leak-proof reinforcement in the connection between the inlet rod and the gas supply equipment in existing gas-saving and pressure-reducing valves.
[0025] Secondly, the pressure gauge 113 is fixedly connected to the valve body 101 and is located on one side of the valve body 101; the pressure control cap 114 is disposed on one side of the valve body 101, the pressure gauge 113 is used to detect the pressure generated by the gas passing through the valve body 101, and the pressure control cap 114 is used to adjust the pressure of the gas passing through the valve body 101.
[0026] Furthermore, the flow control valve 115 is connected to the valve body 101 and the outlet rod 105, and is located on one side of the valve body 101; the flow meter 116 is fixedly connected to the flow control valve 115 and is located on one side of the flow control valve 115. The flow control valve 115 is used to control the flow rate of the gas, and the flow meter 116 is used to record the metering of the gas passing through the flow control valve 115.
[0027] In addition, the expansion ring 117 is fixedly connected to the air intake rod 102 and is located on one side of the air intake rod 102; the sealing ring 118 is fixedly connected to the expansion ring 117 and is located on one side of the expansion ring 117. The expansion ring 117 cooperates with the sealing ring 118 to fill the gap at the beginning of the air outlet pipe of the air supply equipment.
[0028] Furthermore, the operation box 119 is fixedly connected to the sealing sleeve 107 and located on one side of the sealing sleeve 107; the operation screw 120 is threadedly connected to the operation box 119 and rotatably connected to the clamping hoop 111, and located on one side of the operation box 119; the knob 121 is fixedly connected to the operation screw 120 and located on one side of the operation screw 120; the guide rod 108 is slidably connected to the operation box 119 and fixedly connected to the clamping hoop 111, and located on one side of the operation box 119. Twisting the knob 121 on the operation screw 120 on the operation box 119 causes the operation screw 120 to rotate, which, in conjunction with the limiting action of the guide rod 108, drives the clamping hoop 111 to move horizontally, and the outlet pipe fixedly inserted into the air intake rod 102.
[0029] When using this utility model, the outlet pipe of the gas supply equipment is inserted and tightened to the inlet rod 102. When tightened to the end, the expansion ring 117, in conjunction with the sealing ring 118, fills the gap at the beginning of the outlet pipe of the gas supply equipment. Then, the operating parts 110 on both sides of the sealing sleeve 107 are operated respectively, and the knob 121 on the operating screw 120 on the operating box 119 is turned, causing the operating screw 120 to rotate. With the limiting action of the guide rod 108, the clamping hoop 111 is moved horizontally, fixing the outlet pipe inserted into the inlet rod 102. This completes the leak-proof fixing treatment of the inlet rod 102 connection. Then the gas supply equipment... High-pressure gas is delivered into the valve body 101 through the inlet rod 102. The pressure gauge 113 is used to detect the pressure generated by the gas passing through the valve body 101. The pressure control cap 114 is used to adjust the pressure of the gas passing through the valve body 101. The flow control valve 115 is used to control the gas flow rate. The flow meter 116 is used to record the metering of gas passing through the flow control valve 115. Then, the gas is discharged through the outlet rod 105. This solves the problem of gas leakage caused by the lack of leak-proof reinforcement in the connection between the inlet rod and the gas supply equipment in existing gas-saving and pressure-reducing valves.
[0030] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.
Claims
1. A carbon dioxide gas meter with a leak-proof structure, comprising a valve body and an inlet rod, wherein the inlet rod is connected to the valve body and located on one side of the valve body; characterized in that, It also includes detection components, The detection assembly includes a pressure detection element, a flow detection element, an air outlet rod, a seal, a sealing sleeve, and two clamping structures; The pressure detection element is disposed on one side of the valve body; the flow detection element is disposed on one side of the valve body; the air outlet rod communicates with the flow detection element and is located on the flow detection element; the sealing element is disposed on one side of the air inlet rod; the sealing sleeve is fixedly connected to the air inlet rod and is located on one side of the air inlet rod; the two clamping structures are respectively located on both sides of the sealing sleeve; the clamping structure includes an operating element, a clamping hoop, and anti-slip teeth, the operating element is disposed on one side of the sealing sleeve; the clamping hoop is fixedly connected to the operating element and is located on one side of the operating element; the anti-slip teeth are fixedly connected to the clamping hoop and are located on one side of the clamping hoop.
2. A carbon dioxide gas meter with a leak-proof structure as described in claim 1, characterized in that, The pressure detection element includes a pressure gauge and a pressure control cap. The pressure gauge is fixedly connected to the valve body and is located on one side of the valve body; the pressure control cap is disposed on one side of the valve body.
3. A carbon dioxide gas meter with a leak-proof structure as described in claim 2, characterized in that, The flow detection device includes a flow control valve and a flow meter. The flow control valve is connected to the valve body and the outlet rod, and is located on one side of the valve body. The flow meter is fixedly connected to the flow control valve and is located on one side of the flow control valve.
4. A carbon dioxide gas meter with a leak-proof structure as described in claim 3, characterized in that, The sealing element includes an expansion ring and a sealing ring. The expansion ring is fixedly connected to the air intake rod and is located on one side of the air intake rod; the sealing ring is fixedly connected to the expansion ring and is located on one side of the expansion ring.
5. A carbon dioxide gas meter with a leak-proof structure as described in claim 4, characterized in that, The operating components include an operating box, an operating screw, a knob, and a guide rod. The operating box is fixedly connected to the sealing sleeve and located on one side of the sealing sleeve. The operating screw is threadedly connected to the operating box and rotatably connected to the clamping hoop, and is located on one side of the operating box. The knob is fixedly connected to the operating screw and located on one side of the operating screw. The guide rod is slidably connected to the operating box and fixedly connected to the clamping hoop, and is located on one side of the operating box.