Self-locking mechanism of electric gas stop valve

Abstract

The utility model discloses an electric gas cut-off valve self-locking mechanism which comprises a valve body and a protection mechanism, a valve element is arranged on the inner wall of the valve body, connecting flanges are welded to the two ends of the outer wall of the valve body, series connection rods are installed on the inner walls of the connecting flanges, connecting pipes are arranged on the outer walls of the connecting flanges, and sealing rings are arranged on the outer walls of the connecting pipes in a sleeved mode. A valve seat is welded to the top end of the valve body, an adjuster is arranged at the top end of the valve seat, a valve rod is connected to the bottom end of the adjuster, a valve ball is connected to the bottom end of the valve rod, and a control panel is arranged at the top end of the adjuster. According to the self-locking mechanism of the electric gas cut-off valve, through the arranged protection mechanism, when the self-locking mechanism is used, a rotating shaft in the protection mechanism drives a protection cover to cover the exterior of a setting button of a control panel, the situation that the setting button is affected by external force, and consequently set automatic parameters are changed can be avoided, and meanwhile the waterproof effect can be provided for the setting button; water is prevented from entering the button to cause button failure.

Description

Technical Field

[0001] This utility model relates to the technical field of gas shut-off valves, specifically to a self-locking mechanism for an electric gas shut-off valve. Background Technology

[0002] Shut-off valves are a type of actuator in automation systems. They consist of a multi-spring pneumatic diaphragm actuator or a floating piston actuator and a regulating valve. Shut-off valves have a wide range of applications, including shutting off gas, combustion air, cold air, and flue gas. Therefore, there is an urgent need for self-locking mechanisms in electric gas shut-off valves.

[0003] The self-locking mechanism of the currently used electric gas shut-off valve has no external protective measures on the control panel, which can easily lead to accidental button presses, thus affecting the set automation parameters. In addition, the shut-off valve is not easy to install and connect with gas pipelines. Utility Model Content

[0004] The purpose of this utility model is to provide a self-locking mechanism for an electric gas shut-off valve, in order to solve the problems mentioned in the background art, such as the lack of external protection measures on the control panel of the currently used electric gas shut-off valve, which easily leads to accidental button presses, thereby affecting the set automation parameters, and the inconvenience of splicing and installing the shut-off valve with the gas pipeline.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a self-locking mechanism for an electric gas shut-off valve, comprising a valve body and a protective mechanism. The inner wall of the valve body is provided with a valve core, and both ends of the outer wall of the valve body are welded with connecting flanges. A connecting rod is installed on the inner wall of the connecting flange, and a connecting pipe is provided on the outer wall of the connecting flange. A sealing ring is fitted onto the outer wall of the connecting pipe. A valve seat is welded to the top of the valve body, and an adjuster is provided at the top of the valve seat. A valve stem is connected to the bottom of the adjuster, and a valve ball is connected to the bottom of the valve stem. A control panel is provided at the top of the adjuster, and a display screen is embedded at the top of the control panel's surface. A setting button is provided at the bottom of the control panel's surface. The protective mechanism is located at the bottom of the control panel's surface. The protective mechanism includes a rotating shaft, a sleeve, and a protective cover. The rotating shaft is located on the surface of the control panel, and a sleeve is fitted onto the outer wall of the rotating shaft. The bottom of the sleeve is connected to the protective cover.

[0006] Preferably, the tandem rod and the connecting flange are connected by threads, and both the outer wall of the tandem rod and the inner wall of the connecting flange are threaded.

[0007] Preferably, the inner wall of the sealing ring is in close contact with the outer wall of the connecting pipe, and the inner wall size of the sealing ring matches the outer wall size of the connecting pipe.

[0008] Preferably, the protective cover forms a rotating structure with the control panel via a rotating shaft, and the length of the rotating shaft is greater than the length of the protective cover.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] 1. The self-locking mechanism of this electric gas shut-off valve, through the setting of a protective mechanism, allows the protective cover to be driven by the rotating shaft in the protective mechanism to cover the outside of the setting button on the control panel during use. This can prevent the setting button from being affected by external forces and thus changing the set automation parameters. At the same time, it can also provide a waterproof effect to the setting button, preventing water from entering the setting button and causing it to malfunction.

[0011] 2. The self-locking mechanism of this electric gas shut-off valve, through the setting of a series rod and a sealing ring, facilitates the splicing of the gas pipeline with the shut-off valve and the gas pipeline through the connecting pipes at both ends of the valve body. The connecting flange is fixed to the gas pipeline by the series rod, which is convenient for splicing. In addition, the sealing ring on the outside of the connecting pipe can provide a sealing effect at the splice, preventing gas from leaking from the splice of the pipeline. Attached Figure Description

[0012] Figure 1 This is a front sectional view of the present invention;

[0013] Figure 2 This is a drawing of the protective mechanism parts of this utility model;

[0014] Figure 3 This utility model Figure 1 Enlarged structural diagram of section A in the middle.

[0015] In the diagram: 1. Valve body; 2. Valve core; 3. Connecting flange; 4. Connecting rod; 5. Connecting pipe; 6. Sealing ring; 7. Valve seat; 8. Regulator; 9. Valve stem; 10. Valve ball; 11. Control panel; 12. Display screen; 13. Setting button; 14. Protective mechanism; 1401. Rotating shaft; 1402. Sleeve; 1403. Protective cover. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-3This utility model provides a technical solution: a self-locking mechanism for an electric gas shut-off valve, including a valve body 1 and a protective mechanism 14. A valve core 2 is provided on the inner wall of the valve body 1, and connecting flanges 3 are welded to both ends of the outer wall of the valve body 1. A connecting rod 4 is installed on the inner wall of the connecting flange 3, and the connecting rod 4 is threaded to the connecting flange 3. Both the outer wall of the connecting rod 4 and the inner wall of the connecting flange 3 are threaded. A connecting pipe 5 is provided on the outer wall of the connecting pipe 5, and a sealing ring 6 is fitted onto the outer wall of the connecting pipe 5. The inner wall of the sealing ring 6 is tightly fitted to the outer wall of the connecting pipe 5, and the inner wall size of the sealing ring 6 matches the outer wall size of the connecting pipe 5. Through the connecting rod 4 and the sealing ring 6, it is convenient to connect the shut-off valve to the gas pipeline by connecting the gas pipeline through the connecting pipes 5 at both ends of the valve body 1, and to fix the connecting flange 3 to the gas pipeline through the connecting rod 4. This facilitates easy connection, and the sealing ring 6 outside the connecting pipe 5 provides a sealing effect at the joint, preventing gas leakage from the pipeline joint.

[0018] A valve seat 7 is welded to the top of the valve body 1. A regulator 8 is installed on the top of the valve seat 7, and a valve stem 9 is connected to the bottom of the regulator 8. A valve ball 10 is connected to the bottom of the valve stem 9. A control panel 11 is installed on the top of the regulator 8, and a display screen 12 is embedded on the top of the surface of the control panel 11. A setting button 13 is installed on the bottom of the surface of the control panel 11. A protective mechanism 14 is installed on the bottom of the surface of the control panel 11. The protective mechanism 14 includes a rotating shaft 1401, a sleeve 1402, and a protective cover 1403. The rotating shaft 1401 is installed on the surface of the control panel 11, and the sleeve 1402 is fitted on the outer wall of the rotating shaft 1401. Furthermore, a protective cover 1403 is connected to the bottom end of the sleeve 1402. The protective cover 1403 forms a rotating structure with the control panel 11 through a rotating shaft 1401. The length of the rotating shaft 1401 is greater than the length of the protective cover 1403. Through the protective mechanism 14, it is convenient to use the protective cover 1403 to cover the setting button 13 of the control panel 11 through the rotating shaft 1401 in the protective mechanism 14. This can prevent the setting button 13 from being affected by external forces and causing the set automation parameters to change. At the same time, it can also provide a waterproof effect for the setting button 13, preventing water from entering the setting button 13 and causing the button to malfunction.

[0019] Working principle: When installing the shut-off valve and the gas pipeline, the gas pipeline is first connected through the connecting pipes 5 at both ends of the valve body 1, and the connecting flange 3 is fixed to the gas pipeline through the connecting rod 4. The connection is convenient, and the sealing ring 6 on the outside of the connecting pipe 5 can provide a sealing effect at the joint to prevent gas leakage from the pipeline joint. Then, the automatic parameters of the shut-off valve are set through the setting button 13 on the control panel 11, and the protective cover 1403 is driven by the rotating shaft 1401 in the protective mechanism 14 to cover the setting button 13 on the control panel 11. This can prevent the setting button 13 from being affected by external forces and thus change the set automatic parameters. At the same time, it can also provide a waterproof effect to the setting button 13 to prevent water from entering the setting button 13 and causing the button to malfunction. When a certain amount of gas is delivered through the shut-off valve, the regulator 8 drives the valve stem 9, which in turn drives the valve ball 10 to rotate, thereby controlling the gas flow. This completes the operation process of the electric gas shut-off valve self-locking mechanism.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-locking mechanism for an electric gas shut-off valve, characterized in that, The valve body (1) includes a valve body (1) and a protective mechanism (14). The inner wall of the valve body (1) is provided with a valve core (2), and both ends of the outer wall of the valve body (1) are welded with connecting flanges (3). The inner wall of the connecting flanges (3) is equipped with a connecting rod (4), and the outer wall of the connecting flanges (3) is provided with a connecting pipe (5). The outer wall of the connecting pipe (5) is fitted with a sealing ring (6), and the top of the valve body (1) is welded with a valve seat (7). The top of the valve seat (7) is provided with a regulator (8), and the bottom end of the regulator (8) is connected to a valve stem (9). The bottom end of the valve stem (9) is connected to a valve ball (10). A control panel (11) is provided at the top of the control panel (11), and a display screen (12) is embedded at the top of the surface of the control panel (11). A setting button (13) is provided at the bottom of the surface of the control panel (11). A protective mechanism (14) is provided at the bottom of the surface of the control panel (11). The protective mechanism (14) includes a rotating shaft (1401), a sleeve (1402) and a protective cover (1403). The rotating shaft (1401) is provided on the surface of the control panel (11). The outer wall of the rotating shaft (1401) is fitted with a sleeve (1402), and the bottom end of the sleeve (1402) is connected to the protective cover (1403).

2. The self-locking mechanism of the electric gas shut-off valve according to claim 1, characterized in that: The connecting rod (4) and the connecting flange (3) are connected by threads, and the outer wall of the connecting rod (4) and the inner wall of the connecting flange (3) are both threaded.

3. The self-locking mechanism of the electric gas shut-off valve according to claim 1, characterized in that: The inner wall of the sealing ring (6) is tightly fitted to the outer wall of the connecting pipe (5), and the inner wall size of the sealing ring (6) matches the outer wall size of the connecting pipe (5).

4. The self-locking mechanism of the electric gas shut-off valve according to claim 1, characterized in that: The protective cover (1403) forms a rotating structure with the control panel (11) through a rotating shaft (1401), and the length of the rotating shaft (1401) is greater than the length of the protective cover (1403).

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