A side plate vent valve with opening and closing monitoring function

Abstract

This utility model specifically relates to a side plate vent valve with an opening / closing monitoring function, including a valve body, a valve stem, a piston, and a sealing plate. The sealing plate, driven by the valve stem, has a closed state (blocking the control port) and an open state (moving away from the control port). It also includes an opening / closing monitoring component and a control unit. The opening / closing monitoring component is located at the end of the central column away from the control port. The component detects the position of the valve stem to obtain the state of the sealing plate and feeds it back to the control unit. Workers can confirm the opening / closing status of the side plate vent valve based on the sealing plate state fed back to the control unit by the opening / closing monitoring component, greatly ensuring operational safety.

Description

Technical Field

[0001] This utility model relates to the technical field of side plate vent valves, specifically to a side plate vent valve with opening and closing monitoring function. Background Technology

[0002] The side plate vent valve, also known as the oil and gas recovery pipeline control valve, is installed at the rear end of the oil and gas recovery pipeline on the upper part of the tank truck. It is used to connect and block the air inside and outside the tank truck. The valve is normally open to maintain the air pressure balance inside and outside the tank truck. When closed, it seals the oil and gas recovery pipeline to recover oil and gas.

[0003] The existing side plate vent valves lack opening and closing monitoring functions, making it impossible for staff to accurately know the opening and closing status of the side plate vent valves, which can easily lead to accidents. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings and deficiencies of the existing technology and to provide a side plate vent valve with opening and closing monitoring function.

[0005] The technical solution adopted by this utility model is as follows: A side plate vent valve with opening and closing monitoring function includes a valve body, a valve stem, a piston, and a sealing plate. The valve body is provided with a first vent for communicating with the outside atmosphere, a gas supply pipe for connecting to a gas source, and a control port for communicating with the inner cavity of a container. The valve body is provided with a central column, which is hollow and divides the inner cavity of the valve body into a valve core mounting cavity and a medium cavity. The end of the central column near the control port is provided with a through hole for the valve stem to pass through. The piston is disposed in the valve core mounting cavity and divides the valve core mounting cavity into an atmospheric cavity and a control gas cavity. The atmospheric cavity is connected to the outside. The gas supply pipe is connected to the central column and communicates with the control gas cavity. One end of the valve stem is fixedly connected to the piston, and the other end passes through the through hole and the control port and connects to the sealing plate. The sealing plate has a closed state (blocking the control port) and an open state (moving away from the control port) under the action of the valve stem.

[0006] It also includes an opening and closing monitoring component and a control unit. The opening and closing monitoring component is located at the end of the central column away from the control port. The opening and closing monitoring component obtains the state of the sealing plate by detecting the position of the valve stem and feeds it back to the control unit.

[0007] Preferably, the central column is integrally formed in the valve body, and the end of the central column away from the control port is connected to the outer wall of the valve body and has an installation port that communicates with the outside. The opening and closing monitoring component is fixed at the installation port.

[0008] Preferably, the opening / closing monitoring component includes a housing assembly and a monitoring element disposed within the housing assembly.

[0009] The outer periphery of the outer casing assembly is provided with a mounting protrusion ring, and the lower end of the outer casing assembly passes through the valve core mounting cavity from the mounting port and forms a fixed fit with the valve body.

[0010] Preferably, the lower end face of the mounting ring abuts against the upper end face of the valve body and is fixedly engaged by a threaded part passing through both.

[0011] Preferably, the atmospheric cavity includes a first inner cavity and a second inner cavity from top to bottom. The aperture of the first inner cavity is larger than that of the second inner cavity and forms a first limiting step with it. The lower end of the outer shell assembly is connected to the first inner cavity and its lower end face abuts against the first limiting step.

[0012] Preferably, the outer casing assembly includes an upper casing and a lower casing arranged vertically with their openings facing each other. The lower casing is located within a second inner cavity. The mounting protrusion is connected to the outer periphery of the upper casing. The lower end of the upper casing is located within the second inner cavity and abuts against the upper end of the lower casing.

[0013] A limiting ring groove is provided on the inner circumference of the lower end of the upper housing and / or the inner circumference of the upper end of the lower housing, and the outer circumference of the monitoring element is located within the limiting ring groove.

[0014] Preferably, a first sealing groove is provided on the outer periphery of the lower housing, and a first sealing element is provided in the first sealing groove to form a seal between the outer wall of the lower housing and the inner wall of the first inner cavity.

[0015] Preferably, the upper end face of the lower housing is provided with a second sealing groove, and a second sealing element is provided in the second sealing groove to form a seal between the upper end face of the lower housing and the lower end face of the upper housing.

[0016] Preferably, the central column is fitted with a spring, and the two ends of the spring abut against the outer shell assembly and the piston, respectively.

[0017] Preferably, the sidewall of the central column is provided with a vent hole connecting the atmospheric cavity and the medium cavity.

[0018] The beneficial effects of this utility model are as follows: the staff can confirm the opening and closing status of the side plate vent valve based on the sealing plate status fed back to the control unit by the opening and closing monitoring component, which greatly ensures the safety of the operation. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of this utility model.

[0020] Figure 1This is a front view structural diagram of an embodiment of the present utility model;

[0021] Figure 2 This is a front sectional view of an embodiment of the present utility model;

[0022] Figure 3 for Figure 2 Enlarged view of the structure at point A in the middle;

[0023] In the diagram, 1 is the valve body; 2 is the valve stem; 3 is the piston; 4 is the sealing plate; 6 is the spring; 11 is the central column; 12 is the valve core mounting cavity; 13 is the medium cavity; 51 is the monitoring element; 52 is the upper housing; 53 is the lower housing; 54 is the limiting ring groove; 101 is the first vent; 102 is the gas pipeline; 103 is the control port; 111 is the mounting port; 112 is the through hole; 113 is the vent hole; 121 is the large air cavity; 122 is the control air cavity; 521 is the mounting protrusion ring; 531 is the first sealing groove; 532 is the first seal; 533 is the second sealing groove; 534 is the second seal; 1211 is the first inner cavity; 1212 is the second inner cavity; 1213 is the first limiting step. Detailed Implementation

[0024] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0025] It should be noted that all uses of "first" and "second" in the embodiments of this utility model are for the purpose of distinguishing two entities or parameters with the same name but different names. It is clear that "first" and "second" are only for the convenience of expression and should not be construed as limiting the embodiments of this utility model. Subsequent embodiments will not explain this in detail.

[0026] The directional and positional terms used in this utility model, such as "up," "down," "front," "back," "left," "right," "inner," "outer," "top," "bottom," and "side," are merely for reference to the accompanying drawings. Therefore, the directional and positional terms used are for the purpose of explaining and understanding this utility model, and not for limiting the scope of protection of this utility model.

[0027] like Figures 1 to 3As shown in the illustration, a side plate vent valve with opening and closing monitoring function is provided in an embodiment of this utility model. It includes a valve body 1, a valve stem 2, a piston 3, and a sealing plate 4. The valve body 1 has a first vent 101 for communicating with the outside atmosphere, a gas supply pipe 102 for connecting to a gas source, and a control port 103 for communicating with the inner cavity of a container. A central column 11 is provided inside the valve body 1. The hollow central column 11 divides the inner cavity of the valve body 1 into a valve core mounting cavity 12 and a medium cavity 13. A through hole 112 for the valve stem 2 to pass through is provided at one end of the central column 11 near the control port 103. The piston 3 is disposed in the valve core mounting cavity 12 and divides the valve core mounting cavity 12 into an atmospheric cavity 121 and a control gas cavity 122. The atmospheric cavity 121 communicates with the outside. The gas supply pipe 102 is connected to the central column 11 and communicates with the control gas cavity 122. One end of the valve stem 2 is fixedly connected to the piston 3, and the other end passes through the through hole 112 and the control port 103 to connect to the sealing plate 4. The sealing plate 4 has a closed state (blocking the control port 103) and an open state (moving away from the control port 103) driven by the valve stem 2.

[0028] It also includes an opening and closing monitoring component and a control unit. The opening and closing monitoring component is located at the end of the central column 11 away from the control port 103. The opening and closing monitoring component obtains the state of the sealing plate 4 by detecting the position of the valve stem 2 and feeds it back to the control unit.

[0029] This setup allows operators to confirm the opening and closing status of the side plate vent valve based on the sealing plate status fed back to the control unit by the opening and closing monitoring component, greatly ensuring operational safety. The opening and closing monitoring component is specifically a position sensor, which can be configured as needed. In this embodiment, an electromagnetic induction position sensor is used, with a magnetic element correspondingly installed at the end of the valve stem near the opening and closing monitoring component.

[0030] The central column 11 is integrally formed inside the valve body 1. The end of the central column 11 away from the control port 103 is connected to the outer wall of the valve body 1 and has an installation port 111 that communicates with the outside. The opening and closing monitoring component is fixed at the installation port 111.

[0031] This setting improves the ease of installation for the start / stop monitoring component.

[0032] The opening / closing monitoring component includes a housing assembly and a monitoring element 51 disposed within the housing assembly.

[0033] The outer periphery of the outer casing assembly is provided with a mounting protrusion ring 521, and the lower end of the outer casing assembly passes through the mounting port 111 into the valve core mounting cavity 12 and forms a fixed fit with the valve body 1.

[0034] The housing assembly and the valve body can be fixedly fitted together by having an internal thread section on the inner circumference of the upper end of the valve core mounting cavity and an external thread section on the outer circumference of the lower end of the housing assembly, with the two threadedly engaged. Alternatively, threaded holes can be machined on the mounting ring and the valve body, and the two can be fixedly connected by threaded components. In this embodiment, the latter method is specifically adopted.

[0035] The lower end face of the mounting convex ring 521 abuts against the upper end face of the valve body 1 and is fixedly engaged by a threaded part passing through both.

[0036] This design facilitates processing and ensures a stable connection between the opening / closing monitoring component and the valve body after assembly.

[0037] The atmospheric cavity 121 includes a first inner cavity 1211 and a second inner cavity 1212 from top to bottom. The aperture of the first inner cavity 1211 is larger than that of the second inner cavity 1212 and forms a first limiting step 1213 therewith. The lower end of the outer shell assembly is connected to the first inner cavity 1211 and its lower end face abuts against the first limiting step 1213.

[0038] This setting further improves the connection stability between the opening / closing monitoring component and the valve body.

[0039] The outer casing assembly includes an upper casing 52 and a lower casing 53, which are arranged vertically and have opposite openings. The lower casing 53 is located within a second inner cavity 1212. The mounting protrusion 521 is connected to the outer periphery of the upper casing 52. The lower end of the upper casing 52 is located within the second inner cavity 1212 and abuts against the upper end of the lower casing 53.

[0040] A limiting annular groove 54 is provided on the inner circumference of the lower end of the upper housing 52 and / or the inner circumference of the upper end of the lower housing 53, and the outer circumference of the monitoring element 51 is located within the limiting annular groove 54.

[0041] This design improves the ease of installation and removal of the opening and closing monitoring component. During installation, the lower housing is first inserted into the second inner cavity, then the monitoring element is placed, and finally the upper housing is installed. When maintenance is required, the upper housing can be opened to check whether the monitoring element is abnormal.

[0042] The lower housing 53 is provided with a first sealing groove 531 on its outer periphery, and a first sealing element 532 is provided in the first sealing groove 531 to form a seal between the outer wall of the lower housing 53 and the inner wall of the first inner cavity 1211.

[0043] This design ensures a tight seal between the lower housing and the first inner cavity.

[0044] The upper end face of the lower housing 53 is provided with a second sealing groove 533, and a second sealing element 534 is provided in the second sealing groove 533 to form a seal between the upper end face of the lower housing 53 and the lower end face of the upper housing 52.

[0045] This design ensures a tight seal between the upper and lower housings.

[0046] The central column 11 is fitted with a spring 6, and the two ends of the spring 6 abut against the outer shell assembly and the piston 3, respectively.

[0047] With this setting, the spring can assist the piston in returning to its original position.

[0048] The side wall of the central column 11 is provided with a vent 113 that connects the atmospheric cavity 121 and the medium cavity 13.

[0049] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A side plate vent valve with opening and closing monitoring function, comprising a valve body (1), a valve stem (2), a piston (3), and a sealing plate (4), wherein the valve body (1) is provided with a first vent (101) for communicating with the outside atmosphere, a gas supply pipe (102) for connecting to a gas source, and a control port (103) for communicating with the inner cavity of a container, wherein the valve body (1) is provided with a central column (11), the central column (11) being hollow and dividing the inner cavity of the valve body (1) into a valve core mounting area. The valve core is divided into a valve core mounting cavity (12) and a medium cavity (13). The central column (11) has a through hole (112) at one end near the control port (103) for the valve stem (2) to pass through. The piston (3) is located in the valve core mounting cavity (12) and divides the valve core mounting cavity (12) into an atmospheric cavity (121) and a control gas cavity (122). The atmospheric cavity (121) is connected to the outside. The gas supply pipe (102) is connected to the central column (11) and communicates with the control gas cavity (122). One end of the valve stem (2) is fixedly connected to the piston (3), and the other end passes through the through hole (112) and the control port (103) to connect to the sealing plate (4). The sealing plate (4) has a closed state that blocks the control port (103) and an open state that moves away from the control port (103) under the action of the valve stem (2). The valve core is characterized by: It also includes an opening and closing monitoring component and a control unit. The opening and closing monitoring component is located at the end of the central column (11) away from the control port (103). The opening and closing monitoring component obtains the status of the sealing plate (4) by detecting the position of the valve stem (2) and feeds it back to the control unit.

2. The edge strip breather valve with opening and closing monitoring function according to claim 1, characterized in that: The central column (11) is integrally formed inside the valve body (1). The end of the central column (11) away from the control port (103) is connected to the outer wall of the valve body (1) and has an installation port (111) that connects to the outside. The opening and closing monitoring component is fixed at the installation port (111).

3. A side plate vent valve with opening and closing monitoring function according to claim 2, characterized in that: The opening and closing monitoring component includes a housing assembly and a monitoring element (51) disposed within the housing assembly. The outer periphery of the outer shell assembly is provided with an installation protrusion ring (521), and the lower end of the outer shell assembly passes through the valve core mounting cavity (12) from the mounting port (111) and forms a fixed fit with the valve body (1).

4. A side plate vent valve with opening and closing monitoring function according to claim 3, characterized in that: The lower end face of the mounting convex ring (521) abuts against the upper end face of the valve body (1) and is fixedly engaged by a threaded part passing through both.

5. A side plate vent valve with opening and closing monitoring function according to claim 3, characterized in that: The atmospheric cavity (121) includes a first inner cavity (1211) and a second inner cavity (1212) from top to bottom. The aperture of the first inner cavity (1211) is larger than that of the second inner cavity (1212) and forms a first limiting step (1213) with it. The lower end of the outer shell assembly is connected to the first inner cavity (1211) and its lower end face abuts against the first limiting step (1213).

6. A side plate vent valve with opening and closing monitoring function according to claim 5, characterized in that: The outer casing assembly includes an upper casing (52) and a lower casing (53) arranged vertically with their openings facing each other. The lower casing (53) is located within a second inner cavity (1212). The mounting protrusion (521) is connected to the outer periphery of the upper casing (52). The lower end of the upper casing (52) is located within the second inner cavity (1212) and abuts against the upper end of the lower casing (53). The lower inner circumference of the upper housing (52) and / or the upper inner circumference of the lower housing (53) are provided with a limiting ring groove (54), and the outer circumference of the monitoring element (51) is located in the limiting ring groove (54).

7. A side plate vent valve with opening and closing monitoring function according to claim 6, characterized in that: The lower housing (53) is provided with a first sealing groove (531) on its outer periphery, and a first sealing element (532) is provided in the first sealing groove (531) to form a seal between the outer wall of the lower housing (53) and the inner wall of the first inner cavity (1211).

8. A side plate vent valve with opening and closing monitoring function according to claim 6, characterized in that: The upper end face of the lower housing (53) is provided with a second sealing groove (533), and a second sealing element (534) is provided in the second sealing groove (533) to form a seal between the upper end face of the lower housing (53) and the lower end face of the upper housing (52).

9. A side plate vent valve with opening and closing monitoring function according to claim 3, characterized in that: The central column (11) is fitted with a spring (6), and the two ends of the spring (6) abut against the outer shell assembly and the piston (3) respectively.

10. A side plate vent valve with opening and closing monitoring function according to any one of claims 1-9, characterized in that: The side wall of the central column (11) is provided with a vent (113) that connects the atmospheric cavity (121) and the medium cavity (13).

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