Valve state indicator and valve

Abstract

The utility model provides a valve state indicator and a valve, and belongs to the technical field of valves, the valve state indicator comprises a shell, the shell comprises an outer shell and an inner shell, the inner shell is located in the outer shell, a closed cavity is formed between the outer shell and the inner shell, a moving cavity with an opening at one end is arranged in the inner shell, and the shell is used for being connected with a valve body; the state indicating unit is arranged in the closed cavity and comprises an indicating part and a magnetic sensitive component, the indicating part is electrically connected with the magnetic sensitive component, and the magnetic sensitive component is used for being electrically connected with the power supply module; the magnetic part is located in the moving cavity, and the magnetic part is used for abutting against the execution rod; the device has the advantages that the closed cavity is formed between the outer shell and the inner shell, the state indicating unit is located in the closed cavity, the magnetic part is located in the moving cavity of the inner shell and abuts against the execution rod, the magnetic part and the state indicating unit are completely separated and not in contact, and the state indicating unit is packaged and protected in the outer shell; then the working position of the magnetic piece is changed according to the operation state of the execution rod, the indicating part is triggered to be switched between the first working state and the second working state, the dynamic sealing mode is changed into the static sealing mode, and the sealing and waterproof effects are improved; due to the fact that the magnetic piece abuts against the execution rod, when the valve state indicator and the valve body are installed, only the shell needs to be connected with the valve body, and installation is very convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves, and particularly relates to a valve state indicator and a valve. Background Art

[0002] In modern industry, the demand for automation is increasing, and more and more valves widely used in industrial production are required to reflect the opening and closing states of the valves so as to be linked to the entire industrial automation control system.

[0003] In this regard, the publication number CN109323041A discloses a two-position feedback device for feedbacking the opening and closing positions of a valve. It uses two microswitches arranged in a housing. The rollers of the two microswitches can respectively contact a feedback cam. The feedback nut at the front end of the feedback rod contacts the piston inside the pneumatic actuator through spring force. When the valve is closed, the feedback rod pops out, and the feedback cam contacts the roller of the lower microswitch. When the valve is opened, the feedback spring is compressed, the feedback rod moves upward, and the feedback cam contacts the roller of the upper microswitch. In this way, the linkage between the two-position feedback device and the valve pneumatic actuator can be realized, so as to give the position state of the valve. However, in the above patent, in order to ensure the contact trigger between the feedback cam and the microswitch, the feedback rod is arranged to extend into the housing, and the feedback rod moves linearly relative to the housing. It is necessary to consider the seal between the feedback rod and the housing. After long-term friction use, the seal between the feedback rod and the housing will be affected, resulting in a weakening of the sealing performance and being unable to adapt to long-term work, which has certain limitations. Summary of the Utility Model

[0004] The purpose of the present utility model is to address the above problems existing in the prior art and propose a valve state indicator that realizes non-contact.

[0005] The purpose of the present utility model can be achieved by the following technical solutions: A valve state indicator, comprising:

[0006] A housing, which includes an outer shell and an inner shell. The inner shell is located inside the outer shell, and a closed cavity is formed between the outer shell and the inner shell. A moving cavity with an opening at one end is arranged inside the inner shell. The housing is used to be connected to the valve body;

[0007] A state indication unit, which is arranged in the closed cavity and includes an indication part and a magnetic sensitive component. The indication part is electrically connected to the magnetic sensitive component, and the magnetic sensitive component is used to be electrically connected to a power supply module;

[0008] A magnetic part, which is located in the moving cavity and is used to abut against the actuator rod;

[0009] Among them, the magnetic member includes a first working position and a second working position. When the magnetic member is in the first working position, the magnetic member triggers the magnetosensitive component to make it energized, and the indicating part is triggered to be in the first working state; when the magnetic member is in the second working position, the magnetic member and the magnetosensitive component are triggered to disconnect, the magnetosensitive component is de-energized, and the indicating part is triggered to be in the second working state.

[0010] In the above-mentioned valve state indicator, all or part of the area of the outer shell is made of a transparent material.

[0011] In the above-mentioned valve state indicator, the indicating part includes a status indicator light fixed in the closed cavity, and the status indicator light is configured to emit different colors of light when the magnetic member is in different working positions.

[0012] In the above-mentioned valve state indicator, a circuit board is fixedly arranged in the closed cavity, and the magnetosensitive component is fixed on the circuit board.

[0013] In the above-mentioned valve state indicator, a mounting part is fixedly arranged in the closed cavity, and the mounting part is fixed to the circuit board.

[0014] In the above-mentioned valve state indicator, an elastic member is arranged in the moving cavity, a first end of the elastic member abuts against the cavity wall of the moving cavity, and a second end of the elastic member abuts against the magnetic member.

[0015] In the above-mentioned valve state indicator, a guiding groove extending linearly along the moving direction of the magnetic member is arranged on the cavity wall of the moving cavity, and a guiding part is arranged on the magnetic member, and the guiding part is located in the guiding groove.

[0016] In the above-mentioned valve state indicator, a connecting member is arranged at the opening of the moving cavity, a first end of the connecting member is connected to the inner shell, a second end of the connecting member is used for connecting to an actuating device, and a through connecting hole is arranged on the connecting member.

[0017] In the above-mentioned valve state indicator, the outer shell includes a first shell and a second shell which are detachably arranged, and the inner shell is integrally arranged with the second shell; or the outer shell includes a shell, and a top cover is detachably arranged on the shell, and the inner shell is integrally arranged with the shell.

[0018] A valve includes the above-mentioned valve state indicator, and further includes a valve body. The valve body includes an actuating device. The actuating device includes an actuating rod. The shell is connected to the actuating device, and the magnetic member abuts against the actuating rod.

[0019] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0020] (1) A closed cavity is formed between the outer shell and the inner shell. The state indicating unit is located in the closed cavity, while the magnetic part is abutted against the actuating rod in the moving cavity of the inner shell. The magnetic part and the state indicating unit are completely separated and do not contact each other. The state indicating unit is encapsulated and protected in the outer shell. Then, according to the operating state of the actuating rod, the magnetic part changes its working position accordingly, and triggers the indicating part to switch between the first working state and the second working state, changing the dynamic sealing method to a static sealing method, thereby enhancing its sealing and waterproof effects;

[0021] (2) Due to the abutting arrangement between the magnetic part and the actuating rod, when installing the valve state indicator on the valve body, it is only necessary to connect the housing to the valve body, which is very convenient for installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a three-dimensional structural schematic diagram of the valve state indicator;

[0023] Figure 2 is Figure 1 the sectional structural schematic diagram of;

[0024] Figure 3 is Figure 1 the internal structural schematic diagram of the outer shell of;

[0025] Figure 4 is a three-dimensional structural schematic diagram of the first housing;

[0026] Figure 5 is a three-dimensional structural schematic diagram of the magnetic part;

[0027] Figure 6 is an exploded structural schematic diagram of another preferred embodiment of the outer shell;

[0028] Figure 7 is a sectional state schematic diagram after the valve and the valve state indicator are connected.

[0029] In the figures, 100, outer shell; 101, inner shell; 102, closed cavity; 103, moving cavity; 104, first housing; 105, second housing; 106, housing; 107, top cover; 108, sealing groove; 109, sealing ring; 110, sealing ring; 200, indicating part; 201, magnetosensitive component; 203, magnetic part; 204, circuit board; 205, mounting plate; 206, elastic part; 207, guiding groove; 208, guiding part; 209, connecting part; 210, connecting hole; 300, valve body; 301, mounting shell; 302, actuating rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The following are specific embodiments of the present utility model and, in conjunction with the accompanying drawings, further describe the technical solutions of the present utility model, but the present utility model is not limited to these embodiments.

[0031] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0032] As Figures 1-6 shown, a valve state indicator includes:

[0033] A housing, which includes an outer shell 100 and an inner shell 101. The inner shell 101 is located inside the outer shell 100, and a closed cavity 102 is formed between the outer shell 100 and the inner shell 101. A moving cavity 103 with an opening at one end is provided inside the inner shell 101. The housing is used to be connected to the valve body 300.

[0034] A state indicating unit, which is arranged in the closed cavity 102 and includes an indicating part 200 and a magnetosensitive component 201. The indicating part 200 is electrically connected to the magnetosensitive component 201, and the magnetosensitive component 201 is used to be electrically connected to the power supply module.

[0035] A magnetic part 203, which is located in the moving cavity 103 and is used to abut against the actuator rod 302.

[0036] Among them, the magnetic part 203 includes a first working position and a second working position. When the magnetic part 203 is in the first working position, the magnetic part 203 triggers the magnetosensitive component 201 to make it energized, and the indicating part 200 is triggered to be in the first working state. When the magnetic part 203 is in the second working position, the magnetic part 203 and the magnetosensitive component 201 trigger to disconnect, the magnetosensitive component 201 is powered off, and the indicating part 200 is triggered to be in the second working state.

[0037] In this embodiment, a closed cavity 102 is formed between the outer shell 100 and the inner shell 101. The state indicating unit is located in the closed cavity 102, while the magnetic member 203 is located in the moving cavity 103 of the inner shell 101 and abuts against the actuating rod 302. The magnetic member 203 is completely separated from the state indicating unit and does not contact each other. The state indicating unit is encapsulated and protected within the outer shell 100. Subsequently, the magnetic member 203 changes its working position according to the operating state of the actuating rod 302, and triggers the indicating portion 200 to switch between the first working state and the second working state, changing the dynamic sealing method to a static sealing method, thereby enhancing its sealing and waterproof effects. In this application, the abutting arrangement between the magnetic member 203 and the actuating rod 302 enables the valve state indicator to be installed with the valve body 300 by simply connecting the housing to the valve body 300, which is very convenient for installation.

[0038] It is worth mentioning that the first working state and the second working state are respectively configured to display the open and closed states of the valve.

[0039] Preferably, in order to facilitate the intuitive observation of the state switching of the indicating portion 200, all or part of the area of the outer shell 100 is made of a transparent material.

[0040] Specifically, the indicating portion 200 includes a status indicator light fixed in the closed cavity 102. The status indicator light is configured to emit different colors of light when the magnetic member 203 is in different working positions.

[0041] As one of the preferred solutions, the magnetic member 203 includes a magnet, and the magneto-sensitive component 201 includes a magnetic reed switch. When the valve is closed, the magnetic member 203 is located at the first working position. After the magnetic member 203 triggers the magnetic reed switch to be energized, a trigger signal is formed. After the control module receives the trigger signal, it controls the status indicator light to emit a red light. When the valve is open, the magnetic member 203 is located at the second working position. After the power connection between the magnetic member 203 and the magnetic reed switch is disconnected, a trigger signal is formed. After the control module receives the trigger signal, it controls the status indicator light to emit a green light.

[0042] Preferably, a circuit board 204 is fixedly arranged in the closed cavity 102, and the magneto-sensitive component 201 is fixed on the circuit board 204.

[0043] In this embodiment, in order to enable the magneto-sensitive component 201 to be fixed in the closed cavity 102 and maintain stability, a circuit board 204 is arranged in the closed cavity 102, and the magneto-sensitive component 201 is fixed on the circuit board 204. This not only provides a position for the installation of the magneto-sensitive component 201 but also electrically connects the magneto-sensitive component 201 to other devices.

[0044] Further preferably, an installation portion is fixedly arranged in the closed cavity 102, and the installation portion is fixed to the circuit board 204.

[0045] In this embodiment, two mounting plates 205 are fixedly arranged in the closed cavity 102, and the two mounting plates 205 are respectively threadedly connected to the circuit board 204 by screws.

[0046] It is worth mentioning that the status indicator light is fixed to the housing 100 and is located in the transparent area of the housing 100.

[0047] Further preferably, an elastic member 206 is arranged in the moving cavity 103. The first end of the elastic member 206 abuts against the cavity wall of the moving cavity 103, and the second end of the elastic member 206 abuts against the magnetic member 203.

[0048] In this embodiment, when the actuating rod 302 extends, it will push against the magnetic member 203 to make it slide accordingly. When the actuating rod 302 retracts, it is necessary to ensure that the magnetic member 203 will also reset accordingly. When the moving cavity 103 is in a vertical state, the magnetic member 203 can reset under the action of gravity; and in order to adapt to the use of the valve status indicator in different states, an elastic member 206 is arranged in the moving cavity 103, so that no matter in what angular state, the magnetic member 203 can reset under the elastic force of the elastic member 206.

[0049] It is worth mentioning that a connecting groove is arranged on the magnetic member 203, and the second end of the elastic member 206 extends into the connecting groove.

[0050] Preferably, a guide groove 207 extending linearly along the moving direction of the magnetic member 203 is arranged on the cavity wall of the moving cavity 103, and a guide portion 208 is arranged on the magnetic member 203, and the guide portion 208 is located in the guide groove 207.

[0051] In this embodiment, in order to prevent the magnetic member 203 from rotating during the movement of the magnetic member 203, the guide portion 208 and the guide groove 207 are provided to limit its rotation, so that it can only move along a straight line direction.

[0052] Further preferably, a connecting member 209 is arranged at the opening of the moving cavity 103. The first end of the connecting member 209 is connected to the inner housing 101, and the second end of the connecting member 209 is used to be connected to the actuating device. A through connecting hole 210 is arranged on the connecting member 209.

[0053] In this embodiment, the first end of the connecting member 209 extends into the inner housing 101 and is detachably connected to the inner housing 101. Specifically, various connection methods such as threaded connection or pin connection can be used; an external thread is arranged on the second end of the connecting member 209 and is threadedly connected to the mounting shell 301 of the actuating device, and a through connecting hole 210 is arranged in the connecting member 209, so that the actuating rod 302 can pass through the connecting hole 210 and abut against the magnetic member 203.

[0054] Preferably, the outer shell 100 includes a first shell 104 and a second shell 105 which are detachably arranged, and the inner shell 101 is integrally arranged with the second shell 105; or the outer shell 100 includes a shell 106, and a top cover 107 is detachably arranged on the shell 106, and the inner shell 101 is integrally arranged with the shell 106.

[0055] In this embodiment, the state indicating unit is located in the closed cavity 102. For the convenience of its assembly, as Figure 1 shown, in one preferred solution, the outer shell 100 is provided to include a first shell 104 and a second shell 105 which are detachably arranged, the inner shell 101 is integrally arranged with the second shell 105, a sealing groove 108 is arranged on the second shell 105, a sealing ring 110 is arranged in the sealing groove 108, and a sealing ring 109 is arranged on the first shell 104. When the first shell 104 and the second shell 105 are fixed, the sealing ring 109 extends into the sealing groove 108 to squeeze the sealing ring 110; as Figure 6 shown, in another preferred solution, the outer shell 100 includes a shell 106, the inner shell 101 is integrally arranged with the shell 106, a top cover 107 is detachably arranged on the shell 106, and the sealing groove 108 is located on the shell. A sealing ring 109 is arranged on the top cover 107. When the top cover 107 and the shell are fixed, the top cover 107 extends into the sealing groove 108 to squeeze the sealing ring 110.

[0056] A valve includes the above-mentioned valve state indicator, and further includes a valve body 300. The valve body 300 includes an actuating device. The actuating device includes an actuating rod 302. The shell is connected to the actuating device, and the magnetic member 203 abuts against the actuating rod 302.

[0057] As Figure 7 shown, an actuating rod 302 that can reciprocate linearly is arranged in the mounting shell 301 of the actuating device. The actuating rod 302 passes through the connection hole 210 and abuts against the magnetic member 203. The second end of the connecting member 209 is screwed to the mounting shell 301 to achieve fixation.

[0058] It should be noted that in the present utility model, descriptions such as "first", "second", and "one" are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined. Terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0059] In addition, the technical solutions between various embodiments of the present utility model can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0060] The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the art of the present utility model can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

Claims

1. A valve status indicator, characterized in that: include: A housing, comprising an outer housing and an inner housing, wherein the inner housing is located inside the outer housing, and a closed cavity is formed between the outer housing and the inner housing, and a moving cavity with an opening at one end is provided inside the inner housing, and the housing is used to be connected to the valve body; A status indication unit, which is arranged in the closed cavity, comprises an indication part and a magnetic sensitive component, the indication part is electrically connected to the magnetic sensitive component, and the magnetic sensitive component is used to be electrically connected to the power supply module; A magnetic member, which is located in the moving cavity and is used to abut against the actuator rod; Wherein, the magnetic part includes a first working position and a second working position. When the magnetic part is in the first working position, the magnetic part triggers the magnetic sensitive component to power on, and the indicating part is triggered to the first working state; when the magnetic part is in the second working position, the magnetic part and the magnetic sensitive component are triggered to disconnect, the magnetic sensitive component is powered off, and the indicating part is triggered to the second working state.

2. A valve status indicator according to claim 1, characterized in that: The entire or a part of the area of ​​the shell is made of transparent material.

3. A valve status indicator according to claim 2, characterized in that: The schematic portion includes a status indicator light fixed in the closed cavity, and the status indicator light is configured to emit light of different colors when the magnetic member is in different working positions.

4. A valve status indicator according to claim 1, characterized in that: A circuit board is fixedly arranged in the closed cavity, and the magnetic sensitive component is fixed on the circuit board.

5. A valve status indicator according to claim 4, characterized in that: A mounting portion is fixedly arranged in the closed cavity, and the mounting portion is fixed to the circuit board.

6. A valve status indicator according to claim 1, characterized in that: An elastic member is arranged in the movable cavity, a first end of the elastic member abuts against a cavity wall of the movable cavity, and a second end of the elastic member abuts against the magnetic member.

7. A valve status indicator according to claim 1 or 6, characterized in that: A guide groove extending linearly along the moving direction of the magnetic member is arranged on the cavity wall of the moving cavity, and a guide portion is arranged on the magnetic member, and the guide portion is located in the guide groove.

8. A valve status indicator according to claim 1, characterized in that: A connecting piece is provided at the opening of the moving cavity, a first end of the connecting piece is connected to the inner shell, a second end of the connecting piece is used to be connected to the execution device, and a through connecting hole is provided on the connecting piece.

9. A valve status indicator according to claim 1, characterized in that: The outer shell includes a first shell and a second shell that are detachably provided, and the inner shell is integrally provided with the second shell; or the outer shell includes a shell, a top cover is detachably provided on the shell, and the inner shell is integrally provided with the shell.

10. A valve, characterized in that: It comprises the valve status indicator as described in any one of claims 1 to 9, and also comprises a valve body, the valve body comprises an actuator, the actuator comprises an actuator rod, the shell is connected to the actuator, and the magnetic member abuts against the actuator rod.

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