CN216618735U - Fire-fighting electromagnetic selector valve capable of preventing resetting after opening - Google Patents
Fire-fighting electromagnetic selector valve capable of preventing resetting after opening Download PDFInfo
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- CN216618735U CN216618735U CN202220191887.7U CN202220191887U CN216618735U CN 216618735 U CN216618735 U CN 216618735U CN 202220191887 U CN202220191887 U CN 202220191887U CN 216618735 U CN216618735 U CN 216618735U
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Abstract
The utility model relates to a fire-fighting electromagnetic selector valve capable of preventing resetting after being opened, which comprises a valve seat and a control assembly arranged above the valve seat, wherein an inlet hole and an outlet hole are respectively formed in the valve seat; the control assembly comprises a sealing cavity, a piston is arranged in the sealing cavity, and the position of the piston corresponds to the communication position of the inlet hole and the outlet hole; the control assembly further comprises a manual switch mechanism and an automatic switch mechanism, and the manual switch mechanism and the automatic switch mechanism are respectively used for controlling the position of the piston; the control assembly further comprises a resetting-preventing mechanism, the resetting-preventing mechanism comprises a shell and a resetting-preventing rod arranged in the shell, one end of the resetting-preventing rod is in contact with the shell through a resetting-preventing spring, and the other end of the resetting-preventing rod corresponds to the side face of the piston. The fire-fighting electromagnetic selector valve provided by the utility model can be opened electrically and manually, and can realize the anti-resetting function through the anti-resetting mechanism, so that the fire-fighting electromagnetic selector valve is ensured to be kept in an opening state.
Description
Technical Field
The utility model relates to the field of fire-fighting fire-extinguishing valve equipment, in particular to a fire-fighting electromagnetic selector valve capable of preventing resetting after being opened.
Background
The solenoid valve is an automatic basic element for controlling the flow of fluid, and belongs to a common actuator. The existing electromagnetic valve usually controls the mechanical movement inside the electromagnetic valve by controlling the on-off of the current of the electromagnet, and then controls the on-off of the electromagnetic valve, so as to achieve the purpose of controlling the flow of fluid. However, in some specific situations, such as the closing of the solenoid valve used to spray fire extinguishing agent in a fire fighting system in case of power loss, the fire extinguishing may be delayed, and the fire situation may even be further expanded. The electric quantity in the fire-fighting system is limited, and other equipment such as an air conditioner and a water pump can be controlled to be closed preferentially and not to be powered continuously all the time. Therefore, it is an urgent technical problem to be solved by those skilled in the art to provide a fire-fighting electromagnetic selector valve capable of keeping an open state and preventing resetting after opening when the electromagnetic valve is powered off.
SUMMERY OF THE UTILITY MODEL
The utility model provides a fire-fighting electromagnetic selector valve capable of preventing resetting after being opened, and aims to solve the technical problem.
In order to solve the technical problem, the utility model provides a fire-fighting electromagnetic selector valve capable of preventing resetting after being opened, which comprises a valve seat and a control assembly arranged above the valve seat, wherein an inlet hole and an outlet hole are respectively formed in the valve seat; the control assembly comprises a sealing cavity, a piston is arranged in the sealing cavity, and the position of the piston corresponds to the communication position of the inlet hole and the outlet hole; the control assembly further comprises a manual switch mechanism and an automatic switch mechanism, and the manual switch mechanism and the automatic switch mechanism are respectively used for controlling the position of the piston; the control assembly further comprises a reset-preventing mechanism, the reset-preventing mechanism comprises a shell and a reset-preventing rod arranged in the shell, one end of the reset-preventing rod is in contact with the shell through a reset-preventing spring, and the other end of the reset-preventing rod corresponds to the side face of the piston.
Preferably, the anti-reset mechanism further comprises a reset switch, the reset switch is mounted on the housing, and the bottom of the reset switch penetrates through the housing and corresponds to the groove on the anti-reset rod; the relative position of the anti-reset rod and the piston can be adjusted by rotating the reset switch.
Preferably, the manual switch mechanism comprises a handle, one end of the handle extends out of the outer side of the control assembly, and the other end of the handle corresponds to the side face of the piston.
Preferably, the automatic switch mechanism comprises a solenoid valve wiring plug, an electromagnetic coil, a static iron core and a movable iron core, and the solenoid valve wiring plug is mounted outside the control assembly and supplies power to the electromagnetic coil; the static iron core and the movable iron core are sequentially arranged inside the electromagnetic coil from top to bottom.
Preferably, the control assembly further comprises a feedback mechanism, the feedback mechanism comprises a micro switch and a touch rod, the micro switch is mounted on the upper portion of the control assembly, the upper end of the touch rod corresponds to the micro switch, and the lower end of the touch rod penetrates through the static iron core and is fixedly connected with the movable iron core; the touch control rod is sleeved with a spring, and the spring is limited between the static iron core and the movable iron core.
Preferably, the working pressure difference of the fire-fighting electromagnetic selector valve is 0-3.5 MPA.
Compared with the prior art, the fire-fighting electromagnetic selector valve capable of preventing resetting after being opened has the following advantages that:
1. the fire-fighting electromagnetic selector valve provided by the utility model can avoid the resetting of the electromagnetic valve through the resetting-prevention mechanism under the condition that the electromagnetic valve is powered off and the like, so that the electromagnetic valve is ensured to be kept in an open state;
2. the utility model adopts the piston arranged in the sealing cavity to control the on-off of the fire-fighting electromagnetic selector valve, so that the fire-fighting electromagnetic selector valve can adapt to the pressure of fluid (such as fire extinguishing agent), and the application range of the fire-fighting electromagnetic selector valve is expanded.
Drawings
FIG. 1 is a schematic perspective view of a fire-fighting electromagnetic selector valve with reset prevention after being opened according to an embodiment of the present invention;
fig. 2 and 3 are sectional views of a fire-fighting electromagnetic selector valve which is prevented from being reset after being opened according to an embodiment of the utility model.
In the figure: 10-valve seat, 20-control component, 21-sealing cavity, 22-piston, 30-manual switching mechanism, 31-handle, 40-automatic switching mechanism, 41-solenoid valve wiring plug, 42-electromagnetic coil, 43-static iron core, 44-movable iron core, 50-anti-reset mechanism, 51-shell, 52-anti-reset rod, 53-anti-reset spring, 54-reset switch, 60-feedback mechanism, 61-microswitch, 62-touch control rod and 63-spring.
Detailed Description
In order to describe the technical solution of the above utility model in more detail, the following specific examples are given to demonstrate the technical effects; it is emphasized that these examples are intended to illustrate the utility model and are not to be construed as limiting the scope of the utility model.
The fire-fighting electromagnetic selector valve capable of preventing resetting after being opened, disclosed by the utility model, as shown in fig. 1 to 3, comprises a valve seat 10 and a control component 20 arranged above the valve seat 10, wherein an inlet hole and an outlet hole which are connected with a pipeline are respectively arranged in the valve seat 10, and fluid (gas or liquid) flows into the outlet hole from the inlet hole; the control assembly 20 comprises a sealing cavity 21, a piston 22 is installed in the sealing cavity 21, and the position of the piston 22 corresponds to the communication position of the inlet hole and the outlet hole; the control assembly 20 further includes a manual switch mechanism 30 and an automatic switch mechanism 40, the manual switch mechanism 30 and the automatic switch mechanism 40 are respectively used for controlling the position of the piston 22, that is, the position of the piston 22 can be controlled by the manual switch mechanism 30 and the automatic switch mechanism 40, so as to control the on/off of the electromagnetic shielding selection valve. The control assembly 20 further comprises a reset prevention mechanism 50, wherein the reset prevention mechanism 50 comprises a shell 51 and a reset prevention rod 52 arranged inside the shell 51, one end of the reset prevention rod 52 is in contact with the shell 51 through a reset prevention spring 53, and the other end of the reset prevention rod 52 corresponds to the side surface of the piston 22. In this embodiment, the anti-return spring 53 is in a compressed state, and can provide continuous thrust for the anti-return rod 52, so that the anti-return rod 52 is in close contact with the piston 22 (or the movable iron core 44 fixedly connected with the piston 22), thereby avoiding disconnection of the fire-fighting electromagnetic selector valve when power is suddenly lost or continuous power cannot be provided for the fire-fighting electromagnetic selector valve, and ensuring that the fire extinguishing agent can be continuously sprayed.
Preferably, please refer to fig. 3 with emphasis, the reset-preventing mechanism 50 further includes a reset switch 54, the reset switch 54 is mounted on the housing 51, and the bottom of the reset switch 54 passes through the housing 51 and corresponds to the groove on the reset-preventing rod 52; rotating the reset switch 54 adjusts the relative position of the reset prevention lever 54 and the piston 22. Specifically, when the reset switch 54 is rotated to contact with the left side of the recess, the reset prevention lever 52 is caught and out of contact with the piston 22 (plunger 44), and the position of the piston 22 is only related to the states of the manual switching mechanism 30 and the automatic switching mechanism 40; when the reset switch 54 rotates to contact with the right side of the groove, the reset-preventing rod 52 approaches to the right under the thrust of the reset-preventing spring 53 and closely contacts with the side surface or the step of the piston 22 (the plunger 44), and the position of the piston 22 is not changed and the fire-fighting electromagnetic selector valve is kept open no matter which state the manual switch mechanism 30 and the automatic switch mechanism 40 are in.
Preferably, please refer to fig. 2 with emphasis, the manual switch mechanism 30 includes a handle 31, one end of the handle 31 extends outside the control component 20, and the other end corresponds to the side surface of the piston 22, and the position of the piston 22 (movable iron core 44) can be directly and manually controlled by pushing the handle 31, so as to realize the manual opening and closing of the fire-fighting electromagnetic selector valve; preferably, the automatic switch mechanism 40 includes a solenoid valve connection plug 41, a solenoid coil 42, a stationary core 43 and a movable core 44, and the solenoid valve connection plug 41 is installed outside the control assembly 20 and supplies power to the solenoid coil 42; the static iron core 43 and the movable iron core 44 are sequentially arranged inside the electromagnetic coil 42 from top to bottom, and the position of the piston 22 (movable iron core 44) can be controlled by the on-off of the power connected with the electromagnetic valve wiring plug 41, so that the fire-fighting electromagnetic selector valve can be automatically opened and closed.
Preferably, with continuing reference to fig. 2, the control assembly 20 further includes a feedback mechanism 60, the feedback mechanism 60 includes a micro switch 61 and a touch rod 62, the micro switch 61 is mounted on the upper portion of the control assembly 20, the upper end of the touch rod 62 corresponds to the micro switch 61, and the lower end of the touch rod 62 passes through the stationary core 43 and is fixedly connected to the movable core 44, so that the movement state of the movable core 44 can be known at any time according to the state of the micro switch 61, and an operator can intuitively and accurately judge whether the fire-fighting electromagnetic selector valve is in the open state or the open state; the touch control rod 62 is sleeved with a spring 63, and the spring 63 is limited between the static iron core 43 and the movable iron core 44 and used as a buffer between the static iron core 43 and the movable iron core 44.
Preferably, the working pressure difference of the fire-fighting electromagnetic selector valve is 0-3.5 MPA, the piston 22 arranged in the sealed cavity 21 is used for controlling the on-off of the fire-fighting electromagnetic selector valve, so that the fire-fighting electromagnetic selector valve can adapt to the pressure of fluid (such as fire extinguishing agent), when the working pressure difference is 0-3.5 MPA, the fire-fighting electromagnetic selector valve can be normally opened and closed, leakage cannot occur, and the application range of the fire-fighting electromagnetic selector valve is expanded.
In summary, the fire-fighting electromagnetic selector valve capable of preventing resetting after being opened provided by the utility model comprises a valve seat 10 and a control component 20 arranged above the valve seat 10, wherein an inlet hole and an outlet hole are respectively arranged in the valve seat 10; the control assembly 20 comprises a sealing cavity 21, a piston 22 is installed in the sealing cavity 21, and the position of the piston 22 corresponds to the communication position of the inlet hole and the outlet hole; the control assembly 20 further comprises a manual switch mechanism 30 and an automatic switch mechanism 40, wherein the manual switch mechanism 30 and the automatic switch mechanism 40 are respectively used for controlling the position of the piston 22; the control assembly 20 further comprises a reset prevention mechanism 50, wherein the reset prevention mechanism 50 comprises a shell 51 and a reset prevention rod 52 arranged inside the shell 51, one end of the reset prevention rod 52 is in contact with the shell 51 through a reset prevention spring 53, and the other end of the reset prevention rod 52 corresponds to the side surface of the piston 22. The fire-fighting electromagnetic selector valve provided by the utility model can be electrically and manually opened, and can also realize the anti-reset function through the anti-reset mechanism 50, so that the fire-fighting electromagnetic selector valve is ensured to be kept in an open state.
It will be apparent to those skilled in the art that various changes and modifications may be made in the utility model without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (6)
1. The fire-fighting electromagnetic selector valve capable of preventing resetting after being opened is characterized by comprising a valve seat and a control assembly arranged above the valve seat, wherein an inlet hole and an outlet hole are respectively formed in the valve seat; the control assembly comprises a sealing cavity, a piston is arranged in the sealing cavity, and the position of the piston corresponds to the communication position of the inlet hole and the outlet hole; the control assembly further comprises a manual switch mechanism and an automatic switch mechanism, and the manual switch mechanism and the automatic switch mechanism are respectively used for controlling the position of the piston; the control assembly further comprises a reset-preventing mechanism, the reset-preventing mechanism comprises a shell and a reset-preventing rod arranged in the shell, one end of the reset-preventing rod is in contact with the shell through a reset-preventing spring, and the other end of the reset-preventing rod corresponds to the side face of the piston.
2. The fire-fighting electromagnetic selector valve capable of preventing resetting after being opened as recited in claim 1, wherein the resetting-prevention mechanism further comprises a resetting switch, the resetting switch is mounted on the housing, and the bottom of the resetting switch penetrates through the housing to correspond to the groove on the resetting-prevention rod; the relative position of the anti-reset rod and the piston can be adjusted by rotating the reset switch.
3. A fire-fighting electromagnetic selector valve preventing reset after being opened as set forth in claim 1, wherein said manual switch mechanism comprises a handle, one end of which extends outside of said control assembly and the other end of which corresponds to the side of said piston.
4. The fire-fighting electromagnetic selector valve capable of preventing resetting after being opened as recited in claim 1, wherein the automatic switching mechanism comprises an electromagnetic valve wiring plug, an electromagnetic coil, a static iron core and a movable iron core, wherein the electromagnetic valve wiring plug is mounted outside the control assembly and supplies power to the electromagnetic coil; the static iron core and the movable iron core are sequentially arranged inside the electromagnetic coil from top to bottom.
5. The electromagnetic fire control selector valve capable of preventing resetting after being opened as claimed in claim 4, wherein the control assembly further comprises a feedback mechanism, the feedback mechanism comprises a micro switch and a touch rod, the micro switch is mounted on the upper portion of the control assembly, the upper end of the touch rod corresponds to the micro switch in position, and the lower end of the touch rod penetrates through the static iron core and is fixedly connected with the movable iron core; the touch control rod is sleeved with a spring, and the spring is limited between the static iron core and the movable iron core.
6. The fire-fighting electromagnetic selector valve capable of preventing resetting after being opened as recited in claim 1, wherein the working pressure difference of the fire-fighting electromagnetic selector valve is 0-3.5 MPA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220191887.7U CN216618735U (en) | 2022-01-24 | 2022-01-24 | Fire-fighting electromagnetic selector valve capable of preventing resetting after opening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220191887.7U CN216618735U (en) | 2022-01-24 | 2022-01-24 | Fire-fighting electromagnetic selector valve capable of preventing resetting after opening |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216618735U true CN216618735U (en) | 2022-05-27 |
Family
ID=81689857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220191887.7U Active CN216618735U (en) | 2022-01-24 | 2022-01-24 | Fire-fighting electromagnetic selector valve capable of preventing resetting after opening |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216618735U (en) |
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2022
- 2022-01-24 CN CN202220191887.7U patent/CN216618735U/en active Active
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