Impact-resistant electric control head and start valve

Abstract

The present invention provides an impact-resistant electric control head and a starting valve, comprising: a limiting structure, a fixed locking structure, a touch switch and an ejector pin; one side of the fixed locking structure is connected to the limiting structure and is limited by the limiting structure; the touch switch is installed on the other side of the fixed locking structure, and the fixed locking structure is connected to the ejector pin; the touch switch is electrically connected to the limiting structure; when in a waiting state, the fixed locking structure rotates to one side and is limited by the limiting structure, the fixed locking structure is disconnected from the touch switch, and the ejector pin is retracted through the fixed locking structure; when in an excited state, the fixed locking structure rotates to the other side and is limited by the limiting structure, the fixed locking structure is connected to the touch switch, and the ejector pin is ejected through the fixed locking structure. This device solves the possibility of malfunction of valves in current fire-fighting systems, and can effectively reduce the risk of malfunction of ship fire-fighting systems when subjected to strong impacts such as collisions and explosions.

Description

Technical Field

[0001] The present invention relates to the field of fire protection, in particular to an impact-resistant electric control head and a starting valve; in particular, to the design field of electromagnetic starters and electric control heads of valves in the field of fire protection. Background Art

[0002] In ship fire fighting, the gas fire extinguishing system is one of the main fire fighting systems; in the gas fire extinguishing system, the distribution valves, fire extinguishing agent cylinders and bottle head valves of nitrogen drive cylinders distributed on the fire extinguishing pipeline all require the use of an electric control head (also called an electromagnetic starter).

[0003] Generally, the electric control head is not impact-resistant. When subjected to high-intensity impacts such as collisions and explosions, the electric control head will malfunction, which will cause the gas in the cylinder to leak accidentally, and the distribution valve on the fire extinguishing pipeline to malfunction, causing the gas fire extinguishing system to leak into the protected area. The erroneous release of some gas fire extinguishing agents can cause personal damage or even casualties. Therefore, once a high-intensity impact occurs, the general electric control head will malfunction due to its inability to withstand impact, causing the gas fire extinguishing agent to leak, resulting in large economic losses and casualties. In addition, the electric control head (electromagnetic starter) generally needs to keep the power supply on during operation until the work is completed, and the power supply can be disconnected. This will make it impossible to keep the power supply on during fire fighting in special circumstances, which will cause the starter valve to fail.

[0004] Therefore, it is necessary to design an impact-resistant electric control head to prevent valve malfunctions caused by impact.

[0005] Patent document CN109873574A discloses an electromagnetic soft starter for an electric motor, comprising a device body, connecting plates are provided on both sides of the lower end of the device body, an adjusting device is installed in the inner cavity of the device body, fixing plates are installed at both ends of the inner cavity of the device body, a card plate is provided at one end of the fixing plate, a transmission device is installed between the two card plates, an electromagnetic generating device is provided at one end of the transmission device, a hidden transfer protection device is provided at the upper end of the electromagnetic generating device, an output device is installed at the upper end of the protection device, an export device is installed at one end of the output device through a connecting piece, and one end of the export device extends to the outside of the device body.

[0006] Patent document CN108709055A provides a mining explosion-proof low-pressure vacuum electromagnetic starter, which belongs to the technical field of electromagnetic starters, and includes an electromagnetic starter body, a vertical plate and a bracket. The bracket includes two base frames, an L-shaped fixed plate, a support block and a roller. The base frame includes a first horizontal plate, an inclined plate connected to both ends of the first horizontal plate and inclined away from the first horizontal plate, and a second horizontal plate connected to the inclined plate. One side of the L-shaped fixed plate is fixed to the first horizontal plate, and the other side of the L-shaped fixed plate is fixedly connected to the vertical plate. A first bolt hole is provided on the inclined plate, and a through groove passing through the base is provided on the support block, and two vertically distributed second bolt holes that are perpendicular to the through groove and matched with the first bolt hole are provided on the support block. The vertical height of the first bolt hole from the first horizontal plate is greater than the vertical height of the second bolt hole below from the bottom of the roller, and is less than the vertical height of the second bolt hole above from the bottom of the roller.

[0007] The above existing patents all fail to solve the problem of accidental impact touch. Summary of the invention

[0008] In view of the defects in the prior art, an object of the present invention is to provide an impact-resistant electric control head and a starting valve.

[0009] According to the present invention, an impact-resistant electric control head includes: a limit structure, a fixed locking structure, a touch switch and an ejector pin;

[0010] One side of the fixed locking structure is connected to the limiting structure and is limited by the limiting structure;

[0011] The touch switch is installed on the other side of the fixed locking structure, and the fixed locking structure is connected to the ejector pin;

[0012] The touch switch is electrically connected to the limit structure;

[0013] When in the ready-to-be-activated state, the fixed locking structure rotates to one side and is limited by the limiting structure, the fixed locking structure is disconnected from the touch switch, and the ejector pin is retracted by the fixed locking structure;

[0014] When in the excited state, the fixed locking structure rotates to the other side and is limited by the limiting structure, the fixed locking structure is connected to the touch switch, and the ejector pin is ejected through the fixed locking structure.

[0015] Preferably, the fixing and locking structure comprises: a rotating shaft, a supporting rod, a prying rod and a rotating pin;

[0016] The rotating shaft is rotatably mounted on the frame, and the prying rod is fixedly connected to the rotating shaft via the rotating pin;

[0017] One end of the support rod is connected to one end of the prying rod.

[0018] Preferably, the limiting structure comprises: a first spring, a limiting platform, a rotating platform and a rotating electromagnet;

[0019] One end of the rotating electromagnet is rotatably mounted on the frame, the other end of the rotating electromagnet is fixedly mounted on one end of a guide rod, and the rotating electromagnet is connected to a power source;

[0020] The rotating platform is fixedly mounted on the guide rod, and the rotating platform rotates together with the rotating electromagnet;

[0021] The limiting platform is installed on the frame, and the rotating platform is limited by the limiting platform;

[0022] The first spring is installed at the other end of the guide rod, and the rotating platform is reset by the first spring.

[0023] Preferably, the other end of the support rod is limited by the rotating platform;

[0024] The rotating shaft is provided with a second spring and is reset by the second spring.

[0025] Preferably, one end of the ejector pin is mounted on the other end of the prying rod;

[0026] The other end of the ejector pin is provided with a third spring and is reset by the third spring.

[0027] Preferably, a slot is provided at the end of the prying rod connected to the supporting rod;

[0028] A fixed shaft is installed on the frame;

[0029] When in the ready-to-be-activated state, the fixed shaft is installed in the slot.

[0030] Preferably, a toggle pin is installed on the rotating shaft;

[0031] When in the ready-to-be-activated state, the toggle pin is disconnected from the touch switch;

[0032] When in the excited state, the toggle pin triggers the touch switch.

[0033] Preferably, the touch switch is mounted on the frame;

[0034] The touch switch is electrically connected to the rotating electromagnet;

[0035] When the toggle pin touches the touch switch, the rotating electromagnet disconnects the power supply.

[0036] Preferably, when the impact-resistant electric control head is restored from the excited state to the waiting state, the rotating shaft drives the prying rod to rotate through the rotating pin, and the prying rod drives the supporting rod to rotate upward until the slot is buckled on the fixed shaft, and the supporting rod pushes the rotating platform to rotate until the supporting rod is placed on the upper side of the rotating platform, and the rotating platform is reset by the first spring;

[0037] When the anti-shock electric control head enters the excited state from the waiting state, the rotating electromagnet drives the rotating platform to rotate, the support rod rotates to the lower side of the rotating platform, the slot falls off the fixed shaft, the rotating shaft is reset by the second spring, the rotating shaft drives the toggle pin to touch the touch switch, the rotating electromagnet disconnects the power supply, the rotating platform is reset by the first spring, and during the resetting process of the rotating platform, it is limited by the limit table to rotate beyond the reset position, and the third spring drives the ejector pin to be ejected.

[0038] Preferably, a starting valve adopts the impact-resistant electric control head.

[0039] Preferably, the center of gravity of the rotating platform passes through the axis of the rotating electromagnet.

[0040] Compared with the prior art, the present invention has the following beneficial effects:

[0041] 1. This device solves the possibility of misoperation of valves in current fire-fighting systems, and can effectively reduce the risk of misrelease when the ship's fire-fighting system is subjected to strong impacts such as collisions and explosions.

[0042] 2. The device is equipped with a touch switch. The action of the electric control head can cut off the power supply and keep the device in working state until it is manually reset. This ensures that in extreme cases, the fire-fighting related valves can be successfully started, ensuring the effectiveness of fire extinguishing. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0044] Figure 1 It is a schematic diagram of the structure of the anti-shock electric control head in the excited state;

[0045] Figure 2 This is a schematic diagram of the structure of the impact-resistant electric control head in the waiting state;

[0046] As shown in the figure:

[0047] DETAILED DESCRIPTION

[0048] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0049] Example 1

[0050] like Figure 1 As shown, an impact-resistant electric control head can be used for various valves such as starting valves, including: a limiting structure, a fixed locking structure, a touch switch 12 and a pin 14; one side of the fixed locking structure is connected to the limiting structure and limited by the limiting structure, the touch switch 12 is installed on the other side of the fixed locking structure, the fixed locking structure is connected to the pin 14, the touch switch 12 is electrically connected to the limiting structure, when in the waiting state, the fixed locking structure rotates to one side and is limited by the limiting structure, the fixed locking structure is disconnected from the touch switch 12, and the pin 14 is retracted through the fixed locking structure, when in the excited state, the fixed locking structure rotates to the other side and is limited by the limiting structure, the fixed locking structure is connected to the touch switch 12, and the pin 14 is ejected through the fixed locking structure. The fixed locking structure includes: a rotating shaft 6, a support rod 7, a prying rod 8 and a rotating pin 9; the rotating shaft 6 is rotatably installed on the frame 1, the prying rod 8 is fixedly connected to the rotating shaft 6 through the rotating pin 9, and one end of the support rod 7 is connected to one end of the prying rod 8. The limiting structure includes: a first spring 2, a limiting platform 3, a rotating platform 4 and a rotating electromagnet 5; one end of the rotating electromagnet 5 is rotatably mounted on the frame 1, and the other end of the rotating electromagnet 5 is fixedly mounted on one end of a guide rod, the rotating electromagnet 5 is connected to a power supply, the rotating platform 4 is fixedly mounted on the guide rod, the rotating platform 4 rotates together with the rotating electromagnet 5, the limiting platform 3 is mounted on the frame 1, the rotating platform 4 is limited by the limiting platform 3 to prevent rotation beyond the reset position, the other end of the guide rod is mounted with a first spring 2, and the rotating platform 4 is reset by the first spring 2.

[0051] The other end of the support rod 7 is limited by the rotating platform 4, and the rotating shaft 6 is installed with a second spring 13 and reset by the second spring 13. The other end of the prying rod 8 is installed with one end of the ejector pin 14, and the other end of the ejector pin 14 is installed with a third spring 15 and reset by the third spring 15. The prying rod 8 is connected to the end of the support rod 7 to set a card slot, and the frame 1 is installed with a fixed shaft 10. When it is in the waiting state, the fixed shaft 10 is installed in the card slot. The rotating shaft 6 is installed with a toggle pin 11. When it is in the waiting state, the toggle pin 11 is disconnected from the touch switch 12. When it is in the excited state, the toggle pin 11 touches the touch switch 12. The touch switch 12 is installed on the frame 1, and the touch switch 12 is electrically connected to the rotating electromagnet 5. When the toggle pin 11 touches the touch switch 12, the rotating electromagnet 5 disconnects the power supply.

[0052] like Figure 2 As shown, when the anti-impact electric control head is restored from the excited state to the waiting state, the rotating shaft 6 drives the prying rod 8 to rotate through the rotating pin 9, and the prying rod 8 drives the support rod 7 to rotate upward until the slot is buckled on the fixed shaft 10, and the support rod 7 pushes the rotating platform 4 to rotate until the support rod 7 is placed on the upper side of the rotating platform 4, and the rotating platform 4 is reset by the first spring 2; when the anti-impact electric control head enters the excited state from the waiting state, the rotating electromagnet 5 drives the rotating platform 4 to rotate, the support rod 7 rotates to the lower side of the rotating platform 4, the slot falls off the fixed shaft 10, the rotating shaft 6 is reset by the second spring 13, the rotating shaft 6 drives the toggle pin 11 to touch the touch switch 12, the rotating electromagnet 5 disconnects the power supply, and the rotating platform 4 is reset by the first spring 2. During the resetting process of the rotating platform 4, the limit table 3 is used to limit the rotation to prevent it from exceeding the reset position, and the third spring 15 drives the ejector pin 14 to eject.

[0053] Example 2

[0054] Example 2 is a preferred example of Example 1.

[0055] like Figure 1 and Figure 2 As shown, this embodiment is composed of a frame 1, a first spring 2, a limit table 3, a rotating platform 4, a rotating electromagnet 5, a rotating shaft 6, a support rod 7, a prying rod 8, a rotating pin 9, a fixed shaft 10, a toggle pin 11, a touch switch 12, a second spring 13, a push pin 14 and a third spring 15.

[0056] The frame 1 is the shell of the electric control head, the first spring 2 is used to reset the rotating electromagnet 5, the limit table 3 is used to limit the initial position of the rotating platform 4, the rotating platform 4 is used to support the support rod 7, and the support rod 7 is released by the rotation of the rotating electromagnet 5. The rotating electromagnet 5 serves as the power source of the electric control head and receives the external control signal. The rotating shaft 6 is used to reset the electric control head and transmit the action to the touch switch 12. The support rod 7 and the fixed shaft 10 are matched to lock the initial position of the electric control head. The prying rod 8 and the support rod 7 are matched to release the lock of the support rod 7 and the fixed shaft 10; the rotating pin 9 is installed on the rotating shaft 6 to drive the support rod 7 and the prying rod 8 to reset. The toggle pin 11 and the touch switch 12 are matched. When the electric control head is in action, the power supply of the rotating electromagnet 5 is cut off by the touch switch 12. The second spring 13 is used to reset the rotating shaft 6. The ejector pin 14 is the output of the electric control head. The valve is opened by the ejector pin 14. The third spring 15 is used to pop out the ejector pin 14.

[0057] The rotating shaft 6, support rod 7 and pry rod 8 of the electric control head are fixed locking structures that can withstand impacts in any direction; only the rotating platform 4 may malfunction when subjected to impact forces in the upward and downward directions. However, by making the rotating platform 4 into a symmetrical structure along the axis of the rotating electromagnet 5 (the center of gravity and weight on both sides are equal), that is, the center of gravity of the rotating platform 4 is on the axis of the rotating electromagnet 5, it can be ensured that when impacted in the upward, downward, left and right directions, the forces on the left and right sides of the axis and on the upper and lower sides are equal in magnitude and opposite in direction, thereby offsetting each other, ensuring that the rotating platform 4 does not move when impacted.

[0058] When the impact-resistant electric control head is in the excited state, when it is necessary to restore the electric control head to the waiting state, use a tool to rotate the rotating shaft 6, the rotating shaft 6 drives the rotating pin 9, the rotating pin 9 drives the prying rod 8 and the support rod 7 to rotate upward until the prying rod 8 is hung on the fixed shaft 10, the support rod 7 rotates upward to drive the rotating platform 4 to rotate, when the support rod 7 rises to the rotating platform 4, the first spring 2 resets the rotating platform 4, at this time the support rod 7 is placed above the rotating platform 4, and the impact-resistant electric control head is in the waiting state. When the rotating electromagnet 5 is energized, it drives the rotating platform 4 to rotate, at this time the support rod 7 falls from the rotating platform 4, so that the prying rod 8 falls off the fixed shaft 10, the second spring 12 drives the rotating shaft 5 to rotate, at this time the third spring 15 brings the support rod 7, the prying rod 8, and the ejector pin 14 to eject downward, completing the action of the electric control head. At the same time, the rotating shaft 6 drives the toggle pin 11 to touch the touch switch 12 to act, cut off the power supply of the rotating electromagnet 5, the rotating platform 3 is reset, and the limit table 3 limits the reset position of the rotating platform 4.

[0059] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0060] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. An impact-resistant electric control head, characterized in that: include: A limit structure, a fixed locking structure, a touch switch (12) and an ejector pin (14); One side of the fixed locking structure is connected to the limiting structure and is limited by the limiting structure; The touch switch (12) is mounted on the other side of the fixed locking structure, and the fixed locking structure is connected to the ejector pin (14); The touch switch (12) is electrically connected to the limit structure; When in the ready-to-be-activated state, the fixed locking structure rotates to one side and is limited by the limiting structure, the fixed locking structure is disconnected from the touch switch (12), and the ejector pin (14) is retracted by the fixed locking structure; When in an excited state, the fixed locking structure rotates to the other side and is limited by the limiting structure, the fixed locking structure is connected to the touch switch (12), and the ejector pin (14) is ejected through the fixed locking structure; The fixing and locking structure comprises: a rotating shaft (6), a supporting rod (7), a prying rod (8) and a rotating pin (9); The rotating shaft (6) is rotatably mounted on the frame (1), and the prying rod (8) is fixedly connected to the rotating shaft (6) via the rotating pin (9); One end of the support rod (7) is connected to one end of the prying rod (8); The limiting structure comprises: a first spring (2), a limiting platform (3), a rotating platform (4) and a rotating electromagnet (5); One end of the rotating electromagnet (5) is rotatably mounted on the frame (1), and the other end of the rotating electromagnet (5) is fixedly mounted on one end of a guide rod, and the rotating electromagnet (5) is connected to a power source; The rotating platform (4) is fixedly mounted on the guide rod, and the rotating platform (4) rotates together with the rotating electromagnet (5); The limiting platform (3) is mounted on the frame (1), and the rotating platform (4) is limited by the limiting platform (3); The first spring (2) is installed at the other end of the guide rod, and the rotating platform (4) is reset by the first spring (2); The other end of the support rod (7) is limited by the rotating platform (4); The rotating shaft (6) is installed with a second spring (13) and is reset by the second spring (13); One end of the ejector pin (14) is mounted on the other end of the prying rod (8); A third spring (15) is installed at the other end of the ejector pin (14) and is reset by the third spring (15); The prying rod (8) is connected to the end of the support rod (7) and a slot is provided; A fixed shaft (10) is mounted on the frame (1); When in the ready-to-be-activated state, the fixed shaft (10) is installed in the slot; A toggle pin (11) is mounted on the rotating shaft (6); When in the ready-to-be-activated state, the toggle pin (11) is disconnected from the touch switch (12); When in an excited state, the toggle pin (11) triggers the touch switch (12); The touch switch (12) is mounted on the frame (1); The touch switch (12) is electrically connected to the rotating electromagnet (5); When the toggle pin (11) touches the touch switch (12), the rotating electromagnet (5) disconnects the power supply.

2. The impact-resistant electric control head according to claim 1, characterized in that: When the impact-resistant electric control head is restored from the excited state to the waiting state, the rotating shaft (6) drives the prying rod (8) to rotate through the rotating pin (9), and the prying rod (8) drives the support rod (7) to rotate upward until the slot is buckled on the fixed shaft (10), and the support rod (7) pushes the rotating platform (4) to rotate until the support rod (7) is placed on the upper side of the rotating platform (4), and the rotating platform (4) is reset by the first spring (2); When the anti-shock electric control head enters the excited state from the waiting state, the rotating electromagnet (5) drives the rotating platform (4) to rotate, the support rod (7) rotates to the lower side of the rotating platform (4), the card slot falls off the fixed shaft (10), the rotating shaft (6) is reset by the second spring (13), the rotating shaft (6) drives the toggle pin (11) to touch the touch switch (12), the rotating electromagnet (5) disconnects the power supply, the rotating platform (4) is reset by the first spring (2), and during the resetting process, the rotating platform (4) is limitedly rotated by the limit table (3) to exceed the reset position, and the third spring (15) drives the ejector pin (14) to be ejected.

3. A starting valve, characterized in that: The starting valve adopts the impact-resistant electric control head described in claim 1 or 2.

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