A pre-action alarm valve

Abstract

The present invention relates to the field related to fire fighting equipment, and in particular to a pre-action alarm valve, including a valve body structure, an inclined frame, a horizontal frame, a support structure and a monitoring structure. The present invention optimizes the arrangement of the valve body structure, a support structure is connected to the valve body structure through an inclined frame and a horizontal frame, a monitoring structure is connected to the bottom of the support structure, and a sleeve is driven to rotate by a steering assembly on the valve body structure, so that the support structure and the monitoring structure move synchronously with the rotation of the inclined frame and the horizontal frame, and the monitoring structure is further turned and displaced under the action of the support structure, so that the surrounding environment can be observed through the monitoring structure, and when the valve body structure sounds an alarm, the push assembly on the monitoring structure moves to drive the bin seat to move out laterally, so that the liquid outlet valve is close to the top of the fire source, and then the solenoid valve in the liquid outlet valve is opened to spray water on the fire, reducing the impact of excessive water discharge on the surrounding environment, and improving the accuracy and flexibility of the alarm valve.

Description

Technical Field

[0001] The invention relates to the field related to fire fighting equipment, and in particular to a pre-action alarm valve. Background Art

[0002] The pre-action alarm valve is an automatic sprinkler fire extinguishing device that combines fire detection alarm technology with an automatic sprinkler system to provide dual protection for the protected object. The pre-action alarm valve is usually installed in places where water is needed to extinguish fires but where water spraying is not allowed for non-fire reasons, such as libraries that store rare and authentic books, archives, museums, valuables storage rooms, computer rooms, etc.

[0003] At present, Chinese patent application number: CN201921708529.3 discloses a pre-action alarm valve, including a deluge valve and a wet alarm, a wet alarm is installed above the deluge valve, a connecting pipeline is installed on the outer wall of the deluge valve, a hydraulic alarm is installed on the top right side of the connecting pipeline, a water inlet is installed on the right side of the wet alarm, and a shock-absorbing sleeve is provided on the right side of the outer wall of the hydraulic alarm. Once a fire occurs, the hydraulic alarm sounds an alarm, and the vibration amplitude generated on the outside of the hydraulic alarm will be buffered by the rubber pad, and the compression spring will absorb the vibration amplitude generated by the hydraulic alarm again, which can significantly reduce the vibration amplitude of the hydraulic alarm, and can reduce the force between the pipe supporting the hydraulic alarm and the valve body, thereby ensuring the connection strength between the pipe supporting the hydraulic alarm and the valve body, and it is not easy to leak between the pipe supporting the hydraulic alarm and the valve body.

[0004] However, when the pre-action alarm valve of the prior art is used, the deluge valve is usually opened first when a fire occurs or a blaze occurs. When there are fewer combustibles around the fire source or the open flame of the fire source is small, the deluge valve is opened so that more objects in the surrounding environment are easily soaked by water, and the accuracy and flexibility of the alarm valve are relatively poor. Summary of the invention

[0005] Therefore, the present invention provides a pre-action alarm valve to solve the above technical problems.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a pre-action alarm valve, including a valve body structure, an inclined frame, a cross frame, a support structure and a monitoring structure, the top side of the right part of the valve body structure is fixedly connected to the cross frame, and the bottom side of the right part of the valve body structure is fixed to the inclined frame, the other side of the inclined frame is fixed to the cross frame, the other end of the cross frame is connected to the support structure, and the bottom of the support structure is connected to the monitoring structure, the valve body structure includes a wet alarm valve body connected to both sides of an external water supply channel, a shower valve body arranged on the top side of the wet alarm valve body, a base fastened to the bottom side of the wet alarm valve body, a support foot integrally formed on the outer surface of the base, a steering assembly installed on one side of the top of the support foot, and a sleeve connected to the right side of the top of the steering assembly, the sleeve is wrapped and arranged on the outer surface of the wet alarm valve body, and the upper and lower sides of the right part of the sleeve are respectively fixed to the cross frame and the inclined frame.

[0007] Preferably, a hydraulic alarm is arranged in the connecting pipeline outside the deluge valve body, and a temperature sensor and a flow sensor are arranged inside the wet alarm valve body and the deluge valve body.

[0008] Preferably, arc-shaped through grooves are provided in the middle of both the front and rear sides of the sleeve, and the two arc-shaped through grooves are respectively arranged on the outside of the water inlet and the water outlet on both sides of the wet alarm valve body.

[0009] Preferably, the steering assembly includes a mounting base whose bottom is fixed to the support leg, a first motor fastened to the top side of the mounting base, a first bevel gear connected to the right output end of the first motor, and a first bevel gear engaged with the bottom of the first bevel gear, the bottom of the first bevel gear is rotatably connected to the base, and the top of the first bevel gear is connected to the sleeve.

[0010] Preferably, the supporting structure includes a cylinder seat fixed to the cross frame on the left side, a second bevel gear disk rotatably connected to the bottom of the cylinder seat, a second bevel gear meshed with the left side of the top of the second bevel gear disk, a second motor connected to the middle of the left side of the second bevel gear, a connecting cylinder fixed to the middle side of the bottom of the second bevel gear disk, a supporting frame fixedly connected to the left side of the connecting cylinder, a tube body fixed to the middle side of the bottom of the connecting cylinder, and a pillar fixed to the left end of the tube body, the left side of the pillar is fastened to the supporting frame, the top of the second motor is fastened to the cross frame, and the left side of the bottom of the tube body is connected to the monitoring structure.

[0011] Preferably, the top of the rear side of the tube body is connected to an external water supply channel through a flexible tube.

[0012] Preferably, the monitoring structure includes a pushing assembly fixed to the support frame at the top, a storage seat connected to the right end of the pushing assembly, a hose arranged on the middle side of the top of the storage seat, a liquid outlet valve embedded in the middle of the right side of the storage seat, and a camera arranged on the top right side of the storage seat, the top end of the hose is connected to the tube body, an inclined tube is arranged on the right side inside the storage seat, and both sides of the inclined tube are respectively connected to the hose and the liquid outlet valve.

[0013] Preferably, a processor and a wireless transmission module are provided on the left side inside the cabin seat for transmitting signal information to an external device.

[0014] Preferably, the pushing assembly includes a vertical frame whose top is fixed to the supporting frame, a third motor fastened to the lower right side of the rear portion of the vertical frame, a push rod connected to the front output end of the third motor, a first connecting rod connected to the top end of the push rod, a first support rod rotatably connected to the bottom end of the first connecting rod, a second connecting rod rotatably connected to the bottom end of the first support rod, a second support rod rotatably connected to the top end of the second connecting rod, and a positioning block fixedly connected to the right side of the second support rod, the right side of the positioning block is fastened to the storage seat, the push rod is rotatably connected to the bottom side of the vertical frame, the first support rod is rotatably connected to the top side of the vertical frame, and the top of the second support rod is rotatably connected to the connection between the push rod and the first connecting rod.

[0015] Preferably, the first connecting rod, the first supporting rod, the second connecting rod and the second supporting rod are connected to form a quadrilateral structure on the inner side, and two positioning blocks are provided, which are respectively located in the middle of the right side and the bottom side of the second supporting rod.

[0016] Preferably, the first connecting rod and the second connecting rod have the same structure and size.

[0017] Beneficial effects of the present invention:

[0018] The present invention optimizes the arrangement of the valve body structure, and a supporting structure is connected to the valve body structure through an oblique frame and a horizontal frame, and a monitoring structure is connected to the bottom of the supporting structure. The sleeve is driven to rotate by a steering assembly on the valve body structure, so that the supporting structure and the monitoring structure move synchronously with the rotation of the oblique frame and the horizontal frame, and the monitoring structure is further turned and shifted under the action of the supporting structure, so as to observe the surrounding environment through the monitoring structure. When the valve body structure sounds an alarm, the pushing assembly on the monitoring structure is actuated to drive the bin seat to move out laterally, so that the liquid outlet valve is close to the top of the fire source, and then the solenoid valve in the liquid outlet valve is opened to spray water on the fire site, thereby reducing the impact of excessive water discharge on the surrounding environment and improving the accuracy and flexibility of the alarm valve.

[0019] The wet alarm valve body and the shower valve body of the present invention are provided with temperature sensors and flow sensors to measure the temperature and water flow inside the wet alarm valve body and the shower valve body to provide more comprehensive monitoring capabilities. Arc-shaped through grooves are opened in the middle of the front and rear sides of the sleeve, and the two arc-shaped through grooves are respectively arranged on the outside of the water inlet and the water outlet on both sides of the wet alarm valve body to reduce the limit generated and ensure the stability of the sleeve rotation. An inclined pipe is arranged on the right side of the warehouse seat, and the two sides of the inclined pipe are respectively connected to the hose and the liquid outlet valve, so that the water in the pipe body can be discharged into the liquid outlet valve through the hose. A processor and a wireless transmission module are arranged on the left side of the warehouse seat for transmitting signal information to an external device. The monitoring signal can be received through the external device to perform remote monitoring.

[0020] After the first connecting rod, the first supporting rod, the second connecting rod and the second supporting rod of the present invention are connected, a quadrilateral structure is formed on the inner side, so that the quadrilateral structure can be folded and drive the second supporting rod to be pushed outward. Two positioning blocks are provided, and are respectively located in the middle of the right side and the bottom side of the second supporting rod, which play a supporting and positioning role to ensure the stability of the warehouse seat installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the valve body structure of the present invention;

[0023] Figure 3 is a schematic structural diagram of a steering assembly of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the support and rotation structure of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the monitoring structure of the present invention;

[0026] Figure 6 It is a structural schematic diagram of the push assembly of the present invention.

[0027] Among them: valve body structure-1, inclined frame-2, horizontal frame-3, support structure-4, monitoring structure-5, wet alarm valve body-11, rain valve body-12, base-13, support foot-14, steering assembly-15, sleeve-16, mounting seat-151, first motor-152, first bevel gear-153, first bevel gear disc-154, cylinder seat-41, second bevel gear disc-42, second bevel gear-43, second motor-44, connecting cylinder-45, supporting frame-46, pipe body-47, pillar-48, push assembly-51, warehouse seat-52, hose-53, liquid outlet valve-54, camera-55, stand-511, third motor-512, push rod-513, first connecting rod-514, first support rod-515, second connecting rod-516, second support rod-517, positioning block-518. DETAILED DESCRIPTION

[0028] In order to further explain the technical solution of the present invention, it is described in detail below through specific embodiments.

[0029] like Figure 1 As shown, the present invention provides a pre-action alarm valve, including a valve body structure 1, an inclined frame 2, a cross frame 3, a support structure 4 and a monitoring structure 5. The top side of the right part of the valve body structure 1 is fixedly connected to the cross frame 3, and the bottom side of the right part of the valve body structure 1 is fixed to the inclined frame 2, and the other side of the inclined frame 2 is fixed to the cross frame 3. Under the action of the valve body structure 1, the inclined frame 2 and the cross frame 3 are turned and displaced, the other end of the cross frame 3 is connected to the support structure 4, and the bottom of the support structure 4 is connected to the monitoring structure 5, so that the support structure 4 and the monitoring structure 5 are synchronously moved with the rotation of the cross frame 3, and the monitoring structure 5 is further turned and displaced under the action of the support structure 4, so as to observe the surrounding environment through the monitoring structure 5, and when the valve body structure 1 sounds an alarm, the outer water outlet of the monitoring structure 5 is moved close to the fire source, so as to spray water on the fire, reduce the impact of excessive water discharge on the surrounding environment, and improve the accuracy and flexibility of the alarm valve.

[0030] like Figure 1 , Figure 2 and Figure 3As shown, the present invention provides a pre-action alarm valve, and the valve body structure 1 includes a wet alarm valve body 11 connected to both sides of an external water supply channel, a shower valve body 12 arranged on the top side of the wet alarm valve body 11, a base 13 fastened to the bottom side of the wet alarm valve body 11, and a support foot 14 integrally formed on the outer surface of the base 13, so as to further install and fix it with the external water supply pipeline through the support foot 14 to improve the overall stability of use, a steering assembly 15 installed on one side of the top of the support foot 14 and a sleeve 16 connected to the right side of the top of the steering assembly 15, the sleeve 16 is wrapped and arranged on the outer surface of the wet alarm valve body 11, and the sleeve 16 is rotated on the outside of the wet alarm valve body 11 under the action of the steering assembly 15, and the upper and lower sides of the right part of the sleeve 16 are respectively fixed to the cross frame 3 and the inclined frame 2, so as to drive the cross frame 3 and the inclined frame 2 to move synchronously when the sleeve 16 rotates and shifts.

[0031] Among them, a hydraulic alarm is arranged in the connecting pipeline outside the deluge valve body 12, and a temperature sensor and a flow sensor are arranged inside the wet alarm valve body 11 and the deluge valve body 12 to measure the temperature and water flow inside the wet alarm valve body 11 and the deluge valve body 12 to provide more comprehensive monitoring capabilities. Arc-shaped through grooves are opened in the middle of the front and rear sides of the sleeve 16, and the two arc-shaped through grooves are respectively arranged on the outside of the water inlet and the water outlet on both sides of the wet alarm valve body 11 to reduce the limit generated and ensure the stability of the sleeve 16 rotation.

[0032] Among them, the steering assembly 15 includes a mounting base 151 whose bottom is fixed to the support leg 14, a first motor 152 fastened to the top side of the mounting base 151, a first bevel gear 153 connected to the right output end of the first motor 152, and a first bevel gear 154 meshed with the bottom of the first bevel gear 153. The bottom of the first bevel gear 154 is rotatably connected to the base 13, and the top of the first bevel gear 154 is connected to the sleeve 16. Under the action of the first motor 152, the first bevel gear 153 drives the first bevel gear 154 to rotate above the base 13, so that the sleeve 16 moves synchronously through the rotation of the first bevel gear 154.

[0033] like Figure 1 , Figure 4 , Figure 5 and Figure 6As shown, the present invention provides a pre-action alarm valve, the support structure 4 includes a cylinder seat 41 fixed to the horizontal frame 3 on the left side, a second bevel gear 42 rotatably connected to the bottom of the cylinder seat 41, a second bevel gear 43 meshed with the left side of the top of the second bevel gear 42, a second motor 44 connected to the middle of the left side of the second bevel gear 43, and a connecting cylinder 45 fixed to the middle side of the bottom of the second bevel gear 42. Under the action of the second motor 44, the second bevel gear 43 drives the second bevel gear 42 to rotate at the bottom of the cylinder seat 41, and is fixedly connected to the connecting cylinder The support frame 46 on the left side of 45 drives the connecting tube 45 and the support frame 46 to move synchronously when the second bevel gear plate 42 rotates. The tube body 47 fixed to the middle side of the bottom of the connecting tube 45 and the support frame 48 fixed to the left end of the tube body 47, the left side of the support frame 48 is fastened to the support frame 46, the top of the second motor 44 is fastened to the cross frame 3, the left side of the bottom of the tube body 47 is connected to the monitoring structure 5, and the top of the rear side of the tube body 47 is connected to the external water supply channel through a flexible pipe to send the external water source into the monitoring structure 5 after passing through the tube body 47.

[0034] Among them, the monitoring structure 5 includes a pushing component 51 fixed to the support frame 46 at the top, a storage seat 52 connected to the right end of the pushing component 51, so that the storage seat 52 can be pushed out laterally through the pushing component 51 to increase the position range where water can be sprayed, a hose 53 arranged on the middle side of the top of the storage seat 52, a liquid outlet valve 54 embedded in the middle of the right side of the storage seat 52, and a camera 55 arranged on the top of the right side of the storage seat 52, so that the external environment can be observed through the camera 55, the top end of the hose 53 is connected to the tube body 47, an inclined tube is arranged on the right side of the storage seat 52, and the two sides of the inclined tube are respectively connected to the hose 53 and the liquid outlet valve 54, so that the water in the tube body 47 can be discharged into the liquid outlet valve 54 through the hose 53, and a processor and a wireless transmission module are arranged on the left side of the storage seat 52, which are used to transmit signal information to external equipment, and the monitoring signal can be received through the external equipment, thereby performing remote monitoring.

[0035] The push assembly 51 includes a stand 511 fixed to the support frame 46 at the top, a third motor 512 fastened to the lower right side of the rear portion of the stand 511, and a push rod 513 connected to the front output end of the third motor 512, so that the push rod 513 is rotated by the third motor 512, a first connecting rod 514 connected to the top end of the push rod 513, and a first support rod 515 rotatably connected to the bottom end of the first connecting rod 514. When the push rod 513 rotates, the first support rod 515 is pulled by the first connecting rod 514 to move, and a second connecting rod 516 rotatably connected to the bottom end of the first support rod 515 and a second connecting rod 516 rotatably connected to the top of the second connecting rod 516 are rotated. The second support rod 517 at the end and the positioning block 518 fixedly connected to the right side of the second support rod 517, the first support rod 515 and the second connecting rod 516 enable the second support rod 517 to be pushed outward, and the right side of the positioning block 518 is fastened to the storage seat 52 to drive the storage seat 52 to move synchronously after the positioning block 518 is pushed outward, the push rod 513 is rotatably connected to the bottom side of the interior of the stand 511, the first support rod 515 is rotatably connected to the top side of the interior of the stand 511 to ensure the stability of the rotation, and the top of the second support rod 517 is rotatably connected to the connection between the push rod 513 and the first connecting rod 514 to support the rotation of the second support rod 517.

[0036] Among them, the first connecting rod 514 and the second connecting rod 516 have the same structure and size. After the first connecting rod 514, the first support rod 515, the second connecting rod 516 and the second support rod 517 are connected, a quadrilateral structure is formed on the inner side, so that the quadrilateral structure can be folded and drive the second support rod 517 to be pushed outward. There are two positioning blocks 518, which are respectively located in the middle of the right side and the bottom side of the second support rod 517, which play a supporting and positioning role to ensure the stability of the installation of the warehouse seat 52.

[0037] The present invention provides a pre-action alarm valve, the working principle of which is as follows:

[0038] First, the water inlet and outlet of the wet alarm valve body 11 and the deluge valve body 12 are respectively installed on the external water supply pipe, and connected to the external water supply channel through a flexible pipe at the rear side of the pipe body 47, and then the support leg 14 is further installed and fixed to the external water supply pipe by buckles to use this design;

[0039] Second, when a fire occurs, the temperature and smoke detectors installed in the surrounding environment send a fire alarm signal to the fire alarm controller or the fire control center. After receiving the alarm signal, the external terminal device can be used to open the image at the camera 55, observe the fire source and the size of the fire, and issue a command to start the first motor 152, the second motor 44 and the third motor 512. When the first motor 152 is started, the first bevel gear 153 drives the first bevel gear plate 154 to rotate above the base 13, so that the sleeve 16 drives the inclined frame 2, the horizontal frame 3 and the cylinder seat 41 to move synchronously, so that the cylinder seat 41 is close to the position above the fire source, and then the second motor 44 drives the second bevel gear 43 to rotate above the base 13. The second bevel gear disc 42 rotates at the bottom of the cylinder seat 41, and when the second bevel gear disc 42 rotates, it drives the connecting cylinder 45 and the supporting frame 46 to move synchronously, so that the monitoring structure 5 is turned and pushed out to further approach the fire source position, and then the push rod 513 is rotated under the action of the third motor 512, and the push rod 513 pushes the first connecting rod 514, the first supporting rod 515, the second connecting rod 516 and the second supporting rod 517 to form a quadrilateral structure to fold, so that the second supporting rod 517 drives the bin seat 52 to be pushed outward, thereby making the liquid outlet valve 54 close to the top of the fire source, and then the solenoid valve in the liquid outlet valve 54 is opened, and the pressurized water flows through the liquid outlet valve to the fire source, reducing the impact of excessive water discharge on the surrounding environment;

[0040] Third, when the fire source is relatively large, the solenoid valve in the deluge valve body 12 is opened, and the hydraulic alarm sounds an alarm, so that the deluge valve body 12 is opened, and the pressurized water flows into the system side pipe network, forming a wet sprinkler system.

[0041] The present invention optimizes the arrangement of a valve body structure 1, on which a support structure 4 is connected through an inclined frame 2 and a horizontal frame 3, and a monitoring structure 5 is connected at the bottom of the support structure 4, and a steering assembly 15 on the valve body structure 1 drives a sleeve 16 to rotate, so that the support structure 4 and the monitoring structure 5 move synchronously with the rotation of the inclined frame 2 and the horizontal frame 3, and under the action of the support structure 4, the monitoring structure 5 is further turned and displaced, so as to observe the surrounding environment through the monitoring structure 5, and when the valve body structure 1 sounds an alarm, the push assembly 51 on the monitoring structure 5 moves to drive the bin seat 52 to move out laterally, so that the liquid outlet valve 54 is close to the top of the fire source, and then the solenoid valve in the liquid outlet valve 54 is opened to spray water on the fire, so as to reduce the influence of excessive water discharge on the surrounding environment, and improve the accuracy and flexibility of the alarm valve; a temperature sensor and a flow sensor are arranged inside the wet alarm valve body 11 and the shower valve body 12, and the temperature and water flow inside the wet alarm valve body 11 and the shower valve body 12 are measured to provide a more Comprehensive monitoring capabilities, arc-shaped through grooves are opened in the middle of the front and rear sides of the sleeve 16, and the two arc-shaped through grooves are respectively arranged on the outside of the water inlet and the water outlet on both sides of the wet alarm valve body 11, reducing the limit generated and ensuring the stability of the sleeve 16 rotation, an inclined tube is arranged on the right side of the interior of the warehouse seat 52, and the two sides of the inclined tube are respectively connected to the hose 53 and the liquid outlet valve 54, so that the water in the tube body 47 can be discharged into the liquid outlet valve 54 through the hose 53, and a processor and a wireless transmission module are arranged on the left side of the interior of the warehouse seat 52 for transmitting signal information to an external device, and the monitoring signal can be received by the external device for remote monitoring; the first connecting rod 514, the first support rod 515, the second connecting rod 516 and the second support rod 517 are connected to form a quadrilateral structure on the inside, so that the quadrilateral structure can be folded and then drive the second support rod 517 to be pushed outward, and two positioning blocks 518 are arranged, and are respectively located in the middle of the right side and the bottom side of the second support rod 517, which play a supporting and positioning role to ensure the stability of the installation of the warehouse seat 52.

[0042] The above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pre-action alarm valve, characterized in that: The structure comprises a valve body structure (1), an inclined frame (2), a horizontal frame (3), a support structure (4) and a monitoring structure (5); the top side of the right part of the valve body structure (1) is fixedly connected to the horizontal frame (3), and the bottom side of the right part of the valve body structure (1) is fixed to the inclined frame (2); the other side of the inclined frame (2) is fixed to the horizontal frame (3); the other end of the horizontal frame (3) is connected to the support structure (4); the bottom of the support structure (4) is connected to the monitoring structure (5); the valve body structure (1) comprises a wet alarm valve body (11) connected to both sides of an external water supply channel, a shower valve body (12) arranged on the top side of the wet alarm valve body (11), a base (13) fastened to the bottom side of the wet alarm valve body (11), and a base (13) integrally formed on the base. (13) a support foot (14) on the outer surface of the support foot (14), a steering assembly (15) installed on one side of the top of the support foot (14), and a sleeve (16) connected to the right side of the top of the steering assembly (15), wherein the sleeve (16) is wrapped around the outer surface of the wet alarm valve body (11), and the upper and lower sides of the right part of the sleeve (16) are respectively fixed to the cross frame (3) and the inclined frame (2); the steering assembly (15) includes a mounting seat (151) fixed to the support foot (14) at the bottom, a first motor (152) fastened to the top side of the mounting seat (151), a first bevel gear (153) connected to the right output end of the first motor (152), and a first bevel gear (154) meshed with the bottom of the first bevel gear (153), wherein the first bevel gear (151) The bottom of the first bevel gear (154) is rotatably connected to the base (13), and the top of the first bevel gear (154) is connected to the sleeve (16); the supporting structure (4) includes a cylinder seat (41) fixed to the left side of the horizontal frame (3), a second bevel gear (42) rotatably connected to the bottom of the cylinder seat (41), a second bevel gear (43) meshed with the left side of the top of the second bevel gear (42), a second motor (44) connected to the middle of the left side of the second bevel gear (43), a connecting cylinder (45) fixed to the middle side of the bottom of the second bevel gear (42), a supporting frame (46) fixedly connected to the left side of the connecting cylinder (45), a pipe body (47) fixed to the middle side of the bottom of the connecting cylinder (45), and a support (48) fixed to the left end of the pipe body (47), wherein the support (48) The left side is fastened to the support frame (46), the top of the second motor (44) is fastened to the cross frame (3), the left side of the bottom of the tube body (47) is connected to the monitoring structure (5), the monitoring structure (5) comprises a push assembly (51) whose top is fixed to the support frame (46), a bin seat (52) connected to the right end of the push assembly (51), a hose (53) arranged at the middle side of the top of the bin seat (52), a liquid outlet valve (54) embedded in the middle of the right side of the bin seat (52), and a camera (55) arranged at the top of the right side of the bin seat (52), the top end of the hose (53) is connected to the tube body (47), an inclined tube is arranged on the right side of the inside of the bin seat (52), and the two sides of the inclined tube are respectively connected to the hose (53) and the liquid outlet valve (54);The pushing assembly (51) comprises a stand (511) whose top is fixed to the support frame (46), a third motor (512) fastened to the lower right side of the rear part of the stand (511), a push rod (513) connected to the front output end of the third motor (512), a first connecting rod (514) connected to the top end of the push rod (513), a first support rod (515) rotatably connected to the bottom end of the first connecting rod (514), a second connecting rod (516) rotatably connected to the bottom end of the first support rod (515), a second support rod (517) rotatably connected to the top end of the second connecting rod (516), and a positioning block (518) fixedly connected to the right side of the second support rod (517). 518), the right side of the positioning block (518) is fastened to the storage seat (52), the push rod (513) is rotatably connected to the bottom side of the interior of the stand (511), the first support rod (515) is rotatably connected to the top side of the interior of the stand (511), the top of the second support rod (517) is rotatably connected to the connection between the push rod (513) and the first connecting rod (514), the first connecting rod (514), the second connecting rod (516) and the second supporting rod (517) are connected to form a quadrilateral structure on the inside, and two positioning blocks (518) are provided, and are respectively located at the middle part and the bottom side of the right side of the second supporting rod (517). ; 2. A pre-action alarm valve according to claim 1, characterized in that: A hydraulic alarm is arranged in the connecting pipeline outside the deluge valve body (12), and a temperature sensor and a flow sensor are arranged inside the wet alarm valve body (11) and the deluge valve body (12).

3. A pre-action alarm valve according to claim 1, characterized in that: The sleeve (16) is provided with arc-shaped through grooves in the middle of both the front and rear sides, and the two arc-shaped through grooves are respectively arranged outside the water inlet and the water outlet on both sides of the wet alarm valve body (11).

4. A pre-action alarm valve according to claim 1, characterized in that: The top of the rear side of the tube body (47) is connected to an external water supply channel via a flexible tube.

5. A pre-action alarm valve according to claim 1, characterized in that: A processor and a wireless transmission module are arranged on the left side inside the compartment seat (52) for transmitting signal information to an external device.

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