Fire-fighting spray header detection device and detection method

Abstract

A fire sprinkler head detection device disclosed by the present invention comprises a test box and two support plates, the two support plates are fixedly connected to the left and right ends of the lower surface of the test box respectively, the upper and lower ends of the test box are provided with a pressure pipe and a funnel respectively, and the lower surface of the pressure pipe is provided with a plurality of mounting screw holes from left to right at equal intervals. A plurality of temperature controllers are installed on the front side of the upper surface of the test box from left to right, a plurality of alarm lamps are further installed on the front side of the upper surface of the test box from left to right, and the alarm lamps give out light to remind workers that the fire sprinkler is qualified. A plurality of heating mechanisms are mounted on the rear side of the inner cavity of the test box from left to right, and the heating mechanisms reach the specified temperature under the temperature control condition of the temperature controller. The fire-fighting sprinkler head detection device can detect various fire-fighting sprinkler heads, is high in temperature rise speed, improves the detection efficiency, has a fire-fighting water purification function, can reuse fire-fighting water, and achieves the effect of saving water resources.

Description

Technical Field

[0001] The present invention relates to the field of fire protection technology, and in particular to a fire sprinkler head detection device and a detection method. Background Art

[0002] Fire sprinkler heads are used in fire sprinkler systems. When a fire breaks out, water is released through the sprinkler's deflector to extinguish the fire. These sprinklers are categorized as pendent, upright, standard, and sidewall. They primarily consist of a sprinkler, a liquid-filled thermosensitive glass bulb, a pipe plug, and a pipe. The thermosensitive glass bulb contains a solution such as kerosene or ether. When the kerosene expands due to heat and bursts the bulb, the sprinkler releases water, extinguishing the fire.

[0003] Glass balls come in a variety of colors, and the operating temperatures are: red 68°C, yellow 79°C, green 93°C, and blue 141°C. In order to ensure that the fire sprinkler heads can be used normally, the operating temperature of the fire sprinkler heads needs to be detected through a detection device. When the detection box heats up, due to the large space and slow heating, it can only detect the same type of fire sprinkler heads. The detection is not flexible enough and the efficiency is low. Broken glass fragments mixed in the water can easily damage the water pump or other related components. When the glass ball breaks, kerosene falls into the water, causing water pollution, resulting in the inability to reuse fire water and wasting water resources. Summary of the Invention

[0004] The purpose of the present invention is to provide a fire sprinkler head detection device and detection method, so as to at least solve the problems of the prior art fire sprinkler head detection type being single, glass fragments not being collected, and oil-water separation not being achieved.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a fire sprinkler head detection device, comprising a test box and two support plates, the two support plates being fixedly connected to the left and right ends of the lower surface of the test box, respectively, a pressure tube and a funnel being installed at the upper and lower ends of the test box, a plurality of mounting screw holes being equidistantly provided on the lower surface of the pressure tube from left to right, and the fire sprinkler head being installed through the mounting screw holes, a plurality of thermostats being installed on the front side of the upper surface of the test box from left to right, a plurality of alarm lights being also installed on the front side of the upper surface of the test box from left to right, and the alarm lights being illuminated to remind the staff that the fire sprinkler head is a qualified product, a plurality of heating mechanisms being installed on the rear side of the inner cavity of the test box from left to right, and the heating mechanism being allowed to reach a specified temperature under the temperature control condition of the thermostat, a water supply mechanism being installed at the bottom of the funnel, and the water supply mechanism being connected to the pressure tube through a water pipe, and a controller electrically connected to the alarm light being installed on the left side wall of the test box; The fire sprinkler head detection device further includes a display, which is electrically connected to the controller and has an integrated intelligent analysis module for analyzing temperature response delay.

[0006] Preferably, the heating mechanism includes a lifting assembly installed on the rear side of the inner cavity of the test box, the front end of the lifting assembly is connected to a sleeve through a pin shaft, the inner wall of the sleeve is installed with a heating plate electrically connected to the thermostat, and the fire sprinkler head is heated by the heating plate, a horizontal plate is installed at the bottom of the sleeve, a temperature sensing probe electrically connected to the thermostat is installed on the left side of the upper surface of the horizontal plate, the temperature sensing probe converts the temperature signal into an electrical signal and feeds back to the thermostat, and the thermostat controls the start and stop of the heating plate, thereby controlling the heating temperature of the fire sprinkler head; the right side of the upper surface of the horizontal plate is connected to a water tank through a pin shaft, a counterweight is installed at the right end of the water tank, and the water tank rotates clockwise under the action of the gravity of the counterweight, a pressure-sensitive sensor electrically connected to the controller is installed at the right end of the lower surface of the horizontal plate, when the water tank rotates counterclockwise, the counterweight triggers the pressure-sensitive sensor, and the controller receives a signal to energize the alarm light, and a net cylinder is screwed to the bottom of the outer wall of the sleeve, and the broken glass ball fragments on the fire sprinkler head are collected through the net cylinder; The temperature of the heating plate is controlled and heated by the thermostat and the temperature sensing probe, and fire sprinkler heads of various specifications can be tested.

[0007] Preferably, the volume of the left side of the water storage tank cavity is larger than that of the right side.

[0008] The cam is secured to the left of the control stand and has a first end secured thereto and a second end secured to the cam face for locking the control stand in position relative to the first gear in the control stand.

[0009] Preferably, the sleeve is located directly below the mounting screw hole.

[0010] Preferably, the water supply mechanism includes a water tank installed at the bottom of the funnel, a self-priming pump electrically connected to the controller is installed on the left wall of the water tank, the liquid inlet of the self-priming pump is connected to the outer wall of the water tank, and the liquid outlet of the self-priming pump is connected to the left end of the pressure pipe through a water pipe. Under the suction of the self-priming pump, the fire water in the water tank is transported to the pressure pipe, a motor electrically connected to the controller is installed on the lower surface of the water tank, and a stirring assembly is installed at the output end of the motor. A number of magnetic Janus microspheres are placed in the water tank, and electromagnets electrically connected to the controller are installed on the top of the left and right side walls of the water tank; The electromagnet generates a magnetic field, changes the direction of kerosene movement, and absorbs kerosene droplets through the magnetic Janus microspheres.

[0011] Preferably, the stirring assembly includes an inner rod installed at the output end of the motor, the outer wall of the inner rod is sleeved with an outer rod, the bottom end of the outer wall of the outer rod is installed with a tray, the surface of the tray is provided with a mesh, when the tray rises, the magnetic Janus microspheres can be dragged out of the water tank, stirring rods are installed on both sides of the upper surface of the tray, when the motor drives the inner rod to rotate, the stirring rods can make a circular motion, the stirring rods stir the fire water, the top of the outer rod is screwed with a positioning bolt, when the positioning bolt is engaged with the inner rod thread, the outer rod is positioned.

[0012] Preferably, the outer wall of the inner rod is in the shape of a regular polygon.

[0013] The fire sprinkler head detection device and detection method proposed by the present invention have the following beneficial effects: 1. The present invention uses a lifting assembly to raise or lower the sleeve so that the heating plate is placed on the fire sprinkler head. The temperature of the heating plate is controlled in cooperation with the thermostat and the temperature sensing probe to heat the fire sprinkler head to the operating temperature. When the fire sprinkler head is activated, fire water is sprayed from the fire sprinkler head, and the fire water in the water storage tank gradually increases. Gravity also gradually shifts to the left until the water storage tank rotates counterclockwise. The counterweight triggers the pressure-sensitive sensor, and the controller makes the alarm light light up to remind the staff that the fire sprinkler head can operate normally at the preset temperature. The generated glass ball fragments are collected by the mesh tube. Therefore, it is possible to perform detection of various fire sprinkler heads, with a fast heating speed and improved detection efficiency. 2. The present invention generates a magnetic field around the water tank through an electromagnet. The motor drives the stirring rod to rotate, stirring the fire water. The oil droplets move toward the direction of the magnetic field. The magnetic Janus microspheres absorb the oil droplets and separate the oil and water. Therefore, the fire water has the function of purifying the fire water. The fire water can be reused, which saves water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 This is the main cross-sectional view of the pressure pipe; Figure 3This is the exploded diagram of the heating mechanism; Figure 4 Schematic diagram of the water storage tank structure; Figure 5 It is a right side cross-sectional view of the lifting assembly; Figure 6 This is a schematic diagram of the water supply mechanism structure; Figure 7 This is a main cross-sectional view of the water supply organization; Figure 8 Schematic diagram of the stirring component structure.

[0015] Figure: 1, test box; 2, support plate; 3, funnel; 4, pressure tube; 5, mounting screw hole; 6, thermostat; 7, alarm light; 8, heating mechanism; 9, water supply mechanism; 10, controller; 81, lifting assembly; 82, sleeve; 83, heating plate; 84, horizontal plate; 85, temperature probe; 86, water tank; 87, counterweight; 88, pressure sensor; 89, mesh cylinder; 811, base plate; 812, rotating shaft; 81 3. Connecting rod; 814. First gear; 815. Second gear; 816. Limiting groove; 817. Limiting pin; 818. Positioning pin; 819. Tension spring; 8110. Protective cover; 91. Water tank; 92. Self-priming pump; 93. Motor; 94. Stirring assembly; 95. Magnetic Janus microspheres; 96. Electromagnet; 941. Inner rod; 942. Outer rod; 943. Tray; 944. Stirring rod; 945. Positioning bolt. DETAILED DESCRIPTION

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] See also Figure 1-8, the present invention provides a technical solution: a fire sprinkler head detection device, comprising a test box 1 and two support plates 2, the two support plates 2 are fixedly connected to the left and right ends of the lower surface of the test box 1, and a pressure pipe 4 and a funnel 3 are installed at the upper and lower ends of the test box 1 respectively. A plurality of mounting screw holes 5 are equidistantly provided on the lower surface of the pressure pipe 4 from left to right, and the fire sprinkler head is installed through the mounting screw holes 5. A plurality of thermostats 6 are installed on the front side of the upper surface of the test box 1 from left to right, and a plurality of alarm lights 7 are also installed on the front side of the upper surface of the test box 1 from left to right. The alarm lights 7 are illuminated to remind the staff that the fire sprinkler head is a qualified product. A plurality of heating mechanisms 8 are installed on the rear side of the inner cavity of the test box 1 from left to right. Under the temperature control condition of the thermostat 6, the heating mechanism 8 reaches a specified temperature. A water supply mechanism 9 is installed at the bottom of the funnel 3, and the water supply mechanism 9 is connected to the pressure pipe 4 through a water pipe. A controller 10 electrically connected to the alarm light 7 is installed on the left wall of the test box 1; The fire sprinkler head detection device further includes a display 11, which is electrically connected to the controller 10, and the display 11 is integrated with an intelligent analysis module for analyzing temperature response delay; When the thermostat 6 receives the action temperature set by the user and starts the heating plate 83, the controller 10 can record the initial time point; when the pressure-sensitive sensor 88 is triggered (the water tank 86 rotates counterclockwise), the controller 10 records the end time point; the time difference between the two is the "temperature response delay", which can be transmitted to the intelligent analysis module through the controller 10 for calculation; the controller 10 records the timestamps of the heating start and the water spraying action (temperature response delay), and the display 11 can generate the temperature change curve and response time point of the heating process, which is convenient for technicians to intuitively analyze.

[0018] As a preferred solution, further, the heating mechanism 8 includes a lifting component 81 installed on the rear side of the inner cavity of the test box 1, and the front end of the lifting component 81 is connected to a sleeve 82 through a pin shaft. The sleeve 82 is located directly below the mounting screw hole 5. When the sleeve 82 is sleeved on the fire sprinkler head, the fire sprinkler head is in the center of the heating plate 83, so that the fire sprinkler head is evenly heated. The inner wall of the sleeve 82 is installed with a heating plate 83 electrically connected to the thermostat 6, and the fire sprinkler head is heated by the heating plate 83. A horizontal plate 84 is installed at the bottom of the sleeve 82, and a temperature sensing probe 85 electrically connected to the thermostat 6 is installed on the left side of the upper surface of the horizontal plate 84. The temperature sensing probe 85 converts the temperature signal into an electrical signal and feeds it back to the thermostat 6. The thermostat 6 controls the start and stop of the heating plate 83, thereby controlling the heating temperature of the fire sprinkler head. A water tank 86 is connected to the right side of the upper surface of 84 through a pin shaft. The volume of the left side of the inner cavity of the water tank 86 is larger than that of the right side. When the fire water gradually enters the water tank 86, the gravity of the water tank 86 gradually moves to the left, and finally the water tank 86 rotates counterclockwise under the action of the gravity of the fire water, allowing the fire water in the water tank 86 to pour out. A counterweight block 87 is installed at the right end of the water tank 86, and the water tank 86 rotates clockwise under the action of the gravity of the counterweight block 87. A pressure-sensitive sensor 88 electrically connected to the controller 10 is installed at the right end of the lower surface of the horizontal plate 84. When the water tank 86 rotates counterclockwise, the counterweight block 87 triggers the pressure-sensitive sensor 88, and the controller 10 receives the signal to energize the alarm light 7. A mesh tube 89 is screwed to the bottom of the outer wall of the sleeve 82, and the broken glass ball fragments on the fire sprinkler head are collected through the mesh tube 89.

[0019] As a preferred solution, further, the lifting assembly 81 includes a base plate 811 installed on the rear side of the inner cavity of the test box 1, and the upper and lower ends of the right side wall of the base plate 811 are equipped with a rotating shaft 812 that can rotate around its own axis through bearings. The left and right ends of the rotating shaft 812 are respectively equipped with a connecting rod 813 and a first gear 814. The front end of the connecting rod 813 is connected to the outer wall of the sleeve 82 through a pin shaft. The middle part of the right side wall of the base plate 811 is connected to the second gear 815 that is meshed with the first gear 814 through a pin shaft. The outer wall of the second gear 815 is provided with a limiting groove 816. The right side wall of the base plate 811 is installed There is a limit pin 817 inserted into the inner cavity of the limit groove 816, and the rotation angle of the second gear 815 is constrained by the limit pin 817. A positioning pin 818 is installed on the outer edge of the outer wall of the second gear 815. A tension spring 819 is installed on the outer wall of the positioning pin 818 and the limit pin 817. Under the tension of the tension spring 819, the second gear 815 is pulled, and the second gear 815 can be blocked by the limit pin 817 to stay in the current position. A protective cover 8110 is installed on the right side wall of the base plate 811 to protect the transmission of the first gear 814 and the second gear 815 from interference from the external environment.

[0020] As a preferred embodiment, further, the water supply mechanism 9 includes a water tank 91 installed at the bottom of the funnel 3, and a self-priming pump 92 electrically connected to the controller 10 is installed on the left side wall of the water tank 91. The liquid inlet of the self-priming pump 92 is connected to the outer wall of the water tank 91, and the liquid outlet of the self-priming pump 92 is connected to the left end of the pressure pipe 4 through a water pipe. Under the suction of the self-priming pump 92, the fire water in the water tank 91 is transported to the pressure pipe 4. A motor 93 electrically connected to the controller 10 is installed on the lower surface of the water tank 91, and a stirring assembly 94 is installed at the output end of the motor 93. A number of magnetic Janus microspheres 95 are placed in the water tank 91, and electromagnets 96 electrically connected to the controller 10 are installed on the top of the left and right side walls of the water tank 91.

[0021] As a preferred embodiment, further, the stirring assembly 94 includes an inner rod 941 installed at the output end of the motor 93, and the outer wall of the inner rod 941 is sleeved with an outer rod 942. The outer wall of the inner rod 941 is in the shape of a regular polygon, which limits the outer rod 942 and allows the inner rod 941 and the outer rod 942 to rotate synchronously. A tray 943 is installed at the bottom end of the outer wall of the outer rod 942, and the surface of the tray 943 is provided with a mesh. When the tray 943 rises, the magnetic Janus microspheres 95 can be dragged out of the water tank 91. Stirring rods 944 are installed on both sides of the upper surface of the tray 943. When the motor 93 drives the inner rod 941 to rotate, the stirring rod 944 can make a circular motion, and the stirring rod 944 stirs the fire water. A positioning bolt 945 is screwed on the top of the outer rod 942, and the outer rod 942 is positioned when the positioning bolt 945 is threaded with the inner rod 941.

[0022] Working principle: Step 1: Tighten the fire sprinkler head onto the mounting screw hole 5 and move the sleeve 82 up and down, so that the connecting rod 813 can pull the first gear 814 to rotate. Under the condition that the first gear 814 and the second gear 815 rotate, the positioning pin 818 rotates. The tension of the tension spring 819 can pull the positioning pin 818 to move toward the direction close to the limit pin 817. The second gear 815 stops under the mutual obstruction of the limit pin 817 and the limit groove 816. The sleeve 82 can be fixed after moving up and down, so that the heating plate 83 can be moved close to or away from the fire sprinkler head. Step 2: The thermostat 6 is set according to the fire sprinkler head operating temperature. The heating plate 83 is heated. The temperature sensor 85 converts the temperature signal into an electrical signal and feeds it back to the thermostat 6. When the heating plate 83 reaches the fire sprinkler head operating temperature, the kerosene in the fire sprinkler head glass ball expands. The glass ball cannot withstand the pressure and breaks, causing the fire sprinkler head to operate. Step 3: The self-priming pump 92 introduces the fire water in the water tank 91 into the pressure pipe 4 under its own suction force. The fire water is sprayed out from the fire sprinkler head. The water tank 86 collects the fire water. As the fire water in the water tank 86 increases, gravity gradually shifts to the left. After the water tank 86 is full, the water tank 86 rotates counterclockwise under the action of the fire water's gravity. As the fire water in the water tank 86 pours down, the counterweight 87 triggers the pressure-sensitive sensor 88, which feeds back an electrical signal to the controller 10, causing the alarm light 7 to light up, indicating that the fire sprinkler head can operate at the preset temperature. If the alarm light 7 does not light up, it means that the fire sprinkler head is unqualified. When the thermostat 6 receives the set operating temperature and activates the heating plate 83, the controller 10 can record the initial time point; when the pressure-sensitive sensor 88 is triggered, the controller 10 records the end time point. The time difference between the two is the temperature response delay, which is transmitted to the intelligent analysis module by the controller 10 for calculation. The controller 10 records the timestamps of the heating start and the water spraying action, and the display 11 generates a temperature change curve and response time points during the heating process, thereby predicting the response time of a qualified fire sprinkler head. Step 4: After the fire water in the water tank 86 is drained, the counterweight 87 causes the water tank 86 to rotate due to gravity, and the glass ball fragments are filtered and collected by the mesh tube 89, while the kerosene and fire water fall into the water tank 91; Step 5: When kerosene needs to be separated from firefighting water, the controller 10 activates the motor 93 and the electromagnet 96. The electromagnet 96 generates a magnetic field, and the motor 93 drives the tray 943 and the stirring rod 944 to rotate. The stirring rod 944 stirs the firefighting water. Under the action of the external magnetic field, the stably bound large oil droplets will move toward the direction of the magnetic field. The magnetic Janus microspheres 95 have the characteristics of hydrophilic convex surface and lipophilic concave surface. Their lipophilic grippers can form a good structural fit with the tiny oil droplets in the water, sucking away the kerosene in the firefighting water, allowing the firefighting water to be reused and avoiding water pollution and waste. Step 6: When the magnetic Janus microballs 95 need to be removed, the positioning bolts 945 are unscrewed from the inner rod 941, and the tray 943 is lifted up. The tray 943 allows the fire water to pass through, and the tray 943 drags the magnetic Janus microballs 95 from bottom to top, so that the magnetic Janus microballs 95 can be quickly removed.

[0023] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A fire sprinkler head detection device, comprising a test box (1) and two support plates (2), wherein the two support plates (2) are fixedly connected to the left and right ends of the lower surface of the test box (1), respectively, and characterized in that: The test box (1) is respectively provided with a pressure pipe (4) and a funnel (3) at the upper and lower ends. The lower surface of the pressure pipe (4) is provided with a plurality of mounting screw holes (5) equidistantly from left to right. The fire sprinkler head is installed through the mounting screw holes (5). The front side of the upper surface of the test box (1) is provided with a plurality of thermostats (6) from left to right. The front side of the upper surface of the test box (1) is also provided with a plurality of alarm lights (7) from left to right. The alarm lights (7) are used to illuminate to remind the staff that the fire sprinkler head is a qualified product. The rear side of the inner cavity of the test box (1) is provided with a plurality of heating mechanisms (8) from left to right. Under the temperature control condition of the thermostat (6), the heating mechanism (8) is allowed to reach a specified temperature. The bottom of the funnel (3) is provided with a water supply mechanism (9). The water supply mechanism (9) is connected to the pressure pipe (4) through a water pipe. The left side wall of the test box (1) is provided with a controller (10) electrically connected to the alarm light (7). The fire sprinkler head detection device further comprises a display (11), wherein the display (11) is electrically connected to the controller (10), and the display (11) is integrated with an intelligent analysis module for analyzing temperature response delay.

2. A fire sprinkler head detection device according to claim 1, characterized in that: The heating mechanism (8) includes a lifting assembly (81) installed at the rear side of the inner cavity of the test box (1), the front end of the lifting assembly (81) is connected to a sleeve (82) through a pin shaft, the inner wall of the sleeve (82) is installed with a heating plate (83) electrically connected to the temperature controller (6), and the fire sprinkler head is heated by the heating plate (83), the bottom of the sleeve (82) is installed with a horizontal plate (84), and the left side of the upper surface of the horizontal plate (84) is installed with a temperature probe (85) electrically connected to the temperature controller (6), and the temperature probe (85) converts the temperature signal into an electrical signal and feeds it back to the temperature controller (6), and the temperature controller (6) controls the start and stop of the heating plate (83) to control the fire sprinkler head. The heating temperature is set. The right side of the upper surface of the horizontal plate (84) is connected to a water tank (86) through a pin shaft. A counterweight (87) is installed at the right end of the water tank (86). Under the action of the gravity of the counterweight (87), the water tank (86) rotates clockwise. The right end of the lower surface of the horizontal plate (84) is installed with a pressure-sensitive sensor (88) electrically connected to the controller (10). When the water tank (86) rotates counterclockwise, the counterweight (87) triggers the pressure-sensitive sensor (88). The controller (10) receives the signal and energizes the alarm light (7). The bottom of the outer wall of the sleeve (82) is screwed with a net tube (89). The broken glass ball fragments on the fire sprinkler head are collected through the net tube (89).

3. A fire sprinkler head detection device according to claim 2, characterized in that: The volume of the left side of the inner cavity of the water storage tank (86) is larger than that of the right side.

4. A fire sprinkler head detection device according to claim 3, characterized in that: The lifting assembly (81) includes a base plate (811) installed on the rear side of the inner cavity of the test box (1), and a rotating shaft (812) capable of rotating around its own axis is installed at the upper and lower ends of the right side wall of the base plate (811) through bearings, and a connecting rod (813) and a first gear (814) are installed at the left and right ends of the rotating shaft (812), respectively. The front end of the connecting rod (813) is connected to the outer wall of the sleeve (82) through a pin, and a second gear (815) meshing with the first gear (814) is connected to the middle part of the right side wall of the base plate (811) through a pin, and a limiting groove (816) is provided on the outer wall of the second gear (815), and the right side wall of the base plate (811) is installed with a connecting rod (813) and a first gear (814) meshing with the first gear (814). A limit pin (817) is inserted into the inner cavity (816), and the rotation angle of the second gear (815) is constrained by the limit pin (817). A positioning pin (818) is installed on the outer edge of the outer wall of the second gear (815). A tension spring (819) is installed on the positioning pin (818) and the outer wall of the limit pin (817). The second gear (815) is pulled under the tension of the tension spring (819). The second gear (815) is blocked by the limit pin (817) to stay in the current position. A protective cover (8110) is installed on the right side wall of the base plate (811), and the transmission of the first gear (814) and the second gear (815) is protected from interference from the external environment by the protective cover (8110).

5. A fire sprinkler head detection device according to claim 4, characterized in that: The sleeve (82) is located directly below the mounting screw hole (5).

6. A fire sprinkler head detection device according to claim 5, characterized in that: The water supply mechanism (9) includes a water tank (91) installed at the bottom of the funnel (3), a self-priming pump (92) electrically connected to the controller (10) is installed on the left side wall of the water tank (91), the liquid inlet of the self-priming pump (92) is connected to the outer wall of the water tank (91), and the liquid outlet of the self-priming pump (92) is connected to the left end of the pressure pipe (4) through a water pipe. Under the suction action of the self-priming pump (92), the fire water in the water tank (91) is transported to the pressure pipe (4), a motor (93) electrically connected to the controller (10) is installed on the lower surface of the water tank (91), and a stirring assembly (94) is installed at the output end of the motor (93), a plurality of magnetic Janus microspheres (95) are placed in the water tank (91), and electromagnets (96) electrically connected to the controller (10) are installed on the top of the left and right side walls of the water tank (91).

7. A fire sprinkler head detection device according to claim 6, characterized in that: The stirring assembly (94) includes an inner rod (941) installed at the output end of the motor (93), the outer rod (942) is sleeved on the outer wall of the inner rod (941), and a tray (943) is installed at the bottom end of the outer wall of the outer rod (942). The surface of the tray (943) is provided with mesh holes. When the tray (943) rises, the magnetic Janus microspheres (95) can be dragged out of the water tank (91). Stirring rods (944) are installed on both sides of the upper surface of the tray (943). When the motor (93) drives the inner rod (941) to rotate, the stirring rods (944) can make a circular motion. The stirring rods (944) stir the fire water. A positioning bolt (945) is screwed to the top of the outer rod (942). When the positioning bolt (945) is threadedly engaged with the inner rod (941), the outer rod (942) is positioned.

8. A fire sprinkler head detection device according to claim 7, characterized in that: The outer wall of the inner rod (941) is in the shape of a regular polygon.

9. A method for detecting a fire sprinkler head according to any one of claims 1 to 8, comprising the following steps: Step 1: Tighten the fire sprinkler head onto the mounting screw hole (5), and move the sleeve (82) up and down, so that the connecting rod (813) can pull the first gear (814) to rotate. Under the condition that the first gear (814) and the second gear (815) rotate, the positioning pin (818) is rotated, and the tension of the tension spring (819) can pull the positioning pin (818) to move toward the direction close to the limit pin (817). When the limit pin (817) and the limit groove (816) block each other, the second gear (815) stops. The sleeve (82) can be fixed after moving up and down, thereby allowing the heating plate (83) to approach and move away from the fire sprinkler head; Step 2: The thermostat (6) is set according to the operating temperature of the fire sprinkler head, the heating plate (83) is heated, and the temperature sensor (85) converts the temperature signal into an electrical signal and feeds it back to the thermostat (6), so that the heating plate (83) reaches the operating temperature of the fire sprinkler head. The kerosene in the glass ball of the fire sprinkler head expands, and the glass ball cannot withstand the pressure and breaks, causing the fire sprinkler head to operate; Step 3: The self-priming pump (92) introduces the fire water in the water tank (91) into the pressure pipe (4) under the action of its own suction. The fire water is sprayed out from the fire sprinkler head. The water tank (86) collects the fire water. As the fire water in the water tank (86) increases, the gravity gradually moves to the left. After the water tank (86) is filled, the water tank (86) rotates counterclockwise under the action of the gravity of the fire water. While the fire water in the water tank (86) pours down, the counterweight (87) triggers the pressure-sensitive sensor (88), which feeds back an electrical signal to the controller (10), causing the alarm light (7) to light up, indicating that the fire sprinkler head can operate at the preset temperature. If the alarm light (7) does not light up, it means that the fire sprinkler head is unqualified. When the thermostat (6) receives the set action temperature and starts the heating plate (83), the controller (10) can record the initial time point; when the pressure sensitive sensor (88) is triggered, the controller (10) records the end time point; the time difference between the two is the temperature response delay, which is transmitted to the intelligent analysis module through the controller (10) for calculation; the controller (10) records the timestamps of the heating start and the water spraying action, and the display (11) generates the temperature change curve and response time point of the heating process, so as to be able to predict the response time of a qualified fire sprinkler head; Step 4: After the fire water in the water tank (86) is discharged, the gravity of the counterweight (87) causes the water tank (86) to rotate, and the glass ball fragments are filtered and collected by the mesh tube (89), and the kerosene and fire water fall into the water tank (91); Step 5, when it is necessary to separate kerosene from fire water, the controller (10) starts the motor (93) and the electromagnet (96), the electromagnet (96) generates a magnetic field, the motor (93) drives the tray (943) and the stirring rod (944) to rotate, and the stirring rod (944) stirs the fire water. Under the action of the external magnetic field, the stably combined large oil droplets will move toward the direction of the magnetic field, and the magnetic Janus microspheres (95) have the characteristics of convex hydrophilicity and concave lipophilicity. The lipophilic gripper can form a good structural fit with the tiny oil droplets in the water, absorb the kerosene in the fire water, and allow the fire water to be reused, avoiding water resource pollution and waste; Step 6. When the magnetic Janus microspheres (95) need to be taken out, the positioning bolts (945) are unscrewed from the inner rod (941), and the tray (943) is lifted up. The tray (943) allows the fire water to pass through. The tray (943) drags the magnetic Janus microspheres (95) from bottom to top, and the magnetic Janus microspheres (95) can be quickly taken out.

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