Fire sprinkler sealing performance detection device

Abstract

A fire sprinkler sealing performance detection device disclosed by the present invention comprises a detection table, two groups of placement mechanisms, a ventilation mechanism and a sealing mechanism, the placement mechanisms are slidably arranged on the detection table, a fixing frame is arranged on the detection table, and the sealing mechanism and the ventilation mechanism are respectively installed on the fixing frame and the detection table according to the up-down distribution. A driving assembly is arranged on the detection table, the driving assembly is used for driving the two sets of placement mechanisms to horizontally slide in the same direction and enabling one set of placement mechanism to slide between the sealing mechanism and the ventilation mechanism, and the placement mechanism comprises a placement plate and a pulley. The infrared sensor detects the permeation amount of carbon dioxide to judge the sealing performance, marks are made on the fire-fighting sprayers with poor sealing performance, meanwhile, a plurality of fire-fighting sprayers can be detected at a time, the operation is convenient and simple, and the detection efficiency is high.

Description

Technical Field

[0001] The invention discloses a fire sprinkler head sealing detection device, belonging to the technical field of sealing detection. Background Art

[0002] Fire sprinkler heads are used in fire sprinkler systems and are divided into pendent sprinkler heads, upright sprinkler heads, ordinary sprinkler heads, side wall sprinkler heads, etc. Figure 1 As shown, the main structure of the fire sprinkler includes a sprinkler body 4, a plug 3, a glass bulb 2 and a sprinkler 1, wherein the sprinkler 1 is fixed to the sprinkler body 4 by bolts, one end of the bolts abuts against the glass bulb 2, and the plug 3 seals the sprinkler body 4. When a fire occurs, the glass bulb 2 automatically breaks after reaching a predetermined temperature range, causing the plug 3 to fall, and the water or flame-retardant gas in the pipeline flows out through the sprinkler body 4, and then diffused by the sprinkler 1 to achieve the effect of extinguishing the fire. After the fire sprinkler is produced, it is necessary to detect the sealing between the sprinkler body 4 and the plug 3. When the existing detection device detects the fire sprinkler, it is necessary to manually fix a single fire sprinkler first, and then pass water of a certain pressure to one end of the fire sprinkler. By observing the water leakage effect, the quality of the fire sprinkler sealing can be judged. In this way, not only the detection operation is cumbersome, but also the detection efficiency is not high. At the same time, the detection by passing water will cause certain waste and affect the neatness of the detection device. Summary of the invention

[0003] The purpose of the present invention is to solve the problems in the prior art and to provide a fire sprinkler sealing detection device.

[0004] The present invention achieves the above-mentioned purpose through the following technical scheme: a fire sprinkler sealing detection device, including a detection platform, a placement mechanism, a ventilation mechanism and a sealing mechanism. The placement mechanism is provided with two groups and is slidably arranged on the detection platform. A fixing frame is provided on the detection platform. The sealing mechanism and the ventilation mechanism are respectively installed on the fixing frame and the detection platform according to an upper and lower distribution. A driving component is provided on the detection platform. The driving component is used to drive the two groups of placement mechanisms to slide horizontally in the same direction, and let one group of placement mechanisms slide between the sealing mechanism and the ventilation mechanism. The placement mechanism includes a placement plate and a pulley. The placement plate has a plurality of grooves for installing fire sprinklers. The pulley is rotatably installed on the bottom of the placement plate. The ventilation mechanism includes a first movable plate, a first power component, an air inlet pipe and an air guide pipe. The first power component is installed on The detection table is used to drive the first movable plate to rise and fall vertically, an air guide channel is arranged in the first movable plate, the number of the air guide tubes is the same as the number of the grooves, and one end of the air guide tube and the air inlet tube is connected with the air guide channel, the sealing mechanism comprises a first movable plate, a sealing cylinder, an infrared sensor, a marking assembly and a second power assembly, the second power assembly is mounted on the fixed frame, and drives the second movable plate to rise and fall vertically, a plurality of the sealing cylinders are arranged and mounted on the fixed frame, the sealing cylinder forms a closed space outside one end of the fire sprinkler when it conflicts with the placement plate, the infrared sensor is mounted on the sealing cylinder, and is used to detect the concentration of carbon dioxide in the closed space, the marking assembly is mounted on the sealing cylinder, and when the concentration of carbon dioxide in the closed space exceeds a preset value, the marking assembly marks the surface of the fire sprinkler.

[0005] Preferably, the marking assembly includes a sliding rod, a first spring, an identification rod, a movable card and an electromagnetic induction component. A fixed seat is installed on the sealing cylinder, the sliding rod is vertically slidably arranged in the fixed seat, and an annular groove is arranged on the sliding rod. One end of the sliding rod extends out of the outside of the fixed seat, and the other end is fixedly connected to the identification rod. A boss is arranged in the sealing cylinder, and the identification rod is slidably arranged in the boss. The fixed seat has a sliding groove for the movable card to slide horizontally, and one end of the movable card has a first iron block. The electromagnetic induction component is installed on the outside of the fixed seat corresponding to the first iron block. The electromagnetic induction component is coupled to an infrared sensor, and when the carbon dioxide concentration in the confined space exceeds a preset value, the infrared sensor sends an electrical signal to control the electromagnetic induction component to be energized. After being energized, the electromagnetic induction component generates an electromagnetic adsorption force on the first iron block. The two ends of the first spring respectively conflict with the fixed seat and the sliding rod, and the first spring applies a force to the sliding rod to approach the sealing cylinder.

[0006] Preferably, the movable clamping component includes a movable clamping block, a connecting rod and a second spring, the movable clamping block, the connecting rod and the first iron block are fixedly connected by bolts, the second spring is sleeved on the outside of the connecting rod and applies a force to the movable clamping block close to the sliding rod, one end of the movable clamping block has a recess that cooperates with the annular groove, and the electromagnetic induction component includes an induction coil and an iron core, and the induction coil is wound around the outside of the iron core.

[0007] Preferably, a reset member is also provided between the fixed frame and the sliding rod, the reset member includes a magnetic block and a second iron block, the second iron block is fixed to the sliding rod by bolts, the magnetic block is fixed to the fixed frame directly above the second iron block, and the sliding rod has an annular bulge at the installation position corresponding to the first spring.

[0008] Preferably, a movable seal is also provided on the placement plate, and the movable seal includes a sealing ring, a limiting bolt and a third spring. The placement plate is provided with a recessed groove, and the sealing ring is slidably arranged in the recessed groove. One end of the limiting bolt passes through the placement plate and is fixedly connected to the sealing ring. The third spring is sleeved on the outside of the limiting bolt, and the two ends of the third spring respectively contact the placement plate and the sealing ring. The third spring is compressed after one end of the sealing tube contacts the sealing ring.

[0009] Preferably, the driving assembly includes a motor, a conveyor belt and a transmission shaft. The conveyor belt is provided in two groups and is installed on the detection table through the transmission shaft. The output shaft of the motor is fixedly connected to one of the transmission shafts, and a fixed block is fixedly installed between the placement plate and the conveyor belt.

[0010] Preferably, the first power assembly and the second power assembly are cylinders, and the pistons of the cylinders are fixedly connected to the first movable plate or the second movable plate.

[0011] Compared with the prior art, the present invention has the following beneficial effects: By setting a placement mechanism, a ventilation mechanism and a sealing mechanism, multiple fire sprinkler heads can be placed on the two groups of placement mechanisms, and moved between the ventilation mechanism and the sealing mechanism under the drive of the driving assembly. The upper and lower ends of the fire sprinkler heads are held by the sealing mechanism and the ventilation mechanism, and then carbon dioxide gas is introduced into one end of the fire sprinkler heads. The infrared sensor detects the concentration of carbon dioxide on the outside of the other end of the fire sprinkler heads. When the carbon dioxide concentration exceeds the preset value, the identification assembly will mark the fire sprinkler heads, thereby completing the entire detection process. The operation is simple and convenient, and the detection and manual display actions can be carried out simultaneously, which greatly improves the detection efficiency. At the same time, the use of carbon dioxide detection will not cause pollution and waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of a fire sprinkler in the prior art; Figure 2 It is a structural schematic diagram of a fire sprinkler sealing detection device of the present invention; Figure 3 It is a structural schematic diagram of the placement mechanism in the present invention; Figure 4 It is a structural schematic diagram of the ventilation mechanism in the present invention; Figure 5 It is a structural schematic diagram of the sealing mechanism in the present invention; Figure 6 It is a schematic diagram of the structure of the placement mechanism, the ventilation mechanism and the sealing mechanism in the present invention; Figure 7 It is a schematic diagram of the internal structure of the sealing cylinder and the fixing seat in the present invention; Figure 8 It is a schematic diagram of the structure of the sliding rod and the movable clamp in the present invention; Fig. 9 for Figure 6 A partial enlarged view of the middle A; Figure numerals: 1, sprinkler; 2, glass bulb; 3, plug; 4, nozzle body; 5, ventilation mechanism; 6, test bench; 7, transmission shaft; 8, motor; 9, conveyor belt; 10, placement mechanism; 11, magnetic block; 12, sealing mechanism; 13, fixed frame; 14, placement plate; 15, pulley; 16, fixed block; 17, air guide tube; 18, first power assembly; 19, air intake pipe; 20, first movable plate; 21, second power assembly; 22, Sealing cylinder; 23. second movable plate; 24. infrared sensor; 25. fixing seat; 26. marking rod; 27. electromagnetic induction element; 28. second iron block; 29. ​​sliding rod; 30. movable clamping member; 31. first iron block; 32. second spring; 33. first spring; 34. movable clamping block; 35. boss; 36. annular convexity; 37. connecting rod; 38. annular groove; 39. third spring; 40. sealing ring; 41. countersunk groove; 42. limiting bolt. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0014] like Figure 1-Figure 9As shown, a fire sprinkler sealing detection device includes a detection platform 6, a placement mechanism 10, a ventilation mechanism 5 and a sealing mechanism 12. The placement mechanism 10 is provided with two groups and is slidably arranged on the detection platform 6. A fixing frame 13 is provided on the detection platform 6. The sealing mechanism 12 and the ventilation mechanism 5 are respectively installed on the fixing frame 13 and the detection platform 6 according to an upper and lower distribution. A driving component is provided on the detection platform 6. The driving component is used to drive the two groups of placement mechanisms 10 to slide horizontally in the same direction, and let one group of placement mechanisms 10 slide between the sealing mechanism 12 and the ventilation mechanism 5. The placement mechanism 10 includes a placement plate 14 and a pulley 15. The placement plate 14 has a plurality of grooves for installing fire sprinklers. The pulley 15 is rotatably installed at the bottom of the placement plate 14. The ventilation mechanism 5 includes a first movable plate 20, a first power component 18, an air inlet pipe 19 and an air guide pipe 17. The first power component 18 is installed on the detection platform 6 and is used to drive the first movable plate 20 to rise and fall vertically. The first movable plate 20 An air guide channel is arranged inside, the number of air guide pipes 17 is the same as the number of grooves, and one end of the air guide pipe 17 and the air inlet pipe 19 are connected to the air guide channel. The sealing mechanism 12 includes a first movable plate 20, a sealing cylinder 22, an infrared sensor 24, a marking assembly and a second power assembly 21. The second power assembly 21 is installed on the fixing frame 13 and drives the second movable plate 23 to rise and fall vertically. There are multiple sealing cylinders 22 and they are installed on the fixing frame 13. When the sealing cylinder 22 conflicts with the placement plate 14, a closed space is formed on the outer side of one end of the fire sprinkler. The infrared sensor 24 is installed on the sealing cylinder 22 and is used to detect the concentration of carbon dioxide in the closed space. The marking assembly is installed on the sealing cylinder 22, and when the concentration of carbon dioxide in the closed space exceeds a preset value, the marking assembly marks the surface of the fire sprinkler. The first power assembly 18 and the second power assembly 21 are cylinders, and the pistons of the cylinders are fixedly connected to the first movable plate 20 or the second movable plate 23.

[0015] The marking assembly includes a sliding rod 29, a first spring 33, an identification rod 26, a movable clamp 30 and an electromagnetic induction member 27. A fixed seat 25 is installed on the sealing cylinder 22. The sliding rod 29 is vertically slidably arranged in the fixed seat 25, and an annular groove 38 is arranged on the sliding rod 29. One end of the sliding rod 29 extends out of the outside of the fixed seat 25, and the other end is fixedly connected to the identification rod 26. A boss 35 is arranged in the sealing cylinder 22, and the identification rod 26 is slidably arranged in the boss 35. The fixed seat 25 has a slide groove for the movable clamp 30 to slide horizontally, and one end of the movable clamp 30 has a There is a first iron block 31, an electromagnetic induction member 27 is installed on the outer side of the fixed seat 25 corresponding to the first iron block 31, the electromagnetic induction member 27 is coupled to the infrared sensor 24, and when the carbon dioxide concentration in the enclosed space exceeds a preset value, the infrared sensor 24 sends an electrical signal to control the electromagnetic induction member 27 to be energized, and the electromagnetic induction member 27 generates an electromagnetic adsorption force on the first iron block 31 after being energized, and the two ends of the first spring 33 are respectively in contact with the fixed seat 25 and the sliding rod 29, and the first spring 33 applies a force on the sliding rod 29 to approach the sealing cylinder 22. When the sealing cylinder 22 is not When the seal tube 22 contacts the placement plate 14, one end of the movable clamp 30 is embedded in the annular groove 38. At this time, the first spring 33 is in a compressed state, and the identification rod 26 is retracted to the inner side of the boss 35. When the sealing cylinder 22 contacts the placement plate 14, the ventilation mechanism 5 passes carbon dioxide gas to one end of the fire sprinkler. If the sealing performance of the fire sprinkler is not up to standard, carbon dioxide leakage will occur. Since the sealing cylinder 22 forms a sealed space on the outside of the fire sprinkler, when the carbon dioxide concentration in the sealed space exceeds the preset value, the infrared sensor 24 sends a control signal to make the fire sprinkler 20 leak. The electromagnetic induction component 27 is energized to generate an induced magnetic field, thereby generating an electromagnetic adsorption force on the first iron block 31, thereby causing the first iron block 31 and the movable clamp 30 to slide, allowing the movable clamp 30 to slide out of the annular groove 38. At this time, the first spring 33 pushes the sliding rod 29 and the identification rod 26 to slide, allowing the identification rod 26 to extend out of the boss 35 and mark the surface of the sprinkler 1 of the fire sprinkler. In this way, according to the marking on the surface of the fire sprinkler, it is possible to determine whether the sealing of each fire sprinkler meets the standard, wherein the identification rod 26 can be a marking rod that can be color-coded.

[0016] The movable clamping member 30 includes a movable clamping block 34, a connecting rod 37 and a second spring 32. The movable clamping block 34, the connecting rod 37 and the first iron block 31 are fixedly connected by bolts. The second spring 32 is sleeved on the outer side of the connecting rod 37 and applies a force to the movable clamping block 34 close to the sliding rod 29. One end of the movable clamping block 34 has a recess that cooperates with the annular groove 38. The electromagnetic induction member 27 includes an induction coil and an iron core. The induction coil is wound around the outer side of the iron core. The movable clamping block 34 is kept in a state of always resisting the sliding rod 29 under the action of the second spring 32. When the movable clamping block 34 is aligned with the annular groove 38, one end of the movable clamping block 34 is embedded in the annular groove 38, so that the sliding rod 29 cannot slide under the action of the first spring 33, so that the identification rod 26 is in a state of retracting the boss 35. In this embodiment, the sealing cylinder 22, the fixed seat 25, the sliding rod 29 and the movable clamping block 34 are all made of plastic.

[0017] A reset piece is also provided between the fixed frame 13 and the sliding rod 29, and the reset piece includes a magnetic block 11 and a second iron block 28. The second iron block 28 is fixed to the sliding rod 29 by bolts. The magnetic block 11 is fixed to the fixed frame 13 just above the second iron block 28. The sliding rod 29 has a ring protrusion 36 at the installation position corresponding to the first spring 33. When the sealing performance of one of the fire sprinklers is not up to standard, the identification rod 26 will make a mark on its surface. At this time, the identification rod 26 is in a state of extending out of the protrusion 35. In order to facilitate the detection of the next fire sprinkler, the second power assembly 21 drives the second movable plate 23 and the sealing cylinder 22 to move upward until the second iron block 28 conflicts with the magnetic block 11. The magnetic block 11 has a certain adsorption force on the second iron block 28. When the second movable plate 23 and the sealing cylinder 22 are in contact with each other, the magnetic block 11 has a certain adsorption force on the second iron block 28. When the force component 21 drives the second movable plate 23 and the sealing cylinder 22 to move downward for the next detection, the identification rod 26 is on the surface of the protruding boss 35, and the sliding rod 29 remains stationary under the suction of the magnetic block 11. The sliding rod 29 and the fixed seat 25 slide relative to each other, so that the first spring 33 is compressed. When the annular protrusion 36 contacts the fixed seat 25, one end of the movable block 34 just slides to a state aligned with the annular groove 38, and the movable block 34 is embedded in the annular groove 38. At this time, the second iron block 28 is separated from the magnetic block 11, and the sliding rod 29 will not slide under the limiting action of the movable block 34. In this way, the identification rod 26 is in a state of being retracted into the boss 35, so that it is convenient to re-test the sealing of the fire sprinkler.

[0018] The placement plate 14 is also provided with a movable seal, which includes a sealing ring 40, a limiting bolt 42 and a third spring 39. The placement plate 14 is provided with a recessed groove 41, in which the sealing ring 40 is slidably arranged. One end of the limiting bolt 42 passes through the placement plate 14 and is fixedly connected with the sealing ring 40. The third spring 39 is sleeved on the outer side of the limiting bolt 42, and the two ends of the third spring 39 are respectively in contact with the placement plate 14 and the sealing ring 40. The third spring 39 is in contact with the sealing ring at one end of the sealing cylinder 22. 40 is compressed after the collision. When the second power assembly 21 drives the second movable plate 23 and the sealing cylinder 22 to move downward, the sealing cylinder 22 is in conflict with the sealing ring 40, thereby forming a sealed space on the outside of the fire sprinkler. Adding a sealing ring on the surface of the sealing ring 40 can improve the sealing of the two. Then the boss 35 is in conflict with the sprinkler 1 of the fire sprinkler, so that the fire sprinkler can be pressed against the placement plate 14 to ensure that there will be no gas leakage between the fire sprinkler and the placement plate 14 to affect the detection result.

[0019] The driving assembly includes a motor 8, a conveyor belt 9 and a transmission shaft 7. There are two groups of conveyor belts 9, which are installed on the testing platform 6 through the transmission shaft 7. The output shaft of the motor 8 is fixedly connected to one of the transmission shafts 7. A fixed block 16 is fixedly installed between the placement plate 14 and the conveyor belt 9. The motor 8 drives the transmission shaft 7 to rotate forward and reverse, so that the transmission belt can drive the two groups of placement mechanisms 10 to slide back and forth horizontally, so that the two groups of placement mechanisms 10 can slide between the sealing mechanism 12 and the ventilation mechanism 5 in turn. In this way, the fire sprinklers on one group of placement mechanisms 10 can be placed while the fire sprinklers on the other group of placement mechanisms 10 can be tested for sealing, which effectively improves the efficiency of the detection.

[0020] Working principle: Place multiple fire sprinkler heads on one of the placement plates 14, keep the sprinkler 1 upward, and the inflow end of the sprinkler head body 4 downward, then the second power assembly 21 drives the second movable plate 23 and the sealing cylinder 22 to move downward until the sealing cylinder 22 hits the sealing ring 40, and the boss 35 presses the sprinkler 1, at this time, a closed space is formed between the sealing cylinder 22 and the placement plate 14, and the closed space of each fire sprinkler head is independent of each other, then the first power assembly 18 drives the first movable plate 20 to move upward until one end of the air guide tube 17 hits one end of the sprinkler head body 4, and then the air inlet pipe 19 introduces carbon dioxide gas, and the carbon dioxide gas enters each sprinkler head body 4 through the air guide channel and the air guide tube 17. When the sealing of one of the fire sprinkler heads does not meet the standard, the carbon dioxide gas will leak from between the plug 3 and the sprinkler head body 4 and enter the closed space. Since carbon dioxide is a gas with a large molecular weight, it has a unique absorption peak in the infrared spectrum, and infrared sensing The device 24 determines the presence and concentration of carbon dioxide by detecting infrared radiation of a specific wavelength. When the concentration of carbon dioxide gas rises above a preset value, the infrared sensor 24 sends a control signal to energize the electromagnetic induction component 27 and generate an induced magnetic field, and generates an electromagnetic adsorption force on the first iron block 31, so that the movable card 30 is separated from the annular groove 38, and the sliding rod 29 and the identification rod 26 slide under the action of the first spring 33, so that one end of the identification rod 26 touches the sprinkler 1 to make a mark. When the carbon dioxide concentration in the enclosed space is lower than the preset value, the electromagnetic induction component 27 is not energized, the movable card 30 does not slide, and the positions of the sliding rod 29 and the identification rod 26 do not change. In this way, after the detection is completed, the marking conditions on the surfaces of different fire sprinklers can be checked to determine whether their sealing meets the requirements. The two sets of placement mechanisms 10 can realize the simultaneous detection and placement of fire sprinklers, which is simple and convenient to operate and effectively improves the detection efficiency.

[0021] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0022] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A fire sprinkler sealing detection device, comprising a detection platform (6), a placement mechanism (10), a ventilation mechanism (5) and a sealing mechanism (12), characterized in that: The placement mechanism (10) is provided in two groups and is slidably arranged on the detection table (6). The detection table (6) is provided with a fixing frame (13). The sealing mechanism (12) and the ventilation mechanism (5) are respectively installed on the fixing frame (13) and the detection table (6) in an upper and lower distribution. The detection table (6) is provided with a driving component, and the driving component is used to drive the two groups of placement mechanisms (10) to slide horizontally in the same direction, and to allow one group of placement mechanisms (10) to slide to the sealing mechanism (12) and the ventilation mechanism. The placement mechanism (10) comprises a placement plate (14) and a pulley (15), the placement plate (14) having a plurality of grooves for mounting fire sprinkler heads, the pulley (15) being rotatably mounted on the bottom of the placement plate (14), the ventilation mechanism (5) comprising a first movable plate (20), a first power assembly (18), an air intake pipe (19) and an air guide pipe (17), the first power assembly (18) being mounted on the detection table (6) and being used to drive the first movable plate (20) The fire sprinkler is vertically lifted and lowered. An air guide channel is provided in the first movable plate (20). The number of the air guide tubes (17) is the same as the number of the grooves. One end of the air guide tube (17) and the air inlet tube (19) are connected to the air guide channel. The sealing mechanism (12) comprises a first movable plate (20), a sealing cylinder (22), an infrared sensor (24), a marking component and a second power component (21). The second power component (21) is mounted on a fixing frame (13) and drives the second movable plate (23) to vertically lift and lower. A plurality of sealing cylinders (22) are provided and mounted on the fixing frame (13). When the sealing cylinder (22) contacts the placement plate (14), a closed space is formed outside one end of the fire sprinkler. The infrared sensor (24) is mounted on the sealing cylinder (22) and is used to detect the concentration of carbon dioxide in the closed space. The marking component is mounted on the sealing cylinder (22). When the concentration of carbon dioxide in the closed space exceeds a preset value, the marking component marks the surface of the fire sprinkler.

2. A fire sprinkler sealing detection device according to claim 1, characterized in that: The marking assembly comprises a sliding rod (29), a first spring (33), an identification rod (26), a movable clamp (30) and an electromagnetic induction component (27); a fixed seat (25) is installed on the sealing cylinder (22); the sliding rod (29) is vertically slidably arranged in the fixed seat (25); an annular groove (38) is arranged on the sliding rod (29); one end of the sliding rod (29) extends out of the outside of the fixed seat (25); the other end is fixedly connected to the identification rod (26); a boss (35) is arranged in the sealing cylinder (22); the identification rod (26) is slidably arranged in the boss (35); the fixed seat (25) has a slide groove for the movable clamp (30) to slide horizontally; One end of the movable clamp (30) has a first iron block (31), and the electromagnetic induction component (27) is mounted on the outer side of the fixed seat (25) corresponding to the first iron block (31). The electromagnetic induction component (27) is coupled to the infrared sensor (24), and when the carbon dioxide concentration in the enclosed space exceeds a preset value, the infrared sensor (24) sends an electrical signal to control the electromagnetic induction component (27) to be energized. After being energized, the electromagnetic induction component (27) generates an electromagnetic adsorption force on the first iron block (31), and the two ends of the first spring (33) are respectively in contact with the fixed seat (25) and the sliding rod (29), and the first spring (33) exerts a force on the sliding rod (29) to approach the sealing cylinder (22).

3. A fire sprinkler sealing detection device according to claim 2, characterized in that: The movable clamping member (30) comprises a movable clamping block (34), a connecting rod (37) and a second spring (32); the movable clamping block (34), the connecting rod (37) and the first iron block (31) are fixedly connected by bolts; the second spring (32) is sleeved on the outside of the connecting rod (37) and applies a force to the movable clamping block (34) to approach the sliding rod (29); one end of the movable clamping block (34) has a notch that matches the annular groove (38); the electromagnetic induction member (27) comprises an induction coil and an iron core; the induction coil is wound on the outside of the iron core.

4. A fire sprinkler sealing detection device according to claim 2, characterized in that: A reset member is also provided between the fixed frame (13) and the sliding rod (29), the reset member comprising a magnetic block (11) and a second iron block (28), the second iron block (28) being fixed to the sliding rod (29) by means of bolts, the magnetic block (11) being fixed to the fixed frame (13) directly above the second iron block (28), and the sliding rod (29) having an annular protrusion (36) at a mounting position corresponding to the first spring (33).

5. A fire sprinkler sealing detection device according to claim 1, characterized in that: The placement plate (14) is also provided with a movable seal, which comprises a sealing ring (40), a limiting bolt (42) and a third spring (39). The placement plate (14) is provided with a recessed groove (41), and the sealing ring (40) is slidably arranged in the recessed groove (41). One end of the limiting bolt (42) passes through the placement plate (14) and is fixedly connected to the sealing ring (40). The third spring (39) is sleeved on the outside of the limiting bolt (42), and the two ends of the third spring (39) are respectively in contact with the placement plate (14) and the sealing ring (40). The third spring (39) is compressed after one end of the sealing cylinder (22) contacts the sealing ring (40).

6. A fire sprinkler sealing detection device according to claim 1, characterized in that: The driving assembly comprises a motor (8), a conveyor belt (9) and a transmission shaft (7); the conveyor belt (9) is provided in two groups and is mounted on the detection table (6) via the transmission shaft (7); the output shaft of the motor (8) is fixedly connected to one of the transmission shafts (7); and a fixing block (16) is fixedly mounted between the placement plate (14) and the conveyor belt (9).

7. A fire sprinkler sealing detection device according to claim 1, characterized in that: The first power assembly (18) and the second power assembly (21) are cylinders, and the pistons of the cylinders are fixedly connected to the first movable plate (20) or the second movable plate (23).

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