Fire water monitor performance testing device and method
The fire monitor is driven to rotate and pitch by a transmission module and a meshing swing structure. Combined with meshing pressure and a vibrator to simulate water pressure, the problem of limited manual operation and risk of equipment damage is solved, and automated and accurate performance testing is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- WEILONG VALVE COMPANY
- Filing Date
- 2026-01-26
- Publication Date
- 2026-04-10
AI Technical Summary
In existing technologies, the rotation and pitch operation tests of handheld fire monitors are affected by human physiological limitations and operational subjectivity, and cannot simulate water pressure impact, resulting in inaccurate tests and a high risk of equipment damage.
The system employs a transmission module and a meshing swing structure, which drives the fire monitor to rotate and pitch synchronously via a motor. Combined with a meshing pressure-resistant structure and a vibrator to simulate water pressure and external resistance, and using signal induction lights to monitor mechanical stability, the system achieves automated testing.
It has enabled automated and standardized testing of fire monitors, simulating actual usage conditions, improving testing accuracy and equipment safety, and reducing the risk of human error.
Smart Images
Figure CN121829949A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of fire monitor technology, specifically a fire monitor performance testing device and method. Background Technology
[0002] In the field of fire rescue, fire monitors are core fire extinguishing equipment. Their operational flexibility and structural reliability directly determine the efficiency of fire suppression and the safety of rescue. Among them, the rotation and elevation movements of the monitor body are key functions to achieve comprehensive coverage of the fire area. After production, cyclic operation tests on these two movements are the core link to verify the wear resistance, transmission stability and movement accuracy of the fire monitor's mechanical structure. It is also a necessary means to ensure that the product meets national standards such as "General Technical Conditions for Fire Monitors" (GB 19156). With the development trend of intelligent and lightweight fire-fighting equipment and the rapid iteration of the new energy vehicle industry, fuel cell-driven new energy vehicles have gradually become the preferred carrier for vehicle-mounted fire-fighting equipment due to their advantages such as long driving range, zero emissions and stable power output. The application of vehicle-mounted fire monitors and fuel cell dual-drive vehicles is becoming increasingly widespread. Currently, for handheld fire monitors, the rotation, tilting, and pitching operations of the monitor body and spray pipe are mostly tested manually. The core purpose of the rotation and pitching cyclic operation test of the fire monitor is to verify the structural stability of the mechanical parts, the wear and tear of long-term use, and the service life. This requires simulating long-term use scenarios through high-frequency, standardized cyclic actions. However, the entire test is performed manually, which is affected by human physiological limitations and the subjectivity of operation. Furthermore, the manual rotation and pitching cyclic operation test of the fire monitor does not have the impact pressure felt by the fire monitor when supplying water. Therefore, the presence of water pressure has a significant impact on the rotation and pitching cyclic operation test of the fire monitor. Summary of the Invention
[0003] To address the problems mentioned in the background section, this invention provides a fire monitor performance testing device and method.
[0004] To achieve the above objectives, the present invention provides the following technical solution: a fire monitor performance testing device, comprising a fire monitor body and a testing section. The fire monitor body includes a cannon barrel, a cannon tube, and a grip rod for controlling the tilt angle of the cannon tube. The testing section includes a T-shaped groove column and multiple bolts for fixing the T-shaped groove column and the fire monitor body. A transmission module is fixedly connected through the column of the T-shaped groove column. A rotating rod is fixedly connected to the bottom end of the transmission module. A motor is fixedly connected to the end of the transmission module away from the T-shaped groove column. The motor can drive the transmission module to drive the T-shaped groove column and the fire monitor body to rotate synchronously. The transmission module consists of tooling wheels fixedly mounted on the T-shaped groove column and the motor, and synchronous belts mounted on the two tooling wheels; The bottom of the rotating rod is provided with a meshing swing structure, which includes an arc-shaped plate and a rotating shaft movably sleeved on the top plate of the arc-shaped plate. A sleeve rod is fixedly connected to the rotating shaft, and a telescopic shaft rod is movably sleeved on the other side of the sleeve rod. A ball shaft rod is fixedly connected to the telescopic shaft rod. Different shaped rollers are movably connected to the upper and lower ends of the ball shaft rod. The upper rectangular roller is fitted and connected to the handle rod. When the ball shaft rod is passively tilted, it drives the handle rod to tilt the cannon tube around the fire monitor body as the axis, thereby changing the pitch angle of the cannon tube.
[0005] Preferably, the testing unit further includes a workbench, the top of which is fixedly connected to the bottom of the motor, and the rod of the rotating rod is rotatably connected to the workbench.
[0006] Preferably, the meshing swing structure further includes a meshing assembly fixedly connected to the bottom end of the rotating rod one. The meshing assembly is composed of two meshing bevel gears. A rotating rod two is fixedly connected to the vertical bevel gears. The rod body of the rotating rod two is fixedly connected to the bottom plate of the arc-angle plate. The rod body of the rotating rod one is also provided with a meshing pressing structure.
[0007] Preferably, a U-shaped rod plate is rotatably connected through the lower roller, a support plate is fixedly connected to the bottom end of the U-shaped rod plate, the top plate of the support plate is fixedly connected to the worktable, and the rod of the second rotating rod is also movably sleeved with the plate of the support plate; The grip bar is threaded with a threaded disc, and the threaded disc and the roller above it can be indirectly fitted and connected.
[0008] Preferably, the meshing and pressing structure includes a T-shaped gear fixedly connected to the rotating rod, a toothed plate meshing with the T-shaped gear, a spring fixedly connected to one end of a smooth plate section of the toothed plate, an ear plate fixedly connected to the other end of the spring, and the top end of the ear plate being fixedly connected to the machine tool.
[0009] Preferably, a square frame plate is fixedly connected to the other end of the toothed plate, and a snap-fit telescopic block can be intermittently fitted and snapped into the inner wall of the square frame plate. The top rod of the snap-fit telescopic block is fixedly connected to the working platform, and a bracket is fixedly connected to the top of the smooth plate of the toothed plate.
[0010] Preferably, the workbench has a through groove that slides and fits into the bracket. T-shaped sliders are fixedly connected to the two end plates of the bracket near the bottom. T-shaped grooves that can slide and engage with the two T-shaped sliders are formed in the inner walls of both ends of the groove.
[0011] Preferably, a semi-circular ball bearing frame is fixedly connected to the top frame of the bracket, and the inner wall of the semi-circular ball bearing frame with multiple sets of balls can be fitted and connected to the outer surface of the fire monitor body. A vibrator is fixedly connected to the outer wall of the semi-circular ball bearing frame.
[0012] Preferably, two symmetrical L-shaped arc plate frames are fixedly connected to the transmission module tooling wheel body located at the T-shaped groove column. T-shaped rods are slidably connected through the inner wall plates of the two L-shaped arc plate frames near the top. One end of each of the two T-shaped rods is respectively fitted and connected to the fire monitor body. Cylindrical tubes are fixedly connected to the outer wall panels of the two L-shaped arc plate frames near the top. Springs are fixedly connected between the two cylindrical tubes and the two T-shaped rods. Two signal induction lights are installed on the outer wall of each of the two cylindrical tubes.
[0013] A method for testing the performance of fire monitors, the steps of which are as follows: S1. By starting the motor, the transmission module drives the T-shaped groove column and the fire monitor body to rotate synchronously to test the rotation performance. The transmission module drives the rotating rod one to rotate, and through the meshing component, it drives the rotating rod two and the arc plate to tilt the telescopic shaft and the ball shaft, causing the elevation angle of the cannon barrel to change. S2. The rotating rod drives the T-shaped gear to rotate, and the meshing tooth plate moves, so that the semi-circular ball frame continuously presses against the fire monitor body. The vibrator simulates internal vibration and evaluates stability. S3. When the fire monitor body shakes, the T-shaped rod compresses the second spring inside the cylindrical tube, triggering the signal induction light (yellow / red) to light up, indicating the test status. S4. When the signal sensor light turns red, stop the test and assess the wear of mechanical parts and the specific looseness of the connectors (they are no longer in a normal working condition).
[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention uses a transmission module and a meshing swing structure to simultaneously realize the reciprocating rotation of the fire monitor body and the swing of the cannon tube's pitch angle, simulating the dynamic load in actual fire extinguishing operations and comprehensively testing the stability of the mechanical structure. By applying continuous resistance through meshing and pressure-absorbing structures (such as T-gears, toothed plates, springs, and semi-circular ball bearings), the external resistance and water pressure recoil force are simulated. The vibrator simulates the vibration caused by internal mechanical components and water flow impact, and evaluates the test equipment's resistance to displacement and wear. This invention uses a structure consisting of an L-shaped arc plate frame, a T-shaped rod, and a spring to monitor the looseness of the connecting parts. It uses signal induction lights (yellow / red) to indicate the test status, thus avoiding over-testing that could damage the equipment. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the front view of a partial cross-section of the present invention; Figure 3 For the present invention Figure 2 A magnified view of the structure at point A in the middle; Figure 4 This is a partial bottom view of the structure of the present invention; Figure 5 For the present invention Figure 4 A magnified schematic diagram of the structure at point B in the middle; Figure 6 This is a partial left-side view of the test section of the present invention. Figure 7 This is a partial three-dimensional structural diagram of the testing section of the present invention; Figure 8 This is a partial cross-section of the machine tool of the present invention and a schematic diagram of the disassembled structure of a T-shaped slider and a support; Figure 9 For the present invention Figure 2 A magnified schematic diagram of the structure at point C in the middle; Figure 10 This is a schematic diagram of the specific structure of the roller of the present invention.
[0016] In the picture: 1. Fire monitor body; 2. Testing Department; 201. Workbench; 202. T-slot column; 203. Bolt; 204. Motor; 205. Transmission module; 206. Rotating rod one; 207. Meshing assembly; 208. Rotating rod two; 209. Arc plate; 210. Rotating shaft; 211. Sleeve rod; 212. Telescopic shaft; 213. Ball shaft; 214. Roller; 215. U-shaped rod plate; 216. Support plate; 217. Threaded disc; 218. T-shaped gear; 219. Tooth plate; 220. Spring one; 221. Square frame plate; 222. Snap-fit telescopic block; 223. Bracket; 224. T-shaped slider; 225. Semi-circular ball bearing frame; 226. Vibrator; 2261. L-shaped arc plate frame; 227. T-shaped rod; 228. Cylindrical tube; 229. Spring two; 230. Signal sensor light. Detailed Implementation
[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0018] like Figures 1 to 10 As shown, the present invention provides a fire monitor performance testing device, including a fire monitor body 1 and a testing section 2. The fire monitor body 1 includes a monitor body, a monitor tube, and a handle for controlling the tilt angle of the monitor tube. The testing section 2 includes a T-shaped groove column 202 and a plurality of bolts 203 for fixing the T-shaped groove column 202 and the fire monitor body 1. A transmission module 205 is fixedly connected through the column of the T-shaped groove column 202. A rotating rod 206 is fixedly connected to the bottom end of the transmission module 205. A motor 204 is fixedly connected to the end of the transmission module 205 away from the T-shaped groove column 202. The motor 204 can drive the transmission module 205 to drive the T-shaped groove column 202 and the fire monitor body 1 to rotate synchronously. The transmission module 205 consists of tooling wheels fixedly installed on the T-shaped groove column 202 and the motor 204, and a synchronous belt installed on the two tooling wheels. The testing unit 2 also includes a workbench 201, the top of which is fixedly connected to the bottom of the motor 204, and the rod of the rotating rod 206 is rotatably connected to the workbench 201.
[0019] The above scheme is adopted: the fire monitor body 1 and the T-shaped groove column 202 are aligned manually and then fixed with multiple bolts 203 (then the long rectangular roller 214 located above the ball shaft 213 is put on the handle, and the threaded disc 217 is screwed onto the handle for limit). The motor 204 drives the transmission module 205 to rotate back and forth, and the transmission T-shaped groove column 202 rotates at a fixed point on the movable working platform 201, thereby driving the fire monitor body 1 to rotate back and forth as a whole, which is used to directly test the reciprocating rotation performance of the fire monitor body 1.
[0020] The bottom of the rotating rod 206 is provided with a meshing swing structure, which includes an arc-shaped plate 209 and a rotating shaft 210 movably sleeved on the top plate of the arc-shaped plate 209. A sleeve rod 211 is fixedly connected to the rotating shaft 210. A telescopic shaft rod 212 is movably sleeved on the other side of the sleeve rod 211. A ball shaft rod 213 is fixedly connected to the telescopic shaft rod 212. Different shaped rollers 214 are movably connected to the upper and lower ends of the ball shaft rod 213. The upper long rectangular roller 214 is in close contact with the handle. When the ball shaft rod 213 is passively tilted, it drives the handle to tilt the cannon tube with the fire monitor body 1 as the axis, thereby changing the pitch angle of the cannon tube. The meshing swing structure also includes a meshing assembly 207 fixedly connected to the bottom of the rotating rod 206. The meshing assembly 207 is composed of two meshing bevel gears. A rotating rod 208 is fixedly connected to the vertical bevel gear. The rod of the rotating rod 208 and the bottom plate of the arc-angle plate 209 are fixedly connected through the rod. The rod of the rotating rod 206 is also provided with a meshing pressing structure. A U-shaped rod plate 215 is rotatably connected through the lower roller 214. A support plate 216 is fixedly connected to the bottom of the U-shaped rod plate 215. The top plate of the support plate 216 is fixedly connected to the worktable 201. The rod of the rotating rod 208 is also movably sleeved with the plate of the support plate 216. A threaded disc 217 is threadedly connected to the handle. The threaded disc 217 and the upper roller 214 can be indirectly fitted together.
[0021] The above solution is adopted: such as Figure 3 and Figure 4 As shown, the passively rotating transmission module 205 also drives the rotating rod 206 of the transmission module to rotate. The rotating rod 206, in its rotating state, directly drives two meshing bevel gears to rotate. One of the driven bevel gears drives the rotating rod 208 and the arc-shaped plate 209 to reciprocate and oscillate. Figure 4 and Figure 5As shown, the arc-shaped plate 209, which passively tilts and swings around the pivot 208, can drive the pivot 210 and the sleeve rod 211 to tilt. This pushes the telescopic shaft 212, causing the ball shaft 213 to tilt. The passively tilted ball shaft 213 will tilt around the roller 214 rotating on the U-shaped plate 215. The height of the ball shaft 213 in the tilted state is shorter than that in the vertical state. Therefore, the upper rectangular roller 214 connected to the handle will be forced to tilt the handle, thereby causing the cannon tube on the fire monitor body 1 to tilt. When the fire monitor body 1 is rotated back and forth as a whole, the handle will passively follow the rotation and slide on the inner wall of the long rectangular roller 214. This achieves the overall reciprocating rotation of the fire monitor body 1 and the reciprocating swing test corresponding to the pitch angle of the monitor tube. During the test, it is used to check whether the rotation is smooth and without jamming, and whether the rotation resistance meets the design requirements. The reciprocating operation simulates long-term use scenarios and observes the wear of mechanical parts. The test results serve as an important basis for evaluating the service life of the fire monitor.
[0022] The meshing and pressing structure includes a T-shaped gear 218 fixedly connected to a rotating rod 206. A toothed plate 219 is meshed with the T-shaped gear 218. A spring 220 is fixedly connected to one end of a smooth section of the toothed plate 219. An ear plate is fixedly connected to the other end of the spring 220. The top of the ear plate is fixedly connected to the working platform 201. A square frame plate 221 is fixedly connected to the other end of the toothed plate 219. A snap-fit telescopic block 222 can be intermittently engaged in the inner wall of the square frame plate 221. The top rod of the snap-fit telescopic block 222 is fixedly connected to the working platform 201. The toothed plate 219 is smooth. A bracket 223 is fixedly connected to the top of the slide plate. A sliding groove is opened through the work platform 201 to slide and fit with the bracket 223. T-shaped sliders 224 are fixedly connected to the two end plates of the bracket 223 near the bottom. T-shaped grooves that can slide and engage with the two T-shaped sliders 224 are opened in the inner walls of the two ends of the sliding groove. A semi-circular ball frame 225 is fixedly connected to the top frame of the bracket 223. The inner wall of the semi-circular ball frame 225 with multiple sets of balls can fit and connect with the outer surface of the fire monitor body 1. A vibrator 226 is fixedly connected to the outer wall of the semi-circular ball frame 225.
[0023] The above solution is adopted: such as Figure 4 and Figure 5As shown, after the passive rotation of the rotating rod 206, the moving T-shaped gear 218 of the transmission module will also rotate and mesh with the transmission gear plate 219 to move. The passive movement of the gear plate 219 will drive the bracket 223 to move horizontally in the slide groove. At the same time, the spring 220 fixed between the tension and the ear plate will deform. The passively moving bracket 223 will drive the semi-circular ball frame 225 to move and contact the outer wall of the fire monitor body 1, applying pressure to it. Since multiple sets of balls are installed in the inner wall of the semi-circular ball frame 225 to reduce the coefficient of friction with the fire monitor body 1, there will be no jamming problem when the fire monitor body 1 rotates. At the same time, the semi-circular ball frame 225 that is in close contact with the fire monitor body 1 will... Figure 8 As shown, the bracket 223 and the T-shaped slider 224 installed at both ends move to the rightmost end of the corresponding T-shaped groove. At this moment, the T-shaped gear 218 will contact the smooth plate part on the toothed plate 219, no longer meshing with the teeth, and the spring 220 will also be stretched to its maximum value. The installation of the spring 220 facilitates the subsequent elastic drive of the toothed plate 219 to reset and move horizontally, so that the teeth on the toothed plate 219 can contact the T-shaped gear 218 again. At this time, the motor 204 can be manually stopped by the controller, and the locking telescopic block 222 can be manually pulled down so that its telescopic locking rod can fall and fit against the square plate 221 (moving under the square plate 221 through the passive meshing transmission of the toothed plate 219). Then the motor 204 is made to rotate normally back and forth, and the toothed plate 219 and the T-shaped gear 218 will move to the rightmost end of the groove. After the gears 218 no longer mesh, the toothed plate 219 cannot move passively. This allows the semi-circular ball bearing frame 225 to continuously provide resistance to the fire monitor body 1 in its reciprocating rotation state, simulating the external resistance and recoil force that the fire monitor 1 may encounter in actual fire extinguishing scenarios. This tests the stability of its mechanical structure and whether the fire monitor body 1 exhibits equipment retreat or displacement during the test. The vibrator 226, which is fixed on the semi-circular ball bearing frame 225, also vibrates the fire monitor body 1, simulating the vibration caused by the high-speed internal rotating mechanical parts and water flow impact. This makes the test method for the fire monitor body 1 conform to the actual use conditions in the prior art. By adding and continuously testing the resistance, the wear and tear of the fire monitor during long-term use can be simulated.
[0024] Two symmetrical L-shaped arc plate frames 2261 are fixedly connected to the tooling wheel of the transmission module 205 located at the T-shaped groove column 202. T-shaped rods 227 are slidably connected through the inner wall plates of the two L-shaped arc plate frames 2261 near the top. One end of each T-shaped rod 227 is respectively fitted and connected to the fire monitor body 1. Cylindrical cylinders 228 are fixedly connected to the outer wall plates of the two L-shaped arc plate frames 2261 near the top. Springs 229 are fixedly connected between the two cylindrical cylinders 228 and the two T-shaped rods 227. Two signal induction lights 230 are installed on the outer wall of each of the two cylindrical cylinders 228.
[0025] The above solution is adopted: such as Figure 1 and Figure 9 As shown, when the fire monitor body 1 passively reciprocates for a long time, its connection and fixation to the T-shaped column 202 via bolts 203 (which also simulates the existing technology of fixing the fire monitor body 1 to the fire truck body) will cause inertial swaying if the connection becomes loose. This inertial swaying force will repeatedly collide with the T-shaped rod 227. The two L-shaped arc plate frames 2261, which rotate synchronously with the transmission module 205, can drive the corresponding T-shaped rod 227, the cylindrical tube 228, and the fire monitor body 1 to maintain the same rotation frequency. At that time, the fire monitor body 1... The repeated movement of the parts will cause wear and tear, which will cause the fire monitor body 1 to loosen during the reciprocating rotation test. Under the fixed trajectory of the motor 204, the fire monitor body 1 will repeatedly shake due to the loosening of the parts, impacting and pressing the T-shaped rod 227. The T-shaped rod 227 will compress the spring 229 inside the cylindrical tube 228. Depending on the amount of shaking pressure, it will move to different positions below the signal sensor 230. The movement position will cause the signal sensor 230 to light up. When the red light is on, it is used to indicate that the manual test has reached its limit and the performance test of the fire monitor body 1 can be ended.
[0026] It should be added that the core of the automatic lighting system when the light source is near the lamp body is the use of piezoelectric materials to emit ultrasonic waves and receive their echoes. Distance is determined by calculating the time difference. The signal-sensing lamp 230 uses a miniature ultrasonic sensor, a technology already in use. The piezoelectric crystal (or ceramic) within the sensor vibrates mechanically under electrical signal excitation, emitting ultrasonic pulses inaudible to the human ear. These ultrasonic waves propagate through the air and reflect back upon encountering obstacles. The same piezoelectric material within the sensor converts these mechanical vibrations back into weak electrical signals, allowing the system to sense objects and distances without physical contact. Therefore, when the T-shaped rod 227 approaches the corresponding signal-sensing lamp 230, it illuminates. Figure 9 The signal sensor light 230 that is closer to the T-shaped pole 227 is yellow, while the light that is farther away from the T-shaped pole 227 is bright red. The semi-circular ball bearing holder 225, as described above, is specifically composed of a semi-circular plate and multiple sets of balls rotatably installed in the inner wall of the plate, all of which are made of metal materials commonly used in the prior art. The motor 204 drives the transmission module 205 to rotate back and forth. Specifically, the rotation of the transmission module 205 is achieved by the reciprocating rotation of the motor 204 shaft, which in turn drives the transmission module 205 to rotate in the same forward and reverse directions. The purpose is to synchronize the transmission module 205 by the degree of forward and reverse rotation of the motor 204, thereby driving the fire monitor body 1 to perform performance tests at different degrees (rotation and pitch angles).
[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A fire monitor performance testing device, comprising a fire monitor body (1) and a testing unit (2), characterized in that: The fire monitor body (1) includes a monitor body, a monitor tube, and a lever for controlling the tilt angle of the monitor tube. The test section (2) includes a T-shaped groove column (202) and multiple bolts (203) for fixing the T-shaped groove column (202) and the fire monitor body (1). A transmission module (205) is fixedly connected through the column of the T-shaped groove column (202). A rotating rod (206) is fixedly connected to the bottom end of the transmission module (205). A motor (204) is fixedly connected to the end of the transmission module (205) away from the T-shaped groove column (202). The motor (204) can drive the transmission module (205) to drive the T-shaped groove column (202) and the fire monitor body (1) to rotate synchronously. The transmission module (205) consists of tooling wheels fixedly mounted on the T-shaped groove column (202) and the motor (204), and a timing belt mounted on the two tooling wheels; The bottom of the rotating rod (206) is provided with a meshing swing structure. The meshing swing structure includes an arc-shaped plate (209) and a rotating shaft (210) movably sleeved on the top plate of the arc-shaped plate (209). A sleeve rod (211) is fixedly connected to the rotating shaft (210). A telescopic shaft rod (212) is movably sleeved on the other side of the sleeve rod (211). A ball shaft rod (213) is fixedly connected to the telescopic shaft rod (212). Different shaped rollers (214) are movably connected to the upper and lower ends of the ball shaft rod (213). The upper rectangular roller (214) is fitted and connected to the handle. When the ball shaft rod (213) is passively tilted, it drives the handle to tilt the cannon tube with the fire monitor body (1) as the axis point, thereby changing the pitch angle of the cannon tube.
2. The fire monitor performance testing device according to claim 1, characterized in that: The test unit (2) also includes a workbench (201), the top of the workbench (201) and the bottom body of the motor (204) are fixedly connected, and the rod of the rotating rod (206) is rotatably connected to the workbench (201).
3. The fire monitor performance testing device according to claim 2, characterized in that: The meshing swing structure also includes a meshing assembly (207) fixedly connected to the bottom rod of the first rotating rod (206). The meshing assembly (207) is composed of two bevel gears that mesh with each other. A second rotating rod (208) is fixedly connected to the vertical bevel gear. The rod of the second rotating rod (208) and the bottom plate of the arc-angle plate (209) are fixedly connected through each other. The rod of the first rotating rod (206) is also provided with a meshing and pressing structure.
4. The fire monitor performance testing device according to claim 3, characterized in that: A U-shaped rod plate (215) is rotatably connected through the lower roller (214). A support plate (216) is fixedly connected to the bottom end of the U-shaped rod plate (215). The top plate of the support plate (216) is fixedly connected to the worktable (201), and the rod of the rotating rod (208) is also movably sleeved with the plate of the support plate (216). The grip bar is threaded with a threaded disc (217), and the threaded disc (217) and the roller (214) above it can be indirectly fitted and connected.
5. The fire monitor performance testing device according to claim 3, characterized in that: The meshing and pressing structure includes a T-shaped gear (218) fixedly connected to the rotating rod (206), a toothed plate (219) meshing with the T-shaped gear (218), a spring (220) fixedly connected to one end of a smooth plate section of the toothed plate (219), an ear plate fixedly connected to the other end of the spring (220), and the top end of the ear plate fixedly connected to the worktable (201).
6. The fire monitor performance testing device according to claim 5, characterized in that: A square frame plate (221) is fixedly connected to the other end of the toothed plate (219). A snap-fit telescopic block (222) is intermittently attached to the inner wall of the square frame plate (221). The top rod of the snap-fit telescopic block (222) is fixedly connected to the working table (201). A bracket (223) is fixedly connected to the top of the smooth plate of the toothed plate (219).
7. The fire monitor performance testing device according to claim 6, characterized in that: The worktable (201) has a through groove that slides and fits into the bracket (223). T-shaped sliders (224) are fixedly connected to the two end plates of the bracket (223) near the bottom. T-shaped grooves that can slide and engage with the two T-shaped sliders (224) are provided in the inner walls of both ends of the groove.
8. The fire monitor performance testing device according to claim 7, characterized in that: A semi-circular ball bearing frame (225) is fixedly connected to the top frame of the bracket (223), and the inner wall of the semi-circular ball bearing frame (225) with multiple sets of balls can be fitted and connected to the outer surface of the fire monitor body (1). A vibrator (226) is fixedly connected to the outer wall of the semi-circular ball bearing frame (225).
9. The fire monitor performance testing device according to claim 8, characterized in that: Two symmetrical L-shaped arc plate frames (2261) are fixedly connected to the tooling wheel body of the transmission module (205) located at the T-shaped groove column (202). T-shaped rods (227) are slidably connected through the inner wall plates near the top of the two L-shaped arc plate frames (2261). One end of each of the two T-shaped rods (227) is respectively fitted and connected to the fire monitor body (1). A cylindrical tube (228) is fixedly connected to the outer wall plate near the top of each of the two L-shaped arc plate frames (2261). A spring (229) is fixedly connected between each of the two cylindrical tubes (228) and the two T-shaped rods (227). Two signal induction lamps (230) are installed on the outer wall of each of the two cylindrical tubes (228).
10. A method for testing the performance of a fire monitor, applied to the fire monitor performance testing device of claim 9, characterized in that: The steps for using the testing method are as follows: S1. By starting the motor (204), the transmission module (205) drives the T-shaped groove column (202) and the fire monitor body (1) to rotate synchronously and test the rotation performance. The transmission module (205) drives the rotating rod one (206) to rotate. Through the meshing component (207), the transmission rod two (208) and the arc plate (209) are driven to tilt the telescopic shaft (212) and the ball shaft (213), causing the gun barrel elevation angle to change. S2. The T-shaped gear (218) is driven to rotate by the rotating rod (206), and the meshing tooth plate (219) moves, so that the semi-circular ball frame (225) continuously presses against the fire monitor body (1), and the vibrator (226) simulates internal vibration to evaluate stability. S3. When the fire monitor body (1) shakes, the T-shaped rod (227) squeezes the second spring (229) inside the cylindrical tube (228), triggering the signal sensor light (230) (yellow / red) to light up, indicating the test status; S4. When the signal sensor light (230) turns red, stop the test and assess the wear of mechanical parts and the specific looseness of the connectors (they are no longer in normal working condition).