Adjustable fire water monitor spray distance detection device

Abstract

The utility model provides a kind of adjustable fire-fighting lance jet distance detection device, belong to distance detection device technical field, including base, support assembly and the driving part for driving support assembly rotation are equipped on base;Support assembly includes support table and electric push rod and jet column;Wherein, jet column is connected with support table by pivot, electric push rod one end is hinged with support table, other end is connected with jet column, and there is formed with elevation angle adjusting structure;Buffering assembly is equipped on jet column, buffering assembly includes two groups of damping rod symmetrically arranged in the both sides of jet column, movable rod of two groups of damping rod is installed fixed plate, jet pipe is arranged in jet column, lance nozzle is equipped on fixed plate;Detection assembly is equipped on jet column, and detection assembly includes laser ranging sensor and data processing module.By setting buffering assembly on jet column, so that the device can relieve the recoil force and water flow impact generated when lance jet, improve the stability of the device.

Description

Technical Field

[0001] This utility model belongs to the technical field of distance detection devices, and more specifically, it relates to an adjustable fire hose spray distance detection device. Background Technology

[0002] In the field of fire equipment performance testing, specialized equipment is often required to accurately measure various performance indicators of fire hoses. For example, in the research and development, production, and daily maintenance of fire equipment, in order to ensure that fire hoses can spray water to the required distance in actual fire extinguishing scenarios, their spray distance is often rigorously tested. At this time, a fire hose spray distance testing device is needed to measure the spray distance of the fire hose, so as to evaluate the performance of the hose and ensure its reliability in actual use.

[0003] However, traditional testing devices lack a buffer structure. In actual fire hose spray distance testing, the recoil force and water flow impact generated during water spray often cause vibration and displacement of various components of the testing device. As a result, during the testing process, due to the impact force of the water spray, the device components such as the spray column and water nozzle will shake. Continuous shaking, under the repeated action of water flow pressure, can easily lead to loosening of the connections between components, which can easily cause equipment damage. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides an adjustable fire hose spray distance detection device, which solves the technical problem in the prior art where the impact force of the water hose spray causes vibration and displacement of components, resulting in deviations in the detection results.

[0005] The purpose and effectiveness of this adjustable fire hose spray distance detection device are achieved by the following specific technical means:

[0006] An adjustable fire hose spray distance detection device includes a base, on which a support assembly and a drive component for driving the support assembly to rotate are provided;

[0007] The support assembly includes a support platform, an electric push rod, and a jet column;

[0008] The spray column is connected to the support platform via a rotating shaft, and one end of the electric push rod is hinged to the support platform and the other end is connected to the spray column, forming an elevation angle adjustment structure.

[0009] The spray column is equipped with a buffer assembly, which includes two sets of damping rods symmetrically arranged on both sides of the spray column. A fixing plate is installed on the movable rod of the two sets of damping rods. A spray pipe is inserted inside the spray column, and a water gun nozzle is provided on the fixing plate.

[0010] The spray column is equipped with a detection component, which includes a laser rangefinder sensor for measuring the landing distance of the water jet from the water gun and a data processing module for receiving and processing the data measured by the laser rangefinder sensor.

[0011] According to a preferred embodiment, the buffer assembly further includes multiple sets of mounting rings, which are sleeved on the jet column. Adjacent mounting rings are connected to the buffer rings by springs, and the multiple sets of mounting rings are provided with isolation sleeves.

[0012] The jet column is provided with a stop post, and a set of the mounting rings are connected to the stop post through the spring and the buffer ring.

[0013] According to a preferred embodiment, a buffer cavity is formed inside the spray column, two sets of guide rails are symmetrically arranged at the top of the buffer cavity, and sliders are provided on both sides of the mounting ring, with the sliders slidably connected to the guide rails.

[0014] According to a preferred embodiment, the spray pipe is connected to the water gun nozzle via a quick-release connector, and a pressure sensor for monitoring water flow pressure is installed on the spray pipe.

[0015] According to a preferred embodiment, the data processing module includes a control module and an image acquisition module, the image acquisition module is installed on one side of the support platform, and the control module is installed on the base.

[0016] According to a preferred embodiment, the laser rangefinder is mounted on the top of the fixed plate, and the fixed plate is provided with a protective cover, with the laser rangefinder located inside the protective cover;

[0017] The protective cover has a window that is only open in the direction of the water flow point for laser emission and reception.

[0018] According to a preferred embodiment, the front end of the protective cover is provided with an inclined airflow guiding surface, and a plurality of heat dissipation holes are opened on one side of the protective cover, and a filter screen is provided in the heat dissipation holes.

[0019] According to a preferred embodiment, the base is provided with multiple sets of support rods on its periphery, and support feet are installed on the multiple sets of support rods. The support feet are provided with multiple sets of feet and negative pressure suction cups.

[0020] According to a preferred embodiment, the driving component includes a turbine, a worm gear, and a drive motor. The turbine and the worm gear are both installed in the base, and the turbine and the worm gear mesh. The drive motor is installed on one side of the base, and the worm gear is connected to the output shaft of the drive motor.

[0021] According to a preferred embodiment, the bottom of the support platform is provided with an angle encoder for acquiring the rotation angle of the support assembly, and the angle encoder is coaxially connected to the turbine.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. This utility model improves the stability of the device by incorporating a buffer component on the spray column, which mitigates the recoil and water flow impact generated during water jetting. The device absorbs and disperses impact forces through the synergistic action of two sets of damping rods, mounting rings, springs, and buffer rings. This prevents components such as the spray column and water jet nozzle from shaking during testing, and ensures more stable connections between components. This enhances the device's resistance to impact forces, prevents deviations in test results due to component movement, and guarantees the accuracy of the test results.

[0024] 2. When using this device, the rotation angle of the support assembly can be collected by an angle encoder to control the rotation angle of the support platform and the spray column. This allows the device to adjust the detection angle according to different detection requirements, improving its adjustability. Furthermore, by installing support rods and feet with footed feet and negative pressure suction cups around the base, the device can remain stable under different ground conditions, enhancing its adaptability and preventing instability from affecting the normal operation of the detection work. This improves the reliability and practicality of the device in actual use. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the assembled structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the driving component of this utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the buffer component of this utility model;

[0028] Figure 4 This is a schematic diagram of the mounting ring of this utility model;

[0029] Figure 5 This is a schematic diagram of the principle framework of this utility model.

[0030] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0031] 111. Base; 121. Turbine; 122. Worm gear; 123. Drive motor; 131. Support platform; 132. Electric push rod; 133. Spray column; 134. Guide rail; 141. Damping rod; 142. Fixing plate; 143. Mounting ring; 144. Spring; 145. Buffer ring; 146. Isolation sleeve; 147. Spray pipe; 148. Slider; 149. Support column; 151. Water gun nozzle; 161. Laser rangefinder sensor; 162. Control module; 163. Angle encoder; 164. Pressure sensor; 165. Image acquisition module; 171. Quick-release connector; 18. Protective cover; 181. Guide surface; 182. Filter screen; 191. Support rod; 192. Foot; 193. Negative pressure suction cup; 194. Support foot. Detailed Implementation

[0032] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the technical solution of this utility model, but should not be used to limit the scope of protection of this utility model. Example:

[0033] like Figures 1 to 5 As shown, this utility model provides an adjustable fire hose spray distance detection device, including a base 111, on which a support assembly and a drive component for driving the support assembly to rotate are provided.

[0034] Specifically, the rotation drive function of the support component was implemented, enabling the device to adjust the detection direction and expand the detection coverage of the device.

[0035] For example, in detection scenarios requiring different angles, the drive component can rotate the support assembly, eliminating the need for manual large-scale movement of the entire device, thus enabling the detection of water gun spray distances in different directions.

[0036] Furthermore, the base 111 is equipped with wheels on both sides, enabling convenient movement of the device and allowing it to be transferred between different testing sites, thus improving the device's mobility.

[0037] The support assembly includes a support platform 131, an electric push rod 132, and a spray column 133. The spray column 133 is connected to the support platform 131 via a rotating shaft. One end of the electric push rod 132 is hinged to the support platform 131, and the other end is connected to the spray column 133, forming an elevation angle adjustment structure.

[0038] Specifically, the elevation angle of the spray column was adjusted to 133°, enabling the device to simulate various elevation angles of fire hoses in actual use.

[0039] For example, when simulating high-rise firefighting scenarios, the spray column 133 can be adjusted to a larger elevation angle to test the spray distance at that angle, providing more realistic data for actual firefighting operations.

[0040] The spray column 133 is equipped with a buffer assembly, which includes two sets of damping rods 141 symmetrically arranged on both sides of the spray column 133. A fixing plate 142 is installed on the movable rod of the two sets of damping rods 141. A spray pipe 147 is inserted inside the spray column 133. A water gun nozzle 151 is provided on the fixing plate 142.

[0041] Specifically, it buffers the impact force of the water jet, making the device more stable during the testing process and improving the service life of the device components and the reliability of the test results.

[0042] For example, when the fire hose starts spraying, the high-pressure water jet is ejected at high speed from the nozzle 151, generating recoil and impact force. This impact force is first transmitted to the fixed plate 142 connected to the nozzle 151. Under the action of the impact force, the fixed plate 142 attempts to drive the damping rod 141 connected to it to move.

[0043] At this point, the damping rod 141 comes into play. The damping rod 141 is typically filled with a damping medium. During the movement of the moving rod, the damping medium generates a damping force, hindering the rapid movement of the moving rod and thus reducing the swaying of the fixed plate 142. Simultaneously, the jet pipe 147 within the jet column 133 also vibrates due to the impact of the water flow, but because it is restricted by the fixed plate 142 supported by the damping rods 141 on both sides, the amplitude of the vibration is also reduced.

[0044] During this process, the damping rod 141 reduces the impact of the impact force on the jet column 133, the water gun nozzle 151, and the entire device, preventing loosening of connections between components due to excessive impact force and extending the service life of components such as the jet column 133 and the water gun nozzle 151. Furthermore, the stable structure allows detection components such as the laser rangefinder 161 to measure the landing distance of the water jet, improving the reliability of the detection results.

[0045] The spray column 133 is equipped with a detection component, which includes a laser rangefinder 161 for measuring the landing distance of the water jet from the water gun and a data processing module for receiving and processing the data measured by the laser rangefinder 161.

[0046] Specifically, it enables the measurement and data processing of the distance between the landing point of the water jet from the water gun, allowing the device to acquire detection data and improving detection efficiency and data availability.

[0047] Furthermore, when the fire hose sprays water, the laser rangefinder 161 emits a laser beam towards the point where the water will land. The laser beam reflects back after encountering an object at the point of impact and is received by the laser rangefinder 161. The optical and electronic components inside the sensor convert the optical signal into an electrical signal, which carries the time information from the emission of the laser to the reception of the reflected laser. Based on the constant speed of light and the round-trip time of the laser beam, the laser rangefinder 161 can preliminarily calculate the distance between itself and the point of impact. Subsequently, this distance data is transmitted as an electrical signal to the data processing module via a data transmission line.

[0048] The buffer assembly also includes multiple sets of mounting rings 143, which are sleeved on the spray column 133. Adjacent mounting rings 143 are connected to buffer rings 145 by springs 144, and the multiple sets of mounting rings 143 are provided with isolation sleeves 146.

[0049] Specifically, it achieves multi-level buffering function, improves the buffering effect against impact, and further enhances the stability and reliability of the device.

[0050] Furthermore, when the fire hose sprays water and generates impact force, this impact force will first act on the fixed plate 142 connected to the nozzle 151. The fixed plate 142 will transmit the impact force to the damping rod 141 connected to it, and will also indirectly transmit it to the mounting ring 143 sleeved on the spray column 133.

[0051] Because there are multiple sets of mounting rings 143, and adjacent mounting rings 143 are connected to buffer rings 145 via springs 144, a multi-stage buffer structure is formed. The mounting ring 143 closest to the water gun nozzle 151 is the first to feel the impact force. Under the action of the impact force, the mounting ring 143 compresses the spring 144 connected to it. The spring 144 undergoes elastic deformation under force, converting part of the impact force into elastic potential energy for storage. The buffer ring 145 also assists the spring 144 in dispersing the impact force during this process. At the same time, the isolation sleeve 146 can prevent direct friction and collision between adjacent mounting rings 143, avoiding damage to the mounting rings 143 due to long-term friction and ensuring the stability of the buffer structure.

[0052] As the impact force is transmitted, subsequent mounting rings 143 are affected in sequence. The springs 144 and buffer rings 145 between each mounting ring 143 repeat the aforementioned buffering process. Through this multi-stage buffering method, the impact force generated by the water jet is gradually dispersed and absorbed. Compared to a single buffer structure, this multi-stage buffering function can mitigate the impact of the impact force on the device, thereby further improving the stability of the device during the testing process. This ensures that components will not loosen or be damaged due to excessive impact force, improving the reliability of the device and guaranteeing the smooth progress of the testing work and the accuracy of the test results.

[0053] The spray column 133 is provided with a stop post 149, and a set of mounting rings 143 are connected to the stop post 149 by spring 144 and buffer ring 145.

[0054] Specifically, it achieves the limitation and positioning of the movement range of the buffer component, making the device more stable and orderly during the buffering process, and improving the working efficiency and reliability of the buffer component.

[0055] Furthermore, when the impact force generated by the water jet is transmitted to the buffer assembly, the mounting ring 143 will undergo a certain degree of displacement under the action of the spring 144 and the buffer ring 145. At this time, the abutment 149, which is connected to one of the mounting rings 143 through the spring 144 and the buffer ring 145, begins to function.

[0056] The abutment 149 is fixed to the injection column 133, limiting excessive movement of the mounting ring 143. When the mounting ring 143 moves towards the abutment 149 under impact, the spring 144 is compressed, and the buffer ring 145 assists in dispersing the force. Once the displacement of the mounting ring 143 reaches a certain level, the abutment 149 prevents it from moving further, avoiding excessive compression of the spring 144 and loss of elasticity or damage to the buffer assembly structure. When the impact force disappears or weakens, the mounting ring 143 returns to its original position under the elastic force of the spring 144. The abutment 149 also ensures that the mounting ring 143 returns to its initial position, ensuring consistency in each buffering process. This positioning function allows the buffer assembly to operate stably and orderly when facing repeated impact forces.

[0057] A buffer chamber is formed inside the spray column 133. Two sets of guide rails 134 are symmetrically arranged at the top of the buffer chamber. Slider blocks 148 are provided on both sides of the mounting ring 143. The sliders 148 are slidably connected to the guide rails 134.

[0058] Specifically, it achieves guidance and stability of the movement of the mounting ring 143, making the operation of the buffer assembly smoother and improving the buffering effect and the overall stability of the device.

[0059] For example, during the buffering process, the slider 148 slides along the guide rail 134 to ensure that the mounting ring 143 moves in the correct direction and avoids offset that could cause buffering failure.

[0060] The spray pipe 147 is connected to the water gun nozzle 151 via a quick-release connector 171, and a pressure sensor 164 for monitoring water flow pressure is installed on the spray pipe 147.

[0061] Specifically, it enables rapid replacement of the water gun nozzle 151 and monitoring of water flow pressure, allowing the device to adapt to the detection of different types of nozzles and obtain detection data.

[0062] Furthermore, the quick-release connector 171 facilitates rapid replacement of the nozzle 151 during testing to meet different testing requirements. For example, when testing fire hoses of different models, specifications, or functions, such as DC nozzles and spray nozzles, personnel do not need to use complex tools or spend a lot of time disassembling and installing. They can simply operate the quick-release connector 171 to complete the nozzle replacement in a short time, improving the efficiency of the testing work. This convenient replacement method allows the device to adapt to diverse nozzle testing scenarios, meeting the needs of fire hose manufacturers, testing institutions, and others for performance testing of different nozzles.

[0063] The pressure sensor 164, installed on the spray pipe 147, monitors the water pressure flowing from the spray pipe 147 to the nozzle 151. During fire hose spraying, the pressure sensor 164 converts the water pressure into an electrical signal and transmits it to the data processing module. The data processing module analyzes and processes this pressure data, and combined with the spray distance data measured by the laser rangefinder 161, allows operators to gain a deeper understanding of the relationship between water pressure and spray distance. For example, by comparing the spray distance under different pressures, the performance of the fire hose under different operating pressures can be evaluated, providing data support for the optimized design, performance improvement, and operational guidance of the fire hose in practical use.

[0064] The data processing module includes a control module 162 and an image acquisition module 165. The image acquisition module 165 is installed on one side of the support platform 131, and the control module 162 is installed on the base 111.

[0065] Specifically, the control module 162 realizes the analysis and processing of the detection data, enabling the device to not only acquire basic data such as distance and pressure, but also to perform in-depth analysis in combination with image information, providing a basis for the performance evaluation of fire hoses.

[0066] For example, during the detection of fire hose spray distance, the image acquisition module 165 records the shape of the water jet, such as the dispersion of the water flow and the continuity of the water column. The control module 162 receives spray distance data measured by the laser rangefinder 161 and water pressure data monitored by the pressure sensor 164, and also acquires image data from the image acquisition module 165. The control module 162 uses a preset algorithm to comprehensively analyze this multi-dimensional data. For example, by analyzing the correlation between water flow shape and spray distance under different pressures, it determines the performance of the fire hose under different operating conditions. This helps to discover problems that are difficult to detect using only distance and pressure data, such as reduced spray efficiency due to abnormal water flow shape. This provides more targeted and practical suggestions for the optimized design, troubleshooting, and practical use of the fire hose, improving the quality and significance of the entire detection work. The pressure sensor 164 can be an HDA4745-A-016-000 model pressure sensor. The image acquisition module 165 can be a DS-2CD2T47G0-I model industrial camera. The control module 162 can be a SIMATIC IPC227D industrial computer, and the laser rangefinder 161 can be a DT50-P2111 laser rangefinder.

[0067] The laser rangefinder 161 is mounted on the top of the mounting plate 142, and the mounting plate 142 is provided with a protective cover 18, with the laser rangefinder 161 located inside the protective cover 18.

[0068] Specifically, the laser rangefinder 161 is protected, enabling the device to operate stably in complex detection environments and improving the service life of the laser rangefinder 161 and the accuracy of the detection data.

[0069] For example, in actual fire hose spray distance detection scenarios, the water jet from the fire hose may splash, and the surrounding environment may contain dust and other impurities. The protective cover 18 can prevent splashing water from directly contacting the laser rangefinder 161, preventing short circuits or damage to the sensor's internal circuitry due to water intrusion. Simultaneously, the protective cover 18 can also provide some protection against environmental dust, preventing dust from adhering to the sensor's optical components and affecting laser emission and reception, thereby ensuring the sensor can accurately measure the distance to the point of impact of the sprayed water.

[0070] The protective cover 18 has a window that is only open in the direction of the water flow point for laser emission and reception.

[0071] Specifically, it achieves the guidance of laser signals and shielding against external interference, enabling the device to measure the landing distance of the water jet from the water gun, thus improving the accuracy and stability of laser ranging.

[0072] For example, during fire hose spray distance detection, various stray lights may exist in the surrounding environment. Without a dedicated window, these stray lights might enter the protective housing 18 and interfere with the normal operation of the laser rangefinder 161, leading to measurement deviations. By opening a window only facing the water flow point, the laser beam emitted by the laser rangefinder 161 is ensured to be directed towards the water flow point, and the laser signal reflected back from the point of impact is received. Thus, even under complex ambient light conditions, the laser rangefinder 161 can still focus on measuring the target point, avoiding interference from light from other directions and improving the accuracy of the measurement data.

[0073] The protective cover 18 has an inclined airflow guide surface 181 at the front end, and multiple sets of heat dissipation holes are opened on one side of the protective cover 18. A filter screen 182 is installed in the heat dissipation hole 1.

[0074] Specifically, it achieves multiple functions such as waterproofing, heat dissipation, and dustproofing, enabling the device to operate stably in harsh outdoor detection environments and improving the reliability of the laser rangefinder sensor 161 in its working environment and the overall durability of the equipment.

[0075] For example, when testing the distance of a fire hose spray in the outdoors, when the water jet from the hose produces a large amount of water splashing onto the protective cover 18, the inclined guide surface 181 can guide the water flow down the slope, preventing water from accumulating on the protective cover 18. This prevents water from seeping into the interior of the protective cover 18 through the heat dissipation holes or other gaps, thus preventing damage to the laser rangefinder 161 and ensuring that the sensor can work stably in a dry environment.

[0076] Meanwhile, the laser rangefinder 161 generates heat during prolonged operation. If this heat cannot be dissipated in time, it will affect the sensor's performance and lifespan. Multiple sets of heat dissipation holes promote airflow, carrying away heat from the protective cover 18 and maintaining a suitable operating temperature for the sensor. The filters 182 installed inside the heat dissipation holes serve a dustproof function, allowing airflow for heat dissipation while preventing fine particles such as dust and sand from entering the protective cover 18, thus avoiding dust accumulation on the laser rangefinder 161 and affecting its optical performance and measurement accuracy.

[0077] The base 111 has multiple sets of support rods 191 around its perimeter. Support feet 194 are installed on the multiple sets of support rods 191. Support feet 194 are equipped with multiple sets of feet 192 and negative pressure suction cups 193.

[0078] Specifically, it achieves stable support and reliable fixation of the device under different ground conditions, enabling the device to adapt to diverse testing sites and improving the stability of device placement and the reliability of testing work.

[0079] For example, when testing the spray distance of fire hoses on relatively flat and smooth surfaces, such as indoor tiled floors or relatively flat cement floors, the negative pressure suction cup 193 can play a major role. By squeezing out the air, the negative pressure suction cup 193 adheres to the ground and uses atmospheric pressure to firmly attach to the ground, preventing the device from sliding or shifting under the impact force generated by the water jet. This ensures that the device remains stable throughout the testing process, thereby guaranteeing the accuracy of the test data.

[0080] When the testing site is a rough and uneven surface, such as outdoor dirt or a pitted training ground, the feet 192 become particularly important. Multiple feet 192 can increase the contact area between the support feet 194 and the ground, distribute the weight of the device, and keep the device balanced even on uneven ground. This prevents the device from tilting or wobbling due to uneven ground, ensuring that the testing work is not affected.

[0081] The driving components include a turbine 121, a worm gear 122, and a drive motor 123. Both the turbine 121 and the worm gear 122 are installed inside the base 111, and the turbine 121 meshes with the worm gear 122. The drive motor 123 is installed on one side of the base 111, and the worm gear 122 is connected to the output shaft of the drive motor 123.

[0082] Specifically, it realizes the control and drive of the rotational motion of the support components, enabling the device to adjust the rotation angle of the support platform 131 and the spray column 133 according to the detection requirements.

[0083] For example, when detecting the spray distance of fire hoses in different directions, the operator controls the drive motor 123. The output shaft of the drive motor 123 drives the worm gear 122 to rotate. Since the worm gear 122 meshes with the turbine gear 121, the rotation of the worm gear 122 drives the turbine gear 121 to rotate, which in turn drives the support assembly connected to the turbine gear 121 to rotate. The transmission between the turbine gear 121 and the worm gear 122 has the characteristics of a large transmission ratio and good self-locking performance. Even with a relatively small power of the drive motor 123, it can provide sufficient torque to the support assembly to ensure its stable rotation. For example, in simulating scenarios where fire hoses spray in different directions, the support platform 131 and the spray column 133 can be rotated to a specified angle with minimal error, ensuring the acquisition of spray distance data.

[0084] The bottom of the support platform 131 is equipped with an angle encoder 163 for collecting the rotation angle of the support assembly. The angle encoder 163 is coaxially connected to the turbine 121.

[0085] For example, when the drive component rotates the support assembly, the angle encoder 163, coaxially connected to the turbine 121, rotates synchronously. The angle encoder 163 converts the rotation angle of the support assembly into an electrical signal and transmits it to the data processing module. The data processing module can record the rotation angle of the support platform 131 and the spray column 133 during each test based on these signals. Suppose that in a series of tests, it is necessary to compare the spray distance of the fire hose at different angles. Through the angle data provided by the angle encoder 163, personnel can understand the specific angle corresponding to each spray distance, facilitating systematic analysis of the test results. Moreover, when reviewing or further studying the test data, this angle information can provide a basis for analyzing the relationship between spray distance and angle, enhancing the value and reliability of the test data. The angle encoder 163 can be an E6B2-CWZ6C model angle encoder.

[0086] The specific usage and function of this embodiment are as follows:

[0087] When using the adjustable fire hose nozzle spray distance detection device, first push the device to the testing site. Depending on the ground conditions, place it using the feet 192 of the support legs 194 around the base 111 or the negative pressure suction cup 193. Connect the nozzle 151 to be tested to the spray pipe 147 inside the spray column 133 via the quick-release connector 171. The pressure sensor 164 on the spray pipe 147 begins to monitor the water flow pressure. Turn on the power to start the drive motor 123. The motor drives the worm gear 122 to rotate, which in turn drives the meshing turbine 121, thereby rotating the support assembly. At the same time, the angle encoder 163 collects the rotation angle of the support assembly. Adjust the elevation angle of the spray column 133 using the electric push rod 132 to form a suitable detection angle. When the fire hose is activated, the impact force generated by the spray is buffered by a buffer assembly consisting of damping rods 141 symmetrically arranged on both sides of the spray column 133, fixed plates 142 mounted on the movable rods of the two sets of damping rods 141, multiple sets of mounting rings 143 sleeved on the spray column 133, adjacent mounting rings 143 connected to buffer rings 145 by springs 144, and isolation sleeves 146 provided on the multiple sets of mounting rings 143 for coordinated buffering. A laser rangefinder 161 emits a laser towards the water flow landing point and receives the reflected light to measure the distance to the landing point. The data is transmitted to the data processing module, while the image acquisition module 166 records the water flow pattern. The control module 162 comprehensively processes this data and performs operations such as display and storage.

[0088] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments.

Claims

1. An adjustable fire hose spray distance detection device, comprising a base (111), characterized in that: The base (111) is provided with a support assembly and a drive component for driving the support assembly to rotate; The support assembly includes a support platform (131), an electric push rod (132), and a jet column (133). The spray column (133) is connected to the support platform (131) via a rotating shaft. One end of the electric push rod (132) is hinged to the support platform (131), and the other end is connected to the spray column (133), forming an elevation angle adjustment structure. The spray column (133) is provided with a buffer assembly, which includes two sets of damping rods (141) symmetrically arranged on both sides of the spray column (133). A fixing plate (142) is installed on the movable rod of the two sets of damping rods (141). A spray pipe (147) is inserted inside the spray column (133). A water gun nozzle (151) is provided on the fixing plate (142). The spray column (133) is provided with a detection component, which includes a laser rangefinder (161) for measuring the landing distance of the water jet from the water gun and a data processing module for receiving and processing the data measured by the laser rangefinder (161).

2. The adjustable fire hose spray distance detection device according to claim 1, characterized in that: The buffer assembly also includes multiple sets of mounting rings (143), which are sleeved on the jet column (133). Adjacent mounting rings (143) are connected to buffer rings (145) by springs (144), and the multiple sets of mounting rings (143) are provided with isolation sleeves (146). The jet column (133) is provided with a stop post (149), and a set of mounting rings (143) are connected to the stop post (149) through the spring (144) and the buffer ring (145).

3. The adjustable fire hose spray distance detection device according to claim 2, characterized in that: A buffer cavity is formed inside the spray column (133). Two sets of guide rails (134) are symmetrically arranged on the top of the buffer cavity. Slider blocks (148) are provided on both sides of the mounting ring (143). The sliders (148) are slidably connected to the guide rails (134).

4. The adjustable fire hose spray distance detection device according to claim 3, characterized in that: The spray pipe (147) is connected to the water gun nozzle (151) via a quick-release connector (171), and a pressure sensor (164) for monitoring water flow pressure is installed on the spray pipe (147).

5. The adjustable fire hose spray distance detection device according to claim 4, characterized in that: The data processing module includes a control module (162) and an image acquisition module (165). The image acquisition module (165) is installed on one side of the support platform (131), and the control module (162) is installed on the base (111).

6. The adjustable fire hose spray distance detection device according to claim 5, characterized in that: The laser rangefinder (161) is mounted on the top of the fixed plate (142), and the fixed plate (142) is provided with a protective cover (18), and the laser rangefinder (161) is located inside the protective cover (18); The protective cover (18) has a window that is only open in the direction of the water flow point for laser emission and reception.

7. The adjustable fire hose spray distance detection device according to claim 6, characterized in that: The protective cover (18) has an inclined guide surface (181) at the front end, and multiple sets of heat dissipation holes are opened on one side of the protective cover (18), and a filter screen (182) is provided in the heat dissipation hole.

8. The adjustable fire hose spray distance detection device according to claim 7, characterized in that: The base (111) is provided with multiple sets of support rods (191) around its perimeter. Support feet (194) are installed on the multiple sets of support rods (191). Multiple feet (192) and negative pressure suction cups (193) are provided on the support feet (194).

9. The adjustable fire hose spray distance detection device according to claim 1, characterized in that: The driving component includes a turbine (121), a worm (122), and a drive motor (123). The turbine (121) and the worm (122) are both installed in the base (111). The turbine (121) meshes with the worm (122). The drive motor (123) is installed on one side of the base (111). The worm (122) is connected to the output shaft of the drive motor (123).

10. The adjustable fire hose spray distance detection device according to claim 9, characterized in that: The bottom of the support platform (131) is provided with an angle encoder (163) for collecting the rotation angle of the support assembly, and the angle encoder (163) is coaxially connected to the turbine (121).

Images