Injection performance testing device suitable for tear injector

Abstract

The utility model relates to an ejection performance testing device suitable for a tear ejector, which comprises a data acquisition module, a telescopic box body and a clamping module, a liftable movable base is arranged at the bottom of the telescopic box body, the telescopic box body comprises a first box body and a second box body, the second box body is sleeved with the first box body and is telescopically connected with the first box body, and the clamping module is arranged on the first box body. The data acquisition module is arranged in the first box body and supports horizontal movement, the clamping module fixes the ejector and faces the data acquisition module located in the telescopic box body, the data acquisition module comprises a target plate, a sensor and a timer, the sensor and the timer are arranged on the target plate, and the sensor is electrically connected with the timer. According to the injection performance testing device suitable for the tear injector, the length in the horizontal direction can be freely changed through the telescopic box body in a telescopic mode, the testing distance can be freely adjusted, and the injection performance testing device can be contracted, so that the size is reduced, and the injection performance testing device is convenient to store.

Description

Technical Field

[0001] This utility model relates to the technical field of police equipment testing devices, and more particularly to the field of tear gas sprayers, specifically referring to a spray performance testing device suitable for tear gas sprayers. Background Technology

[0002] With economic transformation and social transition, low-intensity, non-confrontational conflicts have led to a significant increase in various types of mass incidents affecting public security, making the performance of police equipment crucial. Tear gas spray, as an important piece of equipment for individual police officers, requires high standards for its spray distance and continuous spraying time.

[0003] Currently, in the testing of tear gas spray performance, the spray time is mainly measured manually with a stopwatch. Especially during performance comparison tests in bidding, the data reading error is large, which can easily raise questions about fairness and impartiality. When testing long-distance spray, the testing equipment used is limited in distance, or occupies a lot of space and is inconvenient to move. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a simple, easy-to-operate, and reliable testing device for testing the spray performance of tear gas sprayers.

[0005] To achieve the above objectives, the present invention provides a spray performance testing device suitable for tear gas sprayers as follows:

[0006] The main features of this tear gas spray performance testing device are as follows: the device includes a data acquisition module, a retractable housing, and a clamping module. The bottom of the retractable housing is provided with a liftable and movable base. The retractable housing includes a first housing and a second housing fitted together and retractably connected. The data acquisition module is disposed in the first housing and supports horizontal movement. The clamping module fixes the sprayer and faces the data acquisition module located inside the retractable housing. The acquisition module includes a target plate and a sensor and a timer disposed on the target plate. The sensor and the timer are electrically connected.

[0007] Preferably, both the first and second boxes are box-shaped structures with hollow interiors and open ends. The inner walls of the first box are provided with slide rails on both sides, and the outer wall of the second box is provided with slide grooves corresponding to the slide rails. One end of the second box is embedded into the slide rail on the first box through the slide groove, and the other end is provided with a handle. By pulling the handle, the slide rail and the slide groove cooperate, and the second box and the first box can move relatively close or relatively far apart.

[0008] Preferably, both the first and second boxes are made of transparent PC and are marked with scales along their length.

[0009] Preferably, the second box body has a box door at the opening end away from the first box body, and the box door is hinged to the second box body to close the opening end;

[0010] The first box body has a box cover at the opening end away from the second box body. One end of the box cover is hinged to the second box body, and the other end is connected to the second box body through a cover lock. The box cover closes the opening end.

[0011] Preferably, a first baffle and a second baffle are respectively provided on the end of the first housing away from the housing cover and the end of the second housing away from the housing door. The first baffle and the second baffle cooperate to abut against each other when the first housing and the second housing are extended to the maximum and minimum stroke, respectively, thereby limiting the extension stroke.

[0012] Preferably, the liftable and movable base includes a plurality of telescopic movable support parts, which are evenly arranged at the bottom of the first housing and the second housing;

[0013] The telescopic movable support includes a telescopic bracket, a pulley, and a locking mechanism mounted on the pulley. One end of the telescopic bracket is connected to the bottom of the telescopic box, and the other end is connected to the pulley.

[0014] Preferably, the clamping module is arranged adjacent to the box door. The clamping module includes a clamping mechanism, a telescopic support frame and a pulley block. The two ends of the telescopic support frame are respectively connected to the clamping mechanism and the pulley block. The clamping mechanism corresponds to and is fixedly connected to the injector structure.

[0015] Preferably, the target plate is in the shape of an inverted T, and the target plate is movably disposed in the first housing;

[0016] The target plate includes a horizontal part and a vertical part connected to the horizontal part. The two ends of the horizontal part are respectively movably mounted on slide rails on both sides of the inner wall of the first box. A handle is provided on one side of the horizontal part. The first box is provided with a sliding groove along its length for the handle to extend out. The handle can be slidably placed in the sliding groove and extends outward from the sliding groove.

[0017] Preferably, the testing device further includes a liquid storage box, a support is provided on the horizontal portion of the target plate, the liquid storage box is built into the support, and the liquid storage box can move with the target plate; the first box body has an opening on its side.

[0018] The spray performance testing device for tear gas sprayers, which adopts this utility model, uses a telescopic housing that can freely extend and retract to change its horizontal length. This not only allows for free adjustment of the test distance but also reduces its volume for easy storage by shrinking the housing. The acquisition module consists of a target plate, a sensor mounted on the target plate, and a timer. The sensor can generate start and stop signals based on whether the target plate is impacted and send them to the counter, resulting in small test error and high reliability. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the spray performance testing device for tear gas sprayers according to this utility model.

[0020] Figure 2 This is a schematic diagram of the data acquisition module of the spray performance testing device for tear gas sprayers according to this utility model.

[0021] Figure label:

[0022] 100 Data Acquisition Module

[0023] 200 retractable enclosure

[0024] 300 clamping module

[0025] 400 Adjustable and Movable Base

[0026] 500 Liquid Storage Box

[0027] 110 target plate

[0028] 111 controller

[0029] 120 sensor

[0030] 130 timer

[0031] 210 First Box

[0032] 211 slide rail

[0033] 212 Box Lid

[0034] 213 cover lock

[0035] 214 First Baffle

[0036] 220 Second Box

[0037] 221 Slide

[0038] 222 grip

[0039] 223 Box Door

[0040] 224 Second baffle

[0041] 310 clamping mechanism

[0042] 320 telescopic support frame

[0043] 330 pulley block

[0044] 410 Telescopic Moving Support

[0045] 411 Telescopic Bracket

[0046] 412 pulley

[0047] 413 Locking Mechanism

[0048] 510 support Detailed Implementation

[0049] To more clearly describe the technical content of this utility model, the following description is provided in conjunction with specific embodiments.

[0050] This utility model discloses a spray performance testing device for tear gas sprayers, which includes a data acquisition module, a retractable housing, and a clamping module. The bottom of the retractable housing is provided with a liftable and movable base. The retractable housing includes a first housing and a second housing fitted together and retractably connected. The data acquisition module is disposed in the first housing and supports horizontal movement. The clamping module fixes the sprayer and faces the data acquisition module located in the retractable housing. The acquisition module includes a target plate and a sensor and a timer disposed on the target plate. The sensor and the timer are electrically connected.

[0051] In a preferred embodiment of the present invention, both the first box and the second box are box-shaped structures with hollow interiors and open ends. The inner walls of the first box are provided with slide rails on both sides, and the outer wall of the second box is provided with slide grooves corresponding to the slide rails. One end of the second box is embedded into the slide rail on the first box through the slide groove, and the other end is provided with a handle. By pulling the handle, the slide rail and the slide groove cooperate, and the second box and the first box can move relatively close to each other or relatively far apart.

[0052] In a preferred embodiment of the present invention, both the first box and the second box are made of PC transparent box and are respectively provided with scales along their length.

[0053] In a preferred embodiment of the present invention, the second box body is provided with a box door at the opening end away from the first box body, and the box door is hinged to the second box body to close the opening end;

[0054] The first box body has a box cover at the opening end away from the second box body. One end of the box cover is hinged to the second box body, and the other end is connected to the second box body through a cover lock. The box cover closes the opening end.

[0055] In a preferred embodiment of the present invention, a first baffle and a second baffle are respectively provided on the end of the first box away from the box cover and the end of the second box away from the box door. The first baffle and the second baffle cooperate to abut against each other when the first box and the second box are extended to the maximum and minimum strokes, thereby limiting the extension stroke.

[0056] In a preferred embodiment of the present invention, the liftable and movable base includes several telescopic movable support parts, which are evenly arranged at the bottom of the first box and the second box.

[0057] The telescopic movable support includes a telescopic bracket, a pulley, and a locking mechanism mounted on the pulley. One end of the telescopic bracket is connected to the bottom of the telescopic box, and the other end is connected to the pulley.

[0058] In a preferred embodiment of this utility model, the clamping module is arranged adjacent to the box door. The clamping module includes a clamping mechanism, a telescopic support frame and a pulley block. The two ends of the telescopic support frame are respectively connected to the clamping mechanism and the pulley block. The clamping mechanism corresponds to the injector structure and is fixedly connected to it.

[0059] In a preferred embodiment of the present invention, the target plate is generally inverted T-shaped, and the target plate is movably disposed in the first housing;

[0060] The target plate includes a horizontal part and a vertical part connected to the horizontal part. The two ends of the horizontal part are respectively movably mounted on slide rails on both sides of the inner wall of the first box. A handle is provided on one side of the horizontal part. The first box is provided with a sliding groove along its length for the handle to extend out. The handle can be slidably placed in the sliding groove and extends outward from the sliding groove.

[0061] In a preferred embodiment of this utility model, the testing device further includes a liquid storage box, a support is provided on the horizontal part of the target plate, the liquid storage box is built into the support, and the liquid storage box can move with the target plate; the first box body has an opening on its side.

[0062] In a specific embodiment of this utility model, a spray performance testing device suitable for tear gas sprayers is provided. By adopting a retractable box and setting a data acquisition module inside the box, its overall structure is simple, easy to operate, and the test results have small errors and high reliability.

[0063] See Figure 1 The diagram shows a structural schematic of the spray performance testing device for tear gas sprayers provided by this utility model.

[0064] As shown in the figure, the spray performance testing device for tear gas sprayers provided by this utility model includes three components: a data acquisition module 100, a retractable housing 200, and a clamping module 300.

[0065] The retractable housing 200 is the main structural component of the testing device provided by this utility model, used to support other components and has a closed cavity inside for spray performance testing.

[0066] The retractable box 200 is equipped with a liftable and movable base 400 at the bottom. The liftable and movable base 400 enables the retractable box 200 to move freely and adjust its vertical height, which greatly improves the applicability and convenience of the device.

[0067] The telescopic enclosure 200 includes a first enclosure 210 and a second enclosure 220 that is fitted to and telescopically connected to the first enclosure 210. Both can be extended or retracted in the horizontal direction, thereby adjusting the length of the telescopic enclosure 200 and adjusting the test distance during performance testing.

[0068] The data acquisition module 100 is horizontally movable and is installed in the first housing 210. The clamping module 300 is used to fix the sprayer so that it sprays toward the acquisition module 100 located in the telescopic housing 200.

[0069] The acquisition module 100 includes a target plate 110, a sensor 120 and a timer 130 disposed on the target plate 110. The sensor 120 and the timer 130 are electrically connected. When the target plate 110 is impacted, the sensor 120 can sense it and send a start signal to the timer 130. At this time, the timer 130 starts timing. When the impact on the target plate 110 disappears, the sensor 120 senses it and sends a stop signal to the timer 130. At this time, the timer 130 stops timing.

[0070] Compared to the existing method of manually timing continuous spraying, this solution uses the aforementioned acquisition module 100 to acquire spraying time. Simply spray the nozzle towards the target plate 110, and the sensor 120 on the target plate 110 will detect the signal and send a start signal to the timer 130 to begin timing. When the spray gun stops spraying and the impact on the target plate 110 disappears, the sensor 120 detects the disappearance of the impact and sends a stop signal to the timer 130, indicating the end of the spray gun performance test. The tester can then observe the timer 130 to determine the continuous spraying time. This method offers small error, high reliability, and convenient operation.

[0071] In this example, sensor 120 can be a piezoresistive pressure sensor. When external pressure is applied, the piezoelectric element inside the piezoresistive pressure sensor undergoes bending deformation. This deformation causes a change in the charge distribution inside the piezoelectric element, thereby generating a potential difference, which can detect electrical signals.

[0072] Based on this, since the target plate 110 is equipped with a piezoresistive pressure sensor, this testing device can also test the impact force of high-speed jet liquid. By connecting the piezoresistive pressure sensor to a mobile terminal, when the sensor senses the pressure, it can not only send a start signal to the counter 130, but also transmit the pressure data to the mobile terminal. Thus, it can not only test the continuous spraying time of the ejector, but also test the impact force of the liquid.

[0073] Specifically, both the first box 210 and the second box 220 are box-shaped structures with hollow interiors and open ends. The inner walls of the first box 210 are provided with slide rails 211 on both sides, and the outer walls of the second box 220 are provided with slide grooves 221 corresponding to the slide rails 211. One end of the second box 220 is embedded into the slide rail 211 on the first box 210 through the slide groove 221, and the other end is provided with a handle 222. By pulling the handle 222, the slide rail 211 and the slide groove 221 cooperate, and the second box 220 and the first box 210 can move relatively closer and relatively farther apart, thereby adjusting the overall horizontal length of the telescopic box 200.

[0074] In this example, both the first chamber 210 and the second chamber 220 are preferably made of PC transparent chambers and have scales along their length. The use of transparent chambers allows the internal testing conditions and the data of the timer 130 inside the chamber to be directly observed from the outside. The scales allow the current testing distance to be determined directly by observation, which greatly improves the ease of operation of the testing device.

[0075] The second box 220 has a box door 223 at the opening end away from the first box 210. The box door 223 is hinged to the second box 220 to close the opening end.

[0076] The first box 210 has a box cover 212 at the opening end away from the second box 220. One end of the box cover 212 is hinged to the second box 220, and the other end is connected to the second box 220 through a cover lock 213. The box cover 212 closes the opening end and can be opened and closed through the cover lock 213.

[0077] The aforementioned box door 223 and box cover 212 can close the open ends of the telescopic box 200, so that when the test device is not in use, the external environment can be prevented from causing pollution to the inside of the telescopic box 200.

[0078] By opening the housing cover 212, the data acquisition module 100 can enter the first housing 210 through the opened housing cover 212, and the data acquisition module 100 can also be replaced or maintained by opening the housing cover 212.

[0079] During testing, the chamber door 223 is opened, and the sprayer sprays from the open chamber door 223 toward the acquisition module 100. The chamber cover 212 is closed at this time, which can prevent liquid from flowing out of the chamber cover 212 to the outside.

[0080] To improve the reliability of the telescopic housing 200 during extension and retraction, this design provides corresponding limiting structures for the first housing 210 and the second housing 220 to prevent detachment during extension and retraction. The first housing 210, away from the housing cover 212, and the second housing 220, away from the housing door 223, are respectively provided with a first baffle 214 and a second baffle 224. The first baffle 214 and the second baffle 224 cooperate to abut against each other when the first housing 210 and the second housing 220 are extended to their maximum and minimum strokes, respectively, to limit the extension and retraction stroke and prevent them from continuing to extend and retract, thus preventing detachment.

[0081] The retractable box 200 with such structure is set on the ground by a liftable and movable base 400. Specifically, the liftable and movable base 400 includes several retractable and movable support parts 410, which are evenly arranged at the bottom of the first box 210 and the second box 220.

[0082] This solution does not limit the placement of the telescopic moving parts 410, which can be determined according to actual needs. It only needs to provide stable and reliable support for the telescopic box 200 and not affect the telescopic movement of the first box 210 and the second box 220.

[0083] The telescopic movable support 410 includes a telescopic bracket 411, a pulley 412, and a locking mechanism 413 disposed on the pulley 412. One end of the telescopic bracket 411 is connected to the bottom of the telescopic housing 200, and the other end is connected to the pulley 412. The telescopic bracket 411 can adjust its vertical height, and the locking mechanism 413 can lock the pulley 412 to prevent slippage.

[0084] This solution does not limit the structure of the telescopic bracket 411 and the locking mechanism 413. The telescopic bracket 411 and the locking mechanism 413 are conventional technologies in the field and will not be described in detail here.

[0085] The clamping module 300 is positioned adjacent to the housing door 223, so that when the housing door 223 is opened, the injector on the clamping module 300 directly sprays liquid onto the collection module 100 through the opening end.

[0086] The clamping module 300 includes a clamping mechanism 310, a telescopic support frame 320, and a pulley block 330. The telescopic support frame 320 is connected to the clamping mechanism 310 and the pulley block 330 at both ends, respectively. The clamping mechanism 310 corresponds to the structure of the injector and is used for fixed connection with it. The pulley block 330 enables the clamping mechanism 310 to move freely so that its position can be freely adjusted according to the requirements.

[0087] Furthermore, the target plate 110 is generally inverted T-shaped, and the target plate 110 is movably disposed in the first housing 210;

[0088] Specifically, the target plate 110 includes a horizontal part and a vertical part connected to the horizontal part. The two ends of the horizontal part are respectively movably mounted on slide rails 211 on both sides of the inner wall of the first housing 210. A handle 111 is provided on one side of the horizontal part. The first housing 210 has a sliding groove along its length for the handle 111 to extend out. The handle 111 is slidably placed in the sliding groove and extends outward from the sliding groove. By pulling the handle 111, the handle 111 moves horizontally along the sliding groove, thereby driving the target plate 110 connected to it to move horizontally in the first housing 210.

[0089] Because the pressure inside the injector is low and the speed of the ejected liquid is small, and the target plate 110 has a certain mass, the target plate 110 will not move inside the first housing 210 when the injector sprays the target plate 110. Alternatively, when the target plate 110 moves to a specific position, a locking cone can be placed in the slide rail 211 on the side of the target plate 110 near the housing cover 212 to prevent the target plate 110 from moving inside the first housing 210.

[0090] To further improve the environmental friendliness of the testing device, this performance testing device also includes a liquid collection box 500. A support 510 is provided on the horizontal part of the target plate 110. The liquid collection box 500 is built into the support 510. The liquid collection box 500 can move with the target plate 110 and recover the sprayed liquid.

[0091] Correspondingly, an opening is provided on the side of the first housing 210 to allow the liquid storage box 500 to enter and exit. The opening is adapted to the liquid storage box 500. In actual application, the target plate 110 is moved to the opening, and the liquid storage box 500 can be moved from the opening to the support 510 on the target plate 110. After the test is completed, the liquid storage box 500 can be pulled out from the opening.

[0092] The working process of this utility model is as follows: During testing, the tear gas sprayer is fixed on the clamping module 300, the housing door 223 is opened, the target plate 110 is adjusted to a suitable position, the telescopic support frame 320 is adjusted so that the nozzle of the tear gas sprayer can pass through the housing door 223, the timer 130 switch is turned on, the sensor 120 is connected, the tear gas sprayer switch is pressed, and when the tear gas is sprayed onto the target plate 110, it has a certain impact force on the target plate 110. The sensor 120 transmits the data to the timer 130, and the timer 130 starts timing; when the tear gas leaves the target plate 110, the target plate 110... When the impact force on the target disappears, timer 130 stops, and the precise continuous spray time is obtained through timer 130. If it is necessary to measure the continuous spray time over a relatively long distance, the second chamber 220 can be pulled out to a suitable position using handle 222. If it is necessary to replace the data acquisition module 100, open the cover lock 213 and the chamber cover 212, and slide the target plate 110 out of the first chamber 210 using handle 111. After the test, the tear gas on the target plate 110 flows into the liquid collection box 500, and can be removed and recycled through the opening on the side of the first chamber 210. It has the advantages of simple structure, convenient operation, and reliable testing.

[0093] For the specific implementation scheme of this embodiment, please refer to the relevant descriptions in the above embodiments, which will not be repeated here.

[0094] It is understood that the same or similar parts in the above embodiments can be referred to each other, and the contents not described in detail in some embodiments can be referred to the same or similar contents in other embodiments.

[0095] It should be noted that in the description of this utility model, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means at least two.

[0096] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0097] The spray performance testing device for tear gas sprayers, which adopts this utility model, uses a telescopic housing that can freely extend and retract to change its horizontal length. This not only allows for free adjustment of the test distance but also reduces its volume for easy storage by shrinking the housing. The acquisition module consists of a target plate, a sensor mounted on the target plate, and a timer. The sensor can generate start and stop signals based on whether the target plate is impacted and send them to the counter, resulting in small test error and high reliability.

[0098] In this specification, the present invention has been described with reference to specific embodiments thereof. However, it will be apparent that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, the specification and drawings should be considered illustrative rather than restrictive.

Claims

1. A device for testing the spray performance of tear gas sprayers, characterized in that, The device includes a data acquisition module, a retractable housing, and a clamping module. The bottom of the retractable housing is provided with a liftable and movable base. The retractable housing includes a first housing and a second housing that is fitted and retractably connected to the first housing. The data acquisition module is disposed in the first housing and supports horizontal movement. The clamping module fixes the injector and faces the data acquisition module located in the retractable housing. The acquisition module includes a target plate and a sensor and a timer disposed on the target plate. The sensor and the timer are electrically connected.

2. The spray performance testing device for tear gas sprayers according to claim 1, characterized in that, Both the first and second boxes are box-shaped structures with hollow interiors and open ends. The inner walls of the first box are provided with slide rails on both sides, and the outer wall of the second box is provided with slide grooves corresponding to the slide rails. One end of the second box is embedded into the slide rail on the first box through the slide groove, and the other end is provided with a handle. By pulling the handle, the slide rail and the slide groove cooperate, and the second box and the first box can move relatively close or relatively far apart.

3. The spray performance testing device for tear gas sprayers according to claim 2, characterized in that, Both the first and second boxes are made of transparent PC and have scales along their length.

4. The spray performance testing device for tear gas sprayers according to claim 2, characterized in that, The second box has a door at its opening end away from the first box, and the door is hinged to the second box to close the opening end. The first box body has a box cover at the opening end away from the second box body. One end of the box cover is hinged to the second box body, and the other end is connected to the second box body through a cover lock. The box cover closes the opening end.

5. The spray performance testing device for tear gas sprayers according to claim 2, characterized in that, The first box body is provided with a first baffle and the second box body is provided with a first baffle and a second baffle respectively at the end away from the box body cover and the end away from the box body door. The first baffle and the second baffle cooperate to abut against each other when the first box body and the second box body are extended to the maximum and minimum stroke, respectively, to limit the extension stroke.

6. The spray performance testing device for tear gas sprayers according to claim 1, characterized in that, The liftable and movable base includes several telescopic movable support parts, which are evenly arranged at the bottom of the first box and the second box. The telescopic movable support includes a telescopic bracket, a pulley, and a locking mechanism mounted on the pulley. One end of the telescopic bracket is connected to the bottom of the telescopic box, and the other end is connected to the pulley.

7. The spray performance testing device for tear gas sprayers according to claim 1, characterized in that, The clamping module is arranged adjacent to the box door. The clamping module includes a clamping mechanism, a telescopic support frame and a pulley block. The two ends of the telescopic support frame are respectively connected to the clamping mechanism and the pulley block. The clamping mechanism corresponds to the injector structure and is fixedly connected to it.

8. The spray performance testing device for tear gas sprayers according to claim 1, characterized in that, The target plate is generally inverted T-shaped and is movably disposed in the first housing; The target plate includes a horizontal part and a vertical part connected to the horizontal part. The two ends of the horizontal part are respectively movably mounted on slide rails on both sides of the inner wall of the first box. A handle is provided on one side of the horizontal part. The first box is provided with a sliding groove along its length for the handle to extend out. The handle can be slidably placed in the sliding groove and extends outward from the sliding groove.

9. The spray performance testing device for tear gas sprayers according to claim 1, characterized in that, The testing device also includes a liquid storage box, a support is provided on the horizontal part of the target plate, the liquid storage box is built into the support, and the liquid storage box can move with the target plate; the first box body has an opening on its side.

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