Law enforcement water cannon

Abstract

The invention relates to the technical field of electric water cannon, in particular to a law enforcement water cannon which comprises a cannon body main pipe connected with a flanged elbow, and the flanged elbow is connected with a cannon nozzle. The angle adjusting assembly comprises a horizontal rotation power mechanism and a pitching rotation power mechanism; the inner diameter adjusting assembly is used for adjusting the inner diameter of the gun nozzle; the length adjusting assembly comprises a detection mechanism, a driving mechanism and a telescopic pipe; when the angle of the gun nozzle is adjusted, the inner diameter of the gun nozzle can be adjusted through the inner diameter adjusting assembly, so that the water flow pressure at an outlet of the gun nozzle is controlled, and when the inner diameter is adjusted, the detection mechanism can detect the adjusting position of the inner diameter so as to control the driving mechanism to drive the telescopic pipe to stretch out and draw back; therefore, the inner diameter adjusting assembly and the inner diameter adjusting assembly act together to achieve the technical effect of rapidly adjusting the range.

Description

Technical Field

[0001] The invention relates to the technical field of electric water cannons, in particular to a law enforcement water cannon. Background Art

[0002] With the development of society, the task of ensuring national security and social stability is becoming more and more important. Driven by law enforcement tasks, non-lethal weapons have developed rapidly. Modern police law enforcement water cannons are large-scale non-lethal weapons and equipment used to deal with mass riots, and have played an important role in actual combat.

[0003] The existing law enforcement water cannon has the following obvious defects when in use: after adjusting the angle of the cannon nozzle, the water pump flow rate needs to be adjusted to adjust the range of the water cannon, which takes a lot of time during law enforcement and cannot achieve a quick response; and after reaching the maximum power and maximum flow rate of the water pump, the water flow pressure of the water cannon cannot be further adjusted. The range can only be adjusted by replacing the water pump, and the pressure cannot be adjusted by adjusting the inner diameter of the water cannon tube to increase the range. Summary of the invention

[0004] The purpose of the present invention is to provide a law enforcement water cannon to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A law enforcement water cannon, comprising:

[0007] A main gun body pipe, the main gun body pipe is connected to a flange elbow, and the flange elbow is connected to a gun nozzle;

[0008] An angle adjustment component, the angle adjustment component includes a horizontal rotation power mechanism and a pitch rotation power mechanism, the horizontal rotation power mechanism is used to drive the flange elbow to perform horizontal rotation, and the pitch rotation power mechanism is arranged on the flange elbow and is used to drive the gun nozzle to perform pitch rotation;

[0009] An inner diameter adjustment component, which is disposed inside the gun nozzle and is used to adjust the inner diameter of the gun nozzle; and

[0010] The length adjustment component includes a detection mechanism, a driving mechanism and a telescopic tube. The detection mechanism and the driving mechanism are both provided with several groups. The detection mechanism is used to detect the adjustment position of the inner diameter adjustment component. According to the detection result of the detection mechanism, the driving mechanism will drive the telescopic tube to extend and retract.

[0011] Preferably, the horizontal rotation power mechanism includes a mounting ring, a rotary motor and a rotary gear. The mounting ring is arranged on the flange elbow, the rotary motor is arranged on the mounting ring, and the rotary gear is arranged on the machine base. The output gear of the rotary motor and the rotary gear are meshed with each other. When the rotary motor is started, it drives the flange elbow to rotate horizontally.

[0012] The pitch and rotation power mechanism includes a second mounting ring, a second rotation motor and a second rotation gear. The second mounting ring is arranged on the flange elbow, the second rotation motor is arranged on the second mounting ring, the second rotation gear is arranged on the gun nozzle, and the output gear of the second rotation motor and the second rotation gear are meshed with each other. When the second rotation motor is started, it will drive the gun nozzle to perform pitch and rotation.

[0013] Preferably, the inner diameter adjustment assembly includes a mounting plate, an adjusting push rod, an adjusting rod and an adjusting block. The mounting plate is arranged inside the gun nozzle. The adjusting push rod, the adjusting rod and the adjusting block are each arranged in a corresponding number. The adjusting push rod is arranged on the mounting plate and is used to push the adjusting rod to move. The adjusting rod is inserted into the adjusting block. The adjusting block is arranged around the mounting plate. When the adjusting push rod pushes the adjusting rod to move, it will drive the adjusting block to move and thereby adjust the size of the annular area formed between the several adjusting blocks.

[0014] Preferably, the mounting plate includes mounting plate 1 and mounting plate 2, the mounting plate 1 and mounting plate 2 are both provided with through holes for water to flow through, the mounting plate 1 and mounting plate 2 are symmetrically arranged on both sides of the adjusting rod, the mounting plate 1 is fixedly connected to the side wall of the gun nozzle, the mounting plate 1 is provided with a plurality of guide grooves corresponding to the adjusting rod, the adjusting push rod is arranged in the guide groove and is used to push the adjusting rod to move along the guide groove, the mounting plate 2 is rotatably connected to the side wall of the gun nozzle, the mounting plate 2 is provided with a sliding groove, and the end of the adjusting rod away from the guide groove is connected to the sliding groove.

[0015] Preferably, a rubber membrane is provided between the through holes of the first mounting plate and the second mounting plate.

[0016] Preferably, the detection mechanism comprises a distance sensor, and the distance sensor is arranged in the sliding groove. As the distance sensor detects the position of the adjusting rod in the sliding groove, it is used to control the driving mechanism to adjust the length of the telescopic rod.

[0017] Preferably, the driving mechanism comprises a telescopic push rod, and the telescopic push rod is arranged inside the telescopic tube. When the telescopic push rod is extended or retracted, the telescopic tube is driven to be extended or retracted.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention quickly adjusts the angle of the gun nozzle through the horizontal rotation power mechanism and the pitch rotation power mechanism, and when adjusting the angle of the gun nozzle, the inner diameter of the gun nozzle can be adjusted through the inner diameter adjustment component, the inner diameter inside the gun nozzle becomes smaller, and the water pressure increases, thereby increasing the water flow pressure at the gun nozzle outlet and increasing the range, because the use of the rubber membrane is to reduce the inner diameter size of the gun barrel, only through the ingenious structural design of the adjustment block and the adjustment rod of the present invention can the rubber membrane have a good supporting effect, so that the purpose of adjusting to reduce the inner diameter is achieved and used smoothly, and when the inner diameter is adjusted, the detection mechanism will detect the adjustment position of the inner diameter and then control the driving mechanism to drive the telescopic tube to extend and retract, thereby reducing the pipeline friction loss suffered by the water flow, thereby working together with the inner diameter adjustment component to achieve the technical effect of quickly adjusting the range. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an isometric structural schematic diagram of the present invention;

[0020] Figure 2 It is a schematic diagram of the structure of the present invention from a side view (partial section view of the gun nozzle and the interior of the telescopic tube);

[0021] Figure 3 It is a schematic cross-sectional structure diagram of the connection state of the gun nozzle and the telescopic tube of the present invention;

[0022] Figure 4 The inner diameter adjustment component of the present invention is schematically shown in the axial structure Figure 1 ;

[0023] Figure 5 The inner diameter adjustment component of the present invention is schematically shown in the axial structure Figure 2 (Show the cross section of the installation plate 2);

[0024] Figure 6 The inner diameter adjustment component of the present invention is schematically shown in the axial structure Figure 3 (Show the cross section of the mounting plate 1);

[0025] Figure 7 This is a schematic diagram of the connection structure between the adjusting rod and the adjusting block of the present invention;

[0026] Figure 8 This is a schematic diagram of the axial structure of the adjustment block of the present invention;

[0027] Fig. 9 It is a schematic diagram of the cross-sectional structure of the mounting plate of the present invention in a top-view state;

[0028] Fig.10 It is a schematic diagram of the position structure of the mounting plate 1, the mounting plate 2 and the rubber membrane of the present invention.

[0029] In the figure: 1 gun body main pipe, 2 flange elbow, 3 gun nozzle, 4 mounting ring 1, 5 rotary motor 1, 6 rotary gear 1, 7 mounting ring 2, 8 rotary motor 2, 9 rotary gear 2, 10 adjustment push rod, 11 adjustment rod, 12 adjustment block, 13 mounting plate 1, 14 mounting plate 2, 15 rubber membrane, 16 distance sensor, 17 telescopic push rod, 18 telescopic tube, 1201 slider, 1202 slide groove, 1301 guide groove, 1401 sliding groove, 1701 waterproof membrane. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-10 , the present invention provides a technical solution:

[0032] A law enforcement water cannon, as shown in the instruction manual Figure 1 As shown, including:

[0033] A gun body main pipe 1, which is used to connect the present invention and the frame of the law enforcement water cannon, the gun body main pipe 1 is connected to a flange elbow 2, and the flange elbow 2 is connected to a gun nozzle 3;

[0034] An angle adjustment component, the angle adjustment component includes a horizontal rotation power mechanism and a pitch rotation power mechanism, the horizontal rotation power mechanism is used to drive the flange elbow 2 to perform horizontal rotation, and the pitch rotation power mechanism is arranged on the flange elbow 2 and is used to drive the gun nozzle 3 to perform pitch rotation;

[0035] An inner diameter adjustment component, which is disposed inside the gun nozzle 3 and is used to adjust the inner diameter of the gun nozzle 3; and

[0036] The length adjustment component includes a detection mechanism, a driving mechanism and a telescopic tube 18. The detection mechanism and the driving mechanism are each provided with several groups. The detection mechanism is used to detect the adjustment position of the inner diameter adjustment component. According to the detection result of the detection mechanism, the driving mechanism will drive the telescopic tube 18 to extend and retract. The telescopic tube 18 is used to adjust the length of the gun nozzle 3.

[0037] The horizontal rotary power mechanism includes a mounting ring 4, a rotary motor 5 and a rotary gear 6. The mounting ring 4 is used to mount the rotary motor 5. The mounting ring 4 is fixedly connected to the flange elbow 2. The rotary motor 5 is fixedly connected to the mounting ring 4. The rotary gear 6 is fixedly connected to the machine base. The output gear of the rotary motor and the rotary gear 6 are meshed with each other. In this embodiment, a planetary gear reducer is also provided at the output end of the rotary motor 5. The planetary gear reducer can effectively disperse radial and axial forces, reduce the burden on the supporting structure, and improve the reliability and durability of the horizontal rotary power mechanism. The flange elbow 2 is rotatably connected to the machine base, so when the rotary motor 5 is started, it will drive the flange elbow 2 to rotate horizontally.

[0038] The pitch and rotation power mechanism includes a mounting ring 27, a rotary motor 28 and a rotary gear 29. The mounting ring 27 is fixedly connected to the flange elbow 2, the rotary motor 28 is fixedly connected to the mounting ring 27, the rotary gear 29 is arranged on the gun nozzle 3, and the output gear of the rotary motor 28 and the rotary gear 29 are meshed with each other. In this embodiment, a planetary gear reducer is also arranged at the output end of the rotary motor 28. The gun nozzle 3 is rotatably connected to the flange elbow 2. When the rotary motor 28 is started, it will drive the gun nozzle 3 to pitch and rotate. In this embodiment, the rotary motor 1 5 and the rotary motor 2 8 are both AKM2G2x servo motors. In actual use, the models of the rotary motor 1 5 and the rotary motor 2 8 can be adaptively selected according to actual conditions.

[0039] The inner diameter adjustment component includes a mounting plate, an adjusting push rod 10, an adjusting rod 11 and an adjusting block 12. The mounting plate is arranged inside the gun nozzle 3. Several adjusting push rods 10, adjusting rods 11 and adjusting blocks 12 are arranged correspondingly. The adjusting push rod 10 is arranged on the mounting plate and is used to push the adjusting rod 11 to move. The adjusting rod 11 is inserted in the adjusting block 12. The adjusting rod 11 and the adjusting block 12 are rotatably connected. The adjusting block 12 is arranged around the mounting plate. The adjacent adjusting blocks 12 are slidably connected by the cooperation of the slider 1201 and the slide groove 1202 to ensure the linkage between each adjusting block 12. When the adjusting push rod 10 pushes the adjusting rod 11 to move, it will drive the adjusting block 12 to move and then adjust the size of the annular area formed between the several adjusting blocks 12. In this embodiment, the adjusting push rod 10 and the telescopic push rod 17 are both pneumatic push rods purchased by Taizhou Kechang Machinery Parts Co., Ltd., and the adjusting push rod 10 and the telescopic push rod 17 have good waterproof performance.

[0040] The mounting plate includes a mounting plate 13 and a mounting plate 2 14. Both the mounting plate 13 and the mounting plate 2 14 are provided with through holes for water to flow through. The mounting plate 13 and the mounting plate 2 14 are symmetrically arranged on both sides of the adjusting rod 11. The mounting plate 13 is fixedly connected to the side wall of the gun nozzle 3. The mounting plate 13 is provided with a plurality of guide grooves 1301 corresponding to the adjusting rod 11. The guide grooves 1301 are arranged around the mounting plate 13. The adjusting push rod 10 is arranged in the guide grooves 1301 and is used to push the adjusting rod 11 to move along the guide grooves 1301. The mounting plate 2 14 is rotatably connected to the side wall of the gun nozzle 3. The mounting plate 2 14 is provided with a sliding groove 1401. The end of the adjusting rod 11 away from the guide groove 1301 is connected to the sliding groove 1401.

[0041] A rubber membrane 15 is provided between the through holes of the first mounting plate 13 and the second mounting plate 14. The rubber membrane 15 is made of fluororubber. The fluororubber has good wear resistance, elasticity and moderate pressure resistance, and is suitable for environments that require frequent deformation and certain pressure.

[0042] The trigger mechanism includes a distance sensor 16, which is a BPS3M series reflective infrared sensor produced by AUTONICS. This model of distance sensor 16 has good waterproof performance and can be used in water. The distance sensor 16 is fixedly connected to one side of the sliding groove 1401. As the distance sensor 16 detects the position of the adjusting rod 11 in the sliding groove 1401, it is used to activate the corresponding driving mechanism to adjust the length of the telescopic rod.

[0043] The driving mechanism includes a telescopic push rod 17, and a telescopic waterproof membrane 1701 made of fluororubber is arranged on the outside of the telescopic push rod 17. The telescopic waterproof membrane 1701 is used to reduce the pipeline resistance encountered by water flow in the telescopic tube 18. The telescopic push rod 17 is arranged inside the telescopic tube 18. When the telescopic push rod 17 is extended or retracted, it will drive the telescopic tube 18 to extend or retract.

[0044] Working principle: When in use, the spray position is determined according to the photoelectric tracker (photoelectric tracker is a prior art and a conventional technical means in the field of water cannon technology, so it will not be described in detail here) provided in conjunction with the law enforcement water cannon, and then the horizontal angle and pitch angle of the cannon nozzle 3 are adjusted by controlling the rotary motor 1 5 and the rotary motor 2 8. After the position adjustment is completed, the adjustment push rod 10 is driven to extend and retract according to the required water flow landing point;

[0045] When the water cannon needs to be turned off quickly, the adjusting push rod 10 is driven to be shortened. When the adjusting push rod 10 is shortened, the adjusting rod 11 is driven to move along the guide groove 1301, thereby driving the adjusting block 12 to move, thereby enlarging the annular area formed between the adjusting blocks 12. At the same time, the water cannon can be quickly turned off by turning off the water pump driving the water cannon.

[0046] When the water flow landing point needs to be adjusted closer, the adjusting push rod 10 is driven to shorten. When the adjusting push rod 10 shortens, the adjusting rod 11 is driven to move along the guide groove 1301, thereby driving the adjusting block 12 to move, thereby enlarging the annular area formed between the adjusting blocks 12. When the adjusting rod 11 moves, the distance sensor 16 detects the change in the position of the adjusting rod 11 and extends the length of the telescopic tube 18. At this time, the increase in the length of the pipeline increases the resistance to the water flow during the flow of the water flow, further reducing the speed of the water flow spraying, thereby quickly adjusting the water flow landing point closer;

[0047] When it is necessary to adjust the water flow landing point further away (especially when the water pump driving the water cannon has reached the maximum output power), the driving adjustment push rod 10 is extended. When the adjustment push rod 10 is extended, it will drive the adjustment rod 11 to move along the guide groove 1301, thereby driving the adjustment block 12 to move, thereby making the annular area formed between the adjustment blocks 12 smaller. Since the water pump driving the water cannon has reached the maximum output, when the cross-sectional area of ​​the annular area formed between the adjustment blocks 12 becomes smaller, the water flow velocity will increase, and at this time the telescopic push rod 17 will drive the telescopic tube 18 to contract, thereby reducing the friction loss of the pipeline, and further increasing the water flow spraying speed to achieve the technical effect of quickly adjusting the water flow landing point further away.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A law enforcement water cannon, characterized in that: include: A gun body main pipe, the gun body main pipe is connected with a flange elbow, and the flange elbow is connected with a gun nozzle; An angle adjustment component, the angle adjustment component includes a horizontal rotation power mechanism and a pitch rotation power mechanism, the horizontal rotation power mechanism is used to drive the flange elbow to perform horizontal rotation, and the pitch rotation power mechanism is arranged on the flange elbow and is used to drive the gun nozzle to perform pitch rotation; An inner diameter adjustment component, which is disposed inside the gun nozzle and is used to adjust the inner diameter of the gun nozzle; and The length adjustment component includes a detection mechanism, a driving mechanism and a telescopic tube. The detection mechanism and the driving mechanism are both provided with several groups. The detection mechanism is used to detect the adjustment position of the inner diameter adjustment component. According to the detection result of the detection mechanism, the driving mechanism will drive the telescopic tube to extend and retract.

2. A law enforcement water cannon according to claim 1, characterized in that: The horizontal rotary power mechanism includes a mounting ring, a rotary motor and a rotary gear. The mounting ring is arranged on the flange elbow, the rotary motor is arranged on the mounting ring, and the rotary gear is arranged on the machine base. The output gear of the rotary motor and the rotary gear are meshed with each other. When the rotary motor is started, it drives the flange elbow to rotate horizontally.

3. A law enforcement water cannon according to claim 1, characterized in that: The pitch and rotation power mechanism includes a second mounting ring, a second rotation motor and a second rotation gear. The second mounting ring is arranged on the flange elbow, the second rotation motor is arranged on the second mounting ring, the second rotation gear is arranged on the gun nozzle, and the output gear of the second rotation motor and the second rotation gear are meshed with each other. When the second rotation motor is started, it will drive the gun nozzle to perform pitch and rotation.

4. A law enforcement water cannon according to claim 1, characterized in that: The inner diameter adjustment assembly includes a mounting plate, an adjustment push rod, an adjustment rod and an adjustment block. The mounting plate is arranged inside the gun nozzle. The adjustment push rod, the adjustment rod and the adjustment block are each arranged in a corresponding manner. The adjustment push rod is arranged on the mounting plate and is used to push the adjustment rod to move. The adjustment rod is inserted into the adjustment block. The adjustment block is arranged around the mounting plate. When the adjustment push rod pushes the adjustment rod to move, it will drive the adjustment block to move and thereby adjust the size of the annular area formed between the several adjustment blocks.

5. A law enforcement water cannon according to claim 4, characterized in that: The mounting plate includes mounting plate 1 and mounting plate 2, both of which are provided with through holes for water to flow through, and the mounting plate 1 and mounting plate 2 are symmetrically arranged on both sides of the adjusting rod, the mounting plate 1 is fixedly connected to the side wall of the gun nozzle, the mounting plate 1 is provided with a plurality of guide grooves corresponding to the adjusting rod, the adjusting push rod is arranged in the guide groove and is used to push the adjusting rod to move along the guide groove, the mounting plate 2 is rotatably connected to the side wall of the gun nozzle, the mounting plate 2 is provided with a sliding groove, and the end of the adjusting rod away from the guide groove is connected to the sliding groove.

6. A law enforcement water cannon according to claim 5, characterized in that: A rubber membrane is arranged between the through holes of the first mounting plate and the second mounting plate.

7. A law enforcement water cannon according to claim 5, characterized in that: The detection mechanism comprises a distance sensor, and the distance sensor is arranged in the sliding slot. The distance sensor detects the position of the adjusting rod in the sliding slot and is used to control the driving mechanism to adjust the length of the telescopic rod.

8. A law enforcement water cannon according to claim 7, characterized in that: The driving mechanism comprises a telescopic push rod, which is arranged inside the telescopic tube. When the telescopic push rod is extended or retracted, the telescopic tube is driven to be extended or retracted.

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