Spraying nozzle for high-pressure water jet

By designing a detachable anti-slip grip structure on the high-pressure water jet nozzle, the problem of dropping the nozzle or losing control of the spray direction due to hand slip is solved, and the operation safety and maintenance convenience are improved.

CN120079538APending Publication Date: 2025-06-03NANTONG UNIV
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Patent Information

Application Number
CN202510507985.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-22
Publication Date
2025-06-03

AI Technical Summary

Technical Problem

During use, high-pressure water jet nozzles vibrate due to the reaction force of high-pressure water flow, and the operator's hands are slippery, which may cause the nozzle to fall or the spray direction to lose control, causing safety hazards.

Method used

A detachable anti-slip grip structure is designed. By fixing the anti-slip grip on the nozzle, the friction between the hand and the nozzle is increased, ensuring that the operator can firmly grasp the nozzle.

Benefits of technology

It effectively reduces the risk of the spray head falling or the spray direction being out of control due to hand slipping, ensures the safety of the operator and the surrounding environment, and at the same time, the anti-slip grip can be easily removed during maintenance to ensure the normal working condition of the spray head.

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Abstract

The invention discloses a spraying nozzle for high-pressure water jet. According to the invention, the outer side surface of a main connecting pipeline is fixedly connected with an anti-skid grip base, one side of the anti-skid grip base is provided with a plurality of anti-skid grip connecting plates, one side of each anti-skid grip connecting plate is provided with a bolt, one end of each anti-skid grip connecting plate is fixedly connected with a grip, and the other end of each anti-skid grip connecting plate is fixedly connected with a bolt. And the outer side surface of the grip is fixedly connected with an anti-skid pad. A detachable anti-skidding grip structure is additionally arranged on the high-pressure water jet spraying nozzle, a bolt can penetrate through an anti-skidding grip connecting plate to connect the anti-skidding grip connecting plate to an anti-skidding grip base in a threaded mode, and when the high-pressure water jet spraying nozzle is operated, due to the fact that the nozzle possibly vibrates to a certain degree due to the counter-acting force of high-pressure water flow, the anti-skidding grip structure can not be damaged. The hands of the operator may become wet and slippery due to sweating, wetting and the like; and therefore, the phenomenon that the hand slips easily occurs, and the situation that the spray head accidentally falls off possibly occurs.
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Description

Technical Field

[0001] The present invention belongs to the technical field of high-pressure water jet spray nozzles, and specifically relates to a high-pressure water jet spray nozzle. Background Art

[0002] A high-pressure water jet nozzle is a device that jets water at high pressure and is widely used in fields such as cleaning, cutting, and surface treatment. Its structure is usually made of high-pressure resistant materials and has a water inlet and a nozzle, capable of jetting water flow in the form of fine water columns. The high-pressure water flow generates a strong impact force, capable of efficiently removing dirt or cutting materials, and is environmentally friendly without the need for chemical cleaning agents. Its design and technology are continuously improved to meet the requirements of efficient and precise processing in the industry.

[0003] In the prior art, during the use of a high-pressure water jet nozzle, the nozzle will vibrate due to the reaction force of the high-pressure water flow, and the operator's hand may become slippery due to sweating, getting wet, or long-term operation. Without an anti-slip grip, the friction between the hand and the nozzle is insufficient, and it is very easy to have a hand-slip phenomenon, which may cause the nozzle to accidentally fall, not only damaging the nozzle itself but also possibly injuring the operator's foot or causing other accidental injuries; at the same time, the hand-slip may also cause the jet direction to suddenly change, making it impossible to accurately control the jet path of the water jet, and possibly accidentally injuring surrounding personnel or equipment, etc. Summary of the Invention

[0004] The purpose of the present invention is to provide a high-pressure water jet spray nozzle to solve the above-mentioned safety problems.

[0005] The technical solution adopted by the present invention is as follows: A high-pressure water jet spray nozzle includes a main connecting pipe, an anti-slip grip base is fixedly connected to the outer surface of the main connecting pipe, a plurality of anti-slip grip connecting plates are arranged on one side of the anti-slip grip base, bolts are arranged on one side of the anti-slip grip connecting plates, a grip is fixedly connected to one end of the anti-slip grip connecting plates, and an anti-slip pad is fixedly connected to the outer surface of the grip.

[0006] By adopting the above technical solution, a detachable anti-slip grip structure is added to a high-pressure water jet nozzle. When operating the high-pressure water jet nozzle, the nozzle may vibrate due to the reaction force of the high-pressure water flow, and the operator's hand may become slippery due to sweating, getting wet, etc. The anti-slip grip can effectively increase the friction between the hand and the nozzle, enabling the operator to hold the nozzle more firmly, greatly reducing the risk of the nozzle falling or the spraying direction getting out of control due to slippery hands, and ensuring the safety of the operator himself and the surrounding environment. When operations such as cleaning, maintenance, or replacing accessories of the nozzle are required, the anti-slip grip can be easily detached from the nozzle, preventing it from interfering with the treatment of various parts of the nozzle during maintenance, enabling the maintenance work to proceed more smoothly, and ensuring that the nozzle is always in good working condition.

[0007] In a preferred embodiment, one end of the main connecting pipe is fixedly connected with a nozzle threaded connection port.

[0008] By adopting the above technical solution, the main function of the nozzle threaded connection port is to achieve a reliable connection between the nozzle and other components. This connection method has good sealing performance and stability, and can effectively prevent high-pressure water from leaking from the connection point in the high-pressure water jet operation environment, ensuring the sealing of the entire system.

[0009] In a preferred embodiment, a nozzle connection block is provided at one end of the nozzle threaded connection port relative to the main connecting pipe, and a nozzle base is provided at one end of the nozzle connection block relative to the nozzle threaded connection port.

[0010] By adopting the above technical solution, the nozzle connection block connects the nozzle threaded connection port and the nozzle base, playing a coordinating connection role, so that the position of the nozzle in the entire system is fixed and accurate. The nozzle base provides a stable support foundation for the entire nozzle system. It connects the nozzle connection block and the nozzle together, ensuring that the nozzle will not be displaced or toppled due to factors such as the reaction force of the water flow and vibration during the high-pressure water jet spraying process.

[0011] In a preferred embodiment, a nozzle is fixedly connected to one end of the nozzle base relative to the nozzle connection block.

[0012] By adopting the above technical solution, the nozzle is the core component of the entire high-pressure water jet spraying system, and its main function is to convert the high-pressure water transported from the water pump into a water jet with a specific shape, strength, and spraying direction.

[0013] In a preferred embodiment, a left flange is provided at one end of the main connection pipe relative to the threaded connection port of the nozzle. One end of the left flange is fixedly connected to a left connection pipe. One end of the left connection pipe is fixedly connected to an adjusting plug body. A flow regulating plug is provided on the upper surface of the adjusting plug body. One end of the adjusting plug body relative to the left connection pipe is fixedly connected to a right connection pipe. One end of the right connection pipe is fixedly connected to a right flange.

[0014] By adopting the above technical solution, a detachable flow regulating plug is added to a high-pressure water jet nozzle. Different high-pressure water jet application scenarios have different requirements for water flow. For example, when cutting hard materials, a relatively large water flow may be required to provide sufficient impact force; while when cleaning or surface treating some relatively delicate parts, only a relatively small water flow may be needed to avoid damage caused by excessive impact. The detachable flow regulating plug can accurately adjust the size of the water flow passing through the nozzle by replacing adjusting plugs with different apertures, so as to adapt to various different operation requirements. When the nozzle needs to be regularly cleaned or maintained, removing the flow regulating plug can make it more convenient for the operator to thoroughly clean the internal flow channels and other structures of the nozzle. Without the obstruction of the regulating plug, appropriate tools can be used to penetrate deep into the nozzle to remove accumulated scale, impurities, etc., ensuring that the nozzle can work normally and efficiently subsequently.

[0015] In a preferred embodiment, a secondary connection pipe is provided at one end of the right flange.

[0016] By adopting the above technical solution, the primary function of the secondary connection pipe is to serve as one of the transmission channels of high-pressure water in the system. It is responsible for delivering the high-pressure water output from the water pump to the nozzle or other related components, ensuring that the high-pressure water can flow smoothly in the entire system and realizing continuous water supply from the water pump to the nozzle.

[0017] In a preferred embodiment, a water pump lower connection port is provided at one end of the secondary connection pipe relative to the right flange. The upper end of the water pump lower connection port is fixedly connected to a water pump.

[0018] By adopting the above technical solution, the water pump lower connection port connects the secondary connection pipe and the water pump, which ensures the integrity and unity of the overall structure and is one of the important components in the overall structure. The water pump is an important part of the entire high-pressure water jet system, and its core function is to pressurize the water source extracted from the outside.

[0019] In a preferred embodiment, a water pump motor is provided at one end of the water pump relative to the water pump lower connection port.

[0020] By adopting the above technical solution, the pump motor is the power source for the operation of the pump. It converts electrical energy into mechanical energy to provide the necessary power for the operation of the pump, enabling the pump to normally perform operations such as pumping water and pressurizing.

[0021] In a preferred embodiment, a water suction pipe is provided on one side of the pump, and a water suction port is provided at one end of the water suction pipe relative to the pump.

[0022] By adopting the above technical solution, the main function of the water suction pipe is to serve as an extraction channel from the external water source to the pump. It can extract water from the water suction port and then enter the interior of the pump. The water suction port is the access point for the water suction pipe to draw water from the external water source.

[0023] In a preferred embodiment, a plurality of connecting rods are fixedly connected to the outer surface of the pump. One end of the connecting rod relative to the pump is fixedly connected to a connecting ring plate. A plurality of screw rods are provided on the upper surface of the connecting ring plate. The upper end of the screw rod is fixedly connected to a nut, and the lower surface of the screw rod is fixedly connected to a fixing plate.

[0024] By adopting the above technical solution, a pump fixing structure is added for a high-pressure water jet spraying nozzle. In high-pressure water jet operations, stable water supply is crucial for maintaining the continuous and stable ejection of strong water jets from the nozzle. The pump fixing structure can firmly fix the pump in a suitable position, preventing it from shifting due to vibrations, swaying, etc. during operation. This can ensure that the water inlet of the pump is always in a stable water absorption state, continuously providing sufficient and stable water source for the nozzle, and preventing pressure fluctuations, intermittency, etc. in the water jet ejected from the nozzle due to unstable water supply, thus ensuring the smooth progress of the operation.

[0025] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are as follows:

[0026] 1. In the present invention, a detachable anti-slip grip structure is added for a high-pressure water jet spraying nozzle. When operating the high-pressure water jet spraying nozzle, since the nozzle may generate certain vibrations due to the reaction force of the high-pressure water flow, and the operator's hand may become slippery due to sweating, getting wet, etc. The anti-slip grip can effectively increase the friction between the hand and the nozzle, enabling the operator to hold the nozzle more firmly, greatly reducing the risk of the nozzle falling or the spraying direction getting out of control due to hand slippage, and ensuring the safety of the operator himself and the surrounding environment. When operations such as cleaning, maintenance, or replacement of accessories are required for the nozzle, the anti-slip grip can be easily detached from the nozzle, avoiding interference with the treatment of various parts of the nozzle during maintenance, enabling the maintenance work to proceed more smoothly, and ensuring that the nozzle is always in a good working state.

[0027] 2. In the present invention, a detachable flow rate adjusting plug is added to a high-pressure water jet spraying nozzle. Different high-pressure water jet application scenarios have different requirements for water flow rate. For example, when cutting hard materials, a relatively large water flow rate may be required to provide sufficient impact force; while when cleaning or surface treating some relatively delicate components, only a relatively small water flow rate may be needed to avoid damage caused by excessive impact. The detachable flow rate adjusting plug can accurately adjust the size of the water flow rate passing through the nozzle by replacing adjusting plugs with different orifice diameters, so as to adapt to various different operation requirements. When the nozzle needs to be regularly cleaned or maintained, removing the flow rate adjusting plug can enable the operator to more conveniently clean the internal flow channels and other structures of the nozzle thoroughly. Without the obstruction of the adjusting plug, appropriate tools can be used to reach deep into the nozzle to remove scale, impurities, etc. that may have accumulated, ensuring that the nozzle can work normally and efficiently subsequently.

[0028] 3. In the present invention, a water pump fixing structure is added to a high-pressure water jet spraying nozzle. In high-pressure water jet operations, stable water supply is crucial for maintaining the continuous and stable ejection of strong water jets from the nozzle. The water pump fixing structure can firmly fix the water pump in a suitable position, preventing it from shifting due to reasons such as vibration and shaking during operation. This can ensure that the water inlet of the water pump is always in a stable water absorption state, continuously providing sufficient and stable water source for the nozzle, and preventing the water jet ejected from the nozzle from having pressure fluctuations, intermittent situations, etc. caused by unstable water supply, thus guaranteeing the smooth progress of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic diagram of the overall structure in the present invention;

[0030] Figure 2 is a schematic diagram of the detachable anti-slip grip structure in the present invention;

[0031] Figure 3 is an exploded view of the nozzle structure in the present invention;

[0032] Figure 4 is a schematic diagram of the detachable flow rate adjusting plug structure in the present invention;

[0033] Figure 5 is a schematic diagram of the water pump structure in the present invention;

[0034] Figure 6 is a schematic diagram of the water pump fixing structure in the present invention.

[0035] Markings in the figure:: 1 - Main connection pipe, 2 - Anti-slip grip base, 3 - Anti-slip grip connecting plate, 4 - Bolt, 5 - Grip, 6 - Anti-slip pad, 7 - Sprayer thread connection port, 8 - Sprayer connection block, 9 - Sprayer base, 10 - Sprayer, 11 - Left flange, 12 - Left connection pipe, 13 - Regulating plug body, 14 - Flow regulating plug, 15 - Right connection pipe, 16 - Right flange, 17 - Sub-connection pipe, 18 - Submersible pump lower connection port, 19 - Submersible pump, 20 - Submersible pump motor, 21 - Suction pipe, 22 - Suction port, 23 - Connecting rod, 24 - Connecting ring plate, 25 - Screw rod, 26 - Nut, 27 - Fixed plate. Detailed implementation mode

[0036] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0037] Refer to Figure 1-6 ,

[0038] Refer to Figure 1-2 , on the outer surface of the main connection pipe 1, an anti-slip grip base 2 is fixedly connected. On one side of the anti-slip grip base 2, a plurality of anti-slip grip connecting plates 3 are arranged. On one side of the anti-slip grip connecting plate 3, a bolt 4 is arranged. One end of the anti-slip grip connecting plate 3 is fixedly connected with a grip 5, and an anti-slip pad 6 is fixedly connected to the outer surface of the grip 5. A detachable anti-slip grip structure is added to a high-pressure water jet sprayer. The bolt 4 can penetrate the anti-slip grip connecting plate 3 and be threadedly connected to the anti-slip grip base 2. When operating the high-pressure water jet sprayer, due to the reaction force of the high-pressure water flow, the sprayer may vibrate to a certain extent, and the operator's hand may become slippery due to sweating, getting wet, etc. The anti-slip grip can effectively increase the friction between the hand and the sprayer, enabling the operator to hold the sprayer more firmly, greatly reducing the risk of the sprayer falling or the spraying direction getting out of control due to hand slipperiness, and ensuring the safety of the operator himself and the surrounding environment. When it is necessary to clean, maintain or replace accessories of the sprayer, etc., the anti-slip grip can be easily detached from the sprayer, avoiding it from interfering with the treatment of various parts of the sprayer during the maintenance process, enabling the maintenance work to proceed more smoothly, and ensuring that the sprayer is always in good working condition.

[0039] Refer to Figure 1 , Figure 3, one end of the main connection pipe 1 is fixedly connected with a nozzle threaded connection port 7. The main function of the nozzle threaded connection port 7 is to achieve a reliable connection between the nozzle and other components. This connection method has good sealing performance and stability, and can effectively prevent high-pressure water from leaking at the connection under the high-pressure water jet working environment, ensuring the sealing of the entire system.

[0040] Refer to Figure 3 , a nozzle connection block 8 is provided at one end of the nozzle threaded connection port 7 relative to the main connection pipe 1, and a nozzle base 9 is provided at one end of the nozzle connection block 8 relative to the nozzle threaded connection port 7. The nozzle connection block 8 connects the nozzle threaded connection port 7 and the nozzle base 9, and it plays a role in coordinating the connection, so that the position of the nozzle in the entire system is fixed and accurate. The nozzle base 9 provides a stable support foundation for the entire nozzle system. It connects the nozzle connection block 8 and the nozzle 10 together, ensuring that the nozzle will not be displaced or toppled due to factors such as the reaction force of the water flow and vibration during the high-pressure water jet spraying process.

[0041] Refer to Figure 3 , a nozzle 10 is fixedly connected to one end of the nozzle base 9 relative to the nozzle connection block 8. The nozzle 10 is the core component of the entire high-pressure water jet spraying system, and its main function is to convert the high-pressure water transported from the water pump into a water jet with a specific shape, strength, and spraying direction.

[0042] Refer to Figure 1 , Figure 4, one end of the main connection pipe 1 is provided with a left flange 11 relative to the nozzle threaded connection port 7. One end of the left flange 11 is fixedly connected with a left connection pipe 12. One end of the left connection pipe 12 is fixedly connected with an adjusting plug body 13. A flow regulating plug 14 is arranged on the upper surface of the adjusting plug body 13. One end of the adjusting plug body 13 relative to the left connection pipe 12 is fixedly connected with a right connection pipe 15. One end of the right connection pipe 15 is fixedly connected with a right flange 16. A detachable flow regulating plug is added to a high-pressure water jet spraying nozzle, and the operator can adjust the flow rate by turning the flow regulating plug 14. Different high-pressure water jet application scenarios have different requirements for water flow rate. For example, when cutting hard materials, a larger water flow rate may be required to provide sufficient impact force; while when cleaning or surface treating some relatively delicate parts, a smaller water flow rate may be sufficient to avoid damage caused by excessive impact. The detachable flow regulating plug can accurately adjust the size of the water flow rate passing through the nozzle by replacing adjusting plugs with different apertures, so as to adapt to various different operation requirements. When the nozzle needs to be cleaned or maintained regularly, removing the flow regulating plug can make it more convenient for the operator to thoroughly clean the internal flow channels and other structures of the nozzle. Without the obstruction of the regulating plug, appropriate tools can be used to reach deep into the nozzle to remove accumulated scale, impurities, etc., ensuring that the nozzle can work normally and efficiently subsequently.

[0043] Refer to Figure 1 , Figure 4 , one end of the right flange 16 is provided with a secondary connection pipe 17. The primary function of the secondary connection pipe 17 is to serve as one of the transmission channels of high-pressure water in the system. It is responsible for transporting the high-pressure water output from the water pump to the nozzle or other related components, ensuring that the high-pressure water can flow smoothly in the entire system and realizing continuous water supply from the water pump to the nozzle.

[0044] Refer to Figure 1 , Figure 4 , Figure 5 , one end of the secondary connection pipe 17 relative to the right flange 16 is provided with a water pump lower connection port 18. The upper end of the water pump lower connection port 18 is fixedly connected with a water pump 19. The water pump lower connection port 18 connects the secondary connection pipe 17 and the water pump 19, which ensures the integrity and unity of the overall structure and is one of the important component structures of the overall structure. The water pump 19 is an important part of the entire high-pressure water jet spraying system, and its core function is to pressurize the water source extracted from the outside.

[0045] Refer to Figure 5The water pump 19 is provided with a water pump motor 20 at one end relative to the water pump lower connection port 18. The water pump motor 20 is the power source for the water pump operation. It converts electrical energy into mechanical energy to provide the necessary power for the operation of the water pump, so that the water pump can normally perform operations such as pumping water and pressurizing.

[0046] Reference Figure 5 A water pump 19 is provided with a water pumping pipe 21 on one side, and a water pumping port 22 is provided at one end of the water pump 19. The main function of the water pumping pipe 21 is to serve as a pumping channel from an external water source to the water pump. It can draw water from the water pumping port 22 and then enter the inside of the water pump. The water pumping port 22 is the access point for the water pumping pipe to draw water from the external water source. It determines where the water pumping pipe draws water from, which can be various water sources such as ponds, rivers, water tanks, etc.

[0047] Reference Figure 1 , Figure 5-6 The outer surface of the water pump 19 is fixedly connected with a plurality of connecting rods 23, and one end of the connecting rod 23 relative to the water pump 19 is fixedly connected with a connecting ring plate 24, and the upper surface of the connecting ring plate 24 is provided with a plurality of screws 25, and the upper end of the screw 25 is fixedly connected with a nut 26, and the lower surface of the screw 25 is fixedly connected with a fixing plate 27. A water pump fixing structure is added to a high-pressure water jet spray nozzle, and the operator can press the fixing plate 27 against the ground by twisting the nut 26, thereby fixing the water pump structure. In high-pressure water jet operations, a stable water supply is essential to keep the nozzle continuously and stably spraying a strong water flow. The water pump fixing structure can firmly fix the water pump in a suitable position to prevent it from being displaced due to vibration, shaking, etc. during operation. This can ensure that the water inlet of the pump is always in a stable water absorption state, continuously providing sufficient and stable water source for the nozzle, and preventing the water jet ejected from the nozzle from experiencing pressure fluctuations and intermittent conditions due to unstable water supply, thereby ensuring the smooth progress of the operation.

[0048] Working principle:

[0049] In the present invention, a detachable anti-slip grip structure is added to a high-pressure water jet spray head. When operating the high-pressure water jet spray head, the spray head may vibrate due to the reaction force of the high-pressure water flow, and the hands of the operator may become slippery due to sweating, getting wet, etc. The anti-slip grip can effectively increase the friction between the hand and the spray head, enabling the operator to hold the spray head more firmly, greatly reducing the risk of the spray head falling or the spraying direction getting out of control due to slippery hands, and ensuring the safety of the operator himself and the surrounding environment. When operations such as cleaning, maintaining, or replacing accessories of the spray head are required, the anti-slip grip can be easily detached from the spray head, avoiding it from interfering with the treatment of various parts of the spray head during maintenance, enabling the maintenance work to proceed more smoothly, and ensuring that the spray head is always in good working condition.

[0050] In the present invention, a detachable flow regulator plug is added to a high-pressure water jet spray head. Different high-pressure water jet application scenarios have different requirements for water flow. For example, when cutting hard materials, a larger water flow may be required to provide sufficient impact force; while when cleaning or surface-treating some relatively delicate parts, only a smaller water flow may be needed to avoid damage caused by excessive impact. The detachable flow regulator plug can precisely adjust the size of the water flow passing through the spray head by replacing the regulator plugs with different apertures, so as to adapt to various different operation requirements. When the spray head needs to be cleaned or maintained regularly, removing the flow regulator plug can enable the operator to more conveniently clean the internal flow channels and other structures of the spray head thoroughly. Without the obstruction of the regulator plug, appropriate tools can be used to reach deep into the spray head to remove scale, impurities, etc. that may have accumulated, ensuring that the spray head can work normally and efficiently subsequently.

[0051] In the present invention, a fixed structure for the water pump is added to a high-pressure water jet spray head. In high-pressure water jet operations, stable water supply is crucial for maintaining the continuous and stable spraying of strong water flow from the spray head. The fixed structure for the water pump can firmly fix the water pump in a suitable position, preventing it from shifting due to vibration, shaking, etc. during operation. This can ensure that the water inlet of the water pump is always in a stable water absorption state, continuously providing sufficient and stable water source for the spray head, and preventing the water jet sprayed from the spray head from having pressure fluctuations, being intermittent, etc. due to unstable water supply, thus ensuring the smooth progress of the operation.

[0052] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A nozzle for high-pressure water jet spraying, comprising a main connecting pipe (1), characterized in that: The outer surface of the main connecting pipe (1) is fixedly connected to a non-slip handle base (2), one side of the non-slip handle base (2) is provided with a plurality of non-slip handle connecting plates (3), one side of the non-slip handle connecting plate (3) is provided with a bolt (4), one end of the non-slip handle connecting plate (3) is fixedly connected to a handle (5), and the outer surface of the handle (5) is fixedly connected to an anti-slip pad (6).

2. A nozzle for high-pressure water jet spraying as claimed in claim 1, characterized in that: One end of the main connecting pipe (1) is fixedly connected to a nozzle threaded connecting port (7).

3. A nozzle for high-pressure water jet spraying as claimed in claim 2, characterized in that: A nozzle connection block (8) is provided at one end of the nozzle threaded connection port (7) relative to the main connection pipe (1), and a nozzle base (9) is provided at one end of the nozzle connection block (8) relative to the nozzle threaded connection port (7).

4. A nozzle for high-pressure water jet spraying as claimed in claim 3, characterized in that: The nozzle base (9) is fixedly connected to one end of the nozzle connection block (8) with the nozzle (10).

5. A nozzle for high-pressure water jet spraying as claimed in claim 1, characterized in that: A left flange (11) is provided at one end of the main connecting pipe (1) relative to the nozzle threaded connecting port (7); one end of the left flange (11) is fixedly connected to a left connecting pipe (12); one end of the left connecting pipe (12) is fixedly connected to a regulating plug body (13); a flow regulating plug (14) is provided on the upper surface of the regulating plug body (13); one end of the regulating plug body (13) is fixedly connected to a right connecting pipe (15) relative to the left connecting pipe (12); one end of the right connecting pipe (15) is fixedly connected to a right flange (16).

6. A nozzle for high-pressure water jet spraying as claimed in claim 5, characterized in that: A secondary connecting pipe (17) is provided at one end of the right flange (16).

7. A nozzle for high-pressure water jet spraying as claimed in claim 6, characterized in that: A water pump lower connection port (18) is provided at one end of the secondary connection pipe (17) relative to the right flange (16), and a water pump (19) is fixedly connected to the upper end of the water pump lower connection port (18).

8. A nozzle for high-pressure water jet spraying as claimed in claim 7, characterized in that: The water pump (19) is provided with a water pump motor (20) at one end thereof opposite to the water pump lower connection port (18).

9. A nozzle for high-pressure water jet spraying as claimed in claim 7, characterized in that: A water pump (21) is provided on one side of the water pump (19), and a water pump port (22) is provided on one end of the water pump (21) opposite to the water pump (19).

10. A nozzle for high-pressure water jet spraying as claimed in claim 7, characterized in that: A plurality of connecting rods (23) are fixedly connected to the outer surface of the water pump (19); one end of the connecting rod (23) relative to the water pump (19) is fixedly connected to a connecting ring plate (24); a plurality of screw rods (25) are arranged on the upper surface of the connecting ring plate (24); a nut (26) is fixedly connected to the upper end of the screw rod (25); and a fixing plate (27) is fixedly connected to the lower surface of the screw rod (25).