A nozzle replacement structure for an electrostatic cleaning spray gun
By designing a limiting ring and limiting frame structure, combined with a filtration mechanism, the problems of low replacement efficiency and easy clogging of the nozzles of the live cleaning spray gun are solved, achieving stable connection and efficient cleaning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN SHENJIE CONSTR DEV CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-06-19
AI Technical Summary
The existing nozzle replacement structure of live-lined cleaning spray guns mostly uses threaded connections, which results in low installation and maintenance efficiency, easy wear, easy loosening or falling off of the nozzle, and easy clogging of the nozzle by impurities in the cleaning medium, thus affecting work efficiency.
It adopts a limit ring and limit frame structure, combined with a filter mechanism. The limit ring is fixed to the spray gun and nozzle, and the limit frame is used to snap together to achieve a stable connection. It is also equipped with a filter mechanism to intercept impurities and prevent clogging.
It improves nozzle replacement efficiency, enhances connection stability, prevents nozzles from loosening, ensures the reliability and cleaning effect of cleaning operations, and extends nozzle life.
Smart Images

Figure CN224371811U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of live cleaning spray gun technology, and in particular to a nozzle replacement structure for a live cleaning spray gun. Background Technology
[0002] A live-line cleaning spray gun is a tool specifically designed for cleaning equipment while it is energized. It removes dust, oil, and other contaminants from the equipment surface by spraying a specific cleaning agent, ensuring the equipment operates normally and without electric shock. This effectively maintains the cleanliness and operational efficiency of the equipment, ensures stable operation, and extends its service life. It is widely used in the daily maintenance and cleaning of equipment in fields such as power, communications, and industrial automation.
[0003] Because when using a spray gun, the thumb is often in constant contact with the pressing button, it is easy to accidentally touch the pressing button during operation, which may cause the spray gun to spray incorrectly, potentially causing injury to the operator or other personnel. In addition, when the nozzle is not in use, dust will accumulate on the nozzle, leading to blockages that need to be cleaned.
[0004] Existing patent (publication number: CN217141436U) discloses an insulating spray gun for live-line cleaning, relating to the field of insulating spray gun technology. This insulating spray gun for live-line cleaning includes an insulating spray gun body, a handle mounted at the bottom of the gun body, a nozzle mounted at one end of the gun body, and a press-button at the bottom of the gun body. Ratchets are rotatably connected to both sides of the handle, and rotating plates are fixedly connected to one side of each ratchet. A push plate is fixedly connected between the two rotating plates. When a person presses the press-button, pressing the connecting frame with their thumb causes the connecting frame to rotate the pawl around the fixed rod, thus moving the pawl away from the ratchet and engaging the press-button. This causes the press-button to push the push plate, thereby spraying. When retracting, releasing the press-button causes the spring to push the push plate, which in turn pushes the press-button back to its original position.
[0005] To address the aforementioned issues, existing patents offer solutions. However, the nozzle replacement structure of existing live-line cleaning spray guns mostly uses threaded connections, which require repeated alignment and tightening during installation and maintenance, resulting in low replacement efficiency. Furthermore, uneven force can easily cause wear on the connection points, and the nozzles are prone to loosening or even falling off during high-pressure operations. In addition, impurities in the cleaning medium can easily clog the nozzles during long-term use, making subsequent maintenance more troublesome and affecting the working efficiency of the live-line cleaning spray gun.
[0006] Therefore, a nozzle replacement structure for an electrically powered cleaning spray gun is proposed. Utility Model Content
[0007] The purpose of this utility model is to provide a nozzle replacement structure for a live-line cleaning spray gun, which solves the problems of existing nozzle replacement structures for live-line cleaning spray guns, which mostly use threaded connections. During installation and maintenance, repeated alignment and tightening are required, resulting in low replacement efficiency. Furthermore, uneven force can easily cause wear on the connection parts, and the nozzle is prone to loosening or even falling off during high-pressure operations. At the same time, impurities in the cleaning medium can easily clog the nozzle during long-term use, making subsequent maintenance more troublesome and affecting the working efficiency of the live-line cleaning spray gun.
[0008] To achieve the above objectives, this utility model provides the following technical solution: a nozzle replacement structure for an electrically charged cleaning spray gun, comprising a spray gun structure, a first limiting ring provided on the surface of the spray gun structure, a nozzle structure provided on the left side of the spray gun structure, a second limiting ring provided on the surface of the nozzle structure, a first limiting frame engaged with the surface of the first limiting ring, the inner wall of the first limiting frame engaged with the surface of the second limiting ring, and a filter mechanism engaged with the inner wall of the nozzle structure;
[0009] The filtration mechanism includes a filter frame, a filter cartridge, and a limiting block. The left side of the limiting block is bolted to the right side of the filter cartridge, the surface of the filter frame is bolted to the inner wall of the filter cartridge, and the surface of the limiting block is engaged with the inner wall of the nozzle structure.
[0010] Preferably, a positioning block is fixedly connected to the right side of the nozzle structure, and the surface of the positioning block is engaged with the inner wall of the spray gun structure.
[0011] Preferably, a sealing ring is bonded to the inner wall of the nozzle structure, and the surface of the sealing ring is engaged with the inner wall of the spray gun structure.
[0012] Preferably, a fixing rod is bolted to the left side of the spray gun structure, and a rotating wheel frame is bolted to the surface of the fixing rod.
[0013] Preferably, the surface of the wheel frame is rotatably connected to a first connecting component, and the bottom of the first connecting component is bolted to the top of the first limiting frame.
[0014] Preferably, the surface of the rotating wheel frame is rotatably connected to a second connecting assembly, the bottom of the second connecting assembly is bolted to a second limiting frame, the inner wall of the second limiting frame is respectively engaged with the surfaces of the first limiting ring and the second limiting ring, and the rear side of the second limiting frame contacts the front side of the first limiting frame.
[0015] Preferably, a connecting block is bolted to the bottom of the first limiting frame, and a buckle assembly is bolted to the front side of the connecting block; a connecting frame is bolted to the bottom of the second limiting frame, and the surface of the buckle assembly engages with the inner wall of the connecting frame.
[0016] Preferably, an auxiliary limiting component is bolted to the bottom of the rotating wheel frame, and the surface of the auxiliary limiting component is respectively engaged with the inner walls of the first limiting frame and the second limiting frame.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] 1. This application, by setting up a filtration mechanism, fixes the filter cartridge to the position of the limiting block and the filter frame during use. This can effectively intercept impurities in the cleaning fluid, preventing particulate pollutants from clogging the nozzle structure or damaging internal components. At the same time, the combination of the filter cartridge and filter frame facilitates regular disassembly, cleaning or replacement, ensuring continuous and effective filtration, improving the anti-clogging ability and service life of the nozzle structure, and ensuring the stability and cleaning effect of live cleaning operations.
[0019] 2. This application, by setting a first limiting bracket, allows the nozzle structure to be moved to the left side of the spray gun structure during use. The first limiting ring is used to fix the nozzle structure to the spray gun structure, and the second limiting ring is used to fix the nozzle structure to the position. This facilitates subsequent locking of the nozzle structure onto the surfaces of the first and second limiting rings, thus restricting the position of the nozzle structure and completing the nozzle structure installation. This improves replacement efficiency, enhances the stability of the connection parts, prevents the nozzle structure from loosening and falling off during high-pressure spraying, and ensures the reliability of the cleaning operation. Attached Figure Description
[0020] Figure 1 This is an overall structural diagram of the nozzle replacement structure for an electrically powered cleaning spray gun according to this utility model.
[0021] Figure 2 This is a structural diagram of the nozzle structure of this utility model;
[0022] Figure 3 This is a structural diagram of the filtration mechanism of this utility model;
[0023] Figure 4 This is a structural diagram of the first limiting frame of this utility model;
[0024] Figure 5 This is a structural diagram of the auxiliary limiting component of this utility model.
[0025] In the diagram, 1 is the spray gun structure; 2 is the filtration mechanism; 201 is the filter frame; 202 is the filter cartridge; 203 is the limiting block; 3 is the first limiting ring; 4 is the nozzle structure; 5 is the second limiting ring; 6 is the first limiting frame; 7 is the positioning block; 8 is the sealing ring; 9 is the fixing rod; 10 is the rotating frame; 11 is the first connecting assembly; 12 is the second connecting assembly; 13 is the second limiting frame; 14 is the connecting block; 15 is the buckle assembly; 16 is the connecting frame; and 17 is the auxiliary limiting assembly. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] Please see Figure 1-5 The present invention provides the following technical solution:
[0028] A nozzle replacement structure for an electrically powered cleaning spray gun includes a spray gun structure 1, a first limiting ring 3 on the surface of the spray gun structure 1, a nozzle structure 4 on the left side of the spray gun structure 1, a second limiting ring 5 on the surface of the nozzle structure 4, a first limiting frame 6 engaged with the surface of the first limiting ring 3, the inner wall of the first limiting frame 6 engaged with the surface of the second limiting ring 5, and a filter mechanism 2 engaged with the inner wall of the nozzle structure 4.
[0029] The filter mechanism 2 includes a filter frame 201, a filter cartridge 202 and a limiting block 203. The left side of the limiting block 203 is bolted to the right side of the filter cartridge 202, the surface of the filter frame 201 is bolted to the inner wall of the filter cartridge 202, and the surface of the limiting block 203 is engaged with the inner wall of the nozzle structure 4.
[0030] In this embodiment: By setting up a filter mechanism 2, the filter cartridge 202 is fixed to the position of the limiting block 203 during use, and the filter cartridge 202 is fixed to the position of the filter frame 201. This can efficiently intercept impurities in the cleaning fluid, preventing particulate pollutants from clogging the nozzle of the nozzle structure 4 or wearing down internal components. At the same time, the combination of the filter cartridge 202 and the filter frame 201 facilitates regular disassembly, cleaning, or replacement, ensuring continuous and effective filtration, improving the anti-clogging ability and service life of the nozzle structure 4, and ensuring the stability and cleaning effect of live cleaning operations. By setting up a first limiting frame 6, the nozzle structure 4 is moved to the left side of the spray gun structure 1 during use, and the first limiting ring 3 is fixed to the position of the spray gun structure 1, and the second limiting ring 5 is fixed to the position of the nozzle structure 4. This facilitates the subsequent locking of the nozzle structure 4 to the surface of the first limiting ring 3 and the second limiting ring 5, thus limiting the position of the nozzle structure 4 and completing the installation of the nozzle structure 4. This improves replacement efficiency, enhances the stability of the connection parts, prevents the nozzle structure 4 from loosening and falling off during high-pressure spraying, and ensures the reliability of the cleaning operation.
[0031] Specifically, such as Figure 3 As shown, a positioning block 7 is fixedly connected to the right side of the nozzle structure 4, and the surface of the positioning block 7 is engaged with the inner wall of the spray gun structure 1.
[0032] Specifically, such as Figure 2 As shown, a sealing ring 8 is bonded to the inner wall of the nozzle structure 4, and the surface of the sealing ring 8 is engaged with the inner wall of the spray gun structure 1.
[0033] Specifically, such as Figure 2 , Figure 5 As shown, a fixing rod 9 is bolted to the left side of the spray gun structure 1, and a rotating wheel frame 10 is bolted to the surface of the fixing rod 9.
[0034] In this embodiment: by setting a positioning block 7, the positioning block 7 is fixed to the position of the nozzle structure 4 during use, which facilitates the subsequent engagement of the nozzle structure 4 with the positioning block 7 on the inner wall of the spray gun structure 1, preventing the nozzle structure 4 from shifting or misaligning during use. By setting a sealing ring 8, the sealing performance of the connection can be effectively enhanced to avoid leakage of cleaning fluid. By setting a fixing rod 9 and a rotating wheel frame 10, the rotating wheel frame 10 can be stably fixed, and the subsequent auxiliary first limiting frame 6 can be rotated and opened.
[0035] Specifically, such as Figure 4 As shown, a first connecting component 11 is rotatably connected to the surface of the wheel frame 10, and the bottom of the first connecting component 11 is bolted to the top of the first limiting frame 6.
[0036] Specifically, such as Figure 4 As shown, a second connecting assembly 12 is rotatably connected to the surface of the rotating wheel frame 10. A second limiting frame 13 is bolted to the bottom of the second connecting assembly 12. The inner wall of the second limiting frame 13 is engaged with the surfaces of the first limiting ring 3 and the second limiting ring 5 respectively. The rear side of the second limiting frame 13 contacts the front side of the first limiting frame 6.
[0037] In this embodiment: by setting a first connecting component 11, a second connecting component 12, and a second limiting frame 13, the first limiting frame 6 rotates through the first connecting component 11 and the second limiting frame 13 rotates through the second connecting component 12 during use, so that the first limiting frame 6 and the second limiting frame 13 can flexibly open and close around the rotating wheel frame 10 and accurately engage with the surfaces of the first limiting ring 3 and the second limiting ring 5. When disassembling, they can be separated by rotating in the opposite direction, which improves the convenience and efficiency of nozzle replacement.
[0038] Specifically, such as Figure 4 As shown, a connecting block 14 is bolted to the bottom of the first limiting frame 6, and a buckle assembly 15 is bolted to the front side of the connection. A connecting frame 16 is bolted to the bottom of the second limiting frame 13, and the surface of the buckle assembly 15 engages with the inner wall of the connecting frame 16.
[0039] Specifically, such as Figure 5 As shown, an auxiliary limiting component 17 is bolted to the bottom of the rotating wheel frame 10, and the surface of the auxiliary limiting component 17 is engaged with the inner wall of the first limiting frame 6 and the second limiting frame 13 respectively.
[0040] In this embodiment: the buckle assembly 15 at the bottom of the first limiting frame 6 engages with the connecting frame 16 of the second limiting frame 13 to form a locking guarantee, which can prevent the first limiting frame 6 and the second limiting frame 13 from accidentally falling off during use; the auxiliary limiting assembly 17 at the bottom of the rotating frame 10 engages with the inner wall of the first limiting frame 6 and the second limiting frame 13, which plays an auxiliary limiting and supporting role for the first limiting frame 6 and the second limiting frame 13, increasing the stability of the first limiting frame 6 and the second limiting frame 13 when fixed.
[0041] Working Principle: During the use of the spray gun structure 1, the filter mechanism 2 is installed. During use, the positions of the filter cartridge 202 and the filter frame 201 are fixed by the limiting block 203. This effectively intercepts impurities in the cleaning fluid, preventing particulate contaminants from clogging the nozzles of the spray head structure 4 or wearing down internal components. Simultaneously, the combination of the filter cartridge 202 and the filter frame 201 facilitates regular disassembly, cleaning, or replacement, ensuring continuous and effective filtration. This enhances the anti-clogging ability and service life of the spray head structure 4, guaranteeing the stability of live-line cleaning operations. The cleaning effect is achieved by setting the first limiting bracket 6. During use, the nozzle structure 4 is moved to the left side of the spray gun structure 1 and fixed to the position of the spray gun structure 1 by the first limiting ring 3 and the second limiting ring 5. This facilitates the subsequent locking of the nozzle structure 4 to the surface of the first limiting ring 3 and the second limiting ring 5 by the first limiting bracket 6, thus restricting the position of the nozzle structure 4 and completing the installation of the nozzle structure 4. This improves the replacement efficiency, enhances the stability of the connection parts, prevents the nozzle structure 4 from loosening and falling off during high-pressure spraying, and ensures the reliability of the cleaning operation.
[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A nozzle replacement structure for an electrically charged cleaning spray gun, comprising a spray gun structure (1), characterized in that: The surface of the spray gun structure (1) is provided with a first limiting ring (3), the left side of the spray gun structure (1) is provided with a nozzle structure (4), the surface of the nozzle structure (4) is provided with a second limiting ring (5), the surface of the first limiting ring (3) is engaged with a first limiting frame (6), the inner wall of the first limiting frame (6) is engaged with the surface of the second limiting ring (5), and the inner wall of the nozzle structure (4) is engaged with a filter mechanism (2). The filtration mechanism (2) includes a filter frame (201), a filter cartridge (202), and a limiting block (203). The left side of the limiting block (203) is bolted to the right side of the filter cartridge (202), the surface of the filter frame (201) is bolted to the inner wall of the filter cartridge (202), and the surface of the limiting block (203) is engaged with the inner wall of the nozzle structure (4).
2. The nozzle replacement structure for an electrically powered cleaning spray gun according to claim 1, characterized in that: A positioning block (7) is fixedly connected to the right side of the nozzle structure (4), and the surface of the positioning block (7) is engaged with the inner wall of the spray gun structure (1).
3. The nozzle replacement structure for an electrically powered cleaning spray gun according to claim 1, characterized in that: The inner wall of the nozzle structure (4) is bonded with a sealing ring (8), and the surface of the sealing ring (8) is engaged with the inner wall of the spray gun structure (1).
4. The nozzle replacement structure for an electrically powered cleaning spray gun according to claim 1, characterized in that: A fixing rod (9) is bolted to the left side of the spray gun structure (1), and a rotating wheel frame (10) is bolted to the surface of the fixing rod (9).
5. The nozzle replacement structure for an electrically powered cleaning spray gun according to claim 4, characterized in that: The surface of the wheel frame (10) is rotatably connected to a first connecting component (11), the bottom of which is bolted to the top of the first limiting frame (6).
6. The nozzle replacement structure for an electrically powered cleaning spray gun according to claim 4, characterized in that: The surface of the rotating frame (10) is rotatably connected to a second connecting component (12), and the bottom of the second connecting component (12) is bolted with a second limiting frame (13). The inner wall of the second limiting frame (13) is engaged with the surfaces of the first limiting ring (3) and the second limiting ring (5), respectively, and the rear side of the second limiting frame (13) contacts the front side of the first limiting frame (6).
7. The nozzle replacement structure for an electrically powered cleaning spray gun according to claim 6, characterized in that: The bottom of the first limiting frame (6) is bolted with a connecting block (14), and the front side of the connecting block is bolted with a buckle assembly (15). The bottom of the second limiting frame (13) is bolted with a connecting frame (16), and the surface of the buckle assembly (15) is engaged with the inner wall of the connecting frame (16).
8. The nozzle replacement structure for an electrically powered cleaning spray gun according to claim 4, characterized in that: An auxiliary limiting component (17) is bolted to the bottom of the rotating wheel frame (10), and the surface of the auxiliary limiting component (17) is respectively engaged with the inner wall of the first limiting frame (6) and the second limiting frame (13).