A combined high-pressure cleaning lance

Abstract

This utility model relates to the field of high-pressure nozzle technology, and in particular to a combined high-pressure cleaning nozzle. Addressing the problem of time-consuming and laborious disassembly and assembly of existing high-pressure nozzles, the following solution is proposed: It includes a connecting pipe and a nozzle. One end of the nozzle is fitted with a connecting cover. A positioning post is fixed to the inner ring of the connecting cover, and multiple fixing holes are formed on the outer ring of the connecting cover. The outer circumference of the connecting pipe has a sliding groove matching the positioning post and a locking mechanism for locking the connecting cover. The inner ring of the connecting cover fits into the outer ring of the connecting pipe. The sliding groove includes a transition groove arranged along the axial direction of the connecting pipe and a locking groove spirally arranged along the outer circumference of the connecting pipe. One end of the locking groove connects to the transition groove. This utility model greatly simplifies the connection and fixing method of the nozzle, making it more labor-saving and convenient for users to disassemble and assemble the nozzle.

Description

Technical Field

[0001] This utility model relates to the field of high-pressure nozzles, and in particular to a combined high-pressure cleaning nozzle. Background Technology

[0002] In the field of high-pressure cleaning equipment, the nozzle, as a core component, directly affects the maintenance efficiency and cleaning effect due to its connection method and durability. In existing technologies, high-pressure nozzles generally use threaded connections. While this connection method is simple, the threads are prone to jamming due to scale and corrosion after long-term use. Disassembly requires repeated rotation or even forceful removal with tools, leading to increased maintenance costs. For example, the nozzle disclosed in patent CN202321082408.9 uses bolt fixing, requiring the removal of multiple screws for replacement, which is time-consuming and prone to damage due to corrosion, causing unnecessary inconvenience to users. Therefore, this solution proposes a combined high-pressure cleaning nozzle. Utility Model Content

[0003] The present invention proposes a combined high-pressure cleaning nozzle, which solves the problem of time-consuming and labor-intensive disassembly and assembly of high-pressure nozzles in the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A combined high-pressure cleaning nozzle includes a connecting pipe and a nozzle. One end of the nozzle is fitted with a connecting cover. A positioning post is fixed to the inner ring of the connecting cover, and multiple fixing holes are opened on the outer ring of the connecting cover.

[0006] The outer periphery of the connecting tube is provided with a sliding groove that matches the positioning post and a locking mechanism for locking the connecting cover, and the inner ring of the connecting cover matches the outer ring of the connecting tube.

[0007] The slide groove includes a transition groove arranged along the axial direction of the connecting pipe and a locking groove spirally arranged along the outer circumference of the connecting pipe, with one end of the locking groove connected to the transition groove;

[0008] The locking mechanism includes a limiting ring sleeved on the outer periphery of the connecting pipe and a plurality of fixing posts mounted on the limiting ring by elastic elements, and the fixing posts engage with fixing holes.

[0009] The outer periphery of the connecting pipe is also equipped with an adjustment component for releasing the locking mechanism from locking the connecting cover.

[0010] The above technical solution greatly simplifies the connection and fixing of the nozzles, making it easier and more convenient for users to assemble and disassemble the nozzles.

[0011] As a further improvement to the above solution, the elastic element includes a mounting block and a spring 1 that are movably sleeved on the outer periphery of the fixed column. One end of the mounting block is fixedly connected to the side wall of the limiting ring. A stop block is fixed at the end of the fixed column away from the connecting pipe. One end of the spring 1 is fixedly connected to the mounting block, and the other end of the spring 1 is fixedly connected to the stop block.

[0012] As a further improvement to the above solution, the fixed post has an inclined surface at one end near the connecting pipe, and the inclined surface faces away from the limiting ring.

[0013] As a further improvement to the above solution, one end of the stop block is fixed with a connecting post, and the adjustment assembly includes an adjustment ring that is rotatably sleeved on the outer circumference of the connecting pipe and a reset component installed between the adjustment ring and the connecting pipe. The adjustment ring has an adjustment groove on the side near the limiting ring, which is the same number as the fixed post, and the adjustment groove corresponds one-to-one with the connecting post. The adjustment groove is inclined from the inner ring of the adjustment ring to its outer ring. One end of the connecting post extends into the corresponding adjustment groove and slides with it.

[0014] As a further improvement to the above solution, the reset component is set to 2-3, and the reset component includes a connecting ring fixed to the outer wall of the adjusting ring away from the limiting ring by a fixing block, a second spring and a limiting plate movably sleeved on the outer periphery of the connecting ring, the connecting ring and the adjusting ring being coaxially arranged, one end of the limiting plate being fixedly connected to the outer wall of the connecting pipe, one end of the second spring being fixedly connected to the limiting plate, and the other end of the second spring being fixedly connected to the fixing block.

[0015] As a further improvement to the above solution, multiple anti-slip protrusions are evenly fixed on the outer periphery of the adjusting ring.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. By using the positioning post, slide groove and locking mechanism, the connection between the connecting cover and the connecting pipe can be gradually tightened by rotating the connecting cover. Finally, the connecting cover and the connecting pipe are locked by the fixing post inserted into the fixing hole, thereby facilitating the installation of the nozzle.

[0018] 2. By adjusting the settings of the components, the locking mechanism can be easily engaged, thereby facilitating the disassembly of the nozzle. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a structural diagram of the nozzle, connecting pipe, and locking mechanism.

[0021] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0022] Figure 4 This is a cross-sectional view of the connecting cover;

[0023] Figure 5 This is a schematic diagram of the structure of the adjustment plate and the reset component.

[0024] Explanation of key symbols:

[0025] 1. Connecting pipe; 2. Nozzle; 3. Connecting cover; 4. Limiting ring; 5. Adjusting ring; 6. Fixing hole; 7. Transition groove; 8. Locking groove; 9. Adjusting groove; 10. Connecting post; 11. Stop block; 12. Fixing post; 13. Mounting block; 14. Positioning post; 15. Anti-slip protrusion; 16. Connecting ring; 17. Limiting plate. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0027] Example 1:

[0028] Please combine Figure 1 This embodiment of a combined high-pressure cleaning nozzle includes a connecting pipe 1 and a nozzle 2. The connecting pipe 1 is fixed to a water pipe. One end of the nozzle 2 is fitted with a connecting cover 3. The inner ring of the connecting cover 3 is fixed with a positioning post 14. The outer ring of the connecting cover 3 has multiple fixing holes 6. A gasket is placed inside the connecting cover 3. The inner diameter of the gasket is larger than the inner diameter of the connecting cover 3. When the connecting pipe 1 is inserted into the connecting cover 3 and mates with the nozzle 2, the gasket is pressed between the connecting pipe 1 and the connecting cover 3, thereby enhancing the sealing between the two.

[0029] The outer periphery of the connecting pipe 1 is provided with a sliding groove that matches the positioning post 14 and a locking mechanism for locking the connecting cover 3. The inner ring of the connecting cover 3 matches the outer ring of the connecting pipe 1. The sliding groove includes a transition groove 7 arranged along the axial direction of the connecting pipe 1 and a locking groove 8 spirally arranged along the outer periphery of the connecting pipe 1. One end of the locking groove 8 is connected to the transition groove 7. When the nozzle 2 is connected to the connecting pipe 1, one end of the connecting pipe 1 is inserted into the connecting cover 3. During the insertion process, the positioning post 14 is inserted into the transition groove 7. After the positioning post 14 moves into the locking groove 8, the connecting cover 3 is rotated along the extension direction of the locking groove 8, so that the connecting pipe 1 is further inserted into the connecting cover 3. During the rotation of the connecting cover 3, the connecting pipe 1 can be pressed against the washer with less effort until the fixing post 12 is inserted into the fixing hole 6, thereby completing the fixing of the nozzle 2.

[0030] The locking mechanism includes a limiting ring 4 sleeved around the outer periphery of the connecting pipe 1 and multiple fixing posts 12 mounted on the limiting ring 4 by elastic elements. The fixing posts 12 engage with the fixing holes 6. The elastic elements include a mounting block 13 movably sleeved around the outer periphery of the fixing posts 12 and a spring. One end of the mounting block 13 is fixedly connected to the side wall of the limiting ring 4. A stop block 11 is fixed to the end of the fixing post 12 away from the connecting pipe 1. One end of the spring is fixedly connected to the mounting block 13, and the other end of the spring is fixedly connected to the stop block 11. Under the action of the spring, when the bottom of the fixing post 12 abuts against the outer ring of the connecting cover 3, the spring is in a compressed state. When the fixing post 12 moves to the position of the fixing hole 6, it will be locked into the fixing hole 6 under the action of the spring, thereby achieving the purpose of locking the connecting cover 3. After the fixing post 12 is pulled out to the outside of the fixing hole 6, the connecting cover 3 can be removed from the connecting pipe 1.

[0031] In this embodiment, the fixed post 12 has a bevel at one end near the connecting pipe 1, and the bevel faces away from the limiting ring 4. The bevel setting makes the fixed post 12 automatically move upward under the pressure of the edge of the connecting cover 3 after it comes into contact with the connecting cover 3, so that it will not block the movement of the connecting cover 3.

[0032] Example 2:

[0033] Combination Figures 1-3 and Figure 5 This embodiment, based on embodiment 1, further improves upon the following: An adjustment assembly for releasing the locking mechanism from locking the connecting cover 3 is also installed on the outer periphery of the connecting pipe 1. One end of the stop block 11 is fixed with a connecting post 10. The adjustment assembly includes an adjustment ring 5 rotatably sleeved on the outer periphery of the connecting pipe 1 and a reset component installed between the adjustment ring 5 and the connecting pipe 1. The adjustment ring 5 has the same number of adjustment grooves 9 as the fixed posts 12 on the side near the limiting ring 4, and each adjustment groove 9 corresponds one-to-one with a connecting post 10. The adjustment grooves 9 are inclined from the inner ring of the adjustment ring 5 towards its outer ring. One end of the connecting post 10 extends into its corresponding adjustment groove 9. When the adjusting ring 5 is rotated clockwise, the connecting post 10 will move along the adjusting groove 9 towards the outer ring of the adjusting ring 5 as the adjusting ring 5 rotates, since the fixed post 12 does not rotate. This allows multiple fixed posts 12 to be simultaneously pulled out of the fixing hole 6, thus facilitating the release of the locking mechanism. After that, the nozzle 2 can be easily removed from the connecting pipe 1. After the adjusting ring 5 is released, the spring 1 gradually returns to its original shape, and the fixed post 12 moves back to the side closer to the connecting pipe 1. The adjusting ring 5 also rotates counterclockwise under the pressure of the connecting post 10 and returns to its original position.

[0034] Two to three reset components are provided. Each reset component includes a connecting ring 16 fixed to the outer wall of the adjusting ring 5 away from the limiting ring 4 by a fixing block, a second spring and a limiting plate 17 movably sleeved on the outer periphery of the connecting ring 16. The connecting ring 16 and the adjusting ring 5 are coaxially arranged. One end of the limiting plate 17 is fixed to the outer wall of the connecting pipe 1, one end of the second spring is fixed to the limiting plate 17, and the other end of the second spring is fixed to the fixing block. The reset components can drive the adjusting ring 5 to automatically return to its original position after rotation, thereby further avoiding the situation where the adjusting ring 5 cannot return to its original position. After the adjusting ring 5 rotates clockwise, the second spring is compressed. After the adjusting ring 5 is released, the second spring returns to its original deformation, thereby driving the adjusting ring 5 to automatically rotate counterclockwise and return to its original deformation.

[0035] In this embodiment, multiple anti-slip protrusions 15 are evenly fixed on the outer periphery of the adjusting ring 5. The anti-slip protrusions 15 can effectively prevent slippage when rotating the adjusting ring 5.

[0036] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A combination high pressure cleaning lance comprising a connecting pipe and a nozzle, characterized in that One end of the nozzle is fitted with a connecting cover, the inner ring of the connecting cover is fixed with a positioning post, and the outer ring of the connecting cover is provided with multiple fixing holes. The outer periphery of the connecting tube is provided with a sliding groove that matches the positioning post and a locking mechanism for locking the connecting cover, and the inner ring of the connecting cover matches the outer ring of the connecting tube. The slide groove includes a transition groove arranged along the axial direction of the connecting pipe and a locking groove spirally arranged along the outer circumference of the connecting pipe, with one end of the locking groove connected to the transition groove; The locking mechanism includes a limiting ring sleeved on the outer periphery of the connecting pipe and a plurality of fixing posts mounted on the limiting ring by elastic elements, and the fixing posts engage with fixing holes. The outer periphery of the connecting pipe is also equipped with an adjustment component for releasing the locking mechanism from locking the connecting cover.

2. The combined high-pressure cleaning nozzle according to claim 1, characterized in that, The elastic element includes a mounting block and a spring 1 that are movably sleeved on the outer periphery of the fixed column. One end of the mounting block is fixedly connected to the side wall of the limiting ring. A stop block is fixed at the end of the fixed column away from the connecting pipe. One end of the spring 1 is fixedly connected to the mounting block, and the other end of the spring 1 is fixedly connected to the stop block.

3. The combined high-pressure cleaning nozzle according to claim 1, characterized in that, The fixed post has an inclined surface at one end near the connecting pipe, and the inclined surface faces away from the limiting ring.

4. A combined high-pressure cleaning nozzle according to claim 2, characterized in that, One end of the stop block is fixed with a connecting post. The adjustment assembly includes an adjustment ring that is rotatably sleeved on the outer circumference of the connecting pipe and a reset component installed between the adjustment ring and the connecting pipe. The adjustment ring has an adjustment groove on the side near the limiting ring, which is the same number as the fixed post. The adjustment groove corresponds one-to-one with the connecting post. The adjustment groove is inclined from the inner ring of the adjustment ring to the outer ring. One end of the connecting post extends into the corresponding adjustment groove and slides into it.

5. A combined high-pressure cleaning nozzle according to claim 4, characterized in that, The reset component is configured in 2-3 parts, and the reset component includes a connecting ring fixed to the outer wall of the adjusting ring away from the limiting ring by a fixing block, a second spring and a limiting plate movably sleeved on the outer periphery of the connecting ring, the connecting ring and the adjusting ring being coaxially arranged, one end of the limiting plate being fixedly connected to the outer wall of the connecting pipe, one end of the second spring being fixedly connected to the limiting plate, and the other end of the second spring being fixedly connected to the fixing block.

6. A combined high-pressure cleaning nozzle according to claim 4, characterized in that, The outer circumference of the adjusting ring is uniformly fixed with multiple anti-slip protrusions.

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