A folding cleaning gun
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAIZHOU LEYI CLEANING EQUIPMENT CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-06-23
AI Technical Summary
Existing high-pressure cleaning guns have a large gun body structure, are inconvenient to store, and are cumbersome and unstable to fold and unfold.
It adopts a rear hinge and front snap-fit structure design, and folding and unfolding are achieved by matching the connecting block and the connecting groove. Combined with the locking structure of the convex strip and the groove, it ensures simple and stable operation.
It achieves a minimized size when folded, making it easy to carry; when unfolded, the structure is stable; and the operation is simple and quick, improving efficiency.
Smart Images
Figure CN224389029U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of high-pressure cleaning equipment, and relates to a folding cleaning gun. Background Technology
[0002] High-pressure cleaning guns are a common type of high-pressure cleaning equipment. They typically employ a one-piece gun housing structure, containing a motor, water pump, and power supply. Upon startup, water is drawn in through the inlet of the gun housing. The motor drives the water pump to pressurize the water, creating high-pressure water, which is then ejected from the nozzle at the gun head. This high-pressure water acts on the surface of objects, effectively cleaning or removing dirt. However, existing high-pressure cleaning guns have a large space-consuming structure, making them inconvenient to store.
[0003] Chinese utility model CN213669974U (publication date: 2021-07-13) discloses a foldable high-pressure water gun, including a water gun body, which includes a gun body and a handle. A control handle is movably installed on the side of the gun body. The beneficial effects achieved by this utility model are: a second connecting rod is installed at the bottom of the gun body, and a connector is installed at the top of the handle. The connector and the side of the second connecting rod are both provided with first connecting holes, and the two first connecting holes are detachably connected by a first connecting bolt; a first connecting rod is installed on the side of the handle, and the first connecting rod and the second connecting hole on the control handle are detachably connected by a second connecting bolt. When the water gun body is not in use, the second connecting bolt is removed, and then the first connecting bolt is rotated in the reverse direction to loosen the connection between the connector and the second connecting rod. At this time, the handle can be folded, and then the first connecting bolt is rotated in the forward direction again to fix the folded handle.
[0004] The aforementioned foldable high-pressure water gun requires disassembling the connecting bolts when folding and unfolding, which is cumbersome and requires tools. Moreover, once unfolded, it is only fixed by bolts, resulting in poor structural stability. Utility Model Content
[0005] This invention addresses the shortcomings of existing technologies by providing a folding cleaning gun, which has the advantages of simple and quick operation, small folding size, and stable unfolded structure.
[0006] To solve the above-mentioned technical problems, the objective of this utility model is achieved through the following technical solution:
[0007] A folding cleaning gun includes a gun body shell and a gun base shell. The gun body shell houses a motor-driven water pump, and the gun base shell houses a power source electrically connected to the motor. The bottom of the gun body shell has a gun body connecting portion with a connecting block on its front side, and the top of the gun base shell has a gun base connecting portion with a U-shaped connecting groove on its front side. The gun body connecting portion and the rear side of the gun base connecting portion are hinged. The connecting block and the connecting groove have matching shapes and sizes. When the connecting block is engaged in the connecting groove, the gun body shell unfolds horizontally; when the connecting block disengages from the connecting groove, the gun body shell folds vertically.
[0008] In the aforementioned folding cleaning gun, a protruding strip is provided on the bottom rear side of the connecting block, and a groove is provided on the bottom rear side of the connecting groove to engage and lock with the protruding strip; preferably, the protruding strip is arranged transversely through the connecting block, and the groove is arranged transversely through the connecting groove; preferably, the cross-section of both the protruding strip and the groove is semi-circular.
[0009] In the aforementioned folding cleaning gun, when the gun body is in the unfolded state, the outer peripheral surfaces of the gun body connecting part and the gun base connecting part are flush; preferably, except for the hinge, all other surfaces form continuous surfaces.
[0010] In the aforementioned folding cleaning gun, a cleaning gun start / stop switch is provided on the front side of the gun body connecting part.
[0011] In the aforementioned folding cleaning gun, both the gun body shell and the gun base shell are formed by fastening together two shells, left and right. The gun base connecting parts of the left and right shells of the gun base shell are respectively provided with a coaxial first hinge shaft and a second hinge shaft. The second hinge shaft is inserted into the inner hole of the first hinge shaft to form a complete hinge shaft. The gun body connecting parts of the left and right shells of the gun body shell are respectively provided with a first shaft hole for the first hinge shaft to pass through and a second shaft hole for the second hinge shaft to pass through.
[0012] In the aforementioned folding cleaning gun, the radial dimension of the first hinge shaft is greater than the radial dimension of the second hinge shaft, and the inner diameters of the first shaft hole and the second shaft hole are respectively adapted to the first hinge shaft and the second hinge shaft.
[0013] In the aforementioned folding cleaning gun, a first threading hole is provided on the top rear side of the gun base connecting part, and a second threading hole is provided on the bottom rear side of the gun body connecting part. The first threading hole and the second threading hole are correspondingly provided and located near the second hinge shaft and the second shaft hole, respectively.
[0014] Compared with the prior art, this utility model has the following advantages:
[0015] This invention provides a folding cleaning gun with an improved folding structure. It employs a rear hinge and a front snap-fit mechanism, allowing for locking upon turning in and folding upon turning out, eliminating the need for tools or disassembly, thus significantly improving operational efficiency. When folded, the gun body and base are parallel, minimizing size for easy storage and carrying. When unfolded, the connecting block engages in a connecting groove, forming a robust, wraparound snap-fit structure that ensures stability in the unfolded state. Therefore, this invention offers simple and quick operation.
[0016] It has the advantages of small folding size and stable unfolding structure. Attached Figure Description
[0017] Figure 1 This is a perspective view of the present invention (in unfolded state);
[0018] Figure 2 yes Figure 1 A cross-sectional view (along the motor axis);
[0019] Figure 3 yes Figure 2 A magnified view of a portion of the image;
[0020] Figure 4 yes Figure 1 A cross-sectional view (along the radial direction of the motor);
[0021] Figure 5 This is a perspective view of the present invention (folded state);
[0022] Figure 6 This is a perspective view of the gun mount housing of this utility model;
[0023] Figure 7 This is a perspective view of the gun body shell of this utility model;
[0024] Reference numerals: 1. Gun body shell; 11. Motor; 12. Water pump; 13. Connecting block; 14. Gun body connecting part; 15. Protrusion; 16. Cleaning gun start / stop switch; 17. First shaft hole; 18. Second shaft hole; 19. Second wiring hole; 2. Gun base shell; 21. Power supply; 22. Connecting groove; 23. Gun base connecting part; 24. Groove; 25. First hinge shaft; 26. Second hinge shaft; 27. First wiring hole. Detailed Implementation
[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. See also: Figure 1-7 :
[0026] A folding cleaning gun includes a gun body shell 1 and a gun base shell 2. The gun body shell 1 is equipped with a water pump 12 driven by a motor 11. The gun base shell 2 is equipped with a power supply 21 (a battery in this embodiment) electrically connected to the motor 11. The bottom of the gun body shell 1 is provided with a gun body connecting part 14 with a connecting block 13 on the front side. The top of the gun base shell 2 is provided with a gun base connecting part 23 with a U-shaped connecting groove 22 on the front side. The gun body connecting part 14 is hinged to the rear side of the gun base connecting part 23. The connecting block 13 and the connecting groove 22 have a matching shape and size. When the connecting block 13 is inserted into the connecting groove 22, the gun body shell 1 unfolds horizontally. When the connecting block 13 is disengaged from the connecting groove 22, the gun body shell 1 folds vertically.
[0027] The unfolded state of this embodiment is shown in the attached figure. Figure 1 As shown, the cleaning gun can be used normally in the same way as a regular cleaning gun. When folding is required, hold the gripping area of the gun base shell 2 with your hand, and then use your other hand to rotate the gun body shell 1 counterclockwise. At this time, the gun body shell 1 and the gun base shell 2 rotate relative to each other around the hinge axis, so that the connecting block 13 of the gun body connecting part 14 gradually disengages from the connecting groove 22 of the gun base connecting part 23. When it is rotated to vertical, the folding is completed (in this utility model, the vertical folding means that it is roughly in the vertical direction, and there can be a small angle deviation such as within 10°).
[0028] The folding state of this embodiment is shown in the attached figure. Figure 5 As shown, the folded cleaning gun can be placed in a packaging box for easy transportation or storage. When it needs to be unfolded, hold the gripping area of the gun base shell 2 with your hand, and then use your other hand to rotate the gun body shell 1 clockwise. At this time, the gun body shell 1 and the gun base shell 2 rotate relative to each other around the hinge axis. The connecting block 13 of the gun body connecting part 14 gradually engages into the connecting groove 22 of the gun base connecting part 23. When it is rotated to the horizontal position, the connecting block 13 is fully engaged into the connecting groove 22, and the unfolding is completed (in this utility model, the horizontal unfolding means that it is roughly in the horizontal direction, and there can be a small angle deviation such as within 10°).
[0029] This embodiment further adds locking and limiting structures to increase the stability of the cleaning gun during use. Specifically:
[0030] The bottom rear side of the connecting block 13 is provided with a protrusion 15, and the bottom rear side of the connecting groove 22 is provided with a groove 24 that engages and locks with the protrusion 15; preferably, the protrusion 15 is arranged transversely through the connecting block 13, and the groove 24 is arranged transversely through the connecting groove 22; preferably, the cross-sections of the protrusion 15 and the groove 24 are both semi-circular. When the gun body shell 1 is unfolded to the predetermined position, the protrusion 15 is just inserted into the groove 24 to form a locking and limiting structure, preventing relative shaking between the gun body shell 1 and the gun base shell 2. When folding is required, only sufficient external force needs to be applied to make the protrusion 15 disengage from the groove 24.
[0031] When the gun body shell 1 is in the unfolded state, the outer peripheral surfaces of the gun body connecting part 14 and the gun base connecting part 23 are flush; preferably, except for the hinge, the other surfaces are all continuous surfaces; the above structure can form a mutually opposing support structure, further increasing the stability during use.
[0032] A cleaning gun start / stop switch 16 is provided on the front side of the gun body connecting part 14; the start / stop of the motor 11 can be controlled by the cleaning gun start / stop switch 16, thereby controlling the start / stop of the cleaning gun.
[0033] This embodiment employs a one-piece molded hinge structure. When assembly is complete, the hinge structure is also assembled simultaneously. The nested hinge structure of this embodiment can improve the hinge strength and durability. Specifically:
[0034] The gun body shell 1 and the gun base shell 2 are both formed by fastening two shells together. The gun base connecting part 23 of the left and right shells of the gun base shell 2 is provided with a coaxial first hinge shaft 25 and a second hinge shaft 26 respectively. The second hinge shaft 26 is inserted into the inner hole of the first hinge shaft 25 to form a complete hinge shaft. The gun body connecting part 14 of the left and right shells of the gun body shell 1 is provided with a first shaft hole 17 for the first hinge shaft 25 to pass through and a second shaft hole 18 for the second hinge shaft 26 to pass through.
[0035] The radial dimension of the first hinge shaft 25 is greater than the radial dimension of the second hinge shaft 26, and the inner dimensions of the first shaft hole 17 and the second shaft hole 18 are adapted to the first hinge shaft 25 and the second hinge shaft 26, respectively.
[0036] This embodiment further optimizes the cable threading structure by placing the threading hole in a location corresponding to the hinge structure. This shortens the cable bending path and prevents damage from pulling during folding. Specifically:
[0037] The gun base connecting part 23 is provided with a first threading hole 27 on the top rear side, and the gun body connecting part 14 is provided with a second threading hole 19 on the bottom rear side. The first threading hole 27 and the second threading hole 19 are provided correspondingly and are located near the second hinge shaft 26 and the second shaft hole 18, respectively.
[0038] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.
Claims
1. A folding cleaning gun, comprising a gun body shell (1) and a gun base shell (2), wherein a water pump (12) driven by a motor (11) is disposed inside the gun body shell (1), and a power supply (21) electrically connected to the motor (11) is disposed inside the gun base shell (2), characterized in that, The bottom of the gun body shell (1) is provided with a gun body connecting part (14) with a connecting block (13) on the front side, and the top of the gun base shell (2) is provided with a gun base connecting part (23) with a U-shaped connecting groove (22) on the front side. The gun body connecting part (14) and the gun base connecting part (23) are hinged to each other at the rear. The connecting block (13) and the connecting groove (22) have matching shapes and sizes. When the connecting block (13) is inserted into the connecting groove (22), the gun body shell (1) unfolds horizontally. When the connecting block (13) is disengaged from the connecting groove (22), the gun body shell (1) folds vertically.
2. A folding cleaning gun according to claim 1, characterized in that, The bottom rear side of the connecting block (13) is provided with a protrusion (15), and the bottom rear side of the connecting groove (22) is provided with a groove (24) that engages and locks with the protrusion (15).
3. A folding cleaning gun according to claim 2, characterized in that, The protrusion (15) is provided across the connecting block (13), and the groove (24) is provided across the connecting slot (22).
4. A folding cleaning gun according to claim 1, characterized in that, When the gun body shell (1) is in the unfolded state, the outer peripheral surfaces of the gun body connecting part (14) and the gun base connecting part (23) are flush.
5. A folding cleaning gun according to claim 1, characterized in that, A cleaning gun start / stop switch (16) is provided on the front side of the gun body connecting part (14).
6. A folding cleaning gun according to claim 1, characterized in that, The gun body shell (1) and the gun base shell (2) are both formed by fastening two shells on the left and right sides. The gun base connecting part (23) of the left and right shells of the gun base shell is provided with a coaxial first hinge shaft (25) and a second hinge shaft (26). The second hinge shaft (26) is inserted into the inner hole of the first hinge shaft (25) to form a complete hinge shaft. The gun body connecting part (14) of the left and right shells of the gun body shell (1) is provided with a first shaft hole (17) for the first hinge shaft (25) to pass through and a second shaft hole (18) for the second hinge shaft (26) to pass through.
7. A folding cleaning gun according to claim 6, characterized in that, The radial dimension of the first hinge shaft (25) is greater than that of the second hinge shaft (26), and the inner dimensions of the first shaft hole (17) and the second shaft hole (18) are adapted to the first hinge shaft (25) and the second hinge shaft (26), respectively.
8. A folding cleaning gun according to claim 7, characterized in that, The gun base connecting part (23) has a first threading hole (27) on the top rear side and the gun body connecting part (14) has a second threading hole (19) on the bottom rear side. The first threading hole (27) and the second threading hole (19) are respectively located near the second hinge shaft (26) and the second shaft hole (18).