A folding cleaning gun

Abstract

This utility model belongs to the technical field of high-pressure cleaning equipment, and relates to a folding cleaning gun, including a gun body and a handle. A motor-driven water pump is installed inside the gun body. The gun body and the handle are hinged together by a hinge shaft. A hinge positioning structure is provided between the gun body and the handle. The hinge positioning structure includes an elastic ring and a positioning cavity. One of the gun body and the handle has a first hinge portion, and the elastic ring is circumferentially fixedly mounted on the first hinge portion. The other has a second hinge portion, and the positioning cavity is formed on the second hinge portion. The elastic ring has an annular portion protruding towards the positioning cavity and is accommodated within the positioning cavity. The outer peripheral wall of the elastic ring is formed with a positioning protrusion, and the inner peripheral wall of the positioning cavity is formed with a positioning groove. The folding cleaning gun provided by this utility model has the advantages of simple and quick operation, small folding volume, and stable unfolded structure.

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: A folding cleaning gun includes a gun body and a handle. A motor-driven water pump is installed inside the gun body. The gun body and handle are hinged together via a hinge shaft. A hinge positioning structure is provided between the gun body and handle. The hinge positioning structure includes an elastic ring and a positioning cavity. One of the gun body and handle has a first hinge portion, on which the elastic ring is circumferentially fixedly mounted. The other has a second hinge portion, on which the positioning cavity is formed. The elastic ring has an annular portion protruding towards the positioning cavity and is accommodated within the positioning cavity. A positioning protrusion is formed on the outer peripheral wall of the elastic ring, and a positioning groove is formed on the inner peripheral wall of the positioning cavity. The positioning protrusion and the positioning groove cooperate to form a positioning structure that limits the rotation angle.

[0007] In the aforementioned folding cleaning gun, the elastic ring is preferably made of metal.

[0008] In the aforementioned folding cleaning gun, a fixing groove is provided on the first hinge portion, and a fixing block is formed on the side of the elastic ring facing the first hinge portion, which can be inserted into the fixing groove. The fixing block cooperates with the fixing groove to achieve circumferential fixation of the elastic ring. The circumferential fixation of the elastic ring can also be achieved by other methods, such as welding.

[0009] In the aforementioned folding cleaning gun, the positioning protrusions are arranged in pairs and are symmetrically distributed with respect to the axis center of the hinge shaft. The positioning grooves are arranged in pairs accordingly, including a pair of unfolding positioning grooves for locking the unfolded state and a pair of folding positioning grooves for locking the folded state.

[0010] In the aforementioned folding cleaning gun, a pair of intermediate positioning grooves for providing intermediate angle locking are also provided between the unfolding positioning groove and the folding positioning groove; the setting position and included angle of the unfolding positioning groove and the folding positioning groove are determined according to the predetermined angle of unfolding and folding, and the intermediate positioning groove is centrally located between the unfolding positioning groove and the folding positioning groove.

[0011] In the aforementioned folding cleaning gun, the positioning protrusion and the outer peripheral wall of the elastic ring form a smooth arc transition, and the positioning groove and the inner peripheral wall of the positioning cavity form a smooth arc transition.

[0012] In the aforementioned folding cleaning gun, the gun body includes a first gun body shell and a second gun body shell that are snapped together from left to right, the handle includes a first handle shell and a second handle shell that are snapped together from left to right, the hinge shaft is formed in the first handle shell, the first gun body shell and the second gun body shell are rotatably connected to the hinge shaft, and the second handle shell is fixedly connected to the hinge shaft.

[0013] In the aforementioned folding cleaning gun, the first hinge portion is disposed on the first gun body housing, and the second hinge portion is disposed on the first handle housing.

[0014] In the aforementioned folding cleaning gun, a start / stop switch is provided on the side of the handle, and a wire hole is provided inside the gun body. The wire hole is located on the front side of the gun body cavity. The start / stop switch is electrically connected to the controller via a power cord and controls the start and stop of the motor. The power cord passes through the wire hole. The folding cleaning gun can be powered by a built-in power supply or an external power supply.

[0015] In the aforementioned folding cleaning gun, a display screen is provided on one side of the gun body. The display screen is electrically connected to the controller and is used to display usage information of the cleaning gun.

[0016] Compared with the prior art, this utility model has the following advantages: This invention provides a folding cleaning gun with an improved folding structure. It employs a combination of an elastic ring and a positioning cavity for locking, achieving locking upon insertion and folding upon removal, eliminating the need for tools or disassembly, thus significantly improving operational efficiency. Compared to other positioning and locking structures, the folding and unfolding operation of this invention is also smoother. This invention offers the advantages of simple and quick operation, small folding size, and a stable unfolded structure. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention (in unfolded state); Figure 2 This is a perspective view of the present invention (in a folded state); Figure 3 yes Figure 1 Exploded view; Figure 4 yes Figure 1 A cross-sectional view (along the motor axis); Figure 5 yes Figure 1 A cross-sectional view (radial along the motor); Figure 6 This is a schematic diagram of the structure of the hinged positioning assembly of this utility model; Figure 7 This is a perspective view of the elastic ring of this utility model; Reference numerals: 1. Gun body; 1a. First gun body shell; 1b. Second gun body shell; 2. Handle; 2a. First handle shell; 2b. Second handle shell; 3. Motor; 4. Water pump; 5. Hinge shaft; 6. Elastic ring; 7. Positioning cavity; 8. First hinge part; 9. Second hinge part; 10. Positioning protrusion; 11. Positioning groove; 11a. Unfolding positioning groove; 11b. Folding positioning groove; 11c. Intermediate positioning groove; 12. Fixing block; 13. Start / stop switch; 14. Cable hole; 15. Controller; 16. Display screen. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. See also: Figure 1-7 : A folding cleaning gun mainly consists of two parts: a gun body 1 and a handle 2. A water pump 4 driven by a motor 3 is installed inside the gun body 1. The gun body 1 and the handle 2 are hinged together by a hinge shaft 5, allowing them to rotate relative to each other and fold (e.g., ...). Figure 2 (as shown) and expanded (as shown) Figure 1 (As shown).

[0019] In this embodiment, a hinged positioning structure is provided between the gun body 1 and the handle 2. The hinged positioning structure includes an elastic ring 6 and a positioning cavity 7. Specifically, one of the gun body 1 and the handle 2 is provided with a first hinge portion 8, and the elastic ring 6 is circumferentially fixedly assembled on the first hinge portion 8; the other is provided with a second hinge portion 9, and the positioning cavity 7 is formed on the second hinge portion 9. The elastic ring 6 has an annular portion protruding towards the positioning cavity 7 and is accommodated in the positioning cavity 7. The outer peripheral wall of the elastic ring 6 is formed with a positioning protrusion 10, and the inner peripheral wall of the positioning cavity 7 is formed with a positioning groove 11. The positioning protrusion 10 and the positioning groove 11 cooperate to form a positioning structure that limits the rotation angle.

[0020] When the cleaning gun needs to be folded, the user holds the gun body 1 and handle 2, applying a torsional force. At this time, the positioning protrusion 10 compresses the elastic ring 6, causing a slight elastic deformation, which allows it to slide out of the current positioning groove 11 (e.g., unfolding positioning groove 11a). As rotation continues, the positioning protrusion 10 slides along the inner wall of the positioning cavity 7 until it falls into the target positioning groove 11 (e.g., folding positioning groove 11b). Under the restoring force of the elastic ring 6, the positioning protrusion 10 quickly engages with the groove, completing the locking process in one step without any tools. The unfolding process is the reverse, equally convenient.

[0021] Comparison Appendix Figure 3 In this embodiment, the gun body 1 includes a first gun body shell 1a and a second gun body shell 1b that are snapped together from left to right. The handle 2 includes a first handle shell 2a and a second handle shell 2b that are snapped together from left to right. The hinge shaft 5 is formed on the first handle shell 2a. The first gun body shell 1a and the second gun body shell 1b are rotatably connected to the hinge shaft 5, and the second handle shell 2b is fixedly connected to the hinge shaft 5. Further, the first hinge portion 8 is disposed on the first gun body shell 1a, and the second hinge portion 9 is disposed on the first handle shell 2a.

[0022] Preferably, the elastic ring 6 is made of metal, such as spring steel, to ensure that it has good elasticity and durability.

[0023] Comparison Appendix Figure 5In this embodiment, a fixing groove is provided on the first hinge portion 8, and a fixing block 12 that can be inserted into the fixing groove is formed on the side of the elastic ring 6 facing the first hinge portion 8. The fixing block 12 cooperates with the fixing groove to achieve circumferential fixation of the elastic ring 6.

[0024] Comparison Appendix Figure 6 and attached Figure 7 Preferably, the positioning protrusions 10 are arranged in pairs and are symmetrically distributed with respect to the axis center of the hinge shaft 5. The positioning grooves 11 are arranged in pairs accordingly and include a pair of unfolding positioning grooves 11a for locking the unfolded state and a pair of folding positioning grooves 11b for locking the folded state.

[0025] Furthermore, a pair of intermediate positioning grooves 11c are provided between the unfolding positioning groove 11a and the folding positioning groove 11b to provide intermediate angle locking; the setting position and included angle of the unfolding positioning groove 11a and the folding positioning groove 11b are determined according to the predetermined angle of unfolding and folding, and the intermediate positioning groove 11c is centrally located between the unfolding positioning groove 11a and the folding positioning groove 11b; the intermediate positioning groove 11c can provide an additional usage angle, and can also divide the large rotation stroke between the unfolding positioning groove 11a and the folding positioning groove 11b, providing a better rotation feel.

[0026] As a further preferred embodiment, the positioning protrusion 10 and the outer peripheral wall of the elastic ring 6 form a smooth arc transition, and the positioning groove 11 and the inner peripheral wall of the positioning cavity 7 form a smooth arc transition. This structure allows the user to easily switch from one groove to another by overcoming the slight deformation of the elastic ring 6 when rotating the gun body 1, accompanied by a clear "click" feedback, thus achieving fast and reliable positioning.

[0027] Comparison Appendix Figure 4 A start / stop switch 13 is provided on the side of the handle 2, and a wire hole 14 is provided inside the gun body 1. The wire hole 14 is located on the front side of the inner cavity of the gun body 1. The start / stop switch 13 is electrically connected to the controller 15 through a power cord and controls the start and stop of the motor 3. The power cord passes through the wire hole 14. The power supply of the folding cleaning gun can be a built-in power supply or an external power supply. This front-mounted wire hole 14 design ensures that when the gun body 1 is rotated and folded relative to the handle 2, the power cord has enough room to move and will not be excessively bent or squeezed, thus improving the reliability and lifespan of the product.

[0028] Furthermore, a display screen 16 is provided on one side of the gun body 1. The display screen 16 is electrically connected to the controller 15 and is used to display usage information of the cleaning gun. 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 (1) and a handle (2), wherein a water pump (4) driven by a motor (3) is disposed inside the gun body (1), and the gun body (1) and the handle (2) are hinged together by a hinge shaft (5), characterized in that, A hinged positioning structure is provided between the gun body (1) and the handle (2). The hinged positioning structure includes an elastic ring (6) and a positioning cavity (7). One of the gun body (1) and the handle (2) is provided with a first hinge part (8), and the elastic ring (6) is circumferentially fixedly assembled on the first hinge part (8). The other is provided with a second hinge part (9), and the positioning cavity (7) is formed on the second hinge part (9). The elastic ring (6) has an annular portion protruding towards the positioning cavity (7) and is accommodated in the positioning cavity (7). The outer peripheral wall of the elastic ring (6) is formed with a positioning protrusion (10), and the inner peripheral wall of the positioning cavity (7) is formed with a positioning groove (11). The positioning protrusion (10) and the positioning groove (11) cooperate to form a positioning structure that limits the rotation angle.

2. A folding cleaning gun according to claim 1, characterized in that, The first hinge part (8) is provided with a fixing groove. The elastic ring (6) is formed with a fixing block (12) that can be inserted into the fixing groove on the side facing the first hinge part (8). The fixing block (12) cooperates with the fixing groove to achieve circumferential fixation of the elastic ring (6).

3. A folding cleaning gun according to claim 1, characterized in that, The positioning protrusions (10) are arranged in pairs and are symmetrically distributed with respect to the axis center of the hinge shaft (5). The positioning grooves (11) are arranged in pairs accordingly and include a pair of unfolding positioning grooves (11a) for locking the unfolded state and a pair of folding positioning grooves (11b) for locking the folded state.

4. A folding cleaning gun according to claim 3, characterized in that, A pair of intermediate positioning slots (11c) for providing intermediate angle locking are also provided between the unfolding positioning slot (11a) and the folding positioning slot (11b).

5. A folding cleaning gun according to claim 1, characterized in that, The positioning protrusion (10) and the outer peripheral wall of the elastic ring (6) form a smooth arc transition, and the positioning groove (11) and the inner peripheral wall of the positioning cavity (7) form a smooth arc transition.

6. A folding cleaning gun according to claim 1, characterized in that, The gun body (1) includes a first gun body shell (1a) and a second gun body shell (1b) that are fastened together from left to right. The handle (2) includes a first handle shell (2a) and a second handle shell (2b) that are fastened together from left to right. The hinge shaft (5) is formed on the first handle shell (2a). The first gun body shell (1a) and the second gun body shell (1b) are rotatably connected to the hinge shaft (5). The second handle shell (2b) is fixedly connected to the hinge shaft (5).

7. A folding cleaning gun according to claim 6, characterized in that, The first hinge (8) is disposed on the first gun body housing (1a), and the second hinge (9) is disposed on the first handle housing (2a).

8. A folding cleaning gun according to claim 6, characterized in that, A start / stop switch (13) is provided on the side of the handle (2). A wire hole (14) is provided inside the gun body (1). The wire hole (14) is located on the front side of the inner cavity of the gun body (1). The start / stop switch (13) is electrically connected to the controller (15) through a power cord and controls the start and stop of the motor (3). The power cord passes through the wire hole (14).

9. A folding cleaning gun according to claim 1, characterized in that, A display screen (16) is provided on one side of the gun body (1), and the display screen (16) is electrically connected to the controller (15).

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