Vehicle spray washing gun easy to assemble

Abstract

The utility model discloses a vehicle spray washing gun easy to assemble, and relates to the technical field of vehicle washing water guns, the vehicle spray washing gun is used for spraying evenly mixed liquid on a vehicle to be washed so that the vehicle to be washed can be washed, the vehicle spray washing gun comprises a gun body, a liquid mixing pipe and a liquid storage bottle, an annular cover is arranged on the peripheral face of the liquid mixing pipe, and the liquid storage bottle is arranged on the gun body. At least one mounting part is arranged on the peripheral surface of the annular cover, at least one convex part is arranged on the peripheral surface of the top end of the liquid storage bottle, and the inner diameter of the top end of the liquid storage bottle is smaller than that of the annular cover, so that the at least one convex part and the at least one mounting part can be correspondingly inserted and connected in a matched manner by inserting the top end of the liquid storage bottle into the annular cover to rotate; the liquid storage bottle and the liquid mixing pipe can be assembled only by inserting the protruding part and the mounting part, the design structure is simple and exquisite, the number of assembling steps is small for a user, and the technical problem that in the prior art, an automotive spray washing gun is not easy to assemble is greatly solved.

Description

Technical Field

[0001] The utility model relates to the technical field of car washing water guns, in particular to a car spray washing gun which is easy to assemble. Background Art

[0002] The car wash water gun is used for vehicle cleaning. It uses the high-pressure plunger pump inside the water gun to generate high-pressure water for flushing. The impact force of the water is greater than the adhesion between the dirt and the surface of the object, thereby peeling off the dirt and flushing it away, achieving the goal of cleaning the surface of the object.

[0003] Publication number CN 207523669 U provides a water gun device for car washing, in which the foam tank is movably connected to the gun body through a threaded joint, that is, the foam tank and the gun body are threadedly connected. This arrangement is inconvenient for users to replace or assemble the foam tank. For the car washing water gun, the user holds the handle with one hand and rotates the foam tank with the other hand to replace the thread, which leads to inconvenience in operation, that is, the process of assembling the foam tank is not smooth enough and violates ergonomics. Moreover, during the time of replacing the foam tank with the thread, the foam tank is easily affected by the gravity of the foam tank and the hand is not flexible, which may cause the foam tank to fall off. Therefore, there is room for improvement. Utility Model Content

[0004] The purpose of the utility model is to overcome the above technical deficiencies, provide a vehicle spray gun that is easy to assemble, and solve the technical problem that vehicle spray guns in the prior art are difficult to assemble.

[0005] To achieve the above technical objectives, the present invention provides an easily assembled vehicle spray gun for spraying a uniformly mixed liquid onto a vehicle to be washed, so that the vehicle to be washed can be cleaned. The vehicle spray gun comprises:

[0006] A gun body, wherein a water pump is provided inside the gun body;

[0007] A mixing liquid pipe, wherein the mixing liquid pipe is provided with a water inlet, the water inlet is connected to the water outlet of the water pump, the outer circumference of the mixing liquid pipe is provided with an annular cover, and the outer circumference of the annular cover is provided with at least one mounting portion;

[0008] A liquid storage bottle, wherein the inner diameter of the top of the liquid storage bottle is smaller than the inner diameter of the annular cover, and the outer peripheral surface of the top of the liquid storage bottle is provided with at least one protrusion, and the at least one protrusion and the at least one mounting portion are adapted and plugged together by inserting the top of the liquid storage bottle into the interior of the annular cover and rotating;

[0009] The liquid storage bottle is further provided with a liquid guide tube connected to the interior of the mixing liquid tube. Under the negative pressure inside the mixing liquid tube, the liquid guide tube is used to flow the cleaning liquid contained in the liquid storage bottle back into the mixing liquid tube.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: an annular cover is provided on the outer circumferential surface of the mixing liquid tube, at least one mounting portion is provided on the outer circumferential surface of the annular cover, and at least one protrusion is provided on the outer circumferential surface of the top end of the liquid storage bottle. Since the inner diameter of the top end of the liquid storage bottle is smaller than the inner diameter of the annular cover, the at least one protrusion and the at least one mounting portion can be inserted into the annular cover by the top end of the liquid storage bottle and rotated to be adapted and plugged in accordingly. This arrangement can assemble the liquid storage bottle and the mixing liquid tube only by plugging the protrusion and the mounting portion. This design structure is simple and sophisticated, and for users, there are fewer assembly steps, and it is ergonomically designed, which greatly solves the technical problem of difficult assembly of vehicle spray washing guns in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0012] Figure 2 It is a structural diagram of the utility model;

[0013] Figure 3 It is an explosion diagram of the utility model;

[0014] Figure 4 yes Figure 3 A partial enlarged schematic diagram;

[0015] Figure 5 yes Figure 3 A partial enlarged schematic diagram of B in the middle;

[0016] Figure 6 It is a cross-sectional view of the liquid storage bottle in the utility model;

[0017] Figure 7 This is a schematic structural diagram of the liquid storage bottle in the utility model;

[0018] Figure 8 yes Figure 7 A partial enlarged view of center C;

[0019] Figure 9 It is a cross-sectional view of the annular cover in the present utility model;

[0020] Figure 10 It is a cross-sectional view of the annular cover in the present invention from another angle.

[0021] Description of reference numerals:

[0022] 1. Gun body; 11. Water pump; 12. Motor;

[0023] 2. Mixing pipe; 21. Annular cover; 211. Notch; 212. Limiting channel; 22. Annular limiting block; 23. Limiting platform; 231. First arc surface; 232. Sliding boss; 2321. Second arc surface; 2322. Third arc surface; 233. Fourth arc surface;

[0024] 3. Liquid storage bottle; 31. Bump; 32. Positioning block; 321. Fifth arc surface; 33. Liquid guide tube;

[0025] 4. Nozzle. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is 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 intended to limit the present invention.

[0027] In order to solve the technical problem that the car spray gun is difficult to assemble, the utility model provides a car spray gun that is easy to assemble. Please refer to Figures 1-10 The vehicle spray washing gun is used to spray a uniformly mixed mixed liquid onto the vehicle to be washed so that the vehicle to be washed can be cleaned. The vehicle spray washing gun includes a gun body 1, a mixing liquid tube 2, a liquid storage bottle 3 assembled with the mixing liquid tube 2, and other components that meet the structural operation, such as a battery. The outer circumference of the mixing tube 2 is provided with an annular cover 21, and the outer circumference of the annular cover 21 is provided with at least one mounting portion. The outer circumference of the top of the liquid storage bottle 3 is provided with at least one protrusion. Since the inner diameter of the top of the liquid storage bottle 3 is smaller than the inner diameter of the annular cover 21, the at least one protrusion and the at least one mounting portion can be inserted into the annular cover 21 by the top of the liquid storage bottle 3 and rotated to be adapted and plugged accordingly. This setting can assemble the liquid storage bottle 3 and the mixing tube 2 only by plugging the protrusion and the mounting portion. For the user, the assembly of the liquid storage bottle 3 and the mixing tube 2 is realized without multiple rotations, that is, the assembly steps are few, and the design is ergonomic, that is, it solves the discomfort problem of rotating the liquid storage bottle 3 for a long time with one hand. Therefore, the above design greatly solves the technical problem that the vehicle spray washing gun in the prior art is difficult to assemble.

[0028] It should also be noted that a liquid guide tube 33 connected to the interior of the mixing liquid tube 2 is installed inside the liquid storage bottle 3. Under the action of the negative pressure inside the mixing liquid tube 2, the liquid guide tube 33 is used to flow the cleaning liquid contained in the liquid storage bottle 3 back into the mixing liquid tube 2. Specifically, when the water pump 11 transports water from the water pipe to the mixing liquid tube 2, a negative pressure environment will be formed inside the mixing liquid tube 2, and then the cleaning liquid inside the liquid storage bottle 3 connected to the mixing liquid tube 2 will flow back to the mixing liquid tube 2 and be evenly mixed with the water in the mixing liquid tube 2.

[0029] The structure involved in the above technical solution is described in detail below.

[0030] In this embodiment, please refer to Figure 3-Figure 5 The mounting portion includes a notch 211 along the circumference of the annular cover 21, and the raised portion includes a protrusion 31 along the circumference of the outer surface of the top end of the liquid storage bottle 3. The user inserts the top end of the liquid storage bottle 3 into the annular cover 21 and rotates it to enable the protrusion 31 to be plugged into the corresponding notch 211. It should be noted that when the top end of the liquid storage bottle 3 rotates inside the annular cover 21, the number of rotations is less than one circle, and the protrusion 31 can be plugged into the corresponding notch 211. This operation is simple and time-saving.

[0031] Furthermore, in this embodiment, the number of mounting portions is two, and the number of protruding portions corresponding to the number of mounting portions is also two. Specifically, in other embodiments, the number of mounting portions may be three, four, etc.

[0032] In this embodiment, please refer to Figure 1 、 Figure 8 and Figure 9 In order to ensure that the protrusion 31 is more accurately plugged into the groove 211, that is, to reduce the assembly time of the liquid storage bottle 3 and the mixing tube 2, the inner wall of the annular cover 21 is provided with an annular limit block 22 coaxial with the annular cover 21, and the bottom surface of the annular limit block 22 and the top surface of the groove 211 are located in the same horizontal plane. The protrusion 31 on the top of the liquid storage bottle 3 can move under the bottom surface of the annular limit block 22 by rotating the liquid storage bottle 3. This arrangement can ensure the movement trajectory of the protrusion 31, thereby quickly plugging the protrusion 31 into the groove 211.

[0033] For details, please refer to Figures 8-10 The inner wall surface of the annular cover 21 is provided with a limit platform 23 corresponding to the number of the notches 211, and the top surface of the limit platform 23 and the bottom surface of the notch 211 are located in the same plane, wherein the top surface of the limit platform 23 and the bottom surface of the annular limit block 22 are arranged opposite to each other. In essence, the protrusion 31 is plugged into the notch 211, and the protrusion 31 passes between the top surface of the limit platform 23 and the bottom surface of the annular limit block 22 and then plugged into the socket, so that the bottom surface of the protrusion 31 abuts against the top surface of the limit platform 23 and the bottom surface of part of the notch 211, thereby stably fixing the position of the protrusion 31, that is, ensuring the stable assembly of the liquid storage bottle 3 and the mixing tube 2.

[0034] In this embodiment, a first arc surface 231 is provided on the side of the limit platform 23 facing the axis of the annular cover 21. The curvature of the first arc surface 231 is consistent with the curvature of the arc surface of the inner wall of the annular cover 21. This setting ensures that the top of the liquid storage bottle 3 can rotate inside the annular cover 21 according to a predetermined trajectory, and the rotation process is smooth.

[0035] In this embodiment, a sliding boss 232 is provided on one side of the limit platform 23, and the top surface of the sliding boss 232 is connected to or integrally formed with the bottom surface of the annular limit block 22. The side of the sliding boss 232 facing the axial direction of the annular cover 21 is a second arc surface 2321, and the second arc surface 2321 and the first arc surface 231 constitute a continuous arc surface. The above-mentioned arc surface setting enables the top end of the liquid storage bottle 3 to rotate smoothly inside the annular cover 21 to enhance the convenience of user group rotation. As for the side of the sliding boss 232 away from the slot 211, a third arc surface 2322 connected to the inner wall surface of the annular cover 21 is provided. The third arc surface 2322 is mainly provided to ensure that the protrusion 31 can enter the slot 211 along the third arc surface 2322 to ensure that the protrusion 31 is plugged into the slot 211.

[0036] Furthermore, a fourth arc surface 244 connected to the inner wall of the annular cover 21 is provided on the other side of the limit platform 23. The connection line between the fourth arc surface 244 and the inner wall of the annular cover 21 is located on the extension line of the side horizontal line between the side of the notch 211 and the inner wall of the annular cover 21. Through the setting of the fourth arc surface 244, a gap channel is formed between one side of the notch 211 and the inner wall of the annular cover 21. The gap channel can allow the protrusion 31 to disengage from the notch 211. That is, when the liquid storage bottle 3 needs to be replaced, the liquid storage bottle 3 is rotated, and one side of the protrusion 31 will move along the gap channel to the inside of the annular cover 21, thereby allowing the protrusion 31 to disengage from the notch 211, that is, the liquid storage bottle 3 is removed from the mixing tube 2 for replacement.

[0037] For further description on how to assemble and disassemble the liquid storage bottle 3 and the mixing tube 2, please refer to Figure 1 and Figures 8-10 When the cam 31 is in the closed position, the cam 31 is in the closed position, and the cam 31 is in the closed position, so that the cam 31 is in the closed position.

[0038] For details, please refer to Figure 4-Figure 9The bottom surface of the notch 211 is provided with a limiting channel 212 along the axial direction of the liquid storage bottle 3. In this embodiment, the limiting channel 212 extends from the bottom surface of the notch 211 to the top surface of the limiting platform 23, wherein the bottom surface of the protrusion 31 is provided with a positioning block 32 that is engaged with the limiting channel 212. Through the cooperation of the positioning block 32 and the limiting channel 212, the protrusion 31 can be more stably inserted into the notch 211, and the risk of the liquid storage bottle 3 falling off the annular cover 21 due to external force collision is reduced. The bottom surface of the positioning block 32 is provided with a fifth arc surface 321 that is adapted to be engaged with the inner surface of the limiting channel 212. The fifth arc surface 321 ensures that the positioning block 32 is engaged with the limiting channel 212 more smoothly, reduces friction resistance, and enhances the user experience.

[0039] In other embodiments, the protrusion 31 includes an elastic block, that is, one end of the protrusion 31 is arranged on the outer peripheral surface of the top end of the liquid storage bottle 3, and the other end is elastically abutted against the inner wall surface of the annular cover 21. By rotating the liquid storage bottle 3, the protrusion 31 is moved in contact with the inner wall surface of the annular cover 21, so that the protrusion 31 is plugged into the groove 211, that is, the protrusion 31 returns to its original length.

[0040] In this embodiment, please refer to Figure 1 and Figure 2 The annular cover 21 is located in the vertical direction of the outer circumference of the mixing liquid tube 2. Specifically, the annular cover 21 is located on the bottom surface of the outer circumference of the mixing liquid tube 2. A one-way valve (not shown) is provided between the liquid storage bottle 3 and the mixing liquid tube 2. The one-way valve further ensures that the water coming out of the water pump 11 will not enter the liquid storage bottle 3.

[0041] Of course, the annular cover 21 can also be arranged on the side surface of the outer peripheral surface of the mixing tube 2, as long as the liquid storage bottle 3 assembled with the annular cover 21 can be guaranteed to work normally.

[0042] In other embodiments, there is an angle between the axial line of the annular cover 21 and the axial line of the mixing liquid tube 2, and the bottom end of the annular cover 21 is close to the water outlet, that is, the annular cover 21 is arranged to be inclined to the mixing liquid tube 2. This design also further avoids the situation where water in the mixing liquid tube 2 occasionally enters the liquid storage bottle 3.

[0043] In this embodiment, please refer to Figure 1 A nozzle 4 is provided at one end of the mixing tube 2 away from the water outlet, and the horizontal distance between the axis of the liquid storage bottle 3 and the water outlet is smaller than the horizontal distance between the axis of the liquid storage bottle 3 and the nozzle 4. The above design ensures that the cleaning liquid in the liquid storage bottle 3 can be fully mixed with the water in the mixing tube 2 to facilitate cleaning the vehicle to be washed.

[0044] To ensure the normal operation of the spray gun, a motor 12 is provided inside the gun body 1 to drive the water pump 11. The water pump 11 is used to transport water in the water pipe to the mixing pipe 2 through the water outlet to ensure the water pressure inside the mixing pipe 2.

[0045] The above specific embodiments of the present invention do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. An easy-to-assemble vehicle spray gun for spraying a uniformly mixed liquid onto a vehicle to be washed, so that the vehicle to be washed can be cleaned, characterized in that: The vehicle spray gun comprises: A gun body, wherein a water pump is provided inside the gun body; A mixing liquid pipe, wherein the mixing liquid pipe is provided with a water inlet, the water inlet is connected to the water outlet of the water pump, the outer circumference of the mixing liquid pipe is provided with an annular cover, and the outer circumference of the annular cover is provided with at least one mounting portion; A liquid storage bottle, wherein the inner diameter of the top of the liquid storage bottle is smaller than the inner diameter of the annular cover, and the outer peripheral surface of the top of the liquid storage bottle is provided with at least one protrusion, and the at least one protrusion and the at least one mounting portion are adapted and plugged together by inserting the top of the liquid storage bottle into the interior of the annular cover and rotating; Wherein, a liquid guide tube connected to the interior of the mixing liquid tube is installed inside the liquid storage bottle. Under the action of negative pressure inside the mixing liquid tube, the liquid guide tube is used to flow the cleaning liquid contained in the liquid storage bottle back into the mixing liquid tube.

2. The easy-to-assemble vehicle spray gun according to claim 1, characterized in that: The mounting portion includes a notch along the circumference of the annular cover, and an annular stopper coaxial with the annular cover is provided on the inner wall of the annular cover, and the bottom surface of the annular stopper and the top surface of the notch are located in the same horizontal plane; The raised portion includes a convex block along the circumference direction of the outer surface of the top end of the liquid storage bottle, and the convex block can move below the bottom surface of the annular limiting block by rotating the liquid storage bottle.

3. The easy-to-assemble vehicle spray gun according to claim 2, characterized in that: The inner wall surface of the annular cover is provided with a limit platform corresponding to the number of the notches, the top surface of the limit platform and the bottom surface of the notch are located in the same plane, and the side of the limit platform facing the axis of the annular cover is provided with a first arc surface, and the curvature of the first arc surface is consistent with the curvature of the arc surface of the inner wall surface of the annular cover; A sliding boss is provided on one side of the limit platform, the top surface of the sliding boss is connected to or integrally formed with the bottom surface of the annular limit block, the side of the sliding boss facing the axial direction of the annular cover is a second arc surface, the second arc surface and the first arc surface form a continuous arc surface, and the side of the sliding boss away from the groove is provided with a third arc surface connected to the inner wall surface of the annular cover.

4. The easy-to-assemble vehicle spray gun according to claim 3, characterized in that: A fourth arc surface connected to the inner wall of the annular cover is provided on the other side of the limit platform, and the connecting line between the fourth arc surface and the inner wall of the annular cover is located on the extension line of the side horizontal line between the side of the notch and the inner wall of the annular cover.

5. The easy-to-assemble vehicle spray gun according to claim 4, characterized in that: A limiting channel is provided on the bottom surface of the notch along the axis direction of the liquid storage bottle, and a positioning block is provided on the bottom surface of the protrusion to be engaged with the limiting channel.

6. The easy-to-assemble vehicle spray gun according to claim 5, characterized in that: The bottom end surface of the positioning block is provided with a fifth arc surface adapted to be engaged with the inner surface of the limiting channel.

7. The easy-to-assemble vehicle spray gun according to claim 2, characterized in that: The protrusion includes an elastic block.

8. The easy-to-assemble vehicle spray gun according to claim 6, characterized in that: The annular cover is located in a vertical direction of the outer peripheral surface of the mixing liquid tube.

9. The easy-to-assemble vehicle spray gun according to claim 8, characterized in that: A one-way valve is provided between the liquid storage bottle and the mixing liquid tube.

10. The easy-to-assemble vehicle spray gun according to claim 6, characterized in that: An angle is formed between the axial line of the annular cover and the axial line of the liquid mixing pipe, and the bottom end of the annular cover is close to the water outlet.

11. The easy-to-assemble vehicle spray gun according to claim 1, characterized in that: A nozzle is provided at one end of the mixing pipe away from the water outlet, and a horizontal distance between the axis of the liquid storage bottle and the water outlet is smaller than a horizontal distance between the axis of the liquid storage bottle and the nozzle.

12. An easily assembled vehicle spray gun according to any one of claims 1 to 11, characterized in that: A motor for driving the water pump is also provided inside the gun body, wherein the water pump is used to transport the water in the water pipe to the inside of the mixing pipe through the water outlet.

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