CN109398325B

CN109398325B - Spray gun and steam car washer with same

Info

Publication number: CN109398325B
Application number: CN201811543476.4A
Authority: CN
Inventors: 黄家峰; 周永志; 王焕焱; 文辉; 沈显东; 张天翼
Original assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Gree Intelligent Equipment Co Ltd
Current assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Gree Intelligent Equipment Co Ltd
Priority date: 2018-12-17
Filing date: 2018-12-17
Publication date: 2024-03-08
Anticipated expiration: 2038-12-17
Also published as: CN109398325A

Abstract

The invention provides a spray gun and a steam car washer with the spray gun, wherein the spray gun comprises: a spray gun housing; the handle is arranged on the spray gun shell and used for controlling the on-off of fluid of the spray gun by pulling the handle; the handle comprises a mounting part, a connecting part and a handheld part, one end of the connecting part is connected with the mounting part, the other end of the connecting part is connected with the handheld part, the handle is connected with the spray gun shell through the mounting part, and the mounting part, the connecting part and the handheld part are integrally formed. The spray gun solves the problem that the pressure stability is difficult to realize when water flow is ejected due to poor flexibility of a handle structure in the prior art.

Description

Spray gun and steam car washer with same

Technical Field

The invention relates to the technical field of car washes, in particular to a spray gun and a steam car washer with the spray gun.

Background

Along with the continuous development of science and technology, the market of steam car washes is accumulated year by year, but the pressure stabilizing handle structure of the spray gun of the mature steam car washer is less. Thus, in the process of washing the automobile by using the steam car washer, the problems of insufficient air pressure, poor continuity of steam injection of the spray gun nozzle structure and the like often occur. Among the important factors are:

firstly, a spray gun control valve switch of the car washer is a linkage device formed by multiple parts, and when water flow is ejected due to poor handle flexibility, pressure stability is difficult to realize;

second, the nozzle is in a high temperature state for a long time to achieve continuous steam injection is complicated.

Disclosure of Invention

The invention mainly aims to provide a spray gun and a steam car washer with the spray gun, so as to solve the problem that the pressure stability is difficult to realize when water flow is ejected due to poor flexibility of a handle structure in the prior art.

In order to achieve the above object, according to one aspect of the present invention, there is provided a spray gun comprising: a spray gun housing; the handle is arranged on the spray gun shell and used for controlling the on-off of fluid of the spray gun by pulling the handle; the handle comprises a mounting part, a connecting part and a handheld part, one end of the connecting part is connected with the mounting part, the other end of the connecting part is connected with the handheld part, the handle is connected with the spray gun shell through the mounting part, and the mounting part, the connecting part and the handheld part are integrally formed.

Further, the spray gun further comprises: the locking switch is arranged on the spray gun shell in a position adjustable mode, is located on one side of the handle and is in limit fit with the handle, so that when the spray gun is in a working state, the locking switch moves towards the handle, and the handle and the locking switch are locked.

Further, a concave part is arranged on the connecting part, the concave part is provided with a first opening and a second opening, the concave part is concave from the first opening along the direction away from the locking switch, and the concave part is concave from the second opening along the direction towards the mounting part; the locking switch is provided with a stop part, and the stop part is matched with the concave part so as to be clamped in the concave part when at least part of the stop part slides into the concave part through the first opening and the second opening.

Further, the stop part comprises a stop main body and a protruding part, wherein the protruding part is arranged on the end face, close to the concave part, of the stop main body, and a stop step is formed between the protruding part and the stop main body, so that when the protruding part slides into the concave part, the handle is limited through the stop step.

Further, be provided with the installed part on the connecting portion of handle, the installed part is located the one side that connecting portion is close to spray gun shell upper end, and the spray gun still includes: and one end of the elastic piece is connected with the mounting piece, and the other end of the elastic piece is abutted against the upper end of the spray gun shell.

Further, the mounting piece is of a columnar structure, the elastic piece is provided with a first connecting hole, and the elastic piece is sleeved on the columnar structure through the first connecting hole.

Further, the connecting portion is provided with a second connecting hole, and the mounting piece is mounted on the connecting portion through the second connecting hole.

Further, the mounting portion has a mounting hole, and the spray gun housing is provided with a support assembly that matches the mounting hole, and the mounting portion is connected with the support assembly through the mounting hole, and the handle is swingably provided around the support assembly.

Further, the handle is made of PA66 material.

According to another aspect of the invention, a steam car washer is provided, which comprises a spray gun, wherein the spray gun is the spray gun.

According to the spray gun, the handle is arranged on the spray gun shell, so that the on-off of fluid of the spray gun can be controlled in the process of pulling the handle; the handle of the spray gun comprises the mounting part, the connecting part and the handheld part, and the mounting part, the connecting part and the handheld part are designed into an integrated structure, namely the handle is of an integrated structure, so that the problem of unstable pressure when water flow is ejected due to poor flexibility of long-time operation at the handle can be solved, and the constant pressure of the water flow ejected by the spray gun nozzle is realized; and this handle simple structure, easy operation has solved the handle and has operated the problem that use comfort is not good for a long time, has improved user experience.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:

FIG. 1 shows a schematic structural view of an embodiment of a spray gun according to the present invention;

FIG. 2 shows a schematic view of the structure of an angle of the handle of the spray gun according to the invention;

FIG. 3 shows a schematic view of another angle of the handle of the spray gun according to the invention;

FIG. 4 shows a side view of the handle of FIG. 3;

FIG. 5 shows a cross-sectional view at section A-A of the handle of FIG. 3;

fig. 6 shows a cross-sectional view at section B-B of the handle in fig. 3.

Wherein the above figures include the following reference numerals:

10. a spray gun housing; 20. a handle; 21. a mounting part; 211. a mounting hole; 2111. a first bore section; 2112. a second bore section; 212. a third connection hole; 22. a connection part; 221. a recessed portion; 222. a second connection hole; 23. a hand-held part; 24. a mounting member; 40. a locking switch; 41. a stop portion; 411. a stopper body; 412. a protruding portion; 50. an elastic member; 60. a noise reduction device; 70. a nozzle structure; 80. a water inlet pipeline; 90. a conversion joint; 100. and a water inlet.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.

It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The present invention provides a spray gun, please refer to fig. 1 to 6, comprising: a spray gun housing 10; a handle 20, the handle 20 is arranged on the spray gun shell 10, so that the on-off of the fluid of the spray gun can be controlled by pulling the handle 20; the handle 20 includes a mounting portion 21, a connecting portion 22 and a holding portion 23, one end of the connecting portion 22 is connected with the mounting portion 21, the other end of the connecting portion 22 is connected with the holding portion 23, the handle 20 is connected with the spray gun housing 10 through the mounting portion 21, and the mounting portion 21, the connecting portion 22 and the holding portion 23 are integrally formed.

The spray gun of the invention can control the on-off of the fluid of the spray gun in the process of pulling the handle 20 by arranging the handle 20 on the spray gun shell 10; the handle 20 of the spray gun comprises the mounting part 21, the connecting part 22 and the handheld part 23, and the mounting part 21, the connecting part 22 and the handheld part 23 are designed into an integrated structure, namely the handle 20 is of an integrated structure, so that the problem of unstable pressure when water flow is ejected due to poor flexibility of long-time operation at the handle can be solved, and the constant pressure of the water flow ejected by the spray gun nozzle is realized; and this handle 20 simple structure, easy operation has solved the handle and has operated the problem that uses the comfort level is not good for a long time, has improved user experience.

In this embodiment, the spray gun further comprises a locking switch 40, the locking switch 40 is adjustably mounted on the spray gun housing 10, the locking switch 40 is located on one side of the handle 20 and is in limit fit with the handle 20, so that when the spray gun is in an operating state, the locking switch 40 moves towards the handle 20 to lock the handle 20 with the locking switch 40. Such an arrangement avoids fatigue effects from long-term operator pressure and thus instabilities in the pressure of the steam being ejected from the nozzle.

In particular, the connecting portion 22 is provided with a recess 221, the recess 221 has a first opening and a second opening, the recess 221 is recessed from the first opening in a direction away from the locking switch 40, and the recess 221 is recessed from the second opening in a direction toward the mounting portion 21; the locking switch 40 has a stopper 41, and the stopper 41 is matched with the recess 221, so that the stopper 41 is clamped in the recess 221 when at least part of the stopper 41 slides into the recess 221 through the first opening and the second opening.

In particular, the stop portion 41 includes a stop main body 411 and a protrusion portion 412, the protrusion portion 412 is disposed on an end surface of the stop main body 411 near the recess 221, and a stop step is formed between the protrusion portion 412 and the stop main body 411, so that when the protrusion portion 412 slides into the recess 221, the handle 20 is limited by the stop step.

In particular, the connecting portion 22 includes a connecting portion body and a connecting protrusion portion provided on the connecting portion body, the connecting protrusion portion being located on an upper side of the connecting portion body, and the recess portion 221 being provided on the connecting protrusion portion. Such an arrangement facilitates a positive fit with the locking switch 40.

In this embodiment, the connecting portion 22 of the handle 20 is provided with a mounting member 24, the mounting member 24 is located on one side of the connecting portion 22 near the upper end of the spray gun housing 10, the spray gun further includes an elastic member 50, one end of the elastic member 50 is connected with the mounting member 24, and the other end of the elastic member 50 abuts against the upper end of the spray gun housing 10. This arrangement enables the handle 20 to be opened and closed.

Preferably, the elastic member 50 is a spring.

In particular, the mounting member 24 has a columnar structure, the elastic member 50 has a first connecting hole, and the elastic member 50 is sleeved on the columnar structure through the first connecting hole.

In particular, the connecting portion 22 has a second connecting hole 222, and the mounting member 24 is mounted on the connecting portion 22 through the second connecting hole 222.

In the present embodiment, the mounting portion 21 has a mounting hole 211, a support member fitted to the mounting hole 211 is provided on the lance housing 10, the mounting portion 21 is connected to the support member through the mounting hole 211, and the handle 20 is swingably provided around the support member.

In specific implementation, the mounting hole 211 comprises a first hole section 2111 and a second hole section 2112, the support assembly comprises a first support part and a second support part, the first support part and the second support part are both arranged on the inner side of the spray gun shell 10, the first support part is matched with the first hole section 2111, the first support part is inserted into the first hole section 2111, the second support part is matched with the second hole section 2112, and the second support part is inserted into the second hole section 2112; wherein the diameter of the first hole section 2111 is not equal to the diameter of the second hole section 2112. Such an arrangement achieves both swingable movement of the handle 20 and stable installation of the handle 20.

In particular, the mounting portion 21 has a third connecting hole 212, and the noise reduction device 60 includes an opening and closing portion, at least part of which is matched with the third connecting hole 212, and at least part of which is inserted into the third connecting hole 212, so that when the handle 20 is pressed, the opening and closing portion is in an open state or a closed state, so that the spray gun is in a working state and a non-working state correspondingly.

In this embodiment, the handle 20 is made of PA66 material. Wherein, PA66 is commonly called nylon-66, and is a thermoplastic resin. The problem that the long-time high-temperature nozzle cannot generate steam is solved by arranging the material.

The spray gun has the beneficial effects that: after the linkage device formed by the spray gun handle and the connecting rod of the car washer is changed into an integrated design, the structure is simple, the operation is easy, the problem of poor comfort level of long-time operation at the handle is solved, and the constant pressure of water flow sprayed by the spray gun nozzle is realized. The structure and the material of the handle part are improved, and the problem that the long-time high-temperature nozzle cannot generate steam is solved.

In the installation of the spray gun of the present invention, the spray gun housing 10 is first fixed in place and assembled with this as the installation reference. After the spray gun shell 10 is fixed, the noise reduction device 60 of the spray gun is installed completely, the left end of the noise reduction device 60 is connected with the nozzle structure 70, the lower end of the noise reduction device is connected with the water inlet pipeline 80, the other end of the water inlet pipeline 80 is connected with the adapter 90, and the other end of the adapter 90 is a water inlet 100 of the spray gun. Then, the handle 20 of the spray gun is installed, after the handle 20 is fixed, the mounting member 24 and the elastic member 50 are installed at the second connection hole 222, and finally, the locking switch 40 of the spray gun is installed. All of the lance structure is positioned with reference to the position of the lance housing 10.

The invention also provides a steam car washer, which comprises a spray gun, wherein the spray gun is the spray gun in the embodiment.

The specific implementation mode of the steam car washer is as follows:

when the steam car washer cleans the car, firstly, the spray gun handle 20 is pressed down, the noise reduction device 60 is communicated with the lower water inlet pipeline 80, steam enters the nozzle structure 70 from the water inlet 100 at the bottom of the spray gun through the water inlet pipeline 80 and the noise reduction device 60, and the steam is ejected from the nozzle to achieve the aim of cleaning the car.

The locking switch 40 can lock, so that the fatigue effect generated by long-time pressing of an operator is avoided, and the unstable air pressure of steam sprayed from the nozzle is further avoided.

Meanwhile, the handle linkage device is changed, so that the handle and the spray gun valve are accurately controlled. The handle of the steam car washer on the market in the past is two parts coordinated control valve thimble and accomplishes the function of spraying steam, and the shortcoming of this structure is that two parts can have the phenomenon emergence of the skew former motion track of certain degree in the transmission in-process, and because the part is plastic products, handle 20 goes out to press and can not go out steam after long-time high temperature, therefore the structure is complicated, and the functionality is relatively poor.

The handle of the present invention addresses this problem by providing a structural improvement, as shown in fig. 1 and 2. Changing the linkage into an integral handle 20, changing the material of the parts into PA66 material can solve the problems of poor comfort and no steam generation in the handle for long-time operation. Under the condition of meeting the metal processing technology, the optimized structure of the spray gun handle is obtained, and the reliability of the optimized structure is verified through experiments.

From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be capable of being practiced otherwise than as specifically illustrated and described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A spray gun, comprising:

a spray gun housing (10);

a handle (20), wherein the handle (20) is arranged on the spray gun shell (10) so as to control the on-off of the fluid of the spray gun by pulling the handle (20);

the handle (20) comprises an installation part (21), a connecting part (22) and a handheld part (23), one end of the connecting part (22) is connected with the installation part (21), the other end of the connecting part (22) is connected with the handheld part (23), the handle (20) is connected with the spray gun shell (10) through the installation part (21), and the installation part (21), the connecting part (22) and the handheld part (23) are integrally formed;

a locking switch (40), the locking switch (40) being adjustably mounted on the spray gun housing (10), the locking switch (40) being located on one side of the handle (20) and in positive engagement with the handle (20) such that when the spray gun is in an operational state, the locking switch (40) moves towards the handle (20) to lock the handle (20) with the locking switch (40);

wherein, a concave part (221) is arranged on the connecting part (22), the concave part (221) is provided with a first opening and a second opening, the concave part (221) is concave from the first opening along the direction far away from the locking switch (40), and the concave part (221) is concave from the second opening along the direction towards the mounting part (21); the locking switch (40) is provided with a stop part (41), and the stop part (41) is matched with the concave part (221) so as to ensure that the stop part (41) is clamped in the concave part (221) when at least part of the stop part (41) slides into the concave part (221) through the first opening and the second opening;

the stop part (41) comprises a stop main body (411) and a protruding part (412), the protruding part (412) is arranged on the end face, close to the concave part (221), of the stop main body (411), a stop step is formed between the protruding part (412) and the stop main body (411), and when the protruding part (412) slides into the concave part (221), the handle (20) is limited through the stop step.

2. The spray gun of claim 1, wherein said connecting portion (22) of said handle (20) is provided with a mounting member (24), said mounting member (24) being located on a side of said connecting portion (22) near an upper end of said spray gun housing (10), said spray gun further comprising:

and one end of the elastic piece (50) is connected with the mounting piece (24), and the other end of the elastic piece (50) is abutted against the upper end of the spray gun shell (10).

3. The spray gun according to claim 2, wherein the mounting member (24) has a columnar structure, the elastic member (50) has a first connecting hole, and the elastic member (50) is sleeved on the columnar structure through the first connecting hole.

4. The spray gun according to claim 2, characterized in that the connecting portion (22) has a second connecting hole (222) thereon, and the mounting member (24) is mounted on the connecting portion (22) through the second connecting hole (222).

5. The spray gun according to claim 1, characterized in that the mounting part (21) has a mounting hole (211), a support assembly adapted to the mounting hole (211) is provided on the spray gun housing (10), the mounting part (21) is connected with the support assembly through the mounting hole (211), and the handle (20) is swingably provided around the support assembly.

6. The spray gun of claim 1, wherein said handle (20) is made of PA66 material.

7. A steam car washer comprising a lance, wherein the lance is as claimed in any one of claims 1 to 6.