CN212883165U

CN212883165U - Cleaning accessory

Info

Publication number: CN212883165U
Application number: CN202021267835.0U
Authority: CN
Inventors: 孙益民; 张士松; 托德·齐默尔曼; 葛安; 顾金发
Original assignee: Positec Power Tools Suzhou Co Ltd
Current assignee: Positec Power Tools Suzhou Co Ltd
Priority date: 2020-07-02
Filing date: 2020-07-02
Publication date: 2021-04-06
Anticipated expiration: 2030-07-02

Abstract

The utility model relates to a cleaning accessory, which is used for connecting a spray gun and a pipe body and comprises a first matching part and a second matching part; the first matching part is detachably connected with the spray gun and is provided with an outlet communicated with a liquid inlet pipe of the spray gun; the second joins in marriage the portion of connecing and is used for detachably and body coupling, be provided with the entry with the body intercommunication on it, be formed with the passageway that makes liquid in the body get into the spray gun between entry and the export, when cleaning annex is connected spray gun and body, water in the body gets into in the spray gun through cleaning annex, realize the inside washing of spray gun working head, need not to dismantle the spray gun working head, and convenient operation, save time, it is clean and maintenance efficiency high, this cleaning annex simple structure, user's maneuverability has been improved, user experience has been improved.

Description

Cleaning accessory

Technical Field

The utility model relates to a cleaning accessory.

Background

The spray gun obtains a coating layer on the surface of a workpiece to be coated through atomization treatment of the coating stored in the spray pot. The user can load different coatings in the spray can as required, and in order not to influence the use effect, the user cleans and maintains the parts with the coatings, such as the spray can, a spray painting pipeline and the like after each use, and particularly cleans a working head of the spray gun for spraying the atomized coatings so as to avoid influencing the next use. The existing cleaning method generally comprises the steps of adding water or cleaning fluid into a spray can, starting a spray gun, and cleaning the water or the cleaning fluid through a spray painting pipeline, but the method is easy to atomize the cleaning fluid, so that air pollution is caused, and in addition, each part attached with paint can be directly disassembled into parts and then cleaned independently, but the method is complex in operation, labor-consuming and labor-consuming, and low in cleaning efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a simple structure, clean efficient clean annex.

In order to achieve the above purpose, the utility model provides a following technical scheme: a cleaning accessory for connecting a spray gun and a pipe body, the cleaning accessory comprising a first mating portion and a second mating portion; the first matching and connecting part is detachably connected with the spray gun and is provided with an outlet communicated with a liquid inlet pipe of the spray gun; the second matching and connecting part is detachably connected with the pipe body, an inlet communicated with the pipe body is formed in the second matching and connecting part, and a channel enabling liquid in the pipe body to enter the spray gun is formed between the inlet and the outlet.

Further, the spray gun comprises a liquid inlet matching part used for being connected with the storage tank, and the first matching part is in threaded connection with the liquid inlet matching part.

Further, the first mating portion includes a connecting tube having a first end and a second end, the first end being in communication with the outlet; the second end is used for being inserted into the liquid inlet pipe.

Further, the second fitting part is in threaded connection with the pipe body.

Furthermore, the second matching part can move relative to the first matching part.

Furthermore, the cleaning accessory further comprises a connecting piece, the connecting piece is fixedly connected with the first matching and connecting part, a concave ring is formed by the connecting piece and the first matching and connecting part in a surrounding mode, the second matching and connecting part is provided with a bulge matched with the concave ring, and the second matching and connecting part can rotate relative to the connecting piece.

Further, the inner diameter of the connecting pipe ranges from 6 mm to 12 mm; the inner diameter of the second matching part ranges from 15 mm to 25 mm.

Further, the inner diameter of the connecting pipe ranges from 8 mm to 10 mm; the inner diameter of the second matching part ranges from 16 mm to 20 mm.

Further, the ratio of the outer diameter of the first matching part to the inner diameter of the connecting pipe ranges from 7 to 13, and the ratio of the inner diameter of the second matching part to the inner diameter of the connecting pipe ranges from 1.25 to 3.

Further, the outer diameter of the first matching part ranges from 60 mm to 130 mm.

The beneficial effects of the utility model reside in that: the utility model provides a be formed with the passageway that makes the liquid in the body get into the spray gun between the entry on the clean annex and the export, when clean annex is connected spray gun and body, in the water in the body gets into the spray gun through clean annex, realize the washing to the inside of spray gun working head, need not to dismantle the spray gun working head, convenient operation, save time, clean and maintenance efficiency are high, this clean annex simple structure has improved user's maneuverability, has improved user experience.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and the accompanying drawings.

Drawings

FIG. 1 is a schematic view of a spray gun connected to a faucet having a body using a cleaning attachment according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of the lance of FIG. 1;

FIG. 3 is a schematic view of the cleaning attachment of FIG. 1;

FIG. 4 is an exploded view of the cleaning attachment of FIG. 1;

FIG. 5 is a schematic cross-sectional view of the cleaning attachment of FIG. 1;

figure 6 is a schematic view of the spray gun and cleaning attachment of figure 1.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the mechanism or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Referring to fig. 1 and 2, the present invention relates to a cleaning accessory 1 for connecting a spray gun 2 and a pipe body 3, wherein one end of the pipe body 3 can be connected to a faucet 4, so that a water source entering the pipe body 3 enters the spray gun 2 through the cleaning accessory 1 to complete cleaning of the spray gun 2. The cleaning attachment 1 is not limited to the spray gun 2, but can be applied to an atomizer, a sprinkler, a watering can, and the like, and the spray gun 2 is taken as an example for detailed description. The pipe body 3 may be connected to a device capable of outputting a water source having a pressure, in addition to the water tap 4, and is not particularly limited herein.

The spray gun 2 includes a working head 21, a storage tank 22 located below the working head 21, a power assembly (not shown) located at one side of the working head 21, and a handle 23 located below the power assembly. The working head 21 includes a housing 211, a nozzle 212 provided in the housing 211, a spray bar 213 housed in the housing 211, and the like. The housing 211 includes a sleeve portion 2111 extending horizontally and a liquid inlet 2112 extending downward from the sleeve portion 2111, the liquid inlet 2112 is connected to the storage tank 22, the nozzle 212 is disposed at one end of the sleeve portion 2111 away from the power assembly, and the spray bar 213 is disposed in the sleeve portion 2111. The liquid inlet matching part 2112 is hollow, and a liquid inlet pipe 214 for sending the liquid in the storage tank 22 into the working head 21 is arranged in the liquid inlet matching part; the liquid inlet pipe 214 is a hollow cylinder structure, and the specific material and size of the liquid inlet pipe 214 are not specifically limited herein and can be selectively set according to actual needs. Indeed, in other embodiments, the liquid inlet pipe may also communicate with an externally disposed liquid storage device and deliver liquid into the working head.

The inlet coupling portion 2112 is integrally formed with a third coupling portion 2113 at an end remote from the sleeve portion 2111, the third coupling portion 2113 being adapted to be coupled to the reservoir tank 22 or the cleaning attachment 1. The third mating portion 2113 is a cylindrical structure, and the inner surface of the third mating portion 2113 is provided with a third threaded portion 2114 for implementing threaded connection, where the threaded structure of the third threaded portion 2114 is an existing structure, and details are not described herein.

Indeed, in other embodiments, the third threaded portion may be disposed on an outer surface of the third mating portion, and the third mating portion may also be a structure for fixed connection in other forms, such as a structure for snap connection, a magnetic attraction structure, and the like, which are not listed here.

Referring to fig. 3 to 5, the cleaning attachment 1 includes a first fitting portion 11 and a second fitting portion 12. The first matching part 11 is used for being detachably connected with the spray gun 2, and specifically, the first matching part 11 is in threaded connection with the liquid inlet matching part 2112; the second fitting portion 12 is adapted to be detachably connected to the pipe body 3, thereby connecting the cleaning attachment 1 to the pipe body 3. The first matching part 11 is provided with an outlet 110 communicated with a liquid inlet pipe 214 of the spray gun 2; the second fitting portion 12 is provided with an inlet 120 communicating with the tube 3, a passage 13 for allowing the liquid in the tube 3 to enter the spray gun 2 is formed between the inlet 120 and the outlet 110, and the second fitting portion 12 is movable relative to the first fitting portion 11.

The first mating portion 11 includes a first housing 111 that is mated with the third mating portion 2113, and an extension portion 112 connected to the first housing 111, where the first housing 111 has a circular ring structure, a diameter of one end of the first housing 111 is larger than a diameter of the other end, and the extension portion 112 is connected to an end of the first housing 111 having a smaller diameter.

The first housing 111 is screwed with the third mating portion 2113, specifically, the first housing 111 is formed with a first threaded portion 113 on an outer surface of one end having a larger diameter, which is screwed with the third threaded portion 2114, and a threaded structure of the first threaded portion 113 is an existing structure, which is not described in detail herein.

Indeed, in other embodiments, the first threaded portion may also be formed on the inner surface of the first housing, or the first housing is provided with another structure for connection, and the connection between the first housing and the third mating portion is not limited to threaded connection, but may also be a snap connection, a socket connection, or the like, and is not limited specifically herein.

The extension 112 has a cavity forming the channel 13, a part of the inner wall of the extension 112 is of a stepped surface structure, and the outer surface of the extension 112 at one end far away from the first housing 111 is protruded outwards to form a bending part 114.

The first fitting part 11 is provided inside with a protrusion 115 for forming part of the channel 13, and the diameter of the outer surface of the end of the protrusion 115 away from the extension 112 is smaller than the diameter of the outer surface of the end close to the extension 112, which is advantageous for other components to be sleeved on the protrusion 115.

The first mating portion 11 further comprises a connecting tube 116, the connecting tube 116 having a first end 1161 and a second end 1162, wherein the first end 1161 is in communication with the outlet 110, in particular, the first end 1161 is in mating connection with the protruding portion 115, and the connecting tube 116 is in communication with the passage 13. The second end 1162 is inserted into the liquid inlet pipe 214 when the first and

third mating portions

11 and 2113 are mated. The second end 1162 of the connection pipe 116 protrudes out of the upper end surface of the first housing 111.

The first housing 111, the extension 112, the protrusion 115, the connection pipe 116, etc. in the first fitting part 11 may be integrally formed to reduce the size of the first fitting part 11, but are not particularly limited thereto, and some parts may be fixedly connected.

The cleaning attachment 1 further comprises a connecting member 14, the connecting member 14 is used for limiting the second matching part 12 to move in the axial direction relative to the first matching part 11, and the connecting member 14 is fixedly connected with the first matching part 11. The second mating portion 12 is movably connected to the connecting member 14. In this embodiment, the second coupling portion 12 is rotatable with respect to the connecting member 14.

In this embodiment, the connecting member 14 is a hollow structure, and one end of the connecting member 14 extends into the extending portion 112 and is fixed with the extending portion 112. Specifically, the cross-sections of the two end surfaces of the connecting member 14 are different in size, and the end with the smaller cross-section extends into the extension portion 112 and is hermetically connected with the extension portion 112.

In this embodiment, the outer surface of the connecting member is formed with a step surface that is engaged with the step surface in the extending portion, and indeed, in other embodiments, the connecting manner and structure of the connecting member and the extending portion are not limited thereto, and may be other connecting manners and structures, and are not specifically limited thereto.

In order to connect the second coupling portion 12 with the first coupling portion 11, the connector 14 and the first coupling portion 11 are surrounded by a recessed ring 141, and the second coupling portion 12 has a protrusion 121 that is engaged with the recessed ring 141. In this embodiment, when the connecting element 14 extends into the extending portion 112 and is fixedly connected with the extending portion 112, a concave ring 141 is formed between one of the step surfaces of the outer surface of the connecting element 14 and the bending portion 114 of the extending portion 112, and the second mating portion 12 is protruded outwards to form a protrusion 121, and the protrusion 121 is engaged with the concave ring 141.

It should be noted that the inner diameter of the protrusion 121 is smaller than the outer diameter of the end of the connecting member 14 with the larger cross-sectional dimension, but larger than the outer diameter of the end of the connecting member 14 with the smaller cross-sectional dimension, so that the connecting member 14 can be completely inserted into the second fitting part 12.

When the first fitting portion 11, the second fitting portion 12, and the connecting member 14 are assembled, the second fitting portion 12 is first abutted against the first fitting portion 11; then, the end with the smaller cross section of the connecting piece 14 passes through the channel 13 on the second matching part 12, and due to the existence of the protrusion 121, the end with the larger cross section of the connecting piece 14 and the protrusion 121 form interference and remain in the hollow structure of the second matching part 12, when the connecting piece 14 extends into the extending part 112 and the step surfaces are matched with each other, the connecting piece 14 is fixedly connected with the first matching part 11; at this time, the protrusion 121 is caught in the concave ring 141, and the second coupling portion 12 can rotate around its central axis with respect to the connection member 14.

In the present embodiment, the first mating portion 11 and the connector 14 are fixedly connected by ultrasonic welding. Of course, in other embodiments, the first mating portion 11 and the connector 14 may be fixedly connected by means of strong adhesion.

Second join in marriage and connect portion 12 and body 3 threaded connection, it is specific, be formed with internal thread 122 on the inner wall of second join in marriage and connect portion 12, be provided with on the outer wall that the corresponding body 3 is used for the butt joint of butt joint end with internal thread 122 matched with external screw thread 31, internal thread 122 and external screw thread 31 structure are current structure, do not describe herein again.

Indeed, in other embodiments, the connection mode of the second mating portion and the pipe body may be a connection structure such as a socket connection, and no specific limitation is made herein, and in addition, the second mating portion may also be connected to the pipe body through an external connection device, so as to easily connect to the pipe body without a butt end, and the source of water entering the pipe body is not specifically limited herein, and may be a faucet or other device with water.

It should be noted that the second fitting portion 12 can rotate relative to the first fitting portion 11, so that the pipe body 3 and the cleaning accessory 1 can be mounted by rotating the second fitting portion 12 without rotating the pipe body 3 itself, which is more labor-saving and convenient.

When the pipe body 3 and the spray gun 2 are connected through the cleaning accessory 1, the first matching part 11 is firstly butted with the spray gun 2, and then the second matching part 12 is butted with the pipe body 3, at the moment, the second matching part 12 only needs to be rotated, and the pipe body 3 is continuously screwed into the second matching part 12 under the action of threads, so that the butt joint of the pipe body 3 and the spray gun 2 is realized.

In the present embodiment, when the pipe body 3 is connected to the second coupling portion 12, a seal 15 is further provided in the second coupling portion 12 between the pipe body 3 and the connector 14, as shown in fig. 1. The sealing element 15 is a sealing ring 15, and the sealing ring 15 can be arranged on the connecting element 14 or on the butt end of the pipe body 3, so that the pipe body 3 and the connecting element 14 are connected in a sealing manner.

Referring to fig. 6, after the spray gun 2 is used each time, the parts with paint or other liquid adhered to the inside of the storage tank 22 and the working head 21 need to be cleaned, at this time, only the storage tank 22 needs to be taken down, the spray gun 2 is abutted with the cleaning accessory 1, the pipe body 3 is abutted with the cleaning accessory 1, the liquid inside the pipe body 3 enters the connecting pipe 116 and the liquid inlet pipe 214 through the channel 13, and then enters the working head 21 from the liquid inlet pipe 214, so that the working head 21 is cleaned.

In a possible embodiment, the cleaning accessory 1 can also be used to connect the pipe 3 connected with the water source with the spray gun 2; thus, the spray gun 2 can be used for irrigating plants or cleaning the plants.

In order to provide a suitable pressure for the water entering the interior of the spray gun 2 from the self-cleaning attachment 1, and thus a better cleaning effect, the inner diameter D1 of the connecting tube 116 is in the range of 6-12 mm; the outer diameter D2 of the first mating portion 11 ranges from 60 mm to 130mm, that is, the outer diameter D2 of the first housing 111 ranges from 60 mm to 130 mm; the inner diameter D3 of the second mating portion 12 ranges from 15 to 25 mm. Preferably, the inner diameter D1 of the connecting tube 116 is in the range of 8-10 mm; the outer diameter D2 of the first mating portion 11 ranges from 80 mm to 100 mm; the second mating portion 12 has an inner diameter D3 in the range of 16-20 mm. The ratio of the outer diameter D2 of the first fitting part 11 to the inner diameter D1 of the connection pipe 116 is in the range of 7 to 13, and the ratio of the inner diameter D3 of the second fitting part 12 to the inner diameter D1 of the connection pipe 116 is in the range of 1.25 to 3. Preferably, the ratio of the outer diameter D2 of the first fitting part 11 to the inner diameter D1 of the connection pipe 116 is in the range of 9 to 11, and the ratio of the inner diameter D3 of the second fitting part 12 to the inner diameter D1 of the connection pipe 116 is in the range of 1.8 to 2.2. Specific numerical values of the inner diameter D1 of the connection pipe 116, the outer diameter D2 of the first mating portion 11, the inner diameter D3 of the second mating portion 12, the ratio of the outer diameter D2 of the first mating portion 11 to the inner diameter D1 of the connection pipe 116, and the ratio of the inner diameter D3 of the second mating portion 12 to the inner diameter D1 of the connection pipe 116 are not specifically limited herein, and may be set according to actual needs.

To sum up, the utility model provides a be formed with the passageway that makes liquid in the body get into the spray gun between the entry on the clean annex and the export, when clean annex is connected spray gun and body, in the water in the body gets into the spray gun through clean annex, realize the inside washing of spray gun working head, need not to dismantle the spray gun working head, convenient operation, save time, clean and maintenance efficiency are high, this clean annex simple structure has improved user's maneuverability, has improved user experience.

The features of the above embodiments may be arbitrarily combined, and for the sake of brevity, all possible combinations of the features in the above embodiments are not described, but should be construed as being within the scope of the present specification as long as there is no contradiction between the combinations of the features.

The above embodiments only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the utility model. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A cleaning accessory for connecting a spray gun and a pipe body, the cleaning accessory comprising a first mating portion and a second mating portion; the first matching and connecting part is detachably connected with the spray gun and is provided with an outlet communicated with a liquid inlet pipe of the spray gun; the second matching and connecting part is detachably connected with the pipe body, an inlet communicated with the pipe body is formed in the second matching and connecting part, and a channel enabling liquid in the pipe body to enter the spray gun is formed between the inlet and the outlet.

2. The cleaning attachment of claim 1, wherein the spray gun includes an inlet fitting for connection to a reservoir tank, the first fitting being threadably connected to the inlet fitting.

3. The cleaning attachment of claim 1, wherein the first mating portion comprises a connecting tube having a first end and a second end, the first end in communication with the outlet; the second end is used for being inserted into the liquid inlet pipe.

4. The cleaning attachment of claim 1, wherein the second mating portion is threadably connected to the tubular body.

5. The cleaning attachment of claim 1, wherein the second mating portion is movable relative to the first mating portion.

6. The cleaning attachment of claim 5, further comprising a connector fixedly coupled to the first mating portion, wherein a recessed ring is formed around the connector and the first mating portion, wherein the second mating portion has a protrusion that mates with the recessed ring, and wherein the second mating portion is rotatable relative to the connector.

7. A cleaning attachment according to claim 3, wherein the connecting tube has an internal diameter in the range of 6-12 mm; the inner diameter of the second matching part ranges from 15 mm to 25 mm.

8. The cleaning attachment of claim 7, wherein the connecting tube has an inner diameter in the range of 8-10 mm; the inner diameter of the second matching part ranges from 16 mm to 20 mm.

9. The cleaning attachment of claim 3, wherein the ratio of the outer diameter of the first fitting portion to the inner diameter of the connecting tube is in the range of 7 to 13, and the ratio of the inner diameter of the second fitting portion to the inner diameter of the connecting tube is in the range of 1.25 to 3.

10. The cleaning attachment of claim 9, wherein the first mating portion has an outer diameter in the range of 60-130 mm.