Cleaning accessory and spray gun

Abstract

The utility model relates to the technical field of spray guns, and particularly discloses a cleaning accessory and a spray gun. The cleaning accessory comprises a first connector connected with cleaning equipment in a sealed mode, a second connector connected with a liquid container, an air pressurizing pipe with one end connected with the first connector and the other end connected with the second connector, and a liquid flow guide pipe; one end of the air pressurizing pipe is communicated with an air source of cleaning equipment or external equipment, the other end is communicated with an inner cavity of the liquid container, one end of the liquid guide pipe is communicated with a liquid inlet channel of the cleaning equipment, and the other end is communicated with the inner cavity of the liquid container; after airflow provided by the air source is guided into the liquid container through the air pressurizing pipe, liquid in the liquid container can be pressed into the liquid flow guide pipe and flows into the cleaning equipment. The cleaning accessory is used for connecting independent cleaning equipment and a liquid container, the liquid container can be placed on the ground and does not need to move along with the cleaning equipment in the operation and use process of the cleaning equipment, and the load of arms of an operator is relieved.

Description

Technical Field

[0001] This application relates to the field of spray gun technology, and in particular to a cleaning accessory and spray gun. Background Technology

[0002] A spray gun is a spraying device that atomizes liquid and then sprays it onto the object to be coated to obtain a uniform and aesthetically pleasing coating.

[0003] The spray gun has a material tank, and its main function is spraying. As the functions of the spray gun continue to develop, some users fill the material tank with water. After the spray gun atomizes the water, it can be used for watering flowers or washing cars. During use, users have found that the material tank and the spray gun body are picked up and moved together. Moreover, the water in the material tank needs to be added frequently. In order to avoid adding water frequently, the volume of the material tank needs to be increased. If the volume of the material tank is increased, the user will feel that the arm load is too large and the operation of the spray gun is cumbersome. Utility Model Content

[0004] The purpose of at least one specific embodiment of this utility model is to overcome the defects of the existing technology and provide a cleaning accessory and spray gun.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A cleaning accessory, comprising:

[0007] The first connector is suitable for sealing and connecting the cleaning equipment;

[0008] The second connector is suitable for sealing and connecting liquid containers;

[0009] An air booster pipe has one end connected to a first connector and the other end connected to a second connector. One end of the air booster pipe is connected to the air source of the cleaning equipment or external equipment, and the other end is connected to the inner cavity of the liquid container.

[0010] A liquid guide tube, one end of which is connected to a first connector and the other end of which is connected to a second connector. One end of the liquid guide tube is connected to the liquid inlet channel of the cleaning equipment, and the other end is connected to the inner cavity of the liquid container.

[0011] After the air supply provided by the air source is introduced into the liquid container through the air booster pipe, the liquid inside the liquid container can be forced into the liquid guide pipe and flow into the cleaning equipment.

[0012] Furthermore, the first connector is threadedly connected to the connecting part of the cleaning equipment, and the first connector and the connecting part form a sealed cavity. The sealed cavity is connected to one end of the air booster pipe and is connected to the air source.

[0013] Furthermore, the second connector is threadedly connected to the liquid container, and the second connector seals the liquid container.

[0014] Furthermore, the first connector is provided with a first air pipe connector and a first liquid pipe connector, one end of the air booster pipe is connected to the first air pipe connector, and the first air pipe connector keeps the air booster pipe in communication with the sealed cavity;

[0015] One end of the liquid guide tube is connected to the first liquid pipe connector, which keeps the liquid guide tube connected to the liquid inlet channel of the cleaning equipment.

[0016] Furthermore, the second connector is provided with a second air pipe connector and a second liquid pipe connector. One end of the air booster pipe is connected to the second air pipe connector, and the second air pipe connector keeps the air booster pipe connected to the inner cavity of the liquid container.

[0017] One end of the liquid guide tube is connected to the second liquid pipe connector, which keeps the liquid guide tube connected to the inner cavity of the liquid container.

[0018] The advantages of the cleaning accessory provided in this application compared with the prior art are as follows: The cleaning accessory has a first connector and a second connector. The first connector is sealed to the cleaning equipment, and the second connector is sealed to the liquid container. An air booster pipe and a liquid guide pipe are connected between the first connector and the second connector. After the airflow provided by the air source is introduced into the liquid container through the air booster pipe, the liquid inside the liquid container can be forced into the liquid guide pipe and flow into the cleaning equipment. The cleaning equipment atomizes and sprays the introduced liquid. This cleaning accessory is mainly used to connect independent cleaning equipment and liquid container. During the operation of the cleaning equipment, the liquid container can be placed on the ground without moving with the cleaning equipment, which reduces the load on the operator's arms.

[0019] Moreover, this cleaning accessory is versatile. As long as the connector specifications are compatible, it can be connected to different types and sizes of cleaning equipment and various suitable liquid containers, thus broadening the applicability of the entire cleaning system. Users can choose different equipment and containers to combine according to their actual needs.

[0020] Another technical solution adopted in this application is: to provide a spray gun, which includes the above-mentioned cleaning accessories, the spray gun is configured as the above-mentioned cleaning device, and the liquid container is connected to the spray gun through the cleaning accessories.

[0021] Furthermore, the spray gun includes:

[0022] Spray gun housing;

[0023] The nozzle is located at one end of the spray gun housing;

[0024] The atomizing cap is installed at one end of the spray gun body and fitted onto the outside of the nozzle;

[0025] The needle column assembly, which is installed inside the spray gun housing, is used to seal the nozzle;

[0026] The spray gun housing has a mounting part, and the needle column assembly is installed in the inner cavity of the mounting part. The inner cavity of the mounting part is constructed as a liquid guiding cavity. The liquid guiding cavity is connected to the liquid guiding pipe through the liquid inlet channel, and the nozzle is located at the end of the liquid guiding cavity.

[0027] The cavity between the mounting part and the spray gun housing is constructed as a gas guiding cavity. After the first connector is connected to the spray gun housing, it forms a sealed cavity. The gas guiding cavity is connected to the sealed cavity through the first gas guiding channel, and the gas guiding cavity is connected to the atomizing hole on the atomizing cap through the second gas guiding channel.

[0028] Furthermore, a blower assembly is installed on the end of the spray gun housing away from the nozzle. The blower assembly is used to blow air into the gas guide chamber. Part of the airflow in the gas guide chamber enters the sealed cavity through the first gas guide channel and enters the liquid container through the air booster pipe connected to the sealed cavity, so that the liquid in the liquid container is forced into the liquid guide pipe and flows into the liquid guide chamber.

[0029] Another part of the airflow in the gas guide cavity enters the atomizing cap through the second gas guide channel and is ejected from the atomizing hole.

[0030] Furthermore, the needle post assembly includes:

[0031] The needle column is installed in the inner cavity of the mounting part;

[0032] The elastic element has one end connected to the end of the pin column and the other end abutting against the inner wall of the mounting part;

[0033] A sealing element is fitted over the outside of the needle column, and the circumferential surface of the sealing element contacts the inner wall of the liquid guiding cavity.

[0034] Among them, the end of the needle column away from the elastic element is the sealing end. This sealing end faces the nozzle, and under the elastic force of the elastic element, the sealing end can seal the nozzle.

[0035] Furthermore, a trigger assembly is rotatably connected to the spray gun housing. The trigger assembly includes a trigger and a pin connected to the trigger. The pin passes through the needle post. The spray gun housing is provided with a movable groove that provides space for the pin to move back and forth.

[0036] The advantages of the spray gun provided in this application compared to the prior art are as follows: The spray gun connects to a liquid container via the aforementioned cleaning attachment. During spraying, the operator only needs to move the spray gun body, reducing the load on the operator's arms. This is particularly important for work scenarios involving prolonged spray gun use (such as large-area cleaning or painting), effectively reducing operator fatigue, improving work efficiency, and helping to reduce work errors or occupational diseases that may be caused by excessive fatigue. Furthermore, the liquid container can be placed on the ground during operation, and its volume can be made larger. A larger volume means that frequent liquid replenishment is unnecessary during spraying, reducing the number of interruptions and thus improving work continuity and efficiency. Attached Figure Description

[0037] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram of the structure of the cleaning attachment in one embodiment of this application.

[0039] Figure 2 This is a cross-sectional schematic diagram of the cleaning attachment in one embodiment of this application.

[0040] Figure 3 This is a schematic diagram of the spray gun structure in one embodiment of this application.

[0041] Figure 4 This is a top view of a spray gun in one embodiment of this application.

[0042] Figure 5 for Figure 4 A schematic diagram of the cross section along line AA.

[0043] Figure 6 for Figure 4 A schematic diagram of the cross section along line BB.

[0044] Figure 7 This is a schematic diagram of the structure of a cleaning device in one embodiment of this application.

[0045] Figure 8 This is a schematic diagram of the assembly of the trigger assembly of the cleaning device in one embodiment of this application. Detailed Implementation

[0046] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0047] Example 1

[0048] Reference Figure 1 , Figure 2 , Figure 5 , Figure 6 A cleaning accessory 100 includes a first connector 110 sealed to a cleaning device 200, a second connector 120 connected to a liquid container 300, an air booster pipe 130 connected to the first connector 110 at one end, and a liquid guide pipe 140 connected to the second connector 120 at the other end. One end of the air booster pipe 130 is connected to an air source of the cleaning device or an external device, and the other end is connected to the inner cavity of the liquid container 300. One end of the liquid guide pipe 140 is connected to the liquid inlet channel of the cleaning device 200, and the other end is connected to the inner cavity of the liquid container 300.

[0049] After the airflow provided by the air source is introduced into the liquid container 300 through the air booster pipe 130, the liquid inside the liquid container 300 can be forced into the liquid guide pipe 140 and flow into the cleaning equipment.

[0050] In this embodiment, the first connector 110 is threadedly connected to the connecting part of the cleaning device 200, and the first connector 110 and the connecting part form a sealed cavity 200a. The sealed cavity is connected to one end of the air booster pipe 130 and is connected to an air source. The second connector 120 is threadedly connected to the liquid container 300, and the second connector 120 seals the liquid container 300.

[0051] To facilitate the quick installation of the air booster pipe 130 and the liquid guide pipe 140 between the first connector 110 and the second connector 120, in some embodiments, the first connector 110 is provided with a first air pipe connector 150 and a first liquid pipe connector 160. One end of the air booster pipe 130 is inserted into the first air pipe connector 150, and the first air pipe connector 150 keeps the air booster pipe 130 in communication with the sealed cavity 200a.

[0052] One end of the liquid guide tube 140 is connected to the first liquid pipe connector 160, and the first liquid pipe connector 160 keeps the liquid guide tube 140 connected to the liquid inlet channel 200b of the cleaning equipment 200.

[0053] Furthermore, the second connector 120 is provided with a second air pipe connector 170 and a second liquid pipe connector 180. One end of the air booster pipe 130 is connected to the second air pipe connector 170, and the second air pipe connector 170 keeps the air booster pipe 130 in communication with the inner cavity of the liquid container 300.

[0054] One end of the liquid guide tube 140 is connected to the second liquid pipe connector 180, and the second liquid pipe connector 180 keeps the liquid guide tube 140 in communication with the inner cavity of the liquid container 300.

[0055] The cleaning accessory 100 has a first connector 110 and a second connector 120. The first connector 110 is sealed to the cleaning device 200, and the second connector 120 is sealed to the liquid container 300. An air booster pipe 130 and a liquid guide pipe 140 are connected between the first connector 110 and the second connector 120. After the air supply provided by the air source is introduced into the liquid container 300 through the air booster pipe 130, the liquid inside the liquid container 300 can be forced into the liquid guide pipe 140 and flow into the cleaning device 200. The cleaning device 200 atomizes and sprays the introduced liquid. The cleaning accessory 100 is mainly used to connect the independent cleaning device 200 and the liquid container 300. During the operation of the cleaning device 200, the liquid container 300 can be placed on the ground without having to move with the cleaning device, reducing the load on the operator's arms.

[0056] Moreover, the cleaning accessory 100 is versatile. As long as the connector specifications are compatible, it can connect to different types and specifications of cleaning equipment 200 and various suitable liquid containers 300, thus broadening the applicability of the entire cleaning system. Users can choose different equipment and containers to combine according to their actual needs.

[0057] Example 2

[0058] Based on the same technical concept, and referring to Figures 3 to 8 This application provides a spray gun, which includes the cleaning attachment 100 described above. The spray gun is configured as the cleaning device 200 in Embodiment 1 above, and the liquid container 300 is connected to the spray gun through the cleaning attachment 100.

[0059] Furthermore, the spray gun includes:

[0060] The spray gun housing 201, the nozzle 202 disposed at one end of the spray gun housing 201, the atomizing cap 203 installed at one end of the spray gun body 201 and sleeved on the outside of the nozzle 202, and the needle column assembly 204 installed inside the spray gun housing 201 for sealing the nozzle 202.

[0061] The spray gun housing 201 has a mounting part 205 inside, and the needle column assembly 204 is installed in the inner cavity of the mounting part 205. The inner cavity of the mounting part is configured as a liquid guiding cavity 206. The liquid guiding cavity 206 is connected to the liquid guiding pipe 140 through the liquid inlet channel 200b. The nozzle 202 is located at the end of the liquid guiding cavity 206.

[0062] The cavity between the mounting part 205 and the spray gun housing 201 is constructed as a gas guiding cavity 207. After the first connector 101 is connected to the spray gun housing 201, it forms a sealed cavity 200a. The gas guiding cavity 207 is connected to the sealed cavity 200a through the first gas guiding channel 208. The gas guiding cavity 207 is connected to the atomizing hole 210 on the atomizing cap 203 through the second gas guiding channel 209.

[0063] Furthermore, a blower assembly (not shown) is installed on the end of the spray gun housing 201 away from the nozzle 202. The blower assembly is used to blow air into the gas guide chamber 207. Part of the airflow in the gas guide chamber 207 enters the sealed cavity 200a through the first gas guide channel 208, and enters the liquid container 300 through the air booster pipe 130 connected to the sealed cavity 200a. This causes the liquid in the liquid container 300 to be forced into the liquid guide pipe 140 and flow into the liquid guide chamber 206.

[0064] Another part of the airflow in the gas guide cavity 207 enters the atomizing cap 203 through the second gas guide channel 209 and is ejected from the atomizing hole 210.

[0065] Furthermore, refer to Figure 7 The needle column assembly 204 includes a needle column 2041 installed in the liquid guiding cavity 206, an elastic member 2042 with one end connected to the end of the needle column 2041 and the other end abutting against the inner wall of the mounting part 205, and a sealing member 2043 sleeved on the outside of the needle column 2041. The circumferential surface of the sealing member 2043 contacts the inner wall of the liquid guiding cavity 206 to ensure the sealing of the needle column 2041 during its movement in the liquid guiding cavity 206. The elastic member 2042 is preferably a spring. The end of the needle column 2041 away from the elastic member 2042 is a sealing end 2044. The sealing end 2044 faces the nozzle 202. Under the elastic force of the elastic member 2042, the sealing end 2044 can seal the nozzle 202.

[0066] Furthermore, refer to Figure 8 A trigger assembly 211 is rotatably connected to the spray gun housing 201. The trigger assembly 211 includes a trigger 2111 and a pin 2112 connected to the trigger 2111. The pin 2112 passes through the needle post 2041. The spray gun housing 201 is provided with a movable groove 201a, which provides space for the pin 2112 to move back and forth.

[0067] When the trigger 2111 is not pressed, the needle column assembly 204, under the elastic force of the elastic element 2042, blocks the nozzle 202 with the sealing end 2044 of the needle column 2041, and the liquid in the liquid guide cavity 206 cannot be ejected.

[0068] When the trigger 2111 is pressed, the trigger 2111 drives the needle column 2041 to move against the elastic force of the elastic element 2042 through the pin 2112, so that the sealing end 2044 of the needle column 2041 leaves the nozzle 202. The liquid in the liquid guide chamber 206 is sprayed out from the nozzle 202 under the action of gas pressure. At the same time, the airflow sprayed out by the atomizing cap 203 atomizes the liquid sprayed out by the nozzle 202.

[0069] The spray gun is connected to the liquid container 300 via the aforementioned cleaning attachment 100. During spraying, the operator only needs to move the spray gun body 201, which reduces the load on the operator's arm. This is especially important for work scenarios where spray guns are used for extended periods (such as large-area cleaning or painting), effectively reducing operator fatigue, improving work efficiency, and helping to reduce work errors or occupational diseases that may be caused by excessive fatigue. Moreover, the liquid container 300 can be placed on the ground during operation, and its volume can be made large. A larger volume means that frequent replenishment of liquid is not required during spraying, reducing the number of interruptions and thus improving work continuity and efficiency.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A cleaning accessory, characterized in that, include: The first connector is suitable for sealing and connecting the cleaning equipment; The second connector is suitable for sealing and connecting liquid containers; An air booster pipe has one end connected to the first connector and the other end connected to the second connector. One end of the air booster pipe is connected to the air source of the cleaning equipment or external equipment, and the other end is connected to the inner cavity of the liquid container. A liquid guide tube, one end of which is connected to the first connector and the other end of which is connected to the second connector, wherein one end of the liquid guide tube is connected to the liquid inlet channel of the cleaning equipment and the other end is connected to the inner cavity of the liquid container; After the airflow provided by the air source is introduced into the liquid container through the air booster pipe, the liquid inside the liquid container can be forced into the liquid guide pipe and flow into the cleaning equipment.

2. The cleaning accessory according to claim 1, characterized in that, The first connector is threadedly connected to the connecting part of the cleaning equipment. The first connector and the connecting part form a sealed cavity. The sealed cavity is connected to one end of the air booster pipe and is connected to an air source.

3. The cleaning accessory according to claim 1, characterized in that, The second connector is threadedly connected to the liquid container, and the second connector seals the liquid container.

4. The cleaning accessory according to claim 2, characterized in that, The first connector is provided with a first air pipe connector and a first liquid pipe connector. One end of the air booster pipe is connected to the first air pipe connector. The first air pipe connector keeps the air booster pipe in communication with the sealed cavity. One end of the liquid guide tube is connected to the first liquid pipe connector, and the first liquid pipe connector keeps the liquid guide tube connected to the liquid inlet channel of the cleaning equipment.

5. The cleaning accessory according to claim 3, characterized in that, The second connector is provided with a second air pipe connector and a second liquid pipe connector. One end of the air booster pipe is connected to the second air pipe connector, and the second air pipe connector keeps the air booster pipe in communication with the inner cavity of the liquid container. One end of the liquid guide tube is connected to the second liquid pipe connector, and the second liquid pipe connector keeps the liquid guide tube in communication with the inner cavity of the liquid container.

6. A spray gun, characterized in that, Includes the cleaning accessory as described in any one of claims 1 to 5, wherein the spray gun is configured as the cleaning device, and the liquid container is connected to the spray gun via the cleaning accessory.

7. The spray gun according to claim 6, characterized in that, include: Spray gun housing; A nozzle is disposed at one end of the spray gun housing; Atomizing cap is installed at one end of the spray gun body and sleeved on the outside of the nozzle; A needle column assembly, which is installed inside the spray gun housing, is used to seal the nozzle; The spray gun housing has a mounting part, the needle column assembly is installed in the inner cavity of the mounting part, the inner cavity of the mounting part is constructed as a liquid guiding cavity, the liquid guiding cavity is connected to the liquid guiding pipe through the liquid inlet channel, and the nozzle is located at the end of the liquid guiding cavity; The cavity between the mounting part and the spray gun housing is constructed as a gas guiding cavity. After the first connector is connected to the spray gun housing, it forms a sealed cavity. The gas guiding cavity is connected to the sealed cavity through a first gas guiding channel, and the gas guiding cavity is connected to the atomizing hole on the atomizing cap through a second gas guiding channel.

8. The spray gun according to claim 7, characterized in that, A blower assembly is installed on the end of the spray gun housing away from the nozzle. The blower assembly is used to blow air into the gas guide cavity. Part of the airflow in the gas guide cavity enters the sealed cavity through the first gas guide channel and enters the liquid container through the air booster pipe connected to the sealed cavity, so that the liquid in the liquid container is forced into the liquid guide pipe and flows into the liquid guide cavity. Another portion of the airflow within the gas guide cavity enters the atomizing cap through the second gas guide channel and is ejected from the atomizing hole.

9. The spray gun according to claim 7, characterized in that, The needle column assembly includes: The needle column is installed in the inner cavity of the mounting part; An elastic element, one end of which is connected to the end of the needle post, and the other end of which abuts against the inner wall of the mounting part; A sealing element is fitted over the outside of the needle column, and the circumferential surface of the sealing element contacts the inner wall of the liquid guiding cavity; The end of the needle column away from the elastic element is the sealing end, which faces the nozzle. Under the elastic force of the elastic element, the sealing end can seal the nozzle.

10. The spray gun according to claim 9, characterized in that, A trigger assembly is rotatably connected to the spray gun housing. The trigger assembly includes a trigger and a pin connected to the trigger. The pin passes through the needle post. The spray gun housing is provided with a movable groove, which provides space for the pin to move back and forth.

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