Multi-channel spraying device

Abstract

The utility model discloses a multi-channel spraying device. The multi-channel spraying device comprises a shell, a power device, a multi-way spraying valve and a plurality of joints, according to the multi-channel spraying valve, the valve element, the rear valve body and the front valve body are reasonably arranged to form the multi-channel spraying valve, so that various spraying materials can be sprayed out in a high-speed rotating mode, and the inner wall of a pipeline can be sprayed. When at least two channels in the multi-channel spraying valve convey spraying materials, the materials can be sequentially sprayed out of the corresponding sprayers in a rotating mode. When the multiple channels are opened at the same time, water can be sprayed to the inner wall of the pipeline at the same time, and mixing treatment is achieved on the inner wall of the pipeline. When the multiple channels are opened in sequence, spraying can be conducted on the inner wall of the pipeline in sequence, other parts do not need to be replaced or cleaned, multi-layer spraying treatment can be conducted on the inner wall of the pipeline, and therefore the spraying efficiency of the inner wall of the pipeline is greatly improved. And meanwhile, different spraying scenes of the inner wall of the pipeline can be coped with.

Description

Technical Field

[0001] This utility model relates to the field of surface spraying technology, specifically to a multi-channel spraying device. Background Technology

[0002] Existing pipeline spraying equipment typically only allows for the spraying of one type of material at a time. If multiple spraying operations are required, frequent equipment replacement and cleaning are necessary, reducing work efficiency. Furthermore, for scenarios requiring mixed spraying, multiple materials are usually pre-mixed and then loaded into the spraying equipment's hopper. This method makes it difficult to control the amount of material used, and excessive mixing can easily lead to waste.

[0003] Therefore, we considered whether there was a multi-channel spraying device that could use different channels to input and output different spraying materials, thereby achieving multi-channel input and output and thus dealing with different spraying scenarios on the inner wall of the pipeline. Utility Model Content

[0004] This utility model provides a multi-channel spraying device.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A multi-channel spraying device includes a housing, a power unit, a multi-port spraying valve, and several connectors.

[0007] The power unit is installed and fixed inside the housing, serving as the driving device for the multi-way spraying valve, driving the multi-way spraying valve to rotate at high speed. The multi-way spraying valve is installed and fixed outside the housing, serving as a channel switching mechanism for the sprayed paint. The connector is installed and fixed on the valve body of the multi-way spraying valve, serving as a connection between the multi-way spraying valve and the spraying pipeline.

[0008] The multi-port spray valve includes a valve core, a rear valve body, and a front valve body;

[0009] The valve core has a plurality of valve core inlets and a plurality of valve core outlets regularly arranged on it. The plurality of valve core inlets and the plurality of valve core outlets are connected one by one to form a flow channel inside the valve core. The plurality of valve core inlets and the plurality of valve core outlets are regularly arranged on the rear section and the front section of the valve core, respectively. The plurality of valve core inlets are staggered front to back, and the plurality of valve core outlets are regularly arranged front to back.

[0010] The rear valve body is disposed at the rear section of the valve core, the valve core passes through the rear valve body and is rotatably connected to it, the front valve body is disposed at the front section of the valve core and is fixedly connected to it, the power device drives the valve core to rotate at high speed in the rear valve body, and the valve core drives the front valve body to rotate at high speed in the rear valve body.

[0011] The rear valve body has several rear valve body interfaces regularly arranged at several valve core inlet rotation positions, and the connectors are installed thereon. The several rear valve body interfaces are connected to the several valve core inlets one by one.

[0012] The front valve body has several front valve body interfaces regularly arranged at several valve core outlet positions, and the connectors are installed thereon. The several front valve body interfaces are connected to the several valve core outlets one by one.

[0013] Furthermore, the housing includes an outer shell serving as a side panel, and connecting plates are respectively provided at the front and rear ends of the outer shell to form left and right connecting plates. The left and right connecting plates are fixedly connected together by several connecting rods to form the frame structure of the housing. The frame structure is surrounded by the sides of the outer shell to form the housing.

[0014] Furthermore, the connecting plate serves as the mounting plate for the power device, which is bolted to the inner side of the connecting plate and regularly arranged inside the housing, surrounded by the outer casing.

[0015] Furthermore, a transition plate is fixedly installed on the outer side of the connecting plate by several columns. The transition plate serves as the mounting plate for the rear valve body, and the rear valve body is fixedly installed on the outer side of the transition plate. Both the transition plate and the connecting plate connected to it are provided with through holes to facilitate the passage of the power device shaft.

[0016] Furthermore, one or more ball bearings are regularly arranged between the rear valve body and the valve core. The ball bearings are installed and fixed in the bearing slots at both ends of the rear valve body. The valve core passes through the inner ring of the ball bearing and the rear valve body in sequence, and rotates at high speed in the rear valve body and the ball bearing.

[0017] Furthermore, a baffle is regularly arranged between the rear valve body and the front valve body. The baffle blocks the ball bearing in the front end slot of the rear valve body and fixes it in the front end slot of the rear valve body.

[0018] Furthermore, between the rear valve body and the valve core, piston seals for sealing are regularly arranged on both the front and rear sides of several valve core inlets; between the front valve body and the valve core, piston seals for sealing are also regularly arranged on both the front and rear sides of several valve core outlets.

[0019] Furthermore, the power unit is an electric motor or a pneumatic motor.

[0020] Furthermore, the plurality of valve core inlets, plurality of valve core outlets, and plurality of flow channels are respectively provided in three sets, forming a three-channel spraying device.

[0021] The beneficial effects of this utility model are:

[0022] This invention utilizes a multi-channel spray valve, composed of a valve core, rear valve body, and front valve body, to spray various coating materials at high speed onto the inner wall of a pipeline. When at least two channels of the multi-channel spray valve are supplying coating materials, the materials are sequentially sprayed from the corresponding nozzles. When multiple channels are open simultaneously, the materials can be sprayed onto the inner wall of the pipeline at the same time, achieving a mixing process. When multiple channels are opened sequentially, the materials can be sprayed onto the inner wall of the pipeline in turn, eliminating the need to replace or clean other components and enabling multi-layer coating of the pipeline inner wall, thus significantly improving the spraying efficiency. Furthermore, it can handle various spraying scenarios for the inner wall of pipelines. Attached Figure Description

[0023] Figure 1 This is a structural diagram of the present invention;

[0024] Figure 2 for Figure 1 Exploded structure diagram;

[0025] Figure 3 for Figure 2 Exploded view of the middle section of the structure;

[0026] Figure 4 for Figure 1 Front view;

[0027] Figure 5 for Figure 4 A cross-sectional view along the AA direction;

[0028] Figure 6 for Figure 5 A sectional view of the middle section of the structure;

[0029] The diagram is marked as follows:

[0030] 1. Shell, 11. Outer shell, 12. Connecting plate, 121. Left connecting plate, 122. Right connecting plate, 13. Connecting rod, 14. Column, 15. Transition plate;

[0031] 2. Multi-port spray valve,

[0032] 21. Valve core; 210. Rotary shaft; 211. Valve core inlet; 212. Valve core outlet; 213. Valve core flow channel; 2111. Valve core A inlet; 2112. Valve core B inlet; 2113. Valve core C inlet; 2121. Valve core A outlet; 2122. Valve core B outlet; 2123. Valve core C outlet;

[0033] 22. Rear valve body; 2201. Rear valve body A interface; 2202. Rear valve body B interface; 2203. Rear valve body C interface;

[0034] 23. Front valve body; 2301. Front valve body A interface; 2302. Front valve body B interface; 2303. Front valve body C interface;

[0035] 24. Ball bearing; 25. Piston seal; 26. Baffle plate; 27. Sealing plug;

[0036] 3. Connector, 301, discharge port. Detailed Implementation

[0037] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0038] Unless otherwise defined, 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 invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0039] like Figure 1-6 As shown, this utility model discloses a multi-channel spraying device, including a housing 1, a power unit (hidden in the figure), a multi-way spraying valve 2, and several connectors 3. The power unit is installed and fixed inside the housing 1, serving as the driving device for the multi-way spraying valve 2. The multi-way spraying valve 2 is installed and fixed outside the housing 1, serving as a switching mechanism for the sprayed paint. The connectors 3 are installed and fixed on the valve body of the multi-way spraying valve 2, serving as the connection points between the spraying pipeline and this device (multi-channel spraying device).

[0040] The power unit drives the multi-way spray valve 2 to rotate at high speed. The paint flows in from the rear end of the multi-way spray valve 2, flows through the multi-way spray valve 2, and then rotates out from the front end of the multi-way spray valve 2. It then passes through the connector, pipeline and nozzle and is sprayed out to spray the inner wall of the pipeline.

[0041] like Figure 1 As shown, from left to right are the rear end and front end of the multi-channel spraying device.

[0042] Furthermore, such as Figure 1 and Figure 2 As shown, the housing 1 includes an outer shell 11 serving as side panels, and the front and rear ends of the outer shell 11 (i.e., Figure 1 Connecting plates 12 are respectively provided at the left and right ends of the shell 1, forming a left connecting plate 121 and a right connecting plate 122. The left and right connecting plates are fixedly connected together by several connecting rods 13 to form the frame structure of the shell 1. The left and right connecting plates are surrounded by the sides of the shell 11 to form the shell 1.

[0043] Furthermore, the connecting plate 12 also serves as a mounting plate for the power unit, which is fixed inside the connecting plate and surrounded by the outer casing 11, thus being installed inside the casing 1.

[0044] The power device in this utility model is not limited. An electric motor or a pneumatic motor can be used as the power device for the multi-way spray valve 2.

[0045] like Figure 1 and Figure 2 As shown, in one embodiment, the right connecting plate 122 serves as a mounting plate for the power unit, and the power unit is mounted at the rear end of the right mounting plate (i.e., Figure 1 The multi-channel spraying device is installed on the left side of the housing 11. The following embodiments all use this embodiment as an example, with the power unit installed on the left side and the multi-channel spraying valve installed on the right side.

[0046] like Figure 2 , Figure 3 and Figure 5 As shown, the multi-port spray valve 2 in this device includes a valve core 21, a rear valve body 22, and a front valve body 23. The valve core 21 has several valve core inlets 211 and several valve core outlets 212 regularly arranged on it, and these inlets and outlets are interconnected to form several flow channels 213. The spray coating material flows in from the valve core inlets 211, flows through the independent flow channels 213 to the corresponding valve core outlets 212, and flows out from the outlets 212. Then, it passes through the connector 3, the pipeline, and the rotating nozzle to be sprayed out, thereby achieving spray coating treatment of the inner wall of the pipeline with various spray coating materials.

[0047] Furthermore, the valve core 21 is divided into a front section and a rear section in the middle. The aforementioned valve core inlets 211 are regularly arranged on the rear section of the valve core, the valve core outlets 212 are regularly arranged on the front section of the valve core, and the flow channels 213 are regularly arranged inside the valve core, and are connected to the valve core inlets and the valve core outlets one by one.

[0048] Furthermore, a rear valve body 22 and a front valve body 23 are respectively installed on the rear section and the front section of the valve core. The valve core 21 passes through the rear valve body 22 and the front valve body 23, and is disposed within the rear and front valve bodies. The rear valve body 22 passes through the valve core 21 and is fitted onto the rear section of the valve core 21, while the front valve body 23 passes through the valve core 21 and is fitted onto the front section of the valve core 21.

[0049] The working principle of this utility model is as follows:

[0050] The power unit drives the valve core 21 to rotate, which in turn drives the front valve body 23 to rotate within the rear valve body 22, while the rear valve body 22 remains stationary. The paint enters / flows into the rear valve body 22, then flows through several valve core inlets 211 into several flow channels 213 inside the valve core, and then flows out from several valve core outlets 212. Finally, it exits / flows out through the front valve body 23. Finally, it is sprayed sequentially through the metal pipe and nozzle mounted on the connector 3, thus rotating and spraying the paint onto the inner wall of the pipe, performing a coating treatment on the inner wall.

[0051] Therefore, further, such as Figure 2 and Figure 5 As shown, the rear valve body 22 is fixed to the outer side / front end of the transition plate 15 by bolts (i.e., Figure 1 On the right side of the right connecting plate 122, the transition plate 15 is fixed to the front end of the right connecting plate 122 via several columns 14. Both the right connecting plate 122 and the transition plate 15 have openings in the middle to connect the rotating shaft at the front end of the power unit to the rotating shaft rod at the rear end of the valve core. For example, Figure 5 As shown, in one embodiment, a plurality of columns 14 are provided with central openings to form hollow columns. Bolts pass sequentially from the rear end of the right connecting plate 122 through the right connecting plate 122 and the columns 14, and engage with the threaded holes on the inner side / rear end of the transition plate 15 to achieve a fixed connection between the right connecting plate 122, the hollow columns 14 and the transition plate 15.

[0052] Furthermore, such as Figure 1 , Figure 2 and Figure 5 As shown, the outer shell 11 encloses the left connecting plate 121 and the transition plate 15, and encloses and hides the right connecting plate 122 and several columns 14 inside it.

[0053] Furthermore, such as Figure 5 As shown, in order to enable the valve core 21 to rotate quickly and stably in the rear valve body 22, the valve core 21 and the rear valve body 22 are rotatably connected by one or more ball bearings.

[0054] Preferably, in one embodiment, such as Figure 5As shown, ball bearings 24 are regularly arranged at both ends of the rear valve body 22. The ball bearings 24 are installed and fixed in the bearing slots at both ends of the rear valve body 22. The valve core 21 passes through the inner ring of the ball bearing 24 and the rear valve body 22 in sequence, and is driven by the power device to rotate at high speed in the rear valve body 22 and the ball bearings 24.

[0055] Furthermore, the front valve body 23 is fixed to the front section of the valve core 21 by bolts, and the valve core 21 drives the front valve body 23 to rotate together.

[0056] like Figure 2 and Figure 5 As shown, at least two sets of valve core inlets 211 and valve core outlets 212 are provided in the rear and front sections of valve core 21. When two sets are provided, a dual-channel spray valve can be formed. In one embodiment, as... Figure 5 As shown, three sets of valve core inlets 211 and valve core outlets 212 are respectively provided to form a three-channel spray valve.

[0057] The following example uses a three-channel spray valve, which includes three valve core inlets, three flow channels, and three valve core outlets.

[0058] In this invention, a power unit drives the valve core 21 to rotate at high speed in the rear valve body 22. Therefore, several material inlet areas are formed between several valve core inlets 211 and the inner wall of the rear valve body 22 along its radial direction. In order to allow the sprayed paint to enter the valve core, several rear valve body interfaces are regularly arranged on the rear valve body 22 at several valve core inlet rotation positions (i.e., material inlet areas), and the several rear valve body interfaces are arranged sequentially front and back.

[0059] like Figure 6 As shown, the three valve core inlets 211 are staggered at the rear section of the valve core, forming valve core A inlet 2111, valve core B inlet 2112, and valve core C inlet 2113 respectively. Correspondingly, at the rotational positions of valve core A inlet 2111, valve core B inlet 2112, and valve core C inlet 2113, the rear valve body 22 is provided with a rear valve body A interface 2201 and a rear valve body B interface 2202 (e.g., ...) at the rear and rear positions respectively. Figure 3 (as shown in the diagram) and rear valve body C interface 2203. Rear valve body A interface 2201, rear valve body B interface 2202 and rear valve body C interface 2203 are used to install and fix pipeline joints, which are later connected to three material tanks through pipelines, thereby conveying three types of spray coatings into the valve core 21.

[0060] Furthermore, three valve core outlets 212 are also arranged front and rear at the front section of the valve core, forming valve core A outlet 2121, valve core B outlet 2122, and valve core C outlet 2123 respectively. Correspondingly, at the positions of valve core A outlet 2121, valve core B outlet 2122, and valve core C outlet 2123, the front valve body 23 is provided with a front valve body A interface 2301, a front valve body B interface 2302, and a front valve body C interface 2303 respectively, which are staggered front and rear.

[0061] Furthermore, such as Figure 6 As shown, in one embodiment, the front valve body A interface 2301 and the front valve body C interface 2303 are arranged one after the other and regularly arranged on the side of the front valve body 23, while the front valve body B interface 2302 is regularly arranged on the front end of the front valve body 23.

[0062] This utility model takes a three-channel spraying device as an example, and its working principle is as follows:

[0063] The rear valve body 22 can be connected to three material tanks via pipe joints, thereby conveying three types of spray coatings. The front valve body 23 can be connected to three nozzles via pipe joints and pipes, outputting the three types of spray coatings. The three rear valve body interfaces (AC), the three valve core flow channels, and the three front valve body interfaces (AC) form three channels (channel A, channel B, and channel C). When material is conveyed into one of the channels, such as when spray coating is conveyed into channel A, the spray coating passes sequentially through the rear valve body A interface 2201, valve core A inlet 2111, flow channel, valve core A outlet 2121, and front valve body A interface 2301, and is then sprayed out by the nozzle installed on the front valve body A interface 2301, spraying the inner wall of the pipe.

[0064] Furthermore, when the coating material is conveyed in at least two of channels A, B, and C, the material can be sequentially sprayed out from the corresponding nozzles in a rotating manner. Therefore, when all three channels are open simultaneously, the coating can be applied to the inner wall of the pipe at the same time, achieving a mixing process on the inner wall. When the three channels are opened sequentially, the coating can be applied to the inner wall of the pipe in sequence, allowing for multi-layer coating without the need to replace or clean other components, thus greatly improving the coating efficiency of the inner wall of the pipe.

[0065] In practical use, when only part of the channel needs to be used, the unused channel can be disconnected from the unused port on the rear valve body 22 to cut off the flow of fluid; or the front valve body port on the front valve body 23 can be sealed with a sealing plug.

[0066] Furthermore, such as Figure 5As shown, the valve core 21 rotates at high speed within the rear valve body 22 to prevent leakage of the sprayed paint and to avoid cross-contamination caused by material leakage from several valve core inlets 211 and flow channels 213. Piston seals 25 are regularly arranged between the rear valve body 22 and the valve core 21, on both the front and rear sides of the valve core inlet 211. These piston seals 25 seal and isolate several valve core inlets.

[0067] Correspondingly, the valve core 21 and the front valve body 23 are also sealed and isolated by several piston seals 25 to seal and isolate several valve core outlets.

[0068] Furthermore, to facilitate the fixing of the ball bearing 24 at the front end of the rear valve body 22, a baffle 26 is regularly provided between the rear valve body 22 and the front valve body 23. The baffle 26 can both isolate the rear valve body 22 and the front valve body 23 so that they do not interfere with each other during operation, and can also firmly fix the ball bearing 24 at the front end of the rear valve body 22 in the front end slot of the rear valve body 22.

[0069] Furthermore, to facilitate the connection between several valve core inlets 211 and several valve core outlets 212, several flow channels 213 are provided with holes drilled from the front / right end of the valve core 21, and the holes at the front end are sealed by sealing plugs 27. The sealing plugs 27 can both seal the open ends of the flow channels and facilitate the removal of the sealing plugs for cleaning of the flow channels.

[0070] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multi-channel spraying device, characterized in that: Includes a housing (1), a power unit, a multi-port spray valve (2), and several connectors (3). The power unit is installed and fixed inside the housing as the driving device for the multi-way spraying valve (2), driving the multi-way spraying valve to rotate at high speed. The multi-way spraying valve (2) is installed and fixed outside the housing as the channel switching mechanism for the spraying material. The connector is installed and fixed on the valve body of the multi-way spraying valve (2) as the connection head between the multi-way spraying valve and the spraying pipeline. The multi-port spray valve (2) includes a valve core (21), a rear valve body (22), and a front valve body (23); The valve core (21) is regularly provided with a plurality of valve core inlets (211) and a plurality of valve core outlets (212), and the plurality of valve core inlets (211) and the plurality of valve core outlets (212) are connected to each other, forming a flow channel (213) inside the valve core (21). The plurality of valve core inlets (211) and the plurality of valve core outlets (212) are regularly provided at the rear and front sections of the valve core, respectively. The plurality of valve core inlets (211) are staggered front to back, and the plurality of valve core outlets (212) are regularly provided front to back. The rear valve body (22) is disposed at the rear section of the valve core (21), the valve core (21) passes through the rear valve body (22) and is rotatably connected thereto, the front valve body (23) is disposed at the front section of the valve core (21) and is fixedly connected thereto, the power device drives the valve core (21) to rotate at high speed in the rear valve body (22), and the valve core (21) drives the front valve body (23) to rotate at high speed in the rear valve body (22); The rear valve body (22) is regularly provided with a plurality of rear valve body interfaces at the rotation positions of a plurality of valve core inlets (211), and the connectors are installed thereon. The plurality of rear valve body interfaces are connected to the plurality of valve core inlets (211) one by one. The front valve body (23) has several front valve body interfaces regularly arranged at several valve core outlets (212) and the connectors are installed thereon. The several front valve body interfaces are connected to the several valve core outlets (212) one by one.

2. The multi-channel spraying device according to claim 1, characterized in that: The housing (1) includes an outer shell (11) as a side panel. Connecting plates (12) are respectively provided at the front and rear ends of the outer shell (11) to form left and right connecting plates. The left and right connecting plates are fixedly connected together by several connecting rods (13) to form the frame structure of the housing (1). The frame structure is surrounded by the side of the outer shell (11) to form the housing.

3. The multi-channel spraying device according to claim 2, characterized in that: The connecting plate (12) serves as the mounting plate for the power device. The power device is fixed to the inner side of the connecting plate by bolts and is regularly arranged inside the housing (1) after being surrounded by the outer shell (11).

4. The multi-channel spraying device according to claim 2, characterized in that: A transition plate (15) is fixedly installed on the outside of the connecting plate (12) by several columns (14). The transition plate (15) serves as the mounting plate for the rear valve body (22), and the rear valve body (22) is fixedly installed on the outside of the transition plate (15). Both the transition plate (15) and the connecting plate (12) connected thereto have through holes in the middle to facilitate the passage of the power device shaft.

5. A multi-channel spraying device according to claim 1, characterized in that: One or more ball bearings (24) are regularly arranged between the rear valve body (22) and the valve core (21). The ball bearings (24) are installed and fixed in the bearing slots at the front and rear ends of the rear valve body. The valve core (21) passes through the inner ring of the ball bearing and the rear valve body (22) in sequence, and rotates at high speed in the rear valve body (22) and the ball bearings (24).

6. A multi-channel spraying device according to claim 5, characterized in that: A baffle (26) is regularly arranged between the rear valve body (22) and the front valve body (23). The baffle (26) blocks the ball bearing in the front end slot of the rear valve body (22) and fixes it in the front end slot of the rear valve body (22).

7. A multi-channel spraying device according to claim 1, characterized in that: Between the rear valve body (22) and the valve core (21), piston seals (25) for sealing are regularly arranged on both the front and rear sides of several valve core inlets (211); between the front valve body (23) and the valve core (21), piston seals for sealing are also regularly arranged on both the front and rear sides of several valve core outlets (212).

8. A multi-channel spraying device according to claim 1, characterized in that: The power unit is an electric motor or a pneumatic motor.

9. A multi-channel spraying device according to any one of claims 1-8, characterized in that: The plurality of valve core inlets (211), plurality of valve core outlets (212) and plurality of flow channels (213) are respectively provided in three sets, forming a three-channel spraying device.

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