Forward flushing valve body structure of watering cart

Abstract

The forward flushing valve body structure comprises a first pipeline, a second pipeline is arranged in the middle of the first pipeline, the outer side of the top end of the second pipeline is sleeved with a first sealing cover in a threaded mode, and the outer side of the bottom end of the second pipeline is sleeved with a second sealing cover in a threaded mode. According to the forward flushing valve body structure of the watering cart, high-pressure gas can be conveyed into the top end of a second pipeline by communicating a high-pressure gas inlet pipe, and then a spring is compressed while a valve element is pushed by the high-pressure gas to move, so that a first water inlet and a second water inlet can communicate with each other; by starting a second air pipe, high-pressure air in a second pipeline can be exhausted to the outer side through the second air pipe, at the moment, the valve element can be driven to reset through the elastic acting force of a spring, and therefore the first water inlet and the second water inlet are staggered, and by means of the structure, opening and closing of the valve body structure can be automatically achieved; and the use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of sprinkler trucks, and specifically discloses a front flushing valve body structure of a sprinkler truck. Background Technique

[0002] A sprinkler truck uses the power of its own engine to drive a vehicle-mounted sprinkler pump through a power take-off, adds water to the vehicle from a water inlet, or conveys the water in the tank to each nozzle through a pipeline, so as to achieve various functions.

[0003] The existing stainless steel ball valve installed between the front flushing nozzle and the water delivery pipeline cannot be automatically opened and closed, and needs to be manually opened and closed, which is very inconvenient to use. Content of the Utility Model

[0004] In view of the above-mentioned defects or deficiencies in the prior art, the present application aims to provide a front flushing valve body structure of a sprinkler truck, including a first pipeline, a second pipeline is arranged in the middle of the first pipeline, a first sealing cover is threadedly sleeved on the outer side of the top end of the second pipeline, and a second sealing cover is threadedly sleeved on the outer side of the bottom end of the second pipeline. A fixing frame located below the first sealing cover is fixedly sleeved on the outer side of the top end of the second pipeline. An electromagnetic valve is fixedly installed on the top of the fixing frame. A first air pipe is communicated with the top of the first sealing cover. The first air pipe is communicated with a high-pressure air inlet pipe through a rotary joint. The outer side of the rotary joint is communicated with the electromagnetic valve through a second air pipe. A valve core is movably sleeved in the second pipeline. A guide post is sleeved inside the bottom end of the valve core. A limit disk sleeved inside the bottom end of the second pipeline is arranged at the bottom of the guide post. A spring located between the valve core and the limit disk is sleeved on the outer side of the guide post. A first water inlet is opened in the second pipeline. A second water inlet located above the first water inlet is opened in the valve core.

[0005] Preferably, a snap ring located above the valve core is clamped inside the top end of the second pipeline.

[0006] Preferably, a sealing ring sleeved inside the second pipeline is sleeved on the outer side of the top end of the valve core.

[0007] Preferably, a first limit boss adapted to the valve core is arranged on the outer side of the guide post, and a second limit boss adapted to the second pipeline is arranged on the outer side of the limit disk. Beneficial Effects

[0008] 1. The forward valve body structure of the sprinkler truck connects the high-pressure air inlet pipe so that the high-pressure gas can be transported to the inside of the top of the second pipe, and then the high-pressure gas pushes the valve core to move and compresses the spring at the same time, so that the first water inlet and the second water inlet can be connected, and the high-pressure gas inside the second pipe can be discharged to the outside through the second air pipe by starting the second air pipe. At this time, the elastic force of the spring can drive the valve core to reset, so that the first water inlet and the second water inlet are staggered. This structure can automatically realize the opening and closing of the valve body structure, which is more convenient to use.

[0009] 2. The forward valve body structure of the sprinkler truck can limit the guide column and guide the valve core at the same time through the cooperation of the first limiting boss and the second limiting boss, so that the valve core will not rotate during the movement, and then the second water inlet can face the first water inlet when the valve body structure is opened, thereby ensuring that the water inside the first pipe can flow through the first water inlet and the second water inlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

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

[0012] Figure 2 It is a partial cross-sectional view of the structure of the utility model;

[0013] Figure 3 is a schematic diagram of the first pipeline of the utility model;

[0014] Figure 4 It is a schematic diagram of the valve core of the utility model;

[0015] Figure 5 It is the installation schematic diagram of the structure of the utility model.

[0016] In the figure: 1. first pipeline; 2. second pipeline; 3. first sealing cover; 4. second sealing cover; 5. fixing bracket; 6. solenoid valve; 7. first air pipe; 8. transfer pipe; 9. high-pressure air inlet pipe; 10. second air pipe; 11. valve core; 12. guide column; 13. limit plate; 14. spring; 15. first water inlet; 16. second water inlet; 17. retaining ring; 18. sealing ring; 19. first limit boss; 20. second limit boss. DETAILED DESCRIPTION

[0017] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the relevant utility model and do not limit the utility model. In addition, it should be noted that for the convenience of description, only the parts related to the utility model are shown in the drawings.

[0018] In the accompanying drawings of the embodiments of the present utility model: Different types of hatching lines in the drawings are not marked according to the national standard, nor are the materials of the components required. It is to distinguish the cross-sectional views of the components in the drawings.

[0019] Please refer to Figures 1-5 , a front-flushing valve body structure of a sprinkler truck, including a first pipe 1. A second pipe 2 is arranged in the middle of the first pipe 1. A first sealing cover 3 is threadedly sleeved on the outer side of the top end of the second pipe 2, and a second sealing cover 4 is threadedly sleeved on the outer side of the bottom end of the second pipe 2. A fixing frame 5 is fixedly sleeved on the outer side of the top end of the second pipe 2 and is located below the first sealing cover 3. An electromagnetic valve 6 is fixedly installed on the top of the fixing frame 5. A first air pipe 7 communicates with the top of the first sealing cover 3. The first air pipe 7 communicates with a high-pressure air inlet pipe 9 through a rotary joint 8. The outer side of the rotary joint 8 is connected to the electromagnetic valve 6 through a second air pipe 10. The channel of the second air pipe 10 can be opened by the drive of the electromagnetic valve 6, so that the high-pressure gas stored inside the second pipe 2 can be discharged outward through the second air pipe 10. A valve core 11 is movably sleeved inside the second pipe 2. A guide post 12 is sleeved inside the bottom end of the valve core 11. A limit disc 13 sleeved inside the bottom end of the second pipe 2 is arranged at the bottom of the guide post 12. A spring 14 is sleeved on the outer side of the guide post 12 and is located between the valve core 11 and the limit disc 13. The elastic force of the spring 14 can drive the valve core 11 to reset and at the same time misalign the first water inlet 15 and the second water inlet 16, so as to disconnect the channel between the first pipe 1 and the second pipe 2. A first water inlet 15 is opened inside the second pipe 2, and a second water inlet 16 located above the first water inlet 15 is opened inside the valve core 11. When the centers of the holes of the first water inlet 15 and the second water inlet 16 are collinear through the cooperation of the first water inlet 15 and the second water inlet 16, the water inside the water delivery pipe can be conveyed through the first pipe 1 to the front-flushing nozzle.

[0020] Among them, a snap ring 17 located above the valve core 11 is clamped inside the top end of the second pipe 2. The snap ring 17 can limit the valve core 11, so that the valve core 11 can move to a specified position under the elastic force of the spring 14, ensuring that the bottom of the valve core 11 can be located below the first water inlet 15, and then the bottom end of the valve core 11 can cut off the first water inlet 15.

[0021] Wherein, a sealing ring 18 sleeved on the outside of the top end of the valve core 11 is sleeved inside the second pipe 2. Through the sealing ring 18, the sealing performance between the valve core 11 and the second pipe 2 can be enhanced, so that high-pressure gas is not easy to leak into the inside of the first pipe 1, ensuring that the spring 14 can be compressed while the valve core 11 can move under the pressure of the high-pressure gas.

[0022] Wherein, a first limiting boss 19 adapted to the valve core 11 is arranged on the outside of the guide post 12, and a second limiting boss 20 adapted to the second pipe 2 is arranged on the outside of the limiting disc 13. The guide post 12 can be limited by the cooperation of the limiting disc 13 and the second limiting boss 20, so that the guide post 12 will not rotate or move. And the valve core 11 can be limited by the first limiting boss 19, so that the valve core 11 will not rotate during the moving process, ensuring that when the centers of the first water inlet 15 and the second water inlet 16 are collinear, there will be no dislocation between the first water inlet 15 and the second water inlet 16.

[0023] When the sprinkler truck is working, a high-pressure gas source communicated with the high-pressure air inlet pipe 9 is connected. The high-pressure gas is conveyed into the inside of the top end of the second pipe 2 through the adapter pipe 8. While the valve core 11 is pushed to move by the pressure generated by the high-pressure gas, the spring 14 is compressed. When the centers of the first water inlet 15 and the second water inlet 16 are collinear, the valve core 11 stops moving. At this time, the water inside the water conveying pipe can be conveyed to the front spray head through the first pipe 1. When the sprinkler truck does not need to perform the water spraying operation, the solenoid valve 6 is started, and the channel of the second air pipe 10 is opened by the drive of the solenoid valve 6, so that the high-pressure gas stored inside the second pipe 2 can be discharged to the outside of the second pipe 2 through the second air pipe 10. The valve core 11 is driven to reset by the elastic force of the spring 14 until the valve core 11 stops moving when it contacts the snap ring 17. At this time, the connection of the first water inlet 15 is cut off by the valve core 11. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0024] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will describe this application in detail with reference to the drawings and in combination with the embodiments.

[0025] The above description is only the preferred embodiment of this application and the explanation of the applied technical principle. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solution formed by the specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept of the utility model. For example, the technical solutions formed by mutually replacing the above features with the technical features (but not limited to) having similar functions disclosed in this application.

Claims

1. The front flushing valve body structure of a sprinkler truck, including a first pipeline (1), is characterized in that: A second pipe (2) is provided in the middle of the first pipe (1). A first sealing cover (3) is threadedly sleeved on the outer side of the top end of the second pipe (2), and a second sealing cover (4) is threadedly sleeved on the outer side of the bottom end of the second pipe (2). A fixing frame (5) located below the first sealing cover (3) is fixedly sleeved on the outer side of the top end of the second pipe (2). An electromagnetic valve (6) is fixedly installed on the top of the fixing frame (5). A first air pipe (7) communicates with the top of the first sealing cover (3). The first air pipe (7) communicates with a high-pressure air inlet pipe (9) through a rotary joint pipe (8). The outer side of the rotary joint pipe (8) is communicated with the electromagnetic valve (6) through a second air pipe (10). A valve core (11) is movably sleeved inside the second pipe (2). A guide post (12) is sleeved inside the bottom end of the valve core (11). A limit disc (13) sleeved inside the bottom end of the second pipe (2) is provided at the bottom of the guide post (12). A spring (14) located between the valve core (11) and the limit disc (13) is sleeved on the outer side of the guide post (12). A first water inlet (15) is opened inside the second pipe (2). A second water inlet (16) located above the first water inlet (15) is opened inside the valve core (11).

2. The front flushing valve body structure of a sprinkler according to claim 1, wherein: A snap ring (17) located above the valve core (11) is snap-fitted inside the top end of the second pipe (2).

3. The front flush valve body structure of a sprinkler according to claim 1, characterized in that: A sealing ring (18) sleeved inside the second pipe (2) is sleeved on the outer side of the top end of the valve core (11).

4. The front flushing valve body structure of a sprinkler according to claim 1, characterized in that: A first limit boss (19) adapted to the valve core (11) is provided on the outer side of the guide post (12). A second limit boss (20) adapted to the second pipe (2) is provided on the outer side of the limit disc (13).

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