Liquid pneumatic double-channel joint

Abstract

The utility model discloses a liquid pneumatic double-channel joint, which relates to the technical field of gas-liquid joints, and comprises a control valve body and a needle valve, and the needle valve is inserted into one end of the control valve body; a control channel matched with the needle valve is formed in the top of the control valve body, a leakage channel used for discharging gas and liquid in the control valve body is formed in the top of the control valve body matched with the control channel, and an input channel used for inputting gas and liquid is formed in the bottom of the control valve body; the control channel, the leakage channel and the input channel are all communicated with the needle valve; an output channel is arranged between the needle valve and the output end of the control valve body, the input end and the output end of the control valve body are fixedly connected with single-channel air pipe joints, and the outer ends of the single-channel air pipe joints are fixedly connected with pressing pipe sleeves used for sealing. And quick-plug connectors are inserted into the double-channel gas pipe connector and the control channel.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas -liquid joint technical field, concretely is liquid pneumatic double -pass joint. BACKGROUND

[0002] In many industrial control systems, especially in fluid control occasions, it is often necessary to use two different media of liquid and gas for control. For example, in a paint spraying device, liquid paint and compressed air often need to be sprayed through the same nozzle.

[0003] Currently, the control of liquid and gas usually adopts separate pipelines and control elements, which not only occupies a larger space, but also has a complex control process and high maintenance cost.

[0004] Existing solutions include using solenoid valves or manual valves to control the on-off of liquid and gas respectively, but these methods cannot achieve fast switching and are prone to failure.

[0005] The disadvantages of the prior art mainly include:

[0006] 1. Separate control elements result in complex system structure, difficult installation and maintenance.

[0007] 2. Unable to quickly respond to switching instructions, affecting work efficiency.

[0008] 3. Low reliability, prone to failure. INVENTION CONTENTS

[0009] The utility model aims at at least one of the technical problems existing in the prior art. To this end, the utility model provides a liquid pneumatic double-pass joint, which solves the problems raised in the above background technology.

[0010] To achieve the above purpose, the utility model provides a liquid pneumatic double-pass joint,

[0011] As a further scheme of the utility model:

[0012] The liquid pneumatic double-pass joint comprises a control valve body and a needle valve, one end of the control valve body is provided with the needle valve; the top of the control valve body is provided with a control channel matched with the needle valve, the top of the control valve body is provided with a leakage channel for discharging gas and liquid inside the control valve body matched with the control channel, and the bottom of the control valve body is provided with an input channel for inputting gas and liquid; the control channel, the leakage channel and the input channel are all communicated with the needle valve.

[0013] An output channel is arranged between the needle valve and the output end of the control valve body, the input and output ends of the control valve body are fixedly connected with single-channel air pipe joints, and the outer ends of the single-channel air pipe joints are fixedly connected with compression pipe sleeves for sealing;

[0014] The outer end of the compression pipe sleeve close to the output end of the control valve body is fixedly connected with a double-channel air pipe joint, and a quick plug connector is arranged in the double-channel air pipe joint and the control channel.

[0015] Further, the surface of the control valve body is provided with a fixing port for facilitating bolt fixing of the control valve body.

[0016] Further, the control valve cover is fixedly connected to the needle valve on the outer side of the control valve body.

[0017] Further, the control channel communicates the quick plug connector and the needle valve.

[0018] Further, the output channel communicates the single-channel air pipe joint and the needle valve.

[0019] Further, the input channel communicates the single-channel air pipe joint and the needle valve.

[0020] Further, the control valve cover is threadedly connected to the side wall of the control valve body.

[0021] Further, the double-channel air pipe joint comprises two input ports.

[0022] Compared with the prior art, the utility model has the beneficial effects that:

[0023] By arranging the control valve body, the needle valve, the output channel, the quick plug connector and the double-channel air pipe joint, one kind (usually liquid) of input liquid or gas in the control valve body is controlled, the output channel is reserved with an output port, and the unused output port can be plugged by using a plug. Liquid is input through the input port at the same axis of the port, and gas is input through the input port with the quick plug connector, and the air pipe interval in the double-channel air pipe joint cannot cause mixing, so that the simultaneous output of gas and liquid is realized through one output port. BRIEF DESCRIPTION OF DRAWINGS

[0024] Fig. 1 It is an explosion schematic view of the utility model;

[0025] Fig. 2 It is a front schematic view of the utility model;

[0026] Fig. 3 It is an internal structure schematic view of the utility model.

[0027] In the diagram: 1. Control valve body; 11. Fixed port; 12. Control channel; 13. Leakage channel; 14. Input channel; 15. Output channel; 2. Control valve cover; 3. Needle valve; 4. Quick-connect fitting; 5. Single-channel air pipe fitting; 6. Compression sleeve; 7. Double-channel air pipe fitting. Detailed Implementation

[0028] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] like Figs. 1-3 As shown, a liquid-pneumatic dual-channel connector includes a control valve body 1 and a needle valve 3. The needle valve 3 is inserted into one end of the control valve body 1. A control channel 12 is provided on the top of the control valve body 1 in conjunction with the needle valve 3. A leakage channel 13 for discharging gas and liquid from inside the control valve body 1 is also provided on the top of the control valve body 1 in conjunction with the control channel 12. An input channel 14 for inputting gas and liquid is provided on the bottom of the control valve body 1. The control channel 12, the leakage channel 13, and the input channel 14 are all connected to the needle valve 3.

[0030] An output channel 15 is provided between the needle valve 3 and the output end of the control valve body 1. A single-channel air pipe connector 5 is fixedly connected to both the input and output ends of the control valve body 1. A compression sleeve 6 for sealing is fixedly connected to the outer end of the single-channel air pipe connector 5.

[0031] A dual-channel air pipe connector 7 is fixedly connected to the outer end of the compression sleeve 6 near the output end of the control valve body 1; quick-connect connectors 4 are inserted into both the dual-channel air pipe connector 7 and the control channel 12.

[0032] More specifically, high-pressure gas passes through control channel 12, which is sealed by a sealing ring. It can only enter the valve through the pre-reserved channel on needle valve 3. The high-pressure gas compresses the spring in needle valve 3 through the channel, controlling the extension and retraction of the sealing needle in needle valve 3. Needle valve 3 outputs gas according to the opening and closing of the high-pressure gas inside control channel 12. Single-channel air pipe connector 5 allows the installation of two air pipes of different sizes, but only the air pipe with the smallest diameter has an output function. The smaller diameter air pipe is used by inserting the larger diameter air pipe inside the larger diameter air pipe. The smaller air pipe is the output pipe, and the larger air pipe is the protective pipe. When the smaller air pipe is not installed, the larger air pipe can also be used as an output pipe.

[0033] Preferably, the surface of the control valve body 1 is provided with a fixing port 11 for easy bolt fixing of the control valve body 1.

[0034] More specifically, the fixed port 11 reserves a fixed position, facilitating the use of bolts to fix the control valve body 1.

[0035] Preferably, the control valve cover 2 is fixedly connected to the needle valve 3 on the outside of the control valve body 1.

[0036] More specifically, the control valve cover 2 is used to fix the needle valve 3 in place.

[0037] Preferably, the control channel 12 communicates the quick connector 4 and the needle valve 3.

[0038] More specifically, the quick connector 4 is used to quickly connect the corresponding air pipe.

[0039] Preferably, the output channel 15 communicates the single-channel air pipe connector 5 and the needle valve 3.

[0040] More specifically, the input channel 14 is used for the input of gas or liquid (usually liquid).

[0041] Preferably, the input channel 14 communicates the single-channel air pipe connector 5 and the needle valve 3.

[0042] More specifically, the output gas or liquid input by the output channel 15 is output by the opening of the needle valve 3.

[0043] Preferably, the control valve cover 2 is threadedly connected to the side wall of the control valve body 1.

[0044] Preferably, the double-channel air pipe connector 7 includes two input ports.

[0045] More specifically, the double-channel air pipe connector 7 has two input ports, allowing input, and the input port at the same axis as the output port requires a gas pipe to be inserted from the input port and then from the output port, and the input port of the quick connector 4 only needs to connect the gas pipe to the input port, because the aperture of the input port at the same axis as the output port is only large enough for the gas pipe to pass through, and the aperture of the output port is larger, so that the output gas and liquid can only be output through the output port.

[0046] Working principle:

[0047] One of the input liquid or gas (usually liquid) in the control valve body 1 is output through the opening of the output channel 15, and the output channel 15 reserves three output ports, which can be plugged with plugs. The liquid and gas input double-channel air pipe connector, the liquid is input through the input port at the same axis as the output port, and the gas is input through the input port of the installed quick connector 4, and the gas pipe in the double-channel air pipe connector 7 is not mixed, achieving the simultaneous output of gas and liquid from one output port.

[0048] The above examples are only used to illustrate the technical method of the utility model and not to limit, although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the utility model can be modified or replaced equivalently without departing from the spirit and scope of the technical method of the utility model.

Claims

1. A liquid pneumatic two-way ported junction, characterized by, Including control valve body (1) and needle valve (3), one end of the control valve body (1) is inserted with the needle valve (3); the top of the control valve body (1) is matched with the control channel (12) opened with the needle valve (3), the top of the control valve body (1) is matched with the control channel (12) and is opened with the leakage channel (13) for discharging gas and liquid inside the control valve body (1), the bottom of the control valve body (1) is opened with the input channel (14) for inputting gas and liquid; the control channel (12) and the leakage channel (13) and the input channel (14) are all communicated with the needle valve (3); The output channel (15) is arranged between the needle valve (3) and the output end of the control valve body (1), the input and output ends of the control valve body (1) are fixedly connected with single-channel gas pipe joint (5), the outer ends of the single-channel gas pipe joint (5) are fixedly connected with the pressing pipe sleeve (6) for sealing; The outer end of the pressing pipe sleeve (6) close to the output end of the control valve body (1) is fixedly connected with the double-channel gas pipe joint (7); the double-channel gas pipe joint (7) and the control channel (12) are both inserted with the quick plug connector (4).

2. The fluidic pneumatic two-channel junction of claim 1, wherein, The surface of the control valve body (1) is provided with the fixed port (11) for facilitating the bolt fixation of the control valve body (1).

3. The liquid pneumatic two-channel junction of claim 2, wherein, The outer side of the control valve body (1) is fixedly connected with the control valve cover (2) matched with the needle valve (3).

4. The fluidic pneumatic two-channel junction of claim 3, wherein, The control channel (12) is communicated with the quick plug connector (4) and the needle valve (3).

5. The fluidic pneumatic two-channel junction of claim 4, wherein, The output channel (15) is communicated with the single-channel gas pipe joint (5) and the needle valve (3).

6. The fluidic pneumatic two-channel junction of claim 5, wherein, The input channel (14) is communicated with the single-channel gas pipe joint (5) and the needle valve (3).

7. The fluidic pneumatic two-channel junction of claim 6, wherein, The control valve cover (2) is threadedly connected with the side wall of the control valve body (1).

8. The fluidic pneumatic two-channel junction of claim 7, wherein, The double-channel gas pipe joint (7) comprises two input ports.

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