Valve deflation conversion device

Abstract

The utility model discloses a valve deflation conversion device which comprises a first gas circuit and a second gas circuit and further comprises a deflation channel, a pull rod is coaxially arranged in the deflation channel, a deflation port is formed in the middle of the deflation channel, the first gas circuit and the second gas circuit are communicated with the two ends, at the deflation port, of the deflation channel respectively, and the first gas circuit and the second gas circuit are communicated with the first gas circuit and the second gas circuit respectively. A first sealing ring and a second sealing ring are fixedly arranged on the pull rod in a sleeved mode, the first sealing ring is arranged between the first gas circuit and the gas discharging port, and the second sealing ring is arranged between the second gas circuit and the gas discharging port. And the locking state is unlocked, so that reliable emergency operation is ensured.

Description

Technical Field

[0001] The present application relates to a valve structure, and in particular to a valve venting conversion device. Background Art

[0002] The bleed conversion device is a device used on pneumatic valves. It is a frequently used accessory in pneumatic components. It is suitable for pneumatic valves of three-position five-way center-sealed solenoid valves. The bleed conversion device allows the pneumatic actuator and the solenoid valve to be directly connected. If the installation space is limited and the connection cannot be smooth, the bleed conversion device can customize the conversion port according to actual needs, so as to facilitate the operator to use and maintain the equipment. It is used in the case of loss of air source and the inability to operate the valve in an emergency. Utility Model Content

[0003] The utility model aims to provide a valve deflation conversion device, which can be used in the case where the air source is lost and the valve cannot be operated urgently.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions.

[0005] The embodiment of the present application discloses a valve deflation conversion device, comprising a first air circuit and a second air circuit, and also comprising a deflation channel, wherein a pull rod is coaxially arranged in the deflation channel, a deflation port is formed in the middle of the deflation channel, the first air circuit and the second air circuit are respectively connected to the deflation channel at both ends of the deflation port, a first sealing ring and a second sealing ring are fixedly sleeved on the pull rod, the first sealing ring is arranged between the first air circuit and the deflation port, and the second sealing ring is arranged between the second air circuit and the deflation port,

[0006] When the pull rod is at position 1, the first sealing ring isolates the first gas path from the air vent, and the second sealing ring isolates the second gas path from the air vent;

[0007] When the pull rod is located at position two, the first sealing ring is located in the middle of the air vent, and the first air path and the second air path are simultaneously connected to the air vent.

[0008] Preferably, in the above-mentioned valve deflation conversion device, when the pull rod is located at position three, the first sealing ring isolates the first air path from the deflation port, and the second air path is connected to the deflation port.

[0009] Preferably, in the above-mentioned valve deflation conversion device, when the pull rod is located at position four, the second sealing ring isolates the second air path from the deflation port, and the first air path is connected to the deflation port.

[0010] Preferably, in the above-mentioned valve deflation conversion device, a limiting screw is provided on the deflation channel.

[0011] Preferably, in the above-mentioned valve deflation conversion device, a handle is provided on the right side of the pull rod, and a third sealing ring is provided on the upper fixed sleeve of the pull rod, and the third sealing ring is located between the second air path and the handle.

[0012] Preferably, in the above-mentioned valve deflation conversion device, the first air path is connected to the first cylinder and the second cylinder.

[0013] Preferably, in the above-mentioned valve air release conversion device, the second air path is connected to the third cylinder and the fourth cylinder.

[0014] Compared with the prior art, the advantage of this technical solution is that the gas in the cylinder can be quickly released in a short time, the locked state can be released, and reliable emergency operation can be ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 Shown is a schematic diagram of a valve deflation conversion device in an embodiment of the utility model. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to describe the technical solutions in the embodiments of the utility model in detail. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] Combination Figure 1As shown, the valve deflation conversion device 100 includes a first gas circuit 101 and a second gas circuit 102, and also includes a deflation channel 103. A pull rod 104 is coaxially arranged in the deflation channel 103, and a deflation port 105 is formed in the middle of the deflation channel 103. The first gas circuit 101 and the second gas circuit 102 are respectively connected to the two ends of the deflation channel 103 at the deflation port 105. A first sealing ring 106 and a second sealing ring 107 are fixedly sleeved on the pull rod 104. The first sealing ring 106 is arranged between the first gas circuit 101 and the deflation port 105, and the second sealing ring 107 is arranged between the second gas circuit 102 and the deflation port 105.

[0019] When the pull rod 104 is at position 1, the first sealing ring 106 isolates the first gas path 101 from the gas release port 105, and the second sealing ring 107 isolates the second gas path 102 from the gas release port 105;

[0020] When the pull rod 104 is located at position two, the first sealing ring 106 is located in the middle of the air release port 105 , and the first air path 101 and the second air path 102 are simultaneously connected to the air release port 105 .

[0021] In this embodiment, position one is a normal sealing position. When deflation is required in an emergency, the pull rod is pulled to position two, at which time the air in the two air paths can be deflated.

[0022] Furthermore, when the pull rod 104 is at position three, the first sealing ring 106 isolates the first gas path 101 from the venting port 105, and the second gas path 102 is connected to the venting port 105. When the pull rod 104 is at position four, the second sealing ring 107 isolates the second gas path 102 from the venting port 105, and the first gas path 101 is connected to the venting port 105.

[0023] In this embodiment, the technical solution is an improved technical solution, which can release one gas path separately while maintaining the other gas path.

[0024] Furthermore, a limit screw 108 is provided on the air release channel 103 .

[0025] In this embodiment, danger of excessive displacement is prevented.

[0026] Furthermore, a handle 109 is provided on the right side of the pull rod 104 , and a third sealing ring 110 is provided on the upper fixed sleeve of the pull rod 104 . The third sealing ring 110 is located between the second air path 102 and the handle 109 .

[0027] In this embodiment, possible air leakage at the handle is sealed.

[0028] Furthermore, the first gas path 101 is connected to the first cylinder and the second cylinder, and the second gas path 102 is connected to the third cylinder and the fourth cylinder.

[0029] In this embodiment, for different cylinders ( Figure 1 (center circle part).

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0031] The above is only a specific implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A valve deflation conversion device, characterized in that: The invention comprises a first gas circuit and a second gas circuit, and also comprises an air release channel, wherein a pull rod is coaxially arranged in the air release channel, and an air release port is formed in the middle of the air release channel, wherein the first gas circuit and the second gas circuit are respectively connected to the air release channel at both ends of the air release port, and a first sealing ring and a second sealing ring are fixedly sleeved on the pull rod, wherein the first sealing ring is arranged between the first gas circuit and the air release port, and the second sealing ring is arranged between the second gas circuit and the air release port, When the pull rod is at position 1, the first sealing ring isolates the first gas path from the air vent, and the second sealing ring isolates the second gas path from the air vent; When the pull rod is located at position two, the first sealing ring is located in the middle of the air vent, and the first air path and the second air path are simultaneously connected to the air vent.

2. The valve venting conversion device according to claim 1, characterized in that: When the pull rod is located at position three, the first sealing ring isolates the first air path from the air vent, and the second air path is connected to the air vent.

3. The valve venting conversion device according to claim 1, characterized in that: When the pull rod is located at position four, the second sealing ring isolates the second air path from the air vent, and the first air path is connected to the air vent.

4. The valve venting conversion device according to claim 1, characterized in that: A limiting screw is arranged on the air release passage.

5. The valve venting conversion device according to claim 1, characterized in that: A handle is arranged on the right side of the pull rod, and a third sealing ring is arranged on the upper fixing sleeve of the pull rod, and the third sealing ring is located between the second air path and the handle.

6. The valve venting conversion device according to claim 1, characterized in that: The first gas path is connected to the first cylinder and the second cylinder.

7. The valve venting conversion device according to claim 1, characterized in that: The second gas path is connected to the third cylinder and the fourth cylinder.

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