Drainage pneumatic door control assembly

Abstract

The utility model relates to a drainage pneumatic door control assembly which comprises a drainage pneumatic door, a balance valve and an air source, the balance valve and the drainage pneumatic door are detachably connected through a quick-release connector assembly, and the balance valve and the air source are detachably connected through a quick-release connector assembly; the quick-release connector assembly comprises a first connector, a second connector and a locking mechanism, a first flow channel is formed in the first connector, an insertion hole communicated with the first flow channel is formed in the first end of the first connector, a second flow channel is formed in the second connector, an insertion part is arranged at the first end of the second connector, and the locking mechanism is arranged on the insertion part. The first connector is provided with a first flow channel, the second connector is provided with a second flow channel, the inserting part is provided with a connecting hole communicated with the second flow channel, the inserting part is inserted into the inserting hole in a sealed mode so that the connecting hole can be communicated with the first flow channel, the locking mechanism is arranged on the first connector, and the locking mechanism is used for locking the inserting part in the inserting hole in an unlocking mode.

Description

Technical Field

[0001] The present disclosure relates to the technical field of high pressure heating systems in thermal power plants, and in particular to a hydrophobic pneumatic door control assembly. Background Art

[0002] The stable investment of high-pressure heating system plays an important role in energy saving and consumption reduction and improving power generation efficiency of power plants. When the water level of high-pressure heating is too high, steam and water may enter the steam turbine, endangering the safe operation of the steam turbine. The pneumatic drain valve is a valve installed in the high-pressure heating system to quickly discharge excessive condensate when the water level of high-pressure heating is too high. The opening or closing of the pneumatic drain valve is realized by the high-pressure gas provided by the gas source.

[0003] In the related technology, a balancing valve is usually connected between the hydrophobic pneumatic door and the air source. When the hydrophobic pneumatic door needs to be opened, the balancing valve opens to release pressure so as to speed up the pressure relief speed of the hydrophobic pneumatic door and increase the opening speed of the hydrophobic pneumatic door. When the hydrophobic pneumatic door does not need to be opened, the balancing valve closes to maintain pressure.

[0004] After long-term use, the balancing valve is prone to damage, which affects the normal opening and closing of the steam trap pneumatic valve. However, the connection structure of the existing balancing valve and the steam trap pneumatic valve and the connection structure of the balancing valve and the air source are usually connected together by nuts. When the balancing valve is damaged and needs to be repaired, multiple nuts need to be removed to disassemble the balancing valve, which wastes time and manpower, reduces the disassembly and assembly efficiency of the balancing valve, prolongs the downtime, and reduces the working efficiency of the steam trap pneumatic valve. Utility Model Content

[0005] The purpose of the present disclosure is to provide a hydrophobic pneumatic door control assembly to solve the technical problem of low disassembly and assembly efficiency of the balancing valve in the existing hydrophobic pneumatic door control assembly.

[0006] In order to achieve the above-mentioned objectives, the present disclosure provides a hydrophobic pneumatic door control assembly, comprising a hydrophobic pneumatic door, a balancing valve and an air source, wherein the balancing valve and the hydrophobic pneumatic door, and the balancing valve and the air source are detachably connected via a quick-release joint assembly; wherein the quick-release joint assembly comprises a first joint, a second joint and a locking mechanism, a first flow channel is arranged in the first joint, a first end of the first joint is arranged with a plug hole connected to the first flow channel, a second flow channel is arranged in the second joint, a plug-in portion is arranged at the first end of the second joint, the plug-in portion is arranged with a connecting hole connected to the second flow channel, the plug-in portion is sealingly plugged into the plug-in hole so that the connecting hole is connected to the first flow channel, and the locking mechanism is arranged on the first joint, and the locking mechanism is used to unlockably lock the plug-in portion in the plug hole.

[0007] Optionally, the outer wall of the plug-in part is provided with a first sealing layer, which is pressed between the plug-in part and the plug-in hole to seal the gap between the outer wall of the plug-in part and the hole wall of the plug-in hole; and / or, the inner wall of the plug-in hole is provided with a second sealing layer, which is pressed between the plug-in part and the plug-in hole to seal the gap between the outer wall of the plug-in part and the hole wall of the plug-in hole.

[0008] Optionally, an annular table surface is formed on the outer peripheral wall of the plug-in portion, and the annular table surface is suitable for sealingly connecting with the first end of the first joint.

[0009] Optionally, the annular table is provided with a first annular sealing gasket, which is suitable for sealing between the annular table and the first end of the first joint, and / or the first end of the first joint is provided with a second annular sealing gasket, which is suitable for sealing between the annular table and the first end of the first joint.

[0010] Optionally, the locking mechanism includes a first mounting portion and a locking piece, the first mounting portion is fixed to the outer wall of the first joint, the locking piece is slidably connected to the first mounting portion along the radial direction of the first joint, the second joint or the plug-in portion is provided with a locking groove, and the first end of the locking piece can be unlocked and locked in the locking groove.

[0011] Optionally, the locking mechanism also includes a second mounting portion, the first mounting portion is provided with a positioning groove opening toward the second mounting portion, one end of the second mounting portion is fixed to the outer wall of the second joint, the other end of the second mounting portion is suitable for being inserted into the positioning groove, and the locking groove is provided on the second mounting portion.

[0012] Optionally, the locking mechanism also includes an elastic member, the first mounting portion is provided with a mounting hole, the locking member is slidably connected to the mounting hole, the two ends of the elastic member are respectively connected to the first mounting portion and the locking member, and the elastic member is configured to drive the first end of the locking member to be inserted into the locking groove.

[0013] Optionally, a pull ring is provided at the second end of the locking member, and the pull ring is located outside the mounting hole.

[0014] Optionally, the locking member includes a locking rod and a locking portion fixed to one end of the locking rod, the locking rod is slidably connected to the mounting hole, the locking portion is suitable for being inserted into the locking groove, the elastic member is a spring, the spring is sleeved outside the locking rod, and the two ends of the spring are respectively abutted and fixed to the locking portion and the first mounting portion.

[0015] Optionally, the two ends of the balancing valve are respectively connected to a first pipe and a second pipe, the quick-release joint assembly is arranged between an end of the first pipe away from the balancing valve and the air vent of the hydrophobic pneumatic door, another quick-release joint assembly is arranged between an end of the second pipe away from the balancing valve and the air supply port of the air source, and a quick exhaust valve is also connected between the first pipe and the second pipe.

[0016] Through the above technical scheme, in the quick-release connector assembly arranged between the balancing valve and the hydrophobic pneumatic door, the second end of the first connector can be connected to the air vent of the hydrophobic pneumatic door, the second end of the second connector can be connected to the first air port of the balancing valve, the plug-in portion of the first end of the second connector can be plugged into the plug-in hole of the first end of the first connector, and the plug-in portion is locked in the plug-in hole by the locking structure, so that the balancing valve and the hydrophobic pneumatic door are connected and conducted through the quick-release connector assembly. In the quick-release connector assembly arranged between the balancing valve and the air source, the second end of the first connector can be connected to the air supply port of the air source, the second end of the second connector can be connected to the second air port of the balancing valve, the plug-in portion of the first end of the second connector can be plugged into the plug-in hole of the first end of the first connector, and the plug-in portion is locked in the plug-in hole by the locking structure, so that the balancing valve and the air source are connected and conducted through the quick-release connector assembly. When the balancing valve needs to be disassembled, the locking mechanisms in the two quick-release joint assemblies can be unlocked, and the balancing valve can be disassembled from the hydrophobic pneumatic door control assembly by separating the first joint and the second joint in the quick-release joint assembly provided between the balancing valve and the hydrophobic pneumatic door, and separating the first joint and the second joint in the quick-release joint assembly provided between the balancing valve and the air source, so as to facilitate replacement of the balancing valve. After the replacement is completed, the first joint can be connected to the second joint to achieve communication between the hydrophobic pneumatic door, the balancing valve and the air source.

[0017] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0019] Figure 1 is a schematic diagram of the connection structure of a hydrophobic pneumatic door control assembly provided by an exemplary embodiment of the present disclosure;

[0020] Figure 2 is a structural schematic diagram of a quick-release connector assembly provided by an exemplary embodiment of the present disclosure;

[0021] Figure 3 yes Figure 2 A schematic cross-sectional structure diagram of ;

[0022] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0023] Description of Reference Numerals

[0024] 10-drain pneumatic door; 20-balance valve; 30-air source; 40-quick-release connector assembly; 50-first pipeline; 60-second pipeline; 70-third pipeline; 80-quick exhaust valve;

[0025] 100 - first joint; 101 - first flow channel; 110 - plug hole; 120 - second sealing layer; 130 - second annular sealing gasket;

[0026] 200 - second joint; 201 - second flow channel; 210 - plug-in portion; 211 - connection hole; 220 - first sealing layer; 230 - annular table; 240 - first annular sealing gasket;

[0027] 300-locking mechanism; 310-first mounting portion; 311-positioning groove; 320-locking member; 321-locking rod; 322-locking portion; 330-second mounting portion; 331-locking groove; 340-elastic member; 350-pull ring. DETAILED DESCRIPTION

[0028] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0029] In the description of the present disclosure, it is to be understood that the terms "inside" and "outside" refer to the inside and outside of the corresponding structural contour. In addition, the terms "first", "second", etc. are only used to distinguish one element from another element, and have no order or importance.

[0030] In the description of the present disclosure, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "connected", and "installed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0031] like Figures 1 to 4 As shown, the present disclosure provides a hydrophobic pneumatic door 10 control assembly, including the hydrophobic pneumatic door 10, a balancing valve 20 and an air source 30, wherein the balancing valve 20 and the hydrophobic pneumatic door 10 as well as the balancing valve 20 and the air source 30 are detachably connected via a quick-release connector assembly 40;

[0032] Among them, the quick-release connector assembly 40 includes a first connector 100, a second connector 200 and a locking mechanism 300. A first flow channel 101 is arranged in the first connector 100, and a plug-in hole 110 connected to the first flow channel 101 is arranged at the first end of the first connector 100. A second flow channel 201 is arranged in the second connector 200, and a plug-in portion 210 is arranged at the first end of the second connector 200. The plug-in portion 210 is provided with a connecting hole 211 connected to the second flow channel 201. The plug-in portion 210 is sealed and plugged into the plug-in hole 110 so that the connecting hole 211 is connected to the first flow channel 101. The locking mechanism 300 is arranged in the first connector 100, and the locking mechanism 300 is used to unlockably lock the plug-in portion 210 in the plug-in hole 110.

[0033] Through the above technical scheme, in the quick-release joint assembly 40 arranged between the balancing valve 20 and the hydrophobic pneumatic door 10, the second end of the first joint 100 can be connected to the air vent of the hydrophobic pneumatic door 10, the second end of the second joint 200 can be connected to the first air port of the balancing valve 20, the plug-in portion 210 of the first end of the second joint 200 can be plugged into the plug-in hole 110 of the first end of the first joint 100, and the plug-in portion 210 can be locked in the plug-in hole 110 through the locking structure, so as to realize the connection and conduction between the balancing valve 20 and the hydrophobic pneumatic door 10 through the quick-release joint assembly 40. In the quick-release connector assembly 40 arranged between the balancing valve 20 and the gas source 30, the second end of the first connector 100 can be connected to the gas supply port of the gas source 30, and the second end of the second connector 200 can be connected to the second gas port of the balancing valve 20. The plug-in portion 210 at the first end of the second connector 200 can be plugged into the plug-in hole 110 at the first end of the first connector 100, and the plug-in portion 210 can be locked in the plug-in hole 110 through a locking structure, thereby realizing connection and conduction between the balancing valve 20 and the gas source 30 through the quick-release connector assembly 40. When the balancing valve 20 needs to be disassembled, the locking mechanism 300 in the two quick-release joint assemblies 40 can be unlocked, and the first joint 100 and the second joint 200 in the quick-release joint assembly 40 provided between the balancing valve 20 and the hydrophobic pneumatic door 10 can be separated, and the first joint 100 and the second joint 200 in the quick-release joint assembly 40 provided between the balancing valve 20 and the air source 30 can be separated to realize the disassembly of the balancing valve 20 from the control assembly of the hydrophobic pneumatic door 10, so as to facilitate the replacement of the balancing valve 20. After the replacement is completed, the first joint 100 can be connected with the second joint 200 to realize the communication between the hydrophobic pneumatic door 10 and the balancing valve 20 and the air source 30.

[0034] like Figure 3 and Figure 4As shown, in some optional embodiments, the outer wall of the plug-in part 210 is provided with a first sealing layer 220, and the first sealing layer 220 is pressed between the plug-in part 210 and the plug-in hole 110 to seal the gap between the outer wall of the plug-in part 210 and the hole wall of the plug-in hole 110; and / or, the inner wall of the plug-in hole 110 is provided with a second sealing layer 120, and the second sealing layer 120 is pressed between the plug-in part 210 and the plug-in hole 110 to seal the gap between the outer wall of the plug-in part 210 and the hole wall of the plug-in hole 110.

[0035] When the first sealing layer 220 is provided only on the outer wall of the plug-in portion 210, after the plug-in portion 210 is inserted into the plug-in hole 110, the first sealing layer 220 is pressed between the plug-in portion 210 and the plug-in hole 110 to improve the sealing between the plug-in portion 210 and the plug-in hole 110. When the second sealing layer 120 is provided only on the inner wall of the plug-in hole 110, after the plug-in portion 210 is inserted into the plug-in hole 110, the second sealing layer 120 is pressed between the plug-in portion 210 and the plug-in hole 110 to improve the sealing between the plug-in portion 210 and the plug-in hole 110. When the first sealing layer 220 is provided on the outer wall of the plug-in part 210 and the second sealing layer 120 is provided on the inner wall of the plug-in hole 110, after the plug-in part 210 is plugged into the plug-in hole 110, the first sealing layer 220 and the second sealing layer 120 contact and squeeze each other, so that the first sealing layer 220 and the second sealing layer 120 are simultaneously pressed between the plug-in part 210 and the plug-in hole 110, so as to further improve the sealing between the plug-in part 210 and the plug-in hole 110.

[0036] It should be noted that the first sealing layer 220 and the second sealing layer 120 are both made of elastic sealing materials, such as rubber, plastic, leather, etc.

[0037] like Figure 4 As shown, in order to further improve the sealing between the first connector 100 and the second connector 200 , in some optional embodiments, the outer peripheral wall of the plug-in portion 210 is formed with an annular table 230 , and the annular table 230 is suitable for sealingly connecting with the first end of the first connector 100 .

[0038] After the plug-in portion 210 is inserted into the plug-in hole 110 , the first end of the first connector 100 can abut against the annular table surface 230 to achieve sealing, so as to further improve the sealing performance after the first connector 100 is connected to the second connector 200 .

[0039] In some optional embodiments, the annular table 230 is provided with a first annular sealing gasket 240, which is suitable for sealing between the annular table 230 and the first end of the first joint 100, and / or the first end of the first joint 100 is provided with a second annular sealing gasket 130, which is suitable for sealing between the annular table 230 and the first end of the first joint 100.

[0040] When the annular table 230 is provided with a first annular sealing gasket 240, the first end of the first joint 100 can abut against the first annular sealing gasket 240, and the sealing between the first end of the first joint 100 and the annular table 230 is achieved by pressing the first annular sealing gasket 240, thereby improving the sealing between the first end of the first joint 100 and the annular table 230. When the first end of the first joint 100 is provided with a second annular sealing gasket 130, the annular table 230 can be pressed against the second annular sealing gasket 130 to further improve the sealing between the first end of the first joint 100 and the annular table 230. When the annular table 230 is provided with the first annular sealing gasket 240, the first end of the first joint 100 is provided with the second annular sealing gasket 130. The first annular sealing gasket 240 can be pressed against the second annular sealing gasket 130 to seal each other, thereby further improving the sealing between the first end of the first joint 100 and the annular table 230.

[0041] like Figure 3 and Figure 4 As shown, for the specific structure of the above-mentioned locking mechanism 300, in some optional embodiments, the locking mechanism 300 includes a first mounting portion 310 and a locking member 320, the first mounting portion 310 is fixed to the outer wall of the first connector 100, the locking member 320 is slidably connected to the first mounting portion 310 along the radial direction of the first connector 100, the second connector 200 or the plug-in portion 210 is provided with a locking groove 331, and the first end of the locking member 320 can be unlocked and locked in the locking groove 331.

[0042] Since the plug hole 110 is opened along the axial direction of the first connector 100, when the first connector 100 and the second connector 200 are connected, the plug part 210 is axially inserted into the plug hole 110. By inserting the locking member 320 into the locking groove 331, the locking member 320 can limit the axial movement of the first connector 100 and the second connector 200, thereby fixing the first connector 100 and the second connector 200 and preventing the plug part 210 from separating from the plug hole 110. At the same time, by sliding the locking member 320 on the first mounting portion 310, the locking member 320 can be quickly inserted into the locking groove 331 to lock the first connector 100 and the second connector 200, and the locking member 320 can quickly leave the locking groove 331 to unlock the first connector 100 and the second connector 200.

[0043] It should be noted that, in other embodiments, the locking structure may also include a bolt, and the first joint 100 and the second joint 200 are locked by threaded connection between the bolt and the second joint 200 .

[0044] like Figure 3 and Figure 4 As shown, in order to enable the locking member 320 to be inserted into the locking groove 331 more quickly, in some optional embodiments, the locking mechanism 300 also includes a second mounting portion 330, the first mounting portion 310 is provided with a positioning groove 311 opening toward the second mounting portion 330, one end of the second mounting portion 330 is fixed to the outer wall of the second joint 200, and the other end of the second mounting portion 330 is suitable for being inserted into the positioning groove 311, and the locking groove 331 is provided on the second mounting portion 330.

[0045] By setting a positioning groove 311 on the first mounting part 310 and setting a locking groove 331 on the second mounting part 330, after the second mounting part 330 is inserted into the positioning groove 311, the positioning groove 311 can guide and position the second mounting part 330, so that the locking groove 331 can be located exactly on the sliding path of the locking member 320, thereby realizing the fast insertion of the locking member 320 into the locking groove 331 to lock the first joint 100 and the second joint 200.

[0046] like Figure 4 As shown, in some optional embodiments, the locking mechanism 300 also includes an elastic member 340, the first mounting portion 310 is provided with a mounting hole, the locking member 320 is slidably connected to the mounting hole, and the two ends of the elastic member 340 are respectively connected to the first mounting portion 310 and the locking member 320, and the elastic member 340 is configured to drive the first end of the locking member 320 to be inserted into the locking groove 331.

[0047] The elastic force provided by the elastic member 340 can keep the locking member 320 inserted into the locking groove 331. When unlocking, the operator needs to overcome the elastic force of the elastic member 340 to pull the locking member 320 out of the locking groove 331. This can prevent the locking member 320 from accidentally detaching from the locking groove 331, which may cause the first connector 100 and the second connector 200 to be unstable.

[0048] It should be noted that the elastic member 340 can be a spring or a spring sheet.

[0049] In order to facilitate the operator to unlock the locking mechanism 300, in some optional embodiments, a pull ring 350 is provided at the second end of the locking member 320, and the pull ring 350 is located outside the mounting hole. The operator can pull the pull ring 350 to pull the locking member 320 out of the locking groove 331 to unlock the first connector 100 and the second connector 200.

[0050] like Figure 4 As shown, in some optional embodiments, the locking member 320 includes a locking rod 321 and a locking portion 322 fixed to one end of the locking rod 321, the locking rod 321 is slidably connected to the mounting hole, the locking portion 322 is suitable for being inserted into the locking groove 331, and the elastic member 340 is a spring, which is sleeved outside the locking rod 321, and the two ends of the spring are respectively abutted and fixed to the locking portion 322 and the first mounting portion 310. By using a spring as the elastic member 340 and sleeved on the locking rod 321, the deformation direction of the spring is the axial direction of the locking rod 321, thereby reducing the radial direction of the locking member 320 occupied by the deformation of the elastic member 340, which is conducive to the miniaturization of the locking mechanism 300 and makes the structure of the locking mechanism 300 more compact.

[0051] like Figure 1 As shown, in some optional embodiments, the two ends of the balancing valve 20 are respectively connected to a first pipe 50 and a second pipe 60, a quick-release connector assembly 40 is arranged between the end of the first pipe 50 away from the balancing valve 20 and the air vent of the hydrophobic pneumatic door 10, another quick-release connector assembly 40 is arranged between the end of the second pipe 60 away from the balancing valve 20 and the air supply port of the air source 30, and a quick exhaust valve 80 is also connected between the first pipe 50 and the second pipe 60.

[0052] By setting the quick exhaust valve 80 in parallel with the balancing valve 20, the pressure relief speed of the balancing valve 20 can be controlled by adjusting the opening of the quick exhaust valve 80. When the quick exhaust valve 80 is completely closed, all the gas passes through the balancing valve 20, and the pressure relief speed of the balancing valve 20 reaches the fastest. When the opening of the quick exhaust valve 80 gradually increases, part of the gas passes through the quick exhaust valve 80, so the pressure relief speed of the balancing valve 20 will slow down.

[0053] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0054] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0055] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A hydrophobic pneumatic door control assembly, characterized in that: It includes a hydrophobic pneumatic door, a balancing valve and an air source, wherein the balancing valve and the hydrophobic pneumatic door as well as the balancing valve and the air source are detachably connected via a quick-release connector assembly; Among them, the quick-release connector assembly includes a first connector, a second connector and a locking mechanism, a first flow channel is arranged in the first connector, a first end of the first connector is arranged with a plug hole connected to the first flow channel, a second flow channel is arranged in the second connector, a plug-in portion is arranged at the first end of the second connector, the plug-in portion is arranged with a connecting hole connected to the second flow channel, the plug-in portion is sealingly plugged into the plug-in hole so that the connecting hole is connected to the first flow channel, and the locking mechanism is arranged on the first connector, and the locking mechanism is used to unlockably lock the plug-in portion in the plug-in hole.

2. The hydrophobic pneumatic door control assembly according to claim 1, characterized in that: The outer wall of the plug-in portion is provided with a first sealing layer, and the first sealing layer is pressed between the plug-in portion and the plug-in hole to seal the gap between the outer wall of the plug-in portion and the hole wall of the plug-in hole; and / or, The inner wall of the plug hole is provided with a second sealing layer, and the second sealing layer is pressed between the plug part and the plug hole to seal the gap between the outer wall of the plug part and the hole wall of the plug hole.

3. The hydrophobic pneumatic door control assembly according to claim 1, characterized in that: An annular table surface is formed on the outer peripheral wall of the plug-in portion, and the annular table surface is suitable for sealingly connecting with the first end of the first joint.

4. The hydrophobic pneumatic door control assembly according to claim 3, characterized in that: The annular table is provided with a first annular sealing gasket, and the first annular sealing gasket is suitable for sealing between the annular table and the first end of the first joint, and / or, A second annular sealing gasket is disposed at the first end of the first joint, and the second annular sealing gasket is suitable for sealingly arranging between the annular table and the first end of the first joint.

5. The hydrophobic pneumatic door control assembly according to claim 1, characterized in that: The locking mechanism includes a first mounting portion and a locking piece, the first mounting portion is fixed to the outer wall of the first joint, the locking piece is slidably connected to the first mounting portion along the radial direction of the first joint, the second joint or the plug-in portion is provided with a locking groove, and the first end of the locking piece can be unlocked and locked in the locking groove.

6. The hydrophobic pneumatic door control assembly according to claim 5, characterized in that: The locking mechanism also includes a second mounting portion, the first mounting portion is provided with a positioning groove opening toward the second mounting portion, one end of the second mounting portion is fixed to the outer wall of the second joint, the other end of the second mounting portion is suitable for being inserted into the positioning groove, and the locking groove is provided in the second mounting portion.

7. The hydrophobic pneumatic door control assembly according to claim 5 or 6, characterized in that: The locking mechanism also includes an elastic member, the first mounting portion is provided with a mounting hole, the locking member is slidably connected to the mounting hole, the two ends of the elastic member are respectively connected to the first mounting portion and the locking member, and the elastic member is configured to drive the first end of the locking member to be inserted into the locking groove.

8. The hydrophobic pneumatic door control assembly according to claim 7, characterized in that: A pull ring is provided at the second end of the locking member, and the pull ring is located outside the mounting hole.

9. The hydrophobic pneumatic door control assembly according to claim 7, characterized in that: The locking member includes a locking rod and a locking portion fixed to one end of the locking rod, the locking rod is slidably connected to the mounting hole, the locking portion is suitable for being inserted into the locking groove, the elastic member is a spring, the spring is sleeved outside the locking rod, and the two ends of the spring are respectively abutted and fixed to the locking portion and the first mounting portion.

10. The hydrophobic pneumatic door control assembly according to claim 1, characterized in that: The two ends of the balancing valve are respectively connected to a first pipe and a second pipe, the quick-release joint assembly is arranged between an end of the first pipe away from the balancing valve and the air vent of the hydrophobic pneumatic door, another quick-release joint assembly is arranged between an end of the second pipe away from the balancing valve and the air supply port of the air source, and a quick exhaust valve is also connected between the first pipe and the second pipe.

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