Quick plug-in mounting structure of valve

Abstract

The invention provides a quick plug-in mounting structure of a valve, and relates to the technical field of valves. The quick plug-in mounting structure of the valve comprises a valve body, a male butt joint piece and a female butt joint piece. The inner bobbin is elastically inserted into the outer bobbin through cooperation of a second spring, balls are arranged at the tail end of the outer protective shell, and a driving structure is arranged outside the outer protective shell to drive the inner bobbin to move in the axial direction. A movable elastic plugging part is arranged in the front section shell, and an annular clamping groove matched with the ball is formed in the inner wall of the front section shell. A male butt joint piece and a female butt joint piece which are installed at a liquid inlet port and a liquid outlet port of the valve in a preformed mode are adopted to be in rapid butt joint with a female butt joint piece and a male butt joint piece which are preset in a testing equipment pipeline. A traditional threaded connection or flange connection installation mode is replaced, the disassembly and assembly speed is higher, and the overall detection and test efficiency of the valve can be greatly improved.

Description

Technical Field

[0001] The present application relates to the technical field of valve plug-in structures, and in particular to a quick plug-in structure of a valve. Background Art

[0002] Valves are key control components in fluid delivery systems, used to control parameters such as the direction, pressure, and flow of fluids, and have functions such as shutoff, regulation, diversion, backflow prevention, pressure stabilization, diversion, or overflow pressure relief. At present, the mainstream installation method for valve ports is threaded connection or flange docking. When valves with threaded or flanged connections are tested at the factory, not only is the disassembly and assembly speed of the test port slow, but the thread slippage is also likely to occur during the threaded installation process, resulting in damage to the threads at the valve port, thereby affecting the quality of the valve product. Summary of the invention

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a quick plug-in structure of a valve to solve the problem that the valve connected to the test equipment detection port with threaded connection or flange connection is slow to disassemble and assemble when testing, and the threaded connection port is prone to slipping during the installation process, which easily causes damage to the valve port thread.

[0004] A quick-insertion structure of a valve provided in the present application includes: a valve body, a male docking piece, and a female docking piece.

[0005] The male docking member includes an outer protective shell, an outer tube and an inner tube, one end of the outer protective shell is connected to the liquid inlet port of the valve body, the inner tube is elastically plugged into the outer tube through a second spring, the outer tube is elastically plugged into the outer protective shell through a first spring, a limiting hole and a water outlet are respectively arranged on the outer side of the outer tube, and a ball is arranged at the rear end of the outer protective shell, and a driving structure is arranged on the outside of the outer protective shell to drive the inner tube to move along the axial direction; The female docking part includes a front shell and a rear shell connected to each other, one end of the rear shell is connected to the liquid outlet port of the valve body, a movable elastic sealing part is arranged inside the front shell, and the inner walls of the front shell and the rear shell are respectively provided with interconnected guide holes and guide cavities, and the inner wall of the front shell is provided with an annular groove that cooperates with the ball.

[0006] Preferably, the elastic sealing part includes a sealing block, a support rod, a limiting ring and a third spring, the sealing block is slidably arranged inside the front section shell, one end of the support rod is connected to the sealing block, and the limiting ring is fixedly sleeved outside the support rod, and the third spring supports the internal end wall of the front section shell and the limiting ring.

[0007] Preferably, a limiting post is arranged at the inner bottom end of the front shell, and one end of the third spring is sleeved outside the limiting post.

[0008] Preferably, the female docking member further includes a sealing ring, and two groups of the sealing rings are arranged inside the front shell.

[0009] Preferably, a support cylinder is arranged at one end of the inner tube, and a support surface for supporting balls is arranged between the inner tube and the support cylinder.

[0010] Preferably, the male docking member further includes a flange, and the flange is fixed at the other end of the inner tube.

[0011] Preferably, an end sleeve is arranged at the outer end of the outer tube, and the second spring is arranged between the inner end face of the end sleeve and the flange.

[0012] Preferably, at least two O-rings are arranged between the outer tube and the outer protective shell.

[0013] Preferably, a plugging groove opening matching with the end of the outer protective shell is arranged at one end of the front shell away from the rear shell.

[0014] Preferably, the balls and the limiting holes are both distributed in a multi-group circular array outside the outer tube.

[0015] Preferably, the driving structure includes a driving connecting piece and a hydraulic driving piece. The driving connecting piece includes a connecting block, a pressure rod, a connecting rod and a bent rod. A guiding groove and an avoiding groove which are communicated with each other are respectively arranged on the inner wall of the outer protective shell. The connecting block is fixed outside the flange. One end of the pressure rod is connected with the connecting block, and the other end of the pressure rod is connected with the connecting rod through the bent rod. A piston head is arranged at one end of the connecting rod away from the bent rod. The pressure rod is movably inserted into the guiding groove. An installation groove is arranged at one end of the guiding groove away from the avoiding groove; The hydraulic driving piece includes a hydraulic execution part and a hydraulic release and sealing part. The hydraulic release and sealing part is arranged at the top of the installation groove. The hydraulic execution part is arranged outside the outer protective shell to adjust the fluid pressure inside the guiding groove in cooperation with the hydraulic release and sealing part.

[0016] Preferably, the hydraulic execution part includes a flexible sleeve, a positioning shell, a support ring and a spiral flexible pad. The support ring is connected with the positioning shell. The positioning shell and the support ring are both fixed outside the outer protective shell. The flexible sleeve is arranged outside the support ring and communicated with the positioning shell. The spiral flexible pad is arranged in the cavity inside the flexible sleeve.

[0017] Preferably, a cavity layer is arranged inside the spiral flexible pad, and the side edge of the spiral flexible pad close to the outer wall of the flexible sleeve is set as an inclined surface.

[0018] Preferably, the hydraulic release plugging part includes a riser pipe, a protective shell, a button, a vertical rod, a support block, a fourth spring, a vertical pole, and a plugging head. The bottom end of the riser pipe is communicatively arranged inside the installation groove. A circulation port is arranged inside the riser pipe. The fourth spring is arranged above the circulation port. The plugging head is located below the circulation port. The support block is located above the fourth spring. And the vertical rod connects the button and the support block. The protective shell is fixed outside the positioning shell. The vertical pole connects the support block and the plugging head. A diversion port is arranged above the circulation port on the outside of the riser pipe.

[0019] Preferably, the plugging head includes a hard block with a hemispherical structure, a sealing sleeve, and a sealing pad with a frustum-shaped structure. The bottom end of the vertical pole is connected to the hard block. The sealing sleeve is sleeved outside the hard block. The sealing pad is integrally formed at the bottom of the sealing sleeve. And a groove is arranged at the bottom of the sealing pad.

[0020] The beneficial effect of this application is as follows: A quick plug-in structure of a valve obtained through the above design in this application. By adopting a male docking part and a female docking part preformed and installed at the liquid inlet port and the liquid outlet port of the valve, they are quickly docked with the female docking part and the male docking part preset in the pipeline of the testing equipment. Replacing the traditional installation methods of threaded connection or flange connection, it has a faster disassembly and assembly speed, and can greatly improve the overall detection and testing efficiency of the valve.

[0021] The additional aspects and advantages of this application will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of this application. Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions of the embodiments of this application, the drawings required to be used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a schematic structural diagram of the quick plug-in structure of the valve according to the embodiment of this application; Figure 2 It is a schematic structural diagram of the male docking part, the female docking part, the docking and cooperating drive connecting part, and the hydraulic drive part according to the embodiment of this application; Figure 3 It is a schematic internal structure diagram of the male docking part, the drive connecting part, and the hydraulic drive part according to the embodiment of this application; Figure 4 It is a schematic structural diagram of the inner cylinder pipe, the flange, the support cylinder, and the drive connecting part according to the embodiment of this application; Figure 5It is a schematic cross-sectional structure diagram of the outer protective shell according to an embodiment of the present application; Figure 6 It is a schematic internal structure diagram of the female docking part according to an embodiment of the present application; Figure 7 It is a schematic structure diagram of the outer protective shell and the hydraulic driving part according to an embodiment of the present application; Figure 8 It is a schematic structure diagram of the hydraulic execution part according to an embodiment of the present application; Figure 9 It is according to an embodiment of the present application Figure 8 Partial enlarged structure diagram of part A in; Figure 10 It is a schematic structure diagram of the hydraulic release and plugging part according to an embodiment of the present application; Figure 11 It is a schematic structure diagram of the plugging head according to an embodiment of the present application.

[0024] Reference numerals: 1. Valve body; 2. Male docking part; 21. Outer protective shell; 211. Avoidance groove; 212. Guide groove; 214. Installation groove; 22. Outer cylinder tube; 221. Limit hole; 222. Water outlet hole; 23. Inner cylinder tube; 231. Support surface; 24. First spring; 25. Second spring; 26. End sleeve shell; 27. Ball; 28. Flange; 29. Support cylinder; 3. Female docking part; 31. Front section shell; 311. Diversion hole; 32. Rear section shell; 321. Diversion cavity; 33. Plugging block; 34. Support rod; 35. Limit ring; 36. Third spring; 37. Sealing ring; 38. Limit post; 39. Annular clamping groove; 4. Driving connecting part; 41. Connecting block; 42. Pressing rod; 43. Connecting rod; 44. Bent rod; 45. Piston head; 5. Hydraulic driving part; 51. Hydraulic execution part; 511. Flexible sleeve; 512. Positioning shell; 513. Support ring; 514. Spiral flexible pad; 515. Chamber layer; 516. Inclined surface; 52. Hydraulic release and plugging part; 521. Vertical pipe; 5211. Diversion port; 522. Protection shell; 523. Button; 524. Vertical rod; 525. Support block; 526. Fourth spring; 527. Upright rod; 528. Plugging head; 5281. Hard block; 5282. Sealing sleeve; 5283. Sealing pad; 5284. Groove; 529. Flow port. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present application will be described with reference to the accompanying drawings in the embodiments of the present application.

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are some, but not all, of the embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts shall fall within the scope of protection of this application.

[0027] Therefore, the following detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of this application that is claimed, but merely represents selected embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts shall fall within the scope of protection of this application.

[0028] A quick insertion structure of a valve according to an embodiment of this application will be described below with reference to the drawings.

[0029] Please refer to Figures 1 - 11 , a quick insertion structure of a valve according to an embodiment of this application includes: a valve body 1, a male docking member 2, and a female docking member 3.

[0030] Among them, the valve body 1 is integrally formed with the male docking member 2 and the female docking member 3, and the pre-installed male docking member 2 and female docking member 3 are quickly docked with the pre-installed female docking member 3 and male docking member 2 on the pipeline of the test equipment. Compared with the traditional threaded connection or flange installation method, the quick insertion structure of this valve is faster and more convenient during detection and testing. When the quick insertion structure of this valve is docked with the system pipeline, corresponding male docking members 2 and female docking members 3 are also uniformly installed at the ports of the system pipeline.

[0031] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 6, the male docking part 2 includes an outer protective shell 21, an outer cylinder tube 22 and an inner cylinder tube 23. One end of the outer protective shell 21 is communicatively arranged with the liquid inlet port of the valve body 1 by welding. The inner cylinder tube 23 is elastically inserted into the inner part of the outer cylinder tube 22 through the cooperation of the second spring 25. The outer cylinder tube 22 is elastically inserted into the inner part of the outer protective shell 21 through the cooperation of the first spring 24. The outer side of the outer cylinder tube 22 is respectively provided with a limit hole 221 and a water outlet hole 222, and a ball 27 is arranged at the tail end of the outer protective shell 21. A driving structure is arranged outside the outer protective shell 21 to drive the inner cylinder tube 23 to move axially. The female docking part 3 includes a front section shell 31 and a rear section shell 32 which are connected. One end of the rear section shell 32 is communicatively arranged with the liquid outlet port of the valve body 1. An active elastic sealing part is arranged inside the front section shell 31. The inner walls of the front section shell 31 and the rear section shell 32 are respectively provided with a communicating diversion hole 311 and a diversion cavity 321. The inner wall of the front section shell 31 is provided with an annular clamping groove 39 which cooperates with the ball 27.

[0032] Before the test for butt joint installation, the male docking part 2 at one end of the valve body 1 is butted with the female docking part 3 at the end of the test equipment pipeline, and the female docking part 3 on the valve body 1 is butted and installed with the male docking part 2 at the end of the test equipment pipeline. The specific butt joint installation method is as follows: the inner cylinder tube 23 inside the outer protective shell 21 is pushed towards one end of the outer cylinder tube 22 through the driving structure. At this time, the moving inner cylinder tube 23 will push and press the second spring 25 and the outer cylinder tube 22 to move forward into the inside of the front section shell 31. The end of the moving outer cylinder tube 22 will squeeze the elastic sealing part inside the front section shell 31 to move. Finally, the end of the outer protective shell 21 is inserted into the inside of the front section shell 31, and the end of the outer cylinder tube 22 continues to deeply insert into the inside of the front section shell 31. Until the limit hole 221 outside the outer cylinder tube 22 moves to the inner side of the annular clamping groove 39, the ball 27 continuously pressed by the movement of the inner cylinder tube 23 protrudes out of the limit hole 221 and is clamped into the inside of the annular clamping groove 39. The driving structure stops driving, and the plugging and fixing of the female docking part 3 and the male docking part 2 are completed. At this time, the liquid enters the inside of the diversion cavity 321 through the through hole at the end of the front section shell 31. The liquid inside the diversion cavity 321 then enters the groove on one side through the diversion hole 311 inside the front section shell 31. At this time, the water outlet hole 222 on the outer side of the outer cylinder tube 22 is just at the radial position inside the groove. The liquid flowing into the groove from the diversion hole 311 directly enters the inside of the outer cylinder tube 22 and the inner cylinder tube 23 through the water outlet hole 222, and enters the inside of the outer protective shell 21 along the inside of the inner cylinder tube 23, completing the liquid circulation.

[0033] When the female docking part 3 and the male docking part 2 are disassembled, by removing the axial pressure applied to the inner cylinder tube 23 by the driving structure, the outer cylinder tube 22 is driven to move axially away from one end of the front section shell 31 under the diastolic elastic force of the second spring 25 and the first spring 24. While the outer cylinder tube 22 moves back to its original position, the elastic sealing part seals the front section shell 31 under elastic force. The ball 27 at the end of the outer cylinder tube 22 moves radially inward to disengage from the clamping fit with the annular card slot 39. At this time, the end of the outer protective shell 21 can be pulled out from the end of the front section shell 31, completing the rapid disassembly of the male docking part 2 and the female docking part 3. The quick insertion and installation structure of this valve replaces the traditional threaded connection or flange connection installation method. When paired with testing equipment for inspection and testing, it has a faster disassembly and assembly speed, which can greatly improve the overall inspection and testing efficiency of the valve.

[0034] In the above specific embodiments, please refer to Figure 6 , the elastic sealing part includes a sealing block 33, a support rod 34, a limiting ring 35 and a third spring 36. The sealing block 33 is slidably arranged inside the front section shell 31. One end of the support rod 34 is connected to the sealing block 33, and the limiting ring 35 is fixedly sleeved outside the support rod 34. The third spring 36 supports the inner end wall of the front section shell 31 and the limiting ring 35. Among them, the sealing block 33, the support rod 34 and the limiting ring 35 can be integrally formed.

[0035] When the outer cylinder tube 22 inside the outer protective shell 21 moves and the end of the outer cylinder tube 22 presses the sealing block 33, the moving sealing block 33 simultaneously presses the third spring 36 through the support rod 34 and the limiting ring 35 until the ball 27 snaps into the annular card slot 39. When disassembling the female docking part 3 and the male docking part 2, under the elastic force of the third spring 36, through the limiting ring 35 and the support rod 34, the sealing block 33 moves back to its original position and has the effect of pushing out the outer cylinder tube 22 inside the front section shell 31.

[0036] Furthermore, a limiting column 38 integrally formed is arranged at the bottom end inside the front section shell 31. One end of the third spring 36 is sleeved outside the limiting column 38. The setting of the limiting column 38 is to improve the stability of the third spring 36 when it is compressed and expanded.

[0037] Specifically, the female docking part 3 further includes a sealing ring 37. Two groups of sealing rings 37 are arranged inside the front section shell 31. The setting of the sealing ring 37 is to improve the sealing performance between the sealing block 33 and the front section shell 31, and the sealing performance between the outer cylinder tube 22 and the front section shell 31 after the end of the outer cylinder tube 22 is inserted into the front section shell 31.

[0038] When specifically setting, please refer to Figure 4A support tube 29 is provided at one end of the inner tube 23, and a support surface 231 for supporting the ball 27 is provided between the inner tube 23 and the support tube 29. The male docking part 2 also includes a flange 28, which is fixed at the other end of the inner tube 23. The moving inner tube 23 moves together with the support tube 29, and when the outer tube 22 is inside the outer protective shell 21, the ball 27 contacts the outer surface of the support tube 29. When the inner tube 23 gradually moves to push the end of the outer tube 22 to insert into the front shell 31 and contact the blocking block 33, the inner tube 23 also gradually moves, and at the same time, the flange 28 compresses the second spring 25, and the moving inner tube 23 pushes the support surface 231 to move and contact the ball 27, and the ball 27 inside the limiting hole 221 gradually protrudes outward and is stuck in the annular groove 39. During disassembly, the flange 28 and the inner tube 23 move in opposite directions, and the ball 27 gradually moves from the supporting surface 231 to the outer surface of the supporting tube 29 , and the ball 27 is disengaged from the engagement state with the annular groove 39 .

[0039] Furthermore, an end sleeve 26 is disposed at one end of the outer tube 22, and the second spring 25 is disposed between the inner end surface of the end sleeve 26 and the flange 28. The end sleeve 26 is used to limit one end of the second spring 25.

[0040] Specifically, at least two O-rings are arranged between the outer tube 22 and the outer protective shell 21. The O-rings are arranged to improve the sealing between the outer tube 22 and the outer protective shell 21. The balls 27 and the limiting holes 221 are distributed outside the outer tube 22 in multiple groups of annular arrays.

[0041] In the specific configuration, the end of the front shell 31 away from the rear shell 32 is provided with a plug-in slot that matches the end of the outer shell 21. That is, the end of the outer shell 21 is inserted into the interior of the front shell 31 more smoothly and stably.

[0042] How the driving structure in the quick-insertion structure of the valve can more accurately drive the outer tube 22 to move inside the outer protective shell 21 is a problem that needs to be solved.

[0043] In the above specific implementation, please refer to Figure 3 , Figure 4 , Figure 5 and Figure 7, the driving structure includes a driving connecting piece 4 and a hydraulic driving piece 5. The driving connecting piece 4 includes a connecting block 41, a pressure rod 42, a connecting rod 43 and a bent rod 44. Guide grooves 212 and avoidance grooves 211 that communicate with each other are respectively arranged on the inner wall of the outer housing 21. The connecting block 41 is fixed on the outside of the flange 28. One end of the pressure rod 42 is connected to the connecting block 41, and the other end of the pressure rod 42 is connected to the connecting rod 43 through the bent rod 44. A piston head 45 is arranged at the end of the connecting rod 43 away from the bent rod 44. The pressure rod 42 is movably inserted into the guide groove 212. An installation groove 214 is arranged at one end of the guide groove 212 away from the avoidance groove 211. The hydraulic driving piece 5 includes a hydraulic execution part 51 and a hydraulic release and sealing part 52. The hydraulic release and sealing part 52 is arranged at the top of the installation groove 214, and the hydraulic execution part 51 is arranged outside the outer housing 21 to cooperate with the hydraulic release and sealing part 52 to adjust the fluid pressure inside the guide groove 212.

[0044] By pressing the hydraulic execution part 51 in the hydraulic driving piece 5, the liquid pre-installed inside the hydraulic execution part 51 enters the guide groove 212 through the hydraulic release and sealing part 52 to squeeze the piston head 45. The liquid squeezing the piston head 45 drives the connecting rod 43 to move. Through the bent rod 44 and the pressure rod 42, the connecting block 41 and the flange 28 are driven to move, that is, finally the inner cylinder tube 23 is driven to move axially inside the outer cylinder tube 22. The moving inner cylinder tube 23 drives the outer cylinder tube 22 on the outside through the external balls 27 until the end of the outer cylinder tube 22 is inserted into the front shell 31. After the balls 27 in the limit holes 221 protrude outwards and are stuck into the annular card slots 39, stop pressing the hydraulic execution part 51 to discharge the liquid, and at the same time, under the action of the hydraulic release and sealing part 52, prevent the liquid inside the guide groove 212 from flowing back.

[0045] When it is necessary to disassemble the male docking part 2 and the female docking part 3, the guide groove 212 is communicated with the hydraulic execution part 51 through the hydraulic release and sealing part 52. Under the elastic force of the second spring 25 and the first spring 24, the inner cylinder tube 23 is driven to move in the reverse direction. The moving inner cylinder tube 23 drives the connecting block 41 to move through the flange 28, that is, drives the piston head 45 to move through the pressure rod 42, the bent rod 44 and the connecting rod 43 to squeeze the liquid inside the guide groove 212 to flow back to the hydraulic execution part 51 through the hydraulic release and sealing part 52, so as to accurately and quickly control the male docking part 2 and the female docking part 3 to complete the disassembly and assembly operation.

[0046] When the connecting rod 43 moves inside the guide groove 212, the bent rod 44 also moves smoothly inside the avoidance groove 211.

[0047] How the above-mentioned quick insertion and installation structure of the valve realizes the control and stop of the liquid pressure through the specific structures of the hydraulic execution part 51 and the hydraulic release and sealing part 52 is a problem to be solved.

[0048] Further, please refer to Figure 8 、Figure 9 and Figure 10 The hydraulic actuator 51 includes a flexible sleeve 511, a positioning housing 512, a support ring 513 and a spiral flexible pad 514. The support ring 513 is connected to the positioning housing 512, and both the positioning housing 512 and the support ring 513 are fixed outside the outer housing 21. The flexible sleeve 511 is arranged outside the support ring 513 and communicated with the positioning housing 512. The spiral flexible pad 514 is arranged in the cavity inside the flexible sleeve 511. A cavity layer 515 is arranged inside the spiral flexible pad 514, and the side edge of the spiral flexible pad 514 near the outer wall of the flexible sleeve 511 is set as an inclined surface 516. The hydraulic release and sealing part 52 includes a riser 521, a protective housing 522, a button 523, a vertical rod 524, a support block 525, a fourth spring 526, a vertical rod 527 and a sealing head 528. The bottom end of the riser 521 is communicated and arranged inside the installation groove 214. A circulation port 529 is arranged inside the riser 521. The fourth spring 526 is arranged above the circulation port 529. The sealing head 528 is located below the circulation port 529. The support block 525 is located above the fourth spring 526, and the vertical rod 524 connects the button 523 and the support block 525. The protective housing 522 is fixed outside the positioning housing 512. The vertical rod 527 connects the support block 525 and the sealing head 528. A diversion port 5211 is arranged above the circulation port 529 outside the riser 521.

[0049] Squeeze the flexible sleeve 511 in the hydraulic actuator 51, and the liquid inside the flexible sleeve 511 enters the connected positioning housing 512 along the cavity between the spiral flexible pad 514 with a spiral structure and the flexible sleeve 511. The liquid inside the positioning housing 512 enters the inside of the riser 521 above the circulation port 529 through the diversion port 5211 outside the riser 521. The liquid inside the riser 521 above the circulation port 529 is pressurized and squeezed downward to gradually move the lower sealing head 528 downward, so that a gap appears between the sealing head 528 and the inner wall of the circulation port 529. The liquid in the upper layer of the circulation port 529 can flow into the guide groove 212 through the gap between the circulation port 529 and the sealing head 528 to squeeze the piston head 45 and the connecting rod 43 to move inside the guide groove 212. At the same time, the downward moving sealing head 528 synchronously drives the support block 525 to move downward through the vertical rod 527 to squeeze the fourth spring 526.

[0050] When it is necessary to disassemble the male docking part 2 and the female docking part 3, press the button 523 inside the protective housing 522. The protective housing 522 plays a role in protecting against accidental touch. The downward moving button 523 drives the support block 525 to move downward through the vertical rod 524, that is, drives the vertical rod 527 and the sealing head 528 to move downward. At this time, a gap is generated between the sealing head 528 and the circulation port 529. The liquid inside the guide groove 212 is reset and pushed back into the flexible sleeve 511 under the reset thrust of the piston head 45 and the connecting rod 43.

[0051] The spiral flexible pad 514 inside the flexible sleeve 511 adopts a spiral structure. While facilitating the flow of liquid in the cavity inside the flexible sleeve 511, it also enables the flexible sleeve 511 to have a good diastolic and reset function. That is, when pressing the button 523 downward, the liquid inside the guide groove 212 is more easily sucked into the inside of the flexible sleeve 511. The design of the cavity layer 515 inside the spiral flexible pad 514 is to enhance the overall diastolic ability of the spiral flexible pad 514, that is, to enhance the diastolic and reset ability of the flexible sleeve 511. Both sides of the top edge of the spiral flexible pad 514 are designed with inclined surfaces 516, which reduces the resistance when pressing the flexible sleeve 511. That is, when it is easier to compress the flexible sleeve 511 and the spiral flexible pad 514, the flexible sleeve 511 and the spiral flexible pad 514 also have better diastolic and reset abilities.

[0052] Among them, both the flexible sleeve 511 and the spiral flexible pad 514 can be made of flexible materials with good elasticity such as rubber materials or latex materials with good elasticity.

[0053] If the plugging head 528 in the quick insertion structure of the above valve can have a better plugging effect with the flow port 529, it can further improve the stability after the male docking part 2 and the female docking part 3 are docked.

[0054] Specifically, please refer to Figure 11 , the plugging head 528 includes a hard block 5281 with a hemispherical structure, a sealing sleeve 5282, and a sealing pad 5283 with a frustum-shaped structure. The bottom end of the vertical rod 527 is connected to the hard block 5281. The sealing sleeve 5282 is sleeved outside the hard block 5281. The sealing pad 5283 is integrally formed at the bottom of the sealing sleeve 5282, and a groove 5284 is provided at the bottom of the sealing pad 5283.

[0055] When the liquid enters the vertical pipe 521 through the diversion port 5211, the liquid will squeeze the hard block 5281, the sealing sleeve 5282, and the sealing pad 5283 below to move downward together through the flow port 529. A gap is generated between the flow port 529 and the hard block 5281 for the liquid to flow into the guide groove 212 inside. When the male docking part 2 and the female docking part 3 are stably connected, the liquid inside the guide groove 212 has a relatively high pressure. At this time, the outer wall of the sealing sleeve 5282 has a good sealing effect in contact with the flow port 529, and at the same time, the liquid enters the groove 5284 and squeezes the inner wall of the sealing pad 5283 outward, making the outer wall of the sealing pad 5283 closely fit with the inner wall of the vertical pipe 521. That is, after the male docking part 2 and the female docking part 3 are fixed, the plugging head 528 has a better function of locking the liquid to prevent backflow, enabling the male docking part 2 and the female docking part 3 to establish a stable connection effect durably and stably.

[0056] The above are only the embodiments of the present application and are not intended to limit the protection scope of the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0057] As described above, the above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, and all should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A quick-insertion structure for a valve, characterized in that: include: A valve body (1), a male docking member (2) and a female docking member (3), wherein the male docking member (2) comprises an outer protective shell (21), an outer tube (22) and an inner tube (23), one end of the outer protective shell (21) is connected to a liquid inlet port of the valve body (1), the inner tube (23) is elastically plugged into the outer tube (22) through a second spring (25), the outer tube (22) is elastically plugged into the outer shell (21) through a first spring (24), a limiting hole (221) and a water outlet hole (222) are respectively arranged on the outer side of the outer tube (22), and a ball (27) is arranged at the rear end of the outer protective shell (21), and a driving structure is arranged on the outside of the outer protective shell (21) to drive the inner tube (23) to move along the axial direction; The female docking member (3) comprises a front shell (31) and a rear shell (32) which are connected to each other; one end of the rear shell (32) is connected to the liquid outlet port of the valve body (1); a movable elastic sealing portion is provided inside the front shell (31); the inner walls of the front shell (31) and the rear shell (32) are respectively provided with communicating guide holes (311) and guide cavities (321); and the inner wall of the front shell (31) is provided with an annular groove (39) which cooperates with the ball (27).

2. A quick-insertion structure for a valve according to claim 1, characterized in that: The elastic blocking portion comprises a blocking block (33), a support rod (34), a limiting ring (35) and a third spring (36); the blocking block (33) is slidably arranged inside the front section shell (31); one end of the support rod (34) is connected to the blocking block (33); and the limiting ring (35) is fixedly sleeved outside the support rod (34); and the third spring (36) supports the inner end wall of the front section shell (31) and the limiting ring (35).

3. A quick-insertion structure for a valve according to claim 2, characterized in that: A limiting column (38) is provided at the bottom end of the interior of the front shell (31), and one end of the third spring (36) is sleeved outside the limiting column (38).

4. A quick-insertion structure for a valve according to claim 2, characterized in that: The female docking member (3) further comprises a sealing ring (37), and two groups of the sealing rings (37) are arranged inside the front section shell (31).

5. The quick-insertion structure of a valve according to claim 1, characterized in that: A support tube (29) is provided at one end of the inner tube (23), and a support surface (231) for supporting a ball (27) is provided between the inner tube (23) and the support tube (29). An end sleeve (26) is provided at one end of the outer tube (22), and the second spring (25) is provided between an inner end surface of the end sleeve (26) and a flange (28).

6. A quick-insertion structure for a valve according to claim 1, characterized in that: The male butt joint (2) further comprises a flange (28), wherein the flange (28) is fixed to the other end of the inner tube (23).

7. A quick-insertion structure for a valve according to claim 6, characterized in that: The driving structure comprises a driving connection member (4) and a hydraulic driving member (5), wherein the driving connection member (4) comprises a connecting block (41), a pressure rod (42), a connecting rod (43) and a bent rod (44), wherein the inner wall of the outer protective shell (21) is respectively provided with a guide groove (212) and an avoidance groove (211) which are connected to each other, wherein the connecting block (41) is fixed to the outer side of the flange (28), wherein one end of the pressure rod (42) is connected to the connecting block (41), and the other end of the pressure rod (42) is connected to the connecting rod (43) via the bent rod (44), and a piston head (45) is provided at one end of the connecting rod (43) away from the bent rod (44), wherein the pressure rod (42) is movably inserted in the guide groove (212), and an installation groove (214) is provided at one end of the guide groove (212) away from the avoidance groove (211); The hydraulic drive component (5) comprises a hydraulic actuator (51) and a hydraulic release sealing portion (52), wherein the hydraulic release sealing portion (52) is arranged at the top of the mounting groove (214), and the hydraulic actuator (51) is arranged outside the outer protective shell (21) to cooperate with the hydraulic release sealing portion (52) to adjust the internal fluid pressure of the guide groove (212).

8. A quick-insertion structure for a valve according to claim 7, characterized in that: The hydraulic actuator (51) comprises a flexible sleeve (511), a positioning shell (512), a support ring (513) and a spiral flexible pad (514); the support ring (513) is connected to the positioning shell (512); the positioning shell (512) and the support ring (513) are both fixed to the outside of the outer protective shell (21); the flexible sleeve (511) is arranged outside the support ring (513) and communicates with the positioning shell (512); and the spiral flexible pad (514) is arranged in a cavity inside the flexible sleeve (511).

9. A quick-insertion structure for a valve according to claim 8, characterized in that: The hydraulic release blocking portion (52) comprises a vertical pipe (521), a protective shell (522), a button (523), a vertical rod (524), a support block (525), a fourth spring (526), ​​a vertical rod (527) and a blocking head (528); the bottom end of the vertical pipe (521) is connected to the inside of the installation groove (214); a flow port (529) is provided inside the vertical pipe (521); the fourth spring (526) is provided above the flow port (529); The plug (528) is located below the flow port (529), the support block (525) is located above the fourth spring (526), ​​and the vertical rod (524) connects the button (523) and the support block (525), the protective shell (522) is fixed to the outside of the positioning shell (512), the vertical rod (527) connects the support block (525) and the plug (528), and a guide port (5211) is provided on the outside of the vertical pipe (521) above the flow port (529).

10. The quick-insertion structure of a valve according to claim 1, characterized in that: The balls (27) and the limiting holes (221) are distributed in a plurality of annular arrays outside the outer tube (22); at least two O-rings are arranged between the outer tube (22) and the outer protective shell (21); and an insertion notch matching the end of the outer protective shell (21) is arranged at one end of the front shell (31) away from the rear shell (32).

Images