Automatic pressure relief corrugated pipe stop valve

Abstract

The invention relates to the technical field of stop valves, and provides an automatic pressure relief corrugated pipe stop valve which comprises a valve body provided with a first fluid channel, a second fluid channel and an adjusting space, a valve in the adjusting space, a corrugated pipe, a linkage part and a wrinkle cleaning device on the linkage part. The first fluid channel is communicated with the second fluid channel through the adjusting space; an automatic pressure relief corrugated pipe stop valve is opened or closed; the corrugated pipe is connected to the valve and the top wall of the adjusting space; the linkage part is arranged on the top wall of the adjusting space and the valve; when the valve opens the automatic pressure relief corrugated pipe stop valve, the linkage part drives the wrinkle cleaning device to be far away from the corrugated pipe; when the valve closes the automatic pressure relief corrugated pipe stop valve, the linkage part drives the wrinkle cleaning device to get close to the corrugated pipe. According to the automatic pressure relief corrugated pipe stop valve, impurities at the wrinkles of the corrugated pipe can be removed in time, and then the service life of the corrugated pipe is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of stop valves, and in particular to an automatic pressure relief bellows stop valve. Background Art

[0002] The bellows globe valve is a type of globe valve used in applications requiring higher sealing performance. The bellows is a key component, primarily used to set the preset pressure and enhance the valve's sealing performance.

[0003] The bellows stop valve in the related art may encounter some media containing impurities during use. When conveying these media, the impurities will adhere to the folds of the bellows, which will affect the operation of the bellows or even cause it to fail to work normally, easily shortening the service life of the bellows. Summary of the Invention

[0004] The embodiment of the present application provides an automatic pressure relief bellows stop valve, which can improve the technical problem in the related art that impurities attached to the folds of the bellows affect the normal operation of the bellows and shorten the service life of the bellows.

[0005] The embodiment of the present application provides an automatic pressure relief bellows stop valve, comprising: a valve body, the valve body having a first fluid channel, a second fluid channel and an adjustment space, the first fluid channel being connected to the second fluid channel through the adjustment space; a valve movably disposed in the regulating space, and the valve is used to open or close the automatic pressure relief bellows stop valve; a bellows, one end of the bellows being connected to the valve, and the other end being connected to a side wall of the regulating space opposite to the valve; a linkage portion, wherein a portion of the linkage portion is disposed on an inner wall of the regulating space away from the valve, and another portion is disposed on the valve; a wrinkle cleaning device, movably disposed on a portion of the linkage portion located on an inner wall of the regulating space away from the valve; and In which, the valve is used to open the automatic pressure relief bellows stop valve so that the linkage part drives the pleat cleaning device away from the bellows; the valve is used to close the automatic pressure relief bellows stop valve so that the linkage part drives the pleat cleaning device close to the bellows.

[0006] The above technical solutions in the embodiments of the present application have at least the following technical effects: The automatic pressure relief bellows stop valve provided in the embodiment of the present application is equipped with a pleat cleaning device around the bellows so that the pleat cleaning device can clean the pleats of the bellows, thereby preventing impurities from damaging the bellows. When the valve is open for the automatic pressure relief bellows stop valve, the valve moves toward the bellows to drive the pleat cleaning device away from the bellows through the linkage part, thereby preventing the pleat cleaning device from being clamped by the bellows (which will affect the normal contraction of the bellows), thereby preventing the pleat cleaning device from affecting the normal operation of the bellows; when the valve is closed for the automatic pressure relief bellows stop valve, the valve moves away from the bellows to drive the pleat cleaning device close to the bellows through the linkage part, thereby enabling the pleat cleaning device to contact the pleats of the bellows, thereby enabling the pleat cleaning device to remove impurities in the pleats of the bellows, and ultimately preventing impurities in the pleats of the bellows from damaging the bellows (during the compression process of the bellows, hard impurities in the pleats of the bellows will cause pits and concave holes in the bellows, and in severe cases, the bellows will penetrate, thereby affecting the working pressure of the bellows; impurities in the pleats of the bellows will also affect the normal expansion and contraction of the bellows, thereby preventing the bellows from being completely compressed, thereby affecting the pressure relief speed of the automatic pressure relief bellows stop valve).

[0007] In some embodiments, the linkage portion includes a linkage body, an abutment and a movable guide rail, the linkage body is provided on the valve, the abutment is provided at one end of the linkage body away from the valve, and the distance between the abutment and the bellows is smaller than the distance between the linkage body and the bellows; the movable guide rail is provided on the inner wall of the adjustment space away from the valve, and the direction of the movable guide rail is toward the bellows; the pleat cleaning device includes a pleat cleaning body and an abutment fitting, one end of the pleat cleaning body is movably provided in the track of the movable guide rail; the abutment fitting is provided at the other end of the pleat cleaning body, and the distance between the abutment fitting and the linkage body is smaller than the distance between the pleat cleaning body and the linkage body; In which, the linkage body is used to drive the abutment to move toward the movable guide rail when the valve opens the automatic pressure relief bellows stop valve, so that the abutment fitting part is separated from the abutment fitting part; the linkage body is also used to drive the abutment to move back to the movable guide rail when the valve closes the automatic pressure relief bellows stop valve, so as to drive the abutment fitting part to abut against the abutment fitting, thereby moving the wrinkle cleaning body toward the bellows.

[0008] In some embodiments, the linkage portion also includes an elastic element, which is stretchably arranged in the track of the movable guide rail, one end of the elastic element is connected to the end of the movable guide rail away from the bellows, and the other end is connected to the pleat cleaning device; the elastic element is used to drive the pleat cleaning body to move back toward the bellows when the abutment fitting part is separated from the abutment part.

[0009] In some embodiments, the valve body further has an adjusting through hole, the two ends of which are respectively connected to the adjusting space and the external space; the automatic pressure relief bellows stop valve also includes an adjusting part, which is arranged in the adjusting space, and one end of the adjusting part located in the adjusting space is connected to the valve, and the other end extends to the external space, and the adjusting part is used to manually control the valve.

[0010] In some embodiments, the wrinkle cleaning device comprises: a pleat cleaning body, one end of which is movably disposed on a portion of the inner wall of the linkage portion that is located away from the valve in the regulating space; a transmission mechanism, wherein a portion of the transmission mechanism is disposed on the pleat cleaning body, and another portion is disposed on a portion of the adjustment portion located within the adjustment space, and the two portions of the transmission mechanism are capable of transmitting when the length of the bellows is within a preset range, and are incapable of transmitting when the length of the bellows exceeds the preset range; a cleaning member, which is sleeved on the pleat cleaning body, and when the cleaning member contacts the corrugated pipe, its contact surface can cover the entire pleat of the corrugated pipe; and The cleaning member is arranged on the fold cleaning body, and when the cleaning member contacts the corrugated pipe, the contact surface of the cleaning member can cover the entire fold of the corrugated pipe.

[0011] Among them, when the valve is manually opened, the adjustment part is used to drive the pleat cleaning body to rotate through the transmission action between the two parts of the transmission mechanism when the length of the bellows is within a preset range, thereby enabling the cleaning part to be relatively displaced with the pleats of the bellows.

[0012] In some embodiments, the transmission mechanism includes: a driving gear, disposed at a portion of the adjusting portion located in the adjusting space; and A driven gear is provided on the wrinkle cleaning body, and the driven gear is capable of meshing with the driving gear; Wherein, the valve is used to push the driven gear to move to engage with the driving gear through the linkage part and the pleat cleaning body when the length of the bellows is within a preset range; the valve is also used to push the driven gear to move to separate from the driving gear through the linkage part and the pleat cleaning body when the length of the bellows is greater than the preset range.

[0013] In some embodiments, the adjusting portion includes: a first adjusting member movably disposed in the adjusting space and the adjusting through hole, the first adjusting member being sealed in the adjusting through hole; the first adjusting member having an internal threaded hole, and an opening direction of the internal threaded hole facing away from the valve; and a second adjusting member, wherein one end of the second adjusting member facing the first adjusting member has an external thread adapted to the internal leakage hole, and the end of the second adjusting member having the external thread is disposed in the internal threaded hole, and the other end of the second adjusting member extends to the external space; In which, the valve is arranged at the end of the first adjusting member without the internal threaded hole; the first adjusting member and the second adjusting member are used together to drive the valve to move toward the first adjusting member, thereby causing the valve to open the automatic pressure relief bellows stop valve; the first adjusting member and the second adjusting member are also used together to drive the valve to move back toward the first adjusting member, thereby causing the valve to close the automatic pressure relief bellows stop valve.

[0014] In some embodiments, a mounting hole is provided on the side wall of the first adjusting member at one end facing the valve; the adjusting portion further includes a connecting portion, a portion of which is telescopically arranged in the mounting hole; the valve has a connecting through hole and a connecting mating hole, and the connecting mating hole is arranged on the side wall of the connecting through hole; the first adjusting member is sealed and movably arranged in the connecting through hole; the connecting portion is used to fix the valve and the first adjusting member in a fixed state or release the fixed state between the valve and the first adjusting member.

[0015] In some embodiments, a trigger hole is formed at one end of the first adjustment member located in the connecting through hole, the mounting hole and the adjustment space are connected through the trigger hole, and the connection point between the mounting hole and the trigger hole is located in the middle part of the trigger hole, and the connecting portion includes: a connecting member, telescopically disposed in the mounting hole; a triggering member, sealed and movably disposed in the triggering hole; a protrusion, disposed on a side wall of the trigger member, the protrusion being used to push the connecting member partially into the connecting fitting hole, thereby enabling the connecting member to fix the first regulating member to the valve; and a pressure preset device, disposed at an end of the trigger hole away from the second fluid channel, wherein a movable end of the pressure preset device is connected to an end of the trigger member away from the second fluid channel; In which, the pressure preset device is used to preset the trigger pressure of the trigger member. When the pressure in the second fluid channel is greater than or equal to the trigger pressure, the trigger member drives the protrusion to move toward the pressure preset device so that the protrusion is disengaged from the connecting member, and then the connecting member is completely retracted into the mounting hole, thereby releasing the connection relationship between the valve and the first adjusting member; when the pressure in the second fluid channel is less than the trigger pressure, the trigger member drives the protrusion to move back to the pressure preset device so that the protrusion is abutted against the connecting member, and then the connecting member is partially extended into the connecting mating hole, thereby connecting the valve to the first adjusting member.

[0016] In some embodiments, the sealing portion of the trigger member is located between the mounting hole and the second fluid channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 A schematic diagram of the three-dimensional structure of the automatic pressure relief bellows stop valve provided in an embodiment of the present application; Figure 2 A schematic cross-sectional view of the automatic pressure relief bellows stop valve provided in an embodiment of the present application; Figure 3 for Figure 2 Schematic diagram of the local enlarged structure at A in the figure.

[0019] Among them, the reference numerals in the figures are: 100. Automatic pressure relief bellows stop valve; 10. Valve body; 101. First fluid channel; 102. Second fluid channel; 103. Adjustment space; 104. Adjustment through hole; 20, valve; 200, connecting through hole; 201, connecting matching hole; 30. Bellows; 40. Linkage portion; 41. Linkage body; 42. Abutment member; 43. Movable guide rail; 44. Elastic element; 50. Please cleaning device; 51. Please cleaning body; 52. Abutting fitting; 53. Transmission mechanism; 531. Driving gear; 532. Driven gear; 54. Cleaning member; 60. Adjustment portion; 61. First adjustment member; 610. Mounting hole; 611. Trigger hole; 62. Second adjustment member; 63. Connecting portion; 631. Connecting member; 632. Trigger member; 633. Protrusion; 634. Pressure preset device. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are for the purpose of describing specific embodiments only and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the accompanying drawings are intended to cover non-exclusive inclusions.

[0022] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0023] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0025] In this application, "and / or" is simply a way to describe the relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. Additionally, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0026] It should be noted that, in this application, words such as "in some embodiments", "exemplarily", "for example", etc. are used to indicate examples, illustrations or explanations. Any embodiment or design described in this application as "in some embodiments", "exemplarily", "for example" should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "in some embodiments", "exemplarily", "for example" is intended to present related concepts in a concrete way, meaning that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the above words in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0027] A bellows globe valve is designed for use in applications requiring higher sealing performance. The bellows is a key component, used to set the preset pressure and enhance the valve's sealing performance. By welding the bellows directly between the valve stem and bonnet, a completely enclosed metal barrier is formed, completely isolating the valve stem from the media and preventing leakage along the stem.

[0028] The bellows stop valve in the related technology will encounter some media containing impurities during use. When conveying these media, the impurities will adhere to the folds of the bellows. Some harder impurities will affect the compression degree of the bellows, which will cause the bellows to be unable to be used normally. At the same time, long-term squeezing of the bellows will cause pits and even holes on the bellows, which will affect the structure of the bellows, thereby shortening the service life of the bellows.

[0029] Based on this, in order to improve the technical problem in the related art that impurities attached to the folds of the bellows cause the bellows to be unable to be used normally and shorten the service life of the bellows, the embodiments of the present application provide the following solution.

[0030] Please also refer to Figures 1 to 3 The embodiment of the present application provides an automatic pressure relief bellows stop valve 100, which includes a valve body 10, a valve 20, a bellows 30, a linkage part 40 and a pleat cleaning device 50, wherein: The valve body 10 has a first fluid channel 101 , a second fluid channel 102 and an adjustment space 103 . The first fluid channel 101 is connected to the second fluid channel 102 through the adjustment space 103 .

[0031] The valve 20 is movably disposed in the adjustment space 103 , and the valve 20 is used to open or close the automatic pressure relief bellows stop valve 100 .

[0032] One end of the bellows 30 is fixedly connected to the valve 20 , and the other end is fixedly connected to the top wall of the adjustment space 103 .

[0033] A portion of the linkage portion 40 is disposed on the top wall of the adjustment space 103 , and another portion is disposed on the valve 20 .

[0034] The wrinkle cleaning device 50 is movably disposed on a portion of the inner wall of the linkage portion 40 located in the adjustment space 103 away from the valve 20 and is located on one side of the bellows 30 for cleaning the outer wall of the bellows 30 .

[0035] Among them, the valve 20 can drive the pleat cleaning device 50 away from the bellows 30 through the linkage part 40 while opening the automatic pressure relief bellows stop valve 100; the valve 20 can also drive the pleat cleaning device 50 close to the bellows 30 through the linkage part 40 while closing the automatic pressure relief bellows stop valve 100.

[0036] It can be understood that the valve body 10 is a base for setting the valve 20, the bellows 30, the pleat cleaning device 50 and the linkage part 40. The valve 20 is a component for opening or closing the automatic pressure relief bellows stop valve 100; for example, the valve 20 can be a metal plate or a metal block. The bellows 30 is a component for providing a preset pressure relief pressure. The pleat cleaning device 50 is a device for cleaning the pleats of the bellows 30; for example, the pleat cleaning device 50 can be a cleaning brush or a sponge block. The linkage part 40 is a component for connecting the movement of the valve 20 with the movement of the pleat cleaning device 50; for example, the linkage part 40 can include a linkage body 41, an abutment 42 and an abutment mating part 52; for another example, the linkage part 40 can be a connecting rod mechanism.

[0037] As can be seen from the above, the automatic pressure relief bellows stop valve 100 provided in the embodiment of the present application provides a pleat cleaning device 50 around the bellows 30 so that the pleat cleaning device 50 can clean the pleats of the bellows 30, thereby preventing impurities from damaging the bellows 30. When the valve 20 opens the automatic pressure relief bellows stop valve 100, the valve 20 moves toward the bellows 30 to drive the pleat cleaning device 50 away from the bellows 30 through the linkage part 40, thereby preventing the pleat cleaning device 50 from being clamped by the bellows 30 (which will affect the normal contraction of the bellows 30), thereby preventing the pleat cleaning device 50 from affecting the normal operation of the bellows 30; when the valve 20 closes the automatic pressure relief bellows stop valve 100, the valve 20 moves away from the bellows 30 to drive the pleat cleaning device 50 close to the bellows 30 through the linkage part 40, thereby enabling the pleat cleaning device 50 to It contacts the folds of the bellows 30, so that the fold cleaning device 50 can remove impurities in the folds of the bellows 30, and finally prevent the impurities in the folds of the bellows 30 from damaging the bellows 30 (during the compression process of the bellows 30, hard impurities in the folds of the bellows 30 will cause pits and concave holes in the bellows 30, and in severe cases, the bellows 30 will be penetrated, which will affect the working pressure of the bellows 30; the impurities in the folds of the bellows 30 will also affect the normal expansion and contraction of the bellows 30, and the bellows 30 will not be able to be completely compressed, which will affect the pressure relief speed of the automatic pressure relief bellows stop valve 100).

[0038] In some embodiments, please refer to Figures 1 to 3 The linkage part 40 includes a linkage body 41, an abutment 42 and a movable guide rail 43. The linkage body 41 is provided on the valve 20. The abutment 42 is provided at one end of the linkage body 41 away from the valve 20, and the distance between the abutment 42 and the bellows 30 is smaller than the distance between the linkage body 41 and the bellows 30. The movable guide rail 43 is provided on the inner wall of the adjustment space 103 away from the valve 20. The direction guided by the movable guide rail 43 is the direction of movement from away from the bellows 30 toward the bellows 30. The wrinkle cleaning device 50 includes a wrinkle cleaning device 50. The wrinkle cleaning body 51, the cleaning member 54 and the abutting fitting member 52, one end of the wrinkle cleaning body 51 is movably arranged in the track of the movable guide rail 43; the cleaning member 54 is arranged on the wrinkle cleaning body 51, and when the cleaning member 54 contacts the corrugated tube 30, its contact surface can cover the entire fold of the corrugated tube 30; the abutting fitting member 52 is arranged at the other end of the wrinkle cleaning body 51, and the distance between the abutting fitting member 52 and the linkage body 41 is smaller than the distance between the wrinkle cleaning body 51 and the linkage body 41; Among them, the linkage body 41 is used to drive the abutment 42 to move toward the movable guide rail 43 when the valve 20 opens the automatic pressure relief bellows stop valve 100, so as to separate the abutment fitting 52 from the abutment 42; the linkage body 41 is also used to drive the abutment 42 to move back to the movable guide rail 43 when the valve 20 closes the automatic pressure relief bellows stop valve 100, so as to drive the abutment fitting 52 to abut against the abutment 42, thereby moving the pleat cleaning body 51 toward the bellows 30.

[0039] It can be understood that the linkage body 41 is a component for connecting the valve 20; for example, the linkage body 41 can be a metal rod or a metal block. The abutment 42 is a component for pushing the abutment fitting 52 to move; for example, the abutment 42 can be a metal block or a metal shell. The movable guide rail 43 is a component for cooperating with the linkage body 41 to control the moving direction of the cleaning member 54; for example, the movable guide rail 43 can be two parallel angle steels or two parallel metal columns. The pleat cleaning body 51 is a component for accommodating the abutment fitting 52; for example, the pleat cleaning body 51 can be a rotatable metal rod or a movable metal block. The abutment fitting 52 is a component for pushing the pleat cleaning device 50; for example, the abutment fitting 52 can be a metal block or a metal shell. The cleaning member 54 is a device for cleaning the pleats of the bellows 30; for example, the cleaning member 54 is a cleaning brush or a cleaning sponge.

[0040] With this arrangement, when valve 20 closes the automatic pressure relief bellows stop valve 100, valve 20 drives the abutment member 42 toward the second fluid passage 102 via the linkage body 41, allowing the abutment member 42 to abut against the mating abutment member 52, thereby allowing the pleat cleaning body 51 to approach the bellows 30. Compared to a solution employing a connecting rod mechanism (one end of an active rod is provided on valve 20, the other end is hinged to one end of a connecting rod, and the other end of the connecting rod is hinged to one end of a pleat cleaning device 50; valve 20 drives the active rod to move, thereby driving the pleat cleaning device 50 toward or away from the bellows 30 via the connecting rod), this solution can adapt to the internal environment of the automatic pressure relief bellows stop valve 100 for a long period of time (the presence of liquid within the automatic pressure relief bellows stop valve 100, if a connecting rod structure is used, may cause rust at the hinge of the connecting rod structure, thereby affecting the use of the connecting rod structure).

[0041] Optionally, in some embodiments, see Figures 1 to 3 The linkage part 40 also includes an elastic element 44, which can be stretchably arranged in the track of the movable guide rail 43, one end of the elastic element 44 is connected to the end of the movable guide rail 43 away from the bellows 30, and the other end is connected to the pleat cleaning device 50; the elastic element 44 is used to drive the pleat cleaning body 51 to move back toward the bellows 30 when the abutment fitting part 52 is separated from the abutment part 42.

[0042] It can be understood that the elastic element 44 is a device for providing power to the wrinkle cleaning device 50; for example, the elastic element 44 can be a spring or an elastic rope.

[0043] In this arrangement, when the valve 20 opens the automatic pressure relief bellows stop valve 100, the valve 20 drives the abutment 42 to move back toward the second fluid channel 102 through the linkage body 41, so that the abutment 42 can be separated from the abutment mating part 52, and then the elastic element 44 can push the pleat cleaning device 50 away from the bellows 30, thereby preventing the pleat cleaning device 50 from affecting the normal operation of the bellows 30.

[0044] Optionally, see Figures 1 to 3 The valve body 10 also has an adjusting through hole 104, the two ends of which are respectively connected to the adjusting space 103 and the external space; the automatic pressure relief bellows stop valve 100 also includes an adjusting part 60, which is arranged in the adjusting space 103. One end of the adjusting part 60 located in the adjusting space 103 is connected to the valve 20, and the other end extends to the external space through the adjusting through hole 104. The adjusting part 60 is used to manually control the valve 20.

[0045] It can be understood that the adjusting portion 60 is a component for manually adjusting the valve 20 ; for example, the adjusting portion 60 includes a first adjusting member 61 , a second adjusting member 62 and a connecting portion 63 ; for another example, the adjusting portion 60 can also be a metal rod.

[0046] In this arrangement, the manual adjustment part 60 is used to control the valve 20 to open or close the automatic pressure relief bellows stop valve 100. When the automatic pressure relief function of the automatic pressure relief bellows stop valve 100 is damaged, the adjustment part 60 can manually open or close the automatic pressure relief bellows stop valve 100, so that the automatic pressure relief bellows stop valve 100 can release pressure in time when the automatic pressure relief function is damaged, thereby avoiding the harm caused by excessive pressure (excessive internal pressure may cause the automatic pressure relief bellows stop valve 100 to burst).

[0047] For example, see Figures 1 to 3 The wrinkle cleaning device 50 further includes a wrinkle cleaning body 51 and a transmission mechanism 53, wherein: One end of the wrinkle cleaning body 51 is laterally movably disposed on a portion of the inner wall of the linkage portion 40 located away from the valve 20 in the regulating space 103 .

[0048] The transmission mechanism 53 includes a first transmission part and a second transmission part; the first transmission part is arranged on the pleat cleaning body 51, and the second transmission part is arranged on the part of the adjustment part 60 located in the adjustment space 103, and the transmission mechanism 53 can transmit when the length of the bellows 30 is within the preset length range, and the transmission mechanism 53 cannot transmit when the length of the bellows 30 is greater than the preset length range.

[0049] The cleaning member 54 is disposed on the fold cleaning body 51 , and when the cleaning member 54 contacts the corrugated tube 30 , its contact surface can cover the entire fold of the corrugated tube 30 .

[0050] Among them, when the valve 20 is manually opened, the adjustment part 60 is used to drive the pleat cleaning body 51 to rotate through the transmission action of the transmission mechanism 53 when the length of the bellows 30 is within a preset range, thereby enabling the cleaning part 54 to be relatively displaced with the pleats of the bellows 30.

[0051] It can be understood that the transmission mechanism 53 is a structure for providing power to the cleaning member 54; for example, the transmission mechanism 53 may include a driving gear 531 and a driven gear 532; for another example, the transmission mechanism 53 may also be a motor, etc.

[0052] With such arrangement, when the length of the bellows 30 is within a preset range, the adjusting portion 60 is manually rotated to rotate the second transmission portion, thereby driving the pleat cleaning body 51 to rotate through the first transmission portion, thereby driving the cleaning member 54 to clean the pleats of the bellows 30; compared with the scheme of using a motor to drive the pleat cleaning body 51 to rotate, the above scheme can link the cleaning of the pleats of the bellows 30 with manual opening or closing, thereby manually judging the cleaning of the bellows 30, thereby avoiding repeated cleaning of the pleats of the bellows 30 (repeated cleaning of the bellows 30 will cause the bellows 30 to be subjected to more friction, which will affect the thickness of the bellows 30).

[0053] In some embodiments, see Figures 1 to 3 , the adjusting portion 60 can rotate around its own axis; the transmission mechanism 53 includes a driving gear 531 and a driven gear 532, wherein: The driving gear 531 is disposed on the adjusting portion 60 .

[0054] The driven gear 532 is provided on the wrinkle cleaning body 51 , and the driven gear 532 can mesh with the driving gear 531 .

[0055] Among them, the valve 20 is used to push the driven gear 532 to move to engage with the driving gear 531 through the linkage part 40 and the pleat cleaning body 51 when the length of the bellows 30 is within the preset range; the valve 20 is also used to push the driven gear 532 to move to separate from the driving gear 531 through the linkage part 40 and the pleat cleaning body 51 when the length of the bellows 30 is greater than the preset range.

[0056] It can be understood that the driving gear 531 is a component for driving the driven gear 532 to rotate. The driven gear 532 is a component for driving the wrinkle cleaning body 51 to rotate.

[0057] In this arrangement, when the driving gear 531 and the driven gear 532 are in meshing relationship, the adjusting portion 60 is manually rotated to drive the driving gear 531 to rotate, thereby driving the driven gear 532 to rotate, thereby driving the wrinkle cleaning device 50 to rotate; compared with using a motor to drive the direction of the wrinkle cleaning device 50, the above scheme can adapt to the internal environment of the automatic pressure relief bellows stop valve 100 for a long time (the automatic pressure relief bellows stop valve 100 is sometimes used for some flammable and explosive media, so using a motor may cause the automatic pressure relief bellows stop valve 100 to explode).

[0058] Optionally, in some embodiments, see Figures 1 to 3 The adjusting portion 60 includes a first adjusting member 61 and a second adjusting member 62, wherein: The first adjusting member 61 is movably arranged in the adjusting space 103 and the adjusting through hole 104 along the axial direction. The first adjusting member 61 is sealed in the adjusting through hole 104 . The first adjusting member 61 has an internal threaded hole, and the opening direction of the internal threaded hole faces away from the valve 20 .

[0059] One end of the second adjusting member 62 facing the first adjusting member 61 has an external thread adapted to the internal threaded hole, and the end of the second adjusting member 62 with the external thread is disposed in the internal threaded hole, and the other end extends to the external space.

[0060] In which, the driving gear is arranged on the second adjusting member, and the bellows is located on the outer wall of the first adjusting member; the valve 20 is arranged at the end of the first adjusting member 61 without the internal threaded hole; the first adjusting member 61 and the second adjusting member 62 are used together to drive the valve 20 to move toward the first adjusting member 61, thereby causing the valve 20 to open the automatic pressure relief bellows stop valve 100; the first adjusting member 61 and the second adjusting member 62 are also used together to drive the valve 20 to move back toward the first adjusting member 61, thereby causing the valve 20 to close the automatic pressure relief bellows stop valve 100.

[0061] It can be understood that the first adjusting member 61 is a component used to cooperate with the second adjusting member 62 to manually control the valve 20 to open or close the automatic pressure relief bellows stop valve 100; for example, the first adjusting member 61 can be a metal rod; the second adjusting member 62 can be a metal rod.

[0062] In this arrangement, the first adjusting member 61 is manually rotated so that the second adjusting member 62 can move toward or away from the valve 20 under the cooperation of the internal and external threads, thereby causing the valve 20 to open or close the automatic pressure relief bellows stop valve 100; compared with the solution of directly connecting the connecting rod to the valve 20, the above solution can be more stable and simpler.

[0063] Optionally, see Figures 1 to 3 A mounting hole 610 is provided on the side wall of the first adjusting member 61 at one end facing the valve 20; the adjusting portion 60 further includes a connecting portion 63, a portion of which is telescopically arranged in the mounting hole 610; the valve 20 has a connecting through hole 200 and a connecting matching hole 201, and the connecting matching hole 201 is arranged on the inner side wall of the connecting through hole 200; the first adjusting member 61 is sealed and movably arranged in the connecting through hole 200; the connecting portion 63 is used to fix the valve 20 and the first adjusting member 61 in a fixed state or release the fixed state between the valve 20 and the first adjusting member 61.

[0064] It can be understood that the connecting portion 63 is a component used to fix the valve 20 to the first adjusting member 61 or release the fixed relationship between the valve 20 and the first adjusting member 61; for example, the connecting portion 63 includes a connecting member 631, a trigger member 632, a protrusion 633 and a pressure preset device 634.

[0065] With such a configuration, when the pressure in the second fluid channel 102 is greater than or equal to the trigger pressure, the connecting portion 63 releases the fixed relationship between the valve 20 and the first adjusting member 61, so that the fluid in the second fluid channel 102 pushes the valve 20, thereby opening the automatic pressure relief bellows stop valve 100; when the pressure in the second fluid channel 102 is less than the trigger pressure, the connecting portion 63 fixes the valve 20 on the first adjusting member 61, so that the staff can manually control the valve 20; compared with the solution of directly integrating the valve 20 with the first adjusting member 61, the above solution can more accurately set the trigger pressure (because the first adjusting member 61 and the second adjusting member 62 are connected by internal and external threads, there is a certain friction between the first adjusting member 61 and the second adjusting member 62, and the friction varies with the length of the connection between the first adjusting member 61 and the second adjusting member 62, so the trigger pressure cannot be accurately set. In addition, the internal and external thread connection may also cause self-locking).

[0066] In some embodiments, see Figures 1 to 3The first adjustment member 61 has a trigger hole 611 at one end located in the connecting through hole 200. The mounting hole 610 is connected to the adjustment space 103 through the trigger hole 611. The connection point between the mounting hole 610 and the trigger hole 611 is located in the middle part of the trigger hole 611. The connecting portion 63 includes a connecting member 631, a trigger member 632, a protruding member 633, and a pressure preset device 634. The connecting member 631 is telescopically disposed in the mounting hole 610 . The triggering member 632 is sealed and movably disposed in the triggering hole 611 .

[0067] The protrusion 633 is disposed on the side wall of the trigger member 632 . The protrusion 633 is used to push the connecting member 631 to partially extend into the connecting fitting hole 201 , thereby enabling the connecting member 631 to fix the first regulating member 61 and the valve 20 .

[0068] The pressure preset device 634 is disposed at an end of the trigger hole 611 away from the second fluid channel 102 , and a movable end of the pressure preset device 634 is connected to an end of the trigger member 632 away from the second fluid channel 102 .

[0069] Among them, the pressure preset device 634 is used to preset the trigger pressure of the trigger member 632. When the pressure in the second fluid channel 102 is greater than or equal to the trigger pressure, the trigger member 632 drives the protrusion 633 to move toward the pressure preset device 634, so that the protrusion 633 is disengaged from the connecting member 631, and then the connecting member 631 is completely retracted into the mounting hole 610, thereby releasing the connection relationship between the valve 20 and the first adjusting member 61; when the pressure in the second fluid channel 102 is less than the trigger pressure, the trigger member 632 drives the protrusion 633 to move back to the pressure preset device 634, so that the protrusion 633 is abutted against the connecting member 631, and then the connecting member 631 is partially extended into the connecting matching hole 201, thereby connecting the valve 20 to the first adjusting member 61.

[0070] It can be understood that the connecting member 631 is a member used to fix the valve 20 to the first adjusting member 61; the connecting member 631 can be a metal clip or a metal block. The trigger member 632 is a member used to push the protrusion 633 to move; for example, the trigger member 632 can be a metal rod or a metal block. The protrusion 633 is a member used to push the connecting member 631 partially out of the mounting hole 610; for example, the protrusion 633 can be a metal block or a metal ball. The pressure preset device 634 is a device for setting the trigger pressure; for example, the pressure preset device 634 can be a cylinder, connecting one end of the trigger member 632 to the piston of the cylinder. For another example, the pressure preset device 634 can be a spring.

[0071] With such a configuration, when the pressure in the second fluid channel 102 is greater than or equal to the trigger pressure, the liquid in the second fluid channel 102 pushes the trigger member 632 to move toward the pressure preset device 634, so that the protruding member 633 is disengaged from the connecting member 631, and the connecting member 631 can be completely retracted into the mounting hole 610, thereby releasing the connection between the valve 20 and the first regulating member 61; when the pressure in the second fluid channel 102 is less than the trigger pressure, the trigger member 632 drives the protruding member 633 to move away from the pressure preset device 634, so that the protruding member 633 abuts against the connecting member 631, and the connecting member 631 partially extends into the connecting mating hole 201, thereby connecting the valve 20 to the first regulating member 61; and directly setting the pressure sensor, control unit and power device Compared with the above scheme (the pressure sensor is arranged in the second fluid channel 102, the control unit is electrically connected to the pressure sensor and the power device respectively, the power output end of the power device is connected to the valve 20, the pressure in the second fluid channel 102 is detected by the pressure sensor, and sent to the control unit, the control unit controls the movement direction of the power output end of the power device according to the relationship between the detected pressure in the second fluid channel 102 and the trigger pressure, and then controls the valve 20 to open or close the automatic pressure relief bellows stop valve 100), the above scheme does not cause safety risks (the use of electronic control may cause leakage, and the automatic pressure relief bellows stop valve 100 may be used for flammable and explosive liquid media), the above scheme can be more stable than the scheme of setting the pressure sensor, the control unit and the power device, and its cost is lower.

[0072] In some embodiments, see Figures 1 to 3 The sealing portion of the trigger member 632 is located between the mounting hole 610 and the second fluid channel 102 .

[0073] In this configuration, the sealing portion of the trigger member 632 is disposed between the mounting hole 610 and the second fluid channel 102 to prevent liquid from entering the mounting hole 610 and thereby affecting the trigger pressure.

[0074] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. An automatic pressure relief bellows stop valve, characterized in that: include, a valve body, the valve body having a first fluid channel, a second fluid channel and an adjustment space, the first fluid channel being connected to the second fluid channel through the adjustment space; a valve movably disposed in the regulating space, and the valve is used to open or close the automatic pressure relief bellows stop valve; a bellows, one end of which is fixedly connected to the valve, and the other end of which is fixedly connected to the top wall of the regulating space; a linkage portion, a portion of which is disposed on the top wall of the regulating space and another portion of which is disposed on the valve; as well as a wrinkle cleaning device, movably disposed on a portion of the inner wall of the linkage portion located away from the valve and located on one side of the bellows, for cleaning the outer wall of the bellows; In which, the valve can drive the pleat cleaning device away from the bellows through the linkage part while opening the automatic pressure relief bellows stop valve; the valve can also drive the pleat cleaning device close to the bellows through the linkage part while closing the automatic pressure relief bellows stop valve.

2. The automatic pressure relief bellows stop valve according to claim 1, characterized in that: The linkage part includes a linkage body, an abutment and a movable guide rail, the linkage body is arranged on the valve, the abutment is arranged at one end of the linkage body away from the valve, and the distance between the abutment and the bellows is smaller than the distance between the linkage body and the bellows; the movable guide rail is arranged on the inner wall of the adjustment space away from the valve, and the direction of the movable guide rail is toward the bellows; the pleat cleaning device includes a pleat cleaning body, a cleaning member and an abutment fitting member, one end of the pleat cleaning body is movably arranged in the track of the movable guide rail; the cleaning member is arranged on the pleat cleaning body, and when the cleaning member contacts the bellows, its contact surface can cover the pleats of the entire bellows; the abutment fitting member is arranged at the other end of the pleat cleaning body, and the distance between the abutment fitting member and the linkage body is smaller than the distance between the pleat cleaning body and the linkage body; In which, the linkage body is used to drive the abutment to move toward the movable guide rail when the valve opens the automatic pressure relief bellows stop valve, so that the abutment fitting part is separated from the abutment fitting part; the linkage body is also used to drive the abutment to move back to the movable guide rail when the valve closes the automatic pressure relief bellows stop valve, so as to drive the abutment fitting part to abut against the abutment fitting, thereby moving the wrinkle cleaning body toward the bellows.

3. The automatic pressure relief bellows stop valve according to claim 2, characterized in that: The linkage part also includes an elastic element, which can be stretchably arranged in the track of the movable guide rail, one end of the elastic element is connected to the end of the movable guide rail away from the bellows, and the other end is connected to the pleat cleaning device; the elastic element is used to drive the pleat cleaning body to move back toward the bellows when the abutting fitting part is separated from the abutting part.

4. The automatic pressure relief bellows stop valve according to claim 1, characterized in that: The valve body also has an adjusting through hole, the two ends of which are respectively connected to the adjusting space and the external space; the automatic pressure relief bellows stop valve also includes an adjusting part, which is arranged in the adjusting space, one end of the adjusting part located in the adjusting space is connected to the valve, and the other end extends to the external space through the adjusting through hole, and the adjusting part is used to manually control the valve.

5. The automatic pressure relief bellows stop valve according to claim 4, characterized in that: The wrinkle cleaning device comprises: a pleat cleaning body, one end of which is laterally movably disposed on a portion of the inner wall of the linkage portion located away from the valve in the regulating space; a transmission mechanism, the transmission mechanism comprising a first transmission portion and a second transmission portion; the first transmission portion being provided on the pleat cleaning body, the second transmission portion being provided at a portion of the adjustment portion located within the adjustment space, and the transmission mechanism being capable of transmission when the length of the bellows is within a preset length range, and being incapable of transmission when the length of the bellows exceeds the preset length range; and A cleaning member disposed on the pleat cleaning body, wherein when the cleaning member contacts the bellows, the contact surface thereof can cover the entire pleat of the bellows; Among them, when the valve is manually opened, the adjustment part is used to drive the pleat cleaning body to rotate through the transmission action of the transmission mechanism when the length of the bellows is within a preset range, thereby enabling the cleaning part to be relatively displaced with the pleats of the bellows.

6. The automatic pressure relief bellows stop valve according to claim 5, characterized in that: The adjusting portion is capable of rotating around its own axis, and the transmission mechanism includes: a driving gear, disposed on the adjusting portion; and A driven gear is provided on the wrinkle cleaning body, and the driven gear is capable of meshing with the driving gear; Wherein, the valve is used to push the driven gear to move to engage with the driving gear through the linkage part and the pleat cleaning body when the length of the bellows is within a preset range; the valve is also used to push the driven gear to move to separate from the driving gear through the linkage part and the pleat cleaning body when the length of the bellows is greater than the preset range.

7. The automatic pressure relief bellows stop valve according to claim 6, characterized in that: The adjustment unit includes: a first adjusting member, movably disposed in the adjusting space and the adjusting through hole along an axial direction, the first adjusting member being sealed in the adjusting through hole; the first adjusting member having an internal threaded hole, and an opening direction of the internal threaded hole facing away from the valve; and a second adjusting member, wherein one end of the second adjusting member facing the first adjusting member has an external thread adapted to the internal threaded hole, and the end of the second adjusting member having the external thread is disposed in the internal threaded hole, and the other end of the second adjusting member extends to the external space; In which, the driving gear is arranged on the second adjusting member, and the bellows is located on the outer wall of the first adjusting member; the valve is arranged at the end of the first adjusting member without the internal threaded hole; the first adjusting member and the second adjusting member are used together to drive the valve to move toward the first adjusting member, thereby causing the valve to open the automatic pressure relief bellows stop valve; the first adjusting member and the second adjusting member are also used together to drive the valve to move back toward the first adjusting member, thereby causing the valve to close the automatic pressure relief bellows stop valve.

8. The automatic pressure relief bellows stop valve according to claim 7, characterized in that: A mounting hole is provided on the side wall of the first adjusting member at one end facing the valve; the adjusting portion further comprises a connecting portion, a portion of which is telescopically arranged in the mounting hole; the valve has a connecting through hole and a connecting mating hole, and the connecting mating hole is arranged on the inner side wall of the connecting through hole; the first adjusting member is sealed and movably arranged in the connecting through hole; the connecting portion is used to fix the valve and the first adjusting member in a fixed state or release the fixed state between the valve and the first adjusting member.

9. The automatic pressure relief bellows stop valve according to claim 8, characterized in that: A trigger hole is formed at one end of the first adjustment member located in the connecting through hole, the mounting hole and the adjustment space are connected through the trigger hole, and the connection point between the mounting hole and the trigger hole is located in the middle part of the trigger hole, and the connecting portion includes: a connecting member, telescopically disposed in the mounting hole; a triggering member, sealed and movably disposed in the triggering hole; a protrusion, disposed on a side wall of the trigger member, the protrusion being used to push the connecting member partially into the connecting fitting hole, thereby enabling the connecting member to fix the first regulating member to the valve; and a pressure preset device, disposed at an end of the trigger hole away from the second fluid channel, wherein a movable end of the pressure preset device is connected to an end of the trigger member away from the second fluid channel; In which, the pressure preset device is used to preset the trigger pressure of the trigger member. When the pressure in the second fluid channel is greater than or equal to the trigger pressure, the trigger member drives the protrusion to move toward the pressure preset device so that the protrusion is disengaged from the connecting member, and then the connecting member is completely retracted into the mounting hole, thereby releasing the connection relationship between the valve and the first adjusting member; when the pressure in the second fluid channel is less than the trigger pressure, the trigger member drives the protrusion to move back to the pressure preset device so that the protrusion is abutted against the connecting member, and then the connecting member is partially extended into the connecting mating hole, thereby connecting the valve to the first adjusting member.

10. The automatic pressure relief bellows stop valve according to claim 9, characterized in that: The sealing portion of the trigger member is located between the mounting hole and the second fluid channel.

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