CN210318626U

CN210318626U - Manual diaphragm valve with self-locking structure

Info

Publication number: CN210318626U
Application number: CN201921225756.0U
Authority: CN
Inventors: 陈攀
Original assignee: Zhejiang Amy Fluid Technology Co Ltd
Current assignee: Zhejiang Amy Fluid Technology Co Ltd
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-04-14
Anticipated expiration: 2029-07-31

Abstract

The utility model relates to a diaphragm valve technical field just discloses a manual diaphragm valve with self-locking structure, which comprises a valve body, the joint is protruding seted up at the top of valve body, the bellied top activity joint of joint has the tetrafluoro diaphragm, the top activity joint of tetrafluoro diaphragm has the rubber diaphragm, the side activity hinge at valve body top has articulated mounting, articulated mounting's top fixedly connected with valve gap, the bolt is installed to the top screw thread of the other end of valve gap, the bottom of bolt runs through the valve gap and extends to the top of valve body. This manual diaphragm valve with auto-lock structure can carry out better fixed to rubber diaphragm and tetrafluoro diaphragm through the joint arch, need not to punch at rubber diaphragm and tetrafluoro diaphragm and fix on the bolt, and then reduces the manufacturing procedure of rubber diaphragm and tetrafluoro diaphragm, makes rubber diaphragm and tetrafluoro diaphragm connection effect better through the cooperation of movable seat and connection valve clack.

Description

Manual diaphragm valve with self-locking structure

Technical Field

The utility model relates to a diaphragm valve technical field specifically is a manual diaphragm valve with self-locking structure.

Background

The diaphragm valve is a stop valve which uses a diaphragm as an opening and closing part to close a flow passage, cut off fluid and separate an inner cavity of a valve body from an inner cavity of a valve cover, the diaphragm is made of elastic, corrosion-resistant and non-permeable materials such as rubber, plastic and the like, the valve body is made of multipurpose plastic, glass fiber reinforced plastic, ceramic or metal lining rubber materials, the diaphragm valve is simple in structure, good in sealing and corrosion-resistant performance and small in fluid resistance, is used for a medium which is high in low pressure, low temperature and corrosivity and contains suspended substances, is divided into a ridge type, a stop type, a gate type and the like according to the structural form, and is divided into a manual type.

The diaphragm valve that uses at present needs regularly to change the diaphragm in the in-process that uses, however the diaphragm that uses at present need with carry out the bolt and fix and guarantee its gas tightness, the processing of membrane just needs the process of punching more once like this, and the diaphragm valve need dismantle whole valve gap troublesome in the in-process of dismouting in addition, the diaphragm valve probably can lead to the valve rod action and then make the diaphragm valve open to lead to the fluid to produce the self-flowing because the valve rod does not carry out the auto-lock after closing.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a manual diaphragm valve with from keying structure possesses that the installation of diaphragm is fairly simple, and the gas tightness is good, can carry out the auto-lock and prevent that non-artificial from opening, the advantage, the problem of mentioning in the above background art has been solved.

The utility model provides a following technical scheme: a manual diaphragm valve with a self-locking structure comprises a valve body, wherein a clamping protrusion is arranged at the top of the valve body, a polytetrafluoroethylene membrane is movably clamped at the top of the clamping protrusion, the top of the polytetrafluoroethylene membrane is movably clamped with a rubber membrane, a hinge device is movably hinged to the side face of the top of the valve body, a valve cover is fixedly connected to the top of the hinge device, a bolt is installed on the top of the other end of the valve cover in a threaded manner, the bottom of the bolt penetrates through the valve cover and extends to the top of the valve body, the bottom of the valve cover is in contact with the top of the rubber membrane, a threaded groove is formed in the valve cover, a valve rod is installed on the internal thread of the threaded groove, the bottom of the valve rod extends to the inside of the valve cover, a movable seat is fixedly connected with the valve cover, a connecting valve clack is movably clamped on, the top of the valve cover is movably connected with a connecting seat, a screw is installed on the side face of the connecting seat in a threaded manner, the bottom of the screw penetrates through the connecting seat and is in threaded connection with the top of the valve cover, a section of the top of the valve rod, which is positioned inside the connecting seat, is provided with a spiral groove, the front of the spiral groove is provided with a clamping hole, a movable cavity is arranged inside the connecting seat, a clamping rod is movably clamped inside the movable cavity, the other end of the clamping rod penetrates through the connecting seat and extends to the side face of the spiral groove, one end of the clamping rod, which is positioned inside the movable cavity, is fixedly connected with a push plate, the other end of the push plate is fixedly connected with a pull rod, the other end of the pull rod extends to the outer side of the connecting seat, a spring is movably sleeved on, the top of the valve rod penetrates through the connecting seat and extends to the upper part of the connecting seat, and a hand wheel is fixedly connected with the top of the valve rod.

Preferably, the bottom of the valve cover is provided with a clamping protrusion which is matched with the rubber diaphragm and is the same as the clamping protrusion on the valve body.

Preferably, the top of the tetrafluoro membrane is connected with a bulge, and the bottom of the rubber membrane is provided with a groove matched with the bulge.

Preferably, the outer diameter value of the spring is 30mm, the inner diameter value is 25mm, and the steel grade value is 2 kg/cm.

Preferably, the bottom parts of the rubber diaphragm and the tetrafluoro diaphragm have the same longitudinal section shape as the inner convex longitudinal section shape of the valve body.

Compared with the prior art, the utility model discloses possess following beneficial effect:

1. this manual diaphragm valve with auto-lock structure can carry out better fixed to rubber diaphragm and tetrafluoro diaphragm through the joint arch, need not to punch at rubber diaphragm and tetrafluoro diaphragm and fix on the bolt, and then reduces the manufacturing procedure of rubber diaphragm and tetrafluoro diaphragm, makes rubber diaphragm and tetrafluoro diaphragm connection effect better through the cooperation of movable seat and connection valve clack.

2. This manual diaphragm valve with auto-lock structure makes this manual diaphragm valve directly can carry out the auto-lock and then guarantee that this diaphragm valve can not open under the exogenic action after closing through the combined action of helicla flute and joint hole and joint pole and spring, makes the valve gap need not to take off after opening and then guarantees that valve gap and valve body complex effect are better through hinge means.

Drawings

FIG. 1 is a sectional view of the present invention;

fig. 2 is an enlarged view of the structure a of the present invention.

In the figure: 1. a valve body; 2. clamping the bulges; 3. a valve cover; 4. a bolt; 5. a helical groove; 6. a thread groove; 7. a hand wheel; 8. a connecting seat; 9. a valve stem; 10. a movable seat; 11. connecting the valve clack; 12. a rubber diaphragm; 13. a hinge device; 14. a tetrafluoro membrane; 15. a clamping hole; 16. a clamping and connecting rod; 17. pushing the plate; 18. a screw; 19. a pull rod; 20. a spring; 21. a movable cavity.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1-2, a manual diaphragm valve with self-locking structure, including a valve body 1, the top of the valve body 1 is provided with a clamping protrusion 2, the top of the clamping protrusion 2 is movably clamped with a tetrafluoro membrane 14, the top of the tetrafluoro membrane 14 is movably clamped with a rubber membrane 12, the top of the tetrafluoro membrane 14 is connected with a protrusion, the bottom of the rubber membrane 12 is provided with a groove matched with the protrusion, thus ensuring better laminating effect between the rubber membrane 12 and the tetrafluoro membrane 14, the rubber membrane 12 and the tetrafluoro membrane 14 can be better fixed by the clamping protrusion 2, the rubber membrane 12 and the tetrafluoro membrane 14 do not need to be punched and fixed on a bolt 4, and further reducing the processing procedures of the rubber membrane 12 and the tetrafluoro membrane 14, the side surface of the top of the valve body 1 is movably hinged with a hinge device 13, the top of the hinge device 13 is fixedly connected with a valve cover 3, the valve cover 3 is enabled to be free from falling The combined effect is better, the bottom of the valve cover 3 is provided with a clamping bulge 2 which is matched with the rubber diaphragm 12 and is the same as that on the valve body 1, so that the top and the bottom of a composite diaphragm formed by the rubber diaphragm 12 and the PTFE diaphragm 14 can be clamped to prevent the movement, the longitudinal section shapes of the bottoms of the rubber diaphragm 12 and the PTFE diaphragm 14 are the same as that of the bulge inside the valve body 1, thus the bottom of the PTFE diaphragm 14 is not greatly deformed when contacting with the bottom of the inner cavity of the valve body, the service lives of the PTFE diaphragm 14 and the rubber diaphragm 12 are prolonged, the top thread of the other end of the valve cover 3 is provided with a bolt 4, the bottom of the bolt 4 penetrates through the valve cover 3 and extends to the top of the valve body 1, the bottom of the valve cover 3 contacts with the top of the rubber diaphragm 12, the inside of the valve cover 3 is provided with a thread groove 6, the bottom of the valve rod 9 extends to the inside of the valve cover 3 and is fixedly connected with a movable seat 10, the outer surface of the bottom of the movable seat 10 is movably clamped with a connecting valve clack 11, the bottom of the connecting valve clack 11 is movably clamped with the top of a rubber diaphragm 12, the rubber diaphragm 12 and a polytetrafluoroethylene diaphragm 14 are better connected through the cooperation of the movable seat 10 and the connecting valve clack 11, the top of the valve cover 3 is movably connected with a connecting seat 8, a screw 18 is installed on the side surface of the connecting seat 8 through a thread, the bottom of the screw 18 penetrates through the connecting seat 8 and is connected with the top of the valve cover 3 through a thread, a section of the top of the valve rod 9, which is positioned inside the connecting seat 8, is provided with a spiral groove 5, the front of the spiral groove 5 is provided with a clamping hole 15, a movable cavity 21 is formed inside the connecting seat, clamping rod 16 is located the inside one end fixedly connected with push pedal 17 of activity chamber 21, the other end fixedly connected with pull rod 19 of push pedal 17, the other end of pull rod 19 extends to the outside of connecting seat 8, the surface movable sleeve of pull rod 19 is equipped with spring 20, spring 20's external diameter value is 30mm, the internal diameter value is 25mm, the steel degree value is 2kg/cm, make this manual diaphragm valve directly can carry out the auto-lock and then guarantee that this diaphragm valve can not open under the exogenic action after closing through helicla flute 5 and joint hole 15 and clamping rod 16 and spring 20's combined action, spring 20's one end contacts with one side of push pedal 17, spring 20's the other end contacts with the left surface of activity chamber 21 inner chamber, the top of valve rod 9 runs through connecting seat 8 and extends to connecting seat 8's top and fixedly connected with hand wheel 7.

The working principle is that the rubber diaphragm 12 and the PTFE diaphragm 14 are clamped when being installed, one end of a composite diaphragm generated by the joint of the rubber diaphragm 12 and the PTFE diaphragm 14 is clamped with the clamping bulge 2, the valve cover 3 is covered on the valve body 1 at the moment, the bottom of the connecting valve clack 11 is clamped with the top of the rubber diaphragm 12, the bolt 4 is screwed down, when the hand wheel 7 is screwed, the valve rod 9 is driven to rotate, at the moment, the valve rod 9 moves downwards under the action of the thread groove 6, so that the movable seat 10 drives the connecting valve clack 11 to act on the rubber diaphragm 12 to close the valve, at the moment, the clamping rod 16 is movably clamped with the spiral groove 5 until the clamping rod 16 is clamped with the clamping hole 15, the spring 20 drives the push plate 17 to act on the clamping rod 16 to perform self-locking, when the diaphragm valve needs to be opened, the valve rod 9 can be screwed to open the valve by pulling the pull rod 19 to drive the clamping rod 16 to be far away from the clamping hole.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a manual diaphragm valve with from keying structure, includes valve body (1), its characterized in that: the top of valve body (1) has been seted up the joint arch (2), the top activity joint of joint arch (2) has tetrafluoro diaphragm (14), the top activity joint of tetrafluoro diaphragm (14) has rubber diaphragm (12), the side activity hinge joint at valve body (1) top has articulated mounting (13), the top fixedly connected with valve gap (3) of articulated mounting (13), bolt (4) are installed to the top screw thread of the other end of valve gap (3), the bottom of bolt (4) runs through valve gap (3) and extends to the top of valve body (1), the bottom of valve gap (3) contacts with the top of rubber diaphragm (12), thread groove (6) has been seted up to the inside of valve gap (3), the internal thread of thread groove (6) installs valve rod (9), the bottom of valve rod (9) extends to the inside and the fixedly connected with movable seat (10) of valve gap (3), the outer surface activity joint of sliding seat (10) bottom has connection valve clack (11), the bottom of connection valve clack (11) and the top activity joint of rubber diaphragm (12), the top swing joint of valve gap (3) has connecting seat (8), the side threaded mounting of connecting seat (8) has screw (18), the bottom of screw (18) run through connecting seat (8) and with the top threaded connection of valve gap (3), the top of valve rod (9) is located one section of connecting seat (8) inside and has seted up helicla flute (5), joint hole (15) have been seted up in the front of helicla flute (5), movable chamber (21) have been seted up to the inside of connecting seat (8), the inside activity joint in movable chamber (21) has joint pole (16), the other end of joint pole (16) runs through connecting seat (8) and extends to the side of helicla flute (5), joint pole (16) are located the inside one end fixedly connected with push pedal (17) in activity chamber (21), the other end fixedly connected with pull rod (19) of push pedal (17), the other end of pull rod (19) extends to the outside of connecting seat (8), the surface activity cover of pull rod (19) is equipped with spring (20), the one end of spring (20) contacts with one side of push pedal (17), the other end of spring (20) contacts with the left surface of activity chamber (21) inner chamber, the top of valve rod (9) runs through connecting seat (8) and extends to top and fixedly connected with hand wheel (7) of connecting seat (8).

2. The manual diaphragm valve with self-locking structure of claim 1, wherein: the bottom of the valve cover (3) is provided with a clamping protrusion (2) which is matched with the rubber diaphragm (12) and is the same as the valve body (1).

3. The manual diaphragm valve with self-locking structure of claim 1, wherein: the top of the tetrafluoro membrane (14) is connected with a bulge, and the bottom of the rubber membrane (12) is provided with a groove matched with the bulge.

4. The manual diaphragm valve with self-locking structure of claim 1, wherein: the outer diameter value of the spring (20) is 30mm, the inner diameter value is 25mm, and the steel degree value is 2 kg/cm.

5. The manual diaphragm valve with self-locking structure of claim 1, wherein: the bottom parts of the rubber diaphragm (12) and the tetrafluoro diaphragm (14) have the same longitudinal section shape as the inner convex longitudinal section shape of the valve body (1).