CN210715989U

CN210715989U - Pneumatic butt-clamping soft sealing butterfly valve

Info

Publication number: CN210715989U
Application number: CN201921749269.4U
Authority: CN
Inventors: 黄斯毅; 尤志伟; 陈开钟; 谢志伟
Original assignee: Fujian Minshan Fire Fighting Co ltd
Current assignee: Fujian Minshan Fire Fighting Co ltd
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2020-06-09
Anticipated expiration: 2029-10-18

Abstract

The utility model discloses a pneumatic soft sealing butterfly valve of butt clamp, which comprises a valve body, equal rigid coupling has the bent plate, and is a plurality of about the left and right sides of valve body fixed establishment is all installed to the inner wall of bent plate, sealing mechanism is installed to the inner wall of valve body, both sides are rotated through first bearing and are connected with the round bar about the front of valve body. This pneumatic double-layered soft sealing butterfly valve, the problem of current pneumatic double-layered soft sealing butterfly valve's junction unstable inadequately has been solved through fixed establishment, long-time gap has been avoided producing, the equipment damage has been prevented, cost of maintenance has been reduced, the normal work of equipment has been guaranteed, and solved the problem that long-time rubber circle damaged inconvenient change easily through sealing mechanism, the equipment leakproofness has been guaranteed, guarantee the normal work of equipment, the slower problem of original equipment closing speed has been solved through control mechanism simultaneously, prevent the liquid outflow, the waste has been avoided, the cost is reduced, the practicability is improved, and the promotion is facilitated.

Description

Pneumatic butt-clamping soft sealing butterfly valve

Technical Field

The utility model belongs to the technical field of sealed butterfly valve, specifically be a pneumatic butt clamp soft seal butterfly valve.

Background

The pneumatic butt-clamping soft sealing butterfly valve is an eccentric metal sealing structure, the sealing form is metal-to-metal sealing, a replaceable metal sealing ring is used for metal sealing, and a stainless steel plate and a graphite composite plate sealing ring are used for metal sealing. But the junction of current pneumatic pair clamp soft seal butterfly valve is stable inadequately, produces the gap easily after long-time the use, leads to equipment to damage, improves cost of maintenance, influences the normal work of equipment, and the rubber circle damages inconvenient change easily after long-time the use, leads to equipment leakproofness to reduce, causes equipment can't carry out normal work, and original equipment closing speed is slower simultaneously, causes liquid to flow easily, causes the waste, and the improvement cost has reduced the practicality, is not conform to modern's user demand.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pneumatic soft sealing butterfly valve of butt clamp to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a pneumatic butt clamp soft seal butterfly valve, includes the valve body, equal rigid coupling has the bent plate, and is a plurality of about the left and right sides of valve body fixed establishment is all installed to the inner wall of bent plate, sealing mechanism is installed to the inner wall of valve body, both sides are rotated through first bearing about the front of valve body and are connected with the round bar, the outer wall of round bar and the inner wall looks rigid coupling of plectane, control mechanism is installed at the top of round bar, control mechanism's top rigid coupling has pneumatic actuator.

Preferably, fixed establishment includes first threaded rod, handle, second bearing and bent plate, the outer wall of first threaded rod and the top threaded connection of bent plate, the top of first threaded rod and the bottom rigid coupling of handle, the bottom of first threaded rod is passed through the top rotation of second bearing and bent plate and is linked to each other, the left side of bent plate and the right side slip joint of bent plate.

Preferably, the curved plate and the bent plate form a sliding mechanism.

Preferably, sealing mechanism includes recess, lug and rubber circle, the outer wall of recess and the inner wall looks rigid coupling of valve body, the equal rigid coupling in both sides has the lug about the inner wall of recess, two the inboard of lug all with the top interference fit of rubber circle, the inner wall of rubber circle all laminates with the outer wall of plectane mutually.

Preferably, the control mechanism comprises a second threaded rod, a short rod, a transverse plate, a third bearing, a square frame and a torsion spring, the outer wall of the second threaded rod is in threaded connection with the top of the round rod, the top of the round rod is fixedly connected with the bottom of the short rod, the lower side of the outer wall of the short rod is fixedly connected with the inner wall of the transverse plate, the top of the outer wall of the short rod is rotatably connected with the top of the square frame through the third bearing, the bottom of the square frame abuts against the top of the valve body, the outer wall of the short rod is sleeved with the inner wall of the torsion spring, and the upper side and the lower side of the torsion spring are fixedly connected with the top of the transverse plate and the top of the inner wall of the square.

Preferably, the short rod, the third bearing and the square frame form a rotating mechanism.

Compared with the prior art, the beneficial effects of the utility model are that: this pneumatic double-layered soft sealing butterfly valve, the problem of current pneumatic double-layered soft sealing butterfly valve's junction unstable inadequately has been solved through fixed establishment, long-time use has been avoided producing the gap, equipment damage has been prevented, cost of maintenance has been reduced, equipment normal work has been guaranteed, and solved long-time use rubber circle through sealing mechanism and damaged the inconvenient problem of changing easily, equipment leakproofness has been guaranteed, guarantee equipment normal work, the slower problem of original equipment closing speed has been solved through control mechanism simultaneously, liquid outflow has been prevented, the waste is avoided, the cost is reduced, the practicability is improved, and the promotion is facilitated.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the connection relationship between the first threaded rod, the handle and the second bearing in FIG. 1;

FIG. 3 is a schematic view of the connection structure of the groove, the bump and the rubber ring in FIG. 1;

fig. 4 is a schematic view of the connection relationship between the second threaded rod, the short rod and the transverse plate in fig. 1.

In the figure: 1. a valve body; 2. a fixing mechanism; 201. a first threaded rod; 202. a handle; 203. a second bearing; 204. a curved plate; 3. a sealing mechanism; 301. a groove; 302. a bump; 303. a rubber ring; 4. a control mechanism; 401. a second threaded rod; 402. a short bar; 403. a transverse plate; 404. a third bearing; 405. a square frame; 406. a torsion spring; 5. bending a plate; 6. a pneumatic actuator; 7. a round bar; 8. a first bearing; 9. a circular plate.

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.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a pneumatic butt clamp soft seal butterfly valve, including valve body 1, equal rigid coupling has bent plate 5 about the left and right sides of valve body 1, fixed establishment 2 is all installed to the inner wall of a plurality of bent plates 5, sealing mechanism 3 is installed to the inner wall of valve body 1, both sides rotate through first bearing 8 about the front of valve body 1 and are connected with round bar 7, round bar 7 atress rotates through first bearing 8, the outer wall of round bar 7 and the inner wall looks rigid coupling of plectane 9, control mechanism 4 is installed at the top of round bar 7, control mechanism 4's top rigid coupling has pneumatic actuator 6, pneumatic actuator 6's model is HGV.

The fixing mechanism 2 comprises a first threaded rod 201, a handle 202, a second bearing 203 and a curved plate 204, the outer wall of the first threaded rod 201 is in threaded connection with the top of the curved plate 5, the top of the first threaded rod 201 is fixedly connected with the bottom of the handle 202, the handle 202 facilitates the rotation of the first threaded rod 201, the bottom of the first threaded rod 201 is rotatably connected with the top of the curved plate 204 through the second bearing 203, the first threaded rod 201 is stressed to rotate through the second bearing 203, the left side of the curved plate 204 is in sliding clamping connection with the right side of the curved plate 5, the curved plate 204 and the curved plate 5 form a sliding mechanism, the curved plate 204 is stressed to slide up and down through the curved plate 5, the sealing mechanism 3 comprises a groove 301, a convex block 302 and a rubber ring 303, the outer wall of the groove 301 is fixedly connected with the inner wall of the valve body 1, the upper side and the lower side of the inner wall of the groove 301 are fixedly connected with the convex blocks 302, the inner sides, the inner wall of the rubber ring 303 is attached to the outer wall of the circular plate 9 to ensure the sealing property between the circular plate 9 and the valve body 1, the control mechanism 4 comprises a second threaded rod 401, a short rod 402, a transverse plate 403, a third bearing 404, a square frame 405 and a torsion spring 406, the outer wall of the second threaded rod 401 is in threaded connection with the top of the circular rod 7, the second threaded rod 401 can be separated from the circular rod 7 by rotating, the top of the circular rod 7 is fixedly connected with the bottom of the short rod 402, the lower part of the outer wall of the short rod 402 is fixedly connected with the inner wall of the transverse plate 403, the top of the outer wall of the short rod 402 is rotatably connected with the top of the square frame 405 through the third bearing 404, the short rod 402 is forced to rotate through the third bearing 404, the bottom of the square frame 405 is abutted against the top of the valve body 1, the outer wall of the short rod 402 is sleeved with the inner wall of the torsion spring 406, the upper and lower two sides of the torsion, after being stressed and rotated, the short rod 402 rebounds through the torsion spring 406, the short rod 402, the third bearing 404 and the square frame 405 form a rotating mechanism, and the short rod 402 is stressed and rotated through the third bearing 404 on the top of the square frame 405.

In this example, when the butterfly valve is used, the second threaded rod 401 is now connected to the top of the round rod 7 by a thread, so that the square frame 405 abuts against the top of the valve body 1, then the valve body 1 is communicated with an external pipeline, then the handle 202 is rotated to drive the first threaded rod 201 to rotate downwards, the rotating first threaded rod 201 enables the curved plate 204 to slide downwards on the inner wall of the curved plate 5 through the second bearing 203, after the sliding curved plate 204 abuts against the joint between the valve body 1 and the external pipeline, the handle 202 is stopped rotating, so as to ensure the stable connection between the valve body 1 and the external pipeline, then the external pipeline of the pneumatic actuator 6 is communicated, gas is introduced, so that the pneumatic actuator 6 works to drive the bottom short rod 402 to rotate through the third bearing 404, the rotating short rod 402 drives the round rod 7 to rotate through the first bearing 8 through the second threaded rod 401, so as to drive the round rod 7 to rotate, so as to open the valve body 1 when the round plate 9 rotates, after the pneumatic actuator 6 is stopped, the torsion spring 406 provides elastic force to drive the short rod 402 to rotate in the reverse direction through the transverse plate 403, and further drive the round rod 7 to rotate back, so that the round plate 9 is closed, and the water flow is stopped.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

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 pneumatic butt clamp soft seal butterfly valve, includes valve body (1), its characterized in that: equal rigid coupling has bent plate (5), a plurality of from top to bottom in the left and right sides of valve body (1) fixed establishment (2) are all installed to the inner wall of bent plate (5), sealing mechanism (3) are installed to the inner wall of valve body (1), both sides rotate through first bearing (8) about the front of valve body (1) and are connected with round bar (7), the outer wall of round bar (7) and the inner wall looks rigid coupling of plectane (9), control mechanism (4) are installed at the top of round bar (7), the top rigid coupling of control mechanism (4) has pneumatic actuator (6).

2. The pneumatic butt-clamping soft seal butterfly valve according to claim 1, characterized in that: fixed establishment (2) include first threaded rod (201), handle (202), second bearing (203) and bent plate (204), the outer wall of first threaded rod (201) and the top threaded connection of bent plate (5), the top of first threaded rod (201) and the bottom rigid coupling of handle (202), the bottom of first threaded rod (201) is passed through second bearing (203) and is rotated with the top of bent plate (204) and link to each other, the left side of bent plate (204) and the right side slip joint of bent plate (5).

3. The pneumatic butt-clamping soft seal butterfly valve according to claim 2, wherein: the curved plate (204) and the curved plate (5) form a sliding mechanism.

4. The pneumatic butt-clamping soft seal butterfly valve according to claim 1, characterized in that: sealing mechanism (3) include recess (301), lug (302) and rubber circle (303), the outer wall of recess (301) and the inner wall looks rigid coupling of valve body (1), the equal rigid coupling in both sides has lug (302) about the inner wall of recess (301), two the inboard of lug (302) all with the top interference fit of rubber circle (303), the inner wall of rubber circle (303) all laminates with the outer wall of plectane (9) mutually.

5. The pneumatic butt-clamping soft seal butterfly valve according to claim 1, characterized in that: the control mechanism (4) comprises a second threaded rod (401), a short rod (402), a transverse plate (403), a third bearing (404), a square frame (405) and a torsion spring (406), the outer wall of the second threaded rod (401) is in threaded connection with the top of a round rod (7), the top of the round rod (7) is fixedly connected with the bottom of the short rod (402), the lower portion of the outer wall of the short rod (402) is fixedly connected with the inner wall of the transverse plate (403), the top of the outer wall of the short rod (402) is rotatably connected with the top of the square frame (405) through the third bearing (404), the bottom of the square frame (405) is tightly abutted to the top of the valve body (1), the outer wall of the short rod (402) is sleeved with the inner wall of the torsion spring (406), and the upper side and the lower side of the torsion spring (406) are fixedly connected with the top of the transverse plate (403) and the top of the inner wall of the square frame (405) respectively.

6. The pneumatic butt-clamping soft seal butterfly valve according to claim 5, wherein: the short rod (402), the third bearing (404) and the square frame (405) form a rotating mechanism.