CN216923235U

CN216923235U - Aluminum butterfly valve with double eccentric structures

Info

Publication number: CN216923235U
Application number: CN202220486726.0U
Authority: CN
Inventors: 盛波
Original assignee: Kaidu Shanghai Fluid Technology Co ltd
Current assignee: Kaidu Shanghai Fluid Technology Co ltd
Priority date: 2022-03-08
Filing date: 2022-03-08
Publication date: 2022-07-08
Anticipated expiration: 2032-03-08

Abstract

The utility model discloses an aluminum butterfly valve with a double eccentric structure, which comprises a valve body; the valve body is internally provided with a valve clack, and an anti-falling mechanism is arranged below the rear side of the valve clack; according to the utility model, the opening and closing mechanism is connected above the valve body through the extension rod, if the valve is required to be opened, the rotating disc is rotated to drive the scroll rod to rotate, the fixed rod on one side of the scroll rod is driven to rotate in the rotation process of the scroll rod, and the top of the turbine is clamped with the top of the valve rod, so that the sealing ring at the bottom of the valve rod is driven to rotate for 90 degrees, the cavities on the left side and the right side of the valve body are communicated, liquid in the inner cavities on the left side and the right side of the valve body is circulated, and the scroll rod and the fixed rod rotate through the turbine, so that external force can act on the joint of the scroll rod and the turbine to buffer the external force, and the external force is prevented from directly acting on the joint of the connecting rod and the thread block, the condition that the connection rod and the thread block in the fixed rod are broken due to uneven stress is avoided, and the service life of the device is prolonged.

Description

Aluminum butterfly valve with double eccentric structures

Technical Field

The utility model relates to the technical field of butterfly valves, in particular to an aluminum butterfly valve with a double-eccentric structure.

Background

The opening and closing piece of butterfly valve is the butterfly plate valve disc of a disc, it is rotatory around the axis of valve rod in the valve body, thereby reach the purpose of opening and close or adjusting, the butterfly valve of closed condition passes through the inseparable laminating of sealed face between valve disc and the disk seat and realizes sealed liquid stream that blocks, the inseparable laminating of sealed face between valve disc and the disk seat needs to rely on great drive power to produce a certain amount of elastic deformation, sealed face extrusion is tighter, sealed effect is better, through the retrieval, the utility model of "low temperature welding formula double eccentric aluminium butterfly valve" of application number "CN 103375596A", including the valve body, the valve rod, valve clack and pipe orifice, though can alleviate the opening moment of valve clack, reduce wearing and tearing, improve the disk seat life, however, in the use, still have following shortcoming:

1. external force directly acts on the connecting part of the valve rod and the valve clack in the existing aluminum butterfly valve, and when the external force is uneven, the valve rod and the valve clack are broken, so that the service life of the device is influenced.

2. The valve rod is connected above the valve clack of the existing aluminum butterfly valve, and the valve clack is installed in the inner cavity of the valve, so that the bottom of the valve clack cannot be connected with the bottom of the valve, and the condition that the valve clack is separated from the valve can occur in the process of long-term impact of water flow, thereby influencing the normal use of the device.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to an aluminum butterfly valve with a double eccentric structure to solve the above problems.

In order to achieve the purpose, the utility model provides the following technical scheme: an aluminum butterfly valve with a double eccentric structure comprises a valve body; the valve body is internally provided with a valve clack, an anti-falling mechanism is arranged below the rear side of the valve clack, and an opening and closing mechanism is connected above the valve body through an extension rod;

the opening and closing mechanism comprises a fixed block, a placing groove, a fixed rod, a turbine, a worm rod and a rotating disc, wherein the placing groove is formed in the fixed block, the worm rod is installed in the placing groove through a connecting sleeve, one end of the worm rod extends to the outer side of the fixed block and is fixedly connected with the rotating disc, and one side of the turbine is meshed and connected with the turbine on the surface of the fixed rod;

the anti-falling mechanism comprises a screw rod, a threaded hole, a threaded rod and a water stop ring, the bottom of the valve body is provided with a mounting hole, the inside of the mounting hole is provided with the screw rod, the inner top of the screw rod is provided with the threaded hole, the inside of the threaded hole is fixedly connected with the threaded rod through a bolt, and the outer side of the threaded rod is provided with the water stop ring.

Preferably, the top of the valve body is provided with a mounting groove, and the top of the valve body is provided with an extension bar at a position corresponding to the mounting groove.

Preferably, a through groove is formed in the extension bar, a fixing rod is arranged in the through groove, and a valve rod is arranged in the fixing rod.

Preferably, one end of the bottom of the valve rod is connected with a connecting rod, and the top surface of the valve rod is provided with a rotating block.

Preferably, the side of the valve clack is provided with a sealing ring, a thread block is arranged above the rear side of the valve clack, and a connecting block is arranged at a position, corresponding to the thread block, below the rear side of the valve clack.

Preferably, the bottom of the connecting block is fixedly connected with the top of the threaded rod, and the valve rod is fixedly connected with the inner thread of the threaded block through the connecting rod.

Preferably, a rubber pad is arranged in the mounting hole, and a sealing gasket is arranged on the outer side of the joint of the mounting groove and the extension bar through a bolt.

Preferably, the side of the valve clack is attached to the inner wall of the valve body, and the size of the fixing rod is matched with that of the through groove.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the opening and closing mechanism is connected above the valve body through the extension rod, if the valve needs to be opened, the rotating disc is rotated, the rotating disc drives the worm to rotate, the fixed rod on one side of the worm is driven to rotate in the rotating process of the worm, and the top of the worm is clamped with the top of the valve rod, so that the sealing ring at the bottom of the valve rod is driven to rotate for 90 degrees, the cavities on the left side and the right side of the valve body are communicated, liquid in the inner cavities on the left side and the right side of the valve body is circulated, and because the worm and the fixed rod rotate through the worm, external force can act on the joint of the worm and the worm to buffer the external force, the external force is prevented from directly acting on the joint of the connecting rod and the thread block, the condition that the connecting rod and the thread block inside the fixed rod are broken due to uneven stress is avoided, and the service life of the device is prolonged.

2. According to the utility model, the anti-drop mechanism is arranged below the rear side of the valve clack, the valve clack is placed at a position corresponding to the mounting hole, the screw rod is inserted into the mounting hole, the screw rod is rotated to enable a threaded hole in the screw rod to correspond to the threaded rod below the connecting block, the screw rod is rotated to enable the screw rod and the threaded rod to be in threaded fixation, the valve clack is fixed into an inner cavity of the valve body, the connecting block is fixedly connected with the top of the threaded rod and is matched with the valve rod through the connecting rod and the internal threaded connection of the threaded block, the stability of the valve clack in the inner cavity of the valve body can be ensured, the valve clack is prevented from being separated from the inner cavity of the valve body in the process of water pressure impact, the normal use of the device is ensured, meanwhile, the rubber pad is arranged between the screw rod and the mounting hole, and the liquid leakage in the process of water body circulation can be avoided.

Drawings

FIG. 1 is a schematic cross-sectional front view of the present invention;

FIG. 2 is a side cross-sectional structural schematic view of the present invention;

FIG. 3 is a schematic top cross-sectional view of the present invention;

FIG. 4 is a schematic top view of the present invention;

fig. 5 is an enlarged schematic view of a portion a in fig. 1 according to the present invention.

In the figure: 1. a valve body; 101. mounting holes; 2. mounting grooves; 3. lengthening a rod; 301. a through groove; 4. an opening and closing mechanism; 401. a fixed block; 402. a placement groove; 403. fixing the rod; 404. a turbine; 405. a scroll bar; 406. rotating the disc; 5. a valve stem; 501. a connecting rod; 502. rotating the block; 6. a valve flap; 601. a seal ring; 602. a thread block; 603. connecting blocks; 7. an anti-drop mechanism; 701. a screw; 702. a threaded hole; 703. a threaded rod; 704. a water stop ring; 8. a gasket; 9. and (7) a rubber pad.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, an embodiment of the present invention is shown: an aluminum butterfly valve with a double eccentric structure comprises a valve body 1; a valve clack 6 is arranged in the valve body 1, an anti-falling mechanism 7 is arranged below the rear side of the valve clack 6, and an opening and closing mechanism 4 is connected above the valve body 1 through an extension rod 3;

the opening and closing mechanism 4 comprises a fixed block 401, a placing groove 402, a fixed rod 403, a worm wheel 404, a worm rod 405 and a rotating disc 406, wherein the placing groove 402 is formed in the fixed block 401, the worm rod 405 is installed in the placing groove 402 through a connecting sleeve, one end of the worm rod 405 extends to the outer side of the fixed block 401 and is fixedly connected with the rotating disc 406, and one side of the worm wheel 404 is meshed with the worm wheel 404 on the surface of the fixed rod 403;

the anti-falling mechanism 7 comprises a screw 701, a threaded hole 702, a threaded rod 703 and a water stop ring 704, the bottom of the valve body 1 is provided with a mounting hole 101, the screw 701 is mounted inside the mounting hole 101, the inner top of the screw 701 is provided with the threaded hole 702, the inside of the threaded hole 702 is fixedly connected with the threaded rod 703 through a bolt, and the outer side of the threaded rod 703 is provided with the water stop ring 704;

specifically, as shown in fig. 1, 2, 3, 4 and 5, when in use, a seal ring 601 is mounted on the side of the valve flap 6, the valve flap 6 is mounted inside the valve body 1 from one end of the valve body 1, the valve flap 6 is placed at a position corresponding to the mounting hole 101, the valve rod 5 is inserted into the inner cavity of the fixing rod 403 from above the fixing rod 403, one end of the connecting rod 501 is inserted into the inner cavity of the valve body 1 through the mounting groove 2 to be fixed with the thread block 602 in a threaded manner, the connecting rod 501 and the thread block 602 at the bottom of the valve rod 5 are fixed in a threaded manner by engaging a tool with the rotating block 502, the screw 701 is inserted into the mounting hole 101, the screw 701 is rotated to make the threaded hole 702 inside the screw 701 correspond to the threaded rod 703 below the connecting block 603, the screw 701 is rotated to fix the screw 701 and the threaded rod 703, and the valve flap 6 is fixed into the inner cavity of the valve body 1, the top fixed connection of the connecting block 603 and the threaded rod 703 is matched with the valve rod 5 through the connecting rod 501 and the internal threaded connection of the threaded block 602, so that the stability of the valve flap 6 in the inner cavity of the valve body 1 can be ensured, the separation of the valve flap 6 from the inner cavity of the valve body 1 in the process of water pressure impact is avoided, and the normal use of the device is ensured, meanwhile, the sealing gasket 8 is arranged at the outer side of the joint of the valve body 1 and the extension rod 3, and is fixedly connected with the inner wall of the valve body 1 through bolts, and the arrangement of the sealing gasket 8 can ensure the sealing performance of the joint of the extension rod 3 and the valve body 1, so that the sealing performance of the inner cavity of the valve body 1 can be ensured, after the valve flap 6 is installed and installed, the two ends of the valve body 1 are connected with an external pipeline in a welding mode, the connection is completed for use, in the using process of the device, if the valve needs to be opened, by rotating the rotating disc 406, the rotating disc 406 drives the scroll 405 to rotate, in the rotating process of the scroll 405, the fixing rod 403 on one side of the scroll 405 is driven to rotate, because the top of the turbine 404 is clamped with the top of the valve rod 5, the sealing ring 601 at the bottom of the valve rod 5 is driven to rotate 90 degrees, the cavities on the left side and the right side of the valve body 1 are communicated, and liquid in the inner cavities on the left side and the right side of the valve body 1 is circulated, when the valve needs to be closed, similarly, the rotating disc 406 is reversely rotated, the rotating disc 406 drives the scroll 405 to rotate, in the rotating process of the scroll 405, the fixing rod 403 on one side of the scroll 405 is driven to rotate, because the top of the turbine 404 is clamped with the top of the valve rod 5, the sealing ring 601 at the bottom of the valve rod 5 is driven to reversely rotate 90 degrees, so that the two sides of the valve flap 6 are tightly attached to the inner wall of the valve body 1 through the sealing ring 601, the inner cavities on the left side and the right side of the valve body 1 are separated, and the liquid circulation in the inner cavities on the left side and the right side inside of the valve body 1 is blocked, because the sealing washer 601 that the avris of valve clack 6 set up, can strengthen the leakproofness that valve clack 6 and valve body 1 inner wall are connected to guarantee the leakproofness of valve.

Furthermore, the top of the valve body 1 is provided with an installation groove 2, and the top of the valve body 1 is provided with an extension bar 3 at a position corresponding to the installation groove 2;

specifically, as shown in fig. 1 and 2, the installation groove 2 is provided to facilitate the insertion of the valve rod 5 into the valve body 1 and the fixed connection of the valve flap 6.

Further, a through groove 301 is formed in the extension bar 3, a fixing rod 403 is installed in the through groove 301, and a valve rod 5 is installed in the fixing rod 403;

specifically, as shown in fig. 1, 2 and 3, the extension bar 3 is provided to protect the fixing rod 403 penetrating the inside of the groove 301 and to connect the fixing block 401 to the outside of the valve body 1.

Further, one end of the bottom of the valve rod 5 is connected with a connecting rod 501, and the top surface of the valve rod 5 is provided with a rotating block 502;

specifically, as shown in fig. 1, 2 and 3, the valve rod 5 is inserted into the inner cavity of the fixing rod 403 from above the fixing rod 403, one end of the connecting rod 501 is inserted into the inner cavity of the valve body 1 through the mounting groove 2 to be screwed with the screw block 602, and the connecting rod 501 and the screw block 602 at the bottom of the valve rod 5 are screwed by engaging a tool with the rotating block 502, so that the valve flap 6 can be fixed in the inner cavity of the valve body 1.

Further, a sealing ring 601 is arranged on the side of the valve clack 6, a thread block 602 is arranged above the rear side of the valve clack 6, and a connecting block 603 is arranged below the rear side of the valve clack 6 at a position corresponding to the thread block 602;

specifically, as shown in fig. 1 and 2, a seal ring 601 is attached to the edge of the valve flap 6, the valve flap 6 is then mounted inside the valve body 1 from one end of the valve body 1, the valve flap 6 is placed at a position corresponding to the mounting hole 101, one end of the valve rod 5 mounted inside the mounting groove 2 is fixed to the internal thread of the thread block 602, the screw 701 is inserted into the mounting hole 101, the screw 701 is rotated so that the threaded hole 702 inside the screw 701 corresponds to the threaded rod 703 below the connecting block 603, the screw 701 is rotated so that the screw 701 and the threaded rod 703 are screwed, and the valve flap 6 is fixed to the inner cavity of the valve body 1, so that the device is used.

Further, the bottom of the connecting block 603 is fixedly connected with the top of the threaded rod 703, and the valve rod 5 is fixedly connected with the inner thread of the threaded block 602 through the connecting rod 501;

specifically, as shown in fig. 1, fig. 2 and fig. 5, the top fixed connection of the connection block 603 and the threaded rod 703 and the valve rod 5 are matched through the connection rod 501 and the internal thread connection of the threaded block 602, so that the stability of the valve flap 6 in the inner cavity of the valve body 1 can be ensured, and the influence on the normal use of the device caused by the separation of the valve flap 6 from the inner cavity of the valve body 1 in the water pressure impact process can be avoided.

Further, a rubber pad 9 is arranged in the mounting hole 101, and a sealing gasket 8 is arranged on the outer side of the connecting part of the mounting groove 2 and the extension bar 3 through a bolt;

specifically, as shown in fig. 1 and 2, the rubber pad 9 can avoid the leakage in the water circulation process inside the valve body 1, and the sealing performance of the joint of the extension bar 3 and the valve body 1 can be ensured by the sealing pad 8, so that the sealing performance of the inner cavity of the valve body 1 can be ensured.

Further, the side of the valve flap 6 is attached to the inner wall of the valve body 1, and the size of the fixing rod 403 is matched with that of the through groove 301;

specifically, as shown in fig. 1 and 2, the sealing ring 601 disposed at the edge of the valve flap 6 can enhance the sealing performance between the valve flap 6 and the inner wall of the valve body 1, so as to ensure the sealing performance of the valve, and after the fixing rod 403 is installed inside the through groove 301, the valve rod 5 is inserted into the through hole inside the fixing rod 403 and is fixedly connected with the thread block 602 through the thread, so as to fix the valve flap 6 in the inner cavity of the valve body 1.

The working principle is as follows: as shown in fig. 1, 2, 3, 4 and 5, when the valve flap 6 is inserted into the inner cavity of the valve body 1, the two ends of the valve body 1 are connected with the external pipeline by welding, and the valve is used after the connection is completed, when the valve needs to be opened during the use of the device, the rotating disc 406 is rotated to drive the scroll rod 405 to rotate, and during the rotation of the scroll rod 405, the fixing rod 403 on one side of the scroll rod 405 is driven to rotate, and because the top of the turbine 404 is engaged with the top of the valve rod 5, the sealing ring 601 on the bottom of the valve rod 5 is driven to rotate 90 degrees, so that the cavities on the left side and the right side of the valve body 1 are communicated, and the liquid in the inner cavities on the left side and the right side of the valve body 1 flows, when the valve needs to be closed, similarly, the rotating disc 406 is rotated reversely, the scroll rod 405 is driven to rotate by the rotating disc 406, and during the rotation of the scroll rod 405, the fixing rod 403 on one side of the scroll rod 405 is driven to rotate, because the top of turbine 404 and the top block of valve rod 5 to drive the sealing washer 601 antiport 90 degrees of valve rod 5 bottom, make the both sides of valve clack 6 pass through the inner wall of sealing washer 601 and valve body 1 and closely laminate, with the separation in the inner chamber of the valve body 1 left and right sides, block the liquid circulation in the inside left and right sides inner chamber of valve body 1, because the sealing washer 601 that the avris of valve clack 6 set up, can strengthen the leakproofness of valve clack 6 and 1 interior wall connection of valve body, thereby guarantee the leakproofness of valve.

The details of the present invention are well known to those skilled in the art.

Finally, it is to be noted that: although the present invention has been described in detail with reference to the embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. An aluminum butterfly valve with a double eccentric structure comprises a valve body (1); the method is characterized in that: a valve clack (6) is arranged inside the valve body (1), an anti-falling mechanism (7) is arranged below the rear side of the valve clack (6), and an opening and closing mechanism (4) is connected above the valve body (1) through an extension rod (3);

the opening and closing mechanism (4) comprises a fixed block (401), a placing groove (402), a fixed rod (403), a turbine (404), a worm rod (405) and a rotating disc (406), the placing groove (402) is formed in the fixed block (401), the worm rod (405) is installed in the placing groove (402) through a connecting sleeve, one end of the worm rod (405) extends to the outer side of the fixed block (401) and is fixedly connected with the rotating disc (406), and one side of the turbine (404) is meshed and connected with the turbine (404) on the surface of the fixed rod (403);

the anti-falling mechanism (7) comprises a screw rod (701), a threaded hole (702), a threaded rod (703) and a water stop ring (704), the bottom of the valve body (1) is provided with a mounting hole (101), the inside of the mounting hole (101) is provided with the screw rod (701), the inner top of the screw rod (701) is provided with the threaded hole (702), the inside of the threaded hole (702) is fixedly connected with the threaded rod (703) through a bolt, and the outer side of the threaded rod (703) is provided with the water stop ring (704).

2. The aluminum butterfly valve with a double eccentric structure of claim 1, wherein: the top of valve body (1) has been seted up mounting groove (2), and the top of valve body (1) corresponds position department with mounting groove (2) and installs extension bar (3).

3. The aluminum butterfly valve with a double eccentric structure of claim 2, wherein: the extension bar (3) is internally provided with a through groove (301), a fixing rod (403) is arranged in the through groove (301), and a valve rod (5) is arranged in the fixing rod (403).

4. An aluminum butterfly valve with a double eccentric configuration according to claim 3, wherein: one end of the bottom of the valve rod (5) is connected with a connecting rod (501), and the top surface of the valve rod (5) is provided with a rotating block (502).

5. The aluminum butterfly valve with a double eccentric structure of claim 1, wherein: the avris of valve clack (6) is provided with sealing washer (601), and the rear side top of valve clack (6) is provided with screw block (602), and the below of valve clack (6) rear side is provided with connecting block (603) with screw block (602) corresponding position department.

6. The aluminum butterfly valve with a double eccentric structure of claim 5, wherein: the bottom of the connecting block (603) is fixedly connected with the top of the threaded rod (703), and the valve rod (5) is fixedly connected with the internal thread of the threaded block (602) through the connecting rod (501).

7. The aluminum butterfly valve with a double eccentric structure of claim 1, wherein: the inside mounting of mounting hole (101) has rubber pad (9), and the sealed pad (8) are installed through the bolt in the outside of mounting groove (2) and extension bar (3) junction.

8. The aluminum butterfly valve with a double eccentric structure of claim 1, wherein: the edge side of the valve clack (6) is attached to the inner wall of the valve body (1), and the size of the fixing rod (403) is matched with that of the through groove (301).