CN213479222U

CN213479222U - Sealing butterfly valve with locking function

Info

Publication number: CN213479222U
Application number: CN202022269484.3U
Authority: CN
Inventors: 王宝印; 王玉柱
Original assignee: Tianjin Jiaxiang Tairui Valve Co ltd
Current assignee: Tianjin Jiaxiang Tairui Valve Co ltd
Priority date: 2020-10-13
Filing date: 2020-10-13
Publication date: 2021-06-18
Anticipated expiration: 2030-10-13

Abstract

The utility model discloses a sealed butterfly valve with locking function, including the valve body, the top intercommunication of valve body has the support, and the top intercommunication of support has the cavity that turns to, and the inside of valve body is provided with the valve plate, and the outside of valve plate is provided with the sealing washer, and the top fixedly connected with valve rod of valve plate, the top of valve rod run through the setting and just cup jointed straight-tooth bevel gear A in the inside that turns to the cavity. This sealed butterfly valve with locking function, through setting up the lockplate, rotate rotatory handle and adjust the valve plate position back, the lockplate locks the carousel, prevent that the valve plate from taking place the displacement under the fluid impact, influence the regulating effect of butterfly valve to the fluid flow, set up the annular cavity, when rotating rotatory handle, with inside the gas extrusion entering telescopic tube of air guide sleeve, with lockplate jack-up that makes progress, remove the locking, continue to rotate rotatory handle and adjust, the automatic carousel of locking of lockplate after having adjusted, need not manual locking, easy operation is convenient.

Description

Sealing butterfly valve with locking function

Technical Field

The utility model relates to a sealed butterfly valve technical field specifically is a sealed butterfly valve with locking function.

Background

A butterfly valve is also called a flap valve, is a regulating valve with simple structure, can be used for the on-off control of low-pressure pipeline media, and is a valve with a closing member which is a disc and rotates around a valve shaft to open and close. The pipe mainly plays a role in cutting off and throttling. The butterfly valve opening and closing piece is a disc-shaped butterfly plate and rotates around the axis of the butterfly plate in the valve body, so that the opening and closing or adjusting purpose is achieved. The existing butterfly valve can only be adjusted between opening and closing, has no position locking device, and is easy to shake to cause position deviation under the impact of fluid.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sealed butterfly valve with locking function 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 sealed butterfly valve with locking function, includes the valve body, the top intercommunication of valve body has the support, and the top intercommunication of support has the steering cavity, the inside of valve body is provided with the valve plate, and the outside of valve plate is provided with the sealing washer, the top fixedly connected with valve rod of valve plate, the top of valve rod is run through the setting and is just cup jointed straight-tooth bevel gear A in the inside that turns to the cavity, and straight-tooth bevel gear A's right side meshing has straight-tooth bevel gear B, straight-tooth bevel gear B's middle part fixedly connected with dwang, the right side of dwang is run through the right side and the fixedly connected with carousel that turn to the cavity, the middle part of dwang is provided with the bearing.

The novel rotary table is characterized in that an arc-shaped sliding groove is formed in the top and the bottom of the right side of the rotary table, a moving block is connected to the inside of the arc-shaped sliding groove in a sliding mode, a rotating handle is fixedly connected to the right side of the moving block through a connecting rod, air guide sleeves are arranged at two ends of the arc-shaped sliding groove, a sliding block is connected to the inside of the air guide sleeve in a sliding mode, an ejector rod is fixedly connected to one side of the sliding block, an expansion spring is fixedly connected to the other side of the sliding block, a communicating pipeline is arranged in the middle of the right side of the rotary table and is communicated with the air.

The steering cavity comprises a steering cavity body, and is characterized in that a supporting plate is fixedly connected to the top of the steering cavity body, an expansion sleeve is fixedly connected to the right side of the bottom of the supporting plate, the left bottom of the expansion sleeve is communicated with an annular cavity body through an air guide pipeline, a piston is slidably connected to the inside of the expansion sleeve, a compression spring is fixedly connected to the top of the piston, an expansion rod is fixedly connected to the bottom of the piston, and a locking plate is fixedly connected to the bottom.

Preferably, one side of the ejector rod penetrates through the annular sliding groove.

Preferably, a sealing gasket is arranged at the penetrating position of the bottom of the telescopic sleeve and the telescopic rod.

Preferably, the bottom of the locking plate is provided with a rubber pad, and the bottom of the rubber pad is in contact with the top of the rotary disc.

Preferably, the locking plate is arranged in an arc shape.

Preferably, the two sides of the valve body are symmetrically provided with mounting blocks.

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

1. this sealed butterfly valve with locking function, through setting up the lockplate, rotate rotatory handle governing valve plate position after, the lockplate locks the carousel, prevents that the valve plate from taking place the displacement under the fluid impact, influences the regulation effect that the butterfly valve flows.

2. This sealed butterfly valve with locking function, through setting up the annular cavity, when rotating rotatory handle, with inside gas extrusion entering telescopic sleeve of air guide sleeve, with lockplate jack-up that makes progress, remove the locking, continue to rotate rotatory handle and adjust, lockplate is automatic to the carousel locking after having adjusted, need not manual locking, easy operation is convenient.

Drawings

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

FIG. 2 is a schematic view of the turntable of the present invention;

FIG. 3 is a side view of the turntable of the present invention;

fig. 4 is a side view of the annular chamber of the present invention.

In the figure: the device comprises a valve body 1, a steering cavity 2, a valve rod 3, a rotating rod 4, a rotating disc 5, a bearing 6, an annular cavity 7, a moving block 8, a rotating handle 9, an air guide sleeve 10, a sliding block 11, a communicating pipeline 12, a rubber hose 13, a telescopic sleeve 14, a piston 15 and a locking plate 16.

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: a sealing butterfly valve with a locking function comprises a valve body 1, wherein mounting blocks are symmetrically arranged on two sides of the valve body 1, a support is communicated with the top of the valve body 1, a steering cavity 2 is communicated with the top of the support, a valve plate is arranged inside the valve body 1, a sealing ring is arranged on the outer side of the valve plate, a valve rod 3 is fixedly connected to the top of the valve plate, a straight-tooth bevel gear A is arranged inside the steering cavity 2 in a penetrating mode at the top of the valve rod 3 in a penetrating mode and sleeved with the straight-tooth bevel gear A, a straight-tooth bevel gear B is meshed with the right side of the straight-tooth bevel gear A, a rotating rod 4 is fixedly connected to the middle of the straight-tooth bevel gear B, a rotating disk 5 is arranged on the right side of the rotating rod 4 in a penetrating mode at the right side of the steering cavity 2, a bearing 6 is arranged in the middle of the rotating rod, the locking plate 16 is jacked upwards, the locking is released, the rotating handle 9 is continuously rotated to be adjusted, the rotating disc 5 is automatically locked by the locking plate 16 after the adjustment is finished, manual locking is not needed, and the operation is simple and convenient.

Arc spout has all been seted up to the top on carousel 5 right side and bottom, the inside sliding connection of arc spout has movable block 8, connecting rod fixedly connected with rotation handle 9 is passed through on the right side of movable block 8, the top fixedly connected with turning block on rotation handle 9 right side, the both ends of arc spout all are provided with air guide sleeve 10, air guide sleeve 10's inside sliding connection has slider 11, one side fixedly connected with ejector pin 12 of slider 11, the inside of setting at annular spout is run through to one side of ejector pin 12, slider 11's opposite side fixedly connected with expanding spring, the middle part on carousel 5 right side is provided with intercommunication pipeline 12, intercommunication pipeline 12 is linked together with air guide sleeve 10, intercommunication pipeline 12's left side intercommunication has flexible rubber hose 13, one side intercommunication of flexible rubber hose 13 is in the bottom of annular cavity 7, flexible rubber hose.

The top of the steering cavity 2 is fixedly connected with a supporting plate which is arranged in an L shape, the right side of the bottom of the supporting plate is fixedly connected with an expansion sleeve 14, a sealing gasket is arranged at the penetrating part of the bottom of the expansion sleeve 14 and an expansion link, the left bottom of the expansion sleeve 14 is communicated with the annular cavity 7 through an air guide pipeline, the interior of the expansion sleeve 14 is connected with a piston 15 in a sliding way, the top of the piston 15 is fixedly connected with a compression spring, the bottom of the piston 15 is fixedly connected with an expansion link, the bottom of the expansion link is fixedly connected with a locking plate 16, and the bottom of the rubber pad is contacted with the top of the rotary table 5, the locking plate 16 is arranged in an arc shape, the locking plate 16 is arranged, after the rotary handle 9 is rotated to adjust the position of the valve plate, the locking plate 16 locks the rotary disc 5 to prevent the valve plate from being displaced under the impact of fluid, and the adjustment effect of the butterfly valve on the fluid flow is influenced.

The working principle is as follows: the sealing butterfly valve with the locking function is installed through the installation block, the valve plate is adjusted by rotating the rotary handle 9, the connecting rod drives the moving block 8 to extrude the ejector rod, the air in the air guide sleeve 10 is extruded to enter the annular cavity 7 through the communicating pipe 12 and to enter the telescopic sleeve 14 through the air guide pipe, under gas pressure, the piston 15 rises, pulling the locking plate 16 upwards, thus unlocking, continuing to turn the rotating handle 9, the valve plate can be adjusted, the annular cavity 7 can keep the position inconvenient under the action of the bearing 6, the rubber hose 13 is wound on the outer side of the rotating rod 4, after the adjustment is finished, the rotating handle 9 is loosened, the locking plate 16 is lowered and reset under the elastic force of the expansion spring and the compression spring to lock the turntable 5, so that the valve plate is prevented from shaking under the impact of fluid.

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 sealed butterfly valve with locking function, includes valve body (1), its characterized in that: the top of the valve body (1) is communicated with a support, the top of the support is communicated with a steering cavity (2), a valve plate is arranged inside the valve body (1), a sealing ring is arranged outside the valve plate, a valve rod (3) is fixedly connected to the top of the valve plate, the top of the valve rod (3) penetrates through the inside of the steering cavity (2) and is sleeved with a straight-tooth bevel gear A, the right side of the straight-tooth bevel gear A is meshed with a straight-tooth bevel gear B, the middle of the straight-tooth bevel gear B is fixedly connected with a rotating rod (4), the right side of the rotating rod (4) penetrates through the right side of the steering cavity (2) and is fixedly connected with a rotating disc (5), a bearing (6) is arranged in the middle of the rotating rod (4), and an annular cavity (7);

the top and the bottom of the right side of the rotary table (5) are both provided with arc-shaped sliding grooves, the inner parts of the arc-shaped sliding grooves are connected with moving blocks (8) in a sliding manner, the right side of the moving blocks (8) is fixedly connected with a rotating handle (9) through a connecting rod, both ends of the arc-shaped sliding grooves are respectively provided with an air guide sleeve (10), the inner parts of the air guide sleeves (10) are connected with a sliding block (11) in a sliding manner, one side of the sliding block (11) is fixedly connected with a push rod, the other side of the sliding block (11) is fixedly connected with a telescopic spring, the middle part of the right side of the rotary table (5) is provided with a communicating pipeline (12), the communicating pipeline (12) is communicated with the air guide sleeve (10), the left side of the communicating pipeline;

turn to the top fixedly connected with backup pad of cavity (2), the right side fixedly connected with telescopic sleeve (14) of backup pad bottom, the left bottom of telescopic sleeve (14) is linked together through air guide pipeline and annular cavity (7), the inside sliding connection of telescopic sleeve (14) has piston (15), the top fixedly connected with compression spring of piston (15), the bottom fixedly connected with telescopic link of piston (15), bottom fixedly connected with lockplate (16) of telescopic link.

2. The sealing butterfly valve with locking function according to claim 1, characterized in that: one side of the ejector rod penetrates through the annular sliding groove.

3. The sealing butterfly valve with locking function according to claim 1, characterized in that: and a sealing gasket is arranged at the penetrating position of the bottom of the telescopic sleeve (14) and the telescopic rod.

4. The sealing butterfly valve with locking function according to claim 1, characterized in that: the bottom of the locking plate (16) is provided with a rubber pad, and the bottom of the rubber pad is contacted with the top of the rotary disc (5).

5. The sealing butterfly valve with locking function according to claim 1, characterized in that: the locking plate (16) is arranged in an arc shape.

6. The sealing butterfly valve with locking function according to claim 1, characterized in that: the two sides of the valve body (1) are symmetrically provided with mounting blocks.