CN212055883U

CN212055883U - Anti-leakage butterfly valve

Info

Publication number: CN212055883U
Application number: CN202020434411.2U
Authority: CN
Inventors: 朱吉胜; 周彬; 杨智勇
Original assignee: Alken Valve Co ltd
Current assignee: Alken Valve Co ltd
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2020-12-01
Anticipated expiration: 2030-03-30

Abstract

The utility model provides a leakage-proof butterfly valve, which comprises a valve body, a flange, a valve rod, a butterfly plate and a handle, wherein the flange is respectively connected with two ends of the valve body, the valve rod is rotatably arranged on the valve body in a penetrating way, the butterfly plate is fixedly sleeved on the valve rod and is rotatably arranged in a medium channel in the valve body around the axis of the valve rod, the handle is connected with the top end of the valve rod, two end faces of the butterfly plate are respectively connected with a sealing ring, the sealing rings are matched and arranged in a cavity of the valve body, a clamping mechanism is arranged between the handle and the valve body, the utility model has simple structure and convenient operation, realizes multiple sealing of the butterfly valve by utilizing a plurality of groups of sealing rings, ensures that the butterfly valve has good sealing performance, prevents the leakage of the medium when the butterfly valve is closed, simultaneously realizes the locking of the butterfly valve and the adjustment of the opening angle of the butterfly, therefore, the utility model has strong practicability.

Description

Anti-leakage butterfly valve

Technical Field

The utility model relates to the technical field of valves, especially, relate to a prevent leaking butterfly valve.

Background

A butterfly valve, also called flap valve, is a switch control valve used for low pressure pipeline medium, because its operating torque is small, easy to install, light, easy to combine with various drive units, so suitable for the control of various kinds of fluid such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media, etc., and then have realized the cut-off and throttling of the fluid in the pipeline, have good durability and reliability, the opening and closing member of the butterfly valve is a disc butterfly plate, rotate around its own axis in the valve body, thus achieve the purpose of opening and closing or regulating, at present, there are many innovative techniques about butterfly valve, for example, the application date is 2018.09.18, publication No. CN208967060U, in the Chinese patent named "a prevent leakage butterfly valve", also disclose an improved prevent leakage, however, the aforesaid prevent leakage butterfly valve needs to make the fastening bolt in the state of unscrewing while opening or closing, the fastening bolt may incline when rotating the rotation axis of the butterfly valve, which affects the smoothness of the butterfly valve in the opening and closing process, thereby reducing the practicability.

SUMMERY OF THE UTILITY MODEL

The to-be-solved problem of the utility model is to solve the problem that exists among the prior art, provide a simple and practical, according to user's demand, install the sealing washer additional on the butterfly plate, guarantee that its leakproofness is good, prevent to take place to leak in its use, utilize the chucking mechanism between handle and valve body to adjust the opening angle of butterfly plate simultaneously, the realization is to the control of the flow size that the passageway passes through in the valve body, and utilize locking mechanism to lock the butterfly plate under the closed condition, have the leak-proof butterfly valve of higher practicality.

In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides a prevent leaking butterfly valve, includes valve body, flange, valve rod, butterfly plate and handle, the flange is connected respectively in the both ends of valve body, the valve rod rotates and wears to locate on the valve body, the butterfly plate is fixed to be overlapped on locating the valve rod, and this butterfly plate rotates around the valve rod axis and sets up in the medium channel in the valve body, the handle is connected in the top of valve rod, a sealing washer is respectively connected to two terminal surfaces of butterfly plate, the sealing washer cooperatees and sets up in the intracavity of valve body, set up a chucking mechanism between handle and the valve body.

Further, chucking mechanism sets up to including push rod, latch segment, first spring and first chuck, inside the handle was worn to locate in the push rod slides, the latch segment sets up in the holding intracavity of seting up on the handle roof, and this latch segment is connected with holding intracavity diapire through first spring, first chuck fixed connection is on the valve body, and the tooth's socket on this first chuck cooperatees with the structure of push rod output.

Furthermore, the input end of the push rod is connected with a push block, the top wall of the push block is provided with anti-skid lines, and the push block is matched with and arranged on the locking block in a sliding mode.

Furthermore, two groups of inclined grooves are formed in the top end of the locking block.

Further, chucking mechanism sets up to include first depression bar, second spring and second chuck, first depression bar articulates on the handle, the top and the end of second spring are connected respectively on the input portion and the handle of first depression bar, second chuck fixed connection is on the valve body, and the tooth's socket on this second chuck cooperatees with the structure of first depression bar output.

Further, the clamping mechanism comprises a second pressing rod, a third spring and a third chuck, the second pressing rod is hinged to the handle, the starting end and the tail end of the third spring are connected to the output portion of the second pressing rod and the handle respectively, the third chuck is fixedly connected to the valve body, and a tooth groove in the third chuck is matched with the structure of the output end of the second pressing rod.

Furthermore, two groups of valve rods, butterfly plates and handles are respectively and adjacently arranged on the valve body.

Further, set up a delay chamber and a piston in the valve body, the delay chamber sets up between two sets of butterfly plates, the piston slides and wears to locate to link up and sets up in the through-hole on the chamber lateral wall that delays.

Furthermore, a locking mechanism is arranged on the side wall of the butterfly plate.

Further, locking mechanism includes fourth spring, locking ball and draw-in groove, the fourth spring sets up in the holding that the butterfly plate lateral wall was seted up downtheholely, and the end and the top of this fourth spring connect respectively in holding hole diapire and locking ball, the draw-in groove is seted up on the valve body inner wall, and the structure of this draw-in groove cooperatees with the structure of locking ball.

Further, a square bar is fixedly connected to the top end of the valve rod, and the square bar is matched with and penetrates through the handle.

The utility model has the advantages and positive effects that: the utility model discloses simple structure, easy operation, through connect the sealing washer respectively on butterfly plate both ends face, guarantee the leakproofness of butterfly valve under the closed condition, and then prevent the butterfly valve leakage phenomenon, utilize chucking mechanism to adjust the angle that the butterfly plate was opened simultaneously, the size of flow is adjusted in the valve body medium passageway to the flow, and ensure that the butterfly plate under the current circulation state can be fixed by chucking mechanism, locking mechanism on the butterfly plate can be further locked it, make the butterfly plate be in the state of totally enclosed, and then the practicality of butterfly valve has been improved.

Drawings

Fig. 1 is a schematic view of the external structure of the present invention.

Fig. 2 is a schematic sectional view of the model of the present invention.

Fig. 3 is a side view of the present invention.

Fig. 4 is a schematic view of a chucking mechanism of embodiment 1.

Fig. 5 is a schematic view of a chucking mechanism of embodiment 2.

Fig. 6 is a schematic view of a chucking mechanism of embodiment 3.

Fig. 7 is a schematic view of a locking mechanism.

In the figure: the valve comprises a valve body 1, a flange 2, a valve rod 3, a butterfly plate 4, a handle 5, a sealing ring 6, a chute 7, a clamping mechanism 8, a push rod 811, a locking block 812, a first spring 813, a first chuck 814, a push block 815, a first pressure rod 821, a second spring 822, a second chuck 823, a second pressure rod 831, a third spring 832, a third chuck 833, a detention cavity 9, a piston 10, a locking mechanism 11, a fourth spring 111, a locking ball 112, a clamping groove 113 and a square rod 12.

Detailed Description

For a better understanding of the present invention, the following further description is given in conjunction with the following embodiments and accompanying drawings.

Example 1

As shown in fig. 1-4 and 7, a leakage-proof butterfly valve comprises a valve body 1, a flange 2, a valve rod 3, a butterfly plate 4 and a handle 5, wherein the flange 2 is respectively connected to two ends of the valve body 1, the valve rod 3 is rotatably arranged on the valve body 1 in a penetrating manner, the butterfly plate 4 is fixedly sleeved on the valve rod 3, the butterfly plate 4 is rotatably arranged in a medium channel in the valve body 1 around the axis of the valve rod 3, the handle 5 is connected to the top end of the valve rod 3, two end faces of the butterfly plate 4 are respectively connected with a sealing ring 6, the sealing rings 6 are arranged in a cavity of the valve body 1 in a matching manner, a clamping mechanism 8 is arranged between the handle 5 and the valve body 1, the sealing effect of the butterfly valve is effectively ensured by respectively connecting the sealing rings 6 to the two end faces of the butterfly plate 4, the size of medium flow in the medium channel of the valve body 1 is adjusted by the clamping mechanism 8, thereby improving the practicability of the butterfly valve.

Further, the clamping mechanism 8 is configured to include a push rod 811, a locking block 812, a first spring 813 and a first chuck 814, the push rod 811 is slidably disposed inside the handle 5, the locking block 812 is disposed in a receiving cavity formed on the top wall of the handle 5, the locking block 812 is connected with the bottom wall of the containing cavity through a first spring 813, the first chuck 814 is fixedly connected to the valve body 1, and a tooth socket on the first chuck 814 is matched with the structure of the output end of the push rod 811, by pushing the push rod 811 to move forward, the output end of the push rod 811 is in fit with the tooth grooves of the first chuck 814, meanwhile, the inclined groove 7 is arranged on the locking block 812, the push rod 811 compresses the first spring 813 connected with the bottom of the locking block 812 when sliding on the inclined groove 7, the push rod 811 can be switched between the engaged and disengaged states, and the movement of the push rod 811 can be prevented when the push rod is in the engaged state.

Furthermore, the input end of the push rod 811 is connected with a push block 815, the top wall of the push block 815 is provided with anti-slip threads, the push block 815 is slidably disposed on the locking block 812 in a matching manner, and the anti-slip threads are provided on the push block 815 to increase the friction force when pushing the push rod 811, so that the push rod 811 moves more smoothly.

Furthermore, two groups of inclined grooves 7 are formed at the top end of the locking block 812, and the pushing block 815 can slide back and forth in the two inclined grooves 7 through the matched sliding connection of the inclined grooves 7 and the pushing block 815, so that the switching between the opening state and the closing state of the clamping mechanism 8 is realized.

Furthermore, two groups of valve rods 3, butterfly plates 4 and handles 5 are respectively and adjacently arranged on the valve body 1, so that the sealing performance of the butterfly valve is further enhanced.

Further, set up a delay chamber 9 and a piston 10 in the valve body 1, delay chamber 9 sets up between two sets of butterfly plates 4, and piston 10 slides and wears to locate to link up and sets up in the through-hole on delay chamber 9 lateral wall, through set up delay chamber 9 in valve body 1, can delay the medium that fails in time through the butterfly valve after two sets of butterfly plates 4 close, can clear up the medium that delays in the chamber 9 through extracting piston 10, prevents to delay for a long time and corrodes or pollute the butterfly valve.

Further, a locking mechanism 11 is provided on the side wall of the butterfly plate 4, and the locking mechanism 11 functions to lock the butterfly plate 4 when it is completely closed, and to ensure that the butterfly plate 4 is now perpendicular to the medium passage, so that the seal ring 6 on the butterfly plate 4 can completely close the medium passage.

Further, the locking mechanism 11 includes a fourth spring 111, a locking ball 112 and a locking groove 113, the fourth spring 111 is disposed in a containing hole formed in the side wall of the butterfly plate 4, the end and the beginning of the fourth spring 111 are respectively connected to the bottom wall of the containing hole and the locking ball 112, the locking groove 113 is disposed on the inner wall of the valve body 1, and the structure of the locking groove 113 is matched with the structure of the locking ball 112, in the process of opening the butterfly plate 4, the fourth spring 111 and the locking ball 112 both rotate with the butterfly plate 4 and are away from the locking groove 113, and in the process of locking, the fourth spring 111 and the locking ball 112 rotate with the butterfly plate 4 until the locking ball 112 is pressed into and clamped in the locking groove 113 by the fourth spring 111.

Further, 3 top fixed connection square poles 12 of valve rod, square pole 12 cooperate and wear to locate on handle 5, utilize square pole 12 and handle 5 to cooperate to be connected, avoid handle 5 to take place the phenomenon of skidding with valve rod 3 when rotating.

Example 2

As shown in fig. 5, the difference from embodiment 1 is that, further, the clamping mechanism 8 is configured to include a first pressing rod 821, a second spring 822 and a second chuck 823, the first pressing rod 821 is hinged on the handle 5, the beginning end and the end of the second spring 822 are respectively connected to the input part of the first pressing rod 821 and the handle (5), the second chuck 823 is fixedly connected to the valve body 1, and a tooth groove on the second chuck 823 is matched with the structure of the output end of the first pressing rod 821, an operator holds the input part of the first pressing rod 821 and presses its grip to compress the second spring 822, so that the output end of the first pressing rod 821 moves downward and disengages from the tooth groove of the second chuck 823, so that the handle 5 drives the valve rod 3 and the butterfly plate 4 to rotate, after removing the force 822, the output end of the first pressing rod 821 returns to the original position under the action of the elastic force of the second spring, the handle 5 is re-clamped.

Example 3

As shown in fig. 6, the difference from the embodiment 1 and the embodiment 2 is that, further, the chucking mechanism 8 includes a second pressing rod 831, a third spring 832 and a third chuck 833, the second pressing rod 831 is hinged on the handle 5, the beginning and the end of the third spring 832 are respectively connected to the output portion of the second pressing rod 831 and the handle 5, the third chuck 833 is fixedly connected to the valve body 1, and the tooth grooves on the third chuck 833 are matched with the structure of the output end of the second pressure lever 831, when the input portion of the second lever 831 is pressed for gripping, the third spring 832 is extended, and the output end of the second compression bar 831 moves downwards to be separated from the tooth grooves of the second chuck 823, at this time, the handle 5 drives the valve rod 3 and the butterfly plate 4 to rotate, after the pressure is removed, under the action of the elastic force of the third spring 832, the output end of the second compression rod 831 returns to the original position, and the handle 5 is clamped again.

The utility model discloses an utilize sealing washer 6 on the 4 both ends faces of butterfly plate, the closure of effectual assurance butterfly valve, and then realize preventing leaking the function, utilize 8 opening angle of adjusting butterfly plate 4 of chucking mechanism simultaneously, adjust the size of flow in the medium channel of butterfly valve, and guarantee that this circulation state is down butterfly plate 4 can be by 8 chucking of chucking mechanism, when the butterfly valve is closed completely simultaneously, locking mechanism 11 on the butterfly plate 4 can further lock it, make the butterfly valve be in complete sealing state, the event has improved the practicality of butterfly valve, the device simple structure, and convenient for operation, and wide application, this prevent leaking the working process of butterfly valve as follows, use embodiment 1 as an example:

1. an operator inserts the butterfly valve into a pipeline, connects the flange 2 with a medium pipeline through bolts, and fully fastens the bolts;

2. the push block 815 at the top end of the push handle 5 moves backwards, so that the push block 815 drives the push rod 811 to move together, and in the moving process of the push block 815, the push block 815 slides on the locking block 812 in a matching manner, so that the push block 815 is switched from two inclined grooves 7 on the locking block 812, at this time, the output end of the push rod 811 is disengaged from the tooth groove, and at this time, the clamping mechanism 8 is opened;

3. the handle 5 is rotated, the handle 5 drives the valve rod 3 and the butterfly plate 4 to rotate together along the axis of the valve rod, and in the rotating process of the handle 5, the fourth spring 111 and the locking ball 112 both move away from the clamping groove 113 along with the rotation of the butterfly plate 4, so that the locking ball 112 slides out of the clamping groove 113, and the butterfly valve is further in an open state;

4. if the medium flow passing through the medium channel in the valve body 1 needs to be adjusted, the handle 5 of the butterfly valve is rotated to a certain position, the push block 815 is pushed to move forwards, the push rod 811 moves along with the push block 815, and when the input end of the push rod 811 is clamped into the tooth groove of the first chuck 814 again, the clamping mechanism 8 clamps the current state of the butterfly plate 4, so that the medium channel in the valve body 1 keeps the current flow state;

5. if the medium flow of the medium channel in the valve body 1 needs to be adjusted again, the operation step 4 is repeated, if the butterfly valve needs to be closed, the step 2 is repeated, the clamping mechanism 8 is opened, the handle 5 and the butterfly plate 4 are rotated to the initial position, the operation step 4 is repeated, the clamping mechanism 8 is restored to the initial position, after the operation is completed, the piston 10 is drawn out from the through hole of the valve body 1, the medium in the detention cavity 9 is removed through the guide pipe, the valve body 1 is prevented from being polluted or corroded due to long-time accumulation of the medium, and after the medium in the detention cavity 9 is removed, the piston 10 is plugged into the through hole again.

The embodiments of the present invention have been described in detail, but the present invention is only the preferred embodiments of the present invention, and the present invention is not to be considered as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.

Claims

1. The utility model provides a prevent leaking butterfly valve, includes valve body (1), flange (2), valve rod (3), butterfly plate (4) and handle (5), flange (2) are connected respectively in the both ends of valve body (1), valve rod (3) rotate and wear to locate on valve body (1), butterfly plate (4) are fixed to be overlapped and are located on valve rod (3), and this butterfly plate (4) rotate around valve rod (3) axis and set up in the medium passage in valve body (1), handle (5) are connected in the top of valve rod (3), its characterized in that: two end faces of the butterfly plate (4) are respectively connected with a sealing ring (6), the sealing rings (6) are matched and arranged in the cavity of the valve body (1), and a clamping mechanism (8) is arranged between the handle (5) and the valve body (1).

2. A leak-resistant butterfly valve as claimed in claim 1, wherein: chucking mechanism (8) set up to including push rod (811), latch segment (812), first spring (813) and first chuck (814), inside handle (5) were worn to locate in push rod (811) slip, latch segment (812) set up in seting up the holding intracavity on handle (5) roof, and this latch segment (812) are connected with holding intracavity diapire through first spring (813), first chuck (814) fixed connection is on valve body (1), and the tooth's socket on this first chuck (814) cooperatees with the structure of push rod (811) output.

3. A leak-resistant butterfly valve as claimed in claim 2, wherein: the input end of the push rod (811) is connected with a push block (815), the top wall of the push block (815) is provided with anti-skid grains, and the push block (815) is matched and slidably arranged on the locking block (812).

4. A leak-resistant butterfly valve as claimed in claim 3, wherein: two groups of inclined grooves (7) are formed in the top end of the locking block (812).

5. A leak-resistant butterfly valve as claimed in claim 1, wherein: the clamping mechanism (8) is arranged to comprise a first pressure rod (821), a second spring (822) and a second chuck (823), the first pressure rod (821) is hinged to the handle (5), the starting end and the tail end of the second spring (822) are connected to the input portion of the first pressure rod (821) and the handle (5) respectively, the second chuck (823) is fixedly connected to the valve body (1), and a tooth groove in the second chuck (823) is matched with the structure of the output end of the first pressure rod (821).

6. A leak-resistant butterfly valve as claimed in claim 1, wherein: chucking mechanism (8) include second depression bar (831), third spring (832) and third chuck (833), second depression bar (831) articulate on handle (5), the top and the end of third spring (832) are connected respectively on output portion and handle (5) of second depression bar (831), third chuck (833) fixed connection is on valve body (1), and the tooth's socket on this third chuck (833) cooperatees with the structure of second depression bar (831) output.

7. A leak-resistant butterfly valve as claimed in claim 1, wherein: two groups of valve rods (3), butterfly plates (4) and handles (5) are respectively and adjacently arranged on the valve body (1).

8. A leak-resistant butterfly valve as claimed in claim 1, wherein: set up a delay chamber (9) and a piston (10) in valve body (1), delay chamber (9) set up between two sets of butterfly plates (4), piston (10) slide to wear to locate to link up and set up in the through-hole on delay chamber (9) lateral wall.

9. A leak-resistant butterfly valve as claimed in claim 1, wherein: and a locking mechanism (11) is arranged on the side wall of the butterfly plate (4).

10. A leak-resistant butterfly valve as claimed in claim 9, wherein: locking mechanism (11) include fourth spring (111), locking ball (112) and draw-in groove (113), fourth spring (111) set up in the holding hole that butterfly plate (4) lateral wall was seted up, and the end and the top of this fourth spring (111) connect respectively in holding hole diapire and locking ball (112), draw-in groove (113) are seted up on valve body (1) inner wall, and the structure of this draw-in groove (113) cooperatees with the structure of locking ball (112).