CN216975807U

CN216975807U - Butterfly valve locking mechanism

Info

Publication number: CN216975807U
Application number: CN202122938056.XU
Authority: CN
Inventors: 杨姚耀
Original assignee: Qidong Alfa Valve Co ltd
Current assignee: Qidong Alfa Valve Co ltd
Priority date: 2021-11-27
Filing date: 2021-11-27
Publication date: 2022-07-15
Anticipated expiration: 2031-11-27

Abstract

The utility model discloses a butterfly valve locking mechanism, which comprises a transmission case arranged at the upper end of a valve body, wherein one side of the transmission case is provided with an adjusting shaft, the outer end of the adjusting shaft is fixedly connected with a turntable, the surface of the turntable is provided with a plurality of locking holes along an annular array, one end of the adjusting shaft is provided with a parallel locking rod, the cross section size of the locking rod is matched with the cross section diameter of the locking holes, the surface of the transmission case is provided with a first through groove, one end of the locking rod extends into the first through groove in a sliding manner, a first spring is fixedly connected between one end side of the locking rod positioned in the first through groove and the end side of the first through groove, the surface of the locking rod is fixedly sleeved with a fixing ring, one side of the lower end of the fixing ring is fixedly connected with a drive plate, the other end of the drive plate is provided with a fixed plate fixedly connected with the surface of the transmission case, and the drive plate is connected with the inside of the fixing plate in a sliding manner; this locking structure realizes the locking to the carousel, prevents that non-staff's misadjustment from leading to the follow-up emergence that produces a series of harmful results, is convenient for simultaneously to its unblock.

Description

Butterfly valve locking mechanism

Technical Field

The utility model relates to the field of valve parts, in particular to a butterfly valve locking mechanism.

Background

A butterfly valve, also called a flap valve, is a regulating valve with simple structure, and can be used for on-off control of low-pressure pipeline media, namely a valve with a closing part (valve clack or butterfly plate) as a disc and rotating around a valve shaft to achieve opening and closing.

In the prior art, a butterfly valve is in a free state after the flow is adjusted through a turntable, and misadjustment of non-working personnel is caused, so that a series of adverse results are generated subsequently.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model provides a butterfly valve locking mechanism to solve the problems in the background art.

In order to solve the technical problems, the utility model provides the following technical scheme: the butterfly valve locking mechanism comprises a transmission case arranged at the upper end of the valve body and connected with the valve rod, an adjusting shaft connected with the transmission case is arranged at one side of the transmission case, the outer end of the adjusting shaft is fixedly connected with a turntable, the surface of the turntable is provided with a plurality of locking holes along an annular array, one end of the adjusting shaft is provided with a locking rod which is parallel to the adjusting shaft, the cross section size of the locking rod is matched with the diameter of the cross section of the locking hole, the surface of the transmission case is provided with a first through groove, one end of the locking rod extends to the inside of the first through groove in a sliding manner, and a first spring is fixedly connected between one end side of the locking rod positioned in the first through groove and the end side of the first through groove, the surface of the locking rod is fixedly sleeved with a fixing ring, one side of the lower end of the fixing ring is fixedly connected with a driving plate, the other end of the driving plate is provided with a fixing plate fixedly connected with the surface of the transmission case, and the driving plate is connected with the inside of the fixing plate in a sliding mode.

As a preferable technical solution of the present invention, a second through groove is disposed at one end of the fixing plate close to the driving plate, one end of the driving plate slidably extends into the second through groove, and a second spring is fixedly connected between one end side of the driving plate inside the second through groove and an end side of the second through groove.

As a preferable technical solution of the present invention, the driving plate is fixedly connected with a driving handle at an outer side of a lower end of the fixing ring.

As a preferable technical scheme of the utility model, a limiting rod penetrates through the surface of one end, far away from the drive plate, of the fixing plate, and a positioning hole matched with the limiting rod is formed in one end, close to the transmission case, of the bottom side of the locking rod.

As a preferred technical scheme of the present invention, a cavity is disposed inside the fixing plate, the limiting rod slidably penetrates through the cavity, a third spring is sleeved on the surface of the limiting rod located inside the cavity, the lower end of the third spring is fixedly connected to the bottom side of the cavity, and the upper end of the third spring is fixedly connected to the surface of the limiting rod.

As a preferred technical scheme of the utility model, the lower end of the limiting rod is fixedly connected with a pull ring.

Compared with the prior art, the utility model can achieve the following beneficial effects:

1. the locking rod is matched with the fixing ring, the driving plate, the fixing plate and the second spring, so that the rotary disc is quickly unlocked, the regulation rate of the flow of the butterfly valve is improved, and the butterfly valve is simple in structure and convenient to operate;

2. through the use of the limiting rod, the third spring and the positioning hole, the locking rod is positioned when unlocked, one hand is not needed to push the fixing ring to be adjusted by one hand, and the flow adjusting rate of the butterfly valve is improved.

Drawings

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

FIG. 2 is a schematic view of a connecting structure of a locking lever and a transmission case according to the present invention;

FIG. 3 is a top view of the detent lever of the present invention;

FIG. 4 is a cross-sectional view of a fixation plate of the present invention;

wherein: 1. a valve body; 2. a transmission case; 3. an adjustment shaft; 4. a turntable; 5. a locking hole; 6. a lock lever; 7. a fixing plate; 8. a first through groove; 9. a first spring; 10. positioning holes; 11. a drive plate; 12. a fixing ring; 13. a driving handle; 14. a second through groove; 15. a second spring; 16. a cavity; 17. a limiting rod; 18. a pull ring; 19. and a third spring.

Detailed Description

The present invention will be further described with reference to specific embodiments for the purpose of facilitating an understanding of technical means, characteristics of creation, objectives and functions realized by the present invention, but the following embodiments are only preferred embodiments of the present invention, and are not intended to be exhaustive. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Example (b):

as shown in fig. 1, 2 and 4, the present invention provides a butterfly valve locking mechanism, which comprises a valve body 1, a valve rod, a transmission case 2, a valve rod sleeve, a valve plate, a regulating shaft 3, a rotating disc 4, a plurality of locking holes 5, a locking rod 6, a first spring 9, a fixing ring 12, a second spring, a fixing ring 12, a first spring, a second spring, a third spring, a fourth spring, a fifth spring, a sixth spring, a fifth spring, a sixth spring, a fifth spring, a sixth spring, a fifth spring, a sixth spring, a fifth spring, a sixth spring, a fifth spring, a sixth spring, a fifth spring, a sixth spring, a fifth spring, a sixth spring, a fifth spring, a sixth spring, a fifth spring, a driving plate 11 is fixedly connected to one side of the lower end of the fixing ring 12, a fixing plate 7 fixedly connected with the surface of the transmission case 2 is arranged at the other end of the driving plate 11, a second through groove 14 is arranged at one end, close to the driving plate 11, of the fixing plate 7, one end of the driving plate 11 extends into the second through groove 14 in a sliding mode, and a second spring 15 is fixedly connected between one end side located in the second through groove 14 and the end side of the second through groove 14;

during the flow regulation of the butterfly valve, firstly, a fixing ring 12 is pushed towards one end close to a transmission box 2, the lower end of the fixing ring 12 drives a driving plate 11 to move towards a second through groove 14 in a fixing plate 7, a second spring 15 is pressurized at the same time, the upper end of the fixing ring 12 drives a locking rod 6 to synchronously move towards one end of the transmission box 2, the locking rod 6 slides along the inside of a first through groove 8 to extrude a first spring 9, the other end of the locking rod 6 is separated from the inside of a locking hole 5 to release the locking of a rotary disc 4, then the rotary disc 4 is rotated to regulate the flow of the butterfly valve, when the regulation is finished, the thrust on the fixing ring 12 is released, the locking rod 6 is matched with the first through groove 8, the driving plate 11 is matched with the second spring 15 to drive the locking rod 6, the driving plate 11 and the fixing ring 12 to reset, the end part of the locking rod is inserted into the locking hole 5 to lock the rotary disc 4 again, and the rotary disc 4 is locked, the misadjustment of non-working personnel is prevented, and a series of adverse consequences are caused subsequently.

As shown in fig. 4, in the embodiment, a driving handle 13 is fixed to the outside of the driving plate 11 at the lower end of the fixing ring 12; through the setting of drive handle 13, be convenient for to the promotion of solid fixed ring 12, improve the unblock speed of carousel 4.

As shown in fig. 3 and 4, in the embodiment, a limiting rod 17 penetrates through a surface of one end of the fixing plate 7, which is far away from the driving plate 11, a positioning hole 10 matched with the limiting rod 17 is formed in one end, which is close to the transmission case 2, of the bottom side of the locking rod 6, a cavity 16 is formed in the fixing plate 7, the limiting rod 17 penetrates through the cavity 16 in a sliding manner, a third spring 19 is sleeved on the surface of the limiting rod 17, which is located in the cavity 16, the lower end of the third spring 19 is fixedly connected with the bottom side of the cavity 16, and the upper end of the third spring is fixedly connected with the surface of the limiting rod 17;

when promoting solid fixed ring 12, at first down pulling gag lever post 17 extrudees third spring 19 simultaneously, when locking pole 6 breaks away from with locking hole 5 is inside, locating hole 10 is located gag lever post 17's upper end, loosen the pulling force to gag lever post 17, gag lever post 17 cooperation third spring 19's use up removes, make gag lever post 17 upper end extend the inside that removes to locating hole 10, it is spacing to locking pole 6, then can loosen the thrust to solid fixed ring 12, rotate carousel 4 again and adjust, the location to locking pole 6 has been realized, do not need a hand to promote solid fixed ring 12 hand regulation, improve the regulation rate of butterfly valve flow.

As shown in fig. 4, the embodiment discloses that a pull ring 18 is fixedly connected to the lower end of the limiting rod 17; through the setting of pull ring 18, be convenient for pull gag lever post 17 down, improve the positioning rate of locking pole 6.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Butterfly valve locking mechanism is connected with transmission case (2) including setting up in valve body (1) upper end through the valve rod, one side of transmission case (2) is provided with regulating spindle (3) rather than being connected, the outer end rigid coupling of regulating spindle (3) has carousel (4), its characterized in that: a plurality of locking holes (5) are arranged on the surface of the rotary disc (4) along an annular array, a locking rod (6) parallel to the adjusting shaft (3) is arranged at one end of the adjusting shaft, the cross section size of the locking rod (6) is matched with the cross section diameter of the locking hole (5), a first through groove (8) is formed in the surface of the transmission case (2), one end of the locking rod (6) extends into the first through groove (8) in a sliding mode, and a first spring (9) is fixedly connected between one end side of the locking rod (6) positioned in the first through groove (8) and the end side of the first through groove (8), the surface of the locking rod (6) is fixedly sleeved with a fixing ring (12), one side of the lower end of the fixing ring (12) is fixedly connected with a driving plate (11), the other end of the driving plate (11) is provided with a fixing plate (7) fixedly connected with the surface of the transmission case (2), and the driving plate (11) is connected with the inside of the fixing plate (7) in a sliding mode.

2. The butterfly valve locking mechanism of claim 1, wherein: one end, close to the driving plate (11), of the fixing plate (7) is provided with a second through groove (14), one end of the driving plate (11) extends into the second through groove (14) in a sliding mode, and a second spring (15) is fixedly connected between one end side of the second through groove (14) and the end side of the second through groove (14).

3. The butterfly valve locking mechanism of claim 1, wherein: and a driving handle (13) is fixedly connected to the outer side of the driving plate (11) at the lower end of the fixing ring (12).

4. The butterfly valve locking mechanism of claim 1, wherein: a limiting rod (17) penetrates through the surface of one end, far away from the driving plate (11), of the fixing plate (7), and a positioning hole (10) matched with the limiting rod (17) is formed in one end, close to the transmission case (2), of the bottom side of the locking rod (6).

5. The butterfly valve locking mechanism of claim 4, wherein: the fixed plate (7) is internally provided with a cavity (16), the limiting rod (17) penetrates through the cavity (16) in a sliding manner, a third spring (19) is sleeved on the surface of the limiting rod (17) inside the cavity (16), the lower end of the third spring (19) is fixedly connected with the bottom side of the cavity (16), and the upper end of the third spring is fixedly connected with the surface of the limiting rod (17).

6. The butterfly valve locking mechanism of claim 5, wherein: the lower end of the limiting rod (17) is fixedly connected with a pull ring (18).