CN210003836U

CN210003836U - butterfly valve with upper limit locking device

Info

Publication number: CN210003836U
Application number: CN201920877380.5U
Authority: CN
Inventors: 钱俊
Original assignee: JIANGSU AOKAI AUTOMATION EQUIPMENT TECHNOLOGY Co Ltd
Current assignee: JIANGSU AOKAI AUTOMATION EQUIPMENT TECHNOLOGY Co Ltd
Priority date: 2019-06-12
Filing date: 2019-06-12
Publication date: 2020-01-31
Anticipated expiration: 2029-06-12

Abstract

The utility model discloses a butterfly valve of spacing locking device is taken to kinds of bands in butterfly valve technical field, including valve body, valve plate and valve shaft, the fixed spacing locking device who cup joints with circular fixing base matched with of valve shaft outer wall, spacing locking device is including the fixed disk of fixed cup joint at the valve shaft outer wall, the utility model discloses a locking blind hole cooperation on the spacing locking device who sets up and the circular fixing base, when needing to pull down butterfly valve actuating mechanism and maintain or change, rotate the drawing disc, make the bayonet lock correspond the draw-in groove, loosen the drawing disc, reset spring drives the inserted bar and gets into the corresponding locking blind hole downwards, and the bayonet lock gets into the draw-in groove, fixes the valve shaft to fix the operating position of valve plate, realize the locking of butterfly valve plate operating position, make its directly keep the position of normal during operation and can not change, realize the mesh of maintaining or changing butterfly valve actuating mechanism.

Description

butterfly valve with upper limit locking device

Technical Field

The utility model relates to a butterfly valve technical field specifically is butterfly valves of spacing locking device on area.

Background

The butterfly valve is widely applied to various pipelines by , a valve plate of the butterfly valve is connected with a driving mechanism through a valve shaft, and the driving mechanism drives the valve shaft to rotate the valve plate to realize connection and disconnection of media in the pipeline.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an kinds take limit locking device's butterfly valve to solve the problem that proposes among the above-mentioned background art.

butterfly valve of limiting locking device in area, including valve body, valve plate and valve shaft, the valve plate sets up in the valve body, the valve shaft is connected with the valve plate top, and the valve shaft top extends to the valve body top, the fixed circular fixing base that has cup jointed in valve body outer wall top, the fixed limiting locking device who cup joints with circular fixing base matched with of valve shaft outer wall, limiting locking device is including fixed the fixed disk of cup jointing at the valve shaft outer wall, and the fixed disk is located circular fixing base top, the activity of fixed disk top right side is pegged graft and is had the inserted bar, the locking blind hole that matches with the inserted bar has evenly been seted up at circular fixing base top, the fixed circular insert that has cup jointed in inserted bar outer wall bottom, the inserted bar outer wall has cup jointed reset spring, and reset spring is located between insert and the fixed disk, reset spring bottom and insert top outer wall fixed connection, and reset spring top and fixed disk bottom outer wall fixed connection.

step by step, the inserted bar top is provided with through the bearing activity and draws the dish, draw the fixed bayonet lock that is provided with in dish bottom left side, and the fixed disk top is provided with group and the draw-in groove of bayonet lock matching.

, the valve body is flanged with an end cap at the bottom end of the valve shaft.

, a sealing ring pad for preventing the leakage of liquid from the rotary part under the valve shaft is arranged in the valve body, and a deep groove ball bearing is arranged between the sealing ring pad and the end cover.

, vertical anti-skidding teeth are uniformly arranged on the outer wall of the circumference of the fixed disc, and the anti-skidding teeth are rubber anti-skidding teeth.

, the number of the blind locking holes is ten groups, and ten groups of blind locking holes are distributed on the top of the circular fixed seat along an annular array.

Compared with the prior art, the beneficial effects of the utility model are that the utility model discloses a spacing locking device who sets up cooperates with the locking blind hole on the circular fixing base, when normal use, the bayonet lock does not get into the draw-in groove, reset spring is in compression state, thereby actuating mechanism drives the valve plate through the drive valve shaft and carries out normal work, the fixed disk rotates along with the valve shaft, when needing to pull down butterfly valve actuating mechanism and maintain or change, rotate the drawing disc, make the bayonet lock correspond the draw-in groove, loosen the drawing disc, reset spring drives the inserted bar and gets into corresponding locking blind hole downwards, the bayonet lock gets into the draw-in groove, fix the valve shaft, thereby fix the operating position of valve plate, realize the locking of butterfly valve plate operating position, make its directly keep the position of normal during operation and can not change, from the face realizes online purpose of maintaining or changing butterfly valve actuating mechanism, when need close the valve plate when maintaining, accessible pulling the drawing disc pulling the inserted bar upwards, drive the valve shaft through rotating the fixed disk and carry out the logical, the intrad.

Drawings

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

FIG. 2 is a top view of the structure of the position-limiting locking device of the present invention;

FIG. 3 is a front view of the insertion rod structure of the present invention;

fig. 4 is the structural schematic diagram of the locking blind hole of the present invention.

In the figure: 1. a valve body; 2. a valve plate; 3. a valve shaft; 4. a circular fixing seat; 41. locking the blind hole; 5. a limit locking device; 51. fixing the disc; 52. inserting a rod; 53. pulling the disc; 54. a bayonet lock; 55. a return spring; 56. an insert; 6. and (4) end covers.

Detailed Description

The technical solution 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 , but not all embodiments.

Please refer to fig. 1-4, the utility model provides technical solutions, take butterfly valve of spacing locking device, including valve body 1, valve plate 2 and valve shaft 3, valve body 1, valve plate 2 and valve shaft 3 are prior art, in the prior art, have disclosed, because do not belong to the utility model discloses technical characteristics, do not explain here in detail, actuating mechanism sets up on the top of valve shaft 3, valve plate 2 sets up in valve body 1, valve shaft 3 is connected with valve plate 2 top, and the top of valve shaft 3 extends to valve body 1 top, circular fixing base 4 is fixed to cup joint at valve body 1 outer wall top, circular fixing base 4 and inserted bar 52 cooperate and provide the stationary force of locking, valve shaft 3 outer wall fixed cup joint with circular fixing base 4 matched with spacing locking device 5, spacing locking device 5 includes fixed cup joint at the fixed disk 51 of the outer wall of valve shaft 3, fixed disk 51 rotates along with valve shaft 3, and fixed disk 51 is located circular fixing base 4 top, fixed disk 51 top has inserted bar 52 in the activity grafting, circular fixing base 4 top has evenly offered the locking 41 with inserted bar 52 that is matched with inserted bar 52, the outer wall 52, the fixed with the fixed reset spring 55 and the top of the fixed reset spring 55, the fixed reset spring 55 that the top is located the top of the fixed reset spring 55 and the fixed reset bar 55 that the fixed insert 55 that the outer wall of the fixed reset spring 55 that the fixed bottom that the outer wall of the fixed insert 52, the outer.

As shown in fig. 2 and 3, a pull disc 53 is movably arranged at the top end of an inserted rod 52 through a bearing, a bayonet 54 is fixedly arranged at the left side of the bottom of the pull disc 53, groups of bayonet grooves matched with the bayonet 54 are arranged at the top of a fixed disc 51, the bayonet and the bayonet grooves are matched to be conveniently used when a valve shaft 3 is driven through a driving structure, the reset spring 55 is always kept in a compressed state through the contact of the bayonet 54 and the top of the fixed disc 51, the inserted rod 52 can not enter a locking blind hole 41, the driving structure can normally drive the valve shaft 3 to work, and when the driving structure is maintained and the working position of a valve plate 2 needs to be fixed through the inserted rod 52 and the locking blind hole 41, the bayonet 54 also enters the bayonet groove after the inserted rod 52 enters;

as shown in fig. 1: the valve body 1 is connected with an end cover 6 at the bottom end of the valve shaft 3 in a flange mode, so that internal media are prevented from flowing out, and the sealing performance is guaranteed;

as shown in fig. 1: the valve body 1 is internally provided with a sealing ring gasket for preventing liquid from leaking from a rotating part below the valve shaft 3, a deep groove ball bearing is arranged between the sealing ring gasket and the end cover 6, the sealing performance of the valve body 1 at the valve shaft 3 is enhanced by the sealing ring gasket, so that a medium is prevented from flowing out from a rotating gap of the valve shaft 3, the cleaning of an internal medium is ensured, the deep groove ball bearing has a good circumferential lubricating effect, the friction of the valve shaft 3 during rotation is reduced, and the service life of the valve shaft 3 is prolonged;

as shown in fig. 1: vertical anti-skidding teeth are uniformly arranged on the outer wall of the circumference of the fixed disc 51 and are rubber anti-skidding teeth, so that when the driving structure is maintained, the working position of the internal valve plate 2 can be adjusted by rotating the fixed disc 51 to drive the valve shaft 3 to rotate;

as shown in FIG. 4, the number of the blind locking holes 41 is ten groups, and ten groups of blind locking holes 41 are distributed on the top of the circular fixing seat 4 along an annular array, so that the valve plate 2 can be conveniently and correspondingly locked according to the position.

In the embodiment, when the valve plate is normally used, the bayonet 54 does not enter the bayonet groove, the bayonet 54 is in contact with the top of the fixed disc 51, the return spring 55 is in a compressed state, the driving mechanism drives the valve plate 2 to normally work by driving the valve shaft 3, the fixed disc 51 rotates along with the valve shaft 3, when the butterfly valve driving mechanism needs to be disassembled for maintenance or replacement, the pull disc 53 is rotated, the bayonet 54 corresponds to the bayonet groove, the pull disc 53 is loosened, the return spring 55 drives the inserted rod 52 to downwards enter the corresponding locking blind hole 41, the bayonet 54 enters the bayonet groove, the valve shaft 3 is fixed, the working position of the valve plate 2 is fixed, the working position of the butterfly valve plate 2 is locked, is kept at the normal working position without changing, the aim of online maintenance or replacement of the butterfly valve driving mechanism is fulfilled, when the valve plate 2 needs to be closed during maintenance, the inserted rod 52 is upwards pulled by pulling the pull disc 53, the valve shaft 3 is driven by rotating the fixed disc 51 to manually adjust the valve plate 2, and the on.

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

The butterfly valve with the upper limit locking device comprises a valve body (1), a valve plate (2) and a valve shaft (3), wherein the valve plate (2) is arranged in the valve body (1), the valve shaft (3) is connected with the top of the valve plate (2), and the top end of the valve shaft (3) extends to the upper side of the valve body (1), and is characterized in that a circular fixing seat (4) is fixedly sleeved at the top of the outer wall of the valve body (1), a limit locking device (5) matched with the circular fixing seat (4) is fixedly sleeved on the outer wall of the valve shaft (3), the limit locking device (5) comprises a fixing disc (51) fixedly sleeved on the outer wall of the valve shaft (3), the fixing disc (51) is located above the circular fixing seat (4), an inserting rod (52) is movably inserted on the right side of the top of the fixing disc (51), a locking blind hole (41) uniformly matched with the inserting rod (52) is formed in the top of the circular fixing seat (4), a circular insert block (56) is fixedly sleeved at the bottom of the outer wall of the inserting rod (52), a reset spring (55) is sleeved on the outer wall of the inserting rod (52), and the reset spring (55) is connected with the fixing disc (51) at the top end of the reset spring (55).
2. The butterfly valve with limiting and locking device according to claim 1, wherein a pull disc (53) is movably disposed on the top of the inserted link (52) through a bearing, a bayonet (54) is fixedly disposed on the left side of the bottom of the pull disc (53), and sets of slots matching with the bayonet (54) are disposed on the top of the fixed disc (51).
3. type butterfly valve with limit locking device according to claim 1, wherein the valve body (1) is flanged with an end cap (6) at the bottom end of the valve shaft (3).
4. The butterfly valve with limit locking device of claim 1, wherein a sealing ring pad for preventing liquid from leaking from the rotation position below the valve shaft (3) is arranged in the valve body (1), and a deep groove ball bearing is arranged between the sealing ring pad and the end cover (6).
5. The butterfly valve with limiting and locking device, according to claim 1, wherein the fixed disk (51) has vertical anti-slip teeth uniformly arranged on its circumferential outer wall, and the anti-slip teeth are rubber anti-slip teeth.
6. The butterfly valve with limiting locking device according to claim 1, wherein the number of the blind locking holes (41) is ten groups, and ten groups of blind locking holes (41) are distributed on the top of the circular fixed seat (4) along an annular array.