CN210106634U

CN210106634U - Gate valve with good sealing performance

Info

Publication number: CN210106634U
Application number: CN201920966499.XU
Authority: CN
Inventors: 潘伟
Original assignee: Wuxi Rong Yuan Environmental Protection Equipment Co Ltd
Current assignee: Wuxi Rong Yuan Environmental Protection Equipment Co Ltd
Priority date: 2019-06-26
Filing date: 2019-06-26
Publication date: 2020-02-21
Anticipated expiration: 2029-06-26

Abstract

The utility model provides a push-pull valve that leakproofness is good, which comprises a housin, the casing side is provided with the slotted hole, it is provided with the picture peg to slide in the slotted hole, the casing side is connected with the framework, the framework covers in the outside of slotted hole, the other end of framework is connected with the apron, the middle part of apron is provided with the through-hole, the lateral surface of apron is provided with the lead screw cover in through-hole department, the tip of lead screw cover is provided with the bearing frame, it is equipped with the lead screw through the bearing cover in the bearing frame, the outer end connection of lead screw has the hand wheel, in tip inserts the through-hole, tip's outside cover is equipped with the lead screw sleeve pipe, lead screw and lead screw sleeve pipe. The utility model provides a push-pull valve that leakproofness is good converts the sealed of board cross-section circumference into the sealed of pipe cross-section circumference, and sealed face is little, and the leakproofness is good, and sealed effect hold time is long, and it is easy to maintain moreover, has reduced manufacturing cost.

Description

Gate valve with good sealing performance

Technical Field

The utility model relates to a push-pull valve especially relates to a push-pull valve that leakproofness is good.

Background

The gate valve is a valve for realizing the on-off of the drift diameter, and the principle is that a shell matched with the drift diameter is arranged, a plug board is arranged on the side surface of the shell, and the on-off of the drift diameter is realized by controlling the pulling-out and inserting actions of the plug board. For the gate valve shown in fig. 1, the sealing performance of the sliding connection part between the gate and the housing is particularly important, and leakage often occurs here, however, because the sealing between the gate and the housing needs to cover the whole circumferential direction of the cross section of the gate, the sealing surface is large, the sealing effect is difficult to maintain for a long time, frequent maintenance is needed, and the production cost is increased.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a push-pull valve that the leakproofness is good, and sealed effect holding time is long.

In order to solve the technical problem, the utility model provides a following technical scheme:

a gate valve with good sealing performance comprises a shell, wherein the side surface of the shell is provided with a slotted hole, a gate plate is arranged in the slotted hole in a sliding manner, the side surface of the casing body, which is provided with the slotted hole, is connected with a frame body, the frame body covers the outer side of the slotted hole, the other end of the frame body is connected with a cover plate, the middle part of the cover plate is provided with a through hole, the outer side surface of the cover plate is provided with a screw rod sleeve at the through hole, the end part of the screw rod sleeve is provided with a bearing seat, a screw rod is sleeved in the bearing seat through a bearing, the outer end part of the screw rod is connected with a hand wheel, the inner end part of the screw rod is inserted into the through hole, the outer side of the inner end part of the screw rod is sleeved with a screw rod sleeve, the screw rod is in threaded connection with the screw rod sleeve, the outer side of the end part of the screw rod sleeve is provided with a connecting plate, the connecting plate is fixedly connected with the inserting plate, and a sealing ring is arranged between the inner side surface of the through hole and the screw rod sleeve.

Further, the connecting plate is two splint of parallel arrangement, the picture peg inserts two between the splint, be provided with corresponding screw and pass through bolt fixed connection on splint and the picture peg.

Furthermore, the outer side surface of the screw rod sleeve is connected with the inner side surface of the screw rod sleeve in a sliding fit mode.

The utility model relates to a push-pull valve that leakproofness is good converts the sealed of board cross-section circumference into the sealed of pipe cross-section circumference, and sealed face is little, and the leakproofness is good, and sealed effect hold time is long, and it is easy to maintain moreover, has reduced manufacturing cost.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of a conventional gate valve;

fig. 2 is a schematic front view of the present invention;

fig. 3 is a schematic top view of the present invention.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

As shown in figure 2 of the drawings, in which, 3, the gate valve with good sealing performance comprises a shell 1, a slotted hole is formed in the side face of the shell 1, a plug board 2 is arranged in the slotted hole in a sliding mode, a frame body 3 is connected to the side face, provided with the slotted hole, of the shell 1, the frame body 3 covers the outer side of the slotted hole, the other end of the frame body 3 is connected with a cover plate 4, a through hole is formed in the middle of the cover plate 4, a screw rod sleeve 5 is arranged on the outer side face of the cover plate 4 in the through hole, a bearing seat 6 is arranged at the end portion of the screw rod sleeve 5, a screw rod 7 is sleeved in the bearing seat 6 through a bearing, a hand wheel 8 is connected to the outer end portion of the screw rod 7, the inner end portion of the screw rod 7 is inserted into the through hole, a screw rod sleeve 9 is sleeved on the.

The working principle is as follows:

the hand wheel is rotated to rotate the screw rod, the screw rod sleeve is driven to move along the screw rod, the inserting plate is driven to move, the sealing structure is located between the cover plate and the screw rod sleeve, the sealing surface is small, the sealing effect is good, and the maintenance is easy.

The connecting plate is two splint 10 of parallel arrangement, and picture peg 2 inserts between two splint 10, is provided with corresponding screw and passes through bolt fixed connection on splint 10 and the picture peg 2. The connection mode is more stable, and the situation that the plugboard floats can not occur.

The lateral surface of the screw rod sleeve 9 is connected with the medial surface of the screw rod sleeve 5 in a sliding fit manner, so that even if materials leak, the materials are not easy to enter the space between the screw rod sleeve and the screw rod, and the leakage-proof effect is better.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a push-pull valve that leakproofness is good, includes the casing, the side of casing is provided with the slotted hole, it is provided with picture peg, its characterized in that to slide in the slotted hole: the casing sets up the side of slotted hole is connected with the framework, the framework covers the outside of slotted hole, the other end of framework is connected with the apron, the middle part of apron is provided with the through-hole, the lateral surface of apron is in through-hole department is provided with the lead screw cover, the tip of lead screw cover is provided with the bearing frame, it is equipped with the lead screw to overlap through the bearing in the bearing frame, the outer end connection of lead screw has the hand wheel, insert in the lead screw the through-hole, the outside cover of tip in the lead screw is equipped with the lead screw sleeve pipe, lead screw and lead screw sleeve pipe threaded connection, the sheathed tube tip outside of lead screw is provided with the connecting plate, the connecting plate with picture peg fixed connection, the through-hole.

2. The good-sealing gate valve as claimed in claim 1, wherein: the connecting plate is two splint of parallel arrangement, the picture peg inserts two between the splint, be provided with corresponding screw and pass through bolt fixed connection on splint and the picture peg.

3. The good-sealing gate valve as claimed in claim 1, wherein: the outer side surface of the screw rod sleeve is connected with the inner side surface of the screw rod sleeve in a sliding fit mode.