CN213017788U

CN213017788U - Gate valve opening and closing device convenient to operate

Info

Publication number: CN213017788U
Application number: CN202021553811.1U
Authority: CN
Inventors: 李艳超; 闫桂东; 孔德松
Original assignee: Tianjin Haitongda Petroleum Machinery Co ltd
Current assignee: Tianjin Haitongda Petroleum Machinery Co ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-04-20
Anticipated expiration: 2030-07-30

Abstract

The utility model discloses a slide valve headstock gear convenient to operation, including the valve body, the valve body lateral wall sets up the control box, the fixed column is connected to the control box inside wall, the conversion bearing is connected to the fixed column free end, conversion bearing one side is connected control rod and opposite side and is connected Y type connecting rod, Y type connecting rod opposite side sets up the integral key shaft, integral key shaft one end is rotated with the control box lateral wall and is connected, the integral key shaft other end passes the setting of control box lateral wall in the control box outside, integral key shaft outside suit axle sleeve, axle sleeve lateral wall middle part sets up the fixed column, Y type connecting rod passes through the spliced pole with the axle sleeve and rotates and be connected. The beneficial effects of the utility model are that, the multiple seal of gate valve has been realized to the double-gate board, has strengthened sealed effect, and the cooperation of gear and rack has realized opening and closing of flashboard, and the control rod has realized the switching of medium flow direction in the pipeline, and the axle sleeve is convenient for accomplish the conversion operation with the integral key shaft, reduces the friction simultaneously, has improved the life of equipment.

Description

Gate valve opening and closing device convenient to operate

Technical Field

The utility model belongs to the technical field of the valve, especially, relate to a slide valve headstock gear convenient to operation.

Background

The gate valve is one of the most commonly used shut-off valves, and is mainly used for connecting or shutting off a medium in a pipeline and is not used for regulating the flow of the medium. The applied pressure, temperature and diameter range are very large, especially applied to the pipelines with medium and large diameters, the gate valve in the prior art can only realize the medium on-off in one direction generally, when different pipelines are switched for some media from the same direction, a plurality of valves are often needed to be added and operated to realize the medium on-off, the on-off of the medium can not be cut off in time in some emergency situations, economic loss is caused, the pipe network structure becomes complicated, the maintenance cost is high, the operation is inconvenient and the like.

SUMMERY OF THE UTILITY MODEL

The to-be-solved problem of the utility model is to provide a gate valve headstock gear simple structure, easy and simple to handle.

In order to solve the technical problem, the utility model discloses a technical scheme is:

a gate valve opening and closing device convenient to operate comprises a valve body, wherein a control box is arranged on the side wall of the valve body, a fixed column is connected to the inner side wall of the control box, the free end of the fixed column is connected with a conversion bearing, one side of the conversion bearing is connected with an operating rod, the other side of the conversion bearing is connected with a Y-shaped connecting rod, the other side of the Y-shaped connecting rod is provided with a spline shaft, one end of the spline shaft is rotatably connected with the side wall of the control box, the other end of the spline shaft penetrates through the side wall of the control box and is arranged outside the control box, a shaft sleeve is sleeved outside the spline shaft, the middle part of the outer side wall of the shaft sleeve is provided with the fixed column, the Y-shaped connecting rod is rotatably connected with the shaft sleeve through the connecting column, gears are symmetrically arranged at two ends of the shaft sleeve along the Y-shaped connecting rod, the connecting pipe is arranged in the middle of the side wall of the valve body and communicated with the valve body and located between the first flashboard and the second flashboard.

Preferably: the first gate plate and the second gate plate are tightly attached to the inner groove of the valve body when moving to the maximum stroke along the radial direction of the valve body.

So set up, guaranteed that the flashboard can cut off the medium in the valve body completely.

Preferably: and mounting flanges are respectively arranged at two ends of the valve body, and a flange sealing gasket is attached to one side of each mounting flange.

So set up, the installation of valve body and pipeline of being convenient for, multiplicable pipeline and valve body junction leakproofness prevents that the medium from leaking simultaneously.

Preferably: and a hand wheel is arranged at the outer side end of the spline shaft positioned on the side wall of the control box.

So set up, the operation of being convenient for makes the ooff valve more laborsaving.

Preferably: the first flashboard the second flashboard with valve body laminating portion is provided with the sealed pad of multichannel flashboard.

So set up, promoted the leakproofness between flashboard and the valve body, reduced the friction between flashboard and the valve body simultaneously, improved life.

Preferably: the upper portion of the control box is provided with an upper cover, the upper cover is provided with an opening, the free end of the operating rod penetrates through the opening to be arranged on the outer side of the upper cover, and the upper cover is connected with the control box through a bolt.

So set up, can prevent that impurity from getting into the control box, be convenient for moreover to the maintenance and the overall operation of control box.

The utility model has the advantages and positive effects that:

1. the gate valve is multi-channel sealed through the double gate plates, and the sealing effect is enhanced.

2. The opening and closing of the flashboard are realized through the matching of the gear and the rack, and the switching of the flowing direction of the medium in the pipeline is realized through the arrangement of the operating rod.

3. The arrangement of the shaft sleeve and the spline shaft facilitates the completion of conversion operation, reduces friction and prolongs the service life of equipment.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is an axonometric view of a gate valve opening and closing device convenient to operate according to the present invention;

fig. 2 is a cross-sectional axial view of a gate valve opening and closing device convenient to operate according to the present invention;

fig. 3 is a gear and rack structure diagram of the gate valve opening and closing device convenient to operate according to the present invention;

fig. 4 is a structure diagram of an operating lever of the gate valve opening and closing device convenient to operate according to the present invention;

the reference numerals are explained below:

1. a valve body; 2. installing a flange; 3. a connecting pipe; 4. a hand wheel; 5. a flange gasket; 6. A control box; 7. a first shutter plate; 8. a second shutter plate; 9. a shutter plate gasket; 10. a rack; 11. a spline shaft; 12. a shaft sleeve; 13. a gear; 14. connecting columns; 15. a Y-shaped connecting rod; 16. a conversion bearing; 17. fixing a column; 18. a joystick; 19. and (7) covering.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be further explained with reference to the accompanying drawings:

example 1

As shown in fig. 1 to 4, a gate valve opening and closing device convenient to operate comprises a valve body 1, and is characterized in that: the side wall of the valve body 1 is provided with a control box 6, the inner side wall of the control box 6 is connected with a fixed column 17, the free end of the fixed column 17 is connected with a conversion bearing 16, one side of the conversion bearing 16 is connected with an operating lever 18, the other side of the conversion bearing is connected with a Y-shaped connecting rod 15, the other side of the Y-shaped connecting rod 15 is provided with a spline shaft 11, one end of the spline shaft 11 is rotationally connected with the side wall of the control box 6, the other end of the spline shaft 11 penetrates through the side wall of the control box 6 and is arranged at the outer side of the control box 6, the outer side of the spline shaft 11 is sleeved with a shaft sleeve 12, the middle part of the outer side wall of the shaft sleeve 12 is provided with the fixed column 17, the Y-shaped connecting rod 15 is rotationally connected with the shaft sleeve 12 through a connecting column 14, two ends of, the middle part of the side wall of the valve body 1 is provided with a connecting pipe 3, and the connecting pipe 3 is communicated with the valve body 1 and is positioned between the first flashboard 7 and the second flashboard 8.

The working process of the embodiment: the operator fixes the equipment to the pipeline to be installed through the installation flange 2, the operator pushes the operating lever 18 forward, the shaft sleeve 12 slides along the spline shaft 11, the gear 13 on one side is separated from the rack 10, and the opening and closing operation of the single gate plate is realized; otherwise, when the operator pulls the operating lever 18 backwards, the gear 13 on the other side is separated from the rack 10, and the opening and closing operation of the other gate plate is realized; if the operator member hits the lever 18 to the center position, the two shutters can be opened and closed at the same time.

Preferably: the first flashboard 7 and the second flashboard 8 are tightly attached to the inner groove of the valve body 1 when moving to the maximum stroke along the radial direction of the valve body 1, the flashboard can completely cut off the medium in the valve body, the mounting flange 2 is respectively arranged at the two ends of the valve body 1, the flange sealing gasket 5 is arranged at one side of the mounting flange 2 in an attaching mode, the installation of the valve body and a pipeline is convenient, meanwhile, the sealing performance of the joint of the pipeline and the valve body can be improved, the medium leakage is prevented, the hand wheel 4 is arranged at the outer side end of the side wall of the control box 6 on the spline shaft 11, the operation is convenient, the switching valve is more labor-saving, the attaching part of the first flashboard 7, the second flashboard 8 and the valve body 1 is provided with the plurality of flashboard sealing gaskets 9, the sealing performance between the flashboards and the valve body is improved, meanwhile, the friction between the flashboards, the upper cover 19 is connected with the control box 6 through bolts, so that impurities can be prevented from entering the control box, and the control box is convenient to overhaul and integrally operate.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. The utility model provides a slide valve headstock gear convenient to operation, includes valve body (1), its characterized in that: the side wall of the valve body (1) is provided with a control box (6), the inner side wall of the control box (6) is connected with a fixed column (17), the free end of the fixed column (17) is connected with a conversion bearing (16), one side of the conversion bearing (16) is connected with an operating rod (18) and the other side is connected with a Y-shaped connecting rod (15), the other side of the Y-shaped connecting rod (15) is provided with a spline shaft (11), one end of the spline shaft (11) is rotationally connected with the side wall of the control box (6), the other end of the spline shaft (11) penetrates through the side wall of the control box (6) and is arranged outside the control box (6), the outer side of the spline shaft (11) is sleeved with a shaft sleeve (12), the middle part of the outer side wall of the shaft sleeve (12) is provided with the fixed column (17), the Y-shaped connecting rod (15) is rotationally connected with the, gear (13) one side sets up rack (10) respectively, first flashboard (7) and second flashboard (8) are connected respectively to rack (10) one end, first flashboard (7) with second flashboard (8) all pass valve body (1) lateral wall and with valve body (1) inside wall sliding connection, valve body (1) lateral wall middle part sets up connecting pipe (3), connecting pipe (3) with valve body (1) intercommunication just is located first flashboard (7) with between second flashboard (8).

2. The gate valve opening and closing device convenient to operate as claimed in claim 1, wherein: the first gate plate (7) and the second gate plate (8) are tightly attached to the inner groove of the valve body (1) when radially moving to the maximum stroke of the valve body (1).

3. The gate valve opening and closing device convenient to operate as claimed in claim 1, wherein: the valve body (1) both ends set up mounting flange (2) respectively, the laminating of mounting flange (2) one side sets up flange sealing pad (5).

4. The gate valve opening and closing device convenient to operate as claimed in claim 1, wherein: the spline shaft (11) is located a hand wheel (4) is arranged at the outer side end of the side wall of the control box (6).

5. The gate valve opening and closing device convenient to operate as claimed in claim 1, wherein: first flashboard (7) second flashboard (8) with valve body (1) laminating portion is provided with the sealed pad (9) of multichannel flashboard.

6. The gate valve opening and closing device convenient to operate as claimed in claim 1, wherein: an upper cover (19) is arranged on the upper portion of the control box (6), an opening is formed in the upper cover (19), the free end of the operating rod (18) penetrates through the opening to be arranged on the outer side of the upper cover (19), and the upper cover (19) is connected with the control box (6) through a bolt.