CN217762125U

CN217762125U - Translation formula push-pull valve

Info

Publication number: CN217762125U
Application number: CN202220817875.0U
Authority: CN
Inventors: 张万军
Original assignee: Tianjin Shineng Technology Co ltd
Current assignee: Tianjin Shineng Technology Co ltd
Priority date: 2022-04-11
Filing date: 2022-04-11
Publication date: 2022-11-08
Anticipated expiration: 2032-04-11

Abstract

The utility model discloses a translation formula push-pull valve, including preceding fixed pair, movable valve plate and actuating mechanism, the removal is vice and the after-fixing is vice, the movable valve plate includes interconnect's hollow valve plate and solid valve plate frame in addition for the frame inslot of constituteing by the channel-section steel is installed to driven chain. The two valve plates and the outer frame are arranged on the guide wheel between the front fixed pair and the moving pair, and the outer frame can move left and right on the guide wheel. The front fixed pair and the moving pair are connected with each other through four lead screws and matched nuts, and linkage is realized through a crank connecting rod. The utility model discloses a sprocket chain is as actuating mechanism, and the cost is reduced adopts frame and leading wheel roll cooperation, has simplified the valve structure, has alleviateed weight, also the cost is reduced when convenient transportation and installation, facilitate promotion.

Description

Translation formula push-pull valve

Technical Field

The utility model relates to the technical field of valves, especially, relate to a translation formula push-pull valve.

Background

The purpose of the gate valve is to play a role in opening and cutting off media in an industrial pipeline, after cutting off, the phenomenon of media leakage cannot occur inside and outside the pipeline, and the gate valve is more important especially when the media in the pipeline are toxic and harmful. When the existing gate valve is opened, the sliding pair is firstly far away from the solid valve plate, and simultaneously the valve plate and the outer frame are pulled to be far away from the front fixing pair. Then the valve plate and the outer frame horizontally move along the radial direction, the solid valve plate leaves, the hollow valve plate is aligned to the sealing flange on the front fixing pair, then the valve plate stops, the moving pair starts to move towards the hollow valve plate, contacts and pushes the hollow valve plate to generate axial displacement, and the hollow valve plate and the moving pair move together towards the front fixing pair until the hollow valve plate and the fixed valve plate are completely clamped and then stop. The valve closing process repeats the above operations except that the valve plate moves in the opposite direction. In the process, the valve plate and the outer frame horizontally move along the radial direction to realize the function, two sides of the valve body respectively extend out of a section of horizontal cross beam along the radial direction, a long guide rail is arranged below the cross beam, the outer frame of the valve plate is hung below the long guide rail through two rollers arranged at the top of the outer frame of the valve plate, and meanwhile, the valve plate and the outer frame also generate certain displacement along the axial direction, so a pair of axially moving rollers and short guide rails for generating axial displacement are required to be arranged on the outer frame of the valve plate. The existing valve has the disadvantages of complex structure, large overall dimension, heavy weight and high cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a translation type gate valve which has simple and reliable structure, low cost, light weight and convenient installation aiming at the technical defects in the prior art,

for realizing the utility model discloses a technical scheme that the purpose adopted is:

the utility model provides a translation formula push-pull valve, includes preceding fixed pair, movable valve plate and actuating mechanism, sliding pair and back fixed pair, preceding fixed pair connects into an overall structure through two back timber and two floorbars and back fixed pair. In the integral structure, four corners of the front fixed pair are connected with four corners of the moving pair through four positive and negative screw rods, four guide wheels are respectively sleeved on the four screw rods, and the movable valve plate can horizontally move among the four guide wheels to switch the valve plate so as to realize the opening and closing of the valve. The movable valve plate comprises a hollow valve plate, a solid valve plate and a valve plate outer frame which are connected with each other. The valve plate outer frame is formed by welding channel steel, the opening of the channel steel faces the guide wheel, and two end faces of two sides of the opening of the channel steel are tangent to the guide wheel to form rolling fit. And the left vertical frame and the right vertical frame of the valve plate outer frame are respectively provided with a limiting block at the positions tangent to the outer peripheral surfaces of the hollow valve plate and the solid valve plate. The driving mechanism comprises a chain, a chain wheel shaft and a shaft sleeve, the chain is installed in a channel steel of the valve plate outer frame, and the chain wheel is fixed on the front fixing pair through the chain wheel shaft and the shaft sleeve and is meshed with the chain. One ends of four screw rods which are vertically arranged in the axial direction penetrate through nuts which are matched with the moving pair, and one sides of the corrugated pipes are connected with each other through a crank and a connecting rod to form a linkage mechanism to drive the moving pair, so that the corrugated pipes connected between the moving pair and the rear fixing pair are compressed or extended. And supporting casters are arranged at the bottom of the sliding pair, so that the sliding pair can move back and forth on the bottom beam conveniently.

Compared with the prior art, the beneficial effects of the utility model are that:

the movable valve plate frame is with the channel-section steel as the frame, and because of the both ends face of channel-section steel opening both sides is narrower, and is little with leading wheel area of contact, when reducing frictional force, dust or impurity in the outdoor environment are difficult for piling up, and difficult production card when the valve plate is controlled about is dunked, and in addition, drive chain installs the recess on the channel-section steel in, has saved the space, has reduced the overall dimension of valve plate frame. The utility model discloses to the crossbeam and the guide rail that hang movable valve plate, change frame and leading wheel roll cooperation into, simplified the valve structure, alleviateed weight, convenient transportation and installation also reduce cost, facilitate promotion simultaneously.

Drawings

Fig. 1 is a schematic view of a gate valve according to the present invention, partially cut away and partially enlarged.

Fig. 2 is a left side view schematic diagram of the gate valve of the present invention.

Fig. 3 is a schematic top view of the gate valve of the present invention.

Fig. 4 is a schematic axial view of the gate valve of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific embodiments. The specific embodiments described herein are merely illustrative of the invention and are not intended to be limiting of the invention.

As shown in fig. 1 to 4, the embodiment of the present invention provides a translation type gate valve, including the front fixing pair 21, the moving pair 19, the rear fixing pair 16, the movable valve plate composed of the hollow valve plate 2, the solid valve plate 12 and the outer frame, and the driving mechanism of the movable valve plate: comprises a chain 7, a chain wheel 8, a chain wheel shaft 9 and a shaft sleeve 29; the sprocket shaft 9 is provided with a square connector on one side of the front fixing pair 21 close to the flange 22. The bottoms of the front fixing pair 21 and the rear fixing pair 16 are fixed on the underframe 13, and the top ends are connected through the connecting plate 4 to form a fixed frame structure. Four screw rods 6 with positive and negative teeth are axially and vertically arranged at the four corners of the front fixing pair 21 and the moving pair 19, one end of each screw rod is meshed with the four left-handed nuts 5 on the front fixing pair 21, the other end of each screw rod is meshed with the four right-handed nuts 10 on the moving pair 19, and a square connector is reserved on one side, close to the flange 22, of one screw rod 6 of the front fixing pair 21. Each screw rod is provided with a guide wheel 20 which forms rolling fit with the valve plate

outer frames

3 and 15 so as to facilitate the reciprocating movement of the movable valve plate and the switching of the valve plate. The four screw rods 6 are connected together at one side of the moving pair 19 close to the corrugated pipe 17 through a crank 25 and a connecting rod 18 to form a linkage mechanism to drive the moving pair 19, so that the corrugated pipe 17 connected between the moving pair 19 and the rear fixed pair 16 is compressed or extended. The moving pair 19 and the front fixed pair 21 work together to loosen or clamp the valve plate. The left vertical frame 11 and the right vertical frame 11 of the valve plate outer frame are respectively provided with a limiting block 1, the corrugated pipe 17 is connected with a flange 27 through a pipeline 26, the pipeline 26 is fixedly installed on the rear fixing pair 16, wherein the hollow valve plate 2 and the solid valve plate 12 in the movable valve plate are respectively provided with corresponding sealing strips 28 on the two side end faces corresponding to the front fixing pair 21 and the moving pair 19. Sealing

flanges

23 and 24 are respectively arranged on the end faces of the front fixed pair 21 and the moving pair 19 corresponding to the sealing strip 28, and two supporting casters 14 are arranged at the bottom of the moving pair 19 and supported on the bottom frame 13 so as to facilitate the moving pair 19 to move along the axial direction, and the sealing is realized by clamping the valve plate by matching with the front fixed pair 21.

As an alternative embodiment, the driving mechanism adopts a chain wheel and chain transmission mechanism, such as: comprises a chain wheel 8, a chain 7, a chain wheel shaft 9 and a shaft sleeve 29. When the valve is opened, one of the screw rods 6 is driven by a motor to drive the connected crank link mechanism, so that the four screw rods 6 with positive and negative teeth are linked, the moving pair 19 moves towards the corrugated pipe 17 to compress the corrugated pipe 17, and the motor stops rotating after the moving pair 19 reaches a set position. The other motor driving chain wheel 8 is connected to drive the movable valve plate to move horizontally through the chain 7, so that after the hollow valve plate 12 is aligned with the front fixed pair 21 and the moving pair 19, the movable valve plate is clamped by the limiting block 1, and meanwhile, the motor stops rotating. The motor driving the screw rod 6 rotates reversely, the moving pair 19 is far away from the corrugated pipe 17, the corrugated pipe 17 is extended, the

sealing flanges

23 and 24 on the front fixed pair 21 and the moving pair 19 press the sealing ring 28 on the solid valve plate, and then the motor stops rotating. When the valve is closed, the above operations are repeated, and the moving directions of the valve plate are opposite.

The utility model discloses a push-pull valve, the drive the chain that the valve plate removed can install in the top channel-section steel of valve plate frame, also can install in the bottom channel-section steel of valve plate frame, equally, sprocket and sprocket shaft and axle sleeve correspond and install in preceding fixed pair lower part, with the position of chain looks meshing. The driving mechanism of the movable valve plate can adopt the chain wheel matched with the chain, also can adopt a gear matched with a rack, and can also adopt a pin gear matched with a pin rack, an electric push rod, a screw rod, or a cylinder and other mechanisms to drive the horizontal movement of the movable valve plate, and is not limited specifically.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a translation formula push-pull valve which characterized in that: the movable valve plate horizontal moving mechanism comprises a front fixing pair, a movable valve plate and a driving mechanism thereof, a moving pair and a rear fixing pair, wherein the front fixing pair is connected with the rear fixing pair into an integral structure through two top beams and two bottom beams, in the integral structure, the driving mechanism drives the movable valve plate to horizontally move on a guide wheel arranged between the front fixing pair and the moving pair, and the moving pair is connected with the rear fixing pair through a corrugated pipe.

2. The translation type gate valve according to claim 1, characterized in that: four corners of the front fixing pair are connected with four corners of the moving pair through four positive and negative screw rods, four guide wheels are respectively sleeved on the four screw rods, the four screw rods are axially and vertically arranged, one side of the front fixing pair, which is close to the flange, is reserved with a square connector, the other ends of the four screw rods penetrate through nuts matched with the front fixing pair on the moving pair, and one side of the corrugated pipe is connected with one another through a crank and a connecting rod.

3. The translation type gate valve according to claim 1, characterized in that: the movable valve plate comprises a hollow valve plate, a solid valve plate and a valve plate outer frame which are connected with each other, the valve plate outer frame is formed by welding channel steel, the opening of the channel steel faces the guide wheel, and two end faces on two sides of the opening of the channel steel are tangent to the guide wheel to form rolling fit.

4. The translation type gate valve according to claim 1, wherein: the driving mechanism comprises a chain, a chain wheel shaft and a shaft sleeve, wherein the chain is installed in a channel steel of the valve plate outer frame, the chain wheel is fixed on the front fixing pair through the chain wheel shaft and the shaft sleeve and is engaged with the chain, and a square connector is reserved on one side, close to the flange, of the front fixing pair through the chain wheel shaft and the shaft sleeve.

5. The translation type gate valve according to claim 3, characterized in that: the upper, lower, left and right frames forming the outer frame of the movable valve plate are respectively tangent with the outer peripheral surfaces of the hollow valve plate and the solid valve plate, and a limiting block is respectively arranged at two tangent points on the left and right vertical frames.

6. The translation type gate valve according to claim 1, wherein: and supporting casters are arranged at the bottom of the sliding pair to support the sliding pair on the bottom beam.