Push sealing type butterfly valve

Abstract

The utility model relates to the technical field of valves, in particular to a push sealing type butterfly valve which comprises a valve body and a rotating rod which movably penetrates through the top face of the valve body in a clamped mode and extends upwards, and an opening and closing piece with the top end penetrating through the top end of the rotating rod and extending upwards is arranged on the inner wall of the valve body in an attached and rotatable mode. The top face of the valve plate is fixedly connected with the bottom end of the rotating rod, the two sides of the lower attaching block are arranged at the bottom of an inner cavity of the valve plate in a sliding mode, the top face of the lower attaching block is fixedly connected with a lower pressing rod which extends upwards and penetrates through the valve plate and the rotating rod, and a fixing structure is arranged on the middle section, located in the inner cavity of the rotating rod, of the lower pressing rod. After the bottom face of the lower attaching block is abraded, the lower pressing rod is pressed downwards to drive the lower attaching block to move downwards, and the lower attaching block is fixed through the fixing structure.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field, concretely relates to a push seal type butterfly valve. BACKGROUND

[0002] Valve is used for opening and closing pipeline, controls flow direction, adjusts and controls the parameter of pipeline accessory of conveying medium, the flow of fluid conveying in pipeline can be controlled quickly through valve, and the opening and closing of pipeline are controlled, is widely used in life or production work, a large number of raw material fluid pipeline transportation is needed in the industry, in order to better control the flow and delivery of raw material fluid, staff will install valve on pipeline, and then control pipeline transportation through valve, effectively improve the controllability of pipeline transportation, and only need to rotate to quickly open and close and control fluid flow, simple and convenient operation, strong applicability.

[0003] Although the above prior art can solve the corresponding technical problems, there are still some defects: the existing butterfly valve is used for a period of time, since the butterfly valve is controlled by rotating the valve plate to open and close, and the bottom of the valve plate is repeatedly rubbed with the bottom surface of the valve body cavity during rotation, so that the position is prone to gap due to wear and causes water leakage, when water leakage occurs, the valve plate of the butterfly valve needs to be disassembled and replaced, the maintenance cycle is short, and the service life is poor. UTILITY MODEL CONTENTS

[0004] The utility model aims at the defects and deficiencies of prior art, and provides a push seal type butterfly valve with long maintenance cycle and long service life.

[0005] To achieve the above object, the utility model adopts the following technical scheme: a push seal type butterfly valve, including valve body and rotating rod penetrating the top surface of valve body and extending upward, the inner wall of valve body is matched and rotatable, and the opening and closing part penetrating the top end of rotating rod and extending upward is arranged at the top end, the opening and closing part includes valve plate fixedly connected with the top surface of rotating rod bottom end and lower matching block slidingly arranged in the bottom of valve plate inner cavity, the lower matching block top surface is fixedly connected with lower pressing rod extending upward and penetrating valve plate and rotating rod, the fixed structure is arranged on the middle segment of rotating rod inner cavity, after the bottom surface of lower matching block is worn, the lower pressing rod is pressed to drive the lower matching block to move downward, and is fixed through the fixed structure.

[0006] Further improvement is that: the top side wall of the rotating rod is further fixedly provided with a twisting handle.

[0007] Further improvement is that: the valve body is provided with a connecting flange on both sides.

[0008] Further improvement is that: the valve plate outer wall edge is further provided with a rubber layer.

[0009] Further improvement is that the lower fitting block top surface is further provided with an elastic column between the valve plate inner cavity.

[0010] Further improvement is that the lower pressing rod top end is provided with a pressing plate.

[0011] Further improvement is that the fixing structure comprises a sliding sleeve integrally formed in the rotary rod inner cavity, and a sliding rod slidingly arranged in the sliding sleeve and fixed at the lower pressing rod middle section, the sliding sleeve inner wall is integrally formed with a plurality of embedding grooves, the sliding rod corresponding side wall is slidingly provided with a plurality of bullet-shaped fixing blocks, and the fixing block one side and the sliding rod side wall are provided with elastic elements.

[0012] After the above technical scheme is used, the utility model has the beneficial effects that after a period of use, if the bottom is abraded, the lower pressing rod can be pushed down by hand, so that the lower pressing rod drives the lower fitting block to move downward and press the valve body inner wall, and the fixing structure is used to position the lower pressing rod to prevent it from moving upward again, thereby greatly prolonging the disassembly and maintenance period and the service life of the valve. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0014] Fig. 1 It is the structure schematic diagram of the front view section of the butterfly valve of the utility model;

[0015] Fig. 2 It is the structure schematic diagram of the left view section of the valve plate of the utility model;

[0016] Fig. 3 It is the structure schematic diagram of the front view section of the fixing structure of the utility model. DETAILED DESCRIPTION

[0017] The utility model will be further illustrated by combining with the drawings and specific embodiments.

[0018] Referring to Figs. 1-3The technical scheme adopted in the embodiment is shown as follows: a push sealing butterfly valve, comprising a valve body 1 and a rotating rod 3 penetrating through the top surface of the valve body 1 and extending upward, the inner wall of the valve body 1 is attached to and rotatable with a valve plate 21 penetrating through the top end of the rotating rod 3 and extending upward, the valve plate 21 comprises a valve plate 21 and two lower attachment blocks 25 slidingly arranged in the inner cavity of the valve plate 21 at the bottom, the top surface of the lower attachment block 25 is fixedly connected with a downward pressing rod 28 extending upward and penetrating through the valve plate 21 and the rotating rod 3, the middle section of the inner cavity of the rotating rod 3 is provided with a fixing structure 27, the fixing structure 27 comprises a sliding sleeve 32 integrally formed in the inner cavity of the rotating rod 3 and a sliding rod 31 slidingly arranged in the sliding sleeve 32 and fixedly connected with the middle section of the downward pressing rod 28 at the upper and lower ends, a plurality of embedded grooves 33 are integrally formed in the inner wall of the sliding sleeve 32, a plurality of bullet-shaped fixing blocks 34 are slidingly arranged on the side wall of the sliding rod 31 corresponding to the embedded grooves 33, and an elastic element 35 is arranged between one side of the fixing block 34 and the side wall of the sliding rod 31, when the bottom surface of the lower attachment block 25 is worn, the downward pressing rod 28 is pressed downward to drive the lower attachment block 25 to move downward and is fixed by the fixing structure 27, in use, the valve body 1 is installed on a pipeline, at this time, water flow can be input into the inner cavity of the valve body 1 through the pipeline and transmitted through the inner cavity of the valve body 1, when it is necessary to close the inner cavity of the valve body 1, the rotating rod 3 is rotated to drive the valve plate 21 of the valve plate 2 and the lower attachment block 25 to rotate, the lower attachment block 25 is made of rubber material, which can improve the attachment and has a certain elasticity and can be deformed after being pressed, when the edges of the valve plate 21 and the lower attachment block 25 are attached to the inner cavity of the valve body 1, the inner cavity of the valve body 1 is closed, so that the water flow cannot flow, after a period of use, if the lower attachment block 25 at the bottom is worn due to repeated friction with the inner cavity of the valve body 1, the downward pressing rod 28 is pressed downward to press the lower attachment block 25 slidingly arranged at the bottom of the valve plate 21 downward, so that the lower attachment block 25 moves downward and the bottom surface thereof is attached to the inner cavity of the valve body 1, at the same time, when the downward pressing rod 28 moves downward, the sliding rod 31 in the fixing structure 27 also slides along the sliding sleeve 32, when it slides to a certain extent, the embedded groove 33 is aligned with the fixing block 34, the fixing block 34 is popped out outward under the elastic force of the elastic element 35 and is embedded into the fixing groove 33, so that the sliding rod 31 is fixed, and the bullet-shaped fixing block 34 can be pressed into the side wall of the sliding rod 31 again by force, so that the sliding rod 31 can continue to move downward, at this time, the downward pressing rod 28 drives the lower attachment block 25 to move downward and reseals the inner cavity of the valve body 1, preventing water leakage, thereby prolonging the disassembly and maintenance period and the service life of the valve;

[0019] The top side wall of the rotating rod 3 is further fixed with a twisting handle 5, which facilitates the twisting of the rotating rod 3.

[0020] The valve body 1 is provided with connecting flanges 6 on both sides, which facilitates the connection of the valve body 1 to the pipeline.

[0021] The outer wall edge of the valve plate 21 is further provided with a rubber layer 22, which facilitates the sealing effect of the valve plate 21.

[0022] The top surface of the lower fitting block 25 and the inner cavity of the valve plate 21 are further provided with an elastic column 24, which facilitates the lower fitting block 25 to always maintain a certain pressure, thereby improving the sealing effect.

[0023] The top end of the lower pressing rod 28 is provided with a lower pressing plate 26, which facilitates the lower pressing of the lower pressing rod 28, and the force plane is larger, and the use is better.

[0024] The working principle of the utility model: when the utility model is used, the valve body 1 is installed on the pipeline, at this time, water flow can be input into the inner cavity of the valve body 1 through the pipeline, and transmission is carried out through the inner cavity of the valve body 1, when it is necessary to close the inner cavity of the valve body 1, only the rotating rod 3 is rotated, the valve plate 21 and the lower fitting block 25 of the opening and closing element 2 are driven to rotate, the lower fitting block 25 is made of rubber material, the fitting degree can be improved, and it has a certain elasticity, after being extruded, it can be deformed, when the edge of the valve plate 21 and the lower fitting plate 25 is fitted in the inner cavity of the valve body 1, the inner cavity of the valve body 1 can be closed, so that the water flow cannot circulate, after a period of use, if the lower fitting block 25 at the bottom is worn out due to repeated friction with the inner cavity of the valve body 1, the lower pressing rod 28 can be pressed down, the lower fitting plate 25 at the bottom of the valve plate 21 is extruded and slid downward by the lower pressing rod 28, the lower fitting plate 25 moves downward and reattaches to the inner cavity of the valve body 1, at the same time, when the lower pressing rod 28 moves downward, the sliding rod 31 in the fixed structure 27 also slides along the sliding sleeve 32, when it slides to a certain extent, the embedded groove 33 is aligned with the fixed block 34, the fixed block 34 is extruded outward under the elastic force of the elastic element 35, is embedded into the fixed groove 33, and the sliding rod 31 is fixed, and the bullet-shaped structure of the fixed block 34 can be re-pressed into the sliding rod 31, so that the sliding rod 31 can continue to descend, at this time, the lower fitting block 25 can be driven to move downward and reseal the inner cavity of the valve body 1 by the lower pressing rod 28, so as to prevent wear and leakage, thereby greatly prolonging the disassembly and maintenance period and the service life of the valve.

[0025] The utility model wants to protect the structure of product, the model of each element is not the content of the utility model protection, is also the known art, the market element as long as can realize the above-mentioned function of the utility model can be as a kind of selection application. Therefore the model of element and so on parameter is not detailed in the utility model. The contribution of the utility model is that each element is combined scientifically together.

[0026] The basic principle and main features of the utility model and its advantages are shown and described above, and those skilled in the art should understand that the utility model is not limited by the above examples. The above examples and descriptions are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can have various changes and improvements. These changes and improvements fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents. The utility model not detailed is the known technology of those skilled in the art.

Claims

1. A push-to-seal butterfly valve, comprising a valve body (1) and a rotating rod (3) which is movably clamped through the top surface of the valve body (1) and extends upwardly, and a shutter (2) which is attached to the inner wall of the valve body (1) and can rotate, penetrates the top end of the rotating rod (3) and extends upwardly, characterized in that: The opening and closing part (2) comprises a valve plate (21) fixedly connected with the bottom end of a rotating rod (3) and lower matching blocks (25) slidingly arranged in the bottom of the inner cavity of the valve plate (21), the top surface of the lower matching block (25) is fixedly connected with a downward extending lower pressing rod (28) penetrating the valve plate (21) and the rotating rod (3), the lower pressing rod (28) is provided with a fixing structure (27) on the middle segment of the inner cavity of the rotating rod (3), when the bottom surface of the lower matching block (25) is worn, the lower pressing rod (28) is pressed to drive the lower matching block (25) to move downward, and the lower matching block (25) is fixed through the fixing structure (27).

2. A push to seal butterfly valve according to claim 1, wherein: The top part of the rotating rod (3) is further fixedly provided with a twisting handle (5).

3. A push to seal butterfly valve according to claim 1, wherein: The valve body (1) is provided with connecting flanges (6) on both sides.

4. The push to seal butterfly valve of claim 1, wherein: The outer wall edge of the valve plate (21) is further provided with a rubber layer (22).

5. The push to seal butterfly valve of claim 1, wherein: The top surface of the lower matching block (25) and the inner cavity of the valve plate (21) are further provided with elastic columns (24).

6. A push to seal butterfly valve according to claim 1, wherein: The top end of the lower pressing rod (28) is provided with a lower pressing plate (26).

7. A push to seal butterfly valve as claimed in claim 1, wherein: The fixing structure (27) comprises a sliding sleeve (32) integrally formed in the inner cavity of the rotating rod (3) and a sliding rod (31) slidingly arranged in the sliding sleeve (32) and fixedly arranged on the middle segment of the lower pressing rod (28), the inner wall of the sliding sleeve (32) is integrally formed with a plurality of embedding grooves (33), the side wall of the sliding rod (31) corresponding to the embedding grooves (33) is slidingly provided with a plurality of bullet-shaped fixing blocks (34), and the side of the fixing block (34) and the side wall of the sliding rod (31) are provided with elastic elements (35).

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