High-sealing-performance valve

Abstract

The utility model discloses a high-sealing-performance valve which comprises a valve body, the two ends of the valve body are provided with a first connector and a second connector respectively, a first through hole and a second through hole are formed in an inner cavity of the valve body, a plugging piece is arranged between the first through hole and the second through hole, and the top end of the plugging piece is connected with a lifting mechanism. The plugging piece is driven by the lifting mechanism to ascend and descend so as to plug or open the first through hole and the second through hole, a first flow channel is formed in an inner cavity of the first connector, and a second flow channel is formed in an inner cavity of the second connector. The electric push rod is arranged to drive the metal block and the sealing sleeve arranged on the metal block in a sleeving mode to ascend and descend together to achieve opening and closing of the valve, so that the sealing sleeve ascends and descends and does not generate rotating friction with any component, abrasion of the sealing sleeve is reduced, and a better sealing effect can be achieved; meanwhile, the service life of the valve is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field, concretely is a kind of high sealing property valve. BACKGROUND

[0002] Valve is used to open and close pipeline, control flow direction, adjust and control the parameter (temperature, pressure and flow) of conveying medium. According to its function, it can be divided into shut-off valve, check valve, regulating valve, etc. Valve is the control component in fluid conveying system, with the functions of stop, regulation, flow guide, anti-backflow, pressure stabilization, shunt or overflow pressure relief, etc. Valves used in fluid control systems range from the simplest shut-off valve to the most complex self-control system, with a wide variety of types and specifications. Valves can be used to control the flow of air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive medium, etc. Valves are also divided by material into cast iron valves, cast steel valves, stainless steel valves (201, 304, 316, etc.), chromium-molybdenum steel valves, chromium-molybdenum-vanadium steel valves, duplex steel valves, plastic valves, non-standard customized valves, etc.

[0003] The existing valve has the following shortcomings:

[0004] The valve stem and the valve body are sealed by packing and sealing ring, and the valve core is rotated by rotating the valve stem, thereby opening and closing the valve. However, the rotation friction between the valve stem and the sealing ring and the packing easily causes wear of the sealing ring and the packing, thereby accelerating the damage of the valve and reducing the service life of the valve. UTILITY MODEL CONTENTS

[0005] In view of the problems existing in the prior art, the utility model is proposed.

[0006] Therefore, the utility model aims to provide a high sealing property valve, which solves the problem of the prior art that the valve stem and the valve body are sealed by packing and sealing ring, and the valve core is rotated by rotating the valve stem, thereby opening and closing the valve. However, the rotation friction between the valve stem and the sealing ring and the packing easily causes wear of the sealing ring and the packing, thereby accelerating the damage of the valve and reducing the service life of the valve.

[0007] To solve the above technical problems, according to one aspect of the utility model, the utility model provides the following technical scheme:

[0008] The utility model provides a kind of high sealing valve, including valve body, the first interface and the second interface are separately provided with in the both ends of valve body, first through hole and second through hole are provided in the cavity of valve body, and the first through hole and second through hole are provided with blocking piece, the top of blocking piece is connected with lifting mechanism, and the first through hole and second through hole are closed or opened by lifting mechanism driving blocking piece to lift.

[0009] As a preferred scheme of the high sealing valve of the utility model, wherein: the first interface cavity forms a first flow channel, and the second interface cavity forms a second flow channel.

[0010] As a preferred scheme of the high sealing valve of the utility model, wherein: the blocking piece is composed of a metal block and a sealing sleeve, the sealing sleeve is sleeved on the metal block, and the metal block and the sealing sleeve are bonded by glue.

[0011] As a preferred scheme of the high sealing valve of the utility model, wherein: a valve cover is threadedly connected to the top end of the valve body, and the metal block is made of stainless steel.

[0012] As a preferred scheme of the high sealing valve of the utility model, wherein: the lifting mechanism includes a U-shaped support rod mounted on the valve body, a detachable electric push rod is mounted on the U-shaped support rod, and the bottom end of the electric push rod is detachably connected to the metal block.

[0013] As a preferred scheme of the high sealing valve of the utility model, wherein: a first support connecting seat is welded to the U-shaped support rod, the top end of the electric push rod is inserted into the first support connecting seat, and internal thread holes are formed in the corresponding positions of the first support connecting seat and the electric push rod, and the first support connecting seat and the electric push rod are fixed by bolts.

[0014] A second support connecting seat is welded to the metal block, the electric push rod is inserted into the inner wall of the second support connecting seat, and the electric push rod and the second support connecting seat are fixed by bolts.

[0015] As a preferred scheme of the high sealing valve of the utility model, wherein: a third support connecting seat is welded to the valve cover, the bottom end of the U-shaped support rod is inserted into the third support connecting seat, and the third support connecting seat and the U-shaped support rod are fixed by bolts.

[0016] As a preferred scheme of the high sealing valve of the utility model, wherein: a filler is arranged in the cavity of the valve cover, and a through hole is formed in the filler for the electric push rod to pass through.

[0017] Compared with the prior art:

[0018] The metal block and the sealing sleeve are driven to ascend and descend together by the electric push rod, the opening and closing of the valve are realized, the sealing sleeve moves up and down without rotating friction with any component, the abrasion of the sealing sleeve is reduced, better sealing effect can be achieved, and the service life of the valve is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 A structure schematic view is provided for the utility model;

[0020] Figure 2 A structure schematic view is provided for the utility model; Figure 1 A sectional view is provided for the utility model;

[0021] Figure 3 A bottom view of the metal block and the sealing sleeve is provided for the utility model;

[0022] Figure 4 A structure schematic view is provided for the utility model; Figure 2 A schematic view is provided for the utility model after the electric push rod is retracted to drive the metal block and the sealing sleeve.

[0023] In the drawing: the valve body 1, the valve cover 2, the third support connecting seat 3, the guide sleeve 4, the electric push rod 5, the U-shaped support rod 6, the first support connecting seat 7, the filler 8, the through hole 81, the second support connecting seat 9, the metal block 10, the sealing sleeve 101, the second interface 11, the second flow channel 111, the first interface 12, the first flow channel 121, the first through hole 13, and the second through hole 14. DETAILED DESCRIPTION

[0024] To make the purpose, technical scheme and advantages of the utility model clearer, the embodiments of the utility model will be further described in detail below with reference to the drawings.

[0025] The utility model provides a kind of high sealing valve, please refer to Figures 1-4 , including valve body 1, the first interface 12 and the second interface 11 are separately provided at the both ends of the valve body 1, the first through hole 13 and the second through hole 14 are provided in the cavity of the valve body 1, the first through hole 13 and the second through hole 14 are provided with plugging element, the top end of plugging element is connected with lifting mechanism, plugging element is driven to lift by lifting mechanism to block or open the first through hole 13 and the second through hole 14, i.e. the inner wall of valve body 1 is elastically clamped sealing sleeve 101.

[0026] The first flow channel 121 is formed in the cavity of the first interface 12, and the second flow channel 111 is formed in the cavity of the second interface 11.

[0027] The sealing member is composed of a metal block 10 and a sealing sleeve 101, the sealing sleeve 101 is sleeved on the metal block 10, and the metal block 10 and the sealing sleeve 101 are bonded by glue.

[0028] The top end of the valve body 1 is threadedly connected with a valve cover 2, a packing 8 is arranged in the inner cavity of the valve cover 2, a through hole 81 is formed in the packing 8 and used for allowing the electric push rod 5 to pass through, the metal block 10 is made of stainless steel; a guide sleeve 4 is fixedly installed at the top end of the valve cover 2, and the guide sleeve 4 is slidably connected with the electric push rod 5.

[0029] The lifting mechanism includes a U-shaped support rod 6 installed on the valve body 1, specifically, a third support connecting seat 3 is welded on the valve cover 2, the bottom end of the U-shaped support rod 6 is inserted into the third support connecting seat 3, and the third support connecting seat 3 and the U-shaped support rod 6 are fixed by bolts, the electric push rod 5 is detachably installed on the U-shaped support rod 6, specifically, a first support connecting seat 7 is welded on the U-shaped support rod 6, the top end of the electric push rod 5 is inserted into the first support connecting seat 7, and the first support connecting seat 7 and the electric push rod 5 are provided with internally threaded holes at corresponding positions, the first support connecting seat 7 and the electric push rod 5 are fixed by bolts, and the bottom end of the electric push rod 5 is detachably connected with the metal block 10, specifically, a second support connecting seat 9 is welded on the metal block 10, the electric push rod 5 is inserted into the inner wall of the second support connecting seat 9, and the electric push rod 5 and the second support connecting seat 9 are fixed by bolts; the sealing sleeve is lifted and lowered under the driving of the lifting mechanism without rotating friction with any component, so that the wear of the sealing sleeve is reduced, a better sealing effect can be achieved, and the service life of the valve is improved.

[0030] In specific use, when the valve needs to be opened, the electric push rod 5 is retracted to drive the metal block 10 and the sealing sleeve 101 to rise together, so as to release the blockage of the first through hole 13 and the second through hole 14, thereby opening the valve.

[0031] When the valve is closed, the electric push rod 5 is elongated to drive the metal block 10 and the sealing sleeve 101 to descend together, and the sealing sleeve 101 is blocked between the first through hole 13 and the second through hole 14, thereby closing the valve.

[0032] Although the utility model has been described above with reference to the embodiments, various modifications can be made thereto, and equivalent replacements can be made to the components thereof, without departing from the scope of the utility model. In particular, as long as there is no structural conflict, each feature in the embodiments disclosed by the utility model can be combined with each other in any manner, and the combinations are not exhaustively described in the specification merely for the purpose of omitting the length and saving the resources. Therefore, the utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A high sealing valve, comprising a valve body (1), the valve body (1) having a first interface (12) and a second interface (11) at two ends respectively, the valve body (1) having a first through hole (13) and a second through hole (14) in the inner cavity, and a blocking piece being arranged between the first through hole (13) and the second through hole (14), characterized in that: The top end of the blocking piece is connected with a lifting mechanism, and the blocking piece is driven to lift by the lifting mechanism to block or open the first through hole (13) and the second through hole (14). ​ 2. A valve according to claim 1, wherein The inner cavity of the first interface (12) forms a first flow channel (121), and the inner cavity of the second interface (11) forms a second flow channel (111).

3. The valve of claim 1, wherein, The blocking piece is composed of a metal block (10) and a sealing sleeve (101), the sealing sleeve (101) is sleeved on the metal block (10), and the metal block (10) and the sealing sleeve (101) are bonded by glue.

4. A valve according to claim 3, wherein The top end of the valve body (1) is threadedly connected with a valve cover (2), and the metal block (10) is made of stainless steel.

5. A high containment valve according to claim 4, wherein, The lifting mechanism comprises a U-shaped support rod (6) mounted on the valve body (1), a detachable electric push rod (5) is mounted on the U-shaped support rod (6), and the bottom end of the electric push rod (5) is detachably connected with the metal block (10).

6. A high containment valve according to claim 5, wherein, A first support connecting seat (7) is welded on the U-shaped support rod (6), the top end of the electric push rod (5) is inserted into the first support connecting seat (7), and the first support connecting seat (7) and the electric push rod (5) are both provided with an inner threaded hole at the corresponding positions, and the first support connecting seat (7) and the electric push rod (5) are fixed by bolts. A second support connecting seat (9) is welded on the metal block (10), the electric push rod (5) is inserted into the inner wall of the second support connecting seat (9), and the electric push rod (5) and the second support connecting seat (9) are fixed by bolts.

7. A high containment valve according to claim 6, wherein, A third support connecting seat (3) is welded on the valve cover (2), the bottom end of the U-shaped support rod (6) is inserted into the third support connecting seat (3), and the third support connecting seat (3) and the U-shaped support rod (6) are fixed by bolts.

8. A high containment valve according to claim 7, wherein, A filler (8) is arranged in the inner cavity of the valve cover (2), and a through hole (81) is formed in the filler (8) for the electric push rod (5) to pass through.

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