Reinforced corrugated pipe sealing valve

Abstract

The utility model relates to the technical field of sealing valves, in particular to a reinforced corrugated pipe sealing valve which comprises a valve body, a valve clack is arranged in the valve body, a corrugated pipe is arranged on the valve clack, a valve rod is arranged on the surface of the valve clack, the corrugated pipe is sleeved on the valve rod, and a reinforcing spring is arranged between the corrugated pipe and the valve rod. A plurality of fastening screws are arranged on the surface of the upper sealing plate, and the upper end of the corrugated pipe is clamped between the upper sealing plate and the valve body; the corrugated pipe valve has the beneficial effects that when the corrugated pipe valve is used, the upper sealing plate can be detached from the surface of the valve body by rotating the fastening screw rod on the surface of the upper sealing plate, so that the interior is convenient to repair and maintain, and the reinforcing spring positioned between the corrugated pipe and the valve rod can play a role in supporting and buffering, so that the abrasion of the corrugated pipe is reduced, the overall sealing performance is improved, and the service life of the corrugated pipe is prolonged. The service life of the corrugated pipe sealing valve is prolonged, the reliability of equipment operation is improved, and the leakage problem caused by long-term compression deformation of the corrugated pipe is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sealed valve field, concretely is a kind of reinforced bellows sealed valve. BACKGROUND

[0002] Bellows sealed valve is mainly used to enhance the sealing performance of valve, prevent medium leakage, especially suitable for high temperature, high pressure or corrosive working condition, its core component bellows realizes sealing by telescopic deformation, simultaneously insulates valve stem and medium contact, effectively reduces the influence of external environment to valve stem, prolongs the service life of valve.

[0003] In prior art, traditional bellows sealed valve is mainly composed of valve body, valve flap, valve stem and sealing component, wherein valve body is used to connect pipeline and provide installation base, valve flap realizes medium flow or cut-off by cooperation with valve body, valve stem is responsible for transmitting external operating force to control the opening and closing of valve flap, and sealing component realizes dynamic sealing by its elastic deformation, effectively insulates medium leakage, and each component works cooperatively to ensure normal operation of valve.

[0004] However, the traditional bellows sealed valve will cause sealing performance to decline after long time use due to the gradual wear of bellows, increase leakage risk, and meanwhile, the fatigue deformation of bellows will also cause its elastic recovery ability to weaken, resulting in sealing failure, therefore, the utility model provides a reinforced bellows sealed valve to solve the above technical problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a reinforced bellows sealed valve to solve the problems in the above background technology.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a reinforced bellows sealed valve, comprising: valve body, valve body is provided with valve flap, valve flap is provided with bellows, valve flap surface is provided with valve stem, valve stem is sleeved with bellows, and reinforcing spring is arranged between bellows and valve stem.

[0007] Upper sealing plate is provided with a plurality of fastening screws on surface, and bellows upper end is clamped between upper sealing plate and valve body.

[0008] Preferably, two groups of mounting plates in symmetrical structure are fixedly installed at both ends of valve body, a plurality of connecting holes are formed on surface of mounting plate, a partition plate is fixedly installed on inner wall center of valve body, a valve hole is formed on surface of partition plate, and a lower sealing plate is fixedly installed on upper end of valve body.

[0009] Preferably, a plurality of holes are formed on surface of lower sealing plate in circumferential equidistant arrangement, a fastening nut is fixedly installed below hole, a sealing groove is formed on surface of lower sealing plate, and the sealing groove is in overall stepped shape.

[0010] Preferably, the upper sealing plate surface is provided with a plurality of holes, and a fastening screw is arranged in each hole, the outer thread of the fastening screw is in threaded connection with a fastening nut on the lower surface of the lower sealing plate, and a sealing pipe is fixedly installed on the upper sealing plate surface, and a valve rod is arranged in the sealing pipe.

[0011] Preferably, the valve flap is located directly above the valve hole on the surface of the partition plate, the valve flap is completely fitted with the inner wall surface of the valve hole, a valve rod is fixedly installed on the surface of the valve flap, and the valve flap surface is fixedly connected with the lower end of the corrugated pipe.

[0012] Preferably, the lower end inner wall of the corrugated pipe is fixedly connected with the lower end of the reinforcing spring, the upper end of the reinforcing spring is provided with an abutting plate, a sealing plate is fixedly installed on the upper end of the corrugated pipe, the abutting plate at the upper end of the reinforcing spring abuts against the lower surface of the sealing plate, the lower surface of the sealing plate is fitted with the surface of the sealing groove on the surface of the lower sealing plate, and the sealing plate is clamped between the upper sealing plate and the lower sealing plate.

[0013] Preferably, a packing pipe is arranged between the inner wall of the sealing pipe and the outer wall of the valve rod, a movable pipe is fixedly installed on the upper end of the sealing pipe, two groups of limiting rods in a symmetrical structure are arranged in the movable pipe, a movable hole is formed in the upper end of the valve rod, a screw nut is fixedly installed on the upper end of the valve rod, an adjusting screw is arranged in the screw nut, one end of the adjusting screw is arranged in the movable hole in the upper end of the valve rod, connecting plates are fixedly installed at both ends of the screw nut, a hole is formed in the surface of each connecting plate, a limiting rod is arranged in each hole, a hole is formed in the upper end of the movable pipe, a sealing bearing is fixedly installed on the inner wall of the hole, and the outer wall of the adjusting screw is fixedly connected with the inner ring surface of the sealing bearing.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] The reinforcing type corrugated pipe sealing valve has the advantages that: when in use, the upper sealing plate can be disassembled from the surface of the valve body by rotating the fastening screw on the surface of the upper sealing plate, so that the internal maintenance and maintenance are facilitated, the reinforcing spring between the corrugated pipe and the valve rod can play a supporting and buffering role, so that the abrasion of the corrugated pipe is reduced, the overall sealing property is improved, the service life of the corrugated pipe sealing valve is prolonged, the reliability of equipment operation is improved, and the leakage problem caused by the deformation of the corrugated pipe under long-term pressure is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the utility model;

[0017] Figure 2 It is a structural sectional view of the utility model;

[0018] Figure 3 It is a structural valve rod structure schematic view of the utility model;

[0019] Figure 4 It is an explosion schematic view of the utility model.

[0020] In the figure: 1, valve body; 2, valve flap; 3, wave tube; 4, valve rod; 5, partition; 6, reinforcing spring; 7, upper sealing plate; 8, fastening screw; 9, valve hole; 10, lower sealing plate; 11, sealing groove; 12, sealing tube; 13, sealing plate; 14, packing tube; 15, movable tube; 16, limiting rod; 17, screw nut; 18, adjusting screw; 19, sealing bearing; 20, mounting plate. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme of the utility model to carry on the clear, complete description, and the advantage is more clear and distinct, the following combining the drawings to the utility model embodiment carries on the further detailed explanation.Should understand, the specific embodiment described here is a part of the embodiment of the utility model, instead of all the embodiments, only to explain the embodiment of the utility model, and is not used to limit the embodiment of the utility model, all other embodiments obtained by the ordinary skill in the art without doing the premise of the creative labor, belong to the scope of protection of the utility model.

[0022] Embodiment one: please refer to Figures 1-4 The utility model provides a kind of technical scheme: a kind of reinforced wave tube seal valve, comprising: valve body 1, valve body 1 is provided with valve flap 2, valve flap 2 is provided with wave tube 3, valve flap 2 surface is provided with valve rod 4, valve rod 4 is sleeved with wave tube 3, wave tube 3 and valve rod 4 are provided with reinforcing spring 6 between them;

[0023] Upper sealing plate 7, the surface of upper sealing plate 7 is provided with a plurality of fastening screw 8, upper sealing plate 7 and valve body 1 are clamped with the upper end of wave tube 3 between them;

[0024] When using, fastening screw 8 on the surface of upper sealing plate 7 can be rotated, upper sealing plate 7 is disassembled from the surface of valve body 1, so that the internal maintenance and maintenance are facilitated, and reinforcing spring 6 between wave tube 3 and valve rod 4 can play the role of support and buffer, so as to reduce the abrasion of wave tube 3, increase the overall sealing property simultaneously, prolong the service life of wave tube seal valve, improve the reliability of equipment operation, avoid the leakage problem caused by the deformation of wave tube 3 under long-term pressure.

[0025] Example 2: Based on Example 1, a corrugated tube 3 is provided to extend the service life of the overall equipment. The lower inner wall of the corrugated tube 3 is fixedly connected to the lower end of the reinforcing spring 6. A stop plate is provided at the upper end of the reinforcing spring 6. A sealing plate 13 is fixedly installed at the upper end of the corrugated tube 3. The lower surface of the sealing plate 13 abuts against the stop plate at the upper end of the reinforcing spring 6. The lower surface of the sealing plate 13 fits with the sealing groove 11 surface of the lower sealing plate 10. The sealing plate 13 is completely stuck between the upper sealing plate 7 and the lower sealing plate 10. The valve disc 2 is located directly above the valve hole 9 on the surface of the partition plate 5. The valve disc 2 fits completely with the inner wall surface of the valve hole 9. A valve stem 4 is fixedly installed on the surface of the valve disc 2. The surface of the valve disc 2 is fixedly connected to the lower end of the corrugated tube 3.

[0026] To improve the overall service life, when the adjusting screw 18 is rotated, the corrugated tube 3 stretches and contracts. At this time, the reinforcing spring 6 located between the corrugated tube 3 and the valve stem 4 plays a supporting and buffering role when the corrugated tube 3 stretches and contracts, reducing fatigue damage caused by frequent stretching and contraction of the corrugated tube 3. Furthermore, the abutment plate at the upper end of the reinforcing spring 6 abuts against the lower surface of the sealing plate 13 at the upper end of the corrugated tube 3. The sealing plate 13 is located entirely within the sealing groove 11 and is placed between the upper sealing plate 7 and the lower sealing plate 10. Under the elastic force and supporting action of the reinforcing spring 6, the tightness between the sealing plate 13 and the sealing groove 11 is further enhanced, thereby improving the overall sealing performance and durability.

[0027] A packing tube 14 is provided between the inner wall of the sealing tube 12 and the outer wall of the valve stem 4. A movable tube 15 is fixedly installed at the upper end of the sealing tube 12. Two sets of symmetrical limit rods 16 are provided in the movable tube 15. A movable hole is opened at the upper end of the valve stem 4. A screw nut 17 is fixedly installed at the upper end of the valve stem 4. An adjusting screw 18 is provided in the screw nut 17. One end of the adjusting screw 18 can be placed in the movable hole at the upper end of the valve stem 4. Connecting plates are fixedly installed at both ends of the screw nut 17. A hole is opened on the surface of the connecting plate. A limit rod 16 is provided in the hole. A hole is opened at the upper end of the movable tube 15. A sealing bearing 19 is fixedly installed on the inner wall of the hole. The inner ring surface of the sealing bearing 19 is fixedly connected to the outer wall of the adjusting screw 18.

[0028] A packing tube 14 is provided between the valve stem 4 and the inner wall of the sealing tube 12, located inside the sealing tube 12. The packing tube 14 can prevent the medium from leaking to the external environment through the gap between the valve stem 4 and the sealing tube 12 when the corrugated tube 3 leaks, thereby further improving the overall sealing performance. At the same time, the packing tube 14 can provide additional sealing protection in the event of failure of the corrugated tube 3, extend the service life of the equipment and ensure the safety and stability of the system.

[0029] Example 3: Based on Example 2, an upper sealing plate 7 is provided to facilitate the disassembly of the overall equipment. The surface of the upper sealing plate 7 has several holes, and fastening screws 8 are installed in the holes. The external threads of the fastening screws 8 are threaded to the fastening nuts on the lower surface of the lower sealing plate 10. A sealing tube 12 is fixedly installed on the surface of the upper sealing plate 7, and a valve stem 4 is installed inside the sealing tube 12. The surface of the lower sealing plate 10 has several circumferentially spaced holes, and fastening nuts are fixedly installed directly below the holes. A sealing groove 11 is formed on the surface of the lower sealing plate 10, and the sealing groove 11 is stepped in shape. Two sets of symmetrical mounting plates 20 are fixedly installed at both ends of the valve body 1. The surface of the mounting plates 20 has several connecting holes. A partition 5 is fixedly installed in the center of the inner wall of the valve body 1. A valve hole 9 is formed on the surface of the partition 5. The lower sealing plate 10 is fixedly installed at the upper end of the valve body 1.

[0030] To facilitate future maintenance and disassembly, operators can rotate the fastening screw 8 on the upper sealing plate 7 to disengage it from the fastening nut on the lower surface of the lower sealing plate 10, thereby removing the upper sealing plate 7 and components such as the sealing tube 12, the movable tube 15, and the valve stem 4 from the valve body 1, which facilitates future maintenance and replacement.

[0031] In actual use, the upper sealing plate 7 can be removed from the valve body 1 by rotating the fastening screw 8 on the surface of the upper sealing plate 7, which facilitates internal maintenance and repair. The reinforcing spring 6 located between the corrugated tube 3 and the valve stem 4 can play a supporting and buffering role, thereby reducing the wear of the corrugated tube 3, increasing the overall sealing performance, extending the service life of the bellows sealing valve, improving the reliability of equipment operation, and avoiding leakage problems caused by long-term pressure deformation of the corrugated tube 3.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reinforced bellows-sealed valve, comprising: A valve body (1) is provided with a valve disc (2) inside the valve body (1) and a corrugated tube (3) is provided on the valve disc (2). The valve disc (2) is characterized in that a valve stem (4) is provided on the surface of the valve disc (2), a corrugated tube (3) is sleeved on the valve stem (4), and a reinforcing spring (6) is provided between the corrugated tube (3) and the valve stem (4). The upper sealing plate (7) has several fastening screws (8) on its surface, and the upper end of the corrugated tube (3) is clamped between the upper sealing plate (7) and the valve body (1).

2. The reinforced bellows sealing valve according to claim 1, characterized in that: The valve body (1) has two sets of symmetrical mounting plates (20) fixedly installed at both ends. The mounting plates (20) have several connection holes on their surfaces. A partition plate (5) is fixedly installed in the center of the inner wall of the valve body (1). A valve hole (9) is opened on the surface of the partition plate (5). A lower sealing plate (10) is fixedly installed at the upper end of the valve body (1).

3. The reinforced bellows sealing valve according to claim 2, characterized in that: The lower sealing plate (10) has several holes arranged equidistantly around its circumference on its surface. A fastening nut is fixedly installed directly below the holes. The lower sealing plate (10) has a sealing groove (11) on its surface. The sealing groove (11) is stepped in shape.

4. The reinforced bellows sealing valve according to claim 1, characterized in that: The upper sealing plate (7) has several holes on its surface, and fastening screws (8) are installed in the holes. The external thread of the fastening screws (8) is threadedly connected to the fastening nut on the lower surface of the lower sealing plate (10). A sealing tube (12) is fixedly installed on the surface of the upper sealing plate (7), and a valve stem (4) is installed inside the sealing tube (12).

5. A reinforced bellows sealing valve according to claim 1, characterized in that: The valve disc (2) is located directly above the valve hole (9) on the surface of the partition plate (5). The valve disc (2) is completely fitted with the inner wall surface of the valve hole (9). The valve stem (4) is fixedly installed on the surface of the valve disc (2). The surface of the valve disc (2) is fixedly connected to the lower end of the corrugated tube (3).

6. The reinforced bellows sealing valve according to claim 1, characterized in that: The lower inner wall of the corrugated tube (3) is fixedly connected to the lower end of the reinforcing spring (6). The upper end of the reinforcing spring (6) is provided with a stop plate. The upper end of the corrugated tube (3) is fixedly installed with a sealing plate (13). The lower surface of the sealing plate (13) is in contact with the stop plate at the upper end of the reinforcing spring (6). The lower surface of the sealing plate (13) is in contact with the sealing groove (11) surface of the lower sealing plate (10). The sealing plate (13) is completely stuck between the upper sealing plate (7) and the lower sealing plate (10).

7. A reinforced bellows sealing valve according to claim 4, characterized in that: A packing tube (14) is provided between the inner wall of the sealing tube (12) and the outer wall of the valve stem (4). A movable tube (15) is fixedly installed at the upper end of the sealing tube (12). Two sets of symmetrical limit rods (16) are provided inside the movable tube (15). A movable hole is opened at the upper end of the valve stem (4). A screw nut (17) is fixedly installed at the upper end of the valve stem (4). An adjusting screw (18) is provided inside the screw nut (17). One end of the adjusting screw (18) can be placed in the movable hole at the upper end of the valve stem (4). A connecting plate is fixedly installed at both ends of the screw nut (17). A hole is opened on the surface of the connecting plate. A limit rod (16) is provided in the hole. A hole is opened at the upper end of the movable tube (15). A sealing bearing (19) is fixedly installed on the inner wall of the hole. The inner ring surface of the sealing bearing (19) is fixedly connected to the outer wall of the adjusting screw (18).

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