Fluorine-lined butterfly valve with butterfly plate convenient to disassemble

Abstract

The fluorine-lined butterfly valve comprises a fluorine-lined valve body, the upper portion of the fluorine-lined valve body is provided with a butterfly valve and butterfly plate switching mechanism, the front side and the rear side of the fluorine-lined valve body are provided with butterfly valve connecting flanges, the center of the fluorine-lined valve body is provided with a butterfly plate body, the butterfly plate body is provided with a quick-release connecting mechanism, and the quick-release connecting mechanism is connected with the butterfly plate body. An embedded quick-release locking telescopic air rod is arranged in the embedded quick-release locking air cylinder, a quick-release linkage shaft is arranged on the lower portion of the embedded quick-release locking air cylinder, quick disassembly and assembly of the butterfly plate are achieved through the embedded quick-release locking air cylinder, and the maintenance difficulty and the time cost are reduced. The problem that a butterfly plate of a traditional butterfly valve is difficult to disassemble is solved. The valve shaft sleeve reduces abrasion of the valve shaft and prolongs service life. The fluorine-lined valve body is corrosion-resistant and is suitable for severe environments. The butterfly valve has the advantages of being convenient to disassemble and resistant to corrosion.

Description

TECHNICAL FIELD

[0001] The utility model relates to butterfly valve technical field, specifically, relate to a fluorine lining butterfly valve convenient to dismount butterfly plate. BACKGROUND

[0002] As a common flow control equipment, butterfly valves are widely used in many industrial fields such as chemical industry, petroleum, food, pharmaceutical and so on, for regulating and cutting off the flow of fluid in the pipeline. Although the traditional butterfly valve meets the needs of industrial production to some extent in the long-term use process, with the continuous development of industrial technology and the improvement of production efficiency and equipment maintenance requirements.

[0003] The utility model discloses a butterfly valve of Chinese utility model patent application number: CN201720592541.7, including the hollow valve body in the inside, the valve shaft that vertically penetrates the valve body and the valve plate that sets up in the valve shaft outside, the valve plate is driven under the valve shaft and realizes the opening and closing action with the valve body, the inside surface of the valve body is equipped with the ceramic washer that sets along the valve circumference direction, the outer circumference side of the valve plate is equipped with the ceramic sealing plate that sets along the valve circumference direction, the ceramic sealing plate is equipped with the recess that sets along the ceramic sealing plate circumference direction, the recess is equipped with the washer, double -layer sealing effect.

[0004] But the existing butterfly valve has some deficiencies in the process of using still needs improvement: the connection mode between the traditional butterfly valve butterfly plate and the valve body is usually more complex, adopts bolt fastening or welding and so on. When carrying out maintenance, cleaning or replacing butterfly plate, a large amount of professional tools needs to be used, and a lot of time and manpower is spent in dismounting operation. For example, when dismounting bolt, it needs to be loosened one by one, and in some narrow installation environment, the operation is more difficult, which not only increases the maintenance cost, but also causes the pipeline system to stop for a long time, affects the continuity and efficiency of production.

[0005] Due to the difficulty in dismounting the butterfly plate, the maintenance process is tedious, and the professional skill of the maintenance personnel is required. Moreover, in the dismounting and installation process, the valve parts are easily damaged due to improper operation, further increasing the maintenance cost. In addition, some parts of the traditional butterfly valve are prone to wear and corrosion after long-term use, but due to the limitation of structural design, some parts are difficult to replace individually, and the valve is often replaced as a whole, causing waste of resources and increase of cost.

[0006] In summary, the traditional butterfly valve has many deficiencies in the dismounting and maintenance cost of butterfly plate, therefore, the existing technology is improved, and a fluorine lining butterfly valve convenient to dismount butterfly plate is proposed. UTILITY MODEL CONTENTS

[0007] The utility model discloses a fluorine lining butterfly valve convenient to detach butterfly plate, including fluorine lining valve body, the upper portion of fluorine lining valve body is provided with butterfly valve butterfly plate switch mechanism, the front and back both sides of fluorine lining valve body are provided with butterfly valve connecting flange, the central position of fluorine lining valve body is provided with butterfly plate body, be provided with quick detachable connecting mechanism on butterfly plate body.

[0008] As the preferred technical scheme of the utility model, the quick detachable connecting mechanism is embedded with a quick detachable locking air cylinder, a quick detachable locking telescopic air rod, a quick detachable linkage shaft, a quick detachable unlocking fork, a quick detachable ball seat and a butterfly plate quick detachable connecting seat.

[0009] As the preferred technical scheme of the utility model, the quick detachable locking air cylinder is internally provided with the quick detachable locking telescopic air rod, the lower portion of the quick detachable locking air cylinder is provided with the quick detachable linkage shaft, the quick detachable linkage shaft is provided with the quick detachable unlocking fork, the quick detachable linkage shaft passes through the butterfly plate body and is connected with the quick detachable connecting ball at the bottom, and the quick detachable connecting ball is matched with the butterfly plate quick detachable connecting ball seat.

[0010] As the preferred technical scheme of the utility model, the butterfly plate quick detachable connecting ball seat is arranged at the middle position of the bottom of the fluorine lining valve body.

[0011] As the preferred technical scheme of the utility model, the quick detachable locking air cylinder is mounted in the locking air cylinder groove, and the locking air cylinder cap is arranged at the connecting position of the quick detachable locking air cylinder and the quick detachable locking telescopic air rod.

[0012] As the preferred technical scheme of the utility model, the butterfly valve butterfly plate switch mechanism comprises a butterfly valve butterfly plate switch shell, a round handle, a rotating shaft, a worm and a worm wheel.

[0013] As the preferred technical scheme of the utility model, the side of the butterfly valve butterfly plate switch shell is provided with the round handle, the round handle is connected with the rotating shaft, the rotating shaft is connected with the worm, and the worm is matched with the worm wheel.

[0014] As the preferred technical scheme of the utility model, the worm wheel is connected with the valve shaft fixed connection square valve shaft, and the valve shaft fixed connection square valve shaft is connected with the butterfly plate body.

[0015] As the preferred technical scheme of the utility model, the outer surface of the valve shaft fixed connection square valve shaft is provided with a valve shaft sleeve.

[0016] As the preferred technical scheme of the utility model, the upper portion of the fluorine lining valve body is provided with valve body lifting lugs on both sides.

[0017] Compared with the prior art, the utility model discloses the design of quick detachable connecting mechanism greatly simplifies the dismounting and installation process of the butterfly plate.

[0018] For maintenance personnel, the dismounting and installation of the butterfly plate can be completed without using a large number of professional tools and complex operation processes.

[0019] The butterfly valve butterfly plate switch mechanism adopts worm and gear transmission, has the characteristics of stable transmission and large torque.

[0020] The valve body lifting lug is arranged on the upper two sides of the fluorine-lined valve body, providing convenience for the carrying and installation of the valve.

[0021] The use of the fluorine-lined valve body makes the valve have good corrosion resistance. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The structure schematic view provided by the utility model is provided.

[0023] Figure 2 The quick detachable connecting mechanism local structure schematic view provided by the utility model is provided.

[0024] Figure 3 The front view structure schematic view provided by the utility model is provided.

[0025] Figure 4 The butterfly plate quick detachable connecting ball seat structure schematic view provided by the utility model is provided.

[0026] Figure 5 The utility model provides a butterfly valve butterfly plate switch mechanism structure schematic diagram.

[0027] Indicated in the drawing:

[0028] 1, fluorine lined valve body;2, butterfly valve butterfly plate switch mechanism;201, butterfly valve butterfly plate switch casing;202, round handle;203, rotating shaft;204, worm;205, worm wheel;3, butterfly valve connecting flange;4, butterfly plate body;5, quick release type connecting mechanism;501, embedded quick release locking air cylinder;5011, locking air cylinder groove;5012, locking air cylinder cap;502, embedded quick release locking telescopic air rod;503, quick release linkage shaft;504, quick release unlocking yoke;505, quick release connecting ball;506, butterfly plate quick release connecting ball seat;6, square valve shaft fixedly connected with valve shaft;601, valve shaft sleeve;7, valve body lifting lug. DETAILED DESCRIPTION

[0029] In order to make the utility model embodiment purpose, technical scheme and advantage more clearly, below, to the utility model embodiment in the technical scheme, clear, complete description will be conducted. Obviously, the described embodiment is a part of the utility model, rather than all the embodiments.

[0030] Therefore, the following detailed description of the embodiments of the utility model is not intended to limit the scope of the claimed utility model, but only represents some embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of the utility model protection, it should be noted that, in the case of no conflict, the embodiments in the utility model and the features and technical solutions in the embodiments can be combined with each other, it should be noted that: similar signs and letters in the following drawings represent similar items, therefore, once an item is defined in a drawing, it does not need to be further defined and explained in subsequent drawings.

[0031] Embodiment 1: a fluorine lined butterfly valve convenient to dismount butterfly plate, including fluorine lined valve body 1, the upper part of fluorine lined valve body 1 is provided with butterfly valve butterfly plate switch mechanism 2, the front and rear sides of fluorine lined valve body 1 are provided with butterfly valve connecting flange 3, the central part of fluorine lined valve body 1 is provided with butterfly plate body 4, and butterfly plate body 4 is provided with quick release type connecting mechanism 5. Quick release type connecting mechanism 5 includes embedded quick release locking air cylinder 501, embedded quick release locking telescopic air rod 502, quick release linkage shaft 503, quick release unlocking yoke 504, quick release connecting ball 505 and butterfly plate quick release connecting ball seat 506.

[0032] The embedded quick-release locking air cylinder 501 is provided with an embedded quick-release locking telescopic air rod 502. The lower part of the embedded quick-release locking air cylinder 501 is provided with a quick-release linkage shaft 503. The quick-release linkage shaft 503 is provided with a quick-release unlocking yoke 504. The quick-release linkage shaft 503 passes through the butterfly plate body 4 and is connected with a quick-release connecting ball 505 at the bottom. The quick-release connecting ball 505 is matched with a butterfly valve quick-release connecting ball seat 506. The butterfly valve quick-release connecting ball seat 506 is arranged at the middle position of the bottom of the fluorine-lined valve body 1. The embedded quick-release locking air cylinder 501 is installed in a locking air cylinder groove 5011. The connection between the embedded quick-release locking air cylinder 501 and the embedded quick-release locking telescopic air rod 502 is provided with a locking air cylinder cap 5012. The butterfly valve butterfly plate switch mechanism 2 includes a butterfly valve butterfly plate switch shell 201, a round handle 202, a rotating shaft 203, a worm 204, and a worm gear 205. The side of the butterfly valve butterfly plate switch shell 201 is provided with the round handle 202. The round handle 202 is connected with the rotating shaft 203. The rotating shaft 203 is connected with the worm 204. The worm 204 is matched with the worm gear 205. The worm gear 205 is connected with a valve shaft fixed connection square valve shaft 6. The valve shaft fixed connection square valve shaft 6 is connected with the butterfly plate body 4. The outer surface of the valve shaft fixed connection square valve shaft 6 is provided with a valve shaft sleeve 601. The upper part of the fluorine-lined valve body 1 is provided with a valve body lug 7 on both sides.

[0033] The working principle of the fluorine-lined butterfly valve facilitating the disassembly of the butterfly plate is as follows: the butterfly valve butterfly plate switch mechanism 2 is mainly used for controlling the opening and closing of the butterfly plate body 4. The operator manually rotates the round handle 202 at the side of the butterfly valve butterfly plate switch shell 201. The round handle 202 is fixedly connected with the rotating shaft 203. The rotation of the round handle 202 drives the rotating shaft 203 to rotate synchronously.

[0034] The rotating shaft 203 is connected with the worm 204. The rotation of the rotating shaft 203 is transmitted to the worm 204, so that the worm 204 starts to rotate. The worm 204 and the worm gear 205 are matched with each other. According to the worm gear transmission principle, the rotation of the worm 204 drives the worm gear 205 to rotate.

[0035] The worm gear 205 is connected with the valve shaft fixed connection square valve shaft 6. The rotation of the worm gear 205 drives the valve shaft fixed connection square valve shaft 6 to rotate. Since the valve shaft fixed connection square valve shaft 6 is connected with the butterfly plate body 4, the rotation of the butterfly plate body 4 in the fluorine-lined valve body 1 is realized, so as to achieve the purpose of controlling the opening and closing of the valve. The valve shaft sleeve 601 is sleeved on the outer surface of the valve shaft fixed connection square valve shaft 6, which plays a protective and friction-reducing role and ensures smooth rotation of the valve shaft.

[0036] The quick-release connection mechanism 5 is used to achieve quick disassembly of the butterfly plate body 4: normal working state: the embedded quick-release locking telescopic air rod 502 in the embedded quick-release locking air cylinder 501 is in the extended state, at this time, the quick-release connection ball 505 is tightly fitted in the butterfly plate quick-release connection ball seat 506, the butterfly plate body 4 is stably fixed in the fluorine-lined valve body 1, and the valve body 1 is stably fixed in the fluorine-lined valve body 1, which ensures that the butterfly plate body 4 will not be loose during normal operation of the valve. The embedded quick-release locking air cylinder 501 is installed in the locking air cylinder groove 5011, and the locking air cylinder cap 5012 ensures the sealing and stability of the connection between the embedded quick-release locking air cylinder 501 and the embedded quick-release locking telescopic air rod 502.

[0037] Disassembly state: when the butterfly plate body 4 needs to be disassembled, the embedded quick-release locking telescopic air rod 502 is retracted inward. The retraction of the embedded quick-release locking telescopic air rod 502 drives the quick-release linkage shaft 503 to move upward, and the quick-release unlocking yoke 504 installed on the quick-release linkage shaft 503 also moves upward. The quick-release connection ball 505 connected at the bottom of the quick-release linkage shaft 503 is separated from the butterfly plate quick-release connection ball seat 506 as the quick-release linkage shaft 503 moves upward, at this time, the connection between the butterfly plate body 4 and the bottom of the fluorine-lined valve body 1 is released, and the operator can conveniently take out the butterfly plate body 4 from the fluorine-lined valve body 1 for maintenance or replacement. The butterfly valve connection flange 3 is arranged on the front and rear sides of the fluorine-lined valve body 1, and is used to connect the fluorine-lined butterfly valve with the pipeline system to realize the transportation of fluid in the pipeline. The valve body lifting lug 7 is arranged on the upper sides of the fluorine-lined valve body 1, and is used to facilitate the use of hoisting equipment during the installation, disassembly or transportation of the fluorine-lined butterfly valve, thereby improving the work efficiency and safety.

[0038] The working process of the fluorine-lined butterfly valve facilitating the disassembly of the butterfly plate: the valve is opened, the operator stands beside the butterfly valve butterfly plate opening and closing mechanism 2, and manually holds the round handle 202 on the side of the butterfly valve butterfly plate opening and closing housing 201.

[0039] The round handle 202 is rotated in the counterclockwise direction, since the round handle 202 is fixedly connected with the rotating shaft 203, the rotation of the round handle 202 drives the rotating shaft 203 to rotate counterclockwise synchronously. The rotation of the rotating shaft 203 is transmitted to the worm 204 connected therewith, so that the worm 204 starts to rotate counterclockwise.

[0040] The worm 204 and the worm gear 205 are meshed with each other, according to the worm and gear transmission principle, the rotation of the worm 204 drives the worm gear 205 to rotate clockwise. The worm gear 205 is fixedly connected with the square valve shaft 6, and the clockwise rotation of the worm gear 205 drives the square valve shaft 6 to rotate clockwise.

[0041] The square valve shaft 6 is connected with the butterfly plate body 4, so that the butterfly plate body 4 rotates clockwise in the fluorine-lined valve body 1, gradually opens the valve, and allows the fluid to be transported through the fluorine-lined valve body 1. The valve shaft sleeve 601 ensures that the valve shaft rotates more smoothly during rotation.

[0042] Close the valve, the operator manually holds the round handle 202, rotates in clockwise direction. Round handle 202 drives the rotating shaft 203 clockwise rotation, in turn makes the worm 204 clockwise rotation. Worm 204 drives the worm gear 205 counterclockwise rotation, worm gear 205 drives the valve shaft fixed connection square valve shaft 6 counterclockwise rotation. Valve shaft fixed connection square valve shaft 6 drives the butterfly plate body 4 in fluorine valve body 1 counterclockwise rotation, gradually close the valve, prevent fluid continue to pass through.

[0043] Butterfly plate disassembly process: first, ensure that the valve is in the closed state, stop fluid delivery, and properly depressurize and empty the pipeline system to ensure safety during disassembly. Control the embedded quick-release locking cylinder 501 so that the embedded quick-release locking telescopic air rod 502 inside it retracts inward.

[0044] The retraction of the embedded quick-release locking telescopic air rod 502 drives the quick-release linkage shaft 503 to move upward, and the quick-release unlocking yoke 504 installed on the quick-release linkage shaft 503 also moves upward. The quick-release connection ball 505 connected at the bottom of the quick-release linkage shaft 503 is separated from the butterfly plate quick-release connection ball seat 506 as the quick-release linkage shaft 503 moves upward, disconnecting the butterfly plate body 4 from the bottom of the fluorine valve body 1. Use hoisting equipment to properly fix and support the fluorine valve body 1 through the valve body lifting lug 7, then carefully remove the butterfly plate body 4 from the fluorine valve body 1 upward.

[0045] Butterfly plate installation process: carefully place the butterfly plate body 4 to be installed into the fluorine valve body 1, so that the valve shaft fixed connection square valve shaft 6 is accurately aligned with the corresponding installation position. Slowly lower the butterfly plate body 4 so that the quick-release connection ball 505 is aligned with the butterfly plate quick-release connection ball seat 506. Control the embedded quick-release locking cylinder 501 so that the embedded quick-release locking telescopic air rod 502 extends outward. The extension of the embedded quick-release locking telescopic air rod 502 drives the quick-release linkage shaft 503 to move downward, and the quick-release connection ball 505 moves downward and tightly fits into the butterfly plate quick-release connection ball seat 506, securely fixing the butterfly plate body 4 in the fluorine valve body 1. Check if the installation position of the butterfly plate body 4 is correct, and if it is confirmed to be correct, restore the pipeline system, such as re-pressurizing, liquid filling, etc., then the valve can be used normally.

[0046] The above embodiments are only used to illustrate the technical solutions described in the present application and are not limited to the technical solutions described in the present application. Although the present application has been described in detail with reference to the above embodiments, the present application is not limited to the above specific embodiments, therefore any modification or replacement of the present application; all technical solutions and improvements within the spirit and scope of the present application are covered by the claims of the present application.

Claims

1. A fluorine-lined butterfly valve facilitating dismounting of a butterfly plate, comprising a fluorine-lined valve body (1), characterized in that, The upper part of the fluorine-lined valve body (1) is provided with a butterfly valve butterfly plate switching mechanism (2), the front and back sides of the fluorine-lined valve body (1) are provided with butterfly valve connecting flanges (3), and the central part of the fluorine-lined valve body (1) is provided with a butterfly plate body (4).

2. The fluoropolymer lined butterfly valve according to claim 1, wherein, The quick-release connecting mechanism (5) comprises an embedded quick-release locking air cylinder (501), an embedded quick-release locking telescopic air rod (502), a quick-release linkage shaft (503), a quick-release unlocking yoke (504), a quick-release connecting ball (505) and a butterfly plate quick-release connecting ball seat (506).

3. The fluoropolymer lined butterfly valve of claim 2, wherein, The embedded quick-release locking telescopic air rod (502) is arranged in the embedded quick-release locking air cylinder (501), the lower part of the embedded quick-release locking air cylinder (501) is provided with the quick-release linkage shaft (503), the quick-release linkage shaft (503) is provided with the quick-release unlocking yoke (504), the quick-release linkage shaft (503) penetrates through the butterfly plate body (4) and is connected with the quick-release connecting ball (505) at the bottom, and the quick-release connecting ball (505) is matched with the butterfly plate quick-release connecting ball seat (506).

4. The fluoropolymer lined butterfly valve of claim 3, wherein, The butterfly plate quick-release connecting ball seat (506) is arranged at the middle position of the bottom of the fluorine-lined valve body (1).

5. The fluoropolymer lined butterfly valve of claim 4, wherein, The embedded quick-release locking air cylinder (501) is arranged in a locking air cylinder groove (5011), and a locking air cylinder cap (5012) is arranged at the connection position of the embedded quick-release locking air cylinder (501) and the embedded quick-release locking telescopic air rod (502).

6. The fluoropolymer lined butterfly valve of claim 5, wherein, The butterfly valve butterfly plate switching mechanism (2) comprises a butterfly valve butterfly plate switching shell (201), a round handle (202), a rotating shaft (203), a worm (204) and a worm wheel (205).

7. The fluoropolymer lined butterfly valve of easy dismounting of the disc according to claim 6, characterized in that, The side of the butterfly valve butterfly plate switching shell (201) is provided with the round handle (202), the round handle (202) is connected with the rotating shaft (203), the rotating shaft (203) is connected with the worm (204), and the worm (204) is matched with the worm wheel (205).

8. The fluoropolymer lined butterfly valve of claim 7, wherein, The worm wheel (205) is connected with a valve shaft fixed connection square valve shaft (6), the valve shaft fixed connection square valve shaft (6) is connected with the butterfly plate body (4).

9. The fluoropolymer lined butterfly valve of easy dismounting of the disc according to claim 8, characterized in that, The outer surface of the valve shaft fixed connection square valve shaft (6) is provided with a valve shaft sleeve (601).

10. The fluoropolymer lined butterfly valve of claim 9, wherein, The upper part of the fluorine-lined valve body (1) is provided with a valve body lifting lug (7).

Images