Butterfly valve capable of being prevented from being stuck

Abstract

The utility model discloses a butterfly valve capable of preventing locking, which belongs to the field of butterfly valves, and comprises a valve body, the top of the valve body is fixedly connected with an anti-locking mechanism, the top of the anti-locking mechanism is provided with a mounting mechanism, two groups of fixing rods are pressed, so that the fixing rods are stressed to slide outside a limiting rod, and the anti-locking mechanism is arranged at the top of the anti-locking mechanism. The two fixing rods compress the arranged springs and enter the mounting blocks, the mounting blocks arranged at the tops of the connecting blocks are connected with the mounting grooves formed in the two sides of the mounting plates in an inserted mode through the fixing plates, and the compressed fixing rods in the mounting blocks are subjected to the bounce force of the springs, so that the fixing rods are stressed to be connected with the fixing holes in an inserted mode; and different from traditional bolt fixing, the fixing device is more convenient to operate and easy to use.

Description

Technical Field

[0001] The utility model relates to the field of butterfly valves, in particular to a butterfly valve which can prevent being stuck. Background Art

[0002] In factory production, butterfly valves are common components in pipeline connections. Since the butterfly valves are in a fixed state for a long time, the internal connecting parts will solidify due to rust or corrosion over time. When the butterfly valve changes the open or closed state again, the handwheel is difficult to turn, making it difficult to rotate the butterfly valve. For this reason, a butterfly valve that can prevent sticking is proposed.

[0003] The Chinese patent application number 201821611875.5 discloses a butterfly valve that prevents jamming, including a valve body, a butterfly valve plate installed in the inner cavity of the valve body to control the flow of liquid, a handwheel connected to the butterfly valve plate for rotation through a core shaft, and a flange plate sleeved on the core shaft at the lower end of the positioning handwheel; it also includes an anti-jamming mechanism that can prevent the butterfly valve from being stuck due to long-term solidification; this butterfly valve that prevents jamming has a simple structure. By adding an anti-jamming mechanism to the butterfly valve of the prior art, the internal stress is eliminated by rotating the bolt with little effort, thereby realizing the function of preventing the butterfly valve from being stuck due to solidification. The combined structure of the movable plate, rotating part, bolt and fixed plate that can be detached and returned to lock is adopted, which not only saves effort but also effectively prevents the internal components of the butterfly valve from being stuck and difficult to rotate due to rust, corrosion and impurities. The above scheme has the following defects: the existing butterfly valve is fixed by bolts to avoid the phenomenon of jamming inside the butterfly valve, but the disassembly and installation of the bolts require the use of specific tools, the operation is too cumbersome, and there will be problems of inconvenience in use.

[0004] Therefore, a butterfly valve capable of preventing jamming is provided to solve the above problems. Utility Model Content

[0005] (1) Technical problems solved

[0006] The utility model provides a butterfly valve capable of preventing jamming, aiming to solve the problem in the background art that the existing pipeline fixing mechanism cannot provide accurate clamping for pipelines of different sizes.

[0007] (2) Technical solution

[0008] To achieve the above object, the present invention provides the following technical solution: a butterfly valve capable of preventing jamming, comprising a valve body, an anti-jamming mechanism fixedly connected to the top of the valve body, and a mounting mechanism provided on the top of the anti-jamming mechanism;

[0009] Preferably, in order to solve the problem that the existing butterfly valve is fixed by bolts to avoid the problem of jamming inside the butterfly valve, but the disassembly and installation of the bolts require the use of specific tools, the operation is too cumbersome, and it will be inconvenient to use, the anti-jamming mechanism includes a fixing plate fixedly connected to the top of the valve body, the two sides of the top of the fixing plate are fixedly connected with connecting blocks, the tops of the two groups of connecting blocks are fixedly connected with mounting blocks, and two groups of fixing rods are provided inside the two groups of mounting blocks. The provided mounting blocks and fixing rods facilitate the installation of the fixing plate and the valve body, which is different from traditional bolt fixing, is more convenient to operate and simple to use.

[0010] Preferably, in order to solve the problem of stable movement of the fixing rod, the inner sides of the mounting block are fixedly connected with limiting rods, the fixing rods are arranged on the outside of the limiting rods, and the fixing rods are slidably connected to the limiting rods. By pressing the fixing rods, the fixing rods slide outside the limiting rods, and the stability of the sliding of the fixing rods is improved by the limiting rods.

[0011] Preferably, in order to solve the problem of convenient operation of the fixing rods, the two groups of fixing rods are symmetrically arranged inside the mounting block, and a spring is fixedly connected between the two groups of fixing rods. The two groups of fixing rods are subjected to force to compress the springs arranged on the side, so that the fixing rods enter the interior of the mounting block, and the fixing rods are subjected to the rebound force of the springs, which can facilitate the restoration of the fixing rods to their original state and facilitate operation.

[0012] Preferably, in order to solve the problem of convenient installation and disassembly, the installation mechanism includes a mounting plate arranged on the top of the fixed plate, and mounting grooves are provided on both sides of the mounting plate, and fixing holes are provided on both sides of the two groups of mounting grooves. The provided mounting grooves and fixing holes can facilitate installation and disassembly, thereby facilitating use.

[0013] Preferably, in order to solve the problem of convenient installation of the mounting block and the mounting slot, the mounting slot is adapted to the mounting block, the mounting block is plugged into the mounting slot, the fixing hole is adapted to the fixing rod, the fixing rod is plugged into the fixing hole, and the mounting block is adapted to the mounting slot, so that the mounting block is plugged into the mounting slot and the fixing rod is adapted to the fixing hole, so that the fixing rod can be plugged into the fixing hole, thereby fixing the mounting block and the mounting slot for easy installation, which is convenient to use.

[0014] Preferably, in order to solve the problem of normal use of the butterfly valve, a connecting shaft is provided inside the mounting plate, and a butterfly valve plate is fixedly connected to the bottom of the connecting shaft. The butterfly valve plate is arranged inside the valve body, and the connecting shaft is rotatably connected to the mounting plate. The butterfly valve plate is driven to rotate inside the valve body by the rotation of the connecting shaft, and the opening and closing or sealing of the inside of the valve body is realized by the set butterfly valve plate, which is easy to use.

[0015] Preferably, in order to solve the problem of convenient rotation of the connecting shaft, a handle is provided on the top of the mounting plate, the top end of the connecting shaft extends to the outside of the mounting plate and is fixedly connected to the bottom of the handle by bolts, and the connecting shaft and the mounting plate are fixedly connected by flange bolts. By rotating the handle, the connecting shaft is driven to rotate inside the mounting plate, thereby facilitating operation.

[0016] Beneficial effects

[0017] The anti-jamming mechanism presses the two sets of fixing rods so that the fixing rods are forced to slide outside the limit rods. The two sets of fixing rods compress the springs and enter the interior of the mounting block. The mounting block provided on the top of the connecting block is plugged into the mounting grooves opened on both sides of the mounting plate through the fixing plate. The fixing rods compressed inside the mounting block are acted upon by the rebound force of the springs so that the fixing rods are forced to plug into the fixing holes, thereby fixing the mounting block and the mounting plate. Different from traditional bolt fixing, the operation is more convenient and simple to use.

[0018] The mounting mechanism fixes the turning handle and the connecting rotating shaft by bolts, and by rotating the turning handle, the turning handle drives the connecting rotating shaft to rotate inside the mounting plate, thereby causing the connecting rotating shaft to drive the butterfly valve plate to rotate inside the valve body. The operation is simple, fast and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the three-dimensional structure of a butterfly valve that can prevent sticking;

[0020] Figure 2 The figure is a three-dimensional dynamic structural diagram of a butterfly valve that can prevent sticking;

[0021] Figure 3 A schematic diagram of the three-dimensional structure of a butterfly valve plate of a butterfly valve that can prevent sticking;

[0022] Figure 4 The figure is a side view schematic diagram of a butterfly valve that can prevent sticking;

[0023] Figure 5 For this utility model Figure 4 Schematic diagram of the structure at point A in the middle.

[0024] In the picture:

[0025] 1. Valve body; 2. Anti-stuck mechanism; 21. Fixed plate; 22. Connecting block; 23. Mounting block; 24. Fixed rod; 25. Limit rod; 26. Spring; 3. Mounting mechanism; 31. Mounting plate; 32. Mounting slot; 33. Fixed hole; 34. Connecting shaft; 35. Butterfly valve plate; 36. Turning handle. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Example 1

[0028] This embodiment provides a butterfly valve that can prevent jamming. Figure 1-5 As shown, the butterfly valve that can prevent sticking includes a valve body 1, an anti-sticking mechanism 2 is fixedly connected to the top of the valve body 1, and a mounting mechanism 3 is provided on the top of the anti-sticking mechanism 2;

[0029] When in use, the anti-jamming mechanism 2 is provided, which is different from the traditional bolt fixing, and is more convenient to operate and simple to use. The installation mechanism 3 is provided, which can be easily installed and disassembled and is easy to use.

[0030] Specifically, the anti-seizure mechanism 2 includes a fixed plate 21 fixedly connected to the top of the valve body 1, with connecting blocks 22 fixedly connected to both sides of the top of the fixing plate 21, and mounting blocks 23 fixedly connected to the tops of the two sets of connecting blocks 22. Two sets of fixing rods 24 are provided inside the two sets of mounting blocks 23.

[0031] When in use, the fixing plate 21 and the valve body 1 are easily installed by means of the provided mounting block 23 and the fixing rod 24. Different from the traditional bolt fixing, the operation is more convenient and simple to use.

[0032] Furthermore, the inner sides of the mounting block 23 are fixedly connected to the limiting rods 25, and the fixing rods 24 are arranged outside the limiting rods 25, and the fixing rods 24 are slidably connected to the limiting rods 25;

[0033] During use, the fixing rod 24 is pressed to slide outside the limiting rod 25 , thereby improving the sliding stability of the fixing rod 24 through the limiting rod 25 .

[0034] Furthermore, two sets of fixing rods 24 are symmetrically arranged inside the mounting block 23, and a spring 26 is fixedly connected between the two sets of fixing rods 24;

[0035] When in use, the two sets of fixing rods 24 are forced to compress the springs 26 set on the side, so that the fixing rods 24 enter the interior of the mounting block 23, and the fixing rods 24 are affected by the rebound force of the springs 26, which can facilitate the fixing rods 24 to return to their original state and facilitate operation.

[0036] Example 2

[0037] Different from Example 1, Figure 1-3 As shown, the butterfly valve that can prevent sticking includes a mounting mechanism 3, which includes a mounting plate 31 arranged on the top of the fixing plate 21, and mounting grooves 32 are opened on both sides of the mounting plate 31, and fixing holes 33 are opened on both sides of the two sets of mounting grooves 32;

[0038] When in use, by providing the mounting groove 32 and the fixing hole 33, it is easy to install and disassemble, thereby facilitating use.

[0039] Specifically, the mounting groove 32 is adapted to the mounting block 23, the mounting block 23 is plugged into the mounting groove 32, the fixing hole 33 is adapted to the fixing rod 24, and the fixing rod 24 is plugged into the fixing hole 33;

[0040] When in use, the mounting block 23 is adapted to the mounting groove 32 so that the mounting block 23 is plugged into the mounting groove 32, and the fixing rod 24 is adapted to the fixing hole 33 so that the fixing rod 24 is plugged into the fixing hole 33, thereby fixing the mounting block 23 and the mounting groove 32, which is easy to use.

[0041] Furthermore, a connecting shaft 34 is sleeved inside the mounting plate 31, and a butterfly valve plate 35 is fixedly connected to the bottom of the connecting shaft 34. The butterfly valve plate 35 is arranged inside the valve body 1;

[0042] When in use, the connecting shaft 34 is rotatably connected to the mounting plate 31 , and the butterfly valve plate 35 is driven to rotate inside the valve body 1 by the rotation of the connecting shaft 34 , and the opening and closing or sealing of the valve body 1 is achieved through the provided butterfly valve plate 35 , which is easy to use.

[0043] Furthermore, a handle 36 is provided on the top of the mounting plate 31, and the top end of the connecting shaft 34 extends to the outside of the mounting plate 31 and is fixedly connected to the bottom of the handle 36 by bolts;

[0044] During use, the connecting shaft 34 is fixedly connected to the mounting plate 31 via flange bolts, and the connecting shaft 34 is driven to rotate inside the mounting plate 31 by turning the turning handle 36, thereby facilitating operation.

[0045] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A butterfly valve capable of preventing jamming, comprising a valve body (1), characterized in that: The top of the valve body (1) is fixedly connected to an anti-jamming mechanism (2), and the top of the anti-jamming mechanism (2) is provided with a mounting mechanism (3); The anti-jamming mechanism (2) comprises a fixing plate (21) fixedly connected to the top of the valve body (1), connecting blocks (22) are fixedly connected to both sides of the top of the fixing plate (21), the tops of two groups of the connecting blocks (22) are fixedly connected to mounting blocks (23), and two groups of fixing rods (24) are provided inside the two groups of the mounting blocks (23).

2. A butterfly valve capable of preventing jamming according to claim 1, characterized in that: The inner sides of the mounting block (23) are fixedly connected to the limiting rods (25), the fixing rods (24) are arranged outside the limiting rods (25), and the fixing rods (24) are slidably connected to the limiting rods (25).

3. The butterfly valve capable of preventing jamming according to claim 1, characterized in that: The two groups of fixing rods (24) are symmetrically arranged inside the mounting block (23), and a spring (26) is fixedly connected between the two groups of fixing rods (24).

4. The butterfly valve capable of preventing jamming according to claim 1, characterized in that: The mounting mechanism (3) comprises a mounting plate (31) arranged on the top of the fixing plate (21), mounting grooves (32) are provided on both sides of the mounting plate (31), and fixing holes (33) are provided on both sides of two groups of mounting grooves (32).

5. The butterfly valve capable of preventing jamming according to claim 4, characterized in that: The mounting groove (32) is matched with the mounting block (23), the mounting block (23) is plugged into the mounting groove (32), the fixing hole (33) is matched with the fixing rod (24), and the fixing rod (24) is plugged into the fixing hole (33).

6. The butterfly valve capable of preventing jamming according to claim 4, characterized in that: A connecting shaft (34) is sleeved inside the mounting plate (31), and a butterfly valve plate (35) is fixedly connected to the bottom of the connecting shaft (34), and the butterfly valve plate (35) is arranged inside the valve body (1).

7. The butterfly valve capable of preventing jamming according to claim 6, characterized in that: A turning handle (36) is provided on the top of the mounting plate (31), and the top end of the connecting shaft (34) extends to the outside of the mounting plate (31) and is fixedly connected to the bottom of the turning handle (36) by means of bolts.

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