Sealing butterfly valve convenient to maintain

Abstract

The utility model relates to a sealing butterfly valve convenient to maintain, which aims to solve the technical problems that the current dismounting operation is troublesome and the maintenance efficiency of a valve plate is influenced, and comprises a valve body, the top of the valve body is fixedly communicated with a fixed pipe, an end plate is fixed at the top of the fixed pipe, and a servo motor is fixedly arranged at the top of the end plate. A transmission shaft of the servo motor movably penetrates through the end plate and is fixedly connected with a valve rod, the valve rod is inserted into an inner cavity of the fixing pipe, a matched valve plate is installed in the inner cavity of the valve body, and a connecting assembly is fixed to one side wall of the valve plate. According to the valve plate dismounting device, the magnets generate attraction force to the magnet plates on the two sides of the inner cavity of the shell, so that the sliding block is driven to stretch the spring, the limiting block is separated from the valve rod and the rotating block, the valve plate can be directly dismounted, overall dismounting is not needed, the convenience of dismounting the valve plate is improved, and the convenience of overhaul and maintenance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of butterfly valves, in particular to a sealing butterfly valve which is beneficial to maintenance. Background Technique

[0002] A butterfly valve, also called a flap valve, is a simple-structured regulating valve. The butterfly valve that can be used for the on-off control of the medium in a low-pressure pipeline refers to a valve whose closing member is a disc and rotates around the valve shaft to achieve opening and closing.

[0003] During the long-term use of the existing butterfly valve, due to the deposition of some impurities in the inner cavity of the valve body after the fluid passes through the butterfly valve, the inner wall of the valve plate will be affected, resulting in valve damage. When the valve plate has problems, the valve needs to be overhauled and maintained, so the valve plate needs to be disassembled. Currently, when disassembling the valve plate, the entire butterfly valve often needs to be disassembled. Starting from the top of the butterfly valve, the valve stem is pulled out before the valve plate can be removed. Therefore, the disassembly operation is relatively troublesome, which affects the maintenance efficiency of the valve plate. For this reason, new technical solutions need to be designed to solve this problem. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, meet the actual needs, and provide a sealing butterfly valve that is beneficial to maintenance, so as to solve the technical problem that the current disassembly operation is relatively troublesome and affects the maintenance efficiency of the valve plate.

[0005] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: design a sealing butterfly valve that is beneficial to maintenance, including:

[0006] A valve body, a fixed pipe is fixedly communicated with the top of the valve body, an end plate is fixed on the top of the fixed pipe, a servo motor is fixedly installed on the top of the end plate, the transmission shaft of the servo motor movably penetrates through the end plate and is fixedly connected with a valve stem, and the valve stem is inserted into the inner cavity of the fixed pipe;

[0007] An adapted valve plate is installed in the inner cavity of the valve body, a connecting component is fixed on one side wall of the valve plate, a rotating block is rotatably embedded at the bottom of the inner cavity of the valve body, limiting grooves are opened at the top of the rotating block and the bottom of the valve stem, the connecting component includes a housing, a concave groove is arranged on one side wall of the housing, sliding blocks adapted to each other are arranged on both sides of the inner cavity of the housing, a push rod is connected to one side wall of the sliding block, the outer end of the push rod movably penetrates through the housing and is fixedly connected with a limiting block adapted to the limiting groove, a spring is sleeved on the outer wall of the push rod, and both ends of the spring are respectively fixedly connected with the sliding block and the inner wall of the housing, a magnet plate is fixed on the other side wall of the sliding block, and the limiting block is inserted into the corresponding limiting groove;

[0008] Utilize the magnetic poles on both sides of the magnet to generate suction force on the two magnet plates, thereby driving the sliding block to move inward, thus stretching the spring, causing the limit block to disengage from the limit groove, and then detaching the valve stem and the rotating block, so that the valve plate can be directly disassembled without overall disassembly, thereby improving the convenience of the valve plate disassembly operation and further enhancing the convenience of maintenance and repair.

[0009] Preferably, a bearing is embedded at one side wall of the sliding block corresponding to the push rod, and the end of the push rod is fixedly inserted into the inner cavity of the bearing, enabling the push rod to rotate, thus facilitating the rotation adjustment for the limit block to be correspondingly inserted into the limit groove.

[0010] Preferably, fixed ring plates are fixed on both end faces of the valve body, and a plurality of uniformly distributed holes are formed on the outer wall of the fixed ring plate. The arrangement of the fixed ring plate and the holes facilitates the connection between the valve body and the pipeline.

[0011] Preferably, the linear distance between the two ends of the housing and the inner wall of the valve body is greater than the thickness of the limit block, so that when the limit block is snapped into the limit groove, it is convenient for the limit block to perform a rotational angle operation, ensuring accurate snapping of the limit block and avoiding spatial obstacles during the rotation of the limit block, thereby further enhancing the convenience of the operation.

[0012] Preferably, the inner cavity of the fixed pipe is filled with a packing ring, and the packing ring is sleeved on the outer wall of the valve stem. The packing ring can improve the rotational stability of the valve stem and ensure the sealing effect at the same time.

[0013] Preferably, the limit block is a hexagonal block, and the limit groove is an internal hexagonal groove adapted to the limit block, so that the limit block can be accurately positioned after being inserted into the limit groove, thus avoiding relative rotation.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. By a staff member holding a magnet and inserting it into the concave groove, the magnet generates suction force on the magnet plates on both sides of the inner cavity of the housing, driving the sliding block to stretch the spring, causing the limit block to disengage from the valve stem and the rotating block, so that the valve plate can be directly disassembled without overall disassembly, thereby improving the convenience of the valve plate disassembly operation and further enhancing the convenience of maintenance and repair.

[0016] 2. There is a certain space between the two ends of the housing and the inner wall of the valve body, so that when the limit block is snapped into the limit groove, it is convenient for the limit block to perform a rotational angle operation, ensuring accurate snapping of the limit block and avoiding spatial obstacles during the rotation of the limit block, thereby further enhancing the convenience of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 Schematic cross-sectional structure diagram of the present utility model;

[0019] Figure 3 Schematic cross-sectional structure diagram of the connection component of the present utility model;

[0020] Figure 4 Schematic diagram of the limiting block structure of the present utility model.

[0021] In the figure: 1, valve body; 11, fixed pipe; 12, servo motor; 13, valve stem; 14, rotating block; 15, valve plate; 16, fixed ring plate;

[0022] 2, connection component; 21, housing; 22, sliding block; 23, push rod; 24, limiting block; 25, spring; 26, recessed groove; 27, magnet plate. Specific embodiments

[0023] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments:

[0024] Embodiment 1: A sealing butterfly valve conducive to maintenance, see Figures 1 to 4 , including:

[0025] Valve body 1, the top of the valve body 1 is fixedly communicated with a fixed pipe 11, the top of the fixed pipe 11 is fixed with an end plate, the top of the end plate is fixedly installed with a servo motor 12, the transmission shaft of the servo motor 12 movably penetrates the end plate and is fixedly connected with a valve stem 13, and the valve stem 13 is inserted into the inner cavity of the fixed pipe 11;

[0026] The inner cavity of the valve body 1 is provided with a matching valve plate 15, one side wall of the valve plate 15 is fixedly provided with a connection component 2, the bottom of the inner cavity of the valve body 1 is rotatably embedded with a rotating block 14, limiting grooves are provided at the top of the rotating block 14 and the bottom of the valve stem 13, the connection component 2 includes a housing 21, a recessed groove 26 is provided on one side wall of the housing 21, sliding blocks 22 are provided on both sides of the inner cavity of the housing 21, one side wall of the sliding block 22 is connected with a push rod 23, the outer end of the push rod 23 movably penetrates the housing 21 and is fixedly connected with a limiting block 24 adapted to the limiting groove, a spring 25 is sleeved on the outer wall of the push rod 23, and both ends of the spring 25 are fixedly connected with the sliding block 22 and the inner wall of the housing 21 respectively, a magnet plate 27 is fixedly provided on the other side wall of the sliding block 22, and the limiting block 24 is inserted into the corresponding limiting groove.

[0027] During actual use, when disassembly is required, first insert the magnet into the inner cavity of the concave groove 26, so that the magnetic poles on both sides of the magnet generate suction force on the two magnet plates 27, driving the sliding block 22 to move inward, stretching the tension spring 25, causing the limiting block 24 to disengage from the limiting groove, and then disengaging from the valve stem 13 and the rotating block 14, so that the valve plate 15 can be directly disassembled without overall disassembly, thereby improving the convenience of the operation of disassembling the valve plate 15 and further enhancing the convenience of maintenance and repair.

[0028] Furthermore, the limiting block 24 is a hexagonal block, and the limiting groove is an internal hexagonal groove adapted to the limiting block 24, so that the limiting block 24 can be accurately positioned after being inserted into the limiting groove, avoiding relative rotation.

[0029] Moreover, the inner cavity of the fixed pipe 11 is filled with a packing ring, and the packing ring is sleeved on the outer wall of the valve stem 13. The packing ring can improve the rotational stability of the valve stem 13 and ensure the sealing effect at the same time.

[0030] It is worth introducing that a bearing is embedded in one side wall of the sliding block 22 corresponding to the push rod 23, and the end of the push rod 23 is fixedly inserted into the inner cavity of the bearing, so that the push rod 23 can rotate, making it convenient to rotate and adjust the limiting block 24 to be inserted into the limiting groove.

[0031] As Figure 1 shown; fixed ring plates 16 are fixed on both end faces of the valve body 1, and a plurality of evenly distributed holes are formed in the outer wall of the fixed ring plate 16. The fixed ring plate 16 and the holes facilitate the connection between the valve body 1 and the pipeline.

[0032] As Figure 1 and 2 shown; the linear distance between both ends of the housing 21 and the inner wall of the valve body 1 is greater than the thickness of the limiting block 24, so that when the limiting block 24 is snapped into the limiting groove, it is convenient to operate the rotation angle of the limiting block 24, ensuring accurate snapping of the limiting block 24 and avoiding spatial obstacles when rotating the limiting block 24, further improving the convenience of the operation.

[0033] The implementation principle of this embodiment is as follows: in actual use, when disassembly is required, first insert the magnet into the inner cavity of the recessed groove 26, so that the two magnetic poles of the magnet generate suction on the two magnet plates 27, thereby driving the sliding block 22 to move inward, thereby stretching the spring 25, so that the limit block 24 is disengaged from the limit groove, thereby disengaging from the valve stem 13 and the rotating block 14, so that the valve plate 15 can be directly disassembled without the need for overall disassembly, thereby improving the convenience of disassembling the valve plate 15, thereby improving the convenience of inspection and maintenance, and when installation is required, the limit block 24 is retracted by magnet adsorption, and then after the valve plate 15 is reset, the limit block 24 at one end is first inserted into a limit groove, and then the upper limit block 24 is moved with a finger so that it is caught and aligned with the notch of the limit groove, and then the magnet is pulled out to achieve automatic insertion, which is highly convenient to operate.

[0034] In addition, the components designed in the present invention are all universal standard parts or components known to technical personnel in the field. Their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods. They can be fully implemented by technical personnel in the field, and there is no need to elaborate. The content protected by the present invention does not involve improvements to internal structures and methods.

[0035] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A maintenance-friendly sealed butterfly valve, characterized in that Including: A valve body (1), a fixed pipe (11) is fixedly communicated with the top of the valve body (1), an end plate is fixed to the top of the fixed pipe (11), a servo motor (12) is fixedly installed on the top of the end plate, the transmission shaft of the servo motor (12) movably penetrates the end plate and is fixedly connected to a valve rod (13), and the valve rod (13) is inserted into the inner cavity of the fixed pipe (11); A valve plate (15) adapted to the inner cavity of the valve body (1) is installed in the inner cavity of the valve body (1), a connecting component (2) is fixed to one side wall of the valve plate (15), a rotating block (14) is rotatably embedded in the bottom of the inner cavity of the valve body (1), limiting grooves are formed in the top of the rotating block (14) and the bottom of the valve rod (13), the connecting component (2) includes a housing (21), sliding blocks (22) adapted to the two sides of the inner cavity of the housing (21) are arranged on both sides of the inner cavity of the housing (21), a push rod (23) is connected to one side wall of the sliding block (22), the outer end of the push rod (23) movably penetrates the housing (21) and is fixedly connected to a limiting block (24) adapted to the limiting groove, a spring (25) is sleeved on the outer wall of the push rod (23), and two ends of the spring (25) are respectively fixedly connected to the sliding block (22) and the inner wall of the housing (21), a magnet plate (27) is fixed to the other side wall of the sliding block (22), and the limiting block (24) is inserted into the corresponding limiting groove.

2. The maintenance-friendly sealed butterfly valve according to claim 1, characterized in that, A bearing is embedded in one side wall of the sliding block (22) corresponding to the push rod (23), and the end of the push rod (23) is fixedly inserted into the inner cavity of the bearing.

3. The kind of maintenance-friendly sealed butterfly valve according to claim 1, characterized in that, Fixed ring plates (16) are fixed to both end faces of the valve body (1), and a plurality of uniformly distributed holes are formed in the outer wall of the fixed ring plate (16).

4. A maintenance-friendly sealed butterfly valve according to claim 1, wherein The linear distance between the two ends of the housing (21) and the inner wall of the valve body (1) is greater than the thickness of the limiting block (24).

5. The a maintenance-friendly sealed butterfly valve according to claim 1, wherein, The inner cavity of the fixed pipe (11) is filled with a packing ring, and the packing ring is sleeved on the outer wall of the valve rod (13).

6. The kind of maintenance-friendly sealed butterfly valve as described in claim 1, characterized in that The limiting block (24) is a hexagonal block, and the limiting groove is an inner hexagonal groove adapted to the limiting block (24).

7. The sealed butterfly valve facilitating maintenance according to claim 1, characterized in that, A recessed groove (26) is arranged on one side wall of the housing (21).

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