Novel high-reliability butterfly valve capable of preventing valve rod from being blown out

Abstract

The utility model provides a novel high-reliability butterfly valve capable of preventing a valve rod from being blown out, which comprises a first butterfly valve body, a second butterfly valve body, a sealing support frame, the valve rod, a filler, a rotating support, a pressing block and a valve plate, and is characterized in that the first butterfly valve body and the second butterfly valve body are spliced into a whole, and the sealing support frame is fixedly arranged in the first butterfly valve body and the second butterfly valve body; the valve rod is installed in the first butterfly valve body, the second butterfly valve body and the sealing supporting frame in a sliding mode. The filler is fixedly mounted at the top of the first butterfly valve body and the top of the second butterfly valve body, the rotary support is slidably mounted in the first butterfly valve body, the second butterfly valve body and the sealing support frame, and the pressing block is fixedly mounted at the bottom of the first butterfly valve body and the bottom of the second butterfly valve body; the valve plate is located in the sealing supporting frame and fixedly connected with the valve rod and the rotating support. Due to the arrangement of the second butterfly valve body and the sealing supporting frame, the valve rod is firmly installed and cannot be blown out under pressure, structures are tightly connected, and leakage is not prone to occurring.

Description

Technical Field

[0001] The utility model relates to the technical field of butterfly valves, in particular to a new type of butterfly valve with high reliability to prevent valve stem from blowing out. Background Art

[0002] In the field of industrial production and process control, valves are a key device used to control the flow and pressure of fluids. As a common type of valve, butterfly valves are widely used in various industrial systems. However, under certain working conditions, the problem of valve stem blowout has become a challenge worthy of attention, which may cause system leakage, equipment damage and safety risks. However, existing butterfly valves still have problems such as loose valve stem installation, easy to blow out under pressure, loose connection between structures, and easy leakage.

[0003] Therefore, it is very necessary to invent a new type of butterfly valve with high reliability and anti-valve stem blowout. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a new butterfly valve with high reliability that can prevent valve stem from blowing out, so as to solve the problems of existing butterfly valves that the valve stem is not firmly installed, easily blown out under pressure, and the connection between structures is not tight, which is easy to leak. A new butterfly valve with high reliability that can prevent valve stem from blowing out includes a first butterfly valve body, a second butterfly valve body, a sealing support frame, a valve stem, a packing, a rotating support, a pressure block and a valve plate, wherein: the first butterfly valve body and the second butterfly valve body are spliced ​​into one body, and the sealing support frame is fixedly installed inside the first butterfly valve body and the second butterfly valve body, and the valve stem is slidably installed inside the first butterfly valve body, the second butterfly valve body and the sealing support frame; the packing is fixedly installed on the top of the first butterfly valve body and the second butterfly valve body, and the rotating support is slidably installed inside the first butterfly valve body, the second butterfly valve body and the sealing support frame, and the pressure block is fixedly installed on the bottom of the first butterfly valve body and the second butterfly valve body; the valve plate is located inside the sealing support frame and is connected and fixed to the valve stem and the rotating support.

[0005] The second butterfly valve body includes a valve body outer frame, a valve neck, a valve seat, a mounting base, a mounting block and mounting bolts, and the valve neck is fixedly mounted on the top of the valve body outer frame, and the valve seat is fixedly mounted on the bottom of the valve body outer frame; the mounting base is fixedly mounted on the outside of the valve body outer frame, and the mounting block is fixedly mounted on the outside of the valve neck and the valve seat, and the mounting bolts connect and fix the two sets of mounting blocks.

[0006] The sealing support frame includes a sealing frame, a positioning frame, a valve plate moving frame, an upper mounting hole and a lower mounting hole, and the sealing frame is fixedly mounted inside the first butterfly valve body and the second butterfly valve body, and the positioning frame is fixedly mounted on the outside of the sealing frame; the valve plate moving frame is opened inside the sealing frame and the positioning frame, and the upper mounting hole and the lower mounting hole penetrate the sealing frame from top to bottom.

[0007] The internal structure of the second butterfly valve body is exactly the same as that of the first butterfly valve body, and they are mirror images of each other. The second butterfly valve body and the first butterfly valve body are installed together by mounting blocks and mounting bolts; the mounting blocks are a pair of steel metal seats that extend outward, and the mounting base is two groups of metal blocks. The interior of the mounting block is provided with holes for fixing mounting bolts, which has the following functions: Supporting function: The internal structure of the second butterfly valve body is exactly the same as that of the first butterfly valve body, and they are mirror images of each other, which means that the second butterfly valve body and the first butterfly valve body together constitute the support system of the entire butterfly valve; Formation of the valve body: The second butterfly valve body and the first butterfly valve body form a complete valve body, which is convenient for the valve plate to rotate inside it, and the valve is opened and closed by opening and closing; Convenient installation: The installation of the sealing support frame is facilitated by splicing the second butterfly valve body with the first butterfly valve body.

[0008] The sealing support frame adopts a ceramic ring, and the sealing frame inside the sealing support frame is clamped inside the first butterfly valve body and the second butterfly valve body, and the positioning frame is exposed on the outside of the first butterfly valve body and the second butterfly valve body; the valve stem and the rotating support can rotate inside the upper mounting hole and the lower mounting hole, sealing: the gap between the second butterfly valve body and the first butterfly valve body is blocked by the sealing support frame to prevent leakage during use; supporting the valve stem: the valve stem and the rotating support are wrapped by the upper mounting hole and the lower mounting hole to prevent the valve stem and the rotating support from being pressed and blown out under high pressure.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] 1. The second butterfly valve body of the utility model has the following functions: Supporting function: The internal structure of the second butterfly valve body is completely consistent with that of the first butterfly valve body, and they are mirror images of each other, which means that the second butterfly valve body and the first butterfly valve body together constitute the support system of the entire butterfly valve; The formation of the valve body:

[0011] The second butterfly valve body and the first butterfly valve body form a complete valve body, which is convenient for the valve plate to rotate inside it, and the valve is opened and closed by opening and closing; convenient installation: the second butterfly valve body and the first butterfly valve body are spliced ​​to facilitate the installation of the sealing support frame.

[0012] 2. The utility model is provided with a sealing support frame, sealing: the gap between the second butterfly valve body and the first butterfly valve body is sealed by the sealing support frame to prevent leakage during use; supporting the valve stem: the valve stem and the rotating support are wrapped by the upper mounting hole and the lower mounting hole to prevent the valve stem and the rotating support from being pressed and blown out under high pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Figure 2 It is a structural schematic diagram of the second butterfly valve body of the utility model.

[0015] Figure 3 It is a structural schematic diagram of the sealing support frame of the utility model.

[0016] In the figure:

[0017] First butterfly valve body 1, second butterfly valve body 2, valve body outer frame 21, valve neck 22, valve seat 23, mounting base 24, mounting block 25, mounting bolts 26, sealing support frame 3, sealing frame 31, positioning frame 32, valve plate moving frame 33, upper mounting hole 34, lower mounting hole 35, valve stem 4, packing 5, rotating support 6, pressure block 7, valve plate 8. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be described clearly and completely below. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0019] As attached Figure 1 To Attachment Figure 3 shown.

[0020] The utility model provides a new type of butterfly valve with high reliability to prevent valve stem blowing out, comprising a first butterfly valve body 1, a second butterfly valve body 2, a sealing support frame 3, a valve stem 4, a stuffing 5, a rotating support 6, a pressing block 7 and a valve plate 8, wherein: the first butterfly valve body 1 and the second butterfly valve body 2 are spliced ​​into one body, and the sealing support frame 3 is fixedly installed inside the first butterfly valve body 1 and the second butterfly valve body 2, and the valve stem 4 is slidably installed inside the first butterfly valve body 1, the second butterfly valve body 2 and the sealing support frame 3; the stuffing 5 is fixedly installed on the top of the first butterfly valve body 1 and the second butterfly valve body 2, and the rotating support 6 is slidably installed inside the first butterfly valve body 1, the second butterfly valve body 2 and the sealing support frame 3, and the pressing block 7 is fixedly installed on the bottom of the first butterfly valve body 1 and the second butterfly valve body 2; the valve plate 8 is located inside the sealing support frame 3, and is connected and fixed to the valve stem 4 and the rotating support 6.

[0021] The second butterfly valve body 2 includes a valve body outer frame 21, a valve neck 22, a valve seat 23, a mounting base 24, a mounting block 25 and a mounting bolt 26, and the valve neck 22 is fixedly mounted on the top of the valve body outer frame 21, and the valve seat 23 is fixedly mounted on the bottom of the valve body outer frame 21; the mounting base 24 is fixedly mounted on the outside of the valve body outer frame 21, and the mounting block 25 is fixedly mounted on the outside of the valve neck 22 and the valve seat 23, and the mounting bolt 26 connects and fixes the two sets of mounting blocks 25.

[0022] The sealing support frame 3 includes a sealing frame 31, a positioning frame 32, a valve plate moving frame 33, an upper mounting hole 34 and a lower mounting hole 35, and the sealing frame 31 is fixedly mounted inside the first butterfly valve body 1 and the second butterfly valve body 2, and the positioning frame 32 is fixedly mounted on the outside of the sealing frame 31; the valve plate moving frame 33 is opened inside the sealing frame 31 and the positioning frame 32, and the upper mounting hole 34 and the lower mounting hole 35 penetrate the sealing frame 31 from top to bottom.

[0023] The utility model provides a new type of butterfly valve with high reliability and anti-valve stem blowout.

[0024] 1. Butterfly valve main structure:

[0025] The first butterfly valve body 1 and the second butterfly valve body 2 are integrally spliced ​​to ensure the tightness of the structure.

[0026] The sealing support frame 3 is firmly installed inside the first butterfly valve body and the second butterfly valve body to provide stable support and sealing for the entire system.

[0027] 2. Valve body detail design:

[0028] The internal structure of the second butterfly valve body 2 includes a valve body outer frame 21 , a valve neck 22 , a valve seat 23 , a mounting base 24 , a mounting block 25 and mounting bolts 26 .

[0029] The valve neck is fixedly installed on the top of the valve body frame, and the valve seat is installed on the bottom of the valve body frame.

[0030] The mounting base 24 is located outside the valve body frame, and the mounting blocks 25 are connected together by mounting bolts 26 to ensure the stability of the installation of the first butterfly valve body 1 and the second butterfly valve body 2.

[0031] 3. Sealing support frame design:

[0032] The sealing support frame 3 comprises a sealing frame 31 , a positioning frame 32 , a valve plate moving frame 33 , an upper mounting hole 34 and a lower mounting hole 35 .

[0033] The sealing frame is fixedly installed inside the first butterfly valve body and the second butterfly valve body, and the positioning frame is fixed on the outer side of the sealing frame.

[0034] The valve plate moving frame is arranged inside the sealing frame and the positioning frame, and the upper mounting hole and the lower mounting hole penetrate the sealing frame to ensure the freedom of movement of the valve plate.

[0035] 4. Mirror image structure of valve body:

[0036] The internal structure of the second butterfly valve body is completely consistent with that of the first butterfly valve body and is a mirror image of each other. They are connected together through mounting blocks and mounting bolts to ensure the symmetry and stability of the valve body.

[0037] 5. Sealing support frame material selection:

[0038] The seal support frame adopts ceramic ring, which provides high wear and corrosion resistance.

[0039] The sealing frame is clamped inside the first butterfly valve body and the second butterfly valve body, and the positioning frame is exposed outside to ensure the sealing effect and the firmness of the structure.

[0040] 6. Valve stem and rotating support design:

[0041] The valve stem and the rotating support can rotate freely inside the upper mounting hole and the lower mounting hole to ensure the flexible movement of the valve plate.

[0042] The specific implementation of this high-reliability new butterfly valve is designed to provide stable and reliable valve operation and prevent the problem of valve stem blowout through structural design and material selection. Such a design can be widely used in industry and other fields to ensure the safe and efficient operation of the system.

[0043] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the protection scope of the utility model.

Claims

1. A new type of butterfly valve with high reliability and anti-stem blowout, characterized by: The invention comprises a first butterfly valve body (1), a second butterfly valve body (2), a sealing support frame (3), a valve stem (4), a packing (5), a rotating support (6), a pressing block (7) and a valve plate (8), wherein: the first butterfly valve body (1) and the second butterfly valve body (2) are spliced ​​into one body, and the sealing support frame (3) is fixedly installed inside the first butterfly valve body (1) and the second butterfly valve body (2), and the valve stem (4) is slidably installed inside the first butterfly valve body (1), the second butterfly valve body (2) and the sealing support frame (3); the packing (5) is fixedly installed on the top of the first butterfly valve body (1) and the second butterfly valve body (2), and the rotating support (6) is slidably installed inside the first butterfly valve body (1), the second butterfly valve body (2) and the sealing support frame (3), and the pressing block (7) is fixedly installed on the bottom of the first butterfly valve body (1) and the second butterfly valve body (2); and the valve plate (8) is located inside the sealing support frame (3) and is connected and fixed to the valve stem (4) and the rotating support (6).

2. A new type of butterfly valve with high reliability and anti-stem blowout as claimed in claim 1, characterized in that: The second butterfly valve body (2) comprises a valve body outer frame (21), a valve neck (22), a valve seat (23), a mounting base (24), a mounting block (25) and mounting bolts (26), wherein the valve neck (22) is fixedly mounted on the top of the valve body outer frame (21), and the valve seat (23) is fixedly mounted on the bottom of the valve body outer frame (21); the mounting base (24) is fixedly mounted on the outside of the valve body outer frame (21), and the mounting block (25) is fixedly mounted on the outside of the valve neck (22) and the valve seat (23), and the mounting bolts (26) connect and fix the two sets of mounting blocks (25).

3. A new type of butterfly valve with high reliability and anti-stem blowout as claimed in claim 1, characterized in that: The sealing support frame (3) comprises a sealing frame (31), a positioning frame (32), a valve plate moving frame (33), an upper mounting hole (34) and a lower mounting hole (35), and the sealing frame (31) is fixedly mounted inside the first butterfly valve body (1) and the second butterfly valve body (2), and the positioning frame (32) is fixedly mounted on the outside of the sealing frame (31); the valve plate moving frame (33) is opened inside the sealing frame (31) and the positioning frame (32), and the upper mounting hole (34) and the lower mounting hole (35) penetrate the sealing frame (31) from top to bottom.

4. A new type of butterfly valve with high reliability and anti-stem blowout as claimed in claim 2, characterized in that: The internal structure of the second butterfly valve body (2) is completely consistent with that of the first butterfly valve body (1) and is a mirror image of each other. The second butterfly valve body (2) and the first butterfly valve body (1) are mounted together via a mounting block (25) and mounting bolts (26); the mounting base (24) is a pair of steel metal seats extending outward, and the mounting block (25) is two groups of metal blocks, and a hole for fixing the mounting bolts (26) is provided inside the mounting block (25).

5. A new type of butterfly valve with high reliability and anti-valve stem blowout as claimed in claim 3, characterized in that: The sealing support frame (3) is made of a ceramic ring, and the sealing frame (31) inside the sealing support frame (3) is clamped inside the first butterfly valve body (1) and the second butterfly valve body (2), and the positioning frame (32) is exposed outside the first butterfly valve body (1) and the second butterfly valve body (2); the valve stem (4) and the rotating support (6) can rotate inside the upper mounting hole (34) and the lower mounting hole (35).

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