Hard alloy valve seat

Abstract

The utility model relates to the technical field of alloy valve seats, and discloses a hard alloy valve seat which comprises a valve seat body, the top of the valve seat body is rotationally connected with a rotating shaft, the top of the rotating shaft is fixedly connected with a valve handle, the left side and the right side of the valve seat body are fixedly connected with first flange plates, and mounting mechanisms are arranged on the left side and the right side of the valve seat body. The mounting mechanism comprises a connecting assembly and a valve seat connecting assembly, a pipeline is arranged on the outer side of a first flange plate, second flange plates are arranged on the left side and the right side of the pipeline, the connecting assembly is arranged on the surfaces of the second flange plates, and the valve seat connecting assembly is arranged on the surface of the first flange plate. Through the arrangement of the telescopic columns, the springs and the pipeline connecting arc-shaped fixing blocks, the pipelines connected to the two ends can be clamped and fixed and are matched with the second flange plates for installation, the outer surfaces of the pipelines can be fixed on the basis that the second flange plates on the two sides are installed, the pipeline connecting effect is guaranteed, the pipeline installing effect is good, and disassembly and assembly are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of alloy valve seats, in particular to a hard alloy valve seat. Background Art

[0002] The valve seat is a device used to support the fully closed position of the valve core. It is a removable surface part in the valve, used to support the fully closed position of the valve core and form a sealing pair. Generally, the valve seat diameter is the maximum flow diameter of the valve. For example, the valve seat material of the butterfly valve is very wide, and various types of rubber, plastic, and metal materials can be used as valve seat materials. The disc valve seat and the valve body are fixed by structural adhesive. This fixing method has the problem of easy leakage at the adhesive, and this installation method is not convenient enough and is not easy to install.

[0003] According to a disc valve inlaid with a hard alloy valve disc and a valve seat disclosed on the patent website (authorization announcement number: CN117212494A), "The present invention relates to the field of disc valves, and in particular to a disc valve inlaid with a hard alloy valve disc and a valve seat. It includes a valve body, a valve seat assembly, a valve stem, a valve disc body and a valve disc assembly. The valve body is hollow inside to form a chamber for medium flow, and flow holes are opened at both ends to communicate with external pipelines; the valve seat assembly is arranged in the chamber corresponding to the flow hole; a first annular groove is arranged at one end of the flow hole close to the chamber, and the valve seat assembly The valve seat ring and the valve seat sleeve are arranged in the first annular groove, and the valve seat ring and the valve seat sleeve are interference fit; the valve stem is arranged through the valve body, and a rocker arm is fixed radially at one end located inside the valve body, and a valve disc body is arranged at the end of the rocker arm away from the valve stem, and a valve disc assembly is arranged on the valve disc body, and the valve disc assembly cooperates with the valve seat assembly to close the flow hole; a second annular groove is arranged at one end of the valve disc body close to the flow hole, and the valve disc assembly is arranged in the second annular groove; wherein the valve disc assembly includes a valve disc sleeve and a valve disc ring which are arranged separately, and the valve disc ring is interference fit with the valve disc seat. "

[0004] Based on the above, the applicant believes that there are the following defects:

[0005] The disc valve inlaid with a hard alloy valve disc and a valve seat comprises a valve body, a valve seat assembly, a valve stem, a valve disc body and a valve disc assembly. The valve is fixed to the valve body by welding, and has an interference fit with the valve seat ring, and is fastened with a step structure, so that the valve seat ring is not easy to fall off; the valve disc sleeve and the valve disc ring are also fixed by welding and interference fit, but this fixed method is not convenient for replacement and maintenance, and when maintenance is required, the valve seat, pipeline and other pipelines cannot be quickly separated and disassembled. Utility Model Content

[0006] The purpose of the utility model is to provide a hard alloy valve seat to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cemented carbide valve seat, comprising a valve seat, wherein flanges 1 are fixedly connected to the left and right sides of the valve seat, mounting mechanisms are arranged on the left and right sides of the valve seat, the mounting mechanisms include a connecting assembly and a valve seat connecting assembly, a pipeline is arranged on the outer side of flange 1, flanges 2 are arranged on the left and right sides of the pipeline, the connecting assembly is arranged on the surface of flange 2, the valve seat connecting assembly is arranged on the surface of flange 1, and a protective mechanism is arranged inside the pipeline.

[0008] Preferably, the connecting assembly includes a flange connecting ring, which is fixedly connected to the surface of the flange plate at one end of the pipeline away from the valve seat, and the end of the flange connecting ring away from the flange plate is fixedly connected to the pipeline connecting ring, and the inner side of the flange connecting ring is fixedly connected to a connecting block, and the surface of the connecting block is provided with bolts, and the inside of the pipeline connecting ring is fixedly connected with a telescopic column, and the surface of the telescopic column is provided with a spring, and the top of the telescopic column is fixedly connected to the pipeline connecting arc fixing block at one end away from the pipeline connecting ring. The pipelines connected at both ends can be clamped and fixed by the arrangement of the telescopic column, the spring and the pipeline connecting arc fixing block, and can be installed in conjunction with the flange plate two, and the outer surface of the pipeline can be fixed on the basis of the installation of the flange plates two on both sides, so as to ensure the connection effect of the pipeline, and the pipeline installation effect is good, which is convenient for disassembly and assembly.

[0009] Preferably, two groups of flange connection rings and pipe connection rings are provided, and nine groups of telescopic columns, springs and pipe connection arc-shaped fixing blocks are provided.

[0010] Preferably, the valve seat connection assembly includes a valve seat fixing ring, a valve seat fixing ring is provided on the surface of the flange plate 1, a connecting block 1 is fixedly connected to the top of the valve seat fixing ring, a fixing hole 1 is opened on the surface of the valve seat fixing ring, a fixing hole 2 is opened on the surface of the connecting block 1, a fixing bolt 1 is arranged inside the fixing hole 1, and a fixing bolt 2 is arranged inside the fixing hole 2. When the pipeline is connected to the valve seat, the flange plate 1 and the flange plate 2 are fixed together by the valve seat fixing ring, and the pipeline is fixed for the second time in coordination with the installation of the flange plate 1 and the flange plate 2 to ensure the connectivity of the pipeline, and the pipeline can be quickly disassembled and assembled, which is convenient for disassembly and assembly.

[0011] Preferably, the valve seat fixing ring and the connecting block 1 are provided in four groups, and the fixing hole 1 and the fixing bolt 1 are provided in eight groups.

[0012] Preferably, the protective mechanism includes a pipeline anti-corrosion shell, which is sleeved on the pipeline surface, an internal anti-corrosion sleeve is sleeved inside the pipeline, a sealing ring is clamped on the end of the flange away from the pipeline, and a reinforcing sleeve is provided on the end of the internal anti-corrosion sleeve away from the valve seat, an annular groove is provided on the end of the flange close to the valve seat, a sealing ring is clamped inside the annular groove, and a handle anti-corrosion coating is fixedly connected to the surface of the valve handle.

[0013] Preferably, a rotating shaft is rotatably connected to the top of the valve seat, a valve handle is fixedly connected to the top of the rotating shaft, and flange plates 1 are fixedly connected to the left and right sides of the valve seat.

[0014] Compared with the prior art, the utility model provides a hard alloy valve seat, which has the following beneficial effects:

[0015] 1. The carbide valve seat is provided with a connection assembly. The pipes connected at both ends can be clamped and fixed by setting a telescopic column, a spring and a pipe connection arc fixing block. It can be installed in conjunction with the second flange. The surface of the pipe can be fixed on the basis of the installation of the second flange on both sides to ensure the connection effect of the pipe. The pipe installation effect is good and it is easy to disassemble and assemble.

[0016] 2. The carbide valve seat is provided with a valve seat connection assembly. When the pipeline is connected to the valve seat, the flange one and the flange two are fixed together by the valve seat fixing ring. The pipeline is fixed for the second time by the installation of the flange one and the flange two to ensure the connectivity of the pipeline. The pipeline can be quickly disassembled and assembled, which is convenient for disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of one end of the structural pipeline of the utility model;

[0020] Figure 3 This is a schematic diagram of the structural connection components of the utility model;

[0021] Figure 4 This is a schematic diagram of the valve seat connection assembly of the utility model structure;

[0022] Figure 5It is a schematic diagram of the structural protection mechanism of the utility model.

[0023] In the figure: 1. valve seat; 2. rotating shaft; 3. valve handle; 4. flange plate 1; 5. pipeline; 6. flange plate 2; 7. installation mechanism; 71. connection assembly; 711. flange connection ring; 712. pipeline connection ring; 713. connection block; 714. bolt; 715. telescopic column; 716. spring; 717. pipeline connection arc fixing block; 72. valve seat connection assembly; 721. valve seat fixing ring; 722. connection block 1; 723. fixing hole 1; 724. fixing hole 2; 725. fixing bolt 1; 726. fixing bolt 2; 8. protection mechanism; 81. pipeline anti-corrosion shell; 82. internal anti-corrosion sleeve; 83. sealing ring 1; 84. reinforcement sleeve; 85. handle anti-corrosion coating; 86. annular groove; 87. sealing ring 2. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] The utility model provides the following technical solutions:

[0027] Embodiment 1

[0028] See also Figure 1-4 A hard alloy valve seat comprises a valve seat 1, a flange 4 is fixedly connected to the left and right sides of the valve seat 1, a mounting mechanism 7 is arranged on the left and right sides of the valve seat 1, the mounting mechanism 7 comprises a connecting component 71 and a valve seat connecting component 72, a pipe 5 is arranged on the outside of the flange 4, a flange 2 6 is arranged on the left and right sides of the pipe 5, the connecting component 71 is arranged on the surface of the flange 2 6, the valve seat connecting component 72 is arranged on the surface of the flange 4, and a protective mechanism 8 is arranged inside the pipe 5;

[0029] The connection assembly 71 includes a flange connection ring 711, which is fixedly connected to the surface of the flange plate 26 at one end of the pipeline 5 away from the valve seat 1. The end of the flange connection ring 711 away from the flange plate 26 is fixedly connected to a pipeline connection ring 712, and a connection block 713 is fixedly connected to the inner side of the flange connection ring 711. The surface of the connection block 713 is provided with bolts 714. A telescopic column 715 is fixedly connected to the inside of the pipeline connection ring 712, and a spring 716 is provided on the surface of the telescopic column 715. The end of the top of the telescopic column 715 away from the pipeline connection ring 712 is fixedly connected to a pipeline connection arc fixing block 717. Through the arrangement of the telescopic column 715, the spring 716 and the pipeline connection arc fixing block 717, the pipeline 5 connected at both ends can be clamped and fixed, and the flange plate 26 can be installed. The outer surface of the pipeline can be fixed on the basis of the installation of the flange plates 26 on both sides, so as to ensure the connection effect of the pipeline, and the pipeline installation effect is good, which is convenient for disassembly and assembly;

[0030] There are two sets of flange connection rings 711 and pipe connection rings 712, and nine sets of telescopic columns 715, springs 716 and pipe connection arc-shaped fixing blocks 717;

[0031] The valve seat connection assembly 72 includes a valve seat fixing ring 721, a valve seat fixing ring 721 is provided on the surface of the flange 4, a connecting block 722 is fixedly connected to the top of the valve seat fixing ring 721, a fixing hole 723 is provided on the surface of the valve seat fixing ring 721, a fixing hole 724 is provided on the surface of the connecting block 722, a fixing bolt 725 is provided inside the fixing hole 723, and a fixing bolt 726 is provided inside the fixing hole 724. When the pipeline 5 is connected to the valve seat 1, the flange 4 and the flange 6 are fixed together through the valve seat fixing ring 721, and the pipeline is fixed for a second time in conjunction with the installation of the flange 4 and the flange 6, so as to ensure the connectivity of the pipeline 5, and the pipeline 5 can be quickly disassembled and assembled, which is convenient for disassembly and assembly;

[0032] There are four groups of valve seat fixing rings 721 and connecting blocks 1 722 , and there are eight groups of fixing holes 1 723 and fixing bolts 1 725 .

[0033] Embodiment 2

[0034] See also Figure 1-5 On the basis of the first embodiment, the protection mechanism 8 further comprises a pipeline anti-corrosion housing 81, the pipeline anti-corrosion housing 81 is sleeved on the surface of the pipeline 5, an internal anti-corrosion sleeve 82 is sleeved inside the pipeline 5, a sealing ring 83 is clamped on the end of the flange 6 away from the pipeline 5, a reinforcing sleeve 84 is provided on the end of the internal anti-corrosion sleeve 82 away from the valve seat 1, an annular groove 86 is provided on the end of the flange 4 close to the valve seat 1, a sealing ring 87 is clamped inside the annular groove 86, and a handle anti-corrosion coating 85 is fixedly connected to the surface of the valve handle 3;

[0035] The top of the valve seat 1 is rotatably connected to a rotating shaft 2, the top of the rotating shaft 2 is fixedly connected to a valve handle 3, and the left and right sides of the valve seat 1 are fixedly connected to flanges 4.

[0036] In actual operation, when the device is used, first, the pipeline anti-corrosion shell 81 is sleeved on the surface of the pipeline 5, the internal anti-corrosion sleeve 82 is sleeved inside the pipeline 5, the sealing ring 87 is placed inside the annular groove 86, the handle anti-corrosion coating 85 is applied to the surface of the valve handle 3, the sealing ring 83 and the reinforcing sleeve 84 are installed, and then the pipeline can be installed, the flange 4 on the side of the valve seat 1 is connected to the flange 6 on the side of the pipeline 5, and fixed by connecting bolts, and then the connecting assembly 71 and the valve seat connecting assembly 72 are installed, and the flange connecting ring 711 and the pipeline connecting ring 712 are fixed by the connecting block 713 and the bolt 714. The surface of the flange 26 at the end away from the valve seat 1 can be clamped and fixed to the pipes 5 connected at both ends through the arrangement of the telescopic column 715, the spring 716 and the pipe connection arc fixing block 717, and can be installed in conjunction with the flange 26. The outer surface of the pipe can be fixed on the basis of the installation of the flanges 26 on both sides to ensure the connection effect of the pipe, and the flange 26 at the end close to the valve seat 1 is connected to the flange 14, and the flange 14 and the flange 26 are fixed together through the valve seat fixing ring 721. The pipeline is fixed for a second time in conjunction with the installation of the flange 14 and the flange 26 to ensure the connectivity of the pipe 5, and the pipe 5 can be quickly disassembled and assembled, which is convenient for disassembly and assembly.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A hard alloy valve seat, comprising a valve seat (1), characterized in that: The valve seat (1) is fixedly connected to a flange plate one (4) on both sides, and the valve seat (1) is provided with a mounting mechanism (7) on both sides. The mounting mechanism (7) includes a connecting component (71) and a valve seat connecting component (72). A pipeline (5) is provided on the outside of the flange plate one (4), and flange plates two (6) are provided on both sides of the pipeline (5). The connecting component (71) is provided on the surface of the flange plate two (6), and the valve seat connecting component (72) is provided on the surface of the flange plate one (4). A protective mechanism (8) is provided inside the pipeline (5).

2. A cemented carbide valve seat according to claim 1, characterized in that: The connection assembly (71) comprises a flange connection ring (711), wherein the flange connection ring (711) is fixedly connected to the surface of flange plate 2 (6) at one end of the pipeline (5) away from the valve seat (1), and the end of the flange connection ring (711) away from flange plate 2 (6) is fixedly connected to a pipeline connection ring (712), and a connection block (713) is fixedly connected to the inner side of the flange connection ring (711), and a bolt (714) is provided on the surface of the connection block (713), and a telescopic column (715) is fixedly connected to the inside of the pipeline connection ring (712), and a spring (716) is provided on the surface of the telescopic column (715), and a pipeline connection arc-shaped fixing block (717) is fixedly connected to the top of the telescopic column (715) away from the pipeline connection ring (712).

3. A cemented carbide valve seat according to claim 2, characterized in that: The flange connection ring (711) and the pipe connection ring (712) are provided in two groups, and the telescopic column (715), the spring (716) and the pipe connection arc-shaped fixing block (717) are provided in nine groups.

4. The hard alloy valve seat according to claim 1, characterized in that: The valve seat connection assembly (72) includes a valve seat fixing ring (721), the surface of the flange plate (4) is provided with a valve seat fixing ring (721), the top of the valve seat fixing ring (721) is fixedly connected to a connecting block (722), the surface of the valve seat fixing ring (721) is provided with a fixing hole (723), the surface of the connecting block (722) is provided with a fixing hole (724), the interior of the fixing hole (723) is provided with a fixing bolt (725), and the interior of the fixing hole (724) is provided with a fixing bolt (726).

5. A cemented carbide valve seat according to claim 4, characterized in that: The valve seat fixing ring (721) and the connecting block one (722) are provided in four groups, and the fixing hole one (723) and the fixing bolt one (725) are provided in eight groups.

6. The hard alloy valve seat according to claim 1, characterized in that: The protection mechanism (8) comprises a pipeline anti-corrosion housing (81), the pipeline anti-corrosion housing (81) is sleeved on the surface of the pipeline (5), an internal anti-corrosion sleeve (82) is sleeved inside the pipeline (5), a sealing ring (83) is clamped on the end of the flange plate (6) away from the pipeline (5), a reinforcing sleeve (84) is provided on the end of the internal anti-corrosion sleeve (82) away from the valve seat (1), an annular groove (86) is provided on the end of the flange plate (4) close to the valve seat (1), a sealing ring (87) is clamped inside the annular groove (86), and a handle anti-corrosion coating (85) is fixedly connected to the surface of the valve handle (3).

7. The hard alloy valve seat according to claim 1, characterized in that: The top of the valve seat (1) is rotatably connected to a rotating shaft (2), the top of the rotating shaft (2) is fixedly connected to a valve handle (3), and the left and right sides of the valve seat (1) are fixedly connected to flange plates 1 (4).

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