Flange connecting valve

Abstract

The utility model discloses a flange connecting valve in the technical field of flange connecting valves, which comprises a ball valve main body and a flange seat, the left end and the right end of the ball valve main body are respectively provided with a sealing sleeve main body, the left end and the right end of each sealing sleeve main body are respectively provided with a fixing disc, and the two side walls of each fixing disc are respectively provided with a sealing sleeve. Valve body pipelines are installed on the two side walls of the ball valve body and inserted into the sealing sleeve on one side, the flange base is inserted into the sealing sleeve on the other side, extending inner pipes are assembled on the inner walls of the sealing sleeves, abrasion-resistant coatings are arranged on the outer walls of the extending inner pipes, and metal hard sealing abrasion-resistant blocks are arranged on the outer walls of the abrasion-resistant coatings. A screw groove is formed in the attached position of the fixing disc and the sealing sleeve, and a bolt body is connected into the screw groove in a threaded mode. According to the flange connecting valve, abrasion is avoided, the corrosion-resistant coating has corrosion resistance, the service life is prolonged, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of flange connection valves, in particular to a flange connection valve. Background Art

[0002] A ball valve is a valve whose opening and closing member (ball) is driven by a valve stem and rotates around its axis. It can also be used for regulating and controlling fluids. The hard-sealed V-type ball valve has a strong shear force between its V-shaped ball core and the metal valve seat welded with cemented carbide, making it particularly suitable for media containing fibers, tiny solid particles, etc. Multi-way ball valves can not only flexibly control the confluence, diversion, and flow direction of media in pipelines, but can also close any channel and connect the other two channels. This type of valve should generally be installed horizontally in pipelines. Ball valves are divided into pneumatic ball valves, electric ball valves, and manual ball valves according to the drive mode. The sealing principle of the flange is extremely simple: the two sealing surfaces of the bolt squeeze the flange gasket against each other to form a seal. In my country, ball valves are widely used in oil refining, long-distance pipelines, chemicals, papermaking, pharmaceuticals, water conservancy, electricity, municipal administration, steel and other industries, and play an important role in the national economy. It has a 90-degree rotating action, the plug body is a spherical ball with a circular through hole or channel passing through its axis.

[0003] However, the existing flange-connected hard-sealed ball valve structure has poor sealing performance and the connection is not tight enough; therefore, it does not meet existing needs, and therefore the existing technology needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to provide a flange connection valve to solve the problem that the existing flange connection hard seal ball valve structure proposed in the above background technology has poor connection sealing performance and the connection is not tight enough; therefore, it does not meet the existing needs.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a flange connection valve, comprising a ball valve body and a flange seat, wherein the left and right ends of the ball valve body are equipped with a sealing sleeve body, the left and right ends of the sealing sleeve body are equipped with a fixed disk, both side walls of the fixed disk are equipped with a sealing sleeve, both side walls of the ball valve body are equipped with a valve body pipe, the valve body pipe is inserted into the sealing sleeve on one side, and the flange seat is inserted into the sealing sleeve on the other side, the inner wall of the sealing sleeve is equipped with an extended inner tube, the outer wall of the extended inner tube is provided with a wear-resistant coating, the outer wall of the wear-resistant coating is provided with a metal hard sealing anti-wear block, a screw groove is provided at the joint of the fixed disk and the sealing sleeve, and a bolt body is screwed in the screw groove.

[0006] Preferably, one side of the flange seat is equipped with a flange connection edge.

[0007] Preferably, a circular groove is formed at the bottom end of the bolt body, and a bolt rod is installed at the bottom end of the circular groove.

[0008] Preferably, a fixing ring is installed on the outer upper end of the bolt rod, and an annular pressure plate, a spring and an annular rubber sheet are sheathed on the circumferential surface of the bolt rod.

[0009] Preferably, an extrusion block is installed at the upper edge of the annular rubber sheet.

[0010] Preferably, the outer wall of the prestressed bolt body is provided with an arc surface, and the surface of the arc surface is provided with anti-slip grooves.

[0011] Preferably, a through opening is provided inside the extended inner tube.

[0012] Preferably, a sealing gasket is provided on the inner wall of the extended inner tube.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the flange connection valve has a reasonable structural design;

[0014] By setting up a sealing gasket, a metal hard sealing anti-wear block, a corrosion-resistant coating and a sealing inner gasket, when in use, the sealing gasket and the sealing inner gasket ensure the sealing of the connection during use. The metal hard sealing anti-wear block has a good anti-wear effect and avoids wear. The corrosion-resistant coating is corrosion-resistant, increases the service life, and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the sealing body of the utility model;

[0017] Figure 3 This is a front view of the sealing sleeve body of the utility model;

[0018] Figure 4 This is a schematic diagram of the bolt body of the utility model.

[0019] In the figure: 1. Ball valve body; 2. Valve body pipe; 3. Sealing sleeve body; 4. Flange seat; 5. Flange connection edge; 6. Fixed plate; 7. Sealing sleeve; 8. Bolt body; 81. Circular groove; 82. Annular rubber sheet; 83. Bolt rod; 84. Extrusion block; 85. Annular pressure piece; 86. Fixed ring; 87. Spring; 88. Arc surface; 9. Metal hard sealing anti-wear block; 10. Extended inner tube; 11. Abrasion-resistant coating; 12. Sealing gasket; 13. Through port. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-4 , the utility model provides a technical solution:

[0022] In the present technical solution, a flange connection valve comprises a ball valve body 1 and a flange seat 4, wherein the left and right ends of the ball valve body 1 are equipped with a sealing sleeve body 3, the left and right ends of the sealing sleeve body 3 are equipped with a fixed disk 6, and both side walls of the fixed disk 6 are equipped with a sealing sleeve 7, and both side walls of the ball valve body 1 are equipped with a valve body pipe 2, the valve body pipe 2 is inserted into the sealing sleeve 7 on one side, and the flange seat 4 is inserted into the sealing sleeve 7 on the other side. The inner wall of the sealing sleeve 7 is equipped with an extended inner tube 10, and the outer wall of the extended inner tube 10 is provided with a wear-resistant coating 11, and the outer wall of the wear-resistant coating 11 is provided with a metal hard sealing anti-wear block 9, and a screw groove is provided at the joint of the fixed disk 6 and the sealing sleeve 7, and a bolt body 8 is screwed in the screw groove;

[0023] In this technical solution, both ends of the ball valve body 1 are equipped with valve body pipes 2 for pipeline connection. The valve body pipe 2 is connected to the flange seat 4 through a sealing sleeve 7, and then the sealing hard structure provided inside is used to improve the sealing of the connection. The sealing sleeve 7 and the fixed plate 6 are an integrated structure and are installed on the sealing sleeve body 3 through a bolt body 8.

[0024] In some technical solutions, reference Figure 1-4 , one side of the flange seat 4 is equipped with a flange connection edge 5;

[0025] In this technical solution, the flange connection is facilitated by the provision of the flange connection edge 5 .

[0026] In some technical solutions, reference Figure 1-4 A fixing ring 86 is installed on the outer upper end of the bolt rod 83, and an annular pressing piece 85, a spring 87 and an annular rubber sheet 82 are set on the circumferential surface of the bolt rod 83.

[0027] In this technical solution, the annular pressing plate 85 is located on the upper side of the fixing ring 86 , the spring 87 is located on the upper side of the annular pressing plate 85 , and the annular rubber sheet 82 is located on the lower side of the fixing ring 86 .

[0028] In some technical solutions, reference Figure 3 An extrusion block 84 is installed at the upper edge of the annular rubber sheet 82.

[0029] In this technical solution, the annular pressing sheet 85 is squeezed downward by the action of the spring 87, and the squeezing block 84 is squeezed downward by the action of the annular pressing sheet 85, so that the squeezing block 84 further squeezes the edge of the annular rubber sheet 82, thereby improving the sealing effect.

[0030] In some technical solutions, reference Figure 1-4 The outer wall of the prestressed bolt body 8 is provided with an arc surface 88, and the surface of the arc surface 88 is provided with anti-slip grooves.

[0031] In this technical solution, the provision of the arc surface 88 facilitates driving the bolt body 8 .

[0032] In some technical solutions, reference Figure 1-4 , a through opening 13 is provided inside the extended inner tube 10;

[0033] In this technical solution, the valve body pipeline 2 can be connected to the sealing sleeve body 3 at the through opening 13 .

[0034] In some technical solutions, reference Figure 1-4 , the inner wall of the extended inner tube 10 is provided with a sealing gasket 12;

[0035] In this technical solution, the valve line 2 and the opening 13 are sealed by the sealing gasket 12 .

[0036] Working principle: When in use, insert the valve body pipe 2 into the sealing sleeve 7, and insert the pipe of the flange seat 4 into the sealing sleeve 7 respectively. The sealing gasket 12 ensures the sealing of the contact surface, and then the metal hard sealing anti-wear block 9 reduces the damage caused by friction, and has a good sealing effect. The corrosion-resistant coating 11 has strong corrosion resistance.

[0037] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0038] While the present invention has been described above with reference to exemplary embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the disclosed embodiments may be combined with one another in any manner. The omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A flange connection valve, comprising a ball valve body (1) and a flange seat (4), characterized in that: The left and right ends of the ball valve body (1) are both equipped with a sealing sleeve body (3), the left and right ends of the sealing sleeve body (3) are both equipped with a fixed disk (6), the two side walls of the fixed disk (6) are both equipped with a sealing sleeve (7), the two side walls of the ball valve body (1) are both equipped with a valve body pipe (2), the valve body pipe (2) is inserted into the sealing sleeve (7) on one side, and the flange seat (4) is inserted into the sealing sleeve (7) on the other side, the inner wall of the sealing sleeve (7) is equipped with an extended inner tube (10), the outer wall of the extended inner tube (10) is provided with a wear-resistant coating (11), and the outer wall of the wear-resistant coating (11) is provided with a metal hard sealing anti-wear block (9), a screw groove is provided at the joint of the fixed disk (6) and the sealing sleeve (7), and a bolt body (8) is screwed into the screw groove.

2. A flange connection valve according to claim 1, characterized in that: One side of the flange seat (4) is equipped with a flange connection edge (5).

3. The flange connection valve according to claim 1, characterized in that: A circular groove (81) is provided at the bottom end of the bolt body (8), and a bolt rod (83) is installed at the bottom end of the circular groove (81).

4. A flange connection valve according to claim 3, characterized in that: A fixing ring (86) is installed on the outer upper end of the bolt rod (83), and an annular pressing plate (85), a spring (87) and an annular rubber sheet (82) are sheathed on the circumferential surface of the bolt rod (83).

5. A flange connection valve according to claim 4, characterized in that: An extrusion block (84) is installed at the upper edge of the annular rubber sheet (82).

6. The flange connection valve according to claim 1, characterized in that: The outer wall of the bolt body (8) is provided with an arc surface (88), and the surface of the arc surface (88) is provided with anti-slip grooves.

7. The flange connection valve according to claim 1, characterized in that: A through opening (13) is provided inside the extended inner tube (10).

8. The flange connection valve according to claim 1, characterized in that: The inner wall of the extended inner tube (10) is provided with a sealing gasket (12).

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