Rubber valve seat convenient to disassemble

Abstract

The utility model discloses a rubber valve seat convenient to disassemble, and relates to the technical field of rubber valve seats. A valve hole is formed in the valve body; the side end of the valve body is fixedly connected with a second flange plate. A first flange plate is mounted at the side end of the second flange plate; the rubber seat needs to be replaced regularly after being used for a long time, so that the operation performance of the valve body is guaranteed, the first flange plate and the second flange plate are separated by rotating the positioning bolts, the first flange plate and the second flange plate are connected and fixed through the multiple sets of positioning bolts, and the rubber seat can be fixedly installed in the valve body through the first flange plate; after the first flange plate and the second flange plate are separated and detached, the rubber elastic ring in the positioning clamping groove is detached, the rubber base can be pulled out of the valve body, the rubber base and the valve body are not connected through glue, and therefore the rubber base can be directly pulled out, the rubber base can be detached conveniently, and the rubber base can be replaced with a new rubber base subsequently and can be installed conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber valve seats, in particular to a rubber valve seat which is easy to disassemble. Background Art

[0002] The removable surface part inside the valve is used to support the valve core in the fully closed position and form a sealing pair; generally, the valve seat diameter is the maximum flow diameter of the valve.

[0003] A Chinese patent with authorization announcement number CN205689857U discloses a rubber valve seat, including a rubber skeleton, a sealing surface, a clamp head symmetrically arranged along the rubber skeleton, a sealing protrusion, a positioning block, a first valve plate mounting hole, and a second valve plate mounting hole. The sealing surface is located on the inner wall of the rubber skeleton, the sealing surface is integrally connected to the rubber skeleton, the clamp head is located on the outer wall of the rubber skeleton, the clamp head is integrally connected to the rubber skeleton, the sealing protrusion is located on one side of the clamp head, the sealing protrusion is integrally connected to the clamp head, and the positioning block is located on the top of the outer wall of the clamp head; the valve plate can be fixed through the first valve plate mounting hole and the second valve plate mounting hole. When the valve plate is installed in place, the sealing surface covers the valve plate. Under high pressure and large flow conditions, the sealing surface effectively compensates for the rubber skeleton and improves the sealing reliability. The positioning block improves the positioning effect and saves assembly time. The sealing protrusion effectively seals the contact surface between the rubber skeleton and the connecting piece to improve the sealing effect.

[0004] The shortcomings of the above-mentioned prior art solution are: the above-mentioned solution can fix the valve plate through the first valve plate mounting hole and the second valve plate mounting hole, and the sealing protrusion effectively seals the contact surface between the rubber skeleton and the connecting piece to improve the sealing effect. However, the valve seat of the butterfly valve in the prior art is mostly fixed to the valve body by bonding. When the valve seat is aged or damaged, it is difficult to remove it, so the valve seat cannot be conveniently replaced. Here we provide a rubber valve seat that is easy to disassemble. Utility Model Content

[0005] The utility model aims to provide a rubber valve seat which is easy to disassemble, so as to solve the technical problem in the prior art that the valve seat of the butterfly valve in the prior art is mostly fixed to the valve body by bonding, and when the valve seat is aged or damaged, it is difficult to disassemble it, and the valve seat cannot be conveniently replaced.

[0006] The technical problem to be solved by the utility model can be achieved through the following technical solutions:

[0007] A rubber valve seat that is easy to disassemble, comprising a valve body; a valve hole is provided inside the valve body; a No. 2 flange is fixedly connected to the side end of the valve body; a No. 1 flange is installed on the side end of the No. 2 flange; a positioning bolt is installed on the side end of the No. 1 flange; a rubber seat is installed inside the valve body; a positioning groove is provided inside the rubber seat; and a rubber elastic ring is installed inside the positioning groove.

[0008] As a further solution of the utility model: multiple groups of No. 2 magnet sheets are fixedly connected inside the rubber seat; multiple groups of No. 1 magnet sheets are fixedly connected inside the valve body, and the No. 1 magnet sheets correspond to the No. 2 magnet sheets; a positioning snap ring is fixedly connected to the side end of the No. 1 flange; a positioning groove is opened inside the rubber seat, and the positioning groove corresponds to the positioning snap ring.

[0009] As a further solution of the utility model: a sealing rubber ring is fixedly connected to the interior of the valve body, and a rubber seat is installed below the sealing rubber ring.

[0010] As a further solution of the utility model: a positioning block is fixedly connected inside the sealing rubber ring; a positioning ring is fixedly connected inside the rubber seat, and a positioning block is provided on the top of the positioning ring.

[0011] As a further solution of the utility model: a disassembly hole is provided inside the rubber seat, and a thread is provided inside the disassembly hole.

[0012] As a further solution of the utility model: an encryption ring is fixedly connected to the interior of the valve body, and a rubber seat is installed below the encryption ring.

[0013] The beneficial effects of the utility model are as follows: the rubber seat needs to be replaced regularly after long-term use to ensure the operating performance of the valve body, and the positioning bolts are turned to separate the No. 1 flange and the No. 2 flange, which are connected and fixed by multiple sets of positioning bolts. The No. 1 flange can fix the rubber seat to the inside of the valve body. After the No. 1 flange is separated and disassembled from the No. 2 flange, the rubber elastic ring inside the positioning slot is removed, and the rubber seat can be pulled out of the inside of the valve body. The rubber seat and the valve body are not connected by glue, so the rubber seat can be directly pulled out, which is convenient for disassembly of the rubber seat, and subsequent replacement of the new rubber seat is also convenient for installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings.

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

[0016] Figure 2 This is a schematic diagram of the rubber seat structure in the utility model;

[0017] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This utility model Figure 2 Enlarged view of point B in the middle;

[0019] In the figure: 1. valve body; 2. valve hole; 3. No. 1 flange; 4. No. 2 flange; 5. positioning bolt; 6. rubber seat; 7. No. 1 magnet; 8. No. 2 magnet; 9. rubber elastic ring; 10. positioning slot; 11. disassembly hole; 12. positioning snap ring; 13. positioning slot; 14. sealing rubber ring; 15. positioning ring; 16. encryption ring. DETAILED DESCRIPTION

[0020] 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 of 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.

[0021] like Figure 1-Figure 4 As shown, a rubber valve seat that is easy to disassemble comprises a valve body 1; a valve hole 2 is provided inside the valve body 1; a No. 2 flange 4 is fixedly connected to the side end of the valve body 1; a No. 1 flange 3 is installed on the side end of the No. 2 flange 4; a positioning bolt 5 is installed on the side end of the No. 1 flange 3; a rubber seat 6 is installed inside the valve body 1; a positioning groove 10 is provided inside the rubber seat 6; a rubber elastic ring 9 is installed inside the positioning groove 10.

[0022] After long-term use, the rubber seat 6 needs to be replaced regularly to ensure the operating performance of the valve body 1. The positioning bolts 5 are turned to separate the No. 1 flange 3 and the No. 2 flange 4. The No. 1 flange 3 and the No. 2 flange 4 are connected and fixed by multiple sets of positioning bolts 5. The No. 1 flange 3 can fix the rubber seat 6 to the inside of the valve body 1. After the No. 1 flange 3 is separated and disassembled from the No. 2 flange 4, the rubber elastic ring 9 inside the positioning groove 10 is removed. The rubber elasticity of the rubber elastic ring 9 can expand the rubber seat 6, so that the rubber seat 6 will fit tightly with the inner wall of the valve body 1, and the position of the rubber seat 6 is fixed to the inside of the valve body 1 through the elasticity of the rubber elastic ring 9. After the rubber elastic ring 9 is removed from the inside of the positioning groove 10, the staff can pull the rubber seat 6 out of the inside of the valve body 1. The rubber seat 6 and the valve body 1 are not connected by glue, so the rubber seat 6 can be directly pulled out, which is convenient for disassembly operation of the rubber seat 6, and subsequent replacement of the new rubber seat 6 is also convenient for installation work.

[0023] The rubber seat 6 has multiple sets of No. 2 magnet sheets 8 fixedly connected to its interior; the valve body 1 has multiple sets of No. 1 magnet sheets 7 fixedly connected to its interior, and the No. 1 magnet sheets 7 correspond to the No. 2 magnet sheets 8; a positioning snap ring 12 is fixedly connected to the side end of the No. 1 flange 3; a positioning groove 13 is provided inside the rubber seat 6, and the positioning groove 13 corresponds to the positioning snap ring 12.

[0024] When the rubber seat 6 is installed inside the valve body 1, the No. 1 flange 3 needs to be installed to the side end of the No. 2 flange 4. At this time, the positioning snap ring 12 on the side end of the No. 1 flange 3 will be stuck to the inside of the positioning groove 13. The position of the rubber seat 6 can be limited by the positioning snap ring 12, thereby improving the fixity of the position of the rubber seat 6 and also limiting the sealing between the rubber seat 6 and the valve body 1. After the rubber seat 6 is installed inside the valve body 1, the No. 2 magnet sheet 8 is in contact with and fits with the No. 1 magnet sheet 7. The No. 2 magnet sheet 8 and the No. 1 magnet sheet 7 are adsorbed by magnetic attraction, thereby improving the fixity of the position of the rubber seat 6 and also improving the fitting density between the rubber seat 6 and the valve body 1. The rubber seat 6 can be disassembled by sliding.

[0025] A sealing rubber ring 14 is fixedly connected to the interior of the valve body 1 , and a rubber seat 6 is installed below the sealing rubber ring 14 .

[0026] After the rubber seat 6 is installed inside the valve body 1 , the sealing rubber ring 14 will contact the rubber seat 6 . The rubber material of the sealing rubber ring 14 can improve the sealing between the rubber seat 6 and the valve body 1 , thereby reducing leakage at the valve hole 2 .

[0027] A positioning block is fixedly connected inside the sealing rubber ring 14 ; a positioning ring 15 is fixedly connected inside the rubber seat 6 , and a positioning block is provided at the top of the positioning ring 15 .

[0028] When the rubber seat 6 is installed inside the valve body 1, the sealing rubber ring 14 will fit with the positioning ring 15, and the positioning ring 15 will absorb the positioning block inside the sealing rubber ring 14 through the magnetic attraction. The positioning ring 15 can improve the contact and fit between the sealing rubber ring 14 and the rubber seat 6, thereby improving the sealing between the sealing rubber ring 14 and the rubber seat 6 and reducing the leakage of the valve hole 2.

[0029] The rubber seat 6 has a disassembly hole 11 formed inside, and a thread is formed inside the disassembly hole 11.

[0030] The inside of the disassembly hole 11 is provided with a thread. When the rubber seat 6 needs to be disassembled, after the No. 1 flange 3 and the No. 2 flange 4 are separated and disassembled, the screw is rotated and inserted into the disassembly hole 11, and then the screw is pulled to drive the rubber seat 6 to slide together, thereby facilitating the disassembly operation of the rubber seat 6 and improving the convenience of disassembly of the rubber seat 6.

[0031] An encryption ring 16 is fixedly connected to the interior of the valve body 1, and a rubber seat 6 is installed below the encryption ring 16.

[0032] The encryption ring 16 is made of rubber material and has good elasticity. When the rubber seat 6 is installed inside the valve body 1, the encryption ring 16 will be in direct contact with the rubber seat 6. Through the elasticity of the encryption ring 16, it will fit tightly with the rubber seat 6, thereby improving the sealing between the rubber seat 6 and the valve body 1.

[0033] Working principle of the utility model: the rubber seat 6 needs to be replaced regularly after long-term use to ensure the operating performance of the valve body 1, and the positioning bolts 5 are rotated to separate the No. 1 flange 3 and the No. 2 flange 4. The No. 1 flange 3 and the No. 2 flange 4 are connected and fixed by multiple sets of positioning bolts 5. The No. 1 flange 3 can fix the rubber seat 6 to the inside of the valve body 1. After the No. 1 flange 3 is separated and disassembled from the No. 2 flange 4, the rubber elastic ring 9 inside the positioning groove 10 is disassembled. The rubber elasticity of the rubber elastic ring 9 can expand the rubber seat 6, so that the rubber seat 6 will fit tightly with the inner wall of the valve body 1, and the position of the rubber seat 6 is fixed to the inside of the valve body 1 by the elasticity of the rubber elastic ring 9. The rubber elastic ring 9 is removed from the positioning groove 10. 0, the staff can now pull the rubber seat 6 out of the valve body 1. The rubber seat 6 and the valve body 1 are not connected by glue, so the rubber seat 6 can be directly pulled out, which is convenient for the disassembly operation of the rubber seat 6, and the subsequent replacement of the new rubber seat 6 is also convenient for installation; the interior of the disassembly hole 11 is provided with a thread. When the rubber seat 6 needs to be disassembled, after the No. 1 flange 3 and the No. 2 flange 4 are separated and disassembled, the screw is rotated and inserted into the disassembly hole 11, and then the screw is pulled to drive the rubber seat 6 to slide together, thereby facilitating the disassembly operation of the rubber seat 6 and improving the convenience of disassembly of the rubber seat 6; when the rubber seat 6 is installed to the inside of the valve body 1, the No. 1 flange 3 needs to be installed to the side end of the No. 2 flange 4. When the rubber seat 6 is installed inside the valve body 1, the encryption ring 16 will be in direct contact with the rubber seat 6, and the elasticity of the encryption ring 16 will tightly fit the rubber seat 6, thereby improving the sealing between the rubber seat 6 and the valve body 1; after the rubber seat 6 is installed inside the valve body 1, the No. 2 magnet sheet 8 will be in contact with the No. 1 magnet sheet 7, and the No. 2 magnet sheet 8 and the No. 1 magnet sheet 7 will be adsorbed by the magnetic attraction, thereby improving the sealing of the rubber seat 6. The fixedness of the position of the seat 6 also improves the fitting density between the rubber seat 6 and the valve body 1, and the rubber seat 6 can be slid when it needs to be disassembled; after the rubber seat 6 is installed inside the valve body 1, the sealing rubber ring 14 will contact the rubber seat 6, and the rubber material of the sealing rubber ring 14 can improve the sealing between the rubber seat 6 and the valve body 1, and reduce the leakage at the valve hole 2; when the rubber seat 6 is installed inside the valve body 1, the sealing rubber ring 14 will fit with the positioning ring 15, and the positioning ring 15 will absorb the positioning block inside the sealing rubber ring 14 through the magnetic attraction, and the positioning ring 15 can improve the contact and fit between the sealing rubber ring 14 and the rubber seat 6, thereby improving the sealing between the sealing rubber ring 14 and the rubber seat 6 and reducing the leakage of the valve hole 2.

[0034] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A rubber valve seat that is easy to disassemble, characterized in that: The invention comprises a valve body (1); a valve hole (2) is provided inside the valve body (1); a second flange (4) is fixedly connected to the side end of the valve body (1); a first flange (3) is installed on the side end of the second flange (4); a positioning bolt (5) is installed on the side end of the first flange (3); a rubber seat (6) is installed inside the valve body (1); a positioning groove (10) is provided inside the rubber seat (6); and a rubber elastic ring (9) is installed inside the positioning groove (10).

2. The easily disassembled rubber valve seat according to claim 1, characterized in that: The rubber seat (6) is internally fixed with a plurality of groups of No. 2 magnet sheets (8); the valve body (1) is internally fixed with a plurality of groups of No. 1 magnet sheets (7), the No. 1 magnet sheets (7) corresponding to the No. 2 magnet sheets (8); a positioning snap ring (12) is fixedly connected to the side end of the No. 1 flange (3); a positioning groove (13) is provided inside the rubber seat (6), the positioning groove (13) corresponding to the positioning snap ring (12).

3. The easily disassembled rubber valve seat according to claim 1, characterized in that: A sealing rubber ring (14) is fixedly connected to the interior of the valve body (1), and a rubber seat (6) is installed below the sealing rubber ring (14).

4. The easily disassembled rubber valve seat according to claim 3, characterized in that: A positioning block is fixedly connected inside the sealing rubber ring (14); a positioning ring (15) is fixedly connected inside the rubber seat (6), and a positioning block is provided at the top end of the positioning ring (15).

5. The easily disassembled rubber valve seat according to claim 1, characterized in that: The rubber seat (6) is provided with a disassembly hole (11) inside, and the disassembly hole (11) is provided with a thread inside.

6. The easily disassembled rubber valve seat according to claim 1, characterized in that: An encryption ring (16) is fixedly connected to the interior of the valve body (1), and a rubber seat (6) is installed below the encryption ring (16).

Images