High-sealing ball valve easy to disassemble and assemble

Abstract

A lock catch mechanism is arranged between a first valve body and a second valve body, the lock catch mechanism plays a role in fixing the first valve body and the second valve body in a butt joint mode, a shielding cover is arranged on the outer side of the lock catch mechanism in a sleeved mode, the two ends of the shielding cover are arranged on the outer side of the first valve body and the outer side of the second valve body in a sleeved mode respectively, and the first valve body and the second valve body are fixedly connected. According to the utility model, the design structure is reasonable, the L-shaped stop block and the fixed stop block are respectively arranged on the first valve body and the second valve body, the L-shaped stop block and the fixed stop block are locked through the movable stop block after being buckled, and then the lock catch mechanism is shielded and protected through the shielding cover; the first valve body and the second valve body can be conveniently and subsequently disassembled and assembled, and the problems that an existing left valve body and an existing right valve body are mainly fixed through a plurality of bolts, the bolts are exposed to the outside, rusting is prone to occurring, and therefore the disassembling difficulty is increased, and the disassembling efficiency is reduced are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to ball valve technical field, concretely is a kind of high sealing easily disassembled ball valve. BACKGROUND

[0002] Ball valve is a kind of widely used valve type, by rotating valve stem to drive the ball body inside the valve with circular channel movement, to achieve the purpose of opening and closing channel, since the ball of ball valve will rotate and rub in valve body repeatedly, wear is usually more serious, therefore, often need to disassemble and maintain ball valve.

[0003] In the Chinese utility model patent with disclosure number CN216279512U discloses a kind of high sealing easily disassembled ball valve, by being provided with ball in one valve body, and the valve stem controllable is set in upper and lower, then another valve body is installed in the valve body by bolt connection, form valve housing by left and right valve body, it is convenient for subsequent disassembly, but left and right two valve bodies are mainly fixed by multiple bolts, not only need to be strictly bolt fastening requirement to be rotated one by one when disassembling and installing, and bolt position is exposed outside, rust is prone to appear in long time use, to increase the difficulty when disassembling, reduce the efficiency of disassembly. UTILITY MODEL CONTENT

[0004] The utility model aims at making up for the deficiency of prior art, provide a kind of high sealing easily disassembled ball valve.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A kind of high sealing easily disassembled ball valve, including first valve body and second valve body, the first valve body is set on the side of the second valve body, ball is provided between the first valve body and second valve body, the top of the ball is provided with valve stem, the valve stem top is connected with second valve body and extends to outside, the first valve body and the second valve body with the ball between still be provided with valve seat seal;

[0007] Locking mechanism is provided between the first valve body and the second valve body, the locking mechanism plays the role of butt joint fixation of the first valve body and the second valve body, the outside of the locking mechanism is provided with shielding cover, the both ends of the shielding cover are respectively set on the outside of the first valve body and the second valve body, the locking mechanism is closed and protected by the shielding cover;

[0008] The locking mechanism includes a plurality of fixed blocks and a plurality of L-shaped blocks, a plurality of fixed blocks are arranged in a ring array on the outside of the second valve body, and a gap channel is formed between adjacent two fixed blocks.

[0009] A plurality of L-shaped blocks are arranged in an annular array on one side of the first valve body, and a plurality of the L-shaped blocks are respectively in sliding connection with the corresponding slit channels, so that a plurality of the L-shaped blocks are respectively buckled with a plurality of the fixed blocks;

[0010] The outer side of the second valve body is provided with a plurality of movable blocks that can slide, and a plurality of the movable blocks are respectively inserted into the corresponding slit channels, thereby playing a role in limiting the L-shaped blocks;

[0011] The first valve body and the second valve body are provided with a sealing mechanism therebetween, thereby playing a role in sealing between the first valve body and the second valve body.

[0012] Further, the L-shaped block is composed of a first block and a second block, one end of the second block is connected to one side of the first valve body, and the first block and the second block are connected in vertical distribution.

[0013] Further, the first block and the second block are annularly distributed around the axis of the first valve body, and the distance between the first block and the second block and the axis of the first valve body is the same;

[0014] The width of the first block is twice the width of the second block, the width of the fixed block is the same as the width of the second block, and the sum of the width of the second block and the width of the movable block is the same as the width of the slit channel.

[0015] Further, the first block and the second block are annularly distributed around the axis of the first valve body, and the minimum distance between the first block and the axis is less than the minimum distance between the second block and the axis;

[0016] The sum of the height of the fixed block and the height of the second block is the same as the height of the first block, and the width of the first block, the second block, the movable block and the slit channel is the same.

[0017] Further, a moving assembly is arranged between the outer side of the second valve body and the movable block, and the moving assembly drives the movable block to move;

[0018] The moving assembly comprises a threaded groove opened on the second valve body, a threaded sleeve ring is threadedly connected to the inner wall of the threaded groove, a rotating ring is rotatably connected to one side of the threaded sleeve ring, and a plurality of the movable blocks are annularly connected to one side of the rotating ring.

[0019] Further, a clamping groove is arranged at the opening of the threaded groove;

[0020] One side of the shielding cover is provided with a lip plate, and one side of the lip plate is clamped with the clamping groove;

[0021] The outer fixed sleeve of the first valve body is provided with a fixing ring, and the inner portion of the shielding cover is sleeved on the outer side of the fixing ring.

[0022] Furthermore, the sealing mechanism includes a first sealing assembly and a third sealing ring, one side of the first sealing assembly is connected to one side of the first valve body, and the other side of the first sealing assembly is plugged into the second valve body;

[0023] The third sealing ring is sleeved on one side of the second valve body, and the other side of the third sealing ring is in contact with the first valve body.

[0024] Furthermore, a sealing groove is provided at a corner of the connection surface between the second valve body and the first valve body;

[0025] The cross-sectional shape of the third sealing ring is V-shaped. The third sealing ring is in the sealing groove. The shape of the sealing groove matches the shape of the third sealing ring. The top corner of the third sealing ring contacts the inner corner of the first valve body.

[0026] Furthermore, a slot is provided on one side of the second valve body;

[0027] A plug ring is connected to one side of the first valve body, one side of the plug ring is plugged into the interior of the slot, and first sealing rings are provided on both the inner and outer walls of the plug ring, with the sides of the two first sealing rings away from the plug ring contacting the inner wall of the slot;

[0028] The side of the insert ring away from the first valve body is an arcuate surface. A second sealing ring is provided on one side of the arcuate surface of the insert ring. One side of the second sealing ring contacts the inner wall of the slot.

[0029] Compared with the existing technology, the high-sealing and easy-to-disassemble ball valve has the following beneficial effects:

[0030] 1. The utility model provides an L-shaped stopper and a fixed stopper on the first valve body and the second valve body respectively, and after the L-shaped stopper and the fixed stopper are buckled, they are locked by a movable stopper, and then the locking mechanism is shielded and protected by a shielding cover, which facilitates the subsequent disassembly and installation of the first valve body and the second valve body, and solves the problem that the left and right valve bodies are mainly fixed by multiple bolts, and the bolts are exposed to the outside and are prone to rust, thereby increasing the difficulty of disassembly and reducing the efficiency of disassembly.

[0031] Secondly, the utility model discloses the first valve body and the second valve body between the butt joint face gap bending of convenient through being provided with the slot on the second valve body and being provided with the insert ring on the first valve body, and the first sealing ring, the second sealing ring and the third sealing ring are arranged respectively at the butt joint of the first valve body and the second valve body, and the sealing effect between the first valve body and the second valve body is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0033] Figure 2 It is the sectional view of the first valve body in the utility model;

[0034] Figure 3 It is the sectional view of the second valve body in the utility model;

[0035] Figure 4 It is the local partial exploded schematic diagram in the utility model;

[0036] Figure 5 It is the three-dimensional structure schematic diagram of the second valve body of the utility model.

[0037] In the drawing: 1, the first valve body;2, the second valve body;3, valve stem;4, ball;5, valve seat seal;6, insert ring;7, first sealing ring;8, second sealing ring;9, moving stopper;10, rotating ring;11, threaded sleeve ring;12, shield cover;13, fixed stopper;14, fixed ring;15, threaded groove;16, L-shaped stopper;17, clamping groove;18, third sealing ring. DETAILED DESCRIPTION

[0038] The technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by the person skilled in the art without creative work are within the protection scope of the present application.

[0039] As Figures 1-5The utility model provides a technical scheme: a kind of high sealing easily disassembled ball valve, including first valve body 1 and second valve body 2, first valve body 1 is set on the side of second valve body 2, ball 4 is provided between first valve body 1 and second valve body 2, the top of ball 4 is provided with valve stem 3, and valve stem 3 top is connected with second valve body 2 and extends to outside, first valve body 1 and second valve body 2 with ball 4 between still be provided with valve seat seal 5;Locking mechanism is provided between first valve body 1 and second valve body 2, and locking mechanism plays the role of butt joint fixation of first valve body 1 and second valve body 2;Locking mechanism is equipped with shielding cover 12 outside, and both ends of shielding cover 12 are equipped with the outside of first valve body 1 and second valve body 2 respectively, and locking mechanism is closed protection by shielding cover 12;Locking mechanism includes several fixed stops 13 and several L-shaped stops 16, and several fixed stops 13 are annular array distribution in the outside of second valve body 2, and gap channel is formed between adjacent two fixed stops 13;Several L-shaped stops 16 are annular array distribution on the side of first valve body 1, and several L-shaped stops 16 are slidably connected with corresponding gap channel respectively, so that several L-shaped stops 16 are respectively buckled with several fixed stops 13;The outside of second valve body 2 is provided with several movable stops 9 that can slide, and several movable stops 9 are respectively inserted with corresponding gap channel, to play the role of L-shaped stop 16 limitation;Sealing mechanism is provided between first valve body 1 and second valve body 2, to play the role of sealing between first valve body 1 and second valve body 2.

[0040] In use, by the buckling of several L-shaped stops 16 and fixed stops 13, the action load of the pulling effect of the two sides of first valve body 1 and second valve body 2 is applied to several L-shaped stops 16 and fixed stops 13, while several L-shaped stops 16 and first valve body 1 are integrated structure, and fixed stops 13 and second valve body 2 are integrated structure, then the rotating movement of L-shaped stop 16 is locked by movable stop 9, to form a occlusal annular structure, improve the tensile load of first valve body 1 and second valve body 2, then the components of locking mechanism are closed by shielding cover 12, to play the role of isolation outside, so as to remove movable stop 9, then first valve body 1 and second valve body 2 are quickly disassembled.

[0041] The L-shaped block 16 is composed of a first block and a second block, one end of the second block is connected to one side of the first valve body 1, and the first block and the second block are connected in vertical distribution; the first block and the second block are annularly distributed around the axis of the first valve body 1, and the distance between the first block and the axis and the distance between the second block and the axis are the same; the width of the first block is twice the width of the second block, the width of the fixed block 13 is the same as the width of the second block, and the sum of the width of the second block and the width of the moving block 9 is the same as the width of the gap channel; in use, the first block, the second block, the fixed block 13 and the moving block 9 are all arc-shaped, so as to closely contact when rotating and buckling, the first block is first moved through the gap channel to the other side of the fixed block 13, then a certain angle is rotated, the L-shaped block 16 is buckled outside the fixed block 13, then the moving block 9 is inserted into the remaining space in the gap channel, and the moving block 9 and the second block fill the gap channel, so as to avoid the rotation of the L-shaped block 16, and then the first valve body 1 and the second valve body 2 are assembled.

[0042] The L-shaped block 16 is composed of a first block and a second block, one end of the second block is connected to one side of the first valve body 1, and the first block and the second block are connected in vertical distribution; the first block and the second block are annularly distributed around the axis of the first valve body 1, and the distance between the first block and the axis and the distance between the second block and the axis are the same; the width of the first block is twice the width of the second block, the width of the fixed block 13 is the same as the width of the second block, and the sum of the width of the second block and the width of the moving block 9 is the same as the width of the gap channel; in use, the first block, the second block, the fixed block 13 and the moving block 9 are all arc-shaped, so as to closely contact when rotating and buckling, the first block is first moved through the gap channel to the other side of the fixed block 13, then a certain angle is rotated, the L-shaped block 16 is buckled outside the fixed block 13, then the moving block 9 is inserted into the remaining space in the gap channel, and the moving block 9 and the second block fill the gap channel, so as to avoid the rotation of the L-shaped block 16, and then the first valve body 1 and the second valve body 2 are assembled.

[0043] The moving assembly is arranged between the outer side of the second valve body 2 and the moving block 9, and the moving block 9 is driven to move through the moving assembly; the moving assembly comprises a threaded groove 15 opened on the second valve body 2, a threaded sleeve ring 11 threadedly connected to the inner wall of the threaded groove 15, a rotating ring 10 rotatably connected to one side of the threaded sleeve ring 11, and a plurality of moving blocks 9 annularly arranged on one side of the rotating ring 10; a clamping groove 17 is arranged at the opening of the threaded groove 15; a lip plate is arranged on one side of the shielding cover 12, and one side of the lip plate is clamped with the clamping groove 17; a fixed ring 14 is fixedly sleeved on the outer side of the first valve body 1, and the shielding cover 12 is sleeved on the outer side of the fixed ring 14.

[0044] In use, the outer curved surface of the fixed ring 14 is coplanar with the outer curved surface formed by the plurality of L-shaped blocks 16, and the fixed ring 14 extends towards the flange connection direction of the first valve body 1, the cover 12 is annular, and both the cover 12 and the lip plate are made of hard rubber material. The lip plate is inserted into the clamping groove 17, and then the cover 12 is positioned, so that one side of the cover 12 tightly abuts against the surface of the second valve body 2, and the other side is in close contact with the fixed ring 14, thereby closing the threaded groove 15 to protect the internal threads. At the same time, the clamping groove 17 is provided to facilitate the rotation of the threaded sleeve ring 11. The outer surface of the threaded sleeve ring 11 is provided with a wave groove for increasing the friction of the surface of the threaded sleeve ring 11, facilitating the control of the rotation of the threaded sleeve ring 11. At the same time, when the threaded sleeve ring 11 rotates to the area inside the second valve body 2, the clamping groove 17 facilitates the continued stirring of the threaded sleeve ring 11, so as to facilitate the control.

[0045] The sealing mechanism includes a first sealing assembly and a third sealing ring 18. One side of the first sealing assembly is connected to one side of the first valve body 1, and the other side of the first sealing assembly is inserted into the second valve body 2. The third sealing ring 18 is sleeved on one side of the second valve body 2, and the other side of the third sealing ring 18 is in contact with the first valve body 1. The corner of the connection surface of the second valve body 2 and the first valve body 1 is provided with a sealing groove. The cross-sectional shape of the third sealing ring 18 is V-shaped. The third sealing ring 18 is in the sealing groove, and the shape of the sealing groove matches the shape of the third sealing ring 18. The top corner of the third sealing ring 18 is in contact with the female corner of the first valve body 1. In use, the V-shaped third sealing ring 18 is arranged at the corner, which improves the sealing contact surface between the second valve body 2 and the first valve body 1. The second valve body 2 and the first valve body 1 are pressed in the front and inclined directions, which improves the sealing effect between the first valve body 1 and the second valve body 2.

[0046] One side of the second valve body 2 is provided with a slot. One side of the first valve body 1 is connected with a plug ring 6. One side of the plug ring 6 is inserted into the slot. The inner and outer side walls of the plug ring 6 are provided with first sealing rings 7. The two first sealing rings 7 away from the plug ring 6 are in contact with the inner wall of the slot. The side away from the first valve body 1 of the plug ring 6 is arc-shaped. One side of the arc-shaped surface of the plug ring 6 is provided with a second sealing ring 8. One side of the second sealing ring 8 is in contact with the inner wall of the slot. In use, the first sealing ring 7 and the third sealing ring 18 are both rubber sealing rings, and the second sealing ring 8 is a rubber sealing ring. The inner part of the slot is arc-shaped and matches the arc-shaped surface of the plug ring 6. The plug ring 6 and the first valve body 1 are fixedly connected or integrated, so that the joint gap between the first valve body 1 and the second valve body 2 is complete, and then the first sealing ring 7, the second sealing ring 8 and the third sealing ring 18 are sealed, which improves the sealing effect between the first valve body 1 and the second valve body 2.

[0047] Firstly, the second valve body 2, valve stem 3 and ball 4, and valve seat seal 5 are installed using existing technology, then another valve seat seal 5 is installed inside the first valve body 1, then two first seal rings 7 and one second seal ring 8 are respectively installed on the insertion ring 6, and the third seal ring 18 is installed on the second valve body 2, then the insertion ring 6 on one side of the first valve body 1 is inserted into the insertion groove on one side of the second valve body 2 along the insertion groove, and the L-shaped block 16 on the first valve body 1 passes through the gap between the two fixed blocks 13, after one L-shaped side of the L-shaped block 16 passes through, the insertion ring 6 is completely inserted into the insertion groove, then the first valve body 1 is rotated, the L-shaped inner corner of the L-shaped block 16 is buckled on the fixed block 13, then the moving block 9 is kept aligned with the gap between the fixed blocks 13 on the back side of the L-shaped block 16, the threaded sleeve 11 is rotated, the threaded sleeve 11 moves on the threaded groove 15, and the moving block 9 is inserted into the aligned gap by rotating the rotating ring 10 to push the moving block 9, the L-shaped block 16 is locked, and the plurality of fixed blocks 13, the plurality of moving blocks 9 and the plurality of L-shaped blocks 16 form a complete ring, the rotation of the first valve body 1 is limited by the moving block 9, the separation of the first valve body 1 and the second valve body 2 is limited by the fixed block 13, and the load of the first valve body 1 and the second valve body 2 is borne by the fixed block 13, and the sliding cover 12 is slid to cover the opening of the threaded groove 15 and is inserted into the clamping groove 17 by the lip plate, so that the threaded groove 15 is completely covered and sealed, avoiding the entry of external rainwater, reducing the corrosion of the threads outside, and facilitating the rotation and disassembly;

[0048] After the first valve body 1 and the second valve body 2 are connected, the gap between the first valve body 1 and the second valve body 2 is bent by the insertion ring 6 and the insertion groove, and the insertion ring 6 and the insertion groove are kept sealed by the first seal ring 7 and the second seal ring 8, and the third seal ring 18 in the form of V is arranged at the corner of the second valve body 2, which further improves the sealing effect between the second valve body 2 and the first valve body 1, and avoids leakage of the valve.

Claims

1. A highly sealed and easily disassembled ball valve, comprising a first valve body (1) and a second valve body (2), wherein the first valve body (1) is sleeved on one side of the second valve body (2), a sphere (4) is provided between the first valve body (1) and the second valve body (2), a valve stem (3) is provided on the top of the sphere (4), the top of the valve stem (3) is connected to the second valve body (2) and extends to the outside, and a valve seat seal (5) is further provided between the first valve body (1), the second valve body (2) and the sphere (4); characterized in that: A locking mechanism is provided between the first valve body (1) and the second valve body (2), and the locking mechanism serves to dock and fix the first valve body (1) and the second valve body (2). A shielding cover (12) is provided on the outer side of the locking mechanism, and the two ends of the shielding cover (12) are respectively sleeved on the outer sides of the first valve body (1) and the second valve body (2), and the locking mechanism is sealed and protected by the shielding cover (12); The locking mechanism comprises a plurality of fixed blocks (13) and a plurality of L-shaped blocks (16), wherein the plurality of fixed blocks (13) are distributed in an annular array on the outside of the second valve body (2), and a gap channel is formed between two adjacent fixed blocks (13); The plurality of L-shaped stoppers (16) are distributed in an annular array on a side of the first valve body (1) close to the second valve body (2), and the plurality of L-shaped stoppers (16) are respectively slidably connected to the corresponding slit channels, so that the plurality of L-shaped stoppers (16) are respectively engaged with the plurality of fixed stoppers (13); A plurality of slidable movable blocks (9) are provided on the outer side of the second valve body (2), and the plurality of movable blocks (9) are respectively plugged into the corresponding slit channels to limit the L-shaped block (16); A sealing mechanism is provided between the first valve body (1) and the second valve body (2), which plays a role in sealing between the first valve body (1) and the second valve body (2).

2. The high-sealing and easily disassembled ball valve according to claim 1, characterized in that: The L-shaped stopper (16) consists of a first stopper and a second stopper, one end of the second stopper is connected to one side of the first valve body (1), and the first stopper and the second stopper are vertically connected.

3. The high-sealing and easily disassembled ball valve according to claim 2, characterized in that: The first stopper and the second stopper are distributed in an annular manner around the axis of the first valve body (1), and the distances between the first stopper and the second stopper and the axis of the first valve body (1) are the same; The width of the first stopper is twice that of the second stopper, the width of the fixed stopper (13) is the same as that of the second stopper, and the sum of the width of the second stopper and the width of the movable stopper (9) is the same as the width of the slit channel.

4. The high-sealing and easily disassembled ball valve according to claim 2, characterized in that: The first stopper and the second stopper are distributed in an annular manner around the axis of the first valve body (1), and the minimum distance between the first stopper and the axis is smaller than the minimum distance between the second stopper and the axis; The sum of the height of the fixed stopper (13) and the height of the second stopper is the same as the height of the first stopper, and the widths of the first stopper, the second stopper, the movable stopper (9) and the slit channel are all the same.

5. The high-sealing and easily disassembled ball valve according to claim 1, characterized in that: A moving assembly is provided between the outer side of the second valve body (2) and the moving stopper (9), and the moving stopper (9) is driven to move by the moving assembly; The moving assembly comprises a threaded groove (15) formed on the second valve body (2); the inner wall of the threaded groove (15) is threadedly connected to a threaded collar (11); one side of the threaded collar (11) is rotatably connected to a rotating ring (10); and a plurality of moving blocks (9) are connected to one side of the rotating ring (10) in an annular array.

6. The high-sealing and easily disassembled ball valve according to claim 5, characterized in that: A clamping groove (17) is provided at the opening of the thread groove (15); A lip plate is provided on one side of the shielding cover (12), and one side of the lip plate is engaged with the clamping slot (17); The outer fixed sleeve of the first valve body (1) is provided with a fixing ring (14), and the interior of the shielding cover (12) is sleeved on the outer side of the fixing ring (14).

7. The high-sealing and easily disassembled ball valve according to claim 1, characterized in that: The sealing mechanism comprises a first sealing component and a third sealing ring (18), one side of the first sealing component is connected to one side of the first valve body (1), and the other side of the first sealing component is plugged into the second valve body (2); The third sealing ring (18) is sleeved on one side of the second valve body (2), and the other side of the third sealing ring (18) is in contact with the first valve body (1).

8. The high-sealing and easily disassembled ball valve according to claim 7, characterized in that: A sealing groove is provided at the corner of the connection surface between the second valve body (2) and the first valve body (1); The cross-sectional shape of the third sealing ring (18) is V-shaped. The third sealing ring (18) is in the sealing groove. The shape of the sealing groove matches the shape of the third sealing ring (18). The top corner of the third sealing ring (18) contacts the inner corner of the first valve body (1).

9. The high-sealing and easily disassembled ball valve according to claim 8, characterized in that: A slot is provided on one side of the second valve body (2); A plug ring (6) is connected to one side of the first valve body (1), one side of the plug ring (6) is plugged into the interior of the slot, and first sealing rings (7) are provided on both the inner and outer walls of the plug ring (6), and the sides of the two first sealing rings (7) away from the plug ring (6) are in contact with the inner wall of the slot; The side of the insert ring (6) away from the first valve body (1) is an arcuate surface, and a second sealing ring (8) is provided on one side of the arcuate surface of the insert ring (6), and one side of the second sealing ring (8) contacts the inner wall of the slot.

Images