Loose joint ball valve with loose joint pipe capable of being quickly disassembled and assembled

Abstract

The loose joint ball valve comprises a valve body and the loose joint pipe, the valve body is provided with a loose joint port, a tightening convex ring is formed on the peripheral side face of the loose joint pipe, and the loose joint pipe is sleeved with a tightening ring. A tightening part opposite to the tightening convex ring is formed at the end of the tightening ring, a plurality of locking swing arms in an annular array are arranged on the inner wall of the tightening ring, one ends of the locking swing arms are hinged to the tightening ring, locking protrusions are formed at the other ends of the locking swing arms, and locking springs are arranged between the free ends of the locking swing arms and the inner wall of the tightening convex ring. A locking groove matched with the locking protrusion is formed in the circumferential side face of the loose joint port, the tightening ring is inserted outside the loose joint port, the locking protrusion is clamped into the locking groove under the action of the locking spring, the tightening portion abuts against the tightening protruding ring, and the end face of the loose joint pipe abuts against the end face of the loose joint port. According to the loose joint ball valve with the loose joint pipe capable of being rapidly disassembled and assembled, the loose joint pipe and the valve body can be rapidly disassembled and assembled, operation is convenient, and connection between the loose joint pipe and the valve body is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valves, in particular to a union ball valve with a union pipe that can be quickly disassembled and assembled. Background Art

[0002] A union ball valve is a valve body that facilitates the disassembly and assembly of a ball valve through a union pipe that can be detachably connected to the valve body. Its main structure consists of a valve body with a union port and a union pipe detachably connected to the union port. In the prior art, the union pipe is generally connected to the union port through a tightening nut. When disassembling and assembling the union pipe, it is achieved by tightening or loosening the tightening nut. However, in this structure, when the pipe layout is relatively compact and the space between adjacent pipes is small, the operation is rather laborious. Moreover, the tightening nut may become loose due to the influence of pipe resonance, affecting the stability and sealing performance of the connection between the union pipe and the valve body.

[0003] In view of the above problems, the utility model is improved. Summary of the Utility Model

[0004] The utility model provides a union ball valve with a union pipe that can be quickly disassembled and assembled, solving the above problems existing in the prior art during use.

[0005] The technical solution of the utility model is realized as follows:

[0006] A union ball valve with a union pipe that can be quickly disassembled and assembled includes a valve body and a union pipe. The valve body has a union port. A tightening convex ring is formed on the circumferential side of the union pipe. A tightening ring is sleeved on the union pipe. A tightening part opposite to the tightening convex ring is formed at the end of the tightening ring, and several circumferentially arrayed locking swing arms are arranged on the inner wall of the tightening ring. One end of each locking swing arm is hinged to the tightening ring, and the other end forms a locking protrusion. A locking spring is arranged between the free end of the locking swing arm and the inner wall of the tightening convex ring. A locking groove matching the locking protrusion is formed on the circumferential side of the union port. The tightening ring is inserted outside the union port. The locking protrusion is clamped into the locking groove under the action of the locking spring, so that the tightening part tightly abuts against the tightening convex ring, and the end face of the union pipe abuts against the end face of the union port.

[0007] Preferably, both the locking protrusion and the locking groove are in the shape of a truncated pyramid. An operation hole opposite to the hinged end of the locking swing arm is formed on the tightening ring.

[0008] Preferably, an operation rod passing through the operation hole is formed at the hinged end of the locking swing arm.

[0009] Preferably, an operation ring that can slide axially along the tightening ring is sleeved on the tightening ring, and an operation inclined surface facing the end of the operation rod is formed on the inner wall of the operation ring.

[0010] Preferably, a return spring is sleeved on the clamping ring and is located between the end face of the operating ring and the clamping ring.

[0011] Preferably, a plurality of first guiding planes corresponding to the locking swing arms one by one are formed on the inner wall of the clamping ring. Swing grooves are formed on the first guiding planes, the locking swing arms are arranged in the swing grooves, a plurality of second guiding planes corresponding to the first guiding planes one by one and in contact with the first guiding surfaces are formed on the circumferential side surface of the union port, and the locking grooves are formed on the second guiding planes.

[0012] Preferably, a plurality of limiting protrusions are formed on the surface of the clamping part facing the clamping convex ring, a plurality of limiting grooves corresponding to and matching the limiting protrusions one by one are formed on the surface of the clamping convex ring facing the clamping part, and the limiting protrusions are clamped into the limiting grooves.

[0013] In summary, the beneficial effects of the present utility model are as follows: The cooperation between the locking protrusion and the locking groove limits the axial sliding of the clamping ring relative to the valve body, so as to realize the connection between the union pipe and the valve body. By swinging the locking swing arm, the locking protrusion is separated from the locking groove, and the limit on the axial sliding of the clamping ring relative to the valve body is released, so as to realize the disassembly and separation of the union pipe and the valve body. The disassembly and assembly of the union pipe and the valve body are very convenient, and fast disassembly and assembly can be realized, thus facilitating the use of the ball valve. Moreover, the limit on the clamping ring realized by the locking protrusion and the locking groove can maintain a very stable limiting effect on the clamping ring when the union pipe is affected by pipeline resonance, thereby ensuring the firmness and sealing performance of the connection between the union pipe and the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 is a schematic cross-sectional view of the present utility model;

[0016] Figure 2 is Figure 1 an enlarged schematic view of part A in

[0017] Figure 3 is an exploded schematic view of the connection part between the union port and the union pipe in the present utility model;

[0018] Figure 4 is a schematic structural view of the clamping ring in the present utility model.

[0019] In the figure: 1. Valve body; 11. Union port; 12. Locking groove; 13. Second guiding plane; 2. Union pipe; 21. Clamping convex ring; 22. Limit groove; 3. Clamping ring; 31. Clamping part; 32. Operation hole; 33. First guiding plane; 34. Swing groove; 35. Limit projection; 4. Locking swing arm; 41. Locking projection; 42. Operating rod; 5. Locking spring; 6. Operating ring; 61. Operating inclined plane; 7. Return spring. Detailed implementation mode

[0020] Next, in combination with the attached drawings in the embodiments of the present invention Figures 1-4 , the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0021] As shown in the figure, a union ball valve with a union pipe 2 that can be quickly disassembled and assembled includes a valve body 1 and a union pipe 2. The valve body 1 has a union port 11. A clamping convex ring 21 is formed on the circumferential side of the union pipe 2. A clamping ring 3 is sleeved on the union pipe 2. A clamping part 31 opposite to the clamping convex ring 21 is formed at the end of the clamping ring 3, and a plurality of locking swing arms 4 arranged in a circular array are provided on the inner wall of the clamping ring 3. One end of the locking swing arm is hinged to the clamping ring 3, and the other end forms a locking projection 41. A locking spring 5 is arranged between the free end of the locking swing arm 4 and the inner wall of the clamping convex ring 21. A locking groove 12 matching the locking projection 41 is opened on the circumferential side of the union port 11. The clamping ring 3 is inserted outside the union port 11. The locking projection 41 is clamped into the locking groove 12 under the action of the locking spring 5, so that the clamping part 31 tightly abuts against the clamping convex ring 21, and the end face of the union pipe 2 abuts against the end face of the union port 11.

[0022] Specifically, both the locking projection 41 and the locking groove 12 are in the shape of a truncated pyramid, and an operation hole 32 opposite to the hinged end of the locking swing arm 4 is opened on the clamping ring 3.

[0023] Specifically, an operating rod 42 passing through the operation hole 32 is formed at the hinged end of the locking swing arm 4.

[0024] Specifically, an operating ring 6 that can slide axially along the clamping ring 3 is sleeved on the clamping ring 3. An operating inclined plane 61 facing the end of the operating rod 42 is formed on the inner wall of the operating ring 6.

[0025] In the above embodiment, when the union pipe 2 is installed on the valve body 1, the clamping ring 3 is aligned with the union port 11 and sleeved on the union port 11. During the process of the clamping ring 3 being sleeved on the union port 11, the locking protrusion 41 abuts against the circumferential side surface of the union port 11 and pushes the free end of the locking swing arm 4 to swing upward, compressing the locking spring 5, so that the locking protrusion 41 slides along the circumferential side surface of the union port 11. When the locking protrusion 41 slides to the position of the locking groove 12, the locking protrusion 41 is snapped into the locking groove 12 under the action of the locking spring 5. The axial limit is applied to the clamping ring 3 through the cooperation of the locking protrusion 41 and the locking groove 12, so that the clamping portion 31 tightly abuts against the clamping convex ring 21, and the end surface of the union pipe 2 tightly abuts against the end surface of the union port 11, realizing the fixed connection between the union pipe 2 and the valve body 1. When the union pipe 2 is removed from the valve body 1, the operation ring 6 is slid. During the sliding process of the operation ring 6, the operation inclined surface 61 abuts against the end of the operating rod 42 and pushes the operating rod 42 to swing inward, thereby driving the free end of the locking swing arm 4 to swing upward and making the locking protrusion 41 leave the locking groove 12. At this time, the clamping ring 3 can be removed from the union port 11, realizing the disassembly of the union pipe 2. The disassembly and assembly process of the above-mentioned union pipe 2 is very convenient, enabling the union pipe 2 to be quickly disassembled and assembled with the valve body 1, facilitating the use of the ball valve. Moreover, the limit on the clamping ring 3 achieved by the locking protrusion 41 and the locking groove 12 can maintain a very stable limiting effect on the clamping ring 3 when the union pipe 2 is affected by pipeline resonance, thus ensuring the stability and sealing performance of the connection between the union pipe 2 and the valve body 1. When disassembling the union pipe 2, the synchronous swing of multiple locking swing arms 4 can be realized by pushing the operating rod 42 through the operation ring 6, facilitating the operation when disassembling the union pipe 2.

[0026] Preferably, a return spring 7 is sleeved on the clamping ring 3 and is located between the end surface of the operation ring 6 and the clamping ring 3. The operation ring 6 slides on the clamping ring 3 under the action of the return spring 7, so that the operation inclined surface 61 is away from the operating rod 42, preventing the operation ring 6 from sliding towards the operating rod 42 due to misoperation and pushing the locking swing arm 4 to swing, thereby strengthening the stability and sealing performance when the union pipe 2 is connected to the valve body 1.

[0027] Preferably, a plurality of first guiding planes 33 corresponding to the locking swing arms 4 one by one are formed on the inner wall of the clamping ring 3. Swing grooves 34 are formed in the first guiding planes 33. The locking swing arms 4 are arranged in the swing grooves 34. A plurality of second guiding planes 13 corresponding to the first guiding planes 33 one by one and contacting the first guiding surfaces are formed on the circumferential side surface of the socket end 11. The locking grooves 12 are formed in the second guiding planes 13. When the clamping ring 3 slides on the circumferential side surface of the socket end 11, the first guiding plane 33 and the second guiding plane 13 keep contacting, which plays a guiding role for the sliding of the union pipe 2 on the socket end 11 and applies a limit to the rotation of the clamping ring 3 on the socket end 11, so as to ensure that the locking protrusions 41 can accurately snap into the locking grooves 12, further facilitating the disassembly and assembly operations of the union pipe 2 and the valve body 1.

[0028] Preferably, a plurality of limiting protrusions 35 are formed on the surface of the clamping portion 31 facing the clamping convex ring 21. A plurality of limiting grooves 22 corresponding to and matching the limiting protrusions 35 one by one are formed on the surface of the clamping convex ring 21 facing the clamping portion 31. The limiting protrusions 35 snap into the limiting grooves 22. The cooperation of the limiting protrusions 35 and the limiting grooves 22 applies a limit to the relative rotation of the union pipe 2 and the clamping ring 3, that is, applies a limit to the rotation of the union pipe 2 relative to the valve body 1, thereby strengthening the stability when the union pipe 2 is connected to the valve body 1.

[0029] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A flexible ball valve with a quickly disassembled flexible pipe, comprising a valve body (1) and a flexible pipe (2), wherein the valve body (1) has a flexible port (11), and a tightening convex ring (21) is formed on the side surface of the flexible pipe (2), characterized in that: The flexible pipe (2) is sleeved with a tightening ring (3), the end of the tightening ring (3) is formed with a tightening portion (31) opposite to the tightening convex ring (21), and the inner wall of the tightening ring (3) is provided with a plurality of locking swing arms (4) in an annular array, one end of the locking swing arm is hinged to the tightening ring (3), the other end is formed with a locking protrusion (41), and a locking protrusion (41) is provided between the free end of the locking swing arm (4) and the inner wall of the tightening convex ring (21). The spring (5) is provided on the side surface of the movable port (11), and a locking groove (12) matching the locking protrusion (41) is formed. The tightening ring (3) is inserted outside the movable port (11). The locking protrusion (41) is inserted into the locking groove (12) under the action of the locking spring (5), so that the tightening portion (31) is tightly against the tightening protrusion ring (21), so that the end face of the movable tube (2) is pressed against the end face of the movable port (11).

2. The movable ball valve with a movable joint capable of rapid assembly and disassembly according to claim 1 is characterized in that: The locking protrusion (41) and the locking groove (12) are both of a ditch-blocking type, and the tightening ring (3) is provided with an operating hole (32) opposite to the hinged end of the locking swing arm (4).

3. The movable ball valve with a quickly disassembled movable joint according to claim 2 is characterized in that: An operating rod (42) passing through the operating hole (32) is formed at the hinged end of the locking swing arm (4).

4. The movable ball valve with a movable joint capable of rapid assembly and disassembly according to claim 3 is characterized in that: An operating ring (6) is sleeved on the tightening ring (3) and is slidable along the axial direction of the tightening ring (3). An operating inclined surface (61) facing the end of the operating rod (42) is formed on the inner wall of the operating ring (6).

5. The movable ball valve with a movable joint capable of rapid assembly and disassembly according to claim 4 is characterized in that: The tightening ring (3) is sleeved with a return spring (7) located between the end surface of the operating ring (6) and the tightening ring (3).

6. The movable ball valve with a movable joint capable of rapid assembly and disassembly according to claim 5 is characterized in that: A plurality of first guide planes (33) corresponding one-to-one with the locking swing arms (4) are formed on the inner wall of the tightening ring (3), a swing groove (34) is provided on the first guide plane (33), the locking swing arm (4) is arranged in the swing groove (34), a plurality of second guide planes (13) corresponding one-to-one with the first guide planes (33) and in contact with the first guide planes are provided on the peripheral side surface of the movable port (11), and the locking groove (12) is provided on the second guide plane (13).

7. The movable ball valve with a movable joint capable of rapid assembly and disassembly according to claim 6, characterized in that: A plurality of limiting protrusions (35) are formed on the surface of the tightening portion (31) facing the tightening convex ring (21), and a plurality of limiting grooves (22) corresponding to and matching the limiting protrusions (35) are formed on the surface of the tightening convex ring (21) facing the tightening portion (31), and the limiting protrusions (35) are snapped into the limiting grooves (22).

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