Easily-detached high-sealing movable joint

Abstract

The utility model discloses an easy-to-detach type high-sealing movable joint, which relates to the technical field of movable joints and comprises a movable joint and a fixed joint, a connecting pipe is arranged on one side of the movable joint, a sleeve is movably arranged on the outer side of the movable joint, a plurality of sliding holes are formed in the movable joint at equal intervals and penetrate through the wall of the movable joint, and lock balls are movably arranged in the sliding holes. According to the utility model, through the arrangement of the lock beads, the lock beads can be clamped into a clamping groove of the fixed joint under the action of a corresponding structure in the process that the fixed joint is inserted into the movable joint, so that the movable joint can be inserted into the movable joint, and the movable joint can be clamped into the clamping groove of the fixed joint; the movement of the fixed joint is limited; a reset spring is installed between the pressing cylinder and the movable connector, the two ends of the reset spring are fixedly connected to the side end of the sleeve and the movable connector respectively, the pressing cylinder downwards presses the reset spring, rapid locking of the fixed connector is conveniently achieved, and it is guaranteed that the fixed connector cannot be loosened accidentally in the normal use process.

Description

Technical Field

[0001] The utility model relates to the technical field of flexible joints, in particular to an easily detachable and highly sealing flexible joint. Background Art

[0002] In many industrial fields, such as petrochemicals, machinery manufacturing, aerospace, etc., fluid transportation systems widely use flexible joints to achieve convenient connections between pipelines. However, existing flexible joints often face the problem of insufficient sealing performance. Due to factors such as fluid pressure and temperature changes in the pipeline and equipment vibration, these gaps can cause fluid leakage, resulting in waste of resources.

[0003] Existing flexible joints have the problem of loose connection during long-term use, which reduces the tightness of the connection. At the same time, the joint is not easy to disassemble after insertion. Due to the lack of an effective unlocking structure, this application designs an easily detachable and highly sealed flexible joint to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose an easily detachable high-sealing flexible joint.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: an easily detachable high-sealing movable joint, comprising a movable joint and a fixed joint, a connecting pipe being provided on one side of the movable joint, a sleeve being movably provided on the outer side of the movable joint, a plurality of sliding holes being equidistantly provided on the movable joint wall, a locking ball being movably provided in the sliding hole, a ring block being convexly provided on the inner wall of the sleeve for pushing and tightening the locking ball, the ring block being fitly sleeved on the outer wall of the movable joint, and a pressure cylinder being connected to the side end of the sleeve.

[0006] Preferably, a guide cone surface is provided in the movable joint, and the insertion end of the fixed joint is provided with a chamfer that fits with the guide cone surface.

[0007] Preferably, an annular groove adapted to the locking bead is provided on the outer wall of the fixing joint, and an external threaded column is fixedly connected to the side end of the fixing joint.

[0008] Preferably, an internal thread groove is provided inside the movable joint, and the external thread column on the fixed joint cooperates with the thread of the internal thread groove.

[0009] Preferably, a return spring is provided inside the pressure cylinder, and two ends of the return spring are respectively fixedly connected to the pressure cylinder and the movable joint.

[0010] Preferably, a locking hoop for preventing the sleeve from falling off is provided on the outer wall of the movable joint, and a sealing gasket is provided on the inner wall of the sleeve, and the sealing gasket fits the locking hoop and the inner wall of the sleeve.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: in the present invention, through the cooperation of the external thread column and the internal thread groove, the joint connection can be made firm, and can withstand greater tension and pressure, ensuring that the joint will not loosen due to external force or fluid pressure during the fluid conveying process; through the cooperation of the pressure cylinder and the reset spring, the flexible joint can be reused many times, and the pressure cylinder can automatically reset after each operation to prepare for the next connection or disassembly operation, thereby improving the convenience of operation; through the setting of the locking hoop, the pressure cylinder can be prevented from falling off; through the setting of the sealing gasket, the sealing around the sleeve is enhanced; through the setting of the guide cone surface, the influence of position deviation on the sealing and connection effect during the insertion process is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0013] Figure 1 This is a schematic diagram of the overall structure proposed by the utility model;

[0014] Figure 2 This is a schematic diagram of the overall internal structure proposed by the utility model;

[0015] Figure 3 A half-section schematic diagram of the overall structure proposed by the utility model;

[0016] Figure 4 This is a partial structural diagram of the utility model.

[0017] Serial numbers in the figure: 1. movable joint; 2. connecting pipe; 3. pressure cylinder; 4. fixed joint; 5. locking clamp; 6. return spring; 7. internal thread groove; 8. sealing gasket; 9. locking bead; 10. external thread column; 11. guide cone; 12. sleeve. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] Example: See Figure 1-4The cam 12 is provided with a plurality of holes 12 on the outer wall of the movable joint 1, and a locking ball 9 is movably provided in the sliding hole to limit the movement of the fixed joint 4 and prevent it from accidentally falling out, thereby ensuring the stability of the movable joint connection and playing a key positioning and anti-falling role. The inner wall of the sleeve 12 is convexly provided with a ring block for pushing and tightening the locking ball 9, which is fitted on the outer wall of the movable joint 1. The side end of the sleeve 12 is connected with a pressing cylinder 3, which can apply pressure to the locking ball 9 inside the sleeve 12 to change the position state of the locking ball 9, thereby realizing the locking or unlocking function of the fixed joint 4.

[0020] In the present invention, a guide cone 11 is provided inside the movable joint 1, and the insertion end of the fixed joint 4 is provided with a chamfer that fits with the guide cone 11. The guide cone 11 helps to improve the overall accuracy and sealing of the movable joint connection; the outer wall of the fixed joint 4 is provided with an annular groove that adapts to the lock bead 9, and the side end of the fixed joint 4 is fixedly connected with an external thread column 10. The inside of the movable joint 1 is provided with an internal thread groove 7. The external thread column 10 on the fixed joint 4 cooperates with the thread of the internal thread groove 7. Through the engagement between the threads, the fixed joint 4 is firmly fixed. It is connected in the movable joint 1, which improves the tightness of the movable joint connection; a return spring 6 is installed between the pressure cylinder 3 and the movable joint 1, and the two ends of the return spring 6 are respectively fixed to the side ends of the sleeve 12 and the movable joint 1. The return spring 6 relies on its own elastic restoring force to pull the pressure cylinder 3 back to its initial position; a locking hoop 5 for preventing the sleeve 12 from falling off is provided on the outer wall of the sleeve 12, and a sealing gasket 8 is provided on the inner wall of the sleeve 12. The sealing gasket 8 fits the locking hoop 5 and the inner wall of the sleeve 12, and the sealing gasket 8 is used to improve the sealing of the joint.

[0021] Working principle: When using the present invention, first slide the pressure cylinder 3 downward to make the locking ball 9 active, and then insert the fixed joint 4 into the movable joint 1. The chamfer of the insertion end of the fixed joint 4 follows the guide cone 11 inside the movable joint 1, and slides as the fixed joint 4 is further inserted. The external threaded column 10 on the fixed joint 4 begins to cooperate with the internal threaded groove 7 inside the movable joint 1, and the position of the fixed joint 4 in the movable joint 1 is further stabilized by the engagement of the threads, completing the connection process. At the same time, when the card slot on the fixed joint 4 reaches the locking ball 9 position, the locking ball 9 is stuck in the card slot under the action of its own gravity. During the connection process, the sealing gasket 8 on the sleeve 12 plays a role, and the sealing gasket 8 fits the inner wall of the locking hoop 5 and the sleeve 12, effectively filling any gaps that may exist, and preventing fluid from leaking from around the sleeve 12. Finally, the pressure cylinder 3 is in the initial position under the action of the reset spring 6, and the use of an easily detachable high-sealing movable joint is completed.

[0022] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An easily detachable high-sealing flexible joint, comprising a movable joint (1) and a fixed joint (4), characterized in that: A connecting pipe (2) is provided on one side of the movable joint (1), a sleeve (12) is movably provided on the outer side of the movable joint (1), a plurality of sliding holes are opened on the movable joint (1) at equal intervals and penetrate the wall of the movable joint (1), a locking ball (9) is movably provided in the sliding hole, a ring block for pushing and pressing the locking ball (9) is convexly provided on the inner wall of the sleeve (12), the ring block is fitted on the outer wall of the movable joint (1), and a pressure cylinder (3) is connected to the side end of the sleeve (12).

2. The easily detachable high-sealing flexible joint according to claim 1, characterized in that: A guide conical surface (11) is provided in the movable joint (1), and a chamfer is provided on the insertion end of the fixed joint (4) to fit the guide conical surface (11).

3. The easily detachable high-sealing flexible joint according to claim 1, characterized in that: An annular groove adapted to the locking bead (9) is provided on the outer wall of the fixed joint (4), and an external threaded column (10) is fixedly connected to the side end of the fixed joint (4).

4. The easily detachable high-sealing flexible joint according to claim 2, characterized in that: An internal thread groove (7) is provided inside the movable joint (1), and the external thread column (10) on the fixed joint (4) cooperates with the thread of the internal thread groove (7).

5. The easily detachable high-sealing flexible joint according to claim 1, characterized in that: A return spring (6) is installed between the pressure cylinder (3) and the movable joint (1), and both ends of the return spring (6) are fixed to the side ends of the sleeve (12) and the movable joint (1) respectively.

6. The easily detachable high-sealing flexible joint according to claim 1, characterized in that: A locking hoop (5) for preventing the sleeve (12) from falling off is provided on the outer wall of the movable joint (1), and a sealing gasket (8) is provided on the inner wall of the sleeve (12). The sealing gasket (8) fits the locking hoop (5) and the inner wall of the sleeve (12).

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