Quick release connector

Abstract

The utility model discloses a quick-release connector, belongs to the technical field of machinery, and aims to overcome the defect that an existing quick-release connector is troublesome to mount. The quick-release connector comprises a connecting pipe, an inner clamping piece fixed to the connecting pipe, an outer clamping piece arranged on the connecting pipe and the inner clamping piece in a sleeving mode, a ball installed on the inner clamping piece and a pipe body inserted into the inner clamping piece and connected with the ball in a clamped mode, and a movable blocking piece is arranged in the connecting pipe. A first elastic piece is arranged between the blocking piece and the connecting pipe so that the blocking piece can tend to move in the direction of the pipe body, the blocking piece abuts against the pipe body, the outer clamping piece is provided with a receding groove, and when the pipe body is separated from the inner clamping piece, the blocking piece blocks the balls so that the balls can be kept embedded in the receding groove. And the pipe body is simple and convenient to install.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mechanical technical field relates to a quick release joint. BACKGROUND

[0002] Chinese patent document discloses the utility model patent of the name pipe body quick release joint structure, and the authorized announcement number is CN203131272U, when needing to connect the pipe body to the connecting pipe, needing to pull the sleeve first manually, then inserting the pipe body, so that the ball can be embedded to the concave ring part. The installation operation of pipe body is more troublesome. In addition, the two-stage fixed connection formed by the pipe body and the sleeve through the thread connection makes the pipe body disassembly and assembly troublesome. SUMMARY

[0003] The utility model discloses quick release joint for the problems existing in prior art, and the purpose is to overcome the defect that the existing quick release joint installation is more troublesome.

[0004] The utility model is realized thus:

[0005] Quick release joint, including connecting pipe, fixed in the inner clamping piece of connecting pipe, the outer clamping piece of setting in connecting pipe and inner clamping piece, the ball of installing in inner clamping piece and with the pipe body of inserting in the inner clamping piece and the ball joint, its characterized in that, the connecting pipe is equipped with movable barrier, and the barrier and the connecting pipe between the first elastic piece is equipped with to make the barrier tend to move to the pipe body direction, the barrier and the pipe body abut, the outer clamping piece has the accommodation slot, when the pipe body separates the inner clamping piece, the barrier blocks the ball to make the ball keep embedding in the accommodation slot.

[0006] When needing to pull out the pipe body, the outer clamping piece is moved from the first position to the second position, so that the accommodation slot position corresponds with the ball, the ball can be embedded in the accommodation slot, and the ball can cancel the location of the pipe body. The first elastic piece pushes the barrier reset, so that the pipe body can automatically pop out, and the barrier forms the physical location of the ball, so that the ball remains in the accommodation slot, and the ball can keep the outer clamping piece in the second position. When inserting the pipe body, the outer clamping piece does not need to be operated, the barrier moves back and compresses the first elastic piece under the pipe body thrust, and the pipe body can quickly re-engage with the ball. The installation operation is simple and convenient.

[0007] Preferably, the inner side of the outer clamping piece has a boss, the pipe body has a clamping groove, the boss abuts on the ball to make the ball embedded in the clamping groove. When the pipe body is inserted into the inner clamping piece, the boss of the outer clamping piece contacts the ball and exerts pressure. Since the ball has good rolling and force transmission characteristics, the force exerted by the boss makes the ball have a tendency to move towards the pipe body. The clamping groove on the pipe body provides a specific accommodating position for the ball, and under the pressure of the boss, the ball is accurately embedded into the clamping groove of the pipe body, thereby realizing the clamping fixation between the pipe body and the outer clamping piece and other components.

[0008] Preferably, the boss and the end of the connecting pipe have a second elastic member therebetween, so that the outer clamping piece tends to move towards the outer end. During the insertion of the pipe body, when the ball is embedded in the clamping groove, the ball no longer restricts the boss of the outer clamping piece, and the outer clamping piece automatically resets under the action of the second elastic member, so that the boss blocks the ball from leaving the clamping groove, and the pipe body and the connecting pipe are kept in a connected state.

[0009] Preferably, the outer wall of the connecting pipe is provided with a blocking part to limit the moving distance of the outer clamping piece towards the inner end. When the outer clamping piece moves towards the inner end, the blocking part contacts the outer clamping piece to prevent the outer clamping piece from continuing to move inward, thereby limiting the moving range of the outer clamping piece towards the inner end and ensuring that the outer clamping piece does not move inward excessively to cause the ball to fall out.

[0010] Preferably, the outer clamping piece has a positioning groove corresponding to the blocking part, and when the blocking part is embedded in the positioning groove, the ball is positionally corresponding to the accommodation groove.

[0011] Preferably, the outer clamping piece is rotatably arranged to align or misalign the positioning groove with the blocking part. When the positioning groove is misaligned with the blocking part, the outer clamping piece moves inward by a smaller distance or cannot move inward, the accommodation groove cannot be positionally corresponding to the ball, the ball cannot enter the accommodation groove, the boss still keeps the ball in the clamping groove, and the pipe body cannot be removed, thereby avoiding misoperation. Only when the outer clamping piece is rotated to align the positioning groove with the blocking part, the outer clamping piece moves inward, the blocking part can be embedded in the positioning groove, the outer clamping piece can move inward by a larger distance, the accommodation groove and the ball are aligned, the ball can be embedded in the accommodation groove, and the pipe body can be removed, thereby avoiding the use of threads to prevent misoperation and making the operation simpler and more convenient.

[0012] The utility model has the following beneficial effects: the blocking part forms physical limitation on the ball, the ball is kept in the accommodation groove, the ball can keep the outer clamping piece in the second position, when the pipe body is inserted, the blocking part is pushed by the pipe body and moves backward and compresses the first elastic member, the pipe body can be quickly re-clamped with the ball, and the installation operation is simple and convenient. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 This is a structural diagram of the joint when the positioning groove and the blocking portion are misaligned;

[0014] Figure 2 is a schematic cross-sectional structural diagram of the joint when the outer clamp is in the first position;

[0015] Figure 3 This is a structural diagram of the joint when the positioning groove and the blocking portion are aligned;

[0016] Figure 4 This is a schematic diagram of the structure of the joint when the blocking portion is embedded in the positioning groove;

[0017] Figure 5 is a schematic cross-sectional structural diagram of the connector when the outer clamp is in the second position;

[0018] Figure 6 This is a schematic diagram of the cross-sectional structure of the joint after the pipe body is disassembled.

[0019] Explanation of the accompanying drawings: 100, connecting tube; 110, blocking part; 200, inner clamping part; 210, ball; 300, outer clamping part; 310, yield groove; 320, boss; 330, second elastic part; 340, positioning groove; 400, tube body; 410, clamping slot; 500, blocking part; 510, first elastic part. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings to make the technical solution of the present invention easier to understand and grasp. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] This embodiment provides a quick-release connector, such as Figures 1-6 As shown, it includes a connecting tube 100, an inner clamping member 200 fixed on the connecting tube 100, an outer clamping member 300 sleeved on the connecting tube 100 and the inner clamping member 200, a ball 210 installed on the inner clamping member 200, and a tube body 400 inserted in the inner clamping member 200 and engaged with the ball 210. A movable blocking member 500 is provided in the connecting tube 100, and a first elastic member 510 is provided between the blocking member 500 and the connecting tube 100 to make the blocking member 500 tend to move toward the tube body 400. The blocking member 500 abuts against the tube body 400, and a yield groove 310 is provided on the outer clamping member 300. When the tube body 400 is separated from the inner clamping member 200, the blocking member 500 blocks the ball 210 so that the ball 210 remains embedded in the yield groove 310.

[0022] When the pipe body 400 needs to be pulled out, the outer clamping piece 300 is moved from the first position to the second position, so that the position of the accommodation groove 310 corresponds to the ball 210, the ball 210 can be embedded into the accommodation groove 310, and the ball 210 can cancel the limiting of the pipe body 400. The first elastic piece 510 pushes the blocking piece 500 to reset, so that the pipe body 400 can be automatically popped out, and at the same time, the blocking piece 500 forms physical limiting to the ball 210, so that the ball 210 remains in the accommodation groove 310, and the ball 210 can keep the outer clamping piece 300 in the second position. When the pipe body 400 is inserted, the outer clamping piece 300 does not need to be operated, the blocking piece 500 moves backward under the pushing force of the pipe body 400 and compresses the first elastic piece 510, the pipe body 400 can be quickly re-clamped with the ball 210, and the installation operation is simple and convenient. The first elastic piece 510 is a spring.

[0023] As shown in Figure 2 , the inner side of the outer clamping piece 300 has a boss 320, the pipe body 400 has a clamping groove 410, and the boss 320 abuts on the ball 210 to embed the ball 210 into the clamping groove 410. When the pipe body 400 is inserted into the inner clamping piece 200, the boss 320 of the outer clamping piece 300 will contact and apply pressure to the ball 210. Since the ball 210 has good rolling and force transmission characteristics, the force applied by the boss 320 will make the ball 210 have a movement trend in the direction of the pipe body 400. And the clamping groove 410 on the pipe body 400 provides a specific accommodating position for the ball 210, under the pressure action of the boss 320, the ball 210 will be accurately embedded into the clamping groove 410 of the pipe body 400, thereby realizing the clamping fixation between the pipe body 400 and the outer clamping piece 300 and other components.

[0024] As shown in Figure 6 , the boss 320 and the end of the connecting pipe 100 have a second elastic piece 330, so that the outer clamping piece 300 tends to move to the outer end. During the insertion of the pipe body 400, when the ball 210 is embedded into the clamping groove 410, the ball 210 no longer forms a constraint to the boss 320 of the outer clamping piece 300, and the outer clamping piece 300 is automatically reset under the action of the second elastic piece 330, so that the boss 320 blocks the ball 210 from leaving the clamping groove 410, and the pipe body 400 and the connecting pipe 100 remain in the connected state. The second elastic piece 330 is a spring.

[0025] As shown in Figure 1 , 3As shown in FIG4 , a blocking portion 110 is provided on the outer wall of the connecting tube 100 to limit the moving distance of the outer clamping member 300 toward the inner end. When the outer clamping member 300 moves toward the inner end, the blocking portion 110 will contact the outer clamping member 300 to prevent the outer clamping member 300 from continuing to move inward, thereby limiting the moving range of the outer clamping member 300 toward the inner end and ensuring that the outer clamping member 300 does not move excessively inward and cause the ball 210 to fall out. In other optional embodiments, the blocking portion 110 may not be provided, as long as the portion of the positioning groove 310 facing the outer end is not open, so that the ball 210 is constrained by the outer end wall and prevented from falling off.

[0026] like Figure 1 、 3 As shown in Figures 4 and 5, the outer clamping member 300 has a positioning groove 340 corresponding to the blocking portion 110. When the blocking portion 110 is embedded in the positioning groove 340, the ball 210 corresponds to the position of the clearance groove 310. The outer clamping member 300 can be rotatably arranged so that the positioning groove 340 is aligned or misaligned with the blocking portion 110. When the positioning groove 340 is misaligned with the blocking portion 110, the outer clamping member 300 moves inwards a small distance or cannot move, and the clearance groove 310 cannot correspond to the position of the ball 210, so that the ball 210 cannot enter the clearance groove 310. The boss 320 still keeps the ball 210 in the clamping groove 410, and the tube body 400 cannot be removed to avoid misoperation. Only by rotating the outer clamp 300 so that the positioning groove 340 is aligned with the blocking portion 110, the outer clamp 300 moves inward, the blocking portion 110 can be embedded in the positioning groove 340, and the outer clamp 300 can move inward a sufficient distance so that the clearance groove 310 and the ball 210 are aligned and the ball 210 can be embedded in the clearance groove 310, can the tube body 400 be disassembled. This avoids the threaded method to prevent misoperation and makes operation simpler and more convenient. The connecting tube 100 and the inner clamp 200 are fixedly connected by threads.

[0027] In the initial state, if Figure 6 As shown, the tube body 400 has not been installed yet, the blocking portion 110 is embedded in the positioning groove 340 of the outer clamp 300, the second elastic member 330 is in a certain compression state, giving the outer clamp 300 an outward elastic force, and the boss 320 abuts against the ball 210, so the outer clamp 300 cannot move like the outer end, refer to Figure 6 From this perspective, the outer clamping member 300 cannot move upward, and the ball 210 is constrained by the blocking member 500 and cannot escape from the clearance groove 310 , so the ball 210 can stably prevent the outer clamping member 300 from moving outward.

[0028] Insert the tube 400 into the inner clamp 200. As the tube 400 goes deeper, the tube 400 pushes the blocking member 500 to move inward. Figure 5When the angle of view, i.e. moving downward, compresses the first elastic member 510, when the positioning groove 340 is aligned with the ball 210, as shown in the state, the surface of the boss 320 abutting against the ball 210 is a slope. Since the boss 320 has a tendency to move to the outer end, the ball 210 has a space to move to the clamping groove 410, so the ball 210 moves to the clamping groove 410 to get rid of the blocking effect on the boss 320, the outer clamping member 300 moves to the outer end, so that the boss 320 abuts against the ball 210, and the ball 210 is constrained in the clamping groove 410, thereby realizing the clamping of the pipe body 400, realizing the state as shown in Figure 5 . Figure 3 . .

[0029] After the clamping of the pipe body 400 is completed, the outer clamping member 300 is appropriately rotated, so that the blocking part 110 is misaligned with the positioning groove 340, realizing the state as shown in Figure 1 , avoiding misoperation.

[0030] When disassembling, the outer clamping member 300 is rotated, so that the positioning groove 340 is aligned with the blocking part 110, and the outer clamping member 300 is moved to the inner end, so that the ball 210 corresponds to the accommodation groove 310. The ball 210 is embedded in the accommodation groove 310, and the limiting of the pipe body 400 is released.

[0031] The first elastic member 510 pushes the blocking member 500 to reset, and the pipe body 400 is automatically popped out. At the same time, the blocking member 500 blocks the ball 210, so that the ball 210 remains in the accommodation groove 310, and the outer clamping member 300 remains in the second position.

Claims

1. Quick release joint, comprising a connecting pipe (100), an inner clamp (200) fixed on the connecting pipe (100), an outer clamp (300) sleeved on the connecting pipe (100) and the inner clamp (200), a ball (210) installed on the inner clamp (200), and a pipe body (400) inserted into the inner clamp (200) and clamped with the ball (210), characterized in that, The connecting pipe (100) is internally provided with a movable blocking piece (500), a first elastic member (510) is arranged between the blocking piece (500) and the connecting pipe (100) to make the blocking piece (500) tend to move towards the pipe body (400), the blocking piece (500) abuts against the pipe body (400), the outer clamping piece (300) is provided with a clearance slot (310), when the pipe body (400) is separated from the inner clamping piece (200), the blocking piece (500) blocks the ball (210) to make the ball (210) remain embedded in the clearance slot (310).

2. The quick disconnect coupling of claim 1, wherein, The inner side of the outer clamping piece (300) is provided with a boss (320), the pipe body (400) is provided with a clamping slot (410), the boss (320) abuts against the ball (210) to make the ball (210) embedded in the clamping slot (410).

3. The quick disconnect coupling of claim 2, wherein, The boss (320) and the end of the connecting pipe (100) are provided with a second elastic member (330) to make the outer clamping piece (300) tend to move towards the outer end.

4. The quick disconnect coupling of claim 1, wherein, The outer wall of the connecting pipe (100) is provided with a blocking portion (110) to limit the moving distance of the outer clamping piece (300) towards the inner end.

5. The quick disconnect coupling of claim 4, wherein, The outer clamping piece (300) is provided with a positioning slot (340) corresponding to the blocking portion (110), when the blocking portion (110) is embedded in the positioning slot (340), the ball (210) is positionally corresponding to the clearance slot (310).

6. The quick disconnect coupling of claim 5, wherein, The outer clamping piece (300) is rotatably arranged to make the positioning slot (340) positionally corresponding or mispositionally corresponding to the blocking portion (110).

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