CN215841375U

CN215841375U - Rope skipping high-speed joint head

Info

Publication number: CN215841375U
Application number: CN202121212979.0U
Authority: CN
Inventors: 徐保斌
Original assignee: Yancheng Letai Precision Industry Co ltd
Current assignee: Yancheng Letai Precision Industry Co ltd
Priority date: 2021-06-01
Filing date: 2021-06-01
Publication date: 2022-02-18
Anticipated expiration: 2031-06-01

Abstract

The utility model discloses a skipping rope quick connector, which comprises: the handle joint is provided with a connecting part, one end of the connecting part is provided with a concave cavity, and the wall of the concave cavity is provided with a plurality of through holes; the outer wall of one end of the rotating shaft is provided with a first annular groove extending along the circumferential direction, and the end is arranged in the concave cavity; a plurality of round beads are respectively arranged in the through holes and used for locking the connecting part and the rotating shaft; the limiting sleeve is sleeved outside the connecting part and can axially move relative to the connecting part, so that the connecting state of the handle joint and the rotating shaft can be changed from a locking state to a loosening state; wherein, in a locking state, the ball extends into the first annular groove through the inner end of the through hole; under the pine takes off the state, form a space between the inner wall of through-hole and stop collar, the ball can break away from first ring channel to the motion of space. The purpose of locking and unlocking the handle joint and the rotating shaft can be achieved by moving the limit sleeve in an axial movement mode, and the handle joint has the advantages of labor saving and quickness.

Description

Rope skipping high-speed joint head

Technical Field

The utility model relates to the field of sports equipment, in particular to a skipping rope quick connector.

Background

The skipping rope usually comprises rope, handle and connector, and the handle is connected to the one end of connector, and the rope skipping is connected to the other end. The connector comprises a handle joint for connecting the handle and a rotating shaft for connecting the rope, wherein the rotating shaft is connected with the handle joint in a rotating mode. During the rope skipping movement, the rotating shaft rotates along with the rope and is subjected to centrifugal force exerted by the rope. The connecting structure of the rotating shaft and the handle joint is related to the service life of the skipping rope. Furthermore, the spindle and the handle connector are preferably quickly connected and disconnected.

SUMMERY OF THE UTILITY MODEL

Based on the above-mentioned requirement of rope skipping motion to the rope skipping, this disclosure provides a rope skipping high-speed joint head, includes:

the handle joint is provided with a connecting part, one end of the connecting part is provided with a concave cavity, and the wall of the concave cavity is provided with a plurality of through holes;

the outer wall of one end of the rotating shaft is provided with a first annular groove extending along the circumferential direction, and the end is arranged in the concave cavity;

a plurality of round beads are respectively arranged in the through holes and used for locking the connecting part and the rotating shaft; and

the limiting sleeve is sleeved outside the connecting part and used for keeping the connecting part and the rotating shaft in a locking state, and the limiting sleeve can move axially relative to the connecting part to enable the connecting state of the connecting part and the rotating shaft to be changed into a loosening state;

wherein, in a locking state, the ball extends into the first annular groove through the inner end of the through hole; under the pine takes off the state, form a space between the inner wall of through-hole and stop collar, the ball can break away from first ring channel to the motion of space.

The beneficial effects of the embodiment are as follows: the handle joint and the rotating shaft are locked in the axial direction through the ball, and the radial movement of the ball is strictly limited by the limiting sleeve in a locking state, so that the handle joint and the rotating shaft are firmly connected; the purpose of unlocking the handle joint and the rotating shaft can be achieved by moving the limit sleeve in an axial movement mode, and the skipping rope or the handle can be replaced quickly.

In some embodiments, the inner wall of the stop collar comprises a first portion having a relatively smaller inner diameter and a second portion having a relatively larger inner diameter; in a locked state, the through hole is opposite to the first part, and the first part limits the radial movement of the ball; in the release state, the through hole is opposite to the second part, and a gap is formed between the through hole and the second part. This embodiment accessible removes the stop collar and changes the clearance size between the outer end of through-hole and the inner wall of stop collar, makes the ball radially can the selectivity remove, has realized locking and pine take off two kinds of states.

In some embodiments, one end of the second portion is connected to the first portion and the other end of the second portion is provided with a second shoulder. After the ball got into the second part, the spacing relation between second shoulder and the ball had restricted stop collar further motion, prevented that the through-hole that the stop collar movement distance too big leads to from exposing to the outer end of having avoided the ball to follow the through-hole drops.

In some embodiments, the handle adapter further comprises a threaded rod connected to the connecting portion. The threaded rod is used to connect the handle joint to the handle of the jump rope.

In some embodiments, the bore of the inner end of the through hole is smaller than the diameter of the ball, the bore of the outer end of the through hole is larger than the diameter of the ball, and the diameter of the ball is larger than the wall thickness of the cavity. The ball is put into the through hole from the outer end, but cannot pass through the through hole from the inner end, so that the ball can be prevented from falling off from the inner end of the through hole.

In some embodiments, the handle connector further comprises a spring, a first limiting part is arranged on the outer side of the opening end of the concave cavity, the spring applies an axial force to the limiting sleeve to enable the end part of the limiting sleeve to be lower than the first limiting part, and the connection state of the handle connector and the rotating shaft is a locking state. Due to the action of the spring, the limiting sleeve always keeps the state of limiting the ball in the through hole, namely always keeps the locking state in the rope skipping process. When the limiting sleeve is pressed, the limiting sleeve can leave the first limiting part and overcome the spring force to move axially, and the handle joint enters a loosening state. When the limiting sleeve is loosened, the spring can push the limiting sleeve to reset.

In some embodiments, a second limiting portion is disposed on the outer side of the closed end of the inner cavity, a first shoulder portion is disposed on the inner wall of the limiting sleeve, a third portion is disposed on the inner wall of the limiting sleeve, an interlayer is formed between the third portion and the outer wall of the connecting portion, the spring is sleeved outside the connecting portion and placed in the interlayer, one end of the spring abuts against the second limiting portion, and the other end of the spring abuts against the first shoulder portion.

In some embodiments, a second annular groove extending along the circumferential direction is formed in the outer side of the opening end of the concave cavity, the first limiting portion is a clamp spring, and the clamp spring is placed in the second annular groove. The rope skipping high-speed connector of the embodiment has the advantage of being convenient to assemble and disassemble.

In some embodiments, the number of through holes and beads is 3.

In some embodiments, the end of the connecting part connected with the screw rod is provided with a limiting bulge.

Drawings

Fig. 1 is an exploded view of a jump rope connector according to an embodiment of the present disclosure.

Fig. 2 is a cross-sectional view of a jump rope connector according to an embodiment of the present disclosure in a locked state.

Fig. 3 is a cross-sectional view of a jump rope connector according to an embodiment of the present disclosure in a released state.

Fig. 4 is an exploded view of a handle joint of a jump rope connector according to an embodiment of the present disclosure.

Fig. 5 is an external view of a skipping rope connector according to another embodiment of the disclosure.

Fig. 6 is an external view of a skipping rope connector according to another embodiment of the disclosure.

Fig. 7 is an exploded view of a handle joint of a jump rope connector according to another embodiment of the disclosure.

Description of the symbols:

the handle connector comprises a handle joint 1, a rotating shaft 2, a ball 3, a limiting sleeve 4, a connecting part 5, a screw 6, a cavity 7, an open end 8, a closed end 9, a through hole 10, an inner end 11, an outer end 12, a first annular groove 13, a gap 14, a first part 15, a second part 16, a spring 17, a first limiting part 18, a second shoulder 19, a second limiting part 20, a first shoulder 21, a third part 22, an interlayer 23, a second annular groove 24 and a rope threading hole 25

Detailed Description

Referring to fig. 1, the rope skipping quick connector of the present embodiment includes a handle connector 1, a rotating shaft 2, a plurality of beads 3, and a limiting sleeve 4. Handle joint 1 is used for connecting the rope skipping handle, and pivot 2 is used for connecting the rope skipping rope, locks through ball 3 between the handle joint 1 and the one end of pivot 2, and stop collar 4 keeps ball 3 in locking position. The other end of the rotating shaft 2 is provided with a structure for connecting a skipping rope, and the structure includes but is not limited to the universal ball structure shown in fig. 1-3, and can also be any other structure capable of connecting a skipping rope. For example, referring to fig. 5, the side surface of the other end of the rotating shaft 2 has two through rope passing holes 25, the rope ends of the skipping ropes sequentially pass through the rope passing holes 25, the skipping ropes can be locked by fasteners, and the skipping ropes can be mechanically self-locked with the rotating shaft by utilizing the elastic characteristics of the steel wire materials of the skipping ropes. For another example, referring to fig. 6, a pipe 26 is provided at the other end of the rotation shaft 2, two screw holes 27 are provided in the side wall of the pipe 26, the rope end of the skipping rope is inserted into the pipe 26, a bolt fitted in the screw hole 27 is tightened, and the skipping rope is fastened by the pressing force of the end of the bolt against the skipping rope.

Referring to fig. 1, the handle joint 1 has a connecting portion 5 and a screw 6 for connecting a handle of a skipping rope. The connecting portion 5 has a cavity 7 at one end, the cavity 7 comprising an open end 8 and a closed end 9 opposite the open end 8, wherein the screw 6 is connected to the end of the closed end 9 and is coaxial with the connecting portion 5. The wall of the cavity 7 has a plurality of through-holes 10, which through-holes 10 are arranged in a circumferential direction around the cavity 7. The through hole 10 comprises an inner end 11 positioned on the inner wall of the connecting part 5 and an outer end 12 positioned on the outer wall of the connecting part 5, wherein the caliber of the inner end 11 is smaller than the diameter of the ball 3, and the caliber of the outer end 12 is larger than the diameter of the ball 3, so that the ball 3 is placed into the through hole 10 from the outer end 12 but cannot pass through the through hole 10 from the inner end 11, and the ball 3 can be prevented from falling off from the inner end 11 of the through hole 10. In general, it is sufficient that the number of the through holes 10 and the beads 3 is 3, although more beads 3 are possible.

Referring to fig. 1 and 2, the outer wall of one end of the rotating shaft 2 has a first annular groove 13 extending in the circumferential direction, and the end is disposed in the cavity 7. The handle joint 1 and the rotating shaft 2 are locked through the ball 3. The ball 3 may be a steel ball. In particular, the diameter of the ball 3 is greater than the wall thickness of the cavity 7, so that when the ball 3 is tangential or substantially tangential to the outer peripheral surface of the connection portion 5, a portion of the ball 3 can extend into the first annular groove 13 through the inner end 11 of the through hole 10, while a major portion of the ball 3 remains in the through hole 10, so that the handle connector 1 is not axially separable from the spindle 2.

The limiting sleeve 4 is sleeved outside the connecting part 5 and used for limiting the movement of the ball 3 in the radial direction along the connecting part 5, so that the connecting part 5 and the rotating shaft 2 are in a locking state. The stop collar 4 is also arranged to be axially movable relative to the connecting portion 5 to enable the connection of the handle connector 1 to the shaft 2 to be changed from the locked state to the unlocked state. Specifically, referring to fig. 2, in the locked state, the inner wall of the position-limiting sleeve 4 is close to the outer end 12 of the through hole 10, at this time, the ball 3 is limited in the through hole 10 by the inner wall of the position-limiting sleeve 4, and a portion of the ball 3 extends into the first annular groove 13 through the inner end 11 of the through hole 10. Referring to fig. 3, in the released state, the inner wall of the stop collar 4 is not directly blocked at the outer end 12 of the through hole 10, but forms a gap 14 with the outer end 12 of the through hole 10, and the ball 3 can move toward the gap 14 to be separated from the first annular groove 13, at this time, the rotating shaft 2 can be pulled out of the cavity 7.

Referring to fig. 1, the inner wall of the stop collar 4 includes a first portion 15 having a relatively smaller inner diameter and a second portion 16 having a relatively larger inner diameter. In the locked state, please refer to fig. 1 and 2, the through hole 10 is opposite to the first portion 15, and the first portion 15 is close to or attached to the outer end 12 of the through hole 10 and can be plugged at the outer end 12 of the through hole 10 to limit the radial movement of the ball 3. In the released state, please refer to fig. 1 and 3, the through hole 10 is opposite to the second portion 16, and a gap 14 is formed between the outer end 12 of the through hole 10 and the second portion 16, and the gap 14 provides a space for the ball 3 to move radially outwards. In the released state, when the rotating shaft 2 is pulled outward, the ball 3 is pushed toward the gap 14, so that the ball 3 is disengaged from the first annular groove 13.

The stop collar 4 is arranged to be elastically movable in the axial direction. Specifically, please refer to fig. 1 and fig. 2, the skipping rope quick connector further includes a spring 17, a first limiting portion 18 is disposed outside the open end 8 of the cavity 7, the spring 17 applies an axial force to the limiting sleeve 4 to make the end of the limiting sleeve 4 abut against the first limiting portion 18, at this time, the through hole 10 is opposite to the first portion 15, the ball 3 is limited in the through hole 10, and the connection state of the handle joint 1 and the rotating shaft 2 is maintained in a locking state. Due to the action of the spring 17, the limiting sleeve 4 always keeps the state of limiting the ball 3 in the through hole 10 during the rope skipping movement, namely, the locking state is always kept. The ball 3 is constrained both axially and radially and can only roll with respect to the first annular groove 13. Referring to fig. 3, when the position-limiting sleeve 4 is pressed, the position-limiting sleeve 4 can leave the first position-limiting portion 18 and move axially against the spring force until the second portion 16 is opposite to the through hole 10, and at this time, the rotating shaft 2 is pulled, so that the ball 3 can be extruded to the second portion 16, and the ball 3 is separated from the first annular groove 13. When the stop collar 4 is released, the spring 17 pushes the stop collar 4 to reset. The handle joint 1 is firmly connected with the rotating shaft 2 and can be quickly separated, so that the rotating shaft 2 or the handle can be quickly replaced.

Referring to fig. 1, one end of the second portion 16 is connected to the first portion 15, and the other end of the second portion 16 is provided with a second shoulder 19, so that a groove is formed between the first portion 15 and the second shoulder 19. The above-described structure of the stop collar 4 can be formed by milling the grooves into the inner wall of a tubular body. Referring again to fig. 3, after the ball 3 enters the second portion 16, the spacing relationship between the second shoulder 19 and the ball 3 limits the further movement of the position-limiting sleeve 4, preventing the through hole 10 from being exposed, thereby preventing the ball 3 from falling off from the outer end 12 of the through hole 10.

Referring to fig. 1 to 3, a second position-limiting portion 20 is disposed outside the closed end 9 of the inner cavity, the inner wall of the position-limiting sleeve 4 has a first shoulder 21, the inner wall of the position-limiting sleeve 4 has a third portion 22 with an inner diameter larger than that of the second portion 16, an interlayer 23 is formed between the third portion 22 and the outer wall of the connecting portion 5, the spring 17 is sleeved outside the connecting portion 5 and disposed in the interlayer 23, one end of the spring 17 abuts against the second position-limiting portion 20, and the other end abuts against the first shoulder 21. For example, the inner wall of the stop collar 4 may be milled to enlarge the inner diameter to form a third portion 22, wherein the third portion 22 is connected to the second portion 16 at one end and extends to the port of the stop collar 4 at the other end. The junction of the third portion 22 and the second portion 16 forms the first shoulder 21, since the third portion 22 has a larger inner diameter than the second portion 16.

Referring to fig. 4, a second annular groove 24 extending along the circumferential direction is disposed outside the opening end 8 of the cavity 7, and the first limiting portion 18 is a snap spring disposed in the second annular groove 24. The first limiting part 18 is arranged in a clamp spring mode, and has the advantages that the assembly and the disassembly of the rope skipping quick connector are convenient, and the connector is quickly switched.

In some embodiments, referring to fig. 7, the end of the connecting portion 5 connected to the screw 6 is provided with a limiting protrusion 26. Specifically, a stopper projection 26 is provided at the outer end of the closed end 9. The connector of the present embodiment is attached to a handle having a stopper groove at the end, specifically, the screw 6 is inserted into a hole at the end of the handle, and the holding stopper projection 26 is disposed in the stopper groove and locked with the screw by a nut from the inside of the handle. The limiting protrusion 26 is in limiting fit with the limiting groove, and the connecting part 5 is prevented from rotating relative to the handle in the rope skipping process.

What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a rope skipping high-speed joint which characterized in that includes:

the outer wall of one end of the rotating shaft is provided with a first annular groove extending along the circumferential direction, and the end of the rotating shaft is arranged in the concave cavity;

the plurality of round beads are respectively arranged in the through holes and used for locking the connecting part and the rotating shaft; and

the limiting sleeve is sleeved outside the connecting part and used for keeping the connecting part and the rotating shaft in a locking state, and the limiting sleeve can axially move relative to the connecting part so as to enable the connecting state of the connecting part and the rotating shaft to enter a loosening state;

in the locking state, the ball penetrates through the inner end of the through hole and extends into the first annular groove; in the loosening state, a gap is formed between the through hole and the inner wall of the limiting sleeve, and the ball can move towards the gap to be separated from the first annular groove.

2. The jump rope quick connector according to claim 1, wherein the inner wall of the stop collar comprises a first portion having a relatively smaller inner diameter and a second portion having a relatively larger inner diameter;

in the locked state, the through hole is opposite to the first part, and the first part limits the radial movement of the ball;

in the released state, the through hole is opposed to the second portion, and the gap is formed between the through hole and the second portion.

3. The jump rope quick connector of claim 2 wherein one end of the second portion is connected to the first portion and the other end of the second portion is provided with a second shoulder.

4. The skipping rope quick connector according to claim 1, wherein the inner end of the through hole has a diameter smaller than the diameter of the ball, the outer end of the through hole has a diameter larger than the diameter of the ball, and the diameter of the ball is larger than the wall thickness of the cavity.

5. The jump rope quick connector according to any one of claims 1 to 4, wherein the handle connector further comprises a threaded rod connected to the connecting portion.

6. The skipping rope quick connector according to any one of claims 1 to 4, further comprising a spring, wherein a first limiting portion is disposed outside the open end of the cavity, the spring applies an axial force to the limiting sleeve to make the end of the limiting sleeve lower than the first limiting portion, and the connection state of the handle joint and the rotating shaft is the locking state.

7. The skipping rope quick connector according to claim 6, wherein a second limiting portion is disposed outside the closed end of the inner cavity, the inner wall of the limiting sleeve has a first shoulder, the inner wall of the limiting sleeve has a third portion, an interlayer is formed between the third portion and the outer wall of the connecting portion, the spring is sleeved outside the connecting portion and placed in the interlayer, one end of the spring abuts against the second limiting portion, and the other end of the spring abuts against the first shoulder.

8. The skipping rope quick connector according to claim 6, wherein a second annular groove extending along the circumferential direction is formed in the outer side of the opening end of the concave cavity, the first limiting portion is a clamp spring, and the clamp spring is placed in the second annular groove.

9. The jump rope quick connector according to any one of claims 1 to 4, wherein the number of said through holes and said beads is 3.

10. The skipping rope quick connector according to claim 5, wherein one end of the connecting part connected with the screw is provided with a limiting protrusion.