CN219050267U - Rope winding device and ball game trainer - Google Patents

Abstract

A rope winding device comprises a shell 1 with an outlet 11, a winding mechanism arranged in the shell 1, and a rope component 3 with one end penetrating through the outlet; the winding mechanism comprises a rotary table 2 rotatably connected with the shell 1 and a reset piece 5, and the reset piece 5 is positioned between the shell 1 and the rotary table 2; a receiving groove 22 for receiving the rope assembly 3 is formed in the circumferential direction of the turntable 2; the device also comprises a winding and unwinding auxiliary mechanism which is used for limiting the turntable 2 to continuously pull the rope assembly 3 outwards or to recover the reel after the rope assembly 3 is pulled outwards for a preset distance. According to the utility model, through arranging the turntable, the resetting piece and the retraction auxiliary mechanism, the rope component can be locked after being pulled out of a plurality of different lengths; and the ball assembly is connected to the outer end of the rope assembly to form a ball sports trainer which can be hung on places such as buildings, the training field is expanded, and the training of the ball feeling, the reaction speed, the eyesight, the concentration degree and the like is facilitated for a user.

Description

Rope winding device and ball game trainer

Technical Field

The utility model relates to the field of sports training equipment, in particular to a rope winding device and a ball sports training device.

Background

The winding mechanism is commonly used for storing the rope articles, and is usually realized by adopting a rotary drum, and the rope is wrapped on the rotary drum in an electric or manual mode.

In training of ball games, especially table tennis, badminton and soccer, it is often necessary to hang the ball beyond the ball, and perform ball jolt or other exercises to improve ball feel, reaction speed or vision concentration.

However, the prior products require the key to be pressed to retract the rope.

It is clear that the prior art has certain drawbacks.

Disclosure of Invention

The technical problem to be solved by one aspect of the utility model is to retract and release the rope component in the rope winding device, and the winding operation of the rope component is realized by arranging the turntable, the resetting piece and the retraction auxiliary mechanism, so that the technical problem is effectively solved.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a rope winding device comprises a shell (1) with an outlet (11), a winding mechanism arranged in the shell (1), and a rope component (3) with one end penetrating through the outlet; the winding mechanism comprises a rotary table (2) rotatably connected with the shell (1) and a reset piece (5), wherein the reset piece (5) is positioned between the shell (1) and the rotary table (2); a containing groove (22) for containing the rope assembly (3) is formed in the circumferential direction of the turntable (2); the device also comprises a winding and unwinding auxiliary mechanism which is used for limiting the turntable (2) to continuously pull the rope assembly (3) outwards and recycle the reel after the rope assembly (3) is pulled outwards for a preset distance.

Further, the retraction auxiliary mechanism comprises a first guide groove (21) and a second guide groove (23) which are arranged on the turntable (2), a rotation stopping groove (24), a third guide groove (121) which is arranged on the shell (1), and a ball (4); the first guide groove (21) is a circular or round-like guide groove, and the first guide groove (21) is arranged on the periphery of the second guide groove (23); the second guide groove (23) is provided with a notch (231) connected with the first guide groove (21); the rotation stopping groove (24) is positioned between the first guide groove (21) and the second guide groove (23) and is respectively connected with the first guide groove (21) and the second guide groove (23); the third guide groove (121) is arranged on the inner wall of the shell (1) and is used for limiting the moving range of the ball (4) to one of the first guide groove (21), the second guide groove (23) and the rotation stopping groove (24).

Further, the second guide groove (23) is a circular or round-like channel; a first ridge (211) is arranged in the first guide groove (21) and is close to the joint of the rotation stopping groove (24) and the first guide groove (21); a second ridge (232) is arranged on the notch (231); a third ridge (241) is arranged at the position where the rotation stopping groove (24) is connected with the first guide groove (21), and a fourth ridge (242) is arranged at the position where the rotation stopping groove (24) is connected with the second guide groove (23); -the third ridge (241) is higher than the fourth ridge (242); the first ridge (211) is higher than the third ridge (241).

Further, a fifth ridge (233) is disposed in the second guide groove (23) and is located near the notch (231).

Further, the second guide groove (23) is an arc guide groove, and two ends of the second guide groove are respectively connected with the first guide groove (21) and the rotation stopping groove (24); a sixth ridge is arranged in the first guide groove (21) and is positioned close to the notch (231); a seventh ridge is arranged at the position where the rotation stopping groove (24) is connected with the first guide groove (21), and an eighth ridge is arranged at the position where the rotation stopping groove (24) is connected with the second guide groove (23); the eighth ridge is higher than the seventh ridge.

Further, the rotary table also comprises a rotary support (7) for supporting the rotary table (2); a pin column (15) is arranged on the inner wall of the shell (1); the middle part of rotating support (7) with the middle part of carousel (2) all is equipped with changeing hole (26), rotating support (7) with carousel (2) pass through changeing hole (26) peg graft in on round pin post (15).

Further, a plurality of supporting feet (25) are arranged on one side of the turntable (2) away from the retraction auxiliary mechanism, and are used for reducing friction between the turntable (2) and the inner wall of the shell (1) when the turntable (2) rotates; the supporting feet (25) are uniformly distributed on the same circumference.

The utility model also provides a ball game trainer, which is characterized by comprising any one of the rope winding devices and a ball assembly (6) connected with the rope assembly (3); a hanging part (14) is arranged on the outer wall of the shell (1).

Further, one of the rope component (3) and the ball component (6) is provided with a hanging ring, and the other is provided with a fastener matched with the hanging ring.

Further, the ball assembly (6) is a table tennis ball.

The beneficial effects of the utility model are as follows:

1. through setting up carousel, reset piece and receive and release auxiliary mechanism, pull the back certain distance with the rope subassembly outwards, restrict the carousel and go back the recovery with the rope subassembly, perhaps, remove the restriction that the carousel carries out the rolling to the rope subassembly after the preset distance after pulling the rope subassembly outwards to the realization makes rope subassembly can pull out a plurality of different lengths to outside the casing.

2. Through setting up the revolving support and peg graft on the carousel to revolving support and carousel coaxial rotation guarantee the rotatory concentricity of carousel both sides, make it be located the coplanar rotation all the time, reduce the frictional force with between the casing, promote structure moving smoothness nature and product life.

3. Through setting up the supporting legs on the carousel, reduce the area of contact of carousel side and shells inner wall, further reduce the frictional force when rotatory.

4. The ball assembly is connected to the outer end of the rope assembly to form a ball sports trainer which can be hung on a building and the like, a training field is expanded, and a user can train the ball feel, the reaction speed, the eyesight, the concentration degree and the like conveniently.

5. The hanging ring and the fastener are respectively arranged on the rope component and the ball component, so that the maintenance or the replacement of different balls is convenient.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a rope winding device and a ball game training device according to an embodiment of the present utility model.

Fig. 2 is a schematic view of the structure of the inside of fig. 1.

Fig. 3 is a schematic structural view of the turntable.

Fig. 4 is a schematic view of the structure of the inner wall of the lower housing.

Fig. 5 is a schematic diagram of an explosion structure of the first embodiment.

Reference numerals illustrate:

1. a housing; 2. a turntable; 3. a rope assembly; 4. a ball; 5. a reset member; 6. a ball assembly; 7. a rotary support;

11. an outlet; 12. a lower half shell; 13. an upper half shell; 14. a hanging part; 15. a pin;

121. a third guide groove;

21. a first guide groove; 22. a storage groove; 23. a second guide groove; 24. a rotation stopping groove; 25. supporting feet; 26. a turning hole;

211. a first ridge; 231. a notch; 232. a second ridge; 233. a fifth ridge;

241. a third ridge; 242. and a fourth ridge.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model and the accompanying drawings. It should be noted that the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

Example 1

As shown in fig. 1-5, a rope reeling device according to a preferred embodiment of the utility model comprises a housing 1 with an outlet 11, a reeling mechanism arranged in the housing 1, and a rope assembly 3 with one end passing through the outlet 11. The winding mechanism comprises a rotary table 2 rotatably connected with the shell 1 and a reset piece 5, wherein the reset piece 5 is connected between the shell 1 and the rotary table 2; a receiving groove 22 for receiving the rope assembly 3 is formed in the circumferential direction of the turntable 2; still including receiving and releasing auxiliary mechanism, locate on carousel 2 and casing 1, be used for outwards pulling rope subassembly 3 after certain distance, restriction carousel 2 is with the back rolling of rope subassembly 3, realize making rope subassembly 3 can pull out a plurality of different lengths to outside casing 1, perhaps, outwards pull out the restriction of rope subassembly 3 to remove carousel 2 to carrying out the rolling to rope subassembly 3 after predetermineeing the distance with rope subassembly 3, and after removing carousel 2 and carrying out the restriction of rolling to rope subassembly 3, receive the automatic rope subassembly 3 of rolling through reset piece 5 drive.

Specifically, the housing 1 includes an upper half shell 13 and a lower half shell 12, and an installation space is formed inside the upper half shell 13 and the lower half shell 12 after being spliced for installing the rest of the components; the return element 5 is a spring or torsion spring, in this embodiment preferably a spring.

The retraction auxiliary mechanism comprises a first guide groove 21, a second guide groove 23, a rotation stopping groove 24, a third guide groove 121 and a ball 4, wherein the first guide groove 21 and the second guide groove 23 are arranged on the turntable 2, the third guide groove 121 is arranged on the shell 1; the first guide groove 21 is a circular or circular-like guide groove, and the first guide groove 21 is disposed at the periphery of the second guide groove 23, and in this embodiment, the first guide groove 21 is a circular-like guide groove. The second guide groove 23 has a notch connecting the first guide groove 21; the rotation stopping groove 24 is positioned between the first guide groove 21 and the second guide groove 23 and is respectively connected with the first guide groove 21 and the second guide groove 23; the first guide groove 21 and the second guide groove 23 are both closed-loop guide grooves, and the rotation stopping groove 24 is a non-closed guide groove, so that the rotation stopping groove 24 can realize the purpose of locking the movement of the ball 4, namely, the locking turntable 2 rotates, and the rope assemblies 3 with different lengths are pulled out. The third guide groove 121 is disposed on the inner wall of the housing 1, for limiting the movement range of the balls 4 between the first guide groove 21, the second guide groove 23 and the rotation stopping groove 24, and in this embodiment, the third guide groove 121 is disposed on the inner wall of the lower half shell 12, preferably a straight channel, so that the balls 4 can be conveniently switched among the rotation stopping groove 24, the first guide groove 21 and the second guide groove 23 during the rotation of the turntable 2.

In the present embodiment, the second guide groove 23 is a circular or circular-like channel, and in the present embodiment, the second guide groove 23 is a circular-like guide groove; a first ridge 211 is arranged in the first guide groove 21 and is close to the joint of the rotation stopping groove 24 and the first guide groove 21; a second ridge 232 is arranged on the notch; a third ridge 241 is arranged at the position where the rotation stopping groove 24 is connected with the first guide groove 21, and a fourth ridge 242 is arranged at the position where the rotation stopping groove 24 is connected with the second guide groove 23; the third ridge 241 is higher than the fourth ridge 242; the first ridge 211 is higher than the third ridge 241.

Further, a fifth ridge 233 is disposed in the second guiding groove 23 and is located near the notch.

As shown in fig. 2 and 3, in the present embodiment, in order to improve the smoothness of the operation of the structure, it is preferable that the first ridge 211, the second ridge 232, the third ridge 241 and the fourth ridge 242 are all arranged along the guiding groove, and each orthographic projection is in an arc shape on the turntable 2.

Further, a rotary support 7 is also included; a pin 15 is arranged on the inner wall of the shell 1; the rotary support 7 is inserted into the rotary table 2, and rotary holes 26 are formed in the middle parts of the rotary support 7 and the rotary table 2; the pin 15 is inserted into the rotary hole 26. Through setting up the revolving support 7 and peg graft on carousel 2 to revolving support 7 and carousel 2 coaxial rotation guarantee the rotatory concentricity in carousel 2 both sides, make it be located the coplanar rotation all the time, reduce the frictional force with between the casing 1, promote structure moving smoothness nature and product life.

In order to further reduce the friction force when the turntable 2 rotates, a plurality of supporting feet 25 are arranged on one side of the turntable 2 away from the retraction auxiliary mechanism and used for reducing the friction between the turntable 2 and the inner wall of the shell 1 when the turntable 2 rotates; the supporting feet 25 are uniformly distributed on the same circumference, so that the contact between the side surface of the turntable 2 and the inner wall of the shell 1 is changed from large-area contact to small-area contact. In other embodiments, the contact area between the supporting leg 25 and the inner wall of the housing 1 may be further reduced, so as to form a point contact arrangement.

Working principle:

the ball 4 moves in the first guide groove 21, the second guide groove 23, the rotation stopping groove 24 and the third guide groove 121 in a sliding or rolling mode; when the exposed end of the rope assembly 3 is pulled, the rope assembly 3 drives the turntable 2 to rotate, the first guide groove 21 or the second guide groove 23 or the rotation stopping groove 24 rotates along with the turntable 2 in the rotating process of the turntable 2, and due to inertia, the balls 4 are in a static state initially, after the turntable 2 rotates, the turntable 2 and the balls 4 relatively move, and the turntable 2 is taken as a reference object to describe how the balls 4 move on the turntable 2, have a movement track, and form an effective pull rope and then lock or unlock the automatic rope winding assembly 3.

The following working principle is based on the direction of fig. 3.

1. Process of pulling the rope assembly 3 outwards to customize the length and locking:

1.1 pulling the rope outwards from the locked state:

(1) Initially, the ball 4 is located at the most extreme position of the anti-rotation groove 24, and as the turntable 2 rotates, the ball 4 starts to rotate clockwise, and the third ridge 241 is higher than the fourth ridge 242, so that the ball 4 enters the second guide groove 23, and the preset distance is the length of the rope assembly 3 pulled outwards from the beginning to the completion of unlocking the rope assembly 3;

(2) When the end of the rope assembly 3 is pulled outwards, the balls 4 continue to move in the clockwise direction and enter the first guide groove 21 along the notch of the second guide groove 23, and note that at this time, the balls 4 do not reciprocate in the second guide groove 23, the balls 4 can be thrown into the first guide groove 21 under the action of centrifugal force, and the existence of the fifth ridge 233 further ensures that the balls 4 smoothly enter the first guide groove 21 when rotating clockwise;

(3) After the balls 4 enter the first guide groove 21, the balls 4 still move clockwise due to the initial speed of clockwise rotation by continuing to pull the rope assembly 3 outwards, and the balls can always circle in the first guide groove 21 until additional external force acting on the end of the rope assembly 3 is lost;

(4) When the user stops pulling the rope assembly 3 outwards, i.e. removes the external force, the potential energy stored on the reset piece 5 makes the turntable 2 rotate in the opposite direction, so that the balls 4 start to move anticlockwise, when the ball moves to the crossing of the first ridge 211 and the third ridge 241, the balls 4 enter the rotation stopping groove 24 from the first guide groove 21 because the first ridge 211 is higher than the third ridge 241, and when the ball reaches the extreme end, the turntable 2 stops rotating under the action of the groove wall of the third guide groove 121, the balls 4 and the rotation stopping groove 24 of the shell 1, so that the locking purpose is realized.

1.2, pulling the rope outwards from the fully contained state of the rope assembly 3:

in this initial state, the balls 4 are located on the second guide groove 23, which is described in detail below 2 and not described here.

(1) Pulling the rope assembly 3 outwards, and moving the ball 4 clockwise, wherein after a certain distance, the ball enters the first guide groove 21 from the notch of the second guide groove 23;

(2) The same as in (3) and (4) of 1.1 above.

It should be noted that, even if the ball 4 has moved between the first ridge 211 and the fifth ridge 233, the ball 4 still moves along the first guide groove 21 without entering the second guide groove 23 from the notch when moving counterclockwise due to the height of the fifth ridge 233.

2. And (3) the rope winding process:

(1) Starting from the locked state: initially, the ball 4 is located at the most extreme position of the rotation stopping groove 24, the rope assembly 3 is unlocked after being pulled out by a preset distance, the ball 4 enters the second guide groove 23, and at the moment, the movement direction of the ball 4 is clockwise;

(2) Releasing the hand to remove the force acting on the end of the rope assembly 3, and the spring drives the ball 4 to start to move in the anticlockwise direction, so that the rope assembly 3 is coiled in the containing groove 22 on the turntable 2; it should be noted that, in theory, the automatic winding can be achieved only by releasing the hands before the balls 4 enter the first guide groove 21, but the distance is not well known, and at the moment when the balls 4 enter the second guide groove 23, a click feel exists, so that the effect of releasing the hands is better.

(3) Due to the presence of the fourth ridge 242, the counterclockwise ball 4 cannot enter the anti-rotation groove 24 from the second guide groove 23, and therefore, the ball 4 moves counterclockwise along the second guide groove 23 until the rope assembly 3 is completely wound up; since the end of the cord assembly 3 will be secured with items such as spheres, which are typically larger than the outlet 11 of the housing 1 for the end of the cord assembly 3, the end of the winding process is such that the items are held against the outlet 11.

(4) If the object is not to fully house the rope assembly 3, only the exposed part of the rope assembly 3 needs to be shortened, then only after the rope assembly 3 is wound up, an external force is applied to the exposed end of the rope assembly 3, and the ball 4 is pulled outwards, so that the ball enters the first guide groove 21 from the second guide groove 23, and then the external force is removed, and the specific process is referred to 1.2.

Referring to fig. 1 and 2, the present embodiment further provides a ball game training device, which includes the rope winding device and a ball assembly 6 connected with the rope assembly 3; a hanging portion 14 is provided on the outer wall of the housing 1. The ball assembly 6 is connected to the outer end of the rope assembly 3 to form a ball sports trainer which can be hung on a building and the like, and the ball sports trainer can be customized to a plurality of different heights, so that the training field is expanded, and a user can train the ball feeling, the reaction speed, the eyesight, the concentration degree and the like conveniently.

In this embodiment, the ball assembly 6 is a table tennis ball, and is directly connected to the rope assembly 3, and in other embodiments, one of the rope assembly 3 and the ball assembly 6 may be provided with a hanging ring, and the other one is provided with a fastener matched with the hanging ring, so as to facilitate maintenance or replacement of different balls.

In this embodiment, the hanging portion 14 is formed by two through holes, and is preferably disposed at a side of the housing 1, and is located at a side away from the outlet 11 of the rope assembly 3.

Example two

As a modification of the above embodiment, an embodiment with poor effect can also be realized in which a plurality of different lengths are pulled out and locked, but when the winding is performed, the winding is performed after the repeated operation is performed, and a part of the winding is performed after the unlocking

The second guide groove 23 is an arc-shaped guide groove, two ends of the second guide groove 23 are respectively connected with the first guide groove 21 and the rotation stopping groove 24, and in the embodiment, the second guide groove 23 is a non-closed loop guide groove; a sixth ridge is arranged in the first guide groove 21 and is positioned near the notch; a seventh ridge is arranged at the position where the rotation stopping groove 24 is connected with the first guide groove 21, and an eighth ridge is arranged at the position where the rotation stopping groove 24 is connected with the second guide groove 23; the eighth ridge is higher than the seventh ridge.

Working principle:

since this embodiment is not illustrated, referring to fig. 3, the second guide groove 23 in the first embodiment is divided into two parts including a first guide groove and a second guide groove by taking the fourth ridge 242 and the notch as the dividing points, and the part near the rotation stopping groove 24 is a second guide groove, in this embodiment, only the part of the first guide groove is present, i.e. in the second embodiment, the second guide groove 23 is a non-closed loop guide groove. The rotation stopping groove 24 is the same as that of the first embodiment. The first guide groove 21 is basically the same as the first embodiment, except that the connection position with the second guide groove 23 is the same as the notch, and a seventh ridge is provided in front of the notch to prevent the balls 4 from entering the second guide groove 23 when passing through the notch after the external force is removed from the loose hand. In the present embodiment, the first ridge 211 is not provided in the first guide groove 21; the seventh ridge corresponds to the third ridge 241 of the first embodiment and the eighth ridge corresponds to the fourth ridge 242, except that in the present embodiment, the eighth ridge is higher than the seventh ridge so that after unlocking, the balls 4 enter the first guide groove 21 instead of the second guide groove 23, which is the most important feature of the present embodiment that is different from the first embodiment.

1. Process of pulling the rope assembly 3 outwards to customize the length and locking:

1.1 pulling the rope outwards from the locked state:

(1) Initially, the ball 4 is located at the most extreme position of the anti-rotation groove 24, and as the turntable 2 rotates, the ball 4 starts to rotate clockwise, and since the eighth ridge is higher than the seventh ridge, the ball 4 enters the first guide groove 21, and the preset distance is the length of the rope assembly 3 pulled outwards from the beginning to the completion of unlocking the rope assembly 3;

(2) When the end of the rope assembly 3 is pulled outwards, the balls 4 move in the first guide groove 21 in the clockwise direction;

(3) After the balls 4 enter the first guide groove 21, the balls 4 still move clockwise due to the initial speed of clockwise rotation by continuing to pull the rope assembly 3 outwards, and the balls can always circle in the first guide groove 21 until additional external force acting on the end of the rope assembly 3 is lost;

(4) When the user stops pulling the rope assembly 3 outwards, i.e. removes the external force, the potential energy stored in the reset member 5 rotates the turntable 2 in the opposite direction, so that the balls 4 start to move anticlockwise, and at this time, if the balls 4 are located behind the sixth ridge, i.e. do not cross the sixth ridge, the balls are converted into anticlockwise movement, and when moving to the connection position of the rotation stopping groove 24 and the first guide groove 21, since the first ridge 211 is not present in the embodiment, and the seventh ridge is present in the direction of the rotation stopping groove 24, the balls 4 still move in the first guide groove 21; if the ball 4 is located behind the sixth ridge, i.e. crosses the sixth ridge, the movement is changed to anticlockwise movement, and when the ball 4 moves to the connection position of the first guide groove 21 and the second guide groove 23, the ball 4 enters the second guide groove 23 to continue to move due to the existence of the sixth ridge;

(5) Then, when the ball 4 enters the rotation stopping groove 24 and reaches the end, the turntable 2 stops rotating under the action of the groove wall of the third guide groove 121, the ball 4 and the rotation stopping groove 24 of the shell 1, thereby achieving the locking purpose.

1.2, the length of the secondary rope assembly 3 is not matched, and in the fully accommodated state, the ball 4 cannot be located at the position of the rotation stopping groove 24, no matter the ball 4 is located in the first channel or the second channel, only the exposed end of the rope assembly 3 needs to be pulled outwards, the second step 1.1 (two) of this embodiment can be entered, and the subsequent steps are the same and are not repeated here.

2. And (3) the rope winding process:

(1) Starting from the locked state: initially, the ball 4 is located at the most extreme position of the rotation stopping groove 24, the rope assembly 3 is unlocked after being pulled out by a preset distance, the ball 4 enters the first guide groove 21, and at the moment, the movement direction of the ball 4 is clockwise;

(2) Releasing the hand to remove the force acting on the end of the rope assembly 3, the spring causing the ball 4 to start moving in a counter-clockwise direction; at the moment when the ball 4 enters the first guide groove 21, a clamping hand feeling exists, and the hand can be loosened at the moment;

(3) Due to the presence of the sixth ridge, the counterclockwise ball 4 enters the second guide groove 23 along the first guide groove 21 and then enters the rotation stopper;

(4) Repeating the steps (1) (2) (3) until the length of the rope assembly 3 is completely wound up, or wound up to a desired length.

From the above description, it will be understood that in the present embodiment, the operation of the rope assembly 3 corresponds to one-step winding in which a plurality of steps can be performed at a time during pulling out, and only one step can be performed during winding.

According to the utility model, the turntable, the reset piece and the winding and unwinding auxiliary mechanism are arranged, after the rope assembly is pulled outwards for a certain distance, the turntable is limited to roll the rope assembly back to the recovery roll, or the limitation of the turntable on winding the rope assembly is released after the rope assembly is pulled outwards for a preset distance, so that the rope assembly can be locked after being pulled out of a plurality of different lengths to the outside of the shell; and the ball assembly is connected to the outer end of the rope assembly to form a ball sports trainer which can be hung on places such as buildings, the training field is expanded, and the training of the ball feeling, the reaction speed, the eyesight, the concentration degree and the like is facilitated for a user.

The above examples illustrate only one embodiment of the utility model, which is described in more detail and is not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. A rope winding device comprises a shell (1) with an outlet (11), a winding mechanism arranged in the shell (1), and a rope component (3) with one end penetrating through the outlet; the method is characterized in that:

the winding mechanism comprises a rotary table (2) rotatably connected with the shell (1) and a reset piece (5), wherein the reset piece (5) is positioned between the shell (1) and the rotary table (2);

a containing groove (22) for containing the rope assembly (3) is formed in the circumferential direction of the turntable (2);

the device also comprises a winding and unwinding auxiliary mechanism which is used for limiting the turntable (2) to continuously pull the rope assembly (3) outwards and recycle the reel after the rope assembly (3) is pulled outwards for a preset distance.

2. Rope-winding device according to claim 1, characterized in that the retraction assistance mechanism comprises a first guide groove (21) and a second guide groove (23) provided on the turntable (2), a rotation-stopping groove (24), a third guide groove (121) provided on the housing (1), and a ball (4);

the first guide groove (21) is a circular or round-like guide groove, and the first guide groove (21) is arranged on the periphery of the second guide groove (23);

the second guide groove (23) is provided with a notch (231) connected with the first guide groove (21);

the rotation stopping groove (24) is positioned between the first guide groove (21) and the second guide groove (23) and is respectively connected with the first guide groove (21) and the second guide groove (23);

the third guide groove (121) is arranged on the inner wall of the shell (1) and is used for limiting the moving range of the ball (4) to one of the first guide groove (21), the second guide groove (23) and the rotation stopping groove (24).

3. Rope-winding device according to claim 2, characterized in that the second guide groove (23) is a circular or round-like channel;

a first ridge (211) is arranged in the first guide groove (21) and is close to the joint of the rotation stopping groove (24) and the first guide groove (21);

a second ridge (232) is arranged on the notch (231);

a third ridge (241) is arranged at the position where the rotation stopping groove (24) is connected with the first guide groove (21), and a fourth ridge (242) is arranged at the position where the rotation stopping groove (24) is connected with the second guide groove (23);

-the third ridge (241) is higher than the fourth ridge (242);

the first ridge (211) is higher than the third ridge (241).

4. A rope reel as claimed in claim 3, characterized in that a fifth ridge (233) is provided in the second guide groove (23) adjacent to the notch (231).

5. Rope-winding device according to claim 2, characterized in that the second guide groove (23) is an arc-shaped guide groove, the two ends of which are respectively connected with the first guide groove (21) and the rotation-stopping groove (24);

a sixth ridge is arranged in the first guide groove (21) and is positioned close to the notch (231);

a seventh ridge is arranged at the position where the rotation stopping groove (24) is connected with the first guide groove (21), and an eighth ridge is arranged at the position where the rotation stopping groove (24) is connected with the second guide groove (23);

the eighth ridge is higher than the seventh ridge.

6. A rope-winding device according to any one of claims 1-5, further comprising a swivel bracket (7) for supporting the turntable (2);

a pin column (15) is arranged on the inner wall of the shell (1);

the middle part of rotating support (7) with the middle part of carousel (2) all is equipped with changeing hole (26), rotating support (7) with carousel (2) pass through changeing hole (26) peg graft in on round pin post (15).

7. Rope-winding device according to any one of claims 1-5, characterized in that a number of supporting feet (25) are provided on the side of the turntable (2) facing away from the retraction assistance mechanism for reducing friction between the turntable (2) and the inner wall of the housing (1) when the turntable (2) is rotated;

the supporting feet (25) are uniformly distributed on the same circumference.

8. A ball game training machine, characterized by comprising a rope reel according to any one of the preceding claims 1-5, and a ball assembly (6) connected to the rope assembly (3);

a hanging part (14) is arranged on the outer wall of the shell (1).

9. Ball game training machine according to claim 8, characterized in that one of the string assembly (3) and the ball assembly (6) is provided with a hanging ring and the other is provided with a fastener cooperating with the hanging ring.

10. Ball game trainer according to claim 8, characterized in that the ball assembly (6) is a table tennis ball.

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