CN114699756A - Tennis precision training device with auxiliary positioning mechanism - Google Patents

Abstract

The invention discloses a tennis accuracy training device with an auxiliary positioning mechanism, which belongs to the technical field of tennis training auxiliary equipment and is provided with a base and a connecting rod movably connected to the base; the tail end of the connecting rod is connected with a tennis ball through an elastic rope, and a tension sensor and an angle sensor are arranged on the base; the positioning seat is arranged between the base and the ground; the positioning seat is provided with a loading cavity capable of containing a load and used for selectively adding a balance weight, and the top end of the positioning seat is detachably and fixedly connected with the base through a dismounting structure so as to enable the base to take root at any position on the ground.

Description

A tennis precision training device with an auxiliary positioning mechanism

technical field

The invention relates to the field of tennis training auxiliary equipment, in particular to a tennis precision training device with an auxiliary positioning mechanism.

Background technique

Tennis is becoming more and more popular. For most beginners, they often hit a lot of tennis balls in the training process, and the serving volume will be very large, and there are often no fences in many areas, resulting in limited training. Tennis training devices are either too expensive and not suitable for ordinary people, or too simple and can only meet basic needs;

Although there is also a corresponding tennis training device in the prior art, the device includes a base, an elastic rope and a tennis ball with a buckle, and the elastic rope is connected between the base and the tennis ball with a buckle; the base is provided with an angle sensor and a tennis ball with a buckle. Tension sensor, although the device can provide a single tennis training device without a court, which greatly improves the level of tennis training and increases the fun of training, but when used, the base can be unreliably connected to the ground. If The base is permanently fixed to the ground, which is not conducive to the trainer's use of fragmented time for training, which reduces the utilization rate of the device and greatly reduces the trainer's interest;

Therefore, in view of the above problems, it is necessary for the present invention to provide a tennis accuracy training device with an auxiliary positioning mechanism, which is simple in structure, easy to use, can be used in any field, and is convenient for trainers to use fragmented time to train.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the defects of the prior art and provide a tennis precision training device with an auxiliary positioning mechanism.

In order to achieve the above object, the present invention provides the following technical solutions:

The invention discloses a tennis precision training device with an auxiliary positioning mechanism, comprising:

a base and a connecting rod movably connected to the base;

The end of the connecting rod is connected with a tennis ball through an elastic rope, and a tension sensor and an angle sensor are arranged on the base; and

a positioning seat arranged between the base and the ground;

The positioning seat has a load-bearing cavity capable of accommodating a load for selectively increasing the counterweight, and the top of the positioning seat is detachably and fixedly connected to the base through a detachable structure, so that the base can be rooted on the ground anywhere. Location.

Further, the dismantling structure includes a connecting part arranged at the lower part of the base and a coupling part connected with the connecting part and formed on the positioning seat, and a clamping mechanism is installed inside the positioning seat for for the coupling part to hold the connection part.

Further, two grooves are symmetrically arranged on the upper surface of the positioning seat, the grooves are the coupling parts, and a downward protrusion is formed on the lower part of the base corresponding to the position of the grooves for extending into the The connecting portion in the groove and coupled with the groove.

Further, the coupling part and/or the side wall of the holding block of the clamping mechanism is provided with a protrusion extending in the horizontal direction for being embedded in the accommodating groove of the connecting part.

Further, the clamping mechanism includes the holding block and the sliding block slidably connected with the positioning base, and a sliding block installed on the positioning base to drive the sliding block to displace and make the holding block linked. A clamping arm, the holding block is in contact with the connecting portion on the side away from the slider.

Further, the slider has a first guide structure for linear displacement along the direction a, and a second guide structure for turning the slider along the displacement force in the direction a, and the second guide structure is connected to the holder. Grip slide connection.

Further, the clamping arm includes a cam in contact with the slider and a handle for driving the cam to rotate, the handle is exposed outside the positioning seat, wherein the slider has a connection between the slider and the cam. The elastic component between the positioning seats is used to drive the sliding block to reset.

Further, a positioning plate is arranged under the positioning seat, an elastic band for forming the load-bearing chamber is connected between the positioning seat and the positioning plate, and the projected area of the positioning plate on the horizontal plane is not less than Describe the positioning seat area.

Further, it also includes a plurality of retractable top rods, the top ends of the top rods are in abutting contact with the positioning seat, and the bottom ends of the top rods are abutting and contacting with the positioning plate.

Further, a semi-circular card seat is fixedly connected to the top of the base, the card seat is provided with a slideway, and the bottom end of the connecting rod is placed in the slideway and rotates with the card seat through a fixed shaft. connected, so that the connecting rod rotates 180° in the slideway with the fixed shaft as the center.

In the above technical solution, the present invention provides a tennis precision training device with an auxiliary positioning mechanism, which has the following beneficial effects:

Compared with the prior art, the tennis precision training device with an auxiliary positioning mechanism designed by the present invention includes a base and a positioning seat. The positioning seat has a load-bearing cavity, through which the weight is selectively increased, and the top of the positioning seat passes through The dismantling structure and the base can be detachably and fixedly connected, so that the base uses the load-bearing cavity of the positioning seat to increase its own weight, and the base can be rooted at any position on the ground without damaging the ground, which is convenient for beginners to train in any venue. It has the advantages of simple structure, convenient use, and the device can be used in any place.

Description of drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only described in the present invention. For some of the embodiments, those of ordinary skill in the art can also obtain other drawings according to these drawings.

1 is an axonometric view of a tennis precision training device with an auxiliary positioning mechanism disclosed in the present invention;

2 is a front view of the base of a tennis precision training device with an auxiliary positioning mechanism disclosed in the present invention;

3 is an axonometric view of a positioning seat of a tennis precision training device with an auxiliary positioning mechanism disclosed in the present invention;

4 is a top view of a tennis precision training device with an auxiliary positioning mechanism disclosed by the present invention in a state where the positioning seat clamps the base;

5 is a top view of a tennis precision training device with an auxiliary positioning mechanism disclosed by the present invention in a state where the positioning seat releases the base;

6 is a top view of the internal structure of the positioning seat of a tennis precision training device with an auxiliary positioning mechanism disclosed by the present invention;

7 is a schematic structural diagram of a slider of a tennis precision training device with an auxiliary positioning mechanism disclosed in the present invention;

8 is a schematic structural diagram of a grip block of a tennis precision training device with an auxiliary positioning mechanism disclosed in the present invention.

Description of reference numbers:

base 10; elastic cord 11; connecting rod 12; card holder 13;

Positioning seat 20; connecting part 21; first accommodating groove 211; second accommodating groove 212; coupling part 22; protrusion 221;

clamping mechanism 30; holding block 31; slider 32; first guide structure 33; first guide groove 331; second guide structure 34; second guide groove 341; cam 35; handle 36;

Positioning plate 40 ; elastic band 41 ; load-bearing cavity 42 ; ejector rod 43 .

Detailed ways

In order to make those skilled in the art better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

See Figure 1;

A tennis precision training device with an auxiliary positioning mechanism is invented, comprising: a base 10 and a positioning seat 20;

The top of the base 10 is fixedly connected with a semi-circular card seat 13, the card seat 13 is provided with a slideway, the bottom end of the connecting rod 12 is placed in the slideway, and is rotatably connected with the card seat 13 through a fixed shaft, so that the connecting rod 12 is The fixed shaft rotates 180° in the slideway as the center. The end of the connecting rod 12 is connected with a tennis ball through the elastic rope 11, and the base 10 is provided with a tension sensor and an angle sensor. The angle sensor is connected, and the card holder 13 is rotatably connected with the horizontal angle sensor. The base 10 also has a PLC system and a voice system. The values of the angle sensor and the tension sensor are recorded through the PLC system. The voice system is connected with the PLC system, and can broadcast the fastest ball speed and azimuth of the hit tennis ball in real time to ensure that the practitioners precise training;

The positioning seat 20 is arranged between the base 10 and the ground, and the lower part of the positioning seat 20 has a load-bearing cavity 42 for selectively increasing the counterweight. The counterweight can be heavy iron blocks, square bricks, or Other solid objects that can be obtained locally, of course, can also be barreled objects containing water or fine sand, etc., which is convenient for obtaining materials. The seat 10 is rooted in any position on the ground, which is convenient for beginners to train in any venue;

See Figure 1-3;

The disassembly structure includes a connecting part 21 and a coupling part 22;

The lower part of the base 10 is symmetrically provided with a connecting portion 21 , and a coupling portion 22 is formed on the positioning base 20 . The base 10 extends into the coupling portion 22 of the positioning base 20 through the connecting portion 21 and is connected with the coupling portion 22 . A clamping mechanism 30 is installed inside, and the coupling portion 22 holds the connecting portion 21 through the holding block 31 of the clamping mechanism 30 . Ensure the connection reliability of the base 10 and the positioning seat 20, prevent the base 10 from flying out during the tennis hitting process, and avoid hurting people;

See Figures 2 and 3;

Preferably, two grooves are symmetrically arranged on the upper surface of the positioning seat 20, the groove is the coupling part 22, and the lower part of the base 10 is formed with a downward protrusion corresponding to the groove position for extending into the groove and coupling with the groove. the connection part 21. The holding block 31 of the clamping mechanism 30 tightens the connecting parts 21 from the inner sides of the two connecting parts 21;

See Figures 4 and 5;

Preferably, the side wall of the holding block 31 of the coupling part 22 and/or the clamping mechanism 30 is provided with a protrusion 221 extending in the horizontal direction for being embedded in the accommodating groove of the connecting part 21 .

Specifically, in this embodiment, protrusions 221 may be separately provided on the side walls of the coupling portion 22 or the holding block 31 of the clamping mechanism 30 , or may be provided on the side walls of the coupling portion 22 and the holding block 31 of the clamping mechanism 30 . At the same time, protrusions 221 are provided. In order to ensure the symmetry and reliability of the structure, in this embodiment, the coupling portion 22 and the side walls of the holding block 31 of the clamping mechanism 30 are provided with protrusions 221 extending in the horizontal direction. The protrusions 221 are inserted into the accommodating grooves of the connecting portion 21. The accommodating grooves include a first accommodating groove 211 and a second accommodating groove 212. The cross-section of the first accommodating groove 211 is a rectangular structure. The cross-sectional shape of the groove 212 is a trapezoidal structure, and the opening width of the second accommodating groove 212 is smaller than the width of the bottom wall, so that the protrusions 221 on the holding block 31 can quickly enter the second accommodating groove 212. In this structure, when When the base 10 is pulled, the protrusion 221 is engaged with the accommodating groove, which effectively prevents the risk of the base 10 flying out from the top of the positioning seat 20;

See Figures 4 and 5;

The clamping mechanism 30 includes a holding block 31, a sliding block 32 and a clamping arm;

The holding block 31 is sleeved on both sides of the sliding block 32, the sliding block 32 is slidably connected with the positioning base 20, and the clamping arm is installed on the positioning base 20. The block 31 is in contact with the connecting portion 21 on the side away from the slider 32 . When in use, the connecting part 21 is held or released by the driving holding block 31 of the clamping arm, as shown in FIG. 35 is placed inside the positioning seat 20, and is connected to the positioning seat 10 through the camshaft. The top of the camshaft is exposed to the outside of the positioning seat 10, and is fixedly connected with the handle 36. When in use, the cam 35 is driven to rotate by driving the handle 36, so as to squeeze The sliding block 32 is displaced, wherein the sliding block 32 has an elastic component connected between the sliding block 32 and the positioning seat 20 , and the elastic component is a compression spring in the prior art, and the sliding block 32 is driven to reset by the compression spring.

See Figures 4 and 5;

Preferably, the slider 32 has a first guide structure 33 for linear displacement in the direction a, and a second guide structure 34 for turning the displacement force of the slider 32 in the direction a. The second guide structure 34 is connected to the holding block 31 Slide to connect.

Specifically, as shown in FIG. 6 , the first guide structure 33 is configured as an isosceles triangle projection formed on the positioning seat 20 , and as shown in FIG. 7 , the two ends of the slider 32 are provided with first guides in a triangular structure. The groove 331 cooperates with the first guide structure 33 through the first guide groove 331, so as to accurately guide the sliding block 32 to move back and forth along the direction a;

Referring to FIG. 4 , the structure of the second guide structure 34 is a cylindrical positioning column. Referring to FIG. 8 , the holding block 31 is provided with a second guide groove 341 , the second guide groove 341 is a long hole, and the second guide The axis of the longitudinal direction of the groove 341 forms an inclined angle with the displacement direction of the slider 32, so that under the cooperation of the second guide structure 34 and the second guide groove 341, the displacement force of the slider 32 along the direction a is turned and acts on the holding block. On the gripping block 31, the gripping block 31 intrudes into the coupling portion 22 to realize the gripping of the connecting portion 21;

See Figure 1;

Preferably, a positioning plate 40 is arranged under the positioning seat 20 , an elastic band 41 for forming a load-bearing cavity 42 is connected between the positioning seat 20 and the positioning plate 40 , and the projected area of the positioning plate 40 on the horizontal plane is not less than the area of the positioning seat 20 . Specifically, the elastic belt 41 is a rubber belt with elastic force in the prior art, and the counterweight object is held tightly by the rubber pad, and the area of the positioning plate 40 is not less than that of the positioning seat 20, which can better support the counterweight object;

In order to ensure the overall rigidity between the positioning seat 20 and the positioning plate 40 , the device further includes a plurality of retractable ejector rods 43 . . Specifically, the opposite surfaces of the positioning seat 20 and the positioning plate 40 are provided with a plurality of positioning holes, the ejector rod 43 includes a first rod body and a second rod body, and a third rod body threadedly connected between the first rod body and the second rod body, The third rod is driven to expand or contract the top rod 43, and the structure is supported between the positioning seat 20 and the positioning plate 40 by the top rod 43, which effectively improves the overall structural rigidity of the device, thereby helping to ensure that the tension sensor on the base 10 and the Angle sensor accuracy;

In the above technical solution, the present invention provides a tennis precision training device with an auxiliary positioning mechanism;

When in use, the base 10 and the positioning seat 20 can be carried separately. During assembly, the connecting part 21 on the base 10 enters the coupling part 22 of the positioning seat 20 from one side, the handle 36 is rotated, and the cam 35 drives the slider 32 to drive and hold it. The gripping block 31 is linked, so that after the protrusion 221 of the coupling part 22 is engaged with the accommodating groove of the connecting part 21, the coupling part 22 holds the connecting part 21 to realize the fixed connection between the positioning seat 20 and the base 10;

Beneficial effects:

Compared with the prior art, the tennis precision training device with an auxiliary positioning mechanism designed by the present invention includes a base and a positioning seat. The positioning seat has a load-bearing cavity, through which the weight is selectively increased, and the top of the positioning seat passes through The dismantling structure and the base can be detachably and fixedly connected, so that the base uses the load-bearing cavity of the positioning seat to increase its own weight, and the base can be rooted in any position on the ground without damaging the ground, which is convenient for beginners to train in any venue. It has the advantages of simple structure, convenient use, and the device can be used in any place.

Certain exemplary embodiments of the present invention have been described above by way of illustration only, and it is needless to say that those skilled in the art may The described embodiments are modified. Accordingly, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of the claims of the present invention.

Claims (10)

1. The utility model provides a tennis precision trainer with assistance-localization real-time mechanism which characterized in that includes:

the device comprises a base (10) and a connecting rod (12) movably connected to the base (10);

the tail end of the connecting rod (12) is connected with a tennis ball through an elastic rope (11), and a tension sensor (13) and an angle sensor are further arranged on the base (10); and

a positioning seat (20) arranged between the base (10) and the ground;

the positioning seat (20) is provided with a loading cavity (42) capable of containing a load for selectively adding a balance weight, and the top end of the positioning seat (20) is detachably and fixedly connected with the base (10) through a dismounting structure so as to enable the base (10) to root at any position on the ground.

2. The tennis accuracy training device with the auxiliary positioning mechanism as claimed in claim 1, wherein;

the disassembling structure comprises a connecting part (21) arranged at the lower part of the base (10) and a coupling part (22) which is connected with the connecting part (21) and formed on the positioning seat (20), wherein a clamping mechanism (30) is arranged in the positioning seat (20) and used for enabling the coupling part (22) to hold the connecting part (21).

3. The tennis accuracy training device with the auxiliary positioning mechanism as claimed in claim 2, wherein;

two grooves are symmetrically arranged on the upper surface of the positioning seat (20), the grooves are the coupling parts (22), and downward bulges are formed on the lower part of the base (10) corresponding to the positions of the grooves and used for extending into the grooves and connecting parts (21) coupled with the grooves.

4. The tennis accuracy training device with the auxiliary positioning mechanism as claimed in claim 2 or 3, wherein;

the side wall of the coupling part (22) and/or the holding block (31) of the clamping mechanism (30) is provided with a protrusion (221) extending along the horizontal direction and used for being embedded into the accommodating groove of the connecting part (21).

5. The tennis accuracy training device with the auxiliary positioning mechanism as claimed in claim 4, wherein;

the clamping mechanism (30) comprises a holding block (31), a sliding block (32) connected with the positioning seat (20) in a sliding mode, and a clamping arm arranged on the positioning seat (20) and used for driving the sliding block (32) to move and enabling the holding block (31) to be linked, wherein the holding block (31) is far away from the sliding block (32) and is in contact with the connecting portion (21).

6. The tennis accuracy training device with the auxiliary positioning mechanism as claimed in claim 5, wherein;

the sliding block (32) is provided with a first guide structure (33) which enables the sliding block to linearly displace along the direction a and a second guide structure (34) which enables the sliding block (32) to displace along the direction a and apply force to turn, and the second guide structure (34) is connected with the holding block (31) in a sliding mode.

7. The tennis accuracy training device with the auxiliary positioning mechanism as claimed in claim 5, wherein;

the clamping arm comprises a cam (35) in contact with the sliding block (32) and a handle (36) for driving the cam (35) to rotate, the handle (36) is exposed outside the positioning seat (20), and the sliding block (32) is provided with an elastic part connected between the sliding block (32) and the positioning seat (20) and used for driving the sliding block (32) to reset.

8. The tennis accuracy training device with the auxiliary positioning mechanism as claimed in claim 1, wherein;

a positioning plate (40) is arranged below the positioning seat (20), an elastic band (41) used for forming the load cavity (42) chamber is connected between the positioning seat (20) and the positioning plate (40), and the projection area of the positioning plate (40) on the horizontal plane is not smaller than the area of the positioning seat (20).

9. The tennis accuracy training device with the auxiliary positioning mechanism as claimed in claim 8, wherein;

the positioning device is characterized by further comprising a plurality of telescopic ejector rods (43), wherein the top ends of the ejector rods (43) are abutted to and contacted with the positioning seat (20), and the bottom ends of the ejector rods (43) are abutted to and contacted with the positioning plate (40).

10. The tennis accuracy training device with the auxiliary positioning mechanism as claimed in claim 1, wherein;

the top end of the base (10) is fixedly connected with a semicircular clamping seat (13), the clamping seat (13) is provided with a slide way, and the bottom end of the connecting rod (12) is arranged in the slide way and is rotatably connected with the clamping seat (13) through a fixed shaft, so that the connecting rod (12) rotates 180 degrees in the slide way by taking the fixed shaft as a center.

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