CN206152234U - Ball and service car are picked up to semi -automatic tennis - Google Patents

Abstract

The utility model relates to a semi-automatic tennis ball picking and serving car, which includes a car body, an underframe and wheels, and also includes: a roller, a guide rail, a ball box, a ball storage basket and a ball serving device. The vertical connecting rod on the bottom frame is connected by rotation. The guide rail is placed at the rear end of the roller, installed on the bottom frame, and extends upward to the front end of the ball storage basket, forming an arc structure. Open groove bar, the ball storage basket is installed at the front end of the car body, a small hole is provided at the bottom, connected to the ball-serving device through a hose, and Velcro is attached to the surface of the roller. The utility model can conveniently and quickly pick up tennis balls scattered in a large range, which greatly reduces the workload of field staff and unnecessary physical consumption of people in sports training, saves time and effort, and improves the efficiency of picking up balls at the same time , reliable in work, easy to use, suitable for popularization and promotion, and can be widely configured and used in various sports training venues.

Description

A semi-automatic tennis ball picking and serving vehicle

technical field

The utility model relates to a ball picking device, in particular to a semi-automatic tennis ball picking and serving car, which is suitable for collecting a large number of tennis balls in tennis training venues and belongs to the technical field of sports auxiliary equipment.

Background technique

In recent years, tennis has become increasingly popular, and more and more people are willing to devote themselves to tennis. However, in tennis training, especially when single-player serving training, a lot of tennis balls need to be used, because the area of the tennis court is relatively large, and the tennis balls are often scattered in a large range. It takes time to squat on the ground or bend over to pick up the ball, collect the tennis balls, and perform a new round of practice, which consumes energy and wastes time, and the efficiency of picking up the ball is also low.

In order to improve the efficiency of picking up the ball, some tennis ball picking devices have also appeared on the market, but there are not many types, and most of them are composed of pull rings, springs, ball barrels, retaining bars, pins, pull ring barrels, iron wires and other components. , the production process is complex, installation and disassembly are inconvenient, and the capacity is small, and the practicability is not strong. In the process of picking up the ball, it is easy to apply too much force and damage the tennis ball, which reduces the service life of the tennis ball and brings great harm to the staff who pick up the ball. inconvenient.

To sum up, it is inconvenient to rely on manpower to pick up the ball in the existing tennis ball, which not only consumes time, but also consumes physical strength and low efficiency. Simultaneously, existing tennis ball pick-up device has the shortcoming of little capacity, inconvenient operation.

Contents of the invention

Aiming at the above-mentioned shortcomings of the prior art, the purpose of this utility model is to provide a semi-automatic tennis ball picking and serving cart with convenient operation and high ball picking efficiency, which solves the inconvenience of manually picking up the ball in the prior art and the fatigue of picking up the ball. , the low efficiency of picking up the ball and the small capacity and poor practicability of the existing tennis ball picking device.

In order to achieve the above object, the utility model provides a semi-automatic tennis ball picking and serving car, which includes a car body, an underframe and wheels, and is characterized in that it also includes: a roller, a guide rail, a ball box, a ball storage basket and a ball serving device. The drum is rotatably connected to the vertical connecting rod placed on the bottom frame through its central axis, the guide rail is installed on the bottom frame and placed on the rear side of the drum, and the guide rail is in an arc structure and extends upward to the upper side of the ball storage basket; The guide rail is provided with a strip-shaped opening slot for the ball box to run. The ball storage basket is installed at the front end of the car body, and the ball serving device is arranged below the ball storage basket. The ball serving device is connected, and the surface of the roller is also attached with Velcro.

Preferably, the end of the ball box close to the drum is in the shape of a comb, and the ball box is provided with a comb-tooth structure protruding toward the drum. The comb-tooth structure presents a state where the front end is sharp and the rear end is gradually wide and thick.

Preferably, the ball launching device has a fairway, a hitting cylinder, a fixing seat, a driving device, and a left and right direction adjustment device. The barrel moves, the fixed seat is covered with a spring, and the hose communicates with the ballway.

Preferably, the driving device further includes a speed-regulating motor for adjusting the stroke of the spring, and the speed-regulating motor is connected with the spring.

Preferably, the lower side of the serving device is provided with a base plate, the base plate is provided with a chute, the end of the ball lane has a service opening, and the left and right direction adjustment device is arranged on the front side of the service opening, and the left and right direction adjustment device includes a first cam, a swing motor , a rubber band and a limit rod, the output end of the swing motor is connected to one end of the first cam and drives the first cam to rotate, the swing motor is installed on the motor seat, and the limit rod is vertically installed on the side wall of the ball serving device On both sides of the swing motor, the lower end of the limit rod is placed in the chute, the limit rod and the motor seat are connected by a rubber band, and the length of the first cam is greater than the distance between the swing motor and the limit rod.

Preferably, a second cam and an elevation motor are provided between the ball launching device and the bottom plate, the output end of the elevation motor is connected to the second cam, and the second cam can adjust the direction of serving the ball up and down through the elevation motor.

Preferably, the driving device includes a reduction gear, an occlusal gear, a rotating gear and a driving motor for serving the ball, the occlusal gear is meshed with the rack at the bottom of the batting cylinder, the occlusal gear is coaxially connected with the reduction gear, and the reduction gear is meshed with the rotating gear , the output end of the ball driving motor is meshed with the rotating gear and drives the rotating gear to rotate.

Preferably, protruding teeth are provided on the circumferential surface of the meshing gear, and only part of the circumferential surface is provided with protruding teeth.

Preferably, the ball serving device is equipped with a battery and a controller, and the elevation motor, ball driving motor, swing motor and speed regulating motor are all controlled by the controller.

Preferably, the wheels and the rollers are connected in series through a belt.

The utility model semi-automatic tennis ball picking and serving cart can use the roller to stick the tennis ball, and complete the loading and pouring of the ball through the ball box, and transport the tennis ball to the ball storage basket. The invention can conveniently and quickly pick up the tennis balls scattered in a large range, greatly reducing the workload of field workers and unnecessary physical exertion of people in sports training, saving time and effort, and improving the efficiency of picking up balls at the same time. The utility model is reliable in work, convenient in use, suitable for popularization and popularization, and can be widely used in various sports training venues.

The conception, specific structure and technical effects of the present utility model will be further described below in conjunction with the accompanying drawings, so as to fully understand the purpose, characteristics and effects of the present utility model.

Description of drawings

Figure 1: A three-dimensional perspective view of the structure of the semi-automatic tennis ball picking and serving cart of the utility model;

Figure 2: a top view of the semi-automatic tennis ball picking and serving vehicle of the utility model;

Fig. 3: A three-dimensional schematic diagram of the serving device of the present invention;

Fig. 4: The front view of the serving device of the present utility model;

Fig. 5: The top view of the serving device of the present utility model;

Figure 6: The left view of the ball serving device of the present utility model.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Apparently, the described embodiments are some of the embodiments of the present utility model, but not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As shown in Fig. 1 and Fig. 2, a kind of semi-automatic tennis ball picking and serving car provided by the utility model comprises car body 1, underframe 2, wheel 3, roller 4, guide rail 5, ball box 6, ball storage basket 7 and the ball-serving device 8, the drum 4 is rotatably connected with the vertical connecting rod 21 placed on the chassis 2 through its central axis, the guide rail 5 is placed on the rear end of the drum 4 and installed on the chassis 2, and the guide rail 5 is The arc structure extends upwards to the ball storage basket 7 upper sides. The guide rail 5 is provided with a strip-shaped opening groove 51 for the operation of the ball box 6. The ball storage basket 7 is installed on the front end of the car body 1, and the bottom is provided with a small hole 71. The small hole 71 is connected with the ball-serving device 8 through a hose 9. The surface of the cylinder 4 is also provided with Velcro. The end of the ball box 6 close to the drum 4 is in the shape of a comb, because the ball box 6 is provided with a comb structure 61 protruding toward the drum, and the comb tooth structure presents a state where the outer end is sparser and the inner end is denser.

The utility model semi-automatic tennis pick-up and serve cart includes wheels 3, which can be pushed lightly to make the pick-up cart start to move, which is convenient for quick movement in the field. The surface of the roller 4 of the utility model is provided with a layer of Velcro, which can stick the tennis balls, and can conveniently and quickly collect a plurality of tennis balls scattered in a large range during the moving process of the ball picking cart.

The ball box 6 of the utility model can move on the guide rail 5 to complete the actions of loading and pouring the ball. The end of the ball box 6 close to the roller 4 is comb-shaped, sparse on the outside and dense on the inside, which can effectively peel off the tennis balls from the roller 4 and drop them into the ball box 6, and then run on the guide rail 5 to transport the ball box 6 to the ball storage basket 7 On the upper side, tennis balls are poured into the ball storage basket 7 to store tennis balls. The guide rail 5 is provided with double guide rails, so that the ball box 6 can run on it more stably. The comb tooth structure is slender and sharp at the front end, very close to the Velcro, and the rear end gradually becomes wider and thicker. This comb tooth structure can slowly remove the tennis ball and prevent the tennis ball from jumping up due to force.

During implementation, when the ball needs to be picked up, push the semi-automatic tennis ball picking and serving cart of the utility model to the field where the tennis balls are scattered. The tennis ball is peeled off from the roller to complete the ball loading, and then the ball box moves on the guide rail, and the tennis ball is transported to the ball storage basket, and the ball is poured, and the tennis ball is stored in the ball storage basket. The utility model adopts the roller with Velcro to automatically pick up the ball in a rolling manner, which is convenient and quick, and will not cause damage to the tennis ball, will not reduce the service life of the tennis ball, and has high tennis picking efficiency. In addition, after picking up the balls, the tennis balls can also be poured into the ball storage basket to store the tennis balls, which has a large capacity and is convenient to use.

The ball-serving device 8 has a fairway 811, a batting cylinder 810, a fixing seat 812, a driving device and a left-right direction adjustment device. The batting cylinder 810 is arranged between the fairway 811 and the fixed seat 812, the driving device is arranged on the lower side of the batting cylinder 810 and drives the batting cylinder 810 to move laterally, the fixed seat 812 is provided with a spring 83, the hose 9 and the fairway 811 connected. The tennis ball enters the fairway 811 through the flexible pipe 9, and the batting cylinder 810 moves toward the fixed seat 812 and compresses the spring 83. After being compressed to a certain extent, the batting cylinder 810 is released, and instantly produces a large elastic force to hit the tennis ball to launch the tennis ball. The ball-serving device also includes a speed-regulating motor for adjusting the stroke of the spring 83. The speed-regulating motor is connected with the spring 83. After the stroke of the spring 83 is adjusted, the compression force of the spring 83 changes, thereby changing the hitting force produced by the spring 83. The speed of the tennis serve also changes accordingly.

The lower side of the ball-serving device is provided with a base plate 10, and the base plate 10 is provided with a chute 817, and the chute 817 is arc-shaped. The end portion of the fairway 811 has a tee opening 86, and the left-right direction adjustment device is located at the front side of the tee-off opening. end is connected with one end of the first cam 81 and drives the first cam 81 to rotate, the swing motor 82 is installed on the motor base 815, and the limit rod 85 is vertically installed on the side wall of the ball-serving device 8 and is arranged on both sides of the swing motor 82. On the side, the lower end of the limit rod 85 is placed in the chute. The limit rod 85 is connected with the motor base 815 by a rubber band 84, and the length of the first cam 81 is greater than the distance between the swing motor 82 and the limit rod 85, so when the first cam 81 rotates, the first cam 81 After the end hits the limit rod 85, the force applied to the limit rod 85 will push the limit rod to slide left and right in the chute, and then push the fairway 811 of the ball-serving device to move left and right, so that the flight track of the tennis ball after serving will change left and right. .

A second cam 11 is arranged between the serving device 8 and the base plate 10, and the second cam 11 can adjust the serving direction up and down. The second cam 11 is also driven by an elevation motor 110, and the output end of the elevation motor 110 is connected with the second cam 11. The elevation angle motor 110 drives the second cam to rotate, and the second cam makes the ball-serving device 8 swing up and down, and the flight trajectory of the tennis ball after the ball is served changes up and down. Therefore, in combination with the left and right direction adjustment device and the second cam, the serving direction of the tennis ball can be made to face any direction.

Driving device comprises reduction gear 87, rotating gear 813, meshing gear 816 and ball drive motor 814, and meshing gear 816 is meshed with the rack at the bottom of batting cylinder 810 and is connected, and meshing gear 816 is coaxially connected with reduction gear 87, and reduction gear 87 is connected with Rotating gear 813 meshes and connects, and the output end of serving driving motor 814 meshes and connects with rotating gear 813 and drives rotating gear 813 to rotate, and rotating gear 813 drives reduction gear 87 to rotate, and reduction gear 87 drives meshing gear 816 to rotate. The circumferential surface of the meshing gear 816 is provided with protruding teeth, and only part of the circumferential surface is provided with protruding teeth, and the circumferential surface of the other part is smooth. The rack at the bottom of the ball barrel, the hitting barrel 810 moves backward (the right side of FIG. 4 ), and the hitting barrel 810 moves to compress the spring 83 to store energy. When the last tooth on the meshing gear 816 engages the rack, the barrel position is just in time for a tennis ball to fall into the fairway 811. Continue to rotate the serving driving motor 814, and the meshing gear 816 also rotates clockwise. When the last tooth breaks away from the rack, the meshing gear 816 cannot bite the rack early, and the potential energy of the compression spring 83 is released immediately, and the spring 83 resets, and the batting cylinder 810 instantly hits the tennis ball to the left to serve. And the power of serving the ball is realized by the length of the compressed spring (the speed-regulating motor for adjusting the power of serving the ball is installed at the rear of the spring). When the engaging gear 816 continues to rotate, the first teeth on its surface continue to engage the rack below the batting cylinder, and the batting cylinder 810 continues to compress the spring 83 to the right, thereby reciprocating.

Adjust the driving motor 814 for serving the ball, and adjust the compression length of the spring 83 by changing the stroke length of the motor, thereby changing the striking force of the serving machine. Principle: Spring Hooke's law F=k*L, the elastic force F is equal to the spring coefficient k multiplied by the compression stroke length L.

Serving device 8 is also equipped with storage battery and controller, and storage battery supplies power to all motors in the whole device. According to the setting of the program, the controller realizes serving respectively through 4 motors, and adjusts the strength and angle of serving.

The wheel 3 and the drum 4 of the utility model are connected in series through a belt. In the specific implementation, when the number of tennis balls is too small, the tennis balls cannot reach the ball box, so the wheels and rollers are linked in series by adding belts, so that the ball picking effect is better.

The utility model can clean up the tennis balls scattered in the field without bending over very conveniently and quickly, which greatly reduces the workload of the field staff and the unnecessary physical exertion of people in sports training, and saves time and effort , Also improved the efficiency of picking up the ball simultaneously, owing to shortening the time of picking up the ball, increased the practice time of the practitioner, also just improved the efficiency of tennis practice. The utility model is reliable in work, convenient in use, suitable for popularization and popularization, and can be widely used in various sports training venues. The utility model adopts the semi-automatic tennis ball picking and serving cart, which is easy to use, can pick up a plurality of tennis balls at the same time, is convenient for the tennis balls to be taken upside down, and greatly improves the ball picking efficiency of the user.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the present utility model. within the scope of the new protection.

Claims (10)

1. a kind of semi-automatic tennis picks up ball and service car, including car body (1), underframe (2) and wheel (3), it is characterised in that also wrap Include：Cylinder (4), guide rail (5), ball case (6), storage ball basket (7) and ball serving device (8), the cylinder (4) by central shaft with put Vertical connecting rod (21) on underframe (2) is rotatably connected, and the guide rail (5) is installed on underframe (2) and is placed in after cylinder (4) Side, the curved structure of guide rail simultaneously extends upwardly to storage ball basket (7) upside；Guide rail (5) is provided with the bar shaped run for ball case (6) and opens Mouth groove (51), storage ball basket (7) is installed on car body (1) front end, and ball serving device stores up ball basket (7) bottom located at the lower section of storage ball basket Portion is provided with an aperture (71), and aperture is connected by flexible pipe (9) with ball serving device (8), and cylinder (4) surface is accompanied by magic Patch.

2. semi-automatic tennis according to claim 1 picks up ball and service car, it is characterised in that the ball case (6) is near rolling Cylinder (4) one end is in comb shape, and the comb structure (61) of cylinder protrusion is provided with ball case, and it is sharp that comb structure presents front end The gradually roomy and abundant state in rear end.

3. semi-automatic tennis according to claim 1 and 2 picks up ball and service car, it is characterised in that the ball serving device (8) With alley (811), batting cylinder (810), fixed seat (812), driving means, left and right directions adjusting apparatus, batting cylinder is located at ball Between road and fixed seat, driving means are located at batting cylinder downside and drive batting cylinder movement, and spring (83) is arranged with fixed seat, Flexible pipe is connected with alley.

4. semi-automatic tennis according to claim 3 picks up ball and service car, it is characterised in that be provided with the downside of ball serving device Base plate (10), base plate is provided with chute, and the end of alley (811) has service mouth (86), and left and right directions adjusting apparatus are located to be sent out The front side of ball mouth, left and right directions adjusting apparatus include the first cam (81), oscillating motor (82), rubber band (84) and gag lever post (85), the output end of oscillating motor is connected and drives the first cam rotation, oscillating motor to be arranged on electricity with one end of the first cam On support, gag lever post is vertically installed on the side wall of ball serving device and located at the both sides of oscillating motor, and the lower end of gag lever post is placed in In the chute, connected by rubber band (84) between gag lever post and motor cabinet, the length of the first cam more than oscillating motor with Spacing between gag lever post.

5. semi-automatic tennis according to claim 4 picks up ball and service car, it is characterised in that the ball serving device and base plate Between be provided with the second cam (11) and elevation angle motor (110), the output end of elevation angle motor is connected with the second cam, and the second cam can Service direction is adjusted up and down by elevation angle motor.

6. semi-automatic tennis according to claim 5 picks up ball and service car, it is characterised in that the driving means include subtracting Fast gear (87), occlusion gear (816), rotate gear (813) and service motor (814), occlusion gear and batting cylinder bottom The tooth bar engagement connection in portion, occlusion gear is coaxially connected with reduction gearing, and reduction gearing is connected with rotate gear engagement, and service is driven The output end of dynamic motor is connected and drives rotate gear to rotate with rotate gear engagement.

7. semi-automatic tennis according to claim 6 picks up ball and service car, it is characterised in that the driving means also include For adjusting the buncher of spring travel, the buncher is connected with spring (83).

8. semi-automatic tennis according to claim 1 picks up ball and service car, it is characterised in that the wheel (3) and cylinder (4) linked by belt series connection.

9. semi-automatic tennis according to claim 7 picks up ball and service car, it is characterised in that the ball serving device (8) is matched somebody with somebody Battery and controller are equipped with, the elevation angle motor, service motor, oscillating motor and buncher receive the controller Control.

10. semi-automatic tennis according to claim 6 picks up ball and service car, it is characterised in that the occlusion gear (816) Periphery be provided with the teeth of protrusion, and the periphery of only part is provided with the teeth of protrusion.