CN110384912B - a tennis cart - Google Patents

Abstract

The invention provides a tennis transport vehicle, which belongs to the field of sports equipment and includes a vehicle body and a tennis frame. The vehicle body includes a base and a pull rod. The pull rod is detachably connected to one end of the base, the bottom of the base is provided with rollers, and the tennis frame is placed on the base. The bottom of the base is provided with connecting bolts, the connecting bolts are arranged vertically, the bottom of the tennis frame is provided with threaded holes, and the tops of the connecting bolts are screwed into the threaded holes. The transport vehicle has a detachable body and a tennis frame. The tennis frame is placed in the tennis frame, and the body can move to transport the tennis ball; and the bottom of the tennis frame and the base are connected by bolts, so that during transportation The middle tennis frame can be fixed on the car body very stably, so that the tennis frame will not fall.

Description

a tennis cart

technical field

The invention relates to the field of sports equipment, in particular to a tennis transport vehicle.

Background technique

Tennis is known as the second largest ball game in the world, and the number of people participating in it is endless.

When playing tennis, because the field is too large and the tennis balls are fast, the tennis balls may be scattered in all corners of the field after being hit, and it is inconvenient to pick them up immediately. Therefore, more tennis balls need to be used, and they are picked up after all the tennis balls are played.

At present, the tools used to store tennis balls are mostly tennis bags, trolleys and other tools. The structure of the tennis bag is too simple, and it will fall when placed on the ground, making it inconvenient to take tennis balls from it.

SUMMARY OF THE INVENTION

The present invention provides a tennis transport vehicle, aiming at solving the above problems in the prior art.

The present invention is realized in this way:

A tennis transport vehicle includes a vehicle body and a tennis frame, the vehicle body includes a base and a pull rod, the pull rod is detachably connected to one end of the base, the bottom of the base is provided with rollers, and the tennis frame is placed on the The bottom of the base is provided with connecting bolts, the connecting bolts are arranged vertically, the bottom of the tennis frame is provided with threaded holes, and the tops of the connecting bolts are screwed into the threaded holes.

Further, a vertical connecting column is arranged in the middle of the tennis frame, the connecting column is a hollow structure, and a lifting rod is arranged in the connecting column; a limit bolt is arranged on the outer side of the bottom of the connecting column, and the The end of the limit bolt is fitted with the lift rod; the threaded hole is arranged at the bottom of the lift rod.

Further, the bottom of the tennis frame is a hollow structure, the side wall of the tennis frame is provided with a plurality of parallel strip-shaped holes, and the strip-shaped holes are arranged vertically.

Further, the end of the base is provided with a connecting groove, the connecting groove is provided with a connecting plate, the end of the connecting plate is hinged to the groove wall of the connecting groove, and the connecting plate is provided with a connecting head , the middle part of the connecting head is provided with an insertion hole, the cross section of the insertion hole is rectangular, and the end of the pull rod is inserted into the insertion hole.

Further, the tie rod includes an inner tube and an outer tube that are sleeved together, a sandwich is formed between the inner tube and the outer tube, the interior of the inner tube is a hollow structure and forms a accommodating cavity, and the bottom end of the inner tube has a communication connection. the inner opening; the bottom of the inner tube includes a baffle, the bottom of the inner tube is provided with a baffle, the baffle is parallel to the baffle, and the opposite sides of the inner tube are provided with strips The sliding hole, the end of the blocking rod passes through the sliding hole and extends into the interlayer;

The interlayer is provided with a push assembly, both ends of the blocking rod are connected with the push assembly, and the push assembly includes a connected push rod and a spring, and the end of the spring is connected to the outer The inner wall of the pipe, the end of the blocking rod is connected with the end of the ejector rod; the middle part of the blocking rod is connected with a connecting rod perpendicular to it, and the end of the connecting rod extends into the interlayer, inside the interlayer A push rod is provided, and one end of the push rod close to the connecting rod is provided with a push head, and the side of the push head facing the connecting rod is an inclined surface; the other end of the push rod is provided with a push block, and the outer A push groove is arranged on the pipe, and a part of the push block passes through the push groove;

When the push head is attached to the connecting rod, the distance between the blocking rod and the baffle is 5.8cm-6.2 cm; when the push head is separated from the connecting rod, the distance between the blocking rod and the baffle is 5.8cm-6.2cm; The distance is greater than 6.5cm.

Further, the connecting rod is detachably connected to the blocking rod, and the push head and the push rod are integral structures.

Further, the cross-section of the push rod is rectangular, the cross-section of the blocking rod is circular, and the cross-section of the ejector rod is circular.

Further, the bottom of the base has four rollers, and the rollers are universal wheels.

The tennis transport vehicle provided by the present invention has a detachably connected vehicle body and a tennis frame, where tennis balls are placed in the tennis frame, and the vehicle body can move to transport the tennis balls; Through the bolt connection, the tennis frame can be very stably fixed on the vehicle body during transportation, so that the tennis frame will not fall.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.

1 is a schematic structural diagram of a tennis transport vehicle provided by an embodiment of the present invention, where the tennis frame is at a lower position and the pull rod is inclined;

2 is a schematic front view of a base in a tennis cart provided by an embodiment of the present invention;

3 is a schematic structural diagram of a tennis cart provided by an embodiment of the present invention, where the tennis frame is at a higher position and the pull rod is vertical;

4 is a schematic front view of a pull rod in a tennis transport vehicle provided by an embodiment of the present invention;

5 is a schematic cross-sectional view of a pull rod in a tennis transporter provided by an embodiment of the present invention, at which time the pusher and the connecting rod are fitted;

6 is a schematic bottom view of a pull rod in a tennis transport vehicle provided by an embodiment of the present invention;

7 is a schematic cross-sectional view of a pull rod in a tennis transport vehicle provided by an embodiment of the present invention, at which time the pusher is separated from the connecting rod;

8 is a schematic front view of a push rod in a tennis transport cart provided by an embodiment of the present invention;

9 is a schematic top view of a base in a tennis cart provided by an embodiment of the present invention;

10 is a schematic bottom view of a tennis frame in a tennis cart provided by an embodiment of the present invention;

11 is a schematic cross-sectional view of a tennis frame in a tennis transport vehicle provided by an embodiment of the present invention.

Reference numerals summary: car body 11, tennis frame 12, base 13, tie rod 14, roller 15, connecting plate 16, connecting head 17, connecting groove 18, sliding groove 19, sliding rod 20, socket 21, inner tube 22, Outer tube 23, interlayer 24, baffle plate 25, stop rod 26, sliding hole 27, ejector rod 28, spring 29, connecting rod 30, push rod 31, push head 32, push block 33, push groove 34, groove 35, Sleeve 36, bump 37, blocking piece 38, snap ring 39, handle 40, snap hole 41, snap 42, connecting column 43, lifting rod 44, threaded hole 45, limit bolt 46, slot 47, connecting bolt 48, sink 49.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

See Figure 1-11.

This embodiment provides a tennis transport vehicle, which has a detachable and connected vehicle body and a tennis frame, where tennis balls are placed in the tennis frame, and the vehicle body can move to transport tennis balls; and the bottom of the tennis frame is connected to the tennis ball. The bases are connected by bolts, so that the tennis frame can be stably fixed on the vehicle body during transportation, so that the tennis frame will not fall.

As shown in Figures 1 and 2, this tennis transporter includes a car body 11 and a tennis frame 12, the car body 11 includes a base 13 and a pull rod 14, the bottom of the base 13 has rollers 15, and the tennis frame 12 is placed on the base 13; the base One end of 13 is provided with a connecting plate 16 , a connecting head 17 is provided on the connecting plate 16 , and one end of the pull rod 14 is detachably connected to the connecting head 17 . The bottom of the tennis frame 12 is rectangular, the top of the base 13 forms a rectangular sink 49 , and the bottom of the tennis frame 12 is placed in the sink 49 .

As shown in FIGS. 9-11 , a vertical connecting column 43 is arranged in the middle of the tennis frame 12, the connecting column 43 is a hollow structure, and a lifting rod 44 is arranged in the connecting column 43, and the bottom end of the lifting rod 44 extends to the connecting column 43; the outer side of the bottom of the connecting column 43 is provided with a limit bolt 46, and the end of the limit bolt 46 is fitted with the lifting rod 44; the middle of the base 13 is provided with a slot 47, so that the bottom of the lifting rod 44 can be inserted in in slot 47.

The bottom of the base 13 is also provided with a connecting bolt 48 , the top of which extends into the slot 47 ;

As shown in FIG. 2 and FIG. 9 , one end of the base 13 is provided with a connecting groove 18 , one end of the connecting plate 16 is hinged to the groove wall of the connecting groove 18 , the base 13 is provided with a sliding groove 19 along the horizontal direction, and one end of the sliding groove 19 Connecting to the connecting groove 18 , a sliding rod 20 is arranged in the sliding groove 19 ;

As shown in FIG. 2 and FIG. 3 , the connecting head 17 is cylindrical, and the connecting head 17 is perpendicular to the connecting plate 16 . The middle part of the connecting head 17 is provided with an insertion hole 21 , the cross section of the insertion hole 21 is rectangular, and the end of the pull rod 14 is Insert into jack 21. The outer side of the bottom end of the pull rod 14 is provided with a snap hole 41 , the connector 17 is provided with a snap 42 , the snap 42 is an elastic snap 42 , the snap 42 communicates with the jack 21 , and the snap 42 snaps when the pull rod 14 is inserted into the jack 21 . into the card hole 41 .

As shown in FIG. 5-FIG. 7, the tie rod 14 includes an inner tube 22 and an outer tube 23 that are sleeved together, an interlayer 24 is formed between the inner tube 22 and the outer tube 23, and the interior of the inner tube 22 is a hollow structure and forms a accommodating cavity, The bottom end of the inner tube 22 has an opening that communicates with its interior; the bottom of the inner tube 22 includes a baffle 25, and the bottom of the inner tube 22 is provided with a blocking rod 26, the blocking rod 26 is parallel to the baffle 25, and two opposite sides of the inner pipe 22 are provided. A strip-shaped sliding hole 27 is opened on the side, and the end of the blocking rod 26 passes through the sliding hole 27 and extends into the interlayer 24;

The interlayer 24 is provided with a push assembly, and both ends of the blocking rod 26 are connected with a push assembly. The push assembly includes a connected push rod 28 and a spring 29. The end of the spring 29 is connected to the inner wall of the outer tube 23, and the block rod The end of 26 is connected with the end of the ejector rod 28, and the ejector rod 28 is perpendicular to the blocking rod 26;

The middle of the blocking rod 26 is connected with a connecting rod 30 that is perpendicular to it. The connecting rod 30 and the top rod 28 are located on both sides of the blocking rod 26 respectively. One end of the push rod 31 close to the connecting rod 30 is provided with a push head 32, and the side of the push head 32 facing the connecting rod 30 is an inclined surface; the other end of the push rod 31 is provided with a push block 33, and the outer tube 23 is provided with a push groove 34 to push A part of the block 33 protrudes out of the push groove 34; when the push head 32 is attached to the connecting rod 30, the distance between the blocking rod 26 and the baffle 25 is 5.8cm-6.2 cm; when the push head 32 and the connecting rod 30 are separated, the blocking rod 26 and the distance between the baffle plate 25 is greater than 6.5cm.

The outer wall of the bottom end of the inner tube 22 is connected with the inner wall of the outer tube 23 , and the outer tube 23 is longer than the inner tube 22 . The end of the top rod 28 has a groove 35 , the groove 35 has an arc structure, and the end of the blocking rod 26 is placed in the groove 35 .

As shown in FIGS. 4 and 8 , the push groove 34 is L-shaped, and the push block 33 includes a sleeve 36 and a protrusion 37 . The sleeve 36 is sleeved on the outside of the push rod 31 , and the protrusion 37 is connected to the outside of the sleeve 36 . , the bump 37 passes through the push groove 34 ; the sleeve 36 can rotate relative to the push rod 31 , and the push rod 31 has a blocking piece 38 fitted with the end of the sleeve 36 .

As shown in FIG. 5 , the inner wall of the outer tube 23 is provided with a plurality of snap rings 39 , and the push rod 31 passes through the plurality of snap rings 39 , so that the push rod 31 can move linearly in the outer tube 23 . The top end of the pull rod 14 has an annular pull handle 40 .

The car body 11 is used in cooperation with the tennis frame 12 , and the car body 11 is used to place the tennis frame 12 and drive the tennis frame 12 to move. The tennis frame 12 is used for placing tennis balls, and it accommodates more tennis balls inside, so that the player can collect the balls after playing a frame of balls, reducing the number of times of picking up the balls and the time it takes to pick up the balls.

The vehicle body 11 has a base 13 and a tie rod 14. The base 13 is used to support the tennis frame 12, and a roller 15 is arranged on the base 13. The roller 15 enables the vehicle body 11 to move on the ground conveniently, so as to facilitate the removal of the vehicle body 11 from the player. Move the home to and from the tennis court, and move easily within the tennis court. Four rollers 15 can be set to make the support stable, and the rollers 15 can use universal wheels to make it easy to turn.

One end of the base 13 has a connecting plate 16 , and a connecting head 17 is arranged on the connecting plate 16 , and the connecting head 17 is used to connect the pull rod 14 . The bottom end of the pull rod 14 is detachably connected to the connecting head 17. When the vehicle body 11 needs to be pulled, the pull rod 14 is connected to the connecting head 17. When the vehicle body 11 does not need to be pulled, the pull rod 14 can be removed from the connecting head 17. By dismantling, the entire vehicle body 11 is small in size and can be put into the trunk of the car. A sinking groove 49 is arranged on the base 13, and the bottom of the tennis frame 12 is placed in the sinking groove 49 of the base 13, so that the edge of the sinking groove 49 can limit the tennis frame 12, so that the tennis frame 12 can be stably located on the base 13 , the tennis frame 12 will not fall during the movement of the vehicle body 11 .

The connecting plate 16 is set as a movable structure, so that the angle of the pull rod 14 can be adjusted when the pull rod 14 is pulled, which is convenient for applying force and convenient for turning.

The end of the base 13 is provided with a connecting groove 18 , and the connecting groove 18 is arranged at the corner of the end of the base 13 and communicates with the top surface and the end surface of the base 13 . One end of the connecting plate 16 is hinged at a higher position of the connecting groove 18, so that the free end of the connecting plate 16 can be turned up and down, and can be turned to a lower position, so that the pull rod 14 can be rotated to an inclined position, which is convenient for the user to apply pulling force, It is convenient to move the vehicle body 11 .

The end of the base 13 is provided with a chute 19 , and one end of the chute 19 is connected to the connecting slot 18 ; The chute 19 has a larger interior and a smaller opening, and a part of the sliding rod 20 extends from the side of the chute 19 so that people can adjust the sliding rod 20 from the outside of the chute 19 .

When the connecting plate 16 is turned to the horizontal state, the sliding rod 20 is pushed towards the direction of the connecting groove 18, so that a part of the sliding rod 20 is moved into the connecting groove 18, so that the sliding rod 20 supports it from the bottom of the connecting plate 16. , so that the connecting plate 16 can be supported by the sliding rod 20, so that the connecting plate 16 can be kept in a horizontal state. When the user is playing the ball, the tie rod 14 can be stably placed in a vertical state without shaking, which provides convenience for the user. Moreover, the position of the sliding rod 20 is convenient for users to adjust it with their feet, which is more convenient to use.

The outer contour of the pull rod 14 is a rectangular structure, and the connector 17 is provided with a socket 21 with a rectangular structure, so that the pull rod 14 will not rotate around the axis after being inserted into the socket 21, so that the pull rod 14 is stable. An elastic buckle 42 is provided on the connecting head 17 . After the end of the pull rod 14 is inserted into the socket 21 , the buckle 42 can be snapped into the locking hole 41 on the side of the pull rod 14 , so that the pull rod 14 and the connecting head 17 are stably connected. , so that the pull rod 14 can stably drive the base 13 to move. When it is necessary to remove the pull rod 14 , press the buckle 42 to separate it from the locking hole 41 , so that the pull rod 14 can be taken out from the insertion hole 21 .

The tie rod 14 is set as a structure in which the inner tube 22 and the outer tube 23 are nested together, and the blocking rod 26, the push rod 31 and other components are arranged, so that the tie rod 14 has the function of picking up tennis balls, and can also conveniently take out the tennis balls, so that the When picking up the tennis ball, the player does not need to bend down to pick up the tennis ball from the ground with his hands, which reduces the number of bending times, reduces the wear and tear of the muscles of the waist, and reduces the time for picking up the ball, which brings great convenience to the player.

The pull rod 14 has an outer tube 23 and an inner tube 22 that are sleeved together. The bottom of the tie rod 14 has an opening and communicates with the accommodating cavity inside the inner tube 22 . In this embodiment, the top of the tie rod 14 is a closed structure, so that the tennis ball will not fall from the top of the tie rod 14 . Of course, the top of the tie rod 14 can also be set as an open structure, so that the tennis balls contained in the inner tube 22 can be poured out from the top of the tie rod 14 .

An interlayer 24 is formed between the inner tube 22 and the outer tube 23 , so that various components can be arranged in the interlayer 24 . The accommodating cavity formed inside the inner tube 22 can be used to hold tennis balls, and the size of the accommodating cavity is set so that only one tennis ball can be accommodated in the same horizontal plane, so that the tennis balls are lined up in the accommodating cavity, so that there is no jamming between the tennis balls. Tight, easy to pour the tennis ball out.

The baffle 25 of the inner tube 22 is a plate on its side. A blocking rod 26 is movably arranged inside the inner tube 22 , and the blocking rod 26 cooperates with the baffle 25 to allow the tennis ball to pass through. In a normal state, the distance between the blocking rod 26 and the baffle 25 is 5.8cm-6.2cm when the pusher 32 is attached to the connecting rod 30, which is designed according to the size of the tennis ball.

The diameter of a standard tennis ball is about 6.5 cm, and the distance between the blocking rod 26 and the baffle 25 is set to the above size, so that the distance between the blocking rod 26 and the baffle 25 is slightly smaller than the diameter of the tennis ball. The distance between the two side panels adjacent to the baffle 25 is greater than 6.5 cm, so that the two side panels will not squeeze the tennis ball.

The side wall of the inner tube 22 is provided with a sliding hole 27 , so that the inner tube 22 at the end of the blocking rod 26 passes through the sliding hole 27 and extends into the interlayer 24 to be connected with the push assembly. The ejector assembly is used to push the blocking rod 26 , and the sliding hole 27 is arranged in a long strip shape, so that the blocking rod 26 has a tendency to move away from the baffle 25 under the thrust of the ejector assembly.

A connecting rod 30 is connected to the middle of the blocking rod 26, and the connecting rod 30 passes through the plate parallel to the baffle 25 and extends into the interlayer 24. The connecting rod 30 is perpendicular to the top rod 28, and the connecting rod 30 is parallel to the top rod 28. . This part of the interlayer 24 is provided with a push rod 31 , and the push rod 31 is used to adjust the position of the push rod 28 in cooperation with the push assembly. The push rod 31 is in the shape of a long strip, and its length direction is consistent with the length direction of the pull rod 14 . The bottom end of the push rod 31 has a push head 32, the end of the push head 32 facing the connecting rod 30 is an inclined surface, and the push head 32 is fitted with the connecting rod 30, the push head 32 is arranged between the outer tube 23 and the connecting rod 30, The spring 29 is compressed, so that the blocking rod 26 is in a position relatively close to the baffle 25, so that the distance between the blocking rod 26 and the baffle 25 is smaller than the diameter of the tennis ball.

The other end of the push rod 31 is provided with a push block 33 , through which the push rod 31 can be pulled or pushed, so that the push head 32 and the connecting rod 30 are attached or separated. The outer tube 23 is provided with a push groove 34 near its top end, and a part of the push block 33 extends out of the push groove 34 so that the push rod 31 can be adjusted from the outside of the connecting rod 30 .

In a normal state, the pusher 32 pushes the connecting rod 30 to make the pusher 32 or the push rod 31 fit with the connecting rod 30 , so as to compress the fit, so that the blocking rod 26 is closer to the baffle 25 . At this point, the pick-up action can be completed.

When picking up the tennis ball, move the pull rod 14 to the top of the tennis ball, push the pull rod 14 downward, so that the tennis ball is sandwiched between the blocking rod 26 and the blocking rod 25, and press the pull rod 14 forcefully, so that the tennis ball is slightly deformed, so that the tennis ball is slightly deformed. It can pass through the baffle bar 26 and baffle 25 and drill into the inner tube 22 . When picking up the next tennis ball, the tennis ball that enters later will push up the tennis balls already in the accommodating cavity, so that the tennis balls are collected one by one in the accommodating cavity, so that a plurality of tennis balls can be collected in the accommodating cavity at the same time. In this way, when picking up the tennis ball, it is only necessary to hold the tie rod 14 and squeeze the tennis ball on the ground, which is very convenient.

When the tennis ball in the connecting rod 30 needs to be put into the tennis frame 12 , the pull rod 14 is moved to the top of the tennis frame 12 . Pull the push block 33 to separate the push head 32 from the connecting rod 30, so that the blocking rod 26 moves away from the baffle 25 under the action of the push assembly, so that the distance between the blocking rod 26 and the baffle 25 is greater than 6.5cm , which is larger than the diameter of the tennis ball, so that the tennis ball can fall into the tennis frame 12 under the action of gravity.

After releasing the tennis ball inside the connecting rod 30, push the push block 33 toward the connecting rod 30, so that the push head 32 moves toward the connecting rod 30. Since the side of the push head 32 is an inclined structure, the push head 32 can push the connecting rod 30, and then pushes the blocking rod 26 to move toward the blocking plate 25, compresses the spring 29, and returns the blocking rod 26 to the initial position, so that the connecting rod 30 can be used to pick up the ball again.

With this arrangement, the tie rod 14 has the function of picking up the ball and releasing the ball, which greatly shortens the time spent picking up the ball, brings convenience to picking up the ball, and further provides convenience for playing tennis.

One end of the ejector rod 28 is fixedly connected to the end of the spring 29 , so that the ejector assembly can complete the work of pushing the blocking rod 26 . One end of the top rod 28 close to the blocking rod 26 has an arc-shaped groove 35, so that the end of the blocking rod 26 can be stably placed in the groove 35 of the top rod 28, so that the two are connected stably and the blocking rod 26 is moving. Both will not disengage when and after moving.

The push groove 34 is arranged in an L shape, so that it has a vertical part and a horizontal part, and the direction of the vertical part is consistent with the length direction of the connecting rod 30 . The horizontal portion is provided at the bottom end of the vertical portion. This arrangement enables the protrusion 37 of the push block 33 to be clamped at the horizontal portion of the L-shaped push groove 34, so that the push rod 31 does not automatically change its position, and the push head 32 can stably clamp the blocking rod 26 to the horizontal portion of the L-shaped push groove 34. Proper position, so that the ball can be picked up smoothly.

The push block 33 has a sleeve 36 and a convex block 37 . The sleeve 36 is sleeved on the outside of the push rod 31 , and the sleeve 36 can be rotated, so that the convex block 37 can easily move in the push groove 34 . In addition, a blocking sheet 38 that fits with the sleeve 36 is arranged on the push rod 31 , so that the sleeve 36 will not be separated from the push rod 31 .

A plurality of snap rings 39 are arranged on the inner wall of the outer tube 23, and the plurality of snap rings 39 are arranged at intervals along the length direction of the outer tube 23. Through the snap action of the snap rings 39, the push rod 31 can be restricted within a certain range. It can only do linear reciprocating motion, so that it cannot move in other directions. An annular handle 40 is provided at the end of the pull rod 14 , and the pull rod 14 can be pulled conveniently through the pull handle 40 .

A connecting column 43 and a lifting rod 44 are arranged on the tennis frame 12 , so that the tennis frame 12 can be lifted and lowered after being placed on the base 13 . When the vehicle body 11 is moving, the tennis frame 12 can be placed at a lower position to make it more stable; when the user is playing, the tennis frame 12 can be adjusted to a higher position, so that the The top is located at the crotch position of the human body, so that the player can easily take the tennis ball from the tennis frame 12, so that people do not have to bend down to pick up the tennis ball from the tennis frame 12, reduce the number of times the user bends over, and reduce the time spent on fetching the ball, Convenience is further enhanced.

The connecting column 43 is arranged vertically and protrudes inside the tennis frame 12 . The connecting column 43 has a hollow structure, so that the lifting rod 44 can be accommodated in the interior, so that the lifting rod 44 can be basically completely contained in the connecting column 43, and most of the lifting rod 44 can also be taken out. A slot 47 is provided in the middle of the base 13, so that the bottom of the lift rod 44 can be inserted into the slot 47. When the tennis frame 12 needs to be lifted, the limit bolt 46 is loosened, so that the lift rod 44 can be connected The column 43 moves inside, pulls the connecting column 43 down to a lower position, and twists the limit bolt 46, so that the limit bolt 46 locks the lifting rod 44 at this position, and is supported by the lifting rod 44 at this time. The tennis frame 12 can be in a higher position, which makes it very convenient for people to hold the ball.

The connecting column 43 and the lifting rod 44 are arranged in the middle of the tennis frame 12 , so that a single lifting rod 44 can also support the tennis frame 12 stably without uneven force.

A connecting bolt 48 for connecting the lifting rod 44 is provided on the base 13. After the bottom of the lifting rod 44 is inserted into the slot 47 of the base 13, the connecting bolt 48 is screwed so that the connecting bolt 48 tightly connects the lifting rod 44 to the base. 13 , so that the tennis frame 12 can be very stably connected to the base 13 , so that when the vehicle body 11 moves, or when the tennis frame 12 is in a high position, the tennis frame 12 can be very stable and will not fall from the base 13 .

The above description of the disclosed embodiments enables any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (5)

1. A tennis transport vehicle, characterized in that it includes a vehicle body and a tennis frame, the vehicle body includes a base and a pull rod, the pull rod is detachably connected to one end of the base, and the base bottom has rollers, so The tennis frame is placed on the base; the bottom of the base is provided with connecting bolts, the connecting bolts are arranged vertically, the bottom of the tennis frame is provided with threaded holes, and the top of the connecting bolt is screwed to the inside the threaded hole; A vertical connecting column is arranged in the middle of the tennis frame, the connecting column is a hollow structure, and a lifting rod is arranged in the connecting column; the outer side of the bottom of the connecting column is provided with a limit bolt, and the limit bolt The end of the lifting rod is fitted with the lifting rod; the threaded hole is arranged at the bottom of the lifting rod; The end of the base is provided with a connecting groove, the connecting groove is provided with a connecting plate, the end of the connecting plate is hinged to the groove wall of the connecting groove, the connecting plate is provided with a connecting head, the The middle part of the connector is provided with an insertion hole, the cross section of the insertion hole is rectangular, and the end of the pull rod is inserted into the insertion hole; The tie rod includes an inner tube and an outer tube that are sleeved together, a sandwich is formed between the inner tube and the outer tube, the interior of the inner tube is a hollow structure and forms a accommodating cavity, and the bottom end of the inner tube has a connection with the interior. opening; the bottom of the inner tube includes a baffle, the bottom of the inner tube is provided with a blocking rod, the blocking rod is parallel to the baffle, and the opposite sides of the inner tube are provided with strip-shaped sliding holes , the end of the blocking rod passes through the sliding hole and extends into the interlayer; The interlayer is provided with a push assembly, both ends of the blocking rod are connected with the push assembly, and the push assembly includes a connected push rod and a spring, and the end of the spring is connected to the outer The inner wall of the pipe, the end of the blocking rod is connected with the end of the ejector rod; the middle part of the blocking rod is connected with a connecting rod perpendicular to it, and the end of the connecting rod extends into the interlayer, inside the interlayer A push rod is provided, and one end of the push rod close to the connecting rod is provided with a push head, and the side of the push head facing the connecting rod is an inclined surface; the other end of the push rod is provided with a push block, and the outer A push groove is arranged on the pipe, and a part of the push block passes through the push groove; when the push head is attached to the connecting rod, the distance between the blocking rod and the blocking plate is 5.8cm-6.2cm; When the push head is separated from the connecting rod, the distance between the blocking rod and the blocking plate is greater than 6.5 cm. 2 . The tennis cart according to claim 1 , wherein the bottom of the tennis frame is a hollow structure, the side wall of the tennis frame is provided with a plurality of parallel strip holes, and the strip holes Set vertically. 3 . The tennis cart according to claim 1 , wherein the connecting rod is detachably connected to the blocking rod, and the push head and the push rod are integral structures. 4 . 4 . The tennis cart according to claim 1 , wherein the cross section of the push rod is rectangular, the cross section of the blocking rod is circular, and the cross section of the top rod is circular. 5 . 5 . The tennis cart according to claim 1 , wherein the bottom of the base has four rollers, and the rollers are universal wheels. 6 .

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