Tennis multi-ball continuous supply track

Abstract

The utility model discloses tennis multi-ball continuous supply track frame, is mainly related to tennis track frame. Including tennis track and base, the lower extreme of tennis track is installed with continuous ball -poking plate, the lower surface of tennis track is equipped with adjusting structure, the adjusting structure includes rack, the rack is fixedly connected with tennis track, both sides of rack all are fixedly connected with slide bar, the surface sliding connection of two slide bars has support pipe, the inner wall of support pipe is slidingly connected with rack, the lower extreme of support pipe is fixedly connected with base, one side fixedly connected with two fixed plates of support pipe, the inner wall swing joint of two fixed plates has the pivot, the circular arc surface fixedly connected with gear of pivot. The utility model has the beneficial effect that: through the stable adjustment of the height of tennis track to tennis track can be rotated handle, and tennis track can be reset to the lowest point fast, and the tennis of convenient filling again is improved training efficiency.

Description

Technical Field

[0001] This utility model relates to the field of tennis ball track frame technology, and in particular to a tennis ball continuous supply track frame. Background Technology

[0002] A tennis track rack is a support device with a track system that can continuously send many tennis balls to a specific position, allowing trainees to practice hitting the ball continuously while standing in place.

[0003] Existing technologies, such as the utility model patent with publication number CN221713536U, disclose a tennis ball storage rack for training serves. This patent includes a placement platform, a support fixed to the lower surface of the platform, a support plate fixed to the right side of the support, a storage box placed on the upper surface of the support plate, and a mounting plate fixed to the left side of the support. A serving mechanism for training serves is mounted on the mounting plate, and a ball control mechanism is mounted on the placement platform. The serving mechanism includes a housing, which is fixed to the left side of the mounting plate. This tennis ball storage rack for training serves, through the cooperation of a motor, can drive a rotating plate to rotate, thereby driving a support rod to rotate, thus adjusting the angle of the serving tube. Through the cooperation of a connecting pipe, the tennis ball can be passed into the first ball inlet tube, thus entering the serving tube. Through the cooperation of a first electric push rod, a push plate can be moved, thereby pushing the tennis ball and launching it from the serving tube, facilitating training with athletes.

[0004] The inventors discovered the following problems in the use of tennis ball supply track racks during their daily work: the process of adjusting the height of the tennis ball launcher is cumbersome and laborious, usually requiring manual lifting of the track while tightening multiple bolts for fixation, which is inconvenient and inefficient; when it is necessary to lower the track to the lowest point to reload the tennis balls, the adjustment mechanism needs to be operated in reverse, which is cumbersome and time-consuming, reducing the continuity of training and resulting in low tennis training efficiency. Utility Model Content

[0005] The purpose of this invention is to solve the shortcomings of the existing technology, such as the cumbersome, time-consuming, and labor-intensive operation of height adjustment and reloading of tennis balls.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a tennis ball multi-ball continuous feeding track frame, including a tennis ball track and a base. A continuous ball-feeding plate is installed at the lower end of the tennis ball track. An adjustment structure is provided on the lower surface of the tennis ball track. The adjustment structure includes a rack, which is fixedly connected to the tennis ball track. Sliding rods are fixedly connected to both sides of the rack. A support tube is slidably connected to the surfaces of the two sliding rods. The inner wall of the support tube is slidably connected to the rack. The lower end of the support tube is fixedly connected to the base. Two fixing plates are fixedly connected to one side of the support tube. A rotating shaft is movably connected to the inner walls of the two fixing plates. A gear is fixedly connected to the arc surface of the shaft, and the tooth surface of the gear meshes with a rack. A handle is fixedly connected to one end of the shaft. A fixed frame is fixedly connected to the surface of the support tube at the position corresponding to the gear. A baffle is rotatably connected to the inner wall of the fixed frame. A limit plate is fixedly connected to the lower surface of one of the fixed plates. Two round rods are slidably connected to the inner wall of the limit plate. A limit frame is fixedly connected to the upper end of the two round rods. The two ends of the limit frame are provided with slots. The inner wall of one of the slots is engaged with the shaft. A spring is fixedly connected to the lower surface of the limit frame. The end of the spring away from the limit frame is fixedly connected to the limit plate.

[0007] The above-mentioned components achieve the following effects: the height of the tennis track can be stably adjusted by rotating the lever, and the tennis track can be quickly reset to the lowest point, making it convenient to reload tennis balls and improving training efficiency.

[0008] Preferably, an observation plate is fixedly connected to the side of the support tube near the fixing plate, and the observation plate is a transparent acrylic plate.

[0009] The effect achieved by the above components is that the transparent acrylic viewing plate allows the user to directly observe the position of the internal rack, making it easy to understand the approximate height of the current adjustment.

[0010] Preferably, the surface of the observation plate is provided with a scale.

[0011] The effect achieved by the above components is that the scale on the surface of the observation plate provides users with a quantitative reference for height adjustment, making it more accurate and convenient to set and reproduce a specific launch height.

[0012] Preferably, the arc surface of the handle is rotatably connected to a sleeve.

[0013] The effect achieved by the above components is that the sleeve, as a rotating handle of the lever, increases the operator's point of force application, making rotation easier and more comfortable, while protecting the operator's hands.

[0014] Preferably, a screw is threaded into the side of the support tube away from the gear, and a number of anti-slip protrusions are fixedly connected to the end of the screw away from the support tube.

[0015] The above components achieve the following effects: after adjusting to the desired height, tightening the screw will cause its end to press against the rack, further enhancing the stability of the adjustment structure; the anti-slip protrusions increase friction, making it easier for the user to turn the screw.

[0016] Preferably, a protective pad, which is a rubber pad, is fixedly connected to the upper surface of the base at the position corresponding to the rack.

[0017] The effects achieved by the above components are as follows: the rubber protective pads act as a buffer, absorbing impact force, protecting the base and the lower end of the rack from impact damage, and reducing noise.

[0018] In summary, the beneficial effects of this utility model are as follows: In this invention, an adjustment structure is set up so that rotating the lever drives the gear to rotate, which in turn drives the rack and tennis ball track to slide upward along the support tube, achieving stepless adjustment of the tennis ball track launch height. The gear, together with the baffle and the fixing frame, forms a one-way ratchet structure (the gear can pass the baffle when rotating counterclockwise, but is blocked by the baffle when rotating clockwise), which effectively prevents the tennis ball track from accidentally sliding down under its own weight and the weight of the tennis ball, maintaining a stable set height. When it is necessary to lower the tennis ball track to the lowest point to load the tennis ball, pressing down the limiting frame causes its slot to disengage from the rotating shaft, which moves the gear away from the rack. The track quickly returns to the lowest point due to gravity, greatly improving loading efficiency and enabling convenient and stable height adjustment. It features reliable self-locking to prevent sliding down; rapid reset and loading; compact structure; and precise guidance. Attached Figure Description

[0019] Appendix Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Appendix Figure 2 This is a schematic diagram of the adjustment structure of this utility model; Appendix Figure 3 yes Figure 2 Enlarged view of point A; Appendix Figure 4 This is a partial structural diagram of the adjustment structure of this utility model.

[0020] The following are the labels in the attached diagram: 1. Tennis track; 2. Continuous ball-feeding plate; 3. Base; 4. Adjustment structure; 401. Rack; 402. Slide bar; 403. Support tube; 404. Observation plate; 405. Scale; 406. Fixing plate; 407. Rotating shaft; 408. Gear; 409. Handle bar; 410. Sleeve; 411. Fixing frame; 412. Baffle; 413. Screw; 414. Limiting plate; 415. Round rod; 416. Limiting frame; 417. Spring; 418. Protective pad. Detailed Implementation

[0021] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0022] Reference Figure 1 As shown, this utility model provides a technical solution: a tennis ball multi-ball continuous ball supply track frame, including a tennis ball track 1 and a base 3, a continuous ball feeding plate 2 is installed at the lower end of the tennis ball track 1, and an adjustment structure 4 is provided on the lower surface of the tennis ball track 1.

[0023] The specific settings and functions of its adjustment structure 4 will be explained below.

[0024] Reference Figure 2 , Figure 4As shown in this embodiment: the adjusting structure 4 includes a rack 401, which is fixedly connected to the tennis track 1. Slide rods 402 are fixedly connected to both sides of the rack 401. Support tubes 403 are slidably connected to the surfaces of the two slide rods 402. The inner wall of the support tube 403 is slidably connected to the rack 401. The lower end of the support tube 403 is fixedly connected to the base 3. Two fixing plates 406 are fixedly connected to one side of the support tube 403. A rotating shaft 407 is movably connected to the inner wall of the two fixing plates 406. A gear 408 is fixedly connected to the arc surface of the rotating shaft 407. The tooth surface of the gear 408 meshes with the rack 401. A handle 409 is fixedly connected to one end of the rotating shaft 407, and the surface of the support tube 403 corresponds to the gear. A fixed bracket 411 is fixedly connected at position 408. A baffle 412 is rotatably connected to the inner wall of the fixed bracket 411. A limit plate 414 is fixedly connected to the lower surface of one of the fixed plates 406. Two round rods 415 are slidably connected to the inner wall of the limit plate 414. A limit frame 416 is fixedly connected to the upper end of the two round rods 415. The limit frame 416 has slots at both ends. The inner wall of one slot is engaged with the rotating shaft 407. A spring 417 is fixedly connected to the lower surface of the limit frame 416. The end of the spring 417 away from the limit frame 416 is fixedly connected to the limit plate 414. The height of the tennis track 1 can be stably adjusted by rotating the lever 409. The tennis track 1 can be quickly reset to the lowest point. To facilitate reloading of tennis balls and improve training efficiency, an observation plate 404 is fixedly connected to the side of the support tube 403 near the fixed plate 406. The observation plate 404 is a transparent acrylic plate, which allows the user to directly observe the position of the internal rack 401 to understand the approximate height of the current adjustment. A scale 405 is provided on the surface of the observation plate 404, which provides the user with a quantitative reference for height adjustment, making it more accurate and convenient to set and reproduce a specific launch height. A sleeve 410 is rotatably connected to the arc surface of the handle 409. The sleeve 410 serves as a rotating grip for the handle 409, increasing the operator's point of force and making rotation more effortless. The adjustment structure 4 is designed to be more stable and comfortable, while also protecting the operator's hands. A screw 413 is threaded into the side of the support tube 403 away from the gear 408. Several anti-slip protrusions are fixedly connected to the end of the screw 413 away from the support tube 403. After adjusting to the required height, tightening the screw 413 will cause its end to press against the rack 401, further enhancing the stability of the adjustment structure 4. The anti-slip protrusions increase friction, making it easier for the user to rotate the screw 413. A protective pad 418 is fixedly connected to the upper surface of the base 3 at the position corresponding to the rack 401. The protective pad 418 is a rubber pad. The rubber protective pad 418 plays a buffering role, absorbing impact force and protecting the base 3 and the lower end of the rack 401 from impact damage, while also reducing noise.

[0025] Detailed Instructions for Use: By setting the adjustment structure 4, first fill the tennis ball track 1 with multiple tennis balls. Then, rotate the handle 409 counterclockwise. The handle 409 drives the rotating shaft 407 to rotate along the fixed plate 406. During this process, the limit bracket 416 limits the position of the rotating shaft 407, preventing it from moving away from the support tube 403. The rotating shaft 407 drives the gear 408 to rotate. The gear 408, through its toothed blocks, drives the rack 401 and the slide bar 402 to move upward along the inner wall of the support tube 403. The rack 401 then drives the entire tennis ball track 1 to move upward until it reaches the appropriate height. During the counterclockwise rotation of gear 408, it continuously actuates baffle 412, causing baffle 412 to repeatedly rotate away from fixed frame 411. When the user releases handle 409, rack 401 and tennis track 1 move downwards under gravity, causing gear 408 to rotate clockwise. At this time, baffle 412 and fixed frame 411 cooperate to obstruct gear 408. After the tennis balls in tennis track 1 are used up, press down on limit frame 416. Limit frame 416 drives round rod 415 to move along limit plate 414. Spring 417 is compressed, waiting for shaft 40... 7. When fully disengaged from the slot of the limiting bracket 416, the operating shaft 407 and gear 408 move along the inner wall of the fixed plate 406 away from the support tube 403, causing the gear 408 to disengage from the rack 401 and the baffle 412. At this time, the rack 401 and the tennis ball track 1 fall to their lowest point, and the user reloads the tennis ball. The transparent acrylic observation plate 404 allows the user to directly observe the position of the internal rack 401 to understand the approximate height of the current adjustment. The scale 405 on the surface of the observation plate 404 provides the user with a quantitative reference for height adjustment. This makes setting and reproducing a specific launch height more accurate and convenient. The sleeve 410 serves as the rotating handle of the lever 409, increasing the operator's point of force application, making rotation easier and more comfortable, while protecting the operator's hands. After adjusting to the desired height, tightening the screw 413 allows its end to press against the rack 401, further enhancing the stability of the adjustment structure 4. The anti-slip protrusions increase friction, making it easier for the user to rotate the screw 413. The rubber protective pad 418 acts as a buffer, absorbing impact force and protecting the base 3 and the lower end of the rack 401 from impact damage, while also reducing noise.

Claims

1. A tennis ball continuous feeding track frame, comprising a tennis ball track (1) and a base (3), characterized in that: A continuous ball-grabbing plate (2) is installed at the lower end of the tennis track (1). An adjustment structure (4) is provided on the lower surface of the tennis track (1). The adjustment structure (4) includes a rack (401). The rack (401) is fixedly connected to the tennis track (1). Slide rods (402) are fixedly connected to both sides of the rack (401). A support tube (403) is slidably connected to the surfaces of the two slide rods (402). The inner wall of the support tube (403) is slidably connected to the rack (401). The lower end of the support tube (403) is fixedly connected to the base (3). Two fixing plates (406) are fixedly connected to one side of the support tube (403). A rotating shaft (407) is movably connected to the inner wall of the two fixing plates (406). A gear (408) is fixedly connected to the arc surface of the rotating shaft (407). The tooth surface of the gear (408) is connected to the rack (401). 01) The rotating shaft (407) is fixedly connected to a handle (409) at one end. The support tube (403) is fixedly connected to a fixed frame (411) at the position corresponding to the gear (408). The inner wall of the fixed frame (411) is rotatably connected to a baffle (412). A limiting plate (414) is fixedly connected to the lower surface of one of the fixed plates (406). Two round rods (415) are slidably connected to the inner wall of the limiting plate (414). A limiting frame (416) is fixedly connected to the upper end of the two round rods (415). The limiting frame (416) has slots at both ends. The inner wall of one of the slots is engaged with the rotating shaft (407). A spring (417) is fixedly connected to the lower surface of the limiting frame (416). The end of the spring (417) away from the limiting frame (416) is fixedly connected to the limiting plate (414).

2. The tennis ball continuous feeding track frame according to claim 1, characterized in that: An observation plate (404) is fixedly connected to the side of the support tube (403) near the fixing plate (406), and the observation plate (404) is a transparent acrylic plate.

3. The tennis ball continuous feeding track frame according to claim 2, characterized in that: The surface of the observation plate (404) is provided with a scale (405).

4. The tennis ball continuous feeding track frame according to claim 1, characterized in that: The handle (409) is rotatably connected to the sleeve (410) on its arc surface.

5. The tennis ball continuous feeding track frame according to claim 1, characterized in that: A screw (413) is threaded into the side of the support tube (403) away from the gear (408), and a number of anti-slip protrusions are fixedly connected to the end of the screw (413) away from the support tube (403).

6. The tennis ball continuous feeding track frame according to claim 1, characterized in that: A protective pad (418) is fixedly connected to the upper surface of the base (3) at the position corresponding to the rack (401). The protective pad (418) is a rubber pad.

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