Ball sweeping device

Abstract

A kind of ball sweeping matching device, it includes driver and ball sweeping unit, ball sweeping unit includes transmission assembly, guide assembly and ball sweeping rod.The driver, transmission assembly and guide assembly are all used to be installed in the court, the driver is connected with the ball sweeping rod by the transmission assembly, and the ball sweeping rod is slidably connected with the guide assembly;The driver is used to drive the ball sweeping rod to move in the width direction of the court by the transmission assembly, to push tennis on the court by the ball sweeping rod.It can improve the efficiency of tennis collection, reduce tennis collection time length.

Description

Technical Field

[0001] This utility model relates to the field of tennis ball collection technology, and more specifically, to a ball sweeping device. Background Technology

[0002] In tennis training, a coach and a student often spar. Due to the significant skill gap, it's often impossible to reach a competitive level, with each rally averaging only 2 seconds. To improve efficiency, after 100-200 shots, a tennis ball collector is used to retrieve the balls. The same applies to training with a ball machine. However, because tennis courts are large and tennis balls are widely scattered, traditional handheld tennis ball collectors are inefficient, requiring significant physical exertion from the collector. The time spent retrieving balls is more than twice the time spent playing, causing users to waste a lot of time and energy on ball retrieval. To address this, various new ball-retrieval robots have been developed. However, existing ball-retrieval robots use a point-pickup principle (picking up individual balls sequentially), and their efficiency is less than one-third that of human retrieval, falling far short of the requirements.

[0003] The inventors discovered during their research that existing tennis ball collecting devices have at least the following drawbacks:

[0004] It is inefficient and time-consuming. Utility Model Content

[0005] The purpose of this invention includes, for example, providing a ball-sweeping device that can improve the efficiency of tennis ball collection and reduce the time required to collect tennis balls.

[0006] The embodiments of this utility model can be implemented as follows:

[0007] In a first aspect, this utility model provides a ball-sweeping accessory device, including a driver and a ball-sweeping unit, wherein the ball-sweeping unit includes a transmission assembly, a guide assembly, and a ball-sweeping rod, wherein:

[0008] The driver, the transmission assembly, and the guide assembly are all used for installation on the court. The driver is connected to the sweeping stick through the transmission assembly, and the sweeping stick is slidably connected to the guide assembly.

[0009] The driver is used to move the sweeping stick in the width direction of the court via the transmission assembly, so as to push the tennis ball located on the court using the sweeping stick.

[0010] In an optional embodiment, the transmission assembly includes two transmission units, both of which are connected to the driver. The sweeping stick is also connected to both transmission units, and the driver is used to drive both ends of the sweeping stick to move in the same direction through the two transmission units.

[0011] In an optional embodiment, each of the transmission units includes a traction rope and a plurality of support wheels, the plurality of support wheels being installed on the court and arranged at intervals, the traction rope being wound around the plurality of support wheels, the traction rope being drivenly connected to the driver and being used to slide relative to the support wheels under the drive of the driver; the sweeping stick is connected to the traction rope.

[0012] In an optional embodiment, the plurality of support wheels includes a limiting wheel and a steering wheel. In the extension direction of the traction rope, the limiting wheel is located between the driver and the steering wheel. The traction rope is wound around the driver and the steering wheel, and the traction rope is in contact with the limiting wheel at the same time, so that the extension direction of the traction rope between the driver and the limiting wheel has an angle with the extension direction of the traction rope between the limiting wheel and the steering wheel.

[0013] In an optional embodiment, two limiting grooves are provided on the outer peripheral surface of the limiting wheel, and the two limiting grooves are arranged at intervals along the axial direction of the limiting wheel; a steering groove is provided on the outer peripheral surface of the steering wheel; and the traction rope is simultaneously wound around the two limiting grooves and the steering groove.

[0014] In an optional embodiment, the transmission unit further includes a sheath for securing to the court, with a portion of the traction rope passing through the sheath.

[0015] In an optional embodiment, the support wheel includes a mounting base and a wheel body, the mounting base being fixed to the court, the wheel body being rotatably connected to the mounting base, and the traction rope being wound around the outer circumferential surface of the wheel body.

[0016] In an optional embodiment, the driver includes a motor and a drive wheel, the motor being connected to the drive wheel, and the traction rope being wound around the drive wheel.

[0017] In an optional embodiment, the guiding assembly includes two guide members, both of which are positioned on the court and can be spaced apart along the length of the court, and the sweeping stick is slidably connected to both guide members.

[0018] In an optional implementation, there are two ball-sweeping units, which are distributed on both sides of the center net of the court, and each ball-sweeping unit is used to push the tennis ball in the corresponding half of the court.

[0019] The beneficial effects of this utility model embodiment include, for example:

[0020] In summary, the ball-sweeping device provided in this embodiment can be directly placed on the court or integrated into the court design. When balls need to be retrieved, the driver is activated, which transmits power to the sweeping stick through the transmission component. The sweeping stick slides along the width of the court under the guidance of the guide component. As the sweeping stick slides across the court, it sweeps the tennis balls to one side of the court's width. After the balls are gathered, the tennis ball collector can move along the length of the court. The small area the tennis ball collector needs to travel greatly reduces the difficulty of collection, thereby improving tennis ball collection efficiency and shortening the time required for collection. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the ball-sweeping device used in this embodiment;

[0023] Figure 2 This is a schematic diagram of the driver from a first-view perspective in this embodiment;

[0024] Figure 3 This is a schematic diagram of the driver from a second perspective in this embodiment;

[0025] Figure 4 for Figure 1 A magnified view of point A in the diagram;

[0026] Figure 5 for Figure 1 A magnified view of point B in the diagram;

[0027] Figure 6 for Figure 1 A magnified view of point C in the diagram;

[0028] Figure 7 for Figure 1 A magnified view of a portion of point D in the diagram;

[0029] Figure 8 for Figure 1 A magnified view of point E in the diagram;

[0030] Figure 9 This is a schematic diagram of the sweeping stick in this embodiment.

[0031] icon:

[0032] 001-Court; 011-First length side; 012-Second length side; 013-First width side; 014-Second width side; 015-Net; 100-Driver; 110-Base; 111-Base plate; 112-Up plate; 113-Top plate; 120-Motor; 130-Reducer; 140-Drive wheel; 141-First annular storage groove; 142-Second annular storage groove; 143-Third annular storage groove; 144-Fourth annular storage groove; 150-Bottom pressure roller; 160-Top pressure roller; 200-Ball sweeping Unit; 210-Transmission assembly; 211-First transmission unit; 2111-First traction rope; 2112-First limiting wheel; 2113-First steering wheel; 2114-First partition; 212-Second transmission unit; 2121-Second traction rope; 2122-Second limiting wheel; 2123-Second steering wheel; 2124-Second partition; 213-Sheath; 220-Guide assembly; 221-First guide member; 222-Second guide member; 230-Brushing stick; 231-Guide ring; 232-Stick body; 233-Reinforcing member. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0036] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0037] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0038] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0039] In the existing technology, tennis balls are scattered on the court 001, and manual collection is inefficient and labor-intensive; automatic tennis ball collectors cover a large area and sometimes travel back and forth in the same area of ​​the court 001, which is time-consuming, inefficient, and may result in missed collections.

[0040] In view of this, the designers have provided a ball-collecting device that can concentrate scattered tennis balls on one side of the court 001. Then, the tennis ball collector walks along a set route to collect the tennis balls. The tennis ball collector has a small walking area, so it is not easy to repeatedly walk in the same area. It is time-saving and has high tennis ball collection efficiency.

[0041] Please refer to Figures 1-9 This embodiment provides a ball-sweeping device, including a driver 100 and a ball-sweeping unit 200. The ball-sweeping unit 200 includes a transmission assembly 210, a guide assembly 220, and a ball-sweeping rod 230, wherein:

[0042] The driver 100, transmission assembly 210 and guide assembly 220 are all used for installation on the court 001. The driver 100 is connected to the sweeping stick 230 through the transmission assembly 210. The sweeping stick 230 is slidably connected to the guide assembly 220.

[0043] The driver 100 is used to drive the sweeping stick 230 to move in the width direction of the court 001 via the transmission assembly 210, so as to use the sweeping stick 230 to push the tennis ball located on the court 001.

[0044] As described above, the ball-sweeping device provided in this embodiment works as follows:

[0045] The ball-sweeping device is installed on court 001. Initially, the sweeping stick 230 is located on one side of the width direction of court 001, and is basically in contact with the perimeter netting of court 001. When it is necessary to collect tennis balls, the driver 100 is activated. The driver 100 transmits power to the sweeping stick 230 through the transmission component 210, causing the sweeping stick 230 to slide along the width direction of court 001 under the guidance of the guide component 220. As the sweeping stick 230 slides on court 001, it sweeps and concentrates the tennis balls on one side of the width direction of court 001. After the tennis balls are concentrated, the tennis ball collector can move along the length direction of court 001. The area that the tennis ball collector needs to travel is small, which greatly reduces the difficulty of collection, thereby improving the efficiency of tennis ball collection and shortening the time required for tennis ball collection.

[0046] It should be noted that a net 015 is located in the center of court 001, dividing court 001 into two halves. Two sweeping sticks 230 can be used to sweep the two halves separately, avoiding interference between the net 015 and the sweeping sticks 230, allowing for quick and efficient collection of scattered tennis balls across the entire court 001. For ease of description, the net 015 divides court 001 into a first half and a second half, and court 001 has a first length side 011 and a second length side 012 in its width direction, and a first width side 013 and a second width side 014 in its length direction. The net 015 is located in the middle of the first width side 013 and the second width side 014.

[0047] The following embodiments illustrate the details of the ball-sweeping accessory device of this application by way of example.

[0048] Please refer to Figures 1-3 In this embodiment, optionally, the ball-sweeping device includes a driver 100 and two ball-sweeping units 200. The driver 100 and the two ball-sweeping units 200 are both positioned on the court 001. Both ball-sweeping units 200 are simultaneously connected to the driver 100, allowing the driver 100 to simultaneously control the operation of both ball-sweeping units 200, using them to sweep the tennis balls scattered across the two halves of the court 001. The two ball-sweeping units 200 share a single driver 100, saving energy, simplifying the structure, and reducing the space occupied by the driver 100 on the court 001.

[0049] It should be understood that in some embodiments, each ball-sweeping unit 200 may also be configured with an independent set of drivers 100.

[0050] Please refer to Figures 1-4Optionally, the drive unit 100 includes a base 110, a motor 120, a reducer 130, a drive wheel 140, four top pressure rollers 160, and four bottom pressure rollers 150. The base 110 can be fixed to the court 001, and is located approximately at the center of the length of the court 001, corresponding to the first width side 013 of the court 001. The base 110 is located outside the marked area of ​​the court 001. The motor 120 and the reducer are both fixed to the base 110 and located outside the marked area. The output shaft of the motor 120 is connected to the input shaft of the reducer 130, and the output shaft of the reducer 130 is connected to the drive wheel 140. The axis of the drive wheel 140 extends horizontally, meaning that the drive wheel 140 can rotate about its horizontally extending axis. The four top pressure rollers 160 and the four bottom pressure rollers 150 are all fixed to the base 110 and can cooperate with the drive wheel 140 to prevent the traction rope wrapped around the drive wheel 140 from slipping off.

[0051] Optionally, the base 110 includes a base plate 111, two upright plates 112, and a top plate 113. The base plate 111 can be fixed to the court 001 with bolts. The two upright plates 112 are fixed to the top of the base plate 111, and the two upright plates 112 are arranged parallel to each other in the width direction of the court 001. The top plate 113 is fixed to the top of the two upright plates 112. The motor 120 and the reducer 130 are both fixed to the base plate 111.

[0052] It should be understood that the motor 120 can be connected to mains power via a power adapter, etc. After the motor 120 starts, it outputs torque to the drive wheel 140 after adjusting the speed ratio through the reducer 130, thereby driving the drive wheel 140 to rotate. Furthermore, the motor 120 can be started manually via mechanical buttons or remotely controlled via smartphones, tablets, and other smart terminals, offering flexible and convenient operation. Additionally, the power of the motor 120 can be adjusted as needed, thereby regulating the speed of the drive wheel 140.

[0053] Please refer to Figure 2Optionally, four annular storage slots are provided on the outer circumferential surface of the drive wheel 140, and the four annular storage slots are arranged sequentially along the axial extension direction of the drive wheel 140. The drive wheel 140 is rotatably mounted between two upright plates 112, and the rotation axis of the drive wheel 140 extends along the width direction of the court 001. Furthermore, the drive wheel 140 is distributed in the first half of the court and located outside the marked area on the court 001. Four top pressure rollers 160 are all fixed on the top plate 113, and each of the four top pressure rollers 160 corresponds to one of the four annular storage slots. Four bottom pressure rollers 150 are all fixed on the bottom plate 111, with three bottom pressure rollers 150 located on the same side of the drive wheel 140, and the remaining bottom pressure roller 150 located on the opposite side of the drive wheel 140. This is because four traction ropes are wound in the four annular storage slots on the drive wheel 140, with three traction ropes wound in the same direction, and the remaining traction rope wound in the opposite direction to the other three traction ropes. Specifically, three bottom pressure rollers 150 are distributed on the side of the drive wheel 140 closer to the second half of the court, and the remaining bottom pressure roller 150 is distributed on the side of the drive wheel 140 away from the second half of the court.

[0054] For ease of description, along the axial direction of the drive wheel 140, from the first length side 011 to the second length side 012, are sequentially a first annular receiving groove 141, a second annular receiving groove 142, a third annular receiving groove 143, and a fourth annular receiving groove 144. The three traction ropes located in the first annular receiving groove 141, the second annular receiving groove 142, and the third annular receiving groove 143 rotate in the same direction. Therefore, the three bottom pressure rollers 150 corresponding to the first annular receiving groove 141, the second annular receiving groove 142, and the third annular receiving groove 143 are located on the same side.

[0055] In this embodiment, it should be noted that, for ease of manufacturing and reduced maintenance costs, the two ball-sweeping units 200 are configured with identical structures. The two ball-sweeping units 200 cooperate with the first and second halves of the court, respectively, and are capable of sweeping tennis balls distributed on the first and second halves of the court. Furthermore, to avoid repetition and redundancy, this embodiment provides a detailed description of the structure of one ball-sweeping unit 200.

[0056] Please refer to Figure 1 , Figures 4-8 Optionally, the ball-sweeping unit 200 includes a transmission assembly 210, a guide assembly 220, and a ball-sweeping rod 230. The driver 100 is connected to the ball-sweeping rod 230 via the transmission assembly 210, and the ball-sweeping rod 230 is slidably connected to the guide assembly 220. It should be understood that both transmission assemblies 210 of the two ball-sweeping units 200 are connected to the driver 100, enabling synchronous control of the two ball-sweeping rods 230, saving energy, simplifying operation steps, and reducing operational difficulty.

[0057] The transmission assembly 210 includes two transmission units, each of which includes a traction rope and a support wheel. The traction rope is wound around both the drive wheel 140 and the support wheel. For ease of description, the two transmission units are referred to as the first transmission unit 211 and the second transmission unit 212.

[0058] Please refer to Figure 1 , Figures 5-6 The first transmission unit 211 includes a first traction rope 2111 and a plurality of first support wheels. The first traction rope 2111 is wound around both the first annular receiving groove 141 of the drive wheel 140 and the plurality of first support wheels. The number of first support wheels can be two, namely a first limiting wheel 2112 and a first steering wheel 2113. Both the first limiting wheel 2112 and the first steering wheel 2113 are rotatably mounted on the court 001 about a vertically extending axis. Two first limiting grooves are provided on the outer circumferential surface of the first limiting wheel 2112, and the two first limiting grooves are spaced apart axially from each other. The first steering wheel 2113 is located near the second length side 012, and the first limiting wheel 2112 is approximately located at the connection point between the second width side 014 and the first length side 011, that is, the first limiting wheel 2112 is approximately located at a corner of the court 001. The first traction rope 2111 is wound around the first annular storage groove 141 on the drive wheel 140 and the first steering groove of the first steering wheel 2113. Furthermore, the two ends of the first traction rope 2111 are respectively wound around the two first limiting grooves of the first limiting wheel 2112. Through the design of the first limiting wheel 2112, it not only supports the first traction rope 2111 and prevents it from tangling, but also adjusts the position of the first traction rope 2111 across the court 001, allowing it to bypass the space within the marked area of ​​the court 001 and preventing it from interfering with the normal use of the court 001. That is, under the constraint of the first limiting wheel 2112, the first traction rope 2111 forms an angle at the first limiting wheel 2112, and this angle is approximately 90°. In this way, the traction section of the first traction rope 2111 located between the drive wheel 140 and the first limit wheel 2112 extends approximately along the first length side 011 and is basically in contact with the first length side 011. The traction section of the first traction rope 2111 located between the first limit wheel 2112 and the first steering wheel 2113 extends approximately along the second width side 014 and is basically in contact with the second width side 014. The first traction rope 2111 extends along the edge of the court 001, occupies little space, and increases the effective usable area of ​​the court 001.

[0059] Please refer to Figure 1 , Figure 4 and Figure 7Correspondingly, the second transmission unit 212 includes a second traction rope 2121 and multiple second support wheels. The second traction rope 2121 is wound around both the second annular receiving groove 142 of the drive wheel 140 and the multiple second support wheels. Simultaneously, there can be two second support wheels, namely a second limiting wheel 2122 and a second steering wheel 2123. Both the second limiting wheel 2122 and the second steering wheel 2123 can be rotatably mounted on the court 001 around a vertically extending axis. Two second limiting grooves are provided on the outer circumferential surface of the second limiting wheel 2122, and the two second limiting grooves are spaced apart axially from each other. The second steering wheel 2123 is located near the second length side 012, and the second limiting wheel 2122 is approximately located on the extension line of the center net 015 and near the first length side 011. The second traction rope 2121 is wound around both the second annular receiving groove 142 on the drive wheel 140 and the second steering groove of the second steering wheel 2123. Furthermore, the two ends of the second traction rope 2121 are respectively wound around the two second limiting grooves of the second limiting wheel 2122. Through the design of the second limiting wheel 2122, it can not only support the second traction rope 2121 and prevent it from getting tangled, but also adjust the bending direction of the second traction rope 2121. That is, under the restriction of the second limiting wheel 2122, the second traction rope 2121 forms an angle at the second limiting wheel 2122, and the angle is approximately 90°. In this way, the traction section of the second traction rope 2121 located between the drive wheel 140 and the second limiting wheel 2122 extends approximately along the second length side 012 and is basically attached to the inner side of the first traction rope 2111; the traction section of the second traction rope 2121 located between the second limiting wheel 2122 and the second steering wheel 2123 extends approximately along the second width side 014 and is basically attached to the side of the grille 015 near the second width side 014. The position of the second traction rope 2121 and the grille 015 will not interfere with each other and will not affect the normal use of the grille 015.

[0060] It should be understood that the third and fourth traction ropes of the second transmission unit 212 are respectively wound in the third annular storage groove 143 and the fourth annular storage groove 144, which will not be described in detail in this embodiment.

[0061] In other embodiments, optionally, a first partition can be provided between the two first limiting grooves to separate the first traction rope 2111, thereby preventing the first traction rope 2111 from moving between the two first limiting grooves, reducing the likelihood of cross-friction, and extending its service life. Similarly, a second partition 2124 can be provided between the two second limiting grooves.

[0062] It is worth noting that when the traction rope is wound in the corresponding annular storage groove, the top pressure roller 160 and the bottom pressure roller 150 work together to press the traction rope into the annular storage groove, preventing the traction rope from slipping and improving the slippage phenomenon.

[0063] It should be noted that each support wheel may include a mounting base and a wheel body. The mounting base is used to fix the wheel to the court 001, and the wheel body is rotatably connected to the mounting base. The traction rope is wound around the wheel body. When the traction rope moves under the drive of the drive wheel 140, friction is generated between the traction rope and the wheel body. Under the action of friction, the wheel body rotates relative to the mounting base. The friction between the traction rope and the wheel body is rolling friction, which results in slow wear and minimal wear.

[0064] In other embodiments, the transmission unit may optionally include a sheath 213, which is fitted over a portion of the traction rope to protect that portion and extend its service life.

[0065] Optionally, the guide assembly 220 includes a first guide member 221 and a second guide member 222, both of which can be configured as guide ropes. Both ends of the guide rope can be fixed to the court 001 via mounting brackets, and the tension of the guide rope can be adjusted as needed to improve the guiding effect. Simultaneously, the first guide member 221 and the second guide member 222 are arranged in parallel at intervals, extending in the width direction of the court 001. The first guide member 221 is located near the second width side 014 and inside the first traction rope 2111, i.e., on the side of the first traction rope 2111 closest to the center net 015; the second guide member 222 corresponds to the position of the center net 015 and is located near the lower part of the center net 015, outside the second traction rope 2121, i.e., on the side of the second traction rope 2121 furthest from the center net 015. The first guide member 221 and the second guide member 222 cooperate to guide the sweeping stick 230 located in the same half of the court.

[0066] Please refer to Figure 1 and Figure 8Optionally, the two ends of the sweeping stick 230 are connected to the first traction rope 2111 and the second traction rope 2121 respectively, and the two ends of the sweeping stick 230 are connected at positions where the first traction rope 2111 and the second traction rope 2121 move in the same direction. The extension direction of the sweeping stick 230 is roughly parallel to the length direction of the court 001, and the length of the sweeping stick 230 is roughly consistent with the length direction of half the court. When the sweeping stick 230 moves relative to the court 001, it can sweep the entire half court, making it less likely to have blind spots and achieving high tennis ball collection efficiency. It should be understood that when the court 001 is in use, both sweeping sticks 230 are located at the position of the first length side 011 of the court 001, and the sum of the lengths of the two sweeping sticks 230 is basically equal to the length of the court 001. The two sweeping sticks 230 are close to the outer net of the court 001, making it less likely that tennis balls will be caught between the sweeping stick 230 and the first length side 011. When tennis balls need to be collected, the sweeping stick 230 sweeps from the first length side 011 toward the second length side 012, which can push all the tennis balls in half of the court toward the second length side 012, making it easier to concentrate the tennis balls on the second length side 012 and collect them.

[0067] It should be understood that the sweeping stick 230 can be a cylindrical stick, or it can be a grid structure with a certain width, which can be designed as needed.

[0068] Please refer to Figure 1 and Figure 8 Furthermore, the sweeping stick 230 has guide rings 231 at both ends, which are respectively connected to the first guide member 221 and the second guide member 222. The guide rings 231 at both ends are slidably sleeved on the first guide member 221 and the second guide member 222, respectively, resulting in good guiding effect. One or more guide rings 231 can be provided at the end of the sweeping stick 230, and multiple guide rings 231 can slide in cooperation with the first guide member 221 or the second guide member 222, thereby improving the stability of the sweeping stick 230.

[0069] Please combine Figure 9 Optionally, since the sweeping stick spans half the court, its length-to-diameter ratio is large, resulting in significant deflection and a risk of sagging due to gravity. Therefore, to improve the stick's rigidity and reduce bending deformation, a frame structure is used. For example, the sweeping stick comprises two parallel, spaced-apart shafts and multiple reinforcing members connecting the two shafts. Both the shafts and reinforcing members can be constructed as cylindrical hollow steel tubes, etc. The two ends of the reinforcing members can be welded and fixed to the two shafts respectively.

[0070] Furthermore, to improve the stability of the sweeping club during the tennis ball sweeping process, a traveling wheel can be installed at the bottom of the club. This traveling wheel makes contact with the tennis court, resulting in a small contact area and low friction. The traveling wheel supports the sweeping club, preventing it from wobbling during the sweep, thus improving its stability relative to the tennis court. This reduces friction between the guide ring and guide components, slows wear, extends the lifespan of parts, and lowers maintenance costs.

[0071] The ball-sweeping device provided in this embodiment starts the motor 120 before collecting tennis balls. The motor 120 transmits power to the drive wheel 140 through the reducer 130. The drive wheel 140 drives the first traction rope 2111 and the second traction rope 2121 to rotate in the same direction, thereby driving the sweeping stick 230 to slide along the first length side 011 to the second length side 012. With the cooperation of the two sweeping sticks 230, the tennis balls on the entire court 001 can be pushed to the second length side 012. The tennis balls are concentrated on the second length side 012, which is convenient for collection. The tennis ball collection efficiency is high and the time consumption is short.

[0072] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A ball-sweeping accessory device, characterized in that, It includes a driver (100) and a ball-sweeping unit (200), the ball-sweeping unit (200) including a transmission assembly (210), a guide assembly (220) and a ball-sweeping rod (230), wherein: The driver (100), the transmission assembly (210), and the guide assembly (220) are all used for installation on the court (001). The driver (100) is connected to the sweeping stick (230) through the transmission assembly (210), and the sweeping stick (230) is slidably connected to the guide assembly (220). The driver (100) is used to drive the sweeping stick (230) to move in the width direction of the court (001) via the transmission assembly (210) so as to push the tennis ball located on the court (001) using the sweeping stick (230).

2. The ball-sweeping device according to claim 1, characterized in that: The transmission assembly (210) includes two transmission units, both of which are connected to the driver (100). The ball sweeping stick (230) is connected to both transmission units. The driver (100) is used to drive the two ends of the ball sweeping stick (230) to move in the same direction through the two transmission units.

3. The ball-sweeping device according to claim 2, characterized in that: Each of the transmission units includes a traction rope and multiple support wheels, which are installed on the court (001) and arranged at intervals. The traction rope is wound around the multiple support wheels and is connected to the driver (100) for sliding relative to the support wheels under the drive of the driver (100). The sweeping stick (230) is connected to the traction rope.

4. The ball-sweeping device according to claim 3, characterized in that: The plurality of support wheels include a limiting wheel and a steering wheel. In the extension direction of the traction rope, the limiting wheel is located between the driver (100) and the steering wheel. The traction rope is wound around the driver (100) and the steering wheel, and the traction rope is in contact with the limiting wheel at the same time, so that the extension direction of the traction rope between the driver (100) and the limiting wheel has an angle with the extension direction of the traction rope between the limiting wheel and the steering wheel.

5. The ball-sweeping device according to claim 4, characterized in that: Two limiting grooves are provided on the outer circumferential surface of the limiting wheel, and the two limiting grooves are arranged at intervals along the axial direction of the limiting wheel; a steering groove is provided on the outer circumferential surface of the steering wheel; the traction rope is simultaneously wound around the two limiting grooves and the steering groove.

6. The ball-sweeping device according to claim 3, characterized in that: The transmission unit also includes a sheath (213) for fixing to the court (001), and part of the traction rope is threaded through the sheath (213).

7. The ball-sweeping device according to any one of claims 3-6, characterized in that: The support wheel includes a mounting base and a wheel body. The mounting base is used to fix the wheel body to the court (001). The wheel body is rotatably connected to the mounting base. The traction rope is wound around the outer circumferential surface of the wheel body.

8. The ball-sweeping device according to claim 7, characterized in that: The driver (100) includes a motor (120) and a drive wheel (140), the motor (120) being connected to the drive wheel (140), and the traction rope being wound around the drive wheel (140).

9. The ball-sweeping device according to claim 1, characterized in that: The guide assembly (220) includes two guide members, both of which are used to be laid on the court (001) and can be arranged at intervals along the length of the court (001). The sweeping stick (230) is slidably connected to both guide members.

10. The ball-sweeping device according to claim 1, characterized in that: There are two ball-sweeping units (200), which are distributed on both sides of the net (015) of the court (001). Each ball-sweeping unit (200) is used to push the tennis ball in the corresponding half of the court (001).

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