Convenient physical training equipment transfer device with lifting function

Abstract

The invention relates to the technical field of training equipment transfer, in particular to a convenient physical training equipment transfer device with a lifting function. The convenient physical training equipment transfer device with the lifting function comprises a bottom frame, a handle, a bottom frame, a lifting frame, moving wheels, a threaded rod, a return spring, a wire spool, a wire wheel, a pull rope and a driving assembly, the handle is rotationally connected to the front side of the bottom frame, the bottom frame is installed at the top of the bottom frame, a sliding groove is formed in the bottom frame, and the lifting frame is arranged in the sliding groove. The lifting frame is in sliding connection with a sliding groove in the bottom frame. The interiors of the bottom frame and the lifting frame are reasonably partitioned, basketballs, footballs and volleyballs are stored in a front side cavity according to the sizes of balls, table tennis balls are stored in a rear right side cavity, a feeding hopper and a sliding cover are designed correspondingly, storage and taking are convenient, meanwhile, badminton rackets and table tennis rackets are stored in a large-size racket frame and a small-size racket frame respectively, sports equipment is clearly classified, mutual collision and damage are avoided, and the service life of the sports equipment is prolonged. And the equipment management and taking efficiency is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of transporting training equipment, and particularly relates to a convenient transporting device for sports training equipment with a built-in lifting function. Background Art

[0002] The smooth progress of sports training highly depends on efficient transportation of sports equipment. During training, the rapid and safe transportation of equipment is directly related to the continuity and quality of training. However, there are many problems to be solved urgently in the existing ways of transporting sports equipment.

[0003] Conventional transporting devices for sports equipment mostly have a fixed structure, and the internal space cannot be adjusted flexibly. When transporting a mixture of large-sized balls such as basketballs and footballs, and small-sized equipment such as badminton rackets and table tennis rackets, the fixed space is likely to cause uneven utilization of space. Large equipment occupies too much space, and small equipment is scattered and difficult to organize. Especially when the scale of training expands and the number of equipment increases, the limited space cannot meet the storage requirements, and it is necessary to make multiple round trips for transportation, which is time-consuming and laborious, and seriously affects the training preparation efficiency.

[0004] In addition, traditional transporting devices cannot change the spatial layout in real time according to the quantity and size of the equipment. When holding large-scale sports events or training camps, the number of equipment may increase several times. Traditional devices cannot respond in time, often resulting in stacking and squeezing of equipment, causing damage. And due to space limitations, it is difficult to properly place some large or special equipment, further restricting the application scope of the transporting device.

[0005] To solve these problems, it is extremely urgent to develop a convenient transporting device for sports training equipment with a flexible space adjustment function, especially with a built-in lifting function. Summary of the Invention

[0006] In order to overcome the disadvantages mentioned in the background art, the present invention provides a convenient transporting device for sports training equipment with a built-in lifting function.

[0007] A convenient transporting device for sports training equipment with a built-in lifting function includes a chassis, a handle, a bottom frame, a lifting frame, moving wheels, a threaded rod, a return spring, a winding disc, a wire wheel, a pulling rope, and a driving component. The handle is rotatably connected to the front side of the chassis. The bottom frame is installed on the top of the chassis. A chute is arranged inside the bottom frame. The lifting frame is slidably connected to the chute inside the bottom frame. Moving wheels are installed at the four corners of the bottom of the chassis. The threaded rod is rotatably connected to the front side of the chassis, penetrates through the inside of the bottom frame, and is threadedly connected to the inside of the lifting frame. Return springs are connected between the four corners of the bottom of the lifting frame and the inside of the bottom frame. The lower end of the threaded rod is connected to the winding disc. The upper end of the handle is rotatably connected to the wire wheel. The pulling rope is wound around the winding disc, and the other end of the pulling rope is wound around the wire wheel. A driving component is provided on the handle.

[0008] Further explanation: The lifting frame and the bottom frame are equipped with a mesh cloth, a large racket rack, a small racket rack, a top plate, a feeding hopper, a sliding cover and a storage frame. The inside of the bottom frame is separated into multiple spaces by partitions. The front part has two chambers on the left and right, and a chamber is also opened on the right side of the rear part. A storage frame is fixedly connected inside this chamber. The internal layout of the lifting frame is the same as that of the inner cavity of the bottom frame. A top plate is fixedly connected at the position on the lifting frame aligned with the storage frame. A feeding hopper is fixedly connected and communicated on the left side of the top plate. A sliding cover is slidably connected to the right side of the top plate through a slide rail. Mesh cloths are fixedly connected at the positions on the front side of the top of the lifting frame aligned with the two front chambers respectively. An entrance is opened in the middle of the mesh cloth. The entrance size of the left mesh cloth is larger, and the entrance size of the right mesh cloth is smaller. A large racket rack and a small racket rack are fixedly connected in sequence from left to right on the left side of the rear part inside the bottom frame. Both the large racket rack and the small racket rack communicate with the lifting frame.

[0009] Further explanation: The driving component includes an outer cylinder, a spline part, a rocker, a support part, a scroll spring and a clamping component. The upper right side of the handle is connected with an outer cylinder. The right end of the wire wheel is rotatably connected to the inside of the outer cylinder. A spline part is movably connected inside the outer cylinder. The spline part is slidably clamped with the right end of the wire wheel. The right end of the spline part is rotatably connected with a rocker in a folded state. A support part is connected at the position of the bottom of the chassis below the wire winding disc. The threaded rod penetrates through the support part. The wire winding disc is rotatably connected with the support part, and a scroll spring is connected between the wire winding disc and the support part. A clamping component is provided on the outer cylinder.

[0010] Further explanation: The clamping component includes an inclined block, a first spring, a clamping block and a second spring. An inclined block is slidably connected to the upper side inside the outer cylinder. Two first springs are connected between the inclined block and the inside of the outer cylinder. A notch is opened at the position of the right end of the wire wheel corresponding to the inclined block. The inclined block is clamped and matched with the notch. The spline part is in contact and cooperation with the inclined block. Clamping blocks are slidably connected to both sides of the spline part. Second springs are connected between the clamping blocks and the inside of the spline part respectively. A clamping groove is opened at the position inside the outer cylinder corresponding to the clamping blocks. The clamping blocks are clamped and matched with the clamping grooves on the inner wall of the outer cylinder.

[0011] Further explanation: It also includes a support frame, a sliding plate, a support cylinder and a side wheel. The bottom of the chassis is slidably connected with a support frame. The support frame is symmetrically slidably connected with sliding plates. Support cylinders are connected to both sides of the sliding plates. Side wheels are installed on the outer sides of the support cylinders.

[0012] Further description: It also includes a spur gear, a bevel gear, a long gear, a guide rod, a transmission shaft, a double - threaded screw and a belt group. The bottom of the threaded rod is connected to the spur gear. The front side of the support frame is connected to the bevel gear through a rotating shaft. The rotating shaft is rotatably connected to the support frame. The top of the rotating shaft is connected to the long gear. The long gear is slidably connected to the guide rod at the top. The guide rod is connected to the bottom of the chassis. The long gear meshes with the spur gear. The front side of the bottom of the support frame is rotatably connected to the transmission shaft. The front end of the transmission shaft is also connected to a bevel gear. The two bevel gears mesh with each other. A double - threaded screw is threadedly connected between every two symmetrically arranged support cylinders at the front and back. A belt group is connected between the middle of the two double - threaded screws and the transmission shaft.

[0013] Further description: It also includes a connecting frame, an air cylinder, a one - way valve, a piston rod, an air pipe, a piston cylinder frame, a transmission pipe, a sealing rod and a sealing plug. The front side of the chassis is connected to the connecting frame. An obliquely arranged air cylinder is connected to the connecting frame. A piston rod is slidably connected inside the air cylinder. The upper end of the piston rod is rotatably connected to the handle. A one - way valve is installed on the front side of the air cylinder. A sealing plug is threadedly connected to the right side of the air cylinder. The rear end of the air cylinder is connected to a double - headed air pipe. The bottom of the chassis is symmetrically connected to the piston cylinder frame. The piston cylinder frame includes two piston cylinders. The two piston cylinder frames are connected to the symmetric piston cylinders through two transmission pipes. The air pipe is connected to and communicates with the front piston cylinder frame. Sealing rods are connected to the positions corresponding to the piston cylinders of the piston cylinder frame at the bottom of the support frame. The sealing rods are slidably connected to the corresponding piston cylinders in a sealed manner.

[0014] Further description: The size of the one - way valve is adapted to the size of a conventional sealing cover.

[0015] The beneficial effects of the present invention are as follows: 1. The interior of the bottom frame and the lifting frame is reasonably partitioned. In the front chamber, basketballs, footballs, and volleyballs are stored according to the size of the balls. In the rear - right chamber, table tennis balls are stored. There are corresponding feeding hoppers and sliding covers, which are convenient for access. At the same time, large - size and small - size racket racks are respectively used to store badminton rackets and table tennis rackets, realizing clear classification of sports equipment, avoiding mutual collision and damage, and greatly improving the efficiency of equipment management and retrieval.

[0016] 2. It has a lifting function. The lifting frame can be easily controlled to lift through the driving component. When there are more equipment, raising the lifting frame can expand the internal chamber space of the bottom frame. Moreover, the large - size and small - size racket racks can stack more rackets, effectively increasing the storage space, meeting the storage volume requirements of different equipment, and improving the applicability of the transfer device.

[0017] 3. The additional side - position wheel structure is ingenious. When the lifting frame is raised and the load of the device increases, through the coordinated operation of the air - path system and the transmission component, the side - position wheel can be automatically deployed to provide additional support for the device, improving the moving stability and smoothness. When it is necessary to lower the lifting frame, the side - position wheel can be automatically retracted, reducing the floor area and facilitating the storage of the device and its movement in different scenarios.

[0018] 4. The driving components are reasonably designed. For example, the rocker, spline parts, and positioning components work well together. The operation process is simple and easy to understand. Only a few steps are required to complete the lifting frame lifting and the side wheels unfolding and folding, reducing the user's operating difficulty and labor intensity. Even a single person can easily complete the operation and adjustment of the equipment transfer device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0020] Figure 2 It is a three-dimensional structural schematic diagram of the top plate, feeding hopper, sliding cover and other components of the present invention.

[0021] Figure 3 It is a three-dimensional structural schematic diagram of the large racket frame, the small racket frame and the storage frame and other components of the present invention.

[0022] Figure 4 It is a three-dimensional structural schematic diagram of the threaded rod, return spring, winding drum and other components of the present invention.

[0023] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle.

[0024] Figure 6 It is a three-dimensional structural schematic diagram of the outer cylinder, spline parts, rocker and other components of the present invention.

[0025] Figure 7 It is a three-dimensional structural schematic diagram of the winding disk, support member, spiral spring and other components of the present invention.

[0026] Figure 8 It is a three-dimensional structural schematic diagram of the components such as the inclined block, spring 1 and the clamping block of the present invention.

[0027] Figure 9 It is a three-dimensional structural schematic diagram of the supporting frame, sliding plate, supporting tube and other components of the present invention.

[0028] Figure 10 It is a three-dimensional structural schematic diagram of the connecting frame, the air cylinder, the one-way valve and other components of the present invention.

[0029] Figure 11 It is a three-dimensional structural schematic diagram of components such as the bidirectional screw, the piston cylinder frame and the side position wheel of the present invention.

[0030] Figure 12 It is a three-dimensional structural schematic diagram of components such as bevel gears, long gears and guide rods of the present invention.

[0031] In the above drawings: 1: chassis, 101: handle, 102: bottom frame, 103: lifting frame, 104: mesh cloth, 105: large racket rack, 106: small racket rack, 107: top plate, 1071: feeding hopper, 1072: sliding cover, 1073: storage box, 108: moving wheel, 2101: threaded rod, 202: return spring, 203: winding disc, 204: wire wheel, 205: pulling rope, 206: outer cylinder, 2061: spline part, 2062: rocker, 207: support part, 208: volute spring, 301: support frame, 302: sliding plate, 303: support cylinder, 304: side wheel, 401: spur gear, 402: bevel gear, 403: long gear, 4031: guide rod, 404: transmission shaft, 405: bidirectional screw, 406: belt group, 501: connecting frame, 502: air cylinder, 5021: one-way valve, 503: piston rod, 504: air pipe, 505: piston cylinder frame, 506: transmission pipe, 507: sealing rod, 508: sealing plug, 701: inclined block, 702: spring one, 703: clamping block, 704: spring two. Detailed implementation mode

[0032] Embodiment 1: A convenient transfer device for a sports training equipment with a built-in lifting function, as Figures 1-8 shown, comprising a chassis 1, a handle 101, a bottom frame 102, a lifting frame 103, a moving wheel 108, a threaded rod 201, a return spring 202, a winding disc 203, a wire wheel 204, a pulling rope 205 and a driving assembly. The handle 101 is rotatably connected to the front side of the chassis 1. The bottom frame 102 is installed on the top of the chassis 1 through bolts. A chute is arranged inside the bottom frame 102. The lifting frame 103 is slidably connected to the chute inside the bottom frame 102. Moving wheels 108 are installed at the four corners of the bottom of the chassis 1. The threaded rod 201 is rotatably connected to the front side of the chassis 1. The threaded rod 201 penetrates through the inside of the bottom frame 102 and is threadedly connected to the inside of the lifting frame 103 for controlling the rising and falling of the lifting frame 103. Return springs 202 are connected between the four corners of the bottom of the lifting frame 103 and the inside of the bottom frame 102. The lower end of the threaded rod 201 is connected to the winding disc 203. The upper end of the handle 101 is rotatably connected to the wire wheel 204. The pulling rope 205 is wound around the winding disc 203. The other end of the pulling rope 205 is wound around the wire wheel 204. A driving assembly is arranged on the handle 101.

[0033] As Figures 1-3As shown in the figure, the lifting frame 103 and the bottom frame 102 are provided with a mesh cloth 104, a large racket rack 105, a small racket rack 106, a top plate 107, a feeding hopper 1071, a sliding cover 1072 and a storage frame 1073. The inside of the bottom frame 102 is separated into multiple spaces by partitions. The front part has two chambers on the left and right, and a chamber is also opened on the right side of the rear part. A storage frame 1073 is fixedly connected inside this chamber for storing table tennis balls. The internal layout of the lifting frame 103 is the same as that of the inner cavity of the bottom frame 102. A top plate 107 is fixedly connected to the position on the lifting frame 103 aligned with the storage frame 1073. A feeding hopper 1071 is fixedly connected and communicated to the left side of the top plate 107. The right side of the top plate 107 is slidably connected with a sliding cover 1072 through a slide rail and can be opened by pushing and pulling the sliding cover 1072 to facilitate taking the table tennis balls in the storage frame 1073. Mesh cloths 104 are respectively fixedly connected to the positions on the front side of the top of the lifting frame 103 aligned with the two front chambers. An entrance is opened in the middle of the mesh cloth 104. The entrance size of the left mesh cloth 104 is larger, which is convenient for storing basketballs in the left chamber. The entrance size of the right mesh cloth 104 is smaller, which is convenient for storing small-sized balls such as volleyballs and footballs in the right chamber. A large racket rack 105 and a small racket rack 106 are fixedly connected in sequence from left to right on the left side of the rear part inside the bottom frame 102. The large racket rack 105 can be used to store badminton rackets, and the small racket rack 106 is used to store table tennis rackets. Both the large racket rack 105 and the small racket rack 106 communicate with the lifting frame 103. When the lifting frame 103 rises, rackets can be stacked on the large racket rack 105 and the small racket rack 106, and at the same time, the rising of the lifting frame 103 can increase the storage space of each chamber and the storage frame 1073.

[0034] As Figures 6-8 shown, the drive assembly includes an outer cylinder 206, a spline part 2061, a rocker 2062, a support part 207, a volute spring 208 and a clamping component. The upper right side of the handle 101 is connected with the outer cylinder 206. The right end of the wire wheel 204 is rotatably connected to the inside of the outer cylinder 206. A spline part 2061 is movably connected inside the outer cylinder 206. The spline part 2061 is slidably clamped with the right end of the wire wheel 204. The right end of the spline part 2061 is rotatably connected with a rocker 2062 in a folded state. A support part 207 is connected to the position at the bottom of the bottom frame 1 below the winding disc 203. The threaded rod 201 penetrates through the support part 207. The winding disc 203 is rotatably connected with the support part 207, and a volute spring 208 is connected between the winding disc 203 and the support part 207. A clamping component is provided on the outer cylinder 206.

[0035] As Figure 8As shown in the figure, the clamping component includes an inclined block 701, a first spring 702, a clamping block 703 and a second spring 704. The upper side inside the outer cylinder 206 is slidably connected with the inclined block 701. There are two first springs 702 connected between the inclined block 701 and the inside of the outer cylinder 206. A notch is provided at the right end of the wire wheel 204 corresponding to the inclined block 701. The inclined block 701 is in clamping fit with the notch. The spline part 2061 is in contact fit with the inclined block 701. Clamping blocks 703 are slidably connected to the front and rear sides of the spline part 2061 respectively. Second springs 704 are connected between the clamping blocks 703 and the inside of the spline part 2061. Slots are provided at the positions corresponding to the clamping blocks 703 inside the outer cylinder 206. The clamping blocks 703 are in clamping fit with the slots on the inner wall of the outer cylinder 206.

[0036] When using this device to carry out the transfer work of sports equipment, first, various equipment needs to be stored scientifically and reasonably. The two chambers provided on the front side of the bottom frame 102 are respectively used to store basketballs, footballs or volleyballs. Operators should, according to the specific sizes of the balls, accurately place them into the corresponding chambers through the entrance provided in the middle of the mesh cloth 104. After that, table tennis balls can be put into the storage frame 1073 through the feeding hopper 1071, while badminton rackets and table tennis rackets can be placed into the corresponding large racket racks 105 and small racket racks 106 respectively in an overall arrangement manner. When the equipment placement work is all completed, the operator holds the handle 101 and applies a thrust. With the assistance of the moving wheels 108, the device can move smoothly. In this way, the device can be successfully transported to the stadium or other designated use places, thus achieving the goal of convenient transfer of sports equipment. When retrieving the equipment, basketballs and footballs can be directly taken from the entrance on the mesh cloth 104; if you need to retrieve table tennis balls, just slide the sliding cover 1072 along the rail direction to open it.

[0037] If there is a situation where a large number of equipment needs to be stored, the lifting frame 103 can be controlled to rise through specific operations to expand the storage space of the device. During the specific operation, first pull the rocker 2062 to expand it from the folded state. Then, use your fingers to squeeze the two side clamping blocks 703 inward. At this time, the second spring 704 starts to be compressed under the external force. When the clamping block 703 disengages from the clamping state with the card slot on the outer cylinder 206, the next operation can be carried out. Push the spline part 2061 along the spline groove of the outer cylinder 206 to the left. The clamping block 703 moves together with the spline part 2061. During the movement, due to the constraint of the inner wall of the outer cylinder 206, the clamping block 703 always remains in the retracted state. When the spline part 2061 moves to a certain position to the left, it will form a spline connection with the wire wheel 204. At the same time, the movement of the spline part 2061 will push the inclined block 701 upward, causing the first spring 702 to be compressed, and further causing the inclined block 701 to disengage from the notch on the wire wheel 204, releasing the locking of the wire wheel 204. At this time, the operator rotates the rocker 2062, and the rotation of the rocker 2062 will drive the spline part 2061 and the wire wheel 204 to rotate synchronously. During the rotation of the wire wheel 204, the pulling rope 205 will be wound. As the pulling rope 205 is wound, the winding disc 203 starts to rotate under the drive of the pulling rope 205, causing the scroll spring 208 between the winding disc 203 and the support member 207 to deform and store elastic potential energy. The rotation of the winding disc 203 further drives the threaded rod 201 to rotate, and the rotation of the threaded rod 201 will cause the lifting frame 103 to move upward along the chute inside the bottom frame 102. During the upward movement of the lifting frame 103, the net cloth 104 and the top plate 107 connected to it will also move upward as a whole. In this way, the space size of the inner cavity of the bottom frame 102 is expanded, and there is also more space on the large racket rack 105 and the small racket rack 106 for stacking more rackets.

[0038] When the height of the lifting frame 103 is adjusted, stop rotating the rocker 2062. Then, move the rocker 2062 and the spline part 2061 to the right for reset operation. When the spline part 2061 disengages from the inclined block 701, the inclined block 701 moves downward under the reset action of the first spring 702 and forms a clamping connection with the notch on the wire wheel 204 again, thus fixing the position of the wire wheel 204 to prevent it from rotating randomly. At the same time, when the spline part 2061 drives the clamping block 703 to move to the right until it aligns with the card slot inside the outer cylinder 206, the clamping block 703 pops out to the outside under the reset action of the second spring 704 and is clamped with the card slot to fix the position of the spline part 2061. At this time, the spline part 2061 disengages from the spline connection with the wire wheel 204. Finally, fold and store the rocker 2062 to ensure that the wire wheel 204 will not be rotated randomly, so as to maintain the current position state of the lifting frame 103.

[0039] When it is necessary to lower the height of the lifting frame 103, the above operation steps can be repeated. Specifically, the spline part 2061 is spline-connected to the wire wheel 204 again, so that the spline part 2061 and the wire wheel 204 are in a state of not being limited. In this case, the volute spring 208 and the return spring 202 quickly release the elastic potential energy and rebound and reset. Under the combined action of the elastic force of the spring and its own gravity, the lifting frame 103 moves downward along the chute inside the bottom frame 102, and the height gradually decreases. At the same time, the downward movement of the lifting frame 103 drives the threaded rod 201 and the wire winding wheel 204 to reverse. The wire winding wheel 204 winds up the pulling rope 205, prompting the wire wheel 204 to reverse and unwind the pulling rope 205. When the lifting frame 103 descends to a suitable position, the spline part 2061 is disconnected from the wire wheel 204, so that the wire wheel 204 is again limited by the inclined block 701, and the position of the wire wheel 204 is fixed again, completing the adjustment of the height of the lifting frame 103.

[0040] Embodiment 2: On the basis of Embodiment 1, as Figure 9 and Figures 11-12 shown, it further includes a support frame 301, a sliding plate 302, a support cylinder 303, a side wheel 304, a spur gear 401, a bevel gear 402, a long gear 403, a guide rod 4031, a transmission shaft 404, a bidirectional screw 405 and a belt group 406. The bottom of the chassis 1 is slidably connected with a support frame 301. The support frame 301 is slidably connected with sliding plates 302 symmetrically front and back. Both sides of the sliding plate 302 are welded with support cylinders 303. Side wheels 304 are installed on the outside of the support cylinders 303. The bottom of the threaded rod 201 is connected with a spur gear 401. The front side of the support frame 301 is connected with a bevel gear 402 through a rotating shaft. The rotating shaft is rotatably connected with the support frame 301. The top of the rotating shaft is connected with a long gear 403. The long gear 403 is slidably connected with a guide rod 4031. The guide rod 4031 is welded to the bottom of the chassis 1. The long gear 403 meshes with the spur gear 401. The front side of the bottom of the support frame 301 is rotatably connected with a transmission shaft 404. The front end of the transmission shaft 404 is also connected with a bevel gear 402. The two bevel gears 402 mesh with each other. A bidirectional screw 405 is threadedly connected between every two symmetrically front and back support cylinders 303. Belt groups 406 are connected between the middle parts of the two bidirectional screws 405 and the transmission shaft 404 respectively, so as to facilitate the transmission of power from the transmission shaft 404 to the two bidirectional screws 405.

[0041] As Figures 9-12As shown in the figure, it also includes a connecting frame 501, an air cylinder 502, a one-way valve 5021, a piston rod 503, an air pipe 504, a piston cylinder frame 505, a transmission pipe 506, a sealing rod 507 and a sealing plug 508. The front side of the bottom frame 1 is connected with a connecting frame 501 by bolts. An obliquely arranged air cylinder 502 is connected to the connecting frame 501. A piston rod 503 is slidably connected in the air cylinder 502. The upper end of the piston rod 503 is rotatably connected with the handle 101. A one-way valve 5021 is installed on the front side of the air cylinder 502, which only allows external air to enter the air cylinder 502 through this valve, and is blocked in the reverse direction. The size of the one-way valve 5021 is adapted to the size of a conventional sealing cover. The one-way valve 5021 can be tightly sleeved on the outside of the one-way valve 5021 by using the sealing cover, so as to effectively seal the channel of the one-way valve 5021. A sealing plug 508 is threadedly connected to the right side of the air cylinder 502 for discharging the gas inside the air cylinder 502. The rear end of the air cylinder 502 is connected with a double-headed air pipe 504. The front and rear sides of the bottom of the bottom frame 1 are symmetrically connected with piston cylinder frames 505. The piston cylinder frame 505 includes two left and right piston cylinders. The two piston cylinder frames 505 are connected by two transmission pipes 506 to the front and rear symmetric piston cylinders. The air pipe 504 is connected and communicated with the front piston cylinder frame 505. Sealing rods 507 are connected to the corresponding positions of the piston cylinders of the piston cylinder frame 505 at the bottom of the support frame 301. The sealing rods 507 are slidably connected to the corresponding piston cylinders in a sealed manner.

[0042] When it is necessary to raise the lifting frame 103 to expand the storage space of the device, due to the increase of equipment in the device, the side wheels 304 can provide additional support and movement assistance. In the initial state, the side wheels 304 are in a folded state. Before raising the lifting frame 103, it is necessary to first unfold the side wheels 304. During specific operation, the operator swings the handle 101 to drive the piston rod 503 to slide up and down in the air cylinder 502. Due to the action of the one-way valve 5021 on the front side of the air cylinder 502, when the piston rod 503 slides upward, external air is pumped into the air cylinder 502 through the one-way valve 5021; when the piston rod 503 slides downward, the air in the air cylinder 502 cannot be discharged from the one-way valve 5021. As the air is continuously pumped in, the gas in the air pipe 504 increases. The gas first flows into the front piston cylinder frame 505 through the air pipe 504, and then flows to the rear piston cylinder frame 505 through the transmission pipe 506. The gas pressure in the piston cylinder frame 505 increases, pushing the sealing rod 507 and the support frame 301 to move upward. The support frame 301 drives the sliding plate 302, the support cylinder 303 and the side wheels 304 thereon to rise as a whole. During this process, the bevel gear 402, the long gear 403, the transmission shaft 404, the bidirectional screw 405 and the belt group 406 on the support frame 301 also rise accordingly. The guide rod 4031 plays a limiting role on the long gear 403 to ensure that the long gear 403 and the spur gear 401 always remain in a meshed state. When the side wheels 304 are raised to be separated from the ground, stop shaking the handle 101.

[0043] Then, perform the raising operation of the lifting frame 103. The rotation of the threaded rod 201 drives the lifting frame 103 to move upward. At the same time, the threaded rod 201 drives the spur gear 401 to rotate, so as to drive the long gear 403 to rotate, and then drive the bevel gear 402 connected thereto to rotate. The two bevel gears 402 cooperate with each other to drive the transmission shaft 404 to rotate. The transmission shaft 404 transmits power to the bidirectional screw 405 through the belt group 406. When the bidirectional screw 405 rotates, it drives the support cylinders 303 and the sliding plates 302 on both sides to move outward along the support frame 301, so that the side wheels 304 are unfolded outward. The limit position of the unfolding of the side wheels 304 is adapted to the limit height of the raising of the lifting frame 103. After the raising operation of the lifting frame 103 is completed, unscrew the sealing plug 508 to deflate the air cylinder 502. At this time, the support frame 301 and the components thereon move downward under the action of gravity, driving the side wheels 304 to move downward until they contact the ground. Re-tighten the sealing plug 508 and use the sealing cover to seal the one-way valve 5021 to prevent the piston rod 503 from being affected by pushing and pulling when operating the handle 101. After that, pushing the handle 101 can drive the device to move. The unfolding of the side wheels 304 effectively improves the stability and smoothness of the movement of the device.

[0044] When it is necessary to lower the lifting frame 103, first remove the sealing cover on the one-way valve 5021, repeat the raising operation of the side wheels 304, and then perform the lowering operation of the lifting frame 103. At this time, the threaded rod 201 rotates reversely, driving the bevel gear 402, the long gear 403 and the transmission shaft 404 to rotate reversely through the spur gear 401, and then reversing the bidirectional screw 405. The reverse rotation of the bidirectional screw 405 drives the sliding plates 302, the support cylinders 303 and the side wheels 304 to move inward and retract, thereby reducing the overall floor area of the device.

Claims

1. A convenient transfer device for sports training equipment with a built-in lifting function, characterized in that, It includes a chassis (1), a handle (101), a bottom frame (102), a lifting frame (103), moving wheels (108), a threaded rod (201), a return spring (202), a winding disc (203), a wire wheel (204), a pulling rope (205) and a driving assembly. A handle (101) is rotatably connected to the front side of the chassis (1). A bottom frame (102) is installed on the top of the chassis (1). A chute is provided inside the bottom frame (102). The lifting frame (103) is slidably connected to the chute inside the bottom frame (102). Moving wheels (108) are installed at the four corners of the bottom of the chassis (1). A threaded rod (201) is rotatably connected to the front side of the chassis (1). The threaded rod (201) penetrates through the inside of the bottom frame (102) and is threadedly connected to the inside of the lifting frame (103). Return springs (202) are connected between the four corners of the bottom of the lifting frame (103) and the inside of the bottom frame (102). The lower end of the threaded rod (201) is connected to a winding disc (203). A wire wheel (204) is rotatably connected to the upper end of the handle (101). A pulling rope (205) is wound around the winding disc (203). The other end of the pulling rope (205) is wound around the wire wheel (204). A driving assembly is provided on the handle (101).

2. The convenient transfer device for a sports training equipment with a built-in lifting function according to claim 1, characterized in that, The lifting frame (103) and the bottom frame (102) are provided with a mesh cloth (104), a large racket rack (105), a small racket rack (106), a top plate (107), a feeding hopper (1071), a sliding cover (1072) and a storage frame (1073). The inside of the bottom frame (102) is separated into multiple spaces by partitions. The front part is divided into two chambers on the left and right, and a chamber is also opened on the right side of the rear part. A storage frame (1073) is fixedly connected inside this chamber. The internal layout of the lifting frame (103) is the same as that of the inner cavity of the bottom frame (102). A top plate (107) is fixedly connected at the position of the lifting frame (103) aligned with the storage frame (1073). A feeding hopper (1071) is fixedly connected and communicated on the left side of the top plate (107). A sliding cover (1072) is slidably connected to the right side of the top plate (107) through a slide rail. Mesh cloths (104) are fixedly connected at the positions of the front side of the top of the lifting frame (103) aligned with the two front chambers respectively. An entrance is opened in the middle of the mesh cloth (104). The entrance size of the left mesh cloth (104) is larger, and the entrance size of the right mesh cloth (104) is smaller. A large racket rack (105) and a small racket rack (106) are fixedly connected in sequence from left to right on the left side of the rear part inside the bottom frame (102). Both the large racket rack (105) and the small racket rack (106) communicate with the lifting frame (103).

3. The convenient transfer device for a sports training equipment with a built-in lifting function according to claim 2, characterized in that, The driving component includes an outer cylinder (206), a spline part (2061), a rocker (2062), a support part (207), a scroll spring (208) and a clamping component. The upper right side of the handle (101) is connected to the outer cylinder (206). The right end of the wire reel (204) is rotatably connected to the inside of the outer cylinder (206). A spline part (2061) is movably connected inside the outer cylinder (206). The spline part (2061) is slidably clamped to the right end of the wire reel (204). The right end of the spline part (2061) is rotatably connected to a rocker (2062) in a folded state. The bottom of the chassis (1) is connected to a support part (207) at a position below the wire winding disc (203). The threaded rod (201) passes through the support part (207). The wire winding disc (203) is rotatably connected to the support part (207), and a scroll spring (208) is connected between the wire winding disc (203) and the support part (207). A clamping component is provided on the outer cylinder (206).

4. The convenient transfer device for a sports training equipment with a built-in lifting function according to claim 3, characterized in that, The clamping component includes an inclined block (701), a first spring (702), a clamping block (703) and a second spring (704). An inclined block (701) is slidably connected to the upper side inside the outer cylinder (206). Two first springs (702) are connected between the inclined block (701) and the inside of the outer cylinder (206). A notch is provided at a position corresponding to the inclined block (701) at the right end of the wire reel (204). The inclined block (701) is clamped and matched with the notch. The spline part (2061) is in contact and cooperation with the inclined block (701). Clamping blocks (703) are respectively slidably connected to both sides of the spline part (2061). Second springs (704) are connected between the clamping blocks (703) and the inside of the spline part (2061). Slots are provided at positions corresponding to the clamping blocks (703) inside the outer cylinder (206). The clamping blocks (703) are clamped and matched with the slots on the inner wall of the outer cylinder (206).

5. The convenient transfer device for a sports training equipment with a built-in lifting function according to claim 4, characterized in that, It further includes a support frame (301), a sliding plate (302), a support cylinder (303) and a side wheel (304). A support frame (301) is slidably connected to the bottom of the chassis (1). Sliding plates (302) are symmetrically slidably connected to the support frame (301). Support cylinders (303) are connected to both sides of the sliding plates (302). Side wheels (304) are installed on the outer sides of the support cylinders (303).

6. The convenient transfer device for a sports training equipment with a built-in lifting function according to claim 5, characterized in that, It further includes a spur gear (401), a bevel gear (402), a long gear (403), a guide rod (4031), a transmission shaft (404), a bidirectional screw (405) and a belt set (406). The bottom of the threaded rod (201) is connected to the spur gear (401). The front side of the support frame (301) is connected to the bevel gear (402) through a rotating shaft. The rotating shaft is rotatably connected to the support frame (301). The top of the rotating shaft is connected to the long gear (403). The long gear (403) is slidably connected to the guide rod (4031) at the top. The guide rod (4031) is connected to the bottom of the chassis (1). The long gear (403) meshes with the spur gear (401). The front side of the bottom of the support frame (301) is rotatably connected to the transmission shaft (404). The front end of the transmission shaft (404) is also connected to the bevel gear (402). The two bevel gears (402) mesh with each other. A bidirectional screw (405) is threadedly connected between the two symmetrically arranged front and rear support cylinders (303). A belt set (406) is connected between the middle of the two bidirectional screws (405) and the transmission shaft (404).

7. The convenient transfer device for a sports training equipment with a built-in lifting function according to claim 6, characterized in that, It further includes a connecting frame (501), an air cylinder (502), a one-way valve (5021), a piston rod (503), an air pipe (504), a piston cylinder frame (505), a transmission pipe (506), a sealing rod (507) and a sealing plug (508). The front side of the chassis (1) is connected to the connecting frame (501). The connecting frame (501) is connected to the obliquely arranged air cylinder (502). A piston rod (503) is slidably connected inside the air cylinder (502). The upper end of the piston rod (503) is rotatably connected to the handle (101). The one-way valve (5021) is installed on the front side of the air cylinder (502). The right side of the air cylinder (502) is threadedly connected to the sealing plug (508). The rear end of the air cylinder (502) is connected to a double-headed air pipe (504). The bottom of the chassis (1) is symmetrically connected to the piston cylinder frame (505). The piston cylinder frame (505) includes two piston cylinders. The two piston cylinder frames (505) are connected by two transmission pipes (506) to the symmetric piston cylinders. The air pipe (504) is connected to and communicates with the front piston cylinder frame (505). Sealing rods (507) are connected to the positions corresponding to the piston cylinders of the piston cylinder frame (505) at the bottom of the support frame (301). The sealing rods (507) are in sealed sliding connection with the corresponding piston cylinders.

8. A convenient transfer device for a sports training equipment with a built-in lifting function according to claim 7, characterized in that, The size of the one-way valve (5021) is adapted to the size of a conventional sealing cover.

Images