CN108905116B - Simple tennis frame - Google Patents
Simple tennis frame Download PDFInfo
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- CN108905116B CN108905116B CN201810937477.0A CN201810937477A CN108905116B CN 108905116 B CN108905116 B CN 108905116B CN 201810937477 A CN201810937477 A CN 201810937477A CN 108905116 B CN108905116 B CN 108905116B
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- pawl
- upright post
- tennis
- ratchet wheel
- wire
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B61/00—Tennis nets or accessories for tennis or like games, e.g. volley-ball
- A63B61/003—Nets for tennis or like games or accessories therefor
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B61/00—Tennis nets or accessories for tennis or like games, e.g. volley-ball
- A63B61/02—Posts; Revolvably-mounted posts ; Straining or adjusting devices on the posts, e.g. coin- or time operated
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Handcart (AREA)
Abstract
The invention provides a simple tennis frame, which belongs to the field of sports equipment and comprises a stand column, wherein a blocking net is wound on the outer side of the stand column, and one end of the blocking net is fixedly connected to the side surface of the stand column; the supporting legs are arranged along the radial direction of the upright column and are in sliding connection with the upright column. The tennis frame is provided with the blocking net and the supporting legs, the two tennis frames are matched for use, the blocking net is unfolded, a simple tennis field can be formed, and people can conveniently play tennis. The supporting legs can be slidably arranged on the bottom of the upright post through the sliding structural characteristics.
Description
Technical Field
The invention relates to the field of sports equipment, in particular to a simple tennis frame.
Background
Tennis is a very popular sport, and the land occupation area of a regular tennis sport field is large, the cost for opening the tennis is high, and the use charge is also high. The tennis court is not available near a residential area, so that the tennis is inconvenient for people.
In the prior art, some simple tennis ball supports are arranged on the open ground to perform simple tennis opposite-playing sports, but the tennis ball supports are simple and crude in structure and inconvenient to use.
Disclosure of Invention
The invention provides a simple tennis frame, aiming at solving the problems in the prior art.
The invention is realized by the following steps:
a simple tennis frame comprises a stand column, wherein a blocking net is wound on the outer side of the stand column, and one end of the blocking net is fixedly connected to the side face of the stand column; the supporting legs are arranged along the radial direction of the upright column and are in sliding connection with the upright column.
Furthermore, the bottom of stand is provided with rather than dismantling the draw runner of being connected, the both sides of supporting legs connect in the draw runner, the supporting legs is extending structure, the tip of supporting legs is provided with the rubber pad.
Furthermore, a connecting strip is arranged at the free end of the barrier net, a magic tape surface is arranged on one side of the connecting strip, and a magic tape female surface is arranged on the other side of the connecting strip; the outside cover of barrier net is equipped with flexible protection casing.
Furthermore, the upright column comprises an inner cylinder and an outer cylinder, an accommodating cavity is formed in the inner cylinder, an opening is formed in the top of the inner cylinder, an interlayer is formed between the inner cylinder and the outer cylinder, and the blocking net is connected to the outer side of the outer cylinder;
a supporting table is arranged in the inner cylinder, a plurality of convex blocks are arranged on the side portion of the supporting table, a through groove is formed in the inner cylinder, the convex blocks penetrate through the through groove and extend into the interlayer, and each convex block is connected with a pull wire; the top of the interlayer is provided with a limiting sheet, the limiting sheet is provided with a plurality of limiting holes, and the top end of the stay wire penetrates through the limiting holes;
the top of the outer barrel is connected with a ratchet wheel, the top of the ratchet wheel is provided with a rotating wheel which is rotationally connected with the ratchet wheel, a plurality of tooth sockets are formed on the side part of the ratchet wheel, the edge of the rotating wheel is provided with an extending part which extends downwards, a pawl is arranged on the inner side of the extending part, and the end part of the pawl is clamped into the tooth sockets; the top end of the stay wire is connected to the bottom surface of the rotating wheel.
Furthermore, the number of the convex blocks is three, and the three convex blocks are uniformly distributed on the side part of the supporting platform at intervals.
Further, the ratchet wheel is sleeved on the top of the outer barrel, a connecting ring is arranged at the bottom of the ratchet wheel, a connecting hole is formed in the connecting ring, a jackscrew is arranged in the connecting hole, and the jackscrew abuts against the outer barrel.
Furthermore, an annular wire groove is formed in the bottom surface of the rotating wheel, and the top end of the pull wire is connected to the inside of the wire groove.
Furthermore, one end of the pawl is hinged with the inner side of the extension part, and a tension spring is connected between the middle part of the pawl and the extension part; a clamping groove is formed in the outer side of the extending part, a clamping piece is arranged in the clamping groove, the clamping piece can slide in the clamping groove, and the clamping piece is in transition fit with the clamping groove; the extension part is provided with a wire hole, the card is connected with a control wire, and the control wire penetrates through the wire hole and is connected with the pawl; the card is pulled to separate the pawl from the tooth slot.
The simple tennis frame provided by the invention is provided with the blocking net and the supporting legs, the two tennis frames are matched for use, the blocking net is unfolded, a simple tennis field can be formed, and tennis is convenient for people to play. The supporting legs can be slidably arranged on the bottom of the upright post through the sliding structural characteristics.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic front view of a simple tennis frame according to an embodiment of the present invention;
FIG. 2 is a schematic bottom view of a simple tennis frame according to an embodiment of the present invention;
FIG. 3 is a schematic top view of a simple tennis frame according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of the simple tennis frame of the present invention with the cover plate and the wheels removed;
FIG. 5 is a schematic bottom view of a runner of a simple tennis frame according to an embodiment of the present invention;
FIG. 6 is a schematic front view of a wheel in the simple tennis frame according to an embodiment of the present invention;
FIG. 7 is a schematic front view of a ratchet wheel of the simple tennis frame according to an embodiment of the present invention;
FIG. 8 is a schematic cross-sectional view of the top of the vertical post of the simple tennis frame according to an embodiment of the present invention;
fig. 9 is a schematic structural view of the simple tennis frame according to the embodiment of the present invention after the block net is deployed.
Summary of reference numerals: the device comprises a stand column 11, a protective cover 12, a rotating wheel 13, supporting legs 14, a barrier net 15, a sliding strip 16, a rubber pad 17, a connecting strip 18, an inner cylinder 19, an outer cylinder 20, an accommodating cavity 21, an interlayer 22, a supporting platform 23, a bump 24, a through groove 25, a pull wire 26, a limiting sheet 27, a limiting hole 28, a ratchet wheel 29, a tooth groove 30, a connecting ring 31, a connecting hole 32, a jackscrew 33, an extending part 34, a pawl 35, a wire groove 36, a tension spring 37, a clamping groove 38, a clamping sheet 39, a wire hole 40, a control wire 41, a clamping strip 42, a sliding groove 43, a connecting head 44, a.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Please refer to fig. 1-9.
The embodiment provides a simple tennis frame, which is provided with a blocking net and supporting legs, the blocking net is unfolded by matching the two tennis frames, a simple tennis field can be formed, and people can conveniently play tennis. The supporting legs can be slidably arranged on the bottom of the upright post through the sliding structural characteristics.
As shown in fig. 1 and 2, the simple tennis frame comprises a vertical column 11, a barrier net 15 is wound around the outer side of the vertical column 11, and one end of the barrier net 15 is fixedly connected to the side surface of the vertical column 11; the bottom of the upright post 11 is provided with a plurality of supporting feet 14, the supporting feet 14 are arranged along the radial direction of the upright post 11, and the supporting feet 14 are connected with the upright post 11 in a sliding manner. The bottom of the upright post 11 is provided with a slide bar 16 detachably connected with the upright post, two sides of the supporting leg 14 are connected with the slide bar 16, the supporting leg 14 is of a telescopic structure, and the end part of the supporting leg 14 is provided with a rubber pad 17.
The side part of the upright post 11 is provided with a connector 44 near the bottom, the bottom end of the connector 44 is hinged with the upright post 11, and the top of the connector 44 is provided with a jack.
As shown in fig. 9, the free end of the barrier net 15 is provided with a connecting strip 18, one side of the connecting strip 18 is provided with a hook and loop fastener surface, and the other side of the connecting strip 18 is provided with a hook and loop fastener female surface; the outside of the barrier net 15 is sleeved with a flexible protective cover 12.
As shown in fig. 4, the upright post 11 comprises an inner cylinder 19 and an outer cylinder 20, wherein an accommodating cavity 21 is formed inside the inner cylinder 19, an opening is formed at the top of the inner cylinder 19, an interlayer 22 is formed between the inner cylinder 19 and the outer cylinder 20, and the barrier net 15 is connected to the outer side of the outer cylinder 20; a supporting platform 23 is arranged in the inner cylinder 19, three convex blocks 24 are arranged on the side portion of the supporting platform 23, and the three convex blocks 24 are evenly distributed on the side portion of the supporting platform 23 at intervals. A through groove 25 is formed in the inner cylinder 19, the convex blocks 24 penetrate through the through groove 25 and extend into the interlayer 22, and each convex block 24 is connected with a pull wire 26; the top of the interlayer 22 is provided with a limiting sheet 27, the limiting sheet 27 is provided with a plurality of limiting holes 28, and the top end of the pull wire 26 penetrates through the limiting holes 28;
the top of the outer cylinder 20 is connected with a ratchet wheel 29, the top of the ratchet wheel 29 is provided with a rotating wheel 13 which is rotationally connected with the ratchet wheel 29, a plurality of tooth grooves 30 are formed on the side of the ratchet wheel 29, the edge of the rotating wheel 13 is provided with an extending part 34 which extends downwards, the inner side of the extending part 34 is provided with a pawl 35, and the end part of the pawl 35 is clamped into the tooth grooves 30; the top end of the wire 26 is attached to the bottom surface of the wheel 13.
As shown in fig. 7 and 8, the ratchet 29 is sleeved on the top of the outer cylinder 20, the bottom of the ratchet 29 is provided with a connecting ring 31, the connecting ring 31 is provided with a connecting hole 32, a jackscrew 33 is arranged in the connecting hole 32, and the jackscrew 33 is abutted against the outer cylinder 20.
As shown in fig. 5 and 6, an annular wire groove 36 is formed in the bottom surface of the runner 13, and the top end of the pull wire 26 is connected to the inside of the wire groove 36. One end of the pawl 35 is hinged with the inner side of the extension part 34, and a tension spring 37 is connected between the middle part of the pawl 35 and the extension part 34; a clamping groove 38 is formed in the outer side of the extending portion 34, a clamping piece 39 is arranged in the clamping groove 38, the clamping piece 39 can slide in the clamping groove 38, and the clamping piece 39 is in transition fit with the clamping groove 38; the extension part 34 is provided with a line hole 40, the card 39 is connected with a control line 41, and the control line 41 passes through the line hole 40 and is connected with the pawl 35; the detent 35 is disengaged from the slot 30 by toggling the tab 39.
The rotating wheel 13 is annular, three arc-shaped clamping strips 42 are arranged at the top of the ratchet wheel 29, an annular sliding groove 43 is arranged at the bottom of the rotating wheel 13, and the clamping strips 42 are clamped in the sliding groove 43, so that the rotating wheel 13 can rotate; the slide groove 43 is located outside the wire groove 36.
The center of the rotating wheel 13 is connected with a cover plate 45, the cover plate 45 is circular, and the edge of the cover plate 45 is in threaded connection with the inner side of the rotating wheel 13; the cover plate 45 is provided at its middle with a torsion bar 46.
The upright post 11 is a column structure of a tennis frame, and components such as a barrier net 15 and supporting legs 14 are arranged on the upright post 11. The blocking net 15 is wound outside the upright post 11, has a certain length, can be about 3-4 meters after being unfolded, and is wound outside the upright post 11 to be conveniently stored and unfolded.
The bottom of the upright post 11 is provided with a supporting foot 14, and the supporting foot 14 can support the upright post 11, so that the upright post 11 can be stably placed on the ground. And the supporting legs 14 and the upright post 11 are in sliding connection, when the automobile trunk support is not used, the supporting legs 14 slide and retract, so that the supporting legs 14 do not extend to the outer part of the upright post 11, the whole upright post 11 is small in size, and the automobile trunk support can be conveniently placed in an automobile trunk or other places and is convenient to transport. When in use, the supporting feet 14 can be slid to increase the distance between the supporting feet 14, thereby improving the stability of the upright post 11.
The bottom of the upright post 11 is provided with a slide bar 16, and the slide bar 16 is used for connecting the supporting feet 14. The supporting legs 14 are provided as a telescopic structure, and the supporting legs 14 are slid and extended to have a larger supporting range, so that the upright post 11 can be more stable. The end of the supporting leg 14 is provided with a rubber pad 17, and the rubber pad 17 is attached to the ground such as cement, so that the upright post 11 has larger friction force and can be more stable.
The side of the upright 11 is provided with a connector 44, and the connector 44 is used for connecting the support rod.
When the tennis frame is used, the two upright posts 11 are matched, the blocking nets 15 on the two upright posts 11 are unfolded, and the free ends of the blocking nets 15 are connected. The barrier net 15 has a weight, and the barrier net 15 is made of a flexible material, and has a tendency to move downward after being unfolded, so that a lateral pulling force is applied to the upright post 11, which may cause the upright post 11 to be unstable in standing. When tennis balls hit the barrier net 15, the vertical posts 11 are prone to fall down.
The bottom of the upright post 11 is provided with a connector 44, when in use, the connector 44 is turned to a horizontal position, and the two connectors 44 of the two upright posts 11 are internally connected with a support rod, so that the support rod can support the two upright posts 11. Counteract the pull force of barrier 15 to the side direction of stand 11, make stand 11 can stably stand on subaerial.
The ends of the barrier nets 15 are provided with connector bars 18, the two barrier nets 15 being connectable by the connector bars 18. The two sides of connecting strip 18 are provided with magic tape surface and magic tape surface, and when connecting the tip of two blocks 15, with the magic tape surface laminating of a connecting strip 18 on the magic tape surface of another block 15, make two blocks 15 can connect fast and stably. The outer side of the barrier net 15 is sleeved with a protective cover 12, the protective cover 12 is made of flexible materials and is in a cylindrical shape, openings are formed in two ends of the protective cover 12, and the barrier net 15 can not fall off from the side portion of the upright post 11 through the protective cover 12.
The upright post 11 is of a hollow structure, the top of the upright post is provided with the ratchet wheel 29 and the rotating wheel 13, tennis balls can be stored in the upright post 11, and the tennis balls can be quickly taken out from the inside of the upright post 11 when the tennis ball storage device is used, so that the upright post 11 can be used as a tennis ball storage device, and people can conveniently play tennis in a regular tennis place.
The column 11 has an inner cylinder 19 and an outer cylinder 20, an interlayer 22 is formed between the inner cylinder 19 and the outer cylinder 20, and a stopper 27, a stay 26, and the like are conveniently provided in the interlayer 22. The inner part of the inner barrel 19 is provided with a containing cavity 21, the diameter of the containing cavity 21 is 7-7.5cm, and is slightly larger than the diameter (6.5-6.8 cm) of a tennis ball, so that a plurality of tennis balls can be vertically arranged in the containing cavity 21, and the tennis balls cannot be clamped in the containing cavity 21.
The inner cylinder 19 has a support base 23 therein, and a plurality of tennis balls are placed above the support base 23. A projection 24 is provided on the side of the support platform 23, a pull wire 26 is provided on the projection 24, and the support platform 23 can be pulled upward by the pull wire 26, so that tennis balls can be taken out one by one. The side of the support platform 23 is provided with three bumps 24, and the three bumps 24 are uniformly arranged, so that the support platform 23 is uniformly stressed when being pulled upwards and can stably move upwards.
The inner cylinder 19 is provided with through slots 25 so that the projections 24 can pass through the through slots 25 and extend into the interlayer 22. The top of the interlayer 22 is provided with a limiting sheet 27, the limiting sheet 27 is circular, and the outer edge of the limiting sheet 27 is connected with the inner edge of the inner cylinder 19. The limiting sheet 27 is provided with three limiting holes 28, one pulling wire 26 passes through one limiting hole 28, and the pulling wire 26 below the limiting sheet 27 can be in a vertical state through the limiting effect of the limiting hole 28, so that the bump 24 can be stably lifted after the pulling wire 26 is pulled.
The ratchet wheel 29 is arranged on the outer side of the top of the outer cylinder 20, and the ratchet wheel 29 is tightly connected with the outer cylinder 20, so that the ratchet wheel 29 cannot rotate. The top of the ratchet wheel 29 is connected with a rotating wheel 13, the rotating wheel 13 is rotationally connected with the ratchet wheel 29, and the rotating wheel 13 is provided with a pawl 35, so that a ratchet wheel 29 mechanism is formed between the rotating wheel 13 and the ratchet wheel 29.
The edge of the rotating wheel 13 is provided with an extension part 34, a pawl 35 is arranged inside the extension part 34, the end part of the pawl 35 is connected in the tooth groove 30 outside the ratchet wheel 29, and the rotating wheel 13 can rotate and can only rotate in one direction under the condition that the pawl 35 is not subjected to other forces. The top end of the stay wire 26 is connected to the bottom surface of the rotating wheel 13, so that the rotating wheel 13 can drive the stay wire 26 to move when rotating, and further drive the supporting platform 23 to ascend.
In use, the support platform 23 is first placed at the bottom position, and tennis balls are placed into the accommodation cavity 21 one by one. When the tennis is taken out, the rotating wheel 13 is rotated, the rotating wheel 13 drives the pull wire 26 to move upwards, and the pull wire 26 pulls the support platform 23, so that the tennis can be lifted upwards, and the tennis can be taken out. This kind of get ball mode for the user can conveniently follow the stand 11 when playing to get the ball and take the ball, reduces and picks up the ball number of times, promotes the motion and experiences.
After all tennis balls in the upright 11 are taken out, the pawl 35 is pulled to separate the pawl 35 from the tooth slot 30 of the ratchet 29, so that the rotating wheel 13 can rotate reversely, the support platform 23 can descend to the lowest end of the accommodating cavity 21, and the tennis balls can be put into the accommodating cavity 21 again, so that the tennis balls can be recycled.
The ratchet wheel 29 is annular and is sleeved on the top of the outer barrel 20. The ratchet wheel 29 has a coupling ring 31 at the bottom, and the coupling ring 31 is also circular. The coupling ring 31 is provided with a coupling hole 32, a jack screw 33 is provided in the coupling hole 32, and the coupling ring 31 and the ratchet 29 can be tightly coupled to the top of the outer cylinder 20 by the jack screw 33 to keep the ratchet 29 immovable.
The annular wire groove 36 is formed in the bottom of the rotating wheel 13, so that the stay wire 26 can be temporarily stored in the wire groove 36 after being pulled upwards after the rotating wheel 13 is rotated, the stay wire 26 between the limiting sheet 27 and the rotating wheel 13 is not messed, the stay wire 26 can be pulled downwards when the rotating wheel 13 rotates reversely, and the support platform 23 can descend.
The end of the pawl 35 is hinged with the inner side of the extension part 34, so that the pawl 35 can move, and the middle part of the pawl 35 is provided with a tension spring 37, so that the pawl 35 can be stably clamped in the clamping groove 38 under the tension of the tension spring 37.
The provision of the catch 39 on the outside of the runner 13 enables the pawl 35 to be controlled on the outside of the runner 13 so that the pawl 35 can be easily separated from the pocket 38 to enable the runner 13 to rotate in the reverse direction and the support platform 23 to be lowered rapidly.
The extension portion 34 has a certain thickness, and a clamping groove 38 is arranged on the outer side of the extension portion 34, the clamping groove 38 is long, a clamping piece 39 is arranged in the clamping groove 38, and the clamping piece 39 is arc-shaped and matched with the outer side contour of the extension portion 34. The card 39 is arranged in the card slot 38 and is not easy to fall off, and the connection between the card 39 and the card slot 38 is tight, so that the card 39 cannot move in the card slot 38 under the condition that the card is not stirred. The card 39 is connected to the pawl 35 by a control line 41 which allows the position of the pawl 35 to be controlled when the card 39 is moved.
In a normal state, the control wire 41 located inside the extension portion 34 is slack, so that the pawl 35 is not controlled by the control wire 41, and the pawl 35 can move freely inside the extension portion 34. When the card 39 is pulled, the control wire 41 is pulled, and the pawl 35 is pulled, so that the pawl 35 can be attached to the inner wall surface of the extension portion 34, and the pawl 35 can be separated from the slot 30. At this time, the support table 23 is lowered by gravity, and the stay 26 is pulled to rotate the pulley 13 in the reverse direction, so that the support table 23 can be returned to the original position.
The pawl 35 is shown in the drawings as being arcuate, the gullet 30 is a slot, and the control wire 41 and the tension spring 37 are located on either side of the pawl 35. In practical embodiments, the pawl 35 is not necessarily of this shape, nor is the spline 30 designed such that the control wire 41 and the tension spring 37 may be on the same side of the pawl 35.
The top of the ratchet wheel 29 is provided with a clamping strip 42, the section of the clamping strip 42 is arc-shaped, so that after the clamping strip 42 is clamped into a sliding groove 43 at the bottom of the rotating wheel 13, a certain limiting force is provided, and the rotating wheel 13 is not easy to separate from the ratchet wheel 29. After the clamping strip 42 is clamped into the sliding groove 43, the rotating wheel 13 can be stably connected to the top of the ratchet wheel 29, the rotating wheel 13 can rotate, and when the rotating wheel 13 needs to be detached, the rotating wheel 13 can be lifted up forcibly.
The runner 13 is provided with a circular ring structure, so that tennis balls in the upright post 11 can be taken out. The middle of the rotating wheel 13 is connected with a cover plate 45, and the cover plate 45 is in threaded connection with the rotating wheel 13, so that the connection between the cover plate and the rotating wheel is stable; the middle of the cover plate 45 is provided with a torsion bar 46, and the cover plate 45 can be conveniently rotated through the torsion bar 46, so that the cover plate 45 is separated from the rotating wheel 13. When not in use, the cover plate 45 is connected to the middle part of the rotating wheel 13, and tennis balls stored in the accommodating cavity 21 can be prevented from falling off.
Therefore, the tennis frame with the structure is reasonable in structural design, can be used as a tennis net and also can be used as a container for storing tennis balls, and a user can select the tennis frame according to the requirement of the user. And the structure is compact, and the storage and the carrying are easy.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. The simple tennis frame is characterized by comprising a stand column, wherein a blocking net is wound on the outer side of the stand column, and one end of the blocking net is fixedly connected to the side surface of the stand column; the bottom of the upright post is provided with a plurality of supporting legs, the supporting legs are arranged along the radial direction of the upright post, and the supporting legs are connected with the upright post in a sliding manner;
the bottom of the upright post is provided with a sliding strip detachably connected with the upright post, two sides of the supporting leg are connected with the sliding strip, the supporting leg is of a telescopic structure, and the end part of the supporting leg is provided with a rubber pad; the free end of the barrier net is provided with a connecting strip, one side of the connecting strip is provided with a magic tape surface, and the other side of the connecting strip is provided with a magic tape female surface; a flexible protective cover is sleeved on the outer side of the barrier net;
the upright column comprises an inner cylinder and an outer cylinder, an accommodating cavity is formed in the inner cylinder, an opening is formed in the top of the inner cylinder, an interlayer is formed between the inner cylinder and the outer cylinder, and the barrier net is connected to the outer side of the outer cylinder;
a supporting table is arranged in the inner cylinder, a plurality of convex blocks are arranged on the side portion of the supporting table, a through groove is formed in the inner cylinder, the convex blocks penetrate through the through groove and extend into the interlayer, and each convex block is connected with a pull wire; the top of the interlayer is provided with a limiting sheet, the limiting sheet is provided with a plurality of limiting holes, and the top end of the stay wire penetrates through the limiting holes;
the top of the outer barrel is connected with a ratchet wheel, the top of the ratchet wheel is provided with a rotating wheel which is rotationally connected with the ratchet wheel, a plurality of tooth sockets are formed on the side part of the ratchet wheel, the edge of the rotating wheel is provided with an extending part which extends downwards, a pawl is arranged on the inner side of the extending part, and the end part of the pawl is clamped into the tooth sockets; the top end of the stay wire is connected to the bottom surface of the rotating wheel.
2. The simple tennis racket of claim 1, wherein there are three protrusions, and the three protrusions are evenly spaced at the side of the supporting platform.
3. The simple tennis frame according to claim 1, wherein the ratchet wheel is sleeved on the top of the outer cylinder, a connecting ring is arranged at the bottom of the ratchet wheel, a connecting hole is formed in the connecting ring, a jackscrew is arranged in the connecting hole, and the jackscrew abuts against the outer cylinder.
4. The simple tennis frame according to claim 1, wherein the bottom surface of the wheel is provided with an annular slot, and the top end of the pull wire is connected to the slot.
5. The simple tennis frame according to claim 1, wherein one end of the pawl is hinged to the inner side of the extension part, and a tension spring is connected between the middle part of the pawl and the extension part; a clamping groove is formed in the outer side of the extending part, a clamping piece is arranged in the clamping groove, the clamping piece can slide in the clamping groove, and the clamping piece is in transition fit with the clamping groove; the extension part is provided with a wire hole, the card is connected with a control wire, and the control wire penetrates through the wire hole and is connected with the pawl; the card is pulled to separate the pawl from the tooth slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810937477.0A CN108905116B (en) | 2018-08-17 | 2018-08-17 | Simple tennis frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810937477.0A CN108905116B (en) | 2018-08-17 | 2018-08-17 | Simple tennis frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108905116A CN108905116A (en) | 2018-11-30 |
| CN108905116B true CN108905116B (en) | 2020-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810937477.0A Active CN108905116B (en) | 2018-08-17 | 2018-08-17 | Simple tennis frame |
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| CN (1) | CN108905116B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201076723Y (en) * | 2007-09-24 | 2008-06-25 | 徐增林 | Ball net support |
| CN104338308A (en) * | 2013-08-06 | 2015-02-11 | 辛欢 | Portable table tennis device |
| CN104941163A (en) * | 2015-07-01 | 2015-09-30 | 朱姗姗 | Tennis frame |
| CN105749513A (en) * | 2016-04-05 | 2016-07-13 | 安徽机电职业技术学院 | Badminton net fixture with storage function |
| US20180015343A1 (en) * | 2016-07-13 | 2018-01-18 | The Prophet Corporation | Retractable recreational net system and methods of use |
| CN206508485U (en) * | 2016-09-20 | 2017-09-22 | 赵龙 | Shuttlecock ball picking device |
| CN207614304U (en) * | 2017-05-19 | 2018-07-17 | 戴见霖 | Ball bylinder |
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2018
- 2018-08-17 CN CN201810937477.0A patent/CN108905116B/en active Active
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| CN108905116A (en) | 2018-11-30 |
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