CN114307094A - Volleyball net self-adaptation tensioning release - Google Patents
Volleyball net self-adaptation tensioning release Download PDFInfo
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- CN114307094A CN114307094A CN202210035289.5A CN202210035289A CN114307094A CN 114307094 A CN114307094 A CN 114307094A CN 202210035289 A CN202210035289 A CN 202210035289A CN 114307094 A CN114307094 A CN 114307094A
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- slide
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Abstract
The invention relates to a volleyball net self-adaptive tensioning and releasing device, which comprises a shell, wherein a cross rod is arranged on the right side of the shell, the cross rod penetrates through the right end surface of the shell and is arranged in a cavity of the shell, a rectangular cavity is arranged at the right end of the cross rod, a cross hole is formed in the left end of the rectangular cavity, a slide rod is arranged in the cross hole, a first spring is arranged in the middle of the slide rod, a vertical plate is arranged at the left end of the slide rod, a second spring is fixed on the vertical rod, an annular block is arranged at the right end of the cross rod, the annular block can slide left and right, a blind hole is formed in the inner edge surface of the annular block, a plurality of through holes are formed in the rectangular cavity in the horizontal direction, a pin is arranged in each blind hole, the pin can limit the annular block to slide right but not limit the annular block to slide left when the slide rod slides left relative to the cross rod, and two pins slide to the bottoms of the blind holes and are separated from the through holes; the invention provides tension for the net through the second spring, and the annular block is separated from the cross bar when the cross bar and the slide bar are relatively displaced, so that the competition fairness is greatly improved, and the safety of the net is improved.
Description
Technical Field
The invention relates to the field of volleyball protection, in particular to a self-adaptive tensioning and releasing device for a volleyball net.
Background
In volleyball match, need to guarantee that the net top is in same level and to highly having certain requirement, consequently, need to guarantee that the supporting wire of net top needs to remain the tensioning state all the time, but the sportsman all probably draws ground to the net at block and rescue in-process limbs or clothing, along with the increase of net live time, the net twine warp or elasticity reduces to make the net relax and can't continue to keep the tensioning state, also influence the fairness of match, when the condition that limbs or clothing take place the hookup with the net, the human body probably leads to the fact bigger traction force to the net, not only can make the person receive the injury also probably make the net supporting wire pulled apart simultaneously.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the volleyball net self-adaptive tensioning and releasing device is adopted, so that the problem of protecting a person and a net when the net is pulled is solved.
The technical scheme includes that the device comprises a shell, a cross rod is arranged on the right side of the shell and penetrates through the right end face of the shell to the cavity of the shell, the cross rod can horizontally slide left and right, a rectangular cavity is formed in the right end of the cross rod, a cross hole is formed in the left end of the rectangular cavity and penetrates through the left end face of the cross rod, a slide rod is arranged in the cross hole, a first spring is fixed in the middle of the slide rod, the other end of the first spring is fixed on the cross hole, the first spring always provides the slide rod with right thrust relative to the cross rod, the left end of the slide rod penetrates through the left end face of the shell, a vertical plate is fixed on the part, located on the outer side of the shell, of the left end of the slide rod, a second spring is fixed on the vertical plate, and always provides the vertical plate with left thrust relative to the shell;
the horizontal pole right-hand member has a ring piece, the ring piece suit is on the horizontal pole outer fringe face and can follow the horizontal pole horizontal slip, a blind hole has been seted up respectively at both ends about the ring piece inner fringe face, a plurality of through-holes that run through the horizontal pole outer fringe face are seted up along the horizontal direction at both ends about the rectangle cavity, all there is a pin in every blind hole, pin one end can stretch out the blind hole and place in the through-hole, can restrict the ring piece when the pin is arranged in the through-hole and slide right but not restrict the ring piece and slide left, when the slide bar slides left for the horizontal pole, two pins slide to the blind hole bottom and break away from the through-hole.
The upper end and the lower end of the rectangular cavity are respectively provided with a sliding block, the sliding blocks can slide up and down along the rectangular cavity, one end of each sliding block, which is close to each other, is an inclined plane with gradually increased intervals from left to right, the right end of each sliding rod extends into the rectangular cavity, the diameter of each sliding rod is gradually increased from left to right, and the sliding rods slide left relative to the cross rods and can drive the two sliding blocks to move away from each other up and down through the inclined planes;
a plurality of ejector blocks are fixed on each sliding block at positions corresponding to the through holes, each ejector block corresponds to one through hole, the ejector blocks can move up and down along the through holes along the sliding blocks, and when the two sliding blocks move to the maximum spacing position, the outer ends of the ejector blocks are flush with the outer edge surface of the cross rod.
A third spring is fixed at one end of each pin close to the bottom of the blind hole and always provides the pin with a thrust force moving towards the outer side of the blind hole,
the relative one side of two pins for from the inclined plane that the left side right side interval diminishes gradually, the through-hole lateral surface can make it give way to blind hole inboard extrusion pin through the inclined plane when the pin slides left to do not restrict the left removal of annular piece.
And the upper end and the lower end of the annular block are respectively fixed with a vertical rod in the vertical direction.
The elastic force of the first spring is far larger than that of the second spring.
The part from the left end of the cross rod to the inside of the shell cavity is fixedly provided with a lead block, and the upper end face and the lower end face of the lead block are respectively attached to the upper end face and the lower end face of the shell cavity, so that the cross rod can horizontally slide left and right in the shell cavity.
The lower end of the shell is fixed with a supporting rod, the lower end of the supporting rod is fixed with a base, and a balancing weight is fixed on the base.
The invention provides tension for the net through the second spring, and the annular block is separated from the cross bar when the cross bar and the slide bar are relatively displaced, so that the competition fairness is greatly improved, and the safety of the net is improved.
Drawings
Fig. 1 is a front view of the present invention.
FIG. 2 is a front cross-sectional view of the present invention with the support rod, base and weight removed.
FIG. 3 is an enlarged view of A in FIG. 2 according to the present invention.
Fig. 4 is a front cross-sectional view of a cross-bar of the present invention.
Fig. 5 is an enlarged detail view of the slider and top block of the present invention.
FIG. 6 is a front cross-sectional view of an annular block of the present invention.
FIG. 7 is a diagram of the connection relationship between the present invention and the net.
Detailed Description
The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings.
As shown in fig. 1 to 7, the invention comprises a shell 1, a cross rod 2 is arranged on the right side of the shell 1, the cross rod 2 penetrates through the right end face of the shell 1 to the cavity of the shell 1, the cross rod 2 can horizontally slide left and right, a rectangular cavity 3 is arranged on the right end of the cross rod 2, a cross hole 5 is arranged at the left end of the rectangular cavity 3, the cross hole 5 penetrates through the left end face of the cross rod 2, a slide rod 6 is arranged in the cross hole 5, a first spring 7 is fixed in the middle of the slide rod 6, the other end of the first spring 7 is fixed on the cross hole 5, the first spring 7 always provides a right thrust for the slide rod 6 relative to the cross rod 2, the left end of the slide rod 6 penetrates through the left end face of the shell 1, a vertical plate 8 is fixed on the part of the left end of the slide rod 6, a second spring 9 is fixed on the vertical plate 8, and the second spring 9 always provides a left thrust for the vertical plate 8 relative to the shell 1;
2 right-hand members of horizontal pole have a ring piece 10, ring piece 10 suit is on 2 outer fringe faces of horizontal pole and can follow 2 horizontal sliding of horizontal pole, a blind hole 11 has been seted up respectively at both ends about the ring piece 10 inner fringe face, rectangular cavity 3 is gone up and is seted up a plurality of through-holes 12 that run through 2 outer fringe faces of horizontal pole at both ends along the horizontal direction, all have a pin 13 in every blind hole 11, pin 13 one end can stretch out blind hole 11 and place in through-hole 12, pin 13 can restrict ring piece 10 and slide right but do not restrict ring piece 10 and slide left when placing in through-hole 12, when slide bar 6 slides left for horizontal pole 2, two pins 13 slide to blind hole 11 bottoms and break away from through-hole 12.
The upper end and the lower end of the rectangular cavity 3 are respectively provided with a sliding block 4, the sliding blocks 4 can slide up and down along the rectangular cavity 3, the end, close to each other, of each sliding block 4 is an inclined plane with gradually increasing intervals from left to right, the right end of each sliding rod 6 extends into the rectangular cavity 3, the diameter of each sliding rod 6 is gradually increased from left to right, and the sliding rods 6 slide left relative to the cross rods 2 and can drive the sliding blocks 4 to move away from each other up and down through the inclined planes;
a plurality of ejector blocks 14 are fixed on each sliding block 4 at positions corresponding to the through holes 12, each ejector block 14 corresponds to one through hole 12, the ejector blocks 14 can move up and down along the through holes 12 along with the sliding blocks 4, and when the two sliding blocks 4 move to the maximum spacing position, the outer ends of the ejector blocks 14 are flush with the outer edge surface of the cross rod 2.
A third spring 16 is fixed at one end of each pin 13 close to the bottom of the blind hole 11, the third spring 16 always provides the pin 13 with a pushing force moving towards the outer side of the blind hole,
the opposite face of two pins 13 be the inclined plane that the interval diminishes gradually from a left side to a right side, through-hole 12 lateral surface can extrude pin 13 to the blind hole 11 inboard through the inclined plane and make it give way when pin 13 slides left to do not restrict the left removal of annular piece 10.
The upper end and the lower end of the annular block 10 are respectively fixed with a vertical rod 15 in the vertical direction.
The elastic force of the first spring 7 is much larger than that of the second spring 9.
The part from the left end of the cross rod 2 to the cavity of the shell 1 is fixed with a lead block 17, the upper end surface and the lower end surface of the lead block 17 are respectively attached to the upper end surface and the lower end surface of the cavity of the shell 1, so that the cross rod 2 can horizontally slide left and right in the cavity of the shell 1.
The lower end of the shell 1 is fixed with a support rod 18, the lower end of the support rod 18 is fixed with a base 19, and a balancing weight 20 is fixed on the base 19.
When the ball net is used, two devices are symmetrically placed left and right, the vertical rods 15 are positioned on the opposite sides of the two shells 1, then the left end and the right end of the ball net are respectively fixed on the vertical rods 15 on the two sides, the direction of the use process is described by taking the left device as a standard, the direction of the right device is opposite to the left side, the vertical rods 15 are manually pushed leftwards, the cross rod 2 is pushed rightwards, the annular block 10 slides leftwards relative to the cross rod 2 until the ball net is tensioned, the second spring 9 is in a compressed state, because the opposite surfaces of the two pins 13 are inclined surfaces with gradually reduced intervals from left to right, in the process that the pins 13 slide leftwards along with the annular block 10, the outer side surfaces of the through holes 12 can press the pins 13 to the inner side of the blind holes 11 through the inclined surfaces to give way, so that the leftward movement of the annular block 10 is not limited, and the pins 13 are positioned in the nearest through holes 12 under the action of the third spring 16 after the ball net is tensioned, the right movement of the annular block 10 relative to the cross bar 2 can be limited, and the net is always in a tension state under the elastic action of the second spring 9;
when players possibly cause limbs or clothes to be hooked with the net in the processes of blocking and saving the ball in the process of competition, the human body can provide a huge pulling force for the net, the cross rod 2 pulls the slide rod 6 to move rightwards through the first spring 7, the slide rod 6 and the vertical plate 8 completely overcome the elastic force of the second spring 9 to move rightmost, until the vertical plate 8 cannot move rightmost continuously due to the blocking of the left end surface of the shell 1, the cross rod 2 continuously overcomes the elastic force of the first spring 7 to compress the first spring 7 and simultaneously continuously move rightmost, the right end of the slide rod 6 moves leftwards relative to the cross rod 2, the two slide blocks 4 are respectively pressed to the upper side and the lower side by the opposite inclined surfaces through the two slide blocks 4, the jacking blocks 14 on the two slide blocks 4 synchronously move outwards along the through holes 12 until the pin 13 placed in the through hole 12 is completely ejected out of the through hole 12 through the elastic force of the third spring 16, the annular block 10 does not receive the restriction of the pin 13 and rapidly slides rightmost under the huge pulling force provided by the human body and is separated from the cross rod 2, the net is loosened, secondary damage to the player is prevented, and the net is prevented from being broken by the supporting line.
After the device is pulled to move rightwards through the cross rod 2, the vertical plate 8 is blocked by the left end face of the shell 1 and cannot move rightwards, the cross rod 2 overcomes the elastic force of the first spring 7 to move rightwards continuously, the part of the large diameter of the right end of the sliding rod 6 is respectively extruded to the upper side and the lower side through the inclined plane to form the sliding block 4, the top block 14 pushes out the pin 13 originally arranged in the through hole 12 along with the movement of the sliding block 4, the annular block 10 is not limited by the right sliding, the ball net is loosened by rapidly sliding rightwards until the sliding block is separated from the cross rod 2, and the phenomenon that limbs or clothes are hooked with the ball net in the blocking and saving processes of a player in a match process is prevented, so that the player cannot be separated from the ball net, the ball net causes secondary damage to the player, meanwhile, the ball net supporting line can be prevented from being pulled to be broken, and the ball net is further protected;
this device can restrict the annular block 10 and move for horizontal pole 2 right when arranging through-hole 12 in through-hole through pin 13, makes the net play tensioning state all the time under the effect of second spring 9, even if make the net when using for a long time, the net twine warp or elasticity reduces and makes the net relax and can't continue to keep tensioning state, and the spring can in time pass through elasticity with the net to the outside tensioning, the net high error that significantly reduces improves the fairness of match.
Claims (7)
1. The self-adaptive tensioning and releasing device of the volleyball net is characterized by comprising a shell (1), wherein a cross rod (2) is arranged on the right side of the shell (1), the cross rod (2) penetrates through the right end face of the shell (1) and is arranged in a cavity of the shell (1), the cross rod (2) can horizontally slide left and right, a rectangular cavity (3) is formed in the right end of the cross rod (2), a cross hole (5) is formed in the left end of the rectangular cavity (3), the cross hole (5) penetrates through the left end face of the cross rod (2), a slide rod (6) is arranged in the cross hole (5), a first spring (7) is fixed in the middle of the slide rod (6), the other end of the first spring (7) is fixed on the cross hole (5), the left end of the slide rod (6) penetrates through the left end face of the shell (1), a vertical plate (8) is fixed on the part, which is positioned on the outer side of the shell (1), and a second spring (9) is fixed on the vertical plate (8);
horizontal pole (2) right-hand member has a ring piece (10), ring piece (10) suit is on horizontal pole (2) outer fringe face and can follow horizontal pole (2) horizontal slip, a blind hole (11) have been seted up respectively at both ends about ring piece (10) inner fringe face, rectangle cavity (3) upper and lower both ends are seted up a plurality of through-holes (12) that run through horizontal pole (2) outer fringe face along the horizontal direction, all there is a pin (13) in every blind hole (11), pin (13) one end can stretch out blind hole (11) and place in through-hole (12), pin (13) can restrict ring piece (10) and slide right but do not restrict ring piece (10) and slide left when placing through-hole (12) in, when slide bar (6) slide left for horizontal pole (2), two pins (13) slide to blind hole (11) bottom and break away from through-hole (12).
2. A volleyball net protection device according to claim 1, wherein, the upper and lower ends of the rectangular cavity (3) are respectively provided with a slide block (4), the slide blocks (4) can slide up and down along the rectangular cavity (3), the end of the two slide blocks (4) close to each other is an inclined surface with gradually increasing interval from left to right, the right end of the slide rod (6) extends into the rectangular cavity (3) and the slide rod (6) becomes thicker from left to right, the slide rod (6) slides leftwards relative to the cross rod (2) and can drive the two slide blocks (4) to move away from each other up and down through the inclined surface;
a plurality of ejector blocks (14) are fixed on each sliding block (4) at positions corresponding to the through holes (12), each ejector block (14) corresponds to one through hole (12), the ejector blocks (14) can move up and down along the through holes (12) along with the sliding blocks (4), and when the two sliding blocks (4) move to the maximum spacing position, the outer ends of the ejector blocks (14) are flush with the outer edge surface of the cross rod (2).
3. Volleyball net protection device according to claim 1, wherein each pin (13) has a third spring (16) fixed to its end near the bottom of the blind hole (11), the third spring (16) always giving the pin (13) a pushing force moving to the outside of the blind hole,
a volleyball net protection device according to claim 1, wherein the opposite sides of the two pins (13) are inclined surfaces with a gradually decreasing interval from left to right.
4. A volleyball net protection device according to claim 1, wherein a vertical rod (15) is fixed to each of upper and lower ends of the ring block (10).
5. Volleyball net protection device according to claim 1, wherein the spring force of the first spring (7) is much greater than the spring force of the second spring (9).
6. Volleyball net protection device according to claim 1, wherein the lead block (17) is fixed to the left end of the crossbar (2) to the part inside the cavity of the housing (1), and the upper and lower end faces of the lead block (17) are respectively attached to the upper and lower end faces of the cavity of the housing (1) so that the crossbar (2) can horizontally slide left and right inside the cavity of the housing (1).
7. Volleyball net protection device according to claim 1, wherein, a support rod (18) is fixed at the lower end of the housing (1), a base (19) is fixed at the lower end of the support rod (18), and a weight block (20) is fixed on the base (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210035289.5A CN114307094B (en) | 2022-01-13 | 2022-01-13 | Volleyball net self-adaptation tensioning release |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210035289.5A CN114307094B (en) | 2022-01-13 | 2022-01-13 | Volleyball net self-adaptation tensioning release |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114307094A true CN114307094A (en) | 2022-04-12 |
| CN114307094B CN114307094B (en) | 2022-09-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210035289.5A Active CN114307094B (en) | 2022-01-13 | 2022-01-13 | Volleyball net self-adaptation tensioning release |
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| Country | Link |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4415163A (en) * | 1982-02-22 | 1983-11-15 | Schoenig Darrell A | Portable volleyball apparatus |
| US4444397A (en) * | 1981-12-04 | 1984-04-24 | Senoh Kabushiki Kaisha | Adjusting device for a net pole |
| US5651552A (en) * | 1996-04-08 | 1997-07-29 | Whelchel; Sean P. | Net attachment and tensioning system |
| CN104998387A (en) * | 2015-07-29 | 2015-10-28 | 安徽理工大学 | Scalable automatic tension solar tennis support |
| CN108434691A (en) * | 2018-04-08 | 2018-08-24 | 南阳师范学院 | A kind of outdoor physical education Tennis net frame that can take in ground |
-
2022
- 2022-01-13 CN CN202210035289.5A patent/CN114307094B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4444397A (en) * | 1981-12-04 | 1984-04-24 | Senoh Kabushiki Kaisha | Adjusting device for a net pole |
| US4415163A (en) * | 1982-02-22 | 1983-11-15 | Schoenig Darrell A | Portable volleyball apparatus |
| US5651552A (en) * | 1996-04-08 | 1997-07-29 | Whelchel; Sean P. | Net attachment and tensioning system |
| CN104998387A (en) * | 2015-07-29 | 2015-10-28 | 安徽理工大学 | Scalable automatic tension solar tennis support |
| CN108434691A (en) * | 2018-04-08 | 2018-08-24 | 南阳师范学院 | A kind of outdoor physical education Tennis net frame that can take in ground |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114307094B (en) | 2022-09-13 |
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