CN113877168A

CN113877168A - Volleyball post tensioner bullwheel

Info

Publication number: CN113877168A
Application number: CN202111351322.7A
Authority: CN
Inventors: 肖勇
Original assignee: Physical Education College of Zhengzhou University
Current assignee: Physical Education College of Zhengzhou University
Priority date: 2021-11-16
Filing date: 2021-11-16
Publication date: 2022-01-04
Anticipated expiration: 2041-11-16
Also published as: CN113877168B

Abstract

The invention discloses a volleyball post stringing device, and belongs to the technical field of sports goods. This volleyball post tensioner bullwheel includes: the device comprises a cylinder, a plurality of support rods and a plurality of hooks, wherein a first roller is rotatably arranged at the top of the cylinder, and a through hole is formed in the middle of the cylinder; the plurality of support rods are evenly distributed along the length direction of the column body, one end of each support rod is fixedly connected with the arc surface of the column body, and the other end of each support rod is rotatably provided with a second roller; the hooks are distributed on two sides of each support rod at intervals, and each hook is fixed on the arc surface of the column body. The volleyball post stringing device provided by the invention adopts multiple hanging and winding modes to realize the process of stringing ropes with different lengths, the whole process is simple to operate, the ropes are not easy to deviate, and the problem that the ropes are blocked due to the fact that a hand-operated complex structure is damaged and drum-type winding is carried out is solved.

Description

Volleyball post tensioner bullwheel

Technical Field

The invention relates to the technical field of sports goods, in particular to a volleyball post stringing device.

Background

The volleyball net is one of indispensable utensils in volleyball sports, and is arranged between two volleyball posts with the wire tightening function so as to tighten the volleyball net;

the volleyball post tight line device on the market is many through manual rotation, realizes the tension of volleyball net with the rope winding on the reel, and such inlet wire device not only structure is complicated, and the process of rope winding reel easily causes the rope skew moreover, leads to the rope card to die, and the practicality is not enough.

Disclosure of Invention

The invention aims to overcome the problems in the prior art and provides a volleyball post stringing device.

The invention provides a volleyball post stringing device, which comprises: the device comprises a cylinder, a plurality of support rods and a plurality of hooks, wherein a first roller is rotatably arranged at the top of the cylinder, and a through hole is formed in the middle of the cylinder; the plurality of support rods are evenly distributed along the length direction of the column body, one end of each support rod is fixedly connected with the arc surface of the column body, and the other end of each support rod is rotatably provided with a second roller; the hooks are distributed on two sides of each support rod at intervals, and each hook is fixed on the arc surface of the column body.

Preferably, still be equipped with the spout along its length direction on the cylinder, be equipped with the slider in the spout, the top of slider is through the one end of articulated arc of articulated shaft, and the arc surface of cylinder is hugged closely to the intrados of arc, the cover is equipped with the torque spring that makes the arc turn to the cylinder on the articulated shaft, and torque spring's one end is fixed on the slider, and torque spring's the other end is fixed on the arc.

Preferably, the lengths of the plurality of support rods are different, and the support rod in the middle position is a telescopic rod with adjustable length.

Preferably, the telescopic link includes first barrel, second barrel and compression spring, the one end of first barrel is fixed on the cylinder, and the other end inner wall cover of first barrel is established on the outer wall of second barrel, and the tip of the second barrel of keeping away from first barrel rotates and sets up the second gyro wheel, and the inside bottom surface of compression spring is connected to the inside bottom surface of first barrel, and the inside bottom surface of second barrel is connected to the other end of compression spring.

Preferably, the inner arc surface of the arc plate is provided with a rubber pad capable of increasing friction force.

Preferably, the first roller and the second roller rotate in the same direction.

Compared with the prior art, the invention has the beneficial effects that:

1. the volleyball post stringing device disclosed by the invention adopts a mode of multiple hanging and winding to realize the process of tensioning ropes with different lengths, the whole process is simple to operate, the ropes are not easy to deviate, and the problem that the ropes are blocked due to the fact that a hand-operated complex structure is damaged and drum-type winding is carried out is avoided;

2. after the rope is wound, the sliding block is properly dragged, the arc-shaped plate is placed on the surface of the rope, the arc-shaped plate can apply force close to the column body to the rope far away from the column body, the arc-shaped plate pulls the rope to the column body so as to tighten the rope, and meanwhile, the rope can recover the original stressed state after being stressed and bent;

3. select the bracing piece of appropriate number and appropriate length to support the rope according to the circumstances, lead to the lax phenomenon of rope when having reduced the tight rope of a plurality of bracing pieces of the same length.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a partially enlarged structure of the present invention;

FIG. 3 is an internal cross-sectional view of the extension pole of the present invention;

FIG. 4 is a schematic view of the structure of the telescopic rod of the present invention that is tightened by the first roller;

fig. 5 is a schematic structural view of the through hole stringing of the telescopic rod of the present invention.

Description of reference numerals:

1. the device comprises a cylinder, 11, a first roller, 12, a through hole, 13, a sliding groove, 14, a sliding block, 15, an arc-shaped plate, 2, a supporting rod, 21, a second roller, 22, a first cylinder, 23, a second cylinder, 24, a compression spring and 3, and a hook.

Detailed Description

The following detailed description of specific embodiments of the invention is provided, but it should be understood that the scope of the invention is not limited to the specific embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

The invention provides a volleyball post stringing device, which comprises the following components as shown in figure 1: the device comprises a column body 1, a plurality of support rods 2 and a plurality of hooks 3, wherein the top of the column body 1 is rotatably provided with a first roller 11, and the middle part of the column body is provided with a through hole 12; the plurality of support rods 2 are evenly distributed along the length direction of the column body 1, one end of each support rod 2 is fixedly connected with the arc surface of the column body 1, and the other end of each support rod 2 is rotatably provided with a second roller 21; a plurality of hooks 3 are distributed at intervals on two sides of each supporting rod 2, and each hook 3 is fixed on the arc surface of the column body 1.

The supporting rods 2 and the hooks 3 are distributed at intervals, so that the supporting rods 2 apply pushing force far away from the column body 1 to the rope, the hooks 3 apply pulling force close to the column body 1 to the rope, the two forces are opposite, and the rope is tightened through interaction of the pushing force and the pulling force; when the rope is wound and tightened from the first roller 11 (as shown in fig. 4), one end of the rope is connected to the column body 1, the other end of the rope is connected to the top of the other column body 1, the rope sequentially bypasses the second roller 21 and the hook 3 on the top of the support rod 2 through manual operation, and the winding times are properly selected according to the tightening degree of the rope; when the rope is wound and tightened from the through hole 12 (as shown in fig. 5), one end of the rope is connected to the column body 1, the other end of the rope penetrates through the through hole 12 and is connected to the other column body 1, the rope sequentially bypasses the second roller 21 and the hook 3 at the top of the supporting rod 2 through manual operation, and the winding times are properly selected according to the tightening degree of the rope; the utility model provides a volleyball post tensioner adopts to articulate many times and realizes carrying out the process that tightens with winding mode to the rope of different length, whole process easy operation, and the difficult skew of rope has avoided the complex construction of hand formula to be easily bad, and the drum-type winding leads to the dead problem of rope card.

Preferably, as shown in fig. 2, the cylinder 1 is further provided with a sliding groove 13 along the length direction thereof, the sliding groove 13 is internally provided with a sliding block 14, the top of the sliding block 14 is hinged to one end of the arc plate 15 through a hinge shaft, the inner arc surface of the arc plate 15 is tightly attached to the arc surface of the cylinder 1, the hinge shaft is sleeved with a torsion spring for enabling the arc plate 15 to turn to the cylinder 1, one end of the torsion spring is fixed on the sliding block 14, and the other end of the torsion spring is fixed on the arc plate 15.

In the in-process that uses, the condition of net is touched including volleyball striking net and sportsman's hand can all make the rope atress and crooked, and then change volleyball net's the state of tightening, simultaneously, the aforesaid articulates the rope and can not guarantee all length and size's rope and can tightly just tighten with winding mode, design above-mentioned structure for this reason, after the rope winding is good, suitably drag slider 14, place arc 15 in the rope surface, arc 15 can apply the power of being close to cylinder 1 to the rope of keeping away from cylinder 1, arc 15 draws the rope to cylinder 1 and then makes the rope tighten, make the rope can resume original stress state after the atress is crooked simultaneously.

Preferably, the lengths of the plurality of support rods 2 are different from each other as shown in fig. 1 to 4 to 5, and the support rod 2 at the middle position is a telescopic rod with adjustable length.

When tensioning the rope, a plurality of bracing pieces 2 of the same length can leave great surplus (being close to the length of two bracing pieces 2) for the rope, lead to the rope can not tighten, influence volleyball net's use, consequently above-mentioned design can make people when using, select the bracing piece 2 of appropriate number and appropriate length to support the rope according to the circumstances, has reduced the phenomenon that leads to the rope lax when the tight rope of a plurality of bracing pieces 2 of the same length.

Preferably, as shown in fig. 3, the telescopic rod includes a first cylinder 22, a second cylinder 23 and a compression spring 24, one end of the first cylinder 22 is fixed on the cylinder 1, the inner wall of the other end of the first cylinder 22 is sleeved on the outer wall of the second cylinder 23, the end of the second cylinder 23 far away from the first cylinder 22 is rotatably provided with a second roller 21, the inner bottom surface of the first cylinder 22 is connected with one end of the compression spring 24, and the other end of the compression spring 24 is connected with the inner bottom surface of the second cylinder 23.

Above-mentioned telescopic link can look the length of rope and freely stretch out and draw back, thoroughly avoids the problem that the rope can not tighten.

Preferably, the inner arc surface of the arc plate 15 is provided with a rubber pad capable of increasing friction force.

Preferably, the first roller 11 and the second roller 21 rotate in the same direction as shown in fig. 1-4-5.

The use method of the volleyball post stringing device comprises the following steps:

firstly, fixing the bottoms of the cylinder bodies 1 of the two volleyball post stringing devices at two sides of the middle part of a field; then, one end of the rope on the upper part of the volleyball net is tied on the upper part of the left side column body 1, the other end of the rope goes around the first roller 11 on the top of the right side column body 1 and is tied on the right side column body 1, a person drags the rope to select a proper number of hooks 3 to hook the rope, and simultaneously selects a proper number of support rods 2 to tighten the rope (as shown in figure 4); finally, be in the lower part of right side cylinder 1 with the rope one end of volleyball net's lower part, the other end of rope passes through the through-hole 12 of right side cylinder 1, passes the through-hole 12 of left side cylinder 1 again to be tied on left side cylinder 1, the people hand drags the rope and selects the couple 3 of suitable quantity to articulate the rope, selects the tight rope (as figure 5) of bracing piece 2 of suitable quantity simultaneously.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A volleyball post tensioner device, its characterized in that includes:

the top of the column body (1) is rotatably provided with a first roller (11), and the middle part of the column body is provided with a through hole (12);

the supporting rods (2) are evenly distributed along the length direction of the column body (1), one end of each supporting rod (2) is fixedly connected with the arc surface of the column body (1), and the other end of each supporting rod (2) is rotatably provided with a second roller (21);

the hooks (3) are distributed on two sides of each supporting rod (2) at intervals, and each hook (3) is fixed on the arc surface of the column body (1).

2. The volleyball post stringing device according to claim 1, wherein the cylinder (1) is further provided with a sliding groove (13) along the length direction of the cylinder, a sliding block (14) is arranged in the sliding groove (13), the top of the sliding block (14) is hinged with one end of the arc-shaped plate (15) through a hinge shaft, the inner arc surface of the arc-shaped plate (15) is tightly attached to the arc surface of the cylinder (1), the hinge shaft is sleeved with a torsion spring which enables the arc-shaped plate (15) to turn to the cylinder (1), one end of the torsion spring is fixed on the sliding block (14), and the other end of the torsion spring is fixed on the arc-shaped plate (15).

3. The volleyball post tightening device according to claim 1, wherein the plurality of support rods (2) have different lengths, and the support rod (2) at the middle position is a telescopic rod with an adjustable length.

4. A volleyball post stringing device according to claim 3, wherein the telescopic rod comprises a first cylinder (22), a second cylinder (23) and a compression spring (24), one end of the first cylinder (22) is fixed on the cylinder (1), the inner wall of the other end of the first cylinder (22) is sleeved on the outer wall of the second cylinder (23), the end of the second cylinder (23) far away from the first cylinder (22) is provided with a second roller (21) in a rotating manner, the inner bottom surface of the first cylinder (22) is connected with one end of the compression spring (24), and the other end of the compression spring (24) is connected with the inner bottom surface of the second cylinder (23).

5. Volleyball post stringing device according to claim 2, wherein the inner arc of the arc plate (15) is provided with a rubber pad that increases friction.

6. A volleyball-post stringing device according to claim 1, wherein the first roller (11) and the second roller (21) rotate in the same direction.