Volleyball training frame flexible to adjust and convenient to use

Abstract

The utility model relates to the field of volleyball training frame devices, and discloses a volleyball training frame which is flexible to adjust and convenient to use, and comprises a supporting device and an adjusting device, the adjusting device is arranged at the top end of the supporting device, the supporting device comprises a cross rod, and mounting plates are fixedly connected to the positions, close to the front, of the two sides of the cross rod respectively. A fixing sleeve is fixedly connected to the front side of the top end of the cross rod, a first fixing bolt is in threaded connection with the upper portion of the rear end of the fixing sleeve, a sliding rod is slidably connected to the inner side wall of the fixing sleeve, a weight box is fixedly connected to the rear side of the top end of the cross rod, and pulleys are fixedly connected to the two sides of the rear end of the weight box respectively. According to the volleyball training frame, the supporting device is arranged, so that the overall height of the volleyball training frame is effectively adjusted, meanwhile, the adjusting device is utilized, the whole volleyball training frame is more convenient to store and carry, and the volleyball training frame is flexible to adjust and convenient to use.

Description

Technical Field

[0001] The utility model relates to the field of volleyball training frame devices, in particular to a volleyball training frame which is flexible to adjust and convenient to use. Background Art

[0002] Volleyball is one of the ball sports. The court is rectangular with a high net in the middle. Each team occupies one side of the court. Players use their hands to hit the ball over the net. The ball used in volleyball is made of sheepskin or artificial leather and rubber. It is similar in size to a football. In the promotion of sports, volleyball has been successfully included as one of the ball games in physical education examinations. With the progress of society, examination testing equipment will gradually be developed.

[0003] Although the prior art uses a training rack to train volleyball, the products on the market are electronic products, which are expensive, complicated to operate, and require power supply and professional personnel to operate, making it unrealistic for schools to use them in daily training. Therefore, technical personnel in this field provide a volleyball training rack that is flexible in adjustment and easy to use to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a volleyball training rack that is flexible in adjustment and easy to use. It provides a volleyball training rack that is flexible in adjustment and easy to use and can effectively adjust the overall height of the device by setting a supporting device. At the same time, the adjusting device is used to make the device as a whole easier to store and carry.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a volleyball training stand that is flexible in adjustment and easy to use, comprising a supporting device and an adjusting device, wherein the adjusting device is arranged at the top of the supporting device, and the supporting device comprises a cross bar, and mounting plates are respectively fixedly connected to the front positions of both sides of the cross bar, a fixing sleeve is fixedly connected to the front side of the top of the cross bar, a first fixing bolt is threadedly connected to the upper position of the rear end of the fixing sleeve, a sliding rod is slidably connected to the inner side wall of the fixing sleeve, a counterweight box is fixedly connected to the rear side of the top of the cross bar, and pulleys are respectively fixedly connected to the two sides of the rear end of the counterweight box;

[0006] Through the above technical scheme, by setting up a supporting device and setting a sliding rod in the fixed sleeve, the height of the limit rod can be effectively adjusted by using the first fixing bolt, which effectively meets the training needs of students at different heights. At the same time, a counterweight box and a mounting plate are set at the rear end of the cross bar, and the device is fixed and installed in different ways, which effectively improves the overall stability of the device during use.

[0007] Further, the adjusting device includes a fixing plate, the two ends of the fixing plate are respectively fixedly connected with a second rotating disk, the side walls of the two second rotating disks are respectively provided with two limiting holes, the bottom ends of the two second rotating disks are respectively provided with a sliding groove, the middle parts of the two second rotating disks are respectively rotatably connected with the first rotating disk, the front ends of the two first rotating disks are respectively slidably connected with the second fixing bolts, the two first rotating disks are respectively fixedly connected with an adjusting sleeve on the side away from the fixing plate, the top ends of the two adjusting sleeves are respectively threadedly connected with a third fixing bolt, the inner side walls of the two adjusting sleeves are respectively slidably connected with a limiting rod, and the middle part of the bottom end of the fixing plate is fixedly connected with the top end of the sliding rod;

[0008] Through the above technical solution, by setting up the adjustment device, using the two turntables at both ends of the fixed plate, the limit rod is retracted and extended by a rotation and fixation method, thereby achieving the effect of saving space and making the device as a whole easy to carry.

[0009] Furthermore, the tops of the two mounting plates are respectively provided with mounting holes;

[0010] Through the above technical solution, the entire device can be effectively fixed and installed.

[0011] Furthermore, the first fixing bolt passes through the fixing sleeve and contacts the side wall of the sliding rod;

[0012] Through the above technical solution, the height of the adjusting device can be effectively adjusted.

[0013] Furthermore, the two second fixing bolts are respectively matched with the four limiting holes;

[0014] Through the above technical solution, the stability of the limit rod when it is deployed is effectively maintained.

[0015] Furthermore, the two third fixing bolts respectively penetrate the adjusting sleeve and contact the side wall of the limiting rod;

[0016] Through the above technical solution, the length of the limiting rod can be effectively adjusted.

[0017] Furthermore, a counterweight block is arranged inside the counterweight box;

[0018] Through the above technical solution, the overall stability of the device is effectively improved to avoid tipping over during use.

[0019] Furthermore, the two adjusting sleeves and the two sliding grooves are adapted to each other;

[0020] Through the above technical solution, the limiting rod can be effectively folded and stored.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by setting a supporting device and arranging a sliding rod in a fixed sleeve, the height of the limit rod can be effectively adjusted by using a first fixing bolt, which effectively meets the training needs of students at different heights. At the same time, a counterweight box and a mounting plate are arranged at the rear end of the cross bar, and the device is fixed and installed in different ways, which effectively improves the overall stability of the device when in use.

[0023] 2. In the utility model, by setting an adjustment device and utilizing two turntables at both ends of the fixed plate, the limit rod is retracted and extended by a rotation and fixation method, thereby achieving a space-saving effect and making the device as a whole easy to carry.

[0024] 3. In the utility model, the entire device is unfolded into a straight line with an overall length of three meters. Four devices can form a three-by-three square test site required for the physical education test in the high school entrance examination. The length of the limit rod can be adjusted by sliding adjustment between the limit rod and the adjustment sleeve, which is suitable for daily training and testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional diagram of a volleyball training stand that is flexible to adjust and easy to use proposed by the utility model;

[0026] Figure 2 A three-dimensional diagram from another perspective of a volleyball training stand that is flexible to adjust and easy to use proposed by the utility model;

[0027] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0028] Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0029] Legend:

[0030] 1. Support device; 101. Mounting plate; 102. Fixed sleeve; 103. Slide rod; 104. Counterweight box; 105. Cross bar; 106. Mounting hole; 107. First fixing bolt; 108. Pulley; 2. Adjustment device; 201. Limit rod; 202. Fixed plate; 203. First turntable; 204. Second fixing bolt; 205. Third fixing bolt; 206. Adjustment sleeve; 207. Limit hole; 208. Second turntable; 209. Slide groove. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1-4 The utility model provides an embodiment: a volleyball training stand that is flexible in adjustment and easy to use, including a support device 1 and an adjustment device 2, the adjustment device 2 is arranged at the top of the support device 1, the support device 1 includes a cross bar 105, the two sides of the cross bar 105 are respectively fixedly connected with mounting plates 101 at the front positions, the top of the cross bar 105 is fixedly connected with a fixing sleeve 102 at the front side, the rear end of the fixing sleeve 102 is threadedly connected with a first fixing bolt 107 at the upper position, the inner side wall of the fixing sleeve 102 is slidably connected with a sliding rod 103, and the cross bar The top end of 105 is fixedly connected to a counterweight box 104 at the rear side, and pulleys 108 are fixedly connected to both sides of the rear end of the counterweight box 104. By setting the supporting device 1, a sliding rod 103 is set in the fixed sleeve 102, and the height of the limit rod 201 can be effectively adjusted by using the first fixing bolt 107, which effectively meets the training needs of students at different heights. At the same time, a counterweight box 104 and a mounting plate 101 are set at the rear end of the cross bar 105, and the device is fixedly installed in different ways, which effectively improves the stability of the overall device when in use.

[0033] The adjusting device 2 includes a fixing plate 202, and second rotating disks 208 are fixedly connected at both ends of the fixing plate 202, and two limiting holes 207 are respectively provided on the side walls of the two second rotating disks 208, and sliding grooves 209 are respectively provided at the bottom ends of the two second rotating disks 208. The middle parts of the two second rotating disks 208 are respectively rotatably connected with the first rotating disks 203, and the front ends of the two first rotating disks 203 are respectively slidably connected with the second fixing bolts 204, and the two first rotating disks 203 are respectively fixedly connected with the adjusting sleeves 206 on the side away from the fixing plate 202, and the top ends of the two adjusting sleeves 206 are respectively threadedly connected with the third fixing bolts 205, and the inner side walls of the two adjusting sleeves 206 are respectively slidably connected with the limiting rod 201, and the middle part of the bottom end of the fixing plate 202 is fixedly connected to the top end of the sliding rod 103. By setting the adjusting device 2, the two rotating disks at both ends of the fixing plate 202 are utilized, and the limiting rod 201 is retracted and released by a rotating and fixing method, thereby achieving a space saving effect, making the device as a whole easy to carry.

[0034] The two mounting plates 101 are respectively provided with mounting holes 106 at the top, the first fixing bolt 107 passes through the fixing sleeve 102 and contacts the side wall of the sliding rod 103, the two second fixing bolts 204 are respectively matched with the four limiting holes 207, the two third fixing bolts 205 respectively pass through the adjusting sleeve 206 and contact the side wall of the limiting rod 201, a counterweight block is arranged inside the counterweight box 104, the two adjusting sleeves 206 are matched with the two sliding grooves 209, the whole device is fully unfolded into a straight line shape, and the whole length is three meters, the four devices can form a three by three square test site required for the physical education of the high school entrance examination, and the length of the limiting rod 201 can be adjusted by sliding adjustment between the limiting rod 201 and the adjusting sleeve 206, which is suitable for daily training and testing.

[0035] Working principle: by setting the supporting device 1, a sliding rod 103 is set in the fixing sleeve 102, and the height of the limit rod 201 can be effectively adjusted by using the first fixing bolt 107, which effectively meets the training requirements of students at different heights. At the same time, a counterweight box 104 and a mounting plate 101 are set at the rear end of the cross bar 105, and the device is fixed and installed in different ways, which effectively improves the stability of the entire device during use. By setting the adjusting device 2, two turntables at both ends of the fixing plate 202 are used to realize the retraction and extension of the limit rod 201 by a rotation and fixing method, thereby achieving the effect of saving space and making the entire device easy to carry. The entire device is fully unfolded into a straight line with an overall length of three meters. Four devices can form a three-by-three square test site required by the physical education of the high school entrance examination, and the length of the limit rod 201 can be adjusted by sliding adjustment between the limit rod 201 and the adjusting sleeve 206, which is suitable for daily training and testing.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A volleyball training stand that is flexible in adjustment and convenient to use, comprising a supporting device (1) and an adjusting device (2), wherein the adjusting device (2) is arranged on the top of the supporting device (1), and is characterized in that: The support device (1) comprises a cross bar (105), both sides of the cross bar (105) are fixedly connected to mounting plates (101) at the front positions, the top of the cross bar (105) is fixedly connected to a fixing sleeve (102) at the front side, the rear end of the fixing sleeve (102) is threadedly connected to a first fixing bolt (107) at the upper position, the inner wall of the fixing sleeve (102) is slidably connected to a sliding rod (103), the top of the cross bar (105) is fixedly connected to a counterweight box (104) at the rear side, and pulleys (108) are fixedly connected to both sides of the rear end of the counterweight box (104).

2. A volleyball training stand that is flexible to adjust and easy to use according to claim 1, characterized in that: The adjusting device (2) comprises a fixing plate (202), the two ends of the fixing plate (202) are respectively fixedly connected with second rotating disks (208), the side walls of the two second rotating disks (208) are respectively provided with two limiting holes (207), the bottom ends of the two second rotating disks (208) are respectively provided with sliding grooves (209), the middle parts of the two second rotating disks (208) are respectively rotatably connected with the first rotating disks (203), the front ends of the two first rotating disks (203) are respectively slidably connected with second fixing bolts (204), the sides of the two first rotating disks (203) away from the fixing plate (202) are respectively fixedly connected with adjusting sleeves (206), the top ends of the two adjusting sleeves (206) are respectively threadedly connected with third fixing bolts (205), the inner side walls of the two adjusting sleeves (206) are respectively slidably connected with limiting rods (201), and the middle part of the bottom end of the fixing plate (202) is fixedly connected with the top end of the sliding rod (103).

3. The volleyball training stand with flexible adjustment and convenient use according to claim 1, characterized in that: The top ends of the two mounting plates (101) are respectively provided with mounting holes (106).

4. The volleyball training stand with flexible adjustment and convenient use according to claim 1, characterized in that: The first fixing bolt (107) passes through the fixing sleeve (102) and contacts the side wall of the sliding rod (103).

5. The volleyball training stand with flexible adjustment and convenient use according to claim 2, characterized in that: The two second fixing bolts (204) are respectively matched with the four limiting holes (207).

6. The volleyball training stand with flexible adjustment and convenient use according to claim 2, characterized in that: The two third fixing bolts (205) respectively penetrate the adjustment sleeve (206) and contact the side wall of the limiting rod (201).

7. The volleyball training stand with flexible adjustment and convenient use according to claim 1, characterized in that: The counterweight box (104) is provided with a counterweight block inside.

8. The volleyball training stand with flexible adjustment and convenient use according to claim 2, characterized in that: The two adjusting sleeves (206) and the two sliding grooves (209) are adapted to each other.

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