61results about "Tennis" patented technology

The utility model discloses a portable badminton post which comprises a stand column, a plurality of containing grooves are formed in the outer side of the stand column, supporting rods are rotationally connected into the containing grooves, threaded rods are rotationally connected into the supporting rods, clamping rods are arranged on the outer sides of the threaded rods in a sleeved mode, clamping grooves are formed in the containing grooves, and the clamping rods are connected with the clamping grooves in a sleeved mode. The sides, close to the stand columns, of the multiple clamping rods extend into the corresponding clamping grooves, connecting rods are fixedly installed at the top ends of the stand columns, limiting bases are fixedly installed at the top ends of the connecting rods, sleeves are arranged on the outer sides of the limiting bases in a sleeving mode, two sliding blocks are slidably connected into the limiting bases, and springs are fixedly installed between the two sliding blocks. Pin rods are fixedly mounted on the sides, away from each other, of the two sliding blocks. According to the portable badminton post, the badminton post can be quickly folded and stored, the overall size is reduced, the carrying convenience is further improved, meanwhile, the multiple supporting rods can be used for supporting, the stability is high, and the portable badminton post can meet the use requirements of different scenes.

In a flat roll-up structure for rolling up net body flatly, at upper and lower end of net body, it is installed respectively with protruding object, meanwhile, at roll-up mechanism, it is installed with upper and lower positioning roller module to limit the movement scope of net body, therefore, when net body is to be expanded, net body, through the guidance of upper and lower positioning roller structure, can be withdrawn flatly; when protruding object used to roll up net body is limited for its movement scope by upper and lower positioning roller module, and is limited by the limiting part of upper and lower positioning roller module, the net body can then be rolled up flatly without generating up and down shift, which can avoid the generation of tying problem due to unbalanced receiving in net body.

A padded cover 20, for a tennis court net post (6 / 8, figure 1), configured to substantially surrounds the net post when in use. The padded cover comprises a sleeve wall 22 that, in use, extends substa

The invention relates to a volleyball antenna that integrates micro-cameras and a micro-computer with a touch screen, providing referees with the ability to view difficult and controversial phases in replay, having the goal of making accurate and correct decisions during the match.

Net post for depositing game balls, which has the particularity of having a housing for depositing game balls without them getting in the way or protruding so as not to affect the rules of the game. Said housing may well be integrated into the post itself or fixed on a removable way on the post, in case of been integrated it will have an upper opening provided with facing recesses in which there are retractable tabs and a platform that can be raised vertically by the action of the force of an elastic means placed under the platform; in case of been a housing fixed in a removably way on a post, it will have a basket provided with fastening means either by tapes or by magnetic means.

The utility model relates to the technical field of badminton equipment, and discloses a portable badminton net capable of being quickly installed, which comprises a first connecting plate, fixing plates are connected to the front side and the rear side of the top of the first connecting plate, a first adjusting plate is longitudinally and movably connected to the inner sides of the fixing plates, and a second adjusting plate is slidably connected to the top of the first adjusting plate. The top of the second adjusting plate is slidably connected with a third adjusting plate, and the outer sides of the second adjusting plate and the third adjusting plate are both in threaded connection with fixing bolts. According to the utility model, through mutual cooperation of the fixing plate, the first adjusting plate and the second adjusting plate, after the first adjusting plate supported by the fixing plate is unfolded, the second adjusting plate slides on the surface of the first adjusting plate for adjustment, then the third adjusting plate is moved upwards, and then the second adjusting plate and the third adjusting plate are fixed through the fixing bolts; and the badminton net body is limited and clamped in a sliding opening in a sliding manner by using a mounting plate and a supporting block, so that the badminton net body is quickly mounted on the unfolded third adjusting plate for use.

An example apparatus includes a covering that is opaque and straps to attach the covering to a tennis net. The straps are configured to attach the covering below a top tape of the tennis net. The apparatus is weighted so that, after attachment to the tennis net, a height of the tennis net is unchanged.