CN216081964U

CN216081964U - Impact resistance testing device of tennis net support for tennis

Info

Publication number: CN216081964U
Application number: CN202121561058.5U
Authority: CN
Inventors: 钱俊
Original assignee: Jiangsu Zhongzheng Testing Co ltd
Current assignee: Jiangsu Zhongzheng Testing Co ltd
Priority date: 2021-07-09
Filing date: 2021-07-09
Publication date: 2022-03-18
Anticipated expiration: 2031-07-09

Abstract

The utility model discloses a collision-resistant inspection device for a tennis net support for tennis, which comprises a bottom plate, wherein the upper end of the bottom plate is provided with an upright post, a cavity is formed in the upright post, the top of the upright post is provided with a motor, a power shaft of the motor is a threaded rod, the threaded rod extends into the cavity and is in threaded connection with an internal thread block, one side of the internal thread block is provided with a supporting rod, and the supporting rod is arranged on the inner wall of the upright post in a sliding manner through a sliding groove; the threaded rod is driven to rotate by the motor, so that the movable block on the internal thread block drives the inspection head to move up and down, inspection of different heights of the support is facilitated, and the operation is simple and convenient; the electric telescopic rod drives the inspection head on the connecting plate to move left and right, the support is conveniently inspected, and the inspection head on the connecting plate can be put into the U-shaped containing frame Chinese when not used, so that the inspection head is protected.

Description

Impact resistance testing device of tennis net support for tennis

Technical Field

The utility model belongs to the technical field of tennis, and particularly relates to a bump-resistant testing device for a tennis net support for tennis.

Background

Tennis was bred in france, born in the united kingdom, and the popularity and climax of its development in the united states; it originally originated in france in the 12-13 th century; in 1896, in the first modern Olympic Game held in Athens, a single hit and a double hit of tennis men were listed as official games, and later, since the International Olympic Commission and the International tennis Union have diverged in the problem of "amateur athletes", the tennis game of Olympic games that have been continuously performed for 7 times was cancelled; tennis was not listed as an Olympic project until the los Angeles Olympic Association in 1984; tennis was re-listed as a formal game item in the world Olympic Game in Hancheng in 1988.

Tennis is one of ball games; the effective tennis court is a rectangle, the length of the effective tennis court is 23.77 meters, the width of the single playing court is 8.23 meters, and the width of the double playing court is 10.97 meters; the net is arranged in the middle of the tennis net and is supported by the support, and the support needs certain impact resistance because tennis balls are high in speed and high in hitting force.

The impact-resistant inspection device of the existing net support cannot be used for inspecting the positions of different heights of the support, so that the using effect of the device is poor, the inspection is not comprehensive enough, the inspection head is exposed in the air when the device is not used, the inspection head is easy to damage due to misoperation or collision, and the service life of the device is greatly influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a bump-resistant testing device for a tennis net support for tennis, which aims to solve the problem of low testing range of the existing device.

In order to achieve the purpose, the utility model provides the following technical scheme: a collision-resistant inspection device for a tennis net support for tennis comprises a bottom plate, wherein rollers are arranged at the lower end of the bottom plate, the device is convenient to move, a stand column is arranged at the upper end of the bottom plate, the stand column is fixedly welded at the upper end of the bottom plate, a cavity is formed in the stand column, the cavity is arranged at the central position of the stand column, a motor is arranged at the top of the stand column, the motor is arranged at the upper end of the stand column, a power shaft of the motor is a threaded rod, the motor can drive the threaded rod to rotate in the forward direction and the reverse direction, the threaded rod stretches into the cavity and is in threaded connection with an internal thread block, the internal thread block can move up and down along the threaded rod, a support rod is arranged at one side of the internal thread block, the support rod is fixedly welded at one side of the internal thread block, the support rod is arranged at the inner wall of the stand column in a sliding manner through a sliding groove, and the other end of the support rod is limited in the sliding groove of the inner wall of the stand column, the stability that the internal thread piece reciprocated is guaranteed.

Preferably, the other end of the internal thread block is provided with a moving block, the moving block is fixedly welded to the other end of the internal thread block, and the moving block can stably slide up and down on the outer wall of the upright post.

Preferably, an empty groove is formed in the moving block, and the empty groove is formed in the center of the moving block.

Preferably, the inner wall of the empty groove is provided with an electric telescopic rod which is fixedly arranged on the inner wall of the empty groove.

Preferably, the electric telescopic rod extends out of the moving block and is connected with the connecting plate, and the connecting plate is fixedly welded on a power shaft of the electric telescopic rod, so that the connecting plate can be conveniently driven to move left and right stably.

Preferably, the outer side of the connecting plate is provided with a checking head, and the checking head is fixedly arranged on the outer side of the connecting plate.

Preferably, the upper end of the bottom plate is provided with a U-shaped containing frame, the U-shaped containing frame is fixedly welded at the upper end of the bottom plate and forms a rectangle with the upright posts in a surrounding mode, and the inspection head and the moving block are conveniently placed into the U-shaped containing frame.

Compared with the prior art, the utility model has the beneficial effects that: 1. the device can drive the threaded rod through the motor and rotate for the movable block on the internal thread piece drives the inspection head and reciprocates, conveniently inspects the co-altitude of support, and easy operation is convenient.

2. The device can move about through the inspection head on the electric telescopic handle drive connecting plate, conveniently inspects the support, can put into the U type when not using simultaneously the inspection head on the connecting plate and hold the frame china, protects it.

Drawings

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

FIG. 2 is a cross-sectional view of the present invention;

fig. 3 is a top cross-sectional view of the present invention.

In the figure: 1. a base plate; 21. a column; 22. a cavity; 23. a motor; 24. a threaded rod; 25. an internal thread block; 26. a strut; 27. a chute; 31. a moving block; 32. an empty groove; 33. an electric telescopic rod; 34. a connecting plate; 35. an inspection head; 4. u type holds frame.

Detailed Description

Referring to fig. 1-3, a device for inspecting impact resistance of a net support for tennis comprises a bottom plate 1, rollers are disposed at the lower end of the bottom plate 1 to facilitate movement of the device, an upright post 21 is disposed at the upper end of the bottom plate 1, the upright post 21 is fixedly welded at the upper end of the bottom plate 1, a cavity 22 is disposed in the upright post 21, the cavity 22 is disposed at the center of the upright post 21, a motor 23 is disposed at the top of the upright post 21, the motor 23 is mounted at the upper end of the upright post 21, a power shaft of the motor 23 is a threaded rod 24, the motor 23 can drive the threaded rod 24 to rotate forward and backward, the threaded rod 24 extends into the cavity 22 and is in threaded connection with an internal thread block 25, the internal thread block 25 can move up and down along the threaded rod 24, a support rod 26 is disposed at one side of the internal thread block 25, the support rod 26 is fixedly welded at one side of the internal thread block 25, the support rod 26 is slidably disposed at the inner wall of the upright post 21 through a chute 27, the other end of the strut 26 is limited in a sliding groove 27 on the inner wall of the upright post 21, and the up-and-down movement stability of the internal thread block 25 is ensured.

Referring to fig. 1 and 2, the other end of the internal thread block 25 is provided with a moving block 31, the moving block 31 is fixedly welded to the other end of the internal thread block 25, and the moving block 31 can stably slide up and down on the outer wall of the upright post 21.

Referring to fig. 1 to 3, a hollow groove 32 is formed in the moving block 31, and the hollow groove 32 is formed at a central position of the moving block 31.

Referring to fig. 1-3, an electric telescopic rod 33 is disposed on an inner wall of the empty slot 32, and the electric telescopic rod 33 is fixedly mounted on the inner wall of the empty slot 32.

Referring to fig. 1-3, the electric telescopic rod 33 extends out of the moving block 31 and is connected to the connecting plate 34, and the connecting plate 34 is fixedly welded to the power shaft of the electric telescopic rod 33, so as to conveniently drive the connecting plate 34 to move left and right stably.

Referring to fig. 1-3, the outer side of the connecting plate 34 is provided with a test head 35, and the test head 35 is fixedly mounted on the outer side of the connecting plate 34.

Referring to fig. 1-3, the U-shaped holding frame 4 is disposed at the upper end of the bottom plate 1, and the U-shaped holding frame 4 is fixedly welded to the upper end of the bottom plate 1 and forms a rectangle with the upright posts 21, so that the inspection head 35 and the moving block 31 can be conveniently placed therein, and the inspection head 35 can be effectively protected.

The working principle of the scheme is as follows: the device is moved to a proper position through a roller, a motor 23 is opened, the motor 23 drives a threaded rod 24 to rotate in the forward direction, an inner threaded block 25 moves upwards, a support rod 26 slides on the inner wall of a sliding groove 27, the upward movement stability of the inner threaded block 25 is ensured, meanwhile, a moving block 31 drives a detection head 35 on a connecting plate 34 to move upwards, the connecting plate 34 and the detection head 35 are separated from a U-shaped containing frame 4, an electric telescopic rod 33 is opened, the electric telescopic rod 33 drives the connecting plate 34 to move towards the right side until the detection head 35 is away from a bracket to a proper position, then the detection head 35 is opened, the detection head 35 performs impact detection on the bracket, the different heights of the bracket can be detected once through the mode, after the detection is completed, the motor 23 is opened, the motor 23 drives the threaded rod 24 to rotate in the reverse direction, the inner threaded block 25 moves downwards, and the support rod 26 slides on the inner wall of the sliding groove 27, guarantee the stability that interior screw thread piece 25 moved down, in inspection head 35 on the connecting plate 34 entered into the U type and holds frame 4, conveniently protect inspection head 35.

Claims

1. A device for testing the impact resistance of a net support for tennis, comprising a base plate (1), characterized in that: the upper end of the bottom plate (1) is provided with an upright post (21), a cavity (22) is arranged in the upright post (21), the top of the upright post (21) is provided with a motor (23), a power shaft of the motor (23) is a threaded rod (24), the threaded rod (24) extends into the cavity (22) and is in threaded connection with the inner threaded block (25), a supporting rod (26) is arranged on one side of the internal thread block (25), the supporting rod (26) is arranged on the inner wall of the upright post (21) in a sliding way through a sliding chute (27), the other end of the internal thread block (25) is provided with a moving block (31), the moving block (31) is internally provided with a hollow groove (32), an electric telescopic rod (33) is arranged on the inner wall of the empty groove (32), the electric telescopic rod (33) extends out of the moving block (31) and is connected with a connecting plate (34), and a checking head (35) is arranged on the outer side of the connecting plate (34).

2. A net support impact resistance test device for tennis as described in claim 1, wherein: the upper end of the bottom plate (1) is provided with a U-shaped containing frame (4).