CN219517751U

CN219517751U - Tennis swing training device

Info

Publication number: CN219517751U
Application number: CN202223307464.6U
Authority: CN
Inventors: 张佳; 孙爽; 刘德宝
Original assignee: Jilin Engineering Vocational College
Current assignee: Jilin Engineering Vocational College
Priority date: 2022-12-10
Filing date: 2022-12-10
Publication date: 2023-08-15
Anticipated expiration: 2032-12-10

Abstract

The utility model relates to the technical field of sports apparatuses, in particular to a tennis swing training device, which comprises: arrange pole, first chuck, dead lever, extension pole, second chuck, solid fixed ring and fixed plate, arrange pole, first chuck and dead lever fixed connection in proper order, the bottom fixedly connected with extension pole of dead lever, the seting up of extension pole annular outer wall is threaded, the second chuck cup joints on the annular outer wall of extension pole, gu fixed ring spiro union in the screw thread department of extension pole, a plurality of slots have been seted up to first chuck and second chuck opposite face mirror image, 8 at least the both ends of fixed plate are pegged graft respectively in the slot of first chuck bottom surface and second chuck top surface same diameter in order to the training device clap handle position diameter is unified among the solution prior art, and as exercise device can't be applicable to different crowds, causes the appearance of walking of gesture easily, perhaps takes place the problem of taking off the hand.

Description

Tennis swing training device

Technical Field

The utility model relates to the technical field of sports apparatuses, in particular to a tennis swing training device.

Background

Tennis, one of the ball sports. The effective tennis sport field is a rectangle with the length of 23.77 meters, the single playing field width of 8.23 meters and the double playing field width of 10.97 meters. The middle interval is provided with a net, and the two players respectively occupy one of the courts, and the player uses the tennis racket to hit the ball;

as a beginner learns tennis, firstly, the beginner needs to train the batting gesture to ensure a solid foundation, the current tennis serving exercise bar adopts a single bar body and a ball body capable of sliding on the bar body, and meanwhile, the weight of the ball body is changed to be suitable for different crowds, but as the racket handle position which needs to be gripped by a user, the diameter is uniform, the beginner cannot be suitable for different crowds, the appearance of gesture is easy to cause, or the situation of hand dislocation occurs, and the scheme is generated aiming at the problems.

Disclosure of Invention

The utility model aims to provide a tennis racket swinging exercise device, which aims to solve the problems that in the prior art, the positions and diameters of racket handles of exercise devices are uniform, the tennis racket swinging exercise device cannot be suitable for different crowds, and the appearance of postures is easy to cause or the hands are easy to lose.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a tennis swing practice device comprising: arrange pole, first chuck, dead lever, extension pole, second chuck, solid fixed ring and fixed plate, arrange pole, first chuck and dead lever fixed connection in proper order, just arrange pole, first chuck and dead lever and be located same vertical axis, the bottom fixedly connected with extension pole of dead lever, the extension pole diameter is less than the diameter of dead lever, forms step form structure, extension pole annular outer wall is equipped with the screw thread, the second chuck cup joints on the annular outer wall of extension pole and with the bottom surface looks butt of dead lever, gu fixed ring spiro union in the screw thread department of extension pole to with the bottom surface looks butt of second chuck, first slot has been seted up to the bottom surface of first chuck, the second slot has been seted up to the top surface of second chuck, a plurality of first slot constitutes three sets of ring structures, a plurality of second slot constitutes three sets of ring structures, and is located same vertical axis with the dead lever respectively, 8 piece at least the top of fixed plate peg graft in first slot, 8 pieces at least the bottom of fixed plate looks fixed plate, the bottom of second chuck just forms the fixed plate and keeps the vertical state.

Preferably, the second chuck is in a rough plane at a position where the second chuck is abutted against the bottom surface of the fixing rod.

Preferably, the annular outer wall of the fixing ring is symmetrically provided with convex blocks.

Preferably, the slots of the three sets of circular ring structures respectively require 8, 10 and 12 fixing plates to form three sets of tubular structures with different diameters.

Preferably, the outer wall of the tubular structure formed by the fixing plates is sleeved with a rubber sleeve.

Compared with the prior art, the utility model has the beneficial effects that: this tennis swing exercise device through peg graft a plurality of fixed plates in the slot of different diameters to constitute the tubular structure of different diameters, form the handle of different diameters, can satisfy different user groups, improved the suitability of device.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an exploded view of the present utility model;

FIG. 3 is a schematic bottom view of the present utility model;

fig. 4 is a front view of the present utility model.

In the figure: 1. the clamping device comprises a row rod, 2, a first chuck, 3, a fixed rod, 4, an extension rod, 5, a second chuck, 6, a fixed ring, 7, a first slot, 8, a second slot, 9, a fixed plate, 10, a bump, 11 and a rubber sleeve.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution of a tennis swing training device, and a detailed connection means thereof, which is known in the art, mainly introduces the working principle and the procedure as follows.

A tennis swing practice device comprising: the row rod 1, the first chuck 2, the fixed rod 3, the extension rod 4, the second chuck 5, the fixed ring 6 and the fixed plate 9 are fixedly connected in sequence, the row rod 1, the first chuck 2 and the fixed rod 3 are positioned on the same vertical axis, the bottom end of the fixed rod 3 is fixedly connected with the extension rod 4, the diameter of the extension rod 4 is smaller than that of the fixed rod 3, a stepped structure is formed, the annular outer wall of the extension rod 4 is provided with threads, the second chuck 5 is sleeved on the annular outer wall of the extension rod 4 and is abutted against the bottom surface of the fixed rod 3, the fixed ring 6 is in threaded connection with the thread of the extension rod 4 and is abutted against the bottom surface of the second chuck 5, the bottom surface of the first chuck 2 is provided with a first slot 7, the top surface of the second chuck 5 is provided with a second slot 8, a plurality of first slots 7 form a three-group annular structure, the second slots 8 form three groups of circular ring structures, and are respectively positioned on the same vertical axis with the fixing rod 3, at least 8 pieces of top ends of the fixing plates 9 are inserted into the first slots 7, at least 8 pieces of bottom ends of the fixing plates 9 are inserted into the second slots 8 to form a tubular structure, the fixing plates 9 are kept in a vertical state, when the palm of a user is smaller, the top parts of the fixing plates 9 meeting the minimum diameter of slots can be inserted into the first slots 7, then the second chucks 5 are inserted onto the extension rods 4, simultaneously, the bottoms of the fixing plates 9 are inserted into the second slots 8, then the fixing rings 6 are screwed onto the extension rods 4, and are screwed, so that the second chucks 5, the fixing rings 6 and the fixing rods 3 are tightly attached, at the moment, the diameters of positions held by the user are smaller, and the user can tightly hold the outer sides of the fixing plates 9, when the palm of the user is bigger, can install the fixed plate 9 that quantity is different in the slot of different diameters according to user's needs, form the bigger tubular structure of diameter that comprises fixed plate 9 to be suitable for different users, improved the suitability of the device, avoid simultaneously because can't grip the potential appearance that the exercise device caused, perhaps take place the condition of taking off the hand.

The second chuck 5 and the position of dead lever 3 bottom surface looks butt, and both are the rough plane, avoid producing the relative slip between second chuck 5 and the dead lever 3 when second chuck 5 is fixed by solid fixed ring 6 to make vertical state's fixed plate 9 take place to incline, influence the sense of holding.

The annular outer wall of the fixed ring 6 is symmetrically provided with the convex blocks 10, so that the fixed ring 6 can be conveniently installed and dismounted.

The slots of the three sets of circular structures respectively require 8, 10 and 12 fixing plates 9 to form three sets of circular structures with different diameters.

The rubber sleeve 11 is sleeved on the outer wall of the tubular structure formed by the fixing plates 9, so that the friction between the palm and the fixing plates 9 is increased, and meanwhile, the holding feeling is improved, so that the palm is softer and more comfortable.

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

Claims

1. A tennis swing practice device, comprising: the utility model comprises a row rod (1), a first chuck (2), a fixed rod (3), an extension rod (4), a second chuck (5), a fixed ring (6) and a fixed plate (9), wherein the row rod (1), the first chuck (2) and the fixed rod (3) are fixedly connected in sequence, the row rod (1), the first chuck (2) and the fixed rod (3) are positioned on the same vertical axis, the bottom end of the fixed rod (3) is fixedly connected with the extension rod (4), the diameter of the extension rod (4) is smaller than the diameter of the fixed rod (3) to form a stepped structure, the annular outer wall of the extension rod (4) is provided with threads, the second chuck (5) is sleeved on the annular outer wall of the extension rod (4) and is abutted to the bottom surface of the fixed rod (3), the fixed ring (6) is in threaded position of the extension rod (4) and abutted to the bottom surface of the second chuck (5), a first slot (7) is formed in the bottom surface of the first chuck (2), the second chuck (5) is fixedly connected with the extension rod (4), the second chuck (8) is provided with a plurality of slots (8) which are formed in the same circular structure, a plurality of groups of slots (8) are respectively positioned on the first slot (8) and the second slot (8) are respectively positioned on the first slot (8) and the second slot (3), at least 8 bottom ends of the fixing plates (9) are inserted into the second slots (8) to form a tubular structure, and the fixing plates (9) are kept in a vertical state.

2. A tennis swing practice device according to claim 1 wherein: the second chuck (5) is in a position propped against the bottom surface of the fixed rod (3), and both the second chuck and the fixed rod are rough planes.

3. A tennis swing practice device according to claim 1 wherein: the annular outer wall of the fixed ring (6) is symmetrically provided with convex blocks (10).

4. A tennis swing practice device according to claim 1 wherein: the slots of the three groups of circular ring structures respectively need 8, 10 and 12 fixing plates (9) to form three groups of tubular structures with different diameters.

5. A tennis swing practice device according to claim 1 wherein: the outer wall of the tubular structure formed by the fixing plates (9) is sleeved with a rubber sleeve (11).