CN219517751U - A tennis swing practice device - Google Patents

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

A tennis swing practice device

technical field

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

Background technique

Tennis is one of the ball games. The effective tennis court is a rectangle with a length of 23.77 meters, a width of 8.23 meters for singles and a width of 10.97 meters for doubles. There is a net in the middle, each side of the game occupies one side of the court, and the players hit the ball with tennis rackets;

As a beginner learning tennis, you first need to train the hitting posture to ensure a solid foundation. At present, the tennis serving practice rod is composed of a single rod body and a ball that can slide on the rod body. At the same time, the weight of the ball body is changed to suit different players People, but as the position of the handle that needs to be held tightly by the user, the diameter is uniform. As a practice device, it cannot be applied to different groups of people, and it is easy to cause the posture to be out of shape, or the situation of letting go. In view of the above problems, this case arises.

Utility model content

The purpose of the utility model is to provide a tennis swing practice device to solve the problem that the handle of the training device in the prior art has a uniform position and diameter, which cannot be applied to different groups of people as a practice device, which may easily cause posture aliasing or release of hands.

In order to achieve the above object, the utility model provides the following technical solutions: a tennis swing practice device, comprising: a row rod, a first chuck, a fixed rod, an extension rod, a second chuck, a fixed ring, and a fixed plate, the The row of rods, the first chuck and the fixed rod are fixedly connected in sequence, and the row of rods, the first chuck and the fixed rod are located on the same vertical axis, and the bottom end of the fixed rod is fixedly connected with an extension rod, so The diameter of the extension rod is smaller than the diameter of the fixed rod, forming a stepped structure. The annular outer wall of the extension rod is provided with threads, and the second chuck is sleeved on the annular outer wall of the extension rod and abuts against the bottom surface of the fixed rod. The fixing ring is screwed to the thread of the extension rod and abuts against the bottom surface of the second chuck. The bottom surface of the first chuck is provided with a first slot, and the top surface of the second chuck is provided with a first slot. Two slots, a number of the first slots form three sets of ring structures, a number of the second slots form three sets of ring structures, and are respectively located on the same vertical axis as the fixing rods, at least 8 pieces of the fixing rods The top ends of the plates are inserted into the first slots, and the bottom ends of at least eight fixed plates are inserted into the second slots to form a tubular structure, and the fixed plates are maintained in a vertical state.

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

Preferably, protrusions are symmetrically arranged on the annular outer wall of the fixing ring.

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

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

Compared with the prior art, the beneficial effect of the utility model is that the tennis swing practice device forms tubular structures of different diameters by inserting several fixing plates into slots of different diameters, forming rackets of different diameters. The handle can satisfy different user groups and improves the applicability of the device.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the explosion schematic diagram of the utility model;

Fig. 3 is a schematic diagram of the utility model looking up;

Fig. 4 is the front view of the utility model.

In the figure: 1. Arrow bar, 2. First chuck, 3. Fixing rod, 4. Extension rod, 5. Second chuck, 6. Fixing ring, 7. First slot, 8. Second slot , 9, fixed plate, 10, bump, 11, rubber sleeve.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 1-4, the utility model provides a technical scheme of a tennis swing practice device, and its detailed connection means is a well-known technology in the field. The following mainly introduces the working principle and process, and the specific work is as follows.

A tennis racket swing practice device, comprising: row rod 1, first chuck 2, fixed rod 3, extension rod 4, second chuck 5, fixed ring 6, and fixed plate 9, the row rod 1, the first A chuck 2 and a fixed rod 3 are fixedly connected in sequence, and the row rod 1, the first chuck 2 and the fixed rod 3 are located on the same vertical axis, and the bottom end of the fixed rod 3 is fixedly connected with an extension rod 4 , the diameter of the extension rod 4 is smaller than the diameter of the fixed rod 3, forming a stepped structure, the annular outer wall of the extension rod 4 is provided with threads, and the second chuck 5 is sleeved on the annular outer wall of the extension rod 4 and fixed The bottom surface of the rod 3 abuts, the fixing ring 6 is screwed to the thread of the extension rod 4, and abuts against the bottom surface of the second chuck 5, and 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 the first slots 7 form three groups of ring structures, and a plurality of the second slots 8 form three groups of ring structures, and Respectively located on the same vertical axis as the fixed rod 3, the top ends of at least 8 fixed plates 9 are inserted into the first slot 7, and the bottom ends of at least 8 fixed plates 9 are inserted into the second slot 8, a tubular structure is formed, and the fixed plate 9 is maintained in a vertical state. When the user’s palm is small, the top of the fixed plate 9 satisfying the number of slots with the minimum diameter can be plugged into the first slot 7, and then the second Two chucks 5 are inserted on the extension rod 4, and the bottom of the fixing plate 9 is inserted in the second slot 8 at the same time, then the fixing ring 6 is screwed on the extension rod 4, and tightened so that the second chuck The disc 5, the fixed ring 6 and the fixed rod 3 are tightly fitted, and the diameter of the position held by the user is relatively small at this time, and the user can hold the outside of the fixed plate 9 tightly. When the user's palm is large, the According to the needs of users, different numbers of fixing plates 9 are installed in slots of different diameters to form a cylindrical structure with a larger diameter composed of fixing plates 9 to suit different users and improve the applicability of the device , and at the same time avoid posture aliasing or loss of hands due to inability to hold the practice device firmly.

The position where the second chuck 5 abuts against the bottom surface of the fixed rod 3 is a rough plane, so as to avoid relative sliding between the second chuck 5 and the fixed rod 3 when the second chuck 5 is fixed by the fixed ring 6 , so that the fixed plate 9 in the vertical state is inclined, which affects the grip.

Protrusions 10 are symmetrically arranged on the annular outer wall of the fixing ring 6 to facilitate the installation and removal of the fixing ring 6 .

The slots of the three groups of ring structures respectively need 8, 10 and 12 fixing plates 9 to form three groups of ring structures with different diameters.

The outer wall of the tubular structure composed of the fixed plate 9 is sleeved with a rubber sleeve 11, which increases the friction between the palm and the fixed plate 9, and improves the grip feeling at the same time, making it softer and more comfortable.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (5)

1. A tennis swing practice device, characterized in that it comprises: bar row (1), the first chuck (2), fixed rod (3), extension rod (4), the second chuck (5), The fixed ring (6), and the fixed plate (9), the row rod (1), the first chuck (2) and the fixed rod (3) are fixedly connected in sequence, and the row rod (1), the first The chuck (2) and the fixed rod (3) are located on the same vertical axis, and the bottom end of the fixed rod (3) is fixedly connected with an extension rod (4), and the diameter of the extension rod (4) is smaller than that of the fixed rod (3). ) to form a stepped structure, the annular outer wall of the extension rod (4) is provided with threads, and the second chuck (5) is sleeved on the annular outer wall of the extension rod (4) and connected with the fixed rod (3) The bottom surface of the first chuck (5) is abutted against the bottom surface of the second chuck (5), and the bottom surface of the first chuck (2) is opened There is a first slot (7), and the top surface of the second chuck (5) is provided with a second slot (8), and several first slots (7) form three groups of ring structures, and some of the first slots (7) The second slots (8) form three groups of ring structures, and are respectively located on the same vertical axis as the fixed rods (3), and the tops of at least eight fixed plates (9) are plugged into the first slots ( In 7), the bottom ends of at least eight fixing plates (9) are plugged into the second slots (8) to form a tubular structure, and the fixing plates (9) are kept vertical. 2 . A tennis swing practice device according to claim 1 , characterized in that: the position where the second chuck ( 5 ) abuts against the bottom surface of the fixed rod ( 3 ) is a rough plane. 3 . 3. The tennis racket swing practice device according to claim 1, characterized in that: convex blocks (10) are symmetrically arranged on the annular outer wall of the fixing ring (6). 4. A tennis swing practice device according to claim 1, characterized in that: the slots of the three sets of ring structures respectively require 8, 10 and 12 fixing plates (9) to form three sets Tubular structures of different diameters. 5. A tennis racket swing practice device according to claim 1, characterized in that: a rubber sleeve (11) is sleeved on the outer wall of the tubular structure composed of the fixing plate (9).