Patent Application
20250041696
The present invention relates to an explosion-proof hitting ball and a training device including the same.
Hitting training device allows users to train their hitting strength, hitting posture, hitting accuracy, and responsiveness. Usually, the members used for hitting are filled with fillings to simulate the hitting training and to absorb the impact force to protect the user's hands. The very common filling is sponge, cotton, rubber chips, sand, foam material, or air.
However, when the cladding encapsulating the filling is broken, the filling will be spread on the ground, causing the environment to be messy and difficult to clean up. If the cladding breaks during the hitting practice, the filling can even burst and injure persons. If the filling is air, very loud noises will occur during the explosion of the cladding, which will scare persons, and the fragments of the cladding can cause injuries to persons when the cladding bursts.
The present invention is, therefore, arisen to obviate or at least mitigate the above-mentioned disadvantages.
The main object of the present invention is to provide an explosion-proof hitting ball and a training device including the same, which will not burst so that it can effectively avoid injuries and damages.
To achieve the above and other objects, an explosion-proof hitting ball is provided, wherein the explosion-proof hitting ball includes: a tubular member made of plastic material and including an outer wall; and a ball member made of explosion-proof material and including a tubular wall and a ball wall, the tubular wall and the ball wall being transverse and connected to each other to form a chamber, the tubular wall being disposed around the tubular member and integrally connected to the outer wall by melting-connection.
To achieve the above and other objects, a training device is provided, wherein the training device includes the explosion-proof hitting ball, and further includes: a base; and a connection rod assembly connected to the base and the explosion-proof hitting ball.
The present invention will become more obvious from the following description when taken in connection with the accompanying drawings, which show, for purpose of illustrations only, the preferred embodiment(s) in accordance with the present invention.
Please refer to
The tubular member 1 is made of plastic material and includes an outer wall 11. The ball member 2 is made of explosion-proof material, the ball member 2 includes a tubular wall 21 and a ball wall 22, the tubular wall 21 and the ball wall 22 are transverse and connected to each other to form a chamber 24, and the tubular wall 21 is disposed around the tubular member 1 and integrally connected to the outer wall 11 by melting-connection. Preferably, the ball member 2 is made of polymer, such as polyvinyl chloride (PVC) or polypropylene (PP), the ball member 2 and the tubular member 1 are made of different materials, and the tubular wall 21 and the outer wall 11 are made of different materials and integrally connected to each other by melting-connection so that they are strongly connected to each other.
Preferably, the tubular member 1 is harder than the ball member 2. As such, when the tubular member 1 is disposed around an object, the harder tubular member 1 is not easy to damage and provides a strong support for supporting the ball member 2.
The tubular member 1 has a wall thickness larger than a wall thickness of the tubular wall 21 so that the tubular member 1 is durable and not easy to break. In this embodiment, the sum of a wall thickness of the tubular member 1 and a wall thickness of the tubular wall 21 is defined as a first dimension, a wall thickness of the ball wall 22 is defined as a second dimension, and the first dimension is larger than the second dimension. For example, the ratio of the first dimension and the second dimension ranges from 1.1 to 2.0.
Preferably, the tubular member 1 is protrusive beyond the ball member 2. When the explosion-proof hitting ball is disposed around a rod body, the tubular member 1 will contact a stop element first. When the explosion-proof hitting ball rotates relative to the rod body, the friction will concentrate on the harder tubular member 1, which can effectively maintain the structural integrity of the ball member 2 and service life.
The explosion-proof hitting ball further includes a metal tube 3, and the tubular member 1 is disposed around the metal tube 3, wherein the metal tube 3 has properties of low friction and good durability so that the explosion-proof hitting ball can smoothly move along the rod body. When the explosion-proof hitting ball is disposed around a rod body having low friction for hitting training, the explosion-proof hitting ball can smoothly rotate about the rod body to eliminate the impact force. Since the tubular member 1 made of plastic material has a relatively large frictional resistance than the metal tube 3, the tubular member 1 can rotate with the metal tube 3.
The explosion-proof hitting ball further includes a valve member 25, and the valve member 25 is disposed on the ball member 2 and controllably in communication with the chamber 24 and an outside of the ball member 2. As such, the user can inflate or deflate the ball member 2 to obtain a required air pressure in the chamber 24 according to various requirements, which can control the hardness of the ball member 2.
The invention further provides a training device. The training device includes the explosion-proof hitting ball, a base 4 and a connection rod assembly 5. The connection rod assembly 5 is connected to the base 4 and the explosion-proof hitting ball.
The connection rod assembly 5 includes a main portion 51, a blocking portion 52, a plug 53 and a fixation assembly 55. The main portion 51 is preferably retractable and defines an axial direction 61 and a radial direction 62. The blocking portion 52 projects in the radial direction 62 on a side of the main portion 51 remote from the base 4, the explosion-proof hitting ball is disposed around the main portion 51 about the axial direction 61 and abutted against the blocking portion 52. In this embodiment, the blocking portion 52 is abutted against the tubular member 1, the plug 53 is positioned in an opening of the main portion 51 remote from the base 4, and the fixation assembly 55 is connected to the plug 53 and blocks the explosion-proof hitting ball in the axial direction 61 so that the explosion-proof hitting ball cannot disengage form the main portion 51 during hitting training.
The ball wall 22 of the explosion-proof hitting ball includes a receiving hole 23, the receiving hole 23 has a diametric dimension larger than an inner diametric dimension of the tubular wall 21, the plug 53 includes a threaded hole 54 disposed therethrough, the threaded hole 54 is in communication with an interior of the main portion 51 and the receiving hole 23, the fixation assembly 55 includes a screw 56 and a washer 57, the washer 57 is received within the receiving hole 23 and abutted against an end of the tubular wall 21, and the screw 56 is disposed through the washer 57 and screwed to the threaded hole 54. Preferably, a side surface of the screw 56 facing the washer 57 includes a plurality of toothed portions 561, and the plurality of toothed portions 561 urge the washer 57 to effectively avoid disengagement of the screw 56.
Although particular embodiments of the invention have been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the invention. Accordingly, the invention is not to be limited except as by the appended claims.
