Ball body and ball massager with same

Abstract

The utility model belongs to the technical field of fitness equipment, and particularly discloses a ball body and a ball massager with the ball body. The ball body comprises a shell and an axis cylinder. The shell is of a hollow structure and is made of stainless steel, the axis cylinder is of a hollow structure, and the two ends of the axis cylinder are connected to the two faces of the shell in a penetrating mode respectively; wherein a liquid cavity is formed between the shell and the axis cylinder, and liquid is arranged in the liquid cavity. The ball massager comprises a handle which is provided with a ball rotating mounting shaft, and the ball rotating mounting shaft is sleeved with the axis barrel of the ball. The ball body problem of the ball can be adjusted, and the temperature of the ball body can be kept for a long time by arranging the liquid. And the temperature can be adjusted more conveniently by changing the temperature of the liquid.

Description

Technical Field

[0001] The utility model belongs to the technical field of fitness equipment, in particular to a ball body and a ball massager with the ball body. Background Art

[0002] At present, fitness massage balls are popular among the public. Long-term exercise is good for health. The tentacles on the surface of the ball massage your skin, stimulate nerve endings, promote blood circulation, relax tense nerves, enhance body flexibility, improve balance, consume excess fat, and shape a charming figure. Enjoy the unique fun.

[0003] However, most existing massage balls are made of polymer materials, which makes it difficult to heat the ball body. Some other ball bodies are made of metal, and although the ball body can be heated by a device, it is difficult to keep the ball body warm or cold for a long time due to the poor heat storage capacity of metal. Utility Model Content

[0004] In order to solve the above problems, the utility model adopts the following technical solutions:

[0005] The ball body is used to be installed on the ball massager, including

[0006] The shell is a hollow structure, and the shell is made of stainless steel.

[0007] The shaft cylinder is a through-hole structure, with both ends respectively penetrating and connected to the two sides of the shell;

[0008] Wherein, a liquid cavity is formed between the shell and the shaft core cylinder, and liquid is arranged in the liquid cavity.

[0009] In some embodiments, an inner convex snap ring is provided inside the shaft cylinder.

[0010] In some embodiments, the shell is a spherical structure and is provided with a first mounting opening and a second mounting opening, and the edges at both ends of the shaft cylinder are respectively connected to the first mounting opening and the second mounting opening.

[0011] In some embodiments, a line connecting the centers of the first mounting opening and the second mounting opening passes through the center of the sphere of the shell.

[0012] In some embodiments, the first mounting opening and the second mounting opening are circular; the first mounting opening and the second mounting opening are respectively connected to the outer sides of the edges at both ends of the shaft cylinder.

[0013] In some embodiments, the liquid is water.

[0014] Roller massager, including

[0015] Handle with ball-mounted shaft,

[0016] The axial cylinder of the ball bearing body described in any one of the above is sleeved on the spherical body rotation installation shaft.

[0017] In some embodiments, a limiting convex portion is provided at the end of the spherical rotating installation shaft, and the limiting convex portion is provided after one end of the spherical rotating installation shaft passes through the central through cavity of the shaft core cylinder.

[0018] In some embodiments, the limiting protrusion is detachably connected to the spherical rotating mounting shaft.

[0019] The beneficial effects of the utility model are:

[0020] The ball bearing sphere can be adjusted, and the temperature of the sphere can be kept for a long time by setting the liquid. By changing the temperature of the liquid, the temperature can be adjusted more conveniently, such as achieving a warm or low temperature state. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of a ball massager;

[0022] Figure 2 It is a schematic diagram of the ball spherical structure;

[0023] Figure 3 It is a schematic diagram of the cross-sectional structure of the ball body;

[0024] Figure 4 This is a diagram of the water injection port of the ball bearing.

[0025] In the figure:

[0026] 100 handle, 110 ball rotating installation shaft, 120 limiting convex part, 200 ball sphere, 210 axis cylinder, 220 inner convex clamping ring, 230 liquid cavity, 231 water injection port. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with the accompanying drawings:

[0028] Ball bearings, such as Figures 2-3 As shown in

[0029] The shell is a hollow structure, and the shell is made of stainless steel.

[0030] The shaft cylinder 210 is a through structure, and its two ends penetrate and connect to the two sides of the shell respectively;

[0031] A liquid cavity 230 is formed between the shell and the shaft cylinder 210, and liquid is arranged in the liquid cavity. Although some existing spheres are hollow inside, they are not provided with liquid, so it is difficult to maintain the temperature of the ball for a long time, because the specific heat capacity of most liquids is much greater than that of air. In particular, water has a specific heat of 4.2×10^3 (joules / kg·℃), which can be considered as the substance with the largest specific heat on earth.

[0032] Moreover, the specific heat capacity of metal is also small, and it is difficult to maintain a stable temperature for a long time. For example, the thermal conductivity of metal is good, and the temperature will change rapidly, and it is not possible to maintain a warm or low temperature state within a certain range. Of course, the maintenance of the warm or low temperature state mentioned in this article does not require the temperature to be maintained within this range moderately, but requires that it can be maintained for a longer time. For example, when a 35°C ball is required, the temperature can be maintained within the range of 30-35°C in about 5 minutes by pouring liquid inside, and if no liquid is poured, it may drop below 30°C in about 1 minute. The electric heating structure is more complicated, and it is necessary to energize the heating resistor wire. The product structure is complicated, and the reliability of the product is also reduced. At the same time, it is difficult for the product to achieve refrigeration operation, and it is not convenient to place it in water or a refrigerator to cool it down.

[0033] The temperature of the sphere can be adjusted by placing liquid in the liquid cavity. For example, hot water can increase the temperature of the sphere, and ice water can also reduce the temperature of the sphere. Since the specific heat capacity of water is much greater than that of metal, the shell can be kept as warm or cold as possible for a long time. However, precise temperature control is not required, and it is only for improving the comfort of use. When in use, the sphere can be directly heated or cooled, so that the temperature of the water changes, which can extend the time the temperature is maintained. As for how to adjust the temperature of the ball bearing sphere, an ice bath or a hot bath can be used directly. For example, the ball bearing sphere is placed in hot water. At this time, the heat is transferred to the liquid inside through the shell, and the liquid absorbs the heat and stores it. At this time, the sphere can be used immediately. At the same time, the ball bearing sphere can also be placed in a refrigerator. At this time, the liquid in the ball bearing cools down. Of course, this type of insulation can only last for a certain period of time.

[0034] An inner convex snap ring 220 is provided inside the shaft cylinder 210, and the inner convex snap ring 220 protrudes from the inner wall of the shaft cylinder 210. The inner convex snap ring 220 not only increases the structural strength of the shaft cylinder 210, but also thickens the side wall of the shaft cylinder 210 to increase the wear resistance between the shaft cylinder 210 and the ball shaft body, and at the same time, the middle part of the ball shaft body can be set as a concave structure, and the inner convex snap ring 220 is set at the position of the concave structure, which also plays a limiting role to a certain extent.

[0035] like Figure 3As shown in the figure, the shell is a spherical structure, and has a first mounting port and a second mounting port. The edges of the two ends of the shaft cylinder 210 are connected to the first mounting port and the second mounting port respectively. During production, a central control sphere with two mounting ports can be produced first, and then a centrally connected cylinder can be produced. Then the shaft cylinder 210 is passed through the two mounting ports, and the two ends of the cylinder are connected to the first mounting port and the second mounting port to form a Figure 2 Status shown in .

[0036] In order to ensure that the cylinder is consistent with the rotation axis of the spherical shell after installation, the center line of the first installation opening and the second installation opening passes through the spherical center of the shell.

[0037] In order to make the rolling ball rotate better by the shaft, the shaft cylinder 210 is generally set to a cylindrical structure, so the first installation opening and the second installation opening are also set to be circular; the first installation opening and the second installation opening are respectively connected to the outer side of the edge openings at both ends of the shaft cylinder 210, so that the circular first installation opening can be better connected to the outer wall (or the outer side of the edge opening) of the shaft cylinder 210. When the outer wall of the shaft cylinder 210 is connected to the first installation opening and the second installation opening, the sealing of the connection part can be ensured, and the sealing of the liquid cavity 230 can be ensured at the same time (the water filling port is not considered for the time being), so that the cylinder body and the shell are sealed.

[0038] The liquid is water, and in most cases the water in the rolling ball is always retained without adding or removing, and because the water is filtered and treated, the water can remain clean for a long time. Of course, in certain cases, the shell is provided with a water inlet 231, through which the water in the liquid cavity can be drained, filled and discharged. The water inlet is generally arranged at a position of the shell close to the first mounting port or the second mounting port. As shown in the figure, the water inlet 231 is located at a position of the ball close to the port of the axis cylinder 210, so as to avoid discomfort caused by the water inlet 231 to the massage when the ball is rolling for massage. For example Figure 4 As shown in the figure, the water injection port 231 can be a rubber plug arranged on the outer shell of the metal sphere. The rubber plug can be set to a detachable form (the existing technology can be directly used), and can also be set by gluing. After being fixed and adhered by glue, liquid can be extracted or injected by syringe puncture (this form can better maintain the flatness of the outer surface of the sphere). When a non-detachable rubber plug is used, a rubber with better sealing elasticity can be selected. When the liquid inside the sphere is extracted, a certain negative pressure can be maintained inside the sphere. Of course, there are other ways, such as by setting two water injection ports 231, when injecting or extracting water, a needle tube is inserted through the other water injection port 231 to better balance the internal pressure of the sphere.

[0039] Roller massagers (massage roller devices), including

[0040] The handle 100 has a ball rotation mounting shaft 110 for mounting the rolling ball 200 and ensuring the rotation of the ball 200. The specific form of the handle 100 is not particularly limited and can be adjusted as needed, such as Figure 1 As shown in FIG. 1 , two ball rotation mounting shafts 110 are bifurcated and arranged at one end of the handle 100.

[0041] The aforementioned ball bearing 200 has its shaft core 210 sleeved on the ball body rotation mounting shaft 110 .

[0042] The end of the ball rotating installation shaft 110 is provided with a limiting convex portion 120, and one end of the ball rotating installation shaft 110 is provided with the limiting convex portion 120 after passing through the central cavity of the shaft cylinder 210. The outer diameter of the limiting convex portion 120 is larger than the inner diameter of the shaft cylinder 210 to prevent the ball 200 from falling off.

[0043] In some application scenarios, the position-limiting protrusion 120 is detachably connected to the spherical rotating mounting shaft 110. The specific detachable structure is not particularly limited and the existing technology can be directly used.

[0044] It is clear to those skilled in the art that various modifications to the above embodiments can be made without departing from the overall spirit and concept of the present invention. All of them fall within the protection scope of the present invention. The protection scheme of the present invention shall be subject to the claims attached to the present invention.

Claims

1. A ball bearing, characterized in that: For use in roller massagers, including The shell is a hollow structure, and the shell is made of stainless steel. The shaft core (210) is a through-hole structure, with two ends respectively penetrating and connected to two surfaces of the shell; A liquid cavity is formed between the shell and the shaft core cylinder (210), and liquid is arranged in the liquid cavity.

2. The ball body according to claim 1, characterized in that: An inner convex snap ring (220) is provided inside the shaft core cylinder (210).

3. The ball body according to claim 1, characterized in that: The shell is a spherical structure and is provided with a first mounting opening and a second mounting opening. The edges at both ends of the shaft core cylinder (210) are respectively connected to the first mounting opening and the second mounting opening.

4. The ball body according to claim 3, characterized in that: A center line connecting the first mounting opening and the second mounting opening passes through the spherical center of the shell.

5. The ball body according to claim 3, characterized in that: The first mounting opening and the second mounting opening are circular; the first mounting opening and the second mounting opening are respectively connected to the outer sides of the edges at both ends of the shaft core cylinder (210).

6. The ball body according to claim 1, characterized in that: The liquid is water, and the shell is stainless steel.

7. The ball body according to claim 1, characterized in that: The shell is provided with a water injection port (231), and the water injection port (231) is opened on the shell wall of the shell and is provided with a rubber plug.

8. A ball massager, characterized in that: include The handle (100) has a spherical rotating mounting shaft (110), The ball bearing body (200) described in any one of claims 1 to 7, wherein the shaft core (210) is sleeved on the ball body rotating mounting shaft (110).

9. The ball massager according to claim 8, characterized in that: The end of the spherical rotating installation shaft (110) is provided with a limiting convex portion (120), and the limiting convex portion (120) is provided after one end of the spherical rotating installation shaft (110) passes through the central cavity of the shaft core cylinder (210).

10. The ball massager according to claim 9, characterized in that: The limiting protrusion (120) is detachably connected to the spherical rotating installation shaft (110).

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