Water-filled dumbbell

Abstract

The utility model discloses a water-filled dumbbell which comprises a flexible ball body, and the ball body is of a hollow structure and is used for being filled with water. A handle is welded on the flexible ball body in a thermoplastic manner; a water injection opening is formed in the lateral upper position of the flexible ball body; an automatic valve is welded to the water injection opening through thermoplastic welding. The automatic valve comprises an outer valve body, an inner valve body and a core valve; the inner valve body is fixed in the outer valve body through a connecting rod, and the inner valve body and the outer valve body are coaxially designed; the core valve penetrates through the inner valve body, a sealing piece is arranged at the bottom of the core valve, a pressing handle is arranged at the top of the core valve, a spring is arranged between the pressing handle and the inner valve body, and the sealing piece keeps blocking the outer valve body under the action of the spring. The valve structure is improved, use is more convenient, and the service life is longer.

Description

TECHNICAL FIELD

[0001] The utility model relates to body -building equipment field especially is concerned with a convenient to carry, environmental protection, weight adjustable water filling dumbbell. BACKGROUND

[0002] Traditional dumbbell adopts iron, cement or plastic material to make, has the problem such as fixed weight, inconvenient adjustment, large space occupation, environmental pollution. Along with the diversification of people's demand for fitness and the enhancement of environmental awareness, the market is in urgent need of a dumbbell which is both environmentally friendly and convenient to adjust weight. Although there are some water filling dumbbell products on the market at present, most of them have problems such as complex structure, poor stability and inconvenient use. For example, the existing application of a spherical water filling exercise dumbbell (202311320125.8) increases the air bag in the ball to control the size of the containing chamber, reduce the liquid shaking during exercise, and improve the stability of the dumbbell. However, in actual use, due to the gravity, the water in the ball does not have a large amount of shaking problem. The design of increasing the air bag in the ball makes the structure of the water filling dumbbell complex, makes the water filling difficult, and the complex structure also reduces the stability of the structure, making it more easily damaged. SUMMARY

[0003] The problem to be solved by the utility model is to provide an improved or replacement scheme for the above-mentioned deficiencies in the prior art, especially a simple and convenient water filling and discharging, simple and durable structure.

[0004] To solve the above problems, the utility model adopts the following scheme: a water filling dumbbell, characterized by comprising a flexible ball, the ball is a hollow structure, which is used for water filling; a handle is welded on the flexible ball by thermoplastic welding; a water inlet is arranged at the upper side of the flexible ball; an automatic valve is welded on the water inlet by thermoplastic welding; the automatic valve comprises an outer valve body, an inner valve body and a core valve; the inner valve body is fixed in the outer valve body by a connecting rod, and the inner valve body and the outer valve body are coaxially designed; the core valve is arranged through the inner valve body, the bottom of the core valve is provided with a sealing piece, the top is provided with a pressing handle, a spring is arranged between the pressing handle and the inner valve body, and the sealing piece is kept closed to the outer valve body under the action of the spring.

[0005] Further, the water filling dumbbell is characterized in that the inner wall of the inner valve body is provided with a track, and short-range grooves and long-range grooves are arranged on the track at intervals; the core valve is provided with a sliding block matched with the track; the bottom of the sliding block is uniformly arranged with triangular teeth; the core valve bottom is sleeved with a sliding claw sleeve matched with the triangular teeth and the track; the core valve sliding claw sleeve can travel along the short-range grooves and the long-range grooves in turn.

[0006] Further, the water-filled dumbbell is characterized in that the outer valve body is provided with a skirt, the outer valve body is made of hard plastic material, and the skirt is thermoplastically welded with the flexible ball.

[0007] Further, the water-filled dumbbell is characterized in that the outer valve body further comprises a valve cap, the valve cap is provided with two symmetrical hooks, the hooks are matched with the connecting rod, and the hooks can be locked with the connecting rod when the valve cap is rotated.

[0008] Further, the water-filled dumbbell is characterized in that a flexible sealing layer is arranged on the sealing sheet, so as to improve the sealing performance between the outer valve body and the sealing sheet.

[0009] Further, the water-filled dumbbell is characterized in that the outer valve body further comprises a flexible annular plastic sealing ring, the inner diameter of the flexible annular plastic sealing ring is greater than or equal to the outer diameter of the outer valve body, and the flexible annular plastic sealing ring is sleeved on the outer valve body to clamp the skirt between the flexible ball and the flexible annular plastic sealing ring.

[0010] The technical effects of the water-filled dumbbell are as follows: compared with the existing water-filled dumbbell, useless settings such as an inner air bag are saved. The water filling port is improved, so that water filling and discharging are more convenient and fast. The sealing performance of the valve with the existing rotary knob structure depends on the force during screwing, generally, in order to ensure the sealing performance, the valve is screwed tightly during use, however, the combination between the valve and the ball is generally achieved by thermoplastic welding, the strength of the structure depends on the material properties and is not very high, therefore, after being used for many times, the valve is prone to tearing, and water leakage occurs. Therefore, the valve with the rotary knob structure seriously affects the service life of the water-filled dumbbell. The automatic valve with the spring structure is adopted in the design, the skirt and the flexible annular plastic sealing ring are additionally arranged on the outer valve body, the combination area is increased, and the combination strength of the valve and the flexible ball is improved. The sealing performance of the valve is no longer dependent on the force during screwing, but depends on the spring force, the contact area between the sealing sheet and the outer valve body, and the internal pressure of the ball. Therefore, during use, the combination part of the outer valve body and the flexible ball is not damaged, so that the service life is prolonged. Moreover, due to the fact that the valve is free of the related structure of the air bag, water filling is more convenient, when tap water is filled, the valve port only needs to be connected to the tap water port, when a pond is filled with water, the press handle only needs to be pressed, and the filling is completed by releasing the press handle; the press handle only needs to be pressed when water is discharged. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a structure schematic view of the water-filled dumbbell.

[0012] Figure 2 It is a schematic view of the outer valve body.

[0013] Figure 3 It is a sectional view of the outer valve body.

[0014] Figure 4 It is a schematic view of the core valve.

[0015] Figure 5 It is a schematic view of the sliding claw sleeve.

[0016] Figure 6 It is a schematic view of the core valve installation.

[0017] Figure 7 It is a schematic view of the valve cap.

[0018] Wherein, 1 is a flexible ball, 2 is a handle, 3 is an automatic valve, 4 is a valve cap, 31 is an outer valve body, 32 is an inner valve body, 33 is a core valve, 34 is a valve cap, 311 is a connecting rod, 312 is a skirt, 313 is a flexible annular plastic sealing ring, 321 is a track, 331 is a pressing handle, 332 is a sliding block, and 333 is a sealing sheet. DETAILED DESCRIPTION

[0019] The utility model will be made further detailed description in combination with the drawings.

[0020] Embodiment: as Figure 1 shown, a water-filled dumbbell, including flexible ball, the ball is hollow structure, it is used for filling water in; the flexible ball is welded with handle through thermoplastic on the side upper position; the flexible ball is welded with automatic valve through thermoplastic and is provided with water inlet on the side upper position; the automatic valve includes outer valve body, inner valve body and core valve;The inner valve body is fixed in the outer valve body inside through connecting rod, and the inner valve body and the outer valve body are coaxial design;The core valve is set through the inner valve body, and the core valve bottom is provided with sealing sheet, and the top is provided with pressing handle, and the spring is set between the pressing handle and the inner valve body, and the sealing sheet keeps plugging the outer valve body under the action of the spring.

[0021] As Figure 3 , Figure 4 , Figure 5 , Figure 6 shown, the inner wall of the inner valve body is provided with a track, and the track is provided with short-range grooves and long-range grooves at intervals;The core valve is provided with a sliding block matched with the track;The sliding block bottom is uniformly arranged with triangular teeth;The core valve bottom is provided with a sliding claw sleeve matched with the triangular teeth and the track;Pressing the core valve sliding claw sleeve can travel along the short-range grooves and long-range grooves in turn. A flexible sealing layer is provided on the sealing sheet to improve the sealing between the outer valve body and the sealing sheet.

[0022] As Figure 2 , Figure 3 , Figure 7As shown, the outer valve body is provided with a skirt, the outer valve body adopts hard plastic material, and the skirt is thermoplastically welded with the flexible ball. The outer valve body further comprises a valve cap, the valve cap is provided with two symmetrical hooks, the hooks are matched with the connecting rod, and the hooks can be locked with the connecting rod when the valve cap is rotated. The outer valve body further comprises a flexible annular plastic sealing ring, the inner diameter of the flexible annular plastic sealing ring is greater than or equal to the outer diameter of the outer valve body, and the flexible annular plastic sealing ring is sleeved on the outer valve body to clamp the skirt between the flexible ball and the flexible annular plastic sealing ring.

Claims

1. A water-filled dumbbell, characterized by, The utility model provides a flexible ball, the ball is hollow structure, is used for filling water in, the handle is welded on the flexible ball through thermoplastic, the water inlet is equipped with on the side of the flexible ball, the automatic valve is welded through thermoplastic on the water inlet, the automatic valve includes outer valve body, inner valve body and core valve, the inner valve body is fixed in the outer valve body through connecting rod, and the inner valve body and outer valve body coaxial design, the core valve is arranged through the inner valve body, and the bottom of core valve is equipped with sealing sheet, and the top is equipped with pressing handle, and the spring is arranged between pressing handle and inner valve body, and sealing sheet keeps blocking outer valve body under the action of spring.

2. The filled water dumbbell of claim 1, wherein, The inner wall of the inner valve body is provided with a track, and short-range grooves and long-range grooves are arranged at intervals on the track; The core valve is provided with a slider matched with the track; The bottom of the slider is uniformly arranged with triangular teeth; The bottom of the core valve is sleeved with a sliding claw sleeve matched with the triangular teeth and the track; The sliding claw sleeve of the core valve can travel along the short-range grooves and long-range grooves in turn.

3. The water-filled dumbbell of claim 1, wherein, The outer valve body is provided with a skirt, and the outer valve body is made of hard plastic material, and the skirt is thermally welded with the flexible ball.

4. The filled water dumbbell of claim 1, wherein, The outer valve body further includes a valve cap, the valve cap is provided with two symmetrical hooks, the hooks are matched with the connecting rod, and the hooks can be locked with the connecting rod when the valve cap is rotated.

5. The water-filled dumbbell of claim 1, wherein, A flexible sealing layer is arranged on the sealing sheet to improve the sealing between the outer valve body and the sealing sheet.

6. The water-filled dumbbell of claim 3, wherein, The outer valve body further includes a flexible annular plastic sealing ring, the inner diameter of the flexible annular plastic sealing ring is greater than or equal to the outer diameter of the outer valve body, and the flexible annular plastic sealing ring is sleeved on the outer valve body to clamp the skirt between the flexible ball and the flexible annular plastic sealing ring.

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