A floating ball and a fluid machine using the same

Abstract

The utility model discloses a kind of floating ball and the fluid machinery of application this floating ball, floating ball includes two plastic hollow hemispheres, and two plastic hollow hemispheres are bonded. Fluid machinery includes floating ball. The utility model is made of plastic hollow hemispheres by using polypropylene and glass fiber mixed material, combines injection molding process and internal reinforcing rib structure (including radial and annular distribution), significantly improves the strength / weight ratio of floating ball, so that its compressive strength reaches 65MPa-90MPa, while reducing weight and avoiding the security risk that metal ball welding is easy to burn through.

Description

Technical Field

[0001] This utility model relates to the field of fluid machinery technology, specifically to a float and fluid machinery using the float. Background Technology

[0002] In the field of fluid control equipment, floats are widely used as core functional units in key devices such as spherical check valves, automatic air release valves, and level control devices. Traditional processes commonly use hollow metal spheres. However, for hollow metal spheres used in pressurized liquids, a certain strength is required. Increasing the strength of a hollow metal sphere necessitates increasing its wall thickness, which leads to increased weight. This increased weight limits its application scenarios. Furthermore, hollow metal spheres are typically composed of two hemispheres welded together. For thin-walled spheres, the weld seam is prone to burn-through during welding. Some burn-through weld seams are not directly observable with the naked eye, posing a risk of problems and safety accidents during use. Utility Model Content

[0003] The purpose of this invention is to provide a float and a fluid machine using the float in order to solve the above problems.

[0004] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0005] On the one hand, a float is designed, comprising two hollow plastic hemispheres, which are bonded together.

[0006] As a further description of the above technical solution, the interior of the hollow plastic hemisphere has a reinforcing structure that radiates uniformly from the center to its inner wall.

[0007] As a further description of the above technical solution, the material of the hollow plastic hemisphere is a mixture of polypropylene and glass fiber, and the density of the polypropylene is 0.95 kg / dm³. 3 .

[0008] As a further description of the above technical solution, the reinforcing structure is a reinforcing rib.

[0009] As a further description of the above technical solution, the reinforcing rib includes a first reinforcing rib distributed radially along the hollow plastic hemisphere.

[0010] As a further description of the above technical solution, the reinforcing rib includes a first reinforcing rib distributed radially along the hollow plastic hemisphere and a second reinforcing rib distributed circumferentially along the hollow plastic hemisphere.

[0011] As a further description of the above technical solution, the hollow plastic hemisphere and the reinforcing structure are injection molded.

[0012] As a further description of the above technical solution, the two hollow plastic hemispheres have the same material and dimensions, and the wall thickness of the hollow plastic hemispheres is the same as the wall thickness of the reinforcing structure.

[0013] As a further description of the above technical solution, the surface roughness of the float is Ra1.6.

[0014] On the other hand, a fluid machine is designed, comprising the float described in any of the above.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. This utility model uses a plastic hollow hemisphere made of a mixture of polypropylene and glass fiber, combined with injection molding process and internal reinforcing rib structure (including radial and circumferential distribution), which significantly improves the strength / weight ratio of the float, making its compressive strength reach 65MPa-90MPa, while reducing weight and avoiding the safety hazard of easy burn-through when welding metal balls.

[0017] 2. The float of this utility model can be widely used in fluid machinery such as spherical check valves and liquid level control devices. It has the advantages of being lightweight, highly reliable and consistent in process, and solves the problems of traditional metal floats, such as large weight, many process defects and limited application scenarios.

[0018] To more clearly illustrate the structural features and functions of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a first embodiment of the float provided by this utility model;

[0020] Figure 2 This is a schematic diagram of a second embodiment of the float provided by this utility model;

[0021] Figure 3 This is a schematic diagram of Embodiment 3 of the float provided by this utility model.

[0022] Reference numerals: 1. Hollow hemisphere; 2. First reinforcing rib; 3. Second reinforcing rib. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0024] like Figure 1As shown, in one embodiment, a float comprises two hollow plastic hemispheres 1 bonded together. The plastic material is selected as high-density polypropylene (PP) (0.95 kg / dm³), containing 15-20% glass fiber to ensure sufficient strength. In this embodiment, the two hollow plastic hemispheres 1 are hollow internally without reinforcing ribs. This achieves a superior strength-to-weight ratio using as little plastic material as possible. Furthermore, the glass fiber reinforcement significantly improves the mechanical properties of the PP plastic, achieving a tensile strength of 65 MPa-90 MPa.

[0025] Optionally, the plastic hollow hemisphere 1 is injection molded to ensure uniformity in material and dimensions, and to ensure that each product has the same strength.

[0026] Optionally, the plastic hollow hemispheres 1 are bonded together by means of adhesive or other methods. After bonding, the surface of the sphere is polished by a centerless grinder, and the surface roughness is Ra1.6, which can effectively ensure the shape and position tolerances and surface roughness of the float sphere.

[0027] like Figure 2 As shown, in one embodiment, a float comprises two hollow plastic hemispheres 1 bonded together. The plastic material is selected as high-density polypropylene (PP) (0.95 kg / dm³), containing 15-20% glass fiber to ensure sufficient strength. In this embodiment, the two hollow plastic hemispheres 1 are hollow internally without reinforcing ribs. This achieves a superior strength-to-weight ratio using as little plastic material as possible. Furthermore, the glass fiber reinforcement significantly improves the mechanical properties of the PP plastic, achieving a tensile strength of 65 MPa-90 MPa.

[0028] Furthermore, a reinforcing structure is uniformly radiating from the center to the inner wall inside the plastic hollow hemisphere 1. The reinforcing structure is a reinforcing rib. In this embodiment, the reinforcing rib includes a first reinforcing rib 2 distributed radially along the plastic hollow hemisphere 1, which can effectively improve the compressive strength of the float and effectively reduce the phenomenon of the float crushing under static pressure.

[0029] Furthermore, the plastic hollow hemisphere 1 and the reinforcing structure are integrally injection molded, which can effectively ensure the compressive strength of the float and prevent the plastic hollow hemisphere 1 and the reinforcing structure from separating under static pressure, thus affecting the compressive strength of the float.

[0030] Furthermore, the materials and dimensions inside the two hollow plastic hemispheres 1 are identical, and the wall thickness of the hollow plastic hemispheres 1 is the same as that of the reinforcing structure, which can effectively ensure the uniformity of the compressive strength of the hollow plastic hemispheres 1, and also ensure the uniformity of the compressive strength of each product.

[0031] like Figure 2 As shown, in one embodiment, a float comprises two hollow plastic hemispheres 1 bonded together. The plastic material is selected as high-density polypropylene (PP) (0.95 kg / dm³), containing 15-20% glass fiber to ensure sufficient strength. In this embodiment, the two hollow plastic hemispheres 1 are hollow internally without reinforcing ribs. This achieves a superior strength-to-weight ratio using as little plastic material as possible. Furthermore, the glass fiber reinforcement significantly improves the mechanical properties of the PP plastic, achieving a tensile strength of 65 MPa-90 MPa.

[0032] Furthermore, the reinforcing structure consists of reinforcing ribs, including a first reinforcing rib 2 distributed radially along the plastic hollow hemisphere 1 and a second reinforcing rib 3 distributed circumferentially along the plastic hollow hemisphere 1. This can effectively improve the compressive strength of the float and effectively reduce the phenomenon of the float crushing under static pressure.

[0033] In one embodiment, a fluid machine includes the aforementioned float, which can be applied to applications such as ball check valves, float valves, air valves, and fire hydrants.

[0034] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A float, characterized in that, It consists of two hollow plastic hemispheres, which are bonded together. The interior of the hollow plastic hemisphere has a reinforcing structure that radiates evenly from the center to its inner wall. The hollow plastic hemisphere is made of a mixture of polypropylene and glass fiber, and the density of the polypropylene is 0.95 kg / dm³. 3 ; The reinforcing structure is a reinforcing rib.

2. The float according to claim 1, characterized in that, The reinforcing ribs include a first reinforcing rib distributed radially along the hollow plastic hemisphere.

3. The float according to claim 1, characterized in that, The reinforcing ribs include a first reinforcing rib distributed radially along the hollow plastic hemisphere and a second reinforcing rib distributed circumferentially along the hollow plastic hemisphere.

4. The float according to claim 1, characterized in that, The hollow plastic hemisphere and the reinforcing structure are injection molded.

5. The float according to claim 1, characterized in that, The two hollow plastic hemispheres are made of the same material and have the same dimensions. The wall thickness of the hollow plastic hemispheres is the same as the wall thickness of the reinforcing structure.

6. The float according to claim 1, characterized in that, The surface roughness of the float is Ra1.

6.

7. A fluid machine, characterized in that, Includes the float as described in any one of claims 1-6.

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