CN211611458U

CN211611458U - Dumbbell disc

Info

Publication number: CN211611458U
Application number: CN201921779335.2U
Authority: CN
Inventors: 李浩炜
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-22
Filing date: 2019-10-22
Publication date: 2020-10-02
Anticipated expiration: 2029-10-22

Abstract

The utility model discloses a dumbbell barbell disc, including casing and preforming packing core, preforming packing core is spacing to be fixed inside the casing, the casing center is provided with the pilot hole that is used for the assembly pole, preforming packing core is the fashioned filler of suppression in advance, preforming packing core shape and casing phase-match. The utility model has the advantages that: because the plastic shell is adopted for integral thermoplastic molding, the filling material is formed by presetting in a pre-molding mode and then is fixed in the shell, the density of the pre-molded filling core is greater than that of the filled material, the size of the final disc is smaller, the occupied space is saved, the disc is convenient to place and transport, the filling process is not needed, and the cost is saved.

Description

Dumbbell disc

Technical Field

The utility model relates to a sport equipment field, in particular to dumbbell barbell disc.

Background

The barbells and barbells are common fitness equipment, and the barbells or the barbells in the prior art are generally in a structure that barbell plates or dumbbell plates are fixed at two ends of a barbell rod or a dumbbell rod. The dumbbell barbell disc or barbell disc in the prior art is usually formed by a shell structure adopted and a filled batching material or directly cast into a disc by adopting a casting mode, the filling mode adopts a concrete filling mode, the processing environment is poor due to the adoption of the filling mode, more labor is consumed, the density of concrete which is not solidified is low as a filler, the volume is large under the condition of equal weight, the final disc is large in volume, and more space is occupied during placement and transportation. And the traditional die casting method has huge energy consumption and environmental pollution. The structure that the metal shell is punched and formed together with the filler is adopted in the prior art, the structure needs to adopt a metal material, the cost is high, the punching needs special punching equipment for punching, the punching cost is high, the metal material is adopted, the structures such as a rubber sleeve of the appearance of the disc are separated from the shell, the texture is poor, more burr points are arranged on the shell, and the rubber sleeve is easy to strip after long-time use.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a dumbbell barbell disc that processing cost is low, the volume is less, feel is good, practice thrift the human cost.

In order to solve the technical problem, the utility model discloses a technical scheme does: the utility model provides a dumbbell barbell piece, includes casing and preforming packing core, the spacing fixing of preforming packing core is inside the casing, the casing center is provided with the pilot hole that is used for the assembly pole, preforming packing core is the filler of compression moulding in advance, preforming packing core shape and casing phase-match.

Further, the shell comprises an upper shell and a lower shell, and the upper shell and the lower shell are respectively integrally formed.

Furthermore, the shell comprises an upper shell and a lower shell, the upper shell and the lower shell respectively comprise an outer edge and an inner edge which form a surrounding barrier, the outer edge of the upper shell is matched with the outer edge of the lower shell in size, the outer edge of the lower shell is inserted into the inner side of the outer edge of the upper shell, the inner edge of the upper shell is matched with the inner edge of the lower shell in size, and the inner edge of the upper shell and the inner edge of the lower shell are inserted into each other to form an assembling hole for assembling the rod.

Further, the outer edge of the upper shell and the outer edge of the lower shell are fixed through thermoplastic molding, and the inner edge of the upper shell and the inner edge of the lower shell are fixed through thermoplastic molding.

Further, the inner edge of the center of the upper shell protrudes to form a hollow column body, and the hollow column body and the inner edge of the lower shell form an assembling hole for assembling the rod.

Furthermore, the inner edges of the centers of the upper shell and the lower shell protrude to form hollow cylinders, and the two hollow cylinders are connected in a staggered mode to form assembling holes for assembling the rods.

Furthermore, an external hot plastic sleeve is sleeved on the periphery of the shell, the external hot plastic sleeve and the shell are fixed in a thermoplastic molding mode, an internal hot plastic sleeve is sleeved on a central assembling hole of the shell, and the internal hot plastic sleeve and the shell are fixed in a thermoplastic molding mode.

By adopting the technical scheme, the plastic shell is adopted for integral thermoplastic molding, the filling material is pre-formed in a pre-forming mode and then is fixed in the shell, the density of the pre-formed filling core is greater than that of the filled material, the size of the final disc is small, the occupied space is saved, the disc is convenient to place and transport, the filling process is not needed, the cost is saved, in addition, the plastic shell is adopted for thermoplastic molding of the fixed connection part, the disc is free of burrs, the processability is high, and the texture of the product is good.

Drawings

Fig. 1 is an expanded structural view of the present invention;

fig. 2 is a longitudinal sectional view of the present invention.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Referring to fig. 1 and 2, the present embodiment discloses a dumbbell disc, which comprises an upper shell 1, a lower shell 2 and a preformed filling core 3, wherein the upper shell 1 and the lower shell 2 are respectively integrally formed by plastic injection molding. The upper shell 1 and the lower shell 2 combine to form a shell for filling a preformed filler core 3. The preforming filling core 3 is fixed inside the shell in a limiting mode, the center of the upper shell 1 and the center of the lower shell 2 are provided with assembling holes for assembling rods, the preforming filling core 3 is a preformed filler, and the shape of the preforming filling core 3 is matched with that of the shell. In this embodiment, clay or concrete with a high density may be formed by a mold array or a mold capable of forming a fixed shape, and the filling material may be poured into a disc-shaped mold in advance, and the disc-shaped mold may be dried after forming the fixed shape, and the disc-shaped mold may be placed into the housing after being dried to be able to be moved, and this process may be performed manually or by a machine. The utility model discloses a can also adopt other stopping such as iron fillings clay mixture among other embodiment, also can adopt materials such as viscidity glue to mix and be convenient for rapid prototyping. Feasible, in the utility model discloses an among other concrete implementation manners, can also make its surface form smooth surface in its surface coating or the dipping glued membrane behind preforming refill 3, avoid the burr to can carry out integrative injection moulding's mode formation casing, convenient processing. For example, it may be dipped into a polyurethane glue and quickly dried off after dipping so that the polyurethane glue fills the burrs of the preformed core 3, thereby forming a smooth surface. The filling material is pre-formed in a pre-forming mode and then fixed in the shell, the density of the pre-formed filling core is larger than that of the filled material, and finally the disc is small in size, occupied space is saved, and the disc is convenient to place and transport.

The upper shell 1 and the lower shell 2 respectively comprise an outer edge and an inner edge which form a surrounding barrier, the outer edge 11 of the upper shell 1 is matched with the outer edge 21 of the lower shell 2 in size, the outer edge 21 of the lower shell 2 is inserted into the inner side of the outer edge 11 of the upper shell 1, the inner edge 12 of the upper shell 1 is matched with the inner edge 22 of the lower shell 2 in size, and the inner edge 12 of the upper shell 1 and the inner edge 22 of the lower shell 2 are inserted into each other to form an assembling hole for assembling a rod. It is possible that the outer edge 11 of the upper case 1 and the outer edge 21 of the lower case 2 are fixed by thermoforming, and the inner edge 12 of the upper case 1 and the inner edge 22 of the lower case 2 are fixed by thermoforming. It is feasible that, in this embodiment, the inner rim 12 of the center of the upper shell 1 protrudes to form a hollow cylinder which forms with the inner rim 22 of the lower shell 2 a fitting hole 6 for fitting a rod. In other embodiments of the present invention, the inner edges of the centers of the upper casing 1 and the lower casing 2 protrude to form a hollow cylinder, and the two hollow cylinders are connected in a staggered manner to form an assembly hole for the assembly rod, i.e. the two hollow cylinders are fixed by thermal injection molding after being plugged. After molding, the hot plastic sleeve 4 is molded in the assembling hole, the hot plastic sleeve 4 can be made of PVC plastic, PP plastic or PE plastic and the like, and can also be made of silica gel, after hot molding, on one hand, the joint of the upper shell and the lower shell is fixed, and on the other hand, the attractiveness and the friction force are increased.

The casing has outer hot plastic cover 5 all around an organic whole to mould plastics, promptly at the outer fringe plastic cover of moulding plastics of casing, and this gum cover can be materials such as plastics or silica gel, and outer hot plastic cover 5 is fixed with the casing thermoplastic forming, and outer hot plastic cover 5 is soft material, conveniently places and increases frictional force. The plastic is integrally formed, so that burrs and the like in the processing process of shells such as metal and the like can be avoided, the texture of the disk can be enhanced, the later-stage machinability is stronger, and the color and form selectivity is stronger.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims

1. A dumbbell barbell disc is characterized in that: the pre-forming filling core is limited and fixed inside the shell, an assembling hole for assembling the rod is formed in the center of the shell, the pre-forming filling core is a pre-compression-formed filler, the shape of the pre-forming filling core is matched with that of the shell, and the pre-forming filling core is in a pre-forming fixed shape.

2. The dumbbell disc of claim 1, wherein: the shell comprises an upper shell and a lower shell which are respectively integrally formed.

3. A dumbbell barbell disc according to claim 2, characterized in that: the upper shell and the lower shell respectively comprise an outer edge and an inner edge which form a surrounding barrier, the outer edge of the upper shell is matched with the outer edge of the lower shell in size, the outer edge of the lower shell is inserted into the inner side of the outer edge of the upper shell, the inner edge of the upper shell is matched with the inner edge of the lower shell in size, and the inner edge of the upper shell and the inner edge of the lower shell are inserted into each other to form an assembling hole for assembling a rod.

4. A dumbbell barbell disc according to claim 3, characterized in that: the outer edge of the upper shell and the outer edge of the lower shell are fixed through thermoplastic molding, and the inner edge of the upper shell and the inner edge of the lower shell are fixed through thermoplastic molding.

5. The dumbbell disc of claim 4, wherein: the inner edge of the center of the upper shell protrudes to form a hollow column body, and the hollow column body and the inner edge of the lower shell form an assembling hole for assembling the rod.

6. The dumbbell disc of claim 4, wherein: the inner edges of the centers of the upper shell and the lower shell protrude to form hollow cylinders, and the two hollow cylinders are connected in a staggered mode to form assembling holes for assembling the rods.

7. A dumbbell disc according to any one of claims 1 to 6, characterised by: the shell is integrally molded with an external thermal plastic sleeve at the periphery, and the central assembly hole of the shell is integrally molded with an internal thermal plastic sleeve.