CN2225281Y

CN2225281Y - Resilient sand bag

Info

Publication number: CN2225281Y
Application number: CN 95213977
Authority: CN
Inventors: 吕坤如
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-06-06
Filing date: 1995-06-06
Publication date: 1996-04-24
Anticipated expiration: 2005-06-06

Abstract

The utility model relates to a resilient sand bag for martial arts training. The tension spring (2) of the sand bag replaces the original chains or ropes, and the sand bag is made of canvas, a reinforcing bottom lining (9) and a reinforcing rib band (11) are added, and an interlayer (6) is made of the high pressure plastic foam. The utility model has the advantages of strong stretch proofing and compression resistant, shock resistance, abrasion resistance, stable performance, good hand feeling, long service life, and high performance price ratio, which is widely used for boxing, sanda, tae kwon do, combat, etc., sports item and is an ideal sand bag replacing product at present.

Description

Resilient sand bag

The utility model relates to the Resilient sand bag that a kind of wushu training is used,

Now each wushu venue hangs the sand pocket that uses, and fatigue resistance is low, and tension, ultimate compressive strength are little, use after the two weeks, and the chain fracture just appears in sand pocket, the lining fragmentation, and phenomenons such as sand grains leakage are used a few days again, and sand pocket is just lost function of use.Dissect the project organization of existing sand pocket, be not difficult to find, the main cause that sand pocket damages, that is exactly that people often only consider sand pocket static strength constraints, ignores sand pocket dynamic stress constraints, in short, existing sand pocket structure seriously breaks away from wushu training practice needs, therefore design a kind of function admirable, the novel sand pocket of long service life is the important topic that current wushu training circle needs to be resolved hurrily.

The purpose of this utility model is exactly the many deficiencies at sand pocket at present commonly used, and a kind of cost performance height, long service life are provided, the convenient Resilient sand bag that is suitable for.

The technical scheme of the utility model sand pocket is: the Resilient sand bag that a kind of wushu training is used, it has interlayer (6) between overcoat (7) and interior cover (5), inserts (8) is equipped with in interior cover (5) the inside, connector (4) is fixed on the upper edge of overcoat (7), use extension spring (2) successively between hook (1) and the connector (4), chain (3) links to each other, between the bottom of the bottom of overcoat (7) and interior cover (5), reinforcement end liner (9) is arranged, overcoat (7) is selected canvas fabric for use, adopt three road sutures (10) to sew up the sand pocket bottom, interlayer (6) is selected high voltage package foam plastics for use, reinforcement band (11) adopts knits braid, in the heavyweight sand pocket, and can increase to 8 by 4 original reinforcement bands.

The utility model sand pocket is compared the beneficial effect that is had with original sand pocket: its tension, the compression strength limit are big, shock-resistant, endurance, serviceability is stable, good hand touch was 1 year service life, and cost performance is bigger five times than existing sand pocket, except that lining damages, other parts can not damage, and are current desirable sand pocket substitute products, can be widely used in sports items such as boxing, free combat, tae kwon do, fistfight.

Below in conjunction with accompanying drawing, embodiment of the present utility model is described.

Fig. 1 is the utility model sand pocket front view.

Fig. 2 is that the A of Fig. 1 is to view.

As Fig. 1, among Fig. 2, several springs (2) of ining succession below the hook (1) are the conical surface and distribute, for the suspension height of adjusting sand pocket and the stability of work, can between spring (2) and connector (4), increase chain (3), chain (3) generally can adopt 2-10 joints, and inserts (8) can adopt the mixture of sand grains and sawdust.Overcoat (7) replaces original chemical fiber plus material with canvas fabric, can strengthen the pliability of sand pocket, improves impact resistance.

The utility model Resilient sand bag is graded by weight, and can make the series of products of 30Kg, 40Kg level, 50Kg level, and in these series of products, the quantity of extension spring (2) can be selected for use in 3-10 scopes, and reinforcement band (11) can be selected for use in 4-10 scopes.

Claims

1, a kind of Resilient sand bag, it has interlayer (6) between overcoat (7) and interior cover (5), inserts (8) is equipped with in interior cover (5) the inside, and connector (4) is fixed on the upper edge of overcoat (7), it is characterized in that, link to each other with extension spring (2) between hook (1) and the connector (4).

2, Resilient sand bag according to claim 1 is characterized in that between the bottom of the bottom of overcoat (7) and interior cover (5) reinforcement end liner (9) being arranged, and overcoat (7) is selected canvas fabric for use, adopts three roads seams (10) to sew up the sand pocket bottom.

3, Resilient sand bag according to claim 1 and 2 is characterized in that interlayer (6) selects the high pressure foamed plastics for use.

4, Resilient sand bag according to claim 1 is characterized in that, reinforcement band (10) adopts and knits braid, can adopt 6 to 8 reinforcement bands in the heavyweight sand pocket.