CN2361057Y

CN2361057Y - Agricultural spade

Info

Publication number: CN2361057Y
Application number: CN 99207853
Authority: CN
Inventors: 王复起
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-04-15
Filing date: 1999-04-15
Publication date: 2000-02-02
Anticipated expiration: 2009-04-15

Abstract

The utility model relates to an agricultural spade, which is composed of a spade plate and spade trousers. The spade plate and the spade trousers are combined into an integral structure. The upper and the lower overlapping positions of the spade trousers which are wrapped into the shape of a cylinder are respectively provided with homodromous half convex slots, the tangent planes of the half convex slots are broken, and the two overlapping positions are buckled with each other via the half convex slots. The degree of firmness of the overlapping positions of the spade trousers of the utility model is improved. In the meantime, the utility model has the advantages of simple processing technology, labor saving, time saving, and high work efficiency.

Description

Farm spade

The utility model relates to farm machinery, particularly a kind of farm spade.

After its spade trousers of existing farm spade are rolled into tubular with sheet material, be drilled with rivet hole, be fastenedly connected by this hole grafting rivet and spade handle at the overlapping part of spade trousers.Its weak point is fastening boring, the riveted joint two procedures of needing of spade trousers, has obviously reduced work efficiency, has improved cost.And the fastening spade trousers inwall projection that causes of rivet, not convenient when the spade handle embeds, influence the firmness that the spade trousers combine with the spade handle, especially use often to disconnect because of the rivet slippage causes spade handle and spade trousers, make troubles to the user.A kind of modified farm spade is arranged at present, it is the Long Circle tongue that is processed with correspondence at the overlapping part of spade trousers, and by this tongue snapping, to be these tongue two ends adopt as stress point and spade trousers its shortcoming is more crisp steel plate, so easily rupture with the trousers body in these tongue two ends.

The purpose of this utility model is exactly that a kind of spade trousers overlapping part is fastening, the farm spade of processing technology saving of work and time and provide in order to overcome above-mentioned weak point of the prior art.

The purpose of this utility model is achieved in that it is made of spade plate, spade trousers, spade plate and spade trousers are structure as a whole, be rolled into tubular the spade trousers its up and down overlapping part be provided with respectively in the same way, positive tangent plane is the semi-convex groove that disconnects shape, two overlapping parts pass through this semi-convex groove snapping.

The utility model compared with prior art, since the overlapping part of spade trousers adopt in the same way, positive tangent plane is the semi-convex groove snapping that disconnects shape, its main stress point is on the positive tangent plane of semi-convex groove, and the stressed size of semi-convex groove is by radial the slowing down of its positive tangent plane semicircular in shape, the edge of semi-convex groove is almost identical with other position of spade trousers with stress intensity between the trousers body, so the overlapping part firmness of spade trousers improves greatly.Processing technology is also very simple simultaneously, and saving of work and time has improved work efficiency.

The explanation of accompanying drawing picture face:

The structural representation that Fig. 1 is.

Below in conjunction with drawings and Examples in detail the utility model is described in detail.

The utility model is made up of spade plate 1, spade trousers 2, and spade plate 1 is structure as a whole with spade trousers 2, be rolled into tubular spade trousers 2 its up and down overlapping part be provided with respectively in the same way, positive tangent plane is semi-convex groove 3, two overlapping parts that disconnect shape and passes through these semi-convex groove 3 snappings.For making two overlapping parts locking firm, stressed evenly, the utility model embodiment is provided with a pair of respectively at the semi-convex groove 3 of overlapping part up and down.

Claims

1, a kind of farm spade, comprise spade plate (1), spade trousers (2), spade plate (1) is structure as a whole with spade trousers (2), it is characterized in that being rolled into tubular spade trousers (2) its up and down overlapping part be provided with respectively in the same way, positive tangent plane is the semi-convex groove (3) that disconnects shape, two overlapping parts pass through this semi-convex groove (3) snapping.

2, farm spade according to claim 1 is characterized in that the semi-convex groove (3) of overlapping part is provided with a pair of respectively up and down.