CN201842604U

CN201842604U - Steel wire rope type manual tractor

Info

Publication number: CN201842604U
Application number: CN2010206158571U
Authority: CN
Inventors: 周美军
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-11-10
Filing date: 2010-11-10
Publication date: 2011-05-25
Anticipated expiration: 2020-11-10

Abstract

A steel wire rope type manual tractor comprises a housing and a manual traction device arranged in the housing, and is characterized in that the head of the housing is arc-shaped, a ring-shaped concave-convex structure is respectively on both sides of the housing in the positions close to the head, and a wedged reinforcing block is respectively arranged on two opposite sides of each ring-shaped concave-convex structure. Compared with the prior art, the utility model has the advantages that the housing structure of the conventional manual tractor is improved, the housing head with concentrated stress points is designed into arc-shaped, the stress condition of the housing of the tractor is improved, the load-bearing capacity of the housing is improved, and the housing is effectively prevented from deformation or fragmentation; moreover, in view of the integral appearance, the appearance of the housing is attractive and smooth by virtue of the arc-shaped line structure, thereby facilitating improvement of the overall performance of the products.

Description

Steel rope hand traction machine

Technical field

The utility model relates to a kind of steel rope hand traction machine.

Background technology

Lever Blocks has compact conformation, from heavy and light, easy to carry, characteristics such as volume is little, stable performance, the principle of work of Lever Blocks is the clamp by two pairs of level and smooth self-lockings, alternately press from both sides steel rope as two steel pawls, do straight reciprocating motion, thereby reach towage.It can serve as traction, elevator in various engineerings.Operations such as lifting, decapacitation are outside level, vertical direction are used, and it can also be on the slope, be uneven, operate under the service conditions of narrow tunnel, S-turn, also can reach anywhere in the power free environment and use.

The palm cucurbit is divided into two kinds of loop chain type and steel wire rope types usually, and wherein, the loop chain type Lever Blocks drives hoisting chain lifting weight by pulling handle by transmission device; The steel rope Lever Blocks is a kind of light and handy easy hand traction machinery, it uses lever principle, pull by manpower and to advance or fall back handle, pull power with less hand, convert to than the load of large-tonnage weight and do straight-line motion, finish lifting, the operation of traction and three types of tensionings, the steel rope Lever Blocks have compact conformation, volume little, from characteristics such as heavy and light, easy to carry, stable performances.

In the prior art, steel rope palm cucurbit is mainly by the in-to-in manual wrench application of force, the point of application is positioned at the enclosure interior of steel rope palm cucurbit, but the outside force part in the use mainly concentrates on the housing, and the front portion of housing is the position that load is comparatively concentrated, present traction machine housing head then mostly is the polygonized structure of having edges and corners, this structure is easier in use cause that the housing stress point is concentrated, make housing discontinuity and cause housing distortion even fracture.

Summary of the invention

Technical problem to be solved in the utility model is to provide a kind of shell stressed more even, the solid durable and smooth steel rope hand traction machine attractive in appearance of profile at above-mentioned prior art present situation.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: this steel rope hand traction machine, include housing and be arranged at the interior hand traction device of this housing, it is characterized in that: the head of described housing is circular arc, the both sides of this housing are respectively arranged with an annular concave-convex structure in the position near described head, and the relative both sides of each described annular concave-convex structure are respectively arranged with the wedge shape boss.

In order further to improve the intensity and the rigidity of housing, prevent the housing stress deformation, as preferably, described housing includes front side plate and the rear quarter panel that is fastened on one mutually, and described annular concave-convex structure and wedge shape boss are arranged at respectively on the main surface of described front side plate and rear quarter panel.

As further preferred, described hand traction device includes the support that is placed in the described housing, is provided with in the described support that pine is unloaded handle, the handle that advances, retreats handle and drive the connecting rod mechanism of each handle action.

Compared with prior art, advantage of the present utility model is: the housing structure to existing hand traction machine improves, the housing head that stress point is comparatively concentrated is designed to circular arc, improve the force-bearing situation of traction machine housing, improved the load-carrying capacity of housing, prevented housing distortion or fracture effectively, and, on overall appearance, the circular arc linear also makes housing profile smoothness more attractive in appearance, helps improving the overall performance of product.

Description of drawings

Fig. 1 is the perspective view of the utility model embodiment.

Fig. 2 is the exploded drawings of the utility model embodiment.

Fig. 3 is the housing structure scheme drawing of the utility model embodiment.

The specific embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

As Fig. 1; Fig. 2 and shown in Figure 3; the steel rope hand traction machine of present embodiment includes housing 1 and is arranged at the interior hand traction device 2 of this housing; wherein; hand traction device 2 includes the support 21 that is placed in the housing 1; be provided with pine in the support and unload handle 22; handle 23 and retreat handle 24 advances; above-mentioned pine is unloaded handle 22; handle 23 and retreat handle 24 and drive by the connecting rod mechanisms that are arranged at equally in the support 21 advances; concrete connection structure of the handle of hand traction device 2 and principle of work are prior art; the inventive point that neither the application will protect is not given unnecessary details at this.

The application's inventive point is housing structure, wherein, housing 1 includes front side plate 11 and the rear quarter panel 12 that is fastened on one mutually, front side plate 11 is identical with rear quarter panel 12 shape and structures and pile setting, the front outline line of front side plate 11 comprises having last circular arc line 111 and following circular arc line 112, the front outline line of rear quarter panel 12 also includes circular arc line 121 and following circular arc line 122, thus, the head integral body of housing 1 is circular arc, and, the both sides of housing 1 (being on the main surface of front side plate 11 and rear quarter panel 12) form the concaveconvex structure 113 of an annular respectively in the position near this housing 1 head, 123, for further improving intensity, also form the boss 114 of wedge shape respectively in the relative both sides of annular concave-convex structure, 124.When traction machine is worked, the outside stressed head that mainly concentrates on housing, the circular arc design of housing head can reduce stress concentration effectively, makes housing stressed more even, prevents housing distortion and fracture, can also improve the good looking appearance degree of housing; In addition, the annular concave-convex structure of housing both sides and wedge shape boss structure can improve the strength and stiffness of housing, prevent the stressed crimp of housing effectively, prolong the service life and the durability of housing, improve the overall performance of product.

Claims

1. steel rope hand traction machine, include housing and be arranged at the interior hand traction device of this housing, it is characterized in that: the head of described housing is circular arc, the both sides of this housing are respectively arranged with an annular concave-convex structure in the position near described head, and the relative both sides of each described annular concave-convex structure are respectively arranged with the wedge shape boss.

2. steel rope hand traction machine according to claim 1, it is characterized in that: described housing includes front side plate and the rear quarter panel that is fastened on one mutually, and described annular concave-convex structure and wedge shape boss are arranged at respectively on the main surface of described front side plate and rear quarter panel.

3. steel rope hand traction machine according to claim 1 and 2, it is characterized in that: described hand traction device includes the support that is placed in the described housing, is provided with in the described support that pine is unloaded handle, the handle that advances, retreats handle and drive the connecting rod mechanism of each handle action.