CN201227796Y - High neck and double-ended box-end wrench - Google Patents

Abstract

The utility model discloses a high-neck double-offset ring spanner, wherein a handle is arranged at the middle part of the ring spanner; two spanners with offsets are arranged at the two ends of the ring spanner; the handle and the two spanners are coupled by the high neck; the vertical plane of the length direction-line of the high neck and the vertical plane of the length direction-line of the handle form a high-neck process angle; the high neck process angle is an acute angle in the value range of 40 to 50 degrees. The high-neck double-offset ring spanner reduces the difficulty of the manufacturing technique, saves raw material, and reduces the manufacturing cost thereupon on the premise that the application and the operation of the handle are not influenced, and the consumption of the raw material can be reduced by 6 to 7 percent compared with the traditional design.

Description

Hub double end double offset ring spanner

Technical field the utility model relates to the spanner of hardware ﹠ tools class, directly relates to the double end double offset ring spanner.

Background technology is in the hardware ﹠ tools industry, and the double end double offset ring spanner has the branch of straight neck, short neck, curved neck, hub.For hub double end double offset ring spanner, generally the angle between the vertical plane of hub length direction line and decreased food direction line is designed to 30 ° on the traditional habit.When this angle during smaller or equal to 30 °, under the certain situation of spanner total length, handle has enough length, and it is comparatively convenient to operate, but realizes that on technology difficulty is big, and raw materials consumption is many, the cost of goods manufactured height; When this angle during greater than 70 °, shape approaches curved neck double end double offset ring spanner and with curved neck double end double offset ring spanner tangible difference is arranged, because the position difference of bending, under the certain situation of spanner total length, the hub of hub double end double offset ring spanner also will occupy certain length dimension, so just have to shorten the length dimension of handle, make troubles for the use operation of instrument.

The summary of the invention the purpose of this utility model will provide a kind of improved hub double end double offset ring spanner exactly, and it can overcome on the technology that exists when existing hub double end double offset ring spanner is designed to 30 ° with the angle between the vertical plane of hub length direction line and decreased food direction line traditionally effectively realizes the drawback that difficulty is big, raw materials consumption is many, cost of goods manufactured is high.

The purpose of this utility model is achieved in that hub double end double offset ring spanner, the centre is a handle, two ends are the spanner of band plum blossom hole, handle is connected by hub with spanner, form the hub process corner between the vertical plane of the length direction line of hub and the length direction line of handle, the span of described hub process corner is 40-50 ° a acute angle.

As further program of the utility model be: the span of described hub process corner is 43-47 ° a acute angle.

As the utility model further scheme be: the span of described hub process corner is 44-46 ° a acute angle.

The utility model is owing to formed 40-50 ° acute angle between the vertical plane of the length direction line of the length direction line of hub and handle, thereby under the prerequisite that does not influence handle use operation, reduce producting process difficulty, saved raw material, also decreased manufacturing cost.Wherein, raw materials consumption can reduce 6-7% than traditional design.

Appended drawings is a structure principle chart of the present utility model, and the utility model is described in further detail below in conjunction with accompanying drawing.

Specific embodiment accompanying drawing shows the structure of the utility model hub double end double offset ring spanner, the centre is a handle 3, two ends are the spanner 1 of band plum blossom hole, handle 3 is connected by hub 2 with spanner 1, form hub process corner α between the vertical plane of the length direction line of hub 2 and the length direction line of handle 3, the span of hub process corner α is 40-50 °, preferred 43-47 °, further preferred 44-46 °, and preferential employing is 45 ° in the production.

Use operation of the present utility model is identical with the hub double end double offset ring spanner of making by traditional design, also has same application scenario simultaneously.

Claims (3)

1, a kind of hub double end double offset ring spanner, the centre is handle (3), two ends are the spanner (1) of band plum blossom hole, handle (3) is connected by hub (2) with spanner (1), form hub process corner (α) between the vertical plane of the length direction line of the length direction line of hub (2) and handle (3), it is characterized in that: the span of described hub process corner (α) is 40-50 ° a acute angle.

2, hub double end double offset ring spanner according to claim 1 is characterized in that: the span of described hub process corner (α) is 43-47 ° a acute angle.

3, hub double end double offset ring spanner according to claim 2 is characterized in that: the span of described hub process corner (α) is 44-46 ° a acute angle.

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