CN2100283U

CN2100283U - High-efficient solid wrench

Info

Publication number: CN2100283U
Application number: CN 91208250
Authority: CN
Inventors: 陈琼
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-05-14
Filing date: 1991-05-14
Publication date: 1992-04-01

Abstract

The utility model discloses a high-efficient solid wrench, which is a hand tool for rotating fastening pieces, such as hexagon screw nuts, etc. The high-efficient solid wrench has no need of repeatedly drawing out and inserting when used. Fastening pieces of outer hexagon, such as screw nuts, etc. Can be quickly rotated in a positive and an opposite directions by a single surface. The whole high-efficient solid wrench is integral, and has no elastic members, movable members or other parts. The high-efficient solid wrench is provided with a head with two ends and a center handle, wherein, one end of the head is provided with an opening; the middle part in a work section is provided with a notch; screw nuts can rotate direction at the upper air of the notch position; the mouth part of the opening is provided with a block for preventing screw nuts taking off; the other end of the head is provided with a geometric shape hole; the geometric shape hole is formed by the screw nuts moving some distances respectively along two adjacent sides. The high-efficient solid wrench has the advantages of solidness, durability and high reliability of an opening inserting type solid wrench and a plum blossom solid wrench.

Description

High-efficient solid wrench

The present invention is a kind of hand-operated tools that is used for securing members such as turn hex nut.

Socket that generally uses or the stiff hand of quincunx need pull and push (cover) wrench, inefficiency repeatedly when the rotation nut at present.The socket type head is bigger, unfavorablely operates in little space.Quincunx is unfavorable to be operated on the long screw rod of axial dimension.Chinese patent 891017526 proposes the oral area physical dimension of a socket type, and stiff hand need not be pulled and pushed repeatedly can forward and reverse rotation nut, but needs an elastic component come back work, and wrench is provided with securing member, elastic component, fragile inefficacy, thus the reliability deficiency.

Task of the present invention is: obtain a kind of no movable part, elastic component, need not to pull and push repeatedly or reverse side just can forward and reverse fast rotational nut, have the stiff hand advantage of socket type and quincunx concurrently, do not damage the high stiff hand of nut corner angle reliability.

Solution of the present invention is: one of stiff hand is socket type, and the other end is a quincunx.Another program of the present invention is: two is the socket type or the quincunx of different size.This socket type be have in the middle and upper part of conventional jack formula opening one side one perpendicular to socket De Change to groove (3) nut can the position of groove Kong Zhuan Change to.The operating position of suitable length (A) as forward and reverse rotation nut left on the groove both sides.On the socket or under the portion of chewing be provided with one section block (4) and can stop that nut deviates from from the portion of chewing.Respectively have a shallow slot (6) at the inside lock place of two active sections (A), can protect the corner angle of nut in the operation perpendicular to opening.The another side of opening is linear or is the garden heart with the intersection point (B) of groove (3) and two stations (A), forms two sections garden arcs (7) on straight line, in order to nut along the position of straight line Zhuan Ru Change to groove (3).Push wrench to nut during the dextrorotation turn nut, remain a thrust during operation.When being rotated counterclockwise nut wrench is pulled out one section nut is leaned against on the block, remain a pulling force during operation.Wrench when backhaul, can deactivate automatically Wei Zhi Change to.Block (4) can make with wrench integral body or with flap elastics or rigid member by technology and the fastening one of wrench such as weldering, riveting, sticking, edge, punching press, screw, magnetic.

The other end of stiff hand is ellipse flat (2), has by this specification nut formed how much shape holes after the adjacent limit (Z) that is mutually hexagonal angle is moved a section outside respectively along its two at the front end of ellipse flat.But the middle part in hole this specifications of nuts Zi by Xuan Zhuan Change to.Hole middle part forms a projecting block (8) and becomes hexagonal angle, and two angle limits are active section, respectively are parallel to relative limit, is slightly larger than the opposite side size of this specification nut with relative edge's distance.Nut enter behind the active section can only folk prescription to rotation, the revolved direction of two active sections is opposite.Method of operating is similar to open type.

Advantage of the present invention is: whole wrench is integrated not to have elastic component, securing member or other part, sturdy and durable, and operation need not to pull and push repeatedly wrench, single face just can forward and reverse quickly and efficiently rotation nut etc. hexagonal fastener.Have the advantage of socket type and the stiff hand of quincunx concurrently, do not damage the corner angle of nut, the reliability height.

Described embodiment illustrates below in conjunction with accompanying drawing:

The wrench left side of accompanying drawing 1 illustrated embodiment is that its A face of socket type is parallel with the R face, be slightly larger than nut hexagon opposite side size apart, be the station of two forward and reverse rotation nuts, an arc notch (3) arranged between two A faces, hex nut can the position of breach (3) Shang Xuan Zhuan Change to.Deviate from from opening part when having one section protrusion block (4) can stop hex nut translation or rotation in the outer end of A face.Two intersection points B with A face and camber breach (3) are that the garden heart is that radius processes 2 sections garden arcs (7) respectively to socket turning point C respectively, help the smooth Kong Zhuan of nut Change to.Two turning points of A face have the corner angle of two shallow slots (6) with the protection nut.Nut shown in the D is in and is rotated counterclockwise the position.Nut shown in the E is in Kong Zhuan Change to the position.Nut is in the position that turns clockwise shown in the F.Camber can be processed in socket bottom 10.Nut opposite side and wrench handle angulation M and common plate palmistry are together.Fig. 1 the right illustrated embodiment head is a flat ellipse type (2), and nut to position H place, moves one section formation two operating position G, K along the Z line outside respectively at its Kong Zhuan Change.With the summit of protruding piece (8) is the garden heart, is that half garden r processes two garden arc P and helps Luo Mu Change to smoothly on two line segment z to the W point.Line segment (11) can be processed into garden arc or other curve.Have two shallow slots (9) in the turning point of protruding piece (8) and help protecting the nut corner angle.

Fig. 2 embodiment changes open type into quincunx.

Fig. 3 embodiment changes quincunx into open type.

Claims

1, a kind of wrench that is used for securing members such as turn hex nut, comprise two ends head and mid-handle, have slotting (cover) mouth in the middle of the head, it is characterized in that: a side at an opening middle part of wrench has a breach (3), hex nut can be in the position of breach (3) overhead conversion to, active section is left on the breach both sides, there is one section block (4) in the opening portion of chewing, the opposite side of opening is a straightway, and the wrench other end has by nut formed how much shape holes after its two the adjacent limits that are mutually hexagonal angle are moved a section outside respectively.

2, wrench according to claim 1 is characterized in that: is that the two garden hearts on straight line have two section concave arc shallow slots with breach (3) with two active section intersection points at the opening head.

3, wrench according to claim 1 is characterized in that: is that the garden heart has two sections concave arc shallow slots at how much shape hole heads on its two opposite side to protrude piece (8) summit.

4, wrench according to claim 1 is characterized in that: prolong opening and chew the block (4) of portion, its end with opposite side is connected as a single entity, leave a breach at the front end in geometry shape holes, other end.