CN2051546U - Adjustable spanner with angular slot at its jaw opening - Google Patents

Abstract

The utility model belongs to an adjustable spanner with an angular slot at jaw opening, which is characterized in that an angular slot is added between two parallel gripping surfaces of the jaw opening. The grip of two surfaces is changed to the grip of four surfaces; the grip is reliable; the loaded and unloaded part is forced from four surfaces, and the external surface of the gripped part is uneasy to damage. The different advantages of the utility model can be displayed along with the different position of the added angular slot and the different shape of the angular slot surface. The functions of the existing adjustable spanners are retained. The gripping surface added with the jagged angular slot can be suitable for loading and unloading cylindrical fasteners. In the gripping surface and the 120 DEG angular slot, the angular slot also has the function of a socket spanner along the lengthways direction of a handle.

Description

Adjustable spanner with angular slot at its jaw opening

The utility model belongs to adjustable wrench.

Existing adjustable wrench pulls lip by living, fixedly pull lip, worm screw, handle, spanner matrix forms.Fixedly pull lip and spanner matrix and handle and be integral, living in pulling lip and fixedly pull lip respectively has a plane, and they are parallel to each other to be the clamping face of adjustable wrench.This two clamping face and adjacent angle are the mouth of pulling that adjustable wrenches are formed in two bottom surfaces of 120 degree, the finger rotary worm, drive to live and to pull lip and move and just can regulate the size of pulling mouthful,, be applicable to that the loading and unloading of Mechanical Help, component of machine and family use to pull the different hexagonal of size, four angle head securing members.It is a kind of widely used hand tools.Weak point is clamping from the side, be only limited to loading and unloading hexagonal, tetragonal nut or bolt, and in operating process, hex nut breaks away from two bottom surfaces of pulling mouth pulling slip between mouthful clamping face easily, therefore, hex nut is by four sides contact becoming two sides contact, and the two sides is stressed, damages hex nut, bolt exterior angle when the power of pulling is big easily.

The purpose of this utility model is for the deficiency that overcomes above-mentioned existing adjustable wrench, enlarges its range of application, provides clamping reliable adjustable wrench.

The utility model is achieved in that the shape that changes clamping face, adds chamfered groove with two parallel clamping faces of Flexible spanner lip fixedly pulling lip, and when two parallel clamping faces contacted with each other, chamfered groove was symmetrical in parallel clamping face.So just increased clamping face.Be held part and be stressed everywhere, clamping reliable, be not easy damage is held the part outer surface.Difference according to the shape of the position of adding chamfered groove, quantity, chamfered groove face can demonstrate various advantage of the present utility model.And the parallel clamping face with two in bottom surface of pulling mouth is vertical, has increased the stability and the intensity of living and pulling lip.

Below in conjunction with embodiment and description of drawings various concrete structures of the present utility model and advantage thereof.

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

Among the figure: (1) be live pull lip, (2), (6) be 120 degree chamfered grooves, (3), (5) be parallel clamping face, (4) be pull mouthful, (7) be fixedly pull lip, (8) be pull a mouthful bottom surface, (9) are that spanner matrix, (10) they are that worm screw, (11) they are handles.

Present embodiment is respectively to add one 120 in two parallel clamping faces (3) of existing adjustable wrench and (5) to spend chamfered groove (2), (6), and two chamfered grooves are relative, and perpendicular to the plane of symmetry of adjustable wrench.When the nut of pulling stubborn tension, being difficult to dismantle, usefulness chamfered groove (2) and (6) clamping hex nut, bolt just demonstrate clamping and reliably, do not damage the advantage that is held the part exterior angle, and be loosening back with two parallel clamping faces (3) and (5) clamping.

The optimum position of present embodiment chamfered groove (2), (6) is that the intersection of chamfered groove (2), (6) is 1/3rd of parallel clamping face (3), (5) vertical length apart from the distance of pulling a mouthful bottom surface (8).

Fig. 2 is the front view of the utility model embodiment 2.

Among the figure: (12) are to live that to pull lip, (13), (17) be the zigzag chamfered groove, and (14), (16) are parallel clamping faces, and (15) are to pull mouth, and (18) are fixedly to pull lip.

Present embodiment is respectively to add a chamfered groove (13), (17) in two parallel clamping faces (14), (16) of existing adjustable wrench, and two faces forming chamfered groove are zigzag, and their angle is between 90 degree are spent to 120.Two chamfered grooves (13), (17) are corresponding, perpendicular to the plane of symmetry of adjustable wrench, and the cylindrical securing member of clamping, reliable, convenient, be not easy damage and be held part.Owing to adopt said structure, kept the function of existing adjustable wrench, and the range of application of adjustable wrench has been expanded to cylindrical securing member.

Fig. 3 is the front view of the utility model embodiment 3.

Present embodiment is respectively to add one 120 at the two parallel clamping faces that have adjustable wrench now to spend outside chamfered groove (20), (21), adds a zigzag chamfered groove (19), (22) respectively again at two clamping faces, and present embodiment has the advantage of embodiment 1 and embodiment 2 concurrently.

Fig. 4 is the front view of embodiment 4.

Fig. 5 is the vertical view of Fig. 4 embodiment 4.

Present embodiment pulls lip (23) by living, fixedly pull lip (27), spanner matrix (28), worm screw (29), handle (30) forms, feature is to live that to pull the clamping face (33) of lip (23) parallel to each other with the clamping face (34) of fixedly pulling lip (27), and the bottom surface (32) of pulling mouth (25) and clamping face (33), (34) are vertical.The symmetrical ordinate of handle (30) and clamping face (33), (34) are parallel, succeed Gui 4 from pulling mouthful (25) mu), (26) have 120 degree chamfered grooves (35), (37) in clamping face (33), (34), the intersection of two chamfered grooves is with to pull a mouthful bottom surface (32) vertical, and along the longitudinal direction of handle (30).Chamfered groove (35) is corresponding with chamfered groove (37), and their four clamping face clamping hex nuts (36) are regulated the big I of pulling mouthful (25) and adapted to hex nut or the bolt that varies in size.

Owing to adopt said structure, except resembling existing adjustable wrench with two parallel clamping faces (33) and (37) clamping hexagonal, tetragonal nut or the hex bolts, also available 120 degree chamfered grooves (35) and (37) are along the axial clamping hex nut of hex nut.One hand-held handle, the pole that another hand-screw changes in the patchhole (31) loads and unloads.In the occasion of spanner matrix (28) energy axial rotation, present embodiment also has the function of box spanner concurrently, and the turn status is narrow and small, the hex nut in groove or recessed place or hex bolts, and for easy to operate, the cross section of handle (30) is circular.

Fig. 6 is the front view of the utility model embodiment 5.

Fig. 7 is the vertical view of embodiment 5.

The handle of present embodiment (38) bends to the right angle, without the pole direct control.

Claims (7)

1, a kind of adjustable wrench, pull lip by living, fixedly to pull lip, spanner matrix, worm screw and handle and form, fixedly pulling lip, handle and spanner matrix is integral, the clamping face of fixedly pulling lip is relative and parallel to each other with the clamping face of Flexible spanner lip, it is characterized in that: two parallel clamping faces that a pulls mouthful are with to pull mouthful bottom surface vertical, b has chamfered groove on two parallel clamping faces, when two parallel clamping faces contacted with each other, chamfered groove was symmetrical in clamping face.

2, according to the adjustable wrench of claim 1, it is characterized in that one 120 degree groove respectively being arranged at two parallel clamping faces, the direction of two chamfered grooves is perpendicular to the plane of symmetry of adjustable wrench.

3, according to claim 1,2 adjustable wrench, the intersection that it is characterized in that chamfered groove apart from the distance of pulling mouthful bottom surface be parallel clamping face vertically long 1/3rd.

4, according to the adjustable wrench of claim 1, it is characterized in that at two parallel clamping faces an angle being arranged respectively is chamfered groove between 90 to 120 degree, two faces forming chamfered groove are zigzag, two chamfered grooves are perpendicular to the plane of symmetry of adjustable wrench.

5,, it is characterized in that at two parallel clamping faces be jagged chamfered groove by one 120 degree chamfered groove and two faces forming the angle all according to claim 1,2,4 adjustable wrench.

6, according to the adjustable wrench of claim 1, it is characterized in that two parallel clamping faces and handle symmetry ordinate is parallel, at two parallel clamping faces one 120 degree chamfered groove is arranged all, the direction of two chamfered grooves along handle vertically, chamfered groove with pull a mouthful end face and communicate.

7, according to claim 1,5 adjustable wrenches that require, it is characterized in that the curved handle of spanner meets at right angles.

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