CN201856197U

CN201856197U - Ratchet wrench

Info

Publication number: CN201856197U
Application number: CN2010206150921U
Authority: CN
Inventors: 刘莉; 刘俊; 谢石良
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-11-17
Filing date: 2010-11-17
Publication date: 2011-06-08
Anticipated expiration: 2020-11-17

Abstract

The utility model provides a ratchet wrench, which comprises a wrench handle 2, a wrench body 1, a shaft 5, a transmission part 8 and a spring 12. A combining hole 3 is arranged on the wrench body 1, the shaft 5 is mounted in the combining hole 3, a sliding guide groove 6 and sliding guide teeth 7 are arranged on the inner wall of the combining hole 3 of the body or on the outer wall of the shaft 5, the transmission part 8 is provided with slide teeth 9 and a slide slot 10 and sleeved on the shaft 5, and second ratchets 11 arranged on the periphery of the transmission part 8 correspondingly mesh with first ratchets on the combining hole 3 or the shaft 5. The wrench is capable of bearing large-torque output through complete meshing of the ratchets; and by means of matching of sliding guide structures arranged on the wrench body, the transmission part or the shaft, the wrench structure is light and thin while connection tightness of a socket, a square joint and the like cannot be affected. In addition, the ratchet wrench has the advantages of simple and light structure, high torque bearing capacity, low cost, wide applicable range and long service life.

Description

Ratchet spanner

One, technical field

The utility model relates to a kind of ratchet spanner, relates in particular to a kind of big torsion ratchet spanner.

Two, background technology

Present known ratchet spanner is mostly by ratchet ratchet and the clamping piece ratchet engagement outputting torsion by the minority ratchet, along with the wearing and tearing and can't bear torsion largely easily of the passing ratchet of service time.At Chinese utility model patent ZL 200420069864.0 disclosed big torsion speeder wrenches, this utility model ratchet spanner of having determined really bears this problem on the one hand of big torsion.Can't use at narrow space but this ratchet structure is thicker, its driving member bevel gear and driving member main shaft are made one, the driving member ratchet do with the wrench body ratchet separate, axial displacement takes place in the driving member main shaft thereupon in the gear motion process, this just has influence in the driving member main shaft is the square tenon of one and the compactness of sleeve socket, has limited the scope of application of this big torsion speeder wrench to a certain extent.

Three, summary of the invention

In order to solve the defective of the thicker and driving member main shaft of above-mentioned big torsion speeder wrench structure with the compactness between the driving member bevel gear jumping effect connector, the purpose of this utility model provide a kind of simple in structure, frivolous, can bear that high pulling torque, cost are low, the ratchet spanner of long service life.

In order to achieve the above object, the utility model adopts following two kinds of organization plans to realize:

The ratchet spanner of first kind of structure of the present utility model comprises spanner handle and the wrench body that is connected with spanner handle, axle part, driving member, spring; It is characterized in that being provided with a combined hole, be provided with first ratchet at the inwall of combined hole in wrench body; The axle part is contained in the combined hole, is provided with guide runner and slide guide tooth at the outer wall of axle spare; Driving member is enclosed within on the part, the inwall of driving member be provided with the corresponding slip teeth of coincideing of guide runner of axle part and with the corresponding identical chute of slide guide tooth of axle spare, on driving member, also be provided with second ratchet with the corresponding engagement of first ratchet of wrench body; On the axle part of described spring encapsulation in combined hole.

In the ratchet spanner of above-mentioned first kind of structure, driving member is to be to cooperate by guide runner and slide guide tooth to realize slide guide, interlock effect with axle spare, avoids a part in ratchet engagement, be subjected to displacement when separating.As required, also axle spare outer wall can be made hexagon, make a part be shaped to hex-shaped shaft, the inwall of the driving member that cooperates is with it made the corresponding hexagon that coincide with axis body, a driving member and a part are connected by hexagon.

The ratchet spanner of second kind of structure of the present utility model comprises spanner handle and the wrench body that is connected with spanner handle, axle part, driving member, spring; It is characterized in that being provided with a combined hole, be provided with guide runner and slide guide tooth at the inwall of combined hole in wrench body; The axle part is contained in the combined hole, is provided with first ratchet at axle spare outer wall; Driving member is enclosed within on the part, the driving member outer wall be provided with wrench body the corresponding slip teeth of coincideing of guide runner and with the corresponding chute that coincide of slide guide tooth of wrench body, on driving member, be equipped with second ratchet with the corresponding engagement of first ratchet of a part; On the axle part of described spring encapsulation in combined hole.

In the ratchet spanner of above-mentioned second kind of structure, driving member is to cooperate the realization slide guide, be connected by guide runner and slide guide tooth with being connected of wrench body combined hole.As required, also the inwall of wrench body combined hole can be made as hexagon, the driving member outer wall that cooperates with it is made as the corresponding hexagon that coincide with the combined hole inwall, it is connected mutually.

In the ratchet spanner of above-mentioned two kinds of organization plans, the combined hole of described wrench body is equipped with draw-in groove, and the upper limb of axle part is provided with a baffle ring and a holding firmware to be sticked in this draw-in groove, and a part inlay card is fixedly arranged in the combined hole; In order to make the utility model be applicable to narrow space, be provided with a square fourth of the twelve Earthly Branches interface that runs through wherein at the center of axle spare; Described wrench body and spanner handle are to be connected or fixedly connected by turning joint.

Ratchet spanner of the present utility model, have simple in structure, frivolous, can bear that high pulling torque, cost are low, the advantage of long service life.

Four, description of drawings

Fig. 1 is the ratchet spanner decomposing schematic representation of first kind of structure of the utility model;

Fig. 2 is the cutaway view of the ratchet spanner of first kind of structure of the utility model;

Fig. 3 is the ratchet spanner decomposing schematic representation of second kind of structure of the utility model;

Fig. 4 is the cutaway view of second kind of ratchet spanner of the utility model.

Among the figure, the 1st, wrench body, the 2nd, spanner handle, the 3rd, combined hole, 4 is first ratchets, the 5th, a part, the 6th, guide runner, the 7th, slide guide tooth, the 8th, driving member, the 9th, slip teeth, the 10th, chute, 11 is second ratchets, the 12nd, spring, the 13rd, draw-in groove, the 14th, baffle ring, the 15th, holding firmware, the 16th, square fourth of the twelve Earthly Branches interface, 17 is first ratchet and the second ratchet engagement face.

Five, the specific embodiment

Further specify embodiment of the present utility model below in conjunction with accompanying drawing:

Embodiment one:

Referring to accompanying

drawing

1,2, at the ratchet spanner of present embodiment, comprise spanner handle 2 and the wrench body 1 that is connected with spanner handle, axle part 5, driving member 8, spring 12; Described wrench body 1 is made one with spanner handle 2, is provided with a combined hole 3 in wrench body 1, is equipped with first ratchet 4 at the inwall of combined hole 3; Axle part 5 is contained in the combined hole 3, is provided with guide runner 6 and slide guide tooth 7 at the outer wall of axle spare 5, respectively guide runner 6 bottoms and slide guide tooth 7 tops is made as arc to reduce force of sliding friction; Driving member 8 is enclosed within on the part 5, the inwall of driving member 8 be provided with the guide runner 6 corresponding slip teeth 9 of coincideing of axle part 5 and with the slide guide tooth 7 corresponding identical chutes 10 of axle spare 5, to play slide guide, interlock effect, driving member is slided on axle spare when ratchet engagement, separation, and axle spare 5 is beated thereupon when having avoided spanner idle running; On driving member 8, be equipped with second ratchet 11 with first ratchet, the 4 corresponding engagements of wrench body 1; Described spring 12 is taper, and on the axle part 5 of spring 12 encapsulations in combined hole 3, axle part 5 two ends can supply sleeve and square joggle combination.

Combined hole 3 in wrench body 1 is equipped with draw-in groove 13, and the upper limb of axle part 5 is provided with a baffle ring 14 and C shape holding firmware 15 to be sticked in this draw-in groove 13, volute spring 12 is installed between baffle ring 14 and driving member 8, and axle part 5 inlay cards that will be arranged with driving member 8 and volute spring 12 are fixedly arranged in the combined hole 3; In order to make the utility model be applicable to narrow space, be provided with a square fourth of the twelve Earthly Branches interface 16 that runs through wherein at axle spare 5 centers.

In the ratchet spanner structure of present embodiment, driving member 8 is to cooperate with axle spare 5 to realize slide guide, interlock effect, has avoided axle part 5 to be subjected to displacement when ratchet engagement, separation.

Embodiment two:

In the foregoing description one, driving member 8 is to cooperate with axle spare 5 to realize slide guide, interlock effect, has avoided axle part 5 to be subjected to displacement when ratchet engagement, separation, compares with the foregoing description one, the present embodiment difference is that driving member 8 is to cooperate with wrench body 1 to realize slide guide, interlock effect.

See also Fig. 3,4, the ratchet spanner of present embodiment comprises spanner handle 2 and the wrench body 1 that is connected with spanner handle, axle part 5, driving member 8, spring 12; Be provided with a combined hole 3 in wrench body 1, be provided with guide runner 6 and slide guide tooth 7 at the inwall of combined hole 3; Axle part 5 is contained in the combined hole 3, is provided with first ratchet 4 at axle spare 5 outer walls; Driving member 8 is enclosed within on the part 5, driving member 8 outer walls be provided with the corresponding slip teeth 9 of coincideing of guide runner 6 of wrench body 1 and with the slide guide tooth 7 corresponding chutes 10 that coincide of wrench body 1, on driving member 8, be equipped with second ratchet 11 with first ratchet, the 4 corresponding engagements of a part 5; On the axle part 5 of described spring 12 encapsulations in combined hole 3.

Claims

1. a ratchet spanner comprises spanner handle (2) and the wrench body that is connected with spanner handle (1), axle part (5), driving member (8), spring (12); It is characterized in that being provided with a combined hole (3), be equipped with first ratchet (4) at the inwall of combined hole (3) in wrench body (1); Axle part (5) is contained in the combined hole (3), is provided with guide runner (6) and slide guide tooth (7) at the outer wall of axle spare (5); Driving member (8) is enclosed within on the part (5), the inwall of driving member (8) be provided with the corresponding slip teeth (9) of coincideing of guide runner (6) of axle part (5) and with the corresponding identical chute (10) of slide guide tooth (7) of axle spare (5), on driving member (8), be equipped with second ratchet (11) with the corresponding engagement of first ratchet (4) of wrench body (1); On the axle part (5) of described spring (12) encapsulation in combined hole (3).

2. according to the described ratchet spanner of claim 1, it is characterized in that: the combined hole of described wrench body (3) is equipped with draw-in groove (13), and the upper limb of axle part (5) is provided with a baffle ring (14) and a holding firmware (15) to be sticked in this draw-in groove (13), and a part (5) inlay card is fixedly arranged in the combined hole (3).

3. according to claim 1 or 2 described ratchet spanneres, it is characterized in that the center of described axle part (5) is provided with a square fourth of the twelve Earthly Branches interface (16) that runs through wherein.

4. a ratchet spanner comprises spanner handle (2) and the wrench body that is connected with spanner handle (1), axle part (5), driving member (8), spring (12); It is characterized in that being provided with a combined hole (3), be provided with guide runner (6) and slide guide tooth (7) at the inwall of combined hole (3) in wrench body (1); Axle part (5) is contained in the combined hole (3), is provided with first ratchet (4) at axle spare (5) outer wall; Driving member (8) is enclosed within on the part (5), driving member (8) outer wall be provided with wrench body (1) the corresponding slip teeth (9) of coincideing of guide runner (6) and with the corresponding chute (10) that coincide of slide guide tooth (7) of wrench body (1), on driving member (8), be equipped with and second ratchet (11) of the corresponding engagement of first ratchet (4) of a part (5); On the axle part (5) of described spring (12) encapsulation in combined hole (3).

5. according to the described ratchet spanner of claim 4, it is characterized in that: the combined hole of described wrench body (3) is equipped with draw-in groove (13), and the upper limb of axle part (5) is provided with a baffle ring (14) and a holding firmware (15) to be sticked in this draw-in groove (13), and a part (5) inlay card is fixedly arranged in the combined hole (3).

6. according to claim 4 or 5 described ratchet spanneres, it is characterized in that the center of described axle part (5) is provided with a square fourth of the twelve Earthly Branches interface (16) that runs through wherein.