CN2214267Y

CN2214267Y - Ratchet positive and negative stepped box spanner

Info

Publication number: CN2214267Y
Application number: CN 95236184
Authority: CN
Inventors: 赵友才
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-01-28
Filing date: 1995-01-28
Publication date: 1995-12-06
Anticipated expiration: 2005-01-28

Abstract

The utility model discloses a ratchet positive and negative stepped box spanner which has the function of measuring force. The utility model is controlled tightening or loosening by a ratchet wheel and a ratchet; a torque device adopts a bowl-shaped convex-concave wheel structure; the friction force of the torque device is showed on a dial by a pointer. The utility model which can be also used as a torque spanner has the advantages of simple structure, easy manufacturing, convenient operation, etc.

Description

Ratchet positive and negative stepped box spanner

The utility model relates to a kind of box spanner of fastening usefulness, specifically a kind of positive and negative stepping box spanner of ratchet with dynamometry function.

Current, industries such as machinery, railway, automobile making and repairing, all need to tighten or looser a bolt, general traditional adjustable wrench, fork spanner, box spanner, the double offset ring spanner etc. of adopting of its instrument, the patent No. is 91212506.3 the positive and negative stepping box spanner of ratchet, it forms the positive and negative stepping mechanism of ratchet by ratchet, two ratchet shaft and the sleeve square toes that have a two-way gear, though overcome the shortcoming of original spanner, but its complex structure, processing difficulties, and function singleness.

The purpose of this utility model provides a kind of simple in structure, and the positive and negative stepping box spanner of ratchet of dynamometry function is arranged.

The utility model is to realize its goal of the invention by the following technical solutions.The positive and negative stepping box spanner of a kind of ratchet, it comprises sleeve square toes, ratchet, ratchet, handle, oblong shaped cartridge, power twister, and the lower end of ratchet is the sleeve square toes, and the stud bolt that the upper end has an available hand directly to rotate is provided with rectangular teeth in its garden on week; Handle is drilled with a hole from an end of holding, and push rod spring, push rod are housed in the hole successively; Ratchet, ratchet are contained between two blocks of clamping steel plates, and connect together by rivet and handle, and ratchet is installed between ratchet and the push rod, and its pawl withstands on the push rod, and the nearly ratchet of two pawl head rests by the lateral pin location, and can rotate around lateral pin; Power twister is a steel pipe, and an end is dead with the end cap weldering, at end cap one end, a bowl-type cam is arranged in the pipe, and pipe is outer to be sleeve square toes, is fixed with the pointer of indication moment size on the sleeve square toes; Have a usefulness removable pin to be fixed in recessed wheel of bowl-type on the steel pipe under the bowl-type cam, the recessed wheel of bowl-type can move up and down on steel pipe with removable pin; One spring is then arranged, and the other end of spring places on the spring base, and spring base is fixed positioned in the steel pipe by steady pin, and pipe is outer to be sleeve square toes.

The utility model has ideally been realized its goal of the invention owing to adopt technique scheme, have simple in structure, handling ease, easy to use, particularly also can be used as kilogram spanner and use.

Description of drawings:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is the structural representation of power twister 15;

Fig. 4 is recessed 10 the expanded view of taking turns of bowl-type cam 8, bowl-type;

Fig. 5 is the schematic diagram of tup 14;

Fig. 6 is that the A of Fig. 3 is to view;

Fig. 7 is the schematic diagram of ratchet 4;

Fig. 8 is the schematic diagram of oblong shaped cartridge 16.

Embodiment:

Below in conjunction with accompanying drawing the utility model is further described.The positive and negative stepping box spanner of a kind of ratchet, it comprises sleeve square toes, ratchet 7, ratchet 4, handle 9, oblong shaped cartridge 16, power twister 15, the lower end of ratchet 2 is the sleeve square toes, the stud bolt 1 that the upper end has an available hand directly to rotate, be provided with rectangular teeth in its garden on week, the number of rectangular teeth is 10; Handle 9 is drilled with a hole from an end of holding, and push rod spring 11, push rod 6 are housed in the hole successively; Ratchet 2, ratchet 4 are contained between two blocks of clamping steel plates 5, and connect together by rivet 7 and handle 9, and ratchet 4 is installed between ratchet 2 and the push rod 6, and its pawl withstands on the push rod 6, and the nearly ratchet 2 of two pawl head rests by lateral pin 3 location, and can rotate around lateral pin 3; Power twister 15 is a steel pipe, and an end is dead with the end cap weldering, at end cap one end, a bowl-type cam 8 is arranged in the pipe, and pipe is outer to be sleeve square toes, is fixed with the pointer 19 of indication moment size on the sleeve square toes; The bowl-type cam has for 8 times a usefulness removable pin 12 to be fixed in that bowl-type on the steel pipe is recessed takes turns 10, and bowl-type is recessed takes turns 10 and can move up and down on steel pipe with removable pin 12, correspondingly respectively on 10 is provided with 2 teeth recessed wheel of bowl-type cam 8 and bowl-type; One spring 13 is then arranged, and the other end of spring 13 places on the spring base 17, and spring base 17 is fixed positioned in the steel pipe by steady pin 18, and pipe is outer to be sleeve square toes.

During use, adjustable ratchet 4 is controlled and is tightened or unscrew, during as the need dynamometry, can connect power twister 15 by oblong shaped cartridge 16, when turning handle 9, bowl-type cam 8 and bowl-type be recessed takes turns 10 a frictional force, and indicates on indicating dial by pointer 19, change spring, can regulate the size of frictional force.

In addition, the utility model connects a tup 14 on the sleeve square toes of ratchet 2, also can be used as hammer and uses.

Claims

1, the positive and negative stepping box spanner of a kind of ratchet, it comprises sleeve square toes, ratchet [2], ratchet [4], handle [9], oblong shaped cartridge [16], power twister [15], it is characterized in that:

The lower end of a, ratchet [2] is the sleeve square toes, and the stud bolt [1] that the upper end has an available hand directly to rotate is provided with rectangular teeth in its garden on week; Handle [9] is drilled with a hole from an end of holding, and push rod spring [11], push rod [6] are housed in the hole successively; Ratchet [2], ratchet [4] are contained between two blocks of clamping steel plates [5], and connect together by rivet [7] and handle [9], and ratchet [4] is installed between ratchet [2] and the push rod [6], its pawl withstands on the push rod [6], the nearly ratchets of two pawl head rests [2] by lateral pin [3] location, and can rotate around lateral pin [3];

B, power twister [15] are a steel pipe, and an end is dead with the end cap weldering, at end cap one end, a bowl-type cam [8] is arranged in the pipe, and pipe is outer to be sleeve square toes, are fixed with the pointer [19] of indication moment size on the sleeve square toes; Have a usefulness removable pin [12] to be fixed in recessed wheel of bowl-type [10] on the steel pipe under the bowl-type cam [8], bowl-type is recessed takes turns [10] and can move up and down on steel pipe with removable pin [12]; One spring [13] is then arranged, and the other end of spring [13] places on the spring base [17], and spring base [17] is fixed positioned in the steel pipe by steady pin [18], and pipe is outer to be sleeve square toes.

2, the positive and negative stepping box spanner of a kind of ratchet according to claim 1 is characterized in that the circumference of ratchet ［ 2 ］ is provided with 6～60 rectangular teeths.

3, the positive and negative stepping box spanner of a kind of ratchet according to claim 1 is characterized in that bowl-type cam ［ 8 ］, bowl-type is recessed takes turns the corresponding respectively 2-6 of being provided with tooth on ［ 10 ］.