CN103659633A

CN103659633A - Clamp

Info

Publication number: CN103659633A
Application number: CN201310616745.6A
Authority: CN
Inventors: 黄鸿春
Original assignee: CHENGDU SI RUI TE CARBIDE KNIVES Co Ltd
Current assignee: CHENGDU SI RUI TE CARBIDE KNIVES Co Ltd
Priority date: 2013-11-29
Filing date: 2013-11-29
Publication date: 2014-03-26

Abstract

The invention discloses a clamp comprising a stable arm having a finger grip and a moving clamp arm having a ratchet fastening wrench handle. The stable arm is sleeved with the clamp arm which can slide along the stable arm. The outer wall of one end of the stable arm is provided with a concave cavity holding a spring. One end of the spring is fixed to the bottom face of the cavity, and the other end of the spring is connected with a projection. One end of the projection is disposed in the cavity, and the other end of the projection projects out of the stable arm. The clamp arm is blocked by the projection, so that the clamp arm is prevented from dropping from the stable arm; meanwhile, the height of the clamp arm is variable, the clamp arm can be pressed down as required, and efficiency is improved.

Description

A kind of clamp

Technical field

The present invention relates to a kind of clamp, belong to mechanical field.

Background technology

Clamp is a kind of for clamping, fastening, or the instrument of lifting, be widely used in metallurgy, transportation, railway, harbour, etc. industry.Ratchet, is defined as the wheel with toothed surfaces or friction surface, by ratchet, promoted to make step motion, similar gear, coordinate, control the part that dialer converts with dialer.When in traditional ratchet type pinching tools, clamp arm moves on the arm of stability, it is mobile that the arm of stability is that smooth surface could facilitate, due to careless manipulation or mobile range too large, easily cause clamp arm to come off from the arm of stability, caused clamp to work, impact is used.

Summary of the invention

The object of the invention is to overcome above-mentioned existing clamp due to careless manipulation or mobile range too large, the problem that easily causes clamp arm to come off from the arm of stability, designed a kind of clamp, this clamp blocks clamp arm by boss is set, and avoids clamp arm to come off from the arm of stability.

Object of the present invention is achieved through the following technical solutions: a kind of clamp, comprise have finger hold for the arm of stability and there is the mobile clamp arm of ratchet spanner handle, clamp arm is linked on the arm of stability and can slides along the arm of stability, the termination outer wall indent of the described arm of stability forms groove, in groove, be provided with spring, the bottom surface of spring one end and groove is fixed, and the other end is connected with boss, boss one end is arranged in groove, and the other end protrudes the outside that is arranged on the arm of stability.Mobile clamp arm, ratchet spanner handle and the arm of stability are existing structure, the boss that the technical program connects by spring is set at arm of stability termination outer wall, utilize the flexible of spring, the height of boss can be controlled, at the normal morphology lower convex platform of spring, can block the slip of clamp arm, clamp arm can not come off from the arm of stability, and need to change clamp arm time, only need firmly to press lower convex platform, spring contraction, boss is pressed in groove, and clamp arm just can shift out from the arm of stability.

The arm of stability is for being F type, and the arm of stability is provided with hold-down head away from one end of groove, is provided with screwed hole on hold-down head, and the diameter of screwed hole is 10mm.

Ratchet spanner handle is provided with rotary head near one end of hold-down head, rotary head is linked on the outer wall of ratchet spanner handle, on ratchet spanner handle, be provided with bearing pin, bearing pin is simultaneously through ratchet spanner handle and rotary head, and rotary head can rotate around bearing pin.

On rotary head, be provided with installing hole, and the axis of installing hole and the axis of screwed hole parallel.

Mobile clamp arm is connected with the termination of ratchet spanner handle through after rotary head away from one end of the arm of stability.

In sum, the invention has the beneficial effects as follows: this clamp blocks clamp arm by boss is set, and avoids clamp arm to come off from the arm of stability, clamp holder can carry out the change of height simultaneously, can when needs are changed clamp arm, press, and has improved efficiency.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

Mark and corresponding parts title in accompanying drawing: 1-boss; 2-arm of stability; 3-clamp arm; 4-screwed hole; 5-hold-down head; 6-installing hole; 7-rotary head; 8-ratchet spanner handle.

The specific embodiment

Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited only to this.

Embodiment 1:

As shown in Figure 1, a kind of clamp, comprise have finger hold for the arm of stability 2 and there is the mobile clamp arm 3 of ratchet spanner handle 8, clamp arm 3 is linked on the arm of stability 2 and can slides along the arm of stability 2, and the termination outer wall indent of the described arm of stability 2 forms groove, is provided with spring in groove, the bottom surface of spring one end and groove is fixed, the other end is connected with boss 1, and boss 1 one end is arranged in groove, and the other end protrudes the outside that is arranged on the arm of stability 2.Spring in groove is blocked by boss 1 in Fig. 1, utilize the structure that boss protrudes to block clamp arm 3 in the slip of the arm of stability 2 terminations, as stroke dog, use, prevent due to careless manipulation or mobile range is too large etc. that reason causes clamp arm 3 from the arm of stability 2 landings, when needs are changed clamp arm 3, only need firmly press lower convex platform 1, make spring-compressed, boss is trapped in groove completely, and clamp arm 3 can pass through from groove top, and clamp arm 3 just can shift out from the arm of stability 2.

The arm of stability 2 is for being F type, and the arm of stability 2 is provided with hold-down head 5 away from one end of groove, is provided with screwed hole 4 on hold-down head 5, and the diameter of screwed hole 4 is 10mm.Under normal use, hold-down head 5 just can contact compression to parts, and some special parts are due to the reason of structure or size, hold-down head can not directly directly contact with parts, by screwed hole 4 installation accessories that arrange, as extending column, according to the size of wire clamp, the screwed hole 4 of 10mm is maximum opening diameter, surpass this diameter, just the overall structure of hold-down head 5 is damaged, during wire clamp work, easily have the destruction of internal structure.

Ratchet spanner handle 8 is provided with rotary head 7 near one end of hold-down head 5, rotary head 7 is linked on the outer wall of ratchet spanner handle 8, on ratchet spanner handle 8, be provided with bearing pin, bearing pin is simultaneously through ratchet spanner handle 8 and rotary head 7, and rotary head 7 can rotate around bearing pin; On rotary head 7, be provided with installing hole 6, and the axis of installing hole 6 is parallel with the axis of screwed hole 4; Mobile clamp arm 3 is connected with the termination of ratchet spanner handle 8 through rotary head 7 is rear away from one end of the arm of stability 2.Rotary head 7 is existing structure, and installing hole 6 is set on rotary head, is to cooperatively interact with screwed hole 4, carrys out installation accessories, as V-type presser feet, the parts of some special constructions or size is contacted to use.

Take aforesaid way, just can realize preferably the present invention.

Claims

1. a clamp, comprise have finger hold for the arm of stability (2) and there is the mobile clamp arm (3) of ratchet spanner handle (8), clamp arm (3) is linked in the arm of stability (2) above and can slides along the arm of stability (2), it is characterized in that: the termination outer wall indent of the described arm of stability (2) forms groove, in groove, be provided with spring, the bottom surface of spring one end and groove is fixed, the other end is connected with boss (1), boss (1) one end is arranged in groove, and the other end protrudes the outside that is arranged on the arm of stability (2).

2. a kind of clamp according to claim 1, it is characterized in that: the described arm of stability (2) is for being F type, the arm of stability (2) is provided with hold-down head (5) away from one end of groove, is provided with screwed hole (4) on hold-down head (5), and the diameter of screwed hole (4) is 10mm.

3. a kind of clamp according to claim 2, it is characterized in that: described ratchet spanner handle (8) is provided with rotary head (7) near one end of hold-down head (5), rotary head (7) is linked on the outer wall of ratchet spanner handle (8), on ratchet spanner handle (8), be provided with bearing pin, bearing pin is simultaneously through ratchet spanner handle (8) and rotary head (7), and rotary head (7) can rotate around bearing pin.

4. a kind of clamp according to claim 3, is characterized in that: on described rotary head (7), be provided with installing hole (6), and the axis of installing hole (6) is parallel with the axis of screwed hole (4).

5. a kind of clamp according to claim 3, is characterized in that: described mobile clamp arm (3) is connected with the termination of ratchet spanner handle (8) through after rotary head (7) away from one end of the arm of stability (2).