CN104827411A

CN104827411A - Tool clamp

Info

Publication number: CN104827411A
Application number: CN201510109447.7A
Authority: CN
Inventors: 宋天顺
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-03-13
Filing date: 2015-03-13
Publication date: 2015-08-12

Abstract

A tool clamp is composed of a first clamp body, a second clamp body, and a clamp shaft. The tool clamp is mainly made of iron or iron alloy. The existing tool clamp rusts easily after immersed in water or exposed to moisture for a long time, and therefore, the using performance is affected. According to the invention, at least one small space is arranged among the clamp shaft and the first and second clamp bodies around the clamp shaft. The rotary contact surfaces between the second clamp body and the clamp shaft and between the second clamp body and the first clamp body are respectively communicated with at least one small space. The relatively-sealed small spaces are filled with graphite. During use, graphite gradually spreads to the entire rotary contact surfaces through contact with the rotary contact surfaces. As graphite has good anti-rust and lubrication functions, the rotary contact surfaces between the second clamp body and the clamp shaft and between the second clamp body and the first clamp body are not easy to rust. The tool clamp can be kept in a good using state for a long time.

Description

A kind of tool tong

Art

The present invention relates to a kind of instrument, especially it rotates contact surface and not easily gets rusty and a kind of tool tong that can use flexibly for a long time.

Background technology

At present, the tool tongs such as known cutting pliers, nipper plier and diagonal cutting pliers are made up of the first caliper (be fixed with the caliper of pincers axle but do not comprise pincers axle), the second caliper (being enclosed within rotating caliper on pincers axle) and pincers axle, and its main material is generally iron or ferroalloy.The tool tong of iron or ferroalloy is flooded or is long placed in malaria when using, and the second caliper and the rotation contact surface clamped between axle, the first caliper get rusty easily, thus causes tool tong rotate dumb and affect use, and rust extremely can not be used again completely sometimes.

Summary of the invention

Be flooded or be long placed in and easily become rusty in humidity place in order to overcome existing tool tong and affect the deficiency of use, the invention provides a kind of tool tong, it can prevent the second caliper and the rotation contact surface clamped between axle, the first caliper from getting rusty well, thus can keep good using state for a long time.

The technical solution adopted for the present invention to solve the technical problems is: in pincers axle and pincers first and second caliper axial, arrange at least one little space, second caliper is at least connected with a little space respectively with the rotation contact surface between pincers axle, the first caliper, and the little space of opposing seal is built with graphite.Like this, when the second caliper rotates around pincers axle relative to the first caliper, graphite diffuses to whole rotation contact surface gradually by itself and the contact of rotating contact surface.Because graphite has good antirust and lubrication, therefore the second caliper and the rotation contact surface clamped between axle, the first caliper not easily get rusty, and the present invention can keep rotating flexibly for a long time.

The invention has the beneficial effects as follows, can prevent the second caliper and the rotation contact surface clamped between axle, the first caliper from getting rusty well, thus good using state can be kept for a long time.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the invention will be further described.

Accompanying drawing is one embodiment of the invention.

In figure, 1. the first caliper, 2. the second caliper, 3. clamp axle, 4. the second caliper centre bore, 5. the first caliper centre bore, 6. small sircle hole, 7. graphite.

Detailed description of the invention

In the drawings, first, the first caliper 1, second caliper 2 and pincers each one of axle 3 is made with iron or ferroalloy.Small sircle hole 6 is bored in centre position on pincers axle 3 height, and the diameter of small sircle hole 6 is 0.25 to 0.4 times of pincers axle 3 height, and when its inwall does Quenching Treatment to prevent from pressing pincers axle 3, small sircle hole 6 is out of shape.Then, pincers axle 3 is fixed in the first caliper centre bore 5 in the state of tool tong left and right centre symmetry line by the central axis of small sircle hole 6.Before being fixed to by pincers axle 3 in first caliper centre bore 5, first caliper 1 annular at the small sircle hole 6 both ends open place after pincers axle 3 is fixing rotates the contact surface rib chamfering crossing with the first caliper centre bore 5.In the section of A-A (2: 1), the section place upper-lower height of chamfering equals the radius of small sircle hole 6, the section place left and right width of chamfering is 0.5 to 0.7 times that the first caliper 1 annular rotates interface width, and chamfering equals the diameter of small sircle hole 6 perpendicular to the front and back width of section.

Then, the rotation contact surface between the second caliper 2 and pincers axle 3, first caliper 1 is applied graphite linings, and the chamfering of small sircle hole 6 and small sircle hole 6 two ends first caliper 1 is filled graphite 7, and graphite 7 is generally graininess, and its granularity is 200 to 1000 microns.Finally, then the second caliper centre bore 4 be enclosed within to press with the first caliper 1 after on pincers axle 3 together with and energy flexible rotating; Like this, two chamferings of small sircle hole 6 and small sircle hole 6 two ends first caliper 1 just define the little space of an opposing seal, and this little space is communicated with the rotation contact surface between the second caliper 2 and pincers axle 3, first caliper 1 simultaneously; And the graphite 7 in it can not be scattered out.While second caliper 2 rotates relative to the first caliper 1 around pincers axle 3 and uses, graphite 7 diffuses to whole rotation contact surface gradually by itself and the contact of rotating contact surface; Therefore the rotation contact surface between the second caliper 2 and pincers axle 3, first caliper 1 not easily gets rusty, the present invention can keep good using state for a long time.

Claims

1. a tool tong, be made up of the first caliper, the second caliper and pincers axle, it is characterized in that: in pincers axle and pincers first and second caliper axial, at least one little space is set, second caliper is at least connected with a little space respectively with the rotation contact surface between pincers axle, the first caliper, and little space is built with graphite.

2. a kind of tool tong according to claim 1, is characterized in that: little space is made up of two chamferings on a small sircle hole and small sircle hole both ends open place first caliper.

3. a kind of tool tong according to claim 1, is characterized in that: graphite is graphite granule.

4. a kind of tool tong according to claim 2, is characterized in that: the diameter of small sircle hole is 0.25 to 0.4 times of pincers axle height.

5. a kind of tool tong according to claim 2, is characterized in that: the central axis of small sircle hole is in tool tong left and right centre symmetry line.

6. a kind of tool tong according to claim 2, it is characterized in that: at section place, the upper-lower height of chamfering equals the radius of small sircle hole, and left and right width is 0.5 to 0.7 times that the first caliper 1 annular rotates interface width, and front and back width equals the diameter of small sircle hole.

7. a kind of tool tong according to claim 3, is characterized in that: the granularity of graphite granule is 200 to 1000 microns.