CN203171462U

CN203171462U - Inner-arc-shaped open mouth tongs

Info

Publication number: CN203171462U
Application number: CN 201320066471
Authority: CN
Inventors: 张利民
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-02-06
Filing date: 2013-02-06
Publication date: 2013-09-04
Anticipated expiration: 2023-02-06

Abstract

The utility model discloses inner-arc-shaped open mouth tongs which comprise a tong mouth and tong handles, wherein the tong mouth and the tong handles form two tong arms (1, 2), the tong arms (1, 2) are connected to a connecting point (3) crosswise in a hinged mode. The inner-arc-shaped open mouth tongs are characterized in that opposite faces of mouth portions of the two tong arms (1, 2) are provided with a plurality of inner-arc-shaped grooves (4), the grooves (4) form at least one circular cavity (5) in two-to-two correspondence, the sectional area of the circular cavity (5) is increased in sequence in the direction away form the tong mouth along a central shaft, and anti-sliding teeth (5) are arranged on the grooves (4). The inner-arc-shaped open mouth tongs have the advantages of being simple in structure, reasonable in design, low in manufacturing cost, long in service life, multipurpose, and wide in practical range; the grooves define a plurality of circular cavities, circular workpieces can be well clamped in application, meanwhile the anti-sliding teeth are arranged in the cavity to effectively improve anti-sliding and reinforcing effects of the anti-sliding teeth, and working efficiency is further improved.

Description

A kind of arc open mouth tongs

Technical field

The utility model relates to a kind of pliers, especially relates to a kind of arc open mouth tongs.

Background technology

Pliers be a kind of for clamping, fixedly processing work or reverse, crooked, the hand tools of cutting off tinsel.The profile of pliers is V-shaped, generally includes handle, the pincers cheek and three parts of jaw.In the daily life, the pliers that people use substantially all is in the majority with the line contact during clamping, can cause the clamping dislocation thus, the situation of correcting dislocation takes place, simultaneously, if the conference of exerting oneself causes the damage of holding workpiece, at this problem, this case produces thus when line contacts.

The utility model content

Technical problem to be solved in the utility model provides a kind of arc open mouth tongs, and can change traditional method of clamping with the line contact is the face contact, thus more rational distribution chucking power, the reinforcing function when further having strengthened clamping again simultaneously.

In order to realize this purpose, the technical solution of the utility model is: a kind of arc open mouth tongs, comprise jaw, pincers handle, described jaw and described pincers handle are formed two tong arms, described tong arm cross-articulation is in a point of contact, and the opposite face of described two tong arm mouths is provided with some interior arc flutings, and described groove is corresponding at least one round chamber that forms in twos, described round chamber sectional area increases away from the jaw direction successively along central shaft, and described groove is provided with anti-slop serrations.

Adopt the utility model arc open mouth tongs, it is provided with at least one round chamber, described round chamber increases away from the jaw direction successively from central shaft again, thereby form the round chamber of a plurality of different sizes, the round workpiece of energy clamping different radii, changed the working method that pliers contacts with line in the daily life, reached the effect of face contact, stressed when the round workpiece that can effectively distribute thus is held, simultaneously, groove is provided with anti-slop serrations, reinforces anti-skidding effect in the time of reaching workpiece and be held, and is conducive to increase work efficiency.

As further improvement in the technical proposal:

Preferably, described groove is 6, and it is 3 described round chambers of corresponding formation in twos.

Preferably, described round chamber sectional area is respectively 0.5,0.75,1 square centimeter.

The utility model is example with 6 grooves, thereby forms 3 round chambers in twos relatively, the sectional area that 3 chambers surround separately need not, satisfied the needs of the round piece-holder of different radii.

Preferably, the cross section of described anti-slop serrations is triangle.

The utility model is provided with anti-slop serrations in groove, the cross section of described anti-slop serrations is that triangle is for reaching best reinforcing skidproof effect, also meeting the design of theory of mechanics simultaneously.

Preferably, described anti-slop serrations accounts for 4/5 of described groove area.

Preferably, the height of described anti-slop serrations is 1～3 millimeter.

Considering to reinforce many-sides such as anti-skidding and production cost, described anti-slop serrations accounts for 4/5 of described groove area, and the height of described anti-slop serrations is 1～3 millimeter and is optimum efficiency.

Preferably, the pincers handle of described two tong arms is the arcuate structure that curves inwardly relatively, and described Cover of pliers handle has protective jacket.

Shank can be divided into staight shank, curved handle and bow handle according to the gripping form, and what the utility model adopted is the bow handle, according to the shank of ergonomics principle design, is convenient to safety and comfortable gripping more, meets user's work habit.

The arc open mouth tongs may contact with the energized conductor of electric wire and so in use, and the protective jacket that shank is arranged adopts insulating materials to make, and guaranteeing operator's safety, and the surface of protective jacket is additional that anti-skidding lines is arranged, and is convenient to user's gripping.

Preferably, described groove inwall is provided with wearing layer.

Wearing layer has double action: the one, and the groove of protection square-mouth tongs is not easy to wear in long-term use; The 2nd, the friction between the cell wall of increase groove and the part to be held makes to be difficult between the two skidding.Wearing layer can adopt carbide alloy coating.

Compared with prior art, the utility model has the advantages that simple in structure, reasonable in design, low cost of manufacture, long service life; The many usefulness of one tool, usage range is big; Groove has surrounded several round cavitys, and the round workpiece of different radii can better be held, and simultaneously, is provided with the effect that anti-slop serrations can more effectively improve its anti-skidding reinforcing in cavity, has further improved operating efficiency.

Description of drawings

Fig. 1 is the utility model arc open mouth tongs structural representations;

Fig. 2 is the utility model arc open mouth tongs structural representations;

Fig. 3 is the utility model arc open mouth tongs structural front view;

Fig. 4 is the partial enlarged drawing of A in the utility model arc open mouth tongs structural front view;

The specific embodiment

Below be specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.

As shown in Figure 1, the arc open mouth tongs of present embodiment, comprise jaw, pincers handle, jaw is formed two tong arms 1,2 with the pincers handle, tong arm 1,2 cross-articulation are provided with some interior arc flutings 4 in the opposite face of a point of contact 3, two tong arms 1,2 mouths, and groove 4 is corresponding at least one round chamber 5 that forms in twos, round chamber 5 sectional areas increase away from the jaw direction successively along central shaft, and groove 4 is provided with anti-slop serrations 6.

Groove 4 is 6, and it is 3 round chambers 5 of corresponding formation in twos, and round chamber 5 sectional areas are respectively 0.5,0.75,1 square centimeter.

The cross section of anti-slop serrations 6 is triangle, and anti-slop serrations 6 accounts for 4/5 of groove 4 areas, and the height of anti-slop serrations 6 is 1～3 millimeter.

Two tong arms 1,2 pincers handle are the arcuate structure that curves inwardly relatively, and Cover of pliers handle has protective jacket.

Groove 4 inwalls are provided with wearing layer.

During people's use; the hand-hold pincers shank portion; the design that the pincers handle is handed for the more effective people of meeting of arcuate structure energy that curve inwardly relatively; be beneficial to the comfortableness of its work; Cover of pliers handle has protective jacket simultaneously; security when having protected people to work; jaw is formed two tong arms with the pincers handle; the tong arm cross-articulation is in a point of contact; pincers shank spare length is greater than the jaw parts, is in order to use, and carries out more effective clamping under less strength situation; the opposite face of tong arm mouth is provided with some interior arc flutings; groove is corresponding at least one round chamber that forms in twos, has satisfied the round workpiece of energy clamping different radii, has changed the working method that pliers contacts with line in the daily life; reached the effect of face contact; stressed when the round workpiece that can effectively distribute thus is held, simultaneously, groove is provided with anti-slop serrations; the triangular design of anti-slop serrations reaches best reinforcing skidproof effect, more favourable raising operating efficiency.

The above only is preferred embodiment of the present utility model, not in order to limiting the utility model, all any modifications of doing within spirit of the present utility model and principle, is equal to and replaces and improvement etc., all is included within the protection domain of the present utility model.

Claims

1. arc open mouth tongs, comprise jaw, pincers handle, described jaw and described pincers handle are formed two tong arms (1,2), described tong arm (1,2) cross-articulation is in a point of contact (3), it is characterized in that: the opposite face of described two tong arms (1,2) mouth is provided with some interior arc flutings (4), described groove (4) is corresponding at least one round chamber (5) that forms in twos, and described round chamber (5) sectional area increases away from the jaw direction successively along central shaft, and described groove (4) is provided with anti-slop serrations (6).

2. according to the described arc open mouth tongs of claim l, it is characterized in that: described groove (4) is 6, and it is corresponding 3 the described round chambers (5) that form in twos.

3. arc open mouth tongs according to claim 2, it is characterized in that: described round chamber (5) sectional area is respectively 0.5,0.75,1 square centimeter.

4. according to the described arc open mouth tongs of claim l, it is characterized in that: the cross section of described anti-slop serrations (6) is triangle.

5. according to the described arc open mouth tongs of claim l, it is characterized in that: described anti-slop serrations (6) accounts for 4/5 of described groove (4) area.

6. according to the described arc open mouth tongs of claim l, it is characterized in that: the height of described anti-slop serrations (6) is 1～3 millimeter.

7. according to the described arc open mouth tongs of claim l, it is characterized in that: the pincers handle of described two tong arms (1,2) is the arcuate structure that curves inwardly relatively, and described Cover of pliers handle has protective jacket.

8. according to the described arc open mouth tongs of claim l, it is characterized in that: described groove (4) inwall is provided with wearing layer.