CN202619881U

CN202619881U - Novel draw hook pliers

Info

Publication number: CN202619881U
Application number: CN 201220285444
Authority: CN
Inventors: 张圣军
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-06-18
Filing date: 2012-06-18
Publication date: 2012-12-26
Anticipated expiration: 2022-06-18

Abstract

The utility model relates to a medical instrument and provides novel draw hook pliers. The novel draw hook pliers comprise a first claw beam and a second claw beam, wherein the first claw beam and the second claw beam are hinged through a pin roll, two clamping heads which are in mutual symmetry in the radial direction are formed at the head end of the second claw beam, an embedding groove of a draw hook is formed between the two clamping heads, clamping teeth are formed at the head end of the first claw beam, the number of the clamping teeth is two, the clamping teeth are symmetrically arranged with a centerline of the embedding groove of the draw hook as a symmetric line, and teeth tips of the clamping teeth are toward the lower bottom surfaces of the clamping heads. The novel draw hook pliers are simple in structure and convenient to use. Meanwhile, the draw hook can be clamped in the process of using, an arch wire is not bent easily, and a certain beneficial effect is produced.

Description

A kind of novel traction hook pincers

Technical field

This utility model relates to a kind of medical instruments, is a kind of novel traction hook pincers.

Background technology

Tradition hook pincers are merely one because it clamps tooth when the clamping hook, so its chucking power converges and is prone to cause arch wire crooked at the crown place that clamps tooth when the clamping hook, influences the straight of arch wire, is unfavorable for orthodontics.

The utility model content

This utility model is intended to address the above problem, and a kind of novel traction hook pincers are provided, and it has overcome uses traditional hook pincers in clamping hook process, to be prone to cause the crooked drawback that influences orthodontics of arch wire, and its technical scheme that adopts is following:

A kind of novel traction hook pincers; Comprise: first claw beam and second claw beam; Said first claw beam and second claw beam are hinged through bearing pin, and the head end of said second claw beam is formed with two mutual mirror image symmetry dops, is formed with hook between two dops and inserts groove; The head end of said first claw beam is formed with the clamping tooth; Said clamping tooth is two, and the center line that said clamping tooth is inserted groove with hook is that line of symmetry is symmetrical, and the distance between said two clamping tooth crowns is greater than the minimum range between two dops and less than the distance between the two dop lateral surface.

The utlity model has following advantage: simple in structure, easy to use, in use can clamp hook, be difficult for causing the bending of arch wire again.

Description of drawings

Fig. 1: the structural representation of traditional hook clamp head part (user mode);

Fig. 2: the structural representation of this utility model;

Fig. 3: the structural representation of this utility model head;

Fig. 4: the structural representation of this utility model head (user mode);

Symbol description:

1. first claw beam, 2. second claw beam, 3. bearing pin, 4. dop, 5. hook is inserted groove, 6. clamps tooth, 7. hook.

The specific embodiment

Below in conjunction with accompanying drawing and instance this utility model is described further:

As shown in Figure 1; Tradition hook pincers only have one and clamp tooth; And this clamping tooth is aimed at hook and is inserted groove; So when clamping since dop to the line of action of force of hook with clamp tooth to the line of action of force of hook a bit of distance at interval, so thereby in this segment distance, can produce one around the moment of torsion that clamps the tooth crown be prone to make arch wire at clamping tooth crown place bending.

Extremely shown in Figure 4 like Fig. 2; A kind of novel traction hook pincers of present embodiment; Comprise: first claw beam 1 and second claw beam 2; Said first claw beam 1 and second claw beam 2 are hinged through bearing pin 3, and the head end of said second claw beam 2 is formed with and is formed with hook between 4, two dops 4 of two mutual mirror image symmetry dops and inserts groove 5; The head end of said first claw beam 1 is formed with and clamps tooth 6; Said clamping tooth 6 is two, and the center line that said clamping tooth 6 is inserted groove 5 with hook is that line of symmetry is symmetrical, and the distance between said two clamping teeth, 6 crowns is greater than the minimum range between two dops 4 (distance of left dop bottom, right end face as shown in Figure 3 to right dop bottom, left end face) and less than the distance between two dops, 4 lateral surface (distance of left dop as shown in Figure 3 left side to right dop right side).During use hook 7 being inserted hook inserts in the groove 5; Hold with a firm grip first claw beam 1 and second claw beam 2; Two crowns that clamp teeth 6 prop up the bottom surface of hook 7, and because of so the line of action of force and the line of action of force that clamps 6 pairs of hooks 7 of tooth of 4 pairs of hooks 7 of dop coincides no moment of torsion, and two clamping teeth 6 concentrate on clamping force on two point of symmetry of hook 7; So when can be implemented in, do not cause the bending of hook 7 and arch wire with hook 7 clampings.

This utility model is not limited to above-mentioned specific embodiment, and all any changes done based on this utility model or modification all belong to this utility model and require the scope protected.

Claims

1. a novel traction hook clamps; Comprise: first claw beam and second claw beam; Said first claw beam and second claw beam are hinged through bearing pin, it is characterized in that: the head end of said second claw beam is formed with two mutual mirror image symmetry dops, is formed with hook between two dops and inserts groove; The head end of said first claw beam is formed with the clamping tooth; Said clamping tooth is two, and the center line that said clamping tooth is inserted groove with hook is that line of symmetry is symmetrical, and the distance between said two clamping tooth crowns is greater than the minimum range between two dops and less than the distance between the two dop lateral surface.