CN212527402U

CN212527402U - Safety tongs for holding hot extrusion elbow

Info

Publication number: CN212527402U
Application number: CN202021187305.5U
Authority: CN
Inventors: 施兴广
Original assignee: Zhejiang Haigwei Hydraulic Technology Co ltd
Current assignee: Zhejiang Haigwei Hydraulic Technology Co ltd
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2021-02-12
Anticipated expiration: 2030-06-23

Abstract

The utility model discloses a safety tongs of hot extrusion return bend is taken in dress, including the pincers body, pincers mouth mechanism, pincers mouth, first connecting rod, second connecting rod, pincers frame, third connecting rod, fourth connecting rod, complementary unit, first pull rod, stay cord, slide bar, reset spring, stopper, second pull rod and draw the bolt. The utility model has the advantages that: the pulling is drawn the bolt and is made two pincers mouths open, move the pincers mouth and loosen the bolt to the work piece both sides, reset spring makes pincers mouth centre gripping work piece under the effect of automatic re-setting force, the pulling is drawn the bolt once more and can be loosened the work piece, through the aforesaid setting, make the user can draw the purpose that the bolt reaches centre gripping work piece through the pulling, the setting of the tong frame that has certain length has avoided the user hand to be close to the work piece, the risk of being burnt by the work piece has been reduced, safety factor has been improved, simultaneously through the setting of two pincers mouths of bolt control, make operation more laborsaving, and work efficiency is improved.

Description

Safety tongs for holding hot extrusion elbow

Technical Field

The utility model relates to a safety tongs specifically is a safety tongs of hot extrusion return bend is taken in dress belongs to the safety tongs field.

Background

Safety tongs, also called tongs, are hand tools, the tongs mouth has a blade, is used for pulling nails or cutting off nails and iron wires, and belongs to a labor-saving lever. The clamp has the characteristics of German style and American style, the German style is also called European style, the appearance is smooth, the sense of squareness is good, and the function of clamping is emphasized; american style focuses mainly on the function of shearing, and safety tongs are needed to be used when the operation of loading and taking the extruded bent pipe is involved.

However, most of the conventional safety tongs are relatively short and require a palm to apply force to clamp a workpiece, so that the hand is easy to touch the hot workpiece to burn when high-temperature operation is required, the safety factor is reduced, the palm is easy to ache during continuous operation, and the working efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a safety tongs of hot extrusion return bend is taken in dress in order to solve above-mentioned problem, has more laborsaving and avoids the hand to touch the advantage of work piece, has improved work efficiency and factor of safety.

The utility model realizes the above purpose by the following technical proposal, a safety tongs for holding hot extrusion bent pipes comprises a tongs body, one end of the tongs body is provided with a tongs mouth mechanism, the tongs mouth mechanism comprises a tongs mouth, a first connecting rod, a second connecting rod, a tongs frame, a third connecting rod and a fourth connecting rod, one end of the tongs body is rotationally connected with one end of the tongs frame, the other end of the tongs frame is rotationally connected with one end of the two first connecting rods, the other end of the tongs frame is also rotationally connected with the middle parts of the two second connecting rods, one ends of the first connecting rod and the second connecting rod departing from the tongs frame are rotationally connected with the tongs mouth, one end of the second connecting rod close to the tongs frame is rotationally connected with one end of the third connecting rod, the other ends of the two third connecting rods are rotationally connected with the two ends of the fourth connecting rod, the inside of the tongs frame is provided with an auxiliary mechanism, the auxiliary mechanism comprises a first pull rod, a pull rope, a sliding rod, a reset spring, a limiting block, a second pull rod and a pull bolt, wherein one end of the first pull rod is fixedly connected to the middle part of the fourth connecting rod, the other end of the first pull rod extends to the inside of the forceps frame and is fixedly connected to one end of the pull rope, the other end of the pull rope penetrates through the forceps frame, extends to the inside of the forceps body and is fixedly connected to one end of the sliding rod, the other end of the sliding rod is fixedly connected with the limiting block, the sliding rod is slidably connected to the inside of the forceps body through the limiting block, the reset spring is wound on the side wall of the sliding rod, one end of the reset spring is fixedly connected to the inner wall of the forceps body, the other end of the reset spring is fixedly connected to one end of the limiting block, and one end of the limiting block, which deviates from the sliding rod, the other end of the second pull rod penetrates through one end of the pliers body and is fixedly connected with the pulling bolt.

Preferably, in order to clamp a workpiece, the opposite sides of the two clamp mouths are serrated, and the cross section of the clamp frame is Y-shaped.

Preferably, in order to facilitate keeping the forceps body and the forceps frame unfolded, a limiting mechanism is arranged inside the forceps body, the limiting mechanism includes a sliding block, a limiting rod and a limiting spring, the sliding block is slidably connected inside the forceps body and the forceps frame, one end of the limiting rod is slidably connected inside the sliding block, the other end of the limiting rod is fixedly connected to the inner wall of the forceps body, the limiting spring is wound on the side wall of the limiting rod, and two ends of the limiting spring are respectively fixedly connected to one end of the sliding block and the inner wall of the forceps body.

Preferably, in order to facilitate the sliding of the sliding block inside the caliper body, the cross section of the sliding block is in a shape of a convex letter, and one end of the sliding block, which is located at the caliper body, protrudes out of the surface of the caliper body.

Preferably, in order to facilitate pulling of the pulling bolt, a pulling cavity is arranged at one end of the forceps body, which is far away from the forceps frame, and the pulling cavity is triangular.

Preferably, in order to conveniently hold the safety gear, a holding groove is formed in the side wall of the pull cavity and is wavy.

The utility model has the advantages that: when a user needs to use the safety tongs, firstly, the tongs body and the tongs frame are unfolded, the pulling bolt is pulled, the pulling bolt drives the second pulling rod, the pulling rod drives the sliding rod to counteract the sliding of the reset spring, the pulling rope connected with the sliding rod is pulled at the moment, then, the first pulling rod slides towards one end of the pulling bolt, the fourth pulling rod enables the third connecting rod to start to deflect under the action of the first pulling rod, the second connecting rod and the first connecting rod which are connected with the third connecting rod in a rotating mode start to deflect as well, at the moment, the two tongs mouths start to open under the deflection of the first connecting rod and the second connecting rod, the two tongs mouths are placed on two sides of a workpiece to be clamped, the pulling bolt is loosened, the workpiece is clamped, the workpiece is loosened when the workpiece is moved to a position to be used, the workpiece is loosened through the arrangement, the user can achieve the purpose of clamping the workpiece through pulling the pulling bolt, and the arrangement of the tongs frame with, the risk of being burnt by the work piece is reduced, factor of safety is improved, simultaneously through the setting of two pincers mouths of blind rivet control for operate more laborsavingly, improved work efficiency.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic structural diagram of the pliers body, the pliers mouth mechanism, the auxiliary mechanism and the limiting mechanism shown in FIG. 1;

FIG. 4 is a schematic view of a connection structure between the caliper body and the limiting mechanism shown in FIG. 1;

fig. 5 is a schematic view of the connection structure of the forceps body, the forceps mouth mechanism and the auxiliary mechanism shown in fig. 1.

In the figure: 1. the pliers comprise a pliers body, 2, a pliers mouth mechanism, 21, a pliers mouth, 22, a first connecting rod, 23, a second connecting rod, 24, a pliers frame, 25, a third connecting rod, 26, a fourth connecting rod, 3, an auxiliary mechanism, 31, a first pull rod, 32, a pull rope, 33, a sliding rod, 34, a return spring, 35, a limiting block, 36, a second pull rod, 37, a pull bolt, 4, a limiting mechanism, 41, a sliding block, 42, a limiting rod, 43, a limiting spring, 5, a pull cavity, 6 and a holding groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, a pair of safety tongs for holding hot-extrusion bent pipes includes a tongs body 1, one end of the tongs body 1 is provided with a tongs mouth mechanism 2, the tongs mouth mechanism 2 includes a tongs mouth 21, a first connecting rod 22, a second connecting rod 23, a tongs frame 24, a third connecting rod 25 and a fourth connecting rod 26, one end of the tongs body 1 is rotatably connected to one end of the tongs frame 24, the other end of the tongs frame 24 is rotatably connected to one end of the two first connecting rods 22, the other end of the tongs frame 24 is also rotatably connected to the middle portions of the two second connecting rods 23, one ends of the first connecting rod 22 and the second connecting rod 23 departing from the tongs frame 24 are both rotatably connected to the tongs mouth 21, one end of the second connecting rod 23 close to the tongs frame 24 is rotatably connected to one end of the third connecting rod 25, the other ends of the two third connecting rods 25 are rotatably connected to both ends of the fourth connecting rod 26, the inside of the forceps frame 24 is provided with an auxiliary mechanism 3, the auxiliary mechanism 3 includes a first pull rod 31, a pull rope 32, a sliding rod 33, a return spring 34, a limiting block 35, a second pull rod 36 and a pull bolt 37, one end of the first pull rod 31 is fixedly connected to the middle of the fourth connecting rod 26, the other end of the first pull rod 31 extends to the inside of the forceps frame 24 and is fixedly connected to one end of the pull rope 32, the other end of the pull rope 32 penetrates through the forceps frame 24 and extends to the inside of the forceps body 1 and is fixedly connected to one end of the sliding rod 33, the other end of the sliding rod 33 is fixedly connected to the limiting block 35, the sliding rod 33 is slidably connected to the inside of the forceps body 1 through the limiting block 35, the return spring 34 is wound on the side wall of the sliding rod 33, one end of the return spring 34 is fixedly connected to the inner wall of the forceps body 1, and the other end of the return spring 34 is fixedly connected to one end of the limit block 35, one end of the limit block 35 departing from the sliding rod 33 is fixedly connected to one end of the second pull rod 36, and the other end of the second pull rod 36 penetrates through one end of the forceps body 1 and is fixedly connected to the pull bolt 37.

As a technical optimization scheme of the utility model, two one side that pincers mouth 21 is relative is the cockscomb structure, the cross-section of jaw frame 24 is Y form.

As a technical optimization scheme of the utility model, the inside of the pincers body 1 is equipped with stop gear 4, stop gear 4 includes slider 41, gag lever post 42 and spacing spring 43, slider 41 sliding connection in the pincers body 1 with the inside of the rack 24, the one end sliding connection of gag lever post 42 in the inside of slider 41, the other end fixed connection of gag lever post 42 in on the inner wall of the pincers body 1, the winding has on the lateral wall of gag lever post 42 spacing spring 43, the both ends difference fixed connection of spacing spring 43 in the one end of slider 41 with on the inner wall of the pincers body 1.

As a technical optimization scheme of the utility model, the cross-section of slider 41 is the type of calligraphy of protruding, just slider 41 is located the one end salient of pincers body 1 is in the surface of pincers body 1.

As a technical optimization scheme of the utility model, pincers body 1 deviates from the one end of tong frame 24 is equipped with draws chamber 5, just draw chamber 5 to be triangle-shaped.

As a technical optimization scheme of the utility model, it holds groove 6 to be equipped with on the lateral wall of chamber 5 to draw, it is wavy to hold groove 6.

When the utility model is used, when the user needs to use the safety tongs, the pulling bolt 37 is pulled, the pulling bolt 37 drives the second pull rod 36, the second pull rod 36 drives the slide rod 33 to counteract the slide of the return spring 34, the pull rope 32 connected to the slide rod 33 is pulled at the moment, then the first pull rod 31 slides towards the direction of the pulling bolt 37, the fourth connecting rod 26 makes the third connecting rod 25 start to rotate under the action of the first pull rod 31, the second connecting rod 23 connected to the third connecting rod 25 and the first connecting rod 22 start to deflect in a rotating way, at the moment, the two plier mouths 21 start to open each other under the deflection of the first connecting rod 22 and the second connecting rod 23, the two plier mouths 21 are placed at two sides of the workpieces needing to be clamped, the pulling bolt 37 is loosened, the return spring 34 clamps the workpieces under the action of the automatic return force, the workpieces are moved to the required positions, the plier mouths 21 are loosened by the pulling bolt 37, through the above setting, conveniently stimulate and draw bolt 37 to reach the purpose of centre gripping work piece, the tong frame 24 that has certain length sets up and has avoided the user's hand to be close to the work piece, the risk of being burnt by the work piece has been reduced, safety factor is improved, simultaneously through the setting of drawing bolt control two pincers mouths, make the more laborsaving of operation, work efficiency is improved, in addition when need not using safety tongs, can stimulate slider 41 and break away from spacing tong frame 24, later rotate tong frame 24 and pincers body 1 again and fold, reduce safety tongs occupation space, make things convenient for accomodating of safety tongs.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a safety tongs of hot extrusion return bend is taken in dress, includes pincers body (1), its characterized in that: one end of the forceps body (1) is provided with a forceps mouth mechanism (2), the forceps mouth mechanism (2) comprises a forceps mouth (21), a first connecting rod (22), a second connecting rod (23), forceps frames (24), a third connecting rod (25) and a fourth connecting rod (26), one end of the forceps body (1) is rotatably connected to one end of each forceps frame (24), the other end of each forceps frame (24) is rotatably connected to one end of each first connecting rod (22), the other end of each forceps frame (24) is rotatably connected to the middle of each second connecting rod (23), one ends of the first connecting rods (22) and the second connecting rods (23) departing from the forceps frames (24) are rotatably connected to the forceps mouth (21), one end of each second connecting rod (23) close to the forceps frames (24) is rotatably connected to one end of each third connecting rod (25), and the other ends of the two third connecting rods (25) are rotatably connected to two ends of the fourth connecting rods (26), the inside of the forceps frame (24) is provided with an auxiliary mechanism (3), the auxiliary mechanism (3) comprises a first pull rod (31), a pull rope (32), a slide rod (33), a reset spring (34), a limiting block (35), a second pull rod (36) and a pull bolt (37), one end of the first pull rod (31) is fixedly connected to the middle part of the fourth connecting rod (26), the other end of the first pull rod (31) extends to the inside of the forceps frame (24) and is fixedly connected to one end of the pull rope (32), the other end of the pull rope (32) penetrates through the forceps frame (24) and extends to the inside of the forceps body (1) and is fixedly connected to one end of the slide rod (33), the other end of the slide rod (33) is fixedly connected to the limiting block (35), and the slide rod (33) is slidably connected to the inside of the forceps body (1) through the limiting block (35), the utility model discloses a pincers, including the slide bar (33), the lateral wall of slide bar (33) is gone up the winding and is had reset spring (34), the one end fixed connection of reset spring (34) in on the inner wall of pincers body (1), just the other end fixed connection of reset spring (34) in stopper (35) one end, stopper (35) deviate from the one end fixed connection of slide bar (33) in the one end of second pull rod (36), the other end of second pull rod (36) run through in the one end of pincers body (1) and fixed connection in draw bolt (37).

2. A safety tongs for holding hot extrusion elbows according to claim 1, wherein: the opposite sides of the two forceps mouths (21) are in a sawtooth shape, and the section of the forceps frame (24) is in a Y shape.

3. A safety tongs for holding hot extrusion elbows according to claim 1, wherein: the inside of pincers body (1) is equipped with stop gear (4), stop gear (4) include slider (41), gag lever post (42) and spacing spring (43), slider (41) sliding connection in the inside of pincers body (1) with pincers frame (24), the one end sliding connection of gag lever post (42) in the inside of slider (41), the other end fixed connection of gag lever post (42) in on the inner wall of pincers body (1), the winding has on the lateral wall of gag lever post (42) spacing spring (43), the both ends of spacing spring (43) respectively fixed connection in the one end of slider (41) with on the inner wall of pincers body (1).

4. A safety tongs for holding hot extrusion elbows according to claim 3, wherein: the cross section of the sliding block (41) is in a convex shape, and one end, located on the clamp body (1), of the sliding block (41) protrudes out of the surface of the clamp body (1).

5. A safety tongs for holding hot extrusion elbows according to claim 1, wherein: one end of the clamp body (1) departing from the clamp frame (24) is provided with a pull cavity (5), and the pull cavity (5) is triangular.

6. A safety tongs for holding hot extrusion elbows according to claim 5, wherein: the side wall of the pull cavity (5) is provided with a holding groove (6), and the holding groove (6) is wavy.