CN1846941A - Adjustable forceps for coaxially snatching cylindrical object - Google Patents

Abstract

The invention relates to a hand-operate tool, especially an adjustable plier with fixed clamper or caw and movable clamper or caw, wherein it has one device for adjusting the open of plier and holding the clampers; said plier can be locked in one selected position to coaxially catch cylinder object, as hinge or pin of door or window.

Description

The adjustable forceps of coaxially snatching cylindrical object

Technical field

The present invention relates to hand-operated tools, particularly relate to a kind of adjustable forceps that comprises fixing clamp or jaw and active clamp or jaw type, this adjustable forceps has a mechanism, this mechanism is used to adjust the opening of pliers and keeps its jaw close to each other, this pliers can be locked in a position of selecting, be used for coaxially snatching cylindrical object, for example the hinge of door or window or slotting door bolt.

Background technology

Existing adjustable forceps can not solve all problems.Therefore need be designed for the special tool(s) of special requirement, this instrument can maintain the common characteristic that can not change usually.

There are some to be used to arrange the adjustable forceps of cylindrical object, these adjustable forceps have the fork-shaped jaw, it is characterized in that including the symmetrical plane and the coaxial perpendicular positioning of crawled object of instrument, this makes for the slotting door bolt that grasps between door and the framework thereof inapplicable fully.

Summary of the invention

One aspect of the present invention relates to the adjustable forceps that is used for coaxially snatching cylindrical object, it is characterized in that this pliers comprises:

Operate portions, it comprises:

Two tabular jaws, they are located opposite from the working face that is limited by gripper edge, and each jaw has fastening port in its gripper edge, and described fastening port is substantially parallel, is used to limit a cavity, and this cavity is designed to adapt to the diameter of crawled cylindrical object.

The support portion, it comprises:

First end of fixed arm, it is provided with first jockey, is used to be connected and fixed first end of jaw;

First end of intermediate arm, it is provided with first articulated mounting, is used for hinged pivoted jaw, allows to exist between intermediate arm and pivoted jaw a rotation that centers on perpendicular to the axle of working face;

Handle portion, it comprises:

Open and close device, this opening and closing device is designed to move jaw at the working face between open position and closed position, wherein be introduced between the jaw at the open position cylindrical object, in the closed position cylindrical object was clamped in the cavity that is formed by fastening port, described opening and closing device comprised:

Have the fixed handle of first end, it is provided with:

Second jockey is used to be connected and fixed arm;

Second articulated mounting is used for second end of hinged intermediate arm, thereby allows to exist between intermediate arm and fixed handle a rotation of winding perpendicular to the axle of working face;

The flexible handle that has first end, it is provided with the 3rd articulated mounting, is used for the 3rd end of hinged intermediate arm, thereby allows to exist between intermediate arm and flexible handle a rotation of winding perpendicular to the axle of working face;

Wherein, fixed handle and flexible handle form the handshake part of pliers.

Jaw can be U-type cross section, and the end of U is located towards gripper edge.

Equally, fastening port also can be V-type cross section, and the end of V is located towards gripper edge.In addition, the end of V can be the inclined-plane.

On the other hand, pliers of the present invention can be designed such that it grasps object in the cavity with first width A1, and operate portions and support portion have the second width A2 in this case, and described second width is narrower than first width, i.e. A2＜A1.

Equally, in pliers of the present invention, crawled cylindrical object is had first length L 1, in this case, two jaws have second length L 2, and described second length L 2 is greater than first length L 1, the i.e. L2＞L1.

Alternatively, above-mentioned two jaws are connected on the arm, and vertically are spaced apart from each other apart from d.Under this kind state, when in the closed position, in order to provide support to cylindrical object and the stop plane, stationary jaw is with respect to pivoted jaw shift length d inwards forward, and wherein cylindrical object can be to insert door bolt.

And, pliers of the present invention can be with jaw with respect to handle with pistol type mode curved arrangement.Because operate portions and support portion have the second width A2 that is narrower than the first width A1, and the described second width A2 is independent of the width of handle portion, it is hereby ensured that operate portions and support portion work in cavity without a doubt.

Therefore, the present invention relates to a kind of new hand-operated tools, wherein:

Clamp tilts or curved arrangement in the pistol type mode with respect to handle;

The symmetrical plane of instrument includes coaxial axis, thickness with jaw stays uncrossed mode, promptly when jaw is arranged with respect to the pistol type curved handle, because operate portions and support portion have the second width A2 that is narrower than the first width A1, and the described second width A2 is independent of the width of handle portion, therefore, can guarantee that operate portions and support portion work without a doubt in narrow cavity, thereby can allow to enter narrow place, and can make tool and have optimum ergonomics; And

Main grasp force is used for also can keeping the object alignment under the situation that need not limit coaxial toward each other slippage of cylindrical object or slippage relatively;

In other words, the present invention shows the adjustable forceps that is used for coaxially snatching cylindrical object, and it comprises:

A) fixed arm or fixed handle form stationary jaw thereby connected one or more parts successively on fixed arm, or form a fixedly clamp, and fixed arm is connected on the fixed handle securely;

B) lever arm or flexible handle have articulated one or more parts successively on lever arm, thereby form pivoted jaw, pivoted jaw always with the stationary jaw positioned parallel, lever arm is pivotally attached on fixed handle and the flexible handle;

C) governor motion is used to regulate the position of clamp, thereby can the coaxially snatching object;

And, wherein:

The jaw of two arms all has vertically recessed structure, and as U-type or V-type cross section, they are arranged opposite to each other, and makes the lower end that can utilize its flank between them grasp the cylindrical object of a plurality of different sizes;

Jaw is arranged on each arm, and the distance (d) that is spaced along the longitudinal each other, makes them form a step;

The Breadth Maximum of clamp (a) is less than the minimum widith of working space;

The length of jaw (1) be equal to or greater than grasp coaxially along its vertical recess will be guided, clamp or the required minimum length of locking object.

Description of drawings

To introduce a series of accompanying drawings very briefly below, will be better understood the present invention by these accompanying drawings, these accompanying drawings are particularly related to an embodiment of this invention, but this embodiment is not restrictive example.

Fig. 1 is the common schematic diagram according to hand-operated tools of the present invention.

Fig. 2 is the part front view according to hand-operated tools shown in Figure 1, has shown the structure of jaw.

The specific embodiment

Embodiments of the invention are described below, have shown a kind of hand-operated tools of adjustable forceps type.

According to the present invention and illustrated embodiment, fixed handle can locate or be connected on the fixed arm 11, and as the extension of fixed arm 11, fixed handle 1 and fixed arm 11 form stiff members.

In the illustrated embodiment, fixed handle 1 and fixed arm 11 are two parts, and they are connected to each other to integral body by rivet R1, R2.

Described fixed arm 11 connects a stationary jaw 12.In the illustrated embodiment, stationary jaw 12 and fixed arm 11 are connected to each other to integral body by for example rivet R3, R4.

Equally, according to the present invention and illustrated embodiment, can be hinged on the handle 2 with respect to the intermediate arm 21 that flexible handle 2 rotates around turning cylinder P2.

For intermediate arm 21 can be rotated with respect to handle 1 around turning cylinder P3, intermediate arm 21 can be connected on the handle 1 in the mode of rotating equally.

Described intermediate arm 21 is provided with pivoted jaw 22, and this pivoted jaw 22 can rotate around turning cylinder P4.

Stationary jaw 12 and pivoted jaw 22 all have elongate configuration, and can limit and maybe can be provided with vertical recess 12a, 22a.

Preferably, according to illustrated embodiment, these jaws 12,22 are the body in U-type cross section roughly, and fastening port has in the end, inclined-plane of its flank 12a, 22a, as shown in Figure 2.

Preferably, as shown in Figure 1, jaw 12,22 can be connected respectively on arm 11 and 21, and vertically is spaced apart from each other apart from d.Especially, the stationary jaw 12 of fixed arm 1 is with respect to the pivoted jaw 22 of lever arm 21 shift length d inwards forward, and jaw end is as the support of object like this, and another end is as stop member, and this stop member is used for the centering workpiece.

According to the instrument of this embodiment, jaw 12 and 22 is arranged to almost vertical with 2 with respect to handle 1.

As shown in Figure 2, for place tool, jaw 12 and 22 Breadth Maximum A2 are less than the minimum widith of work area A1.

Being connected to jaw 12 on arm 11 and 21 and 22 length L 2 is equal to or greater than extracting will be subjected to guiding coaxially or locking the required minimum length L1 of object between its fastening port 12a and 22a.

Claims (9)

1, the adjustable forceps that is used for coaxially snatching cylindrical object is characterized in that this pliers comprises:

Operate portions, it comprises:

Two tabular jaws (12,22), they are positioned at the working face that is limited by gripper edge relatively, and each jaw (12,22) has fastening port (12a in its gripper edge, 22a), described fastening port (12a, 22a) substantially parallel, be used to limit a cavity, this cavity is designed to be fit to the diameter of cylindrical object that will be crawled

The support portion, it comprises:

First end of fixed arm (11), it is provided with first jockey, and (R3 R4), is used to be connected and fixed jaw (12);

First end of intermediate arm (21), it is provided with first articulated mounting (P4), is used for hinged pivoted jaw (22), allows to exist between intermediate arm (21) and pivoted jaw (22) rotation that centers on perpendicular to the axis of working face;

Handle portion, it comprises:

Open and close device, this opening and closing device is designed to move jaw (12 at the working face between open position and closed position, 22), wherein be introduced into jaw (12 at the open position cylindrical object, 22) between, be clamped in by fastening port (12a by jaw (12,22) at the closed position cylindrical object, 22a) in the cavity of Xing Chenging, described opening and closing device comprises:

Have the fixed handle (1) of first end, it is provided with:

(R1 R2), is used to be connected and fixed arm (11) to second jockey;

Second articulated mounting (P3) is used for second end of hinged intermediate arm (21), thereby allows to exist between intermediate arm (21) and fixed handle (1) rotation of winding perpendicular to the axis of working face;

Have the flexible handle (2) of first end, it is provided with the 3rd articulated mounting (P2), is used for the 3rd end of hinged intermediate arm (21), thereby allows to exist between intermediate arm (21) and flexible handle (2) rotation of winding perpendicular to the axis of working face;

Wherein, fixed handle (1) and flexible handle (2) form the handshake part of pliers.

2, pliers according to claim 1, wherein jaw (12,22) can be U-type cross section, the end of U is located towards gripper edge.

3, according to the described pliers of claim 1-2, wherein (12a 22a) also can be V-type cross section to fastening port, and the end of V is located towards gripper edge.

4, pliers according to claim 3, wherein the end of V is the inclined-plane.

5, according to arbitrary described pliers among the claim 1-4, wherein said pliers can be designed such that it grasps object in the cavity with first width A1, and operate portions and support portion have the second width A2, A2＜A1.

6,, wherein crawled cylindrical object is had 1, two jaw of first length L (12,22) and have second length L 2 according to arbitrary described pliers among the claim 1-5; L2＞L1.

7, according to arbitrary described pliers among the claim 1-6, wherein jaw (12,22) is connected on the arm (11,21), and vertically is spaced apart from each other apart from d.

8, pliers according to claim 7, wherein when in the closed position, in order to provide support to cylindrical object and the stop face, stationary jaw (12) is with respect to pivoted jaw (22) shift length d inwards forward.

9, according to arbitrary described pliers among the claim 1-8, wherein jaw (12,22) with respect to handle (1,2) with pistol type mode curved arrangement.

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