CN2559452Y

CN2559452Y - Double-head vices

Info

Publication number: CN2559452Y
Application number: CN 02242065
Authority: CN
Inventors: 曾逸川
Original assignee: American Merchant Witt Corp Taiwan Branch
Current assignee: American Merchant Witt Corp Taiwan Branch
Priority date: 2002-07-22
Filing date: 2002-07-22
Publication date: 2003-07-09
Anticipated expiration: 2012-07-22

Abstract

A double-ended tongs comprises a left tongs, a right tongs and a spring. Wherein, a pivoting block of the left clamp is provided with a central pivoting hole and a concave arch locating groove to hold the spring. A pivoting block of the right clamp is arranged with a convex circular shaft and a locating post. The circular shaft is provided with a pivoting hole and keeps a specific distance with the circular shaft. In addition, the circular shaft of the right clamp can be pivoted with the pivoting hole of the left clamp. The locating post of the right clamp is hooked with one side of the spring. The other side of the spring contacts the other side of the arch locating groove. As the left clamp and the right clamp pivot inwards, the locating post stably compresses the spring in the arch locating groove. As the applied force is stopped, the compressed spring restores based on its elasticity and jointly acts with the locating post to inversely pivot stably and smoothly in the arch locating groove. Despite slight loosening of the left and the right clamp after long-time operation, the spring can still slide and move stably in the arch locating groove to ensure smooth and stable pivoting of the left and the right clamp and increase spring service life.

Description

Double-headed pliers

Technical field

The utility model means a kind of double-headed pliers, belongs to hand-held gripping tool.

Background technology

Present instrument clamp is shown in accompanying drawing one, system is made up of 5,6 of left and right calipers, its left and right clamp inboard is respectively to have tooth-like part 51,61 and

blade

52,62 to be beneficial to folder or to cut off operation, only usually difform tooth-like part must be arranged through looking into desire clamping different parts, therefore making the instrument clamp that must make different tooth-like parts when producing buys so that the user to be provided, no matter at home or then need the instrument clamp of two different efficacies in the workplace user, thus, receive and keep or carry all very inconvenient; In addition, but the double-headed pliers of commonly using usually system reaches after the pivoted closed the open purpose of elasticity again by the torque spring that is arranged in left and right clamp, only its shortcoming is become flexible slightly and can be pivoted moving by the left and right clamp of influence if having for left and right clamp after using a period of time, causing changes the disappearance that has some setbacks and use, and therefore torque spring also damages easily.

Summary of the invention

Main purpose of the present utility model is to be to provide a kind of double-headed pliers, and it can guarantee the smooth-going of left and right clamp pivotal action and service life stable and that improve spring.

For achieving the above object, the utility model double-headed pliers, comprise a left side, right clamp and spring, wherein left, the two ends medial surface of right clamp is to be respectively equipped with folder tooth portion, the folder tooth portion of blade part and other shapes, this left side, the nearly middle part of right clamp respectively has annular pivot joint block, the pivot joint block of left side clamp has pivot hole, center and is concaved with a circular arc locating slot to hold spring, and pivot joint block that should right side clamp convex with a tool pivot hole circular shaft and with this circular shaft at a distance of the suitable reference column of distance, the circular shaft of right clamp can articulate with the pivot hole pivot cover and the mat pivot connecting element of left clamp, simultaneously can be colluded the side that a side of establishing spring stretches into the circular arc locating slot of left clamp again by the reference column of right clamp, the opposite side of spring then is resisted against the opposite side of circular arc locating slot.

The utility model double-headed pliers, since can be simultaneously during the inside pivoted closed of left and right clamp by reference column stable compression spring in the circular arc locating slot, and when the user stops the application of force, but its elastic restoring force amount of compressed spring mat and interlock reference column are stablized smooth-going reverse pivot so that left and right clamp is recovered open configuration in the circular arc locating slot, cause the loosening slightly of left and right clamp, the slide displacement in the circular arc locating slot that spring still can be stable even therefore use for a long time.

Description of drawings

The stereogram of instrument clamp is commonly used by Fig. 1 system.

Fig. 2 is the three-dimensional exploded view of the utility model embodiment.

Fig. 3 is the stereogram of the utility model embodiment.

Fig. 4 is another angle stereogram of part member of the utility model embodiment.

Fig. 5 is the part plane sectional schematic diagram of the utility model embodiment.

Fig. 6 is the part planar gesture sectional schematic diagram of the utility model embodiment.

Fig. 7 is the schematic perspective view that the utility model embodiment installs handle additional.

Fig. 8 is the schematic perspective view that the utility model embodiment installs the different structure handle additional.

The specific embodiment

Shown in Fig. 2-6, a kind of double-headed pliers 1 of the utility model, system includes a left side,

right clamp

11,12 and spring 13, and a left side,

right clamp

11,12 two ends medial surface is to be respectively equipped with folder tooth portion 113,123, blade part 114,124 with the folder tooth portion 115 of other shapes, 125,116,126, and it is wherein left,

right clamp

11,12 respectively have annular pivot joint block 110 near the middle part, 120, and the pivot joint block 110 of left clamp 11 is to have pivot hole, center 1101 and be concaved with a circular arc locating slot 102 to hold spring 13, and pivot joint block 120 that should right side clamp 12 be convex with a tool pivot hole 1201 circular shaft 1202 and with this circular shaft 1202 at a distance of the suitable reference column 121 (with reference to figure 4) of distance, circular shaft 1202 by right clamp 12 can overlap with pivot hole 1101 pivots of left clamp 11 and for example pivot 10 and locating piece 101 pivot joints of mat pivot connecting element, and can be colluded the side 1021 that a side 131 of establishing spring 13 stretches into the circular arc locating slot 102 of left clamp 11 again by the reference column 121 of right clamp 12 simultaneously, the opposite side 132 of spring 13 then is resisted against the opposite side 1022 of circular arc locating slot 102;

By aforementioned feature, can be simultaneously when the inside pivoted closed of left and

right clamp

11,12 by reference column 121 stable compression spring 13 (with reference to figure 6) in circular arc locating slot 102, and when the user stops the application of force, but its elastic restoring force amount of compressed spring 12 mats and motion positions post 121 are stablized smooth-going reverse pivot so that left and

right clamp

11,12 is recovered open configurations (with reference to figure 5) in circular arc locating slot 102.

Person in addition is that the utility model installs the handle 2 of different structure, 2 ' schematic perspective view additional with reference to figure 7, Fig. 8.

Moreover, the structure of left and

right clamp

11,12 system can implement in another way in the previous embodiment, left clamp 11 can be changed into having circular shaft and protruding positioning pole, and right clamp 12 changes into and has the circular arc locating slot, because its structural principle is identical with previous embodiment, therefore other drawing illustrate not.

In sum, the left side of the utility model double-headed pliers, right clamp 11, can be simultaneously during 12 inside pivoted closed by reference column 121 stable compression spring 13 in circular arc locating slot 102, and when the user stops the application of force, but compressed its elastic restoring force amount of spring 13 mats and interlock reference column 121 are stablized smooth-going reverse pivot with a left side in circular arc locating slot 102,

right clamp

11,12 recover open configuration, cause a left side even therefore use for a long time,

right clamp

11,12 loosening slightly, spring 13 still can be stable slide displacement in circular arc is located 102 grooves, can guarantee a left side relatively, right clamp 11, the service life that is smooth-going and stable and that improve spring of 12 pivotal action.

Claims

A kind of double-headed pliers, system includes a left side, right clamp and spring, wherein left, the two ends medial surface of right clamp is to be respectively equipped with folder tooth portion, the folder tooth portion of blade part and other shapes, it is characterized in that, this left side, the nearly middle part of right clamp respectively has annular pivot joint block, the pivot joint block of left side clamp has pivot hole, center and is concaved with a circular arc locating slot to hold spring, and pivot joint block that should right side clamp convex with a tool pivot hole circular shaft and with this circular shaft at a distance of the suitable reference column of distance, the circular shaft of right clamp can articulate with the pivot hole pivot cover and the mat pivot connecting element of left clamp, simultaneously can be colluded the side that a side of establishing spring stretches into the circular arc locating slot of left clamp again by the reference column of right clamp, the opposite side of spring then is resisted against the opposite side of circular arc locating slot.