CN2134261Y - Movable ratchet carring forceps - Google Patents

Abstract

The utility model discloses a moveable spanner with ratchet wheels, comprising a handle, a moveable spanner head, a fixing spanner head, two ratchet wheels and a gear pin. The handle and the fixing spanner head are movably integrated into one unit by the gear pin and the ratchet wheel; simultaneously, the handle connects and cooperates with the movable spanner head by a gear on the gear pin, a spanner sleeve on the fixing spanner head, and rack bars on the moveable spanner head handle. The utility model has the advantages that the moveable spanner with ratchet wheels has a self-holding function, the adjustment is convenient, the versatility is strong, the work efficiency is high, and the shape of the work piece and the rotation angle can not limit the moveable spanner with ratchet wheels. The utility model overcomes the defects that the traditional grip wrench and the adjustable wrench have single usage, the opening and closing of the jaw need to adjust nuts, the efficiency is low, etc.

Description

Movable ratchet carring forceps

Pincers are removed in a kind of activity that the utility model belongs in the machine tool, particularly a kind ofly have ratchet mechanism and pincers are removed in activity that can auto lock, are suitable for the installation and removal of workpiece such as all kinds of pipe fittings and bolt, nut.

At present in industries such as machinery, chemical industry, building, water supply and sewage,, generally all need adopt pipe vice or conventional Adjustable wrench to carry out respectively for installation and removal of pipe fitting and all kinds of nut, bolt etc.Both are according to the size that is held workpiece in use, after adjusting nut on elder generation's turn binding clip etc. makes jaw snap in workpiece, the reverse rotation adjusting nut makes the jaw clamping work pieces again, and then firmly turning handle realizes screwing or unloading workpiece, this class pipe wrench and spanner can not relatively rotate, therefore because handle and binding clip are fixed, when other barrier being arranged or be in narrow positions around workpiece, the moving certain angle of revolution must unclamp jaw clamping again; And activity removes pincers and can only be used with class workpiece such as bolt, nuts, and can not be used for the pipe fitting workpiece; And but pipe vice can only be used to load and unload the pipe fitting workpiece, thus this class Adjustable wrench and pipe vice to exist versatility poor, use shortcomings such as inconvenient operation and efficient are lower.

The purpose of this utility model is to design a kind of pipe fitting that both had been suitable for, and pincers are removed in the activity that is suitable for loading, unloading such as bolt, nut class workpiece again.This is removed between the handle of pincers and the binding clip and can relatively rotate, two jaws can clamp automatically.To reach highly versatile, easy to operate and purpose such as increase work efficiency.

Solution of the present utility model is except that still being provided with handle, activity and fixed pliers head and being divided into the upper and lower jaw on two binding clips, also increase the cylindrical gear pin of band gear in the middle of two ratchets and, and fixed pliers head and handle is separating component; A ratchet slot is respectively established at two ends in gear pin, and two ratchets then are fixed in this ratchet slot respectively versatilely; The cylindrical pin-and-hole that one pincers cover is set on the fixed pliers head and passes through mutually with this pincers cover, the cross section of pincers cover endoporus can be the square-section, also can be other on-circular cross-section, and handle is forked, ratchet hole, the pin-and-hole on the fixed pliers head and the ratchet hole on the handle that one band ratchet is respectively arranged in the jaw both sides.By gear pin and be loaded on movable connection of ratchet in this gear pin two ends ratchet slot.Whole gear pin then is fixed in pin-and-hole and ratchet hole versatilely by two end cap and the screw that is positioned at outside the ratchet hole; Binding clip handle inboard at movable binding clip is provided with a tooth bar, the gear of this binding clip handle by pincers covers and gear pin middle part connect with fixed pliers head and with movable binding clip, fixed pliers head and handle interoperation; Upper jaw of the present utility model is for the band tooth or not with flat mouthful of tooth, lower jaw is then for being with the V-arrangement jaw of tooth.The utility model is promptly realized its goal of the invention by such scheme.

The utility model since handle connects with fixed pliers head employing activity, and by ratchet mechanism joystick reinforcing and return direction, therefore, but the just reciprocal turning handle of continuous several times after the clamping once.All can make binding clip drive workpiece generally speaking and rotate more than 180 °, thereby overcome conventional Adjustable wrench and the pipe vice revolution is moving once needs clamping work pieces again, and the disadvantage of wanting rotational angle to limit; Movable binding clip is by tooth bar, gear pin and fixed pliers head and handle interoperation, when clamping work pieces, need only get final product by a pressure activity binding clip, and do not need adjustings such as adjusting nut, and the tooth bar on the gear teeth drive handle when handle is afterburning because on the gear pin is to fixed pliers head direction motion and afterburning simultaneously, therefore in the course of the work, the added power of handle is big more, and its workpiece is just held tight more; And lower jaw is the V-type jaw of band tooth, and upper jaw both can be used for bolt, the work of nut class, and can be used for the loading, unloading of tubular workpiece again for flat mouth makes this activity remove pincers again.So the utlity model has use, easy to adjust, be not subjected to the restriction of workpiece shape and rotational angle, and operating efficiency be than characteristics such as height.

Accompanying drawing and description of drawings:

Fig. 1 is the utility model structural representation;

Fig. 2 is the side view of Fig. 1;

Fig. 3 is fixed pliers head structural representation (enlarged drawing).

Among the figure: 1, be movable binding clip, 2, fixed pliers head, 3, gear pin, 4, screw, 5, the binding clip handle, 6, handle, 7, end cap, 8, the ratchet hole, 9, ratchet slot, 10, ratchet, 11, pin, 12, compression spring, 13, lower jaw, 14, upper jaw, 15, tooth bar, 16, the pincers cover, 17, pin-and-hole.

Embodiment

Present embodiment is not less than 650Nm to bear moment of torsion, and the activity of caliper length overall (when upper and lower jaw closes up) 350mm is removed pincers and is example:

Movable binding clip 1, fixed pliers head 2, handle 6 all adopts the 45# steel-casting, and the upper and lower jaw 14,13 of present embodiment adopts regular jaw, with the moulding of binding clip one-step casting; Gear pin 3 adopts the 45# round steel to make through machined.All through heat treatment, wherein gear pin 3 behind the above-mentioned parts-moulding, upper and lower jaw 14,13, and the hardness of binding clip handle 5 and pincers cover 16 etc. all should reach HRC40～45; Ratchet 10 adopts powdered metallurgical material, and the hardness after the heat treatment also should be in HRC40～45 scopes; Two end cap 7 moulding rear surfaces are zinc-plated.Gear pin 3, diameter phi 273mm, long 44mm, the number of teeth is 8 teeth, modulus is 275, two ends ratchet slot 9, wide 9mm, dark 96mm, pin hole centre-to-centre spacing central shaft 88mm; Ratchet hole 8 internal diameter φ 275mm, tooth number Z=40; Pin-and-hole 17, diameter phi 28mm; Compression spring 12, material are the 65Mn steel wire.

If the right hand is held pincers handle 6, then left hand screws out to clockwise direction movable binding clip 1 from pincers cover 16, and upper and lower two jaws are opened during use; Need only press to the lower jaw direction with hand with movable binding clip 1 after the jaw folder is gone up workpiece, upper jaw 14 promptly with lower jaw 13, is clamped workpiece; Turning handle 6 firmly then, ratchet on the handle is by ratchet 10 at this moment, driven gear pin 3, together rotate with handle, when gear pin is rotated, the tooth bar 15 that gear on it also drives on the binding clip handle 5 along clockwise direction moves downwards, thereby two jaws are clamped workpiece tightly, and the suffered chucking power of workpiece is also big more when the handle reinforcing is big more; If in the time of need unclamping jaw, as long as handle 5 is rotated to counter-clockwise direction, jaw promptly unclamps automatically with workpiece.

Claims (2)

1, a kind of movable ratchet is removed pincers, comprise handle, activity and fixed pliers head and be divided into upper and lower jaw on two binding clips, it is characterized in that it also comprises the cylindrical gear pin of band gear in the middle of two ratchets and, and fixed pliers head and handle are separating component; Two ends in gear pin respectively are provided with a ratchet slot, and two ratchets are fixed in this ratchet slot respectively versatilely; The cylindrical pin-and-hole that fixed pliers head is provided with a pincers cover and passes through mutually with this pincers cover; Handle is forked, and the ratchet hole of a band ratchet is respectively arranged in the jaw both sides; Ratchet hole on pin-and-hole on the fixed pliers head and the handle is by gear pin and be loaded on movable connection of ratchet in this gear pin two ends ratchet slot, and whole gear pin then is fixed in pin-and-hole and ratchet hole versatilely by two end cap and the screw that is positioned at outside the ratchet hole; Binding clip handle inboard at movable binding clip is provided with a tooth bar, the gear of this binding clip handle by pincers covers and gear pin middle part connect with fixed pliers head and with movable binding clip, fixed pliers head and handle interoperation; Upper jaw is for the band tooth or not with flat mouthful of tooth, lower jaw is then for being with the V-arrangement jaw of tooth.

2, remove pincers by the described movable ratchet of claim 1, it is characterized in that the cross section of described pincers cover endoporus can be the square-section, also can be other on-circular cross-section.