CN2399168Y - Pipe vice - Google Patents

Abstract

The utility model provides a pipe vice which has the advantages of one-handed operation, three workpieces clamping and locking points, flexible opening and closing, rapid regulation and firm and reliable workpieces self locking, enables the return spring of an upper vice head to have reasonable design and plays the function of power-assisting a jaw to tightly clamp the workpieces. The utility model is composed of the upper vice head, a lower vice body, a tooth block, the spring, a pin shaft and a screw nail, wherein, the inner side of front part of the upper vice head forms a 115-135DEG V-shaped inner A surface and B surface, and gear teeth are ranged on the A surface and the B surface and are connected to the inner of a hole M on the upper end of the lower vice body, enabling the upper vice head with the V-shaped inner arranged teeth to surround and move on an arc surface on the tooth top of a lower tooth block. The spring body is clamped on a connecting point between the upper vice head and the lower vice body to enable workpieces not to escape on the V-shaped gear teeth of the upper vice head and the arc tooth surface of the tooth block.

Description

A kind of pipe vice

But the utility model relates to a kind of hand-operated tools class of clip locking, is specially adapted to the switching column workpiece, as the pipeline of running water.

What existing pipe vice adopted substantially is to cooperate rotation adjusting jaw size and carry out work with screw, screw mandrel; Fibrous root is repeatedly regulated the jaw folding according to the size of workpiece during work, waste time and energy, and 2 contact workpieces carried out clip locking when existing pipe vice jaw was worked, workpiece is stressed unequal relatively, skid easily, the easy damaged surface of the work, existing pipe vice also has 3 contact workpieces of jaw, there is advantage that weak point is also arranged, extension spring between its binding clip and the pincers handle is easily lost, must one after extension spring is lost hold pincers handle another hand and could work by the binding clip switching, during the clip workpiece than requiring great effort poor reliability.

The purpose of this utility model is to avoid the weak point on the above-mentioned prior art and a kind of one-hand operation is provided, 3 clip locking workpiece, the workpiece mean forced, folding flexibly, adjusting is rapid, time saving and energy saving, clip self-locking workpiece is firm, spring body between upper grip head and the lower clamp, that upper grip head is playbacked is reasonable in design, play assistant's jaw clip locking workpiece, be easy to work, in light weight, portable pipe vice.

The utility model is achieved in that its upper grip head is anterior inboard V-shaped, it is 115 °～135 °, arranging teeth on V-type medial surface A face and the B face, the anterior angle of teeth is 35 °, relief angle is 50 °, dented 1mm～the 6mm of C face of the pin shaft hole of upper grip head is the circular groove D of spring body, have one streamlined little by handle in the upper end parallel, the circular groove D of the spring body outside with pin shaft hole center line E, one little groove F is arranged in little lower end by handle, during one end of one spring body is stuck under the little groove, the other end is pressed in lower clamp G place, the toothed block teeth of a cambered surface are set in the groove  of lower clamp upper end between upper grip head and lower clamp, lower clamp K place has a hole with bolt cambered surface teeth piece to be fixed in the groove  of lower clamp upper end, and the tooth top camber line of cambered surface teeth piece is R25mm～R115mm; The cambered surface of cambered surface tooth top is the center with , the pin shaft hole M that connects upper grip head and lower clamp is partial to the cambered surface addendum line center 13mm～60mm of cambered surface teeth piece, to have the inboard upper grip head of arranging teeth of V-type with bearing pin is connected among the hole M of lower clamp upper end, making it to have the inboard upper grip head of arranging teeth of V-type can be around movable on the tooth top cambered surface of following block teeth, spring body is stuck in upper grip head and lower clamp junction, spring body makes the upper grip head compressing on workpiece during work, pulls handle and makes the lower clamp block teeth withstand the purpose that workpiece reaches clip, self-locking workpiece.The handle of raising one's hand unclamps immediately gently, because connecting hole M is partial to the effect of the reasonable in design and spring body of the distance of tooth top arc centers , workpiece is not escaped on upper grip head V-arrangement teeth and block teeth arc-shaped tooth, when handle gently one press down stressed, jaw reaches firmly self-locking workpiece, the handle of raising one's hand is freed immediately gently, and switching reaches sour jujube and pulls effect continuously.

Structure of the present utility model has guaranteed that jaw can be at the moment quickly opening and closing, 3 of workpiece are stressed steadily laborsaving, clip locking workpiece is firm, it is rapid to break away from workpiece, upper grip head is streamlined little reasonable by handle design, one hand can be operated during work, it is solid firm that the toothed block teeth of arc are set in the groove  of lower clamp upper end, attractive in appearance again, the block teeth of the wearing and tearing steel manufacturing of higher gears easily, increased the life-span of using, the intensity and the hardness of teeth have been guaranteed, it is reasonable that the pin shaft hole M that connects upper grip head and lower clamp is partial to the size design of cambered surface addendum line center of cambered surface teeth piece, both guaranteed that upper grip head folding amount was big, guaranteed that again clip self-locking workpiece is firm, pipe vice of the present utility model can both be acted on applied force on the workpiece on any position between maximum opening and the minimum aperture to greatest extent, one press the streamlined little of upper grip head gently with thumb during work by handle, upper grip head just opens and is placed on the workpiece, one by the pincers handle gently, just with firmly clip pinning of workpiece, pressure is big more, and it is firm more to lock; Press the streamlined little handle of upper grip head with thumb one gently, just open jaw, just can break away from workpiece, fast and flexible, convenient and reliable, time saving and energy saving has improved work efficiency greatly.

The drawing of accompanying drawing is described as follows:

Fig. 1 is a structure chart of the present utility model;

Fig. 2 is the utility model partial structurtes figure;

Among Fig. 1: (1) upper grip head; (2) lower clamp; (3) block teeth; (4) spring; (5) bearing pin; (6) screw; (M) pin shaft hole of connection upper grip head and lower clamp;

Among Fig. 2: the A face is upper grip head front teeth; B face: upper grip head back teeth; C: upper grip head pin shaft hole face; D: the circular groove of putting spring body; E: pin shaft hole center line; F: the little little groove of pressing handle lower end jump ring; G: lower clamp jump ring place; : the groove of the piece of having a denture made of lower clamp upper end; K: fixedly the place in block teeth hole is located; : tooth top cambered surface center;

Provide according to the embodiment that the utility model proposes below in conjunction with accompanying drawing: pipe vice is by (1) upper grip head; (2) lower clamp; (3) block teeth; (4) spring; (5) bearing pin; (6) the screw composition is shown in figure one; The anterior inboard of upper grip head is V-shaped to be 125 °, arranging teeth on V-arrangement medial surface A face and the B face, the anterior angle of teeth is 35 °, relief angle is 50 °, the dented 3mm of C face of the pin shaft hole of upper grip head is the spring circular groove, one spring body, one end is stuck in little pressing among the little groove F in handle lower end, the other end is pressed in lower clamp G place, the toothed block teeth of one cambered surface are set in the groove  of lower clamp upper end, lower clamp K place has a hole cambered surface teeth piece to be fixed in the groove  of lower clamp upper end with screw, the tooth top camber line of cambered surface teeth piece is R48mm, the cambered surface center of tooth top relatively connects the pin shaft hole M16mm of upper grip head and lower clamp, upper grip head is connected among the pin shaft hole M of lower clamp with bearing pin, make it to have the upper grip head of arranging teeth and can center on activity on the sector face of following block teeth, spring body is stuck in upper grip head and lower clamp junction, because the M distance effect reasonable in design and spring body of being partial to tooth top arc centers in hole is not escaped workpiece on upper grip head V-arrangement teeth and following block teeth arc-shaped tooth in succession.Upper grip head, lower clamp be with the close casting of 35# aluminium, and following block teeth are with 50 chromium manganese hot investment casting moulding, machined after-baking.The utility model clip locking workpiece is firm, and the disengaging workpiece is flexible rapidly, has improved work efficiency greatly.

Claims (3)

1. (1) a kind of pipe vice, it is made up of upper grip head, lower clamp, block teeth, spring, bearing pin and screw; It is characterized in that: its upper grip head is anterior inboard V-shaped, arranging teeth on inboard A face of V-arrangement and the B face, dented 1mm～the 6mm of C face of the pin shaft hole of upper grip head, be spring body circular groove D, one little groove F is arranged in little lower end by handle, one spring body, one end is stuck among the little groove F, the other end is pressed in lower clamp G place, lower clamp K place has a hole with bolt cambered surface teeth piece to be fixed in the groove  of lower clamp upper end, the cambered surface of cambered surface teeth piece is the center with , and the pin shaft hole M that connects upper grip head and lower clamp is partial to the cambered surface addendum line center of cambered surface teeth.
2. (2) according to the described a kind of pipe vice of claim (1), it is characterized in that: the anterior inboard of its upper grip head is V-shaped to be 115 °～135 °, and the anterior angle of V-arrangement medial surface A face and B face teeth is 35 °, and relief angle is 50 °.
3. (3) according to the described a kind of pipe vice of claim (1), it is characterized in that: the cambered surface of cambered surface tooth top is the center with , and the pin shaft hole M that connects upper grip head and lower clamp is partial to the cambered surface addendum line center 13mm～60mm of cambered surface teeth.

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