CN202271534U - Crimper - Google Patents

Abstract

The utility model discloses a crimper, which comprises a fixed rod and a movable rod. The movable rod is inserted into the horizontal guide hole of the fixed rod and can horizontally move relative to the fixed rod. One end of the movable rod is provided with a movable head which stretches outwards. A fixed head which stretches outwards is installed at the corresponding end of the fixed rod through a detachable structure. The fixed head and the movable head form a pair of crimping heads. Corresponding U-shaped clamping grooves are respectively arranged on the crimping heads. The fixed head which is installed at the end part of the fixed rod and the movable rod which is inserted into the horizontal guide hole of the fixed rod can be replaced according to different pipe diameters. By replacing the fixed head and the movable rod, one crimper can meet the installation demands of pipes with different diameters. When a pipeline system is installed, an installer is only required to carry with one crimper, several fixed heads with U-shaped clamping grooves with different sizes and several movable rods with U-shaped clamping grooves with different sizes, the handling burden and the tool cost burden of the installer can be reduced and the universality is good.

Description

A kind of crimper

Technical field

When the present invention relates to plastic tube and metallic pipe coupling and adopting cold expansion formula connected mode, the banding ring is pushed to the erecting tools on the plastic tube flared section, particularly a kind of crimper.

Background technology

In the family expenses supply channel; The pipeline of plastics and the pipe joint of metal can adopt cold expansion formula connected mode; Be about to the linkage section enlarging at normal temperatures (cold expansion) of plastic tube; In the plastic tube linkage section after the linkage section insertion enlarging of metallic pipe coupling, then becket is pushed into outside the linkage section of plastic tube, thereby with plastic tube and metallic pipe coupling banding.For make between plastic tube and the metal tube be connected can be closely reliable; Need to adopt interference fit between becket and the plastic tube; This makes becket is pushed on the linkage section of plastic tube enlarging and need applies a very big power to becket, and becket is very thin usually, and staff is difficult to the application of force.For the ease of promoting becket, need to use special crimper usually.Existing crimper like Fig. 1, comprises and decides bar 1a and moving bar 2a, decides bar and is provided with horizontal guide hole; Moving bar inserts in the horizontal guide hole removable, and there are fixed handle 3a that fixes with it and the pressing handle 4a that is hinged through rotating shaft with it in the below of deciding bar, and the rotating shaft of pressing handle is set with gear 5a outward; The below of deciding bar is provided with the tooth bar 6a that matches, gear and tooth bar, swing pressing handle; Gear can be followed rotation, moves along horizontal guide hole thereby drive moving bar, and there is a 7a end of moving bar; Decide bar and at the end near moving head a fixed 8a is set, moving head is provided with U type draw-in groove, and fixed head is provided with the U type draw-in groove that matches with it.When the U type draw-in groove that moves bar is stuck in the step place of becket side and metallic pipe coupling with the U type draw-in groove of deciding bar; Through the swing pressing handle, gear rotates, and drives tooth bar and moves; The fixed relatively head of head is moved horizontally, thus enlarging place that can becket be passed plastic tube.Because the handle side arm of force much larger than the arm of force of tooth bar, therefore can promote becket more easily.Yet, the U type draw-in groove fixed size of fixed head of above-mentioned crimper and moving head, it only can be applicable to a kind of installation of pipeline of caliber, for the pipeline of different tube diameters, needs to use different crimpers, versatility is relatively poor.

At present, in the general usually water system, all to comprise the pipeline of plurality of specifications.The caliber specification that crimper is single makes the workman that a common pipe-line system is installed, and need carry manyly crimper, and the weight of each compactor is not light, this extra carrying burden that has increased the installer.In addition, the value of each crimper is not low yet, and this has also increased the burden of erecting tools cost.

Summary of the invention

The utility model is intended to provide and a kind ofly can adapts to multiple caliber needs, crimper that versatility is good, to reduce installer's carrying burden and instrument cost burden.

The described crimper of the utility model comprises and decides bar and moving bar, decides bar and is provided with horizontal guide hole, can move horizontally in the moving horizontal guide hole of bar insertion; Decide the pressing handle that the below of bar is extended with fixed handle and is hinged through rotating shaft, the rotating shaft of pressing handle is installed with gear outward, and during the swing pressing handle, gear can be followed rotation; The bottom side of deciding bar is provided with tooth bar, and rack and pinion is meshed; It is characterized in that: an end of moving bar is provided with outwardly directed moving head, decides the corresponding end of bar and through dismountable structure the outwardly directed head of deciding is installed, and fixed head constitutes a pair of hold-down head with moving head, and corresponding U type draw-in groove is set respectively on it.

The described crimper of the utility model; Its fixed head is installed in through dismountable structure to be decided on the bar; Deciding the fixed head of boom end can change according to the difference of caliber; And the moving bar that inserts in the horizontal guide hole of deciding bar can be changed equally, and therefore through changing fixed head and moving bar, an one of which crimper is the installation needs of applicable different tube diameters.During the installation pipeline system, installation personnel only need carry the fixed head of a crimper, several sizes U type draw-in groove and the moving bar of several sizes U type draw-in groove gets final product, and it can reduce installer's carrying burden and instrument cost burden, and versatility is good.

Description of drawings

The structural representation of a kind of existing crimper of Fig. 1;

The structural representation of the described crimper of Fig. 2 the utility model.

The specific embodiment

A kind of crimper like Fig. 2, comprises and decides bar 1 and moving bar 2, decides bar and is provided with horizontal guide hole, can move horizontally in the moving horizontal guide hole of bar insertion; Decide the pressing handle 4 that the below of bar is extended with fixed handle 3 and is hinged through rotating shaft, the rotating shaft of pressing handle is installed with gear 5 outward, and during the swing pressing handle, gear can be followed rotation; The bottom side of deciding bar is provided with tooth bar 6, and rack and pinion is meshed; One end of moving bar is provided with outwardly directed moving 7, decides the corresponding end of bar and is provided with outwardly directed fixed 8, and fixed head is installed in through dismountable structure to be decided on the bar.Said dismountable structure comprises that the both sides, front and back of the end of deciding bar are provided with projection 9; The corresponding grooves 10 that the both sides, front and back of fixed head are provided with; Through deciding head under the top cover of deciding boom end, groove is blocked decide the projection of bar, be fixed on the end of deciding bar thereby will decide head; Make it constitute a pair of hold-down head with moving, fixed head is provided with corresponding U type draw-in groove 11 respectively with moving on the head.

On said dismountable fixed head tapped through hole can be set, bolt screws in wherein, and its end is pressed on decides on the bar side,

Through regulating the bolt in the tapped through hole, scalable is decided head and is decided the tightness that boom end is connected, and fixed head and the fixing and dismounting of deciding boom end are helped out.

During work; Fixed 8 U type draw-in groove with moving 7 is stuck in the both sides of becket and metallic pipe coupling, swings pressing handle, through gear, tooth bar transmission; Bar is moved horizontally along horizontal guide hole; Thereby the fixed relatively head of head is moved horizontally, becket is pushed on the flared section of plastic tube, thereby is pressed on plastic tube and metallic pipe coupling.

Saidly decide headgear and be contained on the end of deciding bar, can dismantle easily and install; Insert the moving bar decide in the horizontal guide hole of bar and also can be convenient for changing,, can make crimper adapt to the demand of the pipe fitting installation of different size through changing deciding bar and deciding head of U type draw-in groove with different size simultaneously.

Between fixed handle and the pressing handle torsion spring can be installed, torsion spring makes crimper when user mode not, and the open-shaped naturally attitude of fixed handle and pressing handle is more convenient for compressing operation.Simultaneously, after it also made end of operation, during release handle, two handles can automatically reset, thus convenient operation next time.

Said fixed head also can be enclosed within the end of deciding bar, fastens through screw threads and is deciding on the bar.

Claims (4)

1. a crimper comprises and decides bar and moving bar, decides bar and is provided with horizontal guide hole, can move horizontally in the moving horizontal guide hole of bar insertion; Decide the pressing handle that the below of bar is extended with fixed handle and is hinged through rotating shaft, the rotating shaft of pressing handle is installed with gear outward, and during the swing pressing handle, gear can be followed rotation; The bottom side of deciding bar is provided with tooth bar, and rack and pinion is meshed; It is characterized in that: an end of moving bar is provided with outwardly directed moving head, decides the corresponding end of bar and through dismountable structure the outwardly directed head of deciding is installed, and fixed head constitutes a pair of hold-down head with moving head, and corresponding U type draw-in groove is set respectively on it.

2. crimper according to claim 1; It is characterized in that: dismountable structure of deciding the corresponding end of bar comprises that deciding these both sides, end front and back of bar is provided with projection; The both sides, front and back of fixed head be provided with the projection corresponding grooves; Decide head-shield in deciding this end of bar, groove blocks the projection of deciding bar, fixed head is fixed on decides on the bar.

3. crimper according to claim 1 is characterized in that: said fixed head is provided with tapped through hole, and bolt screws in the tapped through hole, and the end of bolt is pressed on decides on the bar side.

4. crimper according to claim 1 is characterized in that: between fixed handle and the pressing handle torsion spring is installed.

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