CN2406744Y

CN2406744Y - Portable hand pipe bender

Info

Publication number: CN2406744Y
Application number: CN 00202735
Authority: CN
Inventors: 庄宗超
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-01-28
Filing date: 2000-01-28
Publication date: 2000-11-22
Anticipated expiration: 2010-01-28

Abstract

The utility model discloses a portable hand pipe bender. The utility model is composed of a jack 1, a tire mold 2, two pressing wheels 3A and 3B, a connecting rod mechanism, two support ears 5A and 5B, and a sleeve ring 6. The fan-shaped tire mold 2 is sheathed on an ejector rod 7 of the jack 1 along the radical direction. When the jack 1 ejects the tire mold 2, the connecting rod mechanism causes the pressing wheels 3A and 3B to press metal pipe material in a groove of the tire mold 2 to shape. The utility model can bend the metal pipe material with the diameter of phi 10-60 mm, and has the characteristics of small volume, light weight, and convenient operation.

Description

A kind of portable manual bending machine

The utility model relates to a kind of portable manual bending machine.

Bending machine is the instrument that is used for the metal pipe material bending, at present the tubing bending is adopted in the machine works mainly contains the pulley bending machine, hydraulic pipe bender, three roller bending machines, their general volumes are big, heavy, be not suitable for the mobile operational process of job site, and in the site operation, often needing the bending diameter is the metal pipe material of φ 10～60mm, what present on-the-spot bend pipe generally used is a kind of lever manual tube bender, and it has a semicircular loose tool, and the fulcrum of lever is positioned at the center of circle of loose tool, also has a pinch roller on the lever, during use, between loose tool and pinch roller, insert tubing, rotating lever, pinch roller is pressed in tubing in the shaping groove of loose tool semi circular surface, forces the tubing bending.This bending machine is owing to adopted leverage, for laborsaving as far as possible, the power arm of lever is made longly, thereby volume is also bigger, and weight is also big, actual measurement weight is 22Kg, cause and carry inconvenience, because power arm can not unrestrictedly extend, operating physical force is still bigger during actual the use simultaneously, thereby the maximum gauge of this bending machine bend pipe is generally φ 22mm, and this moment, operational torque reached 350Nm.

The purpose of this utility model just is to provide a kind of portable manual bending machine, and it should be able to adapt to the bending that diameter is the metal pipe material of φ 10～60mm, and has the advantages that volume is little, in light weight, operation is light.

For achieving the above object, the utility model is by jack, loose tool, two pinch rollers, two slave connecting rod mechanisms, two journal stirrups and the collar are formed, the collar is fixed on the cylinder body of jack head, two journal stirrups are fixed on the both sides of the collar symmetrically, loose tool is fan-shaped, fan-shaped loose tool radially is enclosed within on the push rod of jack along it, each parafacies of two slave connecting rod mechanisms is symmetrically M shape for the center of jack, and loose tool, two pinch rollers, two journal stirrups are clipped in the middle, the lower end of M shape linkage both sides connecting rod is connected with two journal stirrups difference hinges, the fan-shaped centre point hinge of hinge point in the middle of the M shape linkage and loose tool is connected, two hinge points of M shape linkage upper end are connected with the centre point hinge of two pinch rollers respectively, all have circular groove on the periphery of the sector of loose tool and two pinch rollers, the space that the circular groove of loose tool and two pinch rollers forms and the diameter of metal pipe material adapt.

After adopting such structure, owing to adopted the power of jack as the tubing bending, can provide enough driving forces to be used for the bending diameter is the metal pipe material of φ 10～60mm, and the volume of jack own is small and exquisite, in light weight, operate light, thereby it is small and exquisite to make the utility model bending machine also have a volume, in light weight, operate light characteristics, in addition, because the utility model bending machine is to utilize two pinch rollers simultaneously tubing to be pressed in the groove internal shaping of loose tool from both sides, stressed even when making the tubing bending, thereby the wall thickness range broad of the tubing of suitable bending, but the bending wall thickness is the tubing in 0.5～3.5mm scope.

Below in conjunction with the drawings and specific embodiments the utility model portable manual bending machine is further described in detail.

Fig. 1 is the front view of the utility model portable manual bending machine.

Fig. 2 is the left view of Fig. 1.

Fig. 3 is the front view of the utility model portable manual bending machine during with the metal pipe material bending.

Fig. 4 is the cutaway view that loose tool 2 is connected with the push rod 7 of jack 1 in the utility model portable manual bending machine.

Fig. 1 to Fig. 4 has provided a kind of specific embodiment of the utility model portable manual bending machine, it is by jack 1, loose tool 2, two pinch roller 3A and 3B, two 4A of slave connecting rod mechanism and 4B, two journal stirrup 5A and 5B, the collar 6 is formed, jack 1 can adopt screw jack, also can adopt hydraulic jack, the collar 6 is fixed on the cylinder body of jack 1 head, the collar 6 centers are porose, push rod 7 for jack 1 passes through, two journal stirrup 5A and 5B are fixed on the both sides of the collar 6 symmetrically, loose tool 2 is fan-shaped, the string side of fan-shaped loose tool 2 has a radial aperture along fan-shaped symmetry axis, loose tool 2 utilizes this perforate to be enclosed within on the push rod 7 of jack 1, each parafacies of two 4A of slave connecting rod mechanism and 4B is symmetrically M shape for the center of jack 1, and loose tool 2, two pinch roller 3A and 3B, two journal stirrup 5A and 5B are clipped in the middle, the lower end of M shape linkage 4A and 4B both sides connecting rod is connected with 5B difference hinge with two journal stirrup 5A, hinge point in the middle of M shape linkage 4A and the 4B and loose tool 2 fan-shaped centre point hinges are connected, M shape linkage 4A is connected with the centre point hinge of two pinch roller 3A and 3B respectively with two hinge points of 4B upper end, all have circular groove on the periphery of the sector of loose tool 2 and two pinch roller 3A and 3B, the space that the circular groove of loose tool 2 and two pinch roller 3A and 3B forms and the diameter of metal pipe material adapt.During bending tubing, tubing is penetrated between loose tool 2 and two pinch roller 3A and the 3B in position shown in Figure 1, manual operations jack 1 ejects loose tool 2, under M shape linkage 4A and 4B control, pinch roller 3A and 3B will be around the centre point rotations of fan-shaped loose tool 2, thereby remain constant gap between the circular groove on the circular groove of pinch roller 3A and 3B and loose tool 2 sectors, and tubing is pressed in the groove internal shaping of tire horizontal stroke 2, Fig. 3 has provided the schematic diagram of this moment, owing to be manual operations, the bending angle of tubing is control easily also, after the bending, with jack 1 unloading, this moment, loose tool 2 and two pinch roller 3A and 3B all resetted, and can be easily the tubing of bending be taken out from the outside of any one pinch roller.Because during real work, the pipe diameter, the radius bend difference that need bending, so loose tool 2 need be made into one group of different radii, different big or small groove shapes, two pinch roller 3A and 3B also need be made into different radii, different big or small groove shapes one group, to adapt to actual bending requirements of one's work, correspondingly, also have several standby holes on the connecting rod of linkage 4A and 4B, like this, pinch roller 3A and 3B hinge can be connected on the standby hole in case of necessity, with loose tool and the pinch roller that adapts to different radii, different big or small groove shapes in a group.

Claims

1, a kind of portable manual bending machine, have fan-shaped loose tool (2) and pinch roller, all have circular groove on the sector of loose tool (2) and the periphery of pinch roller, utilize pinch roller metal pipe material to be pressed in the groove internal shaping of loose tool (2), it is characterized in that: its bending power is jack (1), on the cylinder body of jack (1) head, fixing the collar (6) of a center drilling, two journal stirrups (5A) and (5B) be fixed on the both sides of the collar (6) symmetrically, fan-shaped loose tool (2) radially is enclosed within on the push rod (7) of jack (1) along it, it has two pinch rollers that are used to be shaped (3A) and (3B), it also has two slave connecting rod mechanisms (4A) and (4B), each slave connecting rod mechanism is symmetrically M shape with respect to the center of jack (1), and loose tool (2), two pinch rollers (3A) and (3B), two journal stirrups (5A) and (5B) be clipped in the middle, the lower end of M shape linkage (4A) and (4B) both sides connecting rod is connected with (5B) difference hinge with two journal stirrups (5A), the fan-shaped centre point hinge of hinge point in the middle of M shape linkage (4A) and (4B) and loose tool (2) is connected, M shape linkage (4A) is connected with the centre point hinge of two pinch rollers (3A) and (3B) respectively with two hinge points of (4B) upper end, and the space that loose tool (2) and two pinch rollers (3A) and circular groove (3B) form and the diameter of metal pipe material adapt.

2, a kind of portable manual bending machine according to claim 1 is characterized in that: described jack (1) is a hydraulic jack.