CN101549374A

CN101549374A - Manual tube bender

Info

Publication number: CN101549374A
Application number: CNA2009101333769A
Authority: CN
Inventors: 何塞·伊格纳西奥·皮扎卡·伊瓦龙多
Original assignee: ROTENBERGER CO Ltd
Current assignee: ROTENBERGER CO Ltd; Rothenberger SA
Priority date: 2008-04-04
Filing date: 2009-04-07
Publication date: 2009-10-07
Anticipated expiration: 2029-04-07
Also published as: ES2378316T3; CN101549374B; TW201006584A; EP2106864A2; EP2106864B1; ATE532588T1; TWI378000B; EP2106864A3; ES2367489B1; ES2367489A1

Abstract

A hand pipe bender totally adopts mechanical principle, which can bend the pipe only by single hand operation. The hand pipe bender has a main armature with a mold component, wherein, a operating handle is hinged on the armature, the main armature comprises a head for mold component and a gripwith a spline, and the head and the grip are tightly assembled together by sets of coadjacent conjugated socket rods and socket housings. The inventions solves the complicated structure, unworkability and the like problems of the prior pipe bender, the mold component and the pipe bender can be different according to the different pipe diameters of the pipe required to bend. The bender and the mold component can be rapidly and expediently replaced by meshed devices.

Description

Manual tube bender

Technical field

The present invention relates to a kind of manual tube bender that pipe is carried out bending.

Background technology

Under present technical conditions, we can see several dissimilar and bending machines structure, and these bending machines can be referring to patent EP0484155, U1051854 and U1027314 (last is the applicant's a patent).

With the manual tube bender of ratchet mechanical device, be exactly wherein a kind of in addition as what in patent U1048567, mention.

Existing electronic, or hydraulic pressure, or need the with the hands bending machine of operation, still an open question is a complex structure, not easy to operate.

The patent of invention content

The objective of the invention is to disclose a kind of bending machine that solves these problems, it adopts theory of mechanics fully, only needs use one-handed performance, just pipe can be carried out bending and unclamps.

The structure of manual tube bender of the present invention is the main engine bed of a band die assembly, is hinged with a control crank on the main engine bed, it is characterized in that:

A) main engine bed is made up of the support head of a dress die assembly and the support handle of support ratchet axle, and support head and support handle pass through bindiny mechanism's close fit together, the interconnected shank of several covers of this bindiny mechanism and the cover of pegging graft;

B) ratchet axle bridge piece device, and linear mobile with respect to support handle and support head, and ratchet axle two opposite sides are provided with tooth bar;

C) a unidirectional propelling movement ratchet is arranged, propelling movement ratchet and tooth bar mesh or unclamp, and push ratchet and are hinged on the control crank;

D) a unidirectional braking ratchet is arranged, braking ratchet and tooth bar mesh or unclamp, and the braking ratchet is hinged on the support handle;

E) have a stiff spring at least, both ends of the spring is hooked on respectively on support handle and the ratchet axle, and the effect of spring can make ratchet axle withdrawal initial position;

F) by meshing mechanical device fast, can change pipe bender and die assembly.

The invention solves present bending machine complex structure, not easy-operating problem, one-handed performance bending machine of the present invention can carry out bending to pipe fitting.According to any embodiment of design of the present invention,, be included in protection scope of the present invention as long as embodiment does not have conversion, change and modification marrow of the present invention.

In order to understand purpose of the present invention better, be elaborated to of the present invention by specific embodiment in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 structural representation of the present invention.

The front elevation of Fig. 2 bending machine shown in Figure 1.

Fig. 3 overall profile as shown in Figure 2.

The partial view of Fig. 4 bending machine shown in Figure 1 bottom.

The part sectioned view that Fig. 5 is shown in Figure 4.

Fig. 6 overall profile as shown in Figure 3.

The specific embodiment

The embodiments of the invention of introducing below are actual practice, and it can not limit protection scope of the present invention.

The structure of bending machine is exactly the integrating device of a main engine bed support die assembly S.The hinged A1 of main engine bed is on control crank 5, and device appearance looks like pliers or vice, sees Fig. 1.

Main engine bed is made up of with the support handle 12 of dress ratchet axle 3 the support head 11 that a dress die assembly S uses, dress pipe bender C on the ratchet axle.

By the engagement mechanical device, can change die assembly S and pipe bender C quickly, will describe in detail thereafter.

Support head 11 and support handle 12 are assembled together by equipment series, and these devices are that shank 13 that is arranged in support head 11 and support handle 12 and the grafting that is arranged in support head 11 and support handle 12 closely packed that is locked is joined and linked together, referring to Fig. 6.

According to the present invention with shown in the embodiment, ratchet axle 3 can move with respect to support handle 12 front and back are linear, these relative both sides of ratchet axle are provided with

tooth bar

31,32, ratchet axle front end is installed pipe bender C, the ratchet shaft rear end has a spring 4, the spring contraction can make ratchet axle 3 get back to initial position, and this both ends of the

spring

41,42 is hooked on respectively on main frame pedestal 1 and the ratchet axle 3, sees Fig. 3.

A unidirectional propelling movement ratchet 6 is connected on the support handle 12 by hinged A2, pushes ratchet 6a by control crank 5 or spring 61 and meshes with tooth bar 31 on the ratchet axle 3 or unclamp, and sees Fig. 3.

Stiff spring 7 two

ends

71 and 72 are hooked on respectively on foundation mass and the jointed shaft A2, and the effect of stiff spring 7 can make control crank 5 and push ratchet 6 withdrawal initial rest position, sees Fig. 3.

Two stiff springs 4 and 7 all by buckle closure in handle lid 12a the inside, lid is installed on the support handle with screw 121, sees Fig. 3.Stiff spring 4 and 7

end

41,71 separately is mounted on the support handle 12, still handle lid 12a is fine, and sees Fig. 3.

Equally, control crank 5 is to be hinged on the support handle 12, or handle lid 12a is unessential, and control crank 5 is hinged on the support handle 12 in other words, also can be hinged on the handle lid 12a.As shown in Figure 3, control crank 5 is hinged on the handle lid 12a

On support handle 12, one-way brake ratchet 2 is hinged by A3, and braking ratchet 2 has braking ratchet 2a and a spring 21, push spring 21, braking ratchet 2 is rotated on jointed shaft A3, the tooth bar 32 of braking ratchet 2a and ratchet axle 3 is meshed or unclamp, see Fig. 3.

The bend S1 of die assembly S and the bend C1 of pipe bender are fixed together, as required the difference of Wan Qu pipe caliber and difference.

Mechanical device by engagement efficiently can be changed die assembly S and pipe bender C easily.This mechanical device is made up of following parts:

-pipe bender C and die assembly S, an end has bolt T and coaxial spring composition of latch P.

-access portal 01 is arranged on machine frame head, opening part has the slot 02 that is interconnected, and P stretches out round about from latch.

Install or to unload this mechanical device efficient and convenient, only need insert latch P in the slot, latch is revolved the effect that just can keep spring R that turn 90 degrees.

Claims

1, a kind of manual tube bender, by the main engine bed of a band die assembly (S), main engine bed is hinged with a control crank (5) by hinge (A1) to be formed, and it is characterized in that:

A) main engine bed is made up of the support head (11) of a dress die assembly (S) and the support handle (12) of support ratchet axle (3), support head (11) passes through bindiny mechanism's close fit together with support handle (12), and this bindiny mechanism is the interconnected shank of several covers (13) and the cover (14) of pegging graft;

B) this ratchet axle (3) supports pipe bender (C) and linear mobile with respect to support head (11) and support handle (12); Ratchet axle (3) two opposite sides are provided with tooth bar (31) (32);

C) a unidirectional propelling movement ratchet (6) is arranged, mesh with tooth bar (31) on the ratchet axle (3) or unclamp, push ratchet (6) and be hinged on the control crank (5) by hinge (A2);

D) a unidirectional braking ratchet (2) is arranged, mesh with tooth bar (32) on the ratchet axle (3) or unclamp, braking ratchet (2) is hinged on the support handle (12) by hinge (A3);

E) have a stiff spring (4) at least, both ends of the spring (41) (42) is hooked on respectively on support handle (12) and the ratchet axle (3), and the effect of spring can make ratchet axle (3) withdrawal initial position;

F) by meshing mechanical device fast, can change pipe bender (C) and die assembly (S) easily.

2, manual tube bender according to claim 1, it is characterized in that pushing ratchet (6) stiff spring (7) is arranged, stiff spring (7) two ends (71) (72) are hooked on respectively on the axle of foundation mass and hinge (A2), can make control crank (5) be withdrawn into initial position.

3, manual tube bender according to claim 1 and 2 is characterized in that: support handle (12) has a lid (12a), and stiff spring (4) (7) is contained in the lid the inside.

4, manual tube bender according to claim 1, it is characterized in that: pushing ratchet (6) has a coaxial arm spring (61) on the axle of its hinge (A2), when control crank (5) when being in releasing orientation, the effect of spring can make and push ratchet (6) and unclamp from tooth bar (31).

5, manual tube bender according to claim 1, it is characterized in that on braking ratchet (2), a unidirectional braking ratchet (2a) and a spring (21) being arranged, push spring the braking ratchet is rotated on the axle of hinge A3, the tooth bar of braking ratchet and ratchet axle is meshed or unclamp.

6, manual tube bender according to claim 1, the bend (C1) that it is characterized in that die assembly (S) and pipe bender (C) (S1) assemble and link together, the difference of crooked as required pipe caliber and difference.

7, manual tube bender according to claim 1 is characterized in that the mechanical device that meshes is made up of following parts:

A) pipe bender (C) and die assembly (S), an end has bolt T and coaxial spring composition of latch P;

B) access portal (O1) is arranged on machine frame head (11), opening part has the slot (O2) that is interconnected, and (P) stretches out round about from latch;

Install or to unload this mechanical device efficient and convenient, only need insert latch (P) in the slot, latch is revolved the effect that just can keep spring (R) that turn 90 degrees.

8, manual tube bender according to claim 3 is characterized in that: control crank (5) is hinged in the lid (12a) of support handle (12) by hinge (A1).

9, manual tube bender according to claim 3 is characterized in that: an end (71) of stiff spring (7) is hooked in the lid (12a) of support handle (12).