CN210211340U

CN210211340U - Pipe bending mechanism and pipe bending machine

Info

Publication number: CN210211340U
Application number: CN201920640508.6U
Authority: CN
Inventors: Zunjun Wang; 王尊军; Manlong Chen; 陈满龙
Original assignee: Beijing Sheng Hong Extension Technology Co Ltd
Current assignee: Beijing Sheng Hong Extension Technology Co Ltd
Priority date: 2019-05-06
Filing date: 2019-05-06
Publication date: 2020-03-31
Anticipated expiration: 2029-05-06

Abstract

The utility model discloses a pipe bending mechanism, which relates to the technical field of floor heating construction and comprises a moving block and a lead screw which are matched with each other; two ends of the screw rod are rotatably connected with a first supporting piece and a second supporting piece; the first swing rod, the second swing rod and the pipe clamp are symmetrically arranged on two sides of the axis of the lead screw, the planes of the first swing rod and the second swing rod are parallel to each other, and the first swing rod is hinged with the supporting piece and fixed with the pipe clamp; two ends of the swing rod II are hinged with the pipe clamp and the moving block; the pipe clamp comprises a bottom piece and a fastener, wherein the fastener is movable and can enable the PERT pipe to be removed from the position between the fastener and the bottom piece; when the two swing rods I are parallel, the PERT pipe can pass through the two pipe clamps along a straight line and does not interfere with the support piece I and the swing rods I. The utility model discloses have the effect that can force the bending of PERT pipe. The utility model also discloses a bending machine, including the aforesaid return bend mechanism, there is the supporting leg at support piece one and support piece two's bottom mounting. It not only forces the PERT tube to bend, but it also facilitates the operation of the worker.

Description

Pipe bending mechanism and pipe bending machine

Technical Field

The utility model belongs to the technical field of the technique of warm up construction and specifically relates to a bending machine is related to.

Background

A PERT pipe and a water separator are used when laying a floor heater. The delivery port of water knockout drum is higher than the bottom surface, in order to draw the pipeline to subaerial, need bend the PERT pipe, changes the direction of delivery of pipeline.

Since the PERT pipe has elastic force to be restored after bending, stress is generated at a joint of the pipes if constraint against deformation is not applied, and the pipes are easily damaged for a long time.

In the prior art, a bender is typically used to constrain the PERT tube. Referring to fig. 4 and 5, tube bender 9 includes a tubular member 91 having a circular arc shape and an annular sleeve 92. A rectangular opening 911 is arranged on one side of the pipe bender 9 away from the center of circle, and the opening 911 is communicated with one end face of the pipe bender 9. In use, the PERT tube 100 is passed through the tubular member 91, a force is applied to the PERT tube 100 forcing the PERT tube 100 to bend and conform to the inner wall surface of the tubular member 91, and then the sleeve 92 is fitted over the tubular member 91, thereby applying a constraint to the PERT tube 100 against deformation.

However, bending the PERT tube 100 is mostly performed manually, which causes a high labor intensity for workers and is inconvenient for the operation of sleeving the sleeve 92.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a return bend mechanism, it has the effect that can force the bending of PERT pipe.

The above object of the present invention can be achieved by the following technical solutions:

a pipe bending mechanism comprises a moving block and a lead screw, wherein the lead screw penetrates through the moving block and is in threaded connection with the moving block; two ends of the screw rod are respectively connected with a first supporting piece and a second supporting piece in a rotating mode, and one end, far away from the first supporting piece, of the screw rod penetrates through the second supporting piece to extend out and is fixedly provided with a rocking handle; the two sides of the axis of the screw rod are symmetrically provided with a first swing rod, a second swing rod and a pipe clamp, the planes of the first swing rod and the second swing rod are parallel to each other, one end of the first swing rod is hinged with the supporting piece, and the other end of the first swing rod is fixedly connected with the pipe clamp; two ends of the swing rod II are respectively hinged with the pipe clamp and the moving block; the pipe clamp comprises a bottom piece and a fastener, wherein the bottom piece is matched with the fastener to clamp the PERT pipe, and the fastener is movable and can enable the PERT pipe to be removed from the space between the fastener and the bottom piece; when the two swing rods I are parallel, the PERT pipe can pass through the two pipe clamps along a straight line and does not interfere with the support piece I and the swing rods I.

By adopting the technical scheme, the rocking handle drives the screw rod to rotate, the moving block is forced to move along the axial direction of the screw rod, and the moving block moves to drive the swing rod II, the pipe clamp and the swing rod I to move. When the moving block moves towards the second supporting piece, the distance between the two symmetrically arranged pipe clamps is reduced, and the included angle between the PERT pipe clamped by the housekeeper and the lead screw is changed, so that the PERT pipe is forced to bend and deform. The adopted lead screw and the rocking handle can play a role in saving labor.

The utility model discloses further set up to: the fastener is hinged with the bottom piece, and a hinged shaft is parallel to the first swing rod; and the fastener and the bottom piece are detachably fixed on the other side of the first swing rod, which deviates from the hinged shaft.

By adopting the technical scheme, when the PERT pipe is bent, the fastener is fixed with the bottom piece; when the PERT pipe needs to be removed, the fastener is rotated around the hinge shaft, so that space is provided for the removal of the PERT pipe, and the connected bottom piece and the fastener also reduce the storage cost.

The utility model discloses further set up to: an optical axis parallel to the lead screw is fixed between the first supporting piece and the second supporting piece, and the optical axis penetrates through the moving block and is connected with the moving block in a sliding mode.

By adopting the technical scheme, the optical axis can provide the anti-torque for the moving block in the moving process of the moving block, so that the stress on the first swing rod, the second swing rod and the pipe clamp can be reduced.

The utility model discloses further set up to: two convex blocks extend out of one side of the support piece, which faces to the first swing rod, are located on one side, away from the second swing rod, of the first swing rod, and when the first swing rods rotate to be parallel to the second swing rod, the first swing rods and the two convex blocks are abutted to each other respectively.

By adopting the technical scheme, when the PERT pipe needs to penetrate through the two pipe clamps, the two swing rods need to be rotated to be parallel. When the convex block abuts against the first swing rod, the two first swing rods can be parallel, and the convex block can also limit the rotating interval of the first swing rod, so that the swing rod is prevented from rotating towards one side away from the second supporting piece.

The utility model discloses further set up to: the fastener is fixed with the bottom piece through a bolt.

Through adopting above-mentioned technical scheme for fixed knot constructs simply.

The utility model discloses further set up to: the bolt is a shoe-shaped gold ingot bolt.

Through adopting above-mentioned technical scheme, need not be with the help of the instrument, the workman can directly twist the ingot bolt for the site operation installation can be simple quick more.

Another object of the present invention is to provide a pipe bender which not only can force the PERT pipe to bend, but also is convenient for the worker to operate.

A pipe bending machine comprises the pipe bending mechanism, and supporting legs are fixed at the bottom ends of the first supporting piece and the second supporting piece.

Through adopting above-mentioned technical scheme, after elevating supporting mechanism, the workman of being convenient for operates.

The utility model discloses further set up to: the supporting leg comprises a vertically arranged I-shaped steel and a supporting flat plate fixed at the bottom end of the I-shaped steel.

Through adopting above-mentioned technical scheme, the I-steel has better stability to the low price, simultaneously, the support plate can make the supporting leg more stable.

To sum up, the utility model discloses a beneficial technological effect does:

1. the lead screw drives the motion block to move, so that the swing rod I, the swing rod II and the pipe clamps are driven to move, and the PERT pipe clamped between the two pipe clamps can be forced to bend;

2. by arranging the optical axis, the optical axis can provide a torque for the moving block in the moving process of the moving block, so that the stress on the swing rod I, the swing rod II and the pipe clamp can be reduced;

3. through setting up the lug, two pendulum rods one can be guaranteed when lug and pendulum rod one offset to the lug can also restrict the rotation interval of pendulum rod one, avoids the pendulum rod to deviate from one side rotation of support piece two earlier on.

Drawings

FIG. 1 is a schematic structural view of a tube bending mechanism;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is an enlarged view of a portion of FIG. 1 at B;

FIG. 4 is a schematic view of the working state of the bending machine;

FIG. 5 is a schematic view of a tube bender;

fig. 6 is a schematic structural view of the pipe bender in an operating state.

In the figure, 1, a screw; 11. a rocking handle; 2. a motion block; 31. a first support part; 311. a bump; 32. a second support part; 41. a first swing rod; 42. a second swing rod; 5. a pipe clamp; 51. a bottom piece; 52. a fastener; 6. a shoe-shaped gold ingot bolt; 7. an optical axis; 8. supporting legs; 81. i-shaped steel; 82. supporting the flat plate; 9. a pipe bender; 91. a tubular member; 911. an opening; 92. a kit; 100. a PERT tube; 200. and a through hole.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The first embodiment is as follows:

referring to fig. 1, the utility model discloses a pipe bending mechanism, including lead screw and motion piece 2. The screw rod 1 penetrates through the moving block 2 and is in threaded connection with the moving block 2. The two ends of the screw rod 1 are respectively connected with a first supporting piece 31 and a second supporting piece 32 in a rotating mode. One end of the screw rod 1, which is far away from the first support piece 31, penetrates through the second support piece 32 to extend out and is fixed with a rocking handle 11. Rotating the rocking handle 11 will rotate the screw 1.

The two sides of the axis of the screw rod 1 are symmetrically provided with a first swing rod 41, a second swing rod 42 and a pipe clamp 5. The pipe clamp 5 comprises a base member 51 and a fastening member 52. The opposite surfaces of the bottom piece 51 and the fastener 52 are respectively provided with a semi-cylindrical surface. The two semi-cylindrical faces, when joined together, form a through-hole 200 capable of holding the PERT tube 100. One end of the fastener 52 is hinged with the bottom piece 51, and the hinged shaft is parallel to the axis of the through hole 200; the other end is connected with the bottom piece 51 through a shoe-shaped bolt 6, and the shoe-shaped bolt 6 penetrates through the fastener 52 and is screwed in the bottom piece 51. When the shoe-shaped bolt 6 connects the bottom piece 51 with the fastener 52, the bottom piece 51 and the fastener 52 clamp the PERT pipe 100; when the shoe-shaped bolt 6 is removed and the fastener 52 is rotated, the PERT tube 100 can be removed from between the base member 51 and the fastener 52.

One end of the first swing rod 41 is hinged to the upper surface of the first support piece 31, and a hinged shaft is vertically arranged; the other end of the first swing rod 41 is connected with the bottom piece 51 in a welding mode. The first swing rod 41 is arranged parallel to the axis of the through hole 200. When the pipe clamp 5 clamps the PERT pipe 100, the PERT pipe 100 is located above the swing link one 41 and does not interfere with the swing link one 41 and the support one 31. Two ends of the second swing rod 42 are respectively hinged with the bottom piece 51 and the moving block 2, and the hinged shaft is also vertically arranged.

When the screw rod 1 rotates, the moving block 2 is driven to move along the axial direction of the screw rod 1, and the moving block 2 moves to drive the second swing rod 42, the pipe clamp 5 and the first swing rod 41 to move. When the moving block 2 moves towards the second support member 32, the distance between the two symmetrically arranged pipe clamps 5 will be reduced, and at the same time, the two pipe clamps 5 move towards the side where the second support member 32 is located, and the included angle between the axis of the through hole 200 and the lead screw 1 will also be changed, so that the PERT pipe 100 clamped by the pipe clamps 5 is forced to bend and deform. The adopted lead screw 1 and the rocking handle 11 can play a role in saving labor.

Two optical axes 7 are welded between the first support member 31 and the second support member 32. The optical axis 7 is symmetrically arranged below the screw rod 1 and is parallel to the screw rod 1. The optical axis 7 penetrates through the moving block 2 and is connected with the moving block 2 in a sliding mode. The optical axis 7 can provide a torque to the moving block 2 during the moving process of the moving block 2, so that the stress on the first swing link 41, the second swing link 42 and the pipe clamp 5 can be reduced.

Two bumps 311 are welded on the upper surface of the first support 31. The convex block 311 is located on a side of the first swing link 41 away from the second support member 32. When the two swing rods 41 rotate to be parallel, the two swing rods 41 respectively abut against the convex blocks 311. When the convex block 311 abuts against the first swing rods 41, the two first swing rods 41 can be ensured to be parallel, and the convex block 311 can also limit the rotating interval of the first swing rods 41, so that the first swing rods 41 are prevented from rotating towards the side away from the second support piece 32.

When the PERT tube 100 needs to be bent, the two swing rods 41 are rotated to be parallel, then the PERT tube 100 passes through the two through holes 200, the pipe bender 9 is sleeved on the PERT for viewing, and the opening 911 faces to the side away from the support member 32. The shaking forces the PERT tube 100 to bend until it conforms to the tubular member 91, and then the sleeve 92 is fitted over the tubular member 91 to exert a constraint on the PERT tube 100. The PERT tube 100 can be removed by removing the shoe-shaped bolt 6 and rotating the fastener 52.

Example two:

referring to fig. 2, a bending machine includes a bending mechanism according to the first embodiment. And support legs 8 are fixed on the lower surfaces of the first support piece 31 and the second support piece 32. The supporting leg 8 comprises a vertically arranged I-shaped steel 81 and a horizontally arranged supporting flat plate 82 welded at the bottom end of the I-shaped steel 81, and the I-shaped steel 81 is connected with the first supporting piece 31 and the second supporting piece 32 in a welding mode. After the pipe bending mechanism is elevated, the operation of workers is convenient.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A pipe bending mechanism is characterized in that: the device comprises a motion block (2) and a lead screw (1), wherein the lead screw (1) penetrates through the motion block (2) and is in threaded connection with the motion block (2); two ends of the screw rod (1) are respectively connected with a first supporting piece (31) and a second supporting piece (32) in a rotating mode, and one end, far away from the first supporting piece (31), of the screw rod (1) penetrates through the second supporting piece (32) to extend out and is fixedly provided with a rocking handle (11);

a first swing rod (41), a second swing rod (42) and a pipe clamp (5) are symmetrically arranged on two sides of the axis of the screw rod (1), the planes where the first swing rod (41) and the second swing rod (42) are located are parallel to each other, one end of the first swing rod (41) is hinged with the first support piece (31), and the other end of the first swing rod (41) is fixedly connected with the pipe clamp (5); two ends of the second swing rod (42) are respectively hinged with the pipe clamp (5) and the moving block (2);

the pipe clamp (5) comprises a bottom piece (51) and a fastener (52), wherein the bottom piece (51) is matched with the PERT pipe (100) to be clamped, and the fastener (52) is movable and can enable the PERT pipe (100) to be removed from a position between the fastener (52) and the bottom piece (51); when the two swing rods (41) are parallel, the PERT pipe (100) can pass through the two pipe clamps (5) along a straight line and does not interfere with the support pieces (31) and the swing rods (41).

2. The tube bending mechanism according to claim 1, wherein: the fastener (52) is hinged with the bottom piece (51), and a hinge shaft is parallel to the first swing rod (41); and the fastener (52) and the bottom piece (51) are detachably fixed on the other side of the first swing rod (41) departing from the hinge shaft.

3. The tube bending mechanism according to claim 1, wherein: an optical axis (7) parallel to the lead screw (1) is fixed between the first supporting piece (31) and the second supporting piece (32), and the optical axis (7) penetrates through the moving block (2) and is connected with the moving block (2) in a sliding mode.

4. The tube bending mechanism according to claim 1, wherein: two protruding blocks (311) extend out of one side of the supporting piece, which faces to the first swing rod (41), the protruding blocks (311) are located on one side, away from the second swing rod (42), of the first swing rod (41), and when the first swing rods (41) are rotated to be parallel, the first swing rods (41) and the two protruding blocks (311) are respectively abutted.

5. The tube bending mechanism according to claim 2, wherein: the fastener (52) is fixed to the base member (51) by a bolt.

6. The tube bending mechanism according to claim 5, wherein: the bolt is a shoe-shaped gold ingot bolt (6).

7. A bending machine, its characterized in that: comprises the pipe bending mechanism according to any one of claims 1 to 6, wherein a support leg (8) is fixed at the lower end of the first support member (31) and the second support member (32).

8. The bender according to claim 7, wherein: the supporting legs (8) comprise vertically arranged I-shaped steel (81) and supporting flat plates (82) fixed at the bottom ends of the I-shaped steel (81).