Pipe bending device for construction

Abstract

The application provides a pipe bending equipment for building construction, which comprises a bending rack assembly and an inner supporting mechanism, the bending rack assembly comprises a main rack, a pipe bending rack and two storage racks, the pipe bending rack is installed on one side of the main rack, the two storage racks are both installed on the inner side wall of the main rack, the inner supporting mechanism is installed on one side of one of the storage racks, and an inner supporting driving mechanism is installed on the other side of the storage rack, the pipe to be bent is sleeved on the outer side wall of the inner supporting mechanism, then the inner supporting mechanism is driven by the inner supporting driving mechanism to contract, so that the outer diameter of the inner supporting mechanism is changed and the inner wall of the pipe is fully attached to the inner supporting mechanism, when the pipe is bent by the pipe bending mechanism, the inner wall of the pipe is supported by the inner supporting mechanism, the deformation problems such as collapse, ovalization and wrinkling of the pipe during the bending process are avoided, and the bending effect is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to a pipe bending device, particularly to a pipe bending device for building construction, and belongs to the technical field of pipe bending. BACKGROUND

[0002] Pipe bending is one of the plastic processing methods of base materials in building construction. It is mainly to bend the building pipe into a specific angle or arc according to the actual and design requirements to adapt to the installation and structure requirements of the construction site. Usually, portable pipe benders, manual pipe benders or small hydraulic pipe bending devices are used to complete the bending operation combined with the experience of the operator. However, due to the lack of precise control of the factory environment in the field bending, more attention should be paid to the control of bending angle, radius and pipe protection to avoid cracks and deformation leading to the decrease of pipe strength.

[0003] A Chinese patent with the patent name of a building pipe adjustable angle bending machine (patent number ZL202510734554.2) discloses a bending machine technology with adjustable angle. On the one hand, it can process the pipe into a smooth transition arc pipe according to the actual requirements in a more flexible operation mode, which is suitable for different bending requirements of building pipes for different purposes. On the other hand, it can automatically select the corresponding roller according to the shape or cross-sectional shape of the pipe. However, although the pipe bender has the characteristics of multiple functions and wide application range, the bending method used by it is the same as that of the traditional bending machine, which is to forcibly bend the pipe by using the roller extrusion. Since the inner wall of the pipe lacks support during bending, the pipe is prone to collapse, ovalization, wrinkling and other deformation problems under the action of pressure during bending, especially for pipes with thin walls.

[0004] A Chinese patent with the patent name of a material bending device for building construction (patent number ZL202410661428.4) discloses a material bending technology for building construction. The support structure is inserted into the inside of the pipe through the inner support mechanism, so as to support the inside of the pipe when the bending radius of the pipe is small, thereby improving the bending effect. However, although the bending device has a pipe wall support structure, the support structure is mainly composed of an inner support sheet and a rubber sleeve. The outer diameter of the support structure as a whole is fixed, which can only be used for bending operation of a single specification of pipe and cannot meet the bending requirements of pipes of different specifications in building construction. Therefore, a pipe bending device for building construction is proposed. SUMMARY

[0005] Therefore, the present application provides a pipe bending device for building construction to solve or alleviate the technical problems in the prior art and at least provide a beneficial choice.

[0006] The technical scheme of the embodiment of the present application is implemented in the following manner: a pipe bending device for building construction comprises a bending rack assembly and an inner support mechanism, the bending rack assembly comprises a main rack, a pipe bending rack and two storage racks;

[0007] The pipe bending rack is installed on one side of the main rack, the two storage racks are both installed on the inner side wall of the main rack, the inner support mechanism is installed on one side of one of the storage racks, an inner support driving mechanism is installed on the other side of the storage rack, and an inner side wall of the pipe bending rack is provided with a pipe bending mechanism.

[0008] The inner support mechanism adopts a telescopic snake bone structure and can be bent and deformed along the bending direction of the pipe.

[0009] The inner support driving mechanism is used to drive the inner support mechanism to contract, so as to change the outer diameter of the inner support mechanism and make it fully fit the inner wall of the pipe.

[0010] The pipe bending mechanism bends the pipe by rolling and can adjust the inner diameter of the pipe by lifting.

[0011] Further preferably, the inner support mechanism comprises a snake bone end seat, a snake bone end head, a plurality of snake bone main racks, a plurality of snake bone sliding grooves, a plurality of snake bone sliding blocks, a plurality of annular parts, a plurality of rubber inner linings and a plurality of armored woven nets.

[0012] The snake bone end seat is installed on one side of one of the storage racks, the snake bone end head is arranged on one side of the snake bone end seat, the plurality of snake bone main racks are hingedly connected between the snake bone end seat and the snake bone end head, the plurality of snake bone sliding grooves are respectively arranged on one side of the outer side walls of the plurality of snake bone main racks, the plurality of snake bone sliding blocks are respectively fixedly connected to the other sides of the outer side walls of the plurality of snake bone main racks, and the outer side walls of the snake bone sliding blocks are slidably connected to the inner side walls of the snake bone sliding grooves, so that the plurality of snake bone main racks are hingedly connected to each other and can be telescopically adjusted.

[0013] Further preferably, the plurality of annular parts are respectively arranged in the middle portions of the outer side walls of the plurality of snake bone main racks, the plurality of rubber inner linings and armored woven nets are respectively fixedly connected between the plurality of annular parts, and the armored woven net is wrapped on the outer side wall of the rubber inner lining.

[0014] Further preferably, the inner support driving mechanism comprises a side support, a hollow hydraulic cylinder and a traction steel rope.

[0015] The side support is mounted on the other side of the shelf, the hollow hydraulic cylinder is mounted between the side support and the shelf, one end of the traction steel rope is detachably mounted on one end of the hollow hydraulic cylinder piston rod, the other end of the traction steel rope penetrates the hollow hydraulic cylinder, the shelf, the snake bone end seat and the snake bone main frame and is fixedly connected to one end of the snake bone end head, for traction of the snake bone end head to drive the snake bone main frame to contract as a whole.

[0016] Further preferably, the pipe bending mechanism comprises a pipe bending frame, a third speed reducer motor, a lifting frame, an inner slide frame, a rodless cylinder, a first hydraulic cylinder, a plurality of pipe bending support wheels and a pipe bending driving wheel.

[0017] The pipe bending frame is rotationally connected to the inner side wall bottom of the pipe bending frame, the third speed reducer motor is mounted on the inner side wall bottom of the pipe bending frame, for driving the pipe bending frame as a whole to rotate around the third speed reducer motor output shaft, the rodless cylinder is mounted on the top of one side of the pipe bending frame, the lifting frame is mounted on the output end of the rodless cylinder, a plurality of pipe bending support wheels are hingedly connected to one side of the inner side wall of the lifting frame and are connected by torsional springs, for resetting the torsional pipe bending support wheels.

[0018] Further preferably, the inner slide frame is slidingly connected to the inner side wall top of the pipe bending frame, the first hydraulic cylinder is mounted on one side of the pipe bending frame, one end of the first hydraulic cylinder piston rod is fixedly connected to one side of the inner slide frame, for driving the inner slide frame to slide in the pipe bending frame, the pipe bending driving wheel is fixedly connected to one side of the inner side wall of the inner slide frame and is matched with the pipe bending support wheel.

[0019] Further preferably, a manual adjusting mechanism is mounted on the middle of one side of the main frame, the manual adjusting mechanism comprises a first housing, a first worm wheel disc, a first worm, a handle, a center screw and a first threaded sleeve.

[0020] The first housing is fixedly connected to one side of the pipe bending frame, the first worm wheel disc is rotationally connected to the inner side wall of the first housing, the first worm is rotationally connected to the inner side wall top of the first housing, the outer side wall of the first worm wheel disc is meshingly connected with the outer side wall of the first worm, one end of the handle penetrates the inner side wall of the first housing and is fixedly connected to one end of the first worm, one end of the center screw is fixedly connected to one end of the first worm wheel disc, the other end of the center screw is rotationally connected to one side of the inner side wall of the pipe bending frame, the outer side wall of the first threaded sleeve is fixedly connected to the inner side wall of one of the shelves, and the inner side wall of the first threaded sleeve is threadedly connected with the outer side wall of the center screw.

[0021] Further preferably, the outer side of the other said shelf is provided with a one-time pipe clamping mechanism, which comprises a second housing, a first speed reducer motor installed at the top of one side of the second housing, a second worm fixedly connected to the output end of the first speed reducer motor, a second worm wheel disc rotatably connected to the inside of the second housing, a planar threaded part provided on one side of the second worm wheel disc, three trapezoidal clamping blocks in sliding connection with the inner wall of the second housing, and a belt drive mechanism installed on one side of the second housing.

[0022] The one end of the second worm away from the first speed reducer motor is rotatably connected to one side of the inner wall of the second housing, and the outer wall of the second worm is in meshing connection with the outer wall of the second worm wheel disc.

[0023] The belt drive mechanism comprises a second speed reducer motor, a belt transmission member, and a second threaded sleeve.

[0024] The second speed reducer motor is installed on one side of the inner wall of the other said shelf, the second threaded sleeve is rotatably connected to the inner wall of the other said shelf, the inner wall of the second threaded sleeve is in threaded connection with the outer wall of the central screw, and the belt transmission member is installed between the output shaft of the second speed reducer motor and one end of the second threaded sleeve, for driving the second threaded sleeve to rotate by the power of the output shaft of the second speed reducer motor, and driving the shelf to reciprocate along the central screw.

[0025] Further preferably, the upper surface of the pipe bending rack is slidably connected with a secondary pipe clamping mechanism, which comprises a support slide frame sliding on one side of the pipe bending rack, two second hydraulic cylinders symmetrically installed on the inner side of the support slide frame, two square clamping blocks symmetrically sliding on the top of the inner side wall of the support slide frame, a rack fixedly connected to the bottom of one side of the support slide frame, a gear fixedly connected between the output shaft of a third speed reducer motor and the pipe bending rack, two guide rails symmetrically fixedly connected to the surface of the pipe bending rack, and a plurality of guide wheels rolling in the guide rails.

[0026] The piston rods of the two second hydraulic cylinders are respectively fixedly connected to one side of the two square clamping blocks, for driving the square clamping blocks to reciprocate in the support slide frame, one side of the rack is in meshing connection with the outer wall of the gear, for driving the support slide frame to reciprocate along the direction of the rack by the power of the output shaft of the third speed reducer motor, and the plurality of guide wheels are installed on the inner side wall bottom of the support slide frame, for rolling in the guide rails to guide the support slide frame.

[0027] Further preferably, the outer side cover of the belt transmission member is provided with a dust cover, and the dust cover is installed on one side of the other shelf.

[0028] The above technical scheme is adopted in the embodiment of the application, and the following advantages are achieved.

[0029] One, the present application is provided by the need to set the pipe bending inside the support mechanism outside the wall, and then through the inside support drive mechanism drive inside the support mechanism to shrink, in order to change the outer diameter of the inside support mechanism, so that it can be fully fitted with the pipe wall, so that the pipe bending mechanism can be used to provide support for the pipe wall inside the inside support mechanism, to avoid the pipe collapse, ovalization, wrinkling and other deformation problems in the bending process, improve the bending effect.

[0030] Two, the present application can control the shrinkage of the inside support mechanism through the inside support drive mechanism, so as to control the outer diameter of the inside support mechanism, and then support the pipe wall with different inner diameters, so as to meet the bending needs of different specifications of pipe, and the pipe bending inner diameter can be adjusted by the pipe bending mechanism in a lifting manner, so as to bend the pipe with different angles or radians according to the actual needs.

[0031] The above summary is only for the purpose of the description and does not limit in any way. In addition to the above described exemplary aspects, embodiments and features, further aspects, embodiments and features of the present application will be readily apparent to those skilled in the art by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0033] Figure 1 is a structural diagram of the present application;

[0034] Figure 2 is a sectional view of the present application;

[0035] Figure 3 is an axonometric view of the snake bone end seat and the snake bone end head of the present application;

[0036] Figure 4 is a sectional view of the snake bone main frame of the present application;

[0037] Figure 5 is an axonometric view of the snake bone main frame of the present application;

[0038] Figure 6 is an enlarged schematic view of the A area structure of the present application; Figure 5

[0039] Figure 7 is a sectional view of the first shell of the present application; ​

[0040] Figure 8 isometric view of the bending machine frame of the present application;

[0041] Figure 9 isometric view of the bending machine frame of the present application;

[0042] Figure 10 isometric view of the bending machine frame of the present application;

[0043] Figure 11 isometric view of the bending machine frame of the present application;

[0044] Figure 12 isometric view of the bending machine frame of the present application;

[0045] Figure 13 isometric view of the bending machine frame of the present application;

[0046] Figure 14 isometric view of the bending machine frame of the present application;

[0047] Figure 15 isometric view of the bending machine frame of the present application.

[0048] Fig. 1 is a bending machine frame assembly; Fig. 2 is an inner support mechanism; Fig. 3 is an inner support driving mechanism; Fig. 4 is a manual adjusting mechanism; Fig. 5 is a primary pipe clamping mechanism; Fig. 6 is a pipe bending mechanism; Fig. 7 is a secondary pipe clamping mechanism; Fig. 101 is a main frame; Fig. 102 is a pipe bending frame; Fig. 103 is a storage rack; Fig. 201 is a snake bone end base; Fig. 202 is a snake bone end head; Fig. 203 is a snake bone main frame; Fig. 204 is a snake bone sliding groove; Fig. 205 is a snake bone sliding block; Fig. 206 is a ring-shaped portion; Fig. 207 is a rubber inner lining; Fig. 208 is an armored woven mesh; Fig. 301 is a side support; Fig. 302 is a hollow hydraulic cylinder; Fig. 303 is a traction steel rope; Fig. 401 is a first housing; Fig. 402 is a first worm wheel disc; Fig. 403 is a first worm; Fig. 404 is a handle; Fig. 405 is a central screw; Fig. 406 is a first threaded sleeve; Fig. 501 is a second housing; Fig. 502 is a first speed reducer motor; Fig. 503 is a second worm; Fig. 504 is a second worm wheel disc; Fig. 505 is a planar threaded portion; Fig. 506 is a trapezoidal clamping block; Fig. 507 is a belt driving mechanism; Fig. 571 is a second speed reducer motor; Fig. 572 is a belt driving member; Fig. 573 is a second threaded sleeve; Fig. 602 is a pipe bending frame; Fig. 603 is a third speed reducer motor; Fig. 604 is a lifting frame; Fig. 605 is an inner sliding frame; Fig. 606 is a rodless cylinder; Fig. 607 is a first hydraulic cylinder; Fig. 608 is a pipe bending support wheel; Fig. 609 is a pipe bending driving wheel; Fig. 701 is a support sliding frame; Fig. 702 is a second hydraulic cylinder; Fig. 703 is a square clamping block; Fig. 704 is a rack; Fig. 705 is a gear; Fig. 706 is a guide rail; Fig. 707 is a guide wheel; Fig. 91 is a dust cover; Fig. 92 is a pipe member. DETAILED DESCRIPTION

[0049] In the following, only certain exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present application. Therefore, the drawings and the description are considered to be exemplary in nature rather than limiting.

[0050] It should be noted that the terms "first", "second", "symmetric", "array" and the like are only used for distinguishing description and position description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "symmetric" and the like can explicitly or implicitly include one or more of the features; similarly, for some features that are not limited in number by the words "two", "three" and the like, it should be noted that the features also belong to explicitly or implicitly including one or more of the features.

[0051] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0052] As shown in Figure 1 , the embodiment of the present application provides a pipe bending equipment for building construction, which comprises a bending rack assembly 1 and an inner support mechanism 2, and the bending rack assembly 1 comprises a main rack 101, a pipe bending rack 102 and two storage racks 103;

[0053] Among them, the pipe bending rack 102 is installed on one side of the main rack 101, and the two storage racks 103 are both installed and connected to the inner side wall of the main rack 101; the inner support mechanism 2 is installed on one side of one storage rack 103, the other side of the storage rack 103 is provided with an inner support driving mechanism 3, and the inner side wall of the pipe bending rack 102 is provided with a pipe bending mechanism 6;

[0054] Among them, the inner support mechanism 2 adopts a telescopic snake bone structure, which can bend and deform along the direction of pipe bending;

[0055] Among them, the inner support driving mechanism 3 is used to drive the inner support mechanism 2 to shrink, so as to change the outer diameter of the inner support mechanism 2, so that it is fully matched with the inner wall of the pipe;

[0056] Among them, the pipe bending mechanism 6 bends the pipe by rolling, and can adjust the inner diameter of the pipe bending by lifting.

[0057] As shown in Figures 2-6 , in one embodiment, the inner support mechanism 2 comprises a snake bone end seat 201, a snake bone end head 202, a plurality of snake bone main racks 203, a plurality of snake bone sliding grooves 204, a plurality of snake bone sliding blocks 205, a plurality of annular parts 206, a plurality of rubber inner linings 207 and a plurality of armored woven nets 208;

[0058] The snake bone end base 201 is installed on one side of a storage rack 103, the snake bone end head 202 is arranged on one side of the snake bone end base 201, a plurality of snake bone main frames 203 are hingedly connected between the snake bone end base 201 and the snake bone end head 202, a plurality of snake bone sliding grooves 204 are respectively arranged on one side of the outer side walls of the plurality of snake bone main frames 203, a plurality of snake bone sliding blocks 205 are respectively fixedly connected on the other side of the outer side walls of the plurality of snake bone main frames 203, the outer side walls of the snake bone sliding blocks 205 are in sliding connection with the inner side walls of the snake bone sliding grooves 204, so that the plurality of snake bone main frames 203 are hingedly connected with each other and can be adjusted in extension and contraction at the same time; a plurality of annular parts 206 are respectively arranged in the middle parts of the outer side walls of the plurality of snake bone main frames 203, a plurality of rubber inner linings 207 and armored woven nets 208 are respectively fixedly connected between every two of the plurality of annular parts 206, and the armored woven net 208 is wrapped on the outer side wall of the rubber inner lining 207.

[0059] By moving the snake bone end head 202 to drive the snake bone main frame 203 to move synchronously with the rubber inner lining 207, the moving snake bone main frame 203 drives the snake bone sliding block 205 to slide in the snake bone sliding groove 204, so that the snake bone main frame 203 is contracted as a whole, and at the same time, the annular part 206 is used to extrude the rubber inner lining 207, so that the rubber inner lining 207 drives the armored woven net 208 to deform under the action of pressure.

[0060] As shown in the drawings, Figures 2-7 In one embodiment, the inner support driving mechanism 3 includes a side support 301, a hollow hydraulic cylinder 302, and a traction steel rope 303.

[0061] The side support 301 is installed on the other side of the storage rack 103, the hollow hydraulic cylinder 302 is installed between the side support 301 and the storage rack 103, one end of the traction steel rope 303 is detachably installed on one end of the piston rod of the hollow hydraulic cylinder 302, the other end of the traction steel rope 303 penetrates through the hollow hydraulic cylinder 302, the storage rack 103, the snake bone end base 201 and the snake bone main frame 203 and is fixedly connected to one end of the snake bone end head 202, and is used to pull the snake bone end head 202 to drive the snake bone main frame 203 to contract as a whole.

[0062] The side support 301 provides support for the hollow hydraulic cylinder 302, the piston rod of the hollow hydraulic cylinder 302 drives the traction steel rope 303 to move, and the moving traction steel rope 303 drives the snake bone end head 202 to move.

[0063] As shown in the drawings, Figures 8-12 In one embodiment, the pipe bending mechanism 6 includes a pipe bending frame 602, a third speed reducer motor 603, a lifting frame 604, an inner sliding frame 605, a rodless cylinder 606, a first hydraulic cylinder 607, a plurality of pipe bending support wheels 608, and a pipe bending driving wheel 609.

[0064] The pipe bending frame 602 is rotationally connected to the inner side wall bottom of the pipe bending frame 102, the third speed reducer motor 603 is installed on the inner side wall bottom of the pipe bending frame 102, and is used to drive the whole pipe bending frame 602 to rotate around the output shaft of the third speed reducer motor 603 as the axis, the rodless air cylinder 606 is installed on the top of one side of the pipe bending frame 102, the lifting frame 604 is installed on the output end of the rodless air cylinder 606, a plurality of pipe bending support wheels 608 are hingedly connected to one side of the inner side wall of the lifting frame 604 and are connected by torsional springs, and are used to reset the torsional pipe bending support wheels 608; the inner sliding frame 605 is slidingly connected to the inner side wall top of the pipe bending frame 602, the first hydraulic cylinder 607 is installed on one side of the pipe bending frame 602, one end of the piston rod of the first hydraulic cylinder 607 is fixedly connected to one side of the inner sliding frame 605, and the first hydraulic cylinder 607 is used to drive the inner sliding frame 605 to slide in the pipe bending frame 102, and the pipe bending driving wheel 609 is fixedly connected to one side of the inner side wall of the inner sliding frame 605 and is matched with the pipe bending support wheel 608.

[0065] The third speed reducer motor 603 is used to drive the whole pipe bending frame 602 to rotate, the rotating pipe bending frame 602 drives the pipe bending driving wheel 609 to roll on the outer wall of the pipe piece 92, the pipe bending support wheel 608 is matched with the pipe bending driving wheel 609 to perform a bending operation on the pipe piece 92, the torsional spring between the pipe bending support wheel 608 and the lifting frame 604 is arranged and is used to reset the pipe bending support wheel 608; the rodless air cylinder 606 drives the whole lifting frame 604 to move, the moving lifting frame 604 drives the pipe bending support wheel 608 to move up / down, and the pipe bending support wheel 608 with different bending inner diameters is switched.

[0066] As shown in Figure 7 In one embodiment, a manual adjusting mechanism 4 is installed on one side of the middle of the main frame 101, and the manual adjusting mechanism 4 comprises a first housing 401, a first worm wheel disc 402, a first worm 403, a handle 404, a center screw 405 and a first threaded sleeve 406.

[0067] The first housing 401 is fixedly connected to one side of the pipe bending frame 102, the first worm wheel disc 402 is rotationally connected to the inner side wall of the first housing 401, the first worm 403 is rotationally connected to the inner side wall top of the first housing 401, the outer side wall of the first worm wheel disc 402 is in meshing connection with the outer side wall of the first worm 403, one end of the handle 404 penetrates through the inner side wall of the first housing 401 and is fixedly connected to one end of the first worm 403, one end of the center screw 405 is fixedly connected to one end of the first worm wheel disc 402, the other end of the center screw 405 is rotationally connected to one side of the inner side wall of the pipe bending frame 102, the outer side wall of the first threaded sleeve 406 is fixedly connected to the inner side wall of a storage rack 103, and the inner side wall of the first threaded sleeve 406 is in threaded connection with the outer side wall of the center screw 405.

[0068] By rotating the handle 404, the first worm gear 403 is driven to rotate. The rotating first worm gear 403 drives the first worm wheel 402 to rotate using its teeth. The rotating first worm wheel 402 drives the central screw 405 to rotate. The rotating central screw 405 drives a shelf 103 to move as a whole, which in turn drives the inner support mechanism 2 and the inner support drive mechanism 3, so as to adjust the specific position of the inner support mechanism 2 according to actual needs.

[0069] like Figures 13-15 As shown, in one embodiment, a primary clamping mechanism 5 is installed on the outside of another shelf 103. The primary clamping mechanism 5 includes a second housing 501, a first reduction motor 502 installed on the top of one side of the second housing 501, a second worm gear 503 fixedly connected to the output end of the first reduction motor 502, a second worm wheel 504 rotatably connected inside the second housing 501, a planar threaded portion 505 provided on one side of the second worm wheel 504, three trapezoidal clamping blocks 506 slidably connected to the inner wall of the second housing 501, and a belt drive mechanism 507 installed on one side of the second housing 501.

[0070] Among them, the end of the second worm 503 away from the first geared motor 502 is rotatably connected to the inner side wall of the second housing 501, the outer side wall of the second worm 503 is meshed with the outer side wall of the second worm wheel 504, and one side of each of the three trapezoidal clamps 506 is threadedly connected to the planar threaded part 505.

[0071] The belt drive mechanism 507 includes a second reduction motor 571, a belt drive component 572, and a second threaded sleeve 573.

[0072] The second geared motor 571 is installed on one side of the inner wall of another shelf 103. The second threaded sleeve 573 is rotatably connected to the inner wall of another shelf 103. The inner wall of the second threaded sleeve 573 is threadedly connected to the outer wall of the central screw 405. The belt drive 572 is installed between the output shaft of the second geared motor 571 and one end of the second threaded sleeve 573. It is used to cooperate with the power of the output shaft of the second geared motor 571 to drive the second threaded sleeve 573 to rotate, thereby driving the shelf 103 to reciprocate along the central screw 405 axial direction. The outer side of the belt drive 572 is covered with a dust cover 91, which is installed on one side of the other shelf 103.

[0073] The output shaft of the first reduction motor 502 drives the second worm 503 to rotate. The rotating second worm 503 drives the second worm wheel 504 to rotate using its teeth. The rotating second worm wheel 504, in conjunction with the planar threaded part 505, drives the trapezoidal clamping block 506 to slide synchronously within the second housing 501, thereby concentrically clamping and fixing the pipe component 92.

[0074] like Figures 8-12As shown, in one embodiment, the upper surface of the pipe bending frame 102 is slidably connected with a secondary pipe clamping mechanism 7, which comprises a supporting slide 701 slidably arranged on one side of the pipe bending frame 102, two second hydraulic cylinders 702 symmetrically arranged on the inner side of the supporting slide 701, two square clamping blocks 703 symmetrically slidably arranged on the inner side wall top of the supporting slide 701, a rack 704 fixedly connected on one side of the bottom of the supporting slide 701, a gear 705 fixedly connected between the output shaft of the third speed reducer motor 603 and the pipe bending frame 602, two guide rails 706 symmetrically fixedly connected on the surface of the pipe bending frame 102, and a plurality of guide wheels 707 rolling in the guide rails 706.

[0075] Wherein, the piston rods of the two second hydraulic cylinders 702 are respectively fixedly connected to one side of the two square clamping blocks 703, for driving the square clamping blocks 703 to reciprocally slide in the supporting slide 701, one side of the rack 704 is meshingly connected with the outer side wall of the gear 705, for driving the supporting slide 701 to reciprocally move along the direction of the rack 704 by the power of the output shaft of the third speed reducer motor 603, and the plurality of guide wheels 707 are all arranged on the inner side wall bottom of the supporting slide 701, for rolling in the guide rails 706 to guide the supporting slide 701.

[0076] The gear 705 rotating synchronously with the output shaft of the third speed reducer motor 603 drives the rack 704 to move by the tooth trace, and the moving rack 704 drives the supporting slide 701 to move as a whole, so that the pipe material piece 92 is fed by the secondary pipe clamping mechanism 7 during the bending process; and the guide wheels 707 rolling in the guide rails 706 guide the moving supporting slide 701.

[0077] In the working process of the present application, first, the position of the inner supporting mechanism 2 is determined according to the inner diameter of the pipe material, so that the inner supporting mechanism 2 after contraction can still fully support the pipe bending area.

[0078] When it is necessary to adjust the position of the inner supporting mechanism 2, the first worm 403 is driven to rotate by rotating the handle 404, the first worm 403 rotating by the tooth trace drives the first worm disc 402 to rotate, the first worm disc 402 rotating drives the center screw 405 to rotate, and the center screw 405 rotating drives the first threaded sleeve 406 by the thread cooperation, so that the inner supporting mechanism 2 and the inner supporting driving mechanism 3 as a whole are driven to move by a storage rack 103, so as to adjust the specific position of the inner supporting mechanism 2 according to the actual demand, and the end of the center screw 405 can be fixed by the self-locking characteristic of the worm and the gear, so as to prevent the center screw 405 from rotating synchronously with the second threaded sleeve 573 when the second threaded sleeve 573 rotates.

[0079] When the pipe needs to be bent, one end of the pipe piece 92 is sequentially inserted through the pipe bending mechanism 6, the secondary pipe clamping mechanism 7 and the primary pipe clamping mechanism 5, and is sleeved on the inner support mechanism 2. When the inner support mechanism 2 is placed, the output shaft of the first speed reducer motor 502 drives the second worm 503 to rotate. The rotating second worm 503 drives the second worm gear disc 504 to rotate through the tooth pattern. The rotating second worm gear disc 504 cooperates with the flat thread part 505 to drive the trapezoidal clamping block 506 to slide synchronously in the second housing 501, so as to clamp and fix the pipe piece 92 by the synchronous trapezoidal clamping block 506. Then, the output shaft of the second speed reducer motor 571 drives the second threaded sleeve 573 to rotate through the belt transmission member 572. The rotating second threaded sleeve 573 drives a storage rack 103 to move the primary pipe clamping mechanism 5 and the clamped and fixed pipe piece 92 as a whole through the threaded center screw 405, so as to adjust the specific bending position of the pipe piece 92 according to actual needs.

[0080] When the position of the pipe piece 92 is adjusted, the piston rod of the hollow hydraulic cylinder 302 drives the traction steel wire 303 to move. The moving traction steel wire 303 drives the snake bone end head 202 to move. The moving snake bone end head 202 cooperates with the rubber lining 207 to drive the snake bone main frame 203 to move synchronously. The moving snake bone main frame 203 drives the snake bone sliding block 205 to slide in the snake bone sliding groove 204, so that the snake bone main frame 203 shrinks as a whole. At the same time, the rubber lining 207 is extruded by the annular part 206, so that the rubber lining 207 drives the armored woven mesh 208 to deform under the action of pressure, so as to increase the outer diameter of the inner support mechanism 2 as a whole. When the deformed armored woven mesh 208 is attached to the inner wall of the pipe piece 92, the armored woven mesh 208 cooperates with the rubber lining 207 to limit the annular part 206 and the snake bone main frame 203. The hollow hydraulic cylinder 302 stops working, so as to complete the supporting operation of the inner wall of the pipe piece 92.

[0081] When the outer wall of the inner support mechanism 2 is adjusted, the square clamping block 703 is driven to slide in the support slide 701 by the second hydraulic cylinder 702, so that the square clamping block 703 is used to clamp the outer side of the pipe piece 92 close to the bending area for the second time, and after the second clamping is completed, the first speed reducing motor 502 is used to drive the primary pipe clamping mechanism 5 to release the clamping of the pipe piece 92. Then the inner slide 605 is pushed to slide in the pipe bending frame 602 by the piston rod of the first hydraulic cylinder 607, the moving inner slide 605 drives the pipe bending driving wheel 609 to adhere to the outer wall of the pipe piece 92, then the pipe bending frame 602 is driven to rotate as a whole by the output shaft of the third speed reducing motor 603 through the gear 705, the rotating pipe bending frame 602 drives the pipe bending driving wheel 609 to roll on the outer wall of the pipe piece 92, and the pipe bending support wheel 608 is used for bending operation of the pipe piece 92, the torsional spring between the pipe bending support wheel 608 and the lifting frame 604 is used for resetting the pipe bending support wheel 608 after the pipe piece 92 is discharged, and in the bending process, the inner slide 605 and the pipe bending driving wheel 609 are continuously pushed by the first hydraulic cylinder 607 to compensate for the bending path of different angles; at the same time, the gear 705 rotating synchronously with the output shaft of the third speed reducing motor 603 drives the rack 704 to move through the teeth, and the moving rack 704 drives the support slide 701 to move as a whole, so that the pipe piece 92 is fed by the secondary pipe clamping mechanism 7 in the bending process; the guide wheel 707 rolls in the guide rail 706 driven by the moving support slide 701.

[0082] When it is necessary to change the bending angle of the pipe piece 92, before the pipe piece 92 is placed, the lifting frame 604 is driven to move as a whole by starting the rodless cylinder 606, and the pipe bending support wheel 608 is driven to move up / down by the moving lifting frame 604, so as to switch the pipe bending support wheel 608 with different bending inner diameters.

[0083] Moreover, after the primary bending operation is completed, the pipe bending driving wheel 609 is reset by the inner slide 605 driven by the first hydraulic cylinder 607, so that the pipe bending driving wheel 609 is separated from the pipe wall, then the pipe piece 92 is clamped again by the primary pipe clamping mechanism 5, and the pipe piece 92 is released from the clamping by the secondary pipe clamping mechanism 7, so as to reset the pipe bending mechanism 6 and the secondary pipe clamping mechanism 7 as a whole by the third speed reducing motor 603; then the inner support mechanism 2 is reset by the inner support driving mechanism 3, so that the outer wall of the inner support mechanism 2 is separated from the inner wall of the pipe piece 92, then the pipe piece 92 is moved again by the primary pipe clamping mechanism 5, and the second bending position of the pipe piece 92 is adjusted to between the pipe bending driving wheel 609 and the pipe bending support wheel 608, so that the pipe piece 92 can be continuously bent by repeated operation.

[0084] To save the overall cost of the inner support mechanism 2, the length of one end of the snake bone end seat 201 can be extended, and the number of the snake bone main frame 203, the rubber lining 207 and the armored woven net 208 used between the snake bone end seat 201 and the snake bone end head 202 can be reduced, but the minimum number of the snake bone main frame 203 should not be less than four.

[0085] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of various changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A pipe bending apparatus for construction work, comprising a bending frame assembly (1) and an inner support mechanism (2), characterized in that, The bending machine frame assembly (1) comprises a main frame (101), a pipe bending frame (102) and two storage racks (103); The pipe bending frame (102) is installed on one side of the main frame (101), and the two storage racks (103) are both installed on the inner side wall of the main frame (101); the inner support mechanism (2) is installed on one side of one of the storage racks (103), the other side of the storage rack (103) is provided with an inner support driving mechanism (3), and the inner side wall of the pipe bending frame (102) is provided with a pipe bending mechanism (6); The inner support mechanism (2) adopts a telescopic snake bone structure and can be bent and deformed along the bending direction of the pipe; the inner support mechanism (2) comprises a snake bone end seat (201), a snake bone end head (202), a plurality of snake bone main frames (203), a plurality of snake bone sliding grooves (204), a plurality of snake bone sliding blocks (205), a plurality of annular parts (206), a plurality of rubber inner linings (207) and a plurality of armored woven nets (208); The snake bone end seat (201) is installed on one side of one of the storage racks (103), the snake bone end head (202) is arranged on one side of the snake bone end seat (201), the plurality of snake bone main frames (203) are hingedly connected between the snake bone end seat (201) and the snake bone end head (202), the plurality of snake bone sliding grooves (204) are respectively arranged on one side of the outer side walls of the plurality of snake bone main frames (203), the plurality of snake bone sliding blocks (205) are respectively fixedly connected on the other side of the outer side walls of the plurality of snake bone main frames (203), the outer side wall of the snake bone sliding block (205) is slidably connected with the inner side wall of the snake bone sliding groove (204), so that the plurality of snake bone main frames (203) are hingedly connected with each other and can be telescopically adjusted, the plurality of annular parts (206) are respectively arranged in the middle portions of the outer side walls of the plurality of snake bone main frames (203), the plurality of rubber inner linings (207) and armored woven nets (208) are respectively fixedly connected between the plurality of annular parts (206), and the armored woven net (208) is wrapped on the outer side wall of the rubber inner lining (207); The inner support driving mechanism (3) is used for driving the inner support mechanism (2) to contract, so as to change the outer diameter of the inner support mechanism (2) and make the inner support mechanism (2) fully fit the inner wall of the pipe; The pipe bending mechanism (6) bends the pipe by rolling and can adjust the inner diameter of the pipe by lifting.

2. The pipe bending apparatus for architectural work according to claim 1, characterized by: The inner support driving mechanism (3) comprises a side support (301), a hollow hydraulic cylinder (302) and a traction steel rope (303). The side support (301) is installed on the other side of the storage rack (103), the hollow hydraulic cylinder (302) is installed between the side support (301) and the storage rack (103), one end of the traction steel rope (303) is detachably installed on one end of the piston rod of the hollow hydraulic cylinder (302), the other end of the traction steel rope (303) penetrates the hollow hydraulic cylinder (302), the storage rack (103), the snake bone end seat (201) and the snake bone main rack (203) and is fixedly connected to one end of the snake bone end head (202), so as to pull the snake bone end head (202) to drive the snake bone main rack (203) to contract as a whole.

3. The pipe bending apparatus for architectural work according to claim 1, characterized by: The pipe bending mechanism (6) comprises a pipe bending frame (602), a third speed reducer motor (603), a lifting frame (604), an inner sliding frame (605), a rodless cylinder (606), a first hydraulic cylinder (607), a plurality of pipe bending support wheels (608) and a pipe bending driving wheel (609). The pipe bending frame (602) is rotationally connected to the bottom of the inner side wall of the pipe bending rack (102), the third speed reducer motor (603) is installed on the bottom of the inner side wall of the pipe bending rack (102) and is used to drive the pipe bending frame (602) to rotate around the output shaft of the third speed reducer motor (603), the rodless cylinder (606) is installed on the top of one side of the pipe bending rack (102), the lifting frame (604) is installed on the output end of the rodless cylinder (606), a plurality of the pipe bending support wheels (608) are hingedly connected to one side of the inner side wall of the lifting frame (604) and are connected by torsional springs, and are used to reset the twisted pipe bending support wheels (608).

4. The pipe bending apparatus for architectural work according to claim 3, characterized by: The inner sliding frame (605) is slidingly connected to the top of the inner side wall of the pipe bending frame (602), the first hydraulic cylinder (607) is installed on one side of the pipe bending frame (602), one end of the piston rod of the first hydraulic cylinder (607) is fixedly connected to one side of the inner sliding frame (605) and is used to drive the inner sliding frame (605) to slide in the pipe bending rack (102), and the pipe bending driving wheel (609) is fixedly connected to one side of the inner side wall of the inner sliding frame (605) and is matched with the pipe bending support wheel (608).

5. The pipe bending apparatus for architectural work according to claim 1, characterized by: A manual adjusting mechanism (4) is installed on one side of the middle part of the main rack (101), the manual adjusting mechanism (4) comprises a first housing (401), a first worm wheel disc (402), a first worm (403), a handle (404), a center screw rod (405) and a first threaded sleeve (406). The first housing (401) is fixedly connected to one side of the pipe bending rack (102), the first worm wheel disc (402) is rotationally connected to the inner side wall of the first housing (401), the first worm (403) is rotationally connected to the top of the inner side wall of the first housing (401), the outer side wall of the first worm wheel disc (402) is meshingly connected with the outer side wall of the first worm (403), one end of the handle (404) penetrates through the inner side wall of the first housing (401) and is fixedly connected to one end of the first worm (403), one end of the central screw rod (405) is fixedly connected to one end of the first worm wheel disc (402), the other end of the central screw rod (405) is rotationally connected to the inner side wall of the pipe bending rack (102), and the outer side wall of the first threaded sleeve (406) is fixedly connected to the inner side wall of one of the shelves (103).

6. The pipe bending apparatus for architectural work according to claim 1, characterized by: A one-time pipe clamping mechanism (5) is installed on the outer side of the other shelf (103), the one-time pipe clamping mechanism (5) comprises a second housing (501), a first speed reducer motor (502) installed on the top of one side of the second housing (501), a second worm (503) fixedly connected to the output end of the first speed reducer motor (502), a second worm wheel disc (504) rotationally connected in the second housing (501), a planar threaded portion (505) arranged on one side of the second worm wheel disc (504), three trapezoidal clamping blocks (506) in sliding connection with the inner wall of the second housing (501), and a belt driving mechanism (507) installed on one side of the second housing (501). The one end of the second worm (503) away from the first speed reducer motor (502) is rotationally connected to the inner side wall of the second housing (501), the outer side wall of the second worm (503) is meshingly connected with the outer side wall of the second worm wheel disc (504), and one side of each of the three trapezoidal clamping blocks (506) is threadedly connected with the planar threaded portion (505). The belt driving mechanism (507) comprises a second speed reducer motor (571), a belt transmission member (572) and a second threaded sleeve (573). The second speed reducer motor (571) is installed on the inner side wall of the other shelf (103), the second threaded sleeve (573) is rotationally connected to the inner side wall of the other shelf (103), the inner side wall of the second threaded sleeve (573) is threadedly connected with the outer side wall of the central screw rod (405), the belt transmission member (572) is installed between the output shaft of the second speed reducer motor (571) and one end of the second threaded sleeve (573), and is used for driving the second threaded sleeve (573) to rotate in cooperation with the power of the output shaft of the second speed reducer motor (571), so as to drive the shelf (103) to reciprocatingly move along the central screw rod (405).

7. The pipe bending apparatus for architectural work according to claim 3, characterized by: The upper surface side of the pipe bending frame (102) is slidably connected with a secondary pipe clamping mechanism (7), the secondary pipe clamping mechanism (7) comprises a supporting slide frame (701) slidably arranged on the side of the pipe bending frame (102), two second hydraulic cylinders (702) symmetrically arranged on the inner side of the supporting slide frame (701), two square clamping blocks (703) symmetrically slidably arranged on the inner side wall top of the supporting slide frame (701), a rack (704) fixedly connected on the side bottom of the supporting slide frame (701), a gear (705) fixedly connected between the output shaft of the third speed reduction motor (603) and the pipe bending frame (602), two guide rails (706) symmetrically fixedly connected on the surface of the pipe bending frame (102) and a plurality of guide wheels (707) rollingly arranged in the guide rails (706); The piston rods of the two second hydraulic cylinders (702) are respectively fixedly connected on the side of the two square clamping blocks (703), for driving the square clamping blocks (703) to reciprocatingly slide in the supporting slide frame (701), the side of the rack (704) is meshingly connected with the outer side wall of the gear (705), for driving the supporting slide frame (701) to reciprocatingly move along the direction of the rack (704) by the power of the output shaft of the third speed reduction motor (603), the plurality of guide wheels (707) are all arranged on the inner side wall bottom of the supporting slide frame (701), for rolling in the guide rails (706) and guiding the supporting slide frame (701).

8. The pipe bending apparatus for architectural construction according to claim 6, characterized by: The outer side cover of the belt transmission member (572) is provided with a dust cover (91), and the dust cover (91) is arranged on the side of the other storage rack (103).

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