Metal pipe bending device suitable for multiple diameters

Abstract

The utility model relates to the technical field of pipe benders, in particular to a multi-diameter metal pipe bending device which comprises a pipe bending support, a hoop piece is arranged on one side of the outer wall of the pipe bending support, bolts are connected to the two sides of the interior of the hoop piece in a threaded mode, and nuts are connected to one sides of the outer walls of the bolts in a threaded mode. A positioning base is fixedly connected to one side of the outer wall of the pipe bending support, a pipe bending piece is slidably connected into the positioning base, a screw is in threaded connection with the interior of the pipe bending piece, the outer wall of the screw is in threaded connection with the interior of the positioning base, a supporting assembly is arranged at the bottom of the pipe bending support, and the supporting assembly comprises a rib plate and a connecting pipe. According to the pipe bending device, the pipe bending piece can be detached through the screw and then screwed through the bolt and the nut, so that a pipe is fixed in the pipe bending support through the hoop piece, the problem that the pipe bending device cannot bend pipes with different diameters is solved, and the applicability of the pipe bending device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of urban pipeline construction, in particular to a metal pipe bending device suitable for multiple diameters. Background Art

[0002] In various types of construction, when performing pipe bending operations, automated pipe bending equipment is often used, such as hydraulic pipe bender bending. However, in many cases, small batches of pipe bending operations need to be performed on site. Site conditions are often subject to various restrictions or cost considerations, making it inconvenient to place or use automated pipe bending equipment.

[0003] After searching, the announcement number: CN214235735U discloses a galvanized pipe bender for construction, including a hammer head part and a handle part, the hammer head part includes an external pressure section, a bayonet section and an inner top section, the external pressure section is an inner circle side opening of the trajectory circle of the arc bend, the bayonet section is a side opening of the trajectory circle of the arc bend, and the inner top section is an outer circle side opening of the trajectory circle of the arc bend; the handle part includes a fixed sleeve fixedly connected to the inner top section, a fixed nut is fixedly welded at the end of the fixed sleeve, a telescopic screw is screwed to the inner cavity of the fixed sleeve through the fixed nut, and a handle is fixedly connected to the end of the telescopic screw. The utility model can perform flexible pipe bending operations on site, only one person is required to operate, which is simple and practical. In addition, in the disclosed technical solution, the handle part includes a fixed sleeve and a handle, and the handle is threadedly connected to the fixed sleeve through a telescopic screw. The length of the handle can be adjusted according to the actual operating space or the required bending force, which is convenient for pipe bending construction operations and labor-saving, and can be retracted for easy storage when idle. From the existing disclosed technical solutions of pipe bender structures, it can be seen that the existing pipe bender has the following problems:

[0004] First, it is impossible to bend pipes of different diameters. Specifically, when the diameter is too large, it cannot pass through the chute of the pipe bender. When the diameter is too small, the pipe bender cannot fix the pipe. The pipe is in an unconstrained state in the pipe bender, which is inconvenient to operate.

[0005] Secondly, the hammer head of the pipe bender is an arc-shaped segment, which cannot accurately locate the bending part of the pipe;

[0006] Furthermore, the pipe bender is difficult to fix and operate during the pipe bending process; in addition, when the pipe is bent in the pipe bender, the pipe is in an active state and the bending degree is difficult to control. Utility Model Content

[0007] At least one of the purposes of the invention of the utility model is to provide a metal pipe bending device suitable for multiple diameters to address the problem that the pipe bender in the prior art cannot bend pipes of different diameters, resulting in poor use effect of the pipe bender. The metal pipe bending device can fix pipes of different diameters to be bent and can bend pipes of different diameters. It has a simple structure and is easy to operate.

[0008] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model includes the following aspects.

[0009] A metal pipe bending device suitable for multiple diameters includes a pipe bending bracket, a clamping plate is provided on one side of the outer wall of the pipe bending bracket, bolts are threadedly connected to both sides of the clamping plate, nuts are threadedly connected to one side of the outer wall of the bolt, a positioning base is fixedly connected to one side of the outer wall of the pipe bending bracket, a pipe bending plate is detachably connected to the inside of the positioning base, and a support assembly is provided at the bottom of the pipe bending bracket.

[0010] Furthermore, the bent pipe piece is slidably connected to the inner wall of the positioning base, the inner part of the bent pipe piece is threadedly connected with a screw, and the outer wall of the screw is threadedly connected to the inner part of the positioning base.

[0011] As a preferred solution of the utility model, the bottom surface of the curved pipe support is configured as a plane structure.

[0012] As a preferred solution of the utility model, the guide groove of the positioning base is set as an arc guide groove with a straight axis, the outer wall of the bent pipe piece is in contact with the inner wall of the positioning base, and the inner wall guide groove of the bent pipe piece is set as an arc guide groove with a straight axis.

[0013] As a preferred solution of the utility model, the support assembly includes a rib plate and a connecting pipe, the top of the connecting pipe is fixedly connected to the bottom of the bent pipe bracket, and the outer wall of the rib plate is fixedly connected to one side of the outer wall of the connecting pipe.

[0014] As a preferred solution of the utility model, the connecting tube is internally threadedly connected with telescopic rod 2, and the outer wall of telescopic rod 2 is slidably connected with telescopic rod 1.

[0015] As a preferred solution of the utility model, an outer wall of the telescopic rod is slidably connected to a hand-held rod, and one side of the outer wall of the hand-held rod is rotatably connected to a rotating handle.

[0016] As a preferred solution of the utility model, a screw rod is fixedly connected to one side of the outer wall of the rotating handle, and an inner side of the telescopic rod is threadedly connected to the outer wall of the screw rod.

[0017] As a preferred solution of the utility model, a slide rail is fixedly connected to one inner side of the telescopic rod, a rotating block is rotatably connected to the outer wall of the slide rail, and a ring-shaped array of limiting grooves is provided on the outer wall of the screw rod.

[0018] As a preferred solution of the utility model, a threaded column is fixedly connected to one side of the outer wall of the rotating block, and the threaded column is slidably connected to the inside of the limiting groove.

[0019] Furthermore, the outer wall of the threaded column is threadedly connected to one side of the inner part of the second telescopic rod.

[0020] In summary, due to the adoption of the above technical solution, the utility model has at least the following beneficial effects:

[0021] 1. In the utility model, the pipe bending piece can be disassembled by screws first, and then the bolts and nuts are tightened, so that the clamp piece fixes the pipe inside the pipe bending bracket, which solves the problem that the pipe bender cannot bend pipes of different diameters, and improves the applicability of the pipe bender;

[0022] 2. In the utility model, the handle is firstly rotated to drive the screw rod to rotate, so that the telescopic rod 1 extends out of the inside of the hand-held rod, and then the screw rod drives the threaded column to rotate, so that the threaded column drives the telescopic rod 2 to extend out of the inside of the telescopic rod 1, thereby solving the problem that the pipe bender is inconvenient to fold and store, and improving the convenience of carrying the pipe bender. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The utility model is a schematic diagram of the main structure of a metal pipe bending device suitable for multiple diameters.

[0024] Figure 2 The utility model provides a schematic diagram of a pipe bending support structure suitable for a metal pipe bending device with multiple diameters.

[0025] Figure 3 The utility model discloses a schematic diagram of the internal structure of a hand-held rod of a metal pipe bending device suitable for multiple diameters.

[0026] Markings in the figure: 1-bend pipe bracket, 2-connecting pipe, 3-rib plate, 4-hoop plate, 5-positioning base, 6-bolt, 7-hand lever, 8-rotating handle, 9-bend pipe plate, 10-screw, 11-nut, 12-slide rail, 13-telescopic rod one, 14-telescopic rod two, 15-screw, 16-threaded column, 17-limiting groove, 18-rotating block. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments to make the purpose, technical solutions and advantages of the present invention more clearly understood. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] In the description of the present utility model, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances. Example

[0029] like Figure 1 and Figure 2 As shown, the metal pipe bending device suitable for multiple diameters of the exemplary embodiment of the utility model includes a pipe bending bracket 1, and a clamping plate 4 with an adjustable accommodating space diameter is arranged on one side of the outer wall of the pipe bending bracket 1. Bolts 6 are threadedly connected to both sides of the inner part of the clamping plate 4, and a nut 11 is threadedly connected to one side of the outer wall of the bolt 6. The position of the clamping plate 4 is adjusted by the bolt 6 and the nut 11. When the diameter of the bent pipe is large, the bolt 6 and the nut 11 are adjusted to loosen the clamping plate 4. When the diameter of the bent pipe is small, the clamping plate 4 is tightened by adjusting the bolt 6 and the nut 11, so that the metal pipe bending device fixes the pipe to ensure that the pipe is bent. The pipe device is in a constrained state, a positioning base 5 is fixedly connected to one side of the outer wall of the pipe bending bracket 1, a pipe bending piece 9 is slidably connected inside the positioning base 5, a screw 10 is threadedly connected inside the pipe bending piece 9, and the outer wall of the screw 10 is threadedly connected to the inside of the positioning base 5. A support component is arranged at the bottom of the pipe bending bracket 1, and the support component includes a rib plate 3 and a connecting pipe 2. The top of the connecting pipe 2 is fixedly connected to the bottom of the pipe bending bracket 1, and the outer wall of the rib plate 3 is fixedly connected to one side of the outer wall of the connecting pipe 2; the pipe to be bent is fixed by the hoop plate, so that the pipe bender can be fixed and conveniently operated during the operation of the pipe bending, and the bending degree can be better controlled;

[0030] Specifically, the setting of the positioning base 5 allows one end of the bent pipe to be fixed, and the combination of the internal bending piece 9 and the screw 10 provides a flexible way to allow the fixing method to be adjusted when bending a pipe with a smaller diameter. This design allows adaptive adjustment and fixation according to different pipe diameters. The bottom surface of the bending bracket 1 adopts a flat structure, which allows the operator to apply force with his feet to help bend the pipe. The guide groove of the positioning base 5 is used to pass through the pipe to be bent. The guide groove of the positioning base 5 is set as an arc guide groove with a straight axis. The outer wall of the bending piece 9 fits the inner wall of the positioning base 5. The inner wall guide groove of the bending pipe sheet 9 is also set as an arc guide groove with a straight axis, and the guide groove of the positioning base 5 is an arc guide groove with a straight axis, which ensures that the pipe section in the guide groove of the positioning base is not bent, and the boundary line of one end of the positioning base 5 close to the bending pipe bracket 1 is determined as the bending positioning line of the bending pipe. With the bending positioning line as the boundary, the pipe located on one side of the positioning base 5 is not bent, while the pipe located on one side of the bending pipe bracket 1 is bent. This design point solves the problem that the bending part of the bending pipe cannot be accurately positioned in the prior art, ensures accurate positioning, correct bending part, and ensures the accuracy of the pipe bending process.

[0031] The arrangement of the connecting pipe 2 and the rib plate 3 provides support and stability for the bent pipe bracket 1, ensuring that the bracket will not shift or become unstable during the bending process. The combination of the clamping plate 4 and the nut 11 with the bolt 6 provides another way to fix the pipe, which is suitable for pipes of different diameters. When the pipe diameter is large, the bolt 6 and the nut 11 are adjusted to loosen the clamping plate 4 to fix the pipe with a larger diameter. Similarly, by adjusting the bolt 6 and the nut 11, the clamping plate 4 is tightened to fix the pipe with a smaller diameter. This design ensures that when the pipe is bent, no matter how big the pipe diameter is, it can prevent it from slipping out of the bent pipe bracket 1.

[0032] Another implementation is that the bending piece 9 is slidably installed inside the positioning base 5, and the outer wall of the bending piece 9 is fitted against the inner wall of the positioning base 6. The processing requirements can be met without using connecting fixings for fixing. During the bending process, the pipe is fixed by the clamping piece 4, and the bending piece 9 is fitted against the outer wall of the pipe to be bent. When bending a small diameter pipe, the bending piece 9 is placed, and when bending a large diameter pipe, the bending piece 9 is removed to make it match the diameter of the pipe to be bent, thereby further improving the processing accuracy and ensuring that the pipe to be bent is fitted with the guide groove of the bending bracket 1.

[0033] Reference Figure 1 and Figure 3 The connecting tube 2 is internally threadedly connected with a telescopic rod 2 14, the outer wall of the telescopic rod 2 14 is slidably connected with a telescopic rod 1 13, the outer wall of the telescopic rod 13 is slidably connected with a hand-held rod 7, one side of the outer wall of the hand-held rod 7 is rotatably connected with a rotating handle 8, one side of the outer wall of the rotating handle 8 is fixedly connected with a screw rod 15, and one side of the inner side of the telescopic rod 13 is threadedly connected to the outer wall of the screw rod 15;

[0034] Specifically, the hand-held rod 7 is connected to the threaded connection inside the connecting pipe 2 through the telescopic rod 2 14 to firmly fix the bent pipe bracket 1 together. The hand-held rod 7 is equipped with a rotating handle 8, and the screw rod 15 can be driven to rotate by rotating the handle 8. During the rotation process, the screw rod 15 will drive the telescopic rod 1 13 to slide inside the hand-held rod 7, thereby realizing fine adjustment of the length of the hand-held rod 7.

[0035] Reference Figure 1 and Figure 3 The inner side of the telescopic rod 13 is fixedly connected with the slide rail 12, the outer wall of the slide rail 12 is rotatably connected with a rotating block 18, the outer wall of the screw rod 15 is provided with a ring array of limiting grooves 17, and the outer wall of the rotating block 18 is fixedly connected with a threaded column 16, the threaded column 16 is slidably connected inside the limiting groove 17, and the outer wall of the threaded column 16 is threadedly connected to the inner side of the telescopic rod 2 14;

[0036] Specifically, through the ingenious design of the limit groove 17, the threaded column 16 can be driven to rotate. This process is a key link in mechanical transmission. It enables the threaded column 16 to drive the rotating block 18 inside the telescopic rod 13 to rotate on the slide rail 12. In this way, as the threaded column 16 rotates, the telescopic rod 2 14 can slide inside the telescopic rod 13.

[0037] Working principle: The pipe bender can fix one end of the bent pipe by the positioning base 5, and bend it along the pipe bending bracket 1. A pipe bending piece 9 is arranged inside the positioning base 5, which can be fixed on the positioning base 5 by screws 10. When bending a pipe with a smaller diameter, the pipe bending piece 9 can be installed inside the positioning base 5, and when bending a pipe with a larger diameter, the pipe bending piece 9 can be removed. A clamping piece 4 is arranged on the pipe bending bracket 1, which can be tightened on the bolt 6 by a nut 11, so as to fix pipes of different diameters and prevent the pipes from slipping out of the pipe bending bracket 1 when bending. The bottom surface of the pipe bending bracket 1 is arranged as a flat structure, so that it is convenient to use the foot to bend the pipe bending bracket 1. A force is applied to assist the bending of the pipe. A connecting pipe 2 is provided at the bottom of the bent pipe bracket 1, and the bent pipe bracket 1 is supported by the rib plate 3. The hand-held rod 7 is threadedly connected to the inside of the connecting pipe 2 through the telescopic rod 14, so that the bent pipe bracket 1 is connected to the hand-held rod 7, and then the screw rod 15 is driven to rotate by rotating the handle 8, so that the screw rod 15 drives the telescopic rod 13 to slide out of the inside of the hand-held rod 7, and then the threaded column 16 is driven to rotate through the limit groove 17, and the threaded column 16 is rotated on the slide rail 12 provided inside the telescopic rod 13 through the rotating block 18, so that the threaded column 16 can drive the telescopic rod 14 to slide out of the telescopic rod 13, and the hand-held part can be retracted.

[0038] The above is only a detailed description of the specific implementation of the present invention, rather than a limitation of the present invention. Various substitutions, modifications and improvements made by those skilled in the relevant art without departing from the principle and scope of the present invention should be included in the protection scope of the present invention.

Claims

1. A metal pipe bending device suitable for multiple diameters, comprising a pipe bending support (1), characterized in that: A clamping plate (4) is provided on one side of the outer wall of the bent pipe bracket (1), bolts (6) are threadedly connected to both sides of the inner part of the clamping plate (4), nuts (11) are threadedly connected to one side of the outer wall of the bolts (6), a positioning base (5) is fixedly connected to one side of the outer wall of the bent pipe bracket (1), a bent pipe plate (9) is detachably connected to the inner part of the positioning base (5), and a support assembly is provided at the bottom of the bent pipe bracket (1).

2. The metal pipe bending device applicable to multiple diameters according to claim 1, characterized in that: The bottom surface of the curved pipe support (1) is arranged as a flat structure.

3. The metal pipe bending device applicable to multiple diameters according to claim 1, characterized in that: The guide groove of the positioning base (5) is configured as an arc guide groove with its axis being a straight line, the outer wall of the pipe bending piece (9) is fitted with the inner wall of the positioning base (5), and the guide groove of the inner wall of the pipe bending piece (9) is configured as an arc guide groove with its axis being a straight line.

4. The metal pipe bending device applicable to multiple diameters according to any one of claims 1 to 3, characterized in that: The support assembly comprises a rib plate (3) and a connecting pipe (2), the top of the connecting pipe (2) being fixedly connected to the bottom of the bent pipe support (1), and the outer wall of the rib plate (3) being fixedly connected to one side of the outer wall of the connecting pipe (2).

5. The metal pipe bending device applicable to multiple diameters according to claim 4, characterized in that: The connecting tube (2) is internally threadedly connected to a second telescopic rod (14), and the outer wall of the second telescopic rod (14) is slidably connected to a first telescopic rod (13).

6. The metal pipe bending device applicable to multiple diameters according to claim 5, characterized in that: The outer wall of the telescopic rod 1 (13) is slidably connected to a hand-held rod (7), and one side of the outer wall of the hand-held rod (7) is rotatably connected to a rotating handle (8).

7. The metal pipe bending device applicable to multiple diameters according to claim 6, characterized in that: A screw rod (15) is fixedly connected to one side of the outer wall of the rotating handle (8), and an inner side of the telescopic rod (13) is threadedly connected to the outer wall of the screw rod (15).

8. The metal pipe bending device applicable to multiple diameters according to claim 7, characterized in that: A slide rail (12) is fixedly connected to one side of the interior of the telescopic rod (13); a rotating block (18) is rotatably connected to the outer wall of the slide rail (12); and a ring-shaped array of limiting grooves (17) is formed on the outer wall of the screw rod (15).

9. The metal pipe bending device applicable to multiple diameters according to claim 8, characterized in that: A threaded column (16) is fixedly connected to one side of the outer wall of the rotating block (18), and the threaded column (16) is slidably connected to the inside of the limiting groove (17).

10. The metal pipe bending device applicable to multiple diameters according to claim 9, characterized in that: The outer wall of the threaded column (16) is threadedly connected to one side of the inner portion of the second telescopic rod (14).

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