Portable pipe bender

Abstract

The present application relates to a portable pipe bender, including a fixed component and a rotating component; the fixed component includes a fixed base, an abutment member fixed on the fixed base, a first round tube and a second round tube; a gap is provided between the abutment member and the first round tube for placing a pressure-conducting tube, and the pressure-conducting tube bends and deforms around the first round tube; the rotating component includes a hand-held rod, a rotating rod and an abutment rod; the rotating rod and the abutment rod are both welded and fixed to the hand-held rod, the rotating rod is inserted into the second round tube, the abutment rod is used to abut against the pressure-conducting tube, and the abutment rod forces the pressure-conducting tube to bend along the outer circumference of the first round tube. In the present application, the staff rotates the rotating component so that the abutment rod forces the pressure-conducting tube to bend along the outer circumference of the first round tube; thereby facilitating the staff to bend a pressure-conducting tube with a large diameter and a thick wall outside the factory. At the same time, the rotating component is plugged and fixed to the fixed component, thereby facilitating the staff to carry the pipe bender when going out.

Description

Technical Field

[0001] The present application relates to the technical field of chemical equipment, and in particular to a portable pipe bender. Background Art

[0002] In petrochemical plants, power plants and other places, it is often necessary to install instruments (such as pressure gauges) on pipelines to detect various data in the pipelines.

[0003] In the prior art, the instrument is connected to the pipeline through a pressure pipe (also called a buffer pipe). In order to protect the internal mechanism of the instrument from the damage of the medium temperature and medium corrosiveness in the pipeline, the middle part of the pressure pipe needs to be bent into a circle to passivate the loss of the medium to the pressure gauge. At the same time, the circular bending of the pressure pipe can also reduce the vibration and impact caused by the flow of the medium in the pipeline.

[0004] As the production scale of petrochemical plants increases, the amount of pressure pipes installed for instruments also increases. Existing pipe bender can only bend pressure pipes with small diameter and thin wall; and the pipe bender is large in size and inconvenient for workers to carry. Utility Model Content

[0005] In order to facilitate workers to bend pressure-conducting pipes with large diameters and thick walls, the present application provides a portable pipe bender.

[0006] The present application provides a portable pipe bender, which adopts the following technical solution:

[0007] A portable pipe bender comprises a fixed component and a rotating component;

[0008] The fixed assembly includes a fixed base, an abutment member fixed on the fixed base, a first round tube and a second round tube; a gap is provided between the abutment member and the first round tube for placing the pressure pipe, the pressure pipe is bent and deformed around the first round tube, and the second round tube is arranged at the center of the first round tube; the rotating assembly includes a hand-held rod, a rotating rod and an abutment rod;

[0009] The rotating rod and the abutment rod are both welded and fixed to the hand-held rod. The rotating rod is inserted into the second round tube. The abutment rod is arranged on the side of the first round tube away from the second round tube. The abutment rod is used to abut against the pressure-conducting tube. The abutment rod forces the pressure-conducting tube to bend along the outer circumference of the first round tube.

[0010] By adopting the above technical solution, the staff sets the straight pressure-conducting pipe between the abutment and the first round pipe; and inserts the plug rod of the rotating assembly into the second round pipe, and the abutment rod abuts against the pressure-conducting pipe. During the rotation of the rotating assembly, the abutment rod forces the pressure-conducting pipe to bend along the outer circumference of the first round pipe; thus, it is convenient for the staff to bend the pressure-conducting pipe with a large diameter and thick wall outside the factory. At the same time, the rotating assembly is plugged and fixed with the fixed assembly, so that it is convenient for the staff to carry the pipe bender when going out.

[0011] Optionally, when the rotating rod abuts against the fixed base, an avoidance gap is provided between the abutting rod and the fixed base.

[0012] By adopting the above technical solution, the friction between the abutment rod and the fixed base is reduced, so that it is convenient for workers to rotate the rotating component.

[0013] Optionally, it also includes a support assembly, which includes a support rod and a plurality of scaffolding fasteners, the support rod is arranged on the side of the fixed base away from the first round tube, and the end of the support rod is fixed to the fixed base by a welding machine; the scaffolding fastener includes a first fastener and a second fastener, the first fastener is rotatably connected to the second fastener; the first fastener is fixedly connected to the support rod, and the second fastener is fixedly connected to the on-site steel pipe.

[0014] By adopting the above technical solution, the bender is fixed to the ground through the coordinated cooperation of the support rod and the scaffolding fasteners, so that there is a certain height between the fixed base and the ground, so that the staff can bend the pressure pipe.

[0015] Optionally, the support assembly further includes a reinforcing rod, one end of which is welded and fixed to the fixed base, and the other end of which is welded and fixed to the support rod, and the reinforcing rod is arranged at an angle to the support rod.

[0016] By adopting the above technical solution, the reinforcing rod improves the connection strength between the support rod and the fixed base, thereby improving the stability of the pipe bender.

[0017] Optionally, a limiting member is further included, wherein the limiting member is fixedly arranged on a side of the support rod away from the fixed base; the limiting member is used to abut against the first fastener.

[0018] By adopting the above technical solution, the limiter restricts the scaffolding fastener from sliding out of the support rod, so that the staff can carry the pipe bender of the present application when going out.

[0019] Optionally, the fixing assembly further comprises an arc-shaped guide member, which is fixed on the fixing base, and is disposed between the first circular tube and the abutment rod, and the guide member is provided with an abutment surface abutting against the pressure-conducting tube; along the direction away from the abutment member, the distance from the abutment surface to the fixing base increases gradually.

[0020] By adopting the above technical solution, when the rotating assembly forces the pressure-conducting tube to bend around the outer circumferential wall of the first circular tube, the guide increases the distance from the pressure-conducting tube to the fixed base, so that the middle part of the pressure-conducting tube bends into a spiral shape, reducing interference at both ends of the pressure-conducting tube and facilitating operation by staff.

[0021] Optionally, the rotating assembly further includes an abutment ball, which is fixed to one end of the abutment rod away from the rotating rod, the abutment ball is inserted into the second circular tube, and the abutment ball abuts against the fixed base.

[0022] By adopting the above technical solution, the abutment ball and the fixed base have a smaller contact area, thereby reducing the friction between the rotating component and the fixed component.

[0023] Optionally, the rotating assembly further includes a flexible member, wherein the flexible member is laid on the outer periphery of the abutment rod, and the flexible member is used to abut against the pressure guiding tube.

[0024] Through the above technical solution, the flexible member is used to abut against the pressure-conducting tube to reduce damage to the outer peripheral wall of the pressure-conducting tube.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. The staff places the straight pressure-conducting pipe between the abutment and the first round pipe; and inserts the plug-in rod of the rotating assembly into the second round pipe, so that the abutment rod abuts against the pressure-conducting pipe; during the rotation of the rotating assembly, the abutment rod forces the pressure-conducting pipe to bend along the outer circumference of the first round pipe; thus, it is convenient for the staff to bend the pressure-conducting pipe with a large diameter and thick wall outside the factory; at the same time, the rotating assembly is plugged and fixed with the fixed assembly, so that it is convenient for the staff to carry the pipe bender when going out;

[0027] 2. The purpose of fixing the bender on the ground is to ensure a certain height between the fixed base and the ground through the coordination of the support rod and the scaffold fastener, so that the staff can bend the pressure pipe;

[0028] 3. When the rotating assembly forces the pressure-conducting tube to bend around the outer circumferential wall of the first circular tube, the guide increases the distance from the pressure-conducting tube to the fixed base, so that the middle part of the pressure-conducting tube bends into a spiral shape, reducing interference at both ends of the pressure-conducting tube and facilitating operation by the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1It is a schematic diagram of the structure of the pipe bender in Example 1.

[0030] Figure 2 It is a partial exploded view of the bender structure in Example 1.

[0031] Figure 3 yes Figure 1 Enlarged view of point A in the middle.

[0032] Figure 4 It is a schematic diagram of the pipe bender structure in Example 2.

[0033] Figure 5 It is a partial exploded view of the bender structure in Example 2.

[0034] Explanation of the accompanying drawings: 1. Fixed assembly; 11. Fixed base; 12. Abutment; 13. First round tube; 14. Second round tube; 2. Support assembly; 21. Support rod; 22. Reinforcing rod; 23. Scaffolding fastener; 231. First fastener; 232. Second fastener; 24. Limiting member; 3. Rotating assembly; 31. Hand-held rod; 32. Rotating rod; 33. Abutment rod; 34. Abutment ball; 35. Flexible member; 4. Fixed steel pipe; 5. Pressure-conducting pipe; 6. Guide member. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-5 This application is described in further detail.

[0036] The present application embodiment discloses a portable pipe bender. Figure 1 The portable pipe bender includes a fixing component 1, a supporting component 2 and a rotating component 3.

[0037] Reference Figure 1 and Figure 2The fixed assembly 1 includes a fixed base 11, an abutment 12 fixed on the fixed base 11, a first circular tube 13 and a second circular tube 14. In the present embodiment, the fixed base 11 is made of a 10 mm thick steel plate to ensure the structural rigidity of the fixed base 11. A gap is provided between the abutment 12 and the first circular tube 13 for the pressure-conducting tube 5 to be placed. The pressure-conducting tube 5 is bent and deformed around the first circular tube 13. The second circular tube 14 is arranged at the center of the first circular tube 13, and the height of the second circular tube 14 is greater than the height of the first circular tube 13. In the present embodiment, the abutment 12 is an L-shaped angle steel, and the abutment 12 is welded and fixed to the fixed base 11; the abutment 12 is L-shaped to improve the connection strength between the abutment 12 and the fixed base 11. At the same time, the first circular tube 13 and the second circular tube 14 are both steel tubes, and the first circular tube 13 and the second circular tube 14 are both welded and fixed to the fixed base 11; the diameter of the first circular tube 13 is 100 mm and the height is 50 mm; the diameter of the second circular tube 14 is 15 mm and the height is 55 mm; so that the staff can use the larger outer circumferential wall of the first circular tube 13 to bend the pressure-conducting tube 5 with a large diameter and thick wall.

[0038] Reference Figure 1 and Figure 3 The support assembly 2 includes a support rod 21, a reinforcing rod 22, a scaffolding fastener 23 and a stopper 24. The support rod 21 is arranged on the side of the fixed base 11 away from the first round tube 13, and the end of the support rod 21 is welded to the fixed base 11. One end of the reinforcing rod 22 is welded to the fixed base 11, and the other end of the reinforcing rod 22 is welded to the support rod 21, and the reinforcing rod 22 is arranged at an angle to the support rod 21. The support rod 21 is supported by a DN40 steel pipe, and the support rod 21 is made of a DN20 steel pipe.

[0039] Reference Figure 1 and Figure 3 The scaffold is provided with a plurality of scaffold fasteners 23, which are arranged at intervals along the support rod 21. In this embodiment, two scaffold fasteners 23 are provided; in other embodiments, the number of scaffold fasteners 23 can be three, four, etc.

[0040] Reference Figure 1 and Figure 3, the scaffolding fastener includes a first fastener 231 and a second fastener 232, and the first fastener 231 is rotatably connected to the second fastener 232. The first fastener 231 is fixedly connected to the support rod 21, and the second fastener 232 is fixedly connected to the on-site steel pipe; thereby the pipe bender of the present application is fixed on the ground, so that there is a certain height between the fixed base 11 and the ground, so that the staff can bend the pressure-conducting pipe 5. The limiter 24 is fixedly arranged on the side of the support rod 21 away from the fixed base 11; the limiter 24 is used to abut against the first fastener 231 to limit the scaffolding fastener 23 from sliding out of the support rod 21, so that the staff can carry the pipe bender of the present application when going out. The limiter 24 can be a rigid material such as a steel block, a rubber block or a silicone block; in the present embodiment, the limiter 24 is a rubber block, and the limiter block is bonded and fixed to the support rod 21.

[0041] Reference Figure 1 and Figure 3 In this embodiment, the factory building has two horizontally arranged fixed steel pipes 4, and the two fixed steel pipes 4 are located on the same vertical plane. The staff carries the pipe bender of the present application to the designated location, connects the two second fasteners 232 to the two fixed steel pipes 4 clamps respectively, and tightens the bolts on the first fastener 231, so that the first fastener 231 is fixedly connected to the support rod 21; thereby achieving the purpose of fixing the bender on the ground.

[0042] Reference Figure 1 and Figure 2 The rotating assembly 3 includes a hand-held rod 31, a rotating rod 32 and an abutting rod 33. The rotating rod 32 and the abutting rod 33 are both welded and fixed to the hand-held rod 31, and the rotating rod 32 and the abutting rod 33 are both arranged in an F shape with the hand-held rod 31. The rotating rod 32 is inserted into the second circular tube 14, and the abutting rod 33 is arranged on the side of the first circular tube 13 away from the second circular tube 14, and the abutting rod 33 is used to abut against the pressure-conducting tube 5. In this embodiment, the hand-held rod 31, the rotating rod 32 and the abutting rod 33 are all made of DN20 steel pipe. The rotating assembly 3 is plugged and fixed with the fixed assembly 1, so as to facilitate the staff to carry the pipe bender when going out; when the staff arrives at the designated location, the rotating assembly 3 is assembled into one with the fixed assembly 1 to bend the pressure-conducting tube 5.

[0043] Reference Figure 1 and Figure 2 , the staff puts the straight pressure-conducting pipe 5 between the abutment 12 and the first round tube 13; and inserts the plug-in rod of the rotating assembly 3 into the second round tube 14, the inner diameter of the second round tube 14 is larger than the outer diameter of the plug-in rod; so that the rotating assembly 3 can rotate around the second round tube 14. During the rotation of the rotating assembly 3, the abutment rod 33 abuts against the pressure-conducting pipe 5, and the abutment rod 33 forces the pressure-conducting pipe 5 to bend along the outer circumference of the first round tube 13; so that the staff can easily bend the pressure-conducting pipe 5 with a large diameter and thick wall outside the factory.

[0044] Reference Figure 1 and Figure 2 In this embodiment, the length of the rotating rod 32 is greater than that of the abutting rod 33, so that an avoidance gap is provided between the abutting rod 33 and the fixed base 11, thereby reducing the friction between the abutting rod 33 and the fixed base 11, so that the staff can rotate the rotating component 3 to force the pressure-conducting tube 5 to bend and deform, so that the middle part of the pressure-conducting tube 5 bends into a circle.

[0045] Example 2

[0046] The difference between this embodiment 2 and embodiment 1 is that:

[0047] Reference Figure 4 and Figure 5 The fixed component 1 also includes an arc-shaped guide member 6, which is fixed on the fixed base 11. The guide member 6 is arranged between the first circular tube 13 and the abutment rod 33. The guide member 6 is provided with an abutment surface abutting against the pressure-conducting tube 5; along the direction away from the abutment member 12, the distance from the abutment surface to the fixed base 11 increases. Therefore, when the rotating component 3 forces the pressure-conducting tube 5 to bend around the outer peripheral wall of the first circular tube 13, the distance from the pressure-conducting tube 5 to the fixed base 11 increases, so that the middle part of the pressure-conducting tube 5 bends into a spiral shape, reducing the interference between the two ends of the pressure-conducting tube 5, and facilitating the operation of the staff. The guide member 6 can be a steel plate, or a material with fixed rigidity such as a rubber plate; in the present embodiment, the guide member 6 is a rubber plate, and the guide member 6 is bonded and fixed to the fixed base 11.

[0048] Reference Figure 4 and Figure 5 , the rotating assembly 3 also includes an abutment ball 34 and a flexible member 35. The abutment ball 34 is fixed to the end of the abutment rod 33 away from the rotating rod 32, and the abutment ball 34 is inserted into the second circular tube 14, and the abutment ball 34 is used to abut against the fixed base 11 and the inner circumferential wall of the second circular tube 14; so that when the rotating assembly 3 rotates, the abutment ball 34 has a smaller contact area with the fixed base 11, thereby reducing the friction between the rotating assembly 3 and the fixed assembly 1, and facilitating the staff to rotate the rotating assembly 3. At the same time, since the abutment rod 33 will slide relative to the surface of the pressure-conducting tube 5, the abutment rod 33 causes certain damage to the outer circumferential wall of the pressure-conducting tube 5. Therefore, in the embodiment of the present application, the flexible member 35 is laid on the outer periphery of the abutment rod 33, and the flexible member 35 is used to abut against the pressure-conducting tube 5 to reduce damage to the outer circumferential wall of the pressure-conducting tube 5. The flexible member 35 may be made of flexible materials such as a rubber sheet or a cloth sheet. In the present embodiment, the flexible member 35 is a rubber sheet, and the flexible member 35 is bonded and fixed to the abutting rod 33 .

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A portable pipe bender, characterized in that: The invention comprises a fixed component (1) and a rotating component (3); the fixed component (1) comprises a fixed base (11), an abutment member (12) fixedly arranged on the fixed base (11), a first round tube (13) and a second round tube (14); a gap is provided between the abutment member (12) and the first round tube (13) for placing a pressure-conducting tube (5); the pressure-conducting tube (5) is bent and deformed around the first round tube (13); the second round tube (14) is arranged at the center of the first round tube (13); the rotating component (3) comprises a fixed base (11), abutment member (12) fixedly arranged on the fixed base (11), a first round tube (13) and a second round tube (14); a gap is provided between the abutment member (12) and the first round tube (13) for placing a pressure-conducting tube (5); the pressure-conducting tube (5) is bent and deformed around the first round tube (13); the second round tube (14) is arranged at the center of the first round tube (13); The invention comprises a hand-held rod (31), a rotating rod (32) and an abutting rod (33); the rotating rod (32) and the abutting rod (33) are both welded and fixed to the hand-held rod (31); the rotating rod (32) is inserted into the second round tube (14); the abutting rod (33) is arranged on a side of the first round tube (13) away from the second round tube (14); the abutting rod (33) is used to abut against the pressure-conducting tube (5); the abutting rod (33) forces the pressure-conducting tube (5) to bend along the outer circumference of the first round tube (13).

2. The portable pipe bender according to claim 1, characterized in that: When the rotating rod (32) abuts against the fixed base (11), an escape gap is provided between the abutting rod (33) and the fixed base (11).

3. The portable pipe bender according to claim 1, characterized in that: The invention also comprises a support assembly (2), wherein the support assembly (2) comprises a support rod (21) and a plurality of scaffolding fasteners (23), wherein the support rod (21) is arranged on a side of the fixed base (11) away from the first round tube (13), and an end of the support rod (21) is welded to the fixed base (11); the scaffolding fasteners comprise a first fastener (231) and a second fastener (232), wherein the first fastener (231) is rotatably connected to the second fastener (232); the first fastener (231) is fixedly connected to the support rod (21), and the second fastener (232) is fixedly connected to an on-site steel pipe.

4. The portable pipe bender according to claim 3, characterized in that: The support assembly (2) further comprises a reinforcing rod (22), one end of the reinforcing rod (22) being welded and fixed to the fixed base (11), and the other end of the reinforcing rod (22) being welded and fixed to the support rod (21), and the reinforcing rod (22) and the support rod (21) being arranged at an angle.

5. The portable pipe bender according to claim 3, characterized in that: It also comprises a limiting member (24), wherein the limiting member (24) is fixedly arranged on a side of the support rod (21) away from the fixed base (11); the limiting member (24) is used to abut against the first fastener (231).

6. The portable pipe bender according to claim 1, characterized in that: The fixing assembly (1) further comprises an arc-shaped guide member (6), the guide member (6) being fixedly mounted on the fixing base (11), the guide member (6) being arranged between the first round tube (13) and the abutment rod (33), the guide member (6) being provided with an abutment surface abutting against the pressure-guiding tube (5); and the distance from the abutment surface to the fixing base (11) gradually increases in a direction away from the abutment member (12).

7. The portable pipe bender according to claim 1, characterized in that: The rotating assembly (3) further comprises an abutment ball (34), the abutment ball (34) being fixedly arranged at one end of the abutment rod (33) away from the rotating rod (32), the abutment ball (34) being inserted into the second circular tube (14), and the abutment ball (34) being in abutment with the fixed base (11).

8. The portable pipe bender according to claim 1, characterized in that: The rotating assembly (3) further comprises a flexible member (35), wherein the flexible member (35) is laid on the outer periphery of the abutment rod (33), and the flexible member (35) is used to abut against the pressure guiding tube (5).

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