Short pipe S-bend pipe bender

Abstract

The utility model relates to a short pipe S-bend pipe bender which comprises a structural rod piece, and the structural rod piece comprises a fixing rod and a bending rod rotationally connected with the fixing rod. The bending assembly comprises a bending track fixedly arranged on one side of the fixing rod and a bending part fixedly arranged on the bending rod, the bending track is a semicircular pipe, an opening of the semicircular pipe faces outwards, the axis of the bending track coincides with a rotating point of the bending rod, and a semicircular groove with the same inner diameter as the semicircular pipe is formed in the bending part; the diameter of the bending piece semicircular groove is equal to that of the bending track semicircular pipe; when the bending assembly is used, a to-be-bent rod piece is arranged between the bending rail of the bending assembly and the bending piece in a penetrating mode, the initial position is located at one end of the fixing rod, one end of the rod piece is arranged in a circular groove formed in the positioning piece in a penetrating mode, the bending rod is rotated, and then the to-be-bent rod piece can be bent. The bending device has the effects that the structure is simple, operation is convenient, and the rod piece can be conveniently bent on the construction site.

Description

Technical Field

[0001] The present application relates to the field of utility tool technology, and in particular to a short tube S-bend bender. Background Art

[0002] At present, during the equipment installation project, the traditional manual pipe bender needs to place the pipe on the ground, adjust the position of the pipe bender, step on the pipe with your feet, and press the pipe bender with both hands to complete the pipe bending. The bending accuracy of this method currently used is not high, and it requires two people to cooperate. In addition, the traditional pipe bender is easy to bend the short pipe and cause quality defects such as pipe flattening, which leads to quality problems.

[0003] For example, a pipe bender includes a locking block, a dividing plate, a first forming wheel, a handle, and a second forming wheel. The dividing plate has an arc-shaped circumference, and a plurality of spherical grooves are evenly spaced on the arc-shaped circumference. A ball positioning screw is fixed on the handle, and during the rotation of the handle, the positioning ball of the ball positioning screw matches with the spherical groove on the dividing plate. By using the ball positioning screw on the dividing plate and the handle, the bending angle of the pipe can be accurately controlled, and the operation is simple and does not depend on the skill level of the operator. By replacing the forming wheel set and the locking block as a set, it can adapt to the bending work of different pipe diameters. When the two forming wheels are locked by the positioning pin, the bending angle of the pipe can be accurately controlled and read; for situations where precise control of the bending angle is not required, the two forming wheels are released to rotate freely, and the pipe bending operation is more labor-saving.

[0004] The above invention improves the accuracy of pipe bending, but the equipment is expensive and not conducive to handling operations, and is not suitable for on-site operations. Utility Model Content

[0005] In order to improve the operability of on-site pipe bending, the present application provides a short pipe S-bend pipe bender.

[0006] The short tube S-bend bender provided in this application adopts the following technical solution:

[0007] A short tube S-bend bender, comprising

[0008] A structural rod, wherein the structural rod comprises a fixed rod and a bending rod rotatably connected to the fixed rod;

[0009] A bending assembly, the bending assembly comprising a bending track fixedly arranged on one side of the fixing rod and a bending piece fixedly arranged on the bending rod, the bending track is a semicircular semicircular tube, the semicircular tube opens outward and the axis of the bending track coincides with the rotation point of the bending rod, the bending piece is provided with a semicircular groove having the same inner diameter as the semicircular tube, and the semicircular groove of the bending piece has the same diameter as the semicircular tube of the bending track;

[0010] A positioning member is fixedly arranged on the other side of the fixing rod, and the positioning member is provided with a circular groove having the same diameter as the semicircular tube of the curved track, and the circular groove is arranged tangent to the curved track.

[0011] By adopting the above technical solution, when in use, the rod to be bent is passed between the bending track and the bending member of the bending assembly, and the initial position is located at one end of the fixed rod, wherein one end of the rod is passed through the circular groove opened by the positioning member, and the bending rod is rotated to bend the rod to be bent. The structure is simple and the operation is convenient, and it is convenient to bend the rod at the construction site.

[0012] Preferably, a U-shaped groove is provided at the rotation position of the bending rod and the fixing rod, and a clamping shaft is fixedly arranged on the fixing rod, and the clamping shaft is passed through the U-shaped groove.

[0013] By adopting the above technical solution, a U-shaped groove is opened at the position where the bending rod and the fixed rod rotate. When in use, the rod to be bent is placed in the circle outside the bending track, the bending rod is hung on the clamping shaft through the U-shaped groove, and then the bending rod is rotated to bend the rod to be bent, which is convenient for installation of the rod to be bent and saves installation time of the rod to be bent.

[0014] Preferably, the bending rod is a bent rod, and the bending direction of the bending rod is toward the direction of the fixed rod.

[0015] By adopting the above technical solution, when bending the rod to be bent, it is necessary to bend from one side of the curved track to the other side of the curved track. In the initial position, the bending part and the fixing part are in a state of alignment, and it is not easy to apply force. By setting the bending rod as a bending rod, it is convenient to apply force to the bending rod, so as to facilitate bending of the part to be bent.

[0016] Preferably, the bending member is a pulley structure rotatably connected to the bending rod.

[0017] By adopting the above technical solution, due to the bending characteristics of the rod, the bent rod is prone to quality defects such as pipe flattening. The bending piece is set as a pulley, which can improve the qualified rate of the bent rod when bending the piece to be bent.

[0018] Preferably, the fixing rod has a first long slot hole along the length direction where the clamping shaft and the bending part rotate, and the clamping shaft is fixed after moving along the long slot hole. The bending rod has a second long slot hole along the length direction where the rotating shaft and the bending part rotate, and the rotating shaft is fixed after moving along the length direction of the long slot hole.

[0019] By adopting the above technical solution, the bending radii of the parts to be bent are different, and curved tracks with different radii can be set. In order to ensure that the clamping shaft and the curved track are coaxial, a first long slot hole is opened on the fixed rod to facilitate the movement of the clamping shaft. Similarly, a second long slot hole is opened on the bending rod to facilitate the movement of the bending part, so that rods with different requirements can be bent.

[0020] Preferably, the positioning member is movable along the length direction of the fixing rod.

[0021] By adopting the above technical solution, the diameter of the curved track is different for different thicknesses of the parts to be bent, the top of the groove of the positioning member is tangent to the circle where the curved track is located, and the positioning member is set to move along the length direction of the fixing rod to ensure better fixation of the parts to be bent.

[0022] Preferably, the positioning member is configured to be L-shaped, and one end is fixedly connected to the fixing rod, and one end of the member to be bent is fixed at a distance from the positioning rod.

[0023] By adopting the above technical solution, when the workpiece to be bent is bent, the positioning member positions one end of the workpiece to be bent, and a certain distance is set between the end of the workpiece to be bent and the positioning rod, which can facilitate the bending force of the workpiece to be bent and save bending force.

[0024] Preferably, a reinforcing rib is provided between the positioning member and the fixing rod.

[0025] By adopting the above technical solution, the fixing of the fixing member to the part to be bent can be strengthened by arranging reinforcing ribs, so as to prevent the fixing member from bending and affecting the bending effect of the part to be bent.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. By setting up structural rods, bending components and positioning components, the rod to be bent is inserted between the bending track of the bending component and the bending component when in use, and the initial position is located at one end of the fixed rod, wherein one end of the rod is inserted into the circular groove opened by the positioning component, and the bending rod is rotated to bend the rod to be bent. The structure is simple and the operation is convenient, and it is convenient to bend the rod at the construction site;

[0028] 2. A U-shaped groove is opened at the position where the bending rod and the fixed rod rotate. When in use, the rod to be bent is placed in the circle outside the bending track, and the bending rod is hung on the clamping shaft through the U-shaped groove. Then the bending rod is rotated to bend the rod to be bent, which is convenient for installation of the rod to be bent and saves installation time of the rod to be bent;

[0029] 3. When bending the rod to be bent, it is necessary to bend from one side of the bending track to the other side of the bending track. In the initial position, the bending part and the fixing part are in a state of alignment, and it is not easy to apply force. By setting the bending rod as a bending rod, it is convenient to apply force to the bending rod, so as to facilitate bending of the part to be bent. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the structure of a short tube S-bend bender of the present application.

[0031] Figure 2 This is an exploded view of this application.

[0032] Explanation of the reference numerals: 1. Structural rod; 11. Fixing rod; 111. Clamping shaft; 112. First long slot hole; 12. Bending rod; 121. Mounting piece; 1211. U-shaped slot; 1212. Rotating shaft; 1213. Second long slot hole; 122. Handle; 2. Bending assembly; 21. Bending track; 22. Bending piece; 3. Positioning piece; 31. Reinforcing rib. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-2 This application is described in further detail.

[0034] The present application embodiment discloses a short tube S-bend bender. Figure 1 The short tube S-bend bender includes a structural rod 1, a bending component 2 and a positioning member 3.

[0035] The structural rod 1 includes a fixed rod 11 and a bending rod 12. The fixed rod 11 is a rectangular metal rod. The fixed rod 11 is provided with a clamping shaft 111. The fixed rod 11 has a first long slot hole 112 on the side where the clamping shaft 111 is located. The rotating shaft 1212 can move along the first long slot hole 112, and then the clamping shaft 111 is fixed at a desired position by a nut.

[0036] Reference Figure 2 The bending rod 12 is divided into a mounting member 121 and a handle 122, the mounting member 121 and the handle 122 are fixedly connected, the mounting member 121 is a U-shaped member, clamped on both sides of the fixed rod 11, and has a U-shaped groove 1211, the U-shaped groove 1211 is clamped on the clamping shaft 111 and is rotatably connected to the fixed rod 11;

[0037] The handle 122 is a round rod or a square rod. In this embodiment, it is set as a square rod and is welded to the bottom end of the U-shaped member. The angle between the handle 122 and the mounting member 121 can be set to 135 degrees.

[0038] The bending component 2 includes a bending track 21 and a bending part 22. The bending track 21 is a semicircular semicircular tube part. The opening of the semicircular tube faces outward. The bending track 21 is fixedly set on one side of the fixed rod 11. The axis of the semicircular tube coincides with the axis of the rotating shaft 1212. One end of the semicircular tube is tangent to the end face of the fixed rod 11 where the rotating shaft 1212 is located, and the other end is fixedly set to the fixed rod 11.

[0039] The bending member 22 is arranged on the mounting member 121, and the bending member 22 can be arranged as a pulley. The mounting member 121 is provided with a rotating shaft 1212, and the rotating shaft 1212 is passed through the axis of the pulley. The pulley can rotate along the rotating shaft 1212. A semicircular arc groove is provided on the surface of the pulley, and the diameter of the semicircular arc groove is equal to the inner diameter of the semicircular tube.

[0040] The mounting member 121 is provided with a second long slot hole 1213 along the length direction in the plane where the rotating shaft 1212 is located. The rotating shaft 1212 can move in the second long slot hole 1213 and can move the pulley to a position where the semicircular groove is tangent to the semicircular tube.

[0041] The positioning member 3 is fixedly arranged on the opposite side of the fixed rod 11 and the curved track 21. The positioning member 3 is U-shaped, and a circular groove with the same diameter as the semicircular tube of the curved track 21 is opened on one side parallel to the fixed rod 11. The circular groove is arranged tangent to the semicircular tube of the curved track 21, and the other end is fixedly connected to the positioning rod and can be moved along the length direction of the positioning rod to ensure that the top of the groove of the positioning member 3 is always tangent to the circle where the curved track 21 is located due to the different thicknesses of the parts to be bent and the different diameters of the curved track 21.

[0042] The positioning member 3 is also provided with reinforcing ribs 31 to strengthen the fixation of the fixing member to the part to be bent, thereby preventing the fixing member from bending and affecting the bending effect of the part to be bent.

[0043] When in use, the rod to be bent is inserted between the bending track 21 and the bending member 22 of the bending component 2. The initial position is located at one end of the fixed rod 11, wherein one end of the rod is inserted into the circular groove opened by the positioning member 3. The bending rod 12 is rotated to bend the rod to be bent.

[0044] The implementation principle of a short tube S-bend bender in the embodiment of the present application is as follows: a structural rod 1, the structural rod 1 includes a fixed rod 11 and a bending rod 12 rotatably connected to the fixed rod 11; a bending component 2, the bending component 2 includes a bending track 21 fixedly arranged on one side of the fixed rod 11 and a bending piece 22 fixedly arranged on the bending rod 12, the bending track 21 is a semicircular semicircular tube, the semicircular tube opens outward and the axis of the bending track 21 coincides with the rotation point of the bending rod 12, the bending piece 22 has a semicircular groove with the same inner diameter as the semicircular tube, and the semicircular groove of the bending piece 22 has the same diameter as the semicircular tube of the bending track 21; a positioning member 3, the positioning member 3 is fixedly arranged on the other side of the fixed rod 11, when in use, the rod to be bent is inserted between the bending track 21 and the bending piece 22 of the bending component 2, and the initial position is located at one end of the fixed rod 11, wherein one end of the rod is inserted into the circular groove opened by the positioning member 3, and the bending rod 12 is rotated to bend the rod to be bent. The application has the advantages of simple structure, convenient operation and convenience for bending the rods at the construction site.

[0045] 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 short tube S-bend bender, characterized in that: include A structural rod (1), the structural rod (1) comprising a fixed rod (11) and a bending rod (12) rotatably connected to the fixed rod (11); A bending component (2), the bending component (2) comprising a bending track (21) fixedly arranged on one side of the fixing rod (11) and a bending piece (22) fixedly arranged on the bending rod (12), the bending track (21) being a semicircular semicircular tube, the semicircular tube opening outwards and the axis of the bending track (21) coinciding with the rotation point of the bending rod (12), the bending piece (22) being provided with a semicircular groove having the same inner diameter as the semicircular tube, and the semicircular groove of the bending piece (22) having the same diameter as the semicircular tube of the bending track (21); A positioning member (3), wherein the positioning member (3) is fixedly arranged on the other side of the fixing rod (11), and the positioning member (3) is provided with a circular groove having the same diameter as the semicircular tube of the curved track (21), and the circular groove is arranged tangent to the curved track (21).

2. The short tube S-bend bender according to claim 1, characterized in that: A U-shaped groove (1211) is provided at the rotational position of the bending rod (12) and the fixing rod (11); a clamping shaft (111) is fixedly arranged on the fixing rod (11); and the clamping shaft (111) is inserted into the U-shaped groove (1211).

3. The short tube S-bend bender according to any one of claims 1-2, characterized in that: The bending rod (12) is a bent rod, and the bending direction of the bending rod (12) is toward the direction of the fixing rod (11).

4. The short tube S-bend bender according to claim 1, characterized in that: The bending member (22) is a pulley structure rotatably connected to the bending rod (12); the pulley is rotatably connected to the bending rod (12) via a rotating shaft (1212).

5. The short tube S-bend bender according to claim 4, characterized in that: The fixing rod (11) is provided with a first long slot hole (112) along the length direction where the clamping shaft (111) and the bending member (22) rotate, and the clamping shaft (111) is fixed after being moved along the long slot hole; the bending rod (12) is provided with a second long slot hole (1213) along the length direction where the rotating shaft (1212) and the bending member (22) rotate, and the rotating shaft (1212) is fixed after being moved along the length direction of the long slot hole.

6. The short tube S-bend bender according to claim 1, characterized in that: The positioning member (3) can move along the length direction of the fixing rod (11).

7. The short tube S-bend bender according to claim 6, characterized in that: The positioning member (3) is arranged in an L shape, and one end is fixedly connected to the fixing rod (11), and one end of the fixing member (22) to be bent is spaced apart from the fixing rod (11).

8. The short tube S-bend bender according to claim 7, characterized in that: A reinforcing rib (31) is provided between the positioning member (3) and the fixing rod (11).

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