CN216575018U

CN216575018U - Pipe bender

Info

Publication number: CN216575018U
Application number: CN202123348678.3U
Authority: CN
Inventors: 刘炳强; 张文涛; 张艳华
Original assignee: China Second Metallurgy Group Co Ltd
Current assignee: China Second Metallurgy Group Co Ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-05-24
Anticipated expiration: 2031-12-28

Abstract

The utility model relates to a pipe bender, which comprises an operating rod, a circular sleeve, a fixed steel pipe and a U-shaped control rod; the circular sleeve is arranged on one side of the front end of the operating rod, and flanges are arranged on two sides of the outer ring of the circular sleeve to form guide grooves for accommodating and guiding the pipe when the pipe is bent; the fixed steel pipe is arranged on one side of the front end of the operating rod, which is deviated from the circular sleeve, and is used for fixing a pipe during pipe bending; one end of an opening of the U-shaped control rod is rotatably arranged on the circular sleeve, the other end of the opening is provided with an inwards concave circular arc-shaped guide rod, and the circular arc-shaped guide rod is abutted against the pipe to guide when being used for bending the pipe. The pipe bender has the advantages of simple structure, labor-saving operation and convenient carrying, can finish the bending of pipes by one-man operation, can ensure higher pipe bending quality, can improve the pipe bending operation efficiency of a construction site, and is suitable for the pipe bending operation of various small-diameter pipes in engineering construction.

Description

Pipe bender

Technical Field

The utility model relates to a water and electricity engineering mounting tool technical field, more specifically relates to a tubular product hickey.

Background

With the increase of the basic construction of China and the investment of environmental protection engineering, a large number of electric wire pipes with different diameters such as DN16, DN20, DN25, DN32 and the like are usually designed in any high-rise building and need to be pre-buried when being matched with soil to be built for arranging reinforcing steel bars, the electric wire pipes are often required to be bent in the pre-buried process, at present, electric or hydraulic pipe benders are generally adopted when bending the pipes in the prior art, although the electric or hydraulic pipe benders in the prior art have the advantage of labor saving during use, the electric or hydraulic pipe benders have the defects of higher manufacturing cost, larger volume, heavy weight, inconvenient movement, limited use places, relatively fixed places and the like, particularly, a power supply needs to be connected during use, the electric wire benders cannot be used in some places without the power supply, and if hydraulic oil leakage causes environmental pollution, in addition, the conventional electric or hydraulic pipe bender occupies a large amount of auxiliary time in the use process, and consumes time, electricity and oil.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a tubular product hickey to solve current steel pipe hickey cost higher, bulky weight heavy, remove inconvenient, use place limited grade technical problem.

According to the utility model, a pipe bender is provided, which comprises an operating rod, a circular sleeve, a fixed steel pipe and a U-shaped control rod; wherein the content of the first and second substances,

the circular sleeve is arranged on one side of the front end of the operating rod, and flanges are arranged on two sides of the outer ring of the circular sleeve to form guide grooves for accommodating and guiding the pipe during pipe bending;

the fixed steel pipe is arranged on one side of the front end of the operating rod, which is deviated from the circular sleeve, and is used for fixing a pipe during pipe bending;

one end of an opening of the U-shaped control rod is rotatably arranged on the circular sleeve, the other end of the opening is provided with an inwards concave circular arc-shaped guide rod, and the circular arc-shaped guide rod is abutted against the pipe to guide when being used for bending the pipe.

Preferably, the circular sleeve is formed by cutting a circular steel pipe.

Preferably, the circular sleeve outer ring forms the rib by welding steel bars.

Preferably, the operating rod is further provided with a connecting rod, the diameter of the connecting rod is smaller than the inner diameter of the fixed steel pipe, the first end of the connecting rod is connected to the end, far away from the circular sleeve, of the operating rod, the second end of the connecting rod penetrates through the fixed steel pipe, and the axis of the connecting rod is collinear with the axis of the fixed steel pipe.

Preferably, a cylindrical helical compression spring is fixedly connected to the second end of the connecting rod.

Preferably, the length of the cylindrical helical compression spring is greater than 1/3 of the circumference of the circular sleeve.

Preferably, two flanges of the circular sleeve are correspondingly provided with a vertical plate respectively, a cross rod is connected between the two vertical plates, and one end of the opening of the U-shaped control rod is rotatably connected to the cross rod.

Preferably, the U-shaped control rod is made of steel bars, a circular ring is arranged at one end of an opening of the U-shaped control rod, and the U-shaped control rod is connected to the cross rod through the circular ring.

Preferably, two support rods are further arranged between the operating rod and the circular sleeve, first ends of the two support rods are respectively and fixedly connected to the operating rod, and second ends of the two support rods are respectively and fixedly connected to the blocking edges of the circular sleeve.

Preferably, the rear end of the operating rod is provided with an anti-slip sleeve, and the anti-slip sleeve is made of rubber materials.

The utility model provides a tubular product hickey, its simple structure, operation laborsaving, conveniently carry, one-man operation can accomplish the curved system to tubular product, and can guarantee higher return bend quality, also can improve job site's return bend operating efficiency simultaneously, is applicable to the return bend operation of the various small diameter tubular products in the engineering construction.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings.

Fig. 1 shows a schematic structural diagram of a pipe bender according to an embodiment of the present invention.

Fig. 2 shows a schematic view of a connection structure between a U-shaped control rod and a circular sleeve in a pipe bender according to an embodiment of the present invention.

In the figure: the device comprises an operating rod 1, an anti-skidding sleeve 11, a circular sleeve 2, a flange 21, a U-shaped control rod 3, a circular arc guide rod 31, a circular ring 32, a fixed steel pipe 4, a connecting rod 5, a cylindrical helical compression spring 6, a supporting rod 7, a vertical plate 8 and a cross rod 9.

Detailed Description

Various embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Like elements in the various figures are denoted by the same or similar reference numerals. For purposes of clarity, the various features in the drawings are not necessarily drawn to scale.

Referring to fig. 1, the utility model provides a pipe bender, which comprises an operating rod 1, a circular sleeve 2, a fixed steel pipe 4 and a U-shaped control rod 3; the circular sleeve 2 is arranged on one side of the front end of the operating rod 1, flanges 21 are arranged on two sides of the outer ring of the circular sleeve 2 to form guide grooves, and the guide grooves are used for accommodating and guiding the pipe when the pipe is bent; the fixed steel pipe 4 is arranged on one side of the front end of the operating rod 1, which is far away from the circular sleeve 2, and is used for fixing a pipe during pipe bending; one end of an opening of the U-shaped control rod 3 is rotatably arranged on the circular sleeve 2, the other end of the opening is provided with an inwards concave circular arc-shaped guide rod 31, and the circular arc-shaped guide rod 31 abuts against the pipe to guide when the pipe is bent.

Specifically, when the pipe bender is used for bending a pipe, the pipe to be bent is placed on the ground, one end of the pipe is inserted into the fixed steel pipe 4, the pipe is slowly and forcibly bent by holding the handle, the pipe is tightly attached to the guide groove in the circular sleeve 2 in the pipe bending process, the pipe is accommodated and guided in the pipe bending process through the guide groove, one end of the U-shaped control rod 3, which is provided with the arc-shaped guide rod 31, is abutted against the pipe after the pipe is bent to a certain angle, and the arc-shaped guide rod 31 on the U-shaped control rod 3 slides along the pipe in the bending process, so that the bent part and the straight part of the bent pipe are in the same plane, the bending quality of the pipe can be ensured, and the pipe is taken down from the pipe bender after the pipe bending process is finished.

In this embodiment, the circular sleeve 2 is formed by cutting a circular steel pipe. In other alternative embodiments, the circular sleeve 2 may also be formed by rolling and welding a steel plate with a certain thickness.

The outer ring of the circular sleeve 2 is formed by welding reinforcing steel bars, the flanges 21 are formed by bending the reinforcing steel bars into a circular shape, the inner diameter of the bent circular reinforcing steel bars is matched with the outer diameter of the circular sleeve 2, and then the circular reinforcing steel bars are welded and fixed at the edge positions of two sides of the outer ring of the circular sleeve 2. In addition, in other alternative embodiments, the outer ring of the circular sleeve 2 may be pressed to extend to an arc-shaped groove along the circumferential direction, so that the pipe can be accommodated and guided when being bent.

Further, still be equipped with connecting rod 5 on the action bars 1, the diameter of connecting rod 5 is less than the internal diameter of fixed steel pipe 4, the first end of connecting rod 5 is connected keep away from the one end of circular sleeve 2 on the action bars 1, the second end of connecting rod 5 wears to establish in fixed steel pipe 4, just the axis of connecting rod 5 with the axis collineation of fixed steel pipe 4. When the first end of connecting rod 5 is connected with the rear end of action bars 1, can bend at the tip of the first end of connecting rod 5, perhaps set up one on action bars 1 and connect the cushion to make connecting rod 5 connect behind action bars 1, its axis and fixed steel pipe 4 axis collineation. When the pipe is bent, after the pipe is inserted into the fixed steel pipe 4, the connecting rod 5 is inserted into the pipe, and the fixed steel pipe 4 and the connecting rod 5 respectively constrain and fix the pipe from the inside and the outside of the pipe.

The second end fixedly connected with cylinder helical compression spring 6 of connecting rod 5, the external diameter of cylinder helical compression spring 6 is less than the internal diameter of the tubular product of waiting to bend the system, establish its cover in the outside of cylinder helical compression spring 6 when tubular product is bent the system, during the return bend, cylinder helical compression spring 6 can support the bending of tubular product inside tubular product, cause the phenomenon that the bending is flat when preventing the return bend, the system of bending that is particularly useful for PVC pipe in the water and electricity installation, can show the return bend quality that improves the PVC pipe. The length of the cylindrical helical compression spring 6 is greater than 1/3 of the circumference of the circular sleeve 2, so that the cylindrical helical compression spring 6 can support the bent part of the pipe in a full section (the bending angle of most of the pipes is less than or equal to 90 degrees) when the pipe is bent.

In order to facilitate the installation of the U-shaped control rod 3, two flanges 21 of the circular sleeve 2 are respectively and correspondingly provided with a vertical plate 8, a cross rod 9 is connected between the two vertical plates 8, and one end of an opening of the U-shaped control rod 3 is rotatably connected to the cross rod 9, as shown in fig. 2. In the embodiment, the vertical plates 8 are made of flat steel or steel plates, the cross rods 9 are made of steel bars, the vertical plates 8 are welded on the flanges 21 of the circular sleeve 2, and the cross rods 9 are welded between the two vertical plates 8; the U-shaped control rod 3 is made of steel bars, a circular ring 32 is arranged at one end of an opening of the U-shaped control rod 3, and the U-shaped control rod 3 is connected to the cross rod 9 through the circular ring 32; wherein, ring 32 can weld on U type control lever 3, also can form through the curved system of reinforcing bar of 3 opening one ends of U type control lever, cross bar 9 wears to establish ring 32 earlier and then welds cross bar 9 and riser 8 together.

Two support rods 7 are further arranged between the operating rod 1 and the circular sleeve 2, first ends of the two support rods 7 are respectively and fixedly connected to the operating rod 1, and second ends of the two support rods 7 are respectively and fixedly connected to the flanges 21 of the circular sleeve 2. As shown in fig. 1, the two support rods 7 form a triangular support structure, which can increase the connection strength between the operating rod 1 and the circular sleeve 2, and prevent the connection failure between the operating rod 1 and the circular sleeve 2 due to the large stress at the front end of the operating rod 1 during bending, or the bending deformation of the front end of the operating rod 1 due to the overlarge bending moment. In this embodiment, the support rod 7 is made of steel bars.

In the embodiment, the operating rod 1 is made of a round steel pipe, so that the whole pipe bender is light in weight; the rear end of the operating rod 1 is also provided with an anti-slip sleeve 11, the anti-slip sleeve 11 is made of rubber materials, and anti-slip lines can be arranged on the surface of the protective sleeve. Through set up antiskid cover 11 on action bars 1, can increase the frictional force between user's hand and the action bars 1 when the return bend, the security when avoiding holding action bars 1 and appearing sliding improves the return bend operation.

The utility model provides a tubular product hickey's main advantage is: the pipe bending machine is simple in structure, labor-saving in operation and convenient to carry, can be used for bending pipes by one person, can ensure higher pipe bending quality, can improve the pipe bending efficiency of a construction site, and is suitable for pipe bending operation of various small-diameter pipes in engineering construction.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Finally, it should be noted that: it should be understood that the above examples are only for clearly illustrating the present invention and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious changes and modifications may be made without departing from the scope of the present invention.

Claims

1. A pipe bender is characterized by comprising an operating rod, a circular sleeve, a fixed steel pipe and a U-shaped control rod; wherein the content of the first and second substances,

2. The tube bender of claim 1 wherein said circular sleeve is cut from a circular steel tube.

3. The tubing bender of claim 1 wherein said collar is formed by welding steel bars to said circular sleeve outer race.

4. The pipe bender according to claim 1, wherein the operating rod is further provided with a connecting rod, the diameter of the connecting rod is smaller than the inner diameter of the fixed steel pipe, a first end of the connecting rod is connected to an end of the operating rod away from the circular sleeve, a second end of the connecting rod is inserted into the fixed steel pipe, and the axis of the connecting rod is collinear with the axis of the fixed steel pipe.

5. The tubing bender of claim 4 wherein a cylindrical helical compression spring is fixedly attached to the second end of said connecting rod.

6. The tubing bender of claim 5 wherein said cylindrical helical compression spring has a length greater than 1/3 of the circumference of said circular sleeve.

7. The pipe bender according to claim 1, wherein a vertical plate is correspondingly disposed on each of two flanges of the circular sleeve, a cross rod is connected between the two vertical plates, and an open end of the U-shaped control rod is rotatably connected to the cross rod.

8. The pipe bender according to claim 7, wherein said U-shaped control rod is made of steel bars, an open end of said U-shaped control rod is provided with a circular ring, and said U-shaped control rod is connected to said cross bar through said circular ring.

9. The pipe bender according to claim 1, wherein two support rods are further disposed between the operating rod and the circular sleeve, first ends of the two support rods are respectively and fixedly connected to the operating rod, and second ends of the two support rods are respectively and fixedly connected to the flanges of the circular sleeve.

10. The pipe bender according to claim 1, wherein the rear end of said operating rod is provided with an anti-slip sleeve, and said anti-slip sleeve is made of rubber material.