Combined bent pipe structure

Abstract

The utility model relates to the technical field of die equipment, in particular to a combined type bent pipe structure which comprises at least two bent pipe units, each bent pipe unit is provided with at least one inclined connecting face, and the bent pipe units are sequentially connected through the inclined connecting faces to form the bent pipe structure. According to the bent pipe structure, the inclined connecting faces are arranged on the surfaces of the bent pipe units, when two or more bent pipe units are connected through the inclined connecting faces, a certain inclined angle is formed, the angle of the bent pipe structure can be continuously increased along with the increase of the number of the bent pipe units and the connection of the bent pipe units till the bent pipe structure reaches the needed angle, and therefore the bent pipe structure is more attractive. Therefore, free combination and adjustment according to the needed angle are achieved, and the manufacturing difficulty of the bent pipe structure is lowered.

Description

Technical Field

[0001] This utility model relates to the field of pipeline equipment technology, and in particular to a combined pipe bend structure. Background Technology

[0002] Currently, pipe bending is usually done by bending pipes with a pipe bending machine. However, pipe bending machines can only bend pipes with small diameters. For pipes with large diameters, pipe bending machines cannot be used and usually need to be assembled. However, during assembly, the pipe can only be bent at a fixed angle and cannot be adjusted.

[0003] Therefore, there is an urgent need to design a combined pipe bending structure that allows for flexible adjustment of the pipe bending angle. Utility Model Content

[0004] In view of the problems existing in the background technology, the present invention provides a bending pipe structure that can be freely combined according to the number of bending pipe units to adjust the bending angle.

[0005] This utility model embodiment proposes a combined pipe bending structure, including at least two pipe bending units, each of the at least two pipe bending units having at least one inclined connecting surface, and the pipe bending units being connected sequentially through the inclined connecting surfaces to form a pipe bending structure.

[0006] In an optional embodiment, the pipe bending unit includes a first pipe bending unit and a second pipe bending unit, wherein one end of the first pipe bending unit has a connecting flange for connecting to an external pipe, the other end of the first pipe bending unit has a first inclined connecting surface, and the second pipe bending unit is connected to the first inclined connecting surface of the first pipe bending unit.

[0007] In an optional embodiment, the two ends of the second bend unit are respectively provided with a second inclined connecting surface and a third inclined connecting surface, and the second inclined connecting surface and the third inclined connecting surface are not parallel.

[0008] In an optional embodiment, the size of the inclined connection surface of the bend unit is adapted.

[0009] In an optional embodiment, the inclined connecting surfaces of the pipe bending unit have the same inclination angle.

[0010] In an optional embodiment, the formula for calculating the included angle between the two bent pipe units formed by the inclined connecting surface is:

[0011] 360° - (2*α);

[0012] Where α is the inclination angle of the inclined connecting surface.

[0013] In an optional embodiment, the second bending unit is provided with a guide ring, which is movable along the axial direction of the second bending unit. A limit bolt is threaded onto the guide ring, and the limit bolt contacts the surface of the first bending unit or another second bending unit and is parallel to its axial direction.

[0014] In an optional embodiment, the inclination angles of the first inclined connecting surface, the second inclined connecting surface, and the third inclined connecting surface are all 7.5°.

[0015] In an optional embodiment, the first bend unit and the second bend unit are fixed by welding.

[0016] Compared with the prior art, the present invention has the following beneficial technical effects:

[0017] This invention provides an inclined connecting surface on the surface of the pipe bending unit. When two or more pipe bending units are connected through the inclined connecting surface, a certain inclination angle is formed. As the number of pipe bending units increases and they are connected, the angle of the pipe bending structure will continuously increase until the pipe bending structure reaches the required angle. This allows for free combination and adjustment according to the required angle, reducing the manufacturing difficulty of the pipe bending structure. Attached Figure Description

[0018] Figure 1 This is a front view of the bent pipe structure in an embodiment of this utility model;

[0019] Figure 2 This is a schematic diagram of the guide ring being installed on the bent pipe structure in an embodiment of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the first bending unit in this embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the second bending unit in this embodiment of the present invention;

[0022] Figure 5 for Figure 2 Enlarged view of a portion of point A in the middle.

[0023] Reference numerals: 100 is the first bend unit; 110 is the first inclined connecting surface; 120 is the connecting flange; 200 is the second bend unit; 210 is the second inclined connecting surface; 220 is the third inclined connecting surface; 300 is the guide ring; 310 is the limit bolt. Detailed Implementation

[0024] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "vertical", "horizontal", "inner", "outer", "front", "back", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] like Figure 1 As shown in the figure, the present invention proposes a combined pipe bending structure, which includes multiple pipe bending units. Each of the multiple pipe bending units has at least one inclined connecting surface. The pipe bending units are connected sequentially through the inclined connecting surfaces to form a pipe bending structure.

[0027] By setting an inclined connecting surface on the surface of the pipe bending unit, when two or more pipe bending units are connected through the inclined connecting surface, a certain inclination angle is formed. As the number of pipe bending units increases and they are connected, the angle of the pipe bending structure will continuously increase until the pipe bending structure reaches the required angle. This allows for free combination and adjustment according to the required angle, reducing the manufacturing difficulty of the pipe bending structure.

[0028] It should be noted that the sizes of the inclined connecting surfaces of the pipe bending units are matched, and the inclination angles of the inclined connecting surfaces of the pipe bending units are the same. By matching the sizes of the inclined connecting surfaces of the pipe bending units and setting the inclination angles to the same extent, it is possible to facilitate welding of the pipe bending units after connection, and also to give the pipe bending units a specific angle after welding.

[0029] Specifically, the formula for calculating the included angle between the bends formed by the inclined connecting surfaces of the two bend units is as follows:

[0030] 360° - (2*α);

[0031] Where α is the inclination angle of the inclined connecting surface.

[0032] Reference Figure 1As shown, in this embodiment, the first bend unit 100 and the second bend unit 200 are connected to form an included angle B. Taking the inclination angle of the inclined connecting surface as 7.5° as an example, the angle of included angle B is 345°. Furthermore, when another second bend unit 200 is installed on the previous second bend unit 200, the included angle between the bend units remains unchanged, but the overall angle will continuously increase.

[0033] like Figures 1 to 3 As shown, the pipe bending unit includes a first pipe bending unit 100 and a second pipe bending unit 200. One end of the first pipe bending unit 100 has a connecting flange 120 for connecting to an external pipe. The other end of the first pipe bending unit 100 has a first inclined connecting surface 110. The second pipe bending unit 200 is connected to the first inclined connecting surface 110 of the first pipe bending unit 100.

[0034] Specifically, by providing a connecting flange 120 at the end of the first bend unit 100, the bend structure can be easily connected to other external pipes after being bent at a certain angle.

[0035] like Figure 4 As shown, the second bending unit 200 has a second inclined connecting surface 210 and a third inclined connecting surface 220 at both ends, respectively. The second inclined connecting surface 210 and the third inclined connecting surface 220 are not parallel. By providing the second inclined connecting surface 210 and the third inclined connecting surface 220 on the second bending unit 200, it can connect with the first inclined connecting surface 110 on the first bending unit 100, and it can also connect with the second inclined connecting surface 210 or the third inclined connecting surface 220 of other second bending units 200. In addition, the second inclined connecting surface 210 and the third inclined connecting surface 220 on the second bending unit 200 are not parallel, which avoids the situation of vertical angle or no bending when it connects with the inclined connecting surface of the first bending unit 100 or the second bending unit 200, and at the same time facilitates the docking between bending units.

[0036] In this embodiment, the inclination angles of the first inclined connecting surface 110, the second inclined connecting surface 210, and the third inclined connecting surface 220 are all 7.5°. By setting the inclination angles of the first inclined connecting surface 110, the second inclined connecting surface 210, and the third inclined connecting surface 220 to all be 7.5°, they can be bent to a specific bending angle through calculation.

[0037] Furthermore, combined Figure 5 As shown, a guide ring 300 is provided on the second bending unit 200. The guide ring 300 can move along the axial direction of the second bending unit 200. A limit bolt 310 is threadedly connected to the guide ring 300. The limit bolt 310 contacts the surface of the first bending unit 100 or other second bending unit 200 and is parallel to its axial direction.

[0038] When connecting the first bend unit 100 and the second bend unit 200, a guide ring 300 is fitted onto the second bend unit 200. When the guide ring 300 moves to a position between the second bend unit 200 and the first bend unit 100, the included angle prevents the guide ring 300 from moving. At this point, the limiting bolt 310 is rotated, causing it to move against the surface of the first bend unit 100, thereby positioning the second bend unit 200. This is done in conjunction with external hoisting equipment to facilitate the connection between the first bend unit 100 and the second bend unit 200. In this embodiment, the first bend unit 100 and the second bend unit 200 are fixed by welding. Similarly, when connecting the second bend unit 200 and the second bend unit 200, the same method can be used to position the second bend unit 200.

[0039] It should be noted that the inner diameter of the guide ring 300 is adapted to the outer diameter of the second bend unit 200 and the first bend unit 100, so that the guide ring 300 can move along the second bend unit 200 and the first bend unit 100 without deviation, further ensuring that the limit bolt 310 can perform the positioning function.

[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium. Those skilled in the art will understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] The above specific embodiments are merely one or more preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A combined pipe bending structure, characterized in that, It includes at least two pipe bending units, each of which has at least one inclined connecting surface, and the pipe bending units are connected sequentially through the inclined connecting surfaces to form a pipe bending structure. The pipe bending unit includes a first pipe bending unit and a second pipe bending unit, wherein one end of the first pipe bending unit has a connecting flange for connecting to an external pipe, and the other end of the first pipe bending unit has a first inclined connecting surface, and the second pipe bending unit is connected to the first inclined connecting surface of the first pipe bending unit. The second bending unit is provided with a guide ring, which can move along the axial direction of the second bending unit. A limit bolt is threadedly connected to the guide ring, and the limit bolt contacts the surface of the first bending unit or other second bending units and is parallel to their axial direction.

2. The bent pipe structure according to claim 1, characterized in that, The second bend unit has a second inclined connecting surface and a third inclined connecting surface at both ends, and the second inclined connecting surface and the third inclined connecting surface are not parallel.

3. The bent pipe structure according to claim 1, characterized in that, The size of the inclined connection surface of the pipe bending unit is adapted.

4. The bent pipe structure according to claim 1, characterized in that, The inclined angles of the inclined connecting surfaces of the pipe bending units are the same.

5. The bent pipe structure according to claim 1, characterized in that, The formula for calculating the included angle between the two bent pipe units formed by the inclined connecting surface is as follows: 360°-（2*α）； Where α is the inclination angle of the inclined connecting surface.

6. The bent pipe structure according to claim 2, characterized in that, The inclination angles of the first inclined connecting surface, the second inclined connecting surface, and the third inclined connecting surface are all 7.5°.

7. The bent pipe structure according to claim 1, characterized in that, The first bend unit and the second bend unit are fixed by welding.

Images