Pipe bender

Abstract

The utility model discloses a pipe bender. The pipe bender comprises a base, a mounting seat, a clamping assembly and a bending assembly. The mounting base is connected to the base in a reciprocating motion mode in the first direction. The clamping assembly is rotatably connected to the mounting base around a first axis parallel to the first direction, and the clamping assembly is used for clamping a pipe so that the central axis of the pipe can coincide with the first axis; the bending assembly is arranged on the base and located on the side, in the first direction, of the mounting base, and the bending assembly is used for bending the pipe clamped by the clamping assembly. When the pipe is continuously bent, the bending position of the pipe can be adjusted by moving the mounting base, and the bending angle of the pipe can be adjusted by rotating the clamping assembly. Compared with the mode that the position of the pipe is adjusted by holding the pipe manually, the pipe bender can prevent the pipe from shaking when the position of the pipe is adjusted, so that the adjusting precision of the position of the pipe is higher, and the bending precision of the pipe is improved.

Description

Technical Field

[0001] This application belongs to the field of pipe bending technology, specifically relating to a pipe bender. Background Technology

[0002] A split-type Stirling refrigerator, a type of regenerative refrigerator, consists of a compressor and an expander. A separate pipe is used between the compressor and expander for gaseous fluid transfer, reducing the mechanical complexity of the refrigerator and minimizing piston wear. However, compared to a rotary Stirling refrigerator, the split-type Stirling refrigerator lacks structural compactness due to the presence of the separate pipe. Therefore, the separate pipe needs to be bent before being arranged to improve structural compactness.

[0003] Bending the branch pipe requires a pipe bender, but the branch pipe may require continuous bending and precise bending, meaning bending needs to be done at multiple points. Existing pipe benders are usually fixed in place, requiring the operator to hold the branch pipe and adjust its position, which is prone to vibration and results in low bending accuracy. Utility Model Content

[0004] The technical problem to be solved by this application is that the existing split pipe bending accuracy is low. In order to solve this technical problem, a pipe bender with higher bending accuracy is provided.

[0005] The technical solution proposed in this application is as follows:

[0006] A pipe bender, comprising:

[0007] Base;

[0008] The mounting base is reciprocally connected to the base in a first direction;

[0009] A clamping assembly is rotatably connected to the mounting base about a first axis parallel to the first direction, and the clamping assembly is used to clamp the pipe so that the central axis of the pipe coincides with the first axis;

[0010] A bending assembly is disposed on the base and located on one side of the mounting seat along the first direction. The bending assembly is used to bend the pipe held by the clamping assembly.

[0011] Using the aforementioned pipe bender, the pipe is clamped in the clamping assembly, with one end of the pipe extending into the bending assembly. The bending assembly then bends the pipe. Simultaneously, during continuous bending, the bending position of the pipe can be adjusted by moving the mounting base, and the bending angle can be adjusted by rotating the clamping assembly. Compared to manually adjusting the pipe's position by hand, this pipe bender avoids pipe vibration during adjustment, resulting in higher accuracy in pipe positioning and thus improving bending precision.

[0012] Furthermore, the pipe bender also includes a first fastener connected to the mounting base or the base, and the first fastener is capable of securing and releasing the mounting base.

[0013] Furthermore, the pipe bender also includes a second fastener connected to the mounting base, and the second fastener is capable of securing and releasing the clamping assembly.

[0014] Furthermore, the clamping assembly includes a connecting tube and a clamping module. The connecting tube is rotatably connected to the mounting base about the first axis and extends along the first direction. The clamping module is connected to one end of the connecting tube and is used to clamp the pipe material passing through the connecting tube.

[0015] Furthermore, the clamping module includes a connecting sleeve and a clamping component, and one end of the connecting tube is provided with a wedge-shaped surface;

[0016] The connecting sleeve is reciprocally connected to the connecting tube along the first direction, the clamping member is connected to the connecting sleeve, and the clamping member has a clamping channel extending through it along the first direction.

[0017] As the clamping member moves relative to the connecting tube with the connecting sleeve, the clamping member can extend into the interior of the connecting tube and slide on the wedge-shaped surface to adjust the diameter of the clamping channel.

[0018] Furthermore, the clamping member includes a plurality of clamping blocks, which are evenly spaced along a circumferential direction perpendicular to the first axis to form the clamping channel in the middle of the plurality of clamping blocks;

[0019] Each of the clamps has a first end and a second end opposite to each other in the first direction, and each of the clamps is connected to two adjacent clamps, with the first end connected to the first end of one of the adjacent clamps and the second end connected to the second end of the other clamp.

[0020] Furthermore, the bending assembly includes a fixed sleeve, a connecting block, and a movable sleeve. The fixed sleeve and the connecting block are both disposed on the base, and the movable sleeve is disposed on the connecting block. The movable sleeve and the fixed sleeve together form a bending channel for the pipe to pass through.

[0021] The connecting block can rotate about a second axis perpendicular to the first axis, so as to drive the movable sleeve to rotate around the fixed sleeve and bend the pipe.

[0022] Furthermore, the fixed sleeve is rotatable about the second axis, the movable sleeve is rotatable about a third axis parallel to the second axis, and the central axis of the fixed sleeve coincides with the second axis, while the central axis of the movable sleeve coincides with the third axis.

[0023] Furthermore, the bending assembly also includes an extension rod connected to the connecting block.

[0024] Furthermore, the base is provided with distance scales along the first direction;

[0025] The mounting base is provided with an angle plate, which is used to calculate the rotation angle of the clamping assembly.

[0026] In summary, the pipe bender provided in this application has at least the following advantages:

[0027] 1. The mounting base can be adjusted relative to the base along the first direction, and the clamping component can rotate, thereby enabling adjustment of the bending position and bending angle of the pipe and ensuring bending accuracy.

[0028] 2. The diameter of the clamping channel of the clamping component is adjustable to accommodate pipes of different sizes;

[0029] 3. The mounting base and clamping assembly are fixed and released by the first fastener and the second fastener, respectively, which can prevent the mounting base from moving or the pipe from rotating during bending, thus improving bending accuracy. Attached Figure Description

[0030] The accompanying drawings are provided to further understand this application and form part of the specification. They are used together with the embodiments of this application to explain this application and do not constitute a limitation thereof.

[0031] Figure 1 This is a schematic diagram of the structure of a pipe bender provided in one embodiment of this application;

[0032] Figure 2 for Figure 1 The diagram shows a top view of the pipe bender.

[0033] Figure 3 for Figure 2 A schematic cross-sectional view of section AA in the pipe bender shown;

[0034] Figure 4 for Figure 3 A schematic diagram of the clamping components in the pipe bender shown;

[0035] Figure 5 for Figure 2 The diagram shows a cross-sectional view of section BB in the pipe bender.

[0036] Label Explanation:

[0037] 100. Pipe bender; 200. Pipe; 110. Base; 120. Mounting base; 130. Clamping assembly; 131. Connecting pipe; 1311. Wedge-shaped surface; 132. Connecting sleeve; 133. Clamping element; 1331. Clamping channel; 1332. Clamping block; D1. First end; D2. Second end; 140. Bending assembly; 141. Fixed sleeve; 142. Connecting block; 143. Movable sleeve; 144. Bending channel; 145. Fixed shaft; 146. Movable shaft; 147. Limiting block; 148. Fixing element; 149. Extension rod; 150. Angle plate; 160. First fastener; 170. Second fastener. Detailed Implementation

[0038] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0039] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the equipment 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 application.

[0040] like Figure 1 and Figure 2 As shown, this application provides a pipe bender 100, including a base 110, a mounting base 120, a clamping assembly 130, and a bending assembly 140. The mounting base 120 is reciprocally movably connected to the base 110 along a first direction.

[0041] The clamping assembly 130 is rotatably connected to the mounting base 120 about a first axis parallel to the first direction. The clamping assembly 130 is used to clamp the pipe 200 so that the central axis of the pipe 200 coincides with the first axis, thereby rotating the clamping assembly 130 to drive the pipe 200 on the clamping assembly 130 to rotate. The bending assembly 140 is disposed on the base 110 and located on one side of the mounting base 120 along the first direction. The bending assembly 140 is used to bend the pipe 200 clamped by the clamping assembly 130.

[0042] Using the aforementioned pipe bender 100, the pipe 200 is clamped in the clamping assembly 130, with one end of the pipe 200 extending into the bending assembly 140, through which the pipe 200 can be bent. Simultaneously, during continuous bending of the pipe 200, the bending position of the pipe 200 can be adjusted by moving the mounting base 120, and the bending angle of the pipe 200 can be adjusted by rotating the clamping assembly 130. Compared to manually adjusting the position of the pipe 200 by hand, this pipe bender 100 can prevent the pipe 200 from shaking during position adjustment, thereby achieving higher adjustment accuracy and improving the bending precision of the pipe 200.

[0043] It is understandable that there must be a certain amount of damping between the mounting base 120 and the base 110, as well as between the clamping assembly 130 and the mounting base 120, to prevent offset during movement or rotation, thereby ensuring high movement and rotation accuracy.

[0044] In one embodiment, the base 110 has a distance scale along a first direction, allowing the mounting base 120 to be moved according to the distance scale, thereby improving movement accuracy. Further, the mounting base 120 is provided with an angle plate 150, which is used to calculate the rotation angle of the clamping assembly 130. Specifically... Figure 1 In the embodiment shown, the angle plate 150 is provided with an angle scale, so that the clamping assembly 130 can be rotated according to the angle scale, thereby improving the rotation accuracy.

[0045] In one embodiment, the pipe bender 100 further includes a first fastener 160, which is connected to the mounting base 120 or the base 110. The first fastener 160 can fix and release the mounting base 120. Thus, after the mounting base 120 is moved to a preset position, the first fastener 160 can fix the mounting base 120 relative to the base 110, preventing the mounting base 120 from moving during bending. When it is necessary to adjust the position of the pipe 200, the mounting base 120 can be released and then the mounting base 120 can be moved back and forth along a first direction.

[0046] In practical applications, the first fastener 160 is threadedly connected to the mounting base 120, and during the tightening of the first fastener 160, the first fastener 160 can abut against the base 110, thereby fixing and releasing the mounting base 120. Figure 1 In the embodiment shown, the base 110 is provided with a slide rail, and the mounting base 120 is slidably mounted on the base 110. Figure 1The mounting base 120 is located outside the slide rail, so the first fastener 160 is connected to the mounting base 120. In other embodiments, the slide rail is located outside the mounting base 120, or the first fastener 160 is threaded to the base 110, and during the tightening of the first fastener 160, the first fastener 160 can abut against the mounting base 120, which can also achieve fixing and releasing of the mounting base 120.

[0047] Please also refer to Figure 3 In one embodiment, the pipe bender 100 further includes a second fastener 170, which is connected to the mounting base 120 and can fix and release the clamping assembly 130. Similarly, after the clamping assembly 130 rotates to a preset angle, the second fastener 170 fixes the clamping assembly 130 to prevent it from rotating during bending; when it is necessary to adjust the angle of the pipe 200, the clamping assembly 130 can be released and then rotated.

[0048] In practical applications, the mounting base 120 has a through mounting hole along the first direction, and the clamping assembly 130 is rotatably disposed in the mounting hole; the second fastener 170 is threadedly connected to the mounting base 120, and one end of the second fastener 170 can extend into the mounting hole and abut against the clamping assembly 130, so as to fix and release the clamping assembly 130 during the tightening process.

[0049] Please see Figure 3 and Figure 4 In one embodiment, the clamping assembly 130 includes a connecting pipe 131 and a clamping module. The connecting pipe 131 is rotatably connected to the mounting base 120 about a first axis and extends along a first direction for the pipe 200 to pass through. The clamping module is connected to one end of the connecting pipe 131 and is used to clamp the pipe 200 passing through the connecting pipe 131. Specifically... Figure 3 In the embodiment shown, the mounting hole is a stepped hole, and a bearing is provided at the position with a larger diameter in the mounting hole. One end of the connecting pipe 131 is connected to the bearing, and the other end passes through the position with a smaller diameter in the mounting hole and extends out. The clamping module is connected to the end of the connecting pipe 131 away from the bearing.

[0050] Furthermore, a wedge-shaped surface 1311 is provided at the end of the connecting pipe 131 away from the bearing. The clamping module includes a connecting sleeve 132 and a clamping member 133. The connecting sleeve 132 is reciprocally connected to the connecting pipe 131 along a first direction. The clamping member 133 is connected to the connecting sleeve 132, and the clamping member 133 has a clamping channel 1331 for clamping the pipe 200 through it along the first direction. The diameter of the clamping channel 1331 is adjustable, thereby realizing the clamping and release of the pipe 200; it can also be used to clamp pipes 200 of different sizes.

[0051] During the movement of the clamping member 133 relative to the connecting tube 131 with the connecting sleeve 132, i.e., during the movement of the clamping member 133 relative to the connecting tube 131 along the first direction, the clamping member 133 can extend into the interior of the connecting tube 131 and slide on the wedge-shaped surface 1311 to adjust the diameter of the clamping channel 1331. Optionally, the connecting sleeve 132 is threadedly connected to the connecting tube 131 to reciprocate along the first direction during rotation.

[0052] Specifically Figure 4 In the illustrated embodiment, the clamping member 133 includes a plurality of clamping blocks 1332, which are evenly spaced along a circumferential direction perpendicular to the first axis to form the clamping channel 1331 described above. Each clamping block 1332 has a first end D1 and a second end D2 opposite each other in a first direction. Each clamping block 1332 is connected to two adjacent clamping blocks 1332, and the first end D1 of the clamping block 1332 is connected to the first end D1 of one of the adjacent clamping blocks 1332, and the second end D2 is connected to the second end D2 of the other clamping block 1332, so that the plurality of clamping blocks 1332 can be contracted and expanded, thereby making the diameter of the clamping channel 1331 adjustable.

[0053] Please see Figure 3 and Figure 5 In one embodiment, the bending assembly 140 includes a fixed sleeve 141, a connecting block 142, and a movable sleeve 143. The fixed sleeve 141 and the connecting block 142 are both disposed on the base 110, and the movable sleeve 143 is disposed on the connecting block 142. The movable sleeve 143 and the fixed sleeve 141 enclose each other to form a bending channel 144 through which the pipe 200 passes.

[0054] The connecting block 142 can rotate around a second axis perpendicular to the first axis, so as to drive the movable sleeve 143 to rotate around the fixed sleeve 141 and bend the pipe 200.

[0055] In practical applications, both the fixed sleeve 141 and the movable sleeve 143 have grooves on their outer sides, and the grooves of the two correspond to each other, thereby forming a bent channel 144 through which the pipe 200 passes.

[0056] In one embodiment, the fixed sleeve 141 is rotatable about a second axis, and the movable sleeve 143 is rotatable about a third axis parallel to the second axis. The central axis of the fixed sleeve 141 coincides with the second axis, and the central axis of the movable sleeve 143 coincides with the third axis. That is, the fixed sleeve 141 and the movable sleeve 143 are parallel to each other and can both rotate, thereby making the bending of the pipe 200 smoother.

[0057] In one embodiment, the bending assembly 140 further includes a fixed shaft 145 and a movable shaft 146. The fixed shaft 145 is fixedly connected to the base 110, and the fixed sleeve 141 and the connecting block 142 are rotatably connected to the fixed shaft 145 about a first axis. The movable shaft 146 is fixedly connected to the connecting block 142, and the movable sleeve 143 is rotatably connected to the movable shaft 146 about a second axis. Further, the bending assembly 140 also includes a limiting block 147, which is fixedly connected to the fixed shaft 145 and is used to limit the rotation of the movable sleeve 143.

[0058] In one embodiment, the bending assembly 140 further includes a fixing member 148, the two ends of which are hinged to the top ends of the fixed shaft 145 and the movable shaft 146, respectively, to improve the stability of the fixed shaft 145 and the movable shaft 146, prevent positional deviation between them, and thus improve bending accuracy. Simultaneously, the fixing member 148 can be detached from the fixed shaft 145 and the movable shaft 146, thereby facilitating the replacement of the fixed sleeve 141 and the movable sleeve 143.

[0059] Specifically Figure 5 In the embodiment shown, the fixed sleeve 141 and the movable sleeve 143 form two bending channels 144 of different sizes. By removing the fixing member 148, the fixed sleeve 141 and the movable sleeve 143 can be flipped over to replace the bending channels 144, so as to be suitable for bending pipes 200 of different sizes.

[0060] In one embodiment, the bending assembly 140 further includes an extension rod 149 connected to the connecting block 142, so that bending the pipe 200 is more effortless.

[0061] To facilitate understanding of the technical solution of this application, this document combines... Figure 1 The working process of the pipe bender 100 in the above embodiments will be described as follows:

[0062] Initially, the mounting base 120 is located on the base 110 at the end away from the bending component 140, and the first fastener 160 and the second fastener 170 respectively fix the mounting base 120 and the clamping component 130. The movable sleeve 143 abuts against the limiting block 147.

[0063] Pipe 200 is passed through connecting pipe 131 and clamping channel 1331, so that one end of pipe 200 passes through bending channel 144. Then, connecting sleeve 132 is turned so that clamping member 133 clamps pipe 200. Next, the movable sleeve 143 is rotated by extension rod 149 to bend pipe 200. After the first bend is completed, the movable sleeve 143 is rotated back to the position abutting against limit block 147; the first fastener 160 is loosened, and mounting base 120 is pushed toward bending assembly 140 by a preset distance, and then the first fastener 160 is tightened to fix mounting base 120. If the bending angle needs to be adjusted, the second fastener 170 can be loosened, the clamping assembly 130 can be rotated to a preset angle, and then the second fastener 170 can be tightened to fix clamping assembly 130. After the position (position and angle) adjustment is completed, the above steps are repeated to rotate movable sleeve 143.

[0064] In summary, the pipe bender 100 provided in this application has at least the following advantages:

[0065] 1. The mounting base 120 can be adjusted in position relative to the base 110 in the first direction, and the clamping assembly 130 can rotate, thereby enabling adjustment of the bending position and bending angle of the pipe 200 and ensuring bending accuracy.

[0066] 2. The diameter of the clamping channel 1331 of the clamping member 133 is adjustable to accommodate clamping pipes 200 of different sizes;

[0067] 3. The mounting base 120 and the clamping assembly 130 are fixed and released by the first fastener 160 and the second fastener 170, respectively, which can prevent the mounting base 120 from moving or the pipe 200 from rotating during bending, thereby improving bending accuracy.

[0068] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pipe bender, characterized in that, include: Base; The mounting base is reciprocally connected to the base in a first direction; A clamping assembly is rotatably connected to the mounting base about a first axis parallel to the first direction, and the clamping assembly is used to clamp the pipe so that the central axis of the pipe coincides with the first axis; A bending assembly is disposed on the base and located on one side of the mounting seat along the first direction. The bending assembly is used to bend the pipe held by the clamping assembly.

2. The pipe bender according to claim 1, characterized in that, It also includes a first fastener, which is connected to the mounting base or the base and is capable of securing and releasing the mounting base.

3. The pipe bender according to claim 1, characterized in that, It also includes a second fastener, which is connected to the mounting base and is capable of securing and releasing the clamping assembly.

4. The pipe bender according to claim 1, characterized in that, The clamping assembly includes a connecting pipe and a clamping module. The connecting pipe is rotatably connected to the mounting base about the first axis and extends along the first direction. The clamping module is connected to one end of the connecting pipe and is used to clamp the pipe material passing through the connecting pipe.

5. The pipe bender according to claim 4, characterized in that, The clamping module includes a connecting sleeve and a clamping component, and a wedge-shaped surface is provided at one end of the inner side of the connecting tube; The connecting sleeve is reciprocally connected to the connecting tube along the first direction, the clamping member is connected to the connecting sleeve, and the clamping member has a clamping channel extending through it along the first direction. As the clamping member moves relative to the connecting tube with the connecting sleeve, the clamping member can extend into the interior of the connecting tube and slide on the wedge-shaped surface to adjust the diameter of the clamping channel.

6. The pipe bender according to claim 5, characterized in that, The clamping member includes a plurality of clamping blocks, which are evenly spaced along a circumferential direction perpendicular to the first axis to form the clamping channel in the middle of the plurality of clamping blocks. Each of the clamps has a first end and a second end opposite to each other in the first direction, and each of the clamps is connected to two adjacent clamps, with the first end connected to the first end of one of the adjacent clamps and the second end connected to the second end of the other clamp.

7. The pipe bender according to claim 1, characterized in that, The bending assembly includes a fixed sleeve, a connecting block, and a movable sleeve. The fixed sleeve and the connecting block are both disposed on the base, and the movable sleeve is disposed on the connecting block. The movable sleeve and the fixed sleeve together form a bending channel for the pipe to pass through. The connecting block can rotate about a second axis perpendicular to the first axis, so as to drive the movable sleeve to rotate around the fixed sleeve and bend the pipe.

8. The pipe bender according to claim 7, characterized in that, The fixed sleeve is rotatable about the second axis, and the movable sleeve is rotatable about a third axis parallel to the second axis. The central axis of the fixed sleeve coincides with the second axis, and the central axis of the movable sleeve coincides with the third axis.

9. The pipe bender according to claim 7, characterized in that, The bending assembly also includes an extension rod connected to the connecting block.

10. The pipe bender according to claim 1, characterized in that, The base is provided with distance scales along the first direction; The mounting base is provided with an angle plate, which is used to calculate the rotation angle of the clamping assembly.

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