Air conditioner heat exchange special-shaped pipe welding device

Abstract

The utility model discloses an air conditioner heat exchange special-shaped pipe welding device which comprises a supporting seat, a plurality of bases are arranged on the supporting seat, and a first positioning assembly, a second positioning assembly and a third positioning assembly which can be matched with one another to clamp an air conditioner heat exchange special-shaped pipe are connected to each base at intervals in the front-back direction. The air conditioner heat exchange special-shaped pipe comprises a first connecting pipe, a three-way connecting pipe and a second connecting pipe, the third positioning assembly comprises a third support and a fourth support which are arranged in a front-back spaced mode, positioning protrusions are arranged on the fourth support, and a clamping set for clamping the three-way connecting pipe is arranged between the third support and the fourth support. The third support is further provided with an abutting part which can be used for abutting the three-way connecting pipe to limit the three-way connecting pipe from inclining relative to the first connecting pipe, and when the first connecting pipe is installed on the three-way connecting pipe, the first positioning assembly and the second positioning assembly can position and clamp the first connecting pipe. The utility model provides an air conditioner heat exchange special-shaped pipe welding device which is convenient to assemble and capable of improving machining efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe fitting processing, in particular to a welding device for an air-conditioning heat exchange special-shaped pipe. Background Art

[0002] The existing air-conditioning heat exchange special-shaped pipe includes a first connecting pipe, a tee connecting pipe and a second connecting pipe which are connected to each other. When the first connecting pipe is connected to the tee connecting pipe, it is inclined. Therefore, workers need to first assemble the first connecting pipe and the tee connecting pipe and adjust the inclination angle. This processing method results in low processing efficiency. Moreover, if there are errors in the assembly of the first connecting pipe and the tee connecting pipe, they are defective products after welding, which is likely to cause waste.

[0003] The present utility model is precisely produced based on the above deficiencies. Summary of the Utility Model

[0004] The purpose of the present utility model is to overcome the problems of the prior art and provide a welding device for an air-conditioning heat exchange special-shaped pipe that is convenient for assembly and can improve processing efficiency.

[0005] In order to achieve the above purpose, the present utility model adopts the following scheme:

[0006] A welding device for an air-conditioning heat exchange special-shaped pipe includes a support base. A plurality of bases are arranged on the support base. A first positioning component, a second positioning component and a third positioning component that can cooperate with each other to clamp the air-conditioning heat exchange special-shaped pipe are connected to the bases at intervals in the front and rear directions. The air-conditioning heat exchange special-shaped pipe includes a first connecting pipe with an arc-shaped bend and a tee connecting pipe connected to the first connecting pipe. A second connecting pipe is connected to the upper end of the tee connecting pipe. The third positioning component includes a third bracket and a fourth bracket arranged at intervals in the front and rear directions. A positioning protrusion for the end of the tee connecting pipe far from the first connecting pipe to be inserted is provided on the fourth bracket. A clamping group for clamping the tee connecting pipe is arranged between the third bracket and the fourth bracket. A top-relying component for the tee connecting pipe to lean against to limit the inclination of the tee connecting pipe relative to the first connecting pipe is further provided on the third bracket. And when the first connecting pipe is installed to the tee connecting pipe, the first positioning component and the second positioning component can position and clamp the first connecting pipe.

[0007] A slide rail is further arranged on the top surface of the fourth bracket. A sliding seat capable of sliding along the slide rail is arranged on the slide rail. The positioning protrusion is arranged on one side of the sliding seat. A first driving component capable of being connected to the sliding seat to drive the sliding seat to slide along the slide rail is further provided on the fourth bracket.

[0008] The clamping group includes a first notch provided on the third bracket. On the front side of the third bracket, there are a first sliding block, a second sliding block, and a third sliding block that can slide relative to it to clamp the tee joint connecting pipe. The clamping group further includes a second driving component provided on the sliding seat. There is a first connecting block between the second driving component and the sliding seat that can rotate relative to both of them. The sliding seat is also provided with a first clamping seat that can rotate relative to it. There is a first rotating block between the first clamping seat and the output shaft A of the second driving component that can rotate relative to both of them.

[0009] The first clamping seat is provided with a positioning card slot into which the upper part of the tee joint connecting pipe can be inserted.

[0010] The abutting component includes a top block connected to the third bracket and extending horizontally relative to the third bracket. The top block is provided with an abutting surface against which the tee joint connecting pipe can abut.

[0011] The second positioning component includes a second bracket. A first support frame that can contact and abut against the top surface of the first connecting pipe is connected to the second bracket. A driving motor is provided on the second bracket. A second support frame that can cooperate with the first support frame to clamp the first connecting pipe by sliding up and down following the output shaft B is connected to the output shaft B of the driving motor. A guiding component that can guide the sliding of the second support frame is provided between the second support frame and the second bracket.

[0012] The first support frame has two first clamping blocks arranged at intervals left and right. The first clamping blocks are provided with first clamping arc surfaces. The second support frame includes a second connecting block connected to the output shaft B. Second clamping blocks are connected to the left and right sides of the second connecting block. The second clamping blocks are provided with second clamping arc surfaces, and the first clamping blocks and the second clamping blocks on the same side are arranged at intervals front and back.

[0013] The first positioning component includes a first bracket connected to the base. The first bracket is provided with a second notch into which the first connecting pipe can be inserted. On the front side of the first bracket, there are a fourth sliding block, a fifth sliding block, and a sixth sliding block that can slide relative to it to clamp the first connecting pipe.

[0014] The support base includes a seat body. A table board that can rotate relative to it is connected to the seat body. A plurality of the bases are arranged on the top surface of the table board and spaced apart around the circumference of the table board.

[0015] Each of the bases is detachably connected to the support base, and the first positioning component, the second positioning component, and the third positioning component are movably connected to the base.

[0016] Compared with the existing technology, the utility model has the following advantages: When using the welding device for the special-shaped pipe of the air-conditioning heat exchanger of the utility model, the user clamps one end of the pipe orifice of the tee joint connecting pipe into the positioning protrusion, and then rotates the tee joint connecting pipe so that the protruding pipe in the tee joint connecting pipe contacts the abutting component. The third positioning component is started to clamp the tee joint connecting pipe, and then the second connecting pipe is connected to the upper end of the tee joint connecting pipe. Finally, a part of the first connecting pipe is placed on the first positioning component and the second positioning component, and the first connecting pipe is pulled horizontally and inserted into the tee joint connecting pipe. Then, the first positioning component and the second positioning component are operated to fix the first connecting pipe. The user can then perform welding operations on the connection between the first connecting pipe and the tee joint connecting pipe and the connection between the second connecting pipe and the tee joint connecting pipe. Moreover, the first positioning component, the second positioning component and the third positioning component are arranged on multiple bases. Therefore, the user can simultaneously position and install multiple special-shaped pipes for air-conditioning heat exchangers, with higher efficiency, and can complete the adjustment of the angles of the tee joint connecting pipes at the same time, making the installation more convenient, more accurate, and improving the yield rate. Brief Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of the welding device for the special-shaped pipe of the air-conditioning heat exchanger of the utility model;

[0018] Figure 2 is a top view of the welding device for the special-shaped pipe of the air-conditioning heat exchanger of the utility model;

[0019] Figure 3 is one of the perspective views of the welding device for the special-shaped pipe of the air-conditioning heat exchanger of the utility model;

[0020] Figure 4 is the other perspective view of the welding device for the special-shaped pipe of the air-conditioning heat exchanger of the utility model;

[0021] Figure 5 is a perspective view of the first positioning component of the welding device for the special-shaped pipe of the air-conditioning heat exchanger of the utility model;

[0022] Figure 6 is a perspective view of the second positioning component of the welding device for the special-shaped pipe of the air-conditioning heat exchanger of the utility model;

[0023] Figure 7 is one of the perspective views of the third positioning component of the welding device for the special-shaped pipe of the air-conditioning heat exchanger of the utility model;

[0024] Figure 8 is the other perspective view of the third positioning component of the welding device for the special-shaped pipe of the air-conditioning heat exchanger of the utility model;

[0025] Figure 9 is an exploded view of the third positioning component of the welding device for the special-shaped pipe of the air-conditioning heat exchanger of the utility model;

[0026] Figure 10Stereogram of the support base of the welding device for the special-shaped tube of the utility model air conditioner heat exchanger.

[0027] Reference numerals: support base 1, seat body 11, table board 12; base 2; first positioning assembly 3, first bracket 31, second notch 311, fourth sliding block 312, fifth sliding block 313, sixth sliding block 314; second positioning assembly 4, second bracket 41, first support frame 411, first clamping block 4111, first clamping arc surface 4112, drive motor 412, output shaft B, second support frame 413, second connecting block 4131, second clamping block 4132, second clamping arc surface 4133; third positioning assembly 5, third bracket 51, fourth bracket 52, positioning protrusion 52a, slide rail 521, sliding seat 522, first driving component 523, clamping group 53, first notch 531, first sliding block 532, second sliding block 533, third sliding block 534, second driving component 535, output shaft A, first connecting block 536, first clamping seat 537, positioning card slot 5371, first rotating block 538, abutting component 54, top block 541, abutting surface 542; welding station 100, loading station 101, heat special-shaped tube 103, first connecting tube 1031, tee connecting tube 1032, second connecting tube 1033. Detailed implementation manners

[0028] The following further describes the present utility model in detail with reference to embodiments:

[0029] The following further describes in detail the specific implementation manners of the present utility model with reference to the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0030] As Figures 1 to 10As shown in the figure, an air conditioner heat exchange special-shaped pipe welding device includes a support base 1. A plurality of bases 2 are arranged on the support base 1. A first positioning component 3, a second positioning component 4 and a third positioning component 5 which can cooperate with each other to clamp the air conditioner heat exchange special-shaped pipe 103 are connected at intervals in the front and rear directions on each of the bases 2. The air conditioner heat exchange special-shaped pipe 103 includes a first connecting pipe 1031 with an arc-shaped bend and a tee connecting pipe 1032 connected to the first connecting pipe 1031. The upper end of the tee connecting pipe 1032 is connected with a second connecting pipe 1033. The third positioning component 5 includes a third bracket 51 and a fourth bracket 52 arranged at intervals in the front and rear directions. A positioning protrusion 52a for the end of the tee connecting pipe 1032 far from the first connecting pipe 1031 to be inserted into is provided on the fourth bracket 52. A clamping group 53 for clamping the tee connecting pipe 1032 is arranged between the third bracket 51 and the fourth bracket 52. A top-leaning component 54 for the tee connecting pipe 1032 to lean against to limit the tee connecting pipe 1032 from tilting relative to the first connecting pipe 1031 is also provided on the third bracket 51. When the first connecting pipe 1031 is installed to the tee connecting pipe 1032, the first positioning component 3 and the second positioning component 4 can position and clamp the first connecting pipe 1031.

[0031] When using the air conditioner heat exchange special-shaped pipe welding device of the present utility model, the user inserts one end of the pipe orifice of the tee connecting pipe 1032 into the positioning protrusion 52a, and then rotates the tee connecting pipe 1032 to make the protruding pipe in the tee connecting pipe 1032 contact with the top-leaning component 54. Start the third positioning component 5 to clamp the tee connecting pipe 1032, then connect the second connecting pipe 1033 to the upper end of the tee connecting pipe 1032. Finally, place a part of the first connecting pipe 1031 on the first positioning component 3 and the second positioning component 4, horizontally pull the first connecting pipe 1031, insert the first connecting pipe 1031 into the tee connecting pipe 1032, and then operate the first positioning component 3 and the second positioning component 4 to position the first connecting pipe 1031. The user can then perform welding operations on the connection between the first connecting pipe 1031 and the tee connecting pipe 1032 and the connection between the second connecting pipe 1033 and the tee connecting pipe 1032. Moreover, the first positioning component 3, the second positioning component 4 and the third positioning component 5 are arranged on multiple bases 2. Therefore, the user can simultaneously position and install multiple air conditioner heat exchange special-shaped pipes 103, with higher efficiency, and can complete the adjustment of the angle of the tee connecting pipe 1032 at the same time, making the installation more convenient, more accurate, and improving the qualified product rate.

[0032] As Figures 7 to 8As shown, a slide rail 521 is further provided on the top surface of the fourth bracket 52. A sliding seat 522 capable of sliding along the slide rail 521 is provided on the slide rail 521. The positioning protrusion 52a is arranged on one side of the sliding seat 522. A first driving member 523 capable of being connected to the sliding seat 522 and further driving the sliding seat 522 to slide along the slide rail is further provided on the fourth bracket 52. The arrangement of the first driving member 523 can drive the sliding seat 522 to slide, adapt to three-way connecting pipes 1032 of different lengths, and has a wider application.

[0033] As Figures 7 to 8 shown, the clamping group 53 includes a first notch 531 provided on the third bracket 51. A first sliding block 532, a second sliding block 533 and a third sliding block 534 capable of sliding relative to the third bracket 51 to clamp the three-way connecting pipe 1032 are arranged on the front side of the third bracket 51. The clamping group 53 further includes a second driving member 535 provided on the sliding seat 522. A first connecting block 536 capable of rotating relative to both of them is arranged between the second driving member 535 and the sliding seat 522. A first clamping seat 537 capable of rotating relative to the sliding seat 522 is further provided on the sliding seat 522. A first rotating block 538 capable of rotating relative to both of them is arranged between the first clamping seat 537 and the output shaft A of the second driving member 535. When it is necessary to clamp the three-way connecting pipe 1032, first, one end of the three-way connecting pipe 1032 is snapped into the positioning protrusion 52a. At this time, a part of the three-way connecting pipe 1032 is placed in the first notch 531. The first sliding block 532, the second sliding block 533 and the third sliding block 534 are fixed to the third bracket 51 by screws. A clamping opening capable of clamping the three-way connecting pipe 1032 is formed between the first sliding block 532, the second sliding block 533 and the third sliding block 534. There is a gap between the clamping opening and the three-way connecting pipe 1032, which can allow the three-way connecting pipe 1032 to rotate inside. Then, the second driving member 535 is started. The output shaft A of the second driving member 535 moves forward. When the output shaft A moves, it drives the upper ends of the first connecting block 536 and the first rotating block 538 to rotate. The lower end of the first connecting block 536 rotates relative to the sliding seat 522, and the lower end of the first rotating block 538 rotates relative to the first clamping seat 537. As a result, the first clamping seat 537 rotates relative to the sliding seat 522, and the first clamping seat 537 cooperates with the first notch 531 to firmly clamp the three-way connecting pipe 1032.

[0034] As Figures 7 to 8 shown, a positioning card slot 5371 capable of allowing the upper part of the three-way connecting pipe 1032 to be snapped in is provided on the first clamping seat 537. The positioning card slot 5371 is convenient for positioning the upper side of the three-way connecting pipe 1032. The first notch 531 positions the left side, the right side and the lower side of the first notch 531, so that the three-way connecting pipe 1032 is clamped more firmly.

[0035] As shown Figures 7 to 8 As shown, the abutting member 54 includes a top block 541 connected to the third bracket 51 and extending laterally relative to the third bracket 51. The top block 541 is provided with an abutting surface 542 for the three-way connecting pipe 1032 to abut against. The abutting surface 542 is used to abut against the three-way connecting pipe 1032 so that the three-way connecting pipe 1032 is at a preset angle, facilitating the user to assemble the second connecting pipe 1033 and the first connecting pipe 1031.

[0036] As shown Figure 6 As shown, the second positioning assembly 4 includes a second bracket 41. A first support frame 411 capable of contacting and abutting against the top surface of the first connecting pipe 1031 is connected to the second bracket 41. A driving motor 412 is arranged on the second bracket 41. A second support frame 413 capable of sliding up and down along with the output shaft B and cooperating with the first support frame 411 to clamp the first connecting pipe 1031 is connected to the output shaft B of the driving motor 412. A guiding assembly capable of guiding the sliding of the second support frame 413 is arranged between the second support frame 413 and the second bracket 41. The guiding assembly is a combination of a convex block and a groove arranged between the second support frame 413 and the second bracket 41, which can not only fix but also be used to guide the sliding of the second support frame 413, making the sliding of the second support frame 413 smoother. When in use, the driving motor 412 is started, and the output shaft B extends upward, so that the second support frame 413 moves upward to clamp the upper and lower sides of the first connecting pipe 1031.

[0037] As shown Figure 6 As shown, the first support frame 411 has two first clamping blocks 4111 arranged at intervals left and right. The first clamping blocks 4111 are provided with first clamping arc surfaces 4112. The second support frame 413 includes a second connecting block 4131 connected to the output shaft B. Second clamping blocks 4132 are connected to the left and right sides of the second connecting block 4131. The second clamping blocks 4132 are provided with second clamping arc surfaces 4133, and the first clamping blocks 4111 and the second clamping blocks 4132 on the same side are arranged at intervals front and back, so that the first connecting pipe 1031 is clamped more firmly. The first clamping arc surfaces 4112 and the second clamping arc surfaces 4133 can adapt to first connecting pipes 1031 with different diameters, and the application range is wider.

[0038] As shown Figure 5As shown in the figure, the first positioning component 3 includes a first bracket 31 connected to the base 2. A second notch 311 capable of receiving the first connecting pipe 1031 is provided on the first bracket 31. A fourth sliding block 312, a fifth sliding block 313, and a sixth sliding block 314 are provided on the front side of the first bracket 31 and can slide relative to the first bracket 31 to clamp the first connecting pipe 1031. When it is necessary to position the front end of the first connecting pipe 1031, the front end of the first connecting pipe 1031 is placed on the second notch 311. The fourth sliding block 312, the fifth sliding block 313, and the sixth sliding block 314 are fixed to the first bracket 31 by screws. A clamping opening capable of positioning the first connecting pipe 1031 is formed between the fourth sliding block 312, the fifth sliding block 313, and the sixth sliding block 314, preventing the front end of the first connecting pipe 1031 from deforming due to suspension.

[0039] As Figure 10 shown in the figure, the support base 1 includes a base body 11. A table board 12 capable of rotating relative to the base body 11 is connected to the base body 11. A plurality of the bases 2 are arranged on the top surface of the table board 12 and are spaced apart around the circumference of the table board 12. As Figure 2 and Figure 10 shown in the figure, a rotating motor is provided between the table board 12 and the base body 11, and the table board 12 can rotate relative to the base body 11. In this way, fixed welding stations 100 and loading stations 101 can be set on the table board 12. At the loading station 101, the user installs and unloads the air-conditioning heat exchange special-shaped pipe 103. At the welding station 100, another user welds the air-conditioning heat exchange special-shaped pipe 103, realizing a flow operation and improving the processing efficiency of the air-conditioning heat exchange special-shaped pipe 103.

[0040] As Figure 1 shown in the figure, each of the bases 2 is detachably connected to the support base 1. The first positioning component 3, the second positioning component 4, and the third positioning component 5 are movably connected to the base 2, facilitating installation and replacement.

[0041] The above has generally described the present invention in detail. However, based on the present invention, some modifications or improvements can be made, which are obvious to those of ordinary skill in the technical field. Therefore, modifications or improvements made without departing from the spirit and idea of the present invention are within the protection scope of the present invention.

Claims

1. An air conditioning heat exchange special-shaped pipe welding device, characterized in that: The invention comprises a support base (1), wherein a plurality of bases (2) are arranged on the support base (1), and each of the bases (2) is connected to a first positioning assembly (3), a second positioning assembly (4) and a third positioning assembly (5) at intervals in front and back, and the first positioning assembly (3), a second positioning assembly (4) and a third positioning assembly (5) are capable of cooperating with each other to clamp an air-conditioning heat-exchanging special-shaped tube (103), wherein the air-conditioning heat-exchanging special-shaped tube (103) comprises a first connecting tube (1031) having an arc-shaped bend and a three-way connecting tube (1032) connected to the first connecting tube (1031), wherein the upper end of the three-way connecting tube (1032) is connected to the second connecting tube (1033), and wherein the third positioning assembly (5) comprises a third bracket (51) and a fourth bracket (52) arranged at intervals in front and back, wherein the fourth bracket (51) and the fourth bracket (52) are arranged at intervals in front and back, and wherein the fourth bracket (52) and the third positioning assembly (5) are connected to the air-conditioning heat-exchanging special-shaped tube (103) The bracket (52) is provided with a positioning protrusion (52a) capable of being inserted into the end of the three-way connecting pipe (1032) away from the first connecting pipe (1031); a clamping group (53) capable of clamping the three-way connecting pipe (1032) is provided between the third bracket (51) and the fourth bracket (52); the third bracket (51) is also provided with a supporting component (54) capable of being supported by the three-way connecting pipe (1032) to limit the three-way connecting pipe (1032) from tilting relative to the first connecting pipe (1031); and when the first connecting pipe (1031) is mounted on the three-way connecting pipe (1032), the first positioning component (3) and the second positioning component (4) are capable of positioning and clamping the first connecting pipe (1031).

2. The air conditioner heat exchange special-shaped pipe welding device according to claim 1, characterized in that: The top surface of the fourth bracket (52) is also provided with a slide rail (521), and the slide rail (521) is provided with a slide seat (522) that can slide along the slide rail. The positioning protrusion (52a) is provided on one side of the slide seat (522). The fourth bracket (52) is also provided with a first driving component (523) that can be connected with the slide seat (522) to drive the slide seat (522) to slide along the slide rail.

3. The air conditioner heat exchange special-shaped pipe welding device according to claim 2, characterized in that: The clamping group (53) includes a first notch (531) provided on the third bracket (51), and a first sliding block (532), a second sliding block (533) and a third sliding block (534) are provided on the front side of the third bracket (51) and can slide relative to the third bracket to clamp the three-way connecting pipe (1032). The clamping group (53) also includes a second driving component (535) provided on the sliding seat (522), and a first connecting block (536) that can rotate relative to the second driving component (535) and the sliding seat (522) is provided between the second driving component (535) and the sliding seat (522), and a first clamping seat (537) that can rotate relative to the sliding seat (522) is also provided on the sliding seat (522), and a first rotating block (538) that can rotate relative to the first clamping seat (537) and the output shaft A of the second driving component (535) is provided between the first clamping seat (537) and the output shaft A of the second driving component (535).

4. The air conditioner heat exchange special-shaped pipe welding device according to claim 3, characterized in that: The first clamping seat (537) is provided with a positioning slot (5371) into which the upper portion of the three-way connecting pipe (1032) can be inserted.

5. The air conditioner heat exchange special-shaped pipe welding device according to claim 1, characterized in that: The supporting component (54) comprises a supporting block (541) connected to the third bracket (51) and extending transversely relative to the third bracket (51), and the supporting block (541) is provided with a supporting surface (542) capable of supporting the three-way connecting pipe (1032).

6. The air conditioner heat exchange special-shaped pipe welding device according to claim 1, characterized in that: The second positioning assembly (4) comprises a second bracket (41), the second bracket (41) being connected to a first support frame (411) capable of contacting and leaning against the top surface of the first connecting tube (1031), the second bracket (41) being provided with a driving motor (412), the output shaft B of the driving motor (412) being connected to a second support frame (413) capable of sliding up and down following the output shaft B and cooperating with the first support frame (411) to clamp the first connecting tube (1031), and a guiding assembly capable of guiding the second support frame (413) to slide is provided between the second support frame (413) and the second bracket (41).

7. The air conditioner heat exchange special-shaped pipe welding device according to claim 6, characterized in that: The first support frame (411) has two first clamping blocks (4111) arranged at intervals on the left and right, and the first clamping block (4111) is provided with a first clamping arc surface (4112). The second support frame (413) includes a second connecting block (4131) connected to the output shaft B, and the left and right sides of the second connecting block (4131) are connected to the second clamping blocks (4132), and the second clamping block (4132) is provided with a second clamping arc surface (4133), and the first clamping block (4111) and the second clamping block (4132) on the same side are arranged at intervals in front and back.

8. The air conditioner heat exchange special-shaped pipe welding device according to claim 1, characterized in that: The first positioning assembly (3) comprises a first bracket (31) connected to the base (2); the first bracket (31) is provided with a second recess (311) capable of receiving the first connecting tube (1031); the front side of the first bracket (31) is provided with a fourth sliding block (312), a fifth sliding block (313) and a sixth sliding block (314) capable of sliding relative to the first bracket (31) to clamp the first connecting tube (1031).

9. The air conditioner heat exchange special-shaped pipe welding device according to claim 1, characterized in that: The support base (1) comprises a base body (11), to which a table top (12) capable of rotating relative to the base body (11) is connected, and a plurality of bases (2) are arranged on the top surface of the table top (12) and are arranged at intervals around the circumference of the table top (12).

10. The air conditioner heat exchange special-shaped pipe welding device according to claim 1, characterized in that: Each of the bases (2) is detachably connected to the support base (1), and the first positioning assembly (3), the second positioning assembly (4) and the third positioning assembly (5) are movably connected to the base (2).

Images