Precision adjusting device for outdoor decorative moulding of building curtain wall

Abstract

The invention relates to the technical field of building decoration adjustment, and discloses a building curtain wall outdoor decoration line precision adjusting device which comprises a supporting rod and an adjusting shell arranged outside the supporting rod in a sleeving mode, and a driving bin, a reset bin and a limiting bin are formed in the adjusting shell. A driving mechanism is arranged in the driving bin and used for driving the adjusting shell to move in the length direction of the supporting rod, clamping rods are arranged on the two sides of the adjusting shell in a sliding mode, and the clamping rods penetrate into the reset bin. During use, the decoration strip can be clamped through the clamping rod, the positioning wheel at one end of the clamping rod can be stably attached to the outer side of the clamped decoration strip through the reset mechanism, shaking is not prone to occurring during adjustment, and the adjustment precision of the decoration strip is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of building decoration adjustment, and particularly relates to a device for adjusting the accuracy of outdoor decorative lines of building curtain walls. Background Art

[0002] As an important component of the building facade, the outdoor decorative lines of building curtain walls directly affect the overall aesthetics and visual effects of the building. However, in the prior art, the installation of decorative lines often faces problems of accuracy deviation. Especially in complex construction environments or high-altitude operation scenarios, decorative panels are prone to phenomena such as splicing misalignment and uneven joints due to improper adjustment, seriously weakening the decorative effect of the curtain wall.

[0003] Traditional adjustment devices mostly adopt simple clamping structures, with rough adjustment mechanisms and lack of fine-tuning functions, making it difficult to achieve precise positioning. During positioning, it is not accurate enough. At the same time, the clamping mechanisms have insufficient adaptability and cannot flexibly cope with decorative panels of different sizes and irregular edges. Additionally, the process of clamping and adjusting the decorative panels by existing devices is rather cumbersome, especially during high-altitude operations, further exacerbating the low installation efficiency and safety hazards. Therefore, a device is needed to solve the above problems. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a device for adjusting the accuracy of outdoor decorative lines of building curtain walls, which solves the problems that the clamping process is cumbersome and the adjustment accuracy is low when the existing device adjusts the decorative lines.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: A device for adjusting the accuracy of outdoor decorative lines of building curtain walls includes a support rod and an adjustment housing sleeved outside the support rod. A drive chamber, a reset chamber, and a limit chamber are provided inside the adjustment housing. A drive mechanism is provided inside the drive chamber to drive the adjustment housing to move along the length direction of the support rod; Clamping rods are slidably arranged on both sides of the adjustment housing, and the clamping rods penetrate into the interior of the reset chamber. A reset mechanism is provided inside the reset chamber to pull the clamping rods to move. A rotatable positioning plate is provided at one end of the clamping rod away from the adjustment housing, and a positioning wheel is provided at one end of the positioning plate to clamp the decorative panel; A first limit mechanism is provided inside the limit chamber to fix the initial position of the clamping rod, and a second limit mechanism is provided on the outer wall of the adjustment housing to limit the movement position of the clamping rod; One end of the support rod is connected to a secondary rod through a rotating shaft, and fixing rods are provided at the other end of the support rod and one end of the secondary rod to fix the support rod relative to the building curtain wall.

[0006] Optionally, the driving mechanism includes a worm and a driving handle, a rack is provided on one side of the support rod, the worm is provided on the inner wall of the driving bin and meshes with the rack, the driving handle is provided on the front side of the adjusting shell and penetrates into the driving bin, and the driving handle is connected to one end of the worm through two mutually meshing bevel gears.

[0007] Optionally, the reset mechanism is a reset spring, the reset spring is fixedly connected to the inner wall of the reset bin, and the other end of the reset spring is fixedly connected to one end of the clamping rod.

[0008] Optionally, an auxiliary rod is provided inside the reset bin, a positioning groove is provided inside the clamping rod, the auxiliary rod is slidably inserted in the positioning groove, and the auxiliary rod is inserted into the reset spring.

[0009] Optionally, the first limiting mechanism includes a support plate, a limiting buckle and a compression spring, the compression spring is fixedly connected to the inner wall of the limiting bin, the support plate is fixedly connected to one end of the compression spring, the limiting buckle is fixedly connected to both ends of the upper surface of the support plate, one end of the clamping rod is provided with a limiting groove adapted to the limiting buckle, and the limiting buckle is inserted into the inner wall of the limiting groove to limit the movement of the clamping rod.

[0010] Optionally, a push rod is fixedly connected to the middle of the support plate, and the push rod passes through one end of the adjustment shell.

[0011] Optionally, the second limiting mechanism is a slider, a plurality of positioning holes are formed on the outer wall of the clamping rod, the slider is plugged into the positioning holes, and one side of the slider is provided with an angle.

[0012] Optionally, a sleeve is provided at one end of the clamping rod, and a rotating seat is provided at one end of the positioning plate. The rotating seat is arranged on the sleeve so that the positioning plate can rotate around the sleeve to fit the decorative plate.

[0013] Optionally, a plurality of positioning springs are provided inside the sleeve, and one end of the positioning spring is connected to the rotating seat to reset the rotating seat.

[0014] Optionally, a connecting frame is rotatably provided at one end of the fixing rod, and a vacuum suction cup is provided at one end of the connecting frame for locating the position of the fixing rod.

[0015] The present invention provides a device for adjusting the precision of outdoor decorative lines of a building curtain wall, which has the following beneficial effects: 1. By adjusting the matching setting of the housing, the clamping rod and the reset mechanism, the decorative strip can be clamped by the clamping rod during use, and the positioning wheel at one end of the clamping rod can be firmly attached to the outside of the clamped decorative strip through the reset mechanism, so that it is not easy to shake during adjustment, thereby improving the accuracy of adjusting the decorative line; 2. Through the cooperative setting of the first limiting mechanism and the second limiting mechanism, when clamping the decorative line, the decorative line itself can push open the first limiting mechanism, enabling the reset mechanism to pull the clamping rod back to its original position, so that the positioning wheel at one end of the clamping rod clamps outside the device line, reducing the steps required for fixing the decorative line and the complexity of the operation. At the same time, the second limiting mechanism can limit the other moving direction of the clamping rod, preventing the clamping rod from shaking during the adjustment process; 3. Through the cooperative setting of the support rod and the drive mechanism, rotating the drive wheel can drive the internal worm to rotate, and the position of the adjustment housing on the support rod can be adjusted through the worm, thereby adjusting the position of the decorative line at one end. Using the rotation of the worm can improve the accuracy of the adjustment process and reduce deviations; 4. Through the cooperative setting of the clamping rod, the positioning plate and the positioning wheel, decorative lines of different sizes can be clamped and fixed. At the same time, in cooperation with the positioning plate and the positioning wheel, when clamping a decorative line with an uneven side, it can also have good clamping strength. While improving the versatility of the device, the positioning wheel also reduces the wear caused to the decorative line due to position adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a schematic structural diagram of the present invention before use; Figure 3 is a schematic structural diagram of the present invention during the clamping process; Figure 4 is a schematic cross-sectional structural diagram of the sleeve of the present invention.

[0017] In the figure: 1. Support rod; 2. Adjustment housing; 3. Drive chamber; 4. Reset chamber; 5. Limiting chamber; 6. Clamping rod; 7. Positioning plate; 8. Positioning wheel; 9. Fixed rod; 10. Worm; 11. Drive handle; 12. Rack; 13. Auxiliary rod; 14. Positioning groove; 15. Support plate; 16. Limiting buckle; 17. Compression spring; 18. Limiting groove; 19. Thrust rod; 20. Slide block; 21. Positioning hole; 22. Sleeve; 23. Rotating seat; 24. Positioning spring; 25. Sub-rod; 26. Connecting frame; 27. Vacuum suction cup; 28. Reset spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1 to 4, the present invention provides a technical solution: a precision adjustment device for outdoor decorative lines of building curtain walls, including a support rod 1 and an adjustment housing 2 sleeved outside the support rod 1. A drive chamber 3, a reset chamber 4, and a limit chamber 5 are provided inside the adjustment housing 2. A drive mechanism is provided inside the drive chamber 3 to drive the adjustment housing 2 to move along the length direction of the support rod 1.

[0020] Clamping rods 6 are slidably arranged on both sides of the adjustment housing 2, and the clamping rods 6 penetrate into the inside of the reset chamber 4. A reset mechanism is provided inside the reset chamber 4 to pull the clamping rods 6 to move. A rotatable positioning plate 7 is provided at one end of the clamping rod 6 away from the adjustment housing 2, and a positioning wheel 8 is provided at one end of the positioning plate 7 to clamp the decorative plate.

[0021] A first limit mechanism is provided inside the limit chamber 5 to fix the initial position of the clamping rod 6, and a second limit mechanism is provided on the outer wall of the adjustment housing 2 to limit the movement position of the clamping rod 6.

[0022] One end of the support rod 1 is connected to a secondary rod 25 through a rotating shaft. Fixing rods 9 are provided at both the other end of the support rod 1 and one end of the secondary rod 25 to fix the support rod 1 relative to the building curtain wall.

[0023] The fixing rod 9 fixes the support rod 1 and the secondary rod 25 on the surface of the wall. A fixing bolt is provided at the connection position between the secondary rod 25 and the support rod 1. After tightening the fixing bolt, the angle between the secondary rod 25 and the support rod 1 can be fixed to prevent the two from rotating. At the same time, in special-shaped positions, the orientation of the secondary rod 25 can be adjusted, thereby adjusting the position of the fixing rod 9 connected to one end of the secondary rod 25, making it more flexible when using the fixing rod 9 for fixing. The drive mechanism in the drive chamber 3 can drive the adjustment housing 2 to slide on the surface of the support rod 1, and at the same time drive the decorative line clamped at one end to move, so as to adjust the horizontal position of the decorative line. In use, multiple devices can be used together to clamp the decorative line at multiple points to improve the adjustment accuracy. The clamping rods 6 can be clamped on both sides of the decorative line to play a role in clamping and fixing the decorative line. Before clamping, the clamping rods 6 on both sides can be pulled apart to increase the clamping width. The initial position of the clamping rod 6 can be fixed through the first limit mechanism. When clamping, through the reset mechanism and the second limit mechanism, the clamping rods 6 on both sides can be tightened towards the middle, so as to clamp the decorative line in the middle. The positioning plate 7 can rotate around one end of the clamping rod 6 by a certain amplitude, and when facing the decorative line with a special-shaped curved surface, it can better fit the surface of the decorative line.

[0024] In this embodiment, as a preferred solution, the driving mechanism includes a worm 10 and a driving handle 11, a rack 12 is provided on one side of the support rod 1, the worm 10 is arranged on the inner wall of the driving bin 3 and meshes with the rack 12, the driving handle 11 is arranged on the front side of the adjusting shell 2 and penetrates into the driving bin 3, and the driving handle 11 is connected to one end of the worm 10 through two mutually meshing bevel gears.

[0025] One end of the driving handle 11 is connected to the worm 10 through a bevel gear. When the driving handle 11 is rotated, the driving handle 11 drives the worm 10 to rotate. The worm 10 meshes with the rack 12 on the surface of the support rod 1. When the worm 10 rotates, it drives the adjustment housing 2 to move on the surface of the support rod 1. The meshing of the worm 10 with the gear makes the size adjustment more precise and the adjustment accuracy is improved.

[0026] In this embodiment, as a preferred solution, the reset mechanism is a reset spring 28, which is fixedly connected to the inner wall of the reset chamber 4, and the other end of the reset spring 28 is fixedly connected to one end of the clamping rod 6. An auxiliary rod 13 is provided inside the reset chamber 4, and a positioning groove 14 is provided inside the clamping rod 6. The auxiliary rod 13 is slidably inserted into the positioning groove 14, and the auxiliary rod 13 is inserted into the reset spring 28.

[0027] The reset spring 28 is a tension spring. After the clamping rod 6 is pulled outward, the reset spring 28 will pull the clamping rod 6 toward the inside of the adjusting shell 2, tending to reset the clamping rod 6. The auxiliary rod 13 is inserted into the clamping rod 6. During the process of pulling out and retracting the clamping rod 6, the auxiliary rod 13 can play an auxiliary supporting role, reduce the amplitude of the shaking of the clamping rod 6, and improve the stability during use.

[0028] In this embodiment, as a preferred solution, the first limiting mechanism includes a support plate 15, a limiting buckle 16 and a compression spring 17. The compression spring 17 is fixedly connected to the inner wall of the limiting bin 5. The support plate 15 is fixedly connected to one end of the compression spring 17. The limiting buckle 16 is fixedly connected to both ends of the upper surface of the support plate 15. One end of the clamping rod 6 is provided with a limiting groove 18 adapted to the limiting buckle 16. The limiting buckle 16 is inserted into the inner wall of the limiting groove 18 to limit the movement of the clamping rod 6. A push rod 19 is fixedly connected to the middle part of the support plate 15, and the push rod 19 passes through one end of the adjustment shell 2.

[0029] The first limiting mechanism can limit the position of the clamping rod 6 after it is pulled out. The compression spring 17 pushes the support plate 15 to one side. During the movement of the support plate 15, the limiting buckle 16 arranged on the surface thereof extends out. After the clamping rod 6 is pulled outwards, the limiting buckle 16 can be inserted into the limiting groove 18 at one end of the clamping rod 6, thereby fixing the position of the clamping rod 6 and preventing the clamping rod 6 from retracting. After the adjusting housing 2 is abutted against the decorative line, the decorative line will push the ejector rod 19 in the middle of the adjusting housing 2 into the inside of the adjusting housing 2. While the ejector rod 19 retracts, the ejector rod 19 will push the internal support plate 15 to one side, separating the limiting buckle 16 on the support plate 15 from the limiting groove 18 at one end of the clamping rod 6. After separation, the return spring 28 will pull the clamping rod 6 to move into the return bin 4, so that the positioning wheel 8 arranged at one end of the clamping rod 6 clamps the decorative line in the middle.

[0030] In this embodiment, as a preferred solution, the second limiting mechanism is a slider 20. A plurality of positioning holes 21 are formed in the outer wall of the clamping rod 6. The slider 20 is inserted into the positioning holes 21, and an inclined angle is provided on one side of the slider 20.

[0031] The slider 20 is provided with an inclined angle facing the outside of the adjusting housing 2. During the resetting process of the clamping rod 6, the slider 20 cannot be stuck in the positioning holes 21 on the surface of the clamping rod 6. After the positioning wheel 8 clamps the decorative line, the position is determined. At this time, the slider 20 is pushed into one of the positioning holes 21. When performing horizontal adjustment, the decorative line will give a reverse thrust to the positioning wheel 8. After the thrust is transmitted to the clamping rod 6, it will cause the clamping rod 6 to have a tendency to move outwards. At this time, since the slider 20 abuts against the positioning hole 21 and the other side of the slider 20 is a plane, the slider 20 can be clamped together with the positioning hole 21 to prevent the clamping rod 6 from moving, reducing the error caused by the shaking of the clamping rod 6 during adjustment. A spring is arranged inside the slider 20 to ensure that the slider 20 can always abut against the clamping rod 6. When it is necessary to pull the clamping rod 6 outwards, the slider 20 is pulled to one side. The side surface of the limiting buckle 16 is provided with an inclined surface opposite to the slider 20, which can make the clamping rod 6 move outwards and cannot move into the return bin 4.

[0032] In this embodiment, as a preferred solution, a sleeve 22 is arranged at one end of the clamping rod 6, and a rotating seat 23 is arranged at one end of the positioning plate 7. The rotating seat 23 is arranged on the sleeve 22 so that the positioning plate 7 can rotate around the sleeve 22 to fit the decorative plate. A plurality of positioning springs 24 are arranged inside the sleeve 22, and one end of the positioning spring 24 is connected to the rotating seat 23 to reset the rotating seat 23.

[0033] The sleeve 22 is wrapped around the outer surface of the rotating seat 23. The rotating seat 23 can rotate within a certain range inside the sleeve 22. When clamping the special-shaped curved surface, the rotating seat 23 deflects, driving the positioning plate 7 at one end to rotate. The rotation of the positioning plate 7 will in turn cause the positioning wheel 8 to deflect, enabling the positioning wheel 8 to better fit the decorative line surface of the special-shaped curved surface. After removing the clamping, multiple positioning springs 24 inside the sleeve 22 can pull the rotating seat 23 back to the vertical position, resetting the rotating seat 23.

[0034] In this embodiment, as a preferred solution, a connecting frame 26 is rotatably provided at one end of the fixed rod 9. A vacuum suction cup 27 is provided at one end of the connecting frame 26 for positioning the position of the fixed rod 9.

[0035] The connecting frame 26 is arranged in a V shape to improve the support strength. At the same time, the connecting frame 26 can rotate around one end of the fixed rod 9. When using the vacuum suction cup 27 at one end for adsorption, the adsorption position can be adjusted, making it more flexible during fixation. Moreover, the vacuum suction cup 27 is detachably connected. When facing materials that cannot be adsorbed, the vacuum suction cup 27 can be removed, and the position of the connecting frame 26 can be directly fixed using bolts, thereby fixing the position of the support rod 1. The fixed rod 9 is a telescopic structure. During use, the two ends of the fixed rod 9 can be first fixed to the wall surface, and then the length of the fixed rod 9 can be shortened so that the middle adjustment housing 2 fits the decorative line, enabling the decorative line to push the ejector rod 19 into the adjustment housing 2.

[0036] In the present invention, the working steps of the device are as follows: 1. During use, select a suitable fixing structure according to the different materials of the wall surface. For example, when adjusting on a glass wall surface, use the vacuum suction cup 27 for fixation. Before fixation, first adjust the positions of the support rod 1 and the auxiliary rod 25 to appropriate angles according to the shape of the construction area, and use the fixing bolts in the middle to fix their angles. After fixation, fix the fixed rod 9 at one end of the support rod 1 to the wall surface. After fixing, adjust the levelness of the support rod 1. After adjusting the support rod 1 to the horizontal position, also fix the fixed rod 9 at one end of the auxiliary rod 25 to the wall surface; 2. After fixing the position of the support rod 1, rotate the driving handle 11 to adjust the position of the adjustment housing 2 so that the positioning wheels 8 on both sides are located on both sides of the decorative line. Push the support rod 1 and the auxiliary rod 25 towards the decorative line side, causing the decorative line to push the ejector rod 19 back into the adjustment housing 2. After the ejector rod 19 is pushed back, the return spring 28 will pull the clamping rod 6 inwards to retract, so that the positioning wheels 8 on both sides clamp on both sides of the decorative line; 3. After clamping, rotate the driving handle 11 to drive the adjustment housing 2 to move on the support rod 1, thereby driving the decorative line at one end to move and adjusting the position of the decorative line; 4. After the adjustment is completed, remove the device. Pull the slider 20 to one side to separate the slider 20 from the positioning hole 21, and pull out the clamping rod 6 from the adjustment housing 2. After pulling it out, buckle it at the next position to be adjusted for adjustment.

[0037] Finally, it should also be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0038] The specific embodiments provided by the present invention have been introduced in detail above. Specific examples are used in this text to elaborate on the principles and embodiments of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific embodiments and application scopes. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A device for adjusting the precision of outdoor decorative lines of a building curtain wall, characterized in that: The invention comprises a support rod (1) and an adjusting housing (2) sleeved on the outside of the support rod (1); a driving chamber (3), a reset chamber (4) and a limit chamber (5) are provided inside the adjusting housing (2); a driving mechanism is provided inside the driving chamber (3) for driving the adjusting housing (2) to move along the length direction of the support rod (1); Clamping rods (6) are slidably provided on both sides of the adjustment housing (2), and the clamping rods (6) penetrate into the interior of the reset chamber (4). A reset mechanism is provided inside the reset chamber (4) for pulling the clamping rods (6) to move toward each other. A rotatable positioning plate (7) is provided at one end of the clamping rod (6) away from the adjustment housing (2), and a positioning wheel (8) is provided at one end of the positioning plate (7) for clamping the decorative plate. A first limiting mechanism is provided inside the limiting bin (5), the first limiting mechanism being used to fix the initial position of the clamping rod (6), and a second limiting mechanism is provided on the outer wall of the adjusting housing (2) being used to limit the movable position of the clamping rod (6); One end of the support rod (1) is connected to a secondary rod (25) via a rotating shaft, and the other end of the support rod (1) and one end of the secondary rod (25) are both provided with a fixing rod (9) for fixing the support rod (1) relative to the building curtain wall.

2. The device for adjusting the precision of outdoor decorative lines of a building curtain wall according to claim 1, characterized in that: The driving mechanism comprises a worm (10) and a driving handle (11); a rack (12) is provided on one side of the support rod (1); the worm (10) is arranged on the inner wall of the driving bin (3) and meshes with the rack (12); the driving handle (11) is arranged on the front side of the adjustment housing (2) and penetrates into the driving bin (3); the driving handle (11) is transmission-connected to one end of the worm (10) via two mutually meshing bevel gears.

3. The device for adjusting the precision of outdoor decorative lines of a building curtain wall according to claim 2, characterized in that: The reset mechanism is a reset spring (28), the reset spring (28) is fixedly connected to the inner wall of the reset chamber (4), and the other end of the reset spring (28) is fixedly connected to one end of the clamping rod (6).

4. The device for adjusting the precision of outdoor decorative lines of a building curtain wall according to claim 3, characterized in that: An auxiliary rod (13) is provided inside the reset chamber (4), a positioning groove (14) is provided inside the clamping rod (6), the auxiliary rod (13) is slidably inserted into the positioning groove (14), and the auxiliary rod (13) is inserted into the reset spring (28).

5. A device for adjusting the precision of outdoor decorative lines of a building curtain wall according to any one of claims 1 to 4, characterized in that: The first limiting mechanism comprises a support plate (15), a limiting buckle (16) and a compression spring (17); the compression spring (17) is fixedly connected to the inner wall of the limiting bin (5); the support plate (15) is fixedly connected to one end of the compression spring (17); the limiting buckle (16) is fixedly connected to both ends of the upper surface of the support plate (15); one end of the clamping rod (6) is provided with a limiting groove (18) adapted to the limiting buckle (16); the limiting buckle (16) is plugged into the inner wall of the limiting groove (18) to limit the movement of the clamping rod (6).

6. The device for adjusting the precision of outdoor decorative lines of a building curtain wall according to claim 5, characterized in that: A push rod (19) is fixedly connected to the middle of the support plate (15), and the push rod (19) passes through one end of the adjustment housing (2).

7. A device for adjusting the precision of outdoor decorative lines of a building curtain wall according to any one of claims 1 to 4, characterized in that: The second limiting mechanism is a slider (20), a plurality of positioning holes (21) are provided on the outer wall of the clamping rod (6), the slider (20) is plugged into the positioning holes (21), and one side of the slider (20) is provided with an oblique angle.

8. A device for adjusting the precision of outdoor decorative lines of a building curtain wall according to any one of claims 1 to 4, characterized in that: A sleeve (22) is provided at one end of the clamping rod (6), and a rotating seat (23) is provided at one end of the positioning plate (7). The rotating seat (23) is arranged on the sleeve (22) so that the positioning plate (7) can rotate around the sleeve (22) to fit the decorative plate.

9. The device for adjusting the precision of outdoor decorative lines of a building curtain wall according to claim 8, characterized in that: A plurality of positioning springs (24) are arranged inside the sleeve (22), and one end of the positioning spring (24) is connected to the rotating seat (23) for resetting the rotating seat (23).

10. A device for adjusting the precision of outdoor decorative lines of a building curtain wall according to any one of claims 1 to 4, characterized in that: A connecting frame (26) is rotatably provided at one end of the fixing rod (9), and a vacuum suction cup (27) is provided at one end of the connecting frame (26) for locating the position of the fixing rod (9).

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