Scaffold and exterior wall coating construction method

Abstract

The application relates to the technical field of outer wall construction, and discloses a scaffold and an outer wall paint construction method, which comprises vertical rods, horizontal rods and long shaft rods movably connected between every two groups of the vertical rods, and oblique rods obliquely connected to the outer surfaces of the horizontal rods with different heights. The outer surfaces of the long shaft rods are movably provided with standing table surfaces and auxiliary structures, and the outer surfaces of the horizontal rods are provided with reinforcing structures. The auxiliary structures comprise connecting rods movably arranged between the upper and lower long shaft rods, and connecting assemblies and extension assemblies arranged at the upper ends of the connecting rods. Through the above technical scheme, the existing scaffold and the outer wall paint construction method are used, and the paint is sprayed by manually holding a spray gun. However, the distance between the head of the spray gun and the wall body changes continuously during the manual spray gun spraying process, which easily influences the final spraying quality and the spraying effect is unstable.

Description

Technical Field

[0001] This invention relates to the field of exterior wall construction technology, specifically to a method for constructing scaffolding and exterior wall coatings. Background Technology

[0002] Scaffolding and other standing platforms are usually required during exterior wall coating construction. The setting of standing platforms can greatly facilitate workers' standing and direct spraying of the exterior wall. The setting of scaffolding solves the problem of workers spraying the exterior wall in various horizontal or vertical directions during exterior wall coating construction. Scaffolding can also be used for vertical or horizontal material handling.

[0003] According to the search, the invention discloses an external wall scaffold for building construction with application publication number CN108049621A. The invention features a waterproof and sun-proof tarpaulin storage groove and a roll-up shaft. The waterproof and sun-proof tarpaulin is fixed to the top of the uprights by a lock, and a support rod is provided between the waterproof and sun-proof tarpaulin and the steel pipe to form an activity space for the workers. Under the action of the roll-up shaft, it is easy to store the tarpaulin in the waterproof and sun-proof tarpaulin storage groove.

[0004] However, the existing scaffolding and exterior wall coating construction methods mentioned above all rely on manual hand-held spray guns for spraying. During the manual hand-held spraying process, the distance between the spray gun head and the wall usually changes continuously, which can have a significant impact on the final spraying quality and result in an unstable spraying effect. Therefore, we propose a new method for scaffolding and exterior wall coating construction. Summary of the Invention

[0005] This invention proposes a method for constructing scaffolding and exterior wall coatings, which solves the problem that existing methods for constructing scaffolding and exterior wall coatings rely on manual spraying with handheld spray guns. However, during manual spraying, the distance between the spray gun head and the wall often changes continuously, which can significantly affect the final coating quality and result in unstable coating effects.

[0006] The technical solution of the present invention is as follows:

[0007] A scaffold includes longitudinal members, with horizontal members and long axis members movably connected between adjacent groups of longitudinal members, and diagonal members obliquely connected to the outer surfaces of the horizontal members at different heights. A standing platform is movably provided on the outer surface of the long axis member, and an auxiliary structure is movably provided on the outer surface of the long axis member. A reinforcing structure is provided on the outer surface of the horizontal member.

[0008] The auxiliary structure includes a connecting rod movably disposed between two sets of upper and lower long shafts. The upper ends of the connecting rod are respectively provided with a connecting component and an extension component, and a clamping component is slidably connected to the outer surface of the connecting rod.

[0009] The connecting assembly includes a columnar groove at the upper end of the connecting rod, a movable rod slidably disposed inside the columnar groove, a movable column fixedly connected to the upper end of the movable rod, a fixed bracket fixedly connected to one side of the movable column and the connecting rod, a guide wheel rotatably connected inside the fixed bracket, a rotating sleeve rotatably connected to the outer surface of the connecting rod, an internal gear ring fixedly connected inside the rotating sleeve, an internal gear movably sleeved on the outer surface of the movable rod corresponding to the internal gear ring, a convex ring fixedly connected to the outer surface of the inner wall of the connecting rod near the rotating sleeve, an annular groove matching the convex ring being opened on the outer surface of the rotating sleeve, and a guide column disposed inside the movable rod.

[0010] As a further technical solution of the present invention, the reinforcing structure includes a fixed rod fixedly connected to the outer surface of the crossbar, a rotating shaft rotatably connected to the inner axis of the fixed rod, a rotating disk fixedly connected to the outer surface of the rotating shaft near the upper end, a reinforcing rod fixedly connected to the lower end of the rotating shaft, and a limit component provided on the outer surface of the fixed rod near the reinforcing rod.

[0011] As a further technical solution of the present invention, the movable rod moves up and down along the columnar groove, the internal gear ring and the internal gear are meshed, the guide post is a regular square prism structure, the lower end of the guide post is fixedly connected to the connecting rod, the guide post and the movable rod are slidably connected, the rotating sleeve together with the internal gear ring is rotatably connected to the connecting rod, the internal gear and the movable rod are threadedly connected, the movable rod matches the columnar groove, and the up and down movement of the movable rod is realized by the forward and reverse rotation of the rotating sleeve, the middle part of the outer surface of the guide wheel is an arc-shaped structure that matches the long shaft, the number of guide wheels corresponding to the fixed brackets on the movable post and the connecting rod are two sets each, and the guide wheel and the long shaft are rollingly connected.

[0012] As a further technical solution of the present invention, the extension component includes a guide groove formed at the lower end of the connecting rod, a return spring is provided inside the guide groove, a sliding post is connected to the lower end of the return spring, a strip-shaped groove is formed on the outer surface of the sliding post, a protrusion matching the strip-shaped groove is fixedly connected to the inner wall of the connecting rod, a movable head is fixedly connected to the lower end of the sliding post, a stepping rod is fixedly connected to the outer surface of the movable head, a strip-shaped groove is fixedly connected to the outer surface of the movable head, and a guide wheel is rotatably connected inside the strip-shaped groove.

[0013] As a further technical solution of the present invention, the sliding column and the connecting rod are slidably connected, the upper ends of the return spring are fixedly connected to the sliding column and the connecting rod respectively, and the sliding column is guided to move up and down along the guide groove through the strip groove and the protrusion. The number of guide wheels corresponding to the fixed bracket on the movable head is one set.

[0014] As a further technical solution of the present invention, the clamping assembly includes a sliding member movably sleeved on the outer surface of the connecting rod. One end of the sliding member is fixedly connected to a fixed plate. The outer surface of the fixed plate has a strip-shaped opening. A movable plate is slidably connected to the outer surface of the fixed plate. A small motor is fixedly connected to one side of the outer surface of the fixed plate. A lead screw is rotatably connected to the other side of the fixed plate corresponding to the output end of the small motor. A cover is movably connected to the outer surface of the fixed plate corresponding to the lead screw. A controller is fixedly connected to the outer surface of the fixed plate on both the side of the movable plate near the fixed plate and the side of the fixed plate near the movable plate.

[0015] As a further technical solution of the present invention, the sliding member is a transverse "T"-shaped structure. The sliding member moves up and down along the connecting rod. The controller and the small motor are electrically connected. The controller controls the forward and reverse operation of the small motor. The rotation of the small motor drives the rotation of the lead screw. The lower end of the movable plate extends from the opening of the strip-shaped opening to the bottom of the fixed plate. The lead screw passes through the outer surface of the movable plate. The movable plate and the lead screw are threaded together. The rotation of the lead screw enables the movable plate to slide along the length direction of the lead screw.

[0016] As a further technical solution of the present invention, the limiting component includes a fixing plate fixedly connected to the outer surface of the fixing rod, a guide rod fixedly connected to the lower end of the fixing plate, a limiting frame slidably connected to the outer surface of the guide rod, a pushing spring connected between the upper end of the limiting frame and the lower end of the fixing plate, and a limiting groove matching the width of the reinforcing rod opened at the lower end of the limiting frame, the limiting groove being four sets and distributed in a ring array.

[0017] As a further technical solution of the present invention, the axis of the rotating shaft coincides with the axis of the rotating shaft, the lower end of the reinforcing rod is flush with the lower end of the longitudinal rod, the guide rod passes through the limiting frame, the limiting frame is slidably connected to the guide rod and the fixed rod, the two ends of the jacking spring are fixedly connected to the fixed plate and the limiting frame respectively, and the rotation of the reinforcing rod is restricted by the limiting groove on the outer surface of the limiting frame.

[0018] This invention also includes a method for using scaffolding for exterior wall coating construction, the method specifically including the following steps:

[0019] a. Scaffolding erection: The user erects the scaffolding to the outside of the exterior wall. After the erection is completed, one hand grasps the limiting bracket and moves it upward. At this time, the jacking spring will contract, and the limiting groove will not jam the reinforcing rod. Then, the other hand grasps the rotating plate and rotates it 90°. Then, both hands are slowly released at the same time. Under the reaction force of the jacking spring, the opening of the limiting groove will just correspond to the position of the reinforcing rod and engage.

[0020] b. Base treatment: Users repair and clean the exterior walls on the scaffolding until the walls are solid and clean;

[0021] c. Local repair: Apply putty to the damaged areas of the wall, and after it dries, sand it smooth.

[0022] d. Applying primer and dividing the surface: Apply a layer of primer. After the primer dries, use a level to attach grid-shaped masking tape to the wall. After the masking tape is attached, apply another layer of primer to the areas marked with masking tape.

[0023] e. Spraying: 1) Auxiliary structure installation: Install the auxiliary structure between the long shaft at the standing platform and a set of long shafts above the long shaft at that location. After installation, place the spray gun for spraying between the movable plate and the fixed plate, and at the same time control the appropriate distance between the spray gun head and the wall. Then, control the movable plate to move closer to the fixed plate through the controller, so that the movable plate cooperates with the fixed plate to clamp the spray gun between the two.

[0024] 2) Spraying: Hold the spray gun and spray, then hold the spray gun and move it. At this time, the user pushes the spray gun to make the fixed plate and the sliding part move up and down along the connecting rod. The guide wheel makes the entire connecting rod wall move horizontally until all areas of the wall are sprayed.

[0025] The working principle and beneficial effects of this invention are as follows:

[0026] 1. In this invention, the auxiliary structure helps users to better apply paint using the scaffolding. It also allows for quick connection between the auxiliary structure and the scaffolding, making the exterior wall paint spraying process more stable and resulting in better spraying effects.

[0027] 2. By strengthening the structure, this invention can increase the contact area between the bottom of the scaffold and the ground, and can also extend the scaffold outward to a certain extent, making the scaffold more stable and reducing the possibility of it tipping over during use. Attached Figure Description

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0029] Figure 1 This is a schematic diagram of the structure of the present invention;

[0030] Figure 2 This is a partial structural diagram illustrating the disassembly and installation of the auxiliary structure of the present invention;

[0031] Figure 3 This is a schematic diagram of the auxiliary structure in this invention;

[0032] Figure 4This is a partial structural diagram showing the cross-section of the connecting component in this invention;

[0033] Figure 5 For the present invention Figure 4 A schematic diagram of the partial structure cut out from another perspective;

[0034] Figure 6 For the present invention Figure 4 Enlarged view of A in the middle;

[0035] Figure 7 For the present invention Figure 5 Enlarged view of point B in the middle;

[0036] Figure 8 This is a partial structural diagram of the extended component in this invention.

[0037] Figure 9 This is a partial structural diagram of the clamping assembly of the present invention;

[0038] Figure 10 For the present invention Figure 9 Another perspective: a partial structural diagram of the cover after disassembly;

[0039] Figure 11 This is a partial structural diagram of the reinforcing structure in this invention;

[0040] Figure 12 This is a schematic diagram of a partial structure cut open at the reinforcing structure in this invention.

[0041] In the diagram: 1. Vertical bar; 2. Horizontal bar; 3. Long shaft; 4. Standing platform; 5. Auxiliary structure; 51. Connecting rod; 52. Connecting assembly; 521. Columnar groove; 522. Movable rod; 523. Movable column; 524. Fixed bracket; 525. Guide wheel; 526. Rotating sleeve; 527. Internal gear ring; 528. Internal gear; 529. Convex ring; 5230. Guide column; 53. Extension assembly; 531. Guide groove; 532. Return spring; 533. Sliding column; 534. Strip groove; 535. Convex strip; 536. Step lever; 537. Movable head; 54. Clamping assembly; 541. Sliding component; 542. Fixing plate; 543. Strip-shaped opening; 544. Movable plate; 545. Controller; 546. Small motor; 547. Lead screw; 548. Protective cover; 6. Reinforcing structure; 61. Fixing rod; 62. Rotating shaft; 63. Rotating disk; 64. Reinforcing rod; 65. Limiting assembly; 651. Fixing piece; 652. Guide rod; 653. Limiting frame; 654. Pushing spring; 655. Limiting groove; 7. Angled rod. Detailed Implementation

[0042] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0043] Example 1

[0044] like Figure 1 and Figure 7 As shown, this embodiment proposes a scaffold, including longitudinal bars 1, with horizontal bars 2 and long shaft bars 3 movably connected between two adjacent sets of longitudinal bars 1, with diagonal bars 7 obliquely connected to the outer surface of horizontal bars 2 at different heights, a standing platform 4 movably provided on the outer surface of long shaft bars 3, an auxiliary structure 5 movably provided on the outer surface of long shaft bars 3, and a reinforcing structure 6 provided on the outer surface of horizontal bars 2.

[0045] The auxiliary structure 5 includes a connecting rod 51 movably disposed between two sets of long shafts 3. A connecting component 52 and an extension component 53 are respectively disposed at the two ends of the upper end of the connecting rod 51. A clamping component 54 is slidably connected to the outer surface of the connecting rod 51. The connecting component 52 includes a columnar groove 521 opened at the upper end of the connecting rod 51. A movable rod 522 is slidably disposed inside the columnar groove 521. A movable column 523 is fixedly connected to the upper end of the movable rod 522. Fixed brackets 524 are fixedly connected to the outer surfaces of both the movable column 523 and the connecting rod 51. Guide wheels 525 are rotatably connected inside the fixed brackets 524. A rotating sleeve 526 is rotatably connected to the outer surface of the connecting rod 51. An internal gear ring 527 is fixedly connected inside the rotating sleeve 526. An internal gear 528 is movably sleeved on the outer surface of the movable rod 522 corresponding to the internal gear ring 527. A protruding ring 529 is fixedly connected to the outer surface of the inner wall of the connecting rod 51 near the rotating sleeve 526. The surface has an annular groove that matches the convex ring 529. A guide post 5230 is provided inside the movable rod 522. The movable rod 522 moves up and down along the columnar groove 521. The internal gear ring 527 and the internal gear 528 are meshed. The guide post 5230 has a regular square prism structure. The lower end of the guide post 5230 is fixedly connected to the connecting rod 51. The guide post 5230 and the movable rod 522 are slidably connected. The rotating sleeve 526, along with the internal gear ring 527, is connected to the connecting rod 51. The rods 51 are rotatably connected, the internal gear 528 is threadedly connected to the movable rod 522, the movable rod 522 is matched with the columnar groove 521, and the movable rod 522 moves up and down by rotating the rotating sleeve 526 in both directions. The middle part of the outer surface of the guide wheel 525 is an arc-shaped structure that matches the long shaft rod 3. The number of guide wheels 525 on the movable column 523 and the fixed bracket 524 on the connecting rod 51 are two sets each. The guide wheel 525 is rolledly connected to the long shaft rod 3.

[0046] The extension assembly 53 includes a guide groove 531 formed at the lower end of the connecting rod 51. A return spring 532 is disposed inside the guide groove 531. A sliding post 533 is connected to the lower end of the return spring 532. A strip-shaped groove 534 is formed on the outer surface of the sliding post 533. A protrusion 535 matching the strip-shaped groove 534 is fixedly connected to the inner wall of the connecting rod 51. A movable head 537 is fixedly connected to the lower end of the sliding post 533. A stepping rod 536 is fixedly connected to the outer surface of the movable head 537. The outer surface of the moving head 537 is fixedly connected to a strip groove 534, and a guide wheel 525 is rotatably connected inside the strip groove 534; the sliding column 533 and the connecting rod 51 are slidably connected; the upper ends of the return spring 532 are fixedly connected to the sliding column 533 and the connecting rod 51 respectively; the sliding column 533 is guided to move up and down along the guide groove 531 through the strip groove 534 and the protrusion 535; the number of fixed brackets 524 on the moving head 537 corresponding to the number of guide wheels 525 is one set.

[0047] The clamping assembly 54 includes a sliding member 541 movably sleeved on the outer surface of the connecting rod 51. A fixed plate 542 is fixedly connected to one end of the sliding member 541. A strip-shaped opening 543 is formed on the outer surface of the fixed plate 542. A movable plate 544 is slidably connected to the outer surface of the fixed plate 542. A small motor 546 is fixedly connected to one side of the outer surface of the fixed plate 542. A lead screw 547 is rotatably connected to the other side of the fixed plate 542 corresponding to the output end of the small motor 546. A cover 548 is movably connected to the outer surface of the fixed plate 542 corresponding to the lead screw 547. A fixed cover 548 is fixedly connected to both the outer surface of the movable plate 544 near the fixed plate 542 and the outer surface of the fixed plate 542 near the movable plate 544. A controller 545 is fixedly connected to the outer surface of the fixed plate 542; the sliding member 541 has a transverse "T"-shaped structure and moves up and down along the connecting rod 51. The controller 545 and the small motor 546 are electrically connected. The controller 545 controls the forward and reverse operation of the small motor 546. The rotation of the small motor 546 drives the rotation of the lead screw 547. The lower end of the movable plate 544 extends from the opening of the strip-shaped opening 543 to the bottom of the fixed plate 542. The lead screw 547 passes through the outer surface of the movable plate 544. The movable plate 544 and the lead screw 547 are threadedly connected. The rotation of the lead screw 547 enables the movable plate 544 to slide along the length of the lead screw 547.

[0048] Before spraying, install the auxiliary structure 5. The user can first turn the rotating sleeve 526 clockwise, causing the rotating sleeve 526 to drive the internal gear ring 527 to rotate, which in turn drives the internal gear 528 to rotate. Through the rotation of the internal gear 528, the movable rod 522 moves upward along the direction of the guide post 5230. At this time, the movable post 523 will also move upward, thereby causing the guide wheel 525 on the movable post 523 to move away from the guide wheel 525 on the connecting rod 51. Next, place the two sets of guide wheels 525 into the corresponding long shaft 3 on the foot-standing platform 4. Then, rotate the rotating sleeve 526 in the opposite direction to move the movable rod 522 and the movable column 523 downwards until the guide wheel 525 corresponding to the fixed bracket 524 on the movable column 523 is in contact with the guide wheel 525 corresponding to the fixed bracket 524 on the connecting rod 51. At this time, the guide wheels 525 are in contact with the outer surface of the long shaft 3, and the upper guide wheel 525 is in a rolling connection with the long shaft 3.

[0049] Next, step on the pedal 536 with one foot to move the movable head 537 downward. At the same time, the sliding column 533 will move downward, causing the return spring 532 to be stretched. Then, gently rotate the connecting rod 51 so that the guide wheel 525 corresponds to the long shaft 3 under the foot. Then, gently release the pedal 536. Under the reverse force of the return spring 532, the guide wheel 525 will fit into the long shaft 3. At this time, the installation of the auxiliary structure 5 is completed.

[0050] Next, the user installs the spray gun on the clamping assembly 54. The user first installs the auxiliary structure 5 between the long shaft 3 at the standing platform 4 and a set of long shaft 3 on the long shaft 3 at that location. After installation, the user places the spray gun between the movable plate 544 and the fixed plate 542, while controlling the appropriate distance between the spray gun head and the wall. Then, the user controls the movable plate 544 to move closer to the fixed plate 542 through the controller 545, so that the movable plate 544 cooperates with the fixed plate 542 to clamp the spray gun between the two, thus completing the fixation of the spray gun position.

[0051] Next, the wall is sprayed. The user can directly hold the spray gun and spray. While holding the spray gun and moving it, the user pushes the spray gun to make the fixed plate 542 and the sliding part 541 move up and down along the connecting rod 51. The guide wheel 525 makes the entire connecting rod 51 move horizontally along the wall until all areas of the wall are sprayed. With the help of the auxiliary structure 5, the distance between the spray gun and the wall can be fixed, which can make the spraying effect better and avoid quality problems caused by different spraying distances.

[0052] The reinforcing structure 6 includes a fixed rod 61 fixedly connected to the outer surface of the crossbar 2. A rotating shaft 62 is rotatably connected to the inner axis of the fixed rod 61. A rotating disk 63 is fixedly connected to the upper end of the outer surface of the rotating shaft 62. A reinforcing rod 64 is fixedly connected to the lower end of the rotating shaft 62. A limit component 65 is provided on the outer surface of the fixed rod 61 near the reinforcing rod 64.

[0053] The limiting assembly 65 includes a fixing piece 651 fixedly connected to the outer surface of the fixing rod 61. A guide rod 652 is fixedly connected to the lower end of the fixing piece 651. A limiting frame 653 is slidably connected to the outer surface of the guide rod 652. A pushing spring 654 is connected between the upper end of the limiting frame 653 and the lower end of the fixing piece 651. The lower end of the limiting frame 653 has a limiting groove 655 that matches the width of the reinforcing rod 64. The limiting groove 655 consists of four sets and is annular. The arrangement is arranged in an array; the axis of rotation 62 coincides with the axis of rotation 62, the lower end of reinforcing rod 64 is flush with the lower end of longitudinal rod 1, the guide rod 652 passes through the limiting frame 653, the limiting frame 653 is slidably connected to the guide rod 652 and the fixed rod 61, the two ends of the jacking spring 654 are fixedly connected to the fixed plate 651 and the limiting frame 653 respectively, and the rotation of reinforcing rod 64 is restricted by the limiting groove 655 on the outer surface of the limiting frame 653.

[0054] The user erects the scaffolding on the outside of the outer wall. After the erection is completed, one hand grasps the limiting bracket 653 and moves it upward. At this time, the pushing spring 654 will contract, and the limiting groove 655 will not jam the reinforcing rod 64. Then, the other hand grasps the rotating disk 63 and rotates it 90°. Then, both hands are slowly released at the same time. Under the reaction force of the pushing spring 654, the opening of the limiting groove 655 will just correspond to the position of the reinforcing rod 64 and engage. At this time, the reinforcing rod 64 can be extended out of the scaffolding range, which can make the stability of the entire scaffolding stronger.

[0055] This invention also includes a method for using scaffolding for exterior wall coating construction, the method specifically including the following steps:

[0056] a. Scaffolding erection: The user erects the scaffolding to the outside of the outer wall. After the erection is completed, one hand grasps the limiting bracket 653 and moves it upward. At this time, the pushing spring 654 will contract, and the limiting groove 655 will not jam the reinforcing rod 64. Then, the other hand grasps the rotating disk 63 and rotates it 90°. Then, both hands are slowly released at the same time. Under the reaction force of the pushing spring 654, the opening of the limiting groove 655 will just correspond to the position of the reinforcing rod 64 and engage.

[0057] b. Base treatment: Users repair and clean the exterior walls on the scaffolding until the walls are solid and clean;

[0058] c. Local repair: Apply putty to the damaged areas of the wall, and after it dries, sand it smooth.

[0059] d. Applying primer and dividing the surface: Apply a layer of primer. After the primer dries, use a level to attach grid-shaped masking tape to the wall. After the masking tape is attached, apply another layer of primer to the areas marked with masking tape.

[0060] e. Spraying: 1) Installation of auxiliary structure 5: Install the auxiliary structure 5 between the long shaft 3 at the standing platform 4 and a set of long shaft 3 on the long shaft 3 at that location. After installation, place the spray gun for spraying between the movable plate 544 and the fixed plate 542. At the same time, control the appropriate distance between the spray gun head and the wall. Then, control the movable plate 544 to move closer to the fixed plate 542 through the controller 545, so that the movable plate 544 cooperates with the fixed plate 542 to clamp the spray gun between the two.

[0061] 2) Spraying: Hold the spray gun and spray, then hold the spray gun and move it. At this time, the user pushes the spray gun to make the fixed plate 542 and the sliding part 541 move up and down along the connecting rod 51. The guide wheel 525 makes the entire connecting rod 51 wall move horizontally until the spraying of each area of ​​the wall is completed.

[0062] In summary, the working principle and usage process of this invention are as follows:

[0063] During installation, the scaffolding is first erected: the user erects the scaffolding to the outside of the outer wall. After the erection is completed, one hand grasps the limiting bracket 653 and moves it upward. At this time, the pushing spring 654 will contract, and the limiting groove 655 will not jam the reinforcing rod 64. Then, the other hand grasps the rotating disk 63 and rotates it 90°. Then, both hands are slowly released at the same time. Under the reaction force of the pushing spring 654, the opening of the limiting groove 655 will just correspond to the position of the reinforcing rod 64 and engage. At this time, the reinforcing rod 64 can be extended out of the scaffolding range, which can make the stability of the entire scaffolding stronger.

[0064] Next, the exterior wall surface is treated: the user repairs and cleans the exterior wall on the scaffold until the wall is solid and clean; then the wall is repaired: putty is applied to the damaged areas of the wall, and after it dries, it is sanded smooth; after sanding, the wall is primed and divided into sections: one layer of primer is applied, and after the primer dries, a grid pattern of masking tape is applied to the wall using a level; after the masking tape is applied, another layer of primer is applied to the masking tape.

[0065] Finally, the wall surface is sprayed: Before spraying, the auxiliary structure 5 is installed. The user can first turn the rotating sleeve 526 clockwise, causing the rotating sleeve 526 to drive the internal gear ring 527 to rotate, which in turn drives the internal gear 528 to rotate. Through the rotation of the internal gear 528, the movable rod 522 moves upward along the direction of the guide column 5230. At this time, the movable column 523 will also move upward, thereby causing the guide wheel 525 on the movable column 523 to interact with the guide wheel 525 on the connecting rod 51. After moving away, place the two sets of guide wheels 525 into the corresponding long shaft 3 on the foot-standing platform 4. Then rotate the rotating sleeve 526 in the opposite direction to move the movable rod 522 and the movable column 523 downwards until the guide wheel 525 corresponding to the fixed bracket 524 on the movable column 523 is in contact with the guide wheel 525 corresponding to the fixed bracket 524 on the connecting rod 51. At this time, the guide wheels 525 are in contact with the outer surface of the long shaft 3, and the upper guide wheel 525 is in a rolling connection with the long shaft 3.

[0066] Next, step on the pedal 536 with one foot to move the movable head 537 downward. At the same time, the sliding column 533 will move downward, causing the return spring 532 to be stretched. Then, gently rotate the connecting rod 51 so that the guide wheel 525 corresponds to the long shaft 3 under the foot. Then, gently release the pedal 536. Under the reverse force of the return spring 532, the guide wheel 525 will fit into the long shaft 3. At this time, the installation of the auxiliary structure 5 is completed.

[0067] Next, the user installs the spray gun on the clamping assembly 54. The user first installs the auxiliary structure 5 between the long shaft 3 at the standing platform 4 and a set of long shaft 3 on the long shaft 3 at that location. After installation, the user places the spray gun between the movable plate 544 and the fixed plate 542, while controlling the appropriate distance between the spray gun head and the wall. Then, the user controls the movable plate 544 to move closer to the fixed plate 542 through the controller 545, so that the movable plate 544 cooperates with the fixed plate 542 to clamp the spray gun between the two, thus completing the fixation of the spray gun position.

[0068] Next, the wall is sprayed. The user can directly hold the spray gun and spray. While holding the spray gun and moving it, the user pushes the spray gun to make the fixed plate 542 and the sliding part 541 move up and down along the connecting rod 51. The guide wheel 525 makes the entire connecting rod 51 move horizontally along the wall until all areas of the wall are sprayed. With the help of the auxiliary structure 5, the distance between the spray gun and the wall can be fixed, which can make the spraying effect better and avoid quality problems caused by different spraying distances.

[0069] It should be noted that during the process of fixing the spray gun to the clamping assembly 54, before fixing the spray gun, the user can also rotate the spraying angle of the spray gun as needed. Then, the controller 545 controls the small motor 546 to rotate, so that the lead screw 547 rotates to drive the movable plate 544 to approach the fixed plate 542 and clamp the spray gun. At this time, while ensuring stable control of the spraying distance, the spraying angle is fixed. Therefore, under this structure and method, the final sprayed wall surface effect is better, the quality is better, and the aesthetics are stronger.

[0070] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A scaffold, comprising longitudinal rods (1), a horizontal rod (2) and a long axis rod (3) are movably connected between two adjacent groups of the longitudinal rods (1) respectively, the outer surface of the horizontal rod (2) of different height is obliquely connected with an oblique rod (7), characterized in that, The outer surface of the long shaft rod (3) is movably provided with a standing table (4), the outer surface of the long shaft rod (3) is movably provided with an auxiliary structure (5), and the outer surface of the cross rod (2) is provided with a reinforcing structure (6); The auxiliary structure (5) comprises a connecting rod (51) movably arranged between the upper and lower two groups of long shaft rods (3), the upper and lower ends of the connecting rod (51) are respectively provided with a connecting assembly (52) and an extension assembly (53), and the outer surface of the connecting rod (51) is slidably connected with a clamping assembly (54); The connecting assembly (52) comprises a cylindrical groove (521) formed in the upper end of the connecting rod (51), the inner portion of the cylindrical groove (521) is slidably provided with a movable rod (522), the upper end of the movable rod (522) is fixedly connected with a movable column (523), the outer surface of the movable column (523) and the connecting rod (51) is fixedly connected with a fixed support (524), the inner portion of the fixed support (524) is rotatably connected with a guide wheel (525), the outer surface of the connecting rod (51) is rotatably connected with a rotating sleeve (526), the inner portion of the rotating sleeve (526) is fixedly connected with an internal gear ring (527), the outer surface of the movable rod (522) movably sleeved with an internal gear (528) corresponding to the internal gear ring (527), the inner wall of the connecting rod (51) is fixedly connected with a convex ring (529) near the rotating sleeve (526), the outer surface of the rotating sleeve (526) is provided with an annular notch matched with the convex ring (529), and the inner portion of the movable rod (522) is provided with a guide column (5230). The movable rod (522) moves up and down along the cylindrical groove (521), the internal gear ring (527) and the internal gear (528) are in meshing connection, the guide column (5230) is a regular quadrangular prism structure, the lower end of the guide column (5230) is fixedly connected with the connecting rod (51), the guide column (5230) and the movable rod (522) are in sliding connection, the rotating sleeve (526) is rotatably connected with the connecting rod (51) together with the internal gear ring (527), the internal gear (528) and the movable rod (522) are in threaded connection, the movable rod (522) is matched with the cylindrical groove (521), the movable rod (522) moves up and down through forward and reverse rotation of the rotating sleeve (526), the outer surface of the middle part of the guide wheel (525) is an arc structure matched with the long shaft rod (3), the number of guide wheels (525) in the inner portion of the fixed support (524) on the movable column (523) and the connecting rod (51) is two groups, and the guide wheel (525) and the long shaft rod (3) are in rolling connection.

2. The scaffold of claim 1, wherein, The reinforcing structure (6) includes a fixed rod (61) fixedly connected to the outer surface of the cross bar (2), a rotating shaft (62) rotatably connected to the inner shaft of the fixed rod (61), a rotating disc (63) fixedly connected to the outer surface of the rotating shaft (62) close to the upper end, a reinforcing rod (64) fixedly connected to the lower end of the rotating shaft (62), and a limiting assembly (65) arranged on the outer surface of the fixed rod (61) close to the reinforcing rod (64).

3. The scaffold of claim 2, wherein, The lengthening assembly (53) includes a guide groove (531) opened in the lower end of the connecting rod (51), a reset spring (532) arranged in the inner part of the guide groove (531), a sliding column (533) connected to the lower end of the reset spring (532), a strip-shaped groove (534) opened in the outer surface of the sliding column (533), a convex strip (535) fixedly connected to the inner wall of the connecting rod (51) and matched with the strip-shaped groove (534), a movable head (537) fixedly connected to the lower end of the sliding column (533), a stepping rod (536) fixedly connected to the outer surface of the movable head (537), a fixed support (524) fixedly connected to the outer surface of the movable head (537), and a guide wheel (525) rotatably connected to the inner part of the fixed support (524).

4. The scaffold of claim 3, wherein, The sliding column (533) and the connecting rod (51) are in sliding connection, the upper and lower ends of the reset spring (532) are fixedly connected with the connecting rod (51) and the sliding column (533) respectively, the sliding column (533) is guided to move up and down along the guide groove (531) through the strip-shaped groove (534) and the convex strip (535), and the number of the guide wheels (525) in the inner part of the fixed support (524) on the movable head (537) is one set.

5. The scaffold of claim 4, wherein, The clamping assembly (54) includes a sliding piece (541) movably sleeved on the outer surface of the connecting rod (51), a fixed plate (542) fixedly connected to one end of the sliding piece (541), a strip-shaped opening (543) opened in the outer surface of the fixed plate (542), a movable plate (544) slidably connected to the outer surface of the fixed plate (542), a small-sized motor (546) fixedly connected to one side of the outer surface of the fixed plate (542), a lead screw (547) rotatably connected to the other side of the outer surface of the fixed plate (542) and corresponding to the output end of the small-sized motor (546), a protective cover (548) movably connected to the outer surface of the fixed plate (542) and corresponding to the lead screw (547), and a controller (545) fixedly connected to the outer surface of the fixed plate (542).

6. The scaffold of claim 5, wherein, The sliding piece (541) is a transverse "T" shaped structure, the sliding piece (541) moves up and down along the connecting rod (51), the controller (545) is in conductive connection with the small motor (546), the controller (545) is used for controlling the forward and reverse rotation of the small motor (546), the rotation of the small motor (546) drives the rotation of the lead screw (547), the lower end of the movable plate (544) extends from the strip-shaped opening (543) to the lower side of the fixed plate (542), the lead screw (547) penetrates the outer surface of the movable plate (544), the movable plate (544) and the lead screw (547) are in threaded connection, and the rotation of the lead screw (547) realizes the sliding of the movable plate (544) along the length direction of the lead screw (547).

7. The scaffold of claim 6, wherein, The limiting assembly (65) includes a fixed sheet (651) fixedly connected to the outer surface of the fixed rod (61), the lower end of the fixed sheet (651) is fixedly connected with a guide rod (652), the outer surface of the guide rod (652) is slidably connected with a limiting frame (653), the upper end of the limiting frame (653) and the lower end of the fixed sheet (651) are connected with a jacking spring (654), and the lower end of the limiting frame (653) is provided with a limiting groove (655) matching the width of the reinforcing rod (64), the number of the limiting groove (655) is four groups and is arranged in a ring array.

8. The scaffold of claim 7, wherein, The lower end of the reinforcing rod (64) is flush with the lower end of the vertical rod (1), the guide rod (652) penetrates the limiting frame (653), the limiting frame (653) is slidably connected with the guide rod (652) and the fixed rod (61), and the two ends of the jacking spring (654) are fixedly connected with the fixed sheet (651) and the limiting frame (653) respectively, the rotation of the reinforcing rod (64) is limited by the limiting groove (655) on the outer surface of the limiting frame (653).

9. A method of performing an exterior wall painting work using the scaffold of claim 8, characterized by, The method specifically comprises the following steps: a. erecting the scaffold: the user erects the scaffold to the outside of the outer wall, after the erection is completed, one hand holds the limiting frame (653) and moves upward, at this time, the jacking spring (654) is contracted, meanwhile, the limiting groove (655) does not jam the reinforcing rod (64), then the other hand holds the rotating disc (63) and rotates 90°, then both hands are slowly released at the same time, under the reaction force of the jacking spring (654), the opening of the limiting groove (655) is just matched with the position of the reinforcing rod (64) to be clamped; b. base treatment: the user repairs and cleans the local part of the outer wall on the scaffold until the wall is solid and clean; c. local repair: the local damaged part of the wall is painted with putty powder, and is polished flat after drying; d. primer painting, gridding: a layer of primer is painted, the level meter is used to paste the grid-shaped masking paper on the wall after the primer is dried, and a layer of primer is painted again on the masking paper after the masking paper is pasted. e. Spraying: 1) auxiliary structure (5) installation, the auxiliary structure (5) is installed in the long shaft rod (3) at the standing table (4) and between a group of long shaft rods (3) on the long shaft rod (3), after the installation, the spraying gun is placed between the movable plate (544) and the fixed plate (542), and the gun head is controlled to a suitable distance from the wall, then the movable plate (544) is controlled to approach the fixed plate (542) through the controller (545), so that the movable plate (544) cooperates with the fixed plate (542) to clamp the spraying gun therebetween; 2) spraying, holding the spraying gun to spray, and then holding the spraying gun to move, at this time, the fixed plate (542) moves up and down along the connecting rod (51) by pushing the spraying gun by the user, the whole connecting rod (51) moves horizontally along the wall through the guide wheel (525), until each area of the wall is sprayed to completion.

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