Assembled wall reserved hole blocking structure and method thereof

Abstract

The present invention belongs to the technical field of building construction, and specifically relates to an assembled wall reserved hole sealing structure and method thereof, comprising a prefabricated wall, a reserved hole is opened on the surface of the prefabricated wall, a pre-buried pipe coaxial with the reserved hole is arranged in the reserved hole, a support plate is connected to the end of the pre-buried pipe facing the air conditioner outdoor unit, the support plate is arranged outside the reserved hole, and a plurality of sliders are slidably connected to the surface of the support plate, each slider is fixedly connected to a clamp plate on the side facing the axis of the support plate, a slider is connected to the surface of each clamp plate on the side away from the air conditioner outer pipe, and each slider slides radially along the support plate, a thread is opened on the surface of each slider on the side away from the clamp plate, and each slider is commonly threadedly connected to a first protective cover, the first protective cover is sleeved on the surface of the empty sleeve outer pipe, and the technical scheme of the present invention can effectively solve the problem of poor sealing between the reserved hole opened on the surface of the building wall and the air conditioner outer pipe at present, and can effectively isolate external rainwater and airflow.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and in particular relates to an assembled wall reserved hole blocking structure and a method thereof. Background Art

[0002] Prefabricated building walls are an important part of prefabricated buildings. They usually refer to prefabricated structures that are transported to the construction site for assembly after factory assembly line production. Prefabricated building walls can be divided into two categories: load-bearing walls and non-load-bearing walls. Load-bearing walls include solid load-bearing walls, sandwich insulation external load-bearing walls, double-sided overlapping load-bearing walls, etc., while non-load-bearing walls include external wall panels, non-load-bearing internal partition walls, etc. Among them, in order to meet the needs of air-conditioning pipes running through prefabricated walls, existing prefabricated building walls usually have reserved openings or holes directly opened on the wall surface. However, opening holes in the wall will affect the stability of the internal structure and its strength, and the reserved hole size cannot completely match the pipe, resulting in a gap between the hole and the pipe. At present, most of them are filled with concrete, plasticine or other flexible objects, which is not only time-consuming and labor-intensive, but also increases safety hazards (for high-rise buildings). To solve this technical problem, for example, a Chinese patent discloses an assembled building wall (patent publication number: CN117947889A), in which a flexible rubber sleeve that matches the outer wall of the pipe is fixed between a driven ring and the inner wall of the slot hole, and the driven ring is controlled to rotate so that the flexible rubber sleeve is in a curled state, thereby preventing outdoor dust or foreign matter from entering the room through the gap between the pipe and the slot, thereby achieving a sealing effect on the reserved hole for the air-conditioning pipe.

[0003] Although the above technical solution can seal by rotating and curling a flexible rubber sleeve around the outside of the pipe, the outer pipe of the air conditioner passing through the wall is usually composed of refrigerant pipes, cables and drain pipes with water-stop tape wrapped around the outer surface. When these outer pipes pass through the reserved holes, they will stick to the surface under the action of gravity, and the cross-section of the outer pipe of the air conditioner composed of multiple pipes is not circular. These will cause uneven force on the flexible rubber sleeve after curling and winding, and cracks will appear after being affected by the external environment for a long time, affecting the sealing effect. Summary of the invention

[0004] In view of this, the purpose of the present invention is to provide an assembled wall reserved hole sealing structure and method thereof to solve the problem of poor sealing between the reserved holes opened on the surface of the building wall and the outer pipe of the air conditioner.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A prefabricated wall reserved hole blocking structure comprises a prefabricated wall, wherein a reserved hole for an air conditioner outer pipe to pass through is opened on the surface of the prefabricated wall, the reserved hole is gradually inclined downward toward one end of the air conditioner outer unit, a pre-buried pipe coaxial with the reserved hole is arranged in the reserved hole, and a support plate is connected to the end of the pre-buried pipe facing the air conditioner outer unit, the support plate is arranged outside the reserved hole, and a plurality of sliders are slidably connected to the surface of the support plate, all the sliders are evenly spaced around the axis of the support plate, and each slider slides radially along the support plate, and each slider moves toward the support plate. An arc-shaped clamping plate is fixedly connected to one side of the support plate axis, wherein each clamping plate jointly clamps the outer tube of the air conditioner and fixes it near the axis of the embedded tube under the action of the slider, and a movable block is elastically slidably connected to the surface of the side of each clamping plate away from the outer tube of the air conditioner, and each movable block slides radially along the support plate, and a thread is provided on the surface of the side of each movable block away from the clamping plate, and all the movable blocks are commonly threadedly connected to a first protective cover, which is sleeved on the surface of the empty outer tube and covers one end of the embedded tube close to the outdoor unit of the air conditioner.

[0007] Furthermore, the end of the embedded pipe close to the air conditioner indoor unit is detachably connected to a second protective cover, the second protective cover is sleeved on the surface of the air conditioner outer pipe and covers the end of the embedded pipe close to the air conditioner indoor unit, and each of the splint, the first protective cover, and the second protective cover is provided with a flexible filling block on the side surface that contacts the air conditioner outer pipe.

[0008] Furthermore, the inner ring surface of the embedded tube is slidably connected with a movable ring that moves along its axis, one end of the movable ring is fixedly connected with a ring-shaped airbag, the airbag is coaxially arranged with the embedded tube and is filled with gas, one end of the airbag away from the movable ring is fixed to the inner wall of the embedded tube and is provided with an expansion portion that protrudes toward the outer tube of the air conditioner, the inner ring of the movable ring is threadedly connected with a rotating cylinder coaxial with the embedded tube, the rotating cylinder is rotatably arranged in the embedded tube, and one end of the rotating cylinder is detachably connected to the second protective cover.

[0009] Furthermore, the outer ring surface of the rotating cylinder and the inner ring surface of the embedded tube are arranged at intervals, the movable ring and the airbag are arranged in the gap between the rotating cylinder and the embedded tube, and the surface of the expansion part on the side in contact with the air conditioner outer tube is provided with a plurality of anti-slip grooves protruding outward.

[0010] Furthermore, the slider is provided with three pieces, one of which is arranged at the lower quadrant point of the support plate, and a limiting piece is provided between the slider and the support plate.

[0011] A method for sealing a pre-set hole in an assembled wall is applied in the above-mentioned pre-set hole sealing structure in an assembled wall, and the implementation steps are as follows:

[0012] S1. Transport the prefabricated wall made in the factory to the construction site and assemble it to the designated location. During assembly, the downward end of the embedded pipe is placed on the side close to the air conditioner outdoor unit;

[0013] S2. When installing the air conditioner outer tube, first remove the first protective cover and the second protective cover, and adjust the positions of the three sliders and the clamping plates so that the air conditioner outer tube can easily pass through the embedded tube. The slider located at the lower quadrant point of the support plate is adjusted by the limiter, and the clamping plates matched with the sliders lift the air conditioner outer tube to a coaxial position with the embedded tube. Then adjust the remaining two sliders, and make the corresponding clamping plates abut against the surface of the air conditioner outer tube.

[0014] S3, installing the first protective cover and the second protective cover, after the second protective cover is put on the outer surface of the air conditioner outer tube, the air conditioner outer tube is lifted to a position coaxial with the embedded tube, and then the second protective cover is fixedly connected to the rotating drum;

[0015] S4. Continue to rotate the second protective cover in the clockwise direction until it encounters resistance and cannot continue to rotate. Then, you can let go and the installation of the air conditioner outer pipe is completed.

[0016] The beneficial effects of the present invention are:

[0017] 1. The present invention lays embedded pipes in prefabricated walls. When the outer pipe of the air conditioner is placed in a designated position, the outer pipe of the air conditioner can be fixed at the current position by a plurality of sliders, and the gap between the outer pipe of the air conditioner and the embedded pipe is covered by a first protective cover and a second protective cover, thereby achieving a first layer of waterproof, dustproof and anti-debris effects. The second protective cover drives the rotating cylinder to rotate, so that the expansion part of the airbag is deformed and abuts against the surface of the outer pipe of the air conditioner, further covering the gap between the outer pipe of the air conditioner and the embedded pipe, thereby achieving a second layer of windproof, waterproof, dustproof and anti-debris effects. Compared with the prior art, the present invention is not only beautiful and reliable, but also low in price and easy to operate.

[0018] Other advantages, objectives and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art may be taught from the practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration:

[0020] Figure 1 Schematic diagram of the prefabricated wall and air conditioner outer pipe installation structure of the present invention Figure 1 ;

[0021] Figure 2Schematic diagram of the prefabricated wall and air conditioner outer pipe installation structure of the present invention Figure 2 ;

[0022] Figure 3 It is a partial cross-sectional view of the prefabricated wall and the air conditioner outer pipe of the present invention;

[0023] Figure 4 for Figure 3 Sectional view at AA;

[0024] Figure 5 The first protective cover and the second protective cover of the present invention explode Figure 1 ;

[0025] Figure 6 The first protective cover and the second protective cover of the present invention explode Figure 2 ;

[0026] Figure 7 It is a schematic diagram of the inflation state of the expansion part of the present invention.

[0027] The following are marked in the accompanying drawings:

[0028] 1 prefabricated wall, 2 embedded pipe, 3 support plate, 4 slider, 5 clamping plate, 6 movable block, 7 first protective cover, 8 second protective cover, 9 flexible filling block, 10 movable ring, 11 air bag, 12 expansion part, 13 rotating cylinder, 14 air conditioning outer pipe. DETAILED DESCRIPTION

[0029] like Figure 1 to Figure 7 As shown,

[0030] An assembled wall reserved hole blocking structure includes a prefabricated wall 1, wherein the surface of the prefabricated wall 1 is provided with a reserved hole for an air conditioner outer pipe 14 to pass through, and the air conditioner outer pipe 14 is composed of a refrigerant pipe, a cable and a drain pipe, and a waterproof tape is wound around the outer surface (combined with Figure 2As shown in the figure, the reserved hole is gradually inclined downward toward one end of the air conditioner outdoor unit, and a coaxial embedded pipe 2 is arranged in the reserved hole. A support plate 3 is integrally formed at one end of the embedded pipe 2 facing the air conditioner outdoor unit. The diameter of the support plate 3 is larger than that of the embedded pipe 2 and is arranged outside the reserved hole. Three sliders 4 are slidably connected to the surface of the support plate 3. All sliders 4 are evenly spaced around the axis of the support plate 3, and each slider 4 slides radially along the support plate 3. Each of the sliders 4 is fixedly connected to an arc-shaped clamping plate 5 on one side facing the axis of the support plate 3. Each clamping plate 5 is stretched along the axis direction of the embedded pipe 2, wherein each clamping plate 5 moves toward the axis direction of the support plate 3 under the action of the slider 4 to jointly clamp the air conditioner outer pipe 14. And fix it near the axis of the embedded pipe 2 (the air-conditioning outer pipe 14 is approximately coaxial with the embedded pipe 2, because the cross-section of the air-conditioning outer pipe 14 is not a regular circle), and each of the splints 5 is elastically slidably connected to a movable block 6 on the side surface away from the air-conditioning outer pipe 14 (a spring is provided between the movable block 6 and the splint 5, which is not shown in the figure). Under normal circumstances, most of the surface of the movable block 6 will extend out of the splint 5 under the action of the spring, and each movable block 6 slides radially along the support plate 3. A thread is provided on the side surface of each movable block 6 away from the splint 5, and all the movable blocks 6 are commonly threadedly connected to a first protective cover 7, which is sleeved on the surface of the air-conditioning outer pipe and covers one end of the embedded pipe 2 close to the air-conditioning outdoor unit;

[0031] One of the sliders 4 is arranged at the lower quadrant of the support plate 3, and a stopper is arranged between the slider and the support plate 3. The stopper fixes the slider 4 to the surface of the support plate 3 by bolts and nuts (combined with Figure 5 As shown in the figure, the first protective cover 7 is composed of two mirror-image shells fixed by screw holes, and the cross-section of the first protective cover 7 is stepped, wherein the surface with the smallest diameter faces the direction of the air conditioner outdoor unit and abuts against the surface of the air conditioner outer pipe 14, the surface with the larger diameter is provided with a thread matching the movable block 6, and the surface with the largest diameter covers the entire support plate 3.

[0032] As shown in the figure, first pass one end of the air-conditioning outer tube 14 through the embedded pipe 2 and the supporting plate 3, and connect it to the air-conditioning outdoor unit, then adjust the positions of the three sliders 4, first move the slider 4 located at the bottom, and support the air-conditioning outer tube 14 to a position approximately coaxial with the embedded pipe 2 through the clamping plate 5, then fix the slider 4 at the current position through bolts and nuts, and then adjust the positions of the other two sliders 4 so that one side surface of each clamping plate 5 abuts against the surface of the air-conditioning outer tube 14, and then put the first protective cover 7 on the surface of the air-conditioning outer tube 14, and threadedly connect it with the three movable blocks 6 until one side surface of the first protective cover 7 abuts against the surface of the prefabricated wall 1. Since the three movable blocks 6 are all slidably penetrated on the corresponding surfaces of the clamping plates 5, even if the three clamping plates 5 abut against the surface of the air-conditioning outer tube 14 that is not a regular circle, it can be corrected by the different expansion and contraction amounts of the three movable blocks 6 so that the first protective cover 7 The protective cover 7 can be threadedly connected to the surfaces of the three movable blocks 6 at the same time, and because the movable blocks 6 slide elastically on the clamping plates 5, when the first protective cover 7 is threadedly connected to the three movable blocks 6, the springs between each movable block 6 and the clamping plates 5 will be compressed to different degrees, and each clamping plate 5 can apply pressure to the air-conditioning outer pipe 14. The three clamping plates 5 work together to stabilize the air-conditioning outer pipe 14, and one side surface of the first protective cover 7 is against the surface of the prefabricated wall 1, and covers the entire support plate 3 and the parts connected to its surface, which can effectively prevent external rainwater, dust or other foreign matter from entering the embedded pipe 2, effectively improving the sealing between the air-conditioning outer pipe 14 and the embedded pipe 2, and the embedded pipe 2 is tilted downward toward the direction of the air-conditioning outdoor unit. Even if some rainwater passes through the gap between the first protective cover 7 and the prefabricated wall 1 and enters the embedded pipe 2, it will flow out under the action of gravity, effectively improving the waterproof effect.

[0033] In this embodiment, the end of the embedded pipe 2 close to the air conditioner indoor unit is detachably connected to the second protective cover 8, and the detachable connection method adopts a plastic buckle (existing technology, no need to elaborate on it). The second protective cover 8 is sleeved on the surface of the air conditioner outer pipe 14 and covers the end of the embedded pipe 2 close to the air conditioner indoor unit. The second protective cover 8 is also composed of two mirror-image shells fixed by screws and screw holes. Each of the splints 5, the first protective cover 7, and the second protective cover 8 is provided with a flexible filling block 9 on the side surface that contacts the air conditioner outer pipe 14. The flexible filling block 9 can be made of existing known materials such as sponge or rubber.

[0034] The flexible filling block 9 can not only reduce the damage to the water-stop tape wrapped around the air-conditioning outer pipe 14, but also further fill the gap between the first protective cover 7, the second protective cover 8, the splint 5 and the air-conditioning outer pipe 14 by squeezing the flexible filling block 9 and deforming it, thereby improving the sealing effect against dust, small animals and other debris.

[0035] In the present embodiment, the inner ring surface of the embedded tube 2 is slidably connected with a movable ring 10 that moves along its axis, and one end of the movable ring 10 is fixedly connected with an annular airbag 11, the airbag 11 is coaxially arranged with the embedded tube 2, and the airbag 11 is filled with gas, the end of the airbag 11 away from the movable ring 10 is fixed to the inner wall of the embedded tube 2 and is provided with an expansion portion 12 protruding toward the air conditioner outer tube 14, the inner ring of the movable ring 10 is threadedly connected with a rotating cylinder 13 coaxial therewith, the rotating cylinder 13 is rotatably arranged in the embedded tube 2, and one end of the rotating cylinder 13 is detachably connected to the second protective cover 8 by means of a plastic buckle and a card slot; the outer ring surface of the rotating cylinder 13 is spaced apart from the inner ring surface of the embedded tube 2, the movable ring 10 and the airbag 11 are both arranged at the gap between the rotating cylinder 13 and the embedded tube 2, and the side surface of the expansion portion 12 in contact with the air conditioner outer tube 14 is provided with a plurality of anti-slip patterns protruding outward.

[0036] Combination Figure 4 , Figure 5 As shown, after the second protective cover 8 is sleeved on the surface of the air-conditioning outer tube 14 and fixedly connected with one end of the rotating cylinder 13, the second protective cover 8 can limit the air-conditioning outer tube 14 and support a section of the surface of the air-conditioning outer tube 14 close to the air-conditioning indoor unit to a position approximately coaxial with the pre-buried tube 2. At this time, the air-conditioning outer tube 14 is mounted in the pre-buried tube 2 under the action of the second protective cover 8, the first protective cover 7 and the three clamping blocks. The pre-buried tube 2 is approximately coaxial with the air-conditioning outer tube 14. Then, the second protective cover 8 is rotated clockwise. The second protective cover 8 drives the movable ring 10 to move toward the expansion part 12 of the airbag 11 through the thread. Since the airbag 11 is arranged between the rotating cylinder 13 and the pre-buried tube 2, the gas in the airbag 11 flows to the expansion part 12 under the squeezing of the movable ring 10. When the movable ring 10 abuts against the airbag 11 and gets closer to the expansion part 12 under the action of the second protective cover 8, the gas in the airbag 11 will flow more to the expansion part 12. The surface of one side of the expansion part 12 expands toward the air-conditioning outer tube 14, and the surface of the expansion part 12 abuts against the surface of the air-conditioning outer tube 14, and perfectly fits the surface of the air-conditioning outer tube 14 in the form of surface deformation (even if the cross-section of the air-conditioning outer tube 14 is approximately circular, the expansion part 12 can also perfectly fit on its surface), completely blocking part of the annular gap between the air-conditioning outer tube 14 and the embedded tube 2, which can effectively isolate the air flow at both ends of the embedded tube 2, further strengthen the sealing effect of the embedded tube 2, and completely solve the problem of dust, debris and some noise passing through the two ends of the embedded tube 2; and, the surface of the expansion part 12 in contact with the air-conditioning outer tube 14 is provided with a plurality of anti-slip grooves, which can effectively improve the friction between the expansion part 12 and the surface of the air-conditioning outer tube 14 after deformation, improve the adhesion of the expansion part 12, and prevent the surface of the expansion part 12 from sliding after contacting the air-conditioning outer tube 14, and not being able to fit the surface of the air-conditioning outer tube 14 100%.

[0037] A method for sealing a pre-set hole in an assembled wall is applied in the above-mentioned pre-set hole sealing structure in an assembled wall, and the implementation steps are as follows:

[0038] S1, transport the prefabricated wall 1 made in the factory to the construction site and assemble it to the designated position. During assembly, the downward end of the embedded pipe 2 is placed on the side close to the air conditioner outdoor unit;

[0039] S2. When installing the air conditioner outer tube 14, first remove the first protective cover 7 and the second protective cover 8, and adjust the positions of the three sliders 4 and the clamping plates 5 so that the air conditioner outer tube 14 can easily pass through the embedded tube 2. The slider 4 located at the lower quadrant point of the support plate 3 is adjusted by the limiter, and the clamping plates 5 matched therewith lift the air conditioner outer tube 14 to a coaxial position with the embedded tube 2. Then adjust the remaining two sliders 4, and make the corresponding clamping plates 5 abut against the surface of the air conditioner outer tube 14.

[0040] S3, installing the first protective cover 7 and the second protective cover 8, after the second protective cover 8 is sleeved on the outer surface of the air conditioner outer tube 14, the air conditioner outer tube 14 is lifted to a position coaxial with the embedded tube 2, and then the second protective cover 8 is fixedly connected to the rotating cylinder 13;

[0041] S4. Continue to rotate the second protective cover 8 in the clockwise direction until it encounters resistance and cannot continue to rotate. Then, release the cover and the installation of the air conditioner outer pipe 14 is completed.

[0042] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. An assembled wall reserved hole blocking structure, comprising a prefabricated wall (1), wherein a reserved hole for an air conditioner outer pipe (14) to pass through is opened on the surface of the prefabricated wall (1), Features: The reserved hole is arranged to be gradually inclined downward toward one end of the air conditioner outdoor unit, and a coaxial embedded pipe (2) is arranged in the reserved hole. The embedded pipe (2) is connected to a support plate (3) at one end facing the air conditioner outdoor unit. The support plate (3) is arranged outside the reserved hole, and a plurality of sliders (4) are slidably connected to the surface of the support plate (3). All the sliders (4) are evenly spaced around the axis of the support plate (3), and each slider (4) slides radially along the support plate (3). Each slider (4) is fixedly connected to an arc-shaped clamping plate (5) on one side facing the axis of the support plate (3), wherein each clamping plate The plates (5) jointly clamp the air conditioner outer tube (14) under the action of the slider (4) and fix it at the axis close to the embedded tube (2); the surface of each clamping plate (5) on the side away from the air conditioner outer tube (14) is elastically slidably connected to a movable block (6), and each movable block (6) slides radially along the support plate (3); the surface of each movable block (6) on the side away from the clamping plate (5) is provided with a thread, and all the movable blocks (6) are commonly threadedly connected to a first protective cover (7); the first protective cover (7) is sleeved on the surface of the air conditioner outer tube and covers one end of the embedded tube (2) close to the air conditioner outdoor unit.

2. The prefabricated wall reserved hole blocking structure according to claim 1, Features: The end of the embedded pipe (2) close to the air conditioner indoor unit is detachably connected to a second protective cover (8), the second protective cover (8) is sleeved on the surface of the air conditioner outer pipe (14) and covers the end of the embedded pipe (2) close to the air conditioner indoor unit, and a flexible filling block (9) is provided on the surface of each of the clamping plate (5), the first protective cover (7) and the second protective cover (8) on the side in contact with the air conditioner outer pipe (14).

3. The prefabricated wall reserved hole blocking structure according to claim 2, Features: The inner ring surface of the embedded tube (2) is slidably connected to a movable ring (10) that moves along its axis. One end of the movable ring (10) is fixedly connected to an annular airbag (11). The airbag (11) is coaxially arranged with the embedded tube (2) and is filled with gas. The end of the airbag (11) away from the movable ring (10) is fixed to the inner wall of the embedded tube (2) and is provided with an expansion portion (12) that protrudes toward the outer tube (14) of the air conditioner. The inner ring of the movable ring (10) is threadedly connected to a rotating cylinder (13) coaxial with the movable ring. The rotating cylinder (13) is rotatably arranged in the embedded tube (2), and one end of the rotating cylinder (13) is detachably connected to the second protective cover (8).

4. The prefabricated wall reserved hole blocking structure according to claim 3, Features: The outer ring surface of the rotating cylinder (13) and the inner ring surface of the embedded tube (2) are arranged at intervals, the movable ring (10) and the air bag (11) are arranged in the gap between the rotating cylinder (13) and the embedded tube (2), and the surface of the side of the expansion part (12) in contact with the air conditioner outer tube (14) is provided with a plurality of anti-slip patterns protruding outwards.

5. The prefabricated wall reserved hole blocking structure according to claim 4, Features: The sliding block (4) is provided with three pieces, one of which is arranged at the lower quadrant point of the supporting plate (3) and a limiting piece is provided between the sliding block and the supporting plate (3).

6. A method for sealing a reserved hole in an assembled wall. Features: Applied in the prefabricated wall reserved hole blocking structure described in claim 5, the implementation steps are as follows: S1. The prefabricated wall (1) manufactured in the factory is transported to the construction site and assembled to the designated position. During the assembly, the downward end of the embedded pipe (2) is placed on the side close to the air conditioner outdoor unit; S2. When installing the air conditioner outer tube (14), first remove the first protective cover (7) and the second protective cover (8), and adjust the positions of the three sliders (4) and the clamping plate (5) so that the air conditioner outer tube (14) can easily pass through the embedded tube (2), wherein the slider (4) located at the lower quadrant point of the support plate (3) is adjusted by the limiter, and the clamping plate (5) matched with it lifts the air conditioner outer tube (14) to a coaxial position with the embedded tube (2), and then adjust the remaining two sliders (4) so ​​that the corresponding clamping plates (5) are in contact with the surface of the air conditioner outer tube (14); S3, installing the first protective cover (7) and the second protective cover (8), sleeve the second protective cover (8) onto the outer surface of the air conditioner outer tube (14), lift the air conditioner outer tube (14) to a position coaxial with the embedded tube (2), and then fix the second protective cover (8) to the rotating cylinder (13); S4. Continue to rotate the second protective cover (8) in the clockwise direction until it encounters resistance and cannot continue to rotate. Then, release the cover and the installation of the air conditioner outer pipe (14) is completed.

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