Drilling splash-proof device for air conditioner installation

By designing a splash-proof device for drilling holes for air conditioner installation, the problem of dust splashing during inclined drilling of existing devices has been solved, realizing the automatic collection of fly ash and water-ash mixture, improving drilling efficiency and environmental cleanliness.

CN121246046APending Publication Date: 2026-01-02HUANGSHI XIANDA REFRIGERATION ENG CO LTD
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Patent Information

Application Number
CN202511819279.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-04
Publication Date
2026-01-02

AI Technical Summary

Technical Problem

Existing handheld water drills for air conditioner installation often cause dust to fly out when drilling at an angle.

Method used

A splash-proof device for drilling holes for air conditioner installation was designed, including a connecting module, a collection module, and a guide component. The device is kept in close contact with the wall by the fitting component, and the rotating cutting of the drill pipe is accommodated by the elastic tube. The collection module automatically collects fly ash or water-ash mixture, and the guide component prevents the drill pipe from tilting too much.

Benefits of technology

It effectively prevents dust from splashing during inclined drilling, automatically collects fly ash and water-ash mixtures, and improves drilling efficiency and environmental cleanliness.

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Abstract

The invention relates to the technical field of drilling splash-proof, and provides a drilling splash-proof device for air conditioner installation, which comprises a connecting module and a collecting module connected with one end of the connecting module, the connecting module comprises a connecting pipe, one end of the connecting pipe is connected with a driving part, and a connecting structure is connected between the connecting pipe and the driving part. One end of the connecting pipe is connected with an attaching assembly, the output end of the driving part is fixedly connected with a drilling pipe, and the inner wall of the connecting pipe is connected with a guide assembly corresponding to the drilling pipe; the attaching assembly is used for keeping tight connection between one end of the connecting pipe and the wall and meeting the requirement for inclined drilling of the drilling pipe. The collecting module is used for being matched with the attaching assembly to collect the drilled fly ash or the water-ash mixture. By means of the technical scheme, the problems that when an existing drilling splash-proof device for installation of the handheld water drill air conditioner is used, inclined drilling is needed when a wall body is drilled at the beginning, and dust splashing is likely to be caused when the existing splash-proof device drills in an inclined mode are solved.
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Description

Technical Field

[0001] This invention relates to the field of drilling splash prevention technology, specifically to a drilling splash prevention device for air conditioner installation. Background Technology

[0002] In the fields of building decoration and air conditioning installation, drilling holes in walls is an indispensable basic operation. Especially during the installation of split-type air conditioners, a through-wall hole needs to be drilled in both the indoor and outdoor walls to connect refrigerant copper pipes, drain pipes, and power cords. Currently, construction workers commonly use specialized impact drills or water drills equipped with water-cooling systems to improve drilling efficiency and extend drill bit life.

[0003] However, this efficient drilling method is accompanied by a long-standing and unresolved problem—the splashing of mud and water during the drilling process. During drilling, cooling water rapidly mixes with the brick mortar and sand drilled from the wall, forming a viscous slurry. Due to the high-speed rotation and impact of the drill bit, this slurry splashes with tremendous kinetic energy from the drilling point in all directions, causing serious pollution to the indoor environment; currently, this is mostly addressed through… According to the authorized announcement number CN114536568B, a drilling anti-splash device for installing indoor air conditioners in buildings is provided. This invention allows water in a water tank to be sprayed out through a disc nozzle during drilling, thereby spraying water onto the drilled hole on the wall. In this way, the water absorbs the dust, thus preventing dust from splashing out. However, when using the existing handheld water drill for air conditioner installation, the drilling anti-splash device requires tilting the drill at the beginning, and the existing anti-splash device is prone to dust splashing when tilting the drill. Therefore, we propose an anti-splash device for air conditioner installation. Summary of the Invention

[0004] This invention proposes a splash-proof device for drilling holes for air conditioner installation, which solves the problem mentioned in the background art that existing handheld water drill splash-proof devices for air conditioner installation are prone to dust splashing when drilling into the wall at an angle.

[0005] The technical solution of the present invention is as follows: A splash-proof device for drilling holes for air conditioner installation includes a connecting module and a collection module connected to one end of the connecting module. The connecting module includes a connecting pipe, one end of which is connected to a driving part. A connecting structure is connected between the connecting pipe and the driving part. One end of the connecting pipe is connected to a fitting component. The output end of the driving part is fixedly connected to a drilling pipe. A guide component is connected to the inner wall of the connecting pipe at the location corresponding to the drilling pipe. The fitting assembly is used to maintain a tight connection between one end of the connecting pipe and the wall, and to accommodate drilling when the drilling pipe is tilted. The collection module is used in conjunction with the bonding component to collect the fly ash or water-ash mixture drilled out; The connecting structure is used to achieve a tight connection between the connecting pipe and the drive unit; The guide assembly is used to prevent the rotating drill pipe from tilting at an excessive angle.

[0006] As a further technical solution of the present invention, a hand-held part is fixedly connected to the lower end of the drive unit, an extension rod is fixedly connected to the rear end of the drive unit, and a water injection pipe is fixedly connected to the lower end of the drive unit. The water injection pipe is used to connect to the water source during drilling.

[0007] As a further technical solution of the present invention, the bonding assembly includes an elastic tube fixedly connected to one end of the connecting tube, a guide tube fixedly connected to one end of the elastic tube, a bonding plate fixedly connected to one side surface of the guide tube, bonding adhesive adhered to the outer surface of the bonding plate, an air inlet pipe fixedly connected to the upper surface of the guide tube, an exhaust pipe fixedly connected to the lower surface of the guide tube, a connector rotatably connected to the lower end of the exhaust pipe, and a flexible hose rotatably connected to the lower end of the connector.

[0008] As a further technical solution of the present invention, the collection module includes a collection box for storing waste, a fixed pipe is fixedly connected to the upper end of the collection box, a movable pipe is slidably connected inside the fixed pipe, a float plate is fixedly connected to the surface of the movable pipe near the lower end, a fan is fixedly connected to the outer surface of the fixed pipe, and a balance valve is fixedly connected to the upper end of the collection box.

[0009] As a further technical solution of the present invention, the guide assembly includes a connecting ring fixedly connected to the inner wall surface of the connecting pipe, a rotating shaft rotatably connected to the surface of the connecting ring, and guide wheels rotatably connected to both ends of the rotating shaft.

[0010] As a further technical solution of the present invention, the connecting structure includes flanges that are fixedly connected to the outer surfaces of the connecting pipe and the driving part, respectively. A recessed ring is provided on the inner side surface of the flange. Connecting holes are provided on the outer surfaces of the two sets of flanges. A sealing ring is provided between the two sets of recessed rings. The sealing ring includes an outer ring and an inner ring. A positioning ring is connected between the outer ring and the inner ring.

[0011] As a further technical solution of the present invention, the elastic tube is a flexible and rotatable tube structure, the air inlet tube is used to prevent negative pressure from appearing inside the guide tube, the adhesive is an adhesive structure that can be pasted and is easy to peel off, the exhaust pipe is connected to the inside of the guide tube, the connector is connected and fixed to the exhaust pipe by threads, the connector and the hose are rotatably connected, and the lower end of the exhaust pipe is connected to the hose.

[0012] As a further technical solution of the present invention, the fixed pipe runs through the collection box, the inside of the collection box is used to store filtered water, the outer diameter of the movable pipe matches the inner diameter of the fixed pipe, the movable pipe can move up and down along the fixed pipe, and the floating plate is made to float or move down by the action of filtered water, one end of the blower is fixedly connected to the fixed pipe through a pipe, and the outlet pipe is set with an inclined structure, and the balance valve is used to balance the pressure inside the collection box.

[0013] As a further technical solution of the present invention, the inner diameter of the connecting ring is larger than the outer diameter of the drilling tube, the rotating shaft passes through the connecting ring, the rotating shaft forms a rotatable connection with the connecting ring through a bearing, and the guide wheel forms a rotatable connection with the rotating shaft through a bearing.

[0014] As a further technical solution of the present invention, the two sets of recessed rings are matched with the sealing rings, the two sets of flanges and connecting holes are matched, the positioning rings in the cross section of the sealing ring are distributed in a ring array, the inner ring has a cavity structure inside, the cavity cross section formed by the inner ring, positioning ring and outer ring is a trapezoidal structure, and the two sets of flanges are connected and fixed by bolts and nuts.

[0015] The working principle and beneficial effects of this invention are as follows: 1. In this invention, the bonding component allows the bonding board to fit tightly against the wall during use. At the same time, the elastic tube can accommodate the rotational cutting of the drilling tube and allow the drilling tube to be tilted for cutting, thereby achieving a better hole opening effect.

[0016] 2. In this invention, through the combined action of the collection module and the bonding component, in addition to fulfilling the function of the bonding component, the fly ash or water-ash mixture generated during the drilling process can also be automatically collected during use, thereby collecting the fly ash or water-ash mixture into the inside of the collection box, thus collecting the fly ash or water-ash mixture generated during drilling and avoiding splashing. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1This is a schematic diagram of the structure of the air conditioner installation drilling anti-splash device of the present invention together with a water drilling machine; Figure 2 This is a partial structural diagram of the connecting pipe of the present invention cut open; Figure 3 This is a schematic diagram of the structure of the water drilling rig of the present invention; Figure 4 This is a partial structural diagram of the bonding component of the present invention cut open; Figure 5 This is a partial structural diagram of the collection module of the present invention. Figure 6 For the present invention Figure 5 A schematic diagram of the local structure from another perspective; Figure 7 For the present invention Figure 2 A magnified view of a portion of the guide component; Figure 8 This is a partial structural diagram illustrating the installation and disassembly of the connecting pipe and the drive unit of the present invention; Figure 9 This is a partial structural diagram of the sealing ring of the present invention cut open.

[0019] In the diagram: 1. Drive unit; 2. Connecting module; 3. Collection module; 31. Collection box; 32. Fixed pipe; 33. Movable pipe; 34. Float plate; 35. Fan; 36. Balance valve; 4. Connecting structure; 41. Flange; 42. Recessed ring; 43. Connecting hole; 44. Sealing ring; 441. Outer ring; 442. Inner ring; 443. Positioning ring; 5. Connecting pipe; 6. Adhesive assembly; 61. Elastic pipe; 62. Guide pipe; 63. Adhesive plate; 64. Adhesive; 65. Air inlet pipe; 66. Exhaust pipe; 67. Connecting head; 68. Hose; 7. Guide assembly; 71. Connecting ring; 72. Rotating shaft; 73. Guide wheel; 8. Drilling pipe; 9. Handheld part; 10. Extension rod; 11. Water injection pipe. Detailed Implementation

[0020] 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.

[0021] Example 1, such as Figures 1-4As shown, this embodiment proposes a splash-proof device for drilling holes for air conditioner installation, including a connecting module 2 and a collection module 3 connected to one end of the connecting module 2. The connecting module 2 includes a connecting pipe 5, one end of which is connected to a driving part 1. A connecting structure 4 is connected between the connecting pipe 5 and the driving part 1. One end of the connecting pipe 5 is connected to a fitting component 6. The output end of the driving part 1 is fixedly connected to a drilling pipe 8. A guide component 7 is connected to the inner wall of the connecting pipe 5 corresponding to the drilling pipe 8. The fitting component 6 is used to keep the connection between one end of the connecting pipe 5 and the wall tight and to allow the drilling pipe 8 to drill at an angle. The collection module 3 is used to collect the fly ash or water-ash mixture drilled out in cooperation with the fitting component 6. The connecting structure 4 is used to ensure a tight connection between the connecting pipe 5 and the driving part 1. The guide component 7 is used to prevent the rotating drilling pipe 8 from tilting at too large an angle. A handheld part 9 is fixedly connected to the lower end of the driving part 1, an extension rod 10 is fixedly connected to the rear end of the driving part 1, and a water injection pipe 11 is fixedly connected to the lower end of the driving part 1. The water injection pipe 11 is used to connect to the water source during drilling.

[0022] The bonding assembly 6 includes an elastic tube 61 fixedly connected to one end of the connecting tube 5. A guide tube 62 is fixedly connected to one end of the elastic tube 61. A bonding plate 63 is fixedly connected to one side surface of the guide tube 62. Adhesive 64 is adhered to the outer surface of the bonding plate 63. An air inlet pipe 65 is fixedly connected to the upper surface of the guide tube 62. An exhaust pipe 66 is fixedly connected to the lower surface of the guide tube 62. A connector 67 is rotatably connected to the lower end of the exhaust pipe 66. A hose 68 is rotatably connected to the lower end of the connector 67. The elastic tube 61 is a flexible and rotatable tubular structure. The air inlet pipe 65 is used to prevent negative pressure from appearing inside the guide tube 62. The adhesive 64 is an adhesive structure that can be pasted and is easy to peel off. The exhaust pipe 66 is connected to the interior of the guide tube 62. The connector 67 is fixedly connected to the exhaust pipe 66 by threads. The connector 67 and the hose 68 are rotatably connected, and the lower end of the exhaust pipe 66 is connected to the hose 68.

[0023] In this embodiment, the bonding plate 63 can be tightly bonded to the wall during use. At the same time, the elastic tube 61 can accommodate the rotational cutting of the drilling tube 8 and allow the drilling tube 8 to be tilted for cutting, thereby achieving a better hole opening effect.

[0024] Example 2, as Figures 5-6As shown, based on Embodiment 1, a collection module 3 is further proposed, including a collection box 31 for storing waste. A fixed pipe 32 is fixedly connected to the upper end of the collection box 31. A movable pipe 33 is slidably connected inside the fixed pipe 32. A float plate 34 is fixedly connected to the surface of the movable pipe 33 near the lower end. A fan 35 is fixedly connected to the outer surface of the fixed pipe 32. A balance valve 36 is fixedly connected to the upper end of the collection box 31. The fixed pipe 32 passes through the collection box 31. The inside of the collection box 31 is used to store filtered water. The outer diameter of the movable pipe 33 matches the inner diameter of the fixed pipe 32. The movable pipe 33 can move up and down along the fixed pipe 32. The float plate 34 floats up or down due to the action of the filtered water. One end of the fan 35 is fixedly connected to the fixed pipe 32 through a pipe. The outlet pipe is set with an inclined structure. The balance valve 36 is used to balance the pressure inside the collection box 31.

[0025] In this embodiment, in addition to fulfilling the function of the bonding component 6, the fly ash or water-ash mixture generated during the drilling process can also be automatically collected during use, thereby collecting the fly ash or water-ash mixture into the collection box 31, thus collecting the fly ash or water-ash mixture generated during drilling and avoiding splashing.

[0026] Example 3, as Figure 7 As shown, based on Embodiment 1, a guide assembly 7 is also proposed, including a connecting ring 71 fixedly connected to the inner wall surface of the connecting pipe 5, a rotating shaft 72 rotatably connected to the surface of the connecting ring 71, and guide wheels 73 rotatably connected to both ends of the rotating shaft 72; the inner diameter of the connecting ring 71 is larger than the outer diameter of the drilling pipe 8, the rotating shaft 72 passes through the connecting ring 71, the rotating shaft 72 forms a rotatable connection with the connecting ring 71 through a bearing, and the guide wheels 73 form a rotatable connection with the rotating shaft 72 through a bearing.

[0027] In this embodiment, during use, the maximum distance of rotation of the drilling tube 8 can be limited by the collection module 3, thereby preventing one end of the drilling tube 8 from interfering with the bonding component 6 and the connecting tube 5, and thus playing a role in positioning and protection.

[0028] Example 2, as Figures 8-9As shown, based on Embodiment 1, a connecting structure 4 is also proposed, including flanges 41 that are fixedly connected to the outer surfaces of the connecting pipe 5 and the driving part 1 respectively. A recessed ring 42 is provided on the inner side surface of the flange 41. A connecting hole 43 is provided on the outer surface of the two sets of flanges 41. A sealing ring 44 is provided between the two sets of recessed rings 42. The sealing ring 44 includes an outer ring 441 and an inner ring 442. A positioning ring 443 is connected between the outer ring 441 and the inner ring 442. The two sets of recessed rings 42 match the sealing ring 44. The two sets of flanges 41 and the connecting hole 43 are also matched. In the cross section of the sealing ring 44, the positioning ring 443 is distributed in a ring array. The interior of the inner ring 442 is a cavity structure. The cross section of the cavity formed by the inner ring 442, the positioning ring 443 and the outer ring 441 is a trapezoidal structure. The two sets of flanges 41 are connected and fixed by bolts and nuts.

[0029] In this embodiment, during use, the connection between the connecting pipe 5 and the drive unit 1 can be made tighter, thereby preventing leakage that may occur at the connection point and preventing fly ash or water-ash mixture from being exposed between the two sets of flanges 41.

[0030] In summary, the specific operating principle of this invention is as follows: During use, when installing the connecting pipe 5 onto the drive unit 1, the user can align the two sets of flanges 41, and at the same time align the sealing ring 44 with the positions of the two sets of recessed rings 42. Then, a set of bolts and nuts are inserted and tightened into the connecting holes 43 respectively, thereby connecting and fixing the two sets of flanges 41 until the connecting pipe 5 and the drive unit 1 are connected and fixed. After the connection is fixed, when it is necessary to use the device with the water drill to drill holes, the user can attach the adhesive 64 to the surface of the adhesive plate 63, and then attach the adhesive plate 63 to the position of the wall where the hole needs to be drilled. Then the water drill can be started to drill holes. During this process, the user holds the hand handle 9 together with the drive unit 1, and the shoulder presses against the extension rod 10. The drill tube 8 is driven to rotate by the motor inside the drive unit 1, thereby drilling holes in the wall. During the drilling process, the blower 35 operates synchronously, blowing air obliquely into the interior of the fixed pipe 32 from the outside. At this time, the fly ash and water-ash mixture inside the guide pipe 62 is drawn into the exhaust pipe 66, and then the exhaust pipe 66 is drawn into the hose 68, and then into the interior of the fixed pipe 32 through the hose 68. The fly ash and water-ash mixture in the fixed pipe 32 is directly blown into the movable pipe 33 through the movable pipe 33, and then into the interior of the filtered water through the movable pipe 33. The float plate 34 can keep the lower end of the movable pipe 33 always extending into the interior of the filtered water, thereby keeping the fly ash and water-ash mixture inside the filtered water. At the same time, the balance valve 36 can maintain the air pressure balance inside the collection box 31. It should be noted that the surface of the collection box 31 should also have an opening for adding filtered water and an opening for discharging the fly ash and water-ash mixture and the filtered water mixture. During the drilling process, the maximum tilt distance of the drill pipe 8 can be limited when the drill pipe 8 comes into contact with the guide wheel 73. The rotating drill pipe 8 can drive the guide wheel 73 to rotate synchronously, thereby maintaining the stability of the rotation of the drill pipe 8. The guide component 7 can play a good role in limiting and guiding the rotation of the drill pipe 8. It should be noted that during use, the user controls the operation of the device through the buttons on the surface of the handheld part 9, and the water pipe 11 is used to connect to a water source for drilling. Whether to connect to a water source depends on the actual needs of the drilling personnel.

[0031] It should be noted that the maximum shrinkage of the elastic tube 61 should be greater than the thickness of the wall, that is, the drilling tube 8 can be pushed to drill a hole, which is achieved by the shrinkage of the length of the elastic tube 61, and there will be no situation where the drilling tube 8 cannot drill into the wall or interference occurs.

[0032] It should be understood that in this application, all rotating, sliding, meshing, belt-driven and other moving parts are well lubricated and not prone to slippage or wear, and each part is provided with a corresponding protective shell. However, in the accompanying drawings of this application, the connection state of each moving part is not shown. It should also be understood that all parts in this application are made of metal or plastic materials with suitable strength in the relevant field to ensure that their structural rigidity meets the actual requirements.

[0033] 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 splash-proof device for drilling holes for air conditioner installation, comprising a connecting module (2) and a collecting module (3) connected to one end of the connecting module (2), characterized in that, The connecting module (2) includes a connecting tube (5), one end of which is connected to a driving part (1), a connecting structure (4) is connected between the connecting tube (5) and the driving part (1), one end of which is connected to a fitting component (6), the output end of the driving part (1) is fixedly connected to a drilling tube (8), and a guide component (7) is connected to the inner wall of the connecting tube (5) at the location corresponding to the drilling tube (8). The fitting component (6) is used to maintain a tight connection between one end of the connecting pipe (5) and the wall, and to accommodate the inclined drilling of the drilling pipe (8); The collection module (3) is used in conjunction with the bonding component (6) to collect the drilled fly ash or water-ash mixture; The connecting structure (4) is used to achieve a tight connection between the connecting pipe (5) and the driving part (1); The guide assembly (7) is used to prevent the rotating drill pipe (8) from tilting at too large an angle.

2. The anti-splash device for drilling holes for air conditioner installation according to claim 1, characterized in that, The lower end of the drive unit (1) is fixedly connected to a handheld part (9), the rear end of the drive unit (1) is fixedly connected to an extension rod (10), and the lower end of the drive unit (1) is fixedly connected to a water injection pipe (11). The water injection pipe (11) is used to connect to the water source during drilling.

3. The anti-splash device for drilling holes for air conditioner installation according to claim 1, characterized in that, The bonding assembly (6) includes an elastic tube (61) fixedly connected to one end of the connecting tube (5), a guide tube (62) fixedly connected to one end of the elastic tube (61), a bonding plate (63) fixedly connected to one side surface of the guide tube (62), bonding adhesive (64) adhered to the outer surface of the bonding plate (63), an air inlet pipe (65) fixedly connected to the upper surface of the guide tube (62), an exhaust pipe (66) fixedly connected to the lower surface of the guide tube (62), a connector (67) rotatably connected to the lower end of the exhaust pipe (66), and a flexible hose (68) rotatably connected to the lower end of the connector (67).

4. The anti-splash device for drilling holes for air conditioner installation according to claim 2, characterized in that, The collection module (3) includes a collection box (31) for storing waste. A fixed pipe (32) is fixedly connected to the upper end of the collection box (31). A movable pipe (33) is slidably connected inside the fixed pipe (32). A float plate (34) is fixedly connected to the surface of the movable pipe (33) near the lower end. A fan (35) is fixedly connected to the outer surface of the fixed pipe (32). A balance valve (36) is fixedly connected to the upper end of the collection box (31).

5. The anti-splash device for drilling holes for air conditioner installation according to claim 3, characterized in that, The guide assembly (7) includes a connecting ring (71) fixedly connected to the inner wall surface of the connecting tube (5), and a rotating shaft (72) is rotatably connected to the surface of the connecting ring (71). Guide wheels (73) are rotatably connected to both ends of the rotating shaft (72).

6. The anti-splash device for drilling holes for air conditioner installation according to claim 1, characterized in that, The connecting structure (4) includes flanges (41) that are fixedly connected to the outer surfaces of the connecting pipe (5) and the driving part (1). A recessed ring (42) is provided on the inner side surface of the flange (41). A connecting hole (43) is provided on the outer surface of the two sets of flanges (41). A sealing ring (44) is provided between the two sets of recessed rings (42). The sealing ring (44) includes an outer ring (441) and an inner ring (442). A positioning ring (443) is connected between the outer ring (441) and the inner ring (442).

7. The air conditioner installation drilling splash-proof device according to claim 3, characterized in that, The elastic tube (61) is a flexible and rotatable soft tube structure. The air inlet tube (65) is used to prevent negative pressure from appearing inside the guide tube (62). The adhesive (64) is an adhesive structure that can be pasted and is easy to peel off. The exhaust tube (66) is connected to the inside of the guide tube (62). The connector (67) is connected and fixed to the exhaust tube (66) by threads. The connector (67) and the hose (68) are rotated together, and the lower end of the exhaust tube (66) is connected to the hose (68).

8. The anti-splash device for drilling holes for air conditioner installation according to claim 4, characterized in that, The fixed pipe (32) passes through the collection box (31), and the inside of the collection box (31) is used to store filtered water. The outer diameter of the movable pipe (33) matches the inner diameter of the fixed pipe (32). The movable pipe (33) can move up and down along the fixed pipe (32). The floating plate (34) floats up or down due to the action of the filtered water. One end of the blower (35) is fixedly connected to the fixed pipe (32) through a pipe, and the outlet pipe is set with an inclined structure. The balance valve (36) is used to balance the pressure inside the collection box (31).

9. The anti-splash device for drilling holes for air conditioner installation according to claim 5, characterized in that, The inner diameter of the connecting ring (71) is larger than the outer diameter of the drilling tube (8). The rotating shaft (72) passes through the connecting ring (71). The rotating shaft (72) is connected to the connecting ring (71) through a bearing. The guide wheel (73) is connected to the rotating shaft (72) through a bearing.

10. The anti-splash device for drilling holes for air conditioner installation according to claim 6, characterized in that, The two sets of recessed rings (42) are matched with the sealing rings (44), and the two sets of flanges (41) are matched together with the connecting holes (43). In the cross section of the sealing ring (44), the positioning rings (443) are distributed in a ring array. The inner ring (442) has a hollow structure inside. The cross section of the cavity formed by the inner ring (442), the positioning ring (443) and the outer ring (441) is a trapezoidal structure. The two sets of flanges (41) are connected and fixed by bolts and nuts.

Citation Information

Patent Citations

  • A drilling splash-proof device for installing air conditioners in buildings

    CN114536568B