Rapid installation tool for central air conditioner indoor unit and implementation method

Abstract

The invention relates to the technical field of air conditioner construction, in particular to a quick installation tool for a central air conditioner indoor unit and an implementation method.The quick installation tool comprises at least one lifting device, the lifting device comprises a rack, a locking assembly and a winch assembly, the locking assembly and the winch assembly are arranged on the rack, the rack is provided with a through hole for a suspended ceiling screw to pass through, and the through hole is provided with an opening in the side direction of the rack; the locking assembly can lock the suspended ceiling screw penetrating through the through hole and the rack together, and a twisted rope is wound around the winch assembly. The tray is used for bearing the central air conditioner indoor unit to be installed, the number of lifting rings of the tray is consistent with that of the lifting devices, and the lifting rings are connected with the twisted ropes one by one; the telescopic control rod can support the lifting device to the roof and penetrate through the suspended ceiling screw rod, and is used for wirelessly controlling locking or unloading of the locking assembly and retraction and release of the winch assembly; according to the lifting device, the lifting device is mounted and fixed by means of the suspended ceiling screw and connected with a tray used in cooperation, the central air conditioner indoor unit can be automatically lifted to a proper position under the action of the winch assembly, and manpower is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning construction, and in particular to a rapid installation tool for an indoor unit of a central air conditioner and an implementation method thereof. Background Art

[0002] For central air conditioners, the cost is generally 30% equipment and 70% installation, and the cost of air conditioner installation accounts for more than 1 / 4 of the overall cost of air conditioner implementation. Especially for the installation of central air conditioner indoor units, due to the large number, for example, the number of central air conditioner indoor units installed in an ordinary five-story building is about 200, so the installation of central air conditioner indoor units requires a lot of manpower.

[0003] One of the current installation methods for central air conditioner indoor units is manual installation. First, the installation position of each indoor central air conditioner indoor unit is determined according to the architectural drawings, and then the expansion screws are manually driven into the roof positioning points to adapt to the ceiling screws. Then two workers use a stepladder to lift the central air conditioner indoor unit to a certain height. After reaching a certain height, the lifting posture needs to be maintained. At the same time, the four hanging ears of the central air conditioner indoor unit are respectively inserted into the corresponding ceiling screws, and then the nuts are installed on the ceiling screws respectively, and then the lifting action is released. After that, the worker adjusts the nuts to balance the central air conditioner indoor unit, and then performs subsequent operations such as pipeline installation. In this installation method, the lifting process of the central air conditioner indoor unit and the insertion of the hanging ears require at least two workers to participate at the same time, and it is necessary to work at a high altitude, which requires high installation skills of the workers.

[0004] Another way to install the central air conditioner is to use a lifting device. The lifting device (usually a scissor lift) lifts the central air conditioner to a certain height and then installs it manually. Since the lifting device is generally bulky, it is not convenient to move it to a higher floor to install the central air conditioner. Summary of the invention

[0005] The purpose of the present invention is to provide a central air conditioner indoor unit quick installation tool and implementation method to solve the problems existing in manual installation and installation with the help of lifting equipment of the central air conditioner indoor unit. In order to achieve the above purpose, the present invention solves it through the following technical solutions:

[0006] In a first aspect, the present invention provides a central air conditioner indoor unit quick installation tool, comprising:

[0007] At least one lifting device, the lifting device comprising a frame and a locking assembly and a winch assembly arranged thereon, the frame being provided with a through hole for a ceiling screw to pass through, the through hole being opened at the side of the frame, the locking assembly being able to lock the ceiling screw passing through the through hole with the frame, and the winch assembly being wound with a rope;

[0008] A tray, used for carrying the central air conditioner indoor unit to be installed, the number of lifting rings it has is consistent with the number of the lifting device, the lifting rings are connected to the ropes one by one, and a gyroscope is provided on the tray;

[0009] The telescopic control rod can support the lifting device to the roof and pass through the ceiling screw, and is used for wirelessly controlling the locking or unloading of the locking assembly and the retraction and extension of the winch assembly.

[0010] As a further technical solution, the locking assembly includes a slider and a drive thereof, and the slider achieves locking by pressing the ceiling screw passing through the through hole.

[0011] As a further technical solution, the locking assembly further includes a lead screw and a slide groove, and the drive drives the slider to slide in the slide groove through the lead screw.

[0012] As a further technical solution, the frame is U-shaped steel, the locking assembly is installed in the U-shaped steel groove, and the through hole is provided with reinforcement treatment on the opposite side of the opening.

[0013] As a further technical solution, the winch assembly is arranged at one end of the frame, and a wingspan structure is provided on the top of the other end, and the through hole is provided between the winch assembly and the wingspan structure.

[0014] As a further technical solution, protrusions are provided on both sides of the frame, a supporting groove is provided on the top of the telescopic control rod, and a groove matching with the protrusion is provided on the inner side wall of the supporting groove.

[0015] As a further technical solution, it comprises four lifting devices, and the pallet is evenly provided with four lifting rings to cooperate with the lifting devices.

[0016] As a further technical solution, the pallet is a scissor-type structure, and the scissor-type structure can be locked after being adjusted to a required size.

[0017] In a second aspect, the present invention provides an implementation method of the central air conditioner indoor unit quick installation tooling according to the first aspect, comprising the following steps:

[0018] Install the ceiling screws at the set position according to the construction drawings, network and pair the telescopic control rods with each lifting device, use the telescopic control rods to pass the lifting devices through the ceiling screws one by one and lift them to the roof, and control the locking assembly to lock the lifting device and the ceiling screws. After the four lifting devices are installed, the lifting positions are symmetrically distributed;

[0019] Connect the winch ropes of the winch assembly on the lifting device to the corresponding lifting rings of the pallet, try to lift and correct the balance of the pallet, place the central air-conditioning indoor unit on the pallet and lift it so that the hanging ears pass through the corresponding ceiling screws, and install nuts on the corresponding ceiling screws; control the pallet to descend, then unlock the connection between the lifting device and the ceiling screws, and remove it from the side opening of the through hole, then adjust the nuts to make the central air-conditioning indoor unit balanced to complete the installation.

[0020] As a further technical solution, the four lifting devices, telescopic control rods and gyroscopes are networked through Bluetooth mesh. During the trial lifting, the four lifting devices are lifted by the set distance respectively, the tilt angle of the gyroscope is tested, and the correspondence between the four lifting devices and the direction of the gyroscope is calibrated. Then, during the overall lifting process, the PID algorithm is used to adjust the operating speed of the four winch assembly drive motors in real time to ensure the balance of the pallet.

[0021] The beneficial effects of the present invention are as follows:

[0022] (1) The present invention uses the installed ceiling screw to lock it together with the ceiling screw through the locking assembly of the lifting device, so that the lifting device can be installed and fixed by itself. The lifting device is used as a supporting point for lifting. When connected to a matching tray, the central air conditioner indoor unit can be automatically lifted to a suitable position under the action of the winch assembly, thereby saving manpower, facilitating the installation of the air conditioner indoor unit, and improving the installation efficiency.

[0023] (2) The lifting device, tray, and telescopic control rod of the present invention are designed as separate modules. The corresponding components can be selected according to the site conditions. After the construction is completed, they can be stored in a backpack for easy carrying.

[0024] (3) The present invention realizes the linkage between the lifting device, the telescopic control rod and the gyroscope through Bluetooth mesh networking. During the trial lifting, the four lifting devices are lifted by the set distance respectively, the tilt angle of the gyroscope is tested, and the corresponding relationship between the four lifting devices and the direction of the gyroscope is calibrated. Then, during the overall lifting process, the operating speed of the four winch assembly drive motors is adjusted in real time through the PID algorithm to achieve horizontal lifting of the pallet. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their description are used to explain the present invention and do not constitute a limitation of the present invention. It should also be understood that these drawings are shown for simplicity and clarity and are not necessarily drawn to scale. The present invention will now be described and explained with additional features and details through the use of the accompanying drawings, in which:

[0026] Figure 1 A schematic diagram showing the use status of the central air conditioner indoor unit quick installation tooling in an embodiment of the present invention;

[0027] Figure 2 It shows an axonometric view of a lifting device in an embodiment of the present invention;

[0028] Figure 3 Another isometric view of the lifting device in the embodiment of the present invention is shown;

[0029] Figure 4 A schematic top view of a lifting device in an embodiment of the present invention is shown;

[0030] Figure 5 A schematic diagram showing the state of cooperation between the lifting device and the telescopic control rod in the embodiment of the present invention is shown;

[0031] Figure 6 An axonometric view of a tray structure in an embodiment of the present invention is shown.

[0032] In the figure: 100, lifting device; 110, frame; 120, first motor; 121, rope; 122, first lifting ring; 130, through hole; 131, opening; 140, wingspan structure; 150, protrusion; 160, second motor; 161, screw; 162, slider; 163, slide groove; 170, battery; 180, control circuit board; 200, roof; 300, ceiling screw; 400, tray; 410, second lifting ring; 420, first connecting rod; 430, gyroscope; 440, second connecting rod; 450, clamping screw; 500, telescopic control rod; 510, supporting groove; 520, control button. DETAILED DESCRIPTION

[0033] The technical solutions in typical embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0034] Embodiment 1

[0035] like Figure 1 As shown, this embodiment provides a central air conditioner indoor unit quick installation tool, including at least one lifting device 100, a tray 400 and a telescopic control rod 500.

[0036] The central air conditioner generally has four hanging ears, and four ceiling screws 300 should be configured on the corresponding roof. In order to maintain the balance of lifting, four lifting devices are provided in this embodiment. It can be understood that the tooling of this embodiment can realize single-point lifting and multi-point lifting according to the number of lifting devices provided, and is suitable for various lifting occasions.

[0037] like Figure 2 , Figure 3 and Figure 4As shown, the lifting device 100 includes a frame 110 and a locking assembly and a winch assembly arranged thereon. The frame 110 is provided with a through hole 130 for the ceiling screw 300 to pass through. The through hole 130 has an opening 131 on the side of the frame 110. The locking assembly can lock the ceiling screw 300 passing through the through hole 130 together with the frame 110, and the winch assembly is wound with a rope 121.

[0038] This embodiment makes use of the installed ceiling screw 300 and locks it together with the ceiling screw 300 through the locking component of the lifting device 100, so that the lifting device 100 can be installed and fixed itself. As a supporting point for lifting, it is connected to a matching tray 400, and the central air-conditioning indoor unit can be automatically lifted to a suitable position under the action of the winch assembly, which saves manpower, facilitates the installation of the central air-conditioning indoor unit, and improves the installation efficiency.

[0039] After the central air conditioner indoor unit is lifted and the hanging ear passes through the ceiling screw 300, the lifting device 100 cannot be withdrawn from the ceiling screw 300 in the original way. For this reason, the through hole 130 has an opening 131 on the side of the frame 110, so that the lifting device 100 can be withdrawn from the opening 131 to achieve the purpose of unloading.

[0040] In this embodiment, the frame 110 is a U-shaped steel, and the locking assembly is installed in the U-shaped steel groove. After the opening 131 is set at the through hole 130, the opposite side of the opening 131 is a weak point in strength, so the through hole 130 is provided with a reinforcement treatment on the opposite side of the opening 131, for example, a thicker plate can be used in this area, or other plates can be welded as reinforcement.

[0041] A winch assembly is arranged at one end of the frame 110, and a wing span structure 140 is arranged at the top of the other end. The through hole 130 is arranged between the winch assembly and the wing span structure 140. The wing span structure 140 can increase the contact area with the roof 200.

[0042] The locking assembly includes a lead screw 161, a slide groove 163, a slider 162 and a driver. The slider 162 is locked by pressing the ceiling screw 300 passing through the through hole 130. In this embodiment, the driver is a second motor 160. The second motor 160 rotates to drive the lead screw 161 to rotate. The lead screw 161 is threadedly connected to the slider 162. Driven by the rotation of the lead screw 161, the slider 162 slides in the slide groove 163, and can be pressed on the ceiling screw 300, thereby locking the lifting device 100 and the ceiling screw 300.

[0043] The winch assembly includes a first motor 120, a rope 121 and a first lifting ring 122. The rope 121 is wound around the winch, and the first motor 120 drives the winch to retract and release the rope 121 to achieve the purpose of lifting or lowering.

[0044] In this embodiment, the first motor 120 and the second motor 160 are both reduction motors, which contain planetary reduction devices and have self-locking capabilities.

[0045] The frame 110 is also equipped with a battery 170 and a control circuit board 180, and the battery 170 is used to power the entire lifting device 100. The control circuit board 180 has a Bluetooth function and can communicate with other lifting devices 100 and the gyroscope 430 through a Bluetooth mesh network.

[0046] like Figure 5 As shown, the telescopic control rod 500 can support the lifting device 100 to the roof 200 and pass through the ceiling screw 300, and is used to wirelessly control the locking or unloading of the locking assembly and the retraction and extension of the winch assembly. The telescopic control rod 500 itself can be automatically raised and lowered, and can be operated by hand.

[0047] The frame 110 is provided with protrusions 150 on both sides, the top of the telescopic control rod 500 is provided with a supporting groove 510, and the inner wall of the supporting groove 510 is provided with a groove matched with the protrusion 150. When the two are used in combination, they can be assembled together.

[0048] A variety of control buttons 520 are provided on the telescopic control rod 500, such as a locking button, a release button, an overall lifting button, an overall lowering button and other human-computer interaction functions for controlling the entire system. Wireless control of other components by buttons belongs to the prior art and will not be described here.

[0049] like Figure 6 As shown, the tray 400 is used to carry the air conditioner indoor unit to be installed. The number of lifting rings it has is consistent with the number of the lifting device 100. The lifting ring it has is the second lifting ring 410, and the second lifting ring 410 is connected one by one with the first lifting ring 122 on the rope 121.

[0050] In this embodiment, four lifting devices 100 are arranged, and the pallet 400 is evenly provided with four second lifting rings 410 to cooperate therewith.

[0051] The pallet 400 is a scissor-type structure, which can be locked after being adjusted to the desired size. The pallet 400 includes two parallel first connecting rods 420 and two cross-arranged second connecting rods 440. A slide groove is provided at the end of the first connecting rod 420. One end of the two second connecting rods 440 is respectively hinged to one end of the first connecting rod 420, and the other end can slide in the slide groove and be fixed in position by setting a clamping screw 450. The size of the pallet 400 can be adjusted by the clamping screw 450.

[0052] The tray 400 is provided with a gyroscope 430 for ensuring the balance of the tray 400 when the tray 400 is lifted as a whole.

[0053] Since the lifting device 100 is installed on the ceiling screw 300, the installation accuracy is limited. If the lifting device 100 is not linked during lifting, the tray 400 may be unbalanced, so it is necessary to perform balance correction through the gyroscope 430. Specifically:

[0054] The four lifting devices 100, the telescopic control rod 500, and the gyroscope 430 are networked by Bluetooth mesh. When lifting the whole, a trial lift is first performed, that is, the four lifting devices 100 are lifted for a certain distance respectively to test the tilt angle of the gyroscope 430. This process is mainly used to calibrate the corresponding relationship between the directions of the four lifting devices 100 and the gyroscope 430. Then, during the overall lifting process, the operating speed of the four first motors 120 is adjusted in real time through the PID algorithm to ensure the balance of the tray 400.

[0055] Embodiment 2

[0056] This embodiment provides an implementation method of the central air conditioner indoor unit quick installation tooling according to the first embodiment, comprising the following steps:

[0057] Install the ceiling screw 300 at the set position according to the construction drawing, network and pair the telescopic control rod 500 with each lifting device 100, use the telescopic control rod 500 to pass the lifting devices 100 through the ceiling screw 300 one by one and lift them to the roof 200, and control the action of the locking assembly to achieve the locking of the lifting device 100 and the ceiling screw 300. After the four lifting devices 100 are installed, the lifting positions are symmetrically distributed;

[0058] Connect the winch rope 121 of the winch assembly on the lifting device 100 to the corresponding lifting rings of the pallet 400 respectively, use the gyroscope 430 to correct the balance of the pallet 400 for trial lifting, place the central air-conditioning indoor unit on the pallet 400 and lift it so that the hanging ear passes through the corresponding ceiling screw 300, and install the nut on the corresponding ceiling screw 300; control the pallet 400 to descend, then unlock the connection between the lifting device 100 and the ceiling screw 300, and remove it from the side opening 131 of the through hole 130, and then adjust the nut to make the central air-conditioning indoor unit balanced to complete the installation.

[0059] Since the lifting device 100 is installed on the ceiling screw 300, the installation accuracy is limited. If the lifting device 100 is not linked during lifting, the tray 400 may be unbalanced, so it is necessary to perform balance correction through the gyroscope 430. Specifically:

[0060] The four lifting devices 100, the telescopic control rod 500, and the gyroscope 430 are networked by Bluetooth mesh. When lifting the whole, a trial lift is first performed, that is, the four lifting devices 100 are lifted for a certain distance respectively to test the tilt angle of the gyroscope 430. This process is mainly used to calibrate the corresponding relationship between the directions of the four lifting devices 100 and the gyroscope 430. Then, during the overall lifting process, the operating speed of the four first motors 120 is adjusted in real time through the PID algorithm to ensure the balance of the tray 400.

[0061] Although the present invention has been disclosed as above in the form of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art may make possible changes and modifications to the technical solution of the present invention by using the methods and technical contents disclosed above without departing from the spirit and scope of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall fall within the protection scope of the technical solution of the present invention.

Claims

1. A quick installation tool for a central air conditioner indoor unit, characterized in that: include: At least one lifting device, the lifting device comprising a frame and a locking assembly and a winch assembly arranged thereon, the frame being provided with a through hole for a ceiling screw to pass through, the through hole being opened at the side of the frame, the locking assembly being able to lock the ceiling screw passing through the through hole with the frame, and the winch assembly being wound with a rope; A tray, used for carrying the central air conditioner indoor unit to be installed, the number of lifting rings it has is consistent with the number of the lifting device, the lifting rings are connected to the ropes one by one, and a gyroscope is provided on the tray; The telescopic control rod can support the lifting device to the roof and pass through the ceiling screw, and is used for wirelessly controlling the locking or unloading of the locking assembly and the retraction and extension of the winch assembly.

2. A central air conditioner indoor unit quick installation tool as claimed in claim 1, characterized in that: The locking assembly includes a slider and a drive thereof, and the slider achieves locking by pressing the ceiling screw that passes through the through hole.

3. A central air conditioner indoor unit quick installation tool as claimed in claim 2, characterized in that: The locking assembly also includes a lead screw and a slide groove, and the driving means drives the slider to slide in the slide groove via the lead screw.

4. A central air conditioner indoor unit quick installation tool as claimed in claim 1, characterized in that: The frame is U-shaped steel, the locking assembly is installed in the U-shaped steel groove, and the through hole is provided with a reinforcement treatment on the opposite side of the opening.

5. A central air conditioner indoor unit quick installation tool as claimed in claim 1, characterized in that: The winch assembly is arranged at one end of the frame, and a wing span structure is arranged at the top of the other end, and the through hole is arranged between the winch assembly and the wing span structure.

6. A central air conditioner indoor unit quick installation tool as claimed in claim 1, characterized in that: The frame is provided with protrusions on both sides, the top of the telescopic control rod is provided with a supporting groove, and the inner side wall of the supporting groove is provided with a groove matched with the protrusion.

7. A central air conditioner indoor unit quick installation tool as claimed in claim 1, characterized in that: It comprises four lifting devices, and the pallet is evenly provided with four lifting rings to cooperate with the lifting devices.

8. A central air conditioner indoor unit quick installation tool as claimed in claim 7, characterized in that: The pallet is a scissor-type structure, and the scissor-type structure can be locked after being adjusted to a required size.

9. The method for implementing the central air conditioner indoor unit quick installation tool according to any one of claims 1 to 8, characterized in that: The following steps are involved: Install the ceiling screws at the set position according to the construction drawings, network and pair the telescopic control rods with each lifting device, use the telescopic control rods to pass the lifting devices through the ceiling screws one by one and lift them to the roof, and control the locking assembly to lock the lifting device and the ceiling screws. After the four lifting devices are installed, the lifting positions are symmetrically distributed; Connect the winch ropes of the winch assembly on the lifting device to the corresponding lifting rings of the pallet, try to lift and correct the balance of the pallet, place the central air-conditioning indoor unit on the pallet and lift it so that the hanging ears pass through the corresponding ceiling screws, and install nuts on the corresponding ceiling screws; control the pallet to descend, then unlock the connection between the lifting device and the ceiling screws, and remove it from the side opening of the through hole, then adjust the nuts to make the central air-conditioning indoor unit balanced to complete the installation.

10. The method for implementing the central air conditioner indoor unit quick installation tool as claimed in claim 9, characterized in that: The Bluetooth mesh is used to realize the networking of four lifting devices, telescopic control rods and gyroscopes. During the trial lifting, the four lifting devices are lifted by the set distance respectively, the tilt angle of the gyroscope is tested, and the corresponding relationship between the four lifting devices and the direction of the gyroscope is calibrated. Then, during the overall lifting process, the PID algorithm is used to adjust the operating speed of the four winch assembly drive motors in real time to ensure the balance of the pallet.

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