Assembly type height-adjustable outdoor unit support device of multi-split air conditioner

By using prefabricated fixed and adjustable columns, combined with bolt connections, the problems of complex installation and non-adjustable height of traditional multi-split outdoor unit brackets are solved, enabling rapid installation and flexible height adjustment, reducing costs and environmental impact.

CN224261840UActive Publication Date: 2026-05-19GUILIN ARCHITECTURAL PLANNING & DESIGN GROUP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUILIN ARCHITECTURAL PLANNING & DESIGN GROUP CO LTD
Filing Date
2025-04-03
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Traditional multi-split air conditioning outdoor unit brackets are complex to install and inefficient, with non-adjustable height, leading to material waste and environmental pollution, and making it difficult to meet the requirements of different sites and equipment.

Method used

The design adopts a prefabricated approach, including fixed columns and adjustable columns, with height adjustment achieved through bolt connections, avoiding on-site welding. The modular and standardized design reduces material waste and construction pollution.

Benefits of technology

It enables rapid installation and flexible height adjustment, reduces construction costs and waste, adapts to different installation scenarios, and meets green building requirements.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of heating ventilation air conditioners, in particular to an assembly type height-adjustable air conditioner multi-split air conditioner outdoor unit support device which comprises a fixed stand column, a fixed stand column, a movable stand column and a movable stand column. The base is fixed on a concrete foundation through expansion bolts; the adjusting stand column is located outside the fixed stand column, can be adjusted within a certain range and is connected with the fixed stand column and the first cross beam; the fixing bolts fix the adjusting stand columns and the fixing stand columns; the cross beam I is connected with the adjusting stand column and the cross beam II; the cross beam II is connected with the cross beam I and the multi-split outdoor unit; the second cross beam, the multi-split outdoor unit, the first cross beam and the adjusting stand column are connected through bolts. The device is suitable for air conditioner multi-split air conditioners of different brands, is of an assembly type, can be quickly assembled and disassembled, and can be repeatedly used. The height of the multi-split outdoor unit is adjusted through the adjusting stand column, and when multi-split outdoor unit equipment has requirements, the height of the multi-split outdoor unit from the ground is adjusted by lifting or lowering different fixing positions of the adjusting stand column, so that the heat dissipation requirement of the multi-split outdoor unit is met.
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Description

Technical Field

[0001] This utility model relates to the field of equipment installation technology, and in particular to a prefabricated adjustable height multi-split air conditioning outdoor unit bracket device. Background Technology

[0002] With the continuous development of HVAC technology, multi-split air conditioning systems have been widely used in the building industry due to their advantages such as high efficiency, energy saving, and flexible installation. However, in actual installation, the bracket installation of multi-split outdoor units has always had many problems. Traditional bracket installations usually adopt on-site welding or fixed height design, which has the following shortcomings:

[0003] Installation is complex and inefficient: Traditional brackets require on-site welding and cutting, which is cumbersome, inefficient, and prone to safety hazards due to improper welding operations.

[0004] Non-adjustable height: Most existing brackets are designed with a fixed height, which cannot flexibly adjust the installation height of the outdoor unit according to actual needs, making it difficult to meet different site conditions and equipment requirements.

[0005] Material waste and environmental impact: On-site fabrication of traditional supports generates a large amount of material waste and environmental pollution, such as welding fumes and cutting waste.

[0006] In recent years, prefabricated support and hanger technology has gradually emerged, and its standardized and modular design concept has provided new ideas for the installation of HVAC equipment. Prefabricated supports and hangers have advantages such as quick installation, no need for on-site welding, and reusability. However, there are still relatively few prefabricated brackets for multi-split outdoor units on the market, especially in terms of height adjustment function, which is significantly lacking.

[0007] Therefore, developing a prefabricated, height-adjustable multi-split outdoor unit bracket device can not only improve installation efficiency and reduce costs, but also meet the needs of different installation scenarios, which is of great practical significance. Utility Model Content

[0008] The main purpose of this utility model is to provide a prefabricated adjustable height outdoor unit bracket for multi-split air conditioners, which aims to solve the problems of complex installation, non-adjustable height, inconsistent foundations for outdoor units of different brands of multi-split air conditioners, and difficulty in later maintenance and replacement.

[0009] To achieve the above objectives, the present invention proposes a prefabricated adjustable height multi-split air conditioning unit outdoor unit bracket device, comprising:

[0010] A prefabricated adjustable height multi-split air conditioner outdoor unit bracket device, characterized in that it comprises:

[0011] Fixed column;

[0012] An adjusting column is located outside the fixed column;

[0013] A fixing bolt, used to fix the adjusting column and the fixing column;

[0014] A crossbeam one, which is located at the top of the adjusting column;

[0015] The second crossbeam is located at the top of the first crossbeam;

[0016] The adjusting column, crossbeam one, and crossbeam two are all connected by bolts.

[0017] Preferably, both the fixed column and the adjusting column are circular hollow structures, and the inner wall of the adjusting column slides in conjunction with the outer wall of the fixed column.

[0018] Preferably, the adjusting column is provided with a plurality of fixing screw holes arranged in a vertical direction, and the fixing bolt passes through the fixing screw holes and the corresponding screw holes on the fixing column to fix the adjusting column at different height positions inside the fixing column.

[0019] Preferably, both the first crossbeam and the second crossbeam are channel steel, and the first crossbeam and the second crossbeam are connected by bolts, and the second crossbeam is connected to the multi-split outdoor unit by bolts.

[0020] Preferably, the bolted connection includes a bolted connection for achieving a stable connection between the second crossbeam and the multi-split outdoor unit, between the first crossbeam and the second crossbeam, and between the first crossbeam and the adjusting column.

[0021] Preferably, the bottom of the fixed column is provided with a reinforcing plate, and the expansion bolt passes through the reinforcing plate and is fixed to the concrete foundation to enhance the stability of the fixed column.

[0022] This utility model discloses a prefabricated adjustable-height multi-split air conditioning unit outdoor unit bracket device, which includes fixed columns and adjustable columns. To avoid the problem of the equipment height being unadjustable during installation, this utility model utilizes fixing screw holes on both the fixed and adjustable columns. By adjusting the position of the fixing screw holes, the unit can be bolted together on-site, making the installation process simple and quick, eliminating the need for on-site welding and cutting, and greatly shortening the construction cycle. The standardized and modular design reduces on-site processing and material waste, lowering construction costs. At the same time, the adjustable height design reduces rework costs caused by unsuitable height; the prefabricated design reduces waste and pollution generated during on-site construction, meeting the requirements of green building and sustainable development. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of an assembled adjustable height multi-split air conditioner outdoor unit bracket device according to an embodiment of the present invention;

[0025] Figure 2 This is a detailed structural schematic diagram of an embodiment of the assembled adjustable height multi-split air conditioner outdoor unit bracket device of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of a fixed column according to an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the structure of the adjusting column according to an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the structure of a crossbeam according to an embodiment of the present invention;

[0029] Figure 6 This is a schematic diagram of the structure of the second crossbeam in one embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram of the connection between the adjusting column and the fixed column according to an embodiment of the present invention; (See attached figures for explanation.)

[0031]

[0032]

[0033] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] It should be noted that all directional indicators in this embodiment are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicator will also change accordingly.

[0036] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0037] The following is a further detailed implementation of the "Assembled Adjustable Height Multi-Split Air Conditioner Outdoor Unit Bracket Device," with a more detailed and comprehensive description of the technical solution in conjunction with the accompanying drawings:

[0038] Example 1: Structural Composition and Installation Process

[0039] 1. Structural Composition

[0040] like Figures 1-7 As shown, the prefabricated adjustable height multi-split air conditioner outdoor unit bracket device of this utility model includes the following main components:

[0041] Fixed column (100): Adopts a circular hollow steel structure with dimensions D108mm × 5mm (outer diameter × wall thickness) and a height of 500mm. Suitable for any model of single-module outdoor unit. The bottom of the fixed column is equipped with a reinforcing plate (101) with dimensions 200mm × 200mm × 10mm (length × width × thickness) for installing expansion bolts (102). Multiple fixing threaded holes (104) with a diameter of 10mm are evenly distributed along the vertical direction on the column (103) to ensure the stability of the device.

[0042] Adjustable column (200): Adopts a circular hollow steel structure, with dimensions of D121mm × 5mm (outer diameter × wall thickness) and a height of 500mm. Suitable for any model of single-module outdoor unit. The adjustable column is fitted onto the fixed column and can slide vertically up and down within the fixed column. Multiple 10mm diameter threaded holes (201) are evenly distributed vertically on the adjustable column.

[0043] Fixing bolts (300): M10 bolts are used to fix the adjusting column (200) at different height positions inside the fixed column (100).

[0044] Crossbeam 1 (400): Made of channel steel with a cross-sectional dimension of 100mm×58mm×5.3mm and a length of 1000mm. Suitable for any model of single-module outdoor unit. The bottom of crossbeam 1 is bolted to the top of the adjusting column (200).

[0045] Crossbeam 2 (500): Made of channel steel with a cross-sectional dimension of 100mm×58mm×5.3mm; length 1100mm, suitable for 8-12 HP multi-split air conditioner outdoor units; length 1500mm, suitable for 14-22 HP multi-split air conditioner outdoor units; length 1900mm, suitable for 24-32 HP multi-split air conditioner outdoor units; other large-capacity outdoor units can be installed in parallel. The bottom of crossbeam 2 is bolted to the top of crossbeam 1 (400), and the top of crossbeam 2 is used to install the multi-split outdoor unit.

[0046] Bolted connection: Bolted connection is adopted to ensure a stable connection between the second crossbeam (500) and the multi-split outdoor unit, the first crossbeam (400) and the second crossbeam (500), and the first crossbeam (400) and the adjusting column (200).

[0047] 2. Installation process

[0048] 1. Foundation preparation: Determine the installation location on the concrete foundation, and pre-set the installation holes for the expansion bolts (102) according to the dimensions of the fixed column (100).

[0049] 2. Install the fixed column: Place the fixed column (100) on the pre-embedded hole and fix it to the concrete foundation with expansion bolts (102) to ensure that the fixed column is vertical and stable.

[0050] 3. Install the adjusting column: Insert the adjusting column (200) into the fixed column (100). According to the installation height requirements of the multi-split outdoor unit, select the appropriate fixing threaded hole (201) and fix the adjusting column at the corresponding height position outside the fixed column with fixing bolts (300).

[0051] 4. Install crossbeam one and crossbeam two: Connect the bottom of crossbeam one (400) to the top of the adjusting column (200) with bolts, and connect the top of crossbeam one (500) to the bottom with bolts. Connect the top of crossbeam two (500) to the bottom of the multi-split outdoor unit with bolts to complete the installation of the entire bracket assembly.

[0052] 5. Inspection and Adjustment: Check that all bolts at the connection points are tight to ensure the stability of the entire support structure. If necessary, the height of the support column can be further adjusted to meet the optimal installation height requirements of the multi-split outdoor unit.

[0053] Example 2: Height Adjustment and Application Scenarios

[0054] 1. Height adjustment

[0055] The support device of this utility model can flexibly meet different site conditions and equipment requirements through the height adjustment function of the adjustable column (200):

[0056] Low-height installation: If site conditions limit the installation height of the multi-split outdoor unit to a low level, the adjusting column (200) can be adjusted downwards to the lowest position and fixed with fixing bolts (300) to achieve low-height installation.

[0057] High-height installation: If the outdoor unit of the multi-split air conditioner needs to be installed at a higher position, the adjusting column (200) can be adjusted upward to the highest position and fixed with the fixing bolts (300) to achieve high-height installation.

[0058] Intermediate height installation: For height requirements between the lowest and highest, the adjusting column can be fixed in the middle position outside the fixed column by selecting the appropriate fixing threaded hole (201) to achieve flexible height adjustment.

[0059] 2. Application Scenarios

[0060] This utility model is applicable to various types of multi-split outdoor units, and has wide applicability and promotional value. For example:

[0061] High-rise buildings: In high-rise buildings, multi-split outdoor units may need to be installed on platforms at different heights. This unit, with its height adjustment function, can flexibly adapt to the installation requirements of different floor levels.

[0062] Complex sites: For sites with uneven ground or limited space, this device can adjust the height to ensure that the installation position of the multi-split outdoor unit meets the equipment operation requirements.

[0063] Equipment replacement and maintenance: When replacing or maintaining equipment, it can be quickly disassembled and reinstalled by removing bolts, without the need for extensive dismantling work, and the brackets can be reused, reducing maintenance costs.

[0064] Example 3: Modular Design and Extended Applications

[0065] 1. Modular design

[0066] The support device of this utility model adopts a modular design, and each component is a standardized module, which can be combined and expanded according to different needs:

[0067] Fixed column (100) and adjustable column (200): Column modules of different lengths can be selected according to actual needs to meet different installation requirements.

[0068] Beam 1 (400) and Beam 2 (500): Beam modules of different lengths and specifications can be selected according to the size and weight of the multi-split outdoor unit.

[0069] 2. Extended Applications

[0070] The bracket device of this utility model is not only suitable for the installation of a single multi-split outdoor unit, but can also meet the installation needs of multiple devices through extended design:

[0071] Multiple equipment installation: Multiple bracket devices can be combined together to form a larger installation platform for installing multiple multi-split outdoor units.

[0072] Special site adaptation: For irregular sites or special installation requirements, the length or angle of crossbeam one (400) and crossbeam two (500) can be adjusted to make the support device better adapt to site conditions.

[0073] Example 4: Maintenance and Disassembly

[0074] The support device of this utility model adopts an assembled design, and the components are connected by bolts, which facilitates maintenance and disassembly.

[0075] 1. Maintenance: During equipment operation, if it is necessary to inspect or maintain the support device, simply loosen the corresponding bolts to inspect or replace each component.

[0076] 2. Disassembly and Replacement: If it is necessary to replace the multi-split outdoor unit or reinstall the bracket assembly, simply loosen all bolts to disassemble the components. For reinstallation, follow the installation steps described above.

[0077] Example 5: Specific installation steps and precautions

[0078] 1. Installation Steps

[0079] 1. Foundation preparation: Determine the installation location on the concrete foundation, and pre-embed the installation holes for expansion bolts (102) according to the dimensions of the fixed column (100). Ensure that the installation location is level and stable.

[0080] 2. Install the fixed column: Place the fixed column (100) on the pre-embedded hole and fix it to the concrete foundation with expansion bolts (102). Use a level to check if the fixed column is vertical, and adjust it if necessary.

[0081] 3. Install the adjusting column: Insert the adjusting column (200) into the fixed column (100). According to the installation height requirements of the multi-split outdoor unit, select the appropriate fixing threaded hole (201) and fix the adjusting column at the corresponding height position outside the fixed column with fixing bolts (300).

[0082] 4. Install crossbeam one and crossbeam two: Connect the bottom of crossbeam one (400) to the top of the adjusting column (200) with bolts, and connect the top of crossbeam one (500) to the bottom with bolts. Connect the top of crossbeam two (500) to the bottom of the multi-split outdoor unit with bolts to complete the installation of the entire bracket assembly.

[0083] 5. Inspection and Adjustment: Check that all bolts at the connection points are tight to ensure the stability of the entire support structure. If necessary, the height of the support column can be further adjusted to meet the optimal installation height requirements of the multi-split outdoor unit.

[0084] 2. Precautions

[0085] Expansion bolt installation: When installing expansion bolts (102), ensure that the bolts are fully expanded and firmly fixed to the concrete foundation to prevent loosening.

[0086] Verticality of fixed posts: When installing fixed posts (100), use a level to check the verticality of the posts to ensure that the posts are installed vertically.

[0087] Tighten the fixing bolts: When installing the adjusting column (200), ensure that the fixing bolts (300) are tightened to prevent the adjusting column from loosening during use.

[0088] Bolted connections: When installing crossbeam one (400) and crossbeam two (500), ensure that the bolt connections are secure to prevent loosening or falling off.

[0089] Equipment installation: When installing multi-split outdoor units, ensure that the equipment is installed securely to avoid damage to the support structure due to equipment shaking.

[0090] Example 6: Practical Application Case

[0091] 1. Case 1: Installation in a high-rise building

[0092] On the rooftop platform of a high-rise building, a multi-split outdoor unit needs to be installed. Due to limitations imposed by structural components such as the roof parapet wall, and considering the need for equipment maintenance and repair, the bracket device of this utility model allows for flexible adjustment of the installation height, ensuring the equipment is installed in the optimal position. By adjusting the adjustable column (200) up and down to the appropriate position, different installation heights can be achieved to meet the equipment's installation requirements.

[0093] 2. Case 2: Installation in Complex Sites

[0094] In an irregular site with uneven ground and limited space, a multi-split outdoor unit needs to be installed. Using the bracket device of this invention, the height of the column (200) can be adjusted to ensure the equipment is installed in a horizontal and stable position. By adjusting the column upwards to the appropriate height, the installation requirements of the equipment are met.

[0095] 3. Case 3: Equipment Replacement and Maintenance

[0096] In a certain building, it was necessary to replace the outdoor unit of a multi-split air conditioning system. Using the bracket device of this invention, the outdoor unit can be quickly removed by unscrewing the bolts. The bracket spacing is then adjusted according to the new outdoor unit's mounting dimensions before installation. The bracket device is reusable and does not require replacement, reducing maintenance costs.

[0097] in conclusion

[0098] This utility model discloses a prefabricated adjustable height outdoor unit bracket for multi-split air conditioning systems. Through its unique adjustable column design and prefabricated structure, it achieves flexible height adjustment and rapid installation, meeting the requirements of different site conditions and equipment. Its simple structure, convenient installation, and robust reliability give it significant practicality and promotional value. Through modular design and expanded applications, this device can adapt to various complex installation scenarios, providing an efficient and reliable solution for the installation and maintenance of multi-split outdoor units.

[0099] The above content provides a detailed description of the specific implementation method of the "Prefabricated Adjustable Height Multi-Split Air Conditioner Outdoor Unit Bracket Device", including structural composition, installation process, height adjustment, application scenarios, modular design, maintenance and disassembly, and practical application cases, to ensure that those skilled in the art can clearly understand and implement this technical solution.

[0100] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

Claims

1. A prefabricated adjustable height multi-split air conditioning unit outdoor unit bracket device, characterized in that, include: Fixed column; An adjusting column is located outside the fixed column; A fixing bolt, used to fix the adjusting column and the fixing column; A crossbeam one, which is located at the top of the adjusting column; The second crossbeam is located at the top of the first crossbeam; The adjusting column, crossbeam one, and crossbeam two are all connected by bolts.

2. The prefabricated adjustable height multi-split air conditioner outdoor unit bracket device as described in claim 1, characterized in that, Both the fixed column and the adjusting column are circular hollow structures, and the inner wall of the adjusting column slides in conjunction with the outer wall of the fixed column.

3. The prefabricated adjustable height multi-split air conditioning outdoor unit bracket device as described in claim 2, characterized in that, The adjusting column is provided with a plurality of fixing screw holes arranged in a vertical direction. The fixing bolt in claim 1 passes through the fixing screw holes and the corresponding screw holes on the fixing column to fix the adjusting column at different height positions outside the fixing column.

4. The prefabricated adjustable height multi-split air conditioner outdoor unit bracket device as described in claim 3, characterized in that, The first crossbeam is connected to the adjusting column by bolts. Both the first crossbeam and the second crossbeam are channel steel, and the first crossbeam and the second crossbeam are connected by bolts. The second crossbeam is connected to the outdoor unit of the multi-split air conditioning system by bolts.

5. The prefabricated adjustable height multi-split air conditioner outdoor unit bracket device as described in claim 4, characterized in that, Bolt connections are also used to achieve a stable connection between the second crossbeam and the multi-split outdoor unit, between the first crossbeam and the second crossbeam, and between the first crossbeam and the adjusting column.

6. The prefabricated adjustable height multi-split air conditioner outdoor unit bracket device as described in claim 5, characterized in that, The bottom of the fixed column is equipped with a reinforcing plate, and expansion bolts pass through the reinforcing plate to fix it to the concrete foundation to enhance the stability of the fixed column.