Protective device for installation of heating ventilation air conditioner

By combining the design of slide rails and mounting brackets with return springs and limit buckles, the problems of inconvenient installation and fixing risks of HVAC outdoor units are solved, achieving multi-model compatibility and efficient fixing, and improving installation safety and equipment lifespan.

CN224261839UActive Publication Date: 2026-05-19HENAN YILIANG ENVIRONMENTAL EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN YILIANG ENVIRONMENTAL EQUIP CO LTD
Filing Date
2025-07-16
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing protective devices for HVAC outdoor units present problems during installation, such as inconvenience for workers to adjust them, incompatibility with multiple models and sizes, and risks associated with the fixing method and the potential for loss of bolts and nuts.

Method used

It adopts a sliding rail and mounting bracket structure, combined with the design of return spring, limit cylinder and buckle. The sliding mounting bracket can be adjusted to adapt to different models and sizes of HVAC outdoor units, and it is fixed by the combination of corner protectors and ceiling, eliminating the need for bottom bolt and nut fixing. The ceiling is fixed by magnets to avoid wind blowing and ice and snow corrosion.

Benefits of technology

It enables the stable installation of various HVAC outdoor units, reduces installation difficulty and risk, improves maintenance efficiency, avoids the loss of bolts and nuts, and extends the service life of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a protective device for installation of a heating ventilation air conditioner, which relates to the technical field of heating ventilation air conditioner protection and comprises an installation base, two sliding rails are horizontally arranged on one side of the installation base, two installation frames are connected in the sliding rails in a sliding mode, and one side of the bottom of each installation frame is fixedly connected with a sleeve. A connecting rod is slidably connected into the sleeve, a fixing frame is fixedly connected to the other end of the connecting rod, a limiting cylinder is hinged to one side of the top of the mounting frame, and a limiting rod is hinged to one side of the top of the fixing frame. According to the protection device, the installation mode of the heating ventilation air conditioner outdoor unit is optimized, the size of the heating ventilation air conditioner outdoor unit can be matched by sliding the installation frame to compress the reset spring in the installation process, clamping and locking are conducted by adjusting the buckle, the protection device can be compatible with heating ventilation air conditioner outdoor units of various models, fixing through bolts and nuts at the bottom is omitted, and installation is convenient. The difficulty and risk degree of installation work are reduced, the maintenance efficiency of the heating ventilation air conditioner outdoor unit is improved, and the problem that bolts and nuts are lost cannot occur.
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Description

Technical Field

[0001] This utility model relates to the field of HVAC protection technology, specifically a protective device for HVAC installation. Background Technology

[0002] Heating, ventilation, and air conditioning (HVAC) is an air conditioner that provides heating, ventilation, and air conditioning functions. Its main functions include heating, ventilation, and air conditioning. During the installation of an HVAC system, various components, equipment, and pipes need to be connected together to form a complete system. These components and equipment include air conditioning units, air ducts, water pipes, valves, controllers, etc. These accessories usually need to be protected by protective structures such as protective plates and covers to prevent damage to the internal components of the air conditioner.

[0003] Chinese utility model patent CN222670225U discloses a protective component for an HVAC outdoor unit. This component uses a first buffer pad to cushion the fixed plate, reducing the transmission of vibrations generated by the outdoor unit's operation to the support plate. An mounting ring secures the outdoor unit to the fixed plate surface. A connecting plate supports and positions the protective top cover. An eccentric wheel rotates, causing the protective top cover to slide up and down, shaking off ice and snow from its surface and preventing accumulation, thus improving the device's protective capability. However, like traditional protective devices, this one uses bolts to fix the bottom of the outdoor unit. Workers need to adjust their position to be level with or below the protective device before installation, posing a risk during the process. Furthermore, the fixed size of the fixed plate makes it incompatible with various sizes of HVAC outdoor units. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a protective device for HVAC installation, which solves the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a protective device for HVAC installation, comprising a mounting base, two horizontally arranged slide rails on one side of the mounting base, two mounting brackets slidably connected inside the slide rails, a sleeve fixedly connected to one bottom side of the mounting bracket, a connecting rod slidably connected inside the sleeve, a fixing bracket fixedly connected to the other end of the connecting rod, a limiting cylinder hinged to one top side of the mounting bracket, a limiting rod hinged to one top side of the fixing bracket, the limiting rod slidably connected inside the limiting cylinder, and a canopy provided on the top of the mounting bracket and the fixing bracket.

[0008] Optionally, a slide rod is fixedly connected inside the slide rail, and the mounting bracket is sleeved on the outside of the slide rod. A return spring is sleeved on both ends of the slide rod, and the two ends of the return spring are fixedly connected to the outside of the mounting bracket and the inside of one end of the slide rail, respectively.

[0009] Optionally, the bottom of the mounting bracket and the top of the fixing bracket are both fixedly connected with corner protectors. The inner side of the corner protector faces upward and is located above the sleeve and the connecting rod. Two ribs are fixedly connected between the bottom of the corner protector and the fixing bracket and the mounting bracket. The two ribs are located on both sides of the connecting rod and the sleeve, respectively. An L-shaped rubber strip is glued to the bottom of the inner side of the corner protector.

[0010] Optionally, the limiting cylinder has several limiting holes on one side, the several through holes are arranged in a row array, the end of the limiting rod has a groove, a buckle is slidably connected inside the groove, a buckle spring is fixedly connected between the buckle and the bottom of the groove, and a chamfer is provided on the top of the buckle near the limiting cylinder.

[0011] Optionally, mounting holes are provided at all four corners of the mounting base, and trapezoidal blocks are fixedly connected to both ends of one side of the mounting base. A sliding groove is vertically provided in the trapezoidal block, and an L-shaped rod is slidably connected in the sliding groove. The top of the L-shaped rod is fixedly connected to the ceiling.

[0012] Optionally, the canopy has a quarter-circle structure on both sides, with crossbeams inside that are fixedly connected between L-shaped rods, and a magnet is fixedly connected to the bottom center of the crossbeams.

[0013] This utility model provides a protective device for HVAC installation, which has the following beneficial effects:

[0014] 1. This protective device for HVAC installation, through the setting of a return spring, a limiting cylinder and a limiting rod, allows the return spring to be compressed by sliding the mounting bracket during installation to adapt to the size of the HVAC outdoor unit. The length of the limiting rod in the limiting cylinder is adjusted and then locked with a buckle, so that the fixing bracket is fixed relative to the mounting bracket, thereby stabilizing the entire protective device and making it compatible with various models of HVAC outdoor units.

[0015] 2. This protective device for HVAC installation optimizes the installation method of HVAC outdoor units. By locking the front, rear, left, right, and bottom freedom of the HVAC outdoor unit through the corner protectors installed on the mounting bracket and fixing bracket, and finally relying on the downward pressure of the ceiling to lock the upward freedom of the HVAC outdoor unit, the outdoor unit is fixedly installed. This eliminates the need for bottom bolts and nuts, allowing workers to simply adjust the clip positions, place the outdoor unit, and finally install the ceiling. This reduces the difficulty and risk of installation work, improves the maintenance efficiency of the HVAC outdoor unit, and prevents the problem of lost bolts and nuts.

[0016] 3. This protective device for HVAC installation restricts the L-shaped rod to slide only up and down through the groove set in the trapezoidal block, preventing the ceiling from swaying left and right. The magnet at the bottom of the crossbeam can fix the crossbeam to the top of the HVAC outdoor unit, preventing the ceiling from sliding up and down due to wind, colliding with the HVAC outdoor unit, generating noise and damaging the HVAC outdoor unit. After the ceiling blocks rain and snow, the rain and snow will slide down along the quarter-circle structure on both sides, reducing the corrosive effect of ice and snow on the HVAC outdoor unit and improving the service life of the HVAC outdoor unit. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a partial cross-sectional view of the mounting base of this utility model;

[0019] Figure 3 This is a schematic diagram of the mounting bracket and fixing bracket of this utility model;

[0020] Figure 4 This is a partial cross-sectional view of the limiting cylinder and limiting rod of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the roof of this utility model.

[0022] In the diagram: 1. Mounting base; 101. Slide rail; 102. Slide rod; 103. Mounting hole; 104. Trapezoidal block; 105. Slide groove; 2. Mounting bracket; 201. Sleeve; 3. Fixing bracket; 301. Connecting rod; 4. Limiting cylinder; 401. Limiting hole; 5. Limiting rod; 501. Groove; 502. Buckle; 503. Buckle spring; 6. Canopy; 601. L-shaped rod; 602. Crossbeam; 603. Magnet; 7. Corner protector; 8. Rib plate; 9. L-shaped rubber strip; 10. Return spring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Example

[0025] Please see Figures 1 to 5The present invention provides a technical solution: a protective device for HVAC installation, including a mounting base 1, two slide rails 101 horizontally arranged on one side of the mounting base 1, two mounting brackets 2 slidably connected inside the slide rails 101, a sleeve 201 fixedly connected to one side of the bottom of the mounting bracket 2, a connecting rod 301 slidably connected inside the sleeve 201, a fixing bracket 3 fixedly connected to the other end of the connecting rod 301, a limiting cylinder 4 hinged to one side of the top of the mounting bracket 2, a limiting rod 5 hinged to one side of the top of the fixing bracket 3, the limiting rod 5 slidably connected inside the limiting cylinder 4, and a canopy 6 provided on the top of the mounting bracket 2 and the fixing bracket 3.

[0026] Please see Figures 1 to 2 A slide rod 102 is fixedly connected inside the slide rail 101. The mounting bracket 2 is sleeved on the outside of the slide rod 102. A return spring 10 is sleeved on both ends of the slide rod 102. The two ends of the return spring 10 are fixedly connected to the outside of the mounting bracket 2 and the inside of one end of the slide rail 101, respectively.

[0027] Specifically, by compressing the return spring 10 through the sliding mounting bracket 2, the distance between the mounting brackets 2 is expanded, enabling the protective device to adapt to different models and sizes of HVAC outdoor units. Furthermore, since the return spring 10 is compressed, it applies an inward pushing force to the mounting bracket 2, which enables the mounting bracket 2 to clamp the HVAC outdoor unit, thus improving installation stability.

[0028] Please see Figure 3 The bottom of the mounting bracket 2 and the top of the fixing bracket 3 are both fixedly connected with corner protectors 7. The inner side of the corner protectors 7 faces upward and is located above the sleeve 201 and the connecting rod 301. Two ribs 8 are fixedly connected between the bottom of the corner protectors 7 and the fixing bracket 3 and the mounting bracket 2. The two ribs 8 are located on both sides of the connecting rod 301 and the sleeve 201 respectively. An L-shaped rubber strip 9 is glued to the bottom of the inner side of the corner protectors 7.

[0029] Specifically, the use of the corner protector 7 can limit the movement of the HVAC outdoor unit to the greatest extent while using less material, effectively reducing the overall weight of the protective device, avoiding stress fatigue and thus improving the service life of the protective device. The L-shaped rubber strip 9 bonded to the bottom inner side of the corner protector 7 can effectively buffer the vibration caused by the fan rotation of the HVAC outdoor unit, preventing the bolts of the mounting base 1 from loosening due to vibration. The rib plate 8 set at the bottom of the corner protector 7 can effectively improve the structural strength of the mounting bracket 2 and the fixing bracket 3.

[0030] Please see Figure 4 The limiting cylinder 4 has several limiting holes 401 on one side, and the limiting holes 401 are arranged in a row. The end of the limiting rod 5 has a groove 501. A buckle 502 is slidably connected inside the groove 501. A buckle spring 503 is fixedly connected between the buckle 502 and the bottom of the groove 501. The top of the buckle 502 has a chamfer on the side near the limiting cylinder 4.

[0031] Specifically, the top of the buckle 502 near the limiting cylinder 4 has a chamfer, which allows the buckle 502 to be easily pressed into the groove 501 by the pressure of the limiting hole 401, thereby adjusting the position of the buckle 502. The other side of the buckle 502 is a right angle, which can form a restriction in the limiting hole 401, preventing the movement of the limiting rod 5, so that the entire protective device is fixed, eliminating the need for bottom bolt and nut fixing. This allows the staff to simply adjust the position of the buckle 502 and put it into the HVAC outdoor unit, reducing the risk level during the work process and preventing the problem of bolts and nuts being lost.

[0032] Please see Figure 2 and Figure 5 Mounting base 1 has mounting holes 103 at each of its four corners. Trapezoidal blocks 104 are fixedly connected to both ends of one side of mounting base 1. A vertical groove 105 is provided in the trapezoidal block 104. An L-shaped rod 601 is slidably connected in the groove 105. The top of the L-shaped rod 601 is fixedly connected to the ceiling 6. The ceiling 6 has a quarter-circle structure on both sides. A crossbeam 602 is fixedly connected between the L-shaped rods 601 inside. A magnet 603 is fixedly connected to the bottom center of the crossbeam 602.

[0033] Specifically, the groove 105 inside the trapezoidal block 104 restricts the freedom of movement of the ceiling 6, the crossbeam 602 can serve as a frame to improve the structural strength of the ceiling 6, and the magnet 603 at the bottom of the crossbeam 602 can fix the crossbeam 602 to the top of the HVAC outdoor unit, preventing the ceiling 6 from being blown by the wind and sliding up and down, colliding with the HVAC outdoor unit, generating noise and damaging the HVAC outdoor unit. After the ceiling blocks rain and snow, the rain and snow can slide down along the quarter-circle structure on both sides, reducing the corrosive ability of ice and snow on the HVAC outdoor unit and improving the service life of the HVAC outdoor unit.

[0034] During use, first measure the length and width of the HVAC outdoor unit with a measuring tape. Adjust the position of the buckle 502 within the limiting hole 401 so that the distance between the fixing bracket 3 and the mounting bracket 2 is the same as the width of the HVAC outdoor unit. Move the protective device to the designated installation position and ensure that the smooth side of the mounting base 1 is flush against the wall. Fix the mounting base 1 to the wall by inserting expansion screws into the mounting hole 103. Slide the mounting bracket 2 to compress the return spring 10 so that the distance between the two mounting brackets 2 is the same as the length of the HVAC outdoor unit. Then place the HVAC outdoor unit on the L-shaped rubber strip 9 of the corner protector 7. Effectively buffering the vibration generated by the outdoor unit fan operation, loosening the mounting bracket 2 allows the return spring 10 to rebound and press against the HVAC outdoor unit. Finally, insert the L-shaped rod 601 of the canopy 6 into the slide groove 104 from the top, so that the magnet 603 at the bottom of the crossbeam 602 is attracted to the top of the HVAC outdoor unit. Under the action of gravity, the canopy 6 restricts the vertical movement of the HVAC outdoor unit, preventing the canopy 6 from sliding up and down and colliding with the HVAC outdoor unit, generating noise and damaging the HVAC outdoor unit. After the canopy 6 blocks rain and snow, the rain and snow will slide down along the quarter-circle structure on both sides, reducing the corrosive ability of ice and snow on the HVAC outdoor unit and improving the service life of the HVAC outdoor unit.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A protective device for HVAC installation, comprising a mounting base (1), characterized in that: Two slide rails (101) are horizontally arranged on one side of the mounting base (1). Two mounting brackets (2) are slidably connected inside the slide rails (101). A sleeve (201) is fixedly connected to one side of the bottom of the mounting bracket (2). A connecting rod (301) is slidably connected inside the sleeve (201). A fixing bracket (3) is fixedly connected to the other end of the connecting rod (301). A limiting cylinder (4) is hinged to one side of the top of the mounting bracket (2). A limiting rod (5) is hinged to one side of the top of the fixing bracket (3). The limiting rod (5) is slidably connected inside the limiting cylinder (4). A canopy (6) is provided on the top of the mounting bracket (2) and the fixing bracket (3).

2. The protective device for HVAC installation according to claim 1, characterized in that: The slide rail (101) is fixedly connected to a slide rod (102). The mounting bracket (2) is sleeved on the outside of the slide rod (102). A return spring (10) is sleeved on both ends of the slide rod (102). The two ends of the return spring (10) are fixedly connected to the outside of the mounting bracket (2) and the inside of one end of the slide rail (101), respectively.

3. The protective device for HVAC installation according to claim 1, characterized in that: The bottom of the mounting bracket (2) and the top of the fixing bracket (3) are both fixedly connected with corner protectors (7). The inner side of the corner protector (7) faces upward and is located above the sleeve (201) and the connecting rod (301). Two rib plates (8) are fixedly connected between the bottom of the corner protector (7) and the fixing bracket (3) and the mounting bracket (2). The two rib plates (8) are located on both sides of the connecting rod (301) and the sleeve (201), respectively. An L-shaped rubber strip (9) is glued to the bottom of the inner side of the corner protector (7).

4. The protective device for HVAC installation according to claim 1, characterized in that: The limiting cylinder (4) has several limiting holes (401) on one side, and the several limiting holes (401) are arranged in a row. The end of the limiting rod (5) has a groove (501) on one side. A buckle (502) is slidably connected inside the groove (501). A buckle spring (503) is fixedly connected between the buckle (502) and the bottom of the groove (501). The top of the buckle (502) has a chamfer on the side near the limiting cylinder (4).

5. A protective device for HVAC installation according to claim 1, characterized in that: The mounting base (1) has mounting holes (103) at all four corners. Trapezoidal blocks (104) are fixedly connected to both ends of one side of the mounting base (1). A sliding groove (105) is vertically opened in the trapezoidal block (104). An L-shaped rod (601) is slidably connected in the sliding groove (105). The top of the L-shaped rod (601) is fixedly connected to the ceiling (6).

6. A protective device for HVAC installation according to claim 1, characterized in that: The canopy (6) has a quarter-circle structure on both sides, with a crossbeam (602) inside that is fixedly connected between L-shaped rods (601). A magnet (603) is fixedly connected to the bottom center of the crossbeam (602).