Central air conditioner box body easy to disassemble and assemble

By adopting a design that connects the plug and slot on the central air conditioning unit, and using a rotating handle and transmission assembly in conjunction with a compression spring, the access door can be quickly disassembled and assembled, solving the problem of time-consuming and laborious disassembly and assembly of access doors in the existing technology, and improving operational efficiency and convenience.

CN224188742UActive Publication Date: 2026-05-01CHONGQING SHANGJIA CONSTRUCTION & INSTALLATION ENGINEERING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING SHANGJIA CONSTRUCTION & INSTALLATION ENGINEERING CO LTD
Filing Date
2025-05-15
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

The access doors of existing central air conditioning units are secured with a large number of bolts, making disassembly and assembly time-consuming, labor-intensive, and inconvenient.

Method used

The design employs multiple inserts and slots for connection, and the maintenance door is quickly installed and removed via a rotating handle and transmission assembly. Combined with a compression spring, the maintenance door pops out, reducing the burden of manual operation.

Benefits of technology

It significantly improves the efficiency and convenience of disassembling and assembling inspection doors, simplifies the operation process, reduces disassembly time, and enhances the convenience and efficiency of maintenance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a central air conditioner box easy to disassemble and assemble, and particularly relates to the technical field of central air conditioner boxes, the central air conditioner box easy to disassemble and assemble comprises a box main body, an access hole is formed in the box main body, an access door is arranged in the access hole, a plurality of moving grooves are formed in the surface of the outer side wall of the access door, and an inserting block is arranged in each moving groove; the inner wall of the box body is provided with inserting grooves with the same number as the inserting blocks, the inserting blocks are connected with the inserting grooves in an inserted mode, a lead screw penetrates through each inserting block, the lead screws are in threaded connection with the inserting blocks, a rotating handle is arranged at the front end of the access door, and the rotating handle is connected with the multiple lead screws through a transmission assembly. According to the utility model, the access door and the box main body are stably connected through the plurality of insertion blocks, the access door is quickly disassembled and assembled by matching the rotary handle with the transmission assembly, and the access door is pushed to pop out from the access port through the compression spring, so that the operation burden of disassembling the access door by a worker is greatly reduced, and the convenience and efficiency of overhaul can be remarkably improved.
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Description

An easy-to-disassemble central air conditioning unit Technical Field

[0001] This utility model relates to the field of central air conditioning unit technology, and more specifically to a central air conditioning unit that is easy to disassemble and assemble. Background Technology

[0002] Central air conditioning is an air temperature control system that uses a medium to power the outdoor unit, which generates chilled / hot water. This water is then distributed to indoor terminal units for heat exchange with the indoor air, thus meeting the room's temperature control requirements. Central air conditioning offers uniform cooling and high comfort, maintaining indoor temperature fluctuations within 0.5℃. It saves space with an aesthetically pleasing design, concealed within the ceiling. It boasts a low failure rate and long lifespan, averaging around 20 years. It also offers high energy efficiency, employing a multi-split installation mode to reduce the number of outdoor units, and variable frequency technology further enhances energy savings. The central air conditioning unit provides a sealed space for the internal equipment, including fans, coolers, heaters, humidity controllers, and electrical control systems. This prevents dust and debris from entering and protects the equipment from external damage, while also providing some sound insulation to reduce operating noise.

[0003] For example, in a central air conditioning unit with prior art publication number CN214038890U, the utility model uses an electric motor to drive a blower for heat dissipation. The air volume is effectively delivered through the first vent and the second vent to dissipate heat from the main body, thereby reducing the operating temperature of the main body and maintaining a good heat dissipation effect.

[0004] Traditional central air conditioning units typically have access panels with access doors inside, allowing staff to easily access and inspect the internal components. However, these access doors are usually secured with numerous bolts, requiring significant time and effort to disassemble and reassemble, making the process time-consuming and labor-intensive. Therefore, this invention provides a central air conditioning unit that is easy to disassemble and reassemble. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a central air conditioning unit that is easy to disassemble and assemble. Multiple plugs are used to achieve a stable connection between the inspection door and the main body of the unit. With the help of a rotating handle and a transmission component, the inspection door can be quickly disassembled and assembled. Furthermore, a compression spring pushes the inspection door out of the inspection port, which greatly reduces the operational burden of disassembling the inspection door and can significantly improve the convenience and efficiency of maintenance, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a central air conditioning unit that is easy to disassemble and assemble, comprising a main body, an inspection port on the main body, an inspection door inside the inspection port, multiple moving grooves on the outer wall surface of the inspection door, each moving groove containing an insert block, slots the same number as the insert blocks on the inner wall of the main body, the insert blocks being inserted into the slots, each insert block containing a threaded rod threadedly connected to the insert block, a rotating handle at the front end of the inspection door, the rotating handle being connected to multiple threaded rods via a transmission assembly, and multiple circular grooves on the inner wall surface of the inspection door, each circular groove containing a compression spring.

[0007] In a preferred embodiment, a rubber sealing strip is provided between the inspection door and the inspection port to fill the gap between them, and the rubber sealing strip is located on the outside of the insertion block. The rubber sealing strip can improve the sealing performance between the inspection door and the inspection port.

[0008] In a preferred embodiment, the inspection door has an internal cavity, and the rotating handle and multiple lead screws all pass through the inspection door and extend into the cavity, facilitating the connection of the rotating handle and the lead screws using a transmission assembly.

[0009] In a preferred embodiment, the transmission assembly includes a main bevel gear fixedly sleeved on the rotary handle, and a secondary bevel gear meshing with the main bevel gear is fixedly sleeved on the outer wall of each lead screw. Both the main bevel gear and the secondary bevel gear are located in a cavity to avoid the main bevel gear and the secondary bevel gear being exposed and affecting their service life.

[0010] In a preferred embodiment, a spring pin is fixedly inserted through the rotary handle, and a socket adapted to the spring pin is opened on the front surface of the access door. The pin of the spring pin is inserted into the socket to prevent the rotary handle from rotating on its own and affecting the stability of the access door.

[0011] In a preferred embodiment, two handles are fixedly provided at the front end of the maintenance door, and the two handles are respectively located on both sides of the rotating handle. The handles facilitate the movement and placement of the maintenance door by the staff.

[0012] In a preferred embodiment, a positioning rod is fixedly provided inside each circular groove, and the compression spring is sleeved on the outside of the positioning rod. The positioning rod limits the compression spring and can prevent the compression spring from shifting to a certain extent.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] This utility model achieves a stable connection between the maintenance door and the main body of the box through multiple inserts, and uses a rotating handle in conjunction with a transmission component to achieve synchronous adjustment of the positions of multiple inserts, thereby enabling quick assembly and disassembly of the maintenance door.

[0015] In addition, the elastic force of multiple compression springs pushes the inspection door out of the inspection port, greatly reducing the workload of staff in disassembling the inspection door and fully opening the inspection port, providing ample operating space for internal maintenance work, thereby significantly improving the convenience and efficiency of maintenance. Attached Figure Description

[0016] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 is a schematic diagram showing the disassembly of the inspection door and the main body of the box in this utility model;

[0018] Figure 3 is a cross-sectional view of the main body of the box and the inspection door of this utility model;

[0019] Figure 4 is a schematic diagram of the transmission component structure of this utility model;

[0020] Figure 5 is a partial enlarged view of the back of the inspection door of this utility model;

[0021] Figure 6 is a front view of the inspection door of this utility model.

[0022] The attached diagram is labeled as follows: 1. Box body; 2. Inspection port; 3. Inspection door; 4. Moving groove; 5. Insert block; 6. Slot; 7. Lead screw; 8. Rotary handle; 9. Transmission assembly; 91. Main bevel gear; 92. Secondary bevel gear; 10. Circular groove; 11. Compression spring; 12. Rubber sealing strip; 13. Cavity; 14. Spring pin; 15. Insertion hole; 16. Handle; 17. Positioning rod. 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. 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.

[0024] Referring to Figures 1-6 in the specification, this utility model provides an easily disassembled and assembled central air conditioning unit, including a main body 1. The main body 1 has an inspection port 2, and an inspection door 3 is provided inside the inspection port 2. Multiple moving grooves 4 are provided on the outer wall surface of the inspection door 3, and each moving groove 4 has an insert block 5 inside. The inner wall of the main body 1 has slots 6 with the same number of slots as the insert blocks 5. The insert blocks 5 are inserted into the slots 6. Each insert block 5 has a threaded rod 7 passing through it, and the threaded rod 7 is threadedly connected to the insert block 5.

[0025] Next, a rotating handle 8 is provided at the front end of the inspection door 3. A spring pin 14 is fixedly inserted through the rotating handle 8. A socket 15 adapted to the spring pin 14 is opened on the front surface of the inspection door 3. The pin of the spring pin 14 is inserted into the socket 15 to prevent the rotating handle 8 from rotating on its own and affecting the stability of the inspection door 3.

[0026] Furthermore, a transmission assembly 9 is used to connect the rotating handle 8 to multiple lead screws 7, which facilitates the simultaneous adjustment of the positions of multiple insert blocks 5 by the operator. A cavity 13 is provided inside the inspection door 3. The rotating handle 8 and multiple lead screws 7 all pass through the inspection door 3 and extend into the cavity 13. The transmission assembly 9 includes a main bevel gear 91 fixedly sleeved on the rotating handle 8. A secondary bevel gear 92 that meshes with the main bevel gear 91 is fixedly sleeved on the outer wall of each lead screw 7. The main bevel gear 91 and the secondary bevel gear 92 are both located in the cavity 13 to avoid the main bevel gear 91 and the secondary bevel gear 92 being exposed and affecting their service life.

[0027] The inner wall surface of the inspection door 3 is provided with a plurality of circular grooves 10, and a compression spring 11 is connected inside each circular groove 10. A positioning rod 17 is fixed inside each circular groove 10. The compression spring 11 is sleeved on the outside of the positioning rod 17. The positioning rod 17 is used to limit the compression spring 11, which can prevent the compression spring 11 from shifting to a certain extent.

[0028] When the staff needs to disassemble the inspection door 3 to inspect the inside of the main body 1, firstly, the pin of the spring pin 14 is removed from the insertion hole 15. Then, the rotating handle 8 is turned, which drives multiple secondary bevel gears 92 to rotate through the main bevel gear 91. When the secondary bevel gears 92 drive the lead screw 7 inside them to rotate, the insert 5 on the lead screw 7 moves slowly under the limit of the moving groove 4 and moves out of the slot 6 on the inner wall of the inspection port 2. At this time, the inspection door 3 is not connected to the inspection port 2. When the multiple compressed springs 11 are restored, they generate elastic force and push the inspection door in the opposite direction. Door 3 is moved out of the inspection port 2, making it easy for staff to quickly remove the inspection door 3 from the inspection port 2 and fully expose the inspection port 2 (as shown in Figure 2). This facilitates the staff to inspect the central air conditioning parts inside the main body 1. After the inspection is completed, the staff inserts the inspection door 3 into the inspection port 2, and then rotates the handle 8 in the opposite direction to insert the multiple plugs 5 into the multiple slots 6 respectively, thus fixing the inspection door 3. The operation is simple, no bolts are required for fixing, and the installation and disassembly are very quick and easy.

[0029] Referring to Figure 2 in the instruction manual, a rubber sealing strip 12 is provided between the inspection door 3 and the inspection port 2 to fill the gap between them. The rubber sealing strip 12 is located on the outside of the insert block 5. The rubber sealing strip 12 can improve the sealing between the inspection door 3 and the inspection port 2. The rubber sealing strip 12 can be installed on the inspection door 3 by adhesive. After frequent disassembly of the inspection door 3, the rubber sealing strip 12 can be peeled off and replaced.

[0030] As shown in Figure 1, two handles 16 are fixedly provided at the front end of the inspection door 3. The two handles 16 are respectively located on both sides of the rotating handle 8. The handles 16 make it easier for staff to move and place the inspection door 3, making it more time-saving and labor-saving to use.

[0031] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A central air conditioning unit that is easy to disassemble and assemble, comprising a main body (1), wherein the main body (1) has an inspection port (2), and the inspection port (2) has an inspection door (3) inside, characterized in that: The outer wall surface of the inspection door (3) is provided with multiple moving grooves (4), and each moving groove (4) is provided with a plug (5). The inner wall of the box body (1) is provided with slots (6) in the same number as the plugs (5). The plugs (5) are inserted into the slots (6). Each plug (5) is provided with a threaded rod (7) through it, and the threaded rod (7) is threadedly connected to the plug (5). The front end of the inspection door (3) is provided with a rotating handle (8), and the rotating handle (8) is connected to multiple threaded rods (7) through a transmission assembly (9). The inner wall surface of the inspection door (3) is provided with multiple circular grooves (10), and each circular groove (10) is connected with a compression spring (11).

2. The easily disassembled central air conditioning unit according to claim 1, characterized in that: A rubber sealing strip (12) is provided between the inspection door (3) and the inspection port (2) to fill the gap between them, and the rubber sealing strip (12) is located on the outside of the insert block (5).

3. The easily disassembled central air conditioning unit according to claim 1, characterized in that: The inspection door (3) has a cavity (13) inside, and the rotating handle (8) and multiple lead screws (7) all pass through the inspection door (3) and extend into the cavity (13).

4. A central air conditioning unit that is easy to disassemble and assemble according to claim 3, characterized in that: The transmission assembly (9) includes a main bevel gear (91) fixedly sleeved on the rotating handle (8), and a secondary bevel gear (92) that meshes with the main bevel gear (91) is fixedly sleeved on the outer wall of each screw (7). The main bevel gear (91) and the secondary bevel gear (92) are both located in the cavity (13).

5. A central air conditioning unit that is easy to disassemble and assemble according to claim 1, characterized in that: A spring pin (14) is fixedly inserted through the rotating handle (8), and a socket (15) adapted to the spring pin (14) is opened on the front surface of the inspection door (3). The pin of the spring pin (14) is inserted into the socket (15).

6. A central air conditioning unit that is easy to disassemble and assemble according to claim 1, characterized in that: The inspection door (3) is fixedly provided with two handles (16) at the front end, and the two handles (16) are respectively located on both sides of the rotating handle (8).

7. A central air conditioning unit that is easy to disassemble and assemble according to claim 1, characterized in that: Each circular groove (10) is fixedly provided with a positioning rod (17), and the compression spring (11) is sleeved on the outside of the positioning rod (17).

Citation Information

Patent Citations

  • Central air conditioner box

    CN214038890U