Protective rack for rail transit air conditioning unit

By designing a protective frame with adjustable mounting holes and a size adjustment mechanism, the problems of difficult installation and insufficient size adjustment in the existing technology are solved, enabling flexible installation and efficient adaptation of air conditioning units.

CN224241017UActive Publication Date: 2026-05-15CHANGZHOU JIEJIEGAO ELECTRONICS TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU JIEJIEGAO ELECTRONICS TECH CO LTD
Filing Date
2025-08-05
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

The protective frames of existing rail transit air conditioning units cannot flexibly adapt to different slot layouts, resulting in installation difficulties and increased costs. Furthermore, their size adjustment capabilities are insufficient, making it difficult to adapt to diverse installation scenarios and unit size requirements.

Method used

A protective frame including a first installation mechanism and an adjustment mechanism was designed, which enables flexible installation of air conditioning units of different sizes through adjustable mounting holes and size adjustment mechanism.

Benefits of technology

It enables flexible installation and size adjustment of the protective frame, simplifies the installation process, reduces costs, and improves the versatility and installation efficiency of the frame.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224241017U_ABST
    Figure CN224241017U_ABST
Patent Text Reader

Abstract

The utility model relates to the related technical field of air conditioning units, in particular to a protective rack for a rail transit air conditioning unit, which comprises a base, a first mounting mechanism and an adjusting mechanism are arranged on the base, the first mounting mechanism comprises a first rotating rod, and a second rotating rod is arranged on the first rotating rod. The first rotating rod is rotationally connected to the inner wall of the base through a bearing, positive and negative threads are arranged on the first rotating rod, a mounting block is connected to the first rotating rod in a threaded mode, a mounting plate is fixedly mounted at the top end of the mounting block, and a first mounting through hole is formed in the mounting plate. By arranging the first mounting mechanism, the purpose of conveniently adjusting the distance between the first mounting through holes in the two sides is achieved, mounting of air conditioning units of different sizes is facilitated, by arranging the second mounting mechanism, the positions of the second mounting through holes are conveniently adjusted, mounting of the protective rack is facilitated, and by arranging the adjusting mechanism, the mounting efficiency is improved. The purpose of adjusting the size of the protective rack is achieved, and installation of air conditioning units of different sizes is facilitated.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the technical field of air conditioning units, and in particular to a protective frame for air conditioning units in rail transit. Background Technology

[0002] In the rail transit sector, air conditioning units are crucial equipment for ensuring suitable temperature and humidity and good air quality inside carriages. Their stable operation directly impacts passenger travel experience and operational safety. However, the design of existing protective frames for rail transit air conditioning units has significant limitations. On the one hand, due to the differences in slot positions and installation interface dimensions among air conditioning units produced by different manufacturers, the spacing between the first mounting holes on both sides of traditional protective frames is fixed, making it difficult to flexibly adapt to various slot layouts. This necessitates additional processing of the frame or the use of adapters during installation, increasing installation difficulty and cost. Furthermore, structural modifications may affect the frame's load-bearing capacity and corrosion resistance. Additionally, the mounting holes connecting the protective frame to the mounting foundation are often fixed, making it difficult to adapt to diverse installation scenarios and further limiting the versatility of the protective frame. On the other hand, with the diversification of rail transit vehicle models, the sizes and specifications of air conditioning units are becoming increasingly diverse. Existing protective frames mostly adopt fixed frame structures with insufficient size adjustment capabilities, making it difficult to meet the rapid installation needs of air conditioning units of different lengths and widths. Often, customized frames are required for specific models, leading to extended production cycles and complex inventory management.

[0003] Therefore, we designed a protective frame for rail transit air conditioning units to meet the needs of practical applications. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned shortcomings in the existing technology by proposing a protective frame for air conditioning units in rail transit.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A protective frame for rail transit air conditioning units is designed, comprising a base, characterized in that: a first mounting mechanism and a second mounting mechanism are provided on the base, and an adjustment mechanism is provided on the base; the first mounting mechanism includes a first rotating rod, which is rotatably connected to the inner wall of the base via a bearing, and the first rotating rod is provided with positive and negative threads; a mounting block is threadedly connected to the first rotating rod, and a mounting plate is fixedly installed at the top of the mounting block; a first mounting through hole is provided on the mounting plate; the second mounting mechanism includes a receiving block, which is fixedly installed on the base, and a second rotating rod is rotatably connected to the receiving block; the second rotating rod is provided with positive and negative threads.

[0007] The adjustment mechanism includes a column, which is fixedly installed on a base. A sliding groove is provided at the top of the column, and a lifting rod is slidably arranged on the inner wall of the sliding groove. A top frame is fixedly installed at the top of the lifting rod. A first through hole is provided on the column, and a bolt is inserted into the first through hole. A nut is threaded to one end of the bolt.

[0008] In detail, the first rotating rod is horizontally positioned, one end of the first rotating rod passes through the surface of the base and is fixedly mounted with a first handle, the first handle is in the shape of a circular plate, and the first handle is vertically positioned.

[0009] In detail, there are two mounting blocks, both of which are square blocks. The mounting plate is a strip-shaped plate and is horizontally positioned. The first mounting through hole is a cylindrical through hole.

[0010] In detail, the base has a limiting groove, which is a strip-shaped groove. A limiting block is slidably provided on the inner wall of the limiting groove. The limiting block is a square block, and the top of the limiting block is fixedly connected to the mounting plate.

[0011] In detail, a second handle is fixedly installed at one end of the second rotating rod, and a slider is threadedly connected to the second rotating rod. The slider slides on the surface of the base, and a second mounting through hole is provided on the slider.

[0012] In detail, there are four columns, all of which are square rods and are vertically arranged. The lifting rods are also square rods and are vertically arranged. There are four lifting rods in total.

[0013] In detail, the surface of the lifting rod is provided with a second through hole, which is horizontally positioned and has a cylindrical shape.

[0014] Core function: During the installation of the protective frame, the second handle can be turned to adjust the spacing between the second mounting through holes according to the condition of the mounting surface. The second handle drives the second rotating rod to rotate. The second rotating rod is provided with positive and negative threads, which will drive the sliders on both sides to slide towards each other along the surface of the base until the second mounting through holes on the sliders move to the appropriate position. With the bolts, the installation of the protective frame is convenient.

[0015] When it is necessary to install an air conditioning unit inside the protective frame, according to the size of the air conditioning unit, first remove the nut at one end of the bolt with a tool, and then slide the lifting rod along the inner wall of the slide groove. When the lifting rod moves, it will drive the top frame to move vertically until the top frame moves to a suitable height position and the first through hole and the second through hole in the same plane are aligned. Then, the bolt is passed through the first through hole and the second through hole, and the nut is threaded onto the bolt, thereby achieving the purpose of fixing the lifting rod into the slide groove. Through the above settings, it is easy to adjust the size of the protective frame and facilitate the installation of air conditioning units of different sizes.

[0016] After the protective frame size is adjusted, turn the first handle according to the mounting hole situation of the air conditioning unit. The first handle drives the first rotating rod to rotate. The first rotating rod is provided with positive and negative threads, which will drive the mounting blocks on both sides to move. When the mounting blocks on both sides move, they will drive the mounting plates on both sides to move. Under the limiting action of the limiting blocks and limiting grooves, the mounting plates on both sides will move towards each other until the first mounting through holes on the mounting plates on both sides move to a suitable distance, which is conducive to the installation of air conditioning units of different sizes.

[0017] The design scheme proposed in this utility model has the following beneficial effects in application:

[0018] 1. The first mounting mechanism facilitates the adjustment of the distance between the first mounting holes on both sides, which is beneficial for the installation of air conditioning units of different sizes. The second mounting mechanism facilitates the adjustment of the position of the second mounting holes, which is beneficial for the installation of the protective frame.

[0019] 2. The adjustable mechanism allows for the adjustment of the protective frame size, facilitating the installation of air conditioning units of different sizes. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the base of this utility model;

[0022] Figure 3 This is a schematic diagram of the mounting plate of this utility model;

[0023] Figure 4 This is a schematic diagram of the column of this utility model;

[0024] Figure 5 This is a schematic diagram of the lifting rod of this utility model;

[0025] Figure 6 This is a schematic diagram of the bolt of this utility model;

[0026] Figure 7 This is a schematic diagram of the groove of this utility model.

[0027] In the diagram: 1. Base; 21. First handle; 22. Mounting plate; 23. Limiting groove; 24. First rotating rod; 25. First mounting through hole; 26. Limiting block; 27. Mounting block; 31. Column; 32. First through hole; 33. Top frame; 34. Bolt; 35. Nut; 36. Lifting rod; 37. Second through hole; 38. Slide groove; 41. Sliding block; 42. Second rotating rod; 43. Receiving block; 44. Second handle; 45. Second mounting through hole. Detailed Implementation

[0028] 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.

[0029] Reference Figures 1-7 A protective frame for rail transit air conditioning units includes a base 1, which is rectangular in shape. The base 1 serves to support the installation of an adjustment mechanism and a first mounting mechanism. The base 1 has a first mounting mechanism and a second mounting mechanism. The first mounting mechanism facilitates adjustment of the spacing between the two first mounting through holes 25 on both sides, allowing for the installation of air conditioning units of different sizes. The base 1 also has an adjustment mechanism to adjust the size of the protective frame, further facilitating the installation of air conditioning units of different sizes. The first mounting mechanism includes a first rotating rod 24, which is rotatably connected to the inner wall of the base 1 via a bearing. The first rotating rod 24 has positive and negative threads. 4. To facilitate the movement of the mounting blocks 27 on both sides, the first rotating rod 24 is threadedly connected to the mounting block 27. The mounting block 27 is used to support the installation of the mounting plate 22. The top of the mounting block 27 is fixedly mounted with the mounting plate 22. The mounting plate 22 is used to support the opening of the first mounting through hole 25. The mounting plate 22 has the first mounting through hole 25, which is used to install the air conditioning unit. The second mounting mechanism includes a receiving block 43, which is fixedly mounted on the base 1. The receiving block 43 is rotatably connected to the second rotating rod 42. The second rotating rod 42 is provided with positive and negative threads. By providing the second rotating rod 42 with positive and negative threads, it is easy to drive the receiving blocks 43 on both sides to slide in opposite directions along the surface of the base 1.

[0030] The adjustment mechanism includes a column 31, which is fixedly installed on the base 1. The column 31 is designed to support the opening of the slide groove 38. The top of the column 31 has a slide groove 38, which is square in shape. The slide groove 38 is designed to support the sliding of the lifting rod 36. The lifting rod 36 is slidably mounted on the inner wall of the slide groove 38. The lifting rod 36 is designed to support the installation of the top frame 33. The top of the lifting rod 36 is fixedly installed on the top of the top frame 33. The column 31 has a first through hole 32, which is designed to support the insertion of the bolt 34. The bolt 34 is inserted into the first through hole 32 and is designed to support the threaded installation of the nut 35. One end of the bolt 34 is threadedly connected to the nut 35, which is designed to fix the bolt 34 into the first through hole 32.

[0031] It should be further explained that the first rotating rod 24 is set horizontally, and one end of the first rotating rod 24 passes through the surface of the base 1 and is fixedly installed with the first handle 21. The first handle 21 is in the shape of a circular plate and is set vertically. The first handle 21 is set to rotate the first rotating rod 24.

[0032] It should be further noted that there are two mounting blocks 27, both of which are square blocks. The mounting plate 22 is a strip plate and is set horizontally. The first mounting through hole 25 is a cylindrical through hole and is used for the installation of the air conditioning unit.

[0033] It should be further explained that a limiting groove 23 is provided on the base 1. The limiting groove 23 is a strip-shaped groove. The limiting groove 23 is set to support the sliding of the limiting block 26. The limiting block 26 is slidably set on the inner wall of the limiting groove 23. The limiting block 26 is a square block. The top of the limiting block 26 is fixedly connected to the mounting plate 22. By setting the limiting block 26 and the limiting groove 23, the purpose of limiting the movement of the mounting plate 22 is achieved, which facilitates the linear movement of the mounting plate 22.

[0034] It should be further explained that a second handle 44 is fixedly installed at one end of the second rotating rod 42, and a slider 41 is threadedly connected to the second rotating rod 42. The slider 41 slides on the surface of the base 1. A second mounting through hole 45 is provided on the slider 41. The second mounting through hole 45 is provided to receive the insertion of bolts.

[0035] It should be further noted that there are four uprights 31, all of which are square rods. The uprights 31 are set vertically and are used to support the opening of the slide 38. The lifting rods 36 are also square rods, set vertically, and there are four lifting rods 36. They are used to support the installation of the top frame 33.

[0036] It should be further noted that a second through hole 37 is provided on the surface of the lifting rod 36. The second through hole 37 is horizontally positioned and is cylindrical in shape. The second through hole 37 is provided to receive the insertion of the bolt 34.

[0037] Working method: When installing the protective frame, the spacing between the second mounting through holes 45 can be adjusted according to the installation surface. The second handle 44 can be rotated, which will drive the second rotating rod 42 to rotate. The second rotating rod 42 is provided with positive and negative threads, which will drive the sliders 41 on both sides to slide towards each other along the surface of the base 1 until the second mounting through holes 45 on the sliders 41 move to the appropriate position. With the bolts, the installation of the protective frame is convenient.

[0038] When an air conditioning unit needs to be installed inside the protective frame, depending on the size of the air conditioning unit, first remove the nut 35 from one end of the bolt 34 using a tool, and then slide the lifting rod 36 along the inner wall of the slide groove 38. When the lifting rod 36 moves, it will drive the top frame 33 to move vertically until the top frame 33 moves to a suitable height position and the first through hole 32 and the second through hole 37 in the same plane are aligned. Then, the bolt 34 is passed through the first through hole 32 and the second through hole 37, and the nut 35 is threaded onto the bolt 34, thereby achieving the purpose of fixing the lifting rod 36 into the slide groove 38. Through the above settings, it is easy to adjust the size of the protective frame and facilitate the installation of air conditioning units of different sizes.

[0039] After the protective frame size is adjusted, turn the first handle 21 according to the mounting hole situation of the air conditioning unit. The first handle 21 drives the first rotating rod 24 to rotate. The first rotating rod 24 is provided with positive and negative threads, which will drive the mounting blocks 27 on both sides to move. When the mounting blocks 27 on both sides move, they will drive the mounting plates 22 on both sides to move. Under the limiting action of the limiting block 26 and the limiting groove 23, the mounting plates 22 on both sides will move towards each other until the first mounting through hole 25 on the mounting plates 22 on both sides moves to a suitable distance, which is conducive to the installation of air conditioning units of different sizes.

[0040] 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 frame for a rail transit air conditioning unit, comprising a base (1), characterized in that: The base (1) is provided with a first mounting mechanism and a second mounting mechanism. The base (1) is provided with an adjustment mechanism. The first mounting mechanism includes a first rotating rod (24). The first rotating rod (24) is rotatably connected to the inner wall of the base (1) through a bearing. The first rotating rod (24) is provided with positive and negative threads. The first rotating rod (24) is threadedly connected to a mounting block (27). The top of the mounting block (27) is fixedly mounted with a mounting plate (22). The mounting plate (22) is provided with a first mounting through hole (25). The second mounting mechanism includes a receiving block (43). The receiving block (43) is fixedly mounted on the base (1). The receiving block (43) is rotatably connected to a second rotating rod (42). The second rotating rod (42) is provided with positive and negative threads. The adjustment mechanism includes a column (31), which is fixedly installed on the base (1). A groove (38) is provided at the top of the column (31). A lifting rod (36) is slidably arranged on the inner wall of the groove (38). A top frame (33) is fixedly installed at the top of the lifting rod (36). A first through hole (32) is provided on the column (31). A bolt (34) is inserted into the first through hole (32). A nut (35) is threaded to one end of the bolt (34).

2. The protective frame for a rail transit air conditioning unit according to claim 1, characterized in that: The first rotating rod (24) is horizontally set, and one end of the first rotating rod (24) passes through the surface of the base (1) and is fixedly installed with a first handle (21). The first handle (21) is in the shape of a circular plate and is vertically set.

3. A protective frame for a rail transit air conditioning unit according to claim 1, characterized in that: There are two mounting blocks (27), both of which are square blocks. The mounting plate (22) is a strip plate and is horizontally arranged. The first mounting through hole (25) is a cylindrical through hole.

4. A protective frame for a rail transit air conditioning unit according to claim 1, characterized in that: A limiting groove (23) is provided on the base (1). The limiting groove (23) is a strip groove. A limiting block (26) is slidably provided on the inner wall of the limiting groove (23). The limiting block (26) is a square block. The top of the limiting block (26) is fixedly connected to the mounting plate (22).

5. A protective frame for a rail transit air conditioning unit according to claim 1, characterized in that: A second handle (44) is fixedly installed at one end of the second rotating rod (42), and a slider (41) is threadedly connected to the second rotating rod (42). The slider (41) slides on the surface of the base (1), and a second mounting through hole (45) is provided on the slider (41).

6. A protective frame for a rail transit air conditioning unit according to claim 1, characterized in that: There are four columns (31), and each of the four columns (31) is a square rod. The columns (31) are vertically arranged. The lifting rods (36) are also square rods and are vertically arranged. There are four lifting rods (36).

7. A protective frame for a rail transit air conditioning unit according to claim 6, characterized in that: The surface of the lifting rod (36) is provided with a second through hole (37), which is horizontally arranged and has a cylindrical shape.