Indoor energy-saving ventilating duct structure device

By designing a ventilation and energy-saving duct structure, the problem of existing devices being unable to be adjusted and disassembled was solved, enabling reinforcement and rapid disassembly of pipes of different specifications, thus improving the applicability and ease of maintenance of the device.

CN224215526UActive Publication Date: 2026-05-08SHENZHEN BAICHUAN DECORATION DESIGN ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN BAICHUAN DECORATION DESIGN ENG CO LTD
Filing Date
2025-03-31
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing ventilation energy-saving duct reinforcement devices cannot be adjusted according to duct specifications, and are inconvenient to disassemble and replace.

Method used

The structure includes a ventilation and energy-saving duct body, a first telescopic mechanism, a second telescopic mechanism, and a limiting mechanism. By adjusting the distance and height of the L-shaped load-bearing rod and the telescopic cylinder, it can reinforce ducts of different specifications and allow for quick disassembly and replacement of components.

Benefits of technology

This expands the applicability of the device, improves its practicality, enables rapid disassembly and replacement, and reduces economic losses.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an indoor energy-saving ventilating pipeline structure device, which relates to the technical field of ventilating energy-saving equipment, and comprises a ventilating energy-saving pipeline body, a first telescopic mechanism, a second telescopic mechanism and a limiting mechanism, the ventilating energy-saving pipeline body is arranged between the first telescopic mechanism and the second telescopic mechanism, and the limiting mechanism is arranged between the first telescopic mechanism and the second telescopic mechanism. The first telescopic mechanism is arranged at the position, close to the top, between the inner sides of the two L-shaped bearing rod connecting walls, the two limiting mechanisms are arranged on the two sides of the first telescopic mechanism correspondingly, and the two limiting mechanisms are slidably connected with the L-shaped bearing rod connecting walls on the same side correspondingly; ventilation energy-saving pipeline bodies of different specifications can be reinforced by adjusting the distance between the two L-shaped bearing rods and the two telescopic cylinders and the height of the two telescopic cylinders, the two L-shaped bearing rods can be rapidly disassembled, the two telescopic cylinders can be rapidly taken down and disassembled, and the device can be rapidly disassembled, maintained and replaced.
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Description

Technical Field

[0001] This utility model relates to the field of ventilation and energy-saving equipment technology, and in particular to an indoor energy-saving ventilation duct structure device. Background Technology

[0002] Energy-saving ventilation ducts are often used in indoor ventilation processes. When using these ducts, reinforcement devices are usually required to strengthen the outer wall of the duct to enhance its strength.

[0003] Most existing ventilation energy-saving duct reinforcement devices are fixed and cannot be adjusted according to the duct specifications. Furthermore, it is inconvenient to disassemble and replace the reinforcement device when it is damaged. Utility Model Content

[0004] The purpose of this utility model is to provide an indoor energy-saving ventilation duct structure device to solve at least one of the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an indoor energy-saving ventilation duct structure device, comprising a ventilation energy-saving duct body, a first telescopic mechanism, a second telescopic mechanism, and a limiting mechanism;

[0006] The ventilation and energy-saving duct body is disposed between the first telescopic mechanism and the second telescopic mechanism;

[0007] The second telescopic mechanism includes two L-shaped load-bearing rods, a second telescopic rod, and two second fixing bolts. The two L-shaped load-bearing rods are symmetrically arranged at the same horizontal position. Slots are provided on adjacent sides of the wall on which the two L-shaped load-bearing rods are placed. The two ends of the second telescopic rod are respectively inserted into the corresponding slots. Third bolt holes penetrating the second telescopic rod are provided at equal intervals near the two ends of the top wall of the second telescopic rod. Fourth bolt holes are provided at the top and bottom of the wall on which the two L-shaped load-bearing rods are placed near the middle of the opening. The two fourth bolt holes on the same side are threaded to the corresponding third bolt holes on the second telescopic rod with the same second fixing bolt. The upper half of the connecting wall on the opposite side of the two L-shaped load-bearing rods is symmetrically provided with two rows of toothed grooves, and a through groove is provided between the two rows of toothed grooves.

[0008] The first telescopic mechanism is located near the top between the inner sides of the connecting walls of the two L-shaped load-bearing rods. The two limiting mechanisms are respectively located on both sides of the first telescopic mechanism, and the two limiting mechanisms are slidably connected to the connecting wall of the L-shaped load-bearing rod on the same side.

[0009] Preferably, the first telescopic mechanism includes two telescopic cylinders, a first telescopic rod, and two first fixing bolts. The two telescopic cylinders are symmetrically arranged at the same horizontal position. The two ends of the first telescopic rod are respectively inserted into the inner cavity of the corresponding telescopic cylinder. The top of the first telescopic rod is provided with first bolt holes that penetrate the first telescopic rod at equal intervals. The top and bottom of the two telescopic cylinders are provided with second bolt holes at the middle position near the opening. The second bolt hole on the same side is threaded to the first bolt hole on the first telescopic rod with the same first fixing bolt.

[0010] Preferably, the two limiting mechanisms are symmetrically arranged. Each limiting mechanism includes a rectangular slide frame and a limiting component. A rectangular slide frame is fixedly connected to one side of each of the two telescopic cylinders. The two rectangular slide frames slide on the connecting wall of the L-shaped load-bearing rod, and the two L-shaped load-bearing rods are close to the adjacent inner side walls of the two rectangular slide frames. The limiting component is located on the rectangular slide frame near the other side wall.

[0011] Preferably, each of the two limiting components includes two pressing posts, two limiting blocks, two limiting rods, a fixing block, and four springs. The fixing block is fixedly connected to one side wall of the inner wall of the rectangular sliding frame. Two openings are symmetrically provided at the middle positions of the front and rear ends of the fixing block. The two limiting rods are respectively inserted into one of the openings, and the middle outer wall of the two limiting rods is fixedly connected to the opening. The two pressing posts are respectively set at the two ends of the two limiting rods, and the adjacent side of the two pressing posts is provided with sliding holes at the corresponding positions of the limiting rods. The two ends of the two limiting rods are respectively slidably inserted into the corresponding sliding holes. The outer walls of the two limiting rods between the pressing post and the fixing block at the same end are fitted with springs. The opposite ends of the two pressing posts slide through the corresponding side wall of the rectangular sliding frame. The two pressing posts adjacent to the L-shaped load-bearing rod on the same side are fixedly connected to the middle positions near the adjacent ends of the two pressing posts. The height of the limiting block is the same as the height of the telescopic cylinder.

[0012] Preferably, rubber pads are fixedly connected to the bottom of the two telescopic cylinders and the inner side of the two L-shaped load-bearing rods, and round openings are provided on the rubber pads at positions corresponding to the second bolt hole and the fourth bolt hole.

[0013] Preferably, the slot opening size matches the second telescopic rod, the inner cavity opening size of the telescopic cylinder matches the first telescopic rod, the length of each slot is half the length of the second telescopic rod, and the inner cavity length of each telescopic cylinder is half the length of the first telescopic rod.

[0014] Preferably, the size of the limiting block matches the tooth groove.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. By adjusting the distance between the two L-shaped load-bearing rods and the two telescopic cylinders, as well as the height of the two telescopic cylinders, the main body of ventilation and energy-saving ducts of different specifications can be reinforced, expanding the application range of the device and greatly improving its practicality.

[0017] 2. The device can be quickly disassembled by two L-shaped load-bearing rods and two telescopic cylinders, allowing for rapid disassembly, maintenance, and replacement. This is convenient and quick, and only specific parts can be replaced instead of the entire device, reducing economic losses. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the first telescopic rod and the second telescopic rod of this utility model;

[0020] Figure 3 This is a cross-sectional view of the telescopic cylinder of this utility model;

[0021] Figure 4 This is a cross-sectional view of the L-shaped load-bearing bar of this utility model;

[0022] Figure 5 This is a three-dimensional structural diagram of the limiting block of this utility model;

[0023] Figure 6 This is a side sectional view of the rectangular sliding frame and the L-shaped load-bearing rod of this utility model;

[0024] Figure 7 This is a cross-sectional view of the pressing column and fixing block of this utility model;

[0025] Figure 8 This is a schematic diagram of the three-dimensional structure of the rectangular sliding frame of this utility model.

[0026] In the diagram: 1. Ventilation and energy-saving duct body; 2. First telescopic mechanism; 21. Telescopic cylinder; 22. First fixing bolt; 23. First telescopic rod; 24. First bolt hole; 25. Second bolt hole; 3. Second telescopic mechanism; 31. L-shaped load-bearing rod; 32. Tooth groove; 33. Second telescopic rod; 34. Third bolt hole; 35. Through groove; 36. Fourth bolt hole; 37. Second fixing bolt; 38. Slot; 4. Limiting mechanism; 41. Rectangular sliding frame; 42. Pressing column; 421. Sliding hole; 43. Spring; 44. Limiting block; 45. Limiting rod; 46. Fixing block; 461. Opening; 5. Rubber pad. Detailed Implementation

[0027] 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.

[0028] This utility model provides, for example Figure 1-8 The indoor energy-saving ventilation duct structure shown includes a ventilation energy-saving duct body 1, a first telescopic mechanism 2, a second telescopic mechanism 3, and a limiting mechanism 4;

[0029] The ventilation and energy-saving duct body 1 is located between the first telescopic mechanism 2 and the second telescopic mechanism 3;

[0030] The second telescopic mechanism 3 includes two L-shaped load-bearing rods 31, a second telescopic rod 33, and two second fixing bolts 37. The two L-shaped load-bearing rods 31 are symmetrically arranged at the same horizontal position. Slots 38 are provided on adjacent sides of the wall on which the two L-shaped load-bearing rods 31 are placed. The two ends of the second telescopic rod 33 are respectively inserted into the corresponding slots 38. Third bolt holes 34 are equally spaced at the middle of the top wall of the second telescopic rod 33 near both ends. Fourth bolt holes 36 are provided at the top and bottom of the wall on which the two L-shaped load-bearing rods 31 are placed near the middle of the opening. The two fourth bolt holes 36 on the same side are threaded to the corresponding third bolt holes 34 on the second telescopic rod 33 with the same second fixing bolt 37. The upper half of the connecting wall on the opposite side of the two L-shaped load-bearing rods 31 is symmetrically provided with two rows of toothed grooves 32. A through groove 35 is provided between the two rows of toothed grooves 32.

[0031] The first telescopic mechanism 2 is located near the top between the inner sides of the connecting walls of the two L-shaped load-bearing rods 31. The two limiting mechanisms 4 are respectively located on both sides of the first telescopic mechanism 2, and the two limiting mechanisms 4 are slidably connected to the connecting walls of the L-shaped load-bearing rods 31 on the same side.

[0032] When it is necessary to reinforce the ventilation energy-saving duct body 1 (the specifications of the ventilation energy-saving duct body 1 must conform to the scope of use of the device), the staff first adjusts the distance between the two L-shaped load-bearing rods 31 according to the size of the ventilation energy-saving duct body 1, unscrews the two second fixing bolts 37, and pulls the L-shaped load-bearing rods 31 to both sides. At this time, the second telescopic rod 33 slides in the slot 38, limiting the two L-shaped load-bearing rods 31. When the distance between the connecting walls of the two L-shaped load-bearing rods 31 matches the size of the ventilation energy-saving duct body 1, the two second fixing bolts 37 are screwed into the corresponding third bolt holes 34 and fourth bolt holes 36, so that the overlapping wall of the L-shaped load-bearing rod 31 and the second telescopic rod 33 are fixed and limited. Then, the two first fixing bolts 22 are unscrewed, and the telescopic cylinder 21 is moved to both sides. At this time, the first telescopic rod 23 slides in the inner cavity of the telescopic cylinder 21, limiting the first telescopic rod 23. When the two rectangular sliding frames 41 move to the position where they can fit into the connecting wall of the L-shaped load-bearing rod 31 on the same side, the staff will then proceed with the reinforcement. At this time, the two first fixing bolts 22 are screwed into the corresponding second bolt holes 25 and first bolt holes 24 respectively, so that the first telescopic rod 23 and the telescopic cylinder 21 are fixed and limited. Then, the two L-shaped load-bearing rods 31 are placed at the bottom of the ventilation and energy-saving duct body 1. Then, the two pressing columns 42 on the rectangular sliding frame 41 are pressed respectively. The pressing columns 42 drive the two limiting blocks 44 to move towards the middle. When the two limiting blocks 44 move between the through grooves 35, the rectangular sliding frame 41 can be fitted into the connecting part of the L-shaped load-bearing rods 31. Move the two rectangular sliding frames 41 downwards to make the rubber pad 5 at the bottom of the telescopic cylinder 21 fit tightly against the top of the ventilation and energy-saving duct body 1. Then release the pressing column 42. At this time, the spring 43 rebounds and drives the pressing column 42 to reset, so that the limiting block 44 is inserted into the tooth groove 32, thereby fixing and limiting the rectangular sliding frame 41 and the telescopic cylinder 21, completing the reinforcement of the ventilation and energy-saving duct body 1. When disassembly is required, press the pressing column 42, and you can pull the clip upwards to remove the telescopic cylinder 21. Then remove the L-shaped load-bearing rod 31 to disassemble.

[0033] The first telescopic mechanism 2 includes two telescopic cylinders 21, a first telescopic rod 23, and two first fixing bolts 22. The two telescopic cylinders 21 are symmetrically arranged at the same horizontal position. The two ends of the first telescopic rod 23 are respectively inserted into the inner cavity of the corresponding telescopic cylinder 21. The top of the first telescopic rod 23 is provided with first bolt holes 24 that penetrate the first telescopic rod 23 at equal intervals. The top and bottom of the two telescopic cylinders 21 are provided with second bolt holes 25 near the middle position of the opening. The second bolt hole 25 on the same side and the corresponding first bolt hole 24 on the first telescopic rod 23 are threadedly connected by the same first fixing bolt 22.

[0034] The workers unscrewed the two first fixing bolts 22 and moved the two telescopic cylinders 21 to both sides. At this time, the first telescopic rod 23 slid in the inner cavity of the telescopic cylinder 21, limiting the first telescopic rod 23. When the two rectangular sliding frames 41 moved to a position where they could fit into the connecting wall of the L-shaped load-bearing rod 31 on the same side, the two first fixing bolts 22 were screwed into the corresponding second bolt holes 25 and first bolt holes 24 respectively, so that the first telescopic rod 23 and the telescopic cylinder 21 were fixed and limited, preventing the first telescopic rod 23 and the telescopic cylinder 21 from shifting and making it impossible to fit the rectangular sliding frame 41 into the connecting wall of the L-shaped load-bearing rod 31 on the same side.

[0035] Two limiting mechanisms 4 are symmetrically arranged. Each limiting mechanism 4 includes a rectangular slide frame 41 and a limiting component. A rectangular slide frame 41 is fixedly connected to one side of each of the two telescopic cylinders 21. The two rectangular slide frames 41 slide inside the connecting wall of the L-shaped load-bearing rod 31, and the two L-shaped load-bearing rods 31 are in close contact with the adjacent inner side walls of the two rectangular slide frames 41. The limiting component is located near the other side wall of the rectangular slide frame 41. Each limiting component includes two pressing posts 42, two limiting blocks 44, two limiting rods 45, a fixing block 46, and four springs 43. The fixing block 46 is fixedly connected to one side wall of the inner wall of the rectangular slide frame 41. Two openings 461 are symmetrically provided at the middle positions of the front and rear ends of the fixing block 46. The two limiting rods 45 are respectively inserted into one opening 46. The inner wall of the two limiting rods 45 is fixedly connected to the opening 461. The two pressing columns 42 are respectively set at both ends of the two limiting rods 45, and the two pressing columns 42 are provided with sliding holes 421 at the corresponding positions of the limiting rods 45 on the adjacent side. The two ends of the two limiting rods 45 are slidably inserted into the corresponding sliding holes 421. The outer wall of the two limiting rods 45 between the pressing column 42 and the fixing block 46 at the same end is fitted with springs 43. The two pressing columns 42 slide through the corresponding side wall of the rectangular sliding frame 41 at the opposite end. The two pressing columns 42 adjacent to the L-shaped load-bearing rod 31 on the same side are fixedly connected with limiting blocks 44 at the middle position near the adjacent end. The height of the limiting blocks 44 is the same as the height of the telescopic cylinder 21, and the size of the limiting blocks 44 matches the tooth groove 32.

[0036] The operator presses the two pressing posts 42 on the rectangular sliding frame 41. Under the action of the spring 43, the two pressing posts 42 drive the two limiting blocks 44 to move towards the fixing block 46. At this time, the spring 43 is compressed by the pressing posts 42 and contracts. When the two limiting blocks 44 move between the through grooves 35, the rectangular sliding frame 41 can be fitted into the connecting wall of the L-shaped load-bearing rod 31. Then, the two rectangular sliding frames 41 are moved downward so that the rubber pad 5 at the bottom of the telescopic cylinder 21 is tightly attached to the top of the ventilation and energy-saving duct body 1. Then, the pressing posts 42 are released. At this time, the spring 43 loses the compression of the pressing posts 42 and rebounds, driving the pressing posts 42 to reset so that the limiting blocks 44 are inserted into the toothed grooves 32, so that the limiting blocks 44 and the pressing posts 42 are limited and fixed, thereby fixing the rectangular sliding frame 41 and the telescopic cylinder 21 and completing the reinforcement of the ventilation and energy-saving duct body 1. The fixing block 46 is used to fix the limiting rod 45. The limiting rod 45 limits the movement of the pressing posts 42 and prevents it from deviating.

[0037] Rubber pads 5 are fixedly connected to the bottom of the two telescopic cylinders 21 and the inner side of the two L-shaped load-bearing rods 31. The rubber pads 5 are provided with round openings at positions corresponding to the second bolt hole 25 and the fourth bolt hole 36.

[0038] On the one hand, the rubber pad 5 increases the friction with the ventilation and energy-saving duct body 1, making the ventilation and energy-saving duct body 1 less prone to slipping and more stable. On the other hand, the rubber pad 5 can effectively buffer various impact forces, which is beneficial to protecting the ventilation and energy-saving duct body 1 and reducing damage.

[0039] The opening size of the slot 38 matches the second telescopic rod 33, the size of the inner cavity opening of the telescopic cylinder 21 matches the first telescopic rod 23, the length of each slot 38 is half the length of the second telescopic rod 33, and the inner cavity length of each telescopic cylinder 21 is half the length of the first telescopic rod 23.

[0040] The second telescopic rod 33 can be inserted into the slot 38, and the first telescopic rod 23 can be inserted into the inner cavity of the telescopic cylinder 21. When the specifications of the ventilation energy-saving duct body 1 are different, the distance between the connecting walls of the two L-shaped load-bearing rods 31 can be adjusted to facilitate the placement of the ventilation energy-saving duct body 1 on the load-bearing wall of the L-shaped load-bearing rod 31. Then, the distance between the two telescopic cylinders 21 can be adjusted so that the rectangular sliding frame 41 can be fitted onto the connecting wall of the L-shaped load-bearing rod 31, thereby allowing the height of the two telescopic cylinders 21 to be adjusted. This allows for the reinforcement of various specifications of ventilation energy-saving duct bodies 1 that conform to the application range of the device.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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. An indoor energy-saving ventilation duct structure device, characterized in that: It includes a ventilation energy-saving duct body (1), a first telescopic mechanism (2), a second telescopic mechanism (3), and a limiting mechanism (4); The ventilation energy-saving duct body (1) is disposed between the first telescopic mechanism (2) and the second telescopic mechanism (3); The second telescopic mechanism (3) includes two L-shaped load-bearing rods (31), a second telescopic rod (33), and two second fixing bolts (37). The two L-shaped load-bearing rods (31) are symmetrically arranged at the same horizontal position. Slots (38) are provided on adjacent sides of the wall on which the two L-shaped load-bearing rods (31) are placed. The two ends of the second telescopic rod (33) are respectively inserted into the corresponding slots (38). Through-holes are provided at equal intervals in the middle of the top wall of the second telescopic rod (33) near both ends. The third bolt hole (34) of the two L-shaped load-bearing rods (31) are provided with a fourth bolt hole (36) at the top and bottom of the middle position of the wall near the opening. The two fourth bolt holes (36) on the same side are threaded to the third bolt hole (34) on the second telescopic rod (33) with the same second fixing bolt (37). The upper half of the connecting wall on the opposite side of the two L-shaped load-bearing rods (31) is symmetrically provided with two rows of toothed grooves (32), and a through groove (35) is provided between the two rows of toothed grooves (32). The first telescopic mechanism (2) is located near the top between the inner sides of the connecting walls of the two L-shaped load-bearing rods (31). The two limiting mechanisms (4) are respectively located on both sides of the first telescopic mechanism (2). The two limiting mechanisms (4) are slidably connected to the connecting walls of the L-shaped load-bearing rods (31) on the same side.

2. The indoor energy-saving ventilation duct structure device according to claim 1, characterized in that: The first telescopic mechanism (2) includes two telescopic cylinders (21), a first telescopic rod (23), and two first fixing bolts (22). The two telescopic cylinders (21) are symmetrically arranged at the same horizontal position. The two ends of the first telescopic rod (23) are respectively inserted into the inner cavity of the corresponding telescopic cylinder (21). The top of the first telescopic rod (23) is provided with first bolt holes (24) that penetrate the first telescopic rod (23) at equal intervals. The top and bottom of the two telescopic cylinders (21) are provided with second bolt holes (25) at the middle position near the opening. The second bolt hole (25) on the same side and the corresponding first bolt hole (24) on the first telescopic rod (23) are threaded together with the same first fixing bolt (22).

3. The indoor energy-saving ventilation duct structure device according to claim 2, characterized in that: The two limiting mechanisms (4) are symmetrically arranged. Each of the two limiting mechanisms (4) includes a rectangular slide frame (41) and a limiting component. Each of the two telescopic cylinders (21) is fixedly connected to a rectangular slide frame (41) on one side opposite to the other. The two rectangular slide frames (41) slide inside the connecting wall of the L-shaped load-bearing rod (31) and the two L-shaped load-bearing rods (31) are close to the adjacent inner side walls of the two rectangular slide frames (41). The limiting component is located on the rectangular slide frame (41) near the other side wall.

4. The indoor energy-saving ventilation duct structure device according to claim 3, characterized in that: Both of the aforementioned limiting components include two pressing posts (42), two limiting blocks (44), two limiting rods (45), a fixing block (46), and four springs (43). The fixing block (46) is fixedly connected to one side wall of the inner wall of the rectangular sliding frame (41). The fixing block (46) has two openings (461) symmetrically provided at the middle positions of the front and rear ends. The two limiting rods (45) are respectively inserted into one of the openings (461), and the middle outer wall of the two limiting rods (45) is fixedly connected to the opening (461). The two pressing posts (42) are respectively set at the two ends of the two limiting rods (45), and the two pressing posts (42) are adjacent to each other. Each side is provided with a sliding hole (421) corresponding to the position of the limiting rod (45). The two ends of the two limiting rods (45) are slidably inserted into the corresponding sliding holes (421). The outer walls of the two limiting rods (45) between the pressing column (42) and the fixing block (46) at the same end are fitted with springs (43). The two pressing columns (42) slide through the corresponding side wall of the rectangular sliding frame (41) at opposite ends. The two pressing columns (42) adjacent to the L-shaped load-bearing rod (31) on the same side are fixedly connected to the limiting block (44) at the middle position near the adjacent end. The height of the limiting block (44) is the same as the height of the telescopic cylinder (21).

5. The indoor energy-saving ventilation duct structure device according to claim 4, characterized in that: The bottom of the two telescopic cylinders (21) and the inner side of the two L-shaped load-bearing rods (31) are fixedly connected with rubber pads (5), and the rubber pads (5) are provided with round openings at positions corresponding to the second bolt hole (25) and the fourth bolt hole (36).

6. The indoor energy-saving ventilation duct structure device according to claim 5, characterized in that: The opening size of the slot (38) matches the second telescopic rod (33), and the size of the inner cavity opening of the telescopic cylinder (21) matches the first telescopic rod (23). The length of each slot (38) is half that of the second telescopic rod (33), and the inner cavity length of each telescopic cylinder (21) is half that of the first telescopic rod (23).

7. The indoor energy-saving ventilation duct structure device according to claim 6, characterized in that: The size of the limiting block (44) matches the tooth groove (32).