Ventilation energy-saving equipment for green building

The design of the transmission rod, the abutment plate, the insertion rod and the locking mechanism simplifies the disassembly process of the fan blades, solves the problem of needing to rotate the nut to loosen the fan blades in the existing technology, and realizes convenient replacement of the fan blades.

CN223826420UActive Publication Date: 2026-01-23JIANGSU NEW DONGBO CONSTR TECH CO LTD
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Patent Information

Application Number
CN202520047239.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-09
Publication Date
2026-01-23
Estimated Expiration
2035-01-09

AI Technical Summary

Technical Problem

In existing technologies, replacing fan blades requires first rotating the nut to loosen it from the shaft, which increases the complexity and labor intensity of the maintenance process.

Method used

The design incorporates a transmission rod, a stop plate, a plug rod, and a locking mechanism. The locking mechanism enables easy disassembly of the connecting seat. The combination of the turntable, locking seat, locking block, limit rod, spring, and friction block simplifies the fan blade disassembly process.

Benefits of technology

It enables easy disassembly of the fan blades, reducing the complexity and labor intensity of the maintenance process.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223826420U_ABST
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Abstract

The utility model relates to the technical field of building ventilation equipment, in particular to environment-friendly building ventilation energy-saving equipment which comprises a protection box, a transmission rod is rotationally connected into the protection box through a bearing seat, a connecting seat is arranged on the side wall of the transmission rod, fan blades are fixedly connected to the side wall of the connecting seat at equal intervals, and a mounting cavity is formed in the protection box. A driving mechanism is arranged in the mounting cavity and used for driving the transmission rod to rotate, and a locking mechanism is arranged at the front end of the driving rod and used for fixing the connecting base to the transmission rod. The connecting base is connected to the side wall of the transmission rod in a sleeved mode and then fixed to the transmission rod through the locking mechanism, so that the connecting base can be detached through the locking mechanism, and the problem that when fan blades are replaced, a worker needs to rotate a nut and loosen the nut from a rotating shaft to take down the fan blades, and the fan blades cannot be replaced is solved. And the complexity of the maintenance process is increased.
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Description

Technical Field

[0001] This utility model belongs to the technical field of building ventilation equipment, specifically relating to a ventilation and energy-saving device for green buildings. Background Technology

[0002] The "green" in "green building" does not refer to traditional vertical greening or rooftop gardens, but rather to a deeper concept and symbol. It represents an environmentally friendly architectural philosophy that efficiently utilizes natural resources. Such buildings do not disrupt the basic ecological balance of the environment during construction, and are therefore also known as sustainable development buildings, ecological buildings, back-to-nature buildings, or energy-saving and environmentally friendly buildings.

[0003] In harsh weather conditions, sand and gravel in the air may be drawn into the impeller by the airflow and collide with the high-speed rotating blades. This collision may damage the blades. To prevent damaged blades from affecting the blower's efficiency, workers need to replace the damaged blades regularly. However, the blades are connected to the shaft by a fixing nut, which means that when replacing the blades, workers must first rotate the nut to loosen it from the shaft before they can remove the blades. This step undoubtedly increases the complexity and labor intensity of the maintenance process. Utility Model Content

[0004] The purpose of this utility model is to provide a ventilation and energy-saving device for green buildings, in order to solve the problem that in the prior art, when replacing fan blades, workers must first rotate the nut to loosen it from the shaft before they can remove the fan blades, which increases the complexity of the maintenance process.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A ventilation and energy-saving device for green buildings includes a protective box. Inside the protective box, a transmission rod is rotatably connected via a bearing seat. A connecting seat is provided on the side wall of the transmission rod. Fan blades are fixedly connected to the side wall of the connecting seat at equal intervals. An installation cavity is opened inside the protective box. A driving mechanism is provided inside the installation cavity. The driving mechanism is used to drive the transmission rod to rotate. A locking mechanism is provided at the front end of the driving rod. The locking mechanism is used to fix the connecting seat to the transmission rod.

[0007] Preferably, the transmission rod is fixedly connected to a stop plate on its side wall, the stop plate has insert rods equidistantly provided at its front end, the connecting seat has insertion holes equidistantly provided at its front end face, the insert rods are located inside the insertion holes, the rear end of the connecting seat abuts against the front end of the stop plate, and a limiting groove is provided on the transmission rod side wall located at the front end of the connecting seat.

[0008] Preferably, the locking mechanism includes a locking seat and a turntable. The locking seat is sleeved on the side wall of the transmission rod located at the front end of the connecting seat. The inner wall of the locking seat is provided with an installation groove. A locking block is slidably connected inside the installation groove. The locking block is located inside the limiting groove and is engaged with it.

[0009] Preferably, a turntable is rotatably connected inside the locking seat, and an arc-shaped groove is opened on the front end face of the turntable. A limit rod is fixedly connected to the front end of the locking block, and the front end of the limit rod passes through the arc-shaped groove and is slidably connected thereto.

[0010] Preferably, the locking seat has a limiting hole inside, a spring is fixedly connected inside the limiting hole, a friction block is fixedly connected to the spring, and the front end of the friction block abuts against the rear end of the turntable.

[0011] Preferably, the driving mechanism includes a motor and a drive shaft. The motor is fixedly connected inside the mounting cavity, and the drive shaft is fixedly connected to the output shaft end of the motor. The upper end of the drive shaft extends through to the positive direction of the transmission rod. A first bevel gear is fixedly connected to the upper end of the drive shaft, and a second bevel gear is fixedly connected to the side wall of the transmission rod. The first bevel gear and the second bevel gear mesh with each other.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model, through the cooperation of the transmission rod, the abutment plate, the insertion rod and the locking mechanism, can fix the connecting seat on the transmission rod. When disassembling the connecting seat, it is only necessary to operate the locking mechanism, so that the front end of the connecting seat is no longer restricted, thereby facilitating the disassembly of the connecting seat.

[0014] 2. This utility model, through the cooperation of a turntable, locking seat, locking block, limiting rod, spring and friction block, allows the movement of the locking block to be controlled by the limiting rod through the rotation of the turntable, thereby achieving the engagement and disengagement of the locking block and the limiting groove; at the same time, the spring and friction block can limit the rotation of the locking seat during rotation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall main structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall left-side cross-sectional planar structure of this utility model;

[0017] Figure 3 This is a cross-sectional structural diagram of the locking mechanism of this utility model;

[0018] Figure 4 This utility model Figure 3 Enlarged structural diagram of section A;

[0019] Figure 5 This is a cross-sectional structural diagram of the locking mechanism of this utility model from another perspective.

[0020] In the diagram: 1. Protective box; 11. Connecting pipe; 12. Mounting cavity; 13. Protective net; 2. Drive mechanism; 21. Motor; 22. Drive shaft; 23. First bevel gear; 3. Transmission rod; 31. Second bevel gear; 32. Support plate; 33. Insert rod; 34. Limiting groove; 4. Connecting seat; 41. Insertion hole; 42. Fan blade; 5. Locking mechanism; 51. Locking seat; 511. Mounting groove; 512. Limiting hole; 52. Locking block; 53. Limiting rod; 54. Turntable; 55. Arc groove; 56. Spring; 57. Friction block. Detailed Implementation

[0021] 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.

[0022] Reference Figures 1-5 As shown, this utility model provides a ventilation and energy-saving device for green buildings, including a protective box 1. Inside the protective box 1, a transmission rod 3 is rotatably connected via a bearing seat. A connecting seat 4 is provided on the side wall of the transmission rod 3. Fan blades 42 are fixedly connected to the side wall of the connecting seat 4 at equal intervals. An installation cavity 12 is opened inside the protective box 1. A drive mechanism 2 is provided inside the installation cavity 12. The drive mechanism 2 is used to drive the transmission rod 3 to rotate. A locking mechanism 5 is provided at the front end of the drive rod. The locking mechanism 5 is used to fix the connecting seat 4 on the transmission rod 3. By fitting the connecting seat 4 onto the side wall of the transmission rod 3, and then fixing the connecting seat 4 on the transmission rod 3 through the locking mechanism 5, the connecting seat 4 can be disassembled through the locking mechanism 5. This solves the problem that when replacing the fan blades 42, the staff must first rotate the nut to loosen it from the shaft before they can remove the fan blades 42, which increases the complexity of the maintenance process.

[0023] In a further embodiment, refer to Figure 5 A stop plate 32 is fixedly connected to the side wall of the transmission rod 3. Insert rods 33 are equidistantly provided at the front end of the stop plate 32. Insert holes 41 are equidistantly provided on the front end face of the connecting seat 4. Insert rods 33 are located inside the insert holes 41. The rear end of the connecting seat 4 abuts against the front end of the stop plate 32. A limit groove 34 is provided on the side wall of the transmission rod 3 located at the front end of the connecting seat 4.

[0024] In this embodiment, by fitting the connecting seat 4 onto the side wall of the transmission rod 3, the insertion rod 33 is inserted into the insertion hole 41, thereby restricting the rotation of the connecting seat 4. At the same time, the rear end of the connecting seat 4 abuts against the front end of the abutment plate 32, thereby preventing the connecting seat 4 from moving backward. At this time, the locking mechanism 5 can restrict the movement of the connecting seat 4, thereby achieving the effect of fixing the connecting seat 4.

[0025] In a further embodiment, refer to Figures 3-4 The locking mechanism 5 includes a locking seat 51 and a turntable 54. The locking seat 51 is sleeved on the side wall of the transmission rod 3 located at the front end of the connecting seat 4. The inner wall of the locking seat 51 has an installation groove 511. A locking block 52 is slidably connected inside the installation groove 511. The locking block 52 is located inside the limiting groove 34 and is engaged with it. The turntable 54 is rotatably connected inside the locking seat 51. An arc-shaped groove 55 is opened on the front end face of the turntable 54. A limiting rod 53 is fixedly connected to the front end of the locking block 52. The front end of the limiting rod 53 passes through the arc-shaped groove 55 and is slidably connected to it.

[0026] In this embodiment, by rotating the turntable 54, the arc groove 55 in the turntable 54 is moved. Since the limiting rod 53 is located inside the arc groove and is slidably connected to it, the limiting rod 53 is moved. The movement of the limiting rod 53 causes the locking block 52 to move, thereby the locking block 52 moves away from the inside of the limiting groove 34, and the locking block 52 and the limiting groove 34 are no longer engaged. This makes it easy to remove the locking seat 51 from the front end of the transmission rod 3, and thus makes it easy to disassemble the connecting seat 4.

[0027] In a further embodiment, refer to Figure 5 The locking seat 51 has a limiting hole 512 inside, and a spring 56 is fixedly connected inside the limiting hole 512. A friction block 57 is fixedly connected to the spring 56, and the front end of the friction block 57 abuts against the rear end of the turntable 54.

[0028] In this embodiment, the friction block 57 is compressed by the spring 56, so that the front end of the friction block 57 abuts against the rear end of the turntable 54, thereby limiting the self-rotation of the locking seat 51 when it rotates.

[0029] In a further embodiment, refer to Figure 2 The drive mechanism 2 includes a motor 21 and a drive shaft 22. The motor 21 is fixedly connected inside the mounting cavity 12. The output shaft of the motor 21 is fixedly connected to the drive shaft 22. The upper end of the drive shaft 22 extends through to the positive direction of the transmission rod 3. The upper end of the drive shaft 22 is fixedly connected to a first bevel gear 23. The side wall of the transmission rod 3 is fixedly connected to a second bevel gear 31. The first bevel gear 23 and the second bevel gear 31 mesh with each other.

[0030] In this embodiment, the starting motor 21 drives the drive shaft 22 to rotate, the drive shaft 22 rotates, and the drive shaft 22 rotates, which in turn drives the first bevel gear 23 to rotate. Since the first bevel gear 23 meshes with the second bevel gear 31, it drives the second bevel gear 31 to rotate. The rotation of the second bevel gear 31 drives the transmission rod 3 to rotate, thereby providing power for the rotation of the fan blade 42.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A ventilation and energy-saving device for green buildings, comprising a protective box (1), characterized in that, The protective box (1) is rotatably connected to a transmission rod (3) via a bearing seat. A connecting seat (4) is provided on the side wall of the transmission rod (3). Fan blades (42) are fixedly connected to the side wall of the connecting seat (4) at equal intervals. An installation cavity (12) is provided inside the protective box (1). A driving mechanism (2) is provided inside the installation cavity (12). The driving mechanism (2) is used to drive the transmission rod (3) to rotate. A locking mechanism (5) is provided at the front end of the transmission rod (3). The locking mechanism (5) is used to fix the connecting seat (4) on the transmission rod (3).

2. The ventilation and energy-saving equipment for green buildings according to claim 1, characterized in that: The transmission rod (3) is fixedly connected to the side wall of the transmission rod (3). The front end of the support plate (32) is provided with insert rods (33) at equal intervals. The front end face of the connecting seat (4) is provided with insertion holes (41) at equal intervals. The insert rods (33) are located inside the insertion holes (41). The rear end of the connecting seat (4) abuts against the front end of the support plate (32). The transmission rod (3) located at the front end of the connecting seat (4) has a limit groove (34) on its side wall.

3. The ventilation and energy-saving equipment for green buildings according to claim 1, characterized in that: The locking mechanism (5) includes a locking seat (51) and a turntable (54). The locking seat (51) is sleeved on the side wall of the transmission rod (3) located at the front end of the connecting seat (4). The inner wall of the locking seat (51) is provided with an installation groove (511). A locking block (52) is slidably connected inside the installation groove (511). The locking block (52) is located inside the limiting groove (34) and is engaged with it.

4. The ventilation and energy-saving equipment for green buildings according to claim 3, characterized in that: The locking seat (51) is rotatably connected to a turntable (54). The front end face of the turntable (54) is provided with an arc-shaped groove (55). The front end of the locking block (52) is fixedly connected to a limit rod (53). The front end of the limit rod (53) passes through the arc-shaped groove (55) and is slidably connected to it.

5. A ventilation and energy-saving device for green buildings according to claim 3, characterized in that: The locking seat (51) has a limiting hole (512) inside, and a spring (56) is fixedly connected inside the limiting hole (512). A friction block (57) is fixedly connected to the spring (56), and the front end of the friction block (57) abuts against the rear end of the turntable (54).

6. The ventilation and energy-saving equipment for green buildings according to claim 1, characterized in that: The drive mechanism (2) includes a motor (21) and a drive shaft (22). The motor (21) is fixedly connected inside the mounting cavity (12). The output shaft of the motor (21) is fixedly connected to the drive shaft (22). The upper end of the drive shaft (22) extends through to the positive direction of the transmission rod (3). The upper end of the drive shaft (22) is fixedly connected to a first bevel gear (23). The side wall of the transmission rod (3) is fixedly connected to a second bevel gear (31). The first bevel gear (23) and the second bevel gear (31) mesh with each other.