Building ventilation energy-saving device

Abstract

The utility model discloses a building ventilation energy-saving device, which relates to the technical field of building ventilation and comprises a ventilation hood internally provided with an air duct, a filter frame arranged at the air inlet end of the air duct and a fan arranged at the air outlet end of the air duct. Cleaning blades are arranged on one side, back on to the fan, of the filter frame, and the cleaning blades are attached to the surface of the filter frame; filtering holes are formed in the surface of the filtering frame, an annular supporting seat is arranged in the middle of the filtering frame, the supporting seat is sleeved with a rotating seat, and the cleaning blades are fixedly connected with the rotating seat; a transmission shaft is arranged between the fan and the filter frame, one end of the transmission shaft is connected with a transmission motor in the fan, and the other end of the transmission shaft penetrates through the filter frame and is connected with a rotating seat; when the fan runs, the cleaning blades can be synchronously driven to rotate to automatically clean the surface of the filter frame.

Description

TECHNICAL FIELD

[0001] The utility model relates to building ventilation technical field, concretely is a building ventilation energy -conserving device. BACKGROUND

[0002] In modern buildings, ventilation systems are crucial for maintaining indoor air quality and environmental comfort. At the same time, with the increasing prominence of energy issues, the energy-saving requirements of building ventilation systems are becoming increasingly high.

[0003] Currently, the common building ventilation devices on the market mostly only have simple ventilation functions. Some ventilation devices have installed filtering components to purify the air entering the indoor, but in actual use, the filtering components are easily blocked by dust and other impurities, resulting in reduced ventilation efficiency. To solve this problem, some existing technologies use regular manual cleaning of the filtering components, but this not only increases maintenance costs, but also affects ventilation efficiency if not cleaned in time.

[0004] Some ventilation devices solve the problem of filtering component blockage by setting up automatic cleaning devices, but these devices require additional power sources, which not only increases the overall cost of the device, but also consumes more energy, which is contrary to the concept of energy saving. INVENTION CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a building ventilation energy-saving device.

[0006] In order to achieve the above purpose, the technical scheme of the utility model is as follows:

[0007] A building ventilation energy-saving device, comprising a ventilation cover with an internal air duct, and a filter frame at the air inlet end of the air duct and a fan at the air outlet end;

[0008] The side of the filter frame opposite to the fan is provided with a cleaning blade, and the cleaning blade is attached to the surface of the filter frame;

[0009] The surface of the filter frame is provided with filter holes, and an annular support seat is arranged at the middle part of the filter frame, and the support seat is externally sleeved with a rotating seat, and the cleaning blade is fixedly connected with the rotating seat;

[0010] A transmission shaft is arranged between the fan and the filter frame, one end of the transmission shaft is connected with a transmission motor in the fan, and the other end of the transmission shaft passes through the filter frame and is connected with the rotating seat.

[0011] Preferably, the filter frame is arranged as an arc-shaped frame protruding towards the fan, and the side of the cleaning blade attached to the filter frame is provided with bristles.

[0012] Preferably, the rotating seat is provided with a rotating seat, and a clamping frame is installed on the rotating seat through a rotating shaft; the middle section of the clamping frame is provided as a clamping section, and a clamping surface is correspondingly provided on the transmission shaft; the clamping section is clamped and locked with the clamping surface after rotation.

[0013] Preferably, the clamping surface is provided as a circular truncated cone surface, and a sawtooth structure matched with the clamping section is provided on the clamping surface; the end of the transmission shaft is provided with a stud, and the stud is externally sleeved with a fixing cylinder; when the clamping section is clamped with the clamping surface, the end of the clamping frame is clamped on the inside of the fixing cylinder.

[0014] Preferably, the support seat is provided with a limiting ring on the outside, and the rotating seat is clamped on the limiting ring through a limiting groove on the inside.

[0015] Preferably, the transmission shaft is externally sleeved with a support bearing, the side surface of the support bearing is fixedly connected with the inner wall of the ventilation cover through a support rod, and the side of the support rod facing the filter frame forms an air guide surface through a chamfer.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. When the fan is running, the cleaning blades can be driven to rotate synchronously, the surface of the filter frame can be automatically cleaned, the filter holes can be prevented from being blocked by dust and other impurities, the ventilation efficiency can be maintained, and the labor cleaning cost and frequency can be reduced.

[0018] 2. The transmission motor of the fan is used as the power source for rotating the cleaning blades, no additional power device needs to be arranged, the overall structure is simplified, the device cost and energy consumption are reduced, and the combination of ventilation and cleaning functions is realized. BRIEF DESCRIPTION OF DRAWINGS

[0019] The disclosure of the utility model will be described with reference to the drawings. It should be understood that the drawings are only for illustrative purposes, and are not intended to limit the scope of protection of the utility model. In the drawings, the same reference numerals are used to refer to the same parts. Among them:

[0020] Figure 1 The structure of the utility model is shown Figure 1 ;

[0021] Figure 2 The structure of the utility model is shown Figure 2 ;

[0022] Figure 3 The fan, filter frame and cleaning blade assembly of the utility model are shown in the drawings.

[0023] Figure 4 The cleaning blade and clamping frame assembly of the utility model are shown in the drawings.

[0024] Figure 5The utility model discloses a transmission shaft structure schematic view.

[0025] Figure 6 The utility model discloses a filter frame, cleaning blade, transmission shaft cross section schematic view.

[0026] Figure 7 For Figure 6 The enlarged view of A in the middle.

[0027] The mark in the drawing shows: 1, ventilation cover, 11, air duct, 2, fan, 3, filter frame, 31, filter hole, 32, support seat, 33, limit ring, 4, cleaning blade, 41, rotating seat, 42, rotating seat, 43, limit slot, 5, transmission shaft, 51, stud, 52, clamping surface, 6, clamping frame, 61, clamping section, 7, fixed cylinder, 8, support bearing, 81, support rod, 82, air guide surface. Specific embodiments

[0028] It is easy to understand that according to the technical scheme of the utility model, a plurality of structure modes and implementation modes that can be replaced each other can be proposed by the general technical personnel in the art without changing the utility model essential spirit. Therefore, the following specific embodiments and drawings are only exemplary description to the technical scheme of the utility model, and should not be regarded as the whole of the utility model or regarded as the limitation or restriction of the technical scheme of the utility model.

[0029] Embodiments

[0030] As Figure 1 , Figure 2 The utility model discloses a building ventilation energy saving device mainly by ventilation cover 1, fan 2, filter frame 3 is formed, and the inside of ventilation cover 1 is equipped with air duct 11, and filter frame 3 is located the air inlet end of air duct 11, and fan 2 is placed the air outlet end of air duct 11.

[0031] Please refer to Figure 3 , filter frame 3 is set to the arc-shaped frame that protrudes towards fan 2 direction, and this design helps to guide the air flow, and it is convenient for air to pass through filter frame 3 and then enter air duct 11, which helps to improve the filtering efficiency. Filter frame 3 surface is distributed with filter hole 31, which is used for filtering the air entering air duct 11. The annular support seat 32 is arranged at the middle part of filter frame 3 and is used for rotating seat 41.

[0032] Please refer to Figure 4The cleaning blade 4 is arranged on the side of the filter frame 3 away from the fan 2 and is attached to the surface of the filter frame 3. A brush is arranged on the side attached to the filter frame 3 to improve the cleaning effect on the filter frame 3. The cleaning blade 4 is fixedly connected to the rotating seat 41, which is sleeved on the support seat 32 at the middle part of the filter frame 3. Thus, the cleaning blade 4 can rotate to clean the surface of the filter frame 3 and remove the dirt filtered by the filter frame 3 to avoid the filter holes 31 from being blocked by the dirt.

[0033] Please refer to Figure 3 、 Figure 5 、 Figure 6 、 Figure 7 The inner side of the rotating seat 41 is clamped on the limiting ring 33 through the limiting groove 43, so that the rotating seat 41 can rotate on the support seat 32 to avoid axial movement and ensure the stability of rotation.

[0034] The rotating seat 41 is provided with a rotating seat 42, and the rotating seat 42 is provided with a clamping frame 6 through a rotating shaft. The middle section of the clamping frame 6 is a clamping section 61, and the transmission shaft 5 is correspondingly provided with a clamping surface 52. The clamping surface 52 is a circular truncated cone surface, and the clamping surface 52 and the clamping section 61 are provided with a sawtooth structure matched with each other. The end of the transmission shaft 5 is provided with a stud 51, and the stud 51 is externally sleeved with a fixing cylinder 7.

[0035] When the clamping section 61 is attached to the clamping surface 52 after rotation, the sawtooth structures of the two are clamped and locked with each other, and the end of the clamping frame 6 is clamped on the inner side of the fixing cylinder 7, which ensures that the clamping frame 6 is in a stable state, and further ensures that the clamping surface 52 and the clamping section 61 are stably clamped, thereby ensuring stable transmission between the transmission shaft 5 and the rotating seat 41, and reliable power transmission.

[0036] The transmission motor in the fan 2 provides power for the entire device, which is connected to one end of the transmission shaft 5. The other end of the transmission shaft 5 passes through the filter frame 3 and is connected to the rotating seat 41. When the fan 2 starts, the transmission motor drives the transmission shaft 5 to rotate, which in turn drives the rotating seat 41 and the cleaning blade 4 connected thereto to rotate, thereby achieving automatic cleaning of the filter frame 3.

[0037] The transmission shaft 5 is externally sleeved with a support bearing 8, and the support bearing 8 is fixedly connected to the inner wall of the ventilation cover 1 through a support rod 81. The side of the support rod 81 facing the filter frame 3 forms a wind guide surface 82 through chamfering, which can guide the air to flow more smoothly in the air duct 11, reduce air resistance, and improve ventilation efficiency.

[0038] When the fan 2 starts, the external air enters from the air inlet end of the air duct 11, and when passing through the filter frame 3, the impurities in the air are intercepted by the filter holes 31. At the same time, the transmission motor drives the transmission shaft 5 to rotate in the fan 2, the transmission shaft 5 drives the rotating seat 41 to rotate through the clamping structure with the rotating seat 41, and then the cleaning blade 4 sweeps the surface of the filter frame 3 to clean the impurities on the surface of the filter frame 3, so that the filter holes 31 are not blocked, the air can continuously and smoothly pass through the filter frame 3 into the air duct 11, and finally is discharged from the air outlet end of the air duct 11 to the indoor or other designated position by the fan 2, so that the purpose of efficient ventilation and energy saving is realized.

[0039] The technical scope of the utility model is not only limited to the contents in the above description, and the skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical thought of the utility model, and these deformations and modifications should all belong to the protection scope of the utility model.

Claims

1. A building ventilation energy saving device, characterized in that: The ventilation cover (1) is internally provided with an air duct (11), and a filter frame (3) and a fan (2) are respectively arranged at the air inlet end and the air outlet end of the air duct (11); The side of the filter frame (3) away from the fan (2) is provided with a cleaning blade (4) which is attached to the surface of the filter frame (3); The surface of the filter frame (3) is provided with filter holes (31), and an annular support seat (32) is arranged at the middle part of the filter frame (3), the support seat (32) is externally sleeved with a rotating seat (41), and the cleaning blade (4) is fixedly connected with the rotating seat (41); The transmission shaft (5) is connected with the transmission motor in the fan (2) at one end, and passes through the filter frame (3) at the other end and is connected with the rotating seat (41).

2. The building ventilation energy saving device according to claim 1, characterized in that: The filter frame (3) is arranged as an arc-shaped frame protruding towards the fan (2), and the side of the cleaning blade (4) attached to the filter frame (3) is provided with bristles.

3. The building ventilation energy saving device according to claim 1 or 2, characterized in that: The rotating seat (41) is provided with a rotating seat (42), and the rotating seat (42) is provided with a clamping frame (6) through a rotating shaft; the middle section of the clamping frame (6) is arranged as a clamping section (61), and the transmission shaft (5) is correspondingly provided with a clamping surface (52); the clamping section (61) is clamped and locked with the clamping surface (52) after rotation.

4. The building ventilation energy saving device according to claim 3, characterized in that: The clamping surface (52) is arranged as a circular truncated cone surface, and a sawtooth structure is arranged on the clamping surface (52) and the clamping section (61) in a matched manner; the end of the transmission shaft (5) is provided with a stud (51), and the stud (51) is externally sleeved with a fixing cylinder (7); when the clamping section (61) is attached to the clamping surface (52), the end of the clamping frame (6) is clamped on the inside of the fixing cylinder (7).

5. The building ventilation energy saving device according to claim 1 or 2, characterized in that: The support seat (32) is externally provided with a limiting ring (33), and the rotating seat (41) is clamped on the limiting ring (33) through a limiting groove (43) on the inside.

6. The building ventilation energy saving device according to claim 1 or 2, characterized in that: The transmission shaft (5) is externally sleeved with a support bearing (8), the side of the support bearing (8) is fixedly connected with the inner wall of the ventilation cover (1) through a support rod (81), and the side of the support rod (81) towards the filter frame (3) forms a guide surface (82) through a chamfer.

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