Energy-saving building ventilation device

Abstract

The present invention relates to the technical field of building ventilation. The present application discloses an energy-saving building ventilation device, including an air inlet channel, slide grooves are arranged on both sides of the air inlet channel inner cavity near the top, and on both sides of the partition near the top, contact rods are fixedly installed on both sides of the air inlet channel inner cavity near the front end and below the slide grooves, and on both sides of the partition below the slide grooves, and a stroke device is movably installed inside the two adjacent slide grooves. The stroke device moves as a whole to a position close to the back of the air inlet channel inner cavity, and the external air flow can enter the inner cavity of the air inlet channel through the first air port. As the stroke device moves backward as a whole, the second air port is in an open state, and the external air can pass through the dustproof net in the reverse direction through the first air port, enter the interior of the dust collecting device through the second air port, and finally enter the interior of the air supply channel. In this process, since the air flow passes through the dustproof net in the reverse direction, the debris attached to the front of the dustproof net is cleaned.

Description

Technical Field

[0001] The present application relates to the technical field of building ventilation, and in particular to an energy-saving building ventilation device. Background Art

[0002] Building ventilation equipment can effectively improve the living and working environment inside the building. Traditional building ventilation equipment consists of ventilation ducts, blowers and filtering equipment. During use, the blower generates negative pressure inside the air duct. Under this action, the external air enters the air duct and is sent to various rooms inside the building. During this process, the filtering equipment will filter out dust in the air to prevent blockage. After long-term use, the windward surface of the filter in the filtering equipment will be attached by dust and debris, resulting in a decrease in the air passing efficiency, thereby affecting the ventilation efficiency inside the building. In this regard, the present application document proposes an energy-saving building ventilation device to solve the above-mentioned problems. Summary of the invention

[0003] The present application proposes an energy-saving building ventilation device, which has the function of reversely impacting the filter screen without stopping the machine to achieve cleaning, so as to solve the problem of reduced ventilation efficiency due to filter screen blockage in traditional equipment.

[0004] To achieve the above objectives, the present application adopts the following technical solution: an energy-saving building ventilation device, including an air inlet channel and an air supply channel, which guide the air flow to ventilate the interior of the building.

[0005] Specifically, the top of the air supply channel is connected to the bottom of the air inlet channel at a position near the back, and the inner cavity of the air inlet channel and the air supply channel are connected, a partition is fixedly installed at a position near the front end of the inner cavity of the air inlet channel, and the partitions are distributed in a linear array manner, slide grooves are provided at positions near the top on both sides of the inner cavity of the air inlet channel, and at positions near the top on both sides of the partition, contact rods are fixedly installed at positions near the front end of the inner cavity of the air inlet channel and below the slide grooves, and at positions below the slide grooves on both sides of the partition, and travel devices are movably installed inside the two adjacent slide grooves, a first air outlet is provided at a position near the top on the back of the air inlet channel, the first air outlets are distributed in a linear array, a wind shield is fixedly installed at a position above the first air outlet on the back of the air inlet channel, a second air outlet is opened at a position on the front side of the air supply channel at the bottom of the air inlet channel, the second air outlets are distributed in a linear array, and a dust collecting device is fixedly installed at a position corresponding to the second air outlet at the bottom of the air inlet channel, and the dust collecting device can change the flow direction of air inside the air inlet channel.

[0006] Specifically, a blower is fixedly installed at a position near the bottom of the back side of the air supply channel. During the operation of the blower, the outside air is driven to enter the interior of the air supply channel through the front end opening of the air inlet channel.

[0007] Specifically, a spring groove is provided on the back side of the inner cavity of the air inlet channel near the bottom, a limiting rod is fixedly installed on the bottom of the spring groove, a return spring is clamped at a position outside the limiting rod at the bottom of the spring groove, and a lock hole is provided on the bottom of the first air outlet near the front side.

[0008] Furthermore, the stroke device includes a stroke air duct, and connecting seats are provided on both sides of the outer surface of the stroke air duct near the front end. A sealing device is fixedly installed on the front side of the connecting seat by bolt connection. The sealing device can play a role of keeping out rain in the initial situation, and can close the air inlet to prevent the entry of debris or insects and animals when the machine is shut down.

[0009] Specifically, connecting seats are provided at the bottom of both sides of the inner cavity of the travel air duct, and travel deep holes are provided on the back of the connecting seats. The travel deep holes cooperate with the limiting rods in a telescopic manner to limit the moving direction of the travel air duct.

[0010] Specifically, the front section of the return spring is connected to the end of the connecting seat, and the elastic potential energy of the return spring itself can drive the travel air duct to reset.

[0011] Specifically, a fixing plate is provided at the position where the top of the back side of the travel air duct is clamped, a flow guide device is fixedly installed on the back side of the fixing plate, and a dustproof net is provided at a position near the front end of the inner cavity of the travel air duct, and the dustproof net is used to filter debris and dust in the air.

[0012] Furthermore, the blocking device includes two slide bars, which are movably mounted inside two adjacent slide grooves, respectively, to limit the mounting holes so that the slide bars can only move along the extension direction of the slide grooves.

[0013] Specifically, a mounting hole is provided on the inner side of the sliding rod near the front end, a connecting shaft I is sleeved inside the mounting hole, a driving spring is clamped at a position outside the connecting shaft I at the bottom of the mounting hole, and elastic potential energy is stored in the driving spring in the initial state. When the sealing plate is out of contact with the contact rod, the elastic force of the sealing plate drives the sealing plate to rotate to a vertical state.

[0014] Specifically, one end of the driving spring is connected to the connecting shaft I, and a sealing plate is fixedly installed on one end of the connecting shaft I.

[0015] Furthermore, the bottom of the sealing plate is in contact with the contact rod.

[0016] Furthermore, the flow guide device includes a flow guide channel, and coupling seats are fixedly installed on both sides of the top of the flow guide channel near the back side. The coupling seat and the internal movable sleeve of the coupling seat are provided with a connecting shaft II, and the connecting shaft II can drive the rotating shaft to reset.

[0017] Specifically, a rotating shaft is fixedly sleeved on the outer surface of the connecting shaft II, push plates are arranged at both ends of the rotating shaft, one end of the push plate is connected to the coupling seat, a push plate is fixedly installed on the top of the rotating shaft, a baffle is fixedly installed on the bottom of the rotating shaft, a limiting sleeve is fixedly installed on the bottom of the inner cavity of the guide channel, the limiting sleeve passes through the bottom of the guide channel, and a locking rod is movably installed inside the limiting sleeve.

[0018] Specifically, the baffle closes the end of the guide channel in the initial state.

[0019] Furthermore, the top of the rotating shaft is kept flush with the top of the first air outlet. When the guide channel cooperates with the first air outlet, the push plate will contact the back of the inner cavity of the fixed plate and push the push plate to drive the rotation of the rotating shaft, so that the back of the guide channel is in an open state.

[0020] Specifically, the interior of the locking rod is set to be hollow, and the material of the locking rod is a lightweight aluminum alloy material. When the gas flow rate through the guide channel is high, the negative pressure will attract the locking rod upwards. When the gas flow rate through the guide channel decreases, the locking rod falls under the action of gravity.

[0021] Specifically, the locking rod is in the shape of an inverted frustum as a whole, so that when the locking rod contacts the fixing plate, the fixing plate will push the locking rod into the interior of the limiting sleeve under the action of the inclined surface at the bottom of the locking rod.

[0022] Furthermore, the dust collecting device includes an upper mounting plate, a lower mounting plate and a front dust collecting pipe, the upper mounting plate and the lower mounting plate are respectively fixedly connected to the bottom of the air inlet channel and the front side of the air supply channel, the front end of the front dust collecting pipe is fixedly connected to the upper mounting plate, and passes through the upper mounting plate and is connected to the inner cavity of the air inlet channel, a dust collecting bin is fixedly installed at the end of the front dust collecting pipe, and a dust collecting pull-out box is provided at the bottom of the dust collecting bin, and the dust collecting pull-out box is used to collect dust and debris attached to the surface of the dustproof net.

[0023] Specifically, a rear dust collecting pipe is fixedly installed on the back of the dust collecting bin, the rear dust collecting pipe is fixedly connected to the lower mounting plate, and the rear dust collecting pipe passes through the lower mounting plate and is communicated with the inner cavity of the air supply channel.

[0024] This application has the following beneficial effects.

[0025] The device can clean the dust screen without stopping the machine and without reversing the blower, thereby avoiding the problem of excessive attachments on the surface of the dust screen blocking the airflow. The device utilizes the gravity of the locking rod itself. When the attachments on the surface of the dust screen are cleaned, the air flow speed inside the guide channel is increased, and the negative pressure effect is utilized to drive the locking rod to move upward, so that the locking rod and the lock hole are automatically unlocked after the dust screen is cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings, which constitute a part of the specification, illustrate embodiments disclosed in the present application and, together with the description, serve to explain the principles disclosed in the present application.

[0027] The present disclosure may be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0028] Figure 1 It is a structural diagram of the present invention;

[0029] Figure 2 It is a cross-sectional view of the structure of the present invention;

[0030] Figure 3 It is the main structure diagram of the present invention;

[0031] Figure 4 It is a cross-sectional view of the main structure of the present invention;

[0032] Figure 5 It is a structural stroke device diagram of the present invention;

[0033] Figure 6 It is a cross-sectional view of the structural stroke device of the present invention;

[0034] Figure 7 This is a diagram of the structural blocking device of the present invention;

[0035] Figure 8 A top view of the structural blocking device of the present invention;

[0036] Fig. 9 The structure of the present invention Figure 8 Sectional view in the middle AA direction;

[0037] Fig.10 This is a diagram of the flow guide device structure of the present invention;

[0038] Fig.11 It is a cross-sectional view of the structural stop device of the present invention;

[0039] Fig.12 This is a diagram of a dust collecting device of the present invention;

[0040] Fig.13 It is a cross-sectional view of the dust collecting device of the present invention.

[0041] In the figure; 1, air inlet channel; 2, air supply channel; 3, partition; 4, slide; 5, contact rod; 6, travel device; 61, travel air duct; 62, connecting seat; 63, blocking device; 631, slide rod; 632, mounting hole; 633, connecting shaft I; 634, driving spring; 635, blocking plate; 64, connecting seat; 65, travel deep hole; 66, fixing plate; 67, guide device; 671, guide channel; 672, coupling seat; 673, connecting shaft II; 6 74. Rotating shaft; 675. Push plate; 676. Baffle; 677. Limiting sleeve; 678. Locking rod; 68. Dust screen; 7. First air outlet; 8. Wind shield; 9. Second air outlet; 10. Dust collecting device; 101. Upper mounting plate; 102. Lower mounting plate; 103. Front dust collecting pipe; 104. Dust collecting bin; 105. Dust collecting pull-out box; 106. Rear dust collecting pipe; 11. Blower; 12. Spring slot; 13. Limiting rod; 14. Reset spring; 15. Locking hole. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0043] An energy-saving building ventilation device, see Figure 1-Figure 4 , including an air inlet channel 1 and an air supply channel 2, which play the role of guiding airflow to ventilate the interior of the building.

[0044] See also Figure 1-Figure 4The top of the air supply channel 2 is connected to the bottom of the air inlet channel 1 near the back, and the inner cavities of the air inlet channel 1 and the air supply channel 2 are connected. A partition 3 is fixedly installed near the front end of the inner cavity of the air inlet channel 1. The partitions 3 are distributed in a linear array. Slide grooves 4 are arranged near the top of both sides of the inner cavity of the air inlet channel 1 and near the top of both sides of the partition 3. Contact rods 5 are fixedly installed at positions near the front end of the inner cavity of the air inlet channel 1 and below the slide grooves 4, and at positions below the slide grooves 4 on both sides of the partition 3. The two adjacent contact rods 5 are fixedly installed. A travel device 6 is movably installed inside the slide groove 4, a first air outlet 7 is arranged on the back side of the air inlet channel 1 near the top, the first air outlet 7 is distributed in a linear array, a wind shield 8 is fixedly installed on the back side of the air inlet channel 1 above the first air outlet 7, a second air outlet 9 is opened at the bottom of the air inlet channel 1 in front of the air supply channel 2, the second air outlet 9 is distributed in a linear array, a dust collecting device 10 is fixedly installed at the bottom of the air inlet channel 1 corresponding to the second air outlet 9, and the dust collecting device 10 can change the flow direction of the air inside the air inlet channel 1.

[0045] See also Figure 1-Figure 4 A blower 11 is fixedly installed at a position near the bottom of the back side of the air supply channel 2. During the operation of the blower 11, the outside air will be driven to enter the interior of the air supply channel 2 through the front end opening of the air inlet channel 1.

[0046] See also Figure 1-Figure 4 A spring groove 12 is provided on the back side of the inner cavity of the air inlet channel 1 near the bottom, a limiting rod 13 is fixedly installed on the bottom of the spring groove 12, a return spring 14 is clamped on the bottom of the spring groove 12 at a position outside the limiting rod 13, and a lock hole 15 is provided on the bottom of the first air outlet 7 near the front side.

[0047] See also Figure 5-Figure 6 The stroke device 6 includes a stroke air duct 61, and connecting seats 62 are arranged on both sides of the outer surface of the stroke air duct 61 near the front end. A sealing device 63 is fixedly installed on the front side of the connecting seat 62 by bolt connection. The sealing device 63 can play a role of keeping out rain in the initial situation, and can close the air inlet to prevent the entry of debris or insects and animals when the machine is stopped.

[0048] See also Figure 5-Figure 6 A connecting seat 64 is provided at the bottom of both sides of the inner cavity of the travel air duct 61, and a travel deep hole 65 is provided on the back of the connecting seat 64. The travel deep hole 65 cooperates with the limiting rod 13 in a telescopic manner, thereby limiting the moving direction of the travel air duct 61.

[0049] See also Figure 4-Figure 6The front section of the return spring 14 is connected to the end of the connecting seat 64, and the elastic potential energy of the return spring 14 itself can drive the travel air duct 61 to reset.

[0050] See also Figure 2-Figure 6 A fixing plate 66 is provided at the position where the top of the back of the stroke air duct 61 is clamped, and a guide device 67 is fixedly installed on the back of the fixing plate 66. A dust screen 68 is provided at a position near the front end of the inner cavity of the stroke air duct 61. The dust screen 68 is used to filter debris and dust in the air. When a large amount of debris is attached to the surface of the dust screen 68 and creates resistance to the airflow, a thrust is generated when the airflow passes through the dust screen 68. As the efficiency of the dust screen 68 decreases, the thrust of the airflow on the dust screen 68 increases. Under this action, the stroke device 6 moves as a whole to a position close to the back of the inner cavity of the air inlet channel 1. Finally, the guide device 67 cooperates with the first air outlet 7. At this time, the external airflow can enter the inner cavity of the air inlet channel 1 through the first air outlet 7. In the cavity, at the same time, with the overall backward movement of the stroke device 6, the second air outlet 9 is in an open state. At this time, with the low pressure generated by the operation of the blower 11, the outside air can pass through the first air outlet 7 in the reverse direction through the dustproof net 68, enter the interior of the dust collecting device 10 through the second air outlet 9, and finally enter the interior of the air supply channel 2. In this process, since the airflow passes through the dustproof net 68 in the reverse direction, the debris attached to the front of the dustproof net 68 is cleaned, and the device achieves the cleaning effect of the dustproof net 68 under the premise that the blower 11 does not stop and the blower 11 does not reverse. During the cleaning, the other stroke devices 6 are still in a normal ventilation state, which has little impact on the ventilation effect inside the building, thereby improving the practicability of the device.

[0051] See also Figure 3 and Figure 7-Figure 9 The blocking device 63 includes two slide bars 631 , which are movably mounted inside two adjacent slide grooves 4 , respectively, to limit the mounting hole 632 so that it can only move along the extension direction of the slide groove 4 .

[0052] See also Figure 7-Figure 9 A mounting hole 632 is provided on the inner side of the slide rod 631 near the front end, a connecting shaft Ⅰ 633 is sleeved inside the mounting hole 632, a driving spring 634 is clamped on the bottom of the mounting hole 632 at a position outside the connecting shaft Ⅰ 633, and the driving spring 634 stores elastic potential energy in the initial state. When the sealing plate 635 is out of contact with the contact rod 5, the elastic force of the sealing plate 635 drives the sealing plate 635 to rotate to a vertical state.

[0053] See also Figure 7-Figure 9 One end of the driving spring 634 is connected to the connecting shaft Ⅰ633, and a sealing plate 635 is fixedly installed on one end of the connecting shaft Ⅰ633.

[0054] See also Figure 3 , Figure 7-Figure 9 , the bottom of the baffle plate 635 is in contact with the contact rod 5. In the initial state, the stroke device 6 is located at the front end of the inner cavity of the air inlet channel 1 and between the partitions 3. At this time, the slide rod 631 extends from the inside of the slide groove 4, and the bottom end of the baffle plate 635 is in contact with the contact rod 5, so that the baffle plate 635 is in a horizontal state, thereby shielding rainwater or debris, preventing rainwater and debris from entering the interior of the air inlet channel 1, thereby affecting the ventilation effect of the device and improving the stability of the device.

[0055] See also Figure 2-Figure 3 and Figure 7-Figure 9 The stroke device 6 is located at the front end of the inner cavity of the air inlet channel 1 and between the partitions 3. At this time, the slide rod 631 extends from the inside of the slide groove 4, and the bottom end of the sealing plate 635 contacts the contact rod 5, so that the sealing plate 635 is in a horizontal state, thereby shielding rainwater or debris, preventing rainwater and debris from entering the interior of the air inlet channel 1, thereby affecting the ventilation effect of the device, and improving the stability of the device.

[0056] See also Figure 10-11 The flow guide device 67 includes a flow guide channel 671, and coupling seats 672 are fixedly installed on both sides of the top of the flow guide channel 671 near the back. The coupling seat 672 has an internal movable sleeve with a connecting shaft II 673, and the connecting shaft II 673 can drive the rotating shaft 674 to reset.

[0057] See also Figure 10-11 A rotating shaft 674 is fixedly sleeved on the outer surface of the connecting shaft II 673, and push plates 675 are arranged at both ends of the rotating shaft 674. One end of the push plate 675 is connected to the coupling seat 672, and a push plate 675 is fixedly installed on the top of the rotating shaft 674. A baffle plate 676 is fixedly installed on the bottom of the rotating shaft 674. A limiting sleeve 677 is fixedly installed on the bottom of the inner cavity of the guide channel 671. The limiting sleeve 677 runs through the bottom of the guide channel 671, and a locking rod 678 is movably installed inside the limiting sleeve 677.

[0058] See also Figure 10-11 In the initial state, the baffle 676 closes the end of the guide channel 671.

[0059] See also Figure 2 and Figure 10-11 , the top of the rotating shaft 674 remains flush with the top of the first air outlet 7. When the guide channel 671 cooperates with the first air outlet 7, the push plate 675 will contact the back of the inner cavity of the fixed plate 66 and push the push plate 675 to drive the rotation of the rotating shaft 674, so that the back of the guide channel 671 is in an open state.

[0060] See also Figure 10-11 The interior of the locking rod 678 is set to be hollow, and the material of the locking rod 678 is a lightweight aluminum alloy material. When the gas flow rate through the guide channel 671 is high, the negative pressure will attract the locking rod 678 upwards. When the gas flow rate through the guide channel 671 decreases, the locking rod 678 falls under the action of gravity.

[0061] See also Figure 2 , Figure 5-Figure 6 and Figure 10-11 The locking rod 678 is in the shape of an inverted truncated cone as a whole, so that when the locking rod 678 contacts the fixing plate 66, under the action of the inclined surface at the bottom of the locking rod 678, the fixing plate 66 will push the locking rod 678 to the inside of the limiting sleeve 677. When the air guide device 67 cooperates with the first air outlet 7, and the airflow enters through the first air outlet 7 and impacts the dustproof net 68 in the reverse direction, the locking rod 678 and the locking hole 15 are in a corresponding state at this time. Due to the excessive attachments on the surface of the dustproof net 68, the airflow velocity passing through is relatively low. The locking rod 678 falls into the inside of the locking hole 15 under the action of gravity and achieves the effect of clamping. At this time, the stroke device 6 as a whole will not be directly reset due to the elastic force of the reset spring 14, so that the external air The air can stably enter the interior of the air inlet channel 1 through the first air outlet 7 and flush the dustproof net 68. As the attachments on the surface of the dustproof net 68 fall off, the speed of the airflow through the travel air duct 61 increases, and a large pressure difference is generated at the top and bottom of the locking rod 678. Under this action, the locking rod 678 moves upward and releases the engagement with the locking hole 15. The elastic force of the reset spring 14 is released and pushes the travel device 6 to the initial position. At this time, the guide device 67 is out of contact with the first air outlet 7, and the second air outlet 9 is closed by the travel air duct 61. The outside air enters the interior of the air inlet channel 1 through the front end of the air inlet channel 1, so that the travel device 6 is in a normal ventilation state.

[0062] When the baffle plate 676 is in an open state, the baffle plate 676 is in a horizontal state. When the guide device 67 continues to move toward the direction close to the wind shield 8, the baffle plate 676 in a horizontal state will push the wind shield 8 open, ensuring that foreign gas can enter the interior of the air inlet channel 1 through the first air vent 7, and when the wind shield plate 8 is in a closed state, due to the gas flow inside the air inlet channel 1, the wind shield plate 8 is in a closed state under a negative pressure state, thereby blocking the outside gas from entering the interior of the air inlet channel 1 through the first air vent 7, ensuring that during normal ventilation operation, the filtered gas is prevented from entering the interior of the air inlet channel 1, causing the air quality inside the building to be affected.

[0063] See also Figure 5-Figure 6 and Figure 12-13The dust collecting device 10 includes an upper mounting plate 101, a lower mounting plate 102 and a front dust collecting pipe 103. The upper mounting plate 101 and the lower mounting plate 102 are respectively fixedly connected to the bottom of the air inlet channel 1 and the front side of the air supply channel 2. The front end of the front dust collecting pipe 103 is fixedly connected to the upper mounting plate 101, and passes through the upper mounting plate 101 to communicate with the inner cavity of the air inlet channel 1. A dust collecting bin 104 is fixedly installed at the end of the front dust collecting pipe 103. A dust collecting pull-out box 105 is provided at the bottom of the dust collecting bin 104. The dust collecting pull-out box 105 is used to collect dust and debris attached to the surface of the dustproof net 68.

[0064] See also Figure 2 and Figure 12-13 A rear dust collecting pipe 106 is fixedly installed on the back of the dust collecting bin 104 , the rear dust collecting pipe 106 is fixedly connected to the lower mounting plate 102 , and the rear dust collecting pipe 106 passes through the lower mounting plate 102 and is connected to the inner cavity of the air supply channel 2 .

[0065] The method of use of the present invention is as follows:

[0066] During use, in the initial state, the stroke device 6 is located at the front end of the inner cavity of the air inlet channel 1 and between the partitions 3. At this time, the sliding rod 631 extends from the inside of the slide groove 4, and the bottom end of the sealing plate 635 contacts the contact rod 5, so that the sealing plate 635 is in a horizontal state, thereby playing a role in shielding rainwater or debris. When a large amount of debris is attached to the surface of the dustproof net 68 and creates resistance to the airflow, it causes the airflow to generate thrust when passing through the dustproof net 68. As the efficiency of the dustproof net 68 decreases, the thrust of the airflow on the dustproof net 68 increases. Under this action, the stroke device 6 moves as a whole to a position close to the back of the inner cavity of the air inlet channel 1, and finally the guide device 67 cooperates with the first air outlet 7. At this time, the external airflow can The air enters the inner cavity of the air inlet channel 1 through the first air outlet 7. At the same time, as the stroke device 6 moves backward as a whole, the second air outlet 9 is in an open state. At this time, as the low pressure generated by the operation of the blower 11 is generated, the outside air can pass through the first air outlet 7 in the reverse direction through the dustproof net 68, enter the interior of the dust collecting device 10 through the second air outlet 9, and finally enter the interior of the air supply channel 2. In this process, since the airflow passes through the dustproof net 68 in the reverse direction, the debris attached to the front of the dustproof net 68 is cleaned, so that the device can achieve the cleaning effect of the dustproof net 68 without stopping the blower 11 and reversing the blower 11. During the cleaning, the other stroke devices 6 are still in a normal ventilation state, and the impact on the ventilation effect inside the building is small. When the stroke device 6 moves as a whole toward the direction approaching the air inlet channel 1 and the flow guide device 67 cooperates with the first air outlet 7, the sealing plate 635 is out of contact with the contact rod 5, and the elastic potential energy stored in the driving spring 634 is released, driving the sealing plate 635 to rotate and be in a vertical state, thereby sealing the front opening end of the air inlet channel 1, so that when the gas enters the air inlet channel 1 through the first air outlet 7, the sealing plate 635 can play a role in sealing the front end opening of the air inlet channel 1. When the flow guide device 67 cooperates with the first air outlet 7, and the airflow enters through the first air outlet 7 and impacts the dustproof net 68 in the opposite direction, the locking rod 678 and the locking hole 15 are in a corresponding state. , so that the air flow rate is low, and the locking rod 678 falls into the locking hole 15 under the action of gravity and achieves the effect of clamping. At this time, the stroke device 6 as a whole will not be directly reset due to the elastic force of the reset spring 14, so that the outside air can stably enter the inside of the air inlet channel 1 through the first air outlet 7 and flush the dustproof net 68. As the attachments on the surface of the dustproof net 68 fall off, the speed of the air flow through the stroke air duct 61 increases, and a large pressure difference is generated at the top and bottom of the locking rod 678. Under this action, the locking rod 678 moves upward and releases the clamping state of the locking hole 15. The elastic force of the reset spring 14 is released and pushes the stroke device 6 to the initial position. At this time, the guide device 67 is out of contact with the first air outlet 7.At the same time, the second air outlet 9 is closed by the travel air duct 61, and the outside air enters the interior of the air inlet channel 1 through the front end of the air inlet channel 1, so that the travel device 6 is in a normal ventilation state. When the baffle 676 is in an open state, the baffle 676 is in a horizontal state. When the guide device 67 continues to move toward the direction close to the wind shield 8, the baffle 676 in a horizontal state will push the wind shield 8 open, ensuring that foreign gas can enter the interior of the air inlet channel 1 through the first air outlet 7, and when the wind shield 8 is in a closed state, due to the gas flow inside the air inlet channel 1, the wind shield 8 is in a closed state under a negative pressure state, at this time, the outside gas is blocked from entering the interior of the air inlet channel 1 through the first air outlet 7, ensuring normal ventilation.

Claims

1. An energy-saving building ventilation device, characterized in that: The invention comprises an air inlet channel (1) and an air supply channel (2), wherein the top of the air supply channel (2) is connected to the bottom of the air inlet channel (1) at a position close to the back, and the inner cavities of the air inlet channel (1) and the air supply channel (2) are connected, a partition plate (3) is fixedly installed at a position close to the front end of the inner cavity of the air inlet channel (1), and the partition plates (3) are distributed in a linear array, and slide grooves (4) are arranged at positions close to the top on both sides of the inner cavity of the air inlet channel (1) and at positions close to the top on both sides of the partition plates (3), and contact rods (5) are fixedly installed at positions close to the front end of the inner cavity of the air inlet channel (1) and below the slide grooves (4), and at positions close to the top of both sides of the partition plates (3) below the slide grooves (4), and the adjacent A travel device (6) is movably installed inside the two slide grooves (4); a first air outlet (7) is arranged at a position near the top of the back side of the air inlet channel (1); the first air outlet (7) is distributed in a linear array; a wind shield (8) is fixedly installed at a position above the first air outlet (7) on the back side of the air inlet channel (1); a second air outlet (9) is opened at a position on the front side of the air supply channel (2) at the bottom of the air inlet channel (1); the second air outlet (9) is distributed in a linear array; a dust collecting device (10) is fixedly installed at a position corresponding to the second air outlet (9) at the bottom of the air inlet channel (1); a blower (11) is fixedly installed at a position near the bottom of the back side of the air supply channel (2); the air inlet channel (1) is provided with a plurality of air outlets (9) arranged in ... A spring groove (12) is provided at a position near the bottom of the inner cavity of the channel (1), a limit rod (13) is fixedly installed at the bottom of the spring groove (12), a return spring (14) is clamped at a position outside the limit rod (13) at the bottom of the spring groove (12), a lock hole (15) is provided at a position near the front side of the bottom of the first air outlet (7), the stroke device (6) comprises a stroke air duct (61), connecting seats (62) are provided at positions near the front end on both sides of the outer surface of the stroke air duct (61), a blocking device (63) is fixedly installed on the front side of the connecting seat (62) through bolt connection, and connecting seats (64) are provided at the bottom of both sides of the inner cavity of the stroke air duct (61), and the connecting seats (64) A travel deep hole (65) is provided on the back side of the travel air duct (61), the travel deep hole (65) cooperates with the limit rod (13) in a telescopic manner, and the front section of the return spring (14) is connected to the end of the connecting seat (64). A fixing plate (66) is provided at a position where the top of the back side of the travel air duct (61) is clamped, and a flow guide device (67) is fixedly installed on the back side of the fixing plate (66). A dustproof net (68) is provided at a position near the front end of the inner cavity of the travel air duct (61), and the flow guide device (67) includes a flow guide channel (671). A coupling seat (672) is fixedly installed at a position near the back side of both sides of the top of the flow guide channel (671), and a connecting shaft II (673) is provided in the internal movable sleeve of the coupling seat (672).A rotating shaft (674) is fixedly sleeved on the outer surface of the connecting shaft II (673), and push plates (675) are provided at both ends of the rotating shaft (674). One end of the push plate (675) is connected to the shaft coupling seat (672). The push plate (675) is fixedly installed on the top of the rotating shaft (674), and a baffle (676) is fixedly installed on the bottom of the rotating shaft (674). A limiting sleeve (677) is fixedly installed on the bottom of the inner cavity of the guide channel (671), and the limiting sleeve (677) passes through the bottom of the guide channel (671). A locking rod (678) is movably installed inside the limiting sleeve (677). In the initial state, the baffle (676) closes the end of the guide channel (671). The top of the rotating shaft (674) is kept flush with the top of the first air outlet (7). The inside of the locking rod (678) is set to be hollow, and the material of the locking rod (678) is a lightweight aluminum alloy material. , 2. An energy-saving building ventilation device according to claim 1, characterized in that: The blocking device (63) comprises a sliding rod (631), wherein the number of the sliding rods (631) is two, and the sliding rods (631) are movably mounted inside two adjacent sliding grooves (4), and a mounting hole (632) is provided on the inner side of the sliding rod (631) near the front end, and a connecting shaft I (633) is sleeved inside the mounting hole (632), and a driving spring (634) is clamped at a position outside the connecting shaft I (633) at the bottom of the mounting hole (632), and one end of the driving spring (634) is connected to the connecting shaft I (633), and a blocking plate (635) is fixedly mounted on one end of the connecting shaft I (633).

3. An energy-saving building ventilation device according to claim 2, characterized in that: The bottom of the sealing plate (635) is in contact with the contact rod (5).

4. The energy-saving building ventilation device according to claim 1, characterized in that: The dust collecting device (10) comprises an upper mounting plate (101), a lower mounting plate (102) and a front dust collecting pipe (103); the upper mounting plate (101) and the lower mounting plate (102) are fixedly connected to the bottom of the air inlet channel (1) and the front side of the air supply channel (2) respectively; the front end of the front dust collecting pipe (103) is fixedly connected to the upper mounting plate (101), passes through the upper mounting plate (101) and is connected to the inner cavity of the air inlet channel (1); a dust collecting bin (104) is fixedly installed at the end of the front dust collecting pipe (103); a dust collecting pull-out box (105) is provided at the bottom of the dust collecting bin (104); a rear dust collecting pipe (106) is fixedly installed on the back of the dust collecting bin (104); the rear dust collecting pipe (106) is fixedly connected to the lower mounting plate (102), and passes through the lower mounting plate (102) and is connected to the inner cavity of the air supply channel (2).

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