Passive building indoor suite door automatic ventilation device

Abstract

The utility model particularly relates to an automatic air interchanger for an indoor suite door of a passive building. The automatic air interchanger solves the problem that people having a rest are lack of oxygen or dizzy and lack of strength due to the fact that the concentration of indoor CO2 and PM2.5 cannot be detected in time during night rest of an existing passive building. A lock is arranged on the suite door, an outer ventilation opening is formed in an outer side plate at the top of the door pocket line, an inner ventilation opening located on the inner side of the suite door is formed in a top plate of the door pocket line, an air duct communicated with the outer ventilation opening and the inner ventilation opening is arranged between the outer ventilation opening and the inner ventilation opening, and a power transmission mechanism and a rotary ventilation mechanism are arranged in the door pocket line. Automatic ventilation of the public area and the indoor room is achieved, the CO2 concentration and the PM2.5 concentration in the room are equivalent to those in the public area, the CO2 and PM2.5 concentration detecting instrument installed in the public area can detect the concentration of harmful gas in the closed room in time, the fresh air system is started in time to convey fresh air into the room, the air cleanliness in each independent room is improved, and the indoor environment is protected. And the comfort level of the living environment is further improved.

Description

Technical Field

[0001] The utility model relates to an auxiliary device for a passive building, in particular to an automatic ventilation device for indoor set doors of a passive building. Background Art

[0002] For passive buildings, the air tightness requirements of their external envelope structures are very strict. The overall ventilation frequency of the building is no more than 0.6 times per hour. The indoor air is provided by a fresh air system. The start and stop of the indoor fresh air system are based on the indoor CO2 and PM2.5 concentration detectors. Since the living room and dining room are areas where people gather relatively densely, the detectors of passive buildings are mostly installed in the living room or dining room, which can detect the indoor CO2 and PM2.5 concentrations at any time.

[0003] During rest at night, in order to ensure privacy, the doors of each independent room are closed. Due to the long rest time at night, the CO2 exhaled by the people resting in the room continues to increase. The CO2 and PM2.5 concentration detectors in the restaurant or living room cannot detect the CO2 concentration in each room. Therefore, the fresh air system cannot be turned on in time, resulting in polluted air in the room. In severe cases, it causes hypoxia, which makes the people resting in the room feel dizzy and uncomfortable. Utility Model Content

[0004] In order to solve the problem that the existing passive buildings cannot detect the indoor CO2 and PM2.5 concentrations in time during rest at night, resulting in hypoxia or dizziness and fatigue for the resting personnel, the utility model provides an automatic ventilation device for indoor door sets of passive buildings.

[0005] The utility model is realized by adopting the following technical scheme: an automatic ventilation device for indoor suit doors of passive buildings, comprising a suit door and a door casing, a lock provided on the suit door, an external vent opening provided on the outer side plate of the top of the door casing, an internal vent opening located inside the suit door provided on the top plate of the door casing, an air duct connected to the external vent opening and the internal vent opening is provided between the external vent opening and the internal vent opening, and a power transmission mechanism and a rotary ventilation mechanism are provided in the door casing;

[0006] The power transmission mechanism includes a fixed frame and a transmission shaft located above it and arranged vertically, a transmission rod arranged horizontally on the fixed frame and passing through both ends of the fixed frame, a trigger pressure plate fixed to one end of the transmission rod that contacts the lock tongue of the lock, a rack located above the fixed frame fixed to the side wall of the trigger pressure plate, a baffle located inside the fixed frame fixed to the transmission rod, and a spring sleeved on the transmission rod is arranged between the baffle and the inner wall of the fixed frame;

[0007] The transmission shaft is provided with two positioning ear plates I fixed to the inner wall of the door casing and distributed up and down. The lower end of the transmission shaft is provided with a face gear I, and the upper end of the transmission shaft is provided with a face gear II. A transmission gear I is provided between the face gear I and the rack and meshes with the two. A rotating shaft I is fixed to the center of the transmission gear I, and two positioning ear plates II are provided on the rotating shaft I and fixed to the inner wall of the door casing;

[0008] The rotary ventilation mechanism includes a movable swing rod and two positioning plates fixed to the door casing. The upper and lower ends of the movable swing rod are provided with an upper strip hole and a lower strip hole. The center of the movable swing rod is penetrated by a short shaft fixed to the inner wall of the door casing. A positioning rod and a screw rod are provided between the two positioning plates. A moving block is sleeved on the positioning rod and passes through the screw rod and is threadedly connected to the screw rod. A lower clamping rod is fixed on the moving block and passes through the lower strip hole. One end of the screw rod is provided with a transmission gear II that meshes with the face gear II.

[0009] A movable connecting rod is provided at the upper end of the movable rocker arm, and an upper clamping rod passing through the upper strip hole is fixed to the middle of the movable connecting rod. A rotating rocker arm I and a rotating rocker arm II with one end hinged thereto are provided at both ends of the movable connecting rod. The other end of the rotating rocker arm I is provided with a rotating shaft II connected to the rotation and perpendicular to it, and the other end of the rotating rocker arm II is provided with a rotating shaft III connected to the rotation and perpendicular to it. A ventilation plate I cooperating with the external vent is fixed to the end of the rotating shaft II, and a ventilation plate II cooperating with the internal vent is fixed to the end of the rotating shaft III. Two positioning ear plates III fixed to the door frame are provided on the rotating shaft II and the rotating shaft III.

[0010] The utility model uses the lock as a trigger to ensure automatic ventilation between the public area and the indoor rooms when the indoor door is closed. When the concentration of harmful gases in the indoor rooms exceeds the standard, the detector in the public area drives the fresh air system to start and deliver fresh air to the room, overcoming the problem that the existing passive buildings cannot detect the concentration of indoor CO2 and PM2.5 in time during rest at night, which causes hypoxia or dizziness and fatigue for the resting personnel.

[0011] There are two transmission rods, which are arranged in parallel.

[0012] This mechanism design further improves the stability of the connection between the transmission rod, the trigger pressure plate and the baffle, while ensuring the stability of the movement of the transmission rod.

[0013] The structural design of the utility model is reasonable and reliable. When the indoor door is closed, automatic ventilation is achieved between the public area and the indoor rooms, so that the CO2 and PM2.5 concentrations in the room are equivalent to those in the public area. The CO2 and PM2.5 concentration detectors installed in the public area can timely detect the concentration of harmful gases in the closed room, and promptly start the fresh air system to deliver fresh air to the room, thereby improving the air cleanliness in each independent room and thus improving the comfort of the living environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 for Figure 1 A schematic diagram of the structure in another view;

[0016] Figure 3 for Figure 1 Schematic diagram of the structure of the power transmission mechanism;

[0017] Figure 4 for Figure 1 Schematic diagram of the structure of the rotary ventilation mechanism;

[0018] Figure 5 for Figure 4 Schematic diagram of the structure without the air duct.

[0019] In the figure: 1-suit door, 2-door line, 3-lock, 4-air duct, 5-fixed frame, 6-drive shaft, 7-drive rod, 8-trigger pressure plate, 9-rack, 10-spring, 11-positioning ear plate I, 12-face gear I, 13-face gear II, 14-transmission gear I, 15-rotating axis I, 16-positioning ear plate II, 17-movable rocker, 18-positioning plate, 19-upper strip hole, 20-lower strip hole, 21-short shaft, 22-positioning rod, 23-screw rod, 24-moving block, 25-lower clamping rod, 26-drive gear II, 27-movable connecting rod, 28-upper clamping rod, 29-rotating rocker arm I, 30-rotating rocker arm II, 31-rotating axis II, 32-rotating axis III, 33-ventilation plate I, 34-ventilation plate II, 35-positioning ear plate III. DETAILED DESCRIPTION

[0020] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0021] like Figure 1-5As shown, according to one embodiment of the present invention, there is provided an automatic ventilation device for indoor door sets in a passive building, comprising a door set 1 and a door casing 2, wherein the door set 1 is provided with a lock 3, an external vent is provided on the top outer plate of the door casing 2, an internal vent is provided on the top plate of the door casing 2 and is located inside the door set, an air duct 4 is provided between the external vent and the internal vent to communicate with the two, and a power transmission mechanism and a rotary ventilation mechanism are provided inside the door casing 2;

[0022] The power transmission mechanism includes a fixed frame 5 and a transmission shaft 6 located above it and arranged vertically. A transmission rod 7 is horizontally arranged on the fixed frame 5 and passes through both ends of the fixed frame 5. A trigger pressure plate 8 is fixed to one end of the transmission rod 7 and contacts the lock tongue of the lock 3. A rack 9 located above the fixed frame 5 is fixed to the side wall of the trigger pressure plate 8. A baffle located inside the fixed frame 5 is fixed to the transmission rod 7. A spring 10 is provided between the baffle and the inner wall of the fixed frame 5 and is sleeved on the transmission rod 7.

[0023] The transmission shaft 6 is provided with two positioning ear plates I11 fixed to the inner wall of the door casing 2 and distributed up and down. The lower end of the transmission shaft 6 is provided with a face gear I12, and the upper end of the transmission shaft 6 is provided with a face gear II13. A transmission gear I14 is provided between the face gear I12 and the rack 9 and is engaged with the two. A rotating shaft I15 is fixed to the center of the transmission gear I14, and the rotating shaft I15 is provided with two positioning ear plates II16 fixed to the inner wall of the door casing 2;

[0024] The rotary ventilation mechanism includes a movable rocker arm 17 and two positioning plates 18 fixed to the door casing 2. The upper and lower ends of the movable rocker arm 17 are provided with an upper strip hole 19 and a lower strip hole 20. The center of the movable rocker arm 17 is penetrated by a short shaft 21 fixed to the inner wall of the door casing 2. A positioning rod 22 and a screw rod 23 parallel to each other are provided between the two positioning plates 18. A moving block 24 passing through the screw rod 23 and being threadedly connected to the screw rod 23 is sleeved on the positioning rod 22. A lower clamping rod 25 passing through the lower strip hole 20 is fixed on the moving block 24. One end of the screw rod 23 is provided with a transmission gear II26 meshing with the face gear II13;

[0025] A movable connecting rod 27 is provided at the upper end of the movable connecting rod 17, and an upper clamping rod 28 passing through the upper strip hole 19 is fixed to the middle part of the movable connecting rod 27. A rotating rocker I29 and a rotating rocker II30 with one end hinged thereto are provided at both ends of the movable connecting rod 27. The other end of the rotating rocker I29 is provided with a rotating shaft II31 connected to the rotation and perpendicular to it, and the other end of the rotating rocker II30 is provided with a rotating shaft III32 connected to the rotation and perpendicular to it, and a ventilation plate I33 cooperating with the external vent is fixed to the end of the rotating shaft II31, and a ventilation plate II34 cooperating with the internal vent is fixed to the end of the rotating shaft III32. Two positioning ear plates III35 fixed to the door frame 2 are provided on the rotating shaft II31 and the rotating shaft III32.

[0026] There are two transmission rods 7, which are arranged in parallel.

[0027] During the rest period at night, in order to ensure privacy, the room door is mostly closed. At this time, the lock tongue on the lock 3 touches the trigger pressure plate 8, which drives the rack 9 to move. At the same time, the transmission rod 7 drives the baffle to move and compress the spring 10; the rack 9 moves to drive the transmission gear I14 and the face gear I12 to rotate, which in turn drives the transmission shaft 6 and the face gear II13 to rotate. The face gear II13 drives the transmission gear II26 and the screw rod 23 to rotate. On the basis that the screw rod 23 does not move axially, it drives the moving block 24 to move axially. The lower clamping rod 25 drives the movable rocker 17 to rotate along the short shaft 21, which in turn drives the upper clamping rod 28 and the movable connecting rod 27 to rotate, and then drives the rotating rocker I29 and the rotating rocker II30 to rotate. The rotating rocker I29 drives the rotating shaft II31 and the ventilation plate I33 to rotate and then open. The rotating rocker II30 drives the rotating shaft III and the ventilation plate II34 to rotate and then open. The indoor and outdoor air are connected through the air duct 4 to complete the ventilation of the indoor and outdoor air.

[0028] During the specific implementation process, the inner vent and the outer vent are staggered at a certain height and connected to the air duct 4, which can reduce the interference between the public area of ​​the living room and the bedroom, have a certain noise reduction effect, and improve privacy protection.

[0029] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An automatic ventilation device for indoor door sets in passive buildings, comprising a door set (1) and a door frame (2), wherein a lock (3) is provided on the door set (1), and characterized in that: An external vent is provided on the top outer plate of the door casing (2), an internal vent located on the inner side of the door set is provided on the top plate of the door casing (2), an air duct (4) communicating with the external vent and the internal vent is provided between the external vent and the internal vent, and a power transmission mechanism and a rotary ventilation mechanism are provided in the door casing (2); The power transmission mechanism comprises a fixed frame (5) and a transmission shaft (6) located above the fixed frame and arranged vertically, a transmission rod (7) horizontally arranged on the fixed frame (5) and passing through both ends thereof, a trigger pressure plate (8) in contact with a lock tongue of the lock (3) being fixed to one end of the transmission rod (7), a rack (9) located above the fixed frame (5) being fixed to a side wall of the trigger pressure plate (8), a baffle located inside the fixed frame (5) being fixed to the transmission rod (7), and a spring (10) sleeved on the transmission rod (7) being arranged between the baffle and the inner wall of the fixed frame (5); The transmission shaft (6) is provided with two positioning ear plates I (11) fixed to the inner wall of the door frame (2) and distributed up and down, the lower end of the transmission shaft (6) is provided with a face gear I (12), the upper end of the transmission shaft (6) is provided with a face gear II (13), a transmission gear I (14) meshing with the face gear I (12) and the rack (9) is provided between the face gear I (12), a rotation shaft I (15) is fixed at the center of the transmission gear I (14), and the rotation shaft I (15) is provided with two positioning ear plates II (16) fixed to the inner wall of the door frame (2); The rotary ventilation mechanism includes a movable swing rod (17) and two positioning plates (18) fixed to the door frame (2), the upper and lower ends of the movable swing rod (17) are provided with an upper strip hole (19) and a lower strip hole (20), the center of the movable swing rod (17) is penetrated by a short shaft (21) fixed to the inner wall of the door frame (2), and a positioning rod (22) and a screw rod (23) parallel to each other are provided between the two positioning plates (18), the positioning rod (22) is provided with a moving block (24) passing through the screw rod (23) and being threadedly connected to the screw rod (23), the moving block (24) is fixed with a lower clamping rod (25) passing through the lower strip hole (20), and one end of the screw rod (23) is provided with a transmission gear II (26) meshing with the face gear II (13); The upper end of the movable rocker (17) is provided with a movable connecting rod (27), the middle of the movable connecting rod (27) is fixed with an upper clamping rod (28) passing through the upper strip hole (19), and the two ends of the movable connecting rod (27) are provided with a rotating rocker I (29) and a rotating rocker II (30) with one end hinged thereto, the other end of the rotating rocker I (29) is provided with a rotating shaft II (31) connected to the rotation and perpendicular to the rotation, and the other end of the rotating rocker II (30) is provided with a rotating shaft III (32) connected to the rotation and perpendicular to the rotation, the end of the rotating shaft II (31) is fixed with a ventilation plate I (33) matched with the external vent, and the end of the rotating shaft III (32) is fixed with a ventilation plate II (34) matched with the internal vent, and the rotating shaft II (31) and the rotating shaft III (32) are both provided with two positioning ear plates III (35) fixed to the door frame (2).

2. The automatic ventilation device for indoor door of a passive building according to claim 1, characterized in that: There are two transmission rods (7) arranged in parallel.

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