Ventilation door and window for building

Abstract

The utility model provides a building ventilation door and window which comprises a crank connecting rod structure and a driving unit, the crank connecting rod structure comprises a ventilation push piece and a ventilation rotating shaft which are arranged in parallel, the ventilation door and window comprises a shutter arranged in the ventilation door and window, one end of the ventilation push piece is arranged on the shutter, and the other end of the ventilation push piece is arranged on the shutter. The crank connecting rod structure is arranged at one end of the ventilation push piece, a guide groove in sliding connection with the ventilation rotating shaft is formed in the other end of the ventilation push piece, the driving unit comprises a transmission shaft matched with the crank connecting rod structure in an inserted connection mode, one end of the ventilation rotating shaft is arranged in the guide groove, and the other end of the ventilation rotating shaft is fixedly connected with the transmission shaft. Stable movement of the ventilation push piece is achieved through the guide grooves in sliding connection, a single transmission shaft driving system is used, and the structure is more concise.

Description

Technical Field

[0001] The present application relates to the field of doors and windows, and in particular to a ventilation door and window for buildings. Background Art

[0002] With the continuous development of intelligent buildings, automatic ventilation doors and windows have gradually become popular. These doors and windows can automatically adjust the ventilation status according to indoor environmental parameters such as temperature, humidity, and air quality to improve indoor air quality and living comfort. However, existing automatic ventilation doors and windows are relatively complex in structure, usually using multiple transmission devices and control systems, resulting in high production costs and cumbersome installation and maintenance. For example, some designs use multiple motors, complex gear transmission mechanisms and sensor systems. Although these designs are rich in functions, they also increase the system's failure rate and energy consumption, affecting the user experience.

[0003] In order to simplify the structure of automatic ventilation doors and windows and reduce manufacturing and maintenance costs, some improvement schemes have emerged. Among them, an effective technical solution is to use a crank-connecting rod structure for transmission control. By reducing the number of transmission components and optimizing the structural design, a simpler and more efficient automatic ventilation function is achieved. For example, some designs directly connect the blinds to the crank-connecting rod and use a single motor to drive the crank-connecting rod to move, thereby driving the opening and closing of the blinds, thereby simplifying the system structure and reducing production and use costs. However, although these technical solutions have simplified the structure of automatic ventilation doors and windows to a certain extent, there is still room for improvement in actual application, such as further reducing transmission components and optimizing the connection method.

[0004] According to the description of existing patent CN 114412345 A, although traditional automatic ventilation doors and windows are powerful, their complex structural design brings many drawbacks. First, such designs typically use multiple motors and transmission devices, such as gear sets, slide rails, and connecting rod systems. These complex transmission components not only increase production costs and assembly difficulty, but also increase the overall weight of the doors and windows, affecting their installation and use in buildings. Second, the coordinated control of multiple motors and transmission devices requires complex electrical systems and programming, which not only increases the possibility of system failure but also places high demands on the technical level of maintenance personnel. Once a failure occurs, the cost of repairing and replacing parts is high and the process is cumbersome, seriously affecting the user experience. In addition, these complex transmission mechanisms are prone to wear and loosening during long-term use, resulting in reduced ventilation efficiency of the doors and windows and even potential safety hazards. Especially in harsh environments such as dusty and humid environments, the complex mechanical structure is more susceptible to external factors, increasing the system's failure rate. Finally, the complex transmission system also leads to high energy consumption of doors and windows. The motor and control system consume a large amount of electricity, which does not meet the energy-saving and environmental protection requirements of modern buildings.

[0005] Therefore, there is an urgent need for an improved building ventilation door and window that can solve the defects caused by the complex structure of traditional automatic ventilation doors and windows and meet the market demand for the design of automatic ventilation doors and windows with simplified structure. Utility Model Content

[0006] In view of this, it is necessary to provide a ventilation door and window with a simple structure to solve the above problems.

[0007] The embodiment of the present application provides a ventilation door and window for a building, comprising a crank connecting rod structure and a driving unit.

[0008] The crank-connecting rod structure includes a ventilation push piece and a ventilation shaft arranged in parallel, and the ventilation door and window include a shutter arranged therein, one end of the ventilation push piece is arranged on the shutter, and the other end is provided with a guide groove which is slidably connected to the ventilation shaft, and the driving unit includes a transmission shaft which is plugged into the crank-connecting rod structure, one end of the ventilation shaft is arranged in the guide groove, and the other end is fixedly connected to the transmission shaft.

[0009] In at least one embodiment of the present application, the ventilation door and window include a temperature sensing unit, and the temperature sensing unit is arranged inside the ventilation door and window.

[0010] In at least one embodiment of the present application, the temperature sensing unit includes an output unit, which is provided on the temperature sensor and electrically connected to the driving unit.

[0011] In at least one embodiment of the present application, a clamping hole is provided on the ventilation shaft, and the transmission shaft is inserted into the clamping hole.

[0012] In at least one embodiment of the present application, the ventilation shaft includes a fixed block and a sliding rod, one end of the sliding rod is arranged in the fixed block, and the other end is inserted into the guide groove, the fixed block is provided with a through hole for connecting with the transmission shaft, and the transmission shaft is connected to the through hole of the fixed block.

[0013] In at least one embodiment of the present application, the ventilation door and window includes a fixing member provided on the shutter, one end of the fixing member is fixedly connected to the shutter, and the other end of the fixing member is fixedly connected to the ventilation push piece.

[0014] In at least one embodiment of the present application, the fixing block includes a fixing rod plugged into the ventilation push piece, and the fixing rod is clearance-matched with the ventilation push piece.

[0015] In at least one embodiment of the present application, the ventilation door and window includes a fixed baffle disposed therein, the fixed baffle is provided with a fixing groove, and the driving unit is interference-fitted with the fixing groove.

[0016] In at least one embodiment of the present application, the ventilation door and window includes a shell, the shell is provided with a blind hole, and the shutter is gap-fitted with the blind hole.

[0017] In at least one embodiment of the present application, rotating blocks are provided at both ends of the shutter, and the rotating blocks are clearance-matched with the blind holes.

[0018] The above-mentioned building ventilation doors and windows achieve the purpose of simplifying the structure, improving reliability and ease of use by optimizing the structural design of the ventilation doors and windows. Specifically, the present application adopts a crank-connecting rod structure, including a ventilation push piece and a ventilation rotating shaft arranged in parallel. The smooth movement of the ventilation push piece is achieved through a slidingly connected guide groove, and a single transmission shaft drive system is used to make the structure more concise. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the general structural diagram of ventilation doors and windows;

[0020] Figure 2 This is the driving structure and crank connecting rod structure diagram;

[0021] Figure 3 This is the axial exploded view of the crank-connecting rod structure.

[0022] Description of main component symbols

[0023] 1. Housing; 2. Venetian blinds; 3. Temperature sensing unit; 4. Fixed baffle; 5. Crank-connecting rod structure; 6. Fixing parts; 7. Driving unit; 8. Ventilation push vanes; 9. Ventilation shaft; 10. Transmission shaft; 11. Sliding rod; 12. Rotating block; 100. A ventilation door and window for a building. DETAILED DESCRIPTION

[0024] The embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0025] It should be noted that when a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component. The terms "top", "bottom", "upper", "lower", "left", "right", "front", "back", and similar expressions used herein are for illustrative purposes only.

[0026] An embodiment of the present application provides a ventilation door and window for a building, comprising a crank-connecting rod structure and a drive unit, wherein the crank-connecting rod structure comprises a ventilation push piece and a ventilation shaft arranged in parallel, and the ventilation door and window comprises a shutter arranged inside the door and window, wherein one end of the ventilation push piece is arranged on the shutter, and the other end is provided with a guide groove which is slidably connected to the ventilation shaft, and the drive unit comprises a transmission shaft which is plugged into the crank-connecting rod structure, wherein one end of the ventilation shaft is arranged in the guide groove, and the other end is fixedly connected to the transmission shaft.

[0027] The above-mentioned building ventilation doors and windows achieve the purpose of simplifying the structure, improving reliability and ease of use by optimizing the structural design of the ventilation doors and windows. Specifically, the present application adopts a crank-connecting rod structure, including a ventilation push piece and a ventilation rotating shaft arranged in parallel. The smooth movement of the ventilation push piece is achieved through a slidingly connected guide groove, and a single transmission shaft drive system is used to make the structure more concise.

[0028] The following is combined with Figure 1-3 , some embodiments of the present application are described in detail. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0029] The embodiment of the present application provides a building ventilation door and window 100, comprising a crank connecting rod structure 5 and a driving unit 7.

[0030] The crank-connecting rod structure 5 includes a ventilation push piece 8 and a ventilation shaft 9 arranged in parallel. The ventilation door and window include a shutter 2 arranged therein. One end of the ventilation push piece 8 is arranged on the shutter 2, and the other end is provided with a guide groove slidably connected to the ventilation shaft 9. The driving unit 7 includes a transmission shaft 10 plugged into the crank-connecting rod structure 5. One end of the ventilation shaft 9 is arranged in the guide groove, and the other end is fixedly connected to the transmission shaft 10.

[0031] Specifically, the crank-connecting rod structure 5 includes a ventilation push piece 8 and a ventilation shaft 9. The ventilation push piece 8 converts the rotational motion of the drive unit 7 into a pushing motion through the transmission mode of the crank-connecting rod. The crank-connecting rod structure 5 enables the rotational motion of the drive unit 7 to be effectively transmitted to the ventilation push piece 8, thereby pushing or adjusting the position of the blinds 2 to realize the opening and closing operation of the ventilation doors and windows. One end of the ventilation push piece 8 is fixed on the blinds 2, and the other end is provided with a guide groove, which is slidably connected to the ventilation shaft 9. The guide groove allows the ventilation push piece 8 to slide smoothly when the ventilation shaft 9 rotates, thereby ensuring effective transmission between the push piece and the shaft. The design ensures the stability and reliability of the ventilation push piece 8 during operation. The driving unit 7 includes a transmission shaft 10 that is plugged into the crank-connecting rod structure 5. One end of the ventilation shaft 9 is arranged in the guide groove, and the other end is fixedly connected to the transmission shaft 10. The driving unit 7 transmits power to the ventilation shaft 9 through the transmission shaft 10, and then transmits it to the ventilation push piece 8 through the crank-connecting rod structure 5, thereby realizing the driving operation of the blinds 2. The fixed connection ensures the reliability and stability of power transmission, wherein the crank-connecting rod structure 5 can efficiently convert the rotational motion of the driving unit 7 into the linear pushing motion of the ventilation push piece 8. This transmission method can ensure the smooth and efficient movement of the push piece, so that the shutter 2 can quickly and accurately adjust the opening and closing state. By setting a guide groove between the ventilation push piece 8 and the ventilation shaft 9, the friction and offset caused by movement are reduced, and the stability of the structure is increased. This design reduces the wear between components and improves the durability and service life of doors and windows. Since the drive unit 7 directly cooperates with the crank-connecting rod structure 5 through the transmission shaft 10, automatic operation of doors and windows is realized. This automated design simplifies the complexity of manual operation and improves the convenience of use. The operation process is that the motor or other power source of the drive unit 7 is started, the transmission shaft 10 starts to rotate, and the rotational power of the transmission shaft 10 is transmitted to the ventilation shaft 9 through a fixed connection. The ventilation shaft 9 rotates and drives the ventilation push piece 8 to perform corresponding sliding movement through the guide groove. The ventilation push piece 8 pushes the shutter 2 to open and close, changing the ventilation state of the doors and windows.

[0032] In a specific example, the ventilation door and window include a temperature sensing unit 3, and the temperature sensing unit 3 is arranged inside the ventilation door and window.

[0033] Specifically, the setting of the temperature sensing unit 3 is closely related to the design of the ventilation doors and windows. The data provided by the temperature sensing unit 3 directly affects the ventilation adjustment mechanism of the doors and windows. The integration of the temperature sensing unit 3 enables the entire system to automatically adjust the state of the doors and windows based on temperature information. The temperature sensing unit 3 can detect temperature changes in or near the ventilation doors and windows, which helps to realize an intelligent control system to automatically adjust the ventilation state of the doors and windows, thereby maintaining a comfortable indoor environment. The temperature sensing unit 3 is located inside the doors and windows. This positional relationship ensures that the sensor can accurately measure the ambient temperature near the doors and windows to avoid interference from external factors. This setting also makes the collection of temperature data more accurate. Indeed, it can reflect indoor temperature changes in real time. Its operation process is that the temperature sensing unit 3 monitors the temperature inside the ventilation doors and windows in real time and transmits the data to the control system. The control system analyzes whether the current temperature is within the preset comfort range based on the real-time temperature data provided by the temperature sensing unit 3. If the temperature exceeds the comfort range, the control system will instruct the drive unit 7 to adjust the opening and closing status of the ventilation doors and windows to adjust the indoor temperature. For example, if the temperature is too high, the doors and windows will automatically open to increase ventilation; if the temperature is too low, the doors and windows will close to keep warm. The control system will continuously monitor temperature changes and dynamically adjust the status of doors and windows to ensure that the indoor environment is always in a comfortable state.

[0034] In a specific example, the temperature sensing unit 3 includes an output unit, which is provided on the temperature sensor and electrically connected to the driving unit 7 .

[0035] Specifically, the temperature sensing unit 3 includes an output unit, which is directly connected to the drive unit 7 through an electrical connection, ensuring that the temperature data can be transmitted to the drive unit 7 in real time. This electrical connection setting enables the output of the temperature sensor to directly drive the adjustment mechanism of the doors and windows to achieve intelligent control. The output unit is arranged on the temperature sensor and electrically connected to the drive unit 7, which means that the output unit is located inside the temperature sensor or close to the sensor to ensure accurate transmission of temperature data. The drive unit 7 adjusts the state of the doors and windows according to the electrical signal provided by the output unit. Such a positional relationship ensures accurate transmission and timely processing of temperature data.

[0036] In a specific example, a clamping hole is opened on the ventilation shaft 9, and the transmission shaft 10 is inserted into the clamping hole.

[0037] Specifically, the plug-in relationship between the clamping hole and the transmission shaft 10 ensures that the transmission shaft 10 can effectively transmit power to the ventilation shaft 9 during operation. This connection relationship ensures the reliability of power transmission and reduces the reduction in transmission efficiency caused by looseness or misalignment. The clamping hole is set on the ventilation shaft 9, and the positional relationship of the plug-in with the transmission shaft 10 ensures that a close fit can be achieved during installation. This design ensures that the relative position between the transmission shaft 10 and the ventilation shaft 9 is stable during operation, thereby improving the overall operational stability of the system. During installation, the transmission The shaft 10 is inserted into the clamping hole on the ventilation shaft 9. At this time, the design of the clamping hole ensures that the connection between the drive shaft 10 and the ventilation shaft 9 is firm and reliable. When the drive unit 7 is started, the drive shaft 10 starts to rotate. Since it is firmly connected to the ventilation shaft 9 through the clamping hole, the rotational power can be stably transmitted to the ventilation shaft 9. The rotation of the ventilation shaft 9 drives the ventilation push piece 8 through the crank-connecting rod structure 5, thereby realizing the opening and closing of doors and windows or other adjustment functions. When maintenance or adjustment is required, the maintenance personnel can easily disassemble the drive shaft 10 for operation without disassembling the entire system.

[0038] In a specific example, the ventilation shaft 9 includes a fixed block and a sliding rod 11, one end of the sliding rod 11 is arranged in the fixed block, and the other end is inserted into the guide groove, the fixed block is provided with a through hole for connecting with the transmission shaft 10, and the transmission shaft 10 is connected to the through hole of the fixed block.

[0039] Specifically, one end of the sliding rod 11 is arranged in the fixed block, and the other end is inserted into the guide groove. This connection method enables the sliding rod 11 to slide freely in the fixed block while maintaining the stability of the rotating shaft. The through hole on the fixed block is plugged into the transmission shaft 10, ensuring a reliable connection between the transmission shaft 10 and the rotating shaft, and realizing effective power transmission. One end of the sliding rod 11 is fixed in the fixed block, and the other end is inserted into the guide groove. This design ensures the precise positioning of the sliding rod 11 in the guide groove, maintains the stable rotation of the rotating shaft, and the plugging of the through hole on the fixed block and the transmission shaft 10 ensures a stable connection between the transmission shaft 10 and the rotating shaft, ensuring accurate power transmission and the rotation of the rotating shaft. Stable operation, the design of inserting the sliding rod 11 into the guide groove ensures the smooth rotation of the ventilation shaft 9 and reduces the vibration or deviation that may occur in the operation of the shaft. This stability improves the reliability and service life of the system. The through hole on the fixed block and the plug-in design of the drive shaft 10 provide a stable connection point, ensuring the accurate transmission of power. This design avoids any sliding or disengagement during the power transmission process, improves the efficiency and stability of the system, and combines the sliding rod 11 with the fixed block and connects the drive shaft 10 through the through hole, so that the overall structural design is simplified. This simplified design reduces the number and complexity of components, thereby reducing production and maintenance costs.

[0040] In a specific example, the ventilation door and window includes a fixing member 6 provided on the shutter 2 , one end of the fixing member 6 is fixedly connected to the shutter 2 , and the other end of the fixing member 6 is fixedly connected to the ventilation push piece 8 .

[0041] Specifically, one end of the fixing member 6 is fixed to the louver 2, ensuring that the louver 2 can be stably driven by the ventilation push piece 8 during operation. The other end of the fixing member 6 is fixedly connected to the ventilation push piece 8, ensuring that the movement of the ventilation push piece 8 can be directly transmitted to the louver 2, thereby achieving synchronous opening and closing. The two connection points of the fixing member 6 are respectively located on the louver 2 and the ventilation push piece 8. This arrangement ensures that the movement of the ventilation push piece 8 can be effectively transmitted to the louver 2, ensuring the coordinated work between them. During the assembly process, one end of the fixing member 6 is fixed to the louver 2, and the other end is connected to the ventilation push piece 8. After installation is completed, the fixing member 6 firmly connects the two components together. When the drive unit 7 is started, the ventilation push piece 8 begins to move. Since the fixing member 6 connects the ventilation push piece 8 and the louver 2 together, the movement of the push piece is directly transmitted to the louver 2. The movement of the ventilation push piece 8 causes the louver 2 to open and close synchronously, adjusting the ventilation state of the ventilation door and window. The fixing member 6 ensures the stability and efficiency of this process. When adjustment or maintenance is required, the design of the fixing member 6 makes it easier to disassemble and reconnect the components, thereby improving the maintenance efficiency of the system.

[0042] In a specific example, the fixing block includes a fixing rod plugged into the ventilation push piece 8 , and the fixing rod and the ventilation push piece 8 are clearance-fitted.

[0043] Specifically, the fixing rod is fixed to the fixing block, providing a support point for the fixing block. This connection point ensures a stable connection between the fixing block and the ventilation push piece 8. The fixing rod and the ventilation push piece 8 are connected by a clearance fit. This fit allows the components to have a certain degree of freedom in movement, thereby avoiding interference caused by factors such as thermal expansion and contraction. During the assembly process, the fixing rod is inserted into the fixing block to ensure its stable connection. The other end of the fixing rod is connected to the ventilation push piece 8 by a clearance fit. When the drive unit 7 is started, the ventilation push piece 8 begins to move. The clearance fit design between the fixing rod and the ventilation push piece 8 ensures that the push piece can smoothly transmit force during movement, while avoiding interference caused by factors such as thermal expansion and contraction. Since the fixing rod provides a stable connection, the movement of the ventilation push piece 8 can effectively drive the opening and closing of the blinds 2. The clearance fit design ensures stable operation of the system under different environmental conditions. When maintenance or adjustment is required, the design of the fixing rod makes it easier to disassemble and reconnect the components, thereby improving the maintenance efficiency of the system.

[0044] In a specific example, the ventilation door and window includes a fixed baffle 4 arranged inside the door and window. The fixed baffle 4 is provided with a fixing groove, and the driving unit 7 is interference-fitted with the fixing groove.

[0045] Specifically, the fixing groove opened on the fixed baffle 4 provides a precise fitting point for the fixing of the drive unit 7. The interference fit design enables the drive unit 7 to be tightly installed in the fixing groove, ensuring a stable connection between the components. The drive unit 7 is inserted into the fixing groove by interference fit, ensuring that the positioning of the drive unit 7 does not change during the operation of the door and window system. The fixed baffle 4 is installed on the blinds 2 and provides an installation base for the drive unit 7. The position of the fixing groove ensures that the drive unit 7 can be accurately installed in place. During the assembly process, the fixed baffle 4 is installed on the blinds 2. A fixing groove is provided on the baffle for receiving the drive unit 7, and the drive unit 7 is inserted into the fixing groove. Due to the interference fit design, the contact between the drive unit 7 and the fixing groove is close, thereby ensuring stable fixation. The drive unit 7 starts and operates the ventilation push piece 8, thereby driving the opening and closing of the blinds 2. Due to the interference fit between the drive unit 7 and the fixed baffle 4, the components remain stable during operation and will not loosen. Since the design of the fixed baffle 4 and the fixing groove effectively reduces the looseness between components, the maintenance requirements of the system are reduced, which improves the reliability of the system and the stability of long-term use.

[0046] In a specific example, the housing 1 is provided with a blind hole, and the shutter 2 is loosely fitted in the blind hole.

[0047] Specifically, the blind hole provides a channel for the movement of the shutter 2, and at the same time, the clearance fit design ensures the freedom of the shutter 2 during the movement. This design can effectively avoid the jamming phenomenon caused by movement restriction. The shell 1 provides structural support for the blind hole, ensuring a stable connection between the shutter 2 and the shell 1, while maintaining the sealing of the system. The blind hole is designed as a channel for the movement of the shutter 2, and its position and size match the movement range of the shutter 2, so as to ensure that the shutter 2 can pass through the blind hole smoothly during the opening and closing process. The clearance fit design allows the shutter 2 to move freely in the blind hole of the shell 1, while maintaining the overall sealing and protection function of the shell 1. During the installation process, the shutter 2 The shutter 2 is installed in the door and window system through the blind hole on the shell 1. The blind hole provides a channel for the shutter 2 to move. At the same time, the clearance fit design ensures an appropriate gap between the shutter 2 and the shell 1. The drive unit 7 is started, and the shutter 2 begins to move in the blind hole of the shell 1. Due to the clearance fit design, the shutter 2 can open and close smoothly without being restricted by the shell 1, thereby improving the operating efficiency of the door and window system. The clearance fit design maintains the sealing of the shell 1, effectively preventing external contaminants from entering the system, and protecting the safety and performance of internal components. The design of the shell 1 and the blind hole makes system maintenance easier, protects internal components, and reduces the impact of the external environment on the system.

[0048] In a specific example, rotating blocks 12 are provided at both ends of the shutter 2 , and the rotating blocks 12 are loosely matched with the blind holes.

[0049] Specifically, the rotating block 12 is connected to the blind hole by a clearance fit. This connection relationship allows the rotating block 12 to rotate in the blind hole, and the clearance fit ensures the free movement of the rotating block 12, avoiding the jamming problem caused by friction or restriction. The rotating block 12 is fixed at both ends of the shutter 2 as a rotating support component to ensure that the shutter 2 can rotate stably in the shell 1. The rotating block 12 is set at both ends of the shutter 2 to ensure that the shutter 2 can rotate smoothly inside the shell 1. The position and size design of the blind hole match the motion range of the rotating block 12 to support its free rotation. The gap design between the rotating block 12 and the blind hole enables the shutter 2 to rotate smoothly during the opening and closing process, while reducing friction and wear. During the operation of the door and window system, the rotating block 12 is fixed at both ends of the shutter 2 and is connected to the blind hole on the shell 1 by a clearance fit. This connection ensures the stable installation and smooth movement of the shutter 2. When the drive unit 7 is started, the shutter 2 rotates in the shell 1 with the support of the rotating block 12. Due to the clearance fit design of the rotating block 12 and the blind hole, the shutter 2 can be opened and closed smoothly and is not affected by structural limitations. During the operation of the door and window system, the gap design between the rotating block 12 and the blind hole of the shutter 2 effectively reduces friction and wear, thereby ensuring the smooth movement of the shutter 2 and the efficient operation of the system. Since the clearance fit between the rotating block 12 and the blind hole reduces friction and wear, the maintenance requirements of the system are relatively low, thereby extending the service life of the system.

[0050] The above is only an implementation method of the present application. It should be pointed out that for ordinary technicians in this field, improvements can be made without departing from the creative concept of the present application, but these all fall within the scope of protection of the present application.

Claims

1. A ventilation door and window for a building, comprising a crank-connecting rod structure and a drive unit, characterized in that: The crank-connecting rod structure includes a ventilation push piece and a ventilation shaft arranged in parallel, and the ventilation door and window include a shutter arranged therein, one end of the ventilation push piece is arranged on the shutter, and the other end is provided with a guide groove which is slidably connected to the ventilation shaft, and the driving unit includes a transmission shaft which is plugged into the crank-connecting rod structure, one end of the ventilation shaft is arranged in the guide groove, and the other end is fixedly connected to the transmission shaft.

2. The building ventilation door and window according to claim 1, characterized in that: The ventilation door and window include a temperature sensing unit, and the temperature sensing unit is arranged inside the ventilation door and window.

3. The building ventilation door and window according to claim 2, characterized in that: The temperature sensing unit includes an output unit, which is provided on the temperature sensor and electrically connected to the driving unit.

4. The building ventilation door and window according to claim 1, characterized in that: A clamping hole is provided on the ventilation shaft, and the transmission shaft is plugged into the clamping hole.

5. The building ventilation door and window according to claim 1, characterized in that: The ventilation shaft includes a fixed block and a sliding rod, one end of the sliding rod is arranged in the fixed block, and the other end is inserted into the guide groove. The fixed block is provided with a through hole connected to the transmission shaft, and the transmission shaft is connected to the through hole of the fixed block.

6. The building ventilation door and window according to claim 1, characterized in that: The ventilation door and window includes a fixing piece provided on the shutter, one end of the fixing piece is fixedly connected to the shutter, and the other end of the fixing piece is fixedly connected to the ventilation push piece.

7. The building ventilation door and window according to claim 6, characterized in that: The fixing block includes a fixing rod plugged into the ventilation push piece, and the fixing rod is clearance-matched with the ventilation push piece.

8. The building ventilation door and window according to claim 1, characterized in that: The ventilation door and window includes a fixed baffle arranged inside the door and window. The fixed baffle is provided with a fixing groove. The driving unit is interference-fitted with the fixing groove.

9. The building ventilation door and window according to claim 1, characterized in that: The ventilation door and window comprises a shell, the shell is provided with a blind hole, and the shutter is in clearance fit with the blind hole.

10. The building ventilation door and window according to claim 1, characterized in that: Rotating blocks are provided at both ends of the shutter, and the rotating blocks are clearance-matched with the blind holes.

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