Hand rocker type curtain wall smoke exhaust window opener
The mechanical transmission system of the hand-cranked curtain wall smoke exhaust window opener solves the problem of inconvenient operation of smoke exhaust windows in high-rise buildings, enabling rapid opening and improving fire safety performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR FOURTH ENG DIV CORP LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-05-19
AI Technical Summary
Traditional curtain wall smoke exhaust windows are inconvenient to operate in high-rise buildings, are difficult to open quickly, and affect smoke exhaust efficiency and fire safety performance.
A hand-cranked curtain wall smoke exhaust window opener was designed. Through a mechanical transmission system consisting of a support rod, a hand crank, a transmission rod, and a telescopic pull rod, the smoke exhaust window can be opened and closed quickly. It is suitable for high-rise buildings and is simple and labor-saving to operate.
It improves the opening speed and ease of operation of smoke exhaust windows, enhances fire safety performance, and is suitable for rapid opening of smoke exhaust windows in emergency situations in high-rise buildings.
Smart Images

Figure CN224260133U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of smoke exhaust window technology, specifically to a hand-cranked curtain wall smoke exhaust window opener. Background Technology
[0002] Traditional smoke exhaust windows in curtain walls are mostly opened manually. However, due to the structural design and installation location of the curtain wall, operators often have difficulty directly accessing the opening device of the smoke exhaust window. This is especially true in some high-rise buildings where the smoke exhaust window is located high up and in a deep recess. Manual opening requires complex tools and equipment, which is not only inconvenient to operate but also time-consuming and labor-intensive. In emergency situations, it cannot be opened quickly, which seriously affects the smoke exhaust efficiency and the safety performance of the building.
[0003] Therefore, a hand-cranked curtain wall smoke exhaust window opener is needed to solve the above problems. Utility Model Content
[0004] To overcome the shortcomings of existing technologies, this utility model provides a hand-cranked curtain wall smoke exhaust window opener, which can realize the rapid opening and closing of the curtain wall smoke exhaust window. It is simple and labor-saving to operate and is suitable for smoke exhaust windows of high-rise building curtain walls. It can quickly open the smoke exhaust window in an emergency and improve fire safety performance.
[0005] The technical solution adopted by this utility model to solve its technical problem is:
[0006] A hand-cranked curtain wall smoke exhaust window opener includes a support rod, a hand crank, a transmission rod, and a telescopic rod. The support rod is fixedly installed on the inside of the smoke exhaust window. One end of the transmission rod is connected to the support rod, and one end of the telescopic rod is fixedly connected to the transmission rod. The other end of the telescopic rod is connected to the smoke exhaust window. The hand crank is drivenly connected to the other end of the transmission rod. When the hand crank is cranked in the forward or reverse direction, it drives the transmission rod and the telescopic rod to rotate, thereby opening or closing the smoke exhaust window.
[0007] As a further improvement to the above technical solution, the hand crank is arranged perpendicularly to the transmission rod, and a cornering device is provided at the connection between the hand crank and the transmission rod, wherein the cornering device is configured as a 90° turning device.
[0008] As a further improvement to the above technical solution, the support rod is provided with a plurality of mounting components, the mounting components including a mounting plate and a connecting cylinder, one end of the mounting plate being connected to the support rod, the other end of the mounting plate being connected to the connecting cylinder, and the connecting cylinder being connected to the transmission rod.
[0009] As a further improvement to the above technical solution, the telescopic rod includes a spring, a first connecting member, and a second connecting member. The first connecting member and the second connecting member are respectively connected to the upper end and the lower end of the spring. The first connecting member is connected to the transmission rod, and the second connecting member is connected to the smoke exhaust window.
[0010] As a further improvement to the above technical solution, the spring is configured as a stainless steel compression spring.
[0011] As a further improvement to the above technical solution, the first connecting member includes a fixed cylinder and a connecting rod. The fixed cylinder is fixedly sleeved on the transmission rod, one end of the connecting rod is vertically connected to the middle of the fixed cylinder, and the other end of the connecting rod is fixedly connected to the spring.
[0012] As a further improvement to the above technical solution, the second connecting member is configured as a hinge member, which is fixedly connected to the smoke exhaust window.
[0013] As a further improvement to the above technical solution, the cranking end of the hand crank is configured as a bent structure.
[0014] The beneficial effects of this utility model are:
[0015] This invention features a support rod installed inside the smoke exhaust window. A hand crank is connected to a transmission rod and fixed to the lower side of the support rod. The transmission rod is connected to a telescopic rod. When the hand crank is cranked in either the forward or reverse direction, the transmission rod rotates, causing the telescopic rod to extend or retract, thereby opening or closing the smoke exhaust window. Through a clever mechanical transmission design, the rotational motion of the crank is converted into the opening and closing action of the curtain wall window. The operation is simple and labor-saving, and it is suitable for smoke exhaust windows in high-rise building curtain walls. It can quickly open the smoke exhaust window in an emergency, improving fire safety performance. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0017] Figure 1 This is a schematic diagram of the structure of the smoke exhaust window opener of this utility model when the window is not open;
[0018] Figure 2 This is a schematic diagram of the structure of the smoke exhaust window opener of this utility model when the window is opened.
[0019] Reference numerals: 1. Support rod; 2. Hand crank; 3. Transmission rod; 4. Telescopic rod; 41. Spring; 42. First connecting piece; 421. Fixing cylinder; 422. Connecting rod; 43. Second connecting piece; 5. Smoke vent; 6. Corner; 7. Mounting piece; 71. Mounting plate; 72. Connecting cylinder. Detailed Implementation
[0020] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / connections involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. For example, fixed connections / fixed installations can use screw connections, bolt connections, pin connections, key connections, adhesive connections, mortise and tenon connections, welding, riveting, etc., as needed. For detachable connections, screw connections, bolt connections, threaded connections, snap-fit connections, mortise and tenon connections, Velcro connections, etc., can be used as needed. The various technical features in this utility model can be combined interactively without contradicting each other.
[0021] Reference Figures 1 to 2 A hand-cranked curtain wall smoke exhaust window opener includes a support rod 1, a hand crank 2, a transmission rod 3, and a telescopic rod 4. The support rod 1 is fixed to the wall or frame inside the smoke exhaust window 5 by bolts or welding, ensuring stability under various working conditions and providing a reliable installation base for other components. One end of the transmission rod 3 is connected to the support rod 1, and one end of the telescopic rod 4 is fixedly connected to the transmission rod 3. The other end of the telescopic rod 4 is connected to the smoke exhaust window 5. The hand crank 2 is connected to the other end of the transmission rod 3. When it is necessary to open or close the smoke exhaust window 5, the hand crank 2 can be cranked in the forward or reverse direction. During the rotation of the hand crank 2, the rotational force generated will be transmitted to the transmission rod 3 through the transmission connection. Since the transmission rod 3 is fixedly connected to the telescopic rod 4, the rotation of the transmission rod 3 will drive the telescopic rod 4 to rotate together. The other end of the telescopic rod 4 is connected to the smoke exhaust window 5. Under the action of the rotation of the telescopic rod 4, the smoke exhaust window 5 will be opened or closed. The operation is simple and labor-saving.
[0022] It should be noted that the extension and retraction direction of the telescopic rod 4 is consistent with the opening and closing direction of the smoke exhaust window 5. This design enables linear push-pull action, ensuring the smoothness and accuracy of the opening and closing process of the smoke exhaust window 5, and effectively avoiding malfunctions that may be caused by uneven action.
[0023] Reference Figure 2In this embodiment of the invention, the hand crank 2 is perpendicular to the transmission rod 3, and a corner mechanism 6 is provided at the connection between the hand crank 2 and the transmission rod 3. The corner mechanism 6 is a 90° steering device, which can be a worm gear mechanism or a bevel gear set, to ensure efficient conversion between the vertical rotation of the hand crank 2 and the horizontal rotation of the transmission rod 3. This allows the operator to operate from a more convenient position and angle, while ensuring the normal operation of the window opener's transmission system. This ingenious design not only improves the practicality of the window opener but also enhances its adaptability in different installation scenarios.
[0024] Reference Figure 2 In this embodiment of the utility model, the support rod 1 is provided with a plurality of mounting parts 7. The mounting parts 7 include a mounting plate 71 and a connecting cylinder 72. One end of the mounting plate 71 is connected to the support rod 1, and the other end of the mounting plate 71 is connected to the connecting cylinder 72. The connecting cylinder 72 is connected to the transmission rod 3, which ensures the accurate positioning of the transmission rod 3 during operation and prevents it from shaking or deviating. The support rod 1 and the mounting parts 7 work together to enable the entire window opener to withstand the large force generated by the smoke exhaust window 5 during opening and closing, which significantly improves the stability of the overall structure of the window opener and reduces the probability of failure caused by structural instability.
[0025] Reference Figure 2 In an embodiment of this utility model, the telescopic rod 4 includes a spring 41, a first connecting member 42, and a second connecting member 43. The first connecting member 42 and the second connecting member 43 are respectively connected to the upper and lower ends of the spring 41. The first connecting member 42 is disposed between the two mounting members 7 and is connected to the transmission rod 3. The second connecting member 43 is hinged to the smoke exhaust window 5. This can accurately convert the rotational motion of the transmission rod 3 into the linear motion of the telescopic rod 4, reduce energy loss and motion deviation in the power transmission process, improve the overall transmission efficiency of the window opener, and realize fast and accurate opening and closing control of the smoke exhaust window.
[0026] Specifically, the spring 41 is a stainless steel compression spring, which has high strength and corrosion resistance, and can provide sufficient pushing and pulling force to overcome the weight of the smoke exhaust window 5 and wind pressure resistance, ensuring that the smoke exhaust window can be opened smoothly in an emergency. At the same time, the stainless steel material also extends the service life of the spring 41 and reduces the maintenance cost of the window opener.
[0027] Specifically, the first connecting member 42 includes a fixed cylinder 421 and a connecting rod 422. The fixed cylinder 421 is disposed between the two mounting members 7. The transmission rod 3 is inserted into the connecting cylinder 71 and the fixed cylinder 421, so that the transmission rod 3 can rotate normally. A snap-fit fixing structure is provided between the transmission rod 2 and the fixed cylinder 421 to realize a stable connection between the transmission rod 3 and the telescopic pull rod 4, so as to ensure that the transmission rod 3 can drive the telescopic pull rod 4 to rotate, so as to realize the normal opening and closing of the smoke exhaust window 5. One end of the connecting rod 422 is vertically connected to the middle of the fixed cylinder 421, and the other end of the connecting rod 422 is fixedly connected to the spring 41, so that the driving direction of the telescopic pull rod 4 is consistent with the opening and closing of the smoke exhaust window 5, ensuring the normal operation of the window opener.
[0028] Furthermore, since the smoke exhaust window 5 will change angle during opening and closing, the second connecting member 43 is set as a hinge member. The hinge member is fixedly connected to the smoke exhaust window 5 to adapt to the angle change of the smoke exhaust window 5 when it is opened and closed, ensuring that the connection between the telescopic rod 4 and the smoke exhaust window 5 will not affect the normal operation of the window opener due to angle issues.
[0029] Reference Figure 2 In this embodiment of the invention, the cranking end of the hand crank 2 is configured with a bent structure. This bent structure design fully considers the ease of use and comfort of the operator. During actual operation, the bent structure allows the operator's hand to crank the hand crank in a more natural and comfortable posture, reducing fatigue during operation. At the same time, the bent structure also increases the operating space of the hand crank 2 to a certain extent, avoiding the inconvenience caused by space limitations, and further improving the user experience of the window opener.
[0030] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.
Claims
1. A hand-cranked curtain wall smoke exhaust window opener, characterized in that: The device includes a support rod, a hand crank, a transmission rod, and a telescopic rod. The support rod is fixedly installed inside the smoke exhaust window. One end of the transmission rod is connected to the support rod, and one end of the telescopic rod is fixedly connected to the transmission rod. The other end of the telescopic rod is connected to the smoke exhaust window. The hand crank is drivenly connected to the other end of the transmission rod. When the hand crank is cranked in either the forward or reverse direction, it drives the transmission rod and the telescopic rod to rotate, thereby opening or closing the smoke exhaust window.
2. The hand-cranked curtain wall smoke exhaust window opener according to claim 1, characterized in that: The hand crank is perpendicular to the transmission rod, and a cornering device is provided at the connection between the hand crank and the transmission rod. The cornering device is a 90° steering device.
3. The hand-cranked curtain wall smoke exhaust window opener according to claim 1, characterized in that: The support rod is provided with multiple mounting components, each including a mounting plate and a connecting cylinder. One end of the mounting plate is connected to the support rod, and the other end of the mounting plate is connected to the connecting cylinder. The connecting cylinder is connected to the transmission rod.
4. A hand-cranked curtain wall smoke exhaust window opener according to claim 3, characterized in that: The telescopic rod includes a spring, a first connecting member, and a second connecting member. The first connecting member and the second connecting member are respectively connected to the upper end and the lower end of the spring. The first connecting member is connected to the transmission rod, and the second connecting member is connected to the smoke exhaust window.
5. A hand-cranked curtain wall smoke exhaust window opener according to claim 4, characterized in that: The spring is a stainless steel compression spring.
6. A hand-cranked curtain wall smoke exhaust window opener according to claim 4, characterized in that: The first connecting member includes a fixed cylinder and a connecting rod. The fixed cylinder is fixedly sleeved on the transmission rod. One end of the connecting rod is vertically connected to the middle of the fixed cylinder, and the other end of the connecting rod is fixedly connected to the spring.
7. A hand-cranked curtain wall smoke exhaust window opener according to claim 4, characterized in that: The second connector is configured as a hinge, and the hinge is fixedly connected to the smoke exhaust window.
8. A hand-cranked curtain wall smoke exhaust window opener according to claim 1, characterized in that: The cranking end of the hand crank is configured with a bent structure.