Novel shutter air port
By improving the installation structure of louvers, using an outer frame, middle frame, and spring locking mechanism, combined with a traction fixer, the louvers can be quickly disassembled and installed, solving the problems of inconvenient installation and damage to the building during disassembly, and improving safety and convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUIZHOU TENGXIANG RUILI HVAC TECH CO LTD
- Filing Date
- 2025-04-22
- Publication Date
- 2026-04-28
AI Technical Summary
The existing fixed louvers are inconvenient to install and remove, and the removal process can easily damage the building structure. Cleaning and maintenance also pose safety hazards.
It adopts an outer frame, middle frame and louver frame structure. The middle frame is equipped with a spring locking mechanism, which, together with the slot on the louver frame, enables quick disassembly and installation of the louver frame through a traction mechanism. The combination of traction fixation device and spring simplifies the operation process.
It improves the efficiency of blind installation and removal, reduces maintenance difficulty and safety risks, and ensures stability and comfort during use.
Smart Images

Figure CN224173979U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building ventilation technology, specifically to a novel louvered air vent. Background Technology
[0002] In commercial or residential buildings, fixed louvers are typically installed on exterior walls or high windows to enhance natural ventilation and lighting while blocking rain and strong sunlight, maintaining an aesthetically pleasing appearance, and improving privacy. These louvers are also commonly installed in equipment rooms and ventilation shafts. However, installing fixed louvers is relatively troublesome. Fixing equipment is required to secure the louvers to the window. When fixed louvers are damaged and require repair, disassembly is very difficult and can easily damage the building's windows. Over time, fixed louvers inevitably accumulate dust and other contaminants, making cleaning and maintenance very difficult. Cleaning the exterior requires working at heights, posing safety hazards.
[0003] Therefore, in order to solve the above problems and overcome the shortcomings of existing technologies, there is an urgent need for an improved and optimized new type of louvered air vent that can improve the convenience of installation and disassembly, avoid damage to the building structure during disassembly, and enhance the convenience and safety of maintenance. Utility Model Content
[0004] The present invention aims to provide a new type of louvered air vent, which solves the problems of inconvenient disassembly and maintenance and easy damage to buildings caused by disassembly by improving the installation and disassembly method.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A novel louvered air vent includes an outer frame, a middle frame, and a louver frame. The outer frame and the middle frame are fitted and fixed together. The louver frame is detachably connected to the middle frame. A spring locking mechanism is provided in the middle of the inner side of the middle frame. The spring locking mechanism includes a pressing block and a spring. The two ends of the spring are respectively connected to the pressing block and the middle frame. A traction mechanism is provided in the middle of the short side on one side of the outer frame. The traction mechanism includes a traction rope and a traction fixer. The traction rope is connected to the pressing block and the traction fixer. The traction fixer is rotatably connected to the outer frame. A groove that mates with the pressing block is provided on the outer side of the louver frame. A handle is provided on the front side of the louver frame.
[0007] The principles and advantages of this scheme are:
[0008] Existing fixed venetian blinds are essentially stationary after installation, making them difficult to remove for cleaning and maintenance. To address these shortcomings, the installation and disassembly structure of existing fixed venetian blinds has been modified. An outer frame, a middle frame, and a venetian blind frame have been added. A spring-loaded locking mechanism is incorporated into the middle frame, working in conjunction with slots on the venetian blind frame to secure it. This ensures greater stability during installation and disassembly, preventing loosening due to vibration and impact. This significantly reduces maintenance difficulty and operational risks. It guarantees the practicality and durability of the venetian air vents while also improving user safety and comfort.
[0009] A traction mechanism is installed on the outer frame. The rotation of the traction fixer drives the clamping block connected to the traction rope. At this time, the spring is compressed, accumulating potential energy, causing the clamping block to disengage from the slot. When the traction fixer is released, the spring releases its potential energy, lifting the clamping block and locking it back into the slot. Operators can use the handle to quickly disassemble and install the louver frame without specialized tools, achieving high efficiency in installation and maintenance. The louver frame can be quickly fixed and disassembled in just two simple steps, facilitating maintenance, replacement, and cleaning while preventing damage to the building.
[0010] This solution addresses the problems of inconvenient disassembly and maintenance of existing fixed louvers, and the risk of building damage during disassembly, thereby improving disassembly and installation efficiency as well as the convenience and safety of maintenance.
[0011] Furthermore, the traction fixation device includes a rotating shaft, a knob, and a retainer. The end of the rotating shaft away from the knob is provided with a ratchet and a retaining block in sequence. The outer frame is provided with a pawl that cooperates with the ratchet. The retainer is slidably connected to the rotating shaft. The shape and size of the retaining block are consistent with the inside of the retainer. The outer circumference of the retainer is grooved.
[0012] In the above scheme, the traction device cannot be released directly after rotation in order to keep the clamping block in the retracted state. To further improve the ease of operation and comfort, a ratchet and a locking block are arranged in sequence at the end of the rotating shaft away from the knob. When the traction device is pulled outward, the ratchet enters the working area and starts working in conjunction with the pawl. At this time, the locking block is inserted into the sleeve. Rotating the knob rotates the sleeve and wraps the traction rope around the groove on the circumference of the sleeve. The traction rope tightens and the clamping block is in the retracted state. When the knob is released, the traction device can still keep the clamping block in the retracted state under the action of the ratchet and pawl.
[0013] Furthermore, the traction mechanism also includes a traction groove and a traction wheel. The traction groove is located in the middle of the inner side of the outer frame, the traction wheel is rotatably connected in the traction groove, the traction rope is slidably connected to the traction wheel, and the end of the traction rope away from the clamping block is connected to the ferrule.
[0014] To facilitate quick removal and removal of the venetian blind frame, a traction wheel installed in the traction groove is incorporated. The traction rope and wheel, in conjunction with the traction retainer, allow for quick and effortless traction of the clamping block. To remove the blinds, pull the traction retainer outwards and rotate it clockwise, causing the traction rope to pull the clamping block away from the groove, allowing for easy removal of the venetian blind frame. Similarly, during installation, pull the traction retainer outwards and rotate it clockwise, then place the venetian blind frame in place and press the traction retainer. Under the force of the spring, the clamping block automatically engages in the corresponding groove, enabling simple installation of the venetian blind frame. The entire process requires no complex tools or advanced technical skills, making venetian blind maintenance effortless while ensuring long-term stability and reliability.
[0015] Furthermore, apart from the area of the spring locking mechanism, the cross-section of the other areas of the middle frame is U-shaped.
[0016] To facilitate installation, a U-shaped ring structure is adopted, which reduces the overall weight of the middle frame, making transportation and installation easier and reducing operational intensity.
[0017] Furthermore, each clamping block is equipped with an elastic sealing strip.
[0018] In certain air-conditioned areas, the louver frame may vibrate when the airflow is high, causing noise. The elastic sealing strip can effectively reduce air leakage and noise caused by vibration, thereby improving the overall sealing performance and noise reduction. This design allows the louvers to remain stable even under high airflow conditions, avoiding noise problems caused by vibration and ensuring long-term reliability and comfort.
[0019] Furthermore, the handle is equipped with a limiting component, which is integrally connected to the handle and the limiting component, and the limiting component is detachably connected to the louver frame.
[0020] To facilitate quick installation and positioning, a limiting device is included. During installation, align the groove on one side of the louver frame with the vertical pressure block of the middle frame, grasp the handle, and press to install the louver frame into the middle frame. At this point, the limiting device secures the louver frame to the middle frame, providing quick positioning and limiting. Then, press the traction fastener to complete the installation and fixation of the louver frame. The limiting device design not only improves the ease of installation but also ensures the stability of the louver during use. Attached Figure Description
[0021] Figure 1 This is an exploded view of the overall structure of an embodiment of the present utility model.
[0022] Figure 2 This is a schematic diagram showing the overall structure of this utility model after installation.
[0023] Figure 3This is a cross-sectional view of the middle frame of an embodiment of the present utility model.
[0024] Figure 4 This is a cross-sectional view of the outer frame of an embodiment of the present utility model.
[0025] Figure 5 This is a schematic diagram of the traction fixation device according to an embodiment of the present utility model.
[0026] Figure 6 This is a schematic diagram of the traction fixation device being pulled out and rotated according to an embodiment of the present invention.
[0027] Figure 7 This is a schematic diagram of the ratchet and pawl working in accordance with an embodiment of the present invention. Detailed Implementation
[0028] The following detailed description illustrates the specific implementation method:
[0029] The reference numerals in the accompanying drawings include: outer frame 1, middle frame 2, louver frame 3, traction mechanism 4, traction rope 41, traction wheel 42, traction groove 43, traction fixing device 44, ratchet 441, locking block 442, sleeve 443, knob 444, spring locking mechanism 21, pressing block 211, spring 212, handle 31, limiting member 32, and slot 33.
[0030] The basic implementation examples are as follows: Figure 1-7 As shown:
[0031] As attached Figure 1 As shown, a novel louvered air vent includes an outer frame 1, a middle frame 2, and a louver frame 3. The outer frame 1 is fitted and fixed to the middle frame 2, and the louver frame 3 is detachably connected inside the middle frame 2. To fix the louvers and enhance their stability, as shown in the attached diagram... Figure 3 As shown, spring locking mechanisms 21 are provided in the middle of the four inner sides of the middle frame 2. The spring locking mechanism 21 includes a pressing block 211 and a spring 212. The two ends of the spring 212 are respectively connected to the pressing block 211 and the middle frame 2.
[0032] As attached Figure 1 As shown, the outer surface of the louver frame 3 is provided with a groove 33 that mates with the clamping block 211. A handle 31 is provided on the front of the short side of the louver frame 3, and the handle 31 has a limiting member 32. The handle 31 and the limiting member 32 are integrally connected, and the limiting member 32 is bolted to the louver frame 3. Under the action of the spring 212, the clamping block 211 is pressed into the groove 33, applying clamping force to the louver frame 3 from four directions (up, down, left, and right), firmly fixing the louver frame 3 in the middle frame 2 and preventing loosening due to vibration and impact.
[0033] To achieve quick removal and disassembly of the louver frame 3, such as Figure 1 , Figure 4As shown, a traction mechanism 4 is provided on the inner side of the outer frame 1. The traction mechanism 4 includes a traction groove 43, a traction wheel 42, three traction ropes 41, and a traction fixing device 44. The traction groove 43 is located on the inner side of the outer frame 1. The traction wheel 42 is rotatably connected in the traction groove 43. One end of each of the three traction ropes 41 is connected to the clamping blocks 211 on the left, right, and lower sides, respectively. The other ends of each of the three traction ropes 41 are fixedly connected to the traction fixing device 44. Each traction rope 41 is slidably connected to each traction wheel 42 for guidance. The structure of the traction fixing device 44 is shown in the attached figure. Figure 5 As shown, the rotating shaft is rotatably connected to the outer frame 1. To facilitate observation of the structure of the traction fixation device 44, an attached... Figure 5 Only a portion of the outer frame 1 is shown in the diagram, including a ratchet 441, a locking block 442, a retaining sleeve 443, and a knob 444 mounted on the rotating shaft. The ratchet 441 and locking block 442 are fixedly mounted on the left side of the rotating shaft, the retaining sleeve 443 is slidably connected to the middle of the rotating shaft, and the knob 444 is fixedly connected to the right end of the rotating shaft. The shape and size of the locking block 442 are consistent with the inside of the retaining sleeve 443, and the outer circumference of the retaining sleeve 443 is grooved. (See attached diagram.) Figure 7 As shown, the outer frame 1 is provided with a pawl 445 that cooperates with the ratchet 441. Pulling the traction fixing device 44 outward causes the ratchet 441 and pawl 445 to enter the cooperating working state, which can fix the rotation state of the traction fixing device 44, making it convenient to release and install and fix the louver frame 3. By using the traction rope 41 and traction wheel 42 in conjunction with the traction fixing device 44, the clamping block 211 can be pulled quickly and effortlessly. When disassembly is required, pull the traction fixing device 44 outward and rotate the knob 444 clockwise to make the traction rope 41 pull the clamping block 211 away from the slot 33. At this time, the louver frame 3 can be disassembled quickly and conveniently. After cleaning and maintaining the louver frame 3, align the slot 33 on the upper part of the louver frame 3 with the clamping block on the upper part of the middle frame, push to install the louver frame 3 in the middle frame, and press the knob 444. Under the action of the spring 212, the clamping blocks 211 on the left and right sides and the bottom will automatically embed into the corresponding slots 33, thereby realizing the simple installation of the louver frame 3.
[0034] In certain air-conditioned areas, the louver frame 3 may vibrate when the airflow is high. Therefore, elastic sealing strips are provided on the clamping blocks 211. This design ensures that the louvers remain stable even under high airflow conditions, avoiding noise problems caused by vibration and ensuring long-term reliability and comfort. To facilitate installation and save on material and labor costs, the cross-section of the middle frame 2, excluding the area of the spring locking mechanism 21, is U-shaped. This reduces the overall weight of the middle frame 2, facilitating transportation and installation and reducing operational intensity.
[0035] The specific implementation method is as follows:
[0036] The outer frame 1 and middle frame 2 are fixed in the factory. After being transported to the installation site, the outer frame 1 is installed and fixed to the window, as shown in the attached diagram. Figure 7 As shown on the left, grasp the knob 444 and pull it outwards to engage the locking block 442 into the locking sleeve 443. The ratchet 441 and pawl 445 will then be in position and engaged. Turn the knob 444 counterclockwise to retract the left and right sides and the lower clamping blocks 211, driven by the traction rope 41. Grasp the handle 31 of the louver frame 3, align the groove on the upper part of the louver frame 3 with the clamping block 211 on the upper part of the middle frame 2, and press the louver frame 3 to install it into the middle frame 2. The limiting piece 32 on the handle 31 should be tightly against the front of the middle frame 2. (See attached image) Figure 7 As shown on the right, pressing knob 444 causes block 442 to disengage from sleeve 443, ratchet 441 to disengage from pawl 445, releasing its limiting effect. Sleeve 443 then rotates freely. Under the action of spring 212, clamping block 211 quickly resets and engages in slot 33, completing the overall installation operation. To remove and clean the louver frame 3, simply pull and turn knob 444 to release the spring locking mechanism 21 from fixing the louver frame 3, then grasp handle 31 to remove it for cleaning.
[0037] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. A novel louvered air vent, characterized in that: The device includes an outer frame, a middle frame, and a louver frame. The outer frame is fitted and fixed to the middle frame. The louver frame is detachably connected to the middle frame. The middle of the inner side of the middle frame is equipped with a spring locking mechanism, which includes a pressing block and a spring. The two ends of the spring are respectively connected to the pressing block and the middle frame. The middle of the short side of one side of the outer frame is equipped with a traction mechanism, which includes a traction rope and a traction fixation device. The traction rope is connected to the pressing block and the traction fixation device, and the traction fixation device is rotatably connected to the outer frame. The outer side of the louver frame is equipped with a groove that mates with the pressing block, and the front side of the louver frame is equipped with a handle.
2. The novel louvered air vent according to claim 1, characterized in that: The traction fixation device includes a rotating shaft, a knob, and a retainer. The end of the rotating shaft away from the knob is provided with a ratchet and a retaining block in sequence. The outer frame is provided with a pawl that cooperates with the ratchet. The retainer is slidably connected to the rotating shaft. The shape and size of the retaining block are consistent with the inside of the retainer. The outer circumference of the retainer is grooved.
3. A novel louvered air vent according to claim 2, characterized in that: The traction mechanism also includes a traction groove and a traction wheel. The traction groove is located in the middle of the inner side of the outer frame. The traction wheel is rotatably connected in the traction groove. The traction rope is slidably connected to the traction wheel. The end of the traction rope away from the clamping block is connected to the ferrule.
4. A novel louvered air vent according to claim 3, characterized in that: Except for the area of the spring locking mechanism, the cross-section of the other areas of the middle frame is U-shaped.
5. A novel louvered air vent according to claim 4, characterized in that: Each of the clamping blocks is equipped with an elastic sealing strip.
6. A novel louvered air vent according to claim 5, characterized in that: The handle is equipped with a limiting component, and the handle and the limiting component are integrally connected. The limiting component is detachably connected to the louver frame.