An in-line manual ventilation device

Abstract

This utility model discloses an embedded manual ventilation device, including a frame and several louvers evenly arranged laterally within the frame. Each louver is connected to an adjustment mechanism, which has limit blocks to control the opening and closing angles of all louvers. The louvers are also connected to a synchronization mechanism to achieve synchronized opening and closing of all louvers. It is suitable for ventilation needs in military, medical, and emergency vehicle-mounted shelters, and exhibits excellent waterproof performance, especially in rainy, humid, or dusty environments.

Description

Technical Field

[0001] This utility model belongs to the field of fresh air system technology, specifically relating to an embedded manual ventilation device. Background Technology

[0002] Vehicle-mounted modular shelters are widely used in military, medical, and emergency response fields. The ventilation performance of their internal environment directly affects personnel comfort and equipment operational stability. Traditional ventilation systems for vehicle-mounted modular shelters mostly use fixed louvers or electric ventilation systems, but these technologies have the following problems in practical applications:

[0003] 1. Traditional vehicle-mounted cabin ventilation systems are mostly fixed and cannot flexibly adjust the ventilation volume. In addition, the waterproof sealing design of the system is relatively simple, which can easily lead to moisture inside the cabin, affecting the normal operation of the equipment and the comfort of the personnel.

[0004] 2. Some ventilation devices employ complex mechanical structures or electric control systems, which not only increases manufacturing costs but also requires constant maintenance.

[0005] 3. Electric ventilation systems require a stable power supply and cannot operate when there is a power outage or power failure, which limits their application in the field or emergency scenarios.

[0006] Chinese invention patent CN116624080A discloses a louver with a linkage rod and a transmission rod to realize the opening and closing of the louvers; Chinese utility model patent CN209942685U discloses a hollow louver, which discloses that when the roller blind lifting block is manually moved downward, the first magnetic linkage slider and the magnetic lifting slider are driven to slide downward synchronously with the roller blind lifting block. Utility Model Content

[0007] In order to solve the above problems, this utility model aims to provide an embedded manual ventilation device.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: an embedded manual ventilation device, comprising a frame, a plurality of louvers evenly arranged laterally within the frame, wherein the louvers are connected to an adjustment mechanism, the adjustment mechanism being provided with limit blocks to control the opening and closing angles of all louvers; the louvers are also connected to a synchronization mechanism to realize the synchronous opening and closing of all louvers.

[0009] Furthermore, the louver includes several blades and sealing strips. The blades are installed in an overlapping manner from top to bottom, with the upper edge of each blade overlapping the inner side of the previous blade. Two parallel sealing strips are embedded in the overlapping part of each blade, and the sealing strips are solid circular in shape.

[0010] Furthermore, the adjustment mechanism includes a worm knob, one end of which is meshed with a worm wheel and a fixing block is fixed at the end of the worm knob. The worm wheel is also meshed with a rack, and upper limit blocks and lower limit blocks are provided at both ends of the rack.

[0011] Furthermore, the adjustment mechanism also includes several pairs of meshing driven gears and driving gears, with one end of each blade fixedly connected to the driven gear, and the driving gear meshing with the rack.

[0012] Furthermore, the synchronous linkage mechanism includes a drive rod, an active linkage, and a driven linkage connected in sequence. The other end of the drive rod is connected to the transmission shaft, one end of the driven linkage is connected to the frame, and the active linkage and the driven linkage are connected to the blade.

[0013] Furthermore, the worm gear is fixedly connected to a drive shaft in the transverse length direction of a through-device of the synchronous linkage mechanism.

[0014] Furthermore, the frame is provided with two sealing grooves, and the closed angle of the sealing groove cross-section circle is 120°.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. Good sealing performance: The design adopts multiple sealing strips to ensure the airtightness of the device when the louvers are fully closed, which can effectively prevent rainwater from seeping in.

[0017] 2. Simple structure: manual operation, no power required, high reliability.

[0018] 3. Flexible manual adjustment: The device uses a worm gear transmission system for speed reduction, torque increase, and self-locking. The opening and closing angle of the louvers can be precisely controlled by a manual knob to adapt to different ventilation needs.

[0019] 4. High synchronization accuracy: The rigid transmission of the gear and rack ensures the consistency of movement of each blade and the deviation of the opening and closing angle is extremely small. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the specific embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a diagram of the embedded manual ventilation device assembly in this utility model;

[0022] Figure 2This is a reverse view of the embedded manual ventilation device in this utility model;

[0023] Figure 3 This is a front view of the embedded manual ventilation device in this utility model;

[0024] Figure 4 This is a schematic diagram of the frame structure in this utility model;

[0025] Figure 5 This is a schematic diagram of the louver blade structure in this utility model;

[0026] Figure 6 This is a schematic diagram of the louver blade structure layout in this utility model;

[0027] Figure 7 This is a schematic diagram of the adjustment mechanism structure in this utility model;

[0028] Figure 8 This is a schematic diagram of the synchronous linkage mechanism in this utility model;

[0029] In the diagram, 10-frame, 20-louver, 30-sealing strip assembly, 40-adjustment mechanism, 50-synchronous linkage mechanism, 21-blade, 22-sealing strip, 41-limiting block, 42-rack, 43-fixing block, 44-worm gear, 45-lower limit block, 46-driven gear, 47-worm knob, 48-guide wire block, 49-drive gear, 41-limiting block, 42-rack, 43-fixing block, 44-worm gear, 45-lower limit block, 46-driven gear, 47-worm knob, 48-guide wire block, 49-drive gear, a-sealing groove A, b-sealing groove B. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. However, it should not be construed that the scope of the subject matter of the present invention is limited to the following embodiments. Any modifications, substitutions and alterations made based on ordinary technical knowledge and conventional means in the art without departing from the above-described technical concept of the present invention are included within the scope of the present invention.

[0031] This utility model provides an embedded manual ventilation and air exchange device for vehicle-mounted modular shelters, such as... Figures 1-3 As shown, the device mainly consists of a frame 10, louver assembly 20, sealing strip 30, adjustment mechanism 40, and synchronous linkage mechanism 50. The frame is embedded in the vehicle-mounted container wall, and flanges are provided around the frame. It is assembled and fixed to the container wall using bolts and waterproof sealant. The louvers are evenly distributed horizontally in the middle of the frame, protruding 10mm from the flange edge of the frame 10. The ventilation volume of the device is controlled by manually adjusting the opening and closing angle. The sealing strip is set on the inside of the frame and between the louvers to ensure the airtightness when the louvers are closed.

[0032] The frame 10 is designed as a rectangular structure, embedded within the bulkhead and flush with it to minimize external protrusion. The frame 10 is formed by welding the top, bottom, left, and right side frames. The frame is made of high-strength aluminum alloy using a one-piece stretching forming technology, and the surface is treated with anti-corrosion to ensure durability. The frame 10 is suitable for vehicle-mounted bulkheads with a thickness of 42-50mm. A cross-sectional diagram of the frame 10 is shown below. Figure 4 As shown, the frame is provided with circular sealing grooves Aa and Bb. The closed angle of the sealing groove cross section is 120°, which is used to fix the sealing strip and form a double sealing and waterproof design with the louver 20 to prevent the sealing strip from falling off the frame.

[0033] The louver 20 consists of multiple blades 21 and a sealing strip 22, such as Figure 5 and Figure 6 As shown, blade 21 is made of high-strength aluminum alloy using integrated stretch forming technology, and its surface is treated with anti-corrosion. The louvered blades 20 employ an overlapping waterproof design, with adjacent blades 21 installed in a top-to-bottom overlapping manner. The upper edge of each blade 21 overlaps the inner side of the previous blade 21, with an overlap width of approximately 20mm. Two parallel rubber sealing strips are embedded in the overlapping area of ​​each blade 21. These sealing strips are solid circles with good elasticity and weather resistance, forming a tight seal under the pressure of the overlapping blades, effectively preventing rainwater from seeping in between the blades.

[0034] The sealing strip assembly 30 includes a sealing strip 22 disposed between the louver 20 and the frame 10. The sealing strip 22 is made of EPDM rubber, which has good elasticity and weather resistance, and its cross-section is a solid circle. Under the compression of the closed louvers, it forms a tight seal, effectively preventing rainwater from seeping between the louvers.

[0035] The regulating mechanism 40 employs a combination of worm gear and rack and pinion transmission to achieve synchronous opening and closing of the blades, enabling precise ventilation and waterproof sealing. For example... Figure 7 As shown, the adjustment mechanism 40 mainly consists of an upper limit block 41, a rack 42, a fixed block 43, a worm gear 44, a lower limit block 45, a driven gear 46, a worm knob 47, a wire block 48, and a driving gear 49. The whole assembly is installed in the left frame 10 of the device to ensure a compact structure that does not affect the overall appearance and function of the device.

[0036] Manually rotating the worm gear knob 47 drives the worm wheel 44 to rotate perpendicular to the axial direction of the knob 47. Due to the large transmission ratio and self-locking properties of the worm gear drive, manual operation is labor-saving, and it prevents the blades 21 from rotating on their own due to gravity or external factors when not in operation. The worm wheel 44 is fixedly connected to a drive shaft 54 ​​running through the transverse length of the synchronous linkage 50. When the worm wheel 44 rotates, it drives the drive shaft 54 ​​and the driving gear 49, which is coaxial with the worm wheel 44 and mounted on the drive shaft, to rotate. Each blade has a driven gear 46 fixedly connected to one end. The driving gear 49 meshes with the rack 42, and the driven gear 46 meshes with the driving gear 49. When the driving gear 49, coaxial with the worm wheel 44, rotates, it pushes the rack 42 to move linearly along the longitudinal edge of the device, thereby driving all the other driven gears 46 to rotate, and consequently driving all the blades 21 to rotate synchronously around their respective axes, realizing the opening and closing action of the device. Meanwhile, the device is equipped with an upper limit block 41 and a lower limit block 45 to control the opening angle of the blade 21, and a fixing block 43 to support and fix the position of the worm knob 47 so that its rotational movement remains stable.

[0037] Synchronous linkage mechanism 50, such as Figure 8 As shown, the synchronous linkage mechanism 50 consists of a drive rod 51, an active connecting rod 52, a driven connecting rod 53, and a transmission shaft 54. All components are evenly distributed within the device frame 10. The drive rod 51 is located on one side of the device and is fixedly connected to the transmission shaft 54. It rotates synchronously with the worm gear 44 and is made of stainless steel, possessing sufficient strength and rigidity to ensure it does not deform during operation. One end of the active connecting rod 52 is connected to the drive rod 51, and the other end is connected to the blade. It oscillates by rotating the drive rod 51. One end of the driven connecting rod 53 is connected to the frame 10, and the other end is connected to the blade 21. The active connecting rod 52 and the drive rod 51, the active connecting rod 52 and the blade 21, the driven connecting rod 53 and the frame 10, and the driven connecting rod 53 and the blade 21 are all connected by pins, forming movable joints to ensure flexible rotation between the connecting rods.

[0038] When the drive shaft 54 ​​rotates, the drive rod 51 starts to rotate synchronously. The rotation of the drive rod 51 causes the connected active link 52 to swing in an arc. The swing of the active link 52 is transmitted to each driven link 53. The rotation of the driven link 53 further drives the connected blade 21 to rotate around its own rotation axis. Since all the driven links 53 are interconnected with the active link 52 and move in the same way, the synchronous opening and closing of all the blades 21 is achieved.

[0039] This device is a simple, easy-to-operate, and highly waterproof embedded manual ventilation system. It solves the problems of inconvenient ventilation adjustment, poor sealing, and power dependence in existing technologies, thus meeting the ventilation needs of vehicle-mounted shelters in complex environments. It is suitable for the ventilation needs of military, medical, and emergency vehicle-mounted shelters, and exhibits excellent waterproof performance, especially in rainy, humid, or dusty environments. The embedded structural design supports integrated installation on shelter walls at an angle of 60° to 90° to the horizontal plane, saving space and meeting the diverse layout design requirements of vehicle-mounted shelters.

[0040] The above provides a detailed description of the embedded manual ventilation device provided by this utility model. Specific examples have been used to illustrate the structure and working principle of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims of this utility model.

Claims

1. An embedded manual ventilation device, comprising a frame (10), characterized in that: Several louvers (20) are evenly arranged horizontally within the frame (10). The louvers (20) are connected to an adjustment mechanism (40). The adjustment mechanism (40) is equipped with a limit block to control the opening and closing angle of all louvers (20). The louvers (20) are also connected to a synchronous linkage mechanism (50) to realize the synchronous opening and closing of all louvers (20). The adjustment mechanism (40) includes a worm knob (47), one end of which is meshed with a worm wheel (44) and a fixing block (43) is fixed at the end of the worm knob (47). The worm wheel (44) is also meshed with a rack (42), and an upper limit block (41) and a lower limit block (45) are provided at both ends of the rack (42). The synchronous linkage mechanism (50) includes a drive rod (51), an active linkage (52) and a driven linkage (53) connected in sequence. The other end of the drive rod (51) is connected to the transmission shaft (54), and one end of the driven linkage (53) is connected to the frame (10). The active linkage (52) and the driven linkage (53) are connected to the blade (21). The worm gear (44) is fixedly connected to a drive shaft (54) in the transverse length direction of a through-device of the synchronous linkage mechanism (50).

2. The embedded manual ventilation device according to claim 1, characterized in that: The louver (20) includes several blades (21) and sealing strips (22). The blades (21) are installed in an overlapping manner from top to bottom. The upper edge of each blade (21) overlaps the inner side of the previous blade (21). Two parallel sealing strips (22) are embedded in the overlapping part of each blade (21). The sealing strips (22) are solid circles.

3. The embedded manual ventilation device according to claim 1, characterized in that: The adjustment mechanism (40) also includes several pairs of meshing driven gears (46) and driving gears (49). One end of each blade (21) is fixedly connected to the driven gear (46), and the driving gear (49) meshes with the rack (42).

4. The embedded manual ventilation device according to claim 1, characterized in that: The frame (10) is provided with two sealing grooves, and the closed angle of the sealing groove cross section circle is 120°.

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