Adjustable opening and closing amplitude pultrusion process shutter

Abstract

The application discloses a pultrusion process letter box, which comprises a box body, a first blade, a top ventilation opening, a hinge, a box door, a second blade, an upper cover and an opening and closing amplitude adjusting mechanism. The box body is integrally formed by using glass fiber reinforced plastic composite material through a pultrusion process, and has high structural strength and corrosion resistance. The upper cover is precisely opened and closed through the opening and closing amplitude adjusting mechanism. The mechanism is composed of a servo motor, a synchronous wheel set, a synchronous belt, a threaded block and a screw groove sleeve, can automatically adjust the opening and closing angle of the upper cover according to the feedback data of the wind speed and temperature and humidity sensors, optimizes the ventilation efficiency, and reduces the temperature lag in the box. A laser ranging sensor is arranged at the bottom of the upper cover to monitor the opening and closing positions in real time. The box body is inserted into a support through an insertion block, and is provided with a worm and gear locking mechanism, so that the box body can be quickly installed and stably fixed. The application has the advantages of intelligent regulation and control, convenient installation and strong weather resistance, and is suitable for high-precision meteorological observation scenes.

Description

Technical Field

[0001] This application relates to the field of building ventilation and lighting technology, and more specifically to a pultruded louvered box with adjustable opening and closing range. Background Technology

[0002] Pultrusion-processed Stevenson screens are meteorological protection devices manufactured using fiberglass composite materials through pultrusion molding technology. Their main structure typically consists of a box body, a door, and louvers distributed on the box body and door. Natural ventilation allows for air exchange between the inside and outside of the box, ensuring that observation instruments such as temperature and humidity sensors operate under near-realistic environmental conditions. Existing Stevenson screens mostly employ a fixed top structure with a non-adjustable closed or semi-closed cover. This prevents dynamic adjustment of the ventilation opening area based on environmental meteorological parameters, leading to insufficient air circulation inside the box under complex meteorological conditions such as clear skies without wind or sudden wind speed changes. This results in a temperature lag effect, affecting the real-time performance and accuracy of observation data. Furthermore, traditional Stevenson screens often rely on bolt fixing or welding for installation, making disassembly inconvenient and hindering equipment maintenance, transportation, and rapid deployment between different observation stations.

[0003] In the aforementioned technologies, due to the fixed structure of the top cover and the lack of active control capabilities, the ventilation opening cannot be intelligently adjusted according to real-time environmental parameters such as wind speed, temperature, and humidity. This results in a sluggish response to temperature and humidity inside the box, making it difficult to meet the requirements of high-precision meteorological observation for dynamic data response. At the same time, the traditional installation method has a rigid structure and is cumbersome to operate, which not only increases the labor intensity of on-site installation but also makes the equipment prone to displacement or damage in strong winds or vibration environments due to unstable installation, thus reducing the reliability and applicability of the equipment.

[0004] Therefore, there is an urgent need to provide a pultrusion process louver box with adjustable opening and closing range to solve the above-mentioned technical problems. Summary of the Invention

[0005] This invention provides a pultrusion process louvered box with adjustable opening and closing range, which can solve the technical problem that existing pultrusion process louvered boxes do not have an adjustable opening and closing range function for the top cover.

[0006] This invention provides a pultruded louvered box with adjustable opening and closing range, comprising a box body made of fiberglass composite material formed by pultrusion process, with a top ventilation opening; a first blade fixedly mounted on the side wall of the box body; a top cover located directly above the top ventilation opening and capable of sliding and closing vertically; and an opening and closing range adjustment mechanism including a rotating rod, a threaded block, a threaded sleeve, a servo motor, a single-groove synchronous pulley, a double-groove synchronous pulley, and a synchronous belt; the threaded sleeve is fixedly connected to the bottom center of the top cover and threadedly engaged with the threaded block. The rotating rod is vertically mounted on the inner wall of the top of the housing, with its top end fixedly connected to the threaded block. The servo motor is fixedly mounted on the inner wall of the top of the housing, with its output shaft set horizontally. A single-groove synchronous pulley is fixedly sleeved on the output shaft of the servo motor. A double-groove synchronous pulley is fixedly sleeved on the lower middle part of the rotating rod. A synchronous belt is sleeved between the single-groove synchronous pulley and the double-groove synchronous pulley to transmit the rotational motion of the servo motor to the rotating rod. When the rotating rod rotates, it drives the threaded block to rotate, causing the threaded block to drive the threaded sleeve to rise and fall vertically in the internal thread of the threaded sleeve, thereby driving the upper cover to slide synchronously to adjust the opening and closing range.

[0007] Furthermore, it also includes a second blade, which is fixedly mounted on the door of the housing and is symmetrically distributed with the first blade.

[0008] Furthermore, it also includes a laser rangefinder sensor, which is located at the bottom of the top cover and is used to detect the vertical displacement of the top cover relative to the box body.

[0009] Furthermore, it also includes a temperature and humidity sensor, which is located at the bottom of the top cover and is used to measure the temperature and humidity inside the box.

[0010] Furthermore, it also includes a wind speed sensor, which is located on the top of the cover and is used to collect the wind speed outside the box.

[0011] Furthermore, it also includes a bracket, which is fixed to the bottom of the box, with an insert extending from its bottom end.

[0012] Furthermore, it also includes a support, which is fixed to the ground foundation and has a slot on its top that is adapted to the shape of the plug.

[0013] Furthermore, it also includes a support column, which is fixed to the bottom of the support to provide support.

[0014] Furthermore, a pin groove is provided on the side of the insert.

[0015] Furthermore, it also includes a bidirectional screw, which is rotatably mounted on the inner wall of the support, with its two ends having opposite threads.

[0016] Furthermore, it also includes a sliding plate, which is symmetrically threaded to both ends of the bidirectional screw. One end of the sliding plate is fixedly connected to a pin block, and the pin block corresponds to the pin groove on the insert block and can be inserted laterally.

[0017] Furthermore, it also includes a worm gear, which is rotatably mounted on the inner wall of the support, with a handwheel fixedly connected to its top end. The worm gear meshes with a worm wheel, which is coaxially fixed in the middle of the double-acting screw.

[0018] Furthermore, a limiting groove is provided on the inner wall of the bottom of the support, and the two side walls of the limiting groove slide in conjunction with the two end faces of the sliding plate.

[0019] Applying the technical solution of this application, a pultrusion process louvered box with adjustable opening and closing amplitude achieves active and precise control of the opening and closing degree of the top cover by setting a vertically sliding and closing top cover directly above the ventilation opening at the top of the box body, and configuring an opening and closing amplitude adjustment mechanism composed of a rotating rod, a threaded block, a threaded sleeve, a servo motor, a single-groove synchronous pulley, a double-groove synchronous pulley, and a synchronous belt. In this mechanism, the servo motor outputs rotational power horizontally, which is transmitted efficiently to the vertically installed rotating rod via the synchronous belt between the single-groove synchronous pulley and the double-groove synchronous pulley. The top of the rotating rod is fixedly connected to the threaded block, so that the threaded block rotates synchronously with the rotating rod. The threaded sleeve is fixed to the center of the bottom of the top cover and forms a threaded engagement relationship with the threaded block. Therefore, when the threaded block rotates, the threaded force between it and the threaded sleeve drives the threaded sleeve to rise and fall smoothly in the vertical direction, thereby driving the top cover to slide synchronously and realizing stepless adjustment of the opening and closing amplitude of the top ventilation opening. This structure completely avoids the limitations of traditional pultruded louver boxes that rely on fixed or manually adjustable top covers. It can dynamically adjust the ventilation area in real time according to environmental temperature, humidity, airflow demand, etc. without manual intervention, which significantly improves the environmental adaptability and intelligent control level of the louver box. It solves the technical problem that the opening and closing range of the top cover cannot be actively adjusted in the existing technology. At the same time, it utilizes the corrosion resistance and high strength characteristics of fiberglass composite materials to ensure the reliability and durability of the structure during long-term outdoor operation. Attached Figure Description

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

[0021] Figure 1 This is a schematic diagram of a preferred embodiment of the pultrusion process louver box provided by the present invention. Figure 2 for Figure 1 A schematic diagram of the front view of the structure; Figure 3 for Figure 1 An enlarged schematic diagram of part A shown in the image; Figure 4 for Figure 1 The enlarged schematic diagram of part B shown in the figure.

[0022] Reference numerals: 1. Housing; 2. First blade; 3. Top vent; 4. Hinge; 5. Door; 6. Second blade; 7. Top cover; 8. Rotating rod; 9. Threaded block; 10. Threaded sleeve; 11. Servo motor; 12. Single-groove synchronous pulley; 13. Double-groove synchronous pulley; 14. Laser rangefinder sensor; 15. Wind speed sensor; 16. Temperature and humidity sensor; 17. Control module; 18. Bracket; 19. Insert block; 20. Pin groove; 21. Support; 22. Column; 23. Slot; 24. Bidirectional screw; 25. Sliding plate; 26. Pin block; 27. Worm gear; 28. Worm wheel; 29. ​​Handwheel; 30. Limit groove. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0025] In this invention, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0026] As described in the background section, existing pultrusion process louvered boxes use a fixed top structure with an adjustable top cover, relying solely on natural ventilation for air exchange between the inside and outside of the box. This results in insufficient air circulation inside the box under weather conditions such as clear skies without wind or sudden changes in wind speed, leading to a temperature lag effect that affects the real-time performance and accuracy of temperature and humidity observation data. At the same time, traditional installation methods rely on bolts or welding, which are inconvenient to disassemble and hinder equipment maintenance and rapid deployment.

[0027] After extensive research, the inventors discovered that the root cause of the aforementioned predicament lies in the fact that the ventilation capacity of the Stevenson screen relies entirely on passive natural convection. The top cover, the only movable structure controlling the opening and closing of the top vents, is fixed as a rigid, non-adjustable component, preventing the screen from dynamically adjusting the ventilation area based on real-time environmental parameters (such as wind speed and temperature difference). This design contradiction of "fixed structure – passive response" causes the Stevenson screen to lose its core function of actively regulating ventilation when environmental changes are drastic, leading to the accumulation of thermal inertia and data response lag within the screen. Simultaneously, the rigid, fixed design of the installation structure further exacerbates the non-modular deployment and inefficient operation and maintenance of the equipment. However, these installation problems are not the direct root cause of the "technical problems"—namely, temperature lag and data distortion—the fundamental issue remains focused on the single structural defect of "the top cover's inability to actively adjust its opening and closing range."

[0028] Based on the above findings, the inventors proposed that by designing the top cover 7 as a structure that can slide and close vertically, and utilizing a synchronous belt drive system driven by a servo motor 11, the rotational motion of the motor is converted into the rotation of the rotating rod 8. Furthermore, through the threaded engagement of the threaded block 9 and the threaded sleeve 10, the rotational motion is linearly converted into the vertical lifting motion of the top cover 7, thereby achieving continuous, precise, and active control over the opening and closing range of the top ventilation opening 3. This concept breaks through the traditional design paradigm of "fixed and non-adjustable top cover 7" in louvered boxes, and for the first time introduces an active opening and closing adjustment mechanism based on mechanical transmission in pultrusion process louvered boxes. This allows the ventilation area to change in real time according to environmental parameters (such as wind speed and temperature difference), thereby increasing the opening and closing range to promote natural convection when there is no wind, and decreasing the opening and closing range when there is strong wind to avoid excessive heat dissipation interfering with observation, fundamentally eliminating the temperature hysteresis effect caused by insufficient or excessive ventilation.

[0029] Guided by this creative idea, the inventors proposed a pultrusion process louvered box with adjustable opening and closing range.

[0030] This application provides a pultruded louvered box with adjustable opening and closing range, comprising: a box body 1, the box body 1 being made of fiberglass composite material formed by pultrusion process, and having a top ventilation opening 3 on its top; a first blade 2, the first blade 2 being fixedly mounted on the side wall of the box body 1; a top cover 7, the top cover 7 being located directly above the top ventilation opening 3 and being able to slide and close vertically; and an opening and closing range adjustment mechanism, the opening and closing range adjustment mechanism including a rotating rod 8, a threaded block 9, a threaded sleeve 10, a servo motor 11, a single-groove synchronous pulley 12, a double-groove synchronous pulley 13, and a synchronous belt; the threaded sleeve 10 is fixedly connected to the bottom center position of the top cover 7 and is threadedly engaged with the threaded block 9; the rotating rod 8, the threaded sleeve 9, and the top cover 7 are all located above the top ventilation opening 3 and can slide and close vertically; the opening and closing range adjustment mechanism includes a rotating rod 8, a threaded block 9, a threaded sleeve 9, a threaded sleeve 9, a threaded sleeve 9, a threaded sleeve 9, a threaded sleeve 9, a threaded sleeve 9, a threaded sleeve 9, a threaded sleeve 9, and a threaded sleeve 9; the opening and closing range adjustment mechanism includes a rotating rod 8, a threaded block ... a threaded sleeve 9, a threaded sleeve 9, a threaded sleeve 9, a threaded sleeve 9, a threaded sleeve 9, a threaded The rod 8 is vertically rotatably mounted on the inner wall of the top of the housing 1, and its top end is fixedly connected to the threaded block 9; the servo motor 11 is fixedly mounted on the inner wall of the top of the housing 1, and its output shaft is horizontally set; the single-groove synchronous wheel 12 is fixedly sleeved on the output shaft of the servo motor 11; the double-groove synchronous wheel 13 is fixedly sleeved on the middle and lower part of the rotating rod 8; the synchronous belt is sleeved between the single-groove synchronous wheel 12 and the double-groove synchronous wheel 13 to transmit the rotational motion of the servo motor 11 to the rotating rod 8; when the rotating rod 8 rotates, it drives the threaded block 9 to rotate, so that the threaded block 9 drives the threaded sleeve 10 to rise and fall in the vertical direction in the internal thread of the threaded sleeve 10, thereby driving the upper cover 7 to slide synchronously to adjust the opening and closing range.

[0031] like Figures 1 to 4As shown, applying the technical solution of this embodiment, the pultruded louvered box with adjustable opening and closing range includes a box body 1. The box body 1 is made of fiberglass composite material formed by pultrusion process, and its top is provided with a top ventilation opening 3. The top cover 7 is located directly above the top ventilation opening 3 and can slide and close vertically. The opening and closing range adjustment mechanism includes a rotating rod 8, a threaded block 9, a threaded sleeve 10, a servo motor 11, a single-groove synchronous wheel 12, a double-groove synchronous wheel 13, and a synchronous belt. The threaded sleeve 10 is fixedly connected to the bottom center position of the top cover 7 and is threadedly engaged with the threaded block 9. The rotating rod 8 is vertically rotatably installed on the top inner wall of the box body 1, and its top end is fixedly connected to the threaded block 9. The servo motor 11 is fixedly installed on the top inner wall of the box body 1 and its output shaft is set horizontally. The single-groove synchronous wheel 12 is fixedly sleeved on the output shaft of the servo motor 11, and the double-groove synchronous wheel 13 is fixedly sleeved on the middle and lower part of the rotating rod 8. A synchronous belt is fitted between the single-groove synchronous pulley 12 and the double-groove synchronous pulley 13 to transmit the rotational motion of the servo motor 11 to the rotating rod 8. When the servo motor 11 starts, its output shaft drives the single-groove synchronous pulley 12 to rotate, and transmits the power to the double-groove synchronous pulley 13 through the synchronous belt, thereby driving the rotating rod 8 to rotate around its axis. The rotating rod 8 drives the threaded block 9 to rotate synchronously. Since the threaded sleeve 10 is threadedly engaged with the threaded block 9 and is limited by the upper cover 7 and cannot rotate on its own, the rotational motion of the threaded block 9 is converted into the linear lifting motion of the threaded sleeve 10 in the vertical direction, which in turn drives the upper cover 7 to slide in the vertical direction, realizing continuous and precise adjustment of the opening and closing range of the top ventilation opening 3. This directly solves the technical problem that the upper cover 7 of the pultrusion process louver box cannot achieve active adjustment of the opening and closing range in the existing technology, and improves the dynamic response capability and automation control level of the louver box to the environmental ventilation demand.

[0032] Furthermore, in this embodiment, a second blade 6 is also included. The second blade 6 is fixedly mounted on the door 5 of the box body 1. The door 5 is mounted on the box body 1 via a hinge 4 and is symmetrically distributed with the first blade 2.

[0033] In this embodiment, when the door 5 is opened, the second blade 6 fixedly installed on the door 5 and the first blade 2 fixedly installed on the side wall of the box 1 form a symmetrically distributed ventilation channel, allowing airflow to enter the internal space evenly from both sides of the box 1. This effectively eliminates the lateral airflow deviation and turbulent eddies caused by the opening of the door 5, thereby significantly improving the uniformity and measurement consistency of the temperature and humidity field inside the box 1. The design of this symmetrical structure does not require changing the vertical sliding adjustment mechanism of the top cover 7, nor does it affect the original function of the rotating rod 8, threaded block 9, threaded sleeve 10, servo motor 11, single-groove synchronous wheel 12, double-groove synchronous wheel 13 and synchronous belt in the opening and closing range adjustment mechanism to drive the top cover 7 to rise and fall in coordination. This realizes the independent optimization and synergistic effect of the lateral ventilation structure and the top opening and closing control, ensuring that the box 1 can maintain a stable and symmetrical aerodynamic environment under any opening and closing range, providing a reliable guarantee for precision temperature and humidity monitoring.

[0034] Furthermore, in this embodiment, a laser rangefinder 14 is also included. The laser rangefinder 14 is disposed at the bottom of the upper cover 7 and is used to detect the vertical displacement of the upper cover 7 relative to the housing 1.

[0035] In this embodiment, the laser rangefinder 14 is installed at the bottom of the upper cover 7 to collect the vertical displacement data of the upper cover 7 relative to the box body 1 in real time. Combined with the coordinated action of the rotating rod 8, threaded block 9, threaded sleeve 10, servo motor 11, single-groove synchronous wheel 12, double-groove synchronous wheel 13 and synchronous belt in the opening and closing amplitude adjustment mechanism, the upper cover 7 is precisely lifted and lowered, forming a closed-loop feedback mechanism. This allows the opening and closing amplitude of the upper cover 7 to be directly quantified and dynamically adjusted, solving the problem of insufficient accuracy caused by the reliance on experience judgment or indirect estimation of the opening and closing amplitude of the traditional louvered box upper cover 7. Through the real-time monitoring of displacement by the laser rangefinder 14, it can be ensured that the upper cover 7 is stably maintained at any set opening and closing position, improving the accuracy of environmental monitoring data and the level of intelligence in equipment operation.

[0036] Furthermore, in this embodiment, a temperature and humidity sensor 16 is also included. The temperature and humidity sensor 16 is disposed at the bottom of the upper cover 7 and is used to measure the temperature and humidity inside the box 1.

[0037] In this embodiment, the temperature and humidity sensor 16 is located at the bottom of the top cover 7, which can directly collect real-time temperature and humidity data inside the box 1 below the top cover 7. Since the top cover 7 is located directly above the top ventilation opening 3 and can slide and close vertically, the data measured by the sensor truly reflects the temperature and humidity changes in the environment inside the box 1, avoiding the measurement errors caused by airflow lag or heat conduction delay caused by traditional sensors located on the side wall or far end of the box 1. When the servo motor 11 of the opening and closing amplitude adjustment mechanism is started according to the feedback signal of the temperature and humidity sensor 16, its output shaft drives the single-groove synchronous wheel 12 to rotate, and drives the double-groove synchronous wheel 13 and the rotating rod 8 fixedly connected to it to rotate synchronously through the synchronous belt drive. The rotating rod 8 drives the threaded block 9 to rotate, so that the threaded block 9 pushes the threaded sleeve 10 to rise and fall vertically in the internal thread of the threaded sleeve 10, thereby driving the top cover 7 to slide and adjust the opening and closing amplitude synchronously, realizing closed-loop active control based on the actual temperature and humidity changes inside the box 1, effectively suppressing the temperature lag effect inside the box caused by sudden changes in the external environment, and improving the accuracy of environmental monitoring and the timeliness of control response.

[0038] Furthermore, in this embodiment, a wind speed sensor 15 is also included. The wind speed sensor 15 is disposed on the top of the upper cover 7 and is used to collect the wind speed outside the box 1.

[0039] In this embodiment, the wind speed sensor 15 is installed on the top of the cover 7 and can directly collect real-time wind speed data of the external environment of the box 1. This data serves as the input signal for closed-loop control, driving the servo motor 11 in the opening and closing amplitude adjustment mechanism to move. The servo motor 11 transmits rotational power to the rotating rod 8 through a transmission system consisting of a single-groove synchronous wheel 12, a synchronous belt, and a double-groove synchronous wheel 13, causing the threaded block 9, which is fixedly connected to the top of the rotating rod 8, to rotate synchronously. This, in turn, drives the threaded sleeve 10, which is fixedly connected to the bottom center of the cover 7, to rise and fall vertically, thereby realizing the dynamic adjustment of the opening and closing amplitude of the top ventilation port 3 by the cover 7. Since the wind speed sensor 15 is located on the top of the cover 7, its measurement position is directly consistent with the external airflow environment of the box 1, avoiding the problems of wind speed acquisition lag and distortion caused by traditional installation on the side wall or inside of the box 1. This ensures that the opening and closing range adjustment responds accurately to the actual wind conditions, thereby automatically increasing the opening and closing range to enhance ventilation and heat dissipation in strong winds, and decreasing the opening and closing range to maintain stable internal temperature and humidity in light winds or no winds, realizing intelligent control based on wind speed feedback from the real environment.

[0040] Furthermore, in this embodiment, a bracket 18 is also included, which is fixed to the bottom of the housing 1, and an insert 19 extends from its bottom end.

[0041] In this embodiment, the bracket 18 fixedly installed at the bottom of the box 1 forms an integrated load-bearing structure with the box 1. The insert 19 extending from the bottom is directly formed by the bracket 18 body and can be inserted into the corresponding slot 23 of the external support without additional connecting parts, realizing the rapid positioning and stable installation of the louvered box in the outdoor environment. The integral manufacturing method of the insert 19 and the bracket 18 ensures the structural strength and deformation resistance, avoiding the cumbersome installation and loosening risk caused by the traditional reliance on bolts or clips for fixing. When the opening and closing range adjustment mechanism drives the rotating rod 8 to rotate through the servo motor 11, causing the threaded block 9 to move up and down in the threaded sleeve 10, thereby controlling the upper cover 7 to accurately adjust the opening and closing range in the vertical direction, the stable support of the bracket 18 and the insert 19 ensures that the box 1 as a whole does not shift or tilt, thus ensuring the linearity of the sliding of the upper cover 7 and the consistency of the opening and closing accuracy of the vent, realizing the synergistic improvement of installation convenience and functional stability.

[0042] Furthermore, in this embodiment, a support 21 is also included. The support 21 is fixed to the ground foundation and has a slot 23 on its top. The slot 23 is adapted to the shape of the insert block 19.

[0043] In this embodiment, the bracket 18 is fixed to the bottom of the box 1, and the bottom end of the bracket extends into the insert 19. The support 21 is fixed to the ground foundation and the top is provided with a slot 23. The slot 23 and the insert 19 are adapted to each other. When the box 1 is installed on the ground foundation, the insert 19 can be directly inserted into the slot 23 to form a mechanical limiting fit, thereby realizing a stable positioning and anti-tipping connection between the box 1 and the ground foundation. This effectively overcomes the technical problem that the pultruded louvered box is prone to horizontal displacement or overturning in strong wind or vibration environment outdoors. This plug-in structure can achieve quick installation and reliable fixation without additional fasteners, and does not affect the vertical sliding function of the top cover 7 through the opening and closing range adjustment mechanism, ensuring the stability of the overall structure of the box 1 and its environmental adaptability.

[0044] Furthermore, in this embodiment, a support column 22 is also included, which is fixed to the bottom of the support 21 to provide support.

[0045] In this embodiment, the support column 22 is fixed to the bottom of the support 21 to provide support. By firmly supporting the support 21 on the ground foundation and using the matching connection between the insert 19 and the slot 23, the box 1 is positioned and installed. The support column 22, as a vertically downward rigid support structure, effectively enhances the load-bearing stability of the support 21 in the vertical direction, significantly improves the overturning resistance of the entire louvered box under wind load, vibration or external force, and avoids the risk of swaying or instability caused by the high center of gravity of the box 1. At the same time, the overall connection system formed by this structure, the bracket 18, the insert 19 and the slot 23 works together to ensure the structural integrity and positioning accuracy of the opening and closing range adjustment mechanism of the top cover 7 during long-term operation, thereby ensuring the reliable performance of the fiberglass composite box 1 formed by pultrusion process in complex environments.

[0046] Furthermore, in this embodiment, a pin groove 20 is formed on the side of the insert block 19.

[0047] In this embodiment, a pin groove 20 is provided on the side of the insert 19 extending from the bottom of the bracket 18. The pin groove 20 cooperates with the external locking element so that after the insert 19 is inserted into the slot 23 of the support 21, it can achieve axial limiting and stable locking through the pin groove 20. This effectively prevents the housing 1 from shifting or loosening due to wind vibration, thermal expansion and contraction or external force after installation, thereby significantly improving the overall installation stability and environmental adaptability of the louvered box. At the same time, since the top cover 7 can slide and close in the vertical direction, the operation of the opening and closing range adjustment mechanism will not interfere with the structure of the bracket 18. The coordinated design of the pin groove 20 and the insert 19 ensures that the housing 1 can still maintain a reliable connection with the support 21 while realizing the ventilation opening and closing function, improving the structural reliability and safety of the equipment during long-term outdoor operation.

[0048] Furthermore, in this embodiment, a bidirectional screw 24 is also included, which is rotatably mounted on the inner wall of the support 21, with its two ends having opposite threads.

[0049] In this embodiment, when the bidirectional screw 24 is rotatably installed on the inner wall of the support 21 with its two ends having opposite threads, the slot 23 at the top of the support 21 and the insert 19 extending from the bottom of the bracket 18 form a mating structure. During the rotation of the bidirectional screw 24, the reverse threads at both ends drive the clamping mechanisms on both sides to move inward or outward synchronously, thereby clamping or releasing the insert 19 in both directions, effectively preventing the housing 1 from detaching due to loosening of the plug-in fit under external vibration or wind load. This structure enhances the reliability of the plug-in fixation through mechanical self-locking, achieving a stable connection without additional fasteners, while not affecting the need for quick assembly and disassembly between the housing 1 and the support 21, significantly improving the stability and durability of the overall structure in the outdoor environment.

[0050] Furthermore, in this embodiment, a sliding plate 25 is also included. The sliding plate 25 is symmetrically threaded to both ends of the bidirectional screw 24. One end of the sliding plate 25 is fixedly connected to a pin block 26. The pin block 26 corresponds to the pin groove 20 on the insert block 19 and can be inserted laterally.

[0051] In this embodiment, when the bidirectional screw 24 rotates on the inner wall of the support 21, the reverse threads at both ends drive the symmetrically arranged sliding plates 25 to move towards or away from each other. The pin block 26 fixed to one end of the sliding plate 25 then moves laterally and aligns with or disengages from the pin groove 20 on the insert 19, thereby achieving mechanical locking or unlocking between the insert 19 and the top slot 23 of the support 21. This structure, through the synchronous transmission mechanism of the bidirectional screw 24, ensures that the pin blocks 26 on both sides are simultaneously and accurately inserted into or withdrawn from the pin groove 20, overcoming the problem that traditional plug-in structures are prone to loosening due to wind vibration or external force disturbance due to the lack of lateral locking. It significantly improves the installation stability and anti-displacement capability of the housing 1 on the ground foundation, and can achieve quick installation and disassembly without additional wrenches or fasteners, improving on-site operation efficiency.

[0052] Furthermore, in this embodiment, a worm gear 27 is also included. The worm gear 27 is rotatably mounted on the inner wall of the support 21, and a handwheel 29 is fixedly connected to its top end. The worm gear 27 meshes with a worm wheel 28, and the worm wheel 28 is coaxially fixed in the middle of the bidirectional screw 24.

[0053] In this embodiment, when the handwheel 29 is rotated to drive the worm 27 to rotate, the worm 27 meshes with the worm wheel 28, causing the worm wheel 28, which is coaxially fixed in the middle of the bidirectional screw 24, to rotate synchronously. This drives the bidirectional screw 24 to rotate under the action of the reverse threads at both ends. The rotation of the bidirectional screw 24 causes the sliding structures at both ends to move in opposite directions along the axial direction, realizing the insertion or withdrawal of the pin block 26 into the pin groove 20 of the insert block 19. Thus, without an external power source, the mating position between the insert block 19 and the top slot 23 of the support 21 is reliably locked or unlocked, ensuring that the housing 1 maintains a stable position under various environmental conditions and avoiding displacement caused by vibration or external force. At the same time, through the self-locking characteristics of the worm 27 and the worm wheel 28, the locked state is maintained for a long time without external force intervention, improving the reliability and safety of the overall structure.

[0054] Furthermore, in this embodiment, a limiting groove 30 is formed on the inner wall of the bottom of the support 21, and the two side walls of the limiting groove 30 slide in cooperation with the two end faces of the sliding plate 25.

[0055] In this embodiment, a limiting groove 30 is provided on the inner wall of the bottom of the support 21. The sliding plate 25 slides and engages with the inner walls of the limiting groove 30 on both sides, so that the sliding plate 25 moves linearly along the axial direction of the limiting groove 30 under the drive of the bidirectional screw 24. This effectively suppresses the deflection, lateral displacement or swaying of the sliding plate 25 due to uneven force or external disturbance during the lateral movement. This ensures that the pin 26 fixed to one end of the sliding plate 25 is always accurately aligned with the pin groove 20 on the insert 19, realizing the stable lateral insertion of the pin 26 and the pin groove 20. The limiting groove 30 forms a constraint guide on the two sides of the sliding plate 25, which not only improves the overall rigidity and positioning accuracy of the insert 19 after assembly with the top slot 23 of the support 21, but also significantly enhances the reliability of the engagement between the insert 19 and the slot 23 under long-term use or external vibration environment. This prevents the overall structure of the louvered box from becoming unstable due to the loosening or displacement of the insert 19, thereby ensuring the stable connection between the box 1 and the foundation during the operation of the opening and closing amplitude adjustment mechanism.

[0056] The process of the technical solution in this application is described below: When the Stevenson screen is installed on the ground foundation, the insert 19 at the bottom of the bracket 18 is inserted into the slot 23 at the top of the support 21, so that the insert 19 and the slot 23 are fitted together to form a mechanical limiting engagement; then the handwheel 29 is turned, which drives the worm 27 to rotate. The worm 27 meshes with the worm wheel 28, causing the worm wheel 28 to rotate synchronously. The worm wheel 28 is coaxially fixed in the middle of the double-acting screw 24, thereby driving the double-acting screw 24 to rotate; the threads at both ends of the double-acting screw 24 are opposite, and its rotation... The sliding plate 25 with symmetrical threaded engagement moves axially towards each other along the limiting groove 30 on the bottom inner wall of the support 21. The pin 26 fixed to one end of the sliding plate 25 moves laterally and inserts into the pin groove 20 on the side of the insert 19, realizing the mechanical locking between the insert 19 and the support 21, and completing the stable installation of the housing 1. The inner walls on both sides of the limiting groove 30 slide and engage with the two end faces of the sliding plate 25 to ensure that the pin 26 is always accurately aligned with the pin groove 20, preventing the insert 19 from shifting or loosening.

[0057] After the enclosure 1 is installed, a wind speed sensor 15 is installed on the top of the cover 7 to collect real-time wind speed data of the external environment of the enclosure 1; a temperature and humidity sensor 16 is installed on the bottom of the cover 7 to measure real-time temperature and humidity inside the enclosure 1; a laser rangefinder sensor 14 is installed on the bottom of the cover 7 to detect the vertical displacement of the cover 7 relative to the enclosure 1; the control module 17 drives the servo motor 11 to operate based on the data collected by the wind speed sensor 15, temperature and humidity sensor 16, and laser rangefinder sensor 14; the servo motor 11 is fixedly installed on the inner wall of the top of the enclosure 1, and its output shaft is horizontally set, driving the single-groove synchronous wheel 12 fixedly sleeved on the output shaft to rotate; the single-groove synchronous wheel 12 transmits the rotational power to the double-groove synchronous wheel 13 fixedly sleeved on the lower part of the rotating rod 8 through a synchronous belt, so that the double-groove synchronous wheel 13 drives the rotating rod 8 to rotate around its axis; the rotating rod 8 is vertically rotatably installed on the inner wall of the top of the enclosure 1, and its top end is fixedly connected to the threaded block 9, which is threadedly sleeved in the threaded groove sleeve 10. The threaded sleeve 10 is fixedly connected to the center of the bottom of the top cover 7. The rotation of the rotating rod 8 causes the threaded block 9 to drive the threaded sleeve 10 to rise and fall vertically in the internal thread of the threaded sleeve 10, thereby driving the top cover 7 to slide vertically along the top ventilation opening 3, realizing continuous and precise adjustment of the opening and closing range of the top ventilation opening 3. The opening and closing range of the top cover 7 is monitored in real time by the laser range sensor 14, forming a closed-loop feedback control to ensure that the top cover 7 is stably maintained in the set position. When the box door 5 is opened, the second blade 6 set on the box door 5 and the first blade 2 set on the side wall of the box body 1 form a symmetrically distributed ventilation channel, so that the airflow enters the internal space evenly from both sides of the box body 1, improving the uniformity of the temperature and humidity field and the measurement consistency inside the box body 1. This structure does not affect the vertical sliding adjustment mechanism of the top cover 7, nor does it affect the function of the servo motor 11, single-groove synchronous wheel 12, double-groove synchronous wheel 13, synchronous belt, rotating rod 8, threaded block 9 and threaded sleeve 10 in the opening and closing range adjustment mechanism to drive the top cover 7 to rise and fall in concert.

[0058] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0059] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0060] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A pultrusion-processed louvered box with adjustable opening and closing range, characterized in that, include: The enclosure is made of fiberglass composite material formed by pultrusion process, and has a top ventilation opening; The first blade is fixedly mounted on the side wall of the housing; The top cover is located directly above the top vent and can slide and close vertically. An opening / closing amplitude adjustment mechanism, comprising a rotating rod, a threaded block, a threaded sleeve, a servo motor, a single-groove synchronous pulley, a double-groove synchronous pulley, and a synchronous belt; The threaded sleeve is fixedly connected to the bottom center position of the upper cover and is threadedly engaged with the threaded block; The rotating rod is vertically rotatably installed on the inner wall of the top of the box, and its top end is fixedly connected to the threaded block. The servo motor is fixedly installed on the inner wall of the top of the housing, and its output shaft is set horizontally. The single-groove synchronous pulley is fixedly sleeved on the output shaft of the servo motor; The double-groove synchronous pulley is fixedly sleeved on the lower middle part of the rotating rod; The synchronous belt is sleeved between the single-groove synchronous pulley and the double-groove synchronous pulley to transmit the rotational motion of the servo motor to the rotating rod; When the rotating rod rotates, it drives the threaded block to rotate, causing the threaded block to drive the threaded sleeve to rise and fall vertically in the internal thread of the threaded sleeve, thereby driving the upper cover to slide and adjust the opening and closing range synchronously.

2. The adjustable opening and closing amplitude pultrusion process louver box according to claim 1, characterized in that, It also includes a second blade, which is fixedly mounted on the door of the housing and is symmetrically distributed with the first blade; and / or, It also includes a laser rangefinder sensor, which is disposed at the bottom of the upper cover and is used to detect the vertical displacement of the upper cover relative to the housing; and / or, It also includes a temperature and humidity sensor, which is located at the bottom of the top cover and is used to measure the temperature and humidity inside the box; And / or, It also includes a wind speed sensor, which is located on the top of the cover and is used to collect the wind speed outside the box.

3. The adjustable opening and closing amplitude pultrusion process louver box according to claim 1, characterized in that, It also includes a bracket, which is fixed to the bottom of the housing, with an insertion block extending from its bottom end.

4. The adjustable opening and closing amplitude pultrusion process louver box according to claim 3, characterized in that, It also includes a support fixed to a ground foundation, with a slot on its top that is adapted to the shape of the insert.

5. The adjustable opening and closing amplitude pultrusion process louver box according to claim 4, characterized in that, It also includes a support column, which is fixed to the bottom of the support to provide support.

6. The adjustable opening and closing amplitude pultrusion process louver box according to claim 3, characterized in that, The side of the insert has a slot.

7. The adjustable opening and closing amplitude pultrusion process louver box according to claim 4, characterized in that, It also includes a bidirectional screw, which is rotatably mounted on the inner wall of the support, with its two ends having opposite threads.

8. The adjustable opening and closing amplitude pultrusion process louver box according to claim 7, characterized in that, It also includes a sliding plate, which is symmetrically threaded to both ends of the bidirectional screw, with one end of the sliding plate fixed to a pin block. The pin block corresponds to the pin groove on the insert block and can be inserted laterally.

9. The adjustable opening and closing amplitude pultrusion process louver box according to claim 7, characterized in that, It also includes a worm gear, which is rotatably mounted on the inner wall of the support, with a handwheel fixedly connected to its top end. The worm gear meshes with a worm wheel, which is coaxially fixed in the middle of the bidirectional screw.

10. The adjustable opening and closing amplitude pultrusion process louver box according to claim 8, characterized in that, A limiting groove is provided on the inner wall of the bottom of the support, and the two side walls of the limiting groove slide in cooperation with the two end faces of the sliding plate.

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