Opening and closing mechanism of curtain wall environment self-adaptive ventilation opening

Abstract

The invention relates to the technical field of curtain walls, in particular to a curtain wall environment self-adaptive ventilation opening opening and closing mechanism which comprises a rotary connecting structure used for rotationally connecting a first plate body to a ventilation opening of a wall body. And the opening structure acts on the first plate body and is used for continuously applying a first moment for driving the first plate body to rotate towards the opening direction of the ventilation opening, so that the ventilation opening tends to be in a normally open state. The ventilation opening is controlled to be opened and closed through dynamic balance between the continuous first torque provided by the opening structure and the variable second torque provided by the water weight increasing device, in sunny weather, the first torque applied by the opening structure drives the first plate body to be rotationally opened, and natural ventilation of a building curtain wall interlayer is maintained; when it rains, rainwater is absorbed by the water weight increasing device to increase the weight of the device, and then a second moment overcoming the first moment is generated to drive the first plate body to rotate reversely until the ventilation opening is closed, so that the ventilation opening is automatically opened and closed according to weather conditions.

Description

Technical Field

[0001] The present invention relates to the technical field of curtain walls, and in particular to an opening and closing mechanism for an environment-adaptive vent in a curtain wall. Background Art

[0002] As the mainstream external envelope structure of modern buildings, the building curtain wall is a building envelope system composed of a supporting structure system and panels. It undertakes important functions such as architectural aesthetics, thermal insulation, waterproof sealing, and indoor and outdoor ventilation. The ventilation function is a key performance requirement of the curtain wall system, and its implementation method directly affects the building's energy consumption level and indoor environmental quality.

[0003] At present, curtain wall systems generally use fixed shutters or simple openable devices to achieve ventilation. Although the fixed shutter structure can play a basic rainproof role, it cannot dynamically adjust the state of the vents according to external wind and rain conditions. In bad weather, it is easy for rainwater to seep in, and in good weather, the ventilation volume is fixed and the natural ventilation effect cannot be maximized. The manual opening and closing device relies entirely on manual operation, with poor real-time performance and insufficient practicality. Although some solutions using electric control can achieve automatic adjustment, they have obvious defects such as complex system, high cost, dependence on external energy and difficult maintenance.

[0004] Therefore, there is an urgent need to develop a curtain wall vent mechanism that can achieve fully autonomous and intelligent adjustment according to changes in environmental wind and rain. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide an opening and closing mechanism for curtain wall environment adaptive vents to solve the above technical problems.

[0006] Based on the above objectives, the present invention provides an opening and closing mechanism for curtain wall environment adaptive vents, comprising: A rotating connection structure, used for rotating the first plate to connect it to the vent of the wall; an opening structure, acting on the first plate, for continuously applying a first torque driving the first plate to rotate in a direction of opening the vent, so that the vent tends to be in a normally open state; The water-increasing weight device is arranged on the first plate body and is at least partially composed of water-absorbing material. When it comes into contact with rainwater, it increases its own weight to generate a second torque that drives the first plate body to rotate in the direction of closing the vent. The direction of the second torque is opposite to that of the first torque, and the magnitude of the second torque increases with the increase of water absorption.

[0007] As a preferred technical solution of the present invention, the rotating connection member includes a hinge or a hinge.

[0008] As a preferred technical solution of the present invention, the water-increasing weight device includes a weight-increasing block made of a highly absorbent resin, sponge or water-swelling rubber.

[0009] As a preferred technical solution of the present invention, the opening and closing mechanism further includes a limiting structure for limiting the maximum closing angle of the first plate.

[0010] As a preferred technical solution of the present invention, the limiting structure includes a bottom sealing plate, which is arranged on the wall, and the inner side of the bottom sealing plate is in conflict with the outer side of the first plate body.

[0011] As a preferred technical solution of the present invention, the opening structure includes: a sleeve, which is arranged on the bottom sealing plate, and a sliding cavity is formed inside the sleeve; A push plate, one end of which is slidably disposed in the sliding cavity and the other end of which is fixedly connected to a sliding rod, one end of which passes through a sliding groove provided on the surface of the bottom sealing plate; The spring is arranged in the sliding cavity and keeps in contact with the push plate, and is used to apply thrust to the push plate to drive it to drive the slide rod to extend out of the slide slot, thereby pushing the first plate body to rotate in the direction of opening the vent through the slide rod.

[0012] As a preferred technical solution of the present invention, the water-weighting device further includes: A weight box is provided with a space for placing weight blocks, and a water inlet is provided at the upper end of the weight box; The water storage structure is used to collect rainwater and guide the rainwater into the water inlet hole to increase the weight of the weight-bearing block.

[0013] As a preferred technical solution of the present invention, the water storage structure includes a water reservoir with a water inlet on the surface, a drainage hole at the bottom of the water reservoir, and a conduit for transporting rainwater is provided between the drainage hole and the water inlet.

[0014] As a preferred technical solution of the present invention, a stop block is provided at the upper end of the bottom sealing plate, and the stop block is made of water-absorbing and expanding material. A through hole is provided at the bottom of the counterweight box, and rainwater can flow into the bottom sealing plate through the through hole and be absorbed by the stop block, thereby increasing the volume of the stop block to prevent strong wind from acting on the first plate body and causing it to accidentally reset and open the vent.

[0015] As a preferred technical solution of the present invention, the water reservoir is provided with a filter plate at the water inlet, and the filter plate is used to prevent debris other than rainwater from entering the water reservoir.

[0016] Beneficial effects of the present invention: The present invention uses the dynamic balance between the continuous first torque provided by the opening structure and the variable second torque provided by the water-increasing device to control the opening and closing of the vents. In clear weather, the first torque applied by the opening structure drives the first plate to rotate and open, maintaining natural ventilation of the building curtain wall mezzanine; when it rains, rainwater is absorbed by the water-increasing device to increase its mass, thereby generating a second torque that gradually increases and overcomes the first torque, driving the first plate to rotate in the opposite direction until the vent is closed. When the rain ends, the rainwater content decreases, causing the second torque to decrease synchronously until it is less than the first torque, and the vent is reopened and ventilation is resumed, thereby achieving the technical effect of automatically adjusting the opening and closing of the vents according to weather conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a schematic diagram of the external three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the external side structure of the present invention; Figure 3 It is a partial side view structural schematic diagram of the present invention; Figure 4 It is a schematic diagram of a partial three-dimensional structure of the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of the wall and the second plate of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the first plate body, water reservoir, bottom sealing plate and rear end of the main support of the present invention; Figure 7 This is a side structural diagram of the first plate body, water reservoir, bottom sealing plate and main support of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the first plate body, water reservoir, bottom sealing plate and the front end of the main support of the present invention; Figure 9 It is a partially cutaway three-dimensional structural diagram of the first plate body, counterweight box, bottom sealing plate and stop block of the present invention; Figure 10 It is a schematic diagram of the three-dimensional structure of the wall, main bracket, auxiliary bracket, hinge and water reservoir of the present invention; Figure 11 It is a partially cutaway three-dimensional structural diagram of the first plate body and the counterweight box of the present invention; Figure 12 For the present invention Figure 3A in the middle is an enlarged structural diagram; Figure 13 This is a schematic diagram of the three-dimensional structure of the first plate body, ventilation holes, bottom sealing plate and front end of the shielding plate of the present invention; Figure 14 It is a schematic diagram of the rear end structure of the first plate body, ventilation holes, bottom sealing plate and shielding plate of the present invention.

[0019] The markings in the figure are: 1. Wall; 2. Ventilation hole; 3. Second plate; 4. Main bracket; 5. Hinge; 6. First plate; 7. Bottom cover plate; 8. Counterweight box; 9. Raised part; 10. Through hole; 11. Weight block; 12. Groove; 13. Stop block; 14. Water inlet; 15. Auxiliary bracket; 16. Water reservoir; 17. Water inlet; 18. Drain hole; 19. Conduit; 20. Filter plate; 21. Sleeve; 22. Slide rod; 23. Slide groove; 24. Push plate; 25. Spring; 26. Top cover plate; 27. Side cover plate; 28. Hard plate; 29. ​​Diversion hole; 30. Ventilation hole; 31. Shielding plate; 32. Elastic buffer pad. DETAILED DESCRIPTION

[0020] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to specific embodiments.

[0021] It should be noted that, unless otherwise defined, the technical or scientific terms used in the present invention should have the usual meanings understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0022] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, an opening and closing mechanism for an environmentally adaptive vent in a curtain wall comprises: a rotating connection structure for rotatably connecting a first plate 6 to a vent 2 on a wall 1; an opening structure acting on the first plate 6 for continuously applying a first torque driving the first plate 6 to rotate in a direction of opening the vent 2, so that the vent 2 tends to be normally open; and a water-increasing weight device, which is disposed on the first plate 6 and is at least partially composed of a water-absorbing material, so that when it comes into contact with rainwater, it increases in weight to generate a second torque driving the first plate 6 to rotate in a direction of closing the vent 2, the second torque being in the opposite direction to the first torque, and the magnitude of the second torque increasing with increasing water absorption. The above technical solution can realize purely mechanical environmental adaptive intelligent control without the need for external power, achieving the technical effects of energy saving, rain protection, and improved building intelligence. Specifically, its working principle is to use the dynamic balance between the continuous first torque provided by the opening structure and the variable second torque provided by the water-increasing weight device to control the opening and closing of the vent 2. During operation, in clear weather, the first torque applied by the opening structure drives the first plate 6 to rotate open, maintaining natural ventilation of the building curtain wall mezzanine; when it rains, rainwater is absorbed by the water-increasing weight device, increasing its mass, and then generating a gradually increasing second torque, which overcomes the first torque and drives the first plate 6 to rotate in the opposite direction until the vent 2 is closed; when the rain ends, the rainwater content decreases, causing the second torque to decrease synchronously until it is less than the first torque, and the first plate 6 rotates to open the vent 2 and resume ventilation, thereby successfully solving the problem that the traditional fixed vent 2 cannot automatically adjust according to weather conditions, resulting in rainwater intrusion or low ventilation efficiency.

[0023] like Figure 3 、 Figure 6 、 Figure 7 and Figure 8 As shown, in this embodiment, the rotating connection member includes a hinge or hinge 5; The above technical solution makes the first plate body 6 easy to install, rotates smoothly and has high durability. Its working principle is to use the axis system of the hinge or hinge 5 to provide a rotation center with low friction resistance. Specifically, during operation, the first plate body 6 is fixed to the wall 1 through a side leaf plate of the hinge or hinge 5, and the other side leaf plate rotates around the axis with the first plate body 6, thereby achieving smooth and reliable opening and closing actions, solving the technical problem that the rotating connection structure needs to take into account both structural strength and rotation flexibility.

[0024] like Figure 6 and Figure 9 As shown, in this embodiment, the water-weighting device includes a weight-increasing block 11 made of a highly absorbent resin, sponge or water-swelling rubber; The above-described technical solution can quickly respond to rainfall and provide sufficient closing force, offering the advantages of responsiveness, low material cost, and easy accessibility. Specifically, its working principle is to utilize the hydrophilic properties of these materials, which rapidly absorb and lock large amounts of water upon contact with water, thereby significantly increasing their own weight. During operation, rainwater drips or splashes onto the weighting block 11 through the opening of the vent 2 or other paths, increasing its mass several times or even dozens of times within tens of seconds to minutes, thereby quickly generating sufficient secondary torque to drive the first plate 6 to close the vent 2.

[0025] like Figure 3 、 Figure 4 and Figure 12 As shown, in this embodiment, the opening and closing mechanism further includes a limiting structure for limiting the maximum closing angle of the first plate body 6; specifically, the limiting structure includes a bottom sealing plate 7, which is arranged on the wall body 1, and the inner side of the bottom sealing plate 7 is in conflict with the outer side of the first plate body 6; The above-mentioned technical solution can accurately control the rotation range of the first plate body 6. At the same time, the bottom sealing plate 7 can also play a role of diversion and partial decoration. Specifically, its working principle is to limit the rotation angle range of the first plate body 6 through mechanical blocking, thereby producing a technical effect of protecting the mechanism, stabilizing the working state, and ensuring the reliability of the closing action. Furthermore, when the bottom sealing plate 7 is used as a limiting structure, the first plate body 6 moves outward, and when its outer edge rotates to contact the inner surface of the bottom sealing plate 7, the movement is blocked. At this time, the vent 2 is closed to prevent the first plate body 6 from continuing to move in the current direction, thereby accidentally opening the vent 2.

[0026] like Figure 8 、 Figure 9 and Figure 12 As shown, in this embodiment, the opening structure includes: a sleeve 21, which is provided on the bottom sealing plate 7, and a sliding cavity is formed inside the sleeve 21; a push plate 24, one end of which is slidably provided in the sliding cavity and the other end is fixedly connected to the slide rod 22, and one end of the slide rod 22 passes through the slide groove 23 provided on the surface of the bottom sealing plate 7; a spring 25, which is provided in the sliding cavity and keeps in contact with the push plate 24, and is used to apply a thrust to the push plate 24 to drive it to drive the slide rod 22 to extend out of the slide groove 23, thereby pushing the first plate body 6 to rotate in the direction of opening the vent 2 through the slide rod 22; The above technical solution can provide a controllable, adjustable and linearly stable opening torque. Compared with simple counterweights, it produces the advantageous technical effects of constant thrust, small space occupation and easy adjustment of torque by replacing springs 25 with different spring coefficients. Specifically, its working principle is to utilize the elastic potential energy of the spring 25 to convert into a driving force. During operation, the pre-compressed spring 25 continuously pushes the push plate 24 to slide in the cavity of the sleeve 21, and the push plate 24 drives the slide rod 22 to extend outward along the slide groove 23. The end of the slide rod 22 always presses against the inner side of the first plate body 6, thereby applying a continuous first torque to push it open. When the first plate body 6 is closed, it will force the slide rod 22 to retract and compress the spring 25.

[0027] like Figure 3 、 Figure 6 and Figure 9 As shown, in this embodiment, the water-increasing weight device further includes: a counterweight box 8, a space for placing the weight-increasing block 11 is formed inside the counterweight box 8, and a water inlet hole 14 is provided at the upper end of the counterweight box 8; a water storage structure for collecting rainwater and directing the rainwater into the water inlet hole 14 to increase the weight of the weight-increasing block 11; The adoption of the above technical solution can speed up the response speed of rainwater, improve the water absorption efficiency, and ensure that the closing action is faster and more reliable. Specifically, its working principle is to actively collect and guide rainwater, and concentrate on adding weight to the weight block 11. During operation, the rainwater is collected by the water storage structure and introduced into the box through the water inlet hole 14 at the upper end of the counterweight box 8, and is fully absorbed by the weight block 11 therein. This solves the problem that relying solely on natural dripping to absorb water may be inefficient and slow, especially when the weight block 11 is partially blocked.

[0028] like Figure 4 、 Figure 8 and Figure 10 As shown, in this embodiment, the water storage structure includes a water reservoir 16 with a water inlet 17 on the surface, a drainage hole 18 is opened at the bottom of the water reservoir 16, and a conduit 19 for transporting rainwater is provided between the drainage hole 18 and the water inlet 14; The adoption of the above technical solution can increase the rainwater collection area, increase the water collection efficiency, and can directionally transport rainwater to the weight-added block 11. Specifically, its working principle is to construct a centralized rainwater collection and transportation system. During operation, rainwater enters from the water inlet 17 on the surface of the water reservoir 16, flows out through the drainage hole 18 after being temporarily stored at its bottom, and is accurately introduced into the water inlet hole 14 of the counterweight box 8 through the conduit 19. This solves the problems of small rainwater collection range and inaccurate guidance.

[0029] like Figure 7 、 Figure 9 and Figure 12As shown, in this embodiment, a groove 12 is formed at the upper end of the bottom sealing plate 7, and a stop block 13 is provided in the groove 12. The stop block 13 is made of a water-absorbing and expanding material. A through hole 10 is formed at the bottom of the counterweight box 8. Rainwater can flow into the bottom sealing plate 7 through the through hole 10 and be absorbed by the stop block 13, thereby increasing the volume of the stop block 13 to prevent strong wind from acting on the first plate 6 and causing it to accidentally reset and open the vent 2. The adoption of the above-mentioned technical solution can prevent the risk that the weight-added closing mechanism may be forced to open in extremely windy weather, especially when the wind is strong, which produces a double insurance and enhances the stability of the mechanism in bad weather. Specifically, its working principle is to provide a second line of wind and rain protection. During operation, a small amount of rainwater that seeps into or flows out through the bottom through hole 10 of the counterweight box 8 drops onto the bottom sealing plate 7 and is absorbed by the stop block 13, and its volume rapidly expands and increases. If a strong wind attempts to blow open the closed first plate 6, the expanded stop block 13 will physically block its opening path to prevent it from being accidentally blown open.

[0030] like Figure 8 and Figure 10 As shown, in this embodiment, the water reservoir 16 is provided with a filter plate 20 at the water inlet 17 , and the filter plate 20 is used to prevent debris other than rainwater from entering the water reservoir 16 ; The adoption of the above technical solution can ensure the long-term smooth flow of water storage and water diversion processes, improve system reliability and reduce maintenance requirements. Specifically, its working principle is to prevent debris from clogging the system through physical filtration. During operation, rainwater must first pass through the filter plate 20 before entering the water reservoir 16, and debris such as leaves, bird droppings, and dust are blocked out, which solves the risk of failure of the rainwater collection system due to clogging by debris.

[0031] like Figure 9 and Figure 12 As shown, in this embodiment, a hard plate 28 is provided at the upper end of the stop block 13. A guide hole 29 is provided on the surface of the hard plate 28 so that when the stop block 13 absorbs water and expands, the hard plate 28 can be driven to rise to a preset height, thereby blocking the opening path of the first plate 6 and preventing the first plate 6 from opening the vent 2. The adoption of the above technical solution can improve the blocking effect of the first plate body 6, enhance durability, and does not affect the collection of rainwater by the stop block 13. Specifically, its working principle is to optimize the performance and reliability of the stop mechanism. During operation, the stop block 13 absorbs water and expands, pushing up the hard plate 28. The guide hole 29 allows rainwater to flow smoothly and be absorbed by the stop block 13. At the same time, the hard plate 28 provides a hard and flat blocking surface. When the first plate body 6 attempts to open, its inner side will hit the hard plate 28 instead of the soft stop block 13 itself. This solves the problem that the stop block 13 itself may have poor blocking effect or be easily damaged due to its soft material.

[0032] like Figure 9 and Figure 12 As shown, in this embodiment, a raised portion 9 is provided at the bottom of the counterweight box 8. The cross section of the raised portion 9 is an arc-shaped structure, and the lowest point of the raised portion 9 is lower than the height of the hard plate 28 after it rises; The adoption of the above technical solution can ensure that when the counterweight box 8 is in the closed state, its bottom will not compress or interfere with the raised hard plate 28, affecting the normal performance of the stop function, thereby ensuring a double insurance mechanism, that is, the weight increase closure and the stop blocking can work together without interfering with each other. Specifically, its working principle is to prevent interference through structural design. During operation, the arc-shaped protrusion 9 ensures that the lowest point of the box bottom is always lower than the height of the hard plate 28 after expansion and rise.

[0033] like Figure 3 、 Figure 4 and Figure 5 As shown, in this embodiment, the wall 1 is provided with a second plate 3 at the vent 2. The second plate 3 has an openable and closable window, and a mezzanine space for air circulation is formed between the second plate 3 and the first plate 6. The above technical solution can realize the intelligent management of building curtain wall ventilation, give users ultimate control, and improve comfort and energy saving effects. Specifically, its working principle is to construct a double-layer curtain wall ventilation system. During operation, the first plate 6 serves as the outer intelligent adaptive air outlet, automatically adjusting the ventilation of the mezzanine space according to wind and rain conditions; users can manually open and close the windows of the second plate 3 as needed, and ultimately control whether the airflow enters the room. This solves the problem that a single vent 2 cannot take into account both intelligent rain protection and user active regulation.

[0034] like Figure 1 、 Figure 2 and Figure 3 As shown, in this embodiment, a main bracket 4 is installed on the surface of the wall 1, and the main bracket 4 is rotatably connected to the first plate 6 by a hinge 5. In addition, the main bracket 4 is also connected to a sub-bracket 15, and the sub-bracket 15 is used to be fixedly connected to the water reservoir 16. The wall 1 is provided with side sealing plates 27 on both sides of the first plate 6. At the same time, the wall 1 is also provided with a top sealing plate 26 on the top of the first plate 6. The top sealing plate 26, the side sealing plates 27 and the bottom sealing plate 7 together constitute an annular drainage channel structure to guide the ventilation airflow to the interlayer space between the second plate 3 and the first plate 6; The above technical solution can solve the problems of inconvenient scattered installation and loose structure of various components of the opening and closing mechanism on the curtain wall, realize modular integrated installation, and improve installation accuracy and efficiency. Specifically, its working principle is to use the rigid main bracket 4 and auxiliary bracket 15 as the core load-bearing and connection platform to integrate the moving first plate 6, water reservoir 16 and external air deflector into a whole, so as to ensure the stability and reliability of the mechanism. During operation, the main bracket 4 is first fixed to the surface of the wall 1, and the first plate 6 is connected to it by the hinge 5, so as to achieve stable and reliable rotation; the auxiliary bracket 15 extends from the main bracket 4 to provide the water reservoir 16 with a suspended fixed support away from the wall, ensuring its optimal angle and efficiency in collecting rainwater; finally, the annular air deflector formed by the top sealing plate 26, the side sealing plate 27 and the bottom sealing plate 7 connected end to end tightly encloses the first plate 6 and the second plate 3, and together constitutes an annular drainage channel with optimized cross-section.

[0035] like Figure 6 As shown, in this embodiment, an elastic buffer pad 32 is provided on one side of the counterweight box 8 close to the second plate 3 or the wall 1; The above technical solution can improve the service life of the structure. Specifically, the principle is that an elastic buffer pad 32 made of rubber or silicone material is adhered to the contact surface of the counterweight box 8. The elastic cushion pad 32 absorbs collision energy through its elastic deformation, preventing damage to the surface of the counterweight box 8 caused by the frequent movement of the first plate 6. At the same time, the wear and noise caused by mechanical collision are eliminated through simple structural improvements, thereby enhancing the reliability of the system and user experience. like Figure 13 and Figure 14 As shown, in this embodiment, the surface of the first plate body 6 is provided with ventilation holes 30 that pass through the front and back surfaces thereof, and the ventilation holes 30 and the ventilation opening 2 form an air flow channel for exchanging indoor air with external air. There are multiple ventilation holes 30 and they are arranged at intervals along the width direction of the first plate body 6. The upper end of the bottom sealing plate 7 is provided with a shielding plate 31 that is adapted to the ventilation holes 30. The shielding plate 31 is configured as follows: when the first plate body 6 and the bottom sealing plate 7 are in contact with each other, that is, the ventilation opening 2 is in a closed state, the ventilation holes 30 are blocked by the shielding plate 31, and the air flow channel is closed, thereby preventing air from entering the ventilation opening 2 through the ventilation holes 30; when the first plate body 6 and the bottom sealing plate 7 are disengaged, that is, the ventilation opening 2 is in an open state, the ventilation holes 30 and the shielding plate 31 are staggered front and back, and the air flow channel is opened, so that indoor and outdoor air can flow freely; The above technical solution can solve the problem of insufficient ventilation of the first plate body 6 at a very small opening. The ventilation holes 30 provide additional air volume at the initial opening of the first plate body 6, which significantly improves the response characteristics of the ventilation system and the ventilation efficiency at low wind speeds. At the same time, since the first plate body 6 is provided with multiple ventilation holes 30, a plate structure similar to a hollow shape is formed, which solves the problem that the traditional solid plate body is too heavy, resulting in high load on the opening and closing mechanism, delayed response and high material cost. The lightweight design brings multiple benefits: First, the opening torque required to drive the first plate body 6 to rotate, i.e. the first torque, is reduced, so that the selection of the spring 25 can be smaller and more economical, which improves energy efficiency; second, the load on the rotating connection structure, i.e. the hinge 5, is reduced, and the durability and reliability of the system are improved; third, the amount of plate used to manufacture the first plate body 6 is directly reduced, which reduces the cost of raw materials and the overall weight of the product, and has significant economic benefits.

[0036] like Figure 9 As shown, in this embodiment, the counterweight box 8 consists of a box cover and a box body, and the box cover and the box body are connected in a detachable manner, such as a bolt connection or a snap connection, and the weight block 11 is detachable from the box body. At the same time, the stop block 13 is also detachably embedded in the groove 12 on the surface of the bottom cover plate 7, so that maintenance personnel can regularly replace the stop block 13 and the weight block 11, which are vulnerable parts, through the vent 2 of the wall 1; The adoption of the above technical solution can reduce the maintenance cost of the system throughout its life cycle and extend the service life of the product. Specifically, its core working principle is to design easily consumable or functional components, namely the weight block 11 and the stop block 13 and their container counterweight box 8, into modular units that can be disassembled and assembled from the back of the system. During operation, the maintenance personnel only need to close the first plate 6. At this time, the groove 12 on the counterweight box 8 and the bottom cover 7 is exposed through the vent 2. The buckle or screw of the counterweight box 8 can be loosened by hand or with simple tools, and the box cover can be opened to replace the internal weight block 11. Similarly, the old stop block 13 can be directly taken out of the groove 12 and a new stop block 13 can be placed in. This solves the high cost and low efficiency problem of needing to dismantle a large area of ​​curtain wall for replacement after the entire system fails due to the expiration of the life of the water-absorbing material or the degradation of its performance.

[0037] It should be understood by those skilled in the art that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Within the scope of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0038] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, 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. An opening and closing mechanism for curtain wall environment adaptive vents, characterized in that: include: A rotating connection structure, used for rotating the first plate (6) to connect it to the vent (2) of the wall (1); an opening structure, acting on the first plate (6), for continuously applying a first torque driving the first plate (6) to rotate in a direction of opening the vent (2), so that the vent (2) tends to be in a normally open state; The water-increasing weight device is arranged on the first plate body (6) and is at least partially composed of a water-absorbing material. When it comes into contact with rainwater, it increases its own weight to generate a second torque that drives the first plate body (6) to rotate in the direction of closing the vent (2). The second torque is opposite to the direction of the first torque, and the magnitude of the second torque increases with the increase of the water absorption.

2. The curtain wall environment adaptive vent opening and closing mechanism according to claim 1, characterized in that: The rotating connection member comprises a hinge or a hinge (5).

3. The curtain wall environment adaptive vent opening and closing mechanism according to claim 2, characterized in that: The water-increasing weight device comprises a weight-increasing block (11) made of a highly absorbent resin, a sponge or a water-swelling rubber.

4. The curtain wall environment adaptive vent opening and closing mechanism according to claim 3, characterized in that: The opening and closing mechanism further comprises a limiting structure for limiting the maximum closing angle of the first plate body (6).

5. The curtain wall environment adaptive vent opening and closing mechanism according to claim 4, characterized in that: The limiting structure comprises a bottom sealing plate (7) which is arranged on the wall (1), and the inner side of the bottom sealing plate (7) is in conflict with the outer side of the first plate (6).

6. The curtain wall environment adaptive vent opening and closing mechanism according to claim 5, characterized in that: The opening structure includes: A sleeve (21) is provided on the bottom sealing plate (7), and a sliding cavity is formed inside the sleeve (21); A push plate (24), one end of which is slidably disposed in the sliding cavity and the other end of which is fixedly connected to a slide rod (22), one end of which passes through a slide groove (23) provided on the surface of the bottom sealing plate (7); A spring (25) is provided in the sliding cavity and in contact with the push plate (24), and is used to apply a thrust to the push plate (24) to drive the push plate (24) to drive the slide rod (22) to extend out of the slide groove (23), thereby pushing the first plate (6) to rotate in the direction of opening the vent (2) through the slide rod (22).

7. The curtain wall environment adaptive vent opening and closing mechanism according to claim 6, characterized in that: The water-increasing weight device also includes: A counterweight box (8) is formed with a space for placing a weight block (11) therein, and a water inlet hole (14) is provided at the upper end of the counterweight box (8); A water storage structure is used to collect rainwater and guide the rainwater into the water inlet hole (14) to increase the weight of the weight-added block (11).

8. The curtain wall environment adaptive vent opening and closing mechanism according to claim 7, characterized in that: The water storage structure comprises a water reservoir (16) with a water inlet (17) provided on its surface, a drainage hole (18) provided at the bottom of the water reservoir (16), and a conduit (19) for transporting rainwater provided between the drainage hole (18) and the water inlet (14).

9. The curtain wall environment adaptive vent opening and closing mechanism according to claim 8, characterized in that: A stop block (13) is provided at the upper end of the bottom sealing plate (7), and the stop block (13) is made of a water-absorbing and expanding material. A through hole (10) is provided at the bottom of the counterweight box (8), and rainwater can flow into the bottom sealing plate (7) through the through hole (10) and be absorbed by the stop block (13), thereby increasing the volume of the stop block (13) to prevent strong wind from acting on the first plate body (6) and causing it to accidentally reset and open the vent (2).

10. The curtain wall environment adaptive vent opening and closing mechanism according to claim 8, characterized in that: The water reservoir (16) is provided with a filter plate (20) at the water inlet (17), and the filter plate (20) is used to prevent debris other than rainwater from entering the water reservoir (16).

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