An externally mounted sealed window for a grain bin

Abstract

The utility model discloses a kind of externally-hung granary sealing windows, including window frame and window sash that can be opened and closed and installed on window frame, predetermined dimensional relationship between window frame and granary window hole, so that window frame can be installed in the way of covering the window hole externally-hung;It also includes linkage execution device for driving window sash to execute opening and closing and opening and closing lock action relative to window frame;Linkage execution device includes linear driver, locking mechanism, opening and closing mechanism and transmission mechanism, linear driver is linked with locking mechanism and opening and closing mechanism simultaneously by transmission mechanism.The utility model has the characteristics of convenient installation, strong versatility, excellent heat insulation performance, and can optimize transmission path through linkage execution device, abandon the dependence on large torque reduction motor, to more efficient, simplified and reliable mechanism, synchronously and reliably solve the opening and closing and opening and closing lock problem of window sash.

Description

Technical Field

[0001] This utility model belongs to the field of warehouse building doors and windows technology, specifically relating to an externally mounted grain warehouse sealing window. Background Technology

[0002] As an important facility for storing grain, the stability of the internal environment of a grain silo directly affects the safety and quality of the stored grain. Sealed windows are a key component of the grain silo structure, serving a dual function: under normal circumstances, they must act as a reliable airtight and heat-insulating barrier, isolating the external humid and hot environment to maintain a stable, temperature-controlled, and dry grain storage environment; at specific times, they also need to be able to be opened to achieve controlled ventilation.

[0003] However, existing grain silo sealing windows have the following significant drawbacks in practical applications: I. Inherent Defects in Installation Methods and Thermal Insulation Performance Regarding installation methods: most existing grain silo sealing windows are recessed, meaning the window frame is directly embedded in the grain silo window opening. This structure requires the sealing windows to be customized according to the specific dimensions of each window opening, resulting in poor versatility. This not only increases production costs but also causes great inconvenience and low efficiency for on-site installation. Regarding thermal insulation performance: Existing sealed windows primarily use metal for the sashes and frames, and no effective thermal break is installed between their inner and outer structures. Due to the inherent high thermal conductivity of metal, in hot summer weather, the external structure of the sash and frame, rapidly heated by sunlight, forms a continuous heat conduction path with the internal structure, creating a significant "thermal bridge" effect. This allows external heat to be quickly conducted into the grain silo without hindrance through the metal components, severely disrupting the constant temperature environment required for grain storage and greatly increasing the risk of grain damage. Especially in southern regions, refrigeration equipment frequently operates at high loads to maintain a constant temperature environment inside the silo, resulting in enormous energy waste.

[0004] II. Defects in the actuators for opening and closing window sashes and locking / unlocking actions To achieve automated control of sealed windows, existing technologies (such as electrically driven side-hinged casement sealed windows for grain silos) typically employ two independent actuators, one responsible for opening and closing the window sash and the other for locking and unlocking. This separate approach has the following inherent drawbacks: Regarding window sash opening and closing: Currently, the "direct drive" actuator is commonly used, which directly drives the window sash shaft through a motor reducer. When the window sash is subjected to wind load, its opening and closing resistance torque increases sharply, forcing the motor reducer to provide a very large output torque. This necessitates the selection of a high-torque geared motor, which not only significantly increases equipment costs but also causes a substantial increase in operating energy consumption. Secondly, a sealing strip is installed around the inner perimeter of the window sash. When closing the window, the resistance of this sealing strip must be overcome to compress and deform it, forming a continuous and reliable airtight barrier around the entire perimeter. Because the window sash has a single-sided pivot structure, the farther the sealing strip is from the pivot, the greater the resistance torque that needs to be overcome when closing the window. Especially in the side areas of the window sash far from the pivot, the torque output of the motor required to compress the sealing strip will increase significantly. Typically, only a high-torque geared motor can provide sufficient thrust at the end of the window sash closing, allowing the window sash to fully close to the predetermined position and evenly and fully compress the sealing strip.

[0005] Regarding window sash opening and closing: Currently, the window sash opening and closing action is generally achieved using a gear-rack mechanism controlled by another drive motor. In the final stage of window sash locking, the latch needs to apply a large thrust to the window sash to push it towards the window frame, so that the window sash is fully closed and in place, thereby continuously compressing the sealing strip. Since the output thrust of the gear-rack mechanism is directly related to the output torque of the drive motor, a high-torque geared motor must also be configured to meet the above thrust requirements, resulting in a significant increase in equipment cost and energy consumption; Secondly, in the final stage of window sash locking, if significant resistance is encountered, the drive motor needs to continuously output large torque, which can easily cause overheating and burn out due to overload. This poses a high risk of overheating and burning out, and if it does, it will directly lead to the failure of the entire locking system.

[0006] Furthermore, the two sets of actuators for opening and closing the window sash and for locking and unlocking are completely independent, which inevitably leads to a complex overall structure, a large number of components, high manufacturing costs, and cumbersome control logic.

[0007] In summary, there is an urgent need in this field for an innovative and integrated technical solution that can fundamentally address the structural and functional deficiencies in existing technologies. An ideal new type of grain silo sealing window should be easy to install, highly versatile, and possess excellent thermal insulation performance. Simultaneously, through an integrated, interconnected design, it should optimize the transmission path, eliminate reliance on high-torque geared motors, and use a more efficient, streamlined, and reliable mechanism to simultaneously and reliably solve the problems of window opening and closing, as well as locking and unlocking. Utility Model Content

[0008] This utility model provides an external grain silo sealing window, which aims to solve the problems of inconvenient installation, poor versatility, and the series of problems caused by the separate actuator in the prior art.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an externally mounted grain warehouse sealing window, comprising a window frame and a window sash that can be opened and closed and installed on the window frame, wherein the window frame and the grain warehouse window opening have a predetermined dimensional relationship, so that the window frame can be externally mounted in a manner that covers the window opening; It also includes a linkage actuator for driving the window sash to perform opening, closing, and locking / unlocking actions relative to the window frame; the linkage actuator includes a linear actuator, a locking mechanism, an opening / closing mechanism, and a transmission mechanism, wherein the linear actuator is simultaneously linked with the locking mechanism and the opening / closing mechanism through the transmission mechanism; The transmission mechanism is configured to decompose a single unidirectional linear motion of the linear actuator into sequential driving of the locking mechanism and the opening / closing mechanism; when closing, the opening / closing mechanism is driven first to perform a window closing action, and then the locking mechanism is driven to perform a locking action; when opening, the locking mechanism is driven first to perform an unlocking action, and then the opening / closing mechanism is driven to perform a window opening action.

[0010] As a limitation of this utility model, the transmission mechanism includes a first delay transmission component and a second delay transmission component; The first delay transmission member is driven between the linear driver and the opening / closing mechanism, and has a first free stroke; the second delay transmission member is driven between the linear driver and the locking mechanism, and has a second free stroke. The first idle stroke and the second idle stroke are configured to alternately engage and disengage power transmission during a single unidirectional linear motion of the linear actuator, thereby achieving sequential driving of the locking mechanism and the opening / closing mechanism.

[0011] As a further limitation of this utility model, the first delay transmission component includes a pusher frame and a first push-pull rod; The pusher frame is slidably assembled into the housing of the opening and closing mechanism along a preset trajectory; The first push-pull rod is linked to the linear actuator and slides along the push frame; A first positioning pin is fixedly provided on the first push-pull rod; a first slide groove extending along its sliding direction is correspondingly provided on the push frame, and the first positioning pin is slidably assembled in the first slide groove. The sliding stroke of the first positioning pin within the first groove constitutes the first empty stroke.

[0012] As a further definition of this utility model, the first groove has a first stroke end point and a second stroke end point; A first compression spring in a compressed state is fitted between the first push-pull rod and the push frame. The first compression spring applies a force to the push frame so that the first stroke end point has a tendency to maintain constant contact with the first positioning pin. When the first positioning pin remains in contact with the first stroke end point, the linear actuator drives the opening and closing mechanism through the first delay transmission component; When the first positioning pin moves between the first stroke end point and the second stroke end point, the linear drive drives the locking mechanism through the second delay transmission member.

[0013] As a further limitation of this utility model, the pusher frame is provided with a second slide groove perpendicular to the first slide groove; It also includes a locking component for locking the first positioning pin; the locking component includes: A retainer is fixed to the housing. The retainer is provided with a guide groove, which includes a long slide and a rotary slide communicating with the long slide. The locking plate has a third sliding groove through which the first positioning pin passes. A locking rod is fixed on the lower surface of the locking plate, and at least two positioning pins are fixed on the upper surface. The locking rod is slidably assembled in the second sliding groove, and all the positioning pins are slidably assembled in the guide groove. A tension spring, connected between the locking rod and the push frame, is used to provide a pulling force to the locking rod that tends to pull the locking plate toward the unlocked position; When all the positioning pins are located in the long slide, the locking piece is in the locked position. At this time, the extension direction of the third slide groove is perpendicular to the extension direction of the first slide groove, so as to prevent the first positioning pin from sliding in the first slide groove. When one of the positioning pins falls into the rotating slide, the locking plate is in the unlocked position. At this time, the locking plate can swing back and forth relative to the push frame, providing a channel for the first positioning pin to slide in the first slide groove, thereby performing the first empty stroke.

[0014] As a further definition of this utility model, the opening and closing mechanism includes a rack and a gear that mesh with each other; the rack is fixedly installed on the pusher frame, and the gear is fixedly installed on the rotating shaft of the window sash.

[0015] As a further limitation of this utility model, the second delay transmission component includes a second push-pull rod and a first motion direction conversion component; The first motion direction conversion component includes a first mounting bracket, a third push-pull rod slidably mounted on the first mounting bracket, and a first swing plate rotatably mounted on the first mounting bracket. The first swing plate is linked with the third push-pull rod and the locking mechanism respectively, and is used to convert the linear motion of the third push-pull rod into the reciprocating linear motion that drives the locking mechanism. An elastic reset member is provided between the third push-pull rod and the first mounting bracket for providing a reset force to the third push-pull rod; The second push-pull rod is linked to the linear actuator and slidably connected to the third push-pull rod; The relative sliding stroke between the second push-pull rod and the third push-pull rod constitutes the second free stroke.

[0016] As a further limitation of this utility model, the locking mechanism includes at least one locking tongue assembly; the locking tongue assembly includes a locking tongue bracket, a transmission link and at least one actuating component; The transmission link is slidably mounted on the locking tongue frame and is linked with the first swing plate to receive linear driving force; The actuating components include a second swing plate rotatably mounted on the latch frame and a latch slidably mounted on the latch frame; The second swing plate is linked with the latch and the transmission link respectively, and is used to convert the linear driving force received by the transmission link into a linear force perpendicular to the linear driving force, so as to drive the latch to perform an extension or retraction movement.

[0017] As a further limitation of this utility model, when the locking mechanism includes at least two of the latch assemblies, the at least two latch assemblies are configured to be hidden on adjacent or opposite sides of the window frame. The latch assemblies distributed on different sides are linked together by a second motion direction conversion assembly; The second motion direction conversion assembly includes a second mounting bracket and a third swing plate rotatably mounted on the second mounting bracket; the third swing plate is linked with the transmission linkage of the latch assembly on different sides to convert the direction of the linear driving force received by one latch assembly and transmit it to the adjacent latch assembly.

[0018] As another limitation of this utility model, it also includes a frame-shaped base plate and partition plate. The base plate, the partition plate and the window frame are all provided with mounting holes and are configured to achieve alignment and fixed connection of the three by fasteners passing through these mounting holes. The base plate is used to contact the outer wall of the grain silo; the partition is a heat insulation material and is sandwiched between the window frame and the base plate to form a thermal break structure between the window frame and the base plate.

[0019] As a third limitation of this utility model, the window sash is a window sash with a thermal break structure, including: A panel having a front panel and a peripheral portion vertically connected to the periphery of the front panel; The back panel is disposed opposite to the front panel and forms a cavity with the front panel and the peripheral side portion; An insulation layer is filled into the cavity; The profile, made of heat-insulating material, is connected between the periphery of the back panel and the peripheral side, forming a thermal break structure between the panel and the back panel.

[0020] As a further limitation of this utility model, a sealing groove is machined along the length direction on the outer side of the profile; a sealing strip is embedded in the sealing groove, and the sealing strip protrudes from the back plate.

[0021] By adopting the above-mentioned technical solution, the beneficial effects achieved by this utility model compared with the prior art are as follows: (1) This utility model is easy to install and highly versatile: It adopts an external modular design, which does not require precise embedding into the window opening. Only a few standard sizes need to be produced to adapt to window openings of various sizes, which is highly versatile. In addition, through the base plate structure, the lightweight base plate can be positioned, leveled and fixed separately at the window opening first, and then the heavy window frame body can be installed with the base plate as a reference, which greatly simplifies the installation process, saves time and effort, and reduces the workload and installation cost.

[0022] (2) This utility model achieves integrated control of the opening and closing and locking / unlocking actions of the window sash by adopting a linkage actuator, completely abandoning the design concept that requires two independent actuators in the traditional electric drive side-shaft casement scheme. This integrated design reduces the use of drive components, effectively reduces manufacturing costs and the complexity of the control system logic, significantly improves the reliability of equipment operation, and provides a better solution for the opening and closing and locking / unlocking control of grain warehouse sealed windows.

[0023] (3) In this utility model, the linkage actuator uses a linear actuator (such as an electric push rod or a hydraulic push rod) as a single drive source. The thrust provided by this type of actuator far exceeds that of a geared motor of the same power, easily meeting the huge torque and thrust required for opening, closing and locking the sealed window. Secondly, the linear actuator has a simple structure, and under the condition of providing the same thrust, its cost is lower than that of the drive motor, and the requirement for drive power is smaller, thus significantly reducing equipment cost and operating energy consumption. In addition, the linear actuator is less prone to failures such as motor burnout due to overload or jamming, greatly improving its operational reliability.

[0024] (4) This utility model achieves the mandatory sequential actions of "closing the window first and then locking it" and "unlocking the window first and then opening it" through the innovative pure mechanical structure design of the first and second delay transmission components in the linkage execution device. This mechanical structure-based sequential control logic completely avoids the risks of program errors and sensor failures that may occur in the electronic control system, ensuring the absolute accuracy of the action execution and the reliability of the system.

[0025] (5) In the first delayed transmission component of the linkage execution device, this utility model forms a unique double-locking stable structure by cleverly setting a first compression spring and a locking component. When performing the window sash opening and closing action, this design can lock the position of the first positioning pin, preventing the first positioning pin from sliding unexpectedly in the first slide groove, thereby enabling the window sash to effectively resist external interference such as wind load, maintain the stability of the window sash when opening and closing, avoid the window sash from shaking violently, and greatly improve the system's adaptability under adverse weather conditions.

[0026] (6) This utility model constructs a complete circumferential balanced pressing system by rationally distributing multiple locking tongue components on each side of the window frame. This distributed layout ensures the uniform distribution of pressing force around the window sash, enabling the entire sealing strip to obtain a consistent and sufficient amount of compression, completely eliminating the sealing dead angle problem caused by traditional single-point or few-point pressing methods; secondly, this distributed design allows the pressing load to be evenly distributed, effectively avoiding local stress concentration, significantly improving the reliability of the sealing system, and extending the service life of the sealing strip; in addition, multi-point coordinated pressing can effectively compensate for the adverse effects caused by manufacturing tolerances, installation errors, and long-term deformation of the window sash or window frame, ensuring that the sealing system can maintain a stable and reliable sealing effect under various working conditions. This scientific layout scheme not only achieves reliable sealing in all directions, but also greatly improves the fatigue resistance and long-term stability of the system.

[0027] (7) The window sash of this utility model innovatively adopts a thermal break structure with thermal insulation profile as the core. That is, taking advantage of the characteristic that thermal insulation materials (such as plastics) have extremely low thermal conductivity compared to metals, a profile made of thermal insulation material is set at the connection between the periphery and the back panel, which effectively blocks the heat conduction path caused by direct contact between metals (front panel → periphery → back panel). Combined with the foamed thermal insulation material filled in the cavity, the efficiency of external heat transfer to the interior of the granary through the window sash is significantly reduced, achieving excellent thermal insulation performance.

[0028] (8) This utility model constructs a multi-layered and systematic thermal break system. That is: Window sash thermal break: The window sash adopts an innovative thermal break design, which connects the back panel and the perimeter through low thermal conductivity connectors and is filled with high-efficiency thermal insulation material, forming a core thermal break layer that blocks heat transfer. Window frame-base plate partition: The thermal insulation material partition is sandwiched between the window frame and the base plate, forming the first auxiliary thermal break to prevent heat transfer from the window frame to the building structure; Window sash-frame sealing thermal break: When the window sash is closed, its sealing strip is tightly pressed against the partition, effectively sealing the gap between the window sash and the window frame, realizing a reliable isolation between the inside of the grain warehouse and the external environment, forming a second auxiliary thermal break to prevent external heat from being transferred to the inside of the grain warehouse through the gap. The combined effect of multiple design elements, with layers of defense, completely cuts off the main heat transfer channels from the external environment to the inside of the grain warehouse. Attached Figure Description

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0030] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the disassembled structure of an embodiment of the present utility model; Figure 3 This is a schematic diagram of the disassembled structure of the window sash in an embodiment of the present utility model; Figure 4 This is a schematic diagram showing the disassembled structure of the window frame, bottom plate, and partition in an embodiment of this utility model; Figure 5 This is a front view of the structural relationship between the window sash and the window frame in an embodiment of this utility model; Figure 6 This is a longitudinal section diagram of the window sash, window frame, bottom plate and partition in an embodiment of the present utility model (the window sash is in the closed state). Figure 7 This is a partially enlarged longitudinal section view of the window sash, window frame, bottom plate, and partition in an embodiment of this utility model. Figure 8 This is a schematic diagram of the cross-section of the window sash, window frame, bottom plate and partition in an embodiment of this utility model (the window sash is in the closed state, and the temperature measuring unit is shown in the figure). Figure 9 This is a partially enlarged cross-sectional view of the window sash, window frame, bottom plate, and partition in an embodiment of this utility model. Figure 10 This is a three-dimensional sectional view of the window sash, window frame, bottom plate and partition in an embodiment of the present utility model (the window sash is in a slightly open state). Figure 11 This is a partially enlarged three-dimensional sectional view of the window sash, window frame, bottom plate, and partition in an embodiment of this utility model. Figure 12 This is a schematic diagram of the linkage execution device in an embodiment of the present utility model; Figure 13 This is a schematic diagram of the transmission mechanism of the linkage execution device in the embodiment of this utility model; Figure 14 This is a top view of the structural relationship of the first delay transmission component in the closed window state according to an embodiment of the present invention (the locking component is not shown in the figure). Figure 15 This is a top view of the structural relationship of the first delay transmission component in the open window state according to an embodiment of the present invention (the locking component is not shown in the figure). Figure 16 This is a top view of the structural relationship of the first delay transmission component in the closed window state according to an embodiment of the present invention (the locking component is shown in the figure). Figure 17 This is a perspective view of the structural relationship of the first delay transmission component in the closed window state according to an embodiment of the present invention (the locking component is shown in the figure). Figure 18 and Figure 19 The following are perspective views showing the structural relationship of the first delay transmission component at different window opening angles in the window opening state according to the embodiments of the present invention (the locking component is shown in the figure). Figure 20 This is a schematic diagram of the second delay transmission component in an embodiment of the present invention from a first perspective; Figure 21 This is a schematic diagram of the second delay transmission component in an embodiment of the present invention from a second perspective; Figure 22 This is a schematic diagram of the locking mechanism in the locked state in an embodiment of the present invention; Figure 23 This is a schematic diagram of the locking mechanism in the locked state from another perspective in an embodiment of this utility model; Figure 24 This is a schematic diagram of the locking mechanism in the unlocked state in an embodiment of this utility model; Figure 25 This is a schematic diagram of the assembly structure of the linkage execution device on the window frame and window sash in an embodiment of the present utility model (window closed state). Figure 26 This is a schematic diagram of the assembly structure of the linkage execution device on the window frame and window sash in the embodiment of this utility model (window open state).

[0031] In the diagram: 1. Window sash; 2. Window frame; 3. Base plate; 4. Partition; 5. Gap; 6. Linkage actuator; 7. Rotating shaft; 8. Bearing; 9. Hinge; 10. Area A; 11. Window opening; 12. Housing; 101. Panel; 102. Back panel; 103. Insulation layer; 104. Profile; 105. Sealing strip; 106. Support frame; 107. Filling layer; 108. First temperature measuring unit; 109. Second temperature measuring unit; 201. Linear actuator; 202. Locking mechanism; 203. Opening and closing mechanism; 204. Transmission mechanism; 205. First delay transmission component; 206. Second delay transmission component; 301. Push frame; 302. First push-pull rod; 303. First guide rail; 304. Housing; 305. First positioning pin; 306. First slide groove; 307. First compression spring; 308. Second slide groove; 309. Cage; 310. Locking plate; 311. Guide groove; 312. Long slide rail; 313. Rotary slide rail; 314. Third slide groove; 315. Locking rod; 316. Positioning pin; 401. Second push-pull rod; 402. First mounting bracket; 403. First swing plate; 404. Second compression spring; 405. Third push-pull rod; 501. Rack; 502. Gear; 601. Locking tongue bracket; 602. Transmission link; 603. Second swing plate; 604. Locking tongue; 605. First guide groove; 606. Second guide groove; 607. Second guide rail; 608. Second motion direction conversion assembly. Detailed Implementation

[0032] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0033] This embodiment discloses an externally mounted grain silo sealing window, such as... Figures 1 to 2 As shown, it includes a window sash 1, a window frame 2, a base plate 3, a partition 4, and a linkage actuator 6.

[0034] 1. Window sash Window sash 1 is a window sash with a thermal break structure, which is rotatably assembled onto window frame 2. In this embodiment, window sash 1 is rotatably assembled with window frame 2 through a set of rotating connection mechanisms. Specifically, as follows... Figure 5 As shown, the rotating connection mechanism includes a rotating shaft 7, at least a pair of bearings 8, and at least one hinge 9. The rotating shaft 7 is rotatably supported on the window frame 2 via the bearings 8, and the hinge 9 is fixedly connected to both the rotating shaft 7 and the window sash 1, thereby converting the opening and closing action of the window sash 1 into the rotational motion of the rotating shaft 7. This rotating connection mechanism is existing technology and ensures the smooth and stable opening and closing operation of the window sash 1.

[0035] refer to Figure 3 The window sash 1 has a front panel 101 and a back panel 102 arranged opposite to each other. The front panel 101 faces outwards from the grain silo during installation, while the back panel 102 faces inwards from the grain silo interior. Both the front panel 101 and the back panel 102 are made of metal, such as aluminum alloy or steel plate. An insulation layer 103 is filled in the cavity formed between the front panel 101 and the back panel 102. This insulation layer 103 can be rigid polyurethane foam or other high-performance insulation materials, and its main function is to enhance the overall thermal insulation performance of the window sash 1.

[0036] In this embodiment, the window sash 1 adopts a thermal break structure with a heat-insulating profile 104 as its core. Utilizing the characteristic that heat-insulating materials (such as PVC, nylon, polytetrafluoroethylene, hard rubber, carbon fiber, etc.) have extremely low thermal conductivity compared to metal, a heat-insulating profile 104 is provided at the connection between the panel 101 and the back panel 102. This effectively blocks the heat conduction path caused by direct metal contact. Combined with the insulation layer 103 filling the cavity, the efficiency of external heat transfer to the grain silo through the window sash 1 is significantly reduced.

[0037] Specifically, panel 101 includes a rectangular front panel 101 and a peripheral side portion vertically connected to the periphery of the front panel 101. In a preferred embodiment, the peripheral side portion is an integral structure formed by bending and extending the periphery of the front panel 101 in one piece through stamping or other methods, thereby forming a box-shaped structure with a receiving space together with the front panel 101; The back panel 102 is disposed opposite to the front panel 101 of the front panel 101, and its edge portion is engaged with the end of the peripheral portion of the front panel 101 through the profile 104, thereby forming a closed cavity together with the front panel 101 and the peripheral portion. The insulation layer 103 fills the aforementioned cavity, and its function is to significantly reduce the heat conduction performance of the window sash 1. In this embodiment, the insulation layer 103 includes a support frame 106 placed within the cavity and a filling layer 107 filling the area around the support frame 106. The support frame 106 can be composed of a metal or plastic frame and a "star" or "grid" shaped support structure connected inside the frame, mainly used to maintain the basic shape of the cavity and provide structural strength. The filling layer 107 is a foamed insulation material. In this embodiment, the filling layer 107 is rigid polyurethane foam, which, after foaming and curing, forms an insulation core layer with extremely low thermal conductivity and a certain structural strength. Flame retardants can be mixed into the filling layer 107 to give it flame-retardant properties, depending on the actual situation.

[0038] Profile 104 is made of a low thermal conductivity insulating material (such as PVC, nylon, polytetrafluoroethylene, hard rubber, carbon fiber, etc.). It is connected between the periphery of the back panel 102 and the end of the periphery of the panel 101 via mechanical connection or snap-fit. Profile 104 achieves a contactless connection between the back panel 102 and the periphery of the panel 101. Because the thermal conductivity of profile 104 is much lower than that of metal, it effectively blocks the direct heat conduction path between the metal front panel 101 → metal periphery → metal back panel 102, forming a highly efficient "broken bridge" structure. In this embodiment, profile 104 is connected between the periphery of the back panel 102 and the end of the periphery of the panel 101 via snap-fit. The cross-sectional shape of profile 104 is referenced. Figure 7 or Figure 9It has a right-angle portion on one side for abutting against the end of the periphery of the panel 101, and a slot portion on the other side for inserting into the periphery of the back panel 102.

[0039] Furthermore, a groove-shaped sealing groove is machined along the length of the outer surface of the profile 104 (i.e., the side facing the grain silo). A sealing strip 105 is embedded in this sealing groove, and the sealing portion of the sealing strip 105 protrudes from the plane of the back plate 102, as shown in the reference diagram. Figure 7 , Figure 9 or Figure 11 As shown, this is to ensure a tight seal between the window sash 1 and the corresponding part on the window frame 2 when the window sash 1 is closed. In this embodiment, the sealing strip 105 is made of EPDM rubber (though silicone can also be used depending on the situation).

[0040] As an optional implementation, based on the above-mentioned window sash 1 structure, a temperature measuring unit is further integrated into the window sash 1 to directly sense the surface temperature of its panel 101 and back panel 102. By monitoring the temperature performance of the window sash 1 panel 101 and back panel 102 within a specific time period, the ability of the sealed window to maintain a constant temperature environment inside the chamber can be directly verified, thereby achieving efficient and online evaluation of the heat insulation performance of the sealed window itself and the overall airtightness of the installation.

[0041] like Figure 8 and Figure 9 As shown, the temperature measuring unit includes a first temperature measuring unit 108 and a second temperature measuring unit 109 embedded inside the window sash 1. Both the first temperature measuring unit 108 and the second temperature measuring unit 109 are preferably contact temperature sensors, such as digital temperature sensors.

[0042] The first temperature sensing unit 108 includes at least one contact temperature sensor, which can be installed on the edge or center of the window sash 1. In this embodiment, the first temperature sensing unit 108 includes a contact temperature sensor installed on the edge of the window sash 1 near the pivot 7. Furthermore, the first temperature sensing unit 108 is firmly fixed to the inner surface of the front panel 101 using thermally conductive adhesive, ensuring an efficient heat conduction path between its sensing element and the front panel 101, thereby accurately and quickly sensing the surface temperature of the front panel 101. Similarly, the second temperature sensing unit 109 is installed on the inner surface of the back panel 102 in the same manner for accurately sensing the surface temperature of the back panel 102.

[0043] To achieve communication between the first temperature measuring unit 108 and the second temperature measuring unit 109 and the grain warehouse monitoring platform, both the first temperature measuring unit 108 and the second temperature measuring unit 109 are electrically connected to the communication module of the sealed window. (Note: The sealed window is generally equipped with a communication module, enabling the linkage actuator 6 to communicate with the grain warehouse monitoring platform, so that the grain warehouse monitoring platform can remotely control the opening and closing of the window sash 1.) Specifically, the first temperature measuring unit 108 and the second temperature measuring unit 109 are electrically connected to the communication module via a connecting line. In this embodiment, the connecting line adopts a concealed wiring scheme: the part near the temperature measuring unit is pre-embedded in the insulation layer 103 of the window sash 1, and after being led out from the edge of the window sash 1, it continues to pass through the hollow cavity of the rotating shaft 7 of the sealed window, and finally leads out through the rotating shaft 7 to the side of the window frame 2, where it is electrically connected to the communication module set in the window frame 2 or adjacent to it.

[0044] The communication module preferably has a standardized wired interface, such as a waterproof aviation connector. This connector allows for convenient connection of the window sash 1 to the grain storage monitoring platform using a pre-fabricated cable, thereby stably transmitting the temperature data detected by the first temperature measuring unit 108 and the second temperature measuring unit 109 to the grain storage monitoring platform for processing.

[0045] Depending on the specific needs, the communication module can also include a wireless transmission module (such as a module based on LoRa, ZigBee, or 4G / 5G technology) to transmit the detected temperature data to the grain storage monitoring platform via wireless signals. This design eliminates the need for on-site wiring and improves the ease of installation of the sealed window.

[0046] II. Window frame 2, base plate 3 and partition 4 Window frame 2 is made of metal. To enable convenient external installation, the inner frame size of window frame 2 is configured to be larger than or equal to the size of the grain silo window opening 11. This allows window frame 2 to completely cover the outer wall of the grain silo window opening 11 and be directly fixed with fasteners such as expansion bolts, avoiding the drawbacks of traditional recessed installation that require precise size customization of window frame 2, and achieving modular production and universal installation.

[0047] Both base plate 3 and partition plate 4 are frame structures, see reference. Figure 4 The base plate 3 (a metal plate) is used for direct contact with the outer wall of the grain silo. The partition 4 is made of a low thermal conductivity insulating material (such as PVC, nylon, polytetrafluoroethylene, hard rubber, carbon fiber, etc.) and is a frame-type component. The shape and size of the partition 4 can be exactly the same as the base plate 3. In other alternatives, the shape or size of the two can also be different, the core being to ensure that when the window sash 1 is closed, the sealing part of the sealing strip 105 can reliably contact the surface of the partition 4 or the surface of the base plate 3 to form an effective seal.

[0048] The base plate 3, partition plate 4, and window frame 2 are all pre-drilled with precisely corresponding and compatible mounting holes, and the three are aligned and securely fixed by fasteners (such as expansion bolts) passing through these mounting holes. In this structure, the partition plate 4 is sandwiched between the metal window frame 2 and the metal base plate 3. Utilizing its low thermal conductivity, it forms a thermal break structure between the window frame 2 and the base plate 3, preventing heat from the window frame 2 from being transferred to the base plate 3 and the wall.

[0049] Furthermore, the inner frame dimension of the base plate 3 is smaller than the inner frame dimension of the window frame 2, and the outer frame dimension is smaller than the outer frame dimension of the window frame 2. That is, after the base plate 3, partition 4, and window frame 2 are connected, a portion of the structure of the base plate 3 extends into the inner frame of the window frame 2, as shown in the reference. Figure 7 and Figure 11 This forms a base for supporting the sealing strip 105 of the window sash 1.

[0050] When the window sash 1 is closed, the sealing strip 105 of the window sash 1 is tightly pressed against the part of the bottom plate 3 that extends into the inner frame of the window frame 2, thereby effectively sealing the gap 5 between the window sash 1 and the window frame 2, reliably isolating the inside of the granary from the outside environment, and ensuring the overall airtightness and heat insulation effect.

[0051] After the window frame 2 is fixed at the grain warehouse window opening 11, the gap formed between the outer edge of the window frame 2 and the outer perimeter of the base plate 3 and the outer wall of the grain warehouse (i.e. Figure 7 and Figure 11 Area A (10) as indicated in the label is filled with a foam layer and sealed with a weather-resistant structural adhesive layer (such as silicone structural adhesive) on the outside. This structure provides excellent rainproof and waterproof sealing. On the other hand, as it is also a poor conductor of heat, it forms a thermal break between the base plate 3 and the open environment outside the grain silo, blocking the path of heat transfer from the installation gaps to the inside of the grain silo and from the base plate 3 to the inside of the grain silo.

[0052] As a preferred embodiment, the inner periphery of the base plate 3 and partition plate 4 is also filled with a foamed adhesive layer between itself and the outer wall of the grain silo, and a weather-resistant structural adhesive layer is then sealed on the outside. This preferred embodiment achieves a more comprehensive airtight seal. Its key function is to effectively resist the static pressure load generated by the pressure difference between the inside and outside of the grain silo (especially the positive pressure formed inside the silo), preventing gas from forcibly penetrating or damaging the outer structural adhesive layer due to excessive internal pressure, thereby ensuring the long-term integrity and reliability of the sealing system.

[0053] The installation process of the grain warehouse sealing window provided by this utility model is greatly simplified compared to traditional sealing windows: First, the lightweight base plate 3 is placed at the grain silo window opening 11. After adjusting its level and verticality, it is individually fixed to the wall using expansion bolts. Then, the partition plate 4 is installed, aligned with the base plate 3. Next, the heavy window frame 2, with the window sash 1 already assembled, is hoisted to the predetermined position, aligning its mounting holes with the mounting holes on the partition plate 4 and the base plate 3, and then secured with expansion bolts. This process eliminates the need for repeated adjustments to the heavy window frame 2 at height, significantly reducing the difficulty and intensity of the installation work.

[0054] III. Linkage Execution Device 6 The linkage actuator 6 is installed on the window frame 2 and is used to drive the window sash 1 to perform opening and closing actions and locking and unlocking actions relative to the window frame 2. Figure 12 , Figure 25 and Figure 26 As shown, the linkage actuator 6 includes a transmission mechanism 204, a linear actuator 201, and an opening and closing mechanism 203 mounted above the window frame 2. The above components are encapsulated in the housing 12, and also include a locking mechanism 202 embedded in the cavity of the window frame 2.

[0055] This installation method creates a concealed installation, with all components hidden, resulting in a neat and aesthetically pleasing appearance. It also effectively prevents dust intrusion and human-caused damage, making it ideal for industrial environments such as grain silos.

[0056] (1) Linear driver 201 The linear actuator 201 preferably adopts an electric push rod, which is mechanically linked with the locking mechanism 202 and the opening and closing mechanism 203 simultaneously through the transmission mechanism 204.

[0057] (2) Transmission mechanism 204 The transmission mechanism 204 is configured to decompose a single unidirectional linear motion of the linear actuator 201 into a sequential drive of the locking mechanism 202 and the opening / closing mechanism 203. Specifically, when closing, the opening / closing mechanism 203 is driven first to perform the closing action, and then the locking mechanism 202 is driven to perform the locking action; when opening, the locking mechanism 202 is driven first to perform the unlocking action, and then the opening / closing mechanism 203 is driven to perform the opening action.

[0058] like Figure 13As shown, the transmission mechanism 204 includes a first delayed transmission component 205 and a second delayed transmission component 206. The first delayed transmission component 205 is driveably connected between the linear actuator 201 and the opening / closing mechanism 203, forming a linkage path between the linear actuator 201 and the opening / closing mechanism 203, and has a preset first idle stroke. The second delayed transmission component 206 is driveably connected between the linear actuator 201 and the locking mechanism 202, forming a linkage path between the linear actuator 201 and the locking mechanism 202, and has a preset second idle stroke. These two idle strokes are configured to alternately engage and disengage power transmission during one unidirectional linear motion of the linear actuator 201, thereby achieving precise sequential drive. Specifically, during one unidirectional linear motion of the linear actuator 201, when the first idle stroke engages power transmission, the linear actuator 201 drives the locking mechanism 202 to operate, but does not drive the opening / closing mechanism 203; when the second idle stroke engages power transmission, the linear actuator 201 drives the opening / closing mechanism 203 to operate, but does not drive the locking mechanism 202.

[0059] The first delayed transmission component 205 includes a pusher frame 301 and a first push-pull rod 302. For example... Figure 14 and Figure 15 As shown, the pusher frame 301 is slidably mounted within the housing 304 of the opening and closing mechanism 203 via the first guide rail 303, and can move smoothly along a preset trajectory. In this embodiment, the moving direction of the pusher frame 301 is consistent with the linear motion direction of the output end of the linear actuator 201. The first end of the first push-pull rod 302 is drive-connected to the output end of the linear actuator 201, and the second end is slidably mounted on the pusher frame 301. In this embodiment, the first push-pull rod 302 is slidably mounted on the pusher frame 301 via a bushing.

[0060] A first positioning pin 305 is fixedly provided on the second end of the first push-pull rod 302, and a first slide groove 306 extending along its sliding direction is correspondingly provided on the push frame 301. The first positioning pin 305 is slidably assembled in the first slide groove 306, and its sliding stroke in the first slide groove 306 constitutes the first idle stroke. In this embodiment, the first idle stroke is equal to the effective working stroke of the second delay transmission member 206. That is, when the first positioning pin 305 slides in the first slide groove 306 and performs the first idle stroke, it is the time window when the locking mechanism 202 is driven.

[0061] like Figure 14 and Figure 15As shown, the first slide 306 has a first stroke endpoint (right end point in the figure) and a second stroke endpoint (left end point in the figure). A first compression spring 307 in a compressed state is fitted between the first push-pull rod 302 and the push frame 301. The first compression spring 307 continuously applies a force to the push frame 301, causing the first stroke endpoint to have a tendency to maintain constant contact with the first positioning pin 305. When the first positioning pin 305 is in contact with the first stroke endpoint, the linear actuator 201 drives the opening and closing mechanism 203 through the first delay transmission member 205; when the first positioning pin 305 moves between the first stroke endpoint and the second stroke endpoint, the first delay transmission member 205 performs a first idle stroke, and the linear actuator 201 drives the locking mechanism 202 through the second delay transmission member 206.

[0062] Furthermore, such as Figure 14 and Figure 15 As shown, the pusher frame 301 has a second slide groove 308 that is perpendicular to the first slide groove 306.

[0063] This embodiment also includes a locking component for locking the first positioning pin 305 in position, preventing it from sliding in the first slide groove 306. For example... Figures 16 to 19 As shown, the locking assembly includes a retainer 309, a locking plate 310, and a tension spring (not shown in the figures). The retainer 309 is fixed to the housing 304 of the opening and closing mechanism 203, as shown. Figure 16 As shown, the retainer 309 is provided with a guide groove 311, which includes a long slide 312 and a rotating slide 313 connected together. In this embodiment, the long slide 312 is specifically a long hole, the length direction of which is consistent with the moving direction of the pusher 301. The rotating slide 313 is specifically a fan-shaped through hole.

[0064] The locking plate 310 is a rectangular piece with a third groove 314 through which the first positioning pin 305 passes. A locking rod 315 is fixed to its lower surface, and at least two positioning posts 316 are fixed to its upper surface. In actual manufacturing, the locking rod 315 typically passes through the locking plate 310, with the portion of the locking rod 315 extending to the upper surface of the locking plate 310 forming one of the positioning posts 316. The locking rod 315 is slidably fitted within the second groove 308, and all positioning posts 316 are slidably fitted within the guide groove 311. A tension spring connects the locking rod 315 and the pusher frame 301, providing a pulling force to the locking rod 315 that tends to pull the locking plate 310 towards the unlocked position (i.e., the end of the second groove 308 away from the first groove 306). Figure 19 As shown, in this embodiment, two positioning posts 316 are fixed on the upper surface of the locking piece 310 to accommodate the rotating slide 313. Specifically, as shown... Figure 16As shown, when the locking rod 315 is pulled toward the end of the second slide groove 308 away from the first slide groove 306, when one of the positioning pins 316 falls to the center of the rotating slide 313, the other positioning pin 316 can move along the arc edge of the rotating slide 313, thereby realizing the swing of the locking plate 310 relative to the push frame 301.

[0065] The working principle of the locking component is as follows: Figure 18 and Figure 19 As shown, when all the positioning pins 316 are located within the elongated slide rail 312, the locking piece 310 is in the locked position. At this time, the extension direction of the third slide groove 314 is perpendicular to the extension direction of the first slide groove 306, effectively preventing the first positioning pin 305 from sliding within the first slide groove 306. Simultaneously, the first push-pull rod 302 and the push frame 301 form a mechanical linkage, driving the opening and closing mechanism 203 to operate. When the first push-pull rod 302 drives the push frame 301 to operate, the positioning pins 316 will slide within the elongated slide rail 312.

[0066] It should be noted that the length of the elongated slide 312 is designed to accommodate the effective working stroke required for the first delayed transmission component 205 to drive the opening and closing mechanism 203 to complete one full window opening or closing action. When the positioning post 316 of the locking plate 310 slides from one end to the other within the elongated slide 312, the pusher 301 can move a sufficient distance to drive the window sash 1 from the fully closed state to the fully open state, or vice versa, via the opening and closing mechanism 203.

[0067] like Figure 16 and Figure 17 As shown, when one of the positioning pins 316 falls into the rotating slide 313, the locking piece 310 is in the unlocked position. At this time, the locking piece 310 can swing relative to the push frame 301 to continuously change the relative overlap position of the third slide 314 and the first slide 306, providing a channel for the first positioning pin 305 to slide in the first slide 306, thereby performing the first idle stroke.

[0068] It should be noted that the length of the arc-shaped edge of the rotary slide 313 is designed to accommodate the range of motion required for the first delayed transmission member 205 to perform a complete first idle stroke. This design ensures that the swing angle of the locking piece 310 is precisely controlled when the positioning pin 316 of the locking piece 310 slides along the arc-shaped edge within the rotary slide 313. This allows the changing trajectory of the overlapping position of the third slide groove 314 and the first slide groove 306 to generate sufficient channel space, allowing the first positioning pin 305 to complete its entire sliding stroke within the first slide groove 306 from the first stroke endpoint to the second stroke endpoint (or vice versa).

[0069] The second delay transmission component 206 includes a second push-pull rod 401 and a first motion direction conversion assembly. For example... Figure 20 and Figure 21 As shown, the first motion direction conversion assembly includes a first mounting bracket 402, a third push-pull rod 405 slidably mounted on the first mounting bracket 402, and a first swing plate 403 rotatably mounted on the first mounting bracket 402.

[0070] The first swing plate 403 is linked to the third push-pull rod 405 and the locking mechanism 202, respectively, to convert the linear motion of the third push-pull rod 405 into the linear motion driving the locking mechanism 202. Specifically, the first swing plate 403 has a triangular plate-like structure, with one corner rotatably connected to the first mounting bracket 402, the second corner slidably assembled with the third push-pull rod 405, and the third corner slidably assembled with the transmission connecting rod 602 in the locking mechanism 202. Figure 20 As shown, a first elongated hole is provided at the second corner of the first swing plate 403, and a first pin is provided at the end of the third push-pull rod 405. The first pin is slidably assembled in the first elongated hole to realize the sliding assembly of the first swing plate 403 and the third push-pull rod 405. A second elongated hole is provided at the third corner of the first swing plate 403, and a second pin is provided at the end of the transmission link 602 of the locking mechanism 202. The second pin is slidably assembled in the second elongated hole to realize the sliding assembly of the first swing plate 403 and the transmission link 602.

[0071] Furthermore, an elastic reset element is provided between the third push-pull rod 405 and the first mounting bracket 402. In this embodiment, the elastic reset element is a second compression spring 404, which is used to provide a reset force to the third push-pull rod 405 to ensure that the third push-pull rod 405 can stably return to its original position when there is no external force driving it.

[0072] The second push-pull rod 401 is linked to the linear actuator 201 and slidably connected to the third push-pull rod 405. Specifically, the free end of the second push-pull rod 401 has an axial hole, and the corresponding end of the third push-pull rod 405 extends into the axial hole. The relative sliding stroke between the second push-pull rod 401 and the third push-pull rod 405 constitutes the second idle stroke. In this embodiment, the second idle stroke is equal to the effective working stroke of the first delay transmission member 205. That is, when the second push-pull rod 401 and the third push-pull rod 405 slide relative to each other and execute the second idle stroke, it is precisely the time window when the opening and closing mechanism 203 is driven.

[0073] (3) Opening and closing mechanism 203 The opening and closing mechanism 203 is responsible for converting the linear motion transmitted by the transmission mechanism 204 into the rotary opening and closing action of the window sash 1. In this embodiment, the opening and closing mechanism 203 includes a rack 501 and a gear 502 that mesh with each other. The rack 501 is fixedly mounted on the aforementioned push frame 301 and moves linearly together with the push frame 301; the gear 502 is fixedly mounted on the rotating shaft 7 of the window sash 1 by a key connection or interference fit.

[0074] When the pusher 301 is driven by the first delayed transmission member 205 to generate linear displacement, the rack 501 fixed on it moves synchronously. The meshing action of the rack 501 and the gear 502 converts the linear motion into the rotational motion of the gear 502, which in turn drives the window sash 1 to complete the opening or closing action through the rotating shaft 7 of the window sash 1.

[0075] In this embodiment, the length of the rack 501 is matched with the effective stroke of the pusher 301, and the pitch circle diameter of the gear 502 is precisely calculated according to the required opening and closing angle of the window sash 1. This design ensures that the window sash 1 can reliably rotate within a predetermined angle range from fully closed to fully open throughout the entire working stroke of the pusher 301.

[0076] The timing of the opening and closing mechanism 203 is precisely controlled by the first delayed transmission component 205. Specifically, the power of the linear actuator 201 is transmitted to the opening and closing mechanism 203 through the pusher frame 301 only when the first positioning pin 305 is in contact with the first stroke end point of the first slide rail 306. During the operation of the locking mechanism 202 (i.e., the first idle stroke phase), the opening and closing mechanism 203 remains stationary, thereby realizing the forced sequential action of "closing the window before locking" and "unlocking the window before opening".

[0077] (4) Locking mechanism 202 The locking mechanism 202 is used to apply a clamping force to the window sash 1 after it is closed, to ensure that the sealing strip 105 on the inner side of the window sash 1 is fully compressed and a reliable seal is achieved. The locking mechanism 202 includes at least one latch assembly. In practical applications, it can be flexibly configured according to the size of the window sash 1, the sealing level requirements, and cost considerations: a latch assembly can be set on a single side of the window sash 1 (usually the free side opposite to the pivot 7); or a latch assembly can be arranged on all four sides of the window sash 1 to form a balanced circumference clamping force on the window sash 1.

[0078] like Figures 22 to 24 As shown, each latch assembly includes a latch bracket 601, a transmission link 602, and at least one actuating component (i.e., one or more actuating components can be provided on one side). The transmission link 602 is linked with the actuating component. It typically also includes a lock seat for use. When locking is required, the transmission link 602 drives the latch 604 to extend and enter the lock seat; when unlocking is required, the transmission link 602 drives the latch 604 to retract from the lock seat.

[0079] The latch bracket 601 serves as the basic mounting frame and is fixed within the window frame 2. The transmission link 602 is slidably mounted on the latch bracket 601; in this embodiment, the transmission link 602 is slidably mounted on the latch bracket 601 via a bushing. One end of the transmission link 602 is linked to the first swing plate 403 in the aforementioned second delayed transmission component 206 (specifically, through a second pin slidingly engaging with a second elongated hole on the first swing plate 403) to receive linear driving force.

[0080] Each actuating component includes a second swing plate 603 and a locking tongue 604. The second swing plate 603 is rotatably mounted on the locking tongue holder 601, and its function is to convert the linear driving force received by the transmission link 602 into a linear force perpendicular to the linear driving force, so as to drive the locking tongue 604 to perform an extension or retraction movement.

[0081] In this embodiment, the second swing plate 603 has a triangular plate-like structure, with one corner rotatably connected to the latch bracket 601 and the other two corners slidably connected to the latch bracket 601. Figures 22 to 24 As shown, the latch bracket 601 has a first guide groove 605 and a second guide groove 606. The length direction of the first guide groove 605 is consistent with the movement of the transmission connecting rod 602, and the length direction of the second guide groove 606 is consistent with the movement direction of the latch 604. One corner of the second swing plate 603 is rotatably connected to the latch bracket 601 via a shaft; the second corner is slidably engaged with the first guide groove 605 via a third pin, and is linked to the transmission connecting rod 602 via the third pin. Specifically, a third elongated hole is provided at the second corner position of the second swing plate 603, the bottom end of the third pin is fixedly connected to the transmission connecting rod 602, and extends vertically upward through the first guide groove 605 and into the third elongated hole of the second swing plate 603; the third corner is slidably engaged with the second guide groove 606 via a fourth pin, and is linked to the latch 604 via the fourth pin. Specifically, a fourth elongated hole is provided at the triangular position of the second swing plate 603, the top end of the fourth pin is connected to the latch 604, and extends vertically downward through the fourth elongated hole of the second swing plate 603 and into the second guide groove 606. Because the fourth elongated hole is blocked by the latch 604, it cannot be observed in the attached drawing.

[0082] To reduce friction, multiple ball bearings are embedded between the contact surfaces of the second swing plate 603 and the locking tongue bracket 601.

[0083] The locking tongue 604 is slidably mounted on the locking tongue bracket 601 via the second guide rail 607, the length direction of the second guide rail 607 being consistent with the direction of the linear force.

[0084] Working process: When the transmission linkage 602 is driven to make linear motion, it pushes the third pin to slide along the first guide groove 605, and at the same time drives the second swing plate 603 to swing counterclockwise around its axis. The swing of the second swing plate 603 then pushes the fourth pin through the fourth elongated hole. Since the fourth pin is confined in the second guide groove 606, the linear driving force is converted into a linear force with a different direction, driving the locking tongue 604 to extend along the second guide rail 607.

[0085] The unlocking process is the opposite. Under the action of linear driving force, the transmission link 602 moves in the opposite direction, and through the third pin, it drives the second swing plate 603 to swing clockwise around its axis 7, driving the lock tongue 604 to retract along the second guide rail 607.

[0086] To synchronously drive multiple latch assemblies distributed on different sides, this embodiment also includes a second motion direction conversion assembly 608. The second motion direction conversion assembly 608 includes a second mounting bracket and a third swing plate rotatably mounted thereon. The structure of the third swing plate is similar to that of the first swing plate 403, exhibiting a triangular plate-like structure. One corner is hinged to the second mounting bracket, and the other two corners each have elongated holes.

[0087] The ends of the transmission links 602 of the latch assemblies distributed on different sides (such as horizontal and vertical sides) are slidably assembled with the elongated holes at the corresponding corners of the third swing plate by means of pins.

[0088] Linkage Principle: Taking the driving of a horizontal lock tongue assembly and a vertical lock tongue assembly as an example. When the horizontal transmission link 602 is driven to make linear motion, the pin at its end slides in the elongated hole of the third swing plate, driving the third swing plate to swing around its hinge point. The swing of the third swing plate, in turn, drives the vertical transmission link 602 to make linear motion through another elongated hole, thereby converting the horizontal linear driving force by 90° and transmitting it to the vertical lock tongue assembly, realizing the synchronous linkage of the two vertical lock tongues 604. By combining multiple second motion direction conversion components 608, unified driving of all side lock tongue assemblies can be achieved.

[0089] The specific work process is as follows: When window sash 1 is closed, the linear actuator 201 is activated. Its single-direction linear motion, pulled back once, is sequentially controlled by the transmission mechanism 204. First, it drives the opening and closing mechanism 203 to rotate window sash 1 to the closed position. Then, it drives the locking mechanism 202 to extend each locking tongue 604 synchronously. The locking tongue 604 cooperates with the lock seat to finally tighten and press window sash 1 firmly onto window frame 2, so that the sealing strip 105 around window sash 1 is uniformly and fully compressed, achieving reliable airtightness and thermal insulation sealing. Figure 25 This shows the closed and locked state.

[0090] When window sash 1 is opened, the linear actuator 201 is activated. Its one-way linear motion is controlled sequentially by the transmission mechanism 204. First, it drives all the latches 604 of the locking mechanism 202 to retract synchronously, releasing the locking of window sash 1. Then, it drives the opening and closing mechanism 203 to rotate window sash 1 to the open position. Figure 26 It shows the open and unlocked status.

[0091] It should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An externally mounted sealed grain warehouse window, comprising a window frame and a window sash operablely mounted on the window frame, characterized in that: The window frame and the grain warehouse window opening have a predetermined dimensional relationship, which allows the window frame to be externally installed in a way that covers the window opening; It also includes a linkage actuator for driving the window sash to perform opening, closing, and locking / unlocking actions relative to the window frame; the linkage actuator includes a linear actuator, a locking mechanism, an opening / closing mechanism, and a transmission mechanism, wherein the linear actuator is simultaneously linked with the locking mechanism and the opening / closing mechanism through the transmission mechanism.

2. The externally mounted grain silo sealing window according to claim 1, characterized in that: The transmission mechanism includes a first delay transmission component and a second delay transmission component; The first delay transmission member is driven between the linear driver and the opening / closing mechanism, and has a first free stroke; the second delay transmission member is driven between the linear driver and the locking mechanism, and has a second free stroke. The first idle stroke and the second idle stroke are configured to alternately engage and disengage power transmission during a single unidirectional linear motion of the linear actuator, thereby achieving sequential driving of the locking mechanism and the opening / closing mechanism.

3. The externally mounted grain silo sealing window according to claim 2, characterized in that: The first delay transmission component includes a pusher frame and a first push-pull rod; The pusher frame is slidably assembled into the housing of the opening and closing mechanism along a preset trajectory; The first push-pull rod is linked to the linear actuator and slides along the push frame; A first positioning pin is fixedly provided on the first push-pull rod; a first slide groove extending along its sliding direction is correspondingly provided on the push frame, and the first positioning pin is slidably assembled in the first slide groove. The sliding stroke of the first positioning pin within the first groove constitutes the first empty stroke.

4. The externally mounted grain silo sealing window according to claim 3, characterized in that: The first chute has a first stroke end point and a second stroke end point opposite to each other; A first compression spring in a compressed state is fitted between the first push-pull rod and the push frame. The first compression spring applies a force to the push frame so that the first stroke end point has a tendency to maintain constant contact with the first positioning pin. When the first positioning pin remains in contact with the first stroke end point, the linear actuator drives the opening and closing mechanism through the first delay transmission component; When the first positioning pin moves between the first stroke end point and the second stroke end point, the linear drive drives the locking mechanism through the second delay transmission member.

5. An externally mounted grain silo sealing window according to claim 3 or 4, characterized in that: The pusher frame is provided with a second groove that is perpendicular to the first groove; It also includes a locking component for locking the first positioning pin; the locking component includes: A retainer is fixed to the housing. The retainer is provided with a guide groove, which includes a long slide and a rotary slide communicating with the long slide. The locking plate has a third sliding groove through which the first positioning pin passes. A locking rod is fixed on the lower surface of the locking plate, and at least two positioning pins are fixed on the upper surface. The locking rod is slidably assembled in the second sliding groove, and all the positioning pins are slidably assembled in the guide groove. A tension spring, connected between the locking rod and the push frame, is used to provide a pulling force to the locking rod that tends to pull the locking plate toward the unlocked position; When all the positioning pins are located in the long slide, the locking piece is in the locked position. At this time, the extension direction of the third slide groove is perpendicular to the extension direction of the first slide groove, so as to prevent the first positioning pin from sliding in the first slide groove. When one of the positioning pins falls into the rotating slide, the locking plate is in the unlocked position. At this time, the locking plate can swing back and forth relative to the push frame, providing a channel for the first positioning pin to slide in the first slide groove, thereby performing the first empty stroke.

6. An externally mounted grain silo sealing window according to claim 5, characterized in that: The opening and closing mechanism includes a rack and a gear that mesh with each other; the rack is fixedly installed on the pusher frame, and the gear is fixedly installed on the rotating shaft of the window sash.

7. An externally mounted grain silo sealing window according to any one of claims 2-4 and 6, characterized in that: The second delay transmission component includes a second push-pull rod and a first motion direction conversion assembly; The first motion direction conversion component includes a first mounting bracket, a third push-pull rod slidably mounted on the first mounting bracket, and a first swing plate rotatably mounted on the first mounting bracket. The first swing plate is linked with the third push-pull rod and the locking mechanism respectively, and is used to convert the linear motion of the third push-pull rod into the reciprocating linear motion that drives the locking mechanism. An elastic reset member is provided between the third push-pull rod and the first mounting bracket for providing a reset force to the third push-pull rod; The second push-pull rod is linked to the linear actuator and slidably connected to the third push-pull rod; The relative sliding stroke between the second push-pull rod and the third push-pull rod constitutes the second free stroke.

8. An externally mounted grain silo sealing window according to claim 7, characterized in that: The locking mechanism includes at least one locking tongue assembly; the locking tongue assembly includes a locking tongue bracket, a transmission link, and at least one actuating component; The transmission link is slidably mounted on the locking tongue frame and is linked with the first swing plate to receive linear driving force; The actuating components include a second swing plate rotatably mounted on the latch frame and a latch slidably mounted on the latch frame; The second swing plate is linked with the latch and the transmission link respectively, and is used to convert the linear driving force received by the transmission link into a linear force perpendicular to the linear driving force, so as to drive the latch to perform an extension or retraction movement; When the locking mechanism includes at least two of the latch assemblies, the at least two latch assemblies are configured to be hidden on adjacent or opposite sides of the window frame; The latch assemblies distributed on different sides are linked together by a second motion direction conversion assembly; The second motion direction conversion assembly includes a second mounting bracket and a third swing plate rotatably mounted on the second mounting bracket; the third swing plate is linked with the transmission linkage of the latch assembly on different sides to convert the direction of the linear driving force received by one latch assembly and transmit it to the adjacent latch assembly.

9. An externally mounted grain silo sealing window according to any one of claims 1-4, 6, and 8, characterized in that: It also includes a frame-shaped base plate and partition plate, wherein the base plate, the partition plate and the window frame are provided with mounting holes and are configured to achieve alignment and fixed connection of the three by fasteners passing through these mounting holes; The base plate is used to contact the outer wall of the grain silo; the partition is a heat insulation material and is sandwiched between the window frame and the base plate to form a thermal break structure between the window frame and the base plate.

10. An externally mounted grain silo sealing window according to any one of claims 1-4, 6, and 8, characterized in that: The window sash is a window sash with a thermal break structure, including: A panel having a front panel and a peripheral portion vertically connected to the periphery of the front panel; The back panel is disposed opposite to the front panel and forms a cavity with the front panel and the peripheral side portion; An insulation layer is filled into the cavity; The profile, made of heat-insulating material, is connected between the periphery of the back panel and the peripheral side, forming a thermal break structure between the panel and the back panel.

Images