Chain type window opening structure and rigid chain

Abstract

The application discloses a chain type window opening structure and a rigid chain and belongs to the technical field of chains. The chain type window opening structure and the rigid chain comprise a chain storage box and a chain. The chain storage box is internally provided with a sprocket matched with the chain and a chain stretching driving motor connected with the sprocket. A window connecting block is arranged at the starting end of the chain. A protective cover is arranged at the window connecting block. The protective cover comprises a connecting portion and a contraction portion. The protective cover is made of waterproof and light-proof cloth. The connecting portion of the protective cover is attached to the window connecting block. The chain type window opening structure and the rigid chain provided by the application can effectively protect the chain from rusting and prolong the service life of the chain.

Description

Technical Field

[0001] This invention belongs to the field of chain technology, specifically relating to a chain-type window structure and a rigid chain. Background Technology

[0002] With the increasing awareness and standards of fire safety in China, window openers for building smoke exhaust windows are becoming more and more common. These window openers are motor-driven devices that automatically open or close windows, primarily used in high locations where manual opening is not feasible, such as large stadiums, industrial plants, or other public places.

[0003] Chinese Patent Publication No. CN106948703A, entitled "Chain Window Opener and Window Opening Mechanism," discloses a chain window opener comprising a long, rectangular box body. A drive mechanism and a chain controlled by the drive mechanism are disposed within the box body. The box body includes peripheral sides and two end faces. The drive mechanism is installed at the rear end of the box body, and the chain is located within the box body in front of the drive mechanism. The key feature is that the front end face of the box body has an opening for the chain to extend outwards, and the outward extension direction of the chain is consistent with the length direction of the box body.

[0004] In use, the aforementioned device opens and closes the connected window by extending or retracting the chain. When using a chain to open and close the window, the chain needs to extend from its storage box, exposing it to the air. Since the pins, chain plates, and other components in the chain are connected by a rotating mechanism, the internal components experience relative wear due to rotation during chain movement. Combined with the effects of sunlight and rain from the external environment, this leads to rapid corrosion of the chain, significantly shortening its lifespan. Therefore, this application proposes a chain-type window opening structure and a rigid chain. Summary of the Invention

[0005] The purpose of this invention is to provide a chain-type window opening structure and a rigid chain to solve the problem mentioned in the background art that the chain, after being pulled out when opening the window, is exposed to the air and will rust rapidly under the influence of sunlight, rain and other external environmental factors.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A rigid chain includes a chain plate, a pin, a sleeve, and rollers. Two rollers are inserted into the chain plate, and the rollers are fixedly connected to the chain plate by the pin. The pin is inserted vertically into the roller. The chain plate is located between the upper and lower pins, and a cross plate is provided on the chain plate. The chain also includes a limiting plate, which rotates with the rollers and is located between two adjacent chain plates. When the chain plates and the limiting plate are aligned, the limiting plate rests against the horizontal plate.

[0007] A chain-type window structure includes a chain and a chain storage box. The chain storage box is provided with a sprocket that cooperates with the chain and a chain extension drive motor connected to the sprocket. A window connecting block is provided at the starting end of the chain; A protective cover is provided at the window connecting block. The protective cover includes a connecting part and a contracting part. The protective cover is made of waterproof and light-blocking fabric. The connecting part of the protective cover fits into the window connecting block. The contracting part is distributed in a serpentine pattern. Several skeletons are inserted inside the protective cover. The skeletons are set in a square frame shape. The inner circle size of the skeleton is larger than the size of the chain. The chain storage box is equipped with a fixing frame, which is connected to the end of the protective cover away from the window connecting block.

[0008] Preferably, the chain storage box is provided with a chain guide block inside, the chain guide block is slidably engaged with the chain plate, and the chain guide block is distributed along the movement trajectory of the chain.

[0009] Preferably, the cross-section of the chain guide block is set to a T-shape.

[0010] Preferably, multiple sprockets are provided, and the multiple sprockets are distributed in parallel inside the chain storage box. A transmission mechanism is provided at each sprocket, and the transmission mechanism includes a transmission belt and a transmission wheel.

[0011] Preferably, a protective box is provided at the window connecting block. The protective box includes a storage shell, a box cover, and a box side panel. The storage shell and the box cover are detachably and fixedly connected.

[0012] Preferably, the side panel of the box is inserted into the storage shell, and the side panel of the box is provided with an inlet and outlet that allows the window connecting block to pass through.

[0013] Preferably, the window connecting block is provided with a guide rope, a guide seat that slides with the guide rope, and a winding drum for winding the guide rope.

[0014] Preferably, the guide seat is installed at the position of the frame on the protective cover, and one end of the guide rope is fixedly connected to the connecting part in the protective cover.

[0015] Preferably, the protective box is provided with a winding bracket that rotates with the winding drum, and a spring mechanism mounted on the winding bracket and connected to the winding drum.

[0016] Beneficial effects: I. The present invention provides a chain-type window opening structure and a rigid chain. During the unfolding process of the chain, the window connecting block moves outward. During the movement, the connecting part in the protective cover always adheres to it and moves together with it. During the subsequent movement of the chain, the retractable part in the protective cover will unfold and move together with the window connecting block. In this way, the part of the chain that moves out of the chain storage box will be inside the protective cover. The protective cover is made of rainproof and sunproof fabric, which can prevent sunlight and rainwater from directly contacting the part of the chain that moves out of the chain storage box, effectively protecting the chain, preventing it from rusting, and allowing it to be used for a longer time.

[0017] Second, after the chain is extended, the window will rotate downwards under its own weight, thus opening the window. The presence of the limiting plate restricts the rotation angle of the chain plates inside the chain. In this way, when the chain gets stuck in the window, the subsequent chain plates will apply pressure to the window, allowing the window to continue to open. This can provide enough pressure to the window so that it can still open normally even when the connection between the window and the window frame is corroded.

[0018] Third, the present invention provides a chain-type window structure and a rigid chain, wherein one end of the guide rope is fixedly connected to the connecting part in the protective cover, and the other end is connected to the winding drum. In this way, as the protective cover moves or retracts with the chain, the guide rope can support the skeleton in the protective cover, thereby preventing the protective cover from collapsing to the lower side and ensuring that the protective cover is always covered on the outside of the chain. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the chain-type window structure in this invention; Figure 2 This is one of the internal structural diagrams of the chain-type window structure in this invention; Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A; Figure 4 For the present invention Figure 2 Enlarged structural diagram at point B; Figure 5 This is the second schematic diagram of the internal structure of the chain-type window structure in this invention; Figure 6 For the present invention Figure 5 Enlarged structural diagram at point C; Figure 7 For the present invention Figure 5 Enlarged structural diagram at point D Figure 8 This is a schematic diagram of the rigid chain structure in this invention; Figure 9 One of the structural schematic diagrams of the window frame, window, and chain-type window opening structure in this invention; Figure 10 The second schematic diagram of the window frame, window, and chain-type window opening structure in this invention.

[0020] Explanation of reference numerals in the attached figures: 1. Chain storage box; 2. Chain; 201. Chain plate; 202. Limiting plate; 3. Chain guide block; 4. Sprocket; 5. Chain extension drive motor; 6. Window connecting block; 7. Protective box; 701. Storage shell; 702. Box lid; 703. Box side panel; 8. Protective cover; 801. Connecting part; 802. Contraction part; 803. Frame; 9. Fixing frame; 10. Guide rope; 11. Guide seat; 12. Winding drum; 13. Winding bracket; 14. Spring mechanism; 15. Window frame; 16. Window. Detailed Implementation

[0021] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0022] like Figure 8 As shown in the figure, an embodiment of the present invention provides a rigid chain, including a chain plate 201, a pin, a sleeve, and rollers. Two rollers are inserted into the chain plate 201, and the rollers are fixedly connected to the chain plate 201 by the pin. Specifically, the pin is vertically inserted into the roller, and the chain plate 201 is located between the upper and lower pins, so that the pin and the chain plate 201 can be fixed together. The sleeve can be installed at the position where the chain plate 201 and the pin are rotatably connected to prevent the chain plate 201 and the pin from directly wearing each other. It should be noted that the chain 2 also includes a limiting plate 202, which is rotatably engaged with the roller, and the limiting plate 202 is located between two adjacent chain plates 201.

[0023] For reference Figure 2 , Figure 8A horizontal plate is provided on the chain plate 201, and a limiting plate 202 is provided between two adjacent chain plates 201. The limiting plate 202 can limit the position of the two chain plates 201. That is, when the chain plate 201 tilts upward, it will be obstructed by the limiting plate 202. Therefore, the chain plate 201 can only tilt downward. In this way, the rotation angle of the chain plate 201 can be limited. When the chain plate 201 and the limiting plate 202 are aligned, the limiting plate 202 abuts against the horizontal plate. That is, when the upper end surface of the chain plate 201 is flush with the upper end surface of the limiting plate 202, the horizontal plate in the chain plate 201 abuts against the limiting plate 202. In this way, the chain plate 201 cannot rotate to one side of the limiting plate 202, thus limiting the rotation angle of the chain 2. This gives force to the chain 2. The characteristic of the chain 2 being able to rotate only in one direction allows it to transfer the force to the window 16, thereby giving the window 16 a pushing force when it is opened.

[0024] like Figures 1-7 , Figures 9-10 A chain-type window structure includes a chain 2, a storage box 1, and a chain 2, with the chain 2 stored inside the chain 2 storage box 1.

[0025] After the chain 2 is extended, the window 16 will rotate downward under its own weight, thereby opening the window 16. The presence of the limiting plate 202 restricts the rotation angle of the internal chain plate 201 of the chain 2. Thus, when the chain 2 is stuck in the window 16, the subsequent chain plate 201 will apply pressure to the window 16, allowing the window 16 to continue to open. This provides sufficient pressure to the window 16 so that it can still open normally even when the connection between the window 16 and the window frame 15 is corroded.

[0026] It should be noted that, in order to restrict the movement of the chain plate 201, a chain 2 guide block 3 is provided inside the chain 2 storage box 1. The chain 2 guide block 3 slides with the chain plate 201 and is distributed along the travel trajectory of the chain 2. Specifically, the cross-section of the chain 2 guide block 3 is set to a T-shape.

[0027] To provide power to the chain 2, a sprocket 4 that works with the chain 2 is installed inside the chain 2 storage box 1, and a chain 2 extension drive motor 5 connected to the sprocket 4 is installed. The chain 2 extension drive motor 5 can drive the sprocket 4 to rotate, thereby moving the chain 2 out of the chain 2 storage box 1 or putting the chain 2 into the chain 2 storage box 1. In conjunction with other structures at the window 16, the opening and closing functions of the window 16 can be realized. It should be noted that there are multiple sprockets 4, and the multiple sprockets 4 are distributed in parallel inside the chain 2 storage box 1. A transmission mechanism is installed at the sprocket 4. The transmission mechanism can transmit the power of one sprocket 4 to the other sprockets 4. The transmission mechanism can adopt a transmission belt, transmission wheel structure, or a small sprocket and chain 2 structure. The chain 2 extension drive motor 5 can be model 5840-31ZYS. It is connected to the external 24V power supply via wires. The connected line is equipped with corresponding control buttons. By pressing the control buttons, the motor can be opened and closed, thereby opening and closing the entire window opening mechanism.

[0028] Specifically, a window connecting block 6 is provided at the starting end of the chain 2, and a protective box 7 is provided at the window connecting block 6. The protective box 7 includes a storage shell 701, a box cover 702, and a box side plate 703. The storage shell 701 and the box cover 702 are detachably and fixedly connected. The box side plate 703 is inserted and matched with the storage shell 701, and an inlet and outlet is provided at the box side plate 703 to allow the window connecting block 6 to pass through.

[0029] A protective box 7 is installed on the outside of the chain 2 storage box 1. The protective box 7 can hold part of the chain 2 and part of the window connecting block 6.

[0030] When using the chain 2 to open and close the window, the chain 2 needs to be pulled out of the chain 2 storage box 1. After being pulled out, the chain 2 is exposed to the air. Since the pins, chain plates 201, and other components in the chain 2 are connected by a rotating fit, the internal components will wear down due to relative rotation during the movement of the chain 2. Coupled with the effects of sunlight and rain in the external environment, this will cause the chain 2 to rust quickly, greatly shortening its service life. To solve the above problems, a protective cover 8 is provided at the window connecting block 6. The protective cover 8 includes a connecting part 801, a storage box 1, a storage box 2 ... The shrinking part 802 and the protective cover 8 are made of waterproof and light-blocking fabric, which can block rain and sunlight. Specifically, PVC coated fabric can be used. The connecting part 801 of the protective cover 8 is attached to the window connecting block 6. The shrinking part 802 is distributed in a serpentine shape. In order to increase the strength of the protective cover 8 and allow it to move along with the chain 2, several skeletons 803 are inserted inside the protective cover 8. The skeletons 803 are set in a square shape. The inner circle size of the skeleton 803 is larger than the size of the chain 2, that is, the skeleton 803 can retract the chain 2 into it. This can prevent the fabric in the protective cover 8 from getting stuck inside the chain 2.

[0031] It should be noted that a fixing frame 9 is provided at the storage box 1 of the chain 2, and the fixing frame 9 is connected to the end of the protective cover 8 away from the window connecting block 6.

[0032] As chain 2 unfolds, window connecting block 6 moves outward. During this movement, connecting part 801 in protective cover 8 remains attached to it and moves along with it. As chain 2 continues to move, retractable part 802 in protective cover 8 unfolds and moves along with window connecting block 6. In this way, the part of chain 2 that moves out of chain 2 storage box 1 will be inside protective cover 8. Protective cover 8 is made of rainproof and sunproof fabric, which can prevent sunlight and rain from directly contacting the part of chain 2 that moves out of chain 2 storage box 1, effectively protecting chain 2, preventing it from rusting, and allowing it to be used for a longer time.

[0033] To prevent the protective cover 8 from collapsing downwards and getting stuck inside the chain 2 during movement, a guide rope 10, a guide seat 11 that slides with the guide rope 10, and a winding drum 12 for winding the guide rope 10 are provided at the window connecting block 6. The guide seat 11 is installed at the position of the upper frame 803 of the protective cover 8, and one end of the guide rope 10 is fixedly connected to the connecting part 801 in the protective cover 8.

[0034] One end of the guide rope 10 is fixedly connected to the connecting part 801 in the protective cover 8, and the other end is connected to the winding drum 12. In this way, as the protective cover 8 moves or retracts with the chain 2, the guide rope 10 can support the skeleton 803 in the protective cover 8, thus preventing the protective cover 8 from collapsing to the lower side and ensuring that the protective cover 8 always covers the outside of the chain 2.

[0035] Specifically, the protective box 7 is equipped with a winding bracket 13 that rotates with the winding drum 12, and a spring mechanism 14 mounted on the winding bracket 13 and connected to the winding drum 12. The spring mechanism 14 uses a commercially available spring, and has a spiral spring inside that can store and release elasticity, thereby providing a certain tension to the guide rope 10, allowing the guide rope 10 to support the protective cover 8 and prevent it from collapsing.

[0036] For reference Figure 9 , Figure 10 When the window opening mechanism of the window opener is assembled with the window frame 15 and the window 16, one end of the window opening mechanism is hinged to the window frame 15 and the other end is hinged to the window 16. The chain 2 is activated to extend the drive motor 5, which can drive the chain 2 to move through the sprocket 4. The window 16 is hinged to the window frame 15. After the chain 2 moves, the window 16 will rotate downward around the window frame 15 under its own gravity, thus realizing the opening of the window 16. Figure 9 This is a diagram showing the state of window 16 when it is closed. Figure 10 This is the state diagram when window 16 is open.

[0037] In summary, this invention provides a chain-type window opening structure and a rigid chain. During the unfolding process of the chain 2, the window connecting block 6 moves outward. During this movement, the connecting part 801 in the protective cover 8 remains attached to it and moves along with it. As the chain 2 continues to move, the retractable part 802 in the protective cover 8 unfolds and moves along with the window connecting block 6. In this way, the part of the chain 2 that moves out of the chain 2 storage box 1 is inside the protective cover 8. The protective cover 8 is made of rainproof and sunproof fabric, which can prevent sunlight and rainwater from directly contacting the part of the chain 2 that moves out of the chain 2 storage box 1, effectively protecting the chain 2, preventing it from rusting, and allowing it to be used for a longer period of time.

[0038] After the chain 2 is extended, the window 16 will rotate downward under its own weight, thereby opening the window 16. The presence of the limiting plate 202 restricts the rotation angle of the internal chain plate 201 of the chain 2. Thus, when the chain 2 is stuck in the window 16, the subsequent chain plate 201 will apply pressure to the window 16, allowing the window 16 to continue to open. This provides sufficient pressure to the window 16 so that it can still open normally even when the connection between the window 16 and the window frame 15 is corroded.

[0039] When the window opening mechanism of the window opener is assembled with the window frame 15 and the window 16, one end of the window opening mechanism is hinged to the window frame 15 and the other end is hinged to the window 16. The chain 2 is activated to extend the drive motor 5, which can drive the chain 2 to move through the sprocket 4. The window 16 is hinged to the window frame 15. After the chain 2 moves, the window 16 will rotate downward around the window frame 15 under its own gravity, thus realizing the opening of the window 16.

[0040] The above-disclosed embodiments are merely a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A rigid chain, characterized in that, It includes a chain plate (201), a pin, a sleeve, and rollers. Two rollers are inserted into the chain plate (201). The rollers are fixedly connected to the chain plate (201) by the pin. The pin is inserted vertically into the inside of the roller. The chain plate (201) is located between the upper and lower pins. A cross plate is provided on the chain plate (201). The chain (2) also includes a limiting plate (202), which rotates with the roller. The limiting plate (202) is located between two adjacent chain plates (201), and when the chain plate (201) and the limiting plate (202) are aligned, the limiting plate (202) abuts against the horizontal plate.

2. A chain-type window structure, characterized in that, The chain includes the rigid chain mentioned in claim 1, and also includes a chain storage box (1), wherein the chain storage box (1) is provided with a sprocket (4) that cooperates with the chain (2) and a chain extension drive motor (5) connected to the sprocket (4). A window connecting block (6) is provided at the starting end of the chain (2); A protective cover (8) is provided at the window connecting block (6). The protective cover (8) includes a connecting part (801) and a contraction part (802). The protective cover (8) is made of waterproof and light-blocking fabric. The connecting part (801) of the protective cover (8) fits into the window connecting block (6). The contraction part (802) is distributed in a serpentine pattern. Several skeletons (803) are inserted inside the protective cover (8). The skeletons (803) are set in a square frame shape. The inner circle size of the skeleton (803) is larger than the size of the chain (2). A fixing frame (9) is provided at the chain storage box (1), and the fixing frame (9) is connected to the end of the protective cover (8) away from the window connecting block (6).

3. The chain-type window structure as described in claim 2, characterized in that, The chain storage box (1) is provided with a chain guide block (3) inside. The chain guide block (3) slides with the chain plate (201). The chain guide block (3) is distributed along the travel trajectory of the chain (2).

4. The chain-type window structure as described in claim 3, characterized in that, The cross-section of the chain guide block (3) is set to a T-shape.

5. A chain-type window structure as described in claim 2, characterized in that, Multiple sprockets (4) are provided, and the multiple sprockets (4) are distributed in parallel inside the chain storage box (1). A transmission mechanism is provided at the sprocket (4), and the transmission mechanism includes a transmission belt and a transmission wheel.

6. The chain-type window structure as described in claim 2, characterized in that, A protective box (7) is provided at the window connecting block (6). The protective box (7) includes a storage shell (701), a box cover (702), and a box side plate (703). The storage shell (701) and the box cover (702) are detachably and fixedly connected.

7. The chain-type window structure as described in claim 6, characterized in that, The side panel (703) of the box is inserted into the storage shell (701), and the side panel (703) is provided with an inlet and outlet that allows the window connecting block (6) to pass through.

8. A chain-type window structure as described in claim 6, characterized in that, The window connecting block (6) is provided with a guide rope (10), a guide seat (11) that slides with the guide rope (10), and a winding drum (12) for winding the guide rope (10).

9. A chain-type window structure as described in claim 8, characterized in that, The guide seat (11) is installed at the position of the frame (803) on the protective cover (8), and one end of the guide rope (10) is fixedly connected to the connecting part (801) in the protective cover (8).

10. A chain-type window structure as described in claim 9, characterized in that, The protective box (7) is provided with a winding bracket (13) that rotates with the winding drum (12) and a spring mechanism (14) that is mounted on the winding bracket (13) and connected to the winding drum (12).

Images