Anti-falling device for roller shutter door and roller shutter door system
By designing an anti-fall device in the roller shutter door, and using the rotating shaft and limit switch to control the position of the baffle, the problem of roll shutter door failure and falling is solved, and a safe and reliable roll shutter door operation is achieved.
Patent Information
- Application Number
- CN202422261478.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-09-14
AI Technical Summary
Existing roller shutter doors are prone to fall when the suspension device or power supply system fails, which poses safety hazards and cannot effectively prevent damage to people and objects.
A fall-proof device is designed, including a base, a rotating shaft, a baffle, a positioning member and a limit switch. The baffle can be rotated to an expanded or stored position, the positioning member is fixed to the baffle position, and the limit switch controls the power to be turned on and off, ensuring that the baffle prevents falling in the event of a fault, and allows the door body to slide under normal conditions.
Effectively prevent the rolling shutter door from falling, ensure the safety of the person and object, prevent misoperation and damage, and improve the safety and reliability of the rolling shutter door system.
Smart Images
Figure CN223269903U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of rolling shutter doors, and in particular to a falling prevention device for rolling shutter doors and a rolling shutter door system. Background Art
[0002] Rolling doors are a common type of automatic door, widely used in commercial, industrial, and residential spaces. Their unique design, which utilizes a longitudinally folding mechanism to achieve door movement, effectively saves space while providing convenience and safety. Due to their small footprint and increased flexibility, silk-making workshops utilize multiple rolling doors. To ensure the safe and proper operation of rolling doors, preventing injuries and damage to property from falling is crucial. Utility Model Content
[0003] In order to at least partially solve the above problems, according to one aspect of the present application, an embodiment of the present application provides an anti-falling device for a rolling door, comprising a base, a rotating shaft, a baffle, and a positioning member, wherein the rotating shaft is fixedly arranged on the base; the baffle is arranged on the rotating shaft along the radial direction of the rotating shaft, and the baffle can rotate around the axis of the rotating shaft on the rotating shaft, and the baffle can be rotated to an expanded position for preventing the rolling door from falling and a storage position for not preventing the rolling door from falling; the positioning member is used to fix the baffle in the expanded position or the storage position; the base is opened along the circumference of the rotating shaft. A first positioning hole is provided; a second positioning hole and a third positioning hole are provided on the baffle along the circumference of the rotating axis, and the distances between the second positioning hole and the third positioning hole and the rotating axis are equal, and equal to the distance between the first positioning hole and the rotating axis; the positioning member can pass through the second positioning hole or the third positioning hole into the first positioning hole, wherein, when the baffle is in the expanded position, the positioning member passes through the second positioning hole into the first positioning hole to position the baffle in the expanded position, and when the baffle is in the stored position, the positioning member passes through the third positioning hole into the first positioning hole to position the baffle in the stored position.
[0004] In some embodiments, the anti-fall device also includes a limit switch, which is arranged on the base and is used to be connected in series between the driving mechanism and the power supply of the rolling door; wherein, the limit switch is configured as follows: when the baffle is in the extended position, the limit switch is disconnected, and when the baffle is in the stored position, the limit switch is closed.
[0005] In some embodiments, the second positioning hole and the third positioning hole form a 90° angle with the hole on the baffle through which the rotating shaft passes.
[0006] In some embodiments, the baffle is a pentagon having two pairs of parallel sides that are perpendicular to each other.
[0007] In some embodiments, the positioning member is a screw, and the positioning member is threadedly engaged with the first positioning hole.
[0008] In some embodiments, the base includes a "C"-shaped plate and a straight plate. The length of the straight plate is greater than the opening size of the "C"-shaped plate. The "C"-shaped plate is connected to the straight plate, and the opening of the "C"-shaped plate faces the straight plate. The straight plate is used for the installation of the anti-falling device. The rotating shaft, the baffle, and the limit switch are arranged on the "C"-shaped plate.
[0009] In some embodiments, the limit switch includes a limit switch body and a spring piece. One end of the spring piece is fixed on the limit switch body, and a pulley is arranged at the other end of the spring piece. When the baffle is in the retracted position, the edge of the baffle abuts against the pulley and compresses the spring piece, so that the limit switch is closed. When the baffle is in the deployed position, the edge of the baffle does not contact the pulley, and the spring piece does not deform, so that the limit switch is disconnected.
[0010] According to another aspect of the present application, an embodiment of the present application further provides a rolling shutter door system, which includes a rolling shutter door body, a slide rail, a driving mechanism, a power supply, and an anti-falling device for a rolling shutter door provided in any embodiment of the present application. The rolling shutter door body is slidably arranged on the slide rail; the driving mechanism is used to drive the rolling shutter door body to slide on the slide rail; the power supply is electrically connected to the driving mechanism; the anti-falling device is arranged adjacent to the slide rail. When the baffle of the anti-falling device is in the deployed position, the baffle interferes with the sliding of the rolling shutter door body on the slide rail. When the baffle is in the retracted position, the baffle does not interfere with the sliding of the rolling shutter door body on the slide rail.
[0011] In some embodiments, the number of anti-falling devices is two, and the two anti-falling devices are respectively arranged on both sides of the rolling shutter door body and at the same height.
[0012] The anti-falling device for a rolling shutter door and the rolling shutter door system provided by the embodiments of the present application, if a failure occurs in the rolling shutter door suspension device or the power supply system, causing the rolling shutter door to fall, can effectively support the rolling shutter door body through the baffle to prevent the rolling shutter door from falling and ensure the safety of people and objects around. In a preferred embodiment, the baffle is linked with the limit switch. When the baffle is in the deployed position, the limit switch is disconnected, thereby disconnecting the power supply of the rolling shutter door to prevent damage to the rolling shutter door due to incorrect operation of the rolling shutter door. When the baffle is in the retracted position, the limit switch is closed, and the power supply of the rolling shutter door is turned on, so that the rolling shutter door can be normally operated to close. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following description of the drawings is only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0014] Figure 1Schematic diagram of the structure of the anti-fall device provided in an embodiment of the present application;
[0015] Figure 2 is a structural schematic diagram of a fall prevention device provided by another embodiment of the present application;
[0016] Figure 3 2 is a schematic diagram of an anti-fall device provided in an embodiment of the present application, which is disposed adjacent to a slide rail and is in a stored position, wherein the anti-fall device is within a dotted frame;
[0017] Figure 4 1 is a schematic diagram of an anti-fall device provided in an embodiment of the present application, which is disposed adjacent to a slide rail and is in a deployed position, wherein the anti-fall device is within a dotted frame;
[0018] Figure 5 Schematic diagram of a baffle provided by an embodiment of the present application rotating on a rotation shaft around the axis of the rotation shaft, wherein the baffle is in an extended position in the left figure, in a stowed position in the right figure, and in a position between the extended and stowed positions in the middle figure;
[0019] Figure 6 is a front view of the anti-fall device provided in an embodiment of the present application;
[0020] Figure 7 It is a side view of the anti-fall device provided in an embodiment of the present application.
[0021] The reference numerals are as follows:
[0022] 1. Expansion screw; 2. Positioning piece; 3. Limit switch; 4. Rotating shaft; 5. Baffle; 6. Base.
[0023] It should be understood that the size of each part shown in the drawings is not drawn according to the actual proportional relationship.In addition, the same or similar reference numerals represent the same or similar components. DETAILED DESCRIPTION
[0024] The following will clearly and completely describe the technical solutions of the preferred embodiments of the present application in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection claimed in this application.
[0025] The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Terms such as "include" or "comprises" mean that the elements preceding the term encompass the elements listed after the term, and do not exclude the possibility of also encompassing other elements. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.
[0026] like Figure 1-Figure 7 As shown, according to one aspect of the present application, an embodiment of the present application provides an anti-falling device for a rolling shutter door, the anti-falling device includes a base 6, a rotating shaft 4, a baffle 5, a positioning member 2 and a limit switch 3; the axis of the rotating shaft 4 is fixedly set on the base 6; the baffle 5 is set on the rotating shaft 4, and the baffle 5 can rotate around the axis of the rotating shaft 4 on the rotating shaft 4, and the baffle 5 can be rotated to an expanded position for preventing the rolling shutter door from falling and a storage position for not preventing the rolling shutter door from falling; the positioning member 2 is used to fix the baffle 5 in the expanded position or the storage position, so that the baffle 5 can reliably support the rolling shutter door.
[0027] Combine Figure 6 A first positioning hole is provided on the base 6 along the circumference of the rotating shaft 4; a second positioning hole and a third positioning hole are provided on the baffle 5 along the circumference of the rotating shaft 4, and the distances between the second positioning hole and the third positioning hole and the rotating shaft 4 are equal, and equal to the distance between the first positioning hole and the rotating shaft 4. The positioning member 2 can pass through the second positioning hole or the third positioning hole into the first positioning hole, wherein, when the baffle 5 is in the deployed position, the positioning member 2 passes through the second positioning hole into the first positioning hole to position the baffle 5 in the deployed position, and when the baffle 5 is in the retracted position, the positioning member 2 passes through the third positioning hole into the first positioning hole to position the baffle 5 in the retracted position. In this embodiment, the positioning member 2 realizes the positioning of the baffle 5 in the above manner. In other embodiments, two positioning holes can be provided on the base 6, and one or more positioning holes can be provided on the baffle 5.
[0028] The anti-falling device and rolling door system for rolling shutter doors provided in the embodiments of the present application can effectively catch and drag the rolling shutter door body through the baffle 5 if a failure occurs in the rolling shutter door suspension device or the power supply system, thereby preventing the rolling shutter door from falling and ensuring the safety of people and objects around.
[0029] like Figure 2As shown, in some embodiments, the anti-falling device further includes a limit switch 3. The limit switch 3 is disposed on the base 6 and is used to be connected in series between the driving mechanism of the rolling shutter door and the power supply. Among them, the limit switch 3 is configured such that when the baffle 5 is in the deployed position, the limit switch 3 is disconnected, and when the baffle 5 is in the retracted position, the limit switch 3 is closed. Exemplarily, the limit switch 3 can be a mechanical switch, a photoelectric proximity switch, a magnetic induction switch, etc. In this embodiment, the baffle 5 is linked with the limit switch 3. When the baffle 5 is in the deployed position, the limit switch 3 is disconnected, thereby disconnecting the power supply of the rolling shutter door to prevent damage to the rolling shutter door due to misoperation; when the baffle 5 is in the retracted position, the limit switch 3 is closed, and the power supply of the rolling shutter door is turned on, so that the rolling shutter door can be normally operated to close.
[0030] In some embodiments, the second positioning hole and the third positioning hole form a 90° angle with the hole on the baffle 5 through which the rotating shaft 4 passes. In this embodiment, with this setting method, the baffle 5 can be rotated 90° from the deployed position to the retracted position. For example, the baffle 5 can be rotated from a horizontal state to a vertical state, thereby completing the switching from the deployed position to the retracted position.
[0031] In some embodiments, the baffle 5 is a pentagon with two pairs of parallel sides, and the two pairs of parallel sides are perpendicular to each other. The longest side among the two groups of parallel sides of the baffle 5 can be used to support the rolling shutter door, and the hypotenuse of the baffle 5 can strengthen the strength of the baffle 5 along the force direction.
[0032] In some embodiments, the positioning member 2 is a screw, and the positioning member 2 is in threaded cooperation with the first positioning hole. In this embodiment, through the threaded cooperation method, the positioning member 2 can be prevented from falling off, improving safety. Of course, in other embodiments, the positioning member 2 can also be a straight rod without threads.
[0033] Combined Figure 7 , in some embodiments, the base 6 includes a "C"-shaped plate and a straight plate. The length of the straight plate is greater than the opening size of the "C"-shaped plate. The "C"-shaped plate is connected to the straight plate, and the opening of the "C"-shaped plate faces the straight plate. The straight plate is used for the installation of the anti-falling device. The rotating shaft 4, the baffle 5, and the limit switch 3 are disposed on the "C"-shaped plate. Exemplarily, the rotating shaft 4 can be a screw structure, and the rotating shaft 4 is fixed on the "C"-shaped plate through a nut. Through holes can be provided at the four corners of the straight plate, and the straight plate is fixed to the wall beside the rolling shutter door rail through the expansion screw 1.
[0034] In some embodiments, the limit switch 3 includes a limit switch body and a spring. One end of the spring is fixed to the limit switch body, and the other end of the spring is provided with a pulley. When the baffle 5 is in the stowed position, the edge of the baffle 5 contacts the pulley and compresses the spring, closing the limit switch 3. When the baffle 5 is in the deployed position, the edge of the baffle 5 does not contact the pulley, and the spring does not deform, opening the limit switch 3. In this embodiment, the limit switch 3 with the above-described structure controls the on-off of the circuit, providing stable and reliable operation. The pulley and baffle 5 can achieve rolling friction, reducing wear on the spring.
[0035] According to another aspect of the present application, an embodiment of the present application further provides a rolling door system, which includes a rolling door body, a slide rail, a drive mechanism, a power supply, and an anti-fall device for a rolling door provided in any embodiment of the present application, wherein the rolling door body is slidably disposed on the slide rail; the drive mechanism is used to drive the rolling door body to slide on the slide rail; the power supply is electrically connected to the drive mechanism; the anti-fall device is disposed adjacent to the slide rail, and when the baffle 5 of the anti-fall device is in the deployed position, the baffle 5 interferes with the sliding of the rolling door body on the slide rail, and when the baffle 5 is in the retracted position, the baffle 5 does not interfere with the sliding of the rolling door body on the slide rail. In some embodiments, a limit switch 3 of the anti-fall device is connected in series between the drive mechanism and the power supply, and the limit switch 3 is configured such that: when the baffle 5 is in the deployed position, the limit switch 3 is disconnected, and when the baffle 5 is in the retracted position, the limit switch 3 is closed.
[0036] In some embodiments, there are two anti-fall devices, each of which is provided on either side of the rolling door body and positioned at the same height. In this embodiment, by supporting the rolling door body with two anti-fall devices, the rolling door can be more reliably supported, thereby increasing safety.
[0037] Combine Figure 3 The anti-fall device provided in the embodiment of the present application can adjust the position of the baffle 5 by manually adjusting the positioning member 2. Figure 3 The status of the left picture is adjusted to Figure 3 In the state shown in the right figure, the baffle 5 will reach the set unfolded position and the stowed position in turn, and the limit switch 3 will automatically turn off or on the power supply of the rolling door.
[0038] The anti-fall device provided in the embodiment of the present application has the following features: when the baffle 5 is in a horizontal state (anti-fall mode on), the inductive magnetic disc of the limit switch 3 is not closed, and the power supply of the rolling shutter door is disconnected. If a failure occurs in the rolling shutter door suspension device or power system, causing the rolling shutter door to fall, the baffle 5 can effectively support the rolling shutter door body, protecting the safety of people and objects around it. When the baffle 5 is in a vertical state (anti-fall mode off), the inductive magnetic disc of the limit switch 3 is closed, and the power supply of the rolling shutter door is on. At this time, the automatic opening and closing system of the rolling shutter door can be used normally without damaging the door body. The anti-fall device can be designed with metal materials, making it durable, stable, and highly safe, and has a wide range of applications.
[0039] Based on the above-mentioned embodiments of the present application, in the absence of explicit negation or conflict, the technical features of one embodiment may be beneficially combined with one or more other embodiments.
[0040] Although some specific embodiments of the present application have been described in detail through examples, those skilled in the art will understand that the above examples are for illustration only and are not intended to limit the scope of the present application. Those skilled in the art will understand that the above embodiments may be modified or some technical features may be replaced with equivalents without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.
Claims
1. A falling prevention device for a rolling door, characterized in that: Comprising: A base; A rotating shaft fixedly arranged on the base; A baffle plate arranged radially along the rotating shaft, the baffle plate can rotate around the axis of the rotating shaft, and the baffle plate can rotate to an unfolded position for blocking the fall of the rolling shutter door and a storage position not for blocking the fall of the rolling shutter door; A positioning member for fixing the baffle plate at the unfolded position or the storage position; A first positioning hole is formed in the base along the circumferential direction of the rotating shaft; A second positioning hole and a third positioning hole are formed in the baffle plate along the circumferential direction of the rotating shaft, the distances between the second positioning hole and the third positioning hole and the rotating shaft are equal and equal to the distance between the first positioning hole and the rotating shaft; The positioning member can pass through the second positioning hole or the third positioning hole and enter the first positioning hole. When the baffle plate is in the unfolded position, the positioning member passes through the second positioning hole and enters the first positioning hole to position the baffle plate at the unfolded position. When the baffle plate is in the storage position, the positioning member passes through the third positioning hole and enters the first positioning hole to position the baffle plate at the storage position.
2. The anti-fall device according to claim 1, characterized in that: Further comprising: A limit switch arranged on the base, the limit switch is used to be connected in series between the driving mechanism of the rolling shutter door and the power supply; wherein, The limit switch is configured such that when the baffle plate is in the unfolded position, the limit switch is disconnected, and when the baffle plate is in the storage position, the limit switch is closed.
3. The anti-falling device according to claim 1, wherein The second positioning hole and the third positioning hole form a 90° angle with the hole on the baffle plate through which the rotating shaft passes.
4. The anti-falling device according to claim 1, wherein The baffle plate is a pentagon with two pairs of parallel sides, and the two pairs of parallel sides are perpendicular to each other.
5. The anti-falling device according to claim 1, wherein The positioning member is a screw rod, and the positioning member is in threaded fit with the first positioning hole.
6. The anti-falling device according to claim 2, wherein The base includes a "C"-shaped plate and a straight plate, the length of the straight plate is greater than the opening size of the "C"-shaped plate, the "C"-shaped plate is connected to the straight plate, the opening of the "C"-shaped plate faces the straight plate, the straight plate is used for the installation of the anti-falling device, and the rotating shaft, the baffle plate, and the limit switch are arranged on the "C"-shaped plate.
7. The anti-falling device according to claim 2, wherein The limit switch includes a limit switch body and a spring piece, one end of the spring piece is fixed on the limit switch body, and the other end of the spring piece is provided with a pulley; When the baffle plate is in the storage position, the edge of the baffle plate abuts against the pulley and compresses the spring piece to make the limit switch closed; When the baffle plate is in the unfolded position, the edge of the baffle plate does not contact the pulley, and the spring piece does not deform, so that the limit switch is disconnected.
8. A rolling door system, characterized in that: Comprising: The rolling shutter door body; A slide rail, on which the rolling door body is slidably arranged; A driving mechanism, the driving mechanism is used to drive the rolling door body to slide on the slide rail; a power supply electrically connected to the driving mechanism; The anti-falling device for a rolling door as described in any one of claims 1 to 7, wherein the anti-falling device is arranged adjacent to the slide rail, and when the baffle of the anti-falling device is in the deployed position, the baffle interferes with the sliding of the rolling door body on the slide rail, and when the baffle is in the stored position, the baffle does not interfere with the sliding of the rolling door body on the slide rail.
9. The rolling door system according to claim 8, characterized in that: There are two anti-falling devices, which are respectively arranged on both sides of the rolling door body and at the same height.