Manual roller shutter anti-falling device
The manually operated roller shutter anti-fall device, through the cooperation of the blocking and limiting components, solves the problem of accidental fall of roller shutter doors, achieves safe and reliable on-site protection, simplifies the device structure, and reduces costs.
Patent Information
- Application Number
- CN202520198319.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-07
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-02-07
AI Technical Summary
In the high-efficiency and fast-paced production and warehousing environments of existing roller shutter doors, electronic anti-fall devices are complex to install, costly, and unstable, making it difficult to effectively prevent roller shutters from falling accidentally and affecting the safety of on-site personnel and goods.
A manual roller shutter anti-fall device was designed, including a base, a fixed shaft, a stopper, a push rod, and a limiter. By manually operating the push rod, the stopper is rotated above the limiter to prevent the roller shutter from falling. The structure is simple and can quickly protect people and objects below in case of an accident.
It achieves rapid blocking and protection in the event of an accidental fall of the roller shutter door, ensuring on-site safety and reliability. It also features a simple structure, ease of use, and reduced installation and maintenance costs.
Smart Images
Figure CN223952575U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a roller shutter anti-falling technology field especially relates to a manual roller shutter anti-falling device. BACKGROUND
[0002] Various production, storage environment cannot leave using the roller shutter door, because by the space, environment and all aspects conditions influence, many places use the roller shutter door with height high, weight big, falling speed fast etc. UTILITY MODEL CONTENTS
[0003] The utility model discloses a manual roller shutter anti-falling device to solve the above-mentioned prior art problem, simple structure, convenient to use, effectively guarantee the roller shutter door below the on-site operating personnel and article safety reliable.
[0004] To realize above-mentioned purpose, the utility model provides the following scheme:
[0005] The utility model provides a manual roller shutter anti-falling device, include: base, fixed shaft, resistance piece, push rod and limit piece, the base is used for fixed connection in the wall or construction below the roller shutter door, the fixed shaft with the base vertical fixed connection and located one side below the roller shutter door to avoid the rising or the lowering of the roller shutter door, resistance piece with fixed shaft rotation is connected and can rotate to the roller shutter door directly below, limit piece with the base vertical fixed connection and located one side below the roller shutter door to avoid the rising or the lowering of the roller shutter door, limit piece sets up below the fixed shaft and is close to one side of the roller shutter door, and when resistance piece rotates to with limit piece above and contact, can limit resistance piece continues to rotate to make resistance piece can resist the roller shutter door of falling, push rod with the resistance piece one side away from the fixed shaft rotation is connected to drive resistance piece rotation.
[0006] Preferably, the base is fixedly connected with the wall or the structure below the roller shutter door through a plurality of bottom foot bolts.
[0007] Preferably, the utility model further includes a rotating shaft, the rotating shaft is sleeved on the outside of the fixed shaft and rotationally connected with the fixed shaft, and one end of the resistance piece is fixedly connected with the rotating shaft.
[0008] Preferably, the resistance piece is a first angle steel, a vertical plate of the first angle steel is provided with a spacing between the rotating shaft, and a horizontal plate of the first angle steel is used to contact and limit the resistance piece.
[0009] Preferably, the reinforcing member is fixedly connected to the lower side of the horizontal plate of the first angle steel and to the base.
[0010] Preferably, the limiting member is a second angle steel, and the vertical plate of the second angle steel is used to contact the horizontal plate of the first angle steel.
[0011] Preferably, the push rod shaft is rotatably connected to the end of the resisting member away from the fixed shaft, and the push rod is fixedly connected to the push rod shaft.
[0012] The present application has the following technical effects compared with the prior art.
[0013] The present application provides a manual roller shutter anti-falling device, when the roller shutter door is not used, the operator pushes the push rod, drives the resisting member to rotate around the fixed shaft, and makes the resisting member rotate and fall on the side of the limiting member away from the roller shutter door; when the roller shutter door needs to be completely lowered and closed, the operator pushes the push rod, rotates the resisting member to a position not affecting the lowering of the roller shutter door, and makes the roller shutter door smoothly fall and close; when the roller shutter door falls accidentally, the push rod is quickly pushed, the resisting member is driven to rotate around the fixed shaft, and the resisting member is rotated to the upper side of the limiting member and contacts; at this time, the limiting member limits the continuous rotation of the resisting member, and the resisting member is in a position capable of resisting the falling roller shutter door, plays a blocking, fixing and protecting role, has a simple structure, is convenient to use, and effectively ensures the safety and reliability of the on-site operators and articles under the roller shutter door. BRIEF DESCRIPTION OF DRAWINGS
[0014] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.
[0015] Fig. 1 The present application provides a structure schematic view of a manual roller shutter anti-falling device.
[0016] Fig. 2 The present application provides a structure schematic view of a base in a manual roller shutter anti-falling device.
[0017] Fig. 3 The present application provides a structure schematic view of a resisting member in a manual roller shutter anti-falling device.
[0018] Fig. 4 The present application provides a structure schematic view of a manual roller shutter anti-falling device in a state of preventing the falling of a roller shutter door.
[0019] Fig. 5A schematic diagram of the structure of the manual roller shutter anti-fall device provided by this utility model when it does not block the roller shutter;
[0020] In the diagram: 1. Base; 2. Anchor bolt; 3. Fixed shaft; 4. Stopping component; 5. Limiting component; 6. Push rod; 7. Rotating shaft; 8. Reinforcing component; 9. Push rod shaft; 10. Structure; 11. Roller shutter door. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] The purpose of this utility model is to provide a manual roller shutter anti-fall device to solve the problems existing in the prior art. It has a simple structure, is easy to use, and effectively ensures the safety and reliability of on-site personnel and items below the roller shutter.
[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0024] Example 1
[0025] This embodiment provides a manual roller shutter anti-fall device, such as... Figs. 1-5 As shown, it includes: a base 1, a fixed shaft 3, a stopper 4, a push rod 6, and a limiting member 5. The base 1 is used to be fixedly connected to the wall or structure 10 below the roller shutter door 11; the fixed shaft 3 is vertically fixedly connected to the base 1 and located on one side below the roller shutter door 11 to avoid the rising or falling of the roller shutter door 11; the stopper 4 is rotatably connected to the fixed shaft 3 and can rotate to be directly below the roller shutter door 11; the limiting member 5 is vertically fixedly connected to the base 1 and located on one side below the roller shutter door 11 to avoid the rising or falling of the roller shutter door 11. The limiting member 5 is located below the fixed shaft 3 and close to the side of the roller shutter 11. It can limit the rotation of the abutment 4 when it rotates to the point of contact with the limiting member 5, thus preventing the abutment 4 from further rotating and allowing it to block the descending roller shutter 11. The push rod 6 is rotatably connected to the side of the abutment 4 away from the fixed shaft 3, driving the abutment 4 to rotate. In the event of an accidental fall of the roller shutter 11, the rotatable abutment 4 and the limiting member 5 work together to effectively prevent the roller shutter 11 from falling, ensuring the safety of people and objects below. Simultaneously, the rational layout of each component avoids interference with the normal raising and lowering of the roller shutter 11.
[0026] In one preferred embodiment of the present application, the base 1 is fixedly connected to the wall or structure 10 below the roller shutter door 11 by a plurality of foot bolts 2. The use of the foot bolts 2 to fix the base 1 ensures the stability and firmness of the device, and the device can withstand the impact force generated when the roller shutter door 11 falls accidentally, preventing the device from loosening or shifting.
[0027] In one preferred embodiment of the present application, the manual roller shutter anti-falling device further comprises a rotating shaft 7, which is sleeved outside the fixed shaft 3 and is rotatably connected with the fixed shaft 3. One end of the stop piece 4 is fixedly connected with the rotating shaft 7. The rotating shaft 7 is provided to make the stop piece 4 rotate more smoothly around the fixed shaft 3, reduce the frictional resistance in the rotating process, and improve the reliability and service life of the device.
[0028] In one preferred embodiment of the present application, the base 1 is made of a steel plate with a thickness of 2.5 cm, a length of 30 cm, and a width of 20 cm. Four corners of the steel plate are respectively drilled with a circular hole with a diameter of 2.2 cm. The fixed shaft 3 is made of a solid cylindrical iron material with a diameter of 3 cm and a length of 13 cm. The rotating shaft 7 is made of a hollow cylindrical iron material with a diameter of 3.2 cm and a length of 12 cm. The push rod 6 is made of a solid cylindrical iron rod with a diameter of 2 cm and a length of 60 cm.
[0029] In one preferred embodiment of the present application, the stop piece 4 is a first angle steel. A vertical plate of the first angle steel is spaced apart from the rotating shaft 7. A horizontal plate of the first angle steel is used to contact and limit the stop piece 4. The first angle steel is used as the stop piece 4, which has high strength and stability, and can effectively resist the falling of the roller shutter door 11. The spacing design between the vertical plate and the rotating shaft 7 and the limiting effect of the horizontal plate ensure the positional accuracy and stability of the stop piece 4 during rotation and operation.
[0030] In one preferred embodiment of the present application, the manual roller shutter anti-falling device further comprises a reinforcing piece 8, which is fixedly connected below the horizontal plate of the first angle steel and is fixedly connected with the base 1. The reinforcing piece 8 is made of a solid iron block with a length of 8 cm, a width of 8 cm, and a height of 10 cm. The provision of the reinforcing piece 8 further enhances the overall strength and rigidity of the device, especially when resisting the falling of the roller shutter door 11, which can better withstand pressure and prevent the first angle steel from deforming or being damaged.
[0031] In one preferred embodiment of the present application, the limiting piece 5 is a second angle steel. A vertical plate of the second angle steel is used to contact the horizontal plate of the first angle steel. The limiting piece 5 is designed as a second angle steel, which cooperates well with the first angle steel, can accurately limit the rotating position of the stop piece 4, and ensure that the roller shutter door 11 can be timely and effectively blocked from falling when needed. The second angle steel is made of a triangular steel with a thickness of 1-1.5 cm.
[0032] In a preferred scheme of the embodiment, the manual roller shutter anti-falling device further comprises a push rod shaft 9, the push rod shaft 9 is rotationally connected with the end of the resistance piece 4 away from the fixed shaft 3, the push rod 6 is fixedly connected with the push rod shaft 9, the arrangement of the push rod shaft 9 makes the connection between the push rod 6 and the resistance piece 4 more flexible, facilitating the operation of the push rod 6 to drive the resistance piece 4 to rotate, and improving the convenience and operability of the device.
[0033] Embodiment two
[0034] The present disclosure also provides a manual roller shutter anti-falling device according to any one of the above, comprising the following steps:
[0035] I. Installation stage
[0036] The base 1 is fixed on the wall or structure 10 below the roller shutter door 11 through a plurality of foot bolts 2, to ensure that the base 1 is firmly and stably installed and can withstand various forces during the operation of the device.
[0037] The fixed shaft 3 is vertically and fixedly connected to the base 1 and located on the side below the roller shutter door 11 to avoid the rising or falling path of the roller shutter door 11, so as to ensure that it will not affect the normal lifting of the roller shutter door 11.
[0038] The rotating shaft 7 is installed outside the fixed shaft 3 and can rotate relative to the fixed shaft 3. Then one end of the resistance piece 4 (first angle steel) is fixedly connected with the rotating shaft 7.
[0039] The limiting piece 5 (second angle steel) is vertically and fixedly connected to the base 1 below the fixed shaft 3 and close to the side of the roller shutter door 11, also to avoid the rising or falling path of the roller shutter door 11.
[0040] The reinforcing piece 8 is fixedly connected below the horizontal plate of the first angle steel and is fixedly connected with the base 1.
[0041] The push rod shaft 9 is rotationally connected with the end of the resistance piece 4 away from the fixed shaft 3, and the push rod 6 is fixedly connected with the push rod shaft 9.
[0042] II. Normal use stage (the roller shutter door 11 is lifted or lowered without unexpected situations)
[0043] When the roller shutter door 11 is lifted, the resistance piece 4 (first angle steel) is rotated around the fixed shaft 3 by pushing the push rod 6, so that the resistance piece 4 falls behind the limiting piece 5 (second angle steel).
[0044] When the roller shutter door 11 needs to be completely lowered to close the door, the resistance piece 4 is also rotated by pushing the push rod 6 to a position that does not affect the lowering of the roller shutter door 11, so that the roller shutter door 11 can be smoothly lowered and closed.
[0045] III. Unexpected situation coping stage (the roller shutter door 11 falls unexpectedly)
[0046] When the rolling shutter door 11 falls unexpectedly, the push rod 6 is pushed quickly, the resistance piece 4 (the first angle steel) is driven to rotate around the fixed shaft 3, and the resistance piece 4 is rotated to above the limiting piece 5 (the second angle steel) and contacts.
[0047] At this time, the limiting piece 5 (the second angle steel) limits the resistance piece 4 from rotating continuously, the resistance piece 4 is in a position capable of resisting the falling rolling shutter door 11, and plays a blocking, fixing and protecting role.
[0048] Meanwhile, the reinforcing piece 8 and each connecting part jointly play a role, bear pressure, and prevent the device from being deformed or damaged.
[0049] In summary, the manual rolling shutter anti-falling device can effectively guarantee the safety below the rolling shutter door 11 under different conditions through reasonable design and operation process.
[0050] The principle and implementation mode of the present application are described by applying specific examples in the present application, and the above embodiment is only used to help understand the method and core idea of the present application; meanwhile, for the general technical personnel in the field, according to the idea of the present application, the specific implementation mode and application range will be changed. In conclusion, the content of the specification should not be understood as the limitation of the present application.
Claims
1. A manual roller blind fall arrest device characterised in that: The utility model relates to a fixed connection type door stopper for roller shutter door, which comprises: a base for fixed connection to the wall or structure below the roller shutter door; a fixed shaft vertically fixedly connected with the base and located at one side below the roller shutter door to avoid the rising or falling of the roller shutter door; a stopper rotatably connected with the fixed shaft and capable of rotating to the directly below of the roller shutter door; a limiting piece vertically fixedly connected with the base and located at one side below the roller shutter door to avoid the rising or falling of the roller shutter door, which is arranged below the fixed shaft and close to one side of the roller shutter door and capable of limiting the stopper from continuously rotating when the stopper rotates to above the limiting piece and contacts with the limiting piece so that the stopper can stop the falling roller shutter door; and a push rod rotatably connected with one side of the stopper away from the fixed shaft to drive the stopper to rotate.
2. The manual roller screen fall arrest device of claim 1, wherein: The base is fixedly connected with the wall or structure below the roller shutter door through a plurality of base bolts.
3. The manual roller screen fall arrest device of claim 1, wherein: Further comprising a rotating shaft sleeved outside the fixed shaft and rotatably connected with the fixed shaft, one end of the stopper is fixedly connected with the rotating shaft.
4. The manual roller screen fall arrest device of claim 3, wherein: The stopper is a first angle steel, a vertical plate of the first angle steel is provided with a space between the rotating shaft, and a horizontal plate of the first angle steel is used for contacting with the stopper and limiting.
5. The manual roller screen fall arrest device of claim 4, wherein: Further comprising a reinforcing piece fixedly connected below the horizontal plate of the first angle steel and fixedly connected with the base.
6. The manual roller screen fall arrest device of claim 5, wherein: The limiting piece is a second angle steel, a vertical plate of the second angle steel is used for contacting with the horizontal plate of the first angle steel.
7. The manual roller screen fall arrest device of claim 1, wherein: Further comprising a push rod shaft rotatably connected with one end of the stopper away from the fixed shaft, and the push rod is fixedly connected with the push rod shaft.