CN220621534U - Anti-falling device and safety door with same - Google Patents
Anti-falling device and safety door with same Download PDFInfo
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- CN220621534U CN220621534U CN202322099615.1U CN202322099615U CN220621534U CN 220621534 U CN220621534 U CN 220621534U CN 202322099615 U CN202322099615 U CN 202322099615U CN 220621534 U CN220621534 U CN 220621534U
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- 238000005303 weighing Methods 0.000 abstract 1
- 230000002265 prevention Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 9
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- 230000000694 effects Effects 0.000 description 7
- 238000012986 modification Methods 0.000 description 2
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Abstract
The application relates to a safety door that prevents weighing down device and have device. Anti-falling device and have device's emergency exit include: the anti-falling device comprises a clamping position, an anti-falling part, an elastic piece, a manipulator, a driving chain, a chain wheel, a door leaf and the anti-falling device. When the anti-falling device and the safety door with the anti-falling device are in actual use, the driving chain tightens and stretches the anti-falling part, and drives the anti-falling part to resist the elastic force of the elastic piece, so that the anti-falling part is in a first posture, and the driving chain normally drives the door leaf to move up and down. When the drive chain breaks, the anti-falling part is released, the door leaf falls down by a certain distance, and meanwhile, the elastic piece drives the anti-falling part to switch from the first posture to the second posture through the elastic force of the elastic piece, so that the hook is clamped with the clamping position, the door leaf is clamped at the clamping position by the anti-falling part, the door leaf is prevented from falling when the drive chain breaks, the second posture is more stable, and other anti-falling failure conditions possibly generated in modes such as friction anti-falling are avoided.
Description
Technical Field
The application relates to the technical field of safety door protection, in particular to a falling prevention device and a safety door with the falling prevention device.
Background
At present, the safety door of the mechanical arm of an enterprise is directly connected with a chain, when goods are placed in the safety door and carried out of the safety door, the safety door needs to be lifted so as to be passed by a forklift or personnel for carrying the goods, and in the process, the rocking handle needs to be manually rotated to lift the safety door. However, the safety door is lifted for a plurality of times for a long time, and the chain in the safety door result is worn for a long time, so that the safety door has potential falling risk caused by chain breakage in each lifting process, and has great threat to the personal safety of operators, and the safety production and operation of enterprises are affected.
The current safety door or lifting platform's anti-falling device, like patent document CN208762060U, adopts the brake blade to produce the friction with the guide rail of fixed setting in brake blade both sides and thereby realize anti-falling effect, when nevertheless appearing falling of safety door or lifting platform, carries out through the mode of friction and prevents falling friction direction and need carry out two degree of freedom restrictions of horizontal direction to apply the force of vertical direction, if brake blade appears not hard up or with the butt of guide rail insufficient along the horizontal direction in the anti-falling process, then can make anti-falling device inefficacy, therefore still have the potential safety hazard.
Disclosure of Invention
Based on this, it is necessary to provide a fall protection device and a safety door with the fall protection device, which are necessary to solve the problem that the fall protection device fails and has potential safety hazards if a brake blade is loose or insufficiently abutted against a guide rail in the horizontal direction in the fall protection process of the existing fall protection device.
A fall arrest device for use on a safety door, the fall arrest device comprising:
the clamping position is arranged on a door frame of the safety door;
the anti-falling part is provided with a hook at one end close to the door frame, one end of the anti-falling part far away from the door frame is connected with one end of a driving chain of the safety door, the anti-falling part is movably connected with the door leaf, and the anti-falling part is provided with a first gesture and a second gesture which are relatively movable to the door leaf; the hook is separated from the clamping position when the anti-falling part is in the first gesture, and the hook is clamped with the clamping position when the anti-falling part is in the second gesture; and
one end of the elastic piece is connected with the door leaf, and the other end of the elastic piece is connected with the anti-falling part;
when the driving chain tightens and stretches the anti-falling part, the anti-falling part is driven to resist the elastic force of the elastic piece, so that the anti-falling part is in the first posture; the anti-falling part is released when the driving chain breaks, and the elastic piece drives the anti-falling part to switch from the first posture to the second posture through self elastic force.
When the anti-falling device is in actual use, the driving chain is tightened and stretches the anti-falling part, the anti-falling part is driven to resist the elastic force of the elastic piece, so that the anti-falling part is in the first posture, the anti-falling part is not interfered with the door leaf or the door frame, and the driving chain normally drives the door leaf to move up and down, and the figure is referred to. When the drive chain breaks, the anti-falling part is released, the door leaf falls down by a certain distance, and when the door leaf falls down, the elastic piece drives the anti-falling part to switch from the first posture to the second posture through the self elastic force, so that the hook is clamped with the clamping position, and the figure is referred to, so that the door leaf is clamped at the clamping position by the anti-falling part, the door leaf is prevented from falling when the drive chain breaks, and meanwhile, the second posture is more stable due to the clamping of the hook and the clamping position, and the door leaf does not fall down completely, so that personnel can pass through quickly. Thus avoiding the situation of falling prevention failure possibly generated by other modes such as friction falling prevention and the like.
In an embodiment, the anti-falling device further comprises a first fixing member, the first fixing member is connected with the door leaf, and one end of the elastic member is connected with the first fixing member.
In an embodiment, the anti-falling portion is provided with a second fixing member, and the other end of the elastic member away from the first fixing member is connected with the second fixing member.
In an embodiment, the anti-falling portion is provided with a fixing pin, the fixing pin is disposed between the first fixing piece and the second fixing piece, and the fixing pin is located at one side of the elastic piece, which is away from the driving chain, and is abutted to the middle of the elastic piece.
In an embodiment, the fixing pin is provided with a pin head and a pin body, the inner diameter of the pin head is larger than that of the pin body, and the middle part of the elastic piece is abutted with the pin body and is positioned between the pin head and the anti-falling part.
In an embodiment, the anti-falling part is provided with a second fixing piece, and the second fixing piece is arranged between the fixing pin and the hook;
the elastic piece comprises a first elastic part and a second elastic part, one end of the first elastic part is connected with the first fixing piece, and the other end of the first elastic part is connected with the side surface, close to the second fixing piece, of the fixing pin;
one end of the second elastic part is connected with the second fixing piece, and the other end of the second elastic part is connected with the side surface, close to the first fixing piece, of the fixing pin.
In one embodiment, the fixing pin has a pin head and a pin body, the pin head having an inner diameter greater than an inner diameter of the pin body;
one end of the first elastic part is connected with the first fixing piece, and the other end of the first elastic part is connected with the side surface of the pin body, which is close to the second fixing piece, and is positioned between the pin head and the anti-falling part;
one end of the second elastic part is connected with the second fixing piece, and the other end of the second elastic part is connected with the side surface of the pin body, which is close to the first fixing piece, and is positioned between the pin head and the anti-falling part.
In an embodiment, the anti-falling device further comprises a limiting pin, and the limiting pin is connected with the door leaf;
the anti-falling part is also provided with an arc-shaped chute, and the anti-falling part and the door leaf are in sliding fit with the arc-shaped chute through the limiting pin to realize movable connection;
when the limiting pin is positioned at the first end of the arc chute, the anti-falling part is in the first posture;
when the limiting pin is positioned at the second end of the arc chute, the anti-falling part is in the second posture.
In an embodiment, the clamping position is a clamping groove or a clamping column.
An embodiment of the present application further provides a safety door, including: the anti-falling device comprises a manipulator, a driving chain, a chain wheel, a door leaf and the anti-falling device;
the chain wheel is rotationally connected with the door leaf;
the manipulator is connected with the chain wheel and used for driving the chain wheel to rotate;
the driving chain is meshed with the chain wheel, one end of the driving chain is connected with the anti-falling part, and the other end of the driving chain is used for retracting so as to enable the door leaf to lift or fall.
When the anti-falling device is in actual use, the chain wheel is rotationally connected with the door leaf, the manipulator is connected with the chain wheel and used for driving the chain wheel to rotate, the driving chain is meshed with the chain wheel, one end of the driving chain is connected with the anti-falling part, the other end of the driving chain is used for retracting and releasing, so that the door leaf is lifted or falls, the driving chain is stretched and stretched to stretch the anti-falling part, the anti-falling part is driven to resist the elastic force of the elastic piece, so that the anti-falling part is in a first posture, at the moment, the anti-falling part is not interfered with the door leaf or the door frame, and the driving chain normally drives the door leaf to move up and down. When the drive chain breaks, the anti-falling part is released, the door leaf falls down by a certain distance, and when the door leaf falls down, the elastic piece drives the anti-falling part to switch from the first posture to the second posture through the elastic force of the elastic piece, so that the hook and the clamping position are clamped by the anti-falling part, the door leaf is clamped at the clamping position, the door leaf is prevented from falling when the drive chain breaks, and meanwhile, the second posture is more stable due to the clamping of the hook and the clamping position, and the door leaf does not fall down completely, so that personnel can pass through quickly. Thus avoiding the situation of falling prevention failure possibly generated by other modes such as friction falling prevention and the like.
Drawings
Fig. 1 is a schematic structural view of a fall protection device of a safety door according to an embodiment in a first posture.
Fig. 2 is a schematic view of the fall arrest device of the safety door of fig. 1 in a second posture.
Fig. 3 is an enlarged view of the fall arrest device of fig. 2 in a second posture.
Reference numerals illustrate:
100-falling prevention device;
110-clamping position;
120-an anti-falling part; 121-a hook; 122-arc chute;
130-an elastic member; 131-a first elastic portion; 132-a second elastic portion;
140-a first securing member;
150-a second fixing member;
160-fixing pins;
170-a limiting pin;
210-a security gate; 211-driving a chain; 212-sprocket; 213-a manipulator;
220-door leaf;
230-door frame.
Detailed Description
In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.
In the description of the present application, it should be understood that, if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., these terms refer to the orientation or positional relationship based on the drawings, which are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.
In this application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
In this application, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.
Referring to fig. 3, fig. 3 is a schematic structural diagram of a fall protection device 100 according to an embodiment of the present application, where the fall protection device 100 according to an embodiment of the present application is used on a safety door 210, and the fall protection device 100 includes: the locking position 110, the anti-falling part 120 and the elastic member 130.
The clamping position 110 is arranged on the door frame 230 of the safety door 210. The end of the anti-falling part 120, which is close to the door frame 230, is provided with a hook 121, the end of the anti-falling part 120, which is far away from the door frame 230, is connected with one end of the driving chain 211 of the safety door 210, the anti-falling part 120 is movably connected with the door leaf 220, and the anti-falling part 120 has a first gesture and a second gesture which are movable relative to the door leaf 220. The hook 121 is separated from the clamping position 110 when the anti-falling part 120 is in the first posture, and the hook 121 is clamped with the clamping position 110 when the anti-falling part 120 is in the second posture. One end of the elastic member 130 is connected to the door leaf 220, and the other end of the elastic member 130 is connected to the fall preventing part 120.
When the anti-falling device 100 is in actual use, the driving chain 211 is tightened and stretches the anti-falling portion 120, so as to drive the anti-falling portion 120 to resist the elastic force of the elastic member 130, so that the anti-falling portion 120 is in the first posture, at this time, the anti-falling portion 120 does not interfere with the door leaf 220 or the door frame 230, and the driving chain 211 normally drives the door leaf 220 to move up and down, as shown in fig. 1. When the drive chain 211 breaks, the anti-falling part 120 is released, the door leaf 220 falls down by a certain distance, and when the door leaf 220 falls down, the elastic piece 130 drives the anti-falling part 120 to switch from the first posture to the second posture through the self elastic force, so that the hook 121 is clamped with the clamping position 110, and referring to fig. 2, the door leaf 220 is clamped at the clamping position 110 by the anti-falling part 120, thereby realizing the effect of preventing the door leaf 220 from falling when the drive chain 211 breaks, and meanwhile, the second posture is more stable due to the clamping of the hook 121 and the clamping position 110, and the door leaf 220 does not fall down completely, so that personnel can pass through quickly. Thus avoiding the situation of falling prevention failure possibly generated by other modes such as friction falling prevention and the like.
Specifically, the elastic member 130 is one of a spring and a torsion spring.
Referring to fig. 3, in an embodiment, the anti-falling device 100 further includes a first fixing member 140, where the first fixing member 140 is connected to the door leaf 220, and one end of the elastic member 130 is connected to the first fixing member 140, so that when the elastic member 130 is stretched, the position where the elastic member 130 is connected to the door leaf 220 is due to the connection with the first fixing member 140, so that the distance from the end where the elastic member 130 is connected to the door leaf 220 is the same as the distance from the end where the elastic member 130 is connected to the anti-falling portion 120, which prevents the elastic member 130 from shrinking unsmoothly due to friction between the elastic member 130 and the anti-falling portion 120, and prevents the anti-falling portion 120 from generating anti-falling failure due to insufficient rotation.
Referring to fig. 3, in an embodiment, the anti-falling portion 120 is provided with a second fixing member 150, and the other end of the elastic member 130 away from the first fixing member 140 is connected with the second fixing member 150, so that the shortest distance between the elastic member 130 and the door leaf 220 is the same throughout the elastic member 130 during the expansion and contraction process, so that the elastic member 130 expands and contracts smoothly, and friction between the elastic member 130 and the anti-falling portion 120 is prevented.
Referring to fig. 3, in an embodiment, the anti-falling portion 120 is provided with a fixing pin 160, the fixing pin 160 is disposed between the first fixing member 140 and the second fixing member 150, the fixing pin 160 is located on one side of the elastic member 130 away from the driving chain 211 and is abutted with the middle portion of the elastic member 130, so that when the driving chain 211 tightens and stretches the anti-falling portion 120, the fixing pin 160 generates a force with the middle portion of the elastic member 130, so that the elastic member 130 stretches, at this moment, the anti-falling portion 120 is in a first state, when the driving chain 211 breaks, the elastic member 130 elastically contracts, and generates a force on the fixing pin 160, so that the anti-falling portion 120 is switched from the first state to the second state, and the hook 121 is clamped with the clamping position 110, thereby playing an anti-falling effect.
Referring to fig. 3, in an embodiment, the fixing pin 160 has a pin head and a pin body, the inner diameter of the pin head is larger than the inner diameter of the pin body, and the middle portion of the elastic member 130 is abutted against the pin body and located between the pin head and the anti-falling portion 120, so that the elastic member 130 is always located between the pin head and the anti-falling portion 120 in the extending process, so that the elastic member 130 cannot slip in the process of abutting against the fixing pin 160, and the anti-falling effect is more stable.
Referring to fig. 3, in an embodiment, the anti-falling portion 120 is provided with a second fixing member 150, the second fixing member 150 is disposed between the fixing pin 160 and the hook 121, the elastic member 130 includes a first elastic portion 131 and a second elastic portion 132, one end of the first elastic portion 131 is connected to the first fixing member 140, and the other end is connected to a side of the fixing pin 160 adjacent to the second fixing member 150. One end of the second elastic part 132 is connected with the second fixing member 150, and the other end is connected with the side surface of the fixing pin 160, which is close to the first fixing member 140, so that the driving chain 211 tightens and stretches the anti-falling part 120, and drives the anti-falling part 120 to resist the elastic force of the first elastic member 130 and the second elastic member 130, so that the anti-falling part 120 is in the first posture, at this time, the anti-falling part 120 is not interfered with the door leaf 220 or the door frame 230, and the driving chain 211 normally drives the door leaf 220 to move up and down. When the driving chain 211 breaks, the anti-falling part 120 is released, the door leaf 220 falls down by a certain distance, and when the door leaf 220 falls down, the first elastic piece 130 and the second drive the anti-falling part 120 to switch from the first posture to the second posture through the self elastic force, so that the hook 121 is clamped with the clamping position 110, and the door leaf 220 is clamped at the clamping position 110 by the anti-falling part 120.
Referring to fig. 3, in one embodiment, the fixing pin 160 has a pin head (not shown) and a pin body (not shown), the pin head having an inner diameter greater than the pin body. One end of the first elastic part 131 is connected to the first fixing member 140, and the other end is connected to the side of the pin body near the second fixing member 150 and is located between the pin head and the fall preventing part 120. One end of the second elastic part 132 is connected with the second fixing member 150, and the other end is connected with the side surface of the pin body, which is close to the first fixing member 140, and is located between the pin head and the anti-falling part 120, so that the first elastic member 130 and the second elastic member 130 are limited by the pin head and the anti-falling part 120 in the process of rotating along with the anti-falling part 120, and the first elastic member 130 and the second elastic member 130 are prevented from sliding to one end, which is far away from the door leaf 220, of the fixing pin 160 in the stretching process.
Referring to fig. 3, in an embodiment, the fall protection device 100 further includes a stopper pin 170, where the stopper pin 170 is connected to the door leaf 220. The anti-falling part 120 is also provided with an arc chute 122, and the anti-falling part 120 and the door leaf 220 are in sliding fit with the arc chute 122 through a limiting pin 170 to realize movable connection. When the limiting pin 170 is located at the first end of the arc chute 122, the anti-falling portion 120 is in the first posture, and at this time, the hook 121 of the anti-falling portion 120 interferes with the clamping position 110. When the driving chain 211 breaks, the limiting pin 170 is located at the second end of the arc chute 122, the anti-falling portion 120 is in the second posture, and the hook 121 is clamped with the clamping position 110, so that anti-falling is achieved. Meanwhile, the sliding groove and the limiting pin 170 are matched to enable the anti-falling portion 120 to move in a certain range, so that the anti-falling portion 120 moves more stably, and meanwhile, when the rotating shaft is prevented from being arranged, the rotating shaft and the elastic piece 130 interfere, the movement of the anti-falling portion 120 is affected, and the anti-falling effect is further affected.
In an embodiment, the clamping position 110 is a clamping groove, and the hook 121 is clamped into the clamping groove when the anti-falling portion 120 is in the second posture, so as to achieve the anti-falling effect.
In an embodiment, the clamping position 110 is a clamping column, and the hook 121 hooks the clamping column when the anti-falling portion 120 is in the second posture, so as to achieve the anti-falling effect.
Referring to fig. 1-2, an embodiment of the present application further provides a safety door 210, the safety door 210 comprising: the robot 213, the drive chain 211, the sprocket 212, the door leaf 220, and the fall arrest device 100.
When the anti-falling device 100 is in actual use, the sprocket 212 is rotatably connected with the door leaf 220, the manipulator 213 is connected with the sprocket 212 to drive the sprocket 212 to rotate, the driving chain 211 is meshed with the sprocket 212, one end of the driving chain 211 is connected with the anti-falling portion 120, the other end of the driving chain 211 is used for retracting and releasing, so that the door leaf 220 is lifted or falls, the driving chain 211 is tightened and stretches the anti-falling portion 120, the anti-falling portion 120 is driven to resist the elastic force of the elastic member 130, so that the anti-falling portion 120 is in the first posture, at this time, the anti-falling portion 120 is not interfered with the door leaf 220 or the door frame 230, and the driving chain 211 normally drives the door leaf 220 to move up and down. When the drive chain 211 breaks, the anti-falling part 120 is released, the door leaf 220 falls down by a certain distance, and when the door leaf 220 falls down, the elastic piece 130 drives the anti-falling part 120 to switch from the first posture to the second posture through the self elastic force, so that the hook 121 is clamped with the clamping position 110, the door leaf 220 is clamped at the clamping position 110 by the anti-falling part 120, the door leaf 220 is prevented from falling when the drive chain 211 breaks, meanwhile, the second posture is more stable due to the clamping of the hook 121 and the clamping position 110, and personnel can pass through quickly. Thus avoiding the situation of falling prevention failure possibly generated by other modes such as friction falling prevention and the like.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.
Claims (10)
1. A fall arrest device for use on a safety door, the fall arrest device comprising:
the clamping position is arranged on a door frame of the safety door;
the anti-falling part is provided with a hook at one end close to the door frame, one end of the anti-falling part far away from the door frame is connected with one end of a driving chain of the safety door, the anti-falling part is movably connected with a door leaf, and the anti-falling part is provided with a first gesture and a second gesture which are relatively movable to the door leaf; the hook is separated from the clamping position when the anti-falling part is in the first gesture, and the hook is clamped with the clamping position when the anti-falling part is in the second gesture; and
one end of the elastic piece is connected with the door leaf, and the other end of the elastic piece is connected with the anti-falling part;
when the driving chain tightens and stretches the anti-falling part, the anti-falling part is driven to resist the elastic force of the elastic piece, so that the anti-falling part is in the first posture; the anti-falling part is released when the driving chain breaks, and the elastic piece drives the anti-falling part to switch from the first posture to the second posture through self elastic force.
2. The fall arrest device according to claim 1, further comprising a first fixing member connected to the door leaf, one end of the elastic member being connected to the first fixing member.
3. The fall arrest device according to claim 2, wherein the fall arrest portion is provided with a second fixing member, and the other end of the elastic member away from the first fixing member is connected to the second fixing member.
4. The fall protection device according to claim 3, wherein the fall protection portion is provided with a fixing pin, the fixing pin is disposed between the first fixing member and the second fixing member, and the fixing pin is located at a side of the elastic member facing away from the driving chain and abuts against a middle portion of the elastic member.
5. The fall arrest device according to claim 4, wherein the fixing pin has a pin head and a pin body, an inner diameter of the pin head is larger than an inner diameter of the pin body, and a middle portion of the elastic member abuts against the pin body and is located between the pin head and the fall arrest portion.
6. The fall arrest device according to claim 4, wherein the fall arrest portion is provided with a second fixing member disposed between the fixing pin and the hanger;
the elastic piece comprises a first elastic part and a second elastic part, one end of the first elastic part is connected with the first fixing piece, and the other end of the first elastic part is connected with the side surface, close to the second fixing piece, of the fixing pin;
one end of the second elastic part is connected with the second fixing piece, and the other end of the second elastic part is connected with the side surface, close to the first fixing piece, of the fixing pin.
7. The fall arrest device according to claim 6, wherein said securing pin has a pin head and a pin body, an inner diameter of said pin head being larger than an inner diameter of said pin body;
one end of the first elastic part is connected with the first fixing piece, and the other end of the first elastic part is connected with the side surface of the pin body, which is close to the second fixing piece, and is positioned between the pin head and the anti-falling part;
one end of the second elastic part is connected with the second fixing piece, and the other end of the second elastic part is connected with the side surface of the pin body, which is close to the first fixing piece, and is positioned between the pin head and the anti-falling part.
8. The fall arrest device according to claim 1, wherein,
the anti-falling device further comprises a limiting pin, and the limiting pin is connected with the door leaf;
the anti-falling part is also provided with an arc-shaped chute, and the anti-falling part and the door leaf are in sliding fit with the arc-shaped chute through the limiting pin to realize movable connection;
when the limiting pin is positioned at the first end of the arc chute, the anti-falling part is in the first posture;
when the limiting pin is positioned at the second end of the arc chute, the anti-falling part is in the second posture.
9. The fall arrest device according to claim 1, wherein the engagement location is a slot or a post.
10. A safety door, the safety door comprising: a robot, a drive chain, a sprocket, a door leaf, and a fall arrest device according to any one of claims 1 to 9;
the chain wheel is rotationally connected with the door leaf;
the manipulator is connected with the chain wheel and used for driving the chain wheel to rotate;
the driving chain is meshed with the chain wheel, one end of the driving chain is connected with the anti-falling part, and the other end of the driving chain is used for retracting so as to enable the door leaf to lift or fall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322099615.1U CN220621534U (en) | 2023-08-04 | 2023-08-04 | Anti-falling device and safety door with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322099615.1U CN220621534U (en) | 2023-08-04 | 2023-08-04 | Anti-falling device and safety door with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220621534U true CN220621534U (en) | 2024-03-19 |
Family
ID=90225047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322099615.1U Active CN220621534U (en) | 2023-08-04 | 2023-08-04 | Anti-falling device and safety door with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220621534U (en) |
-
2023
- 2023-08-04 CN CN202322099615.1U patent/CN220621534U/en active Active
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