CN210976554U

CN210976554U - Induction type anti-falling device for lifting scaffold

Info

Publication number: CN210976554U
Application number: CN201921736529.4U
Authority: CN
Inventors: 赵士光
Original assignee: Shandong Chuangzao Construction Technology Co ltd
Current assignee: Shandong Chuangzao Construction Technology Co ltd
Priority date: 2019-10-16
Filing date: 2019-10-16
Publication date: 2020-07-10
Anticipated expiration: 2029-10-16

Abstract

The utility model provides an induction type anti-falling device for lifting foot hand rack, including supporting component, anti-falling component, reset assembly, link assembly and response transmission. The anti-falling assembly comprises an anti-falling strip, a swinging strip, a braking strip, a sliding shaft and a five-tooth gear. The swing strip is movably connected to the left end of the second connecting rod and is in contact with the anti-falling strip in a natural state, and can be elongated through the telescopic hole and be in contact with the five-tooth gear in a rapid descending state, and the anti-falling strip is driven to slide towards the right side under the action of the five-tooth gear and the swing strip to clamp the main anti-falling block, so that the braking purpose is achieved; run through in the second connecting rod about the sliding shaft, link up with the braking strip and stretch into the bar hole on the braking strip, utilize braking strip and reset spring can drive the sliding shaft shrink or stretch out to realize operating condition and braking state's conversion, can realize the scaffold frame accident and fall the quick braking of in-process through duplicate protection device, full play prevents weighing down the function, reduces the occurence of failure.

Description

Induction type anti-falling device for lifting scaffold

Technical Field

The utility model belongs to the technical field of the building engineering and specifically relates to a lifting foot hand rack is with induction type anti-falling device is related to.

Background

The lifting scaffold is construction equipment used for construction sites of high-rise and super high-rise buildings, is low in cost and simple in structure, can reduce installation operators and greatly improve the construction efficiency compared with the traditional scaffold, and is widely applied to the construction industry. The lifting function of the lifting scaffold changes the high-altitude operation into the low-altitude operation and changes the suspended operation into the internal operation of the frame body, thereby greatly facilitating the construction operation of building construction and decoration engineering. However, the frame body is lifted, descended and used, and a falling event happens sometimes, which causes serious harm to the life safety of constructors.

Anti-falling device for scaffold frame adopts voussoir braking to press from both sides the form of preventing falling such as tight wire rope formula, steel davit formula, and its overall structure and transmission form are comparatively complicated, the reliability is relatively poor to wire rope quality problems probably leads to the secondary to fall and takes place, also has similar condition to steel davit formula.

SUMMERY OF THE UTILITY MODEL

The utility model provides an induction type anti-falling device for lifting foot hand rack, this equipment can solve the shortcoming among the above prior art, and the structure is simpler, compact, and the quick braking of duplicate protection mechanism improves security and reliability.

In order to achieve the above object, the utility model provides a following technical scheme: an induction type anti-falling device for a lifting scaffold, wherein the lifting scaffold comprises a frame body guide rail and an anti-falling block, the anti-falling block is arranged on the frame body guide rail, and the anti-falling device comprises a supporting assembly, an anti-falling assembly, a reset assembly, a connecting rod assembly and an induction transmission device; the anti-falling assembly comprises an anti-falling strip, a swinging strip, a braking strip, a sliding shaft and a five-tooth gear; the support assembly comprises a first support assembly, a second support assembly and a third support assembly, the first support assembly is vertically connected with the second support assembly and is used for connecting a wall-attached vertical plate and a frame body guide rail, the lower part of the second support assembly is fixedly connected with the third support assembly, the other end of the third support assembly is connected with the wall-attached vertical plate, and a motor and a five-tooth gear are mounted on the third support assembly; the connecting rod assembly comprises a first connecting rod and a second connecting rod, the second connecting rod is movably connected with the second supporting assembly, the first connecting rod is provided with the sensing transmission device and is movably connected with the second connecting rod, and the second connecting rod is in pin joint with the swinging strip; the resetting component is arranged on the second connecting rod and is used for resetting when the resetting component is contacted with the anti-falling block and bounces; the anti-falling strip is rotationally connected with the second support component, inclines to the left side of the second support component and is in contact with the swinging strip; the brake strip is arranged at the middle upper part of the second support component, and the sliding shaft penetrates through the second connecting rod left and right, is connected with the brake strip and extends into the strip-shaped hole in the brake strip; and the five-tooth gear is movably connected to the middle part of the third supporting component through a pin shaft, and a belt is arranged on the five-tooth gear and connected with the motor.

Preferably, the swing strip is provided with a telescopic hole, and the limiting protrusion is embedded in the telescopic hole and can reciprocate in the telescopic hole to prolong the length of the swing strip.

Preferably, the anti-falling strip is inverted pear-shaped and is connected with the second supporting component through a pin shaft.

Preferably, the anti-falling strip limiting plate is arranged on the second supporting component and used for limiting the rotation range of the anti-falling strip.

Preferably, the reset component is a reset spring and can drive the second connecting rod to move.

Preferably, the brake bar device further comprises a brake bar baffle, the brake bar baffle is located on the side face of the second connecting rod, and when the sliding shaft drives the brake bar to punch out of the second connecting rod, a limiting effect is achieved.

Preferably, the induction transmission device is a wireless signal receiving module, receives the rapid falling signal and starts the motor to drive the five-tooth gear to rotate clockwise.

Preferably, the five-tooth gear can push the anti-falling strip to rotate to the right side of the second supporting component through the swinging strip, and the anti-falling strip can extend into the frame body guide rail and is in contact with the guide rail anti-falling block.

Preferably, the braking strip and the resetting component can drive the sliding shaft to retract or extend, and the sliding shaft can extend out of the second connecting rod.

Compared with the prior art, the beneficial effects of the utility model are that: the anti-falling protection device can improve the utilization rate of the scaffold in practical application, fully play the protection function of the outer frame and avoid the adverse effect of accidental factors and natural factors on the high-altitude operation of the scaffold; the anti-falling bar is clamped, the anti-falling block is braked, and the sliding shaft drives the second connecting rod to brake, so that the dual protection is realized, the design is delicate, and the safety is improved.

Other features of the present disclosure and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

FIG. 1 is an induction type anti-falling device for a lifting scaffold of the present invention;

attach wall riser 1, support body guide rail 2, prevent weighing down subassembly 3, supporting component 4, first supporting component 401, second supporting component 402, third supporting component 403, link assembly 5, first connecting rod 501, second connecting rod 502, prevent weighing down block 6, motor 7, five-tooth gear 8, round pin axle 9, induction drive device 10, swing strip 11, concertina hole 12, prevent weighing down strip 13, braking strip 14, bar hole 15, sliding shaft 16, reset assembly 17, prevent weighing down strip limiting plate 18, braking strip baffle 19, spacing arch 20, belt 21.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Spatially relative terms, such as "above … …," "intermediate," "at … … end," "at the other end," and the like, may be used herein for ease of description to describe one element or feature's spatial relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The utility model relates to an induction type anti-falling device for lifting foot hand rack, refer to FIG. 1, its concrete implementation is:

the frame body 1 of the lifting scaffold is connected with the frame body guide rail 2, the frame body guide rail 2 is lifted along with the frame body, a plurality of guide rail anti-falling blocking blocks 6 distributed at intervals along the height direction of the frame body guide rail 2 are further arranged on the frame body guide rail 2, and the connecting rod assembly 5 can stretch into the frame body guide rail 2 and interfere with the track of the guide rail anti-falling blocking blocks 5 to some extent.

The anti-falling device comprises a supporting component 4, an anti-falling component 5, a reset component 17, a connecting rod component 5 and an induction transmission device 10.

In a specific embodiment, the supporting assembly 4 includes a first supporting assembly 401, a second supporting assembly 402 and a third supporting assembly 403, the first supporting assembly 401 is vertically connected to the second supporting assembly 402 and is used for connecting a wall-attached vertical plate 1 and a frame body guide rail 2, the lower portion of the second supporting assembly 402 is fixedly connected to the third supporting assembly 403, the other end of the third supporting assembly 403 is connected to the wall-attached vertical plate 1, and a motor 7 and a five-tooth gear 8 are mounted on the third supporting assembly 403.

The connecting rod assembly 5 comprises a first connecting rod 501 and a second connecting rod 502, the second connecting rod 502 is movably connected with the second supporting assembly 402, the first connecting rod 501 is provided with the sensing transmission device 10 and is movably connected with the second connecting rod 502, and the second connecting rod 502 is connected with the swinging strip 11 in a pin mode. The second connecting rod 502 can move towards the left side of the second support component 402 under the pushing of the moving guide rail anti-falling block 6, and then the swing strip 11 is driven to push the anti-falling strip 13 to the right, so that effective power transmission is realized. Specifically, the port on the right side of the second connecting rod 502 is set to be a semicircular surface, so that the impact of the guide rail anti-falling block 6 on the second connecting rod 502 can be effectively reduced, and the guide rail anti-falling block 6 can smoothly push the second connecting rod 502.

The reset component 17, specifically a reset spring, is mounted on the second connecting rod 502, and is used for resetting when contacting with the anti-falling block 6 and popping out. The spring can be in a natural state when the second link 502 is not pushed by the rail fall arrest block 6. When the frame body guide rail 2 descends or ascends at a constant speed, the state of the spring can be changed along with the pushing of the guide rail anti-falling block 6 by the second connecting rod 502, so that elastic restoring force is provided for the second connecting rod 502, and the second connecting rod 502 is driven to reset to a preset position after the pushing force of the guide rail anti-falling block 6 is removed.

The inductive driving device 10, specifically an inductor, is fixed on the first connecting rod 501, and can control the motor 7 to rotate. When the frame guide rail 2 descends or ascends at a constant speed, the second connecting rod 502 drives the first connecting rod 501 to move slowly, and the sensor does not receive a wireless signal; when the frame body guide rail 2 descends rapidly, the anti-falling block 6 pushes the second connecting rod 502 to move towards the left side continuously, the second connecting rod 502 drives the first connecting rod 501 to move in an accelerated mode, and the sensor receives a wireless signal to start the motor 7 to rotate.

The fall arrest assembly 3 comprises a fall arrest bar 13, a swing bar 11, a brake bar 14, a sliding shaft 16 and a five-toothed gear 8.

Prevent weighing down strip 13 and pass through round pin axle swing joint for falling the pear shape and focus at the left end of second supporting component 402 and second supporting component 402, prevent weighing down strip 13 because of the focus is towards the left side of second supporting component 402 to with swing strip 11 contact. The swing strip 11 is provided with a telescopic hole 15, and the limiting bulge 20 is embedded in the telescopic hole 15 and can reciprocate in the telescopic hole 15 to prolong the length of the swing strip 11. When the frame body guide rail 2 descends or ascends at a constant speed, the swing strip 11 pushes the anti-falling strip 13 to rotate to the right side of the second support rod 402, the gravity center of the anti-falling strip 13 is still on the left side of the second support rod 402 due to limited thrust, and the anti-falling strip 13 resets under the action of gravity; when the frame body guide rail 2 descends rapidly, the swing strip 11 pushes the anti-falling strip 13 to move towards the right side of the second support rod 402, and the larger thrust force enables the gravity center of the anti-falling strip 13 to move towards the right so as to slide downwards to block the main anti-falling block 6.

The five-tooth gear 8 is connected to the middle of the third supporting component 403 through a pin shaft 9 and connected with the motor 7 through a belt 21, and the motor 7 receives a wireless signal of the sensor and can drive the five-tooth gear 8 to rotate clockwise. When the frame body guide rail 2 descends rapidly, the length of the swing strip 11 is prolonged to be in contact with the five-tooth gear 8, and the swing strip 11 pushes the anti-falling strip 13 rightwards under the action of the gear.

In another specific embodiment, the fall protector 13 is further provided with a fall protector limiting plate 18, and the fall protector limiting plate 18 is disposed on the second support component 402 and is used for limiting the rotation range of the fall protector 13.

In a particular embodiment, the fall arrest device further comprises a brake bar 14 and a sliding shaft 16, the brake bar 14 being disposed at an upper middle portion of the second support assembly 402; the sliding shaft 16 penetrates through the second connecting rod 502 from left to right, is connected with the brake strip 14 and extends into the strip-shaped hole 15 on the brake strip 14, and the sliding shaft 16 can extend to the middle of the guide rail anti-falling block 6 to play a braking role. And a braking strip baffle 19 is arranged on the side surface of the second connecting rod 502, and plays a limiting role when the sliding shaft 16 drives the braking strip 14 to punch out of the second connecting rod 502.

The specific movement process is as follows: when the frame body of the lifting scaffold is under the working condition of uniform lifting or descending, the guide rail anti-falling block 6 can be in contact with the second connecting rod 502 and push the second connecting rod to the left side when moving, the swing strip 11 and the sliding shaft 16 on the second connecting rod 502 move to the opposite direction, namely the right side, under the action of inertia, the swing strip 11 pushes the anti-falling strip 13 originally facing to the left side of the second support assembly 402 to rotate to the right side of the second support assembly 402, the power transmitted due to uniform motion of the frame body guide rail is small, the gravity center of the anti-falling strip 13 cannot be pushed to the right side of the second support assembly 402 by the second connecting rod 502, and the anti-falling strip 13 cannot play a; meanwhile, the reset assembly 17 pulls the second connecting rod 502 and the sliding shaft 16 to return to the original position, the second connecting rod 502 drives the first connecting rod 501 to move slowly, the sensor does not receive a wireless signal, and the rack guide rail 2 can move normally.

When the frame body of the lifting scaffold falls rapidly, the guide rail anti-falling block 6 pushes the guide rail anti-falling block away along the tail end of the second connecting rod 502 when falling, because the frame body descends rapidly, the power transmitted by the frame body guide rail 2 to the second connecting rod 502 is large, the speed of the swing strip 11 on the second connecting rod 502 extending out of the telescopic hole 12 and pushing the anti-falling strip 13 is also large, meanwhile, the second connecting rod 502 drives the first connecting rod 501 to move, the sensor receives a wireless signal to start the motor 7, the motor 7 drives the five-tooth gear 8 to rotate clockwise, the five-tooth gear 8 further transmits large thrust to the swing strip 11, and finally the gravity center of the anti-falling strip 13 is pushed to the right side of the second supporting component 402, and the anti-falling strip 13 is clamped in the middle of the anti-falling block 6; during the falling process, because the left thrust of the second connecting rod 502 is larger, the reset component 17 is difficult to reset, the sliding shaft 16 drives the braking strip 14 to rush out of the second connecting rod 502 to block the anti-falling block 6 under the inertia effect, and the braking strip baffle 19 blocks the braking strip 14 to prevent the braking strip 14 from completely falling out. The braking of the frame body is rapidly finished under the double protection, and the loss of personnel and property is reduced.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An induction type anti-falling device for a lifting scaffold is characterized by comprising a frame body guide rail (2) and an anti-falling block (6), wherein the anti-falling block (6) is installed on the frame body guide rail (2), and the anti-falling device comprises a supporting assembly (4), an anti-falling assembly (3), a reset assembly (17), a connecting rod assembly (5) and an induction transmission device (10); the anti-falling assembly (3) comprises an anti-falling strip (13), a swinging strip (11), a braking strip (14), a sliding shaft (16) and a five-tooth gear (8);

the supporting assembly (4) comprises a first supporting assembly (401), a second supporting assembly (402) and a third supporting assembly (403), the first supporting assembly (401) is vertically connected with the second supporting assembly (402) and is used for connecting an attached vertical wall plate (1) and a frame body guide rail (2), the lower portion of the second supporting assembly (402) is fixedly connected with the third supporting assembly (403), the other end of the third supporting assembly (403) is connected with the attached vertical wall plate (1), and a motor (7) and a five-tooth gear (8) are mounted on the third supporting assembly (403); the connecting rod assembly (5) comprises a first connecting rod (501) and a second connecting rod (502), the second connecting rod (502) is movably connected with the second supporting assembly (402), the sensing transmission device (10) is mounted on the first connecting rod (501) and movably connected with the second connecting rod (502), and the swinging strip (11) is connected to the second connecting rod (502) in a pin joint mode; the resetting component (17) is arranged on the second connecting rod (502) and is used for resetting when the resetting component is contacted with the anti-falling block (6) and is popped up; the anti-falling strip (13) is rotatably connected with the second support component (402), and the anti-falling strip (13) inclines to the left side of the second support component (402) and is in contact with the swinging strip (11); the brake bar (14) is arranged at the middle upper part of the second support component (402), and the sliding shaft (16) penetrates through the second connecting rod (502) from left to right, is connected with the brake bar (14) and extends into a bar-shaped hole (15) on the brake bar; the five-tooth gear (8) is movably connected to the middle part of the third supporting component (403) through a pin shaft (9), and a belt (21) is arranged on the five-tooth gear and connected with the motor (7) at the same time.

2. The induction type anti-falling device for the lifting scaffold is characterized in that a telescopic hole (12) is formed in the swinging strip (11), and a limiting bulge (20) is embedded in the telescopic hole (12) and can reciprocate in the telescopic hole (12) to prolong the length of the swinging strip (11).

3. An inductive fall arrest device for lifting scaffolds according to claim 1, characterized in that the fall arrest bar (13) is inverted pear-shaped and connected to the second support assembly (402) by a pin.

4. The inductive fall arrest device for lifting scaffolds according to claim 1, characterized by comprising fall arrest bar limiting plates (18), the fall arrest bar limiting plates (18) being on the second support assembly (402) for limiting the range of rotation of the fall arrest bar.

5. An inductive fall arrest device according to claim 1, characterized in that the return member (17) is a return spring which moves the second link (502).

6. The inductive fall arrest device for lifting scaffolds according to claim 1, characterized in that it further comprises a brake bar stop (19), said brake bar stop (19) being located at the side of said second link (502) and acting as a limit stop when said sliding shaft (16) drives said brake bar (14) to move out of said second link (502).

7. The induction type anti-falling device for the lifting scaffold is characterized in that the induction transmission device (10) is a wireless signal receiving module, receives a rapid falling signal and starts a motor (7) to drive the five-tooth gear (8) to rotate clockwise.

8. An inductive fall arrest device for lifting scaffolds according to claim 1, characterized in that the five-toothed gear (8) can push the fall arrest bar (13) to rotate to the right of the second support assembly (402) via a swing bar (11), the fall arrest bar (13) can extend into the frame rail (2) and contact the fall arrest block (6).

9. An inductive fall arrest device for lifting scaffolds according to claim 1, characterized in that the brake bar (14) and the reset assembly (17) can drive the sliding shaft (16) to retract or extend, and the sliding shaft (16) can extend out of the second link (502).