Novel attached type anti-falling device for lifting scaffold

Abstract

The utility model provides a novel attachment type lifting scaffold anti-falling device which comprises a base and embedded bolts, the base is fixed on an outer wall through the embedded bolts and nuts, the inner side of the base is fixedly connected with a guide rail, the inner side of the guide rail is movably connected with a scaffold climbing frame, the scaffold climbing frame is fixedly connected with a plurality of transverse rods, and the transverse rods are fixedly connected with the base. And the scaffold climbing frame climbs up or down at a constant speed. Compared with the prior art, the anti-falling device has the advantages that through matched arrangement of the connecting arm, the gear, the teeth, the ratchet wheel, the first ratchet, the second ratchet, the third ratchet, the V-shaped balancing weight and the stop block, the anti-falling device is in a mechanical anti-falling mode, the anti-falling device is triggered due to the fact that the speed is increased when the scaffold is out of control and falls, the structure is simple, operation is reliable, the operation principle is simple, and safety is high; the dustproof cover is arranged in cooperation with the internal structure of the device, dustproof protection is conducted on the gear, the ratchet wheel and the auxiliary rotating shaft to the maximum extent, and normal operation is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of attached scaffold, in particular to a new type of attached lifting scaffold anti -fall device. BACKGROUND

[0002] Attached lifting scaffold, according to its power source can be divided into hydraulic type, electric type, manpower hand pull type and so on several main categories.It is the new scaffold system developed in recent years, mainly applied to high-rise building.It can climb up or down the protective frame body along the building periphery.

[0003] The most core safety guarantee of attached lifting scaffold is anti -fall device, it can play the braking effect of anti -fall device when the climbing frame operation occurs accidental falling.

[0004] The prior art CN211173021U discloses attached lifting scaffold anti -fall device belongs to the technical field of building, including several wall fixed blocks and two vertical poles, the back of two vertical poles equidistant fixed mounting several mounting pieces, the bottom of several mounting pieces is fixedly connected with the top of wall fixed block, the front of two vertical poles is provided with tooth slot, one side of two vertical poles is fixedly installed with slide rail, the inside of two slide rails is slidably connected with first sliding block, the top of two first sliding blocks is fixedly installed with pull ring.

[0005] This prior art is through the PLC controller control self-locking stepper motor and electric hydraulic cylinder work to brake the scaffold, when falling, the arc block is fully contacted with the rotating shaft by the electric hydraulic cylinder, the friction between arc block and rotating shaft, the rotating shaft is stopped rotating, the scaffold is prevented from falling, the braking form is electric braking, needs multiple electrical structures cooperation, finally realizes the purpose of braking the scaffold with friction, and the braking structure is relatively complex, the cost is higher, and the anti -fall structure can cause anti -fall failure due to the failure of single structure, and the safety still needs to be strengthened. UTILITY MODEL CONTENTS

[0006] The utility model aims at solving at least one of the technical defects.

[0007] Therefore, one purpose of the utility model is to provide a new type of attached lifting scaffold anti -fall device to solve the problems mentioned in the background art and overcome the deficiencies in the prior art.

[0008] In order to achieve the above object, the utility model one aspect of embodiment provides a novel attached type lifting scaffold anti falling device, including base, embedded bolt, the base is fixed on the outer wall through embedded bolt and nut, its characterized in that, the inner side of base is fixedly connected with guide rail, the inner side of guide rail is movably connected with scaffold climbing frame, a plurality of cross bars are fixedly connected on the scaffold climbing frame, when the scaffold climbing frame climbs or descends on, it is uniform velocity;

[0009] The lower side of guide rail is fixedly connected with connecting arm, the side of connecting arm is movably connected with gear through pivot;

[0010] The gear has a plurality of teeth, when the scaffold climbing frame climbs or descends, the cross bar is movably connected with the tooth;

[0011] The side of connecting arm is movably connected with ratchet wheel through pivot, V-shaped counterweight is fixedly connected on ratchet wheel;

[0012] The V-shaped counterweight always has pointed part downward, the outer surface of ratchet wheel is sequentially fixedly connected with first ratchet, second ratchet and third ratchet;

[0013] The inner side of base is fixedly connected with stop block, the stop block is located above the side of ratchet wheel, when the scaffold climbing frame climbs or descends at uniform velocity, the tooth is movably connected with second ratchet;

[0014] The inner side of base is fixedly connected with dust cover, the dust cover is mouth-shaped, the dust cover is located on both sides, below and above of gear and ratchet wheel.

[0015] It is preferred from any of the above solutions that the base is welded or connected with the guide rail through bolts, and the guide rail is arranged transversely.

[0016] The above technical solution is adopted: the device is an anti-falling device for attached lifting scaffold, which is a mechanical anti-falling device, simple in structure and reliable in operation.

[0017] It is preferred from any of the above solutions that the connecting arm is welded with the guide rail, and the gear is located below the side of the ratchet wheel.

[0018] The above technical solution is adopted: as known, the speed of the attached lifting scaffold is uniform when it normally climbs and descends, and has a fixed speed.

[0019] It is preferred from any of the above solutions that when the gear rotates at uniform speed, the tooth is only movably connected with the second ratchet of the ratchet wheel, and the ratchet wheel is adjusted by the V-shaped counterweight after rotating.

[0020] Adopt the above technical scheme: The principle of the device is that the speed of the attached lifting scaffold is uniform when it is normally controlled to descend, the scaffold climbing frame and the cross bar are part of the attached lifting scaffold and also descend at a uniform speed, the cross bar is movably connected with the gear teeth, the gear rotates counterclockwise at a uniform speed, the gear teeth are movably connected with the second ratchet at this time, the ratchet rotates clockwise, and the ratchet is reset by the V-shaped counterweight before the next gear tooth contacts the second ratchet, when the scaffold descends at a high speed out of control, the gear rotates at a faster speed, the gear teeth are movably connected with the second ratchet at this time, and the ratchet has not been reset before the next gear tooth contacts the third ratchet, so that the first ratchet rotates until the first ratchet contacts the stop block, the gear is clamped, the gear is clamped with the cross bar and the scaffold climbing frame, the descending of the cross bar and the scaffold climbing frame is prevented, the scaffold is clamped, and the anti-falling of the scaffold is realized.

[0021] By cooperation of the connecting arm, the gear, the gear teeth, the ratchet, the first ratchet, the second ratchet, the third ratchet, the V-shaped counterweight and the stop block, the anti-falling device is mechanical, the speed of the scaffold descending out of control is increased to trigger the anti-falling device, the structure is simple, the operation is reliable, the operation principle is simple, and the safety is high.

[0022] According to any one of the above schemes, preferably, when the gear rotates at a high speed counterclockwise, that is, when the scaffold climbing frame descends at a high speed, the ratchet cannot be reset in time and the first ratchet contacts the stop block, the gear is clamped, and the gear is clamped with the cross bar and the scaffold climbing frame.

[0023] According to any one of the above schemes, preferably, the stop block is welded with the base, the dust cover is welded with the base, and the dust cover is welded and assembled.

[0024] According to the above technical scheme: The dust cover is arranged in cooperation with the internal structure of the device, the gear, the ratchet and the auxiliary rotating shaft are protected from dust to the maximum extent, and normal operation is ensured.

[0025] Compared with the prior art, the novel attached lifting scaffold anti-falling device has the following advantages and beneficial effects:

[0026] 1. The novel attached lifting scaffold anti-falling device is mechanical, the speed of the scaffold descending out of control is increased to trigger the anti-falling device, the structure is simple, the operation is reliable, the operation principle is simple, and the safety is high.

[0027] 2. The dust cover is arranged in cooperation with the internal structure of the device, the gear, the ratchet and the auxiliary rotating shaft are protected from dust to the maximum extent, and normal operation is ensured.

[0028] The additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter in the description of the application, which will be given in the following description with reference to the accompanying drawings, in which: BRIEF DESCRIPTION OF DRAWINGS

[0029] The advantages of the present application will become apparent and easy to understand in the following description of the embodiments with reference to the accompanying drawings, in which:

[0030] Figure 1 is a structural schematic view of the first perspective of the present application;

[0031] Figure 2 is a structural schematic view of the second perspective of the present application;

[0032] Figure 3 is a structural schematic view of the present application after installing the dust cover;

[0033] Figure 4 is a partial sectional view of the gear of the present application.

[0034] In the figure: 1 - base, 2 - embedded bolt, 3 - guide rail, 4 - scaffold climbing frame, 401 - cross bar, 5 - connecting arm, 6 - gear, 7 - ratchet, 701 - first ratchet, 702 - second ratchet, 703 - third ratchet, 8 - V-shaped counterweight, 9 - stop block, 10 - dust cover. DETAILED DESCRIPTION

[0035] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0036] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or integrally connected;Can be mechanically connected, or electrically connected;Can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] As Figures 1-4As shown, the new type of attached lifting scaffold anti-falling device comprises a base 1, a pre-buried bolt 2, the base 1 is fixed on the outer wall through the pre-buried bolt 2 and the nut, the inner side of the base 1 is fixedly connected with a guide rail 3, the inner side of the guide rail 3 is movably connected with a scaffold climbing frame 4, a plurality of cross bars 401 are fixedly connected on the scaffold climbing frame 4, and the scaffold climbing frame 4 climbs or descends at a constant speed;

[0038] A connecting arm 5 is fixedly connected below the guide rail 3, and a gear 6 is movably connected on one side of the connecting arm 5 through a rotating shaft;

[0039] The gear 6 has a plurality of teeth 601, and the cross bars 401 are movably connected with the teeth 601 when the scaffold climbing frame 4 climbs or descends;

[0040] A ratchet wheel 7 is movably connected on one side of the connecting arm 5 through a rotating shaft, and a V-shaped counterweight 8 is fixedly connected on the ratchet wheel 7;

[0041] The V-shaped counterweight 8 always has a pointed part downward, and the outer surface of the ratchet wheel 7 is sequentially fixedly connected with a first ratchet tooth 701, a second ratchet tooth 702 and a third ratchet tooth 703;

[0042] A stop block 9 is fixedly connected on the inner side of the base 1, the stop block 9 is located above the side of the ratchet wheel 7, and the teeth 601 are movably connected with the second ratchet tooth 702 when the scaffold climbing frame 4 climbs or descends at a constant speed;

[0043] A dust cover 10 is fixedly connected on the inner side of the base 1, the dust cover 10 is in the shape of a mouth, and the dust cover 10 is located on both sides, below and above the gear 6 and the ratchet wheel 7.

[0044] Embodiment 1: The base 1 is welded or connected with the guide rail 3 through a bolt, and the guide rail 3 is arranged transversely. The device is an anti-falling device of an attached lifting scaffold, which is a mechanical anti-falling device, simple in structure and reliable in operation.

[0045] Embodiment 2: The connecting arm 5 is welded with the guide rail 3, and the gear 6 is located below the side of the ratchet wheel 7. As known, the speed of the attached lifting scaffold is constant when it normally climbs and descends.

[0046] When the gear 6 rotates at a constant speed, the tooth 601 is only in active connection with the second ratchet tooth 702 of the ratchet wheel 7, and the ratchet wheel 7 is righted through the V-shaped counterweight 8 after rotation. The speed of the attached lifting scaffold is constant when the attached lifting scaffold is normally controlled to descend, and the scaffold climbing frame 4 and the cross bar 401 are part of the attached lifting scaffold and also descend at a constant speed. At this time, the cross bar 401 is in active connection with the tooth 601 of the gear 6, and the gear 6 rotates counterclockwise at a constant speed. At this time, the tooth 601 is only in active connection with the second ratchet tooth 702, and the ratchet wheel 7 rotates clockwise. Before the next tooth 601 contacts the second ratchet tooth 702, the ratchet wheel 7 is reset due to the V-shaped counterweight 8. When the scaffold descends at a high speed out of control, the rotating speed of the gear 6 becomes fast. After the tooth 601 is in active connection with the second ratchet tooth 702, the ratchet wheel 7 has not been reset, and the next tooth 601 contacts the third ratchet tooth 703, so that the first ratchet tooth 701 rotates until the first ratchet tooth 701 abuts against the stop block 9, the gear 6 is clamped, the gear 6 clamps the cross bar 401 and the scaffold climbing frame 4 through the tooth 601, the descending of the cross bar 401 and the scaffold climbing frame 4 is prevented, and the scaffold is clamped to death, so that the scaffold is prevented from falling.

[0047] When the gear 6 rotates at a constant speed, the tooth 601 is only in active connection with the second ratchet tooth 702 of the ratchet wheel 7, and the ratchet wheel 7 is righted through the V-shaped counterweight 8 after rotation. The speed of the attached lifting scaffold is constant when the attached lifting scaffold is normally controlled to descend, and the scaffold climbing frame 4 and the cross bar 401 are part of the attached lifting scaffold and also descend at a constant speed. At this time, the cross bar 401 is in active connection with the tooth 601 of the gear 6, and the gear 6 rotates counterclockwise at a constant speed. At this time, the tooth 601 is only in active connection with the second ratchet tooth 702, and the ratchet wheel 7 rotates clockwise. Before the next tooth 601 contacts the second ratchet tooth 702, the ratchet wheel 7 is reset due to the V-shaped counterweight 8. When the scaffold descends at a high speed out of control, the rotating speed of the gear 6 becomes fast. After the tooth 601 is in active connection with the second ratchet tooth 702, the ratchet wheel 7 has not been reset, and the next tooth 601 contacts the third ratchet tooth 703, so that the first ratchet tooth 701 rotates until the first ratchet tooth 701 abuts against the stop block 9, the gear 6 is clamped, the gear 6 clamps the cross bar 401 and the scaffold climbing frame 4 through the tooth 601, the descending of the cross bar 401 and the scaffold climbing frame 4 is prevented, and the scaffold is clamped to death, so that the scaffold is prevented from falling.

[0048] The working principle of the utility model is as follows:

[0049] S1, the speed of the attached lifting scaffold is constant when the attached lifting scaffold is normally controlled to descend, and the scaffold climbing frame 4 and the cross bar 401 are part of the attached lifting scaffold and also descend at a constant speed.

[0050] S1, the speed of the attached lifting scaffold is constant when the attached lifting scaffold is normally controlled to descend, and the scaffold climbing frame 4 and the cross bar 401 are part of the attached lifting scaffold and also descend at a constant speed.

[0051] Compared with the prior art, the utility model has the following beneficial effects:

[0052] 1. The new type of attached lifting scaffold anti-falling device, through the cooperation of the connecting arm 5, the gear 6, the gear 601, the ratchet 7, the first ratchet 701, the second ratchet 702, the third ratchet 703, the V-shaped counterweight 8 and the stop block 9, the anti-falling device is mechanical type, which is triggered when the scaffold loses control and falls at a faster speed, has simple structure, reliable operation, simple operation principle and high safety.

[0053] 2. The new type of attached lifting scaffold anti-falling device, the dust cover 10 is arranged in cooperation with the internal structure of the device, which maximally protects the gear 6, the ratchet 7 and their attached shafts from dust, ensuring their normal operation.

Claims

1. A new type of falling prevention device for attached lifting scaffold, comprising a base (1) and a pre-buried bolt (2), wherein the base (1) is fixed on the outer wall through the pre-buried bolt (2) and a nut. The inner side of the base (1) is fixedly connected with a guide rail (3), the inner side of the guide rail (3) is movably connected with a scaffold climbing frame (4), a plurality of cross bars (401) are fixedly connected on the scaffold climbing frame (4), and the scaffold climbing frame (4) climbs or descends at a constant speed; The lower side of the guide rail (3) is fixedly connected with a connecting arm (5), one side of the connecting arm (5) is movably connected with a gear (6) through a rotating shaft; The gear (6) has a plurality of teeth (601), and the cross bars (401) are movably connected with the teeth (601) when the scaffold climbing frame (4) climbs or descends; One side of the connecting arm (5) is movably connected with a ratchet wheel (7) through a rotating shaft, and a V-shaped counterweight (8) is fixedly connected on the ratchet wheel (7); The V-shaped counterweight (8) always has a pointed part downward, and the outer surface of the ratchet wheel (7) is sequentially fixedly connected with a first ratchet tooth (701), a second ratchet tooth (702) and a third ratchet tooth (703); The inner side of the base (1) is fixedly connected with a stop block (9), the stop block (9) is located above the side of the ratchet wheel (7), and the teeth (601) are movably connected with the second ratchet tooth (702) when the scaffold climbing frame (4) climbs or descends at a constant speed; The inner side of the base (1) is fixedly connected with a dust cover (10), the dust cover (10) is in a mouth shape, and the dust cover (10) is located on both sides, below and above the gear (6) and the ratchet wheel (7).

2. The new type of falling protection device for attached lifting scaffold according to claim 1, characterized in that: The base (1) is welded or connected with the guide rail (3) through bolts, and the guide rail (3) is arranged transversely.

3. The new type of falling protection device for attached lifting scaffold according to claim 2, characterized in that: The connecting arm (5) is welded with the guide rail (3), and the gear (6) is located below the side of the ratchet wheel (7).

4. The new type of falling-prevention device for attached lifting scaffold according to claim 3, characterized in that: The stop block (9) is welded with the base (1), the dust cover (10) is welded with the base (1), and the dust cover (10) is welded and assembled by itself.

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