Building scaffold

Abstract

The utility model relates to and discloses a building scaffold which comprises a building wall body, a scaffold body climbing rod and an attachment support, the attachment support is fixedly installed on the building wall body, an anti-falling wheel is arranged between the scaffold body climbing rod and the attachment support, a round block is coaxially installed on one side of the anti-falling wheel, a plurality of sliding grooves are formed in the round block, brake rods are installed in the sliding grooves in a sliding mode, and the brake rods are fixedly installed on the attachment support. An inner gear ring is arranged on the outer ring of the round block and fixedly connected with the attachment support, and a plurality of oblique tooth grooves are formed in the inner ring of the inner gear ring. When a frame body climbing rod in the building construction frame suddenly falls and an accident occurs, the frame body climbing rod falls at a high speed, so that centrifugal force borne by two brake rods in a round block on one side of an anti-falling wheel is increased, and when the centrifugal force borne by the brake rods is larger than spring elasticity borne by the brake rods, the tail ends of the brake rods are thrown out along the inner walls of sliding grooves; the anti-falling wheel is clamped into the oblique tooth groove in the inner gear ring, so that rotation of the anti-falling wheel and downward movement of the scaffold body climbing rod are limited, and the purpose of preventing the attached type lifting scaffold from falling is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of attached lifting scaffolds, in particular to a construction scaffold. Background Technique

[0002] An attached lifting scaffold refers to an external scaffold that is erected to a certain height and attached to the engineering structure, and can climb or descend layer by layer with the engineering structure by relying on its own lifting equipment and devices, and has anti-overturning and anti-falling devices; the attached lifting scaffold mainly consists of an attached lifting scaffold frame structure, an attached support, an anti-overturning device, an anti-falling device, a lifting mechanism and a control device, etc.

[0003] Generally, the anti-falling device in an attached lifting scaffold is composed of a cylindrical support rod and two springs. The lower end of the support rod is rotatably installed on the attached support, and the two ends of the spring are respectively stretched and installed between the attached support and the support rod, and are used to tilt the top end of the support rod on the climbing rod of the scaffold, mainly to prevent the scaffold from falling when the attached lifting scaffold ascends; however, when the attached lifting scaffold falls and is removed from the building, the above anti-falling device between the attached support and the climbing rod of the scaffold will be removed, and it will fall by relying on the self-weight of the attached lifting scaffold, and there is no anti-falling device between the climbing rod of the scaffold and the attached support to prevent the scaffold from accidentally falling at high speed when the attached lifting scaffold falls. This article aims to propose a device to prevent the attached lifting scaffold from accidentally falling at high speed when it falls. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problem that there is no device in the prior art to prevent the attached lifting scaffold from accidentally falling at high speed when the climbing rod of the attached lifting scaffold and the attached support fall, and to propose a construction scaffold.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A construction scaffold, including a building wall, a climbing rod of the scaffold and an attached support, the attached support is fixedly installed on the building wall, the climbing rod of the scaffold is slidably installed on the attached support, a plurality of cross bars are fixedly installed on one side of the climbing rod of the scaffold, a anti-falling wheel is arranged between the climbing rod of the scaffold and the attached support, and the anti-falling wheel is meshed with the climbing rod of the scaffold;

[0007] One side of the anti-falling wheel is coaxially installed with a round block. A number of sliding grooves are arranged in the round block. A braking rod is slidably installed in the sliding groove. The braking rod is used to automatically retract into the sliding groove by the elastic tension of an elastic body. An internal gear ring is arranged on the outer ring of the round block. The internal gear ring is fixedly connected with the attachment support. A number of inclined tooth grooves are arranged on the inner ring of the internal gear ring. The end of the braking rod is mutually fitted with the inner wall of the inclined tooth groove.

[0008] Preferably, a number of tooth bars are fixedly installed on the periphery of the anti-falling wheel. A number of tooth bars on the anti-falling wheel are meshed and connected with a number of cross bars in the frame climbing rod.

[0009] Preferably, a rotating shaft is fixedly installed on the central shaft of the anti-falling wheel. The rotating shaft is fixedly connected with the round block. The rotating shaft is fixedly installed on the attachment support through a connecting frame. The lower end of the rotating shaft is rotatably connected with the connecting frame.

[0010] Preferably, the outer ring of the internal gear ring is fixedly connected with the connecting frame through a cylinder. The elastic body is specifically composed of a spring. The two ends of the spring are respectively fixedly connected with the inner wall of the sliding groove and the braking rod.

[0011] Preferably, two guiding pulleys are rotatably installed at the end of the attachment support. Guiding grooves are arranged on both side end faces of the frame climbing rod. The two guiding pulleys are respectively installed in the two guiding grooves in a rolling manner.

[0012] Preferably, a strip-shaped groove is arranged in the frame climbing rod. A number of cross bars are fixedly installed in the strip-shaped groove at equal intervals.

[0013] Compared with the prior art, the present utility model provides a construction scaffold, which has the following beneficial effects:

[0014] When the frame climbing rod in the construction scaffold suddenly drops and an accident occurs, the falling speed of the frame climbing rod will increase rapidly and fall at a high speed, thereby accelerating the rotation speed of the anti-falling wheel and increasing the centrifugal force received by the two braking rods in the round block. And when the centrifugal force received by the braking rod is greater than the spring force received by the braking rod, the end of the braking rod will be thrown out along the inner wall of the sliding groove and clamped into the inclined tooth groove in the internal gear ring, thereby restricting the rotation of the anti-falling wheel and the downward movement of the frame climbing rod, achieving the purpose of preventing the attached lifting scaffold from falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of a construction scaffold proposed by the present utility model;

[0016] Figure 2 is a schematic structural diagram of an anti-falling wheel in a construction scaffold proposed by the present utility model Figure 1 ;

[0017] Figure 3 Schematic diagram of the anti-falling wheel structure in a building construction scaffold proposed by the present utility model Figure 2 。

[0018] In the figure: 1, building wall; 2, climbing rod of the scaffold; 201, guiding groove; 202, strip groove; 203, cross bar; 3, attaching support; 301, guiding pulley; 4, anti-falling wheel; 401, toothed rod; 402, connecting frame; 403, rotating shaft; 404, cylinder; 405, round block; 406, sliding groove; 407, spring; 408, braking rod; 409, internal gear ring; 410, helical tooth groove. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0020] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0021] Referring to the attached Figures 1 - 3 , a building construction scaffold includes a building wall 1. One side of the building wall 1 is fixedly installed with an attaching support 3 through anchor bolts. Two symmetrically arranged guiding pulleys 301 are rotatably installed at the end of the attaching support 3. A climbing rod 2 of the scaffold is slidably installed between the two guiding pulleys 301. The climbing rod 2 of the scaffold is a component for guiding and lifting in an attached lifting scaffold. Symmetrically arranged guiding grooves 201 are provided on both side end faces of the climbing rod 2 of the scaffold. The two guiding pulleys 301 are respectively rotatably installed in the two guiding grooves 201. A strip groove 202 is provided inside the climbing rod 2 of the scaffold. A number of cross bars 203 are fixedly installed in the strip groove 202. The number of cross bars 203 is vertically and linearly installed at equal intervals on the inner wall of the strip groove 202.

[0022] In this embodiment, a fall prevention wheel 4 is installed below the attachment support 3. A plurality of toothed rods 401 are fixedly installed on the outer ring of the fall prevention wheel 4. The plurality of toothed rods 401 in the fall prevention wheel 4 are respectively meshed and connected with the plurality of cross bars 203 in the frame climbing rod 2. A rotating shaft 403 is coaxially installed on the central axis of the fall prevention wheel 4. The rotating shaft 403 is fixedly connected with the fall prevention wheel 4. Both ends of the rotating shaft 403 are rotatably installed with a connecting frame 402 through two bearings. The upper end of the connecting frame 402 is fixedly installed below the attachment support 3 through bolts.

[0023] In this embodiment, a round block 405 is coaxially and fixedly installed on the periphery of the rotating shaft 403. Two sliding grooves 406 are provided on the round block 405. A brake rod 408 is slidably installed in each of the two sliding grooves 406. The brake rod 408 is automatically retracted into the sliding groove 406 by the elastic tension of an elastic body. The elastic body is specifically composed of a spring 407. The spring 407 is arranged in the sliding groove 406. Both ends of the spring 407 are fixedly connected with the inner wall of the sliding groove 406 and the brake rod 408 respectively. This application mainly uses the elastic tension of the spring 407 to automatically pull the brake rod 408 to retract into the sliding groove 406. However, when the rotating shaft 403 rotates rapidly and the centrifugal force received by the brake rod 408 is greater than the elastic force of the spring 407 received by the brake rod 408, the end of the brake rod 408 will be thrown out along the inner wall of the sliding groove 406.

[0024] In this embodiment, a cylinder 404 is coaxially arranged on the outer ring of the round block 405. The cylinder 404 is fixedly connected with the connecting frame 402. An internal gear ring 409 is fixedly installed on the inner wall of the cylinder 404. A plurality of helical tooth grooves 410 are arranged on the inner ring of the internal gear ring 409. The inner wall of the helical tooth groove 410 is mutually fitted with the end of the brake rod 408. The inner wall of the internal gear ring 409 and the round block 405 are coaxially arranged, and a circular gap is reserved between the inner wall of the internal gear ring 409 and the round block 405, mainly for avoiding friction between the internal gear ring 409 and the round block 405.

[0025] This utility model refers to Figure 3 When the attached lifting scaffold naturally falls along a plurality of attachment supports 3 by its own weight, the plurality of cross bars 203 on the frame climbing rod 2 drive the fall prevention wheel 4 to rotate clockwise. When the frame climbing rod 2 descends at a normal speed, the elastic tension of the spring 407 is less than the centrifugal force received by the brake rod 408. The elastic force of the spring 407 automatically pulls the brake rod 408 to retract into the sliding groove 406, and the fall prevention wheel 4 will also rotate normally along with the frame climbing rod 2.

[0026] As is well known, when the climbing rod 2 of the attached lifting scaffold suddenly drops and an accident occurs, the dropping speed of the climbing rod 2 will increase, thereby accelerating the rotation speed of the anti-falling wheel 4, and increasing the centrifugal force received by the two braking rods 408 in the round block 405. When the centrifugal force received by the braking rod 408 is greater than the elastic force of the spring 407 received by the braking rod 408, the end of the braking rod 408 will be thrown out along the inner wall of the chute 406 and caught in the helical groove 410 of the internal gear ring 409, thereby restricting the rotation of the anti-falling wheel 4 and the downward movement of the climbing rod 2, achieving the purpose of preventing the attached lifting scaffold from dropping.

[0027] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A construction frame, comprising a building wall (1), a frame climbing rod (2) and an attachment support (3), wherein the attachment support (3) is fixedly mounted on the building wall (1), the frame climbing rod (2) is slidably mounted on the attachment support (3), and a plurality of cross bars (203) are fixedly mounted on one side of the frame climbing rod (2), characterized in that: An anti-fall wheel (4) is provided between the frame climbing pole (2) and the attachment support (3), and the anti-fall wheel (4) is meshingly connected with the frame climbing pole (2); A round block (405) is coaxially mounted on one side of the anti-fall wheel (4), and a plurality of slide grooves (406) are arranged in the round block (405). A brake rod (408) is slidably mounted in the slide groove (406). The brake rod (408) is used to automatically retract into the slide groove (406) through the elastic tension of the elastic body. The outer ring of the round block (405) is provided with an inner gear ring (409), and the inner gear ring (409) is fixedly connected to the attachment support (3). The inner ring of the inner gear ring (409) is provided with a plurality of oblique tooth grooves (410), and the end of the brake rod (408) and the inner wall of the oblique tooth groove (410) are mutually matched.

2. A construction scaffold according to claim 1, characterized in that: A plurality of gear rods (401) are fixedly mounted on the periphery of the anti-fall wheel (4), and the plurality of gear rods (401) on the anti-fall wheel (4) and the plurality of cross rods (203) in the frame climbing rod (2) are meshed and connected with each other.

3. A construction scaffold according to claim 1, characterized in that: A rotating shaft (403) is fixedly mounted on the central axis of the anti-fall wheel (4); the rotating shaft (403) and the round block (405) are fixedly connected; the rotating shaft (403) is fixedly mounted on the attachment support (3) via a connecting frame (402); and the rotating shaft (403) and the lower ends of the connecting frame (402) are rotatably connected.

4. A construction scaffold according to claim 3, characterized in that: The outer ring of the inner gear ring (409) is fixedly connected to the connecting frame (402) via a cylinder (404), and the elastic body is specifically composed of a spring (407), and the two ends of the spring (407) are respectively fixedly connected to the inner wall of the slide groove (406) and the brake rod (408).

5. A construction scaffold according to claim 1, characterized in that: Two guide pulleys (301) are rotatably mounted at the end of the attachment support (3), and guide grooves (201) are provided on both side end surfaces of the frame climbing rod (2), and the two guide pulleys (301) are respectively rollingly mounted in the two guide grooves (201).

6. A construction scaffold according to claim 1, characterized in that: A strip groove (202) is provided in the frame climbing rod (2), and a plurality of cross bars (203) are fixedly installed in the strip groove (202) at equal intervals.

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