Locking fastener for scaffold

Abstract

The utility model discloses a locking fastener for a scaffold, and belongs to the technical field of scaffold. The lock catch comprises two lock catch assemblies which are connected with each other. The lock catch assembly comprises a first clamp body, a second clamp body, a connecting bolt and a nut; a through arc-shaped notch is formed in the middle of one end of the first clamp body; one side of the arc-shaped notch is rotationally connected with one end of the connecting bolt; the other end of the connecting bolt is in threaded connection with the nut; the corresponding arc-shaped notch of the second clamp body is of an arc-shaped structure; one end of the second clamp body is rotationally connected with one end, far away from the connecting bolt, of the arc-shaped notch, and the other end is detachably connected with the connecting bolt through a nut; the tightening assembly comprises a tightening nut; the tightening nut is in threaded connection with the end, away from the first clamp body, of the connecting bolt. The device is convenient to operate, simple in overall structure and low in manufacturing difficulty.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of scaffold, concretely relates to a locking piece for scaffold. BACKGROUND

[0002] Scaffolds can be divided into outer scaffolds and inner scaffolds according to the erection position, wherein the outer scaffold refers to the scaffold erected on the periphery of a building, and is mainly used for outer wall masonry, outer facade decoration and reinforced concrete engineering.

[0003] The main structure of the scaffold includes horizontally and vertically arranged steel pipes and a locking piece for fixing the steel pipes, such as the invention with the patent announcement number CN108316638B, which discloses a locking piece for scaffold, the locking piece includes a locking part arranged on a flat pull pipe and a fixing part arranged on a stand column; the locking part includes a rotating shaft rotatably penetrating the end part of the flat pull pipe, one end of the rotating shaft is fixedly connected with a second bolt, the outer periphery of the second bolt is fixedly connected with a rubber clamping piece, the rubber clamping piece is arranged in an elliptical cam shape, two vertex positions of the elliptical cam are provided with first locking teeth, and the two groups of first locking teeth are arranged in a clockwise inclined manner; the fixing part includes a U-shaped groove formed in the stand column, the stand column is provided with a mounting block movably inserted into the U-shaped groove, a first ellipse is formed between the mounting block and the groove bottom of the U-shaped groove, and the width size of the first ellipse is smaller than the length size of the elliptical cam; the groove bottom of the U-shaped groove is provided with second locking teeth, one side of the mounting block opposite to the groove bottom of the U-shaped groove is provided with third locking teeth, and the second locking teeth and the third locking teeth are arranged in an anticlockwise inclined manner.

[0004] The above-mentioned invention sets the rubber clamping piece, is fast in disassembly, and the lock is firm. However, the above-mentioned invention is for square stand columns and flat pull pipes, needs to preset holes on the stand column and the flat pull pipe, however most of the scaffolds are circular steel pipes, which are not square, so that the practicality is low, the cost is high, and the whole structure of the above-mentioned invention is complex, and the manufacturing difficulty is great. UTILITY MODEL CONTENTS

[0005] The utility model provides a locking piece for scaffold to solve the technical problems mentioned in the background art.

[0006] To achieve the above object, the utility model adopts the following technical scheme:

[0007] A locking piece for a scaffold, which is installed on the scaffold, comprises two interconnecting locking assemblies, the locking assembly comprises a first clamping body, a second clamping body, a connecting bolt and a nut, an arc-shaped notch is formed in the middle of one end of the first clamping body, one side of the arc-shaped notch is rotationally connected with one end of the connecting bolt, the other end of the connecting bolt is threadedly connected with the nut, the second clamping body is in an arc-shaped structure corresponding to the arc-shaped notch, one end of the second clamping body is rotationally connected with the end of the arc-shaped notch away from the connecting bolt, and the other end of the second clamping body is detachably connected with the connecting bolt through the nut, and the tightening assembly comprises a tightening nut, and the tightening nut is threadedly connected with the end of the connecting bolt away from the first clamping body.

[0008] As a further improvement of the technical scheme, the tightening assembly further comprises a plate body, and the outer wall of the tightening nut is provided with the plate body.

[0009] As a further improvement of the technical scheme, the tightening assembly further comprises a steel wire rope, one end of the steel wire rope is detachably connected with the plate body, and the other end of the steel wire rope is detachably connected with the second clamping body.

[0010] As a further improvement of the technical scheme, the end of the second clamping body connected with the connecting bolt is provided with a notch corresponding to the connecting bolt, the connecting bolt extends into the notch when the connecting bolt is connected with the second clamping body, and one end of the steel wire rope extends into the notch when the steel wire rope is connected with the second clamping body.

[0011] As a further improvement of the technical scheme, the locking assembly further comprises a protrusion, the top surface of the end of the second clamping body connected with the connecting bolt is provided with the protrusion, the protrusion is away from the end of the second clamping body rotationally connected with the first clamping body, and the protrusion is away from the center line of the second clamping body.

[0012] As a further improvement of the technical scheme, the plate bodies are distributed in parallel along the circumferential direction of the axis of the tightening nut.

[0013] As a further improvement of the technical scheme, the utility model also discloses a locking piece for a scaffold, which further comprises a rotating column, the two locking assemblies are rotationally connected through the rotating column, and the two ends of the rotating column are rotationally connected with the middle part of the end of the first clamping body away from the second clamping body.

[0014] Compared with the prior art, the utility model has the beneficial effects as follows:

[0015] This application is easy to operate, has a simple overall structure, and is easy to manufacture. In use, the detachable end of the second clamp and the first clamp are separated. The arc-shaped groove of the first clamp is connected to the outer wall of the steel pipe. Then, the second clamp is rotated so that the detachable ends of the first clamp and the second clamp are brought together. Then, the nut is tightened first. The nut is threadedly connected to the connecting bolt. The nut can be tightened with an electric torque wrench so that the nut and the connecting bolt together tighten the second clamp, ensuring that the second clamp and the first clamp together clamp the steel pipe. Then, the tightening nut is tightened. The tightening nut is threadedly connected to the connecting bolt and moves toward the nut, pressing the nut and stabilizing its position to prevent it from rotating. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A structural schematic diagram of a locking and fastening device for scaffolding provided by this utility model. Figure 1 ;

[0018] Figure 2 Structural schematic diagram provided for this utility model Figure 2 ;

[0019] Figure 3 Structural schematic diagram provided for this utility model Figure 3 ;

[0020] Reference numerals: 1-locking assembly, 11-first clamping body, 12-second clamping body, 13-connecting bolt, 14-nut, 15-protrusion, 2-tightening assembly, 21-tightening nut, 22-plate, 23-wire rope, 3-rotating column. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model. Unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by those skilled in the art to which this utility model pertains.

[0022] The terms "first", "second", and similar terms used in the description and claims of the utility model creation application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, unless the context clearly indicates otherwise, the singular form of "one", "an" or "the" and similar terms does not indicate a quantity limitation, but indicates the existence of at least one. The terms "include" or "contain" and similar terms mean that the elements or objects appearing before "include" or "contain" cover the features, whole, steps, operations, elements and / or components listed after "include" or "contain", and do not exclude the existence or addition of one or more other features, whole, steps, operations, elements, components and / or their collections. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationship, which may change accordingly when the absolute position of the described object changes.

[0023] In the description of the utility model, it should be pointed out that, unless otherwise specified and limited, terms such as "installation", "connection", "connection", "setting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0024] Example one:

[0025] As Figures 1 to 3 shown, a locking piece for scaffold is installed on the scaffold, which comprises a locking assembly 1 and a tightening assembly 2; the number of the locking assembly 1 is two, and the two locking assemblies 1 are connected with each other; the locking assembly 1 comprises a first clamping body 11, a second clamping body 12, a connecting bolt 13 and a nut 14; an arc-shaped slot is formed in the middle of one end of the first clamping body 11; one side of the arc-shaped slot is rotatably connected with one end of the connecting bolt 13; the end of the connecting bolt 13 away from the arc-shaped slot is threadedly connected with the nut 14; the corresponding arc-shaped slot of the second clamping body 12 is an arc-shaped structure, which is matched with the arc-shaped slot to form a circular structure to clamp the circular pipe; one end of the second clamping body 12 is rotatably connected with the end of the arc-shaped slot away from the connecting bolt 13, and the other end of the second clamping body 12 is detachably connected with the connecting bolt 13 through the nut 14; the tightening assembly 2 comprises a tightening nut 21; the tightening nut 21 is threadedly connected with the end of the connecting bolt 13 away from the first clamping body 11; the nut 14 is located between the tightening nut 21 and the first clamping body 11.

[0026] Working mode:

[0027] In use, the second clamping body 12 and the first clamping body 11 are detachably connected at one end, the arc-shaped notch of the first clamping body 11 is connected with the outer wall of the steel pipe, then the second clamping body 12 is rotated, the first clamping body 11 and the second clamping body 12 are close to each other at the detachably connected end, then the nut 14 is screwed, the nut 14 is threadedly connected with the connecting bolt 13, the nut 14 is tightened by the electric torque wrench, so that the nut 14 and the connecting bolt 13 together tighten the second clamping body 12, the second clamping body 12 and the first clamping body 11 together clamp the steel pipe, then the tightening nut 21 is screwed, the tightening nut 21 is threadedly connected with the connecting bolt 13 and moves towards the nut 14 and presses the nut 14, so that the position of the nut 14 is stabilized and the nut 14 is prevented from rotating, the operation is convenient, the overall structure is simple, and the manufacturing difficulty is low.

[0028] As shown in Figure 2 and Figure 3 , preferably, the tightening assembly 2 further comprises a plate body 22; the outer wall of the tightening nut 21 is provided with the plate body 22, and the tightening nut 21 is rotated by the plate body 22 when the tightening nut 21 is screwed, so that the operation is convenient.

[0029] As shown in Figure 2 and Figure 3 , preferably, the tightening assembly 2 further comprises a steel wire rope 23; one end of the steel wire rope 23 is detachably connected with the plate body 22, and the other end of the steel wire rope 23 is detachably connected with the second clamping body 12; a through hole is formed in the plate body 22, and one end of the steel wire rope 23 is tied on the plate body 22 through the through hole and is detachably connected with the plate body 22; the plate body 22 and the tightening nut 21 are pulled by the steel wire rope 23, so that the tightening nut 21 is rotated in the tightening direction, the stability of the tightening nut 21 is enhanced, and the tightening nut 21 is prevented from loosening; preferably, the plate body 22 is distributed along the circumferential direction of the axis of the tightening nut 21 at equal intervals, so that the detachable connection between the steel wire rope 23 and the plate body 22 is facilitated.

[0030] As shown in Figure 2 and Figure 3 , preferably, the end of the second clamping body 12 connected with the connecting bolt 13 is provided with a notch corresponding to the connecting bolt 13; so that the connecting bolt 13 is inserted into the notch when the connecting bolt 13 is connected with the second clamping body 12; and so that one end of the steel wire rope 23 is inserted into the notch when the steel wire rope 23 is connected with the second clamping body 12.

[0031] As shown in Figure 2 and Figure 3As shown in the figure, preferably, the locking assembly 1 further comprises a protrusion 15; the top surface of the end of the second clamping body 12 connected with the connecting bolt 13 is provided with the protrusion 15; the protrusion 15 is away from the end of the second clamping body 12 rotatably connected with the first clamping body 11; the protrusion 15 is away from the center line of the second clamping body 12; the protrusion 15 forms a clamping groove, when the steel wire rope 23 is connected with the second clamping body 12, the steel wire rope 23 is located in the clamping groove, the protrusion 15 limits the position of the steel wire rope 23, so that it is stable, prevents it from being easily moved, and reduces the pulling force of the steel wire rope 23 on the plate body 22.

[0032] As shown in the figure, preferably, the locking assembly 1 further comprises a protrusion 15; the top surface of the end of the second clamping body 12 connected with the connecting bolt 13 is provided with the protrusion 15; the protrusion 15 is away from the end of the second clamping body 12 rotatably connected with the first clamping body 11; the protrusion 15 is away from the center line of the second clamping body 12; the protrusion 15 forms a clamping groove, when the steel wire rope 23 is connected with the second clamping body 12, the steel wire rope 23 is located in the clamping groove, the protrusion 15 limits the position of the steel wire rope 23, so that it is stable, prevents it from being easily moved, and reduces the pulling force of the steel wire rope 23 on the plate body 22. Figures 1 to 3 As shown in the figure, preferably, the locking assembly 1 further comprises a protrusion 15; the top surface of the end of the second clamping body 12 connected with the connecting bolt 13 is provided with the protrusion 15; the protrusion 15 is away from the end of the second clamping body 12 rotatably connected with the first clamping body 11; the protrusion 15 is away from the center line of the second clamping body 12; the protrusion 15 forms a clamping groove, when the steel wire rope 23 is connected with the second clamping body 12, the steel wire rope 23 is located in the clamping groove, the protrusion 15 limits the position of the steel wire rope 23, so that it is stable, prevents it from being easily moved, and reduces the pulling force of the steel wire rope 23 on the plate body 22.

[0033] The above is only a preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A locking member for a scaffold, mounted on a scaffold, characterised in that, The utility model relates to a lock assembly, which comprises: two lock assemblies (1) connected with each other; the lock assembly (1) comprises a first clamp body (11), a second clamp body (12), a connecting bolt (13) and a nut (14); an arc-shaped notch is formed in the middle of one end of the first clamp body (11); one side of the arc-shaped notch is rotationally connected with one end of the connecting bolt (13); the other end of the connecting bolt (13) is threadedly connected with the nut (14); the second clamp body (12) is arc-shaped corresponding to the arc-shaped notch; one end of the second clamp body (12) is rotationally connected with the end of the arc-shaped notch away from the connecting bolt (13), and the other end is detachably connected with the connecting bolt (13) through the nut (14); a tightening assembly (2) comprising a tightening nut (21); the tightening nut (21) is threadedly connected with the end of the connecting bolt (13) away from the first clamp body (11).

2. A latching member for a scaffold according to claim 1, wherein, The tightening assembly (2) further comprises a plate body (22); the plate body (22) is arranged on the outer wall of the tightening nut (21).

3. A latching member for a scaffold as claimed in claim 2, wherein, The tightening assembly (2) further comprises a steel wire rope (23); one end of the steel wire rope (23) is detachably connected with the plate body (22), and the other end is detachably connected with the second clamp body (12).

4. A latching member for a scaffold according to claim 3, wherein, A notch is formed in the end of the connecting bolt (13) connected with the second clamp body (12); when the connecting bolt (13) is connected with the second clamp body (12), the connecting bolt (13) extends into the notch; when the steel wire rope (23) is connected with the second clamp body (12), one end of the steel wire rope (23) extends into the notch.

5. A latching member for a scaffold according to claim 4, wherein, The lock assembly (1) further comprises a protrusion (15); the protrusion (15) is arranged on the top surface of the end of the second clamp body (12) connected with the connecting bolt (13); the protrusion (15) is away from the end of the second clamp body (12) rotationally connected with the first clamp body (11); the protrusion (15) is away from the center line of the second clamp body (12).

6. The coupler for a scaffold of claim 2, wherein, The plate bodies (22) are distributed in parallel and at intervals along the circumferential direction of the axis of the tightening nut (21).

7. A coupler for a scaffold as claimed in any one of claims 1 to 6, wherein, The utility model further comprises a rotating column (3); the two lock assemblies (1) are rotationally connected through the rotating column (3); the two ends of the rotating column (3) are respectively rotationally connected with the middle of the end of the first clamp body (11) away from the second clamp body (12).

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