KR200257268Y1 - Pinewheel opening and shutting mode safety net - Google Patents

Abstract

The retractable safety net using the pulley includes a safety net body held by the edge rope and the support rope, and one side of the support rope passes through the support rope and the other side of the pulley includes a pulley assembly through which the wire rope passes. When the safety net is required to be released, it is possible to release it quickly and to bind it quickly after the work is completed.

Description

Pinwheel opening and shutting mode safety net}

The present invention relates to a safety net installed on a steel structure to prevent safety accidents caused by falling objects or falling of workers at a construction site. In particular, when lifting a building material, a pulley is used to smoothly open and close the safety net using a pulley. It relates to a retractable safety net using.

In general, it is possible to prevent accidents caused by workers' inadvertent falls or safety accidents of lower-level workers due to falling construction materials in construction sites such as steel construction of buildings, factory trusses, and expansion of steel structures according to renovation work. The safety net is mandatory to prepare for safety accidents.

1 is a view showing an example of a conventional rope-type safety net, as shown, in the conventional rope-type safety net, a predetermined portion of the edge rope 13 that maintains the outline of the safety net body 10 is the binding rope 17. It is configured to bind to a pair of steel structures 19a, 19b, such as H beams, to support building materials or workers falling from the upper floor. Reference numeral 20 in the drawing denotes a support rope.

However, the above-mentioned safety net does not dismantle the safety net installed on each floor until the work of steel structure is completed, but when lifting the construction materials, the tied safety net must be released once and the binding of the construction materials is completed again. There was a problem.

In order to solve the above problems, a device for freely opening and closing a safety net has been developed and used in recent years. For example, Korean Patent No. 253169 proposes a 'safety net opening and closing device'. A pair of guide means installed opposite the support structure of each layer; A plurality of moving means mounted on the respective guide means so as to be movable in the front and rear directions; Both ends are respectively connected to the moving means mounted on the one guide means and the moving means mounted on the other guide means, each of which is equipped with a spring for absorbing the impact of the vertical load, A plurality of ropes woven into the safety net; And a plurality of connecting members for connecting the plurality of moving means coupled to each of the guide means to move the moving means back and forth, and when the steel structure of a building, a factory, etc. is expanded, the tower crane lifts the building material. The installation and dismantling of the safety net according to the lifting and lowering of the building materials were performed manually and semi-automatically.

However, the 'safety net switchgear' is used by mounting the switchgear to the steel structure, such as H beam, the installation and configuration of the switchgear was complicated and unnecessary labor for the installation and release of it was uneconomical.

The present invention is devised to solve the above problems of the prior art, the object of the present invention, by using the pulley in the safety net used in the construction site by performing the binding and release of the safety net safety net, such as lifting of building materials It is to provide a retractable safety net using a pulley that can be released quickly when required and can be fastened after completion of work.

In order to achieve the above object of the present invention, the retractable safety net using the pulley according to the present invention is a safety net main body maintained by the edge rope and the support rope, and the support rope penetrates one side and the wire rope passes through the other side opposite thereto. It comprises a pulley conjugate.

1 is a view showing an installation example of a conventional rope-type safety net.

Figure 2 is a view showing an installation example of the retractable safety net using the pulley according to the present invention.

Figure 3 is a view showing the pulley assembly mounted on the retractable safety net using the pulley according to the present invention.

<Explanation of symbols for the main parts of the drawings>

100 ----- Safety net body 130 ----- Border rope

140 ----- wire rope 150 ----- support rope

190a, 190b ----- steel structure 200 ----- pulley assembly

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

2 is a view showing an installation example of the retractable safety net using the pulley according to the present invention.

As shown, the retractable safety net using the pulley according to the present invention is by a plurality of support ropes 150 crossing the edge rope 130 and the edge rope 130 between a pair of steel structures (190a, 190b). Main body 100 to be maintained, and the pulley assembly through which one side of the edge rope 130 penetrates and the other side of the wire rope 140 disposed along the longitudinal direction of the steel structures 190a and 190b penetrates. 200 is made.

Safety net body 100 is made of a conventional material is provided in the form of a net according to a predetermined pattern to prevent the falling worker or building materials fall below it.

The edge rope 130 surrounds the outer edge of the safety net main body 100 to maintain the shape of the safety net main body 100 and is fastened to the pulley assembly 200 at predetermined intervals.

The support rope 150 is provided across the edge rope 130 to assist the safety net body 100 to support the falling object.

The wire rope 140 is disposed along the longitudinal direction of the steel structures 190a and 190b inside the steel structures 190a and 190b, through which the pulley assembly 200 linearly moves.

Figure 3 is a view showing a pulley assembly mounted to the retractable safety net using the pulley according to the present invention, (a) is a plan view, (b) shows a side view.

As shown, the pulley assembly 200 includes the pulley case 201, the first pulley 203 and the second pulley 205 rotatably disposed in the pulley case 201, and the pulley case 201. Rope binding pipe 210 is fastened to the) and the upper plate 207 and the lower plate 209 for supporting the rope binding tube 210 is made.

In the drawings, reference numeral 201a denotes a fastening means for fastening the pulley case 201 and the lower plate 209, and 203a and 205a indicate fastening means for fastening the first pulley 203 and the second pulley 205. 207a represents a fastening means for fastening the upper plate 207 and the lower plate 209. At this time, the fastening means is preferably a bolt coupling, but is not necessarily limited thereto.

Hereinafter, a use example of the retractable safety net using the pulley according to the present invention will be described with reference to FIGS. 2 and 3.

First, the user inserts and secures the edge rope 130 to the rope binding pipe 210 of the pulley assembly 200 at predetermined intervals, and then the first pulley 203 and the second pulley 205 of the pulley assembly 200. Insert the wire rope 140 in between. Subsequently, the pair of wire ropes 140 are fixed along the longitudinal direction of the steel structures 190a and 190b, and the extension wires of the edge ropes 130 are pulled in the direction of the arrow of FIG. 100) to remain open. Then, in the case of lifting the building material between the steel structure (190a, 190b), release the binding of the extension line of the bound edge rope 130 and fold the safety net body 100 in one direction so that the lifting of the building material smoothly. do. When the lifting of the building material is completed, the above operation is repeated to maintain the safety net body 100 in an unfolded state.

According to the present invention, in the safety net used in the construction site, by using the pulley to bind and release the safety net, when the release of the safety net is required, such as lifting of building materials, it can be quickly released and completed after the work is completed.

In addition, the retractable safety net using the pulley of the present invention is economical because the configuration is simple and unnecessary labor is not consumed for installation and release.

Claims (1)

Safety net main body 100 is maintained by a plurality of support rope 150 across the edge rope 130 and the edge rope 130 between a pair of steel structure (190a, 190b), One side includes the pulley assembly 200 through which the edge rope 130 penetrates and the other side opposite thereto passes through the wire rope 140 disposed along the longitudinal direction of the steel structures 190a and 190b. Opening and closing safety net using a pulley, characterized in that the opening and closing operation of the safety net is performed by the linear pulley assembly 200 through the wire rope 140.