KR102241793B1 - Floor door for gang form - Google Patents

Abstract

The present invention relates to a footrest door for gang form. According to the present invention, the footrest door for gang form, which is provided with a fixing frame fixed to a working platform and an opening and closing member mounted to pivot on one side of the fixing frame to open and close an entrance for workers partitioned by the fixing frame, comprises a shock mitigation means including: a chamber mounted on the opening and closing member, and having a pressure plate having a gel filled therein, and a flow hole through which the gel passes while being mounted and moved to reciprocate therein; and a cylinder having one end mounted on the fixing frame, and installed for a tip portion of a piston rod drawn out from the opposite side to pass through the chamber to be fixed to the pressure plate. Accordingly, the impact and roar generated when the opening and closing member is closed can be minimized.

Description

Floor door for gang form

The present invention relates to a scaffolding door for gangfoam, and more particularly, to a scaffolding door for gangfoam, which is equipped with a shock absorbing means including a gel in an opening and closing member for opening and closing an entrance to mitigate shock and roaring noises when closed.

In general, gang form is a large formwork made by integrating an exterior wall formwork and a scaffolding cage in a cross-sectional structure with the same upper and lower part on the plane like a high-rise apartment, and the scaffold applied here is a working scaffold for gangform. It is called this. These working scaffolds are scaffolds installed to secure space so that workers can safely work in places where there is a risk of falling or falling off during high place work, and to facilitate material transportation. The working scaffold is installed for each floor, and a ladder installed by connecting neighboring floors to move the working scaffold between floors and a scaffold door may be installed so that a part of the scaffold is opened.

A prior art constituting such a conventional gangfoam scaffolding door is disclosed in Registered Patent Registration No. 10-1876719 (name of the invention: a door cylinder unit and a safety door device having the same). Looking briefly with reference to FIGS. 1A and 1B, the frame 11 manufactured to partition the opening 10 while being fixed to the working scaffold, and the shaft rotation to open and close the opening 10 partitioned by the frame 11 The door cylinder unit 13 is installed by connecting the opening/closing member 12 and the frame 11 and the opening/closing member 12 to each other. Here, the door cylinder unit 13 is installed on both sides of the cylinder 14 in which the auxiliary closing spring 15 and the auxiliary opening spring 16 correspond to each other with the piston rod 17 interposed therebetween.

Therefore, when the opening and closing member 12 axially rotates to open the opening 10, the impact is alleviated by the operation of the piston rod 17 and the auxiliary opening spring 16, and the opening and closing member 12 closes the opening 10. When the axis rotates, the impact can be alleviated by the operation of the piston rod 17 and the auxiliary closing spring 15.

However, since the impact relief is entirely dependent on the elastic force of the spring, there is a structural problem in that the effect of impact relief is inevitably lowered if the elastic force decreases during repeated long-time use due to the nature of the spring.

Korean Patent Registration No. 10-1876719 (announced on July 13, 2018) Korean Patent Registration No. 10-1749022 (announced on 20 June 2017) Republic of Korea Patent Publication No. 10-2019-0022006 (published on March 6, 2019) Korean Patent Registration No. 10-1975147 (announced on May 7, 2019)

An object of the present invention conceived in order to solve the above problems is that the piston rod and the pressure rod of the cylinder installed by connecting the frame and the opening and closing member are installed to operate in connection, and the pressure rod is installed in the chamber in which the gel is accommodated. By being installed to be inserted or withdrawn, it is to provide a scaffolding door for gangfoam to minimize impact and roaring when the opening and closing member is closed.

In order to achieve the above-described object, the scaffolding door for gangfoam according to the present invention includes a fixed frame fixed to the working scaffold, and an opening and closing member mounted to rotate axially on one side of the fixed frame to open and close the entrances for workers partitioned by the fixed frame In the scaffolding door provided, a chamber having a pressure plate mounted on an opening and closing member and filled with a gel, and a pressure plate mounted to reciprocate the inside and processed with a flow hole through which the gel passes during movement; And, one end of the fixing frame It may include a shock absorbing means having; a cylinder installed so that the front end portion of the piston rod drawn out from the opposite side passes through the chamber and is fixed to the pressure plate.

Accordingly, when the opening/closing member rotates axially to close the entrance, the piston rod moves forward and moves the pressure plate, and the gel flows through the flow hole of the pressure plate so that the axial rotation speed of the opening/closing member decreases.

In addition, mounting members fixed across the rotating frame on both sides of the opening and closing member; A fixing member on which the chamber is mounted, directly fixed to the net of the opening and closing member, or fixed by connecting the mounting member and the rotating frame, and disposed toward the cylinder; A pressing rod having one end fixed to the pressing plate while reciprocating through the chamber; The other side of the pressure rod is inserted through one side and mounted to reciprocate, and the front end of the piston rod is inserted through the other side, and an intermediate member mounted to push the pressure rod while reciprocating; and mounted on the fixing frame, the piston of the cylinder A support member mounted so that the portion opposite to the rod rotates axially; At least one of them may be further provided.

Here, the chamber is accommodated with the gel, and when the pressure rod and the pressure plate are moved by the external pressure of the piston rod while the opening and closing member is closed, the compression force is applied to the pressure plate and the pressure rod when the external pressure of the piston rod is removed as the opening and closing member is opened. It may be further provided with a spring acting to return to the original position.

In addition, the chamber may further include a pressure rod penetrating the chamber or a sealing member mounted for sealing between the piston rod and the chamber.

On the other hand, a correction member having a long slot of the rate processed while being mounted on the fixing member so that a part of the opposite side of the chamber is axially rotated with respect to the cylinder, and a correction pin protruding from the side of the chamber to move by being inserted into the long slot may be further provided. have.

And it may be mounted on the fixing frame or the support member so that a part of the opposite side of the cylinder with respect to the chamber axially rotates.

As described above, according to the present invention, when the piston rod of the cylinder pushes the pressing plate when the opening and closing member is closed, the high viscosity gel passes through the flow hole of the pressing plate, and the closing speed of the opening and closing member is slowed by the pressure generated at this time, There is an effect that the impact and roaring noise generated when the opening and closing member is closed can be minimized.

The following drawings attached to the present specification illustrate preferred embodiments of the present invention, and serve to further understand the technical idea of the present invention together with the detailed description of the present invention, so the present invention is limited to the matters described in such drawings. Should not be interpreted.
1A and 1B are schematic views of a conventional gangfoam scaffolding door.
2 is a perspective view schematically showing a footrest door for a gang form according to a preferred embodiment of the present invention.
Figure 3 is a perspective view showing the shock absorbing means shown in Figure 2 is shown.
Figure 4 is a cross-sectional view showing the inside of the shock absorbing means of Figure 2;
5A to 5D are cross-sectional views illustrating the operation of the shock reducing means when the opening/closing member shown in FIG. 2 rotates axially.

Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art may easily implement the present invention. However, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention in describing the operating principle of the preferred embodiment of the present invention in detail, the detailed description thereof will be omitted.

<Configuration>

The scaffolding door for gangfoam according to a preferred embodiment of the present invention includes a fixing frame 100, an opening/closing member 200, and an impact reducing means 300, as shown in FIG. 2.

First, the fixing frame 100 is manufactured by dividing the entrance 110, which is a path of the worker. The fixing frame 100 may be manufactured in various shapes including a rectangular, circular, etc. in a plane. This fixing frame 100 may be installed on a working scaffold such as a gang form or a scaffold. Therefore, the worker can move to the lower or upper floor through the entrance 110.

In addition, the opening/closing member 200 is a member for opening and closing the entrance 110 of the fixing frame 100. The opening/closing member 200 is installed to rotate axially on one side of the fixing frame 100, and when the rotating frame 210 of a size accommodated in the fixing frame 100, and the rotating frame 210 are accommodated in the fixing frame 100, the operator When the net 220 mounted on the upper surface of the rotating frame 210 and the rotating frame 210 is accommodated in the fixed frame 100 so as to step on the rotating frame 210, the rotating frame 210 to prevent excessive axial rotation of the rotating frame 210 It may include a locking member 230 fixed to one side of the maximum shaft rotation side. When the locking member 230 is caught by the fixing frame 100, the closing operation of the opening and closing member 200 is completed, and a roaring sound may occur due to the impact of the locking member 230 and the fixing frame 100. As a result, the lifespan of the scaffolding door is lowered, and the work efficiency of the operator may be lowered.

In addition, the shock reducing means 300 is configured to minimize the impact and roaring sound between the locking member 230 and the fixing frame 100 by its own weight while the opening and closing member 200 is closed. 2 to 4, the shock absorbing means 300 is a support member 310, a mounting member 320, a fixing member 330, a chamber 340, a pressure rod 350, and an intermediate member 360. And a cylinder 370 may be provided.

The support member 310 has a plate or bar shape having a substantially rectangular or circular cross section, and may be mounted on the fixing frame 100 at the axial rotation portion of the opening/closing member 200.

The mounting member 320 has a plate or bar shape having a substantially rectangular or circular cross section, and may be mounted on the rotating frame 210 by being spaced apart from the support member 310 by a predetermined distance.

The fixing member 330 has a plate shape having a substantially rectangular cross section, and may be fixed by connecting the mounting member 320 and the rotating frame 210 while being disposed in a substantially cross-sectional shape on the mounting member 320. In this case, the fixing member 330 is preferably disposed in a direction from the fixing member 330 to the support member 310.

The chamber 340 includes a gel 341 for alleviating impact therein, a pressure plate 342 disposed under pressure, and a spring 344 that provides elastic force to return the pressure plate 342 moved in one direction. ), a pressing rod 350 having one end mounted on the pressing plate 342 through the chamber 340 and a sealing member 345 mounted for sealing between the chamber 340. The chamber 340 may be mounted such that one side opposite the cylinder 370 axially rotates within a predetermined angle. This is because the installation angle of the fixing member 330 on the side and the installation angle of the cylinder 370 are different from each other, the angle of the force provided by the cylinder 370 and the force applied to the pressure rod 350 of the chamber 340 This is to correct the angle to match. To this end, a correction member 346 fixed to the fixing member 330 while having a substantially curved long slot, and a correction pin 347 protruding from the chamber 340 while being inserted into the long slot and moving along the long slot are further provided. can do. Here, the correction member 346 and the correction pin 347 may be excluded by adjusting the axial rotation of the cylinder 370 and the moving angle and the installation angle of the pressure plate 342 or the pressure rod 350.

In this case, the pressure plate 342 may have a flow hole 343 through which the gel 341 can pass. For this reason, when the pressure plate 342 moves to one side, the moving speed of the pressure plate 342 may be reduced while the gel 341 passes through the flow hole 343. Accordingly, the closing speed of the opening/closing member 200 is slowed, thereby obtaining a shock mitigating effect.

And when the spring 344 is moved in one direction by the external force provided from the piston rod 372 and the pressure rod 350 moved forward, the piston rod 372 moves backward and the external force is removed. It may be installed to slowly push the pressure plate 342 to return it to its original position. Accordingly, the gel 341 that has passed through the flow hole 343 and moved to one side may pass through the flow hole 343 again and return to its original position on the other side.

On the other hand, the pressure rod 350 is fixed to the pressure plate 342 by passing through the chamber 340 at one side, and the other side may be inserted into the intermediate member 360 and mounted. The pressure rod 350 may have a bar shape having a circular cross section, and the outer diameter of one end of the intermediate member 360 may be processed to be wider than the outer diameter of other portions so as to prevent separation from the intermediate member 360.

In addition, the intermediate member 360 has a hollow shape having a predetermined length, and a part of the pressure rod 350 is inserted through an opening at one end, and a part of the piston rod 372 may be inserted through the opening at the other end. . In this case, the intermediate member 360 may have a length such that the pressure rod 350 and the piston rod 372 are inserted or withdrawn.

In addition, the cylinder 370 has a body 371 mounted such that one end thereof axially rotates to the fixing member 330 through the rotation shaft member 373, and one side of the body 371 is inserted or withdrawn from the body 371, so that the front end thereof is an intermediate member ( It may be provided with a piston rod 372 mounted to be inserted or withdrawn in 360). At this time, the front end of the piston rod 372 may be processed to be wider than the outer diameter of other portions to prevent separation from the intermediate member 360.

On the other hand, the piston rod 372 of the cylinder 370 may be directly mounted on the pressure plate 342 of the chamber 340, and at this time, the pressure rod 350 and the intermediate member 360 may be excluded. In addition, the chamber 340 and the cylinder 370 may be directly fastened to the opening/closing member 200 and the fixing frame 100, and at this time, the fixing member 330 and the support member 310 may be excluded.

<Operation>

Hereinafter, based on the above-described configuration, the operation of the gangfoam scaffolding door according to a preferred embodiment of the present invention will be described with reference to FIGS. 5A to 5D. Hereinafter,'one side' may indicate a left side in the drawing as a portion opposite the rotation axis of the opening and closing member 200, and'the other side' may indicate a right side in the drawing as a portion close to the rotation axis in the opening and closing member 200. In addition,'forward' is the moving direction of the piston rod 372, the pressure rod 350, and the pressure plate 342 when the opening/closing member 200 is closed, and'reverse' is the piston rod ( It may be a moving direction of the 372, the pressure rod 350 and the pressure plate 342.

First, FIG. 5A is a view showing the opening/closing member 200 in an open state. When the opening/closing member 200 is open, the piston rod 372 is in a state in which the piston rod 372 is retracted to the maximum, the pressure rod 350 and the pressure plate 342 are also in a state that is moved backward to the maximum, and the spring 344 is in a state in which the spring 344 is maximally relaxed. And, the gel 341 may be in a state accommodated by being concentrated on one side.

Next, Figure 5b is a view showing a state in which the opening and closing member 200 is almost closed. When the opening/closing member 200 is rotated to close the shaft, the closing operation may be performed up to a certain shaft rotation angle while the operation of the shock reducing means 300 is excluded. When the opening/closing member 200 is in an almost closed state, the withdrawn piston rod 372 may be moved to one side by pushing the pressure rod 350 and the pressure plate 342. At this time, the closing speed of the opening/closing member 200 is slowed by the pressure generated while the gel 341 passes through the flow hole 343 of the pressure plate 342 and is slowly closed, so that the impact generated when the opening/closing member 200 is closed. And it is possible to minimize the roaring sound. At this time, the closing speed of the opening/closing member 200 may be adjusted by the viscosity of the gel 341 and the passage speed and pressure of the flow hole 343. In addition, the spring 344 may be compressed by the movement of the pressing plate 342. The compressive force of the spring 344 is mainly for returning the pressure plate 342 to its original position when the opening/closing member 200 is opened later, but the closing speed of the opening/closing member 200 together with the flow pressure of the gel 341 is controlled through the design. It can also be used to slow it down.

Next, Figure 5c is a view showing a state in which the opening and closing member 200 is completely closed. When the opening/closing member 200 axially rotates and is completely closed, the piston rod 372 is pulled out to the maximum, and the pressing plate 342 together with the pressing rod 350 may be moved to one side to the maximum. In addition, the gel 341 in the chamber 340 may pass through the flow hole 343 of the pressure plate 342 and completely flow to the other side, and the spring 344 may be in a state in which the spring 344 is maximally compressed.

Finally, FIG. 5D is a view showing a state in which the opening/closing member 200 is opened again in a closed state. When the opening/closing member 200 axially rotates for opening, the piston rod 372 may move backward and be spaced apart from the pressure rod 350. In more detail, the speed of moving backward of the piston rod 372 according to the open shaft rotation speed of the opening/closing member 200 and the gel 341 flows to one side through the flow hole 343 of the pressure plate 342 Due to the difference in speed, the piston rod 372 and the pressure rod 350 may be spaced apart. Thereafter, when the elastic force of the compressed spring 344 continuously pushes the pressure plate 342 and moves backward, the gel 341 flows back to one side through the flow hole 343 of the pressure plate 342, and the original position shown in FIG. 5A Can be returned to

As described above, those skilled in the art to which the present invention pertains will understand that the present invention can be implemented in other specific forms without changing the technical spirit or essential features thereof. Therefore, the above-described embodiments are illustrative in all respects and should be understood as non-limiting. The scope of the present invention is indicated by the claims to be described later rather than by the detailed description, and all changes or modified forms derived from the meaning and scope of the claims and equivalent concepts should be construed as being included in the scope of the present invention. do.

100: fixed frame
110: Entrance
200: opening and closing member
210: rotating frame 220: net
230: jamming member
300: shock mitigation means
310: support member 320: mounting member
330: fixed material 340: chamber
341: Eze 342: pressure plate
343: flow hole 344: spring
345: sealing member 346: correction material
347: correction pin 350: pressure rod
360: intermediate member 370: cylinder
371: body 372: piston rod.
373: rotating shaft member.

Claims (5)

Having a fixed frame 100 fixed to the working scaffold and an opening/closing member 200 mounted to rotate axially on one side of the fixed frame 100 to open and close the worker's entrance 110 partitioned by the fixed frame 100 In the footrest door,
A pressure plate 342 mounted on the opening/closing member 200 and having a gel 341 filled therein, a flow hole 343 that is mounted to reciprocate the interior and passes through the gel 341 during movement, A chamber 340 disposed on one side of the pressing plate 342 and having a spring 344 installed to provide an elastic force;
A pressing rod 350 having one end fixed to the pressing plate 342 while reciprocating through the chamber 340;
One portion of the pressure rod 350 having an outer diameter larger than the other portion is inserted to reciprocate through one surface, and a tip portion with an outer diameter larger than the other portion of the piston rod 372 is inserted to reciprocate through the other surface. 372 and the pressure rod 350 is a hollow intermediate member 360 for guiding the reciprocating movement on the same movement path so that the separation and contact are repeated; and,
A cylinder 370 mounted to reciprocate the piston rod 372 and rotate the portion opposite to the piston rod 372 to the fixing frame 100 or the support member 310 fixed to the fixing frame 100 to axially rotate. Including a shock absorbing means (300) provided,
When the opening/closing member 200 axially rotates to open the entrance 110, the piston rod 372 first moves backward and is spaced apart from the pressure rod 350 to move to the other side of the intermediate member 360, and the spring 344 When the restoring force pushes the pressure plate 342, the gel 341 flows through the flow hole 343, and the pressure rod 350 moves backward and comes into contact with the piston rod 372 again to open completely,
When the opening/closing member 200 axially rotates to close the entrance 110, the piston rod 372 advances under the guidance of the intermediate member 360 and pushes the pressure rod 350 that is in contact with it in advance, the pressure rod ( The pressure plate 342 is moved together with the pressure plate 350, and the gel 341 passes through the flow hole 343 of the pressure plate 342 and the compression force of the spring 344 makes it more than when the entrance 110 is opened. A footrest door for gangfoam, characterized in that the shaft rotates late and is completely closed.
In claim 1,
Mounting members 320 fixed across the rotating frame 210 on both sides of the opening and closing member 200; And,
The chamber 340 is mounted and fixed directly to the net 220 of the opening/closing member 200 or fixed by connecting the mounting member 320 and the rotating frame 210, and disposed in the longitudinal direction of the pressure rod 350 The fixed member 330; further includes,
The chamber 340 is
A sealing member 345 mounted for sealing between the pressure rod 350 passing through the chamber 340 or the piston rod 372 and the chamber 340,
A correction member 346 in which a long slot of curvature is processed while being mounted on the fixing member 330 so that a part of the opposite side of the chamber 340 with respect to the cylinder 370 is axially rotated,
A footrest door for gang form, characterized in that it further comprises a correction pin (347) protruding from the side of the chamber (340) to move while being inserted into the long slot. delete delete delete

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