KR200485098Y1

KR200485098Y1 - Door safety bar

Info

Publication number: KR200485098Y1
Application number: KR2020150007464U
Authority: KR
Inventors: 소은석
Original assignee: 대구도시철도공사
Priority date: 2015-11-17
Filing date: 2015-11-17
Publication date: 2017-11-27
Also published as: KR20170001829U

Abstract

The present invention relates to a door security bar comprising a main bar 110 having a length corresponding to the width of a door D and a pair of hooks 121 and 131 connected to one side of the door D and the other side handles H, H ') and a fixed hook (130) adapted to be mounted and dismounted on a door (110); Adjusts the length between the variable hook 120 and the fixed hook 130 as the support rod 123 provided on the variable hook 120 is elastically pulled in and out; The support rod 123 includes a main hook 110 and a variable hook 120 that maintain their shape in a horizontal state at any position during pulling-out and pulling-out. Thus, the support rod 123 is very easy to install and detach, And a safety bar which can secure the safety bar.

Description

Door Safety Bar {DOOR SAFETY BAR}

The present invention relates to a door security bar, and more particularly, to a door security bar for securing the safety of a worker or a passenger by configuring a safety bar that can be easily installed on the door of the door when the door is closed or when the door is broken. .

In general, urban railways are a popular public transportation system, and are operated 24 hours a day, seven days a week for convenient and safe transportation of passengers and smooth traffic flow.

In particular, railway trains used by a large number of passengers are regularly maintained and inspected for safe operation, and urgent maintenance work is being carried out in case of unexpected failures during operation.

On the other hand, when maintenance work of a train is carried out, the doors of the train are usually removed or opened in order to facilitate the worker's movements between the rooms. In such a case, To the risk of the accident occurring.

Particularly, since the track of the vehicle base where maintenance work of the electric railway car is performed, that is, the rail is designed to be positioned at a certain height on the ground to smoothly perform maintenance of the lower structure of the electric railway car, So that it can lead to a serious accident at the time of an external crash such as the above example.

In addition, when an emergency accident or maintenance work is performed on a main line where a train is operated, an accident that a passenger falls to the main line due to malfunction of a door may occur. In such a case, the engineer may previously install a closing membrane at the door of the train, but the safety is not guaranteed because it is merely a level of the curtain, and it is necessary to tie it around with a string or the like, It can not be done.

Meanwhile, a bar-shaped device for preventing a fall accident that may occur on the exit of a high-altitude workplace, such as a train, has been developed and known, and a configuration of the fall prevention window bar of the registered utility model 20-0459622 As follows.

A fall safety window bar provided on a window frame to prevent falls is formed in a tubular shape having a plurality of control holes arranged at regular intervals on a surface thereof. The slide bar is formed with a slide insertion hole for inserting one side of the auxiliary frame at one side thereof, A main fixing frame having a fixing bracket for fixing the window frame to the window frame and a slide inserting hole of the main fixing frame to allow one side to be moved left and right and a plurality of adjustments An auxiliary frame having a fixing bracket formed on the other end thereof so as to be fixed to the window frame with a fixing bracket and a fitting member fixed to the auxiliary frame to fix the length of the auxiliary frame inserted into the main fixing frame.

Registered Utility Model No. 20 - 0459622 - 0000 Registered Utility Model No. 20 - 0389354 - 0000

The fall prevention window safety bar to which the above-described conventional technique is applied comprises a subframe which is slidably inserted into a main fixing frame, and a length is adjusted and fixed by inserting the adjusting holes formed in each frame so as to fix the length thereof I am taking.

However, the window safety bar to which the conventional technique is applied is structured such that the auxiliary frame to be inserted into the main fixing frame is drawn in and pulled out in a sliding manner, and the length of the adjusting bar is adjusted by matching the adjusting holes for inserting the pieces formed in both frames, The length of the safety bar is determined according to the width of the window so that it is precisely aligned with the width of the window to fix the safety bar.

Further, in order to solve the above-described problem, it is necessary to form a more precise spacing of the adjusting holes. However, in the above-described structure, another problem occurs that the strength and durability of the safety bar are lowered.

As a result, the safety bar of the prior art has a drawback in that the operation efficiency is lowered due to a delay in the time required for inserting and fixing the pieces by matching the control holes during the installation work of the safety bars, Which may lead to problems such as deterioration of workability, and the like.

Accordingly, the present invention has been made to solve the above-mentioned problems,

A main bar 110 having a length corresponding to the width of the door D and hooks 121 and 131 attached to one side of the door D and the other side handles H and H ' 1. An access door safety bar comprising a variable hook (120) and a fixed hook (130);
The fixing hook 130 fixes the base 132 to one side of the main bar 110 so that the center of the ring of the head 131 is located on an extension of the central axis of the main bar 110;
A hollow portion 111 having a rectangular cross section is formed at a predetermined depth on the other side of the main bar 110 and an opening 113 is provided on the outside of the hollow portion 111.
The variable hook 120 is formed such that the center of the loop of the head 121 is located on an extension of the central axis of the main bar 110 and the base 122 is provided with a rectangular shape in cross section corresponding to the hollow portion 111 And a support rod 123 which coaxially forms a predetermined length from the main bar 110;
The support rod 123 is engaged with the tip end 142 of the elastic member 140 that fixes the distal end 141 to the inner bottom portion 112 of the hollow portion 111 and elastically retracts into the hollow portion 111 And adjusts the distance between the variable hook 120 and the fixed hook 130 as it is drawn out;
The four side surfaces of the support rod 123 are supported by the inner four wall surfaces of the hollow portion 111 so that the main bar 110, the variable hook 120 and the fixed hook 130 are horizontally So that it is possible to provide a safety bar that is very simple to install and detach and at the same time can secure safety and durability.

delete

This design has the effect of minimizing the problem of exposing workers and passengers to the risk of falling accident due to unprotected operation by blocking some of openings of doors and other high work places of train.

Particularly, compared with the conventional closing bar which has conventionally been used in the operation of a train, the installation structure is very simple compared to the conventional bar bar of the related art, and the bar can be quickly installed and removed even in an emergency situation.

In addition, it is constituted to be able to secure high strength and durability in terms of material and structure, so that even when the weight of the worker is put on the safety bar in a dangerous situation, for example, it is possible to maintain a strong supporting force.

FIG. 1 is a perspective view of an embodiment of the door security bar of the present invention; FIG.
2 is an exploded perspective view according to an embodiment of the door security bar of the present invention;
Fig. 3 is a front view (a) and a plan view (b) showing a pulled-in state of the variable hook according to the embodiment of the door security bar of the present invention and a cross-sectional view (c) taken along the line AA.
Fig. 4 is a front view (a) and a plan view (b) showing a pulled-out state of the variable hook according to the embodiment of the door security bar of the present invention, and a sectional view (c) taken along the line BB;
FIG. 5 is a view showing an example of a use state according to an embodiment of a door security bar of the present invention. FIG.
Fig. 6 is an exemplary usage image according to an embodiment of the door security bar of the present invention; Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the construction and operation of a door security bar according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view of an embodiment of a door security bar of the present invention, FIG. 2 is an exploded perspective view of an embodiment of a door security bar of the present invention, and FIG. 3 is a perspective view of a variable hook Sectional view taken along the line AA in FIG. 4, a front view (a) and a plan view (b) showing a pulled-in state of the variable hook 120 according to the embodiment of the door security bar of the present invention, Sectional view taken along the line BB, Fig. 5 is an example of the use state according to the embodiment of the door security bar of the present invention, Fig. 6 is an explanatory view of the state of use of the present invention As an example of use examples according to the embodiment of the door security bar.

The door safety bar 100 to which the present invention is applied can be easily and safely designed to secure the safety of the operator or the passenger from danger such as a falling accident that may occur during maintenance work or the like at the entrance door (D) It is to be understood that the invention relates to a door security bar 100 configured to be installed and removed, and to ensure safety and durability.

To this end, the present invention is characterized in that a main bar 110 having a length corresponding to the width of the door D and a pair of hooks 121 and 131 are connected to one side and the other side handles H and H ' And a fixed hook 130 which is provided to be able to hang and detach from the main body 100. More specifically,

As shown in FIGS. 1 and 2, the main bar 110 partially blocks the door D or the opening. The length of the main bar 110 can be variously applied according to the size of the door D, and it is preferable that the main bar 110 is formed in a length corresponding to the width, Can be changed as much as necessary.

The base 132 is fixed to one side of the main bar 110 so that the center of the ring of the head 131 is positioned on an extension of the central axis of the main bar 110. The concrete structure of the fixing hook 130 will be described below.
A hollow portion 111 having a rectangular cross-sectional shape is formed at a predetermined depth on the other side of the main bar 110 and an opening 113 is provided on the outside of the main bar 110. The variable hook 120 is inserted / . The cross section of the hollow portion 111 may be formed in a polygonal shape so as to prevent the problem that the rotation direction of the head 121 of the variable hook 120 is rotated or the support force between the main bar 110 and the variable hook 120 is weakened A rectangular cross-sectional shape is formed at a predetermined depth and an opening 113 is provided on the outer side. In this regard, the configuration of the support rod 123 will be described in detail.

In the center portion of the main bar 110, an area where a warning sign 160 can be attached to a worker or a passenger is displayed to increase the visibility of the installed safety bar 100, As shown in Fig.

The elastic member 140 inserted into the hollow portion 111 is fixed to the inner bottom portion 112 of the hollow portion 111 by the end 141 of the elastic member 140 and the variable hook 120 coupled to the end 142 of the hollow portion 111, To be elastically pulled and pulled out by a tensile force. The elastic member 140 may be a conventional tension spring, and may be manually tensioned by a worker while a tensile force is set to ensure appropriate elasticity at the time of installation.

The head 121 of the variable hook 120 is formed in a hook shape and is formed so as to be able to be attached to and detached from the handles H and H ' That is, it is possible to arrange the grips H and H 'through the open surface of the grip so that the outer diameters of the grips H and H' are in contact with the inner curved portion.

The fixed hook 130 is also formed of a claw-like head 131 and a base 132 that are the same as the variable hook 120 and is symmetric with respect to the variable hook 120 about the main bar 110. However, the fixed hook 130 is configured to secure the durability by fixing the base 132 to the main bar 110, unlike the variable hook 120 which operates to pull in and out for adjusting the length.

In the variable hook 120, the center of the loop of the head 121 is located on the extension of the central axis of the main bar 110, and the base 122 has a rectangular cross section corresponding to the hollow section 111 And a support rod 123 for forming a shape of a bevel in a predetermined length coaxially with the main bar 110. [

The support rod 123 is engaged with the tip end 142 of the elastic member 140 that fixes the distal end 141 to the inner bottom portion 112 of the hollow portion 111, So that the distance between the variable hook 120 and the fixed hook 130 can be adjusted.

The four side surfaces of the support rod 123 are supported by the inner four wall surfaces of the hollow portion 111 so that the main bar 110, the variable hook 120 and the fixed hook 130 are horizontally So as to maintain the shape thereof.

Therefore, as described above, since the hollow portion 111 formed in the main bar 110 and the opening 113 communicating therewith are formed in a polygonal shape and the support rod 123 is formed of a polygonal shape, preferably a rectangular shape The variable hook 120 is rotated to prevent the fixing hook 130 fixed to the main bar 110 and the heads 121 and 131 from being positioned asymmetrically, Since the frictional area formed on the rectangular cross section of the main bar 110 contacting the main bar 110 is increased and the supporting force between the main bar 110 and the support rod 123 can be maintained, It is possible to prevent deformation such as warpage or deviations in the periphery.

The main bar 110, the variable hook 120 and the fixed hook 130 constituting the door security bar 100 of the present invention are designed to have durability, heat resistance, corrosion resistance And it is preferable to be formed of a stainless steel material having a relatively light weight and excellent workability, but it is not necessarily limited to the same material.

In order to prevent slippage due to gravity when the variable hook 120 and the fixed hook 130 are horizontally mounted on the outer bar handle H and H 'of the vertical bar shape on the outer circumferential surface of the heads 121 and 131, 150) so as to stably maintain the position even when installed on a smooth material such as the handle (H, H ') of the door (D) of the train.

The state of use of the door security bar 100 to which the present invention has been applied will be described below.

As shown in FIGS. 3 to 4, the door security bar 100 of the present invention is provided such that the fixed hook 130 and the variable hook 120 are symmetrical on both sides of the main bar 110.

Unlike the fixed hook 130 which is fixed to the main bar 110, the variable hook 120 is provided to be pulled in and out from one side of the main bar 110.

3 (c), the variable hooks 120 and 120 are formed on the tips 142 of the elastic members 140 having the ends 141 fixed to the bottom 112 of the hollow portion 111 of the main bar 110, Concretely, the rear end of the support rod 123 coupled to the base 122 of the variable hook 120 is engaged and elastically drawn in and out.

4 (c), the support rod 123 is inserted into the hollow portion 111 in the pulled state, and the support rod 123 is inserted into the hollow portion 111 And is drawn out to the outside of the hollow portion 111.

The maximum extension of the support rod 123 may be limited by the tensile force of the elastic member 140 or by providing a predetermined stopper (not shown) at the rear end of the support rod 123 There will be.

5 to 6, when the safety bar 100 of the present invention is installed on the door D of the train, the fixing hook 130 is first hooked to the other handle H ' The variable hook 120 is pulled out from the main bar 110 and hooked on the one side handle H.

The pulling force of the elastic member 140 acts to exert a force between the fixed hook 130 and the variable hook 120 so that the two hooks H and H ' Further, the variable hook 120 and the fixed hook 130 provide a more stable installation by the friction means 150 provided on the variable hook 120 and the fixed hook 130, respectively.

In addition, as shown in the example image of FIG. 6, the warning mark 160 attached to the main bar 110 may be provided in various phrases and designs, and may be appropriately used according to the work situation to alert the operator and the passenger do.

As described above, the door safety bar 100 of the present invention can be installed and removed easily and quickly on the door of the train door (D) as well as on other openings of the worksite to secure durability Thereby preventing the occurrence of a fall accident and the like.

100: Door security bar
110: Main bar
111: hollow portion
112:
113: opening
120: Adjustable hook
123: support rod
130: Fixed hook
140: elastic member
150: Friction means
160: warning sign
D: Door
H, H ': Handle

Claims

A main bar 110 having a length corresponding to the width of the door D and hooks 121 and 131 attached to one side of the door D and the other side handles H and H ' 1. An access door safety bar comprising a variable hook (120) and a fixed hook (130);
The fixing hook 130 fixes the base 132 to one side of the main bar 110 so that the center of the ring of the head 131 is located on an extension of the central axis of the main bar 110;
A hollow portion 111 having a rectangular cross section is formed at a predetermined depth on the other side of the main bar 110 and an opening 113 is provided on the outside of the hollow portion 111.
The variable hook 120 is formed such that the center of the loop of the head 121 is located on an extension of the central axis of the main bar 110 and the base 122 is provided with a rectangular shape in cross section corresponding to the hollow portion 111 And a support rod 123 which coaxially forms a predetermined length from the main bar 110;
The support rod 123 is engaged with the tip end 142 of the elastic member 140 that fixes the distal end 141 to the inner bottom portion 112 of the hollow portion 111 and elastically retracts into the hollow portion 111 And adjusts the distance between the variable hook 120 and the fixed hook 130 as it is drawn out;
The four side surfaces of the support rod 123 are supported by the inner four wall surfaces of the hollow portion 111 so that the main bar 110, the variable hook 120 and the fixed hook 130 are horizontally Wherein the door is configured to maintain the shape of the door.

delete