Fixed ladder trespass prevention apparatus

Abstract

The present invention can prevent safety accidents such as falls by warning unauthorized persons about the use of the ladder and preventing unauthorized intrusion. The features of the present invention include an anti-climbing plate (100) that covers the front of a ladder (10) to prevent unauthorized persons from climbing, an anti-climbing plate hanger (200) formed at the rear and upper part of the anti-climbing plate (100) and supported by being hooked onto a horizontal shaft (12) formed on the ladder (10), a lower hanger (300) provided to be vertically movable at the rear and lower part of the anti-climbing plate (100) and supported by being hooked onto the lower part of a horizontal shaft (12) located at the lower part of the ladder (10), a support part (400) that penetrates the anti-climbing plate (100) and the lower hanger (300) and is supported by being hooked onto the upper part of the horizontal shaft (12) supported by the lower hanger (300), and a method for locking the support part (400) to the anti-climbing plate (100) so that the state in which the support part (400) is hooked onto the horizontal shaft (12) of the ladder (10) is maintained. It includes a locking part (400).

Description

Technology Field

[0001] The present invention relates to a fixed ladder intrusion prevention device capable of preventing safety accidents such as falls by warning unauthorized persons from using the ladder and preventing unauthorized intrusion. Background Technology

[0002] Generally, power plants, steel mills, and factories provide ladders for high-altitude work to allow workers to ascend and descend for maintenance and other purposes.

[0003] These aerial work ladders include an access restriction device that is normally closed and opened to allow workers to enter when maintenance work is being performed.

[0004] However, conventionally, there was a problem in that not only the responsible worker but also surrounding workers or the general public could easily open and enter the access restriction device, thereby causing safety accidents.

[0005] The background technology of the present invention is disclosed in Registered Patent Publication No. 10-2120692 (June 3, 2020) of the Korean Intellectual Property Office. The problem to be solved

[0006] The problem that the present invention aims to solve is to provide a fixed ladder intrusion prevention device that can prevent safety accidents such as falls by preventing unauthorized entry into the ladder while warning unauthorized persons from using the ladder. means of solving the problem

[0007] A fixed ladder unauthorized intrusion prevention device according to one embodiment of the present invention is characterized by comprising: an anti-climbing plate (100) that covers the front of a ladder (10) to prevent unauthorized persons from climbing; an anti-climbing plate hanger (200) formed at the rear and upper part of the anti-climbing plate (100) and supported by being hooked onto a horizontal shaft (12) formed on the ladder (10); an anti-climbing plate fixing part (300) formed on the anti-climbing plate (100) and fixed to a vertical shaft (12) formed on the ladder (10); and a locking part (400) that locks the anti-climbing plate (100) to the horizontal shaft (12) of the ladder (10).

[0008] Preferably, the anti-climbing plate (100) is formed with a handle (110) that is grasped by a worker, and the handle (110) is formed on both sides of the anti-climbing plate (100).

[0009] Preferably, the anti-climbing plate (100) is formed by bending both sides to form two side faces (120), and the anti-climbing plate fixing part (300) is provided on both sides of the anti-climbing plate (100) and is composed of a magnet that is magnetically attached to the vertical shaft (11) of the ladder (10).

[0010] Preferably, the anti-climbing plate (100) has a through hole (130) formed in its upper portion, and the locking portion (400) is characterized by including a locking chain (410) that passes through the through hole (130) of the anti-climbing plate (100) and engages with the horizontal shaft (12) of the ladder (10), and a lock (420) that locks both ends of the locking chain (410).

[0011] Preferably, the locking part (400) is characterized by including a hook (430) that penetrates the through hole (130) of the anti-climbing plate (100) and has one end hooked onto the horizontal shaft (12) of the ladder (10), a closing plate (440) through which the hook (430) penetrates and which closes the through hole (130) of the ladder (10), and a lock (420) that is locked to the other end of the hook (430) that penetrates the closing plate (440).

[0012] Preferably, one end of the hook (430) is bent and fixed by being hooked onto the horizontal shaft (12), and the other end has a hook hole (431) formed therein, and the closing plate (440) is formed with a diameter larger than the through hole (130) of the anti-climbing plate (100) to close the through hole (130), and the lock (420) is locked by passing through the hook hole (431) of the hook (430) and is fixed by being hooked onto the closing plate (440). Effects of the invention

[0013] The present invention can prevent safety accidents such as falls by warning unauthorized persons about the use of the ladder and preventing unauthorized intrusion. Brief explanation of the drawing

[0014] FIG. 1 is a front view showing a fixed ladder intrusion prevention device according to an embodiment of the present invention. FIG. 2 is a perspective view showing the rear side of the present invention. FIG. 3 is a perspective view showing the present invention fixed to a ladder. FIG. 4 is a cross-sectional view showing the present invention fixed to a ladder. FIG. 5 is an exploded perspective view showing an embodiment of a locking part applied to the present invention. FIG. 6 is a perspective view showing the combined state of FIG. 5. Fig. 7 is a cross-sectional view of Fig. 6. Specific details for implementing the invention

[0015] Hereinafter, the present invention will be examined in detail with reference to the attached drawings.

[0016] As illustrated in FIGS. 1 to 5, a fixed ladder intrusion prevention device according to an embodiment of the present invention comprises: an intrusion prevention plate (100) that covers the front of the ladder (10) to prevent unauthorized persons from climbing; an intrusion prevention plate hanger (200) formed at the rear and upper part of the intrusion prevention plate (100) and supported by being hooked onto a horizontal shaft (12) formed on the ladder (10); an intrusion prevention plate fixing part (300) formed on the intrusion prevention plate (100) and fixed to a vertical shaft (12) formed on the ladder (10); and a locking part (400) that locks the intrusion prevention plate (100) to the horizontal shaft (12) of the ladder (10).

[0017] First, the ladder (10) is composed of a plurality of vertical shafts (11) whose lower ends are supported on the ground and whose upper ends are supported on a building or structure, and a plurality of horizontal shafts (12) whose ends are fixed to the vertical shafts (11) while being spaced vertically apart at a certain distance from each other. Thus, a worker can step on the horizontal shafts (12) sequentially to go up and down the ladder (10).

[0018] The anti-climbing plate (100) is formed with a width that covers the front of the ladder (10) and is formed to be long vertically. This anti-climbing plate (100) is formed with a width that covers the vertical shafts (11) and a length that covers several horizontal shafts (12) on the ladder (10). Therefore, since the anti-climbing plate (100) covers the lower part of the ladder (10), unauthorized persons are prevented from using the ladder (10).

[0019] The anti-climbing plate (100) is bent at both ends to form the side surfaces (120). Since the anti-climbing plate (100) is bent at both ends, it is formed in a '∪' shape when viewed from above, making the structure sturdy. In other words, deformation such as bending of the anti-climbing plate (100) can be prevented.

[0020] The climbing prevention plate (100) has the word 'Warning' formed on its front surface. Therefore, a person attempting to climb the ladder (10) without permission can check the warning message and give up using the ladder (10).

[0021] The climbing prevention plate (100) may have the name of the facility (multiple desalination facility) that can be moved via the ladder (10), information on the manager managing the facility (position, phone number), and disaster safety reporting information (phone number) printed on it. Therefore, a person who checks for a malfunction in the facility can report the malfunction via telephone.

[0022] Additionally, the anti-climbing plate (100) is formed with a handle (110) that is grasped by a worker. The handle (110) is formed on both sides of the anti-climbing plate (100). That is, the worker can move the anti-climbing plate (100) conveniently and stably by grasping the handles (110) simultaneously with both hands. The handle (110) is formed in the shape of approximately '[' and ']' and protrudes minimally, so that external interference can be minimized.

[0023] Meanwhile, the anti-climbing plate (100) has through holes (130) formed in the upper and lower parts.

[0024] The prevention plate hanger (200) is formed at the rear of the prevention plate (100), with its end bent downward. The side shape of this prevention plate hanger (200) is formed in a '┐' shape and is supported by being hung on the upper part of the horizontal shaft (12).

[0025] The anti-climbing plate hangers (200) are composed of multiple members and spaced apart at regular intervals. That is, the anti-climbing plate hangers (200) are hung on both sides of the horizontal shaft (12). Therefore, the anti-climbing plate (100) maintains a proper posture without tilting to one side.

[0026] The anti-climbing plate fixing part (300) is provided on both sides of the anti-climbing plate (100) and consists of magnets that are magnetically attached to the vertical shaft (11) of the ladder (10). The magnets are formed on the side surfaces (120) formed by bending both sides of the anti-climbing plate (100). Therefore, the anti-climbing plate (100) is magnetically fixed to the ladder (10), so that it does not lift up even when the wind blows, and the fixed state can be firmly maintained.

[0027] The magnets, which are the fixing parts (300) of the prevention plate, are composed of multiple magnets spaced apart at regular intervals. That is, the fixed state of the prevention plate (100) can be maintained more firmly by the multiple magnets.

[0028] The locking part (400) includes a locking chain (410) that passes through the through hole (130) of the anti-climbing plate (100) and engages with the horizontal shaft (12) of the ladder (10), and a lock (420) that locks both ends of the locking chain (410).

[0029] Since the locking chain (410) passes through the through hole (130) of the anti-climbing plate (100) and is engaged with the horizontal shaft (12) of the ladder (10), both ends are locked by the lock (420), so the anti-climbing plate (100) is not separated from the ladder (10). The locking chain (410) may be replaced with a wire.

[0030] And the lock (420) is unlocked by a key carried by an authorized worker. Therefore, when the worker carrying the key unlocks the locking part (400), the ladder (10) can be used.

[0031] Here, the through hole (130) of the anti-climbing plate (100) is formed with a diameter smaller than that of the lock (420). That is, the lock (420) cannot pass through the through hole (130) of the anti-climbing plate (100), so the locked state can be maintained.

[0032] Additionally, the locking part (400) is composed of multiple parts and can be locked by penetrating through the through holes (130) formed in the upper and lower parts of the anti-climbing plate (100), respectively. Since the upper and lower parts of the anti-climbing plate (100) are fixed to the upper and lower parts of the ladder (10) by the multiple locking parts (400), the state in which the anti-climbing plate (100) is fixed to the ladder (10) can be maintained more stably and firmly.

[0033] As such, according to the present invention, the climbing prevention plate (100) is fixed in a state covering the front of the ladder (10), so that an unauthorized person cannot climb the ladder (10). In other words, safety accidents such as falls involving unauthorized people can be prevented.

[0034] And as illustrated in FIGS. 5 to 7, the locking part (400) includes a hook (430) that penetrates the through hole (130) of the anti-climbing plate (100) and has one end hooked onto the horizontal shaft (12) of the ladder (10), a closing plate (440) through which the hook (430) penetrates and closes the through hole (130) of the ladder (10), and a lock (420) that is locked to the other end of the hook (430) that penetrates the closing plate (440).

[0035] One end of the hook (430) is bent downward and fixed by being hooked onto the horizontal shaft (12), and a hook hole (431) is formed at the other end.

[0036] The closing plate (440) is formed with a diameter larger than the through hole (130) of the anti-climbing plate (100) to close the through hole (130). A through hole (441) through which a hook (430) passes is formed in the closing plate (440).

[0037] The lock (420) is locked by passing through the loop hole (431) of the hook (430) and is fixed by being hooked onto the closing plate (440).

[0038] Accordingly, the hook (430) passes through the through hole (441) of the closing plate (440) and then passes through the through hole (130) of the anti-climbing plate (100) to be hooked onto the horizontal shaft (12) of the ladder (10). Then, the lock (420) passes through the hook hole (431) of the hook (430) and is locked.

[0039] In this way, the hook (430) can be securely maintained on the horizontal shaft (12) of the ladder (10).

[0040] In addition, when the hooks (430) are configured in multiple numbers, they each pass through the through holes (130) formed in the upper and lower parts of the anti-climbing plate (100) and are hooked onto the horizontal shafts (12) formed in the upper and lower parts of the ladder (10). Then, the hooks (430) are each locked by multiple locks (420). As a result, the upper and lower parts of the anti-climbing plate (100) are fixed to the upper and lower parts of the ladder (10), so that the fixed state of the anti-climbing plate (100) can be firmly maintained.

[0041] As such, the present invention is a very useful invention because it can prevent safety accidents such as falls by warning unauthorized persons about the use of the ladder and preventing unauthorized intrusion.

[0042] Those skilled in the art to which the present invention pertains will understand that the present invention may be implemented in other specific forms without altering its technical concept or essential features. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive, and the scope of the present invention is defined by the claims set forth below rather than by the detailed description, and all modifications or variations derived from the meaning and scope of the claims and their equivalents should be interpreted as being included within the scope of the present invention. Explanation of the symbols

[0043] 10 : Ladder 11 : Vertical shaft 12 : Horizontal shaft 100 : Anti-climbing plate 110: Handle 120: Both sides 130 : Through hole 200 : Guard plate hanger 300 : Guard plate fixing part 400 : Locking part 410 : Locking Chain 420 : Lock 430 : Hook 431 : Hook hole 440 : Closure plate 441 : Pass hole

Claims

Claim 1 The device includes an anti-climbing plate (100) that covers the front of the ladder (10) to prevent unauthorized persons from climbing, an anti-climbing plate hanger (200) formed at the rear and upper part of the anti-climbing plate (100) and supported by being hooked onto a horizontal shaft (12) formed on the ladder (10), an anti-climbing plate fixing part (300) formed on the anti-climbing plate (100) and fixed to a vertical shaft (12) formed on the ladder (10), and a locking part (400) that locks the anti-climbing plate (100) to the horizontal shaft (12) of the ladder (10). The anti-climbing plate (100) has a through hole (130) formed at the upper part, and the locking part (400) includes a hook (430) that penetrates the through hole (130) of the anti-climbing plate (100) and has one end hooked onto the horizontal shaft (12) of the ladder (10), and the hook (430) penetrates and A fixed ladder unauthorized intrusion prevention device comprising a closing plate (440) that closes a through hole (130) of a ladder (10) and a lock (420) that is locked to the other end of a hook (430) that penetrates the closing plate (440), wherein one end of the hook (430) is bent and fixed by being hooked onto a horizontal shaft (12) and a hook hole (431) is formed at the other end, the closing plate (440) is formed with a diameter larger than the through hole (130) of the climbing prevention plate (100) to close the through hole (130), and the lock (420) penetrates the hook hole (431) of the hook (430) and is locked and fixed by being hooked onto the closing plate (440). Claim 2 A fixed ladder unauthorized intrusion prevention device according to claim 1, wherein the anti-climbing plate (100) has a handle (110) formed thereon for a worker to grip, and the handle (110) is formed on both sides of the anti-climbing plate (100). Claim 3 A fixed ladder unauthorized intrusion prevention device according to claim 1, wherein the anti-climbing plate (100) has both sides bent to form both sides (120), and the anti-climbing plate fixing part (300) is provided on both sides of the anti-climbing plate (100) and is composed of a magnet that is magnetically attached to the vertical shaft (11) of the ladder (10). Claim 4 delete Claim 5 delete Claim 6 delete

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