Construction elevator anti-collision device

Abstract

The invention discloses an anti-collision device of a construction elevator. The anti-collision device comprises a construction elevator door and a three-dimensional buffer device, the three-dimensional buffering device can synchronously ascend and descend along with the construction elevator door, when the construction elevator door is opened, the three-dimensional buffering device automatically moves upwards along with the construction elevator door without affecting entering and exiting of the construction elevator, when the construction elevator door is closed, the three-dimensional buffering device automatically moves downwards, and the three-dimensional protection effect is achieved through the adjustable three-dimensional device; the telescopic buffering device can maintain the safe distance between the trolley and the construction elevator door, safety accidents are avoided, the device adopts the buffering energy absorption technology of the spring, impact force can be effectively dispersed when the trolley collides, the elevator door is protected against damage, meanwhile, the construction method is simple, convenient and easy to implement, and the construction cost is reduced. Rapid installation can be achieved without greatly transforming an existing construction elevator, and powerful support is provided for construction safety management.

Description

Technical Field

[0001] The invention relates to the technical field of construction engineering, and in particular to an anti-collision device for a construction elevator. Background Art

[0002] In actual engineering applications, we are well aware that construction elevators are an indispensable vertical transportation tool in high-rise building operations, and their safety is directly related to the safety of life and property of construction workers.

[0003] However, due to the complex environment of the construction site and the frequent shuttling of transportation tools such as carts, operational errors or accidents are inevitable, resulting in incidents of hitting the elevator door from time to time. This may not only damage the elevator door structure, but may also cause catastrophic consequences such as the elevator losing control and falling, seriously threatening construction safety. In order to avoid such situations and better protect the construction elevator from damage, it is necessary to design and modify the construction elevator's anti-collision device to effectively prevent the phenomenon of poor protection effect. Summary of the invention

[0004] In order to solve the problems raised in the above-mentioned background technology, the purpose of the present invention is to provide an anti-collision device for a construction elevator, which has the advantages of good protection effect and easy use, and solves the problem that due to the complex construction site environment and the frequent shuttling of transportation tools such as carts, there are inevitable operational errors or accidents, which lead to frequent collisions with elevator doors. This may not only damage the elevator door structure, but may also cause catastrophic consequences such as elevator loss of control and falling, seriously threatening construction safety.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a construction elevator anti-collision device, comprising a construction elevator door and a three-dimensional buffer device, the construction elevator door comprising a construction elevator door frame and a lifting elevator door, the construction elevator door frame restricts the lifting elevator door from moving up and down along its vertical groove, and the three-dimensional buffer device comprises a retractable buffer device, an adjustable three-dimensional device and a protective net.

[0006] As a preferred embodiment of the present invention, the retractable buffer device includes a buffer stopper rod arranged on the left side of the construction elevator door, the front side and the rear side of the buffer stopper rod close to the lifting elevator door are fixedly connected with a slidable inner sleeve rod, the side of the slidable inner sleeve rod close to the lifting elevator door is fixedly connected with a telescopic spring, the front side and the rear side of the left side of the lifting elevator door are fixedly connected with a fixed outer sleeve rod, one end of the telescopic spring away from the slidable inner sleeve rod is fixedly connected to the right side of the inner wall of the fixed outer sleeve rod, the slidable inner sleeve rod is slidably connected to the fixed outer sleeve rod, the bottom of the protective net is fixedly connected to the top of the buffer stopper rod by bolts, the surface of the fixed outer sleeve rod is fixedly connected with a connecting short rod, the surface of the connecting short rod is fixedly connected with a guide wheel, the guide wheel is rollingly connected to the construction elevator door frame, the top and bottom of the fixed outer sleeve rod are provided with groove slideways, the top and bottom of the slidable inner sleeve rod are provided with buckles matching the groove slideways, which are used to limit the slidable inner sleeve rod from sliding left and right, and the end of the fixed outer sleeve rod close to the lifting elevator door is closed.

[0007] As preferred embodiment of the present invention, the adjustable three-dimensional device includes a bottom slide rod fixedly connected to the top of the fixed outer sleeve rod, the surface of the bottom slide rod is movably connected with a retractable scissors brace, the top of the retractable scissors brace is movably connected with a top slide rod, the middle part of the bottom slide rod and the middle part of the top slide rod are both provided with slide grooves, which are respectively used to limit the relative sliding of the bottom movable end and the top movable end of the retractable scissors brace, the retractable scissors brace can be telescopically adjusted along the vertical direction, and the vertical telescopic height is determined by the slide groove length on the surfaces of the bottom slide rod and the top slide rod, the top of the top slide rod is fixedly connected to a limit rod, the left side of the limit rod is fixedly connected to an anti-collision baffle rod, the left side of the anti-collision baffle rod is fixedly connected to the protective net by bolts, a small round rod is provided on the side of the limit rod close to the construction elevator door frame, and the side of the construction elevator door frame close to the lifting elevator door is fixedly connected to a limit card slot for controlling the vertical displacement of the limit rod, and the opening of the limit card slot is set upward.

[0008] As a preferred embodiment of the present invention, the protective net is a flexible mesh, which can be unfolded and folded accordingly according to the relative displacement between the retractable buffer device and the adjustable three-dimensional device.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] 1. The present invention adopts a three-dimensional buffer device which can rise and fall synchronously with the construction elevator door. When the construction elevator door is opened, the three-dimensional buffer device automatically moves up with the construction elevator door without affecting the entry and exit of the construction elevator. When the construction elevator door is closed, the three-dimensional buffer device automatically moves down. The adjustable three-dimensional device is used to achieve a three-dimensional protection effect. The retractable buffer device can maintain a safe distance between the trolley and the construction elevator door to avoid the occurrence of safety accidents. The device adopts the buffering energy absorption technology of the spring, which can effectively disperse the impact force when the trolley collides and protect the elevator door from damage. At the same time, the construction method is simple and easy, and can be quickly installed without major modifications to the existing construction elevator, providing strong support for construction safety management. The device has the advantages of good protection effect and easy use.

[0011] 2. The present invention provides a retractable buffer device. When the trolley moves due to careless operation or inertia, the trolley will first touch the buffer stop rod of the retractable buffer device. Under the push of the horizontal impact force, the slidable inner sleeve rod synchronously extends into the fixed outer sleeve rod, and the telescopic spring begins to gradually compress longitudinally, transmitting the horizontal impact force to the connecting short rod through the fixed outer sleeve rod, and then transmitting it to the construction elevator door frame through the guide wheel, thereby maintaining a safe distance between the trolley and the elevator door. The telescopic spring can absorb and reduce the external impact force of the trolley. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the present invention.

[0013] Figure 2 It is a schematic diagram of the structural disassembly of the present invention.

[0014] Figure 3 It is a schematic structural diagram of the three-dimensional buffer device of the present invention.

[0015] Figure 4 It is a schematic diagram of the structure of the retractable buffer device of the present invention.

[0016] Figure 5 It is a schematic diagram of the structure of the adjustable three-dimensional device of the present invention.

[0017] In the figure: 1. construction elevator door; 101. construction elevator door frame; 102. lifting elevator door; 2. three-dimensional buffer device; 201. retractable buffer device; 2011. buffer stop rod; 2012. slidable inner sleeve rod; 2013. telescopic spring; 2014. fixed outer sleeve rod; 2015. connecting short rod; 2016. guide wheel; 202. adjustable three-dimensional device; 2021. bottom slide groove rod; 2022. retractable scissors support; 2023. top slide groove rod; 2024. anti-collision stop rod; 2025. limit rod; 2026. limit slot; 203. protective net. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] like Figures 1 to 5 As shown, a construction elevator anti-collision device includes a construction elevator door 1 and a three-dimensional buffer device 2. The construction elevator door 1 includes a construction elevator door frame 101 and a lift elevator door 102. The construction elevator door frame 101 limits the lift elevator door 102 from moving up and down along its vertical groove. The three-dimensional buffer device 2 includes a retractable buffer device 201, an adjustable three-dimensional device 202 and a protective net 203.

[0020] refer to Figures 1 to 4 The retractable buffer device 201 includes a buffer stopper rod 2011 arranged on the left side of the construction elevator door 1, and the front and rear sides of the buffer stopper rod 2011 close to the elevator door 102 are fixedly connected with a slidable inner sleeve rod 2012, and the side of the slidable inner sleeve rod 2012 close to the elevator door 102 is fixedly connected with a telescopic spring 2013, and the front and rear sides of the left side of the elevator door 102 are fixedly connected with a fixed outer sleeve rod 2014, and one end of the telescopic spring 2013 away from the slidable inner sleeve rod 2012 is fixedly connected to the right side of the inner wall of the fixed outer sleeve rod 2014, and the slidable inner sleeve rod 2012 is slidably connected to the fixed outer sleeve rod 2014. Then, the bottom of the protective net 203 is fixedly connected to the top of the buffer stop rod 2011 by bolts, the surface of the fixed outer sleeve rod 2014 is fixedly connected with a connecting short rod 2015, the surface of the connecting short rod 2015 is fixedly connected with a guide wheel 2016, the guide wheel 2016 is rollingly connected to the construction elevator door frame 101, the top and bottom of the fixed outer sleeve rod 2014 are provided with groove slides, the top and bottom of the slidable inner sleeve rod 2012 are provided with buckles matching the groove slides, which are used to limit the slidable inner sleeve rod 2012 from sliding left and right, and the end of the fixed outer sleeve rod 2014 close to the elevator door 102 is closed.

[0021] As a technical optimization scheme of the present invention, through the setting of the retractable buffer device 201, when the trolley moves due to careless operation or inertia, the trolley will preferentially touch the buffer stop rod 2011 of the retractable buffer device 201. Under the push of the horizontal impact force, the slidable inner sleeve rod 2012 synchronously extends into the fixed outer sleeve rod 2014, and the telescopic spring 2013 begins to gradually compress longitudinally, and the horizontal impact force is transmitted to the connecting short rod 2015 through the fixed outer sleeve rod 2014, and then transmitted to the construction elevator door frame 101 through the guide wheel 2016, so as to maintain a safe distance between the trolley and the elevator door 102. The telescopic spring 2013 can absorb and reduce the external impact force of the trolley.

[0022] refer to Figure 1 , Figure 2 , Figure 3 and Figure 5 The adjustable three-dimensional device 202 includes a bottom slide rod 2021 fixedly connected to the top of the fixed outer sleeve rod 2014, the surface of the bottom slide rod 2021 is movably connected with a retractable scissors support 2022, the top of the retractable scissors support 2022 is movably connected with a top slide rod 2023, and the middle of the bottom slide rod 2021 and the middle of the top slide rod 2023 are provided with slide grooves, which are respectively used to limit the relative sliding of the bottom movable end and the top movable end of the retractable scissors support 2022, and the retractable scissors support 2022 can be telescopically adjusted in the vertical direction, and the vertical telescopic height is controlled by the bottom slide rod 2021 The limit rod 2025 is fixedly connected to the top of the top slide rod 2023, and the left side of the limit rod 2025 is fixedly connected with an anti-collision baffle rod 2024. The left side of the anti-collision baffle rod 2024 is fixedly connected to the protective net 203 by bolts. A small round rod is provided on the side of the limit rod 2025 close to the construction elevator door frame 101, and a limiting card slot 2026 is fixedly connected to the side of the construction elevator door frame 101 close to the lifting elevator door 102, which is used to control the vertical displacement of the limit rod 2025, and the opening of the limiting card slot 2026 is set upward.

[0023] As a technical optimization scheme of the present invention, through the setting of the adjustable three-dimensional device 202, when the trolley moves due to careless operation or inertia, if the trolley touches the protective net 203, the protective net 203 can block the direct contact between the trolley and the elevator door, and decompose the external horizontal thrust to the retractable buffer device 201 and the adjustable three-dimensional device 202. The retractable buffer device 201 decomposes the horizontal impact force in the same way as above. The anti-collision baffle bar 2024 of the adjustable three-dimensional device 202 transfers the horizontal impact force it bears to the limit card slot 2026 through the small round rod of the limit rod 2025. Since the limit card slot 2026 is fixed on the inner side of the construction elevator door frame 101, the horizontal impact force is finally transferred to the construction elevator door frame 101, preventing the elevator door 102 from being damaged by the external impact force, thereby avoiding the occurrence of safety accidents.

[0024] refer to Figures 1 to 3 The protective net 203 is a flexible mesh, which can be unfolded and folded according to the relative displacement between the retractable buffer device 201 and the adjustable three-dimensional device 202.

[0025] As a technical optimization solution of the present invention, the protective net 203 is configured as a flexible mesh so that the protective net 203 can be unfolded and folded accordingly according to the relative displacement between the retractable buffer device 201 and the adjustable three-dimensional device 202. When the trolley moves due to careless operation or inertia, if the trolley touches the protective net 203, the protective net 203 can block direct contact between the trolley and the elevator door.

[0026] When the elevator door 102 opens upward, the retractable buffer device 201 will be driven to automatically move upward with the elevator door 102, and the retractable scissor support 2022 will be pushed upward and continuously shrink vertically under the action of gravity, and the protective net 203 will also fold naturally, and finally the small round rod of the limit rod 2025 will be separated from the limit slot 2026, and the three-dimensional buffer device 2 will rise to the top with the elevator door 102;

[0027] When the elevator door 102 is closed downward, the three-dimensional buffer device 2 is driven to automatically move downward with the elevator door 102. During the downward movement, the small round rod of the limit rod 2025 immediately falls into the limit slot 2026, and the downward movement of the limit rod 2025 is restricted. The top of the retractable scissors support 22 will not be able to move. As the elevator door 102 drives the three-dimensional buffer device 2 to continue to move downward, the retractable scissors support 22 will be telescopically adjusted in the vertical direction. When the scissor support connecting rods at the top and bottom of the retractable scissors support 22 slide to the farthest ends of the bottom slide slot rod 2021 and the top slide slot rod 2023, the elevator door 102 is closed, and the protective net 203 performs a corresponding expansion action in the relative displacement between the retractable buffer device 201 and the adjustable three-dimensional device 202, so that the adjustable three-dimensional device 202 achieves a three-dimensional protection effect.

[0028] When the trolley moves due to careless operation or inertia, the trolley will first touch the buffer stopper rod 2011 of the telescopic buffer device 201. Under the push of the horizontal impact force, the slidable inner sleeve rod 2012 will synchronously extend into the fixed outer sleeve rod 2014, and the telescopic spring 2013 will begin to gradually compress longitudinally, transferring the horizontal impact force to the connecting short rod 2015 through the fixed outer sleeve rod 2014, and then to the construction elevator door frame 101 through the guide wheel 2016, so as to maintain a safe distance between the trolley and the elevator door 102. The telescopic spring 2013 can absorb and slow down the external impact force of the trolley.

[0029] When the trolley moves due to careless operation or inertia, if the trolley touches the protective net 203, the protective net 203 can block the direct contact between the trolley and the elevator door, and decompose the external horizontal thrust to the retractable buffer device 201 and the adjustable three-dimensional device 202. The retractable buffer device 201 decomposes the horizontal impact force in the same way as above. The anti-collision barrier rod 2024 of the adjustable three-dimensional device 202 transfers the horizontal impact force it bears to the limiting card slot 2026 through the small round rod of the limiting rod 2025. Since the limiting card slot 2026 is fixed on the inner side of the construction elevator door frame 101, the horizontal impact force is finally transmitted to the construction elevator door frame 101, thereby preventing the elevator door 102 from being damaged by external impact force and avoiding the occurrence of safety accidents.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A construction elevator anti-collision device, comprising a construction elevator door (1) and a three-dimensional buffer device (2), characterized in that: The construction elevator door (1) comprises a construction elevator door frame (101) and a lift elevator door (102), wherein the construction elevator door frame (101) limits the lift elevator door (102) from moving up and down along its vertical groove, and the three-dimensional buffer device (2) comprises a retractable buffer device (201), an adjustable three-dimensional device (202) and a protective net (203).

2. The anti-collision device for a construction elevator according to claim 1, characterized in that: The telescopic buffer device (201) comprises a buffer stopper rod (2011) arranged on the left side of the construction elevator door (1); the front side and the rear side of the buffer stopper rod (2011) close to the elevator door (102) are fixedly connected to a slidable inner sleeve rod (2012); the side of the slidable inner sleeve rod (2012) close to the elevator door (102) is fixedly connected to a telescopic spring (213); the front side and the rear side of the left side of the elevator door (102) are fixedly connected to a fixed outer sleeve rod (2014); one end of the telescopic spring (2013) away from the slidable inner sleeve rod (2012) is fixedly connected to the right side of the inner wall of the fixed outer sleeve rod (2014); the slidable inner sleeve rod (2012) and the fixed outer sleeve rod (2014) slide together. The protective net (203) is dynamically connected to the top of the buffer stopper rod (2011) by bolts, the surface of the fixed outer sleeve rod (2014) is fixedly connected with a connecting short rod (2015), the surface of the connecting short rod (2015) is fixedly connected with a guide wheel (2016), the guide wheel (2016) is rollingly connected to the construction elevator door frame (101), the top and bottom of the fixed outer sleeve rod (2014) are provided with groove slideways, the top and bottom of the slidable inner sleeve rod (2012) are provided with buckles matching the groove slideways, which are used to limit the slidable inner sleeve rod (2012) from sliding left and right, and the end of the fixed outer sleeve rod (2014) close to the lift door (102) is closed.

3. The anti-collision device for a construction elevator according to claim 2, characterized in that: The adjustable three-dimensional device (202) comprises a bottom slide rod (2021) fixedly connected to the top of the fixed outer sleeve rod (2014); the surface of the bottom slide rod (2021) is movably connected to a retractable scissors support (2022); the top of the retractable scissors support (222) is movably connected to a top slide rod (2023); the middle of the bottom slide rod (2021) and the middle of the top slide rod (2023) are both provided with slide grooves, which are respectively used to limit the relative sliding of the bottom movable end and the top movable end of the retractable scissors support (2022); the retractable scissors support (222) can be telescopically adjusted in the vertical direction, and the vertical telescopic height is determined by the bottom slide rod (2021) and the top slide rod (2023). The length of the slide groove on the surface of the slide groove rod (2023) is determined, the top of the top slide groove rod (2023) is fixedly connected to a limit rod (2025), the left side of the limit rod (2025) is fixedly connected to an anti-collision baffle rod (2024), the left side of the anti-collision baffle rod (2024) is fixedly connected to the protective net (203) by bolts, a small round rod is provided on the side of the limit rod (2025) close to the construction elevator door frame (101), and a limit slot (2026) is fixedly connected to the side of the construction elevator door frame (101) close to the lift elevator door (102), which is used to control the vertical displacement of the limit rod (2025), and the opening of the limit slot (2026) is set upward.

4. The anti-collision device for a construction elevator according to claim 1, characterized in that: The protective net (203) is a flexible mesh sheet, and can be unfolded and folded accordingly according to the relative displacement between the retractable buffer device (201) and the adjustable three-dimensional device (202).

5. A working method of a construction elevator anti-collision device, characterized in that: When the elevator door (102) opens upward, the retractable buffer device (201) is driven to automatically move upward along with the elevator door (102), and the retractable scissor support (2022) is pushed upward and continuously shrinks in the vertical direction under the action of gravity, and the protective net (203) is also naturally folded, and finally the small round rod of the limit rod (225) is separated from the limit slot (226), and the three-dimensional buffer device (2) rises to the top along with the elevator door (102); When the elevator door (102) is closed downward, the three-dimensional buffer device (2) is driven to automatically move downward along with the elevator door (102). During the downward movement, the small round rod of the limit rod (2025) immediately falls into the limit slot (2026), and the limit rod (2025) is restricted from moving downward. The top of the retractable scissors support (2022) cannot move. As the elevator door (102) drives the three-dimensional buffer device (2) to continue to move downward, the retractable scissors support (2022) will be telescopically adjusted in the vertical direction. When the scissor support connecting rods at the top and bottom of the retractable scissors support 2022 slide to the farthest ends of the slide grooves of the bottom slide groove rod (221) and the top slide groove rod (223), the elevator door (102) is closed. The protective net (203) performs a corresponding expansion action in the relative displacement between the retractable buffer device (201) and the adjustable three-dimensional device (202), so that the adjustable three-dimensional device (202) achieves a three-dimensional protection effect. When the trolley moves due to careless operation or inertia, the trolley will first touch the buffer stopper rod (211) of the telescopic buffer device (201). Under the push of the horizontal impact force, the slidable inner sleeve rod (212) will synchronously extend into the fixed outer sleeve rod (214), and the telescopic spring (2013) will begin to gradually compress longitudinally, transmitting the horizontal impact force to the connecting short rod (2015) through the fixed outer sleeve rod (2014), and then transmitting it to the construction elevator door frame (101) through the guide wheel (2016), so as to maintain a safe distance between the trolley and the elevator door (102). The telescopic spring (2013) can absorb and slow down the external impact force of the trolley. When the trolley moves due to careless operation or inertia, if the trolley touches the protective net (203), the protective net (203) can block direct contact between the trolley and the elevator door, and decompose and transmit the external horizontal thrust to the telescopic buffer device (201) and the adjustable three-dimensional device (202). The telescopic buffer device (201) decomposes and transmits the horizontal impact force in the same way as above. The anti-collision blocking rod (224) of the adjustable three-dimensional device (202) transmits the horizontal impact force it bears to the limiting card slot (2026) through the small round rod of the limiting rod (225). Since the limiting card slot (2026) is fixed to the inner side of the construction elevator door frame (101), the horizontal impact force is transmitted to the construction elevator door frame (101).

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