Construction elevator with safety protection device

Abstract

The utility model provides a construction elevator with a safety protection device, which belongs to the technical field of construction elevators and comprises an elevator cage and a construction elevator body, side rails are arranged on two sides in the elevator cage, a top beam is arranged on the tops of the side rails, a lifting device is arranged at the bottom of the top beam, and the lifting device is connected with the construction elevator body. The construction elevator body comprises an elevator basket, channel steel is arranged on the two sides of the elevator basket, a hoisting beam is arranged on the tops of the channel steel, electric protective doors are arranged on the front side and the rear side of the elevator basket, guide assemblies are arranged on the two sides of the hoisting beam and slidably connected with the side rails, and an alarm is arranged at the bottom of the hoisting beam. Wherein a control box is arranged on the channel steel on one side, a weight sensor is arranged on the lifting device, a safety lock assembly is arranged on the side, close to the top, of the side rail, and the problems that an existing construction elevator lacks a stable protection device, so that workers are likely to be unstable and slip due to slight shaking of a hanging basket, and even accidents are caused by interference of external factors are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction elevators, and in particular to a construction elevator with a safety protection device. Background Art

[0002] In the field of construction, construction elevators are indispensable vertical transportation tools, especially playing an important role in the construction of high-rise buildings. However, the common construction elevator designs on the market often focus on functionality and efficiency, while safety considerations are relatively insufficient. Existing construction elevators usually build elevator cages on the outside of the construction floors. Although this structure is easy to install and move, its design in terms of safety protection is relatively rough. The double-sided opening hanging basket suspended inside the elevator cage facilitates the entry and exit of workers and the transportation of materials, but it also brings considerable safety hazards. When transporting materials, workers need to enter the hanging basket from the outside, and then enter the building from the other side of the hanging basket after rising. In this process, due to the lack of stable protective devices, workers may lose stability and slip due to slight shaking of the hanging basket, or even be disturbed by external factors and cause accidents. Utility Model Content

[0003] In order to make up for the above deficiencies, the utility model provides a construction elevator with a safety protection device to solve the above problems.

[0004] The utility model is achieved in this way:

[0005] A construction elevator with a safety protection device comprises an elevator cage and a construction elevator body, side rails are arranged on both sides of the interior of the elevator cage, a top beam is arranged on the top of the side rails, a lifting device is arranged at the bottom of the top beam, a steel hinge of the lifting device is connected to the top of the construction elevator body, the construction elevator body comprises an elevator basket, channel steels are arranged on both sides of the elevator basket, a hoisting beam is arranged on the top of the channel steel, electric protective doors are arranged on the front and rear sides of the elevator basket, guide assemblies are arranged on both sides of the hoisting beam, the guide assemblies are slidably connected to the side rails, an alarm is arranged at the bottom of the hoisting beam, a control box is arranged on the channel steel on one side, a weight sensor is arranged on the lifting device, the control box is electrically connected to the electric protective door, the alarm and the weight sensor respectively, and a safety lock assembly is arranged on the side of the side rail close to the top.

[0006] In an embodiment of the utility model, the electric protective door includes a protective door a installed on the front side of the elevator basket and a protective door b installed on the rear side. A magnetic induction sensor a is provided on the side of the side rail near the bottom, and a magnetic induction sensor b is provided on the side near the top.

[0007] In an embodiment of the utility model, the signal output ends of the magnetic induction sensor a and the magnetic induction sensor b are communicatively connected to the signal input ends of the control box, and the signal output end of the control box is communicatively connected to the signal input ends of the protective door a and the protective door b.

[0008] In an embodiment of the utility model, the guide assembly includes a connecting plate, which is arranged on both sides of the lifting beam. A pair of protrusions are arranged at the front and rear edges of the right side of the connecting plate, and the side rails are embedded between the protrusions.

[0009] In an embodiment of the utility model, a placement groove is provided on the front side of the protrusion, a roller is provided inside the placement groove, and the roller is in contact with the side rail.

[0010] In an embodiment of the utility model, the safety lock assembly includes a fixed seat, an electric telescopic rod and a hook lock, the fixed seat is provided with a first hinged seat and a second hinged seat, the hook lock has a first connecting hole and a second connecting hole, the first connecting hole and the second hinged seat are hinged by bolts, and the electric telescopic rod is arranged between the first hinged seat and the second connecting hole.

[0011] In an embodiment of the utility model, a locking ring is provided on the top of the connecting plate, the electric telescopic rod is electrically connected to the control box, and when the electric telescopic rod is extended, the hook lock engages with the locking ring.

[0012] In an embodiment of the utility model, the signal output end of the weight sensor is communicatively connected to the signal input end of the control box, and the signal output end of the control box is communicatively connected to the signal input end of the alarm.

[0013] The beneficial effects of the utility model are as follows: the construction elevator is equipped with multiple safety protection devices, such as electric protective doors, safety lock components, weight sensors, etc. These devices can monitor the status of the elevator in real time and take corresponding protective measures, thereby greatly reducing the safety risks in the construction process; through the intelligent management of the PLC controller, construction personnel only need to press buttons to easily control the lifting and lowering of the elevator and the opening and closing of the protective doors, without the need for complicated manual operations, thereby improving work efficiency; the design of the guide components and side rails makes the elevator more stable during the lifting process, reduces the possibility of shaking and deviation, and enhances the stability and reliability of the elevator; the setting of the weight sensor can effectively prevent the occurrence of overloading. Once the elevator load-bearing capacity reaches the threshold, the alarm will immediately send out an audible and visual alarm to remind construction personnel to adjust the load in time, thereby avoiding safety accidents caused by overloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 The overall structural diagram provided for the implementation mode of the utility model;

[0016] Figure 2 A schematic diagram of the structure of an elevator basket provided in an embodiment of the utility model;

[0017] Figure 3 A schematic diagram of the structure of an elevator basket and a safety lock assembly provided in an embodiment of the utility model;

[0018] Figure 4 for Figure 3 The structural diagram at A in the middle;

[0019] Figure 5 for Figure 3 The structural diagram at B in the middle;

[0020] Figure 6 It is a communication block diagram of the electric protective door switch in the implementation of the utility model;

[0021] Figure 7 This is a communication block diagram of a weight sensor detecting weight in the implementation of the present invention.

[0022] In the figure: 10, elevator cage; 11, side rails; 12, top beam; 13, lifting device; 14, weight sensor; 20, construction elevator body; 21, elevator basket; 22, channel steel; 23, lifting beam; 24, guide assembly; 241, connecting plate; 242, locking ring; 243, bump; 244, mounting groove; 245, roller; 25, electric protective door; 251, protective door a; 252, protective door b; 253, magnetic induction sensor a; 254, magnetic induction sensor b; 26, alarm; 30, control box; 31, PLC controller; 32, button; 40, safety lock assembly; 41, fixing seat; 411, first hinge seat; 412, second hinge seat; 42, electric telescopic rod; 43, hook lock; 431, first connecting hole; 432, second connecting hole. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0025] like Figure 1-3 As shown, the utility model provides a construction elevator with a safety protection device, including an elevator cage 10 and a construction elevator body 20, side rails 11 are arranged on both sides of the interior of the elevator cage 10, a top beam 12 is arranged on the top of the side rail 11, a lifting device 13 is arranged at the bottom of the top beam 12, a steel hinge of the lifting device 13 is connected to the top of the construction elevator body 20, the construction elevator body 20 includes an elevator basket 21, channel steels 22 are arranged on both sides of the elevator basket 21, a hoisting beam 23 is arranged on the top of the channel steel 22, electric protection doors 25 are arranged on the front and rear sides of the elevator basket 21, and the electric protection door 25 can judge the position of the construction elevator body 20 in the elevator cage 10 according to the magnetic induction sensor at the corresponding position, thereby judging whether the electric protection door The opening direction of the door 25 increases the convenience of material transportation. Guide components 24 are arranged on both sides of the lifting beam 23. The guide components 24 are slidably connected with the side rails 11. The stability of the construction elevator body 20 during the lifting process is increased by the guide components 24. An alarm 26 is arranged at the bottom of the lifting beam 23. A control box 30 is arranged on the channel steel 22 on one side. A weight sensor 14 is arranged on the lifting device 13. When the weight sensor 14 detects that the weight of the construction elevator body 20 reaches the threshold, an audible and visual alarm is issued through the alarm 26 to reduce the overload. The control box 30 is electrically connected to the electric protective door 25, the alarm 26 and the weight sensor 14 respectively, and a safety lock component 40 is arranged on the side of the side rail 11 near the top.

[0026] It should be noted that the lifting device 13 of the elevator belongs to the prior art and will not be described in detail in this solution.

[0027] In this embodiment, the control box 30 includes a PLC controller 31 disposed inside, and a button 32 for raising and lowering the construction elevator body 20 is disposed on the control box 30 .

[0028] In this embodiment, the electric protective door 25 includes a protective door a251 installed on the front side of the elevator basket 21 and a protective door b252 installed on the rear side. A magnetic induction sensor a253 is provided on the side near the bottom of the side rail 11, and a magnetic induction sensor b254 is provided on the side near the top.

[0029] Further, such as Figure 6 As shown, the signal output ends of the magnetic induction sensor a253 and the magnetic induction sensor b254 are connected to the signal input end of the control box 30 for communication. The signal output end of the control box 30 is connected to the signal input ends of the protective door a251 and the protective door b252 to build an intelligent control system. Specifically, when the construction elevator body 20 is at the bottom position of the elevator cage 10, the magnetic induction sensor a253 detects the existence of the elevator body and transmits this information to the PLC controller 31 in real time. At this time, the PLC controller 31 will automatically disconnect from the protective door b252 to ensure that the operator can only control the opening of the protective door a251 through the button 32. As the construction elevator body 20 rises, the magnetic induction sensor b254 detects its existence, and the PLC controller 31 will disconnect from the protective door a251 and connect to the protective door b252, so that the button 32 can only control the opening and closing of the protective door b252. This design simplifies the operating difficulty of the staff. There is no need to judge which side of the protective door should be opened. The system will automatically make a choice according to the position of the elevator, thereby improving work efficiency and safety.

[0030] In this embodiment, the protective door is mainly composed of a stepper motor and a steel grating. One side of the steel grating has a rotating shaft, and the output shaft of the stepper motor is connected to the rotating shaft.

[0031] like Figure 5 As shown, the guide assembly 24 includes a connecting plate 241, and the connecting plate 241 is arranged on both sides of the lifting beam 23. A pair of protrusions 243 are arranged at the front and rear edges of the right side of the connecting plate 241, and the side rail 11 is embedded between the protrusions 243. The protrusions 243 are used to keep the construction elevator body 20 and the elevator cage 10 fixed in a horizontal direction to avoid the construction elevator body 20 shaking inside the elevator cage 10 due to other factors, which may cause safety hazards.

[0032] As a preferred embodiment, a placement groove is opened on the front side of the protrusion 243, and a roller 245 is arranged inside the placement groove. The roller 245 is in contact with the side rail 11. In order to avoid the protrusion 243 and the side rail 11 from getting stuck due to roughness, the friction between the two is reduced by the roller 245, thereby improving the stability of lifting and lowering, and improving the stability and smoothness of the construction elevator during the lifting process.

[0033] In another embodiment, through holes are opened at the top and bottom of the channel steel 22, and guide wheels are arranged inside the through holes. The guide wheels are in contact with the side rails 11, and protective plates are arranged on the opposite sides of the two channel steels 22. The stability between the construction elevator body 20 and the side rails 11 is further increased by the guide wheels. At the same time, the protective plates are used to prevent the interior of the construction elevator body 20 from contacting the moving guide wheels and causing safety accidents.

[0034] like Figure 4 As shown, the safety lock assembly 40 includes a fixed seat 41, an electric telescopic rod 42 and a hook lock 43. The fixed seat 41 is provided with a first hinge seat 411 and a second hinge seat 412. The hook lock 43 has a first connecting hole 431 and a second connecting hole 432. The first connecting hole 431 and the second hinge seat 412 are hinged by bolts. The electric telescopic rod 42 is arranged between the first hinge seat 411 and the second connecting hole 432.

[0035] Furthermore, a lock ring 242 is provided on the top of the connecting plate 241 , the electric telescopic rod 42 is electrically connected to the control box 30 , the electric telescopic rod 42 is extended, and the hook lock 43 is engaged with the lock ring 242 .

[0036] Specifically, in the process of the construction elevator body 20 rising to the topmost floor, the magnetic induction sensor b254 detects the position of the elevator body and transmits this signal to the PLC controller 31. After receiving the signal, the PLC controller 31 will control the electric telescopic rod 42 to extend until the hook lock 43 is tightly engaged with the locking ring 242 on the connecting plate 241. This measure enhances the safety of the construction elevator body 20 at high altitudes and effectively prevents safety accidents that may be caused by the breakage of the steel hinge of the lifting device 13. What is important is that when the construction elevator body 20 rises to the topmost floor, the system will ensure that the electric telescopic rod 42 is fully extended and the hook lock 43 is fully buckled with the locking ring 242 before the PLC controller 31 controls the protective door b252 to open, thereby ensuring the safety of the operator.

[0037] like Figure 7 As shown, the signal output end of the weight sensor 14 is communicatively connected with the signal input end of the control box 30, and the signal output end of the control box 30 is communicatively connected with the signal input end of the alarm 26. When the load-bearing capacity of the construction elevator body 20 reaches the threshold, a signal is sent to the PLC controller 31, which then controls the alarm 26 to emit an audible and visual alarm to remind construction personnel of overload.

[0038] Specifically, the working principle of the construction elevator with a safety protection device is as follows: after the construction workers enter the construction elevator body 20 from the first floor, they issue an ascending command through the button 32. After receiving the command, the PLC controller 31 will control the electric protective door 25 to close. At the same time, the weight sensing device will monitor the load-bearing capacity of the construction elevator body 20 in real time to ensure safety. Subsequently, the construction elevator body 20 begins to rise, and the guide assembly 24 slides on the side rail 11 to ensure that the elevator rises steadily. When the elevator rises to the top, the magnetic induction sensor b254 will detect the position of the construction elevator body 20 and transmit the signal to the PLC controller 31. After receiving the signal, the PLC controller 31 controls the electric telescopic rod 42 to extend until the hook lock 43 is tightly fastened with the lock ring 242 to ensure the safety of the elevator at a high altitude. Finally, the PLC controller 31 will control the protective door b252 to open. Through the above structure, the lack of stable protective devices in existing construction elevators is solved, which makes it possible for workers to lose stability and slip due to slight shaking of the hanging basket, or even be disturbed by external factors and cause accidents.

[0039] It should be noted that the specific models and specifications of the weight sensor 14, magnetic induction sensor a253, magnetic induction sensor a254, PLC controller 31 and electric telescopic rod 42 need to be selected and determined according to the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail.

[0040] The power supply and principles of the weight sensor 14, magnetic induction sensor a253, magnetic induction sensor a254, PLC controller 31 and electric telescopic rod 42 are clear to those skilled in the art and will not be described in detail here.

[0041] The utility model is further described above with the help of specific embodiments, but it should be understood that the specific description here should not be construed as a limitation on the essence and scope of the utility model. Various modifications made to the above embodiments by ordinary technicians in this field after reading this specification are all within the scope of protection of the utility model.

Claims

1. A construction elevator with a safety protection device, comprising an elevator cage (10) and a construction elevator body (20), wherein side rails (11) are arranged on both sides of the interior of the elevator cage (10), a top beam (12) is arranged on the top of the side rails (11), a lifting device (13) is arranged on the bottom of the top beam (12), and a steel hinge of the lifting device (13) is connected to the top of the construction elevator body (20), characterized in that: The construction elevator body (20) comprises an elevator basket (21), channel steels (22) are arranged on both sides of the elevator basket (21), a hoisting beam (23) is arranged on the top of the channel steel (22), electric protective doors (25) are arranged on the front and rear sides of the elevator basket (21), guide assemblies (24) are arranged on both sides of the hoisting beam (23), the guide assemblies (24) are slidably connected to the side rails (11), an alarm (26) is arranged at the bottom of the hoisting beam (23), a control box (30) is arranged on one side of the channel steel (22), a weight sensor (14) is arranged on the lifting device (13), the control box (30) is electrically connected to the electric protective door (25), the alarm (26) and the weight sensor (14) respectively, and a safety lock assembly (40) is arranged on the side of the side rail (11) close to the top.

2. A construction elevator with a safety protection device according to claim 1, characterized in that: The electric protective door (25) comprises a protective door a (251) installed at the front side of the elevator basket (21) and a protective door b (252) installed at the rear side. The side rail (11) is provided with a magnetic induction sensor a (253) near the bottom side and a magnetic induction sensor b (254) near the top side.

3. A construction elevator with a safety protection device according to claim 2, characterized in that: The signal output ends of the magnetic induction sensor a (253) and the magnetic induction sensor b (254) are communicatively connected to the signal input ends of the control box (30), and the signal output ends of the control box (30) are communicatively connected to the signal input ends of the protective door a (251) and the protective door b (252).

4. A construction elevator with a safety protection device according to claim 1, characterized in that: The guide assembly (24) comprises a connecting plate (241) which is arranged on both sides of the hoisting beam (23). A pair of protrusions (243) are arranged at the front and rear edges of the right side of the connecting plate (241), and the side rail (11) is embedded between the protrusions (243).

5. A construction elevator with a safety protection device according to claim 4, characterized in that: A placement groove is provided on the front side of the protrusion (243), a roller (245) is arranged inside the placement groove, and the roller (245) is in contact with the side rail (11).

6. A construction elevator with a safety protection device according to claim 4, characterized in that: The safety lock assembly (40) comprises a fixing seat (41), an electric telescopic rod (42) and a hook lock (43); the fixing seat (41) is provided with a first hinge seat (411) and a second hinge seat (412); the hook lock (43) has a first connecting hole (431) and a second connecting hole (432); the first connecting hole (431) and the second hinge seat (412) are hingedly connected by bolts; the electric telescopic rod (42) is provided between the first hinge seat (411) and the second connecting hole (432).

7. A construction elevator with a safety protection device according to claim 6, characterized in that: A lock ring (242) is provided on the top of the connecting plate (241), the electric telescopic rod (42) is electrically connected to the control box (30), and when the electric telescopic rod (42) is extended, the hook lock (43) engages with the lock ring (242).

8. The construction elevator with a safety protection device according to claim 1, characterized in that: The signal output end of the weight sensor (14) is communicatively connected to the signal input end of the control box (30), and the signal output end of the control box (30) is communicatively connected to the signal input end of the alarm (26).

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