Elevator overload stopping structure

Abstract

The utility model discloses an elevator overload stopping structure which comprises a guide rail and an elevator body, a guide block is connected to the guide rail in a sliding mode, inserting blocks are fixedly connected to the two sides of the top of the elevator body, the inserting blocks and the guide block are fixedly connected through installation bolts, and a box body is fixedly connected to the bottom of an inner cavity of the elevator body. Through the arrangement of the weight sensor, the PLC and the alarm, the weight is detected, when the weight is overweight, the alarm gives an alarm, meanwhile, a user presses down the scram button, external driving equipment is closed through the scram button, the elevator body is in a scram state, and the safety of the elevator is guaranteed. And through the arrangement of a motor, a threaded rod, a threaded sleeve, an L-shaped connecting column and a clamping plate, the clamping plate extends into a limiting groove in the surface of the fixing plate, through cooperation of the clamping plate and the fixing plate, the anti-falling purpose is achieved, and the safety performance of the elevator body is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to an elevator overload stopping structure. Background Art

[0002] An elevator is a permanent transportation device that serves certain floors in a building. Its car runs on at least two rows of rigid tracks that are perpendicular to the horizontal plane or have an inclination angle of less than 15° to the plumb line. The most common types of elevators are freight elevators and ordinary elevators. When a freight elevator or elevator is overloaded, it will directly transport people to the designated floor without stopping.

[0003] Existing elevators do not have an overload stop structure. When the elevator is overloaded, the elevator operation is very likely to fail, which greatly reduces the safety performance of the elevator. Therefore, in order to further provide protection for passenger safety, an elevator overload stop structure is proposed. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an elevator overload stop structure, which first presses down a load-bearing plate, drives a movable plate to move downward with the cooperation of a load-bearing column through the load-bearing plate, squeezes the telescopic rod and the first spring through the movable plate, drives the concave frame to move downward, and presses down a weight sensor through the concave frame, and then transmits the measured data to a PLC controller through the weight sensor, and analyzes the data through the PLC controller. When the weight exceeds the set value, the alarm and the motor are started through the PLC controller, and the emergency stop button is pressed at the same time. The external drive device is turned off through the emergency stop button, so that the elevator body stops running, which solves the problem that the existing elevator does not have an overload stop structure. When the elevator is overloaded, the elevator operation is very likely to fail, which greatly reduces the safety performance of the elevator.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a technical solution adopted by an elevator overload stop structure is: comprising a guide rail and an elevator body, the guide rail is slidably connected with a guide block, both sides of the top of the elevator body are fixedly connected with plug-in blocks, the plug-in blocks and the guide blocks are fixedly connected by installing bolts, the bottom of the inner cavity of the elevator body is fixedly connected with a box body, the inner cavity of the box body is movably connected with a movable plate, the bottom of the movable plate is fixedly connected with a concave frame, the bottom of the inner cavity of the box body is fixedly connected with a weight sensor, the top of the movable plate is fixedly connected with bearing columns all around, and the top of the bearing column is fixedly connected with a A bearing plate is fixedly connected to the guide rail, an emergency stop button is provided on the right side of the inner cavity of the elevator body, a PLC controller is provided on the back side of the inner cavity of the elevator body, an alarm is fixedly connected to the inner cavity of the elevator body and above the PLC controller, a shell is fixedly connected to the top of the elevator body, a motor is fixedly installed in the inner cavity of the shell, the output end of the motor is fixedly connected to a threaded rod, a threaded sleeve is threadedly connected to one side of the surface of the threaded rod, an L-shaped connecting column is fixedly connected to the top of the threaded sleeve, a clamping plate is fixedly connected to one end of the L-shaped connecting column, a fixing plate is fixedly connected to the back side of the guide rail, and a limiting groove is provided on the front surface of the fixing plate.

[0008] As a preferred solution, buffer components are fixedly connected around the bottom of the elevator body, and the buffer components include a damper, a second spring and a bottom plate.

[0009] As a preferred solution, a bearing is sleeved on one end of the threaded rod, and one side of the bearing is fixedly connected to one side of the inner cavity of the shell.

[0010] As a preferred solution, the output end of the weight sensor is electrically connected to the input end of the PLC controller via a first wire.

[0011] As a preferred solution, telescopic rods are fixedly connected to both sides of the bottom of the movable plate, and a first spring is wound around the surface of the telescopic rods.

[0012] As a preferred solution, a slideway is fixedly connected to the bottom of the inner cavity of the shell, a slider is fixedly connected to the bottom of the threaded sleeve, and the bottom of the slider is slidably connected to the inside of the slideway.

[0013] As a preferred solution, the right side of the shell is movably connected to a box door via a hinge, and a handle is fixedly connected to one side of the surface of the box door.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides an elevator overload stop structure, which has the following beneficial effects.

[0016] 1. The utility model detects the weight through the arrangement of a weight sensor, a PLC controller and an alarm. When the weight is overweight, an alarm is sounded through the alarm. At the same time, the user presses the emergency stop button to turn off the external driving device through the emergency stop button, so that the elevator body is in an emergency stop state. Through the arrangement of a motor, a threaded rod, a threaded sleeve, an L-shaped connecting column and a card plate, the card plate is extended into the limit groove on the surface of the fixed plate. Through the cooperation of the card plate and the fixed plate, the purpose of preventing falling is achieved, the safety performance of the elevator body is further improved, and the problem that the existing elevator does not have an overload stop structure and the elevator operation is very likely to fail when the elevator is overloaded is solved, which greatly reduces the safety performance of the elevator.

[0017] 2. The utility model reduces the wear of the threaded rod during operation by setting the bearing, greatly improving the service life of the threaded rod. By setting the slideway, the slider is limited to assist the threaded sleeve in moving, greatly improving the stability of the threaded sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a cross-sectional view of the housing of the utility model;

[0020] Figure 3 This is a cross-sectional view of the box body of the utility model.

[0021] In the figure: 1. guide rail; 2. guide block; 3. plug-in block; 4. elevator body; 5. emergency stop button; 6. PLC controller; 7. alarm; 8. housing; 9. motor; 10. threaded rod; 11. threaded sleeve; 12. L-shaped connecting column; 13. clamping plate; 14. fixing plate; 15. box; 16. movable plate; 17. concave frame; 18. weight sensor; 19. telescopic rod; 20. first spring; 21. load-bearing column; 22. load-bearing plate. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0023] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] See also Figure 1-3 A technical solution adopted by an elevator overload stop structure is: comprising a guide rail 1 and an elevator body 4, a guide block 2 is slidably connected to the guide rail 1, plug-in blocks 3 are fixedly connected to both sides of the top of the elevator body 4, the plug-in blocks 3 and the guide blocks 2 are fixedly connected by installing bolts, a box 15 is fixedly connected to the bottom of the inner cavity of the elevator body 4, a movable plate 16 is movably connected to the inner cavity of the box 15, a concave frame 17 is fixedly connected to the bottom of the movable plate 16, a weight sensor 18 is fixedly connected to the bottom of the inner cavity of the box 15, bearing columns 21 are fixedly connected to the four sides of the top of the movable plate 16, and a bearing plate 22 is fixedly connected to the top of the bearing column 21, and an electric An emergency stop button 5 is provided on the right side of the inner cavity of the elevator body 4, a PLC controller 6 is provided on the back of the inner cavity of the elevator body 4, an alarm 7 is fixedly connected to the inner cavity of the elevator body 4 and above the PLC controller 6, a shell 8 is fixedly connected to the top of the elevator body 4, a motor 9 is fixedly installed in the inner cavity of the shell 8, a threaded rod 10 is fixedly connected to the output end of the motor 9, a threaded sleeve 11 is threadedly connected to one side of the surface of the threaded rod 10, an L-shaped connecting column 12 is fixedly connected to the top of the threaded sleeve 11, a clamping plate 13 is fixedly connected to one end of the L-shaped connecting column 12, a fixing plate 14 is fixedly connected to the back of the guide rail 1, and a limiting groove is provided on the front surface of the fixing plate 14.

[0026] The four sides of the bottom of the elevator body 4 are fixedly connected with buffer components, and the buffer components include a damper, a second spring and a bottom plate.

[0027] A bearing is sleeved at one end of the threaded rod 10, and one side of the bearing is fixedly connected to one side of the inner cavity of the housing 8. The setting of the bearing reduces the wear of the threaded rod 10 during operation, and greatly improves the service life of the threaded rod 10.

[0028] The output end of the weight sensor 18 is electrically connected to the input end of the PLC controller 6 via a first wire.

[0029] Both sides of the bottom of the movable plate 16 are fixedly connected with telescopic rods 19 , and the surface of the telescopic rods 19 is wound with a first spring 20 .

[0030] The bottom of the inner cavity of the shell 8 is fixedly connected with a slideway, the bottom of the threaded sleeve 11 is fixedly connected with a slider, and the bottom of the slider is slidably connected to the inside of the slideway. Through the setting of the slideway, the slider is limited to assist the movement of the threaded sleeve 11, which greatly improves the stability of the threaded sleeve 11.

[0031] The right side of the shell 8 is movably connected to a box door via a hinge, and a handle is fixedly connected to one side of the surface of the box door.

[0032] The working principle of the utility model is: the load-bearing plate 22 is pressed down by the weight generated by the object or the person, and the load-bearing plate 22 drives the movable plate 16 to move downward in cooperation with the load-bearing column 21, and the movable plate 16 squeezes the telescopic rod 19 and the first spring 20, and drives the concave frame 17 to move downward, and the concave frame 17 presses down the weight sensor 18, and then the weight sensor 18 detects the quantity, and transmits the measured data to the PLC controller 6, and analyzes it through the PLC controller 6. When the weight exceeds the set value, the PLC controller controls The device 6 starts the alarm 7 and the motor 9, and presses the emergency stop button 5 at the same time. The emergency stop button 5 is used to turn off the external driving device, so that the elevator body 4 is in an emergency stop state, and then the motor 9 drives the threaded rod 10 to rotate, and the threaded sleeve 11 is driven to move to one side by the threaded rod 10, and the L-shaped connecting column 12 is driven to move to one side by the threaded sleeve 11, and the clamping plate 13 is driven to move to one side by the L-shaped connecting column 12 until one side of the clamping plate 13 is inserted into the limiting groove on the surface of the fixing plate 14, so as to avoid the elevator body 4 from falling, thereby greatly improving the safety performance of the elevator body 4.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. An elevator overload stop structure, comprising a guide rail (1) and an elevator body (4), characterized in that: A guide block (2) is slidably connected to the guide rail (1), plug-in blocks (3) are fixedly connected to both sides of the top of the elevator body (4), the plug-in blocks (3) and the guide blocks (2) are fixedly connected by mounting bolts, a box (15) is fixedly connected to the bottom of the inner cavity of the elevator body (4), a movable plate (16) is movably connected to the inner cavity of the box (15), a concave frame (17) is fixedly connected to the bottom of the inner cavity of the movable plate (16), a weight sensor (18) is fixedly connected to the bottom of the inner cavity of the box (15), bearing columns (21) are fixedly connected to the four sides of the top of the movable plate (16), a bearing plate (22) is fixedly connected to the top of the bearing column (21), and an emergency stop button (5) is provided on the right side of the inner cavity of the elevator body (4). A PLC controller (6) is provided on the back of the inner cavity of the elevator body (4); an alarm (7) is fixedly connected to the inner cavity of the elevator body (4) and located above the PLC controller (6); a shell (8) is fixedly connected to the top of the elevator body (4); a motor (9) is fixedly installed in the inner cavity of the shell (8); a threaded rod (10) is fixedly connected to the output end of the motor (9); a threaded sleeve (11) is threadedly connected to one side of the surface of the threaded rod (10); an L-shaped connecting column (12) is fixedly connected to the top of the threaded sleeve (11); a clamping plate (13) is fixedly connected to one end of the L-shaped connecting column (12); a fixing plate (14) is fixedly connected to the back of the guide rail (1); a limiting groove is provided on the front surface of the fixing plate (14).

2. An elevator overload stop structure according to claim 1, characterized in that: The bottom of the elevator body (4) is fixedly connected with a buffer assembly on all four sides, and the buffer assembly includes a damper, a second spring and a bottom plate.

3. The elevator overload stop structure according to claim 1, characterized in that: A bearing is sleeved on one end of the threaded rod (10), and one side of the bearing is fixedly connected to one side of the inner cavity of the housing (8).

4. The elevator overload stop structure according to claim 1, characterized in that: The output end of the weight sensor (18) is electrically connected to the input end of the PLC controller (6) via a first wire.

5. The elevator overload stop structure according to claim 1, characterized in that: Both sides of the bottom of the movable plate (16) are fixedly connected with telescopic rods (19), and a first spring (20) is wound around the surface of the telescopic rod (19).

6. The elevator overload stop structure according to claim 1, characterized in that: The bottom of the inner cavity of the shell (8) is fixedly connected to a slideway, the bottom of the threaded sleeve (11) is fixedly connected to a slider, and the bottom of the slider is slidably connected to the inside of the slideway.

7. The elevator overload stop structure according to claim 1, characterized in that: The right side of the shell (8) is movably connected to a box door via a hinge, and a handle is fixedly connected to one side of the surface of the box door.

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