Elevator counterweight adjustment device

Abstract

The application relates to the elevator technical field and discloses an elevator counterweight adjusting device, which comprises a cage, a plurality of fixing frames are fixedly connected to the surface of the cage, counterweight guide rails are fixedly connected to the surface of the fixing frames, a counterweight frame is slidably connected to the inner wall of the counterweight guide rails, a counterweight block is arranged in the counterweight frame, a counterweight box is arranged on one side of the counterweight block, and a stable guide rail is arranged on one side of the cage. The structure is reasonable, the weight of the people in the cage is detected through a weight detection mechanism of the elevator car, the detected data is transmitted to a control unit, the weight of the required counterweight is calculated through the control unit, distilled water in a liquid storage tank is made to flow into the counterweight box through a water delivery pipe by opening electromagnetic valve two, so that the weight of the counterweight box is increased, when the weight of the cage is reduced, distilled water in the counterweight box is made to flow into a collection tank through a recovery pipe by opening electromagnetic valve three, so that the weight of the counterweight frame is reduced.

Description

Technical Field

[0001] This invention relates to the field of elevator technology, and more specifically to an elevator counterweight adjustment device. Background Technology

[0002] An elevator is a permanent transportation device that serves several specific floors within a building, with its car moving between at least two rigid guide rails perpendicular to the horizontal plane or at an angle of inclination less than 15° to the vertical. There are also escalators, where steps are mounted on a continuous track, commonly known as moving walkways or automatic stairs. These are fixed lifting devices serving designated floors. A vertical elevator has a car that runs between at least two rigid guide rails, perpendicular to the horizontal plane or at an angle of inclination less than 15°. The size and structure of the car facilitate passenger entry and exit or loading and unloading of goods. Conventionally, regardless of its drive method, elevator is considered a general term for vertical transportation tools within a building. Based on speed, elevators can be divided into low-speed elevators (below 4 m / s), fast elevators (4–12 m / s), and high-speed elevators (above 12 m / s). Hydraulic elevators began to appear in the mid-19th century and are still used in low-rise buildings. In 1852, E.G. Otis of the United States developed a safety elevator using wire rope lifting. In the 1880s, the drive mechanism was further improved, such as the use of an electric motor driving a winding drum via a worm gear transmission and the use of counterweights. In the late 19th century, friction wheel transmission was adopted, which greatly increased the lifting height of elevators;

[0003] As the elevator car or counterweight moves up and down in the shaft, it is guided along tracks by a guiding system such as rollers or sliders. These guiding systems accommodate certain movements of the elevator car or counterweight to provide a smooth and comfortable ride for passengers and reduce operating noise.

[0004] In the prior art: Application No. (CN201911393834.2) discloses an elevator car or counterweight, comprising: a frame including an upright structure; a safety brake mounted in the upright structure to allow lateral movement of the safety brake relative to the upright structure; at least a first vertically or obliquely extending cantilever spring; wherein a first end of the first cantilever spring is mounted to the upright structure; and wherein the first cantilever spring is arranged such that when the safety brake moves away from its default position, a point away from the first end provides a biasing force to the safety brake. Because the safety brake is mounted to allow lateral movement relative to the frame, the safety brake substantially floats relative to the car or counterweight. Therefore, in operation, if there is an imbalance in the car, or if the safety brake is not otherwise optimally aligned with the track it abuts against, the safety brake can move to reach an optimal braking position without moving the entire mass of the car or counterweight.

[0005] 2. Application No. (CN200310104379.2) discloses an elevator counterweight (1), including a counterweight frame (2) consisting of a plurality of vertical beams (3a, 3b) and at least three horizontal beams (4a, 4b, 4c) arranged on the same plane, wherein the vertical beams (3a, 3b) penetrate the horizontal beams (4a, 4b, 4c) and form a plurality of grid areas with them, the weight members (6) are arranged and fixed in the grid areas, and the two outermost grid areas arranged above the bottom horizontal beam (4b) have lateral openings, and a counterweight guide shoe (7b) or a lower counterweight guide shoe (7b) and a safety braking device (16) are fixed therein;

[0006] However, in implementing the relevant technology, the following problems were found with the above technical solution: when the number of people in the elevator increases or decreases, the elevator's counterweight mechanism cannot be adjusted in real time according to the weight of the people in the elevator. Therefore, this application proposes an elevator counterweight adjustment device with real-time adjustment of counterweight weight. Summary of the Invention

[0007] This invention proposes an elevator counterweight adjustment device, which solves the problem in related technologies that the elevator counterweight mechanism cannot adjust in real time according to the weight of the people in the elevator when the number of people inside the elevator increases or decreases.

[0008] The technical solution of the present invention is as follows: an elevator counterweight adjustment device includes a car frame, a plurality of fixed frames are fixedly connected to the surface of the car frame, a counterweight guide rail is fixedly connected to the surface of the fixed frame, a counterweight frame is slidably connected to the inner wall of the counterweight guide rail, a counterweight block is provided inside the counterweight frame, and a counterweight box is provided on one side of the counterweight block.

[0009] The car frame is provided with a stabilizing guide rail on one side, and a fixed frame is slidably connected to the inner wall of the stabilizing guide rail. A collection box and a liquid storage box are fixedly connected to the inner wall of the fixed frame respectively.

[0010] A connecting frame is fixedly connected to the outer surface of the car frame. A sliding groove is formed on the surface of the connecting frame. A sliding plate 1 and a sliding plate 2 are slidably connected to the inner wall of the sliding groove. A water supply pipe connected to the counterweight box is provided inside the sliding plate 1. A recovery pipe connected to the counterweight box is provided inside the sliding plate 2. A solenoid valve 2 is provided at one end of the water supply pipe. A solenoid valve 3 is provided at one end of the recovery pipe. One end of the water supply pipe is connected to the liquid storage tank. One end of the recovery pipe is connected to the collection tank.

[0011] The top of the car frame is equipped with a traction machine for connecting to a fixed frame, and a control unit is located below the fixed frame.

[0012] Furthermore, the outer surface of the counterweight frame is provided with a sliding frame for cooperating with the counterweight guide rail, a reinforcing plate is fixedly connected to the bottom of the counterweight frame, and protective plates are provided on both sides of the counterweight frame.

[0013] Furthermore, a delivery pump is connected to the inner wall of the collection tank, and a return pipe is fixedly connected to the output end of the delivery pump. A solenoid valve is provided in the vertical section of the return pipe, and one end of the solenoid valve is connected to the storage tank.

[0014] Furthermore, the surface of the fixed frame is provided with a guide opening, one side of the stabilizing guide rail is fixedly connected to a guide plate, one section of the guide plate is located inside the guide opening, and the inner wall of the guide opening is provided with lubricating grease.

[0015] Furthermore, the bottom of the collection box is provided with a drain port, and the inner wall of the drain port is threaded with a sealing plug two. One side of the storage tank is provided with a liquid inlet, and the inner wall of the liquid inlet is threaded with a sealing plug one. Both the sealing plug one and one side of the connecting frame are provided with sealing gaskets.

[0016] Furthermore, the fixed frame includes an integrally formed traction connection frame, which is used to connect with the traction machine.

[0017] Furthermore, the control unit includes a main control board, a CPU integrated on the surface of the main control board, a storage module electrically connected to the main control board, a data exchange module electrically connected to the main control board, a power supply module electrically connected to the electronic control board, and a USB interface integrated on the surface of the electronic control board.

[0018] Furthermore, a liquid level sensor, which is electrically connected to the control unit, is fixedly connected to the inner wall of the counterweight box.

[0019] Furthermore, the surfaces of the car frame, counterweight guide rail, counterweight frame, stabilizing guide rail, and fixing frame are all coated with protective paint.

[0020] Furthermore, a number of reinforcing bent rods are fixedly connected to the outer surface of the fixed frame, and one end of each reinforcing bent rod is fixedly connected to the bottom of the fixed frame.

[0021] The working principle and beneficial effects of this invention are as follows:

[0022] 1. The present invention has a reasonable structure. The weight detection mechanism built into the elevator car detects the weight of the people in the car and transmits the detected data to the control unit. The control unit calculates the required weight of the counterweight. By opening solenoid valve two, distilled water in the storage tank enters the counterweight box through the water supply pipe, thereby increasing the weight of the counterweight box. If the weight of the car decreases, solenoid valve three is opened to allow the distilled water in the counterweight box to flow into the collection box through the recovery pipe, thereby reducing the weight of the counterweight frame.

[0023] 2. The present invention has a reasonable structure. When the car and the counterweight frame are moving, the traction machine pulls the fixed frame to slide in the stable guide rail. The sliding plate one and the sliding plate two move synchronously in the sliding groove through the recovery pipe and the water supply pipe. When the fixed frame is moving, the guide port will move up and down on the surface of the guide plate to achieve synchronous movement with the counterweight frame. This allows the weight of the counterweight frame to be increased or decreased in real time by adding water and draining water. Attached Figure Description

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0025] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0026] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0027] Figure 3 This is a partial structural diagram of the present invention;

[0028] Figure 4 This is a schematic diagram of the cross-sectional structure of the counterweight frame in this invention;

[0029] Figure 5 for Figure 1 Enlarged structural diagram at point A in the middle;

[0030] Figure 6 for Figure 2 Enlarged structural diagram at point B;

[0031] Figure 7 for Figure 3 Enlarged structural diagram at point C;

[0032] Figure 8 This is a schematic diagram of the electrical connections of the control unit in this invention;

[0033] In the diagram: 1. Car frame; 2. Counterweight guide rail; 3. Counterweight frame; 4. Fixing frame; 5. Traction machine; 6. Stabilizing guide rail; 7. Guide plate; 8. Fixing frame; 9. Collection box; 10. Liquid storage tank; 11. Return pipe; 12. Solenoid valve one; 13. Sealing plug one; 14. Sliding frame; 15. Reinforcing plate; 16. Reinforcing bent rod; 17. Connecting frame; 18. Sliding groove; 19. Sliding plate one; 20. Water supply pipe; 21. Sliding plate two; 22. Recovery pipe; 23. Traction connecting frame; 24. Counterweight block; 25. Counterweight box; 26. Protective plate; 27. Sealing plug two. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figures 1-8 The present invention provides a technical solution for an elevator counterweight adjustment device: including a car frame 1, a plurality of fixed frames 4 are fixedly connected to the surface of the car frame 1, a counterweight guide rail 2 is fixedly connected to the surface of the fixed frame 4, a counterweight frame 3 is slidably connected to the inner wall of the counterweight guide rail 2, a counterweight block 24 is provided inside the counterweight frame 3, and a counterweight box 25 is provided on one side of the counterweight block 24.

[0036] A stabilizing guide rail 6 is provided on one side of the car frame 1. A fixed frame 8 is slidably connected to the inner wall of the stabilizing guide rail 6. A collection box 9 and a liquid storage box 10 are fixedly connected to the inner wall of the fixed frame 8 respectively.

[0037] A connecting frame 17 is fixedly connected to the outer surface of the car frame 1. A sliding groove 18 is opened on the surface of the connecting frame 17. A sliding plate 19 and a sliding plate 21 are slidably connected to the inner wall of the sliding groove 18. A water supply pipe 20 connected to the counterweight box 25 is provided inside the sliding plate 19. A recovery pipe 22 connected to the counterweight box 25 is provided inside the sliding plate 21. A solenoid valve 2 is provided at one end of the water supply pipe 20. A solenoid valve 3 is provided at one end of the recovery pipe 22. One end of the water supply pipe 20 is connected to the liquid storage tank 10. One end of the recovery pipe 22 is connected to the collection box 9.

[0038] The top of the car frame 1 is provided with a traction machine 5 for connecting the fixed frame 8, and the bottom of the fixed frame 8 is provided with a control unit.

[0039] When in use, the elevator car's built-in weight detection mechanism detects the weight of the passengers inside the car and transmits the detected data to the control unit. The control unit calculates the required counterweight weight (the calculation method is existing technology and will not be explained here). By opening solenoid valve two, distilled water in the storage tank 10 flows into the counterweight box 25 through the water supply pipe 20, thereby increasing the weight of the counterweight box 25. If the weight of the car decreases, solenoid valve three is opened, allowing the distilled water in the counterweight box 25 to flow into the collection box 9 through the recovery pipe 22, reducing the weight of the counterweight frame 3. When the car and the counterweight frame 3 move, the traction machine 5 pulls the fixed frame 8 to slide within the stabilizing guide rail 6, and the recovery pipe 22 and the water supply pipe 20 cause the sliding plate 19 and the sliding plate 21 to move synchronously within the sliding groove 18, achieving synchronous movement with the counterweight frame 3, thereby increasing or decreasing the weight of the counterweight frame 3 in real time.

[0040] Preferably, the outer surface of the counterweight frame 3 is provided with a sliding bracket 14 for cooperating with the counterweight guide rail 2, a reinforcing plate 15 is fixedly connected to the bottom of the counterweight frame 3, and protective plates 26 are provided on both sides of the counterweight frame 3. A delivery pump is connected to the inner wall of the collection box 9, and a return pipe 11 is fixedly connected to the output end of the delivery pump. A solenoid valve 12 is provided in the vertical section of the return pipe 11, and one end of the solenoid valve 12 is connected to the liquid storage tank 10. A guide opening is provided on the surface of the fixed frame 8, and a guide rail 6 is fixedly connected to one side. The guide plate 7 has one section inside the guide port, and the inner wall of the guide port is provided with lubricating grease. The bottom of the collection box 9 has a drain port, and the inner wall of the drain port is threaded with a sealing plug 27. One side of the storage tank 10 has an inlet port, and the inner wall of the inlet port is threaded with a sealing plug 13. Both the sealing plug 13 and the connecting frame 17 have sealing gaskets on one side. The fixed frame 8 includes an integrally formed traction connecting frame 23, which is used to connect with the traction machine 5.

[0041] Specifically, when the fixed frame 8 moves, the guide port moves up and down on the surface of the guide plate 7. By removing the sealing plug 13, distilled water is added to the storage tank 10 through the liquid inlet. The distilled water flows into the collection tank 9. The solenoid valve 12 is opened, and the distilled water flows into the storage tank 10 through the return pipe 11 via the delivery pump. When it is necessary to drain the distilled water in the collection tank 9, the sealing plug 27 is removed, and the distilled water is drained through the drain port.

[0042] Preferably, the control unit includes a main control board, a CPU integrated on the surface of the main control board, a storage module electrically connected to the main control board, a data exchange module electrically connected to the main control board, a power supply module electrically connected to the control board, and a USB interface integrated on the surface of the control board. A liquid level sensor electrically connected to the control unit is fixedly connected to the inner wall of the counterweight box 25.

[0043] Specifically, the distilled water in the counterweight box 25 is detected by a liquid level sensor, and the weight of the distilled water in the counterweight box 25 is calculated by the CPU to make it compatible with the car. If it is not compatible, water is added or drained from the counterweight box 25 according to the above scheme. The data exchange module is connected to the elevator's main control system.

[0044] Preferably, the surfaces of the car frame 1, counterweight guide rail 2, counterweight frame 3, stabilizing guide rail 6, and fixed frame 8 are all coated with protective paint, and the surface of the protective paint is coated with a corrosion-resistant layer. Specifically, the protective paint is a zinc-rich primer, and the corrosion-resistant layer is a nickel-based alloy composite coating, which can prevent the components from corroding and rusting due to long-term exposure to moisture. Several reinforcing bent rods 16 are fixedly connected to the outer surface of the fixed frame 8, and one end of the reinforcing bent rod 16 is fixedly connected to the bottom of the fixed frame 8.

[0045] Working principle and usage process of this invention:

[0046] S1. By removing the sealing plug 13, distilled water is added to the storage tank 10 through the liquid inlet. When people use the elevator, the weight of the people in the car is detected by the weight detection mechanism built into the elevator car, and the detected data is transmitted to the control unit. The control unit calculates the weight of the required counterweight (the calculation method is existing technology and will not be explained here). By opening the solenoid valve 2, the distilled water in the storage tank 10 enters the counterweight box 25 through the water supply pipe 20, thereby increasing the weight of the counterweight box 25. If the weight of the car decreases, the distilled water in the counterweight box 25 flows into the collection box 9 through the recovery pipe 22 by opening the solenoid valve 3, thereby reducing the weight of the counterweight frame 3.

[0047] S2. When the car and counterweight frame 3 are moving, the traction machine 5 pulls the fixed frame 8 to slide in the stable guide rail 6, and the sliding plate 19 and sliding plate 21 move synchronously in the sliding groove 18 through the recovery pipe 22 and the water supply pipe 20. When the fixed frame 8 is moving, the guide port will move up and down on the surface of the guide plate 7 to achieve synchronous movement with the counterweight frame 3, thereby increasing or decreasing the weight of the counterweight frame 3 in real time by adding and draining water.

[0048] S3. When the distilled water flows into the collection tank 9, the solenoid valve 12 is opened. At this time, the distilled water is pumped through the return pipe 11 into the storage tank 10. When it is necessary to discharge the distilled water in the collection tank 9, the sealing plug 27 is removed to discharge the distilled water through the drain port.

[0049] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An elevator counterweight adjustment device, comprising a car frame (1), characterized in that, The surface of the car frame (1) is fixedly connected to several fixed frames (4), the surface of the fixed frame (4) is fixedly connected to a counterweight guide rail (2), the inner wall of the counterweight guide rail (2) is slidably connected to a counterweight frame (3), the inside of the counterweight frame (3) is provided with a counterweight block (24), and one side of the counterweight block (24) is provided with a counterweight box (25). The car frame (1) is provided with a stabilizing guide rail (6) on one side. A fixed frame (8) is slidably connected to the inner wall of the stabilizing guide rail (6). A collection box (9) and a liquid storage box (10) are fixedly connected to the inner wall of the fixed frame (8). A connecting frame (17) is fixedly connected to the outer surface of the car frame (1). A sliding groove (18) is opened on the surface of the connecting frame (17). A sliding plate one (19) and a sliding plate two (21) are slidably connected to the inner wall of the sliding groove (18). A water supply pipe (20) connected to the counterweight box (25) is provided inside the sliding plate one (19). A recovery pipe (22) connected to the counterweight box (25) is provided inside the sliding plate two (21). A solenoid valve two is provided at one end of the water supply pipe (20). A solenoid valve three is provided at one end of the recovery pipe (22). One end of the water supply pipe (20) is connected to the liquid storage tank (10). One end of the recovery pipe (22) is connected to the collection box (9). The top of the car frame (1) is provided with a traction machine (5) for connecting the fixed frame (8), and the bottom of the fixed frame (8) is provided with a control unit.

2. The elevator counterweight adjustment device according to claim 1, characterized in that, The outer surface of the counterweight frame (3) is provided with a sliding frame (14) for cooperating with the counterweight guide rail (2), and a reinforcing plate (15) is fixedly connected to the bottom of the counterweight frame (3). Both sides of the counterweight frame (3) are provided with protective plates (26).

3. The elevator counterweight adjustment device according to claim 1, characterized in that, The inner wall of the collection box (9) is connected to a delivery pump, and the output end of the delivery pump is fixedly connected to a return pipe (11). The vertical section of the return pipe (11) is equipped with a solenoid valve (12), and one end of the solenoid valve (12) is connected to the liquid storage tank (10).

4. The elevator counterweight adjustment device according to claim 1, characterized in that, The fixed frame (8) has a guide opening on its surface. A guide plate (7) is fixedly connected to one side of the stable guide rail (6). One section of the guide plate (7) is located inside the guide opening. The inner wall of the guide opening is provided with lubricating grease.

5. The elevator counterweight adjustment device according to claim 1, characterized in that, The bottom of the collection box (9) is provided with a drain port, and the inner wall of the drain port is threaded with a sealing plug two (27). One side of the storage tank (10) is provided with a liquid inlet, and the inner wall of the liquid inlet is threaded with a sealing plug one (13). Both the sealing plug one (13) and the connecting frame (17) are provided with sealing gaskets.

6. The elevator counterweight adjustment device according to claim 1, characterized in that, The fixed frame (8) includes an integrally formed traction connection frame (23), which is used to connect with the traction machine (5).

7. The elevator counterweight adjustment device according to claim 1, characterized in that, The control unit includes a main control board, a CPU integrated on the surface of the main control board, a storage module electrically connected to the main control board, a data exchange module electrically connected to the main control board, a power supply module electrically connected to the main control board, and a USB interface integrated on the surface of the main control board.

8. The elevator counterweight adjustment device according to claim 1, characterized in that, The inner wall of the counterweight box (25) is fixedly connected to a liquid level sensor that is electrically connected to the control unit.

9. The elevator counterweight adjustment device according to claim 1, characterized in that, The surfaces of the car frame (1), counterweight guide rail (2), counterweight frame (3), stabilizing guide rail (6) and fixing frame (8) are all coated with protective paint.

10. The elevator counterweight adjustment device according to claim 1, characterized in that, The outer surface of the fixed frame (8) is fixedly connected with several reinforcing bent rods (16), one end of which is fixedly connected to the bottom of the fixed frame (8).

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