Elevator safe operation lifting mechanism and using method thereof

Abstract

The invention discloses an elevator safe operation lifting mechanism and a using method thereof, and belongs to the technical field of elevator lifting mechanisms. Guide rails are symmetrically and fixedly mounted in the elevator shaft; the two ends of the traction rope are fixedly connected with the lift car and the counterweight correspondingly. A traction mechanism used for driving a traction rope is fixedly installed on the upper side of the machine room. A counterweight mechanism is mounted in the elevator shaft; the counterweight mechanism comprises a first circulation module, a second circulation module, braking modules and a counterweight block, the first circulation module and the second circulation module are symmetrically installed on the two sides of the elevator shaft, and the first circulation module and the second circulation module are each provided with one braking module; balancing weights are fixedly mounted on the first circulating module and the second circulating module respectively; first connecting mechanisms are symmetrically installed on the lift car, and second connecting mechanisms are symmetrically installed on the counterweight. By means of the mode, the gravity difference value of the two ends of the traction rope is kept in a small state, and the power needed by operation of the traction mechanism is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of elevator lifting mechanisms, and in particular to an elevator safe operation lifting mechanism and a use method thereof. Background Art

[0002] The elevators currently in use are divided into hydraulic elevators and traction elevators according to the different driving methods. Among them, the traction elevator, which uses a traction machine and wire rope as the lifting mechanism, has a smooth and convenient lifting and lowering, which ensures the comfort of passengers while allowing them to reach the destination more conveniently.

[0003] For example, Chinese patent CN112694000B discloses a traction elevator, which includes a traction machine, a car, a counterweight and a wire rope. The traction machine drives the car to move through the wire rope. During this process, the counterweight balances the gravity difference on both sides of the wire rope to reduce the power required by the traction machine.

[0004] However, the counterweight of a traction elevator is usually designed to be the weight of the elevator car plus 0.5 times the elevator load weight. Therefore, when the elevator is unloaded or fully loaded, the gravity difference on both sides of the traction machine is the largest, and the elevator still requires a large power when running.

[0005] Based on this, the present invention designs an elevator safe operation lifting mechanism and a use method thereof to solve the above problems. Summary of the invention

[0006] In view of the above-mentioned shortcomings of the prior art, the present invention provides an elevator safe operation lifting mechanism and a method of using the same.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] An elevator safe operation lifting mechanism, comprising a machine room, an elevator shaft, a traction mechanism, a car, a counterweight, a traction rope, a counterweight mechanism, a first connection mechanism and a second connection mechanism;

[0009] Guide rails for guiding the car and the counterweight are symmetrically fixedly installed in the elevator shaft; rollers for rolling contact with the guide rails are respectively installed on the car and the counterweight; both ends of the traction rope are respectively fixedly connected to the car and the counterweight; a traction mechanism for driving the traction rope is fixedly installed on the upper side of the machine room;

[0010] A counterweight mechanism is installed in the elevator shaft; the counterweight mechanism includes a first circulation module, a second circulation module, a brake module and a counterweight block, the first circulation module and the second circulation module are symmetrically installed on both sides of the elevator shaft, a group of brake modules are installed on the first circulation module and the second circulation module respectively, and the first circulation module and the second circulation module are respectively fixedly installed with counterweight blocks;

[0011] The car is symmetrically provided with first connecting mechanisms respectively used for connecting with the first circulation module and the second circulation module, and the counterweight is symmetrically provided with second connecting mechanisms respectively used for connecting with the first circulation module and the second circulation module; the first connecting mechanism and the second connecting mechanism are staggered.

[0012] Furthermore, the first circulation module includes a fixed seat, an upper guide wheel, a lower guide wheel, a counterweight steel wire rope and a sliding rod. Fixed seats are fixedly installed on the upper and lower sides of the elevator shaft. The upper guide wheel is rotatably installed on the upper fixed seat, and the lower guide wheel is rotatably installed on the lower fixed seat; the counterweight steel wire rope passes around the upper side of the upper guide wheel and the lower side of the lower guide wheel; the upper end of the counterweight steel wire rope is fixedly connected to the counterweight block, and the lower end of the counterweight steel wire rope is fixedly connected to the lower end of the counterweight block; a plurality of sliding rods are fixedly installed in the elevator shaft, and the counterweight block is limitedly slidably connected to the sliding rods.

[0013] Furthermore, the brake module includes a brake wheel, a brake arm, a brake block, an extension rod, a brake rod, a brake spring, a first electromagnet, a first magnetic block and a mounting frame, the brake wheel is fixedly connected to the upper guide wheel, and brake arms are symmetrically arranged on both sides of the brake wheel; the lower end of the brake arm is rotatably mounted on the fixed seat, the middle part of the brake arm is fixedly mounted with a brake block, and the upper end of the brake arm is fixedly connected to the lower end of the extension rod; the two ends of the brake rod respectively pass through the middle parts of the two extension rods; the two ends of the brake rod are respectively sleeved with brake springs; one end of the brake spring is fixedly connected to the brake rod, and the other end of the brake spring is fixedly connected to the extension rod; the upper end of the extension rod is fixedly mounted with the first magnetic block; the mounting frame is fixedly mounted on the fixed seat, and the upper side of the mounting frame is fixedly mounted with a first electromagnet for adsorbing the first magnetic block.

[0014] Furthermore, the first connecting mechanism includes an installation module and a clamping module. Two groups of installation modules are fixedly installed on the car, one group of installation modules is aligned with the first circulation module, and the other group of installation modules is aligned with the second circulation module; multiple groups of clamping modules for clamping counterweight wire ropes are evenly installed at equal intervals on the installation modules.

[0015] Furthermore, the installation module includes a fixed arm, a support frame and a guide rod. The fixed arm is fixedly installed on the rear side of the car, the fixed arm is fixedly connected to one side of the support frame, and multiple groups of guide rods are evenly fixedly installed at equal intervals on the other side of the support frame.

[0016] Furthermore, the clamping module includes a clamping module and a driving module. The clamping module is installed on the guide rod, and the driving module for driving the clamping module is installed on the fixed arm.

[0017] Furthermore, the clamping module includes a slider, a clamping plate and a connecting rod. The slider is symmetrically and slidingly installed on the guide rod, and the clamping plate is fixedly installed on the slider; the slider is rotatably connected to one end of the connecting rod.

[0018] Furthermore, the driving module includes a synchronization block, a limit rod, a stop block, a second electromagnet, a second magnetic block and a return spring. The other ends of the two connecting rods are rotatably mounted on the same synchronization block. One end of the limit rod is fixedly connected to the synchronization block, and the other end of the limit rod is fixedly mounted with a stop block after passing through the fixed arm; the limit rod is slidingly connected to the fixed arm; the second electromagnet is fixedly mounted on the fixed arm, and the second magnetic block is fixedly mounted on the synchronization block; a return spring is provided on the outer sleeve of the limit rod; one end of the return spring is fixedly connected to the stop block, and the other end of the return spring is fixedly connected to the second magnetic block.

[0019] Furthermore, the structure of the second connecting mechanism is the same as that of the first connecting mechanism; when the second connecting mechanism is in a clamping state, the two pairs of clamping plates of the second connecting mechanism are located on the inner sides of the two pairs of clamping plates of the first connecting mechanism; when the second connecting mechanism is in a non-clamping state, the two pairs of clamping plates of the second connecting mechanism are located on the inner sides of the two pairs of clamping plates of the first connecting mechanism.

[0020] In order to better achieve the purpose of the present invention, the present invention also provides a method for using a lifting mechanism for safe operation of an elevator, comprising the following steps:

[0021] Step 1: In the initial state, the counterweight block on the first circulation module is at the lowest point, and the counterweight block on the second circulation module is at the highest point; after the car stops at a certain floor, the user enters the car and selects the floor to be reached; the elevator control system is based on the current load situation and the running direction of the car; when the elevator load is less than 15% of the elevator's full load and the elevator needs to rise, execute step 2; when the elevator load is less than 15% of the elevator's full load and the elevator descends, execute step 3; when the elevator load is greater than 85% of the elevator's full load and the elevator rises, execute step 4; when the elevator load is greater than 85% of the elevator's full load and the elevator descends, execute step 5;

[0022] Step 2: Determine the size of the lifting distance required by the user and the lifting distance available for the counterweight on the first circulation module. If the lifting distance required by the user is greater than the lifting distance available for the counterweight on the first circulation module, the second connection mechanism is not activated; otherwise, the counterweight is connected to the first circulation module through the second connection mechanism, and the brake module releases the lock on the first circulation module; the traction mechanism drives the car to rise through the traction rope, and the counterweight is lowered, and the counterweight drives the counterweight on the first circulation module to rise through the second connection mechanism; in this process, the gravity of the counterweight is balanced by the counterweight on one side of the first circulation module and the car;

[0023] Step 3: Determine the size of the required descent distance of the user and the available descent distance of the counterweight on the second circulation module. If the required descent distance of the user is greater than the available descent distance of the counterweight on the second circulation module, the second connection mechanism is not activated; otherwise, the counterweight is connected to the second circulation module through the second connection mechanism, and the brake module releases the lock on the second circulation module; the traction mechanism drives the car to descend through the traction rope, and the counterweight rises, and the counterweight drives the counterweight on the second circulation module to descend through the second connection mechanism; in this process, the car and the counterweight on the second circulation module jointly balance the gravity of the counterweight;

[0024] Step 4: Determine the size of the ascending distance required by the user and the available descending distance of the counterweight on the second circulation module. If the ascending distance required by the user is greater than the available descending distance of the counterweight on the second circulation module, the first connecting mechanism is not activated; otherwise, the car is connected to the second circulation module through the first connecting mechanism, and the brake module releases the lock on the second circulation module; the traction mechanism drives the car to rise and the counterweight to descend through the traction rope, and the car drives the counterweight on the second circulation module to descend through the first connecting mechanism; in this process, the gravity of the car is balanced by the counterweight on the second circulation module and the counterweight;

[0025] Step 5: Determine the size of the lifting distance required by the user and the lifting distance available for the counterweight on the first circulation module; if the lifting distance required by the user is greater than the lifting distance available for the counterweight on the first circulation module, the first connecting mechanism is not activated; otherwise, the car is connected to the first circulation module through the first connecting mechanism, the brake module releases the lock on the first circulation module, the traction mechanism drives the car to descend through the traction rope, the counterweight rises, and the car drives the counterweight on the first circulation module to rise through the first connecting mechanism; in this process, the weight of the car is balanced by the counterweight on the first circulation module and the counterweight;

[0026] Step 6: After the elevator runs to the designated floor, the brake module locks the first circulation module and the second circulation module, and then operates the second connecting mechanism to separate the counterweight from the first circulation module or the second circulation module, and operates the first connecting mechanism to separate the car from the first circulation module or the second circulation module.

[0027] Compared with the prior art, the present invention has the following beneficial effects: 1. The elevator control system controls the traction mechanism according to the operation of the user, and the traction mechanism controls the upward or downward movement of the car through the traction rope, and reduces the power and torque required by the traction mechanism during the operation of the elevator through the counterweight; at the same time, the number of loads in the car is judged by the elevator control system; when the elevator load is less than 15% of the full load of the elevator or the elevator load is greater than 85% of the full load of the elevator, the gravity difference on both sides of the traction rope is large, and the power required for the operation of the traction mechanism is large; therefore, when the elevator load is less than 15% of the full load of the elevator, if the elevator needs to rise, and the rising distance required by the user is less than the rising distance available for the counterweight block on the first circulation module, the counterweight is connected to the first circulation module through the second connecting mechanism, and the counterweight block on one side of the first circulation module and the car are used to balance the gravity of the counterweight, so that the gravity difference on both sides of the traction rope is reduced; when the elevator load is less than 15% of the full load of the elevator, if the elevator needs to descend, and the descending distance required by the user is less than the descending distance available for the counterweight block on the second ... The second connecting mechanism connects the counterweight to the second circulation module, and the car and the counterweight on the second circulation module jointly balance the gravity of the counterweight; when the elevator load is greater than 85% of the full load of the elevator, if the elevator needs to rise, and the rising distance required by the user is less than the available falling distance of the counterweight on the second circulation module, the car is connected to the second circulation module through the first connecting mechanism, and the counterweight on the second circulation module and the counterweight jointly balance the gravity of the car; when the elevator load is greater than 85% of the full load of the elevator, if the elevator needs to descend, and the rising distance required by the user is less than the available rising distance of the counterweight on the first circulation module, the car is connected to the first circulation module through the first connecting mechanism, and the counterweight on the first circulation module and the counterweight jointly balance the gravity of the car; reduce the gravity difference on both sides of the traction rope; on the premise of ensuring the safe operation of the elevator, through the cooperation of the first connecting mechanism, the second connecting mechanism and the first circulation module and the second circulation module, the gravity difference at both ends of the traction rope is always kept at a small state, reducing the power required for the operation of the traction mechanism and effectively reducing energy consumption.

[0028] 2. When the elevator load is between 15% and 82% of the full load of the elevator, the gravity difference on both sides of the traction rope is small; if the counterweight on the first circulation module is at the bottom and the counterweight on the second circulation module is at the highest point, the first connecting mechanism and the second connecting mechanism are not activated; if the counterweight on the first circulation module is not at the lowest point or the counterweight on the second circulation module is not at the highest point, the first connecting mechanism and the second connecting mechanism are selectively activated according to the elevator load and the expected arrival floor, so that the counterweight on the first circulation module moves downward to the lowest point and the counterweight on the second circulation module moves upward to the highest point; During the operation of the elevator, while reducing the gravity difference on both sides of the traction rope, the counterweights on the first circulation module and the second circulation module are moved in the direction of the initial state; when the elevator is not in use, the elevator can be started automatically, and it is in an unloaded state at this time, so that the counterweights on the first circulation module and the second circulation module are moved in the direction opposite to the initial state; so that the counterweights on the first circulation module and the second circulation module are one at the highest point and the other at the lowest point; and when used in the next round, the use order of the first circulation module and the second circulation module is swapped (that is, the counterweight at the highest point is always regarded as the second circulation module, and the counterweight at the lowest point is always regarded as the first circulation module). BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 A three-dimensional diagram of a safe operation lifting mechanism of an elevator according to the present invention;

[0031] Figure 2 It is a front view of a safe operation lifting mechanism of an elevator of the present invention;

[0032] Figure 3 This is a three-dimensional diagram of the present invention after removing the elevator shaft;

[0033] Figure 4 This is a three-dimensional diagram of the present invention after removing the elevator shaft, machine room and guide rails;

[0034] Figure 5 for Figure 4 The enlarged view of point A in the middle;

[0035] Figure 6 for Figure 2 The enlarged view of point D in the middle;

[0036] Figure 7for Figure 3 The enlarged view of point B in the middle;

[0037] Figure 8 for Figure 4 Enlarged view of point C in the middle;

[0038] Fig. 9 is a schematic diagram of a fixing seat and its connection structure;

[0039] Fig.10 for Figure 3 Enlarged view of point E in the middle;

[0040] Fig.11 Schematic diagram of the support frame and its connection structure.

[0041] The numbers in the figure represent:

[0042] 11. Machine room; 12. Elevator shaft; 121. Guide rail; 2. Traction mechanism; 21. Motor; 22. Speed ​​reducer; 23. Brake; 24. Traction wheel; 25. Guide wheel; 3. Car; 4. Counterweight; 5. Traction rope; 6. Counterweight mechanism; 61. First circulation module; 611. Fixed seat; 612. Upper guide wheel; 613. Lower guide wheel; 614. Counterweight wire rope; 615. Sliding rod; 62. Second circulation module; 63. Braking module; 631. Braking wheel; 632. Braking arm; 633. Braking block; 634. Extension rod ; 635, brake rod; 636, brake spring; 637, first electromagnet; 638, first magnetic block; 639, mounting frame; 64, counterweight; 8, first connecting mechanism; 81, mounting module; 811, fixed arm; 812, support frame; 813, guide rod; 82, clamping module; 821, slider; 822, clamping plate; 823, connecting rod; 824, synchronization block; 825, limit rod; 826, block; 827, second electromagnet; 828, second magnetic block; 829, reset spring; 9, second connecting mechanism. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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.

[0044] The terms “left”, “right”, “front”, “back”, “up” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0045] Embodiment 1: In some embodiments, please refer to the drawings of the specification Figure 1-Figure 6 , an elevator safe operation lifting mechanism and a method of using the same, comprising a machine room 11, an elevator shaft 12, a traction mechanism 2, a car 3, a counterweight 4, a traction rope 5, a counterweight mechanism 6, a first connection mechanism 8 and a second connection mechanism 9;

[0046] The elevator shaft 12 is symmetrically fixed with guide rails 121 for guiding the car 3 and the counterweight 4; the car 3 and the counterweight 4 are respectively installed with rollers for rolling contact with the guide rails 121; the two ends of the traction rope 5 are respectively fixedly connected to the car 3 and the counterweight 4; the traction mechanism 2 for driving the traction rope 5 is fixedly installed on the upper side of the machine room 11;

[0047] A counterweight mechanism 6 is installed in the elevator shaft 12; the counterweight mechanism 6 includes a first circulation module 61, a second circulation module 62, a brake module 63 and a counterweight block 64, the first circulation module 61 and the second circulation module 62 are symmetrically installed on both sides of the elevator shaft 12, a group of brake modules 63 are installed on the first circulation module 61 and the second circulation module 62, respectively, and the first circulation module 61 and the second circulation module 62 are respectively fixedly installed with a counterweight block 64;

[0048] The car 3 is symmetrically provided with a first connection mechanism 8 for connecting with the first circulation module 61 and the second circulation module 62 respectively, and the counterweight 4 is symmetrically provided with a second connection mechanism 9 for connecting with the first circulation module 61 and the second circulation module 62 respectively; the first connection mechanism 8 and the second connection mechanism 9 are staggered.

[0049] A floating carrier is provided at the bottom of the car 3; a sensor for detecting the weight of the floating carrier is provided between the floating carrier and the bottom of the car 3; the sensor may be a pressure sensor; the elevator controller is installed in the machine room 11;

[0050] The second circulation module 62 has the same structure as the first circulation module 61 ; in the initial state, the counterweight block 64 on the first circulation module 61 is located at the lowest point, and the counterweight block 64 on the second circulation module 62 is located at the highest point.

[0051] In this embodiment, when the elevator is in safe operation and the lifting mechanism is in normal use, the elevator control system controls the traction mechanism 2 according to the operation of the user, and the traction mechanism 2 controls the car 3 to go up or down through the traction rope 5, and reduces the power and torque required by the traction mechanism 2 during the operation of the elevator through the counterweight 4; in this process, the car 3 and the counterweight 4 are guided by the guide rail 121 in the elevator shaft 12, so that the car 3 and the counterweight 4 keep moving vertically; when in use, the elevator control system determines the load quantity in the car 3;

[0052] When the elevator load is less than 15% of the elevator's full load, the weight of one side of the counterweight 4 is greater than that of the car 3, the gravity difference on both sides of the traction rope 5 is large, and the power required for the operation of the traction mechanism 2 is large; when the elevator load is greater than 85% of the elevator's full load, the weight of one side of the car 3 is greater than that of the counterweight 4, the gravity difference on both sides of the traction rope 5 is large, and the power required for the operation of the traction mechanism 2 is large;

[0053] Therefore, when the elevator load is less than 15% of the elevator's full load, if the elevator needs to rise, the lifting distance required by the user and the available lifting distance of the counterweight block 64 on the first circulation module 61 are judged. If the lifting distance required by the user is greater than the available lifting distance of the counterweight block 64 on the first circulation module 61, the second connecting mechanism 9 is not activated; otherwise, the counterweight 4 is connected to the first circulation module 61 through the second connecting mechanism 9, and the brake module 63 releases the lock on the first circulation module 61; the traction mechanism 2 drives the car 3 to rise through the traction rope 5, and the counterweight 4 descends, and the counterweight 4 drives the counterweight block 64 on the first circulation module 61 to rise through the second connecting mechanism 9; in this process, the gravity of the counterweight 4 is balanced by the counterweight block 64 on one side of the first circulation module 61 and the car 3, so that the gravity difference on both sides of the traction rope 5 is reduced;

[0054] When the elevator load is less than 15% of the elevator full load, if the elevator needs to descend, the required descent distance of the user and the available descent distance of the counterweight block 64 on the second circulation module 62 are judged. If the required descent distance of the user is greater than the available descent distance of the counterweight block 64 on the second circulation module 62, the second connecting mechanism 9 is not activated; otherwise, the counterweight 4 is connected to the second circulation module 62 through the second connecting mechanism 9, and the brake module 63 releases the lock on the second circulation module 62; the traction mechanism 2 drives the car 3 to descend through the traction rope 5, and the counterweight 4 rises, and the counterweight 4 drives the counterweight block 64 on the second circulation module 62 to descend through the second connecting mechanism 9; in this process, the car 3 and the counterweight block 64 on the second circulation module 62 jointly balance the gravity of the counterweight 4, so that the gravity difference on both sides of the traction rope 5 is reduced;

[0055] When the elevator load is greater than 85% of the elevator full load, if the elevator needs to rise, the size of the rising distance required by the user and the available descending distance of the counterweight block 64 on the second circulation module 62 is judged. If the rising distance required by the user is greater than the available descending distance of the counterweight block 64 on the second circulation module 62, the first connecting mechanism 8 is not activated; otherwise, the car 3 is connected to the second circulation module 62 through the first connecting mechanism 8, and the brake module 63 releases the lock on the second circulation module 62; the traction mechanism 2 drives the car 3 to rise and the counterweight 4 to descend through the traction rope 5, and the car 3 drives the counterweight block 64 on the second circulation module 62 to descend through the first connecting mechanism 8; in this process, the gravity of the car 3 is balanced by the counterweight block 64 on the second circulation module 62 and the counterweight 4, so that the gravity difference on both sides of the traction rope 5 is reduced;

[0056] When the elevator load is greater than 85% of the elevator full load, if the elevator needs to descend, the size of the required ascending distance of the user and the available ascending distance of the counterweight block 64 on the first circulation module 61 is determined; if the required ascending distance of the user is greater than the available ascending distance of the counterweight block 64 on the first circulation module 61, the first connecting mechanism 8 is not activated; otherwise, the car 3 is connected to the first circulation module 61 through the first connecting mechanism 8, the brake module 63 releases the lock on the first circulation module 61, the traction mechanism 2 drives the car 3 to descend through the traction rope 5, the counterweight 4 rises, and the car 3 drives the counterweight block 64 on the first circulation module 61 to rise through the first connecting mechanism 8; in this process, the counterweight block 64 on the first circulation module 61 and the counterweight 4 jointly balance the gravity of the car 3, so that the gravity difference on both sides of the traction rope 5 is reduced;

[0057] When the elevator load is between 15% and 85% of the full load of the elevator, the gravity difference on both sides of the traction rope 5 is small; if the counterweight 64 on the first circulation module 61 is at the bottom and the counterweight 64 on the second circulation module 62 is at the highest point, the first connecting mechanism 8 and the second connecting mechanism 9 are not enabled at this time; if the counterweight 64 on the first circulation module 61 is not at the lowest point or the counterweight 64 on the second circulation module 62 is not at the highest point, the first connecting mechanism 8 and the second connecting mechanism 9 are selectively enabled according to the elevator load and the expected arrival floor, so that the counterweight 64 on the first circulation module 61 moves downward to the lowest point and the counterweight 64 on the second circulation module 62 moves upward to the highest point; thereby, during the operation of the elevator, the gravity difference on both sides of the traction rope 5 is reduced, and the counterweight 64 on the first circulation module 61 and the second circulation module 62 move toward the direction of the initial state;

[0058] After the elevator runs to the designated floor, the brake module 63 locks the first circulation module 61 and the second circulation module 62, and then operates the second connection mechanism 9 to separate the counterweight 4 from the first circulation module 61 or the second circulation module 62, and operates the first connection mechanism 8 to separate the car 3 from the first circulation module 61 or the second circulation module 62; after the passengers on the floor have finished going up and down, the elevator load condition and moving direction are determined again;

[0059] When the elevator is not used by anyone, the elevator can be started automatically. At this time, it is in an unloaded state, so that the counterweights 64 on the first circulation module 61 and the second circulation module 62 move in the opposite direction to the initial state; so that the counterweights 64 on the first circulation module 61 and the second circulation module 62 are one at the highest position and one at the lowest position; and when used in the next round, the use order of the first circulation module 61 and the second circulation module 62 is swapped, that is, the counterweight 64 at the highest position is always regarded as the second circulation module 62, and the counterweight 64 at the lowest position is always regarded as the first circulation module 61;

[0060] Therefore, during the operation, under the premise of ensuring the safe operation of the elevator, through the cooperation of the first connecting mechanism 8, the second connecting mechanism 9 and the first circulation module 61, the second circulation module 62, the gravity difference at both ends of the traction rope 5 is always kept at a small state, thereby reducing the power required for the operation of the traction mechanism 2 and effectively reducing energy consumption.

[0061] Embodiment 2: In some embodiments, Figure 1-Figure 11 As shown, as a preferred embodiment of the present invention, the first circulation module 61 includes a fixed seat 611, an upper guide wheel 612, a lower guide wheel 613, a counterweight steel wire rope 614 and a sliding rod 615. The fixed seats 611 are fixedly installed on the upper and lower sides of the elevator shaft 12, the upper guide wheel 612 is rotatably installed on the upper side fixed seat 611, and the lower guide wheel 613 is rotatably installed on the lower side fixed seat 611; the counterweight steel wire rope 614 passes around the upper side of the upper guide wheel 612 and the lower side of the lower guide wheel 613; the upper end of the counterweight steel wire rope 614 is fixedly connected to the counterweight block 64, and the lower end of the counterweight steel wire rope 614 is fixedly connected to the lower end of the counterweight block 64; a plurality of sliding rods 615 are fixedly installed in the elevator shaft 12, and the counterweight block 64 is limitedly slidably connected to the sliding rod 615;

[0062] The connection position between the counterweight steel wire rope 614 and the clamping module 82 is located on a side away from the counterweight block 64;

[0063] The brake module 63 includes a brake wheel 631, a brake arm 632, a brake block 633, an extension rod 634, a brake rod 635, a brake spring 636, a first electromagnet 637, a first magnetic block 638 and a mounting frame 639. The brake wheel 631 is fixedly connected to the upper guide wheel 612, and brake arms 632 are symmetrically arranged on both sides of the brake wheel 631; the lower end of the brake arm 632 is rotatably mounted on the fixed seat 611, the middle part of the brake arm 632 is fixedly mounted with a brake block 633, and the upper end of the brake arm 632 is connected to the lower end of the extension rod 634. The ends of the brake rod 635 are respectively connected; the two ends of the brake rod 635 pass through the middle of the two extension rods 634; the two ends of the brake rod 635 are respectively sleeved with a brake spring 636; one end of the brake spring 636 is fixedly connected to the brake rod 635, and the other end of the brake spring 636 is fixedly connected to the extension rod 634; the upper end of the extension rod 634 is fixedly installed with a first magnetic block 638; the mounting frame 639 is fixedly installed on the fixing seat 611, and the upper side of the mounting frame 639 is fixedly installed with a first electromagnet 637 for adsorbing the first magnetic block 638;

[0064] The first connecting mechanism 8 includes a mounting module 81 and a clamping module 82. Two sets of mounting modules 81 are fixedly mounted on the car 3. One set of mounting modules 81 is aligned with the first circulation module 61, and the other set of mounting modules 81 is aligned with the second circulation module 62. Multiple sets of clamping modules 82 for clamping the counterweight steel wire rope 614 are evenly mounted at equal intervals on the mounting module 81.

[0065] The installation module 81 includes a fixed arm 811, a support frame 812 and a guide rod 813. The fixed arm 811 is fixedly installed on the rear side of the car 3. The fixed arm 811 is fixedly connected to one side of the support frame 812. A plurality of guide rods 813 are evenly fixedly installed at equal intervals on the other side of the support frame 812.

[0066] The clamping module 82 includes a clamping module and a driving module. The clamping module is mounted on the guide rod 813, and the fixed arm 811 is mounted with a driving module for driving the clamping module.

[0067] The clamping module includes a slider 821, a clamping plate 822 and a connecting rod 823. The slider 821 is symmetrically and slidably mounted on the guide rod 813, and the clamping plate 822 is fixedly mounted on the slider 821. The slider 821 is rotatably connected to one end of the connecting rod 823.

[0068] The driving module includes a synchronization block 824, a limit rod 825, a stopper 826, a second electromagnet 827, a second magnetic block 828 and a return spring 829. The other ends of the two connecting rods 823 are rotatably mounted on the same synchronization block 824. One end of the limit rod 825 is fixedly connected to the synchronization block 824, and the other end of the limit rod 825 passes through the fixed arm 811 and is fixedly mounted with a stopper 826; the limit rod 825 is limitedly slidably connected to the fixed arm 811; the second electromagnet 827 is fixedly mounted on the fixed arm 811, and the second magnetic block 828 is fixedly mounted on the synchronization block 824; a return spring 829 is provided on the outer sleeve of the limit rod 825; one end of the return spring 829 is fixedly connected to the stopper 826, and the other end of the return spring 829 is fixedly connected to the second magnetic block 828;

[0069] The structure of the second connection mechanism 9 is the same as that of the first connection mechanism 8; when the second connection mechanism 9 is in the clamping state, the two clamping plates 822 of the second connection mechanism 9 are located on the inner side of the two clamping plates 822 of the first connection mechanism 8; when the second connection mechanism 9 is in the non-clamping state, the two clamping plates 822 of the second connection mechanism 9 are located on the inner side of the two clamping plates 822 of the first connection mechanism 8;

[0070] The traction mechanism 2 includes a motor 21, a reducer 22, a brake 23, a traction wheel 24 and a guide wheel 25. The motor 21 is fixedly installed on the machine room 11, and the output end of the motor 21 is fixedly connected to the power input end of the reducer 22. The power output end of the reducer 22 is fixedly installed with a traction wheel 24 for driving the traction rope 5 to move, and the power input end of the reducer 22 is installed with a brake 23; the guide wheel 25 for guiding the traction rope 5 is rotatably installed on the machine room 11.

[0071] In this embodiment, when the counterweight mechanism 6, the first connecting mechanism 8 and the second connecting mechanism 9 work normally, the motor 21 drives the traction wheel 24 to rotate through the reducer 22, thereby driving the traction rope 5 to move; the traction rope 5 remains parallel to the guide rail 121 under the guidance of the guide wheel 25;

[0072] In the initial state, the first electromagnet 637 is closed; the extension rods 634 on both sides are moved closer to each other under the action of the brake spring 636, thereby driving the brake arm 632 to rotate inward, and the brake arm 632 rotates inward to drive the brake block 633 to press the brake wheel 631, so that the brake wheel 631 cannot rotate, thereby locking the upper guide wheel 612; the upper guide wheel 612 no longer rotates, and the counterweight wire rope 614 does not move;

[0073] When it is necessary to activate the counterweight wire rope 614 to balance the counterweight, the second electromagnet 827 is turned on, and the second electromagnet 827 drives the second magnetic block 828 to move, thereby driving the synchronous block 824 to move horizontally under the limiting action of the limiting rod 825, and the reset spring 829 is compressed; the movement of the synchronous block 824 drives the slider 821 to move through the connecting rod 823, and the slider 821 moves inward under the guiding action of the guide rod 813, so that the two sliders 821 on the guide rod 813 are close to each other, so that the clamping plates 822 are close to each other, and the counterweight wire rope 614 is clamped by the clamping plates 822; then the first electromagnet 637 is started, and the magnetic force of the first electromagnet 637 causes the first magnetic blocks 638 on both sides to move away from each other, thereby driving the extension rods 634 away from each other, and the brake spring 636 is compressed; At this time, the brake arm 632 rotates outward to drive the brake block 633 to disengage from the brake wheel 631, so that the brake block 633 is not in contact with the brake wheel 631, and the lock on the brake wheel 631 is released, and then the lock on the upper guide wheel 612 is released; the upper guide wheel 612 can be rotated, and the counterweight wire rope 614 can be moved, and then the counterweight block 64 on the counterweight wire rope 614 can be vertically moved under the limiting action of the slide bar 615; so that when the elevator is running, the car 3 moves through the fixed arm 811, the support frame 812, the guide rod 813, the slider 821 and the clamping plate 822 to drive the counterweight wire rope 614 to move, so that the counterweight block 64 on the other side of the upper guide wheel 612 through the counterweight wire rope 614 and the counterweight 4 on the other side of the traction wheel 24 through the traction rope 5 jointly balance the gravity of the car 3;

[0074] After use, the first electromagnet 637 is turned off, the brake spring 636 is reset and drives the brake arm 632 and the brake block 633 to reset through the extension rod 634, and the brake wheel 631 is locked again; then the second electromagnet 827 is turned off, the reset spring 829 is reset, and drives the second electromagnet 827, the synchronization block 824 and the limit rod 825 to reset, thereby driving the slider 821 and the clamping plate 822 to reset through the connecting rod 823, so that the clamping plate 822 releases the counterweight wire rope 614.

[0075] Embodiment 3: In some embodiments, Figure 1-Figure 11 As shown, as a preferred embodiment of the present invention, a method for using a lifting mechanism for safe operation of an elevator comprises the following steps:

[0076] Step 1: In the initial state, the counterweight block 64 on the first circulation module 61 is at the lowest point, and the counterweight block 64 on the second circulation module 62 is at the highest point; after the car 3 stops at a certain floor, the user enters the car 3 and selects the floor to be reached; the elevator control system is based on the load condition and the running direction of the car 3; when the elevator load is less than 15% of the elevator full load and the elevator needs to rise, execute step 2; when the elevator load is less than 15% of the elevator full load and the elevator descends, execute step 3; when the elevator load is greater than 85% of the elevator full load and the elevator rises, execute step 4; when the elevator load is greater than 85% of the elevator full load and the elevator descends, execute step 5;

[0077] Step 2: Determine the size of the lifting distance required by the user and the available lifting distance of the counterweight 64 on the first circulation module 61. If the lifting distance required by the user is greater than the available lifting distance of the counterweight 64 on the first circulation module 61, the second connecting mechanism 9 is not activated; otherwise, the counterweight 4 is connected to the first circulation module 61 through the second connecting mechanism 9, and the brake module 63 releases the lock on the first circulation module 61; the traction mechanism 2 drives the car 3 to rise through the traction rope 5, and the counterweight 4 descends, and the counterweight 4 drives the counterweight 64 on the first circulation module 61 to rise through the second connecting mechanism 9; in this process, the gravity of the counterweight 4 is balanced by the counterweight 64 on one side of the first circulation module 61 and the car 3;

[0078] Step 3: Determine the size of the required descent distance of the user and the available descent distance of the counterweight 64 on the second circulation module 62. If the required descent distance of the user is greater than the available descent distance of the counterweight 64 on the second circulation module 62, the second connecting mechanism 9 is not activated; otherwise, the counterweight 4 is connected to the second circulation module 62 through the second connecting mechanism 9, and the brake module 63 releases the lock on the second circulation module 62; the traction mechanism 2 drives the car 3 to descend through the traction rope 5, and the counterweight 4 to rise, and the counterweight 4 drives the counterweight 64 on the second circulation module 62 to descend through the second connecting mechanism 9; in this process, the car 3 and the counterweight 64 on the second circulation module 62 jointly balance the gravity of the counterweight 4;

[0079] Step 4: Determine the size of the ascending distance required by the user and the available descending distance of the counterweight 64 on the second circulation module 62. If the ascending distance required by the user is greater than the available descending distance of the counterweight 64 on the second circulation module 62, the first connecting mechanism 8 is not activated; otherwise, the car 3 is connected to the second circulation module 62 through the first connecting mechanism 8, and the brake module 63 releases the lock on the second circulation module 62; the traction mechanism 2 drives the car 3 to rise and the counterweight 4 to descend through the traction rope 5, and the car 3 drives the counterweight 64 on the second circulation module 62 to descend through the first connecting mechanism 8; in this process, the gravity of the car 3 is balanced by the counterweight 64 on the second circulation module 62 and the counterweight 4;

[0080] Step 5: Determine the size of the lifting distance required by the user and the lifting distance available for the counterweight 64 on the first circulation module 61; if the lifting distance required by the user is greater than the lifting distance available for the counterweight 64 on the first circulation module 61, the first connecting mechanism 8 is not activated; otherwise, the car 3 is connected to the first circulation module 61 through the first connecting mechanism 8, the brake module 63 releases the lock on the first circulation module 61, the traction mechanism 2 drives the car 3 to descend through the traction rope 5, the counterweight 4 rises, and the car 3 drives the counterweight 64 on the first circulation module 61 to rise through the first connecting mechanism 8; in this process, the gravity of the car 3 is balanced by the counterweight 64 on the first circulation module 61 and the counterweight 4;

[0081] Step six: After the elevator runs to the designated floor, the braking module 63 locks the first circulation module 61 and the second circulation module 62, and then operates the second connecting mechanism 9 to separate the counterweight 4 from the first circulation module 61 or the second circulation module 62, and operates the first connecting mechanism 8 to separate the car 3 from the first circulation module 61 or the second circulation module 62.

[0082] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An elevator safe operation lifting mechanism, comprising a machine room (11), an elevator shaft (12), a traction mechanism (2), a car (3), a counterweight (4), a traction rope (5), a counterweight mechanism (6), a first connecting mechanism (8) and a second connecting mechanism (9), characterized in that: Guide rails (121) for guiding the car (3) and the counterweight (4) are symmetrically fixedly installed in the elevator shaft (12); rollers for rolling contact with the guide rails (121) are respectively installed on the car (3) and the counterweight (4); the two ends of the traction rope (5) are respectively fixedly connected to the car (3) and the counterweight (4); and a traction mechanism (2) for driving the traction rope (5) is fixedly installed on the upper side of the machine room (11); A counterweight mechanism (6) is installed in the elevator shaft (12); the counterweight mechanism (6) comprises a first circulation module (61), a second circulation module (62), a brake module (63) and a counterweight block (64); the first circulation module (61) and the second circulation module (62) are symmetrically installed on both sides of the elevator shaft (12); a group of brake modules (63) are respectively installed on the first circulation module (61) and the second circulation module (62); and the counterweight block (64) is fixedly installed on the first circulation module (61) and the second circulation module (62); The car (3) is symmetrically provided with first connection mechanisms (8) for connecting to the first circulation module (61) and the second circulation module (62), and the counterweight (4) is symmetrically provided with second connection mechanisms (9) for connecting to the first circulation module (61) and the second circulation module (62); the first connection mechanism (8) and the second connection mechanism (9) are staggered.

2. The elevator safe operation lifting mechanism according to claim 1, characterized in that: The first circulation module (61) comprises a fixed seat (611), an upper guide wheel (612), a lower guide wheel (613), a counterweight steel wire rope (614) and a sliding rod (615). The fixed seats (611) are fixedly installed on the upper and lower sides of the elevator shaft (12). The upper guide wheel (612) is rotatably installed on the upper side fixed seat (611), and the lower guide wheel (613) is rotatably installed on the lower side fixed seat (611); the counterweight steel wire rope (614) passes around the upper side of the upper guide wheel (612) and the lower side of the lower guide wheel (613); the upper end of the counterweight steel wire rope (614) is fixedly connected to the counterweight block (64), and the lower end of the counterweight steel wire rope (614) is fixedly connected to the lower end of the counterweight block (64); a plurality of sliding rods (615) are fixedly installed in the elevator shaft (12), and the counterweight block (64) is slidably connected to the sliding rod (615) in a limited position.

3. The elevator safe operation lifting mechanism according to claim 2, characterized in that: The brake module (63) comprises a brake wheel (631), a brake arm (632), a brake block (633), an extension rod (634), a brake rod (635), a brake spring (636), a first electromagnet (637), a first magnetic block (638) and a mounting frame (639); the brake wheel (631) is fixedly connected to the upper guide wheel (612); brake arms (632) are symmetrically arranged on both sides of the brake wheel (631); the lower end of the brake arm (632) is rotatably mounted on the fixed seat (611); the middle part of the brake arm (632) is fixedly mounted with a brake block (633); the upper end of the brake arm (632) is connected to the extension rod (611); The brake rod (635) is fixedly connected to the lower end of the extension rod (634); the two ends of the brake rod (635) pass through the middle parts of the two extension rods (634) respectively; the two ends of the brake rod (635) are respectively sleeved with a brake spring (636); one end of the brake spring (636) is fixedly connected to the brake rod (635), and the other end of the brake spring (636) is fixedly connected to the extension rod (634); the upper end of the extension rod (634) is fixedly installed with a first magnetic attraction block (638); the mounting frame (639) is fixedly installed on the fixing seat (611), and the upper side of the mounting frame (639) is fixedly installed with a first electromagnet (637) for adsorbing the first magnetic attraction block (638).

4. The elevator safe operation lifting mechanism according to claim 3, characterized in that: The first connection mechanism (8) comprises a mounting module (81) and a clamping module (82); two groups of mounting modules (81) are fixedly mounted on the car (3); one group of mounting modules (81) is aligned with the first circulation module (61), and the other group of mounting modules (81) is aligned with the second circulation module (62); and multiple groups of clamping modules (82) for clamping counterweight steel wire ropes (614) are evenly mounted at equal intervals on the mounting modules (81).

5. The elevator safe operation lifting mechanism according to claim 4, characterized in that: The mounting module (81) comprises a fixed arm (811), a support frame (812) and a guide rod (813); the fixed arm (811) is fixedly mounted on the rear side of the car (3); the fixed arm (811) is fixedly connected to one side of the support frame (812); and a plurality of groups of guide rods (813) are fixedly mounted at even intervals on the other side of the support frame (812).

6. The elevator safe operation lifting mechanism according to claim 5, characterized in that: The clamping module (82) comprises a clamping module and a driving module. The clamping module is mounted on the guide rod (813), and the fixed arm (811) is mounted with a driving module for driving the clamping module.

7. The elevator safe operation lifting mechanism according to claim 6, characterized in that: The clamping module comprises a slider (821), a clamping plate (822) and a connecting rod (823); the slider (821) is symmetrically and slidably mounted on the guide rod (813); the clamping plate (822) is fixedly mounted on the slider (821); and the slider (821) is rotatably connected to one end of the connecting rod (823).

8. The elevator safe operation lifting mechanism according to claim 7, characterized in that: The driving module comprises a synchronization block (824), a limiting rod (825), a stopper (826), a second electromagnet (827), a second magnetic block (828) and a reset spring (829); the other ends of the two connecting rods (823) are rotatably mounted on the same synchronization block (824); one end of the limiting rod (825) is fixedly connected to the synchronization block (824); the other end of the limiting rod (825) passes through the fixed arm (811) and is fixedly mounted with the stopper (826); the limiting rod (825) is limitedly slidably connected to the fixed arm (811); the second electromagnet (827) is fixedly mounted on the fixed arm (811); the second magnetic block (828) is fixedly mounted on the synchronization block (824); a reset spring (829) is provided on the outer sleeve of the limiting rod (825); one end of the reset spring (829) is fixedly connected to the stopper (826), and the other end of the reset spring (829) is fixedly connected to the second magnetic block (828).

9. The elevator safe operation lifting mechanism according to claim 8, characterized in that: The structure of the second connecting mechanism (9) is the same as that of the first connecting mechanism (8); when the second connecting mechanism (9) is in a clamping state, the two clamping plates (822) of the second connecting mechanism (9) are located on the inner side of the two clamping plates (822) of the first connecting mechanism (8); when the second connecting mechanism (9) is in a non-clamping state, the two clamping plates (822) of the second connecting mechanism (9) are located on the inner side of the two clamping plates (822) of the first connecting mechanism (8).

10. A method of use, using the elevator safe operation lifting mechanism according to claim 9, characterized in that: The following steps are involved: Step 1: In an initial state, the counterweight (64) on the first circulation module (61) is located at the lowest point, and the counterweight (64) on the second circulation module (62) is located at the highest point; after the car (3) stops at a certain floor, the user enters the car (3) and selects the floor to be reached; The elevator control system is based on the load condition and the running direction of the elevator car (3); when the elevator load is less than 15% of the elevator full load and the elevator needs to rise, step two is executed; when the elevator load is less than 15% of the elevator full load and the elevator is descending, step three is executed; when the elevator load is greater than 85% of the elevator full load and the elevator is ascending, step four is executed; when the elevator load is greater than 85% of the elevator full load and the elevator is descending, step five is executed; Step 2: Determine the size of the lifting distance required by the user and the lifting distance available for the counterweight (64) on the first circulation module (61). If the lifting distance required by the user is greater than the lifting distance available for the counterweight (64) on the first circulation module (61), the second connection mechanism (9) is not activated; otherwise, the counterweight (4) is connected to the first circulation module (61) through the second connection mechanism (9), and the brake module (63) releases the lock on the first circulation module (61); the traction mechanism (2) drives the car (3) to rise through the traction rope (5), and the counterweight (4) descends, and the counterweight (4) drives the counterweight (64) on the first circulation module (61) to rise through the second connection mechanism (9); in this process, the gravity of the counterweight (4) is balanced by the counterweight (64) on one side of the first circulation module (61) and the car (3); Step 3: Determine the size of the descent distance required by the user and the available descent distance of the counterweight (64) on the second circulation module (62). If the descent distance required by the user is greater than the available descent distance of the counterweight (64) on the second circulation module (62), the second connecting mechanism (9) is not activated; otherwise, the counterweight (4) is connected to the second circulation module (62) through the second connecting mechanism (9), and the brake module (63) releases the lock on the second circulation module (62); the traction mechanism (2) drives the car (3) to descend through the traction rope (5), and the counterweight (4) to ascend, and the counterweight (4) drives the counterweight (64) on the second circulation module (62) to descend through the second connecting mechanism (9); in this process, the car (3) and the counterweight (64) on the second circulation module (62) jointly balance the gravity of the counterweight (4); Step 4: Determine the size of the ascending distance required by the user and the available descending distance of the counterweight (64) on the second circulation module (62). If the ascending distance required by the user is greater than the available descending distance of the counterweight (64) on the second circulation module (62), the first connecting mechanism (8) is not activated; otherwise, the car (3) is connected to the second circulation module (62) through the first connecting mechanism (8), and the brake module (63) releases the lock on the second circulation module (62); the traction mechanism (2) drives the car (3) to rise and the counterweight (4) to descend through the traction rope (5), and the car (3) drives the counterweight (64) on the second circulation module (62) to descend through the first connecting mechanism (8); in this process, the weight of the car (3) is balanced by the counterweight (64) on the second circulation module (62) and the counterweight (4); Step 5: Determine the size of the lifting distance required by the user and the lifting distance available for the counterweight (64) on the first circulation module (61); if the lifting distance required by the user is greater than the lifting distance available for the counterweight (64) on the first circulation module (61), the first connecting mechanism (8) is not activated; otherwise, the car (3) is connected to the first circulation module (61) through the first connecting mechanism (8), the brake module (63) releases the lock on the first circulation module (61), the traction mechanism (2) drives the car (3) to descend through the traction rope (5), the counterweight (4) to ascend, and the car (3) drives the counterweight (64) on the first circulation module (61) to ascend through the first connecting mechanism (8); in this process, the weight of the car (3) is balanced by the counterweight (64) on the first circulation module (61) and the counterweight (4); Step 6: After the elevator runs to the designated floor, the brake module (63) locks the first circulation module (61) and the second circulation module (62), and then operates the second connection mechanism (9) to separate the counterweight (4) from the first circulation module (61) or the second circulation module (62), and operates the first connection mechanism (8) to separate the car (3) from the first circulation module (61) or the second circulation module (62).

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