Elevator counterweight guiding system

Abstract

The invention relates to the technical field of elevator counterweight guide systems, and particularly discloses an elevator counterweight guide system which comprises walls, a top plate, a counterweight device and T-shaped guide rails, the top plate is fixedly mounted on the upper surfaces of the walls, the counterweight device is mounted between the two walls, symmetrical oil tanks are fixedly mounted on the upper surface of the top plate, and the T-shaped guide rails are fixedly mounted on the upper surface of the top plate. A conveying pipe is arranged at the bottom of the oil tank, the conveying pipe penetrates through the bottom wall of the oil tank and extends into the T-shaped guide rail, an oil outlet assembly is arranged on one side of the T-shaped guide rail, and the counterweight device comprises a counterweight frame, a counterweight block, a lifting device, an upper guide block and a lower guide block. The oil filling device has the beneficial effects that the problem that the guide block and the T-shaped guide rail are blocked due to no oil is effectively solved, meanwhile, the oil filling process is more convenient, oil waste is greatly reduced, used oil in the oil storage vessel is effectively reused, and energy is effectively saved.

Description

Technical Field

[0001] The invention relates to the technical field of elevator counterweight guide systems, and in particular to an elevator counterweight guide system. Background Art

[0002] With the development of traction passenger elevator technology, the market demand for the performance, carrying capacity, safety, and installation convenience of elevator products is increasing. The structure of elevators is becoming more and more diversified. As an important component of traction elevators, the guide system of the elevator counterweight also needs to keep pace with the times.

[0003] In the prior art, the counterweight of an elevator can move up and down on a T-shaped guide rail only through the guidance of a guide block. During the upward movement, the upper guide block plays a major role, while during the downward movement, the lower guide block plays a major role. The weight of the bridge car is balanced by the up and down movement of the counterweight, while ensuring the smooth operation of the elevator.

[0004] However, the movement of the guide block on the T-shaped guide rail plays a major guiding role. However, after long-term use, the elevator often gets stuck. In fact, it is because the elevator has not been maintained for too long, resulting in the depletion of the lubricating oil between the guide block and the T-shaped guide rail. Therefore, lubricating oil should be added to the guide rail after a period of time. The process of adding lubricating oil requires pausing the elevator and entering the hoistway to apply it, which is too troublesome. Summary of the invention

[0005] The object of the present invention is to provide an elevator counterweight guiding system to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an elevator counterweight guide system, comprising: a wall, a top plate, a counterweight device and a T-shaped guide rail, the top plate is fixedly mounted on the upper surface of the wall, the counterweight device is mounted between the two walls, the two T-shaped guide rails are respectively fixedly mounted on the two walls, a symmetrical oil tank is fixedly mounted on the upper surface of the top plate, a delivery pipe is arranged at the bottom of the oil tank, the delivery pipe passes through the bottom wall of the oil tank and extends into the T-shaped guide rail, an oil outlet assembly is arranged on one side of the T-shaped guide rail, the counterweight device comprises a counterweight frame, a counterweight block, a lifting device, an upper guide block and a lower guide block, a plurality of the counterweight blocks are arranged in the counterweight frame and slidably connected thereto, the topmost counterweight block is fixed on the counterweight frame, the lifting device is arranged above the counterweight frame, the two upper guide blocks are both fixedly mounted on the counterweight frame, and the two lower guide blocks are both fixedly mounted on the lower surface of the counterweight frame.

[0007] Preferably, the oil outlet assembly includes a telescopic tube, a first spring, a tightening head and a second ball, the telescopic tube is hollow, the telescopic tube extends into the T-shaped guide rail and is slidably connected thereto, the telescopic tube is connected to the delivery pipe via the T-shaped guide rail, a first spring is fixedly installed at one end of the telescopic tube, one end of the first spring is fixedly connected to one end of the telescopic rod, the other end of the first spring is fixedly connected to the T-shaped guide rail, the tightening head is fixedly installed at one end of the telescopic rod, the tightening head is divided into a small end and a large end, the large end is connected to one end of the telescopic rod, and the second ball is embedded in the smaller end of the tightening head and is rollingly connected thereto.

[0008] Preferably, both of the two upper guide blocks are provided with a first slideway, one end of the first slideway is provided with a second inclined surface, the first slideway is slidably connected to the T-shaped guide rail, and the upper guide blocks are fixedly connected to the counterweight frame by screws.

[0009] Preferably, the oil tank is configured as a rectangular structure, the four inner walls of the oil tank are all provided with a first inclined surface, a circular groove is opened at the center of the bottom of the oil tank, the circular groove is set shallowly, the center of the circular groove is a delivery pipe, one end of the delivery pipe is flush with the bottom of the circular groove, a metal ball is arranged in the circular groove, and an electromagnet is arranged at the bottom of one of the first inclined surfaces, and the electromagnet can attract the metal ball to leave the circular groove.

[0010] Preferably, an oil storage pan is fixedly mounted on the bottom end of the T-shaped guide rail, a supporting leg is fixedly mounted on the bottom of the oil storage pan, and the bottom of the supporting leg is configured as a bottom plate.

[0011] Preferably, a plurality of buffer devices are fixedly mounted on the upper surface of the base plate, each of the buffer devices comprises a support column, a second spring, a lifting column and a lifting head, the support column is fixedly mounted on the upper surface of the base plate, the lifting column is mounted on the top of the support column, the lifting column extends into the support column and is slidably connected thereto, a lifting head is fixedly mounted on the top of the lifting column, a second spring is arranged between the lifting head and the fixed column, the lifting column passes through the second spring and is slidably connected thereto, one end of the second spring is fixedly connected to the bottom of the lifting head, and the other end of the second spring is fixedly connected to the top of the support column.

[0012] Preferably, a second slideway is provided on the lower guide block, a lifting plate is provided below the lower guide block, the lifting plate can extend into the lower guide block and be slidably connected thereto, and an oiling plate is fixedly installed at the bottom of the lifting plate.

[0013] Preferably, an oil groove is provided on the upper surface of the oil lubricating plate, an acceleration track is provided on a side wall of the oil groove, the acceleration track is arranged to be inclined downward, a first ball is embedded in the end of the acceleration track, the first ball is rollingly connected to the end of the acceleration track, and the first ball is rollingly connected to the T-shaped guide rail.

[0014] Preferably, a buffer plate is fixedly mounted on the bottom of the counterweight frame.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. By installing an oil tank on the upper surface of the top plate and discharging oil through the oil outlet assembly, it can be ensured that as the elevator runs, a small amount of oil will flow from the oil barrel to the T-shaped guide rail continuously, effectively solving the problem of jamming between the guide block and the T-shaped guide rail due to lack of oil. In addition, there is no need to enter the well for refueling, and it can be directly added to the oil tank, which makes the refueling process more convenient.

[0017] 2. An oil storage pan is provided at the bottom of the T-shaped guide rail. The oil storage pan can catch the oil flowing out of the oil tank and store it in the oil storage pan. The oil storage pan can catch the oil flowing out from around the oil outlet component due to excessive oil due to disrepair, which greatly reduces the waste of oil and allows the used oil to be reused.

[0018] A second spring and an oil lubricating plate are arranged below the lower guide block. When the oil in the oil barrel flows out and is caught by the oil storage dish, the oil lubricating plate can take out part of the oil from the oil storage dish during the movement of the elevator and slide it onto the T-shaped guide rail through the acceleration path and the ball bearing to lubricate it, so that the used oil in the oil storage dish can be reused effectively, effectively saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the T-shaped guide rail and the counterweight device of the present invention;

[0021] Figure 3 For the present invention Figure 1 A schematic diagram of the enlarged structure at point A;

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the oil outlet assembly of the present invention;

[0023] Figure 5 It is a schematic diagram of the internal structure of the fuel tank of the present invention;

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the upper guide block of the present invention;

[0025] Figure 7 It is a schematic diagram of the three-dimensional structure of the lower guide block of the present invention;

[0026] Figure 8 Schematic diagram of the cross-sectional structure of the oil-wetting plate of the present invention;

[0027] Fig. 9 It is a schematic diagram of the three-dimensional structure of the buffer device of the present invention.

[0028] In the figure: 1. wall; 2. counterweight device; 3. buffer device; 4. top plate; 5. oil tank; 6. upper guide block; 7. T-shaped guide rail; 8. oil storage dish; 9. oil outlet assembly; 10. first inclined plane; 11. electromagnet; 12. metal ball; 13. circular groove; 14. delivery pipe; 15. lower guide block; 16. buffer plate; 17. bottom plate; 18. counterweight block; 19. counterweight frame; 23. lifting device; 24. first slide; 25. support leg; 26. second inclined plane; 27. second slide; 28. lifting plate; 29. ​​oil lubrication plate; 30. oil tank; 31. acceleration track; 32. first ball; 33. telescopic tube; 34. first spring; 35. tightening head; 36. second ball; 37. support column; 38. second spring; 39. lifting column; 40. lifting head. DETAILED DESCRIPTION

[0029] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit 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.

[0030] Embodiment 1

[0031] See also Figure 1-Figure 2The present invention provides a technical solution: an elevator counterweight guide system, comprising: a wall 1, a top plate 4, a counterweight device 2 and a T-shaped guide rail 7, the top plate 4 is fixedly installed on the upper surface of the wall 1, the top plate 4 can be a floor slab originally existing in the house, the upper part of the top plate 4 also contains a variety of devices, the counterweight device 2 is installed between two walls 1, the counterweight device 2 is the main part of the counterweight system, two T-shaped guide rails 7 are respectively fixedly installed on the two walls 1, and the T-shaped guide rails 7 are symmetrically arranged, the upper surface of the top plate 4 is fixed Symmetrical oil tanks 5 are installed, and the oil in each oil tank 5 is directed to the fixed guide rail below it. A delivery pipe 14 is provided at the bottom of the oil tank 5. The delivery pipe 14 is used to deliver the oil in the oil tank 5 to the T-shaped guide rail 7. There is naturally a channel in the T-shaped guide rail 7 to deliver it to the oil outlet assembly 9. The delivery pipe 14 passes through the bottom wall of the oil tank 5 and extends into the T-shaped guide rail 7. An oil outlet assembly 9 is provided on one side of the T-shaped guide rail 7. The oil outlet assembly 9 is used to trigger the oil outlet, and does not always discharge oil to ensure that the same lubricating oil can be used for a longer time.

[0032] The counterweight device 2 includes a counterweight frame 19, a counterweight block 18, a lifting device 23, an upper guide block 6 and a lower guide block 15. Several counterweight blocks 18 are arranged in the counterweight frame 19 and are slidably connected thereto. The counterweight blocks 18 are used to add weight to the counterweight frame 19 to ensure that the gravity at both ends of the elevator power device is as balanced as possible. The top counterweight block 18 is fixed on the counterweight frame 19. The top counterweight block 18 may jump up due to overweight and weightlessness during movement, resulting in instability of the counterweight guide system of the elevator. The lifting device 23 is arranged above the counterweight frame 19. The existence of the lifting device 23 can make the counterweight device 2 rise and fall. The counterweight device 2 will change continuously according to the lifting and lowering of the elevator. The two upper guide blocks 6 are fixedly mounted on the counterweight frame 19. The upper guide block 6 is used to guide the counterweight device 2 when it moves upward. The two lower guide blocks 15 are fixedly mounted on the lower surface of the counterweight frame 19. The lower guide block 15 is used to guide the counterweight device 2 when it moves downward.

[0033] The oil outlet assembly 9 includes a telescopic tube 33, a first spring 34, a tightening head 35 and a second ball 36. The telescopic tube 33 is hollow. The telescopic tube 33 extends into the T-shaped guide rail 7 and is slidably connected thereto. The extension and contraction of the telescopic tube 33 will naturally drive part of the lubricating oil to flow out of the T-shaped guide rail 7. The telescopic tube 33 is connected to the delivery pipe 14 through the T-shaped guide rail 7. The delivery pipe 14 only delivers the lubricating oil to the T-shaped guide rail 7. There is a channel in the T-shaped guide rail 7 to deliver the lubricating oil to the position of the telescopic tube 33. A first spring 34 is fixedly installed at one end of the telescopic tube 33. The first spring 34 is to keep the delivery pipe 14 in an extended state. In this state, one end of the first spring 34 is fixedly connected to one end of the telescopic rod, and the other end of the first spring 34 is fixedly connected to the T-shaped guide rail 7. The entire first spring 34 is always out of the T-shaped guide rail 7. The tightening head 35 is fixedly installed at one end of the telescopic rod. The tightening head 35 is divided into a small end and a large end. The large end is connected to one end of the telescopic rod. The lubricating oil flows from the large end to the small end and contacts the second ball 36. The ball will be driven to the other side of the ball when it rolls. The second ball 36 is embedded in the smaller end of the tightening head 35 and is rollingly connected thereto. The oil tightening effect of the smaller end makes it more convenient to install the ball.

[0034] A first slide 24 is provided on each of the two upper guide blocks 6. The first slide 24 is the main slide of the guide block and is also provided for guiding. A second slope 26 is provided at one end of the first slide 24. The second slope 26 is used to trigger the oil outlet assembly 9 provided with a first spring 34. The first slide 24 is slidably connected to the T-shaped guide rail 7. The first slide 24 limits its sliding along the T-shaped rail, thereby playing a guiding role. The upper guide block 6 is fixedly connected to the counterweight frame 19 by screws, so the upper guide block 6 is guided by the counterweight frame 19. The oil tank 5 is provided with a rectangular structure. A cover plate is provided on the oil tank 5. The four inner walls of the oil tank 5 are provided with first slopes 10. The first slope 10 is provided to ensure that even when there is not much lubricating oil left at the end, lubricating oil will be continuously provided to the oil outlet assembly 9 until the last drop of oil flows out.

[0035] A circular groove 13 is provided at the center of the bottom of the oil tank 5. The circular groove 13 is designed to ensure that the ball bearing is always in the circular groove 13 and blocks the circular groove 13 when it is not attracted by the electromagnet 11, so that no lubricating oil will flow into the delivery pipe 14. The circular groove 13 is shallow, and the center of the circular groove 13 is the delivery pipe 14. One end of the delivery pipe 14 is flush with the bottom of the circular groove 13. The flushness is to ensure that most of the oil flowing into the circular groove 13 will be transported through the delivery pipe 14. A metal ball 12 is provided in the circular groove 13. The metal ball 12 is used to control the transportation of oil in the oil tank 5. An electromagnet 11 is provided at the bottom of one of the first inclined surfaces 10. The electromagnet 11 is the main object for controlling the metal ball 12. Whether the electromagnet 11 is charged is controlled by the control system of the elevator. There must be a control system inside the elevator. The electromagnet 11 can attract the metal ball 12 to leave the circular groove 13. The control system can release the lubricating oil after a fixed period of time when the metal ball 12 leaves once, so as to ensure that the same barrel of oil can be used for a longer time while lubricating.

[0036] During use, the oil outlet assembly 9 can only be triggered when two conditions are met. First, the electromagnet must be turned on, and the electromagnet attracts the metal ball 12 to leave the circular groove 13. Second, the upper guide block 6 must trigger the oil outlet assembly 9. When the upper guide block 6 moves upward, the second inclined surface 26 on the upper guide block 6 will contact the second ball 36 first. Therefore, when the telescopic tube 33 contracts into the T-shaped guide rail 7, the second ball 36 continuously contacts the second inclined surface 26 and rolls on the second inclined surface 26. When the second ball 36 rolls, oil is driven out by the second ball 36. Finally, the second ball 36 is slidably connected to the side wall of the first slide 24, and a steady stream of oil is brought to the inner wall of the first slide 24 by the ball.

[0037] Embodiment 2

[0038] See also Figure 3 On the basis of the first embodiment, an oil storage pan 8 is fixedly installed at the bottom end of the T-shaped guide rail 7. The existence of the oil storage pan 8 can store the oil flowing down the buffer device 3 in the oil storage pan 8 after passing through the lower guide block 15. The bottom of the oil storage pan 8 is fixedly installed with oil legs 25. The legs 25 are used to ensure the long-term temperature of the oil storage pan 8. The bottom of the legs 25 is set as a bottom plate 17. A plurality of buffer devices 3 are fixedly installed on the upper surface of the bottom plate 17. The buffer devices 3 are used to buffer the last section of the elevator to ensure that the elevator does not touch the bottom and cause wear when the speed is too fast.

[0039] Each buffer device 3 includes a support column 37, a second spring 38, a lifting column 39 and a lifting head 40. The support column 37 is fixedly mounted on the upper surface of the bottom plate 17, and the lifting column 39 is mounted on the top of the support column 37. The lifting column 39 is the key to buffering. The lifting column 39 extends into the support column 37 and is slidably connected thereto. When the lifting column 39 is compressed, the lifting column 39 will extend into the support column 37. The lifting head 40 is fixedly mounted on the top of the lifting column 39. The second spring 38 is arranged between the lifting head 40 and the fixed column. The second spring 38 and the lifting head 40 make the lifting head 40 be in the highest position under normal conditions, and the spring is in a slightly compressed state. The lifting column 39 is in an extended state, the lifting column 39 passes through the second spring 38 and is slidably connected thereto, the lifting column 39 and the second spring 38 move forward and backward together, the second spring 38 is compressed when the lifting column 39 descends, and the second spring 38 releases pressure when the lifting column 39 rises, one end of the second spring 38 is fixedly connected to the bottom of the lifting head 40, and the other end of the second spring 38 is fixedly connected to the top of the support column 37. The existence of the second spring 38 supports the lifting column 39 and the lifting head 40, and a buffer plate 16 is fixedly installed at the bottom of the counterweight frame 19, and the buffer plate 16 will contact the lifting head 40 and perform buffering under the action of the spring and the buffer plate 16.

[0040] The existence of the oil storage pan 8 collects the lubricating oil flowing down along the T-plate. The oil storage pan 8 is raised by the support legs 25. The bottom height of the oil storage pan 8 is slightly lower than the height of the supported upper surface. The height of the oil that can be stored in the oil storage pan 8 is slightly lower than the lowest bottom height of the lower guide block 15, and the height of the lifting plate 28 is slightly higher than the height of the lifting column 39 plus the lifting head 40. In this way, once the bottom of the lower guide block 15 is flush with the lifting head 40, the oil lubricating plate 29 will contact the bottom of the oil storage pan 8. In other words, as long as there is oil in the oil storage pan 8, it will contact the oil lubricating plate 29. When the lower guide block 15 moves downward again, part of the lifting plate 28 will extend into the lower guide block 15, and during this process, the oil lubricating plate 29 will still contact the bottom of the oil storage pan 8. In this way, it is ensured that the lower guide block 15 will not contact the oil surface each time it descends. When there is more oil, the oil groove 30 will be filled, and when there is less oil, only the bottom of the oil lubricating plate 29 will contact the oil in the oil storage pan 8.

[0041] Embodiment 3

[0042] See also Figure 5-Figure 6On the basis of the second embodiment, a second slideway 27 is provided on the lower guide block 15. The second slideway 27 also enables the lower guide block 15 to have a guiding function and can slide on the T-shaped guide rail 7. A lifting plate 28 is provided below the lower guide block 15. The lifting plate 28 has a lifting function. Once the bottom of the lifting plate 28 is subjected to a force exceeding the sum of its gravity and weak friction, the lifting plate 28 will move into the lower guide block 15. The lifting plate 28 can extend into the lower guide block 15 and be slidably connected thereto. An oiling plate 29 is fixedly installed at the bottom of the lifting plate 28. The oiling plate 29 can take up the lubricating oil in the oil storage dish 8 and sprinkle it on the T-shaped guide rail 7. An oil groove 30 is provided on the upper surface of the oiling plate 29. The oil groove 30 is to fill the oil groove 30 when the oiling plate 29 is inserted into the oil storage dish 8. An acceleration track 31 is provided on one side wall of the oil groove 30. The oil in the filled oil groove 30 will slide down from the acceleration track 31 during the rising process of the lower guide block 15. The sliding oil will rush out at a certain speed through the acceleration of the acceleration track 31 and rush onto the T-shaped plate. In this way, some lubricating oil will also exist when the lower guide block 15 moves to the top. The acceleration track 31 is tilted downward to ensure that the rushing oil will contact the T-shaped plate. A first ball 32 is embedded in the end of the acceleration track 31. The first ball 32 is rollingly connected to the end of the acceleration track 31, and the first ball 32 is rollingly connected to the T-shaped guide rail 7. When there is little oil left in the oil groove 30, some of the oil will be blocked by the first ball 32. The first ball 32 will roll on the T-shaped plate during the movement of the lower guide block 15 and bring the oil to the T-shaped plate.

[0043] In actual use, an elevator counterweight guide system can trigger the oil outlet assembly 9 only when two conditions are met. First, the electromagnet must be turned on, and the electromagnet attracts the metal ball 12 to leave the circular groove 13. Second, the upper guide block 6 must trigger the oil outlet assembly 9. When the upper guide block 6 moves upward, the second inclined surface 26 on the upper guide block 6 contacts the second ball 36 first. Therefore, when the telescopic tube 33 contracts into the T-shaped guide rail 7, the second ball 36 continuously contacts the second inclined surface 26 and rolls on the second inclined surface 26. The second ball 36 rolls When it moves, oil will be driven out by the second ball bearings 36, and finally the second ball bearings 36 will be slidably connected with the side wall of the first slideway 24, and a steady stream of oil will be brought to the inner wall of the first slideway 24 by the ball bearings, and the oil on the inner wall will eventually roll down into the oil storage dish 8, and the oil storage dish 8 will start to collect the fallen oil. When there is a lot of oil stored, the oil lubricating plate 29 will bring up the oil in the oil storage dish 8 during the rising process of the lower guide block 15, and spray it on the rising T-shaped guide rail 7 through the acceleration path 31, so that the used oil in the oil storage dish 8 can be reused effectively, thereby effectively saving energy.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An elevator counterweight guiding system, comprising: A wall (1), a top plate (4), a counterweight device (2) and a T-shaped guide rail (7), wherein the top plate (4) is fixedly mounted on the upper surface of the wall (1), the counterweight device (2) is mounted between two walls (1), and the two T-shaped guide rails (7) are respectively fixedly mounted on the two walls (1), characterized in that: a symmetrical oil tank (5) is fixedly mounted on the upper surface of the top plate (4), a delivery pipe (14) is arranged at the bottom of the oil tank (5), the delivery pipe (14) passes through the bottom wall of the oil tank (5) and extends into the T-shaped guide rail (7), and an oil outlet is arranged on one side of the T-shaped guide rail (7). The counterweight device (2) comprises a counterweight frame (19), a counterweight block (18), a lifting device (23), an upper guide block (6) and a lower guide block (15); a plurality of the counterweight blocks (18) are arranged in the counterweight frame (19) and are slidably connected thereto; the uppermost counterweight block (18) is fixed on the counterweight frame (19); the lifting device (23) is arranged above the counterweight frame (19); the two upper guide blocks (6) are fixedly mounted on the counterweight frame (19); and the two lower guide blocks (15) are fixedly mounted on the lower surface of the counterweight frame (19).

2. An elevator counterweight guide system according to claim 1, characterized in that: The oil outlet assembly (9) comprises a telescopic tube (33), a first spring (34), a tightening head (35) and a second ball (36). The telescopic tube (33) is hollow. The telescopic tube (33) extends into the T-shaped guide rail (7) and is slidably connected thereto. The telescopic tube (33) is connected to the delivery pipe (14) through the T-shaped guide rail (7). A first spring (34) is fixedly installed at one end of the telescopic tube (33). One end of the first spring (34) is fixedly connected to one end of the telescopic rod. The other end of the first spring (34) is fixedly connected to the T-shaped guide rail (7). The tightening head (35) is fixedly installed at one end of the telescopic rod. The tightening head (35) is divided into a small end and a large end. The large end is connected to one end of the telescopic rod. The second ball (36) is embedded in the smaller end of the tightening head (35) and is rollingly connected thereto.

3. An elevator counterweight guide system according to claim 2, characterized in that: A first slideway (24) is provided on each of the two upper guide blocks (6), a second inclined surface (26) is provided at one end of the first slideway (24), the first slideway (24) is slidably connected to the T-shaped guide rail (7), and the upper guide block (6) is fixedly connected to the counterweight frame (19) by screws.

4. An elevator counterweight guide system according to claim 3, characterized in that: The oil tank (5) is arranged as a rectangular parallelepiped structure. The four inner walls of the oil tank (5) are all provided with first inclined surfaces (10). A circular groove (13) is provided at the center of the bottom of the oil tank (5). The circular groove (13) is arranged shallowly. The center of the circular groove (13) is a delivery pipe (14). One end of the delivery pipe (14) is flush with the bottom of the circular groove (13). A metal ball (12) is arranged in the circular groove (13). An electromagnet (11) is arranged at the bottom of one of the first inclined surfaces (10). The electromagnet (11) can attract the metal ball (12) to leave the circular groove (13).

5. An elevator counterweight guide system according to claim 4, characterized in that: An oil storage pan (8) is fixedly mounted on the bottom end of the T-shaped guide rail (7), a support leg (25) is fixedly mounted on the bottom of the oil storage pan (8), and the bottom of the support leg (25) is arranged as a bottom plate (17).

6. An elevator counterweight guide system according to claim 5, characterized in that: A plurality of buffer devices (3) are fixedly mounted on the upper surface of the base plate (17), each of the buffer devices (3) comprising a support column (37), a second spring (38), a lifting column (39) and a lifting head (40); the support column (37) is fixedly mounted on the upper surface of the base plate (17); the lifting column (39) is mounted on the top of the support column (37); the lifting column (39) extends into the support column (37) and is slidably connected thereto; a lifting head (40) is fixedly mounted on the top of the lifting column (39); a second spring (38) is arranged between the lifting head (40) and the support column (37); the lifting column (39) penetrates the second spring (38) and is slidably connected thereto; one end of the second spring (38) is fixedly connected to the bottom of the lifting head (40); and the other end of the second spring (38) is fixedly connected to the top of the support column (37).

7. An elevator counterweight guide system according to claim 6, characterized in that: The lower guide block (15) is provided with a second slideway (27), and a lifting plate (28) is provided below the lower guide block (15). The lifting plate (28) can extend into the lower guide block (15) and be slidably connected thereto, and an oil lubrication plate (29) is fixedly installed at the bottom of the lifting plate (28).

8. An elevator counterweight guide system according to claim 7, characterized in that: An oil groove (30) is provided on the upper surface of the oil lubricating plate (29), an acceleration track (31) is provided on a side wall of the oil groove (30), the acceleration track (31) is arranged to be inclined downward, a first ball (32) is embedded at the end of the acceleration track (31), the first ball (32) is rollingly connected to the end of the acceleration track (31), and the first ball (32) is rollingly connected to the T-shaped guide rail (7).

9. An elevator counterweight guide system according to claim 8, characterized in that: A buffer plate (16) is fixedly mounted on the bottom of the counterweight frame (19).

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