Elevator rail lock

Abstract

The present invention belongs to the technical field of installation and maintenance of elevators; it provides an elevator guide rail lock, which can effectively lift an elevator car and stop the elevator counterweight, is easy to use, quick to install, and can stop the elevator safely and reliably; the technical scheme adopted is: an outer plate is fixedly installed on both sides of the base, an inner plate is fixedly installed on the inner sides of the two outer plates, the two inner plates are fixedly connected to the tops of the two outer plates, a gap is left between the inner plates and the top surface of the base for the guide rail cross plate to pass through, a gap is left between the two inner plates for the guide rail vertical plate to pass through, a lock cavity with a lock handle is installed between the inner plate and the corresponding outer plate, the structure of the lock handle is that a cam hook is provided at the bottom end of the rotating block, the lock handle is connected to the corresponding inner plate and outer plate through a first pin shaft, the lower arc surface of the cam hook contacts the top surface of the base, the zipper plate is hinged to the upper end of the lock handle through a second pin shaft, the upper part of the hook is fixedly connected to the two lock plates, and the second pin shaft is connected to the upper end of the connecting plate through a tension spring.

Description

Technical Field

[0001] The invention discloses an elevator guide rail lock, which belongs to the technical field of installation and maintenance of elevators. Background Art

[0002] The structure of the elevator is that there is an elevator car on one side and an elevator counterweight on the other side. The elevator host uses a wire rope to make the car and counterweight move up and down in a straight line on the elevator guide rail. As the elevator is used for a longer time, some wearing parts (such as wire ropes and car return rope pulleys and bearings) need to be replaced. To repair and replace these parts, it is necessary to lift the car and support the counterweight in the pit so that the wire rope is suspended in the air to replace these parts. Since the hook is in the elevator room, the car is limited to the highest level. The counterweight is supported by a steel pipe in the pit of the shaft. Due to the length, weight and inconvenience of transportation of the steel pipe, the counterweight is limited to the lowest level. The biggest problem with elevator maintenance now is that the car and counterweight cannot be stopped at any position, and the operator cannot stand on the top of the car to work. Therefore, an auxiliary tool that can reliably stop the elevator is needed. Summary of the invention

[0003] The present invention overcomes the deficiencies of the prior art and aims to solve the technical problem of providing an elevator guide rail lock that can effectively lift an elevator car and stop an elevator counterweight, is easy to use, quick to install, and can stop the elevator safely and reliably.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: an elevator guide rail lock, including a base, an inner plate, an outer plate, a connecting plate, a lock handle, a zipper plate, and a hook. An outer plate is fixedly installed on both sides of the base by bolts, and an inner plate is fixedly installed on the inner sides of the two outer plates by bolts. The ends of the inner plate and the outer plate are connected by a connecting plate to fill the gap. The tops of the two inner plates and the two outer plates are fixedly connected by multiple bolts. A guide rail gap is left between the inner plate and the top surface of the base, and a gap for the guide rail vertical plate to pass through is left between the two inner plates. The inner plate and the corresponding outer plate have a gap. The space between the two locking plates is a lock cavity and a lock handle is installed in the lock cavity. The structure of the lock handle is that a cam hook is provided at the bottom end of the rotating block, and a pin shaft hole is provided on the cam hook. A first pin shaft is movably installed on the pin shaft hole, and two ends of the first pin shaft are respectively fixed to the inner plate and the outer plate corresponding to the two sides. The lower arc surface of the cam hook contacts the top surface of the base, and the distance from the lower arc surface to the center of the pin shaft hole gradually increases from the end connected to the rotating block to the tip of the hook. The zipper plate and the upper end of the lock handle are hinged through the second pin shaft, and the second pin shaft is connected to the upper end of the connecting plate below through a tensioning spring, and the upper connecting plates of the two hooks are fixedly connected to the two lock plates respectively.

[0005] At least two lock handles are arranged from top to bottom in the lock cavity between the inner plate and the corresponding outer plate, and multiple lock handles in the same lock cavity are hingedly connected to the same zipper plate, and only the second pin shaft on the lock handle at the lower end in each lock cavity is connected to the upper end of the connecting plate through a tension spring.

[0006] The upper ends of the inner and outer plates are fixedly mounted with connecting blocks, the connecting blocks are hinged with guide rods, a top column is mounted on the guide rods, a vertical guide groove is provided in the middle of the top column, the guide rods are movably mounted in the guide grooves and distance bolts are mounted on the ends of the guide rods, a shock absorbing block is mounted on the upper end of the top column, and the lower end of the top column is hinged to the upper ends of the two zipper plates.

[0007] The lower arc surface of the cam hook is provided with friction teeth.

[0008] The upper connecting plate of the hook is fastened to the two locking plates by at least two bolts.

[0009] A loosening pin hole is provided in the middle of the rotating block of the lock handle, and corresponding loosening pin holes matching therewith are provided on the corresponding inner plate and outer plate.

[0010] At least one locking observation hole is provided on the outer side plate.

[0011] Compared with the prior art, the present invention has the following beneficial effects: the bottom surface of the lock handle of the cam structure is pulled to squeeze and contact with the surface of the elevator guide rail so that the guide rail lock is locked on the guide rail under the action of friction. The greater the gravity, the greater the friction, and the locking force is more stable and reliable. The cost is low, it is easy to disassemble, it is convenient and quick to use, and the stopping is safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described in detail below in conjunction with the accompanying drawings;

[0013] Figure 1 It is a structural schematic diagram of the present invention;

[0014] Figure 2 It is a structural schematic diagram of the present invention;

[0015] Figure 3 This is a schematic diagram of the internal structure of the present invention after it is installed on a guide rail and one side of the outer panel is uncovered;

[0016] In the figure: 1 is a base, 2 is an inner plate, 3 is an outer plate, 4 is a connecting plate, 5 is a lock handle, 6 is a first pin shaft, 7 is a zipper plate, 8 is a hook, 9 is a second pin shaft, 10 is a tension spring, 11 is a connecting block, 12 is a guide rod, 13 is a top column, 14 is a guide groove, 15 is a distance bolt, 16 is a shock absorbing block, 17 is a loosening pin hole, 51 is a rotating block, 52 is a cam hook, and 53 is a pin shaft hole. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0018] like Figure 1-3 As shown, the elevator guide rail lock of the present invention comprises a base 1, an inner plate 2, an outer plate 3, a connecting plate 4, a lock handle 5, a zipper plate 7, and a hook 8. An outer plate 3 is fixedly installed on both sides of the base 1 by bolts, and an inner plate 2 is fixedly installed on the inner sides of the two outer plates 3 by bolts. The ends of the inner plate 2 and the outer plate 3 are connected by the connecting plate 4 to achieve gap filling, ensuring that the connection between the inner plate 2 and the outer plate 3 is stable and not deformed. The tops of the two inner plates 2 and the two outer plates 3 are fixedly connected by multiple bolts. A guide rail gap is left between the inner plate 2 and the top surface of the base 1, a gap is left between the two inner plates 2 for the guide rail vertical plate to pass through, and a lock cavity is between the inner plate 2 and the corresponding outer plate 3. A lock handle 5 is installed in the lock cavity, and the structure of the lock handle 5 is that a cam hook 52 is provided at the bottom end of the rotating block 51, and a pin shaft hole 53 is provided on the cam hook 52. A first pin shaft 6 is movably installed on the pin shaft hole 53, and the two ends of the first pin shaft 6 are respectively fixed to the corresponding inner plate 2 and outer plate 3 on both sides, the lower arc surface of the cam hook 52 contacts the top surface of the base 1, and the distance from the lower arc surface to the center of the pin shaft hole 53 gradually increases from the connection end with the rotating block 51 to the hook tip, the zipper plate 7 and the upper end of the lock handle 5 are hinged through the second pin shaft 9, and the second pin shaft 9 is connected to the upper end of the connecting plate 4 below through a tensioning spring 10, and the upper connecting plates of the two hooks 8 are fixedly connected to the two lock plates 7 respectively.

[0019] At least two lock handles 5 are arranged from top to bottom in the lock cavity between the inner plate 2 and the corresponding outer plate 3, and the multiple lock handles 5 in the same lock cavity are hingedly connected to the same zipper plate 7, and only the second pin shaft 9 on the lock handle 5 located at the lower end in each lock cavity is connected to the upper end of the connecting plate 4 through a tension spring 10.

[0020] A connecting block 11 is fixedly installed on the upper ends of the inner plate 2 and the outer plate 3, a guide rod 12 is hinged on the connecting block 11, a top column 13 is installed on the guide rod 12, a vertical guide groove 14 is provided in the middle of the top column 13, the guide rod 12 is movably installed in the guide groove 14 and a distance bolt 15 is installed at the end of the guide rod 12, and the distance from the top column 13 to the guide rail is adjusted by screwing the distance bolt 15 on the guide rod 12. A shock-absorbing block 16 is installed on the upper end of the top column 13, and the lower end of the top column 13 is hinged to the upper ends of the two zipper plates 7.

[0021] The lower arc surface of the cam hook 52 is provided with friction teeth to increase the friction between the lock handle 5 and the surface of the guide rail to prevent slipping.

[0022] The upper connecting plate of the hook 8 and the two locking plates 7 are fastened together by at least two bolts.

[0023] like Figure 1 , Figure 3 As shown in FIG. 1 , one embodiment of the product structure of the present invention is shown. In this embodiment, two lock handles 5 are installed in each lock cavity, and there are a total of four lock handles on the entire guide rail lock. The two lock handles 5 can make the locking mechanism play a double insurance role, and the locking is safer and more reliable.

[0024] How to use: Figure 1 , Figure 3As shown, when the elevator needs to be stopped for maintenance, an assembly platform is installed on the guide rail. First, the components of the present invention are disassembled and assembled into a group of an inner plate 2, an outer plate 3, two lock handles 5, and a zipper plate 7. The two lock handles 5 are placed between the inner plate 2 and the outer plate 3 and fixed with a first pin shaft 6. The zipper plate 7 is hinged to the upper ends of the two lock handles 5 through a second pin shaft 9. After the two groups are assembled, the inner plate 2 is attached to the inner sides of the guide rail vertical plate, and the base 1 is attached to the back of the T-shaped guide rail. At this time, the two sides of the base 1 are attached to the bottom of the outer plate 3, and the base 1 is fixedly connected to the outer plate 3 with a plurality of bolts. Use multiple bolts to fix the tops of the two inner plates 2 and the two outer plates 3, take two tension springs 10, each of which has one end connected to the second pin 9 and the other end connected to the upper end of the lower connecting plate 4, and fix the upper connecting plates of the two hooks 8 to the lower parts of the two groups of zipper plates 7 respectively. At this point, the lifting guide rail lock is assembled. Due to the deadweight of the hook 8 and the tension of the tension spring 10, the lower surface of the cam hook 52 of the locking handle 5 is close to the upper surface of the guide rail cross plate, and the guide rail lock can also be locked on the guide rail. When the position needs to be adjusted, you only need to gently push the hook 8 up, and then you can turn the locking handle 5 to make its cam hook When the lower surface is separated from the guide rail surface, the guide rail lock can be easily slid to adjust the position. When stopping the elevator, the elevator is hung on the hook 8, which applies a downward force to the lock handle 5 through the zipper plate 7, and the lock handle 5 rotates around the first pin shaft 6. Since the distance between the lower surface of the cam hook 52 and the center of the first pin shaft 6 is gradually increasing, the greater the downward force, the more the lower surface of the cam hook 52 fits the guide rail surface, and the greater the friction force, thereby realizing the lifting of the elevator car; when the elevator counterweight needs to be stopped, based on the above structure, a connecting block 11 is fixed on the top of the inner plate 2 and the outer plate 3, and a guide rod 12 is hinged on the connecting block 11, and the top column 1 The lower end of the guide rod 12 is hinged with the top ends of the two zipper plates 7, the guide rod 12 passes through the guide groove 14 in the middle of the top column 13, and is tightened and positioned with the distance bolt 15, and then the shock-absorbing block 16 is installed on the upper part of the top column 13. When in use, the guide rail is locked to a predetermined point on the guide rail. The elevator counterweight falls to press the shock-absorbing block 16 and the top column 13 downward, and the top column 13 applies a downward force to the lock handle through the zipper plate 7. The lock handle 5 rotates around the first pin shaft 6. Since the distance between the lower surface of the cam hook 52 and the center of the first pin shaft 6 is gradually increased, the greater the downward force, the more the lower surface of the cam hook 52 fits the surface of the guide rail, and the greater the friction force, thereby achieving reliable stopping of the elevator counterweight.

[0025] All the bolts of the present invention are equipped with adjusting washers to adjust the width errors of various components of the guide rail lock.

[0026] Preferably, a loosening pin hole 17 is provided in the middle of the rotating block 51 of the locking handle 5, and corresponding loosening pin holes 17 are provided on the corresponding inner plate 2 and the outer plate 3. When the present invention is idle, a pin is passed through the loosening pin hole 17, and the pin and the first pin shaft 6 form a straight line between two points, so that the locking handle 5 cannot be rotated, thereby locking and positioning the position of the locking handle 5.

[0027] At least one locking observation hole 18 is provided on the outer side plate 3 for observing the locking status of the locking handle 5 .

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. Elevator guide rail lock, characterized by: The invention comprises a base (1), an inner plate (2), an outer plate (3), a connecting plate (4), a locking handle (5), a zipper plate (7), and a hook (8). An outer plate (3) is fixedly installed on both sides of the base (1) by bolts. An inner plate (2) is fixedly installed on the inner sides of the two outer plates (3) by bolts. The ends of the inner plate (2) and the outer plate (3) are connected by a connecting plate (4) to fill the gap. The tops of the two inner plates (2) and the two outer plates (3) are fixedly connected by a plurality of bolts. A guide rail gap is left between the inner plate (2) and the top surface of the base (1). A gap is left between the two inner plates (2) for the guide rail vertical plate to pass through. A lock cavity is formed between the inner plate (2) and the corresponding outer plate (3), and a locking handle (5) is installed in the lock cavity. The lock handle (5) has a structure of a rotating block (5). 1) is provided with a cam hook (52) at the bottom end, the cam hook (52) is provided with a pin hole (53), a first pin (6) is movably mounted on the pin hole (53), and the two ends of the first pin (6) are respectively fixed to the inner plate (2) and the outer plate (3) corresponding to the two sides, the lower arc surface of the cam hook (52) is provided with friction teeth, the lower arc surface of the cam hook (52) contacts the top surface of the base (1), and the distance from the lower arc surface to the center of the pin hole (53) gradually increases from the end connected to the rotating block (51) to the hook tip, the zipper plate (7) and the upper end of the lock handle (5) are hingedly connected through a second pin (9), the second pin (9) is connected to the upper end of the lower connecting plate (4) through a tension spring (10), and the upper connecting plates of the two hooks (8) are respectively fixedly connected to the two zipper plates (7); At least two lock handles (5) are arranged from top to bottom in the lock cavity between the inner plate (2) and the corresponding outer plate (3), and the multiple lock handles (5) in the same lock cavity are hingedly connected to the same zipper plate (7), and only the second pin shaft (9) on the lock handle (5) at the lower end in each lock cavity is connected to the upper end of the connecting plate (4) through a tension spring (10); A connecting block (11) is fixedly mounted on the upper ends of the inner plate (2) and the outer plate (3), a guide rod (12) is hingedly mounted on the connecting block (11), a top column (13) is mounted on the guide rod (12), a vertical guide groove (14) is provided in the middle of the top column (13), the guide rod (12) is movably mounted in the guide groove (14), and a distance bolt (15) is mounted on the end of the guide rod (12), a shock absorbing block (16) is mounted on the upper end of the top column (13), and the lower end of the top column (13) is hingedly connected to the upper ends of the two zipper plates (7); At least one locking observation hole (18) is provided on the outer side plate (3).

2. The elevator guide rail lock according to claim 1, characterized in that: The upper connecting plate of the hook (8) and the two zipper plates (7) are fastened together by at least two bolts.

3. The elevator guide rail lock according to claim 1, characterized in that: A loosening pin hole (17) is provided in the middle of the rotating block (51) of the lock handle (5), and corresponding loosening pin holes (17) are provided on the corresponding inner plate (2) and outer plate (3).

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