Elevator guide rail sliding block locking mechanism

Abstract

The utility model relates to the technical field of elevator locking mechanisms, in particular to an elevator guide rail sliding block locking mechanism which comprises a rotating rod and two sets of elevator guide rails, the two sets of elevator guide rails are arranged on two symmetrical wall faces of an elevator shaft, a locking plate is arranged on the surface of each elevator guide rail and is of a U-shaped plate-shaped structure, and the rotating rod is arranged on the rotating rod. The two side plates of the locking plate abut against the surface of the elevator guide rail, and a threaded sleeve is fixed to the surface of the locking plate. The elevator guide rail locking device has the beneficial effects that the two sets of locking plates are pressed on the surface of the elevator guide rail through threaded connection between the threaded rods and the threaded sleeves, so that the two sets of locking plates are prevented from laterally rotating and falling off from the surface of the elevator guide rail; and under the action of the inclined surfaces of the movable wedge-shaped block and the fixed wedge-shaped block, the bearing plate is pressed on the surface of the elevator guide rail, so that the bearing plate is prevented from laterally rotating and falling off from the surface of the elevator guide rail.

Description

Technical Field

[0001] The utility model relates to the field of elevator locking mechanisms, in particular to an elevator guide rail slider locking mechanism. Background Art

[0002] An elevator is a vertical lift powered by a traction machine and equipped with a box-shaped cabin. It is used as a means of transportation for passengers or goods in multi-story buildings. During the up and down movement of the elevator, in order to guide the movement direction of the elevator, a slider is usually installed at the bottom of the elevator car, and guide rails are installed on two symmetrical walls of the elevator shaft. The slider slides along the guide rails to provide guidance for the elevator. When maintenance personnel enter the elevator shaft to inspect the elevator, it is necessary to install the elevator guide rail slider retraction device under the slider to lock the slider to prevent the elevator from accidentally falling and causing danger to the maintenance personnel in the elevator shaft.

[0003] In the prior art, a patent document with application number CN202120358978.0, which was reviewed and published by the Patent Office of the State Intellectual Property Office of China, discloses a portable elevator guide rail locking device, including a fixed frame, a slide groove is provided at the lower end of the fixed frame, and sliders are movably engaged on both sides of the slide groove, a first extrusion plate is fixedly provided on one side of the slide surface, a screw rod is movably provided in the middle of the slide groove through a bearing, and the first slider is movably sleeved on the outer surface of the screw rod through a thread, a telescopic rod is fixedly provided at the upper end of the fixed frame, and a force plate is fixedly provided at the upper end of the telescopic rod, and a transmission mechanism is provided between the fixed frame and the force plate, and the transmission mechanism includes a connecting rod, a movable rod, a first extrusion block, a second extrusion block, and a second extrusion plate, and a connecting rod is fixedly provided on both sides of the lower end of the force plate. The utility model has good use effect, and the device can be engaged with the lower end of the guide rail when repairing the elevator, so as to prevent the elevator from falling.

[0004] However, the portable elevator guide rail locking device in the prior art can only lock the slider on a single-side guide rail. When the load on the unlocked end of the car is relatively large, a relatively large lateral torque will be generated on the locking device. The locking device in the prior art lacks lateral support, so there is a risk of lateral rotation during use, and then falling off the slide rail. Utility Model Content

[0005] The purpose of the utility model is to provide an elevator guide rail slider locking mechanism to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an elevator guide rail slider locking mechanism, comprising: a rotating rod and an elevator guide rail, the elevator guide rail is provided with two groups, the two groups of elevator guide rails are arranged on two symmetrical walls of the elevator shaft, a locking plate is arranged on the surface of the elevator guide rail, the locking plate is a "U"-shaped plate structure, the two side plates of the locking plate are against the surface of the elevator guide rail, a screw sleeve is fixed on the surface of the locking plate, screw rods are arranged on the two symmetrical end surfaces of the rotating rod, the screw sleeves are arranged on the rod body of the screw rod, the thread directions of the two groups of screw rods are opposite, a fixed wedge block is fixed on the top of the locking plate, an inclined surface is provided on the top of the fixed wedge block, a movable wedge block is slidably connected to the inclined surface of the fixed wedge block, the surface where the movable wedge block contacts the fixed wedge block is also an inclined surface, and a pressure plate is fixed on the top of the movable wedge block.

[0007] Preferably, a guide block is provided below the rotating rod, a lower connecting block is fixed to the bottom end of the locking plate, one end of a guide rod is fixed to the surface of the lower connecting block, and the other end of the guide rod is movably inserted in a through hole opened on the surface of the guide block. Two groups of guide rods are provided, and the axes of the two groups of guide rods are not on the same axis and are symmetrically distributed about the guide block.

[0008] Preferably, an upper connecting block is fixed to the top of the locking plate, and the upper connecting block is a rectangular annular block structure. The fixed wedge block and the movable wedge block are both arranged in the inner ring of the upper connecting block. A movable limit block is fixed on the surface of the movable wedge block, and a fixed limit block is fixed on the inner ring surface of the upper connecting block.

[0009] Preferably, a force rod insertion groove is provided on the surface of the rotating rod, and one end of the force rod is movably inserted into the force rod insertion groove.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The elevator guide rail slider locking mechanism proposed by the utility model presses two sets of locking plates onto the surface of the elevator guide rail through the threaded connection between the screw rod and the screw sleeve, thereby preventing the two sets of locking plates from rotating sideways and falling off from the surface of the elevator guide rail. At the same time, when the elevator car guide rail generates downward pressure on the pressure plate, the pressure plate is pressed onto the surface of the elevator guide rail under the action of the inclined surfaces of the moving wedge block and the fixed wedge block, thereby preventing the pressure plate from rotating sideways and falling off from the surface of the elevator guide rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0014] Figure 3 for Figure 2A schematic diagram of the enlarged structure in the middle.

[0015] In the figure: rotating rod 1, screw rod 2, screw sleeve 3, locking plate 4, lower connecting block 5, guide rod 6, guide block 7, upper connecting block 8, pressure plate 9, fixed wedge block 10, movable wedge block 11, movable limit block 12, fixed limit block 13, elevator guide rail 14, and force rod insertion slot 15. DETAILED DESCRIPTION

[0016] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] Embodiment 1

[0018] See also Figure 1-Figure 3 The utility model provides a technical solution: an elevator guide rail slider locking mechanism, comprising: a rotating rod 1 and an elevator guide rail 14, the elevator guide rail 14 is provided with two groups, the two groups of elevator guide rails 14 are arranged on two symmetrical walls of the elevator shaft, and a locking plate 4 is arranged on the surface of the elevator guide rail 14, the locking plate 4 is in a "U"-shaped plate structure, the two side plates of the locking plate 4 are against the surface of the elevator guide rail 14, and a screw sleeve 3 is fixed on the surface of the locking plate 4, and a screw rod 2 is arranged on the two symmetrical end surfaces of the rotating rod 1, and the screw sleeve 3 is sleeved on the rod body of the screw rod 2, and the thread directions of the two groups of screw rods 2 are opposite, and a fixed wedge block 10 is fixed to the top of the locking plate 4, and an inclined surface is provided on the top of the fixed wedge block 10, and a moving wedge block 11 is slidably connected to the inclined surface of the fixed wedge block 10, and the surface of the moving wedge block 11 in contact with the fixed wedge block 10 is also an inclined surface, and a pressure plate 9 is fixed to the top of the moving wedge block 11.

[0019] In actual use, in the initial state, one end of the screw sleeve 3 is against the surface of the rotating rod 1, so that the whole device is relatively small and convenient to carry. When the device needs to be used to tighten the elevator guide rail slider, the rotating rod 1 is rotated, and the rotating rod 1 drives the screw rods 2 on both sides to rotate, and the screw sleeve 3 does not rotate with the rotating rod 1. Under the action of the threaded connection between the screw rod 2 and the screw sleeve 3, the two sets of screw sleeves 3 and the locking plates 4 move away from each other until the two sets of locking plates 4 are against and pressed against the surface of the elevator guide rail 14. At this time, the pressure plate 9 also moves with the locking plate 4 and rests on the surface of the elevator guide rail 14. When the elevator tends to fall, the elevator slider generates downward pressure on the two sets of pressure plates 9. The downward pressure borne by the pressure plate 9 is transmitted to the moving wedge block 11, and the moving wedge block 11 is transmitted to the fixed wedge block 10. Under the action of the inclined surfaces of the fixed wedge block 10 and the moving wedge block 11, the force of the moving wedge block 11 on the fixed wedge block 10 is decomposed into two components, one vertically downward and the other away from the elevator guide rail 14. The reaction force of the fixed wedge block 10 on the movable wedge block 11 is also divided into two forces, one of which is used to support the pressure plate 9 vertically upward, and the other is horizontally directed toward the elevator guide rail 14, so that the friction between the pressure plate 9 and the elevator guide rail 14 is increased, thereby further supporting the pressure plate 9 and preventing the pressure plate 9 from rotating lateral to prevent the pressure plate 9 from falling off the elevator guide rail 14. In addition, under the threaded connection between the screw 2 and the screw sleeve 3, the two sets of screws 2 push the two sets of screw sleeves 3 to both sides, so that As a result, both sets of screw sleeves 3 are subjected to a force toward the elevator guide rail 14, and the force exerted on the screw sleeve 3 is transmitted to the locking plate 4. This force, on the one hand, increases the friction between the locking plate 4 and the elevator guide rail 14, and on the other hand, prevents the locking plate 4 from lateral rotation, thereby preventing the locking plate 4 from falling off the elevator guide rail 14. As a result, the entire elevator guide rail slider locking mechanism acts on the guide rail sliders on both sides of the elevator at the same time, thereby preventing the mechanism from lateral rotation and causing the mechanism to fall off the elevator guide rail 14.

[0020] Embodiment 2

[0021] On the basis of Example 1, in order to prevent the screw sleeve 3 from rotating with the rotating rod 1, a guide block 7 is arranged under the rotating rod 1, and a lower connecting block 5 is fixed to the bottom end of the locking plate 4. One end of a guide rod 6 is fixed to the surface of the lower connecting block 5, and the other end of the guide rod 6 is movably inserted in a through hole opened on the surface of the guide block 7. Two groups of guide rods 6 are arranged, and the axes of the two groups of guide rods 6 are not on the same axis and are symmetrically distributed about the guide block 7.

[0022] Before screwing the rotating rod 1, first hold the guide block 7. When the rotating rod 1 rotates, the guide block 7 cannot rotate around the rotating rod 1, and the guide rod 6 will not rotate either, and then the lower connecting block 5 will not rotate either, so that the locking plate 4 will not rotate and the screw sleeve 3 will not rotate. At the same time, when the screw sleeve 3 moves away from the rotating rod 1, the end of the guide rod 6 close to the lower connecting block 5 extends a longer distance from the surface of the guide block 7 and will not hinder the movement of the screw sleeve 3.

[0023] Embodiment 3

[0024] On the basis of Example 2, in order to prevent the pressure plate 9 from falling, an upper connecting block 8 is fixed to the top of the locking plate 4. The upper connecting block 8 is a rectangular annular block structure. The fixed wedge block 10 and the movable wedge block 11 are both arranged in the inner ring of the upper connecting block 8. A movable limit block 12 is fixed on the surface of the movable wedge block 11, and a fixed limit block 13 is fixed on the inner ring surface of the upper connecting block 8.

[0025] The movable wedge block 11 fixed to the bottom end of the pressure plate 9 is arranged in the inner ring of the upper connecting block 8, and a fixed limit block 13 is fixed on the inner ring surface of the upper connecting block 8. A movable limit block 12 is fixed on the surface of the movable wedge block 11. The fixed limit block 13 is stuck above the movable limit block 12, so that the movable limit block 12 cannot fall off from the upper connecting block 8, thereby preventing the pressure plate 9 from falling.

[0026] Embodiment 4

[0027] On the basis of the third embodiment, in order to increase the friction between the locking plate 4 and the elevator guide rail 14 , a force rod insertion groove 15 is provided on the surface of the rotating rod 1 , and one end of the force rod is movably inserted into the force rod insertion groove 15 .

[0028] After the two sets of locking plates 4 have been pressed against the surfaces of the two sets of elevator guide rails 14, the force rod can be inserted into the force rod insertion groove 15. The force rod can be used to continue to twist the rotating rod 1 to press the locking plates 4 more tightly against the surfaces of the elevator guide rails 14, thereby increasing the friction between the screw sleeve 3 and the elevator guide rail 14.

[0029] When actually using, in the initial state, one end of the screw sleeve 3 is against the surface of the rotating rod 1, so that the whole device is relatively small and convenient to carry. When the device needs to be used to tighten the elevator guide rail slider, the rotating rod 1 is rotated, and the rotating rod 1 drives the screw rods 2 on both sides to rotate, and at the same time, the screw sleeve 3 does not rotate with the rotating rod 1. Then, under the action of the threaded connection between the screw rod 2 and the screw sleeve 3, the two groups of screw sleeves 3 and the locking plates 4 move away from each other until the two groups of locking plates 4 are against and pressed against the surface of the elevator guide rail 14. At this time, the pressure plate 9 also moves with the locking plate 4 and is against the surface of the elevator guide rail 14. When the elevator has a tendency to fall, the elevator slider generates downward pressure on the two groups of pressure plates 9, and the downward pressure borne by the pressure plates 9 is transmitted The movable wedge block 11 is passed to the fixed wedge block 10. Under the action of the inclined surfaces of the fixed wedge block 10 and the movable wedge block 11, the force of the movable wedge block 11 on the fixed wedge block 10 is decomposed into two components, one vertically downward and the other in the direction away from the elevator guide rail 14. The corresponding reaction force of the fixed wedge block 10 on the movable wedge block 11 is also divided into two forces, one vertically upward to support the pressure plate 9, and the other horizontally toward the elevator guide rail 14, so that the friction between the pressure plate 9 and the elevator guide rail 14 is increased, thereby further supporting the pressure plate 9 and preventing the pressure plate 9 from lateral rotation at the same time, and preventing the pressure plate 9 from falling off the elevator guide rail 14. In addition, between the screw 2 and the screw sleeve Under the action of the threaded connection of 3, the two groups of screw rods 2 push the two groups of screw sleeves 3 to both sides, so that the two groups of screw sleeves 3 are subjected to the force toward the elevator guide rail 14, and the force exerted on the screw sleeves 3 is transmitted to the locking plate 4. This force increases the friction between the locking plate 4 and the elevator guide rail 14 on the one hand, and also prevents the locking plate 4 from rotating sideways on the other hand, thereby preventing the locking plate 4 from falling off the elevator guide rail 14, so that the entire elevator guide rail slider locking mechanism acts on the guide rail sliders on both sides of the elevator at the same time, preventing the mechanism from rotating sideways and causing the mechanism to fall off the elevator guide rail 14; before screwing the rotating rod 1, first hold the guide block 7. When the rotating rod 1 rotates, the guide block 7 cannot rotate around the rotating rod 1, then the guide The rod 6 will not rotate, and the lower connecting block 5 will not rotate, so that the locking plate 4 will not rotate, and the screw sleeve 3 will not rotate. At the same time, when the screw sleeve 3 moves in the direction away from the rotating rod 1, the end of the guide rod 6 close to the lower connecting block 5 extends a longer distance from the surface of the guide block 7, and will not hinder the movement of the screw sleeve 3; the movable wedge block 11 fixed to the bottom end of the pressure plate 9 is arranged in the inner ring of the upper connecting block 8, and a fixed limit block 13 is fixed on the inner ring surface of the upper connecting block 8, and a movable limit block 12 is fixed on the surface of the movable wedge block 11, and the fixed limit block 13 is stuck on the upper part of the movable limit block 12, so that the movable limit block 12 cannot be disengaged from the upper connecting block 8, thereby preventing the pressure plate 9 from falling off;After the two sets of locking plates 4 have been pressed against the surfaces of the two sets of elevator guide rails 14, the force rod can be inserted into the force rod insertion groove 15, and the force rod is used to continue to twist the rotating rod 1 to make the locking plates 4 more tightly pressed against the surfaces of the elevator guide rails 14, thereby increasing the friction between the screw sleeve 3 and the elevator guide rails 14.

[0030] 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 guide rail slider locking mechanism, comprising: A rotating rod (1) and an elevator guide rail (14), wherein the elevator guide rail (14) is provided with two groups, and the two groups of elevator guide rails (14) are provided on two symmetrical walls of the elevator shaft, characterized in that: a locking plate (4) is provided on the surface of the elevator guide rail (14), the locking plate (4) is a "U"-shaped plate structure, the two side plates of the locking plate (4) are against the surface of the elevator guide rail (14), a screw sleeve (3) is fixed on the surface of the locking plate (4), and the rotating rod (1) is provided with a screw sleeve (3) on the two symmetrical end surfaces. A screw rod (2) is provided, a screw sleeve (3) is sleeved on the rod body of the screw rod (2), the screw threads of the two groups of screw rods (2) are in opposite directions, a fixed wedge block (10) is fixed at the top end of the locking plate (4), an inclined surface is provided at the top end of the fixed wedge block (10), a movable wedge block (11) is slidably connected to the inclined surface of the fixed wedge block (10), the surface where the movable wedge block (11) contacts the fixed wedge block (10) is also an inclined surface, and a pressure plate (9) is fixed at the top end of the movable wedge block (11).

2. An elevator guide rail slider locking mechanism according to claim 1, characterized in that: A guide block (7) is arranged below the rotating rod (1), a lower connecting block (5) is fixed to the bottom end of the locking plate (4), one end of a guide rod (6) is fixed to the surface of the lower connecting block (5), and the other end of the guide rod (6) is movably inserted into a through hole provided on the surface of the guide block (7), and two groups of guide rods (6) are arranged, and the axes of the two groups of guide rods (6) are not on the same axis and are symmetrically distributed about the guide block (7).

3. The elevator guide rail slider locking mechanism according to claim 1, characterized in that: An upper connecting block (8) is fixed to the top of the locking plate (4), and the upper connecting block (8) is in a rectangular ring-shaped block structure. The fixed wedge block (10) and the movable wedge block (11) are both arranged in the inner ring of the upper connecting block (8). A movable limit block (12) is fixed on the surface of the movable wedge block (11), and a fixed limit block (13) is fixed on the inner ring surface of the upper connecting block (8).

4. The elevator guide rail slider locking mechanism according to claim 1, characterized in that: A force rod insertion groove (15) is provided on the surface of the rotating rod (1), and one end of the force rod is movably inserted into the force rod insertion groove (15).

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