Overhead passenger protection device

Abstract

The utility model discloses an overhead passenger protection device, which relates to the technical field of overhead passenger protection appliances and comprises two limiting plates, fixing blocks are mounted at the lower ends of the close surfaces of the two limiting plates, a balance block is fixedly connected between the two fixing blocks, and the middles of the lower ends of the two limiting plates are rotatably connected with the fixing plates through screws and nuts. Through the cooperation of the first Hall sensor and the second Hall sensor, the first Hall sensor and the second Hall sensor can be compared with a set speed after speed comparison, and the safety of the whole overhead man-riding device is improved; by means of the U-shaped fixing frame and the handle, the daily maintenance speed of the overhead man-riding device can be increased conveniently, and the risk that the Hall sensor is damaged due to errors of manual operation and people are hurt due to the fact that the rope supporting wheel is touched and rotated is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to overhead passenger protection appliance technical field especially, relates to an overhead passenger protection device. BACKGROUND

[0002] Overhead passenger device (monkey car) is widely used in coal mine personnel transportation, speed protection is an important protection device of monkey car, the running speed of steel wire rope is monitored at any time, when the running speed of steel wire rope is higher (or lower) than the set running speed by 15%, the control box immediately gives a stop signal, the monkey car stops, and "overspeed protection" or "underspeed protection" is displayed, the speed protection principle is that the rope supporting wheel is closely attached to the steel wire rope, the rotation speed of the rope supporting wheel is same with the running speed of the steel wire rope, the rotation speed of the rope supporting wheel is detected by the speed sensor to represent the running speed of the steel wire rope, in order to ensure that the monkey car protection is complete and reliable, the speed protection needs to be tested once a day, the existing test method has two kinds: one is that in the monkey car parking state, the fixing bolt is disassembled, the height of the speed measuring rope supporting wheel is adjusted to be low, the rope supporting wheel is separated from the steel wire rope, then the monkey car is started, the rotation speed of the rope supporting wheel is manually adjusted to be greater than (or less than) the set running speed, the monkey car "overspeed" or "underspeed" stops. Two is that an insulating plate is inserted between the speed sensor and the detection wheel, so that the speed sensor cannot detect the rotation speed, the monkey car "underspeed" stops, the existing speed protection test needs a long time to disassemble, restore and install the speed measuring rope supporting wheel, and the operation is not convenient, and the normal operation of the monkey car is affected during the test; the speed sensor is damaged or the person is hurt by touching the rotating rope supporting wheel during the test, therefore, the above problems need to be improved and handled. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at solving the shortcomings in the prior art, and provides an overhead passenger protection device.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an overhead passenger protection device, including two limit plates, the proximal surface lower end of two limit plates is installed with fixed block, two fixed blocks are fixedly connected with balance block between, and the lower middle part of two limit plates is rotatably connected with fixed plate through screw rod and nut;Two rotating shafts are penetrated in the front and rear ends of two fixed blocks, the second rotating wheel and the first rotating wheel are rotatably connected with the rotating shafts at the front and rear ends, the first rotating wheel and the second rotating wheel are concave structures, one side of the first rotating wheel is equipped with the first hall sensor, and the first hall sensor is installed on the top surface rear end of one side fixed block.

[0005] Preferably, two limit plates are provided with arc-shaped sliding grooves at the lower ends of the front and rear sides, the arc-shaped sliding grooves are symmetrically arranged at the front and rear ends, and the two ends of the rotating shafts at the front and rear ends are arranged in the arc-shaped sliding grooves.

[0006] Preferably, the front end of the rotating shaft is rotatably connected with locking plates, the two locking plates are arranged between the two limiting plates, and the middle portions of the two locking plates are fixedly connected through bolts.

[0007] Preferably, a third rotating wheel is rotatably connected between the two locking plates at the front end, a second Hall sensor is arranged on the other side of the third rotating wheel, and the second Hall sensor is mounted on the outer side surface of the front end of the other locking plate.

[0008] Preferably, a U-shaped fixing frame is fixedly connected between the two limiting plates at the front end, the U-shaped fixing frame is arranged below the fixed block, a screw rod is vertically and screwedly connected to the middle portion of the U-shaped fixing frame, a handle is fixedly connected to the lower end of the screw rod, and the upper end of the screw rod is slidably connected with the balancing block.

[0009] Compared with the prior art, the utility model has the advantages that: through the cooperation of the first Hall sensor and the second Hall sensor, the speed comparison between the first and second Hall sensors is formed, and the safety of the whole monkey car device is improved; through the U-shaped fixing frame and the handle, the speed of daily maintenance of the monkey car is improved, and the damage of the Hall sensor caused by human operation and the risk of hurting people caused by touching the rotating rope wheel are reduced.

[0010] BRIEF DESCRIPTION OF DRAWINGS

[0011] The accompanying drawings, which are included to provide a further understanding of the utility model, form a part of the application and schematically illustrate the embodiments of the utility model and the description thereof, and do not constitute improper limitations on the utility model. In the drawings:

[0012] Figure 1 It is an overall structure schematic view of the utility model;

[0013] Figure 2 It is an overall half-section schematic view of the utility model;

[0014] Figure 3 It is a local structure section view of the utility model;

[0015] Figure 4 It is a U-shaped fixing frame and handle schematic view of the utility model; Figure 3 It is an enlarged schematic view of the structure of site A;

[0016] Figure 5 It is a local structure schematic view of the utility model;

[0017] Figure 6 It is a partial structure schematic view of the utility model;

[0018] Figure 7 It is a U-shaped fixing frame and handle schematic view of the utility model;

[0019] In the figure, the serial number: 1, limit plate; 2, fixed block; 3, locking plate; 4, second Hall sensor; 5, third rotating wheel; 6, first rotating wheel; 7, balance block; 8, U-shaped fixing frame; 9, handle; 10, first Hall sensor; 11, second rotating wheel. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0021] Embodiment: refer to Figures 1-7 The utility model discloses an overhead passenger protection device, including two limit plates 1, through limit plate 1 is used to fix the internal main mechanism and still plays to be used to hang the whole product, the similar face lower end of two limit plates 1 is installed with fixed block 2, through fixed block 2, it is convenient for subsequent installation and fixation first rotating wheel 6 and second rotating wheel 11, the balance block 7 is fixedly connected between two fixed blocks 2, through the balance block 7, it is convenient for connecting fixed block 2 and makes it integration, and makes the base for subsequent U-shaped fixing frame 8 and handle 9's fixation, movement, and the lower middle part of two limit plates 1 is rotatably connected with fixed block 2 through screw rod and nut, the front and rear ends of two fixed blocks 2 are all penetrated by rotating shaft, and the front and rear ends rotating shaft rotatably connects second rotating wheel 11 and first rotating wheel 6, and first rotating wheel 6 and second rotating wheel 11 are concave structure, one side of first rotating wheel 6 is equipped with first Hall sensor 10, first Hall sensor 10 is installed at the top surface rear end of one side fixed block 2, and through first Hall sensor 10, it is convenient for detecting the speed of first rotating wheel 6.

[0022] In the utility model, the lower end of two limit plates 1 is provided with arc-shaped sliding slot in front and back, and the front and rear arc-shaped sliding slots are symmetric about the center, and the two ends of the front and rear rotating shafts are placed in the arc-shaped sliding slots, the two ends of the front and rear rotating shafts rotatably connect locking plate 3, two locking plates 3 are placed between two limit plates 1, and the middle part of two locking plates 3 is fixedly connected through bolt, the front and rear rotating shafts rotatably connect third rotating wheel 5 between two locking plates 3, the other side of third rotating wheel 5 is equipped with second Hall sensor 4, and through second Hall sensor 4, it is convenient for detecting second rotating wheel 11, second Hall sensor 4 is installed at the front end of the other side locking plate 3, and U-shaped fixing frame 8 is fixedly connected between the front and rear ends of two limit plates 1, and U-shaped fixing frame 8 is placed at the lower end of fixed block 2, and the middle part of U-shaped fixing frame 8 is vertically screwedly connected with screw rod, and the lower end of screw rod is fixedly connected with handle 9, and through handle 9, it is convenient for improving the speed of daily maintenance, and the upper end of screw rod is slidably hinged with balance block 7.

[0023] Working principle: in the utility model for use, lift the third runner 5, put the rope through the third runner 5 and the second runner 11 and the first runner 6, lower the third runner 5, because the first hall sensor 10 detects the speed of the first runner 6 and understands the speed of the rope, the second hall sensor 4 detects the speed of the third runner 5 and understands the speed of the rope, then the long time operation process of runner operation, the speed error caused by the bearing aging and falling off or the bending of the rotating shaft connected with the runner caused by shear force may appear, install the first hall sensor 10 and the second hall sensor 4, compare the speed first, if the comparison value of the two sensors is too large or too small, the "overspeed" protection and "under speed" protection of the monkey car will be caused, rotate the handle 9 to make the second runner 11 lift the first runner 6 to lower during daily maintenance, the first hall sensor 10 cannot detect the speed, compare the value with the second hall sensor 4, if the difference is 15%, stop the rope rotation, also can manually rotate the first runner 6 and cause the "overspeed" protection and "under speed" protection of the monkey car.

[0024] The above is only the preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art in the technical range disclosed by the utility model, according to the technical scheme and the utility model concept of the utility model, equivalent replacement or change, should be covered in the protection scope of the utility model.

Claims

1. An overhead passenger protection device comprising two limit plates (1), characterized in that: Two lower ends of the limiting plates (1) are provided with fixed blocks (2), the fixed blocks (2) are fixedly connected between two limiting plates (1), and the lower ends of the limiting plates (1) are rotationally connected with the fixed blocks (2) through screws and nuts; rotating shafts are arranged in the front and rear ends of the fixed blocks (2), and the rotating shafts are rotationally connected with second rotating wheels (11) and first rotating wheels (6); The first rotating wheels (6) and the second rotating wheels (11) are concave structures, one side of the first rotating wheels (6) is provided with a first Hall sensor (10), arc-shaped sliding grooves are formed in the lower ends of the limiting plates (1), the rotating shafts are rotationally connected with locking plates (3) at the two ends of the front ends, the locking plates (3) are rotationally connected with third rotating wheels (5) at the front ends between the two locking plates (3), and the other side of the third rotating wheels (5) is provided with a second Hall sensor (4).

2. An aerial passenger protection device according to claim 1, characterized in that: The first Hall sensor (10) is arranged on the top surface of the rear end of the fixed block (2).

3. An aerial passenger protection device according to claim 2, wherein: The arc-shaped sliding grooves are symmetrically arranged at the centers of the front and rear ends, and the rotating shafts are arranged in the arc-shaped sliding grooves at the two ends of the front and rear ends.

4. An aerial passenger protection device according to claim 2, wherein: The locking plates (3) are arranged between the limiting plates (1), and the locking plates (3) are fixedly connected through bolts at the middle portions.

5. An aerial passenger protection device according to claim 4, wherein: The second Hall sensor (4) is arranged on the front end of the outer side surface of the locking plate (3).

6. An aerial passenger protection device according to claim 4, characterized in that: The front ends of the limiting plates (1) are fixedly connected with N-shaped fixed frames (8), the N-shaped fixed frames (8) are arranged at the lower ends of the fixed blocks (2), screw rods are vertically and screwedly connected to the middle portions of the N-shaped fixed frames (8), handles (9) are fixedly connected to the lower ends of the screw rods, and the upper ends of the screw rods are slidingly connected with the balancing blocks (7).

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