Improved structure of hydraulic safety door of mine vertical shaft

Abstract

The utility model discloses a mine vertical shaft hydraulic safety door transformation structure which comprises a vertical shaft frame, the surface of the vertical shaft frame is rotationally connected with an oil hydraulic cylinder through a rotating shaft, the surface of the vertical shaft frame is rotationally connected with two symmetrically-arranged transverse rods through a rotating shaft, and a connecting rod is jointly installed between the two transverse rods. A half-threaded rod is arranged on the front side of the connecting rod in a penetrating mode, the rear end of the half-threaded rod penetrates through the connecting rod and the cross rod, and two symmetrically-arranged circular plates are fixedly connected to the surface of the half-threaded rod. The infrared sensor senses the vertical shaft elevator and transmits a signal to the control box, then the control box controls the oil hydraulic cylinder to drive the transverse rod to rotate clockwise, and then the transverse rod rotates and folds the connecting rod, so that the vertical shaft safety door is opened, namely the hydraulic cylinder is controlled by the sensor to drive the safety door to be opened. The convenience of opening and closing of the safety door can be effectively improved, and the service life of the hydraulic cylinder in a humid environment is long.

Description

Technical Field

[0001] The utility model belongs to the technical field of mine shaft safety doors, in particular to a mine shaft hydraulic safety door reconstruction structure. Background Art

[0002] Mine shafts are equipped with safety doors. Workers and mine cars often enter and exit the shaft entrance. Since the shaft entrance is a high-altitude falling danger site, if the safety door does not function properly, workers and mine cars may fall into the shaft when entering and exiting the cage. Most of the existing shaft safety doors are manually opened and closed, and a few are motor-operated.

[0003] When the cage runs to the wellhead position, it is rather laborious to open the safety door manually. Manually operating the motor to control the opening and closing of the safety door also requires manual operation, which is inconvenient. In addition, the humidity at the wellhead is high, which may cause the motor of the safety door to fail. Therefore, a mine shaft hydraulic safety door modification structure is needed. The hydraulic cylinder can be controlled by a sensor to drive the safety door to open, which can effectively improve the convenience of the safety door switch. The service life of the hydraulic cylinder is longer in a humid environment. Utility Model Content

[0004] The purpose of the utility model is to provide a mine shaft hydraulic safety door modification structure, which controls the hydraulic cylinder to drive the safety door to open by a sensor, can effectively improve the convenience of the safety door switch, and the service life of the hydraulic cylinder in a humid environment is longer, so as to solve the technical problems raised by the above background technology.

[0005] The technical solution of the utility model for solving the above technical problems is as follows: a mine shaft hydraulic safety door reconstruction structure, which includes a shaft frame: the surface of the shaft frame is rotatably connected to a hydraulic cylinder through a rotating shaft, the surface of the shaft frame is rotatably connected to two symmetrically arranged cross bars through a rotating shaft, a connecting rod is commonly installed between the two cross bars, a semi-threaded rod is penetrated on the front side of the connecting rod, the rear end of the semi-threaded rod penetrates the connecting rod and the cross bar, two symmetrically arranged circular plates are fixedly connected on the surface of the semi-threaded rod, a nut block is threadedly connected on the surface of the semi-threaded rod, two symmetrically arranged L-shaped blocks are welded on the front side of the shaft frame, an infrared sensor and a control box are fixedly installed on the left side of the shaft frame by bolts, and the hydraulic cylinder and the infrared sensor are electrically connected to the control box through wires.

[0006] Preferably, the end of the hydraulic cylinder is rotatably connected to the cross bar located on the upper side via a rotating shaft.

[0007] Preferably, the connecting rod is rotationally connected to the semi-threaded rod, and the two circular plates are respectively located on the front and rear sides of the connecting rod.

[0008] Preferably, the inner wall of the L-shaped block is in contact with the cross bar, and a rubber pad is adhered to the bottom of the inner cavity of the L-shaped block.

[0009] Preferably, an arc-shaped slot block is integrally formed at the bottom of the cross bar located on the upper side, a clamping rod is welded on the front side of the vertical shaft frame, the front end of the clamping rod penetrates into the inner cavity of the arc-shaped slot block, and a rotating sleeve is rotatably connected to the surface of the clamping rod, and the surface of the rotating sleeve fits against the inner wall of the arc-shaped slot block.

[0010] 1. The beneficial effects of the utility model are as follows: the utility model senses the shaft elevator through the infrared sensor and transmits the signal to the control box, and then the control box controls the oil hydraulic cylinder to drive the cross bar to rotate clockwise, and then the cross bar rotates and retracts the connecting rod, so that the shaft safety door can be opened, and the sensor controls the hydraulic cylinder to drive the safety door to open, which can effectively improve the convenience of the safety door switch, and the service life of the hydraulic cylinder in a humid environment is longer.

[0011] 2. The utility model protects the inner wall of the L-shaped block by setting the rubber pad, thereby avoiding the occurrence of abnormal noise when the cross bar directly collides with the L-shaped block.

[0012] 3. The utility model limits the rotation of the upper cross bar by using the arc-shaped slot block and the clamping rod, thereby preventing the cross bar from shaking.

[0013] 4. The utility model reduces the friction between the clamping rod and the inner wall of the arc-shaped groove block by setting the rotating sleeve, thus avoiding the occurrence of large wear when the two rotate relative to each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] in:

[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model;

[0016] Figure 2 This is an embodiment of the utility model Figure 1 A partial enlarged view of point A;

[0017] Figure 3 This is a three-dimensional schematic diagram of an L-shaped block and a rubber pad in one embodiment of the utility model;

[0018] Figure 4 It is a three-dimensional disassembled schematic diagram of a semi-threaded rod and a nut block according to an embodiment of the utility model.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1. Shaft frame, 2. Hydraulic cylinder, 3. Cross bar, 4. Connecting rod, 5. Semi-threaded rod, 6. Round plate, 7. Nut block, 8. Elastic gasket, 9. L-shaped block, 10. Rubber pad, 11. Arc groove block, 12. Clamp rod, 13. Rotating sleeve, 14. Infrared sensor, 15. Control box. DETAILED DESCRIPTION

[0021] Hereinafter, an embodiment of the mine shaft hydraulic safety door reconstruction structure of the present utility model will be described with reference to the accompanying drawings.

[0022] Embodiment 1:

[0023] Figure 1-4 The utility model shows a mine shaft hydraulic safety door reconstruction structure of an embodiment of the utility model, which includes a shaft frame 1: the surface of the shaft frame 1 is rotatably connected to a hydraulic cylinder 2 through a rotating shaft, the surface of the shaft frame 1 is rotatably connected to two symmetrically arranged cross bars 3 through a rotating shaft, the end of the hydraulic cylinder 2 is rotatably connected to the cross bar 3 located on the upper side through a rotating shaft, a connecting rod 4 is installed between the two cross bars 3, a semi-threaded rod 5 is penetrated on the front side of the connecting rod 4, the rear end of the semi-threaded rod 5 penetrates the connecting rod 4 and the cross bar 3, the surface of the semi-threaded rod 5 is fixedly connected to two symmetrically arranged circular plates 6, and the connecting rod 4 is rotatably connected to the semi-threaded rod 5. , two circular plates 6 are respectively located at the front and rear sides of the connecting rod 4, the surface of the semi-threaded rod 5 is threadedly connected with a nut block 7, and two symmetrically arranged L-shaped blocks 9 are welded on the front side of the vertical shaft frame 1. The inner wall of the L-shaped block 9 fits with the cross bar 3, and a rubber pad 10 is adhered to the bottom of the inner cavity of the L-shaped block 9. Through the setting of the rubber pad 10, the inner wall of the L-shaped block 9 is padded to avoid abnormal noise when the cross bar 3 directly collides with the L-shaped block 9. An infrared sensor 14 and a control box 15 are fixed on the left side of the vertical shaft frame 1 by bolts, and the hydraulic cylinder 2 and the infrared sensor 14 are electrically connected to the control box 15 through wires.

[0024] Embodiment 2:

[0025] Figure 1-4The utility model shows a mine shaft hydraulic safety door reconstruction structure of an embodiment of the utility model, which includes a shaft frame 1: the surface of the shaft frame 1 is rotatably connected to a hydraulic cylinder 2 through a rotating shaft, the surface of the shaft frame 1 is rotatably connected to two symmetrically arranged cross bars 3 through a rotating shaft, a connecting rod 4 is installed between the two cross bars 3, a semi-threaded rod 5 is penetrated on the front side of the connecting rod 4, the rear end of the semi-threaded rod 5 penetrates the connecting rod 4 and the cross bar 3, two symmetrically arranged circular plates 6 are fixedly connected to the surface of the semi-threaded rod 5, a nut block 7 is threadedly connected to the surface of the semi-threaded rod 5, two symmetrically arranged L-shaped blocks 9 are welded on the front side of the shaft frame 1, an arc-shaped slot block 11 is integrally formed at the bottom of the cross bar 3 on the upper side, and the front side of the shaft frame 1 A clamping rod 12 is welded, and the front end of the clamping rod 12 passes through the inner cavity of the arc groove block 11. Through the coordinated use of the arc groove block 11 and the clamping rod 12, the rotation of the upper cross bar 3 is limited to avoid the shaking of the cross bar 3. The surface of the clamping rod 12 is rotatably connected with a rotating sleeve 13, and the surface of the rotating sleeve 13 fits with the inner wall of the arc groove block 11. Through the setting of the rotating sleeve 13, the friction between the clamping rod 12 and the inner wall of the arc groove block 11 is reduced, avoiding the occurrence of large wear when the two rotate relative to each other. The left side of the vertical shaft frame 1 is fixed with an infrared sensor 14 and a control box 15 by bolts, and the hydraulic cylinder 2 and the infrared sensor 14 are electrically connected to the control box 15 through wires.

[0026] Working principle: When the utility model is used, the user sets the infrared sensor 14. When the shaft elevator rises to its position, the infrared sensor 14 transmits a signal to the control box 15. Then the control box 15 controls the oil hydraulic cylinder 2 to drive the upper cross bar 3 to rotate clockwise. At this moment, under the connecting action of the connecting rod 4, the lower cross bar 3 also rotates clockwise, and then the two cross bars 3 rotate and bring the connecting rod 4 together, so that the shaft safety door can be opened. If the connecting rod 4 is damaged and deformed, the semi-threaded rod 5 and the connecting rod 4 can be removed from the cross bar 3 through the threaded connection between the nut block 7 and the semi-threaded rod 5, which is convenient for replacing or repairing the connecting rod 4 and improving the convenience during maintenance. Among them, the setting of the elastic gasket 8 can increase the friction of the nut block 7, avoid the loosening of the nut block 7 due to external force vibration, realize the control of the hydraulic cylinder by the sensor to drive the safety door to open, can effectively improve the convenience of the safety door switch, and the service life of the hydraulic cylinder in a humid environment is longer.

[0027] To sum up: the modified structure of the hydraulic safety door of the mine shaft senses the shaft elevator through the infrared sensor 14 and transmits the signal to the control box 15. Then the control box 15 controls the oil hydraulic cylinder 2 to drive the cross bar 3 to rotate clockwise, and then the cross bar 3 rotates and retracts the connecting rod 4, so that the shaft safety door can be opened. The sensor controls the hydraulic cylinder to drive the safety door to open, which can effectively improve the convenience of the safety door switch and prolong the service life of the hydraulic cylinder in a humid environment.

Claims

1. A mine shaft hydraulic safety door reconstruction structure, characterized in that: The utility model comprises a shaft frame (1): the surface of the shaft frame (1) is rotatably connected to a hydraulic cylinder (2) via a rotating shaft, the surface of the shaft frame (1) is rotatably connected to two symmetrically arranged cross bars (3), a connecting rod (4) is installed between the two cross bars (3), a semi-threaded rod (5) is penetrated through the front side of the connecting rod (4), the rear end of the semi-threaded rod (5) penetrates the connecting rod (4) and the cross bar (3), the surface of the semi-threaded rod (5) is fixedly connected to two symmetrically arranged circular plates (6), the surface of the semi-threaded rod (5) is threadedly connected to a nut block (7), the front side of the shaft frame (1) is welded with two symmetrically arranged L-shaped blocks (9), an infrared sensor (14) and a control box (15) are fixedly installed on the left side of the shaft frame (1) via bolts, and the hydraulic cylinder (2) and the infrared sensor (14) are electrically connected to the control box (15) via wires.

2. A mine shaft hydraulic safety door reconstruction structure according to claim 1, characterized in that: The end of the oil pressure cylinder (2) is rotationally connected to the cross bar (3) located on the upper side via a rotating shaft.

3. A mine shaft hydraulic safety door reconstruction structure according to claim 2, characterized in that: The connecting rod (4) is rotatably connected to the semi-threaded rod (5), and the two circular plates (6) are respectively located at the front and rear sides of the connecting rod (4).

4. A mine shaft hydraulic safety door reconstruction structure according to claim 3, characterized in that: The inner wall of the L-shaped block (9) is in contact with the crossbar (3), and a rubber pad (10) is adhered to the bottom of the inner cavity of the L-shaped block (9).

5. A mine shaft hydraulic safety door reconstruction structure according to claim 4, characterized in that: An arc-shaped slot block (11) is integrally formed at the bottom of the cross bar (3) located on the upper side, a clamping rod (12) is welded to the front side of the shaft frame (1), the front end of the clamping rod (12) penetrates into the inner cavity of the arc-shaped slot block (11), and a rotating sleeve (13) is rotatably connected to the surface of the clamping rod (12), and the surface of the rotating sleeve (13) is in contact with the inner wall of the arc-shaped slot block (11).

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