Heavy-duty car stopper used in mine shaft mouth

Abstract

The application provides a heavy-duty car stopper used in a mine shaft mouth, which comprises two sets of limiters, is installed in a mine shaft mouth position in a double-leaf door mode, and is set to be opened in one direction, wherein the opening direction of the two sets of limiters is opposite to the driving direction of the vehicle. The car stopper designed in the double-leaf door mode and capable of being opened in one direction, each main structure of which is a heavy-duty component and is reinforced, has simple assembly structure, high strength and strong anti-impact capacity, and can stop the vehicle even if the vehicle is subjected to rapid impact, so as to avoid the accident that the mine car crashes into the shaft hole.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mine safety management, and particularly relates to a heavy-duty car stopper used at a mine shaft mouth. BACKGROUND

[0002] With the continuous progress of technology, the load capacity and volume of the cage of the auxiliary shaft hoisting system of a mine enterprise are also increasing, and the driving in and out of the trackless rubber-tyred vehicle has become a common practice, and the vehicle loading material and the ore fines are also lifted, which not only saves the time of secondary loading of the material, but also saves the cost. However, due to some reasons, such as the performance decline of the vehicle and the sudden failure of the brake, or actual misoperation, the vehicle cannot be slowed down when driving to the shaft mouth, and if the cage is not in the terminal section, a major safety accident is likely to occur. As we all know, the trackless flat car and the car skin in the underground reach the shaft mouth, and the track is provided with a car stopper and is in a closed position. However, the impact force of the trackless rubber-tyred vehicle is greater, and the conventional shaft mouth safety door and other safety facilities cannot achieve the safety effect of slowing down or stopping the vehicle. SUMMARY

[0003] To solve the above problems, the present application aims to provide a heavy-duty car stopper used at a mine shaft mouth, which is designed to be a double-leaf door type and can only be opened in one direction, so that the vehicle can be stopped even if it is subjected to a rapid impact, so as to avoid the accident of the mine car crashing into the shaft.

[0004] To achieve the above purpose, the technical scheme of the present application is as follows:

[0005] A heavy-duty car stopper used at a mine shaft mouth, comprising two sets of limiters, which are installed in a double-leaf door type at the mine shaft mouth, and are both set to be opened in one direction, and the opening direction of the two sets of limiters is opposite to the driving direction of the vehicle.

[0006] Further, the limiter comprises a fixed base, a fixed support rod, a rotating sleeve, a heavy-duty door, a heavy-duty bolt, a pit slot and a limiting block, the fixed base is fixedly installed on the ground at the mine shaft mouth, the fixed support rod is installed on the fixed base, one side of the heavy-duty door is hinged to the fixed support rod through two rotating sleeves, the fixed base is provided with a limiting block, the limiting block is located behind the heavy-duty door for limiting, a heavy-duty bolt is arranged at the middle position of the other side of the heavy-duty door, and a pit slot corresponding to the heavy-duty bolt is arranged on the ground at the mine shaft mouth.

[0007] Further, the heavy door is welded with three layers of rib plates from top to bottom, holes are opened on the three layers of rib plates for inserting heavy bolts, positioning sleeves are welded between the lower two layers of rib plates, and fixed keys are welded on the upper two layers of rib plates, the positioning sleeves and the fixed keys are matched for use, and the heavy bolt can only move up and down and rotate along the fixed direction.

[0008] Further, the heavy bolt is provided with vertical key grooves and annular key grooves, the vertical key grooves are used as sliding grooves of the fixed keys when the heavy bolt moves up and down, the annular key grooves are two and are used as sliding grooves of the fixed keys when the heavy bolt rotates after being pulled to the position, so that the sliding grooves are clamped on the fixed keys after rotation to prevent the heavy bolt from falling down.

[0009] Further, when the heavy bolt is inserted into the pit slot, the fixed key at the upper end is limited at the end of the vertical key groove.

[0010] Further, the upper end of the fixed support rod is reduced in diameter to provide a first circumferential support rotating step for the rotating sleeve at the lower end.

[0011] Further, the upper end of the fixed support rod is reduced in diameter to provide a first circumferential support rotating step for the rotating sleeve at the lower end.

[0012] Further, the fixed base is provided with an inverted hook type steel bar, which is integrally formed with the ground of the mine shaft during pouring of the foundation cement, the fixed support rod is connected to the fixed base by a fixed sleeve in a socket connection, and the fixed sleeve is welded to the fixed base and is reinforced by the reinforcing bars on the opposite corners.

[0013] Further, the pit slot is a steel pipe pre-embedded and poured on the ground of the mine shaft.

[0014] Further, a gap of 40-50 cm is reserved between the two groups of limiters, and a gap of 70-100 cm is reserved between the side edges of the two groups of limiters and the sidewall of the shaft.

[0015] Beneficial effects: the car stopper designed in the application is in a double-leaf door mode and can only be opened in one direction, the main structures are heavy components and are reinforced, the assembly structure is simple, the strength is high, and the anti-impact ability is strong, even if the vehicle is subjected to rapid impact, the vehicle can be stopped to avoid the accident of the mine truck entering the shaft. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings constituting a part of the application are used to provide further understanding of the application, the illustrative embodiments of the application and the description thereof are used to explain the application, and do not constitute improper limitation on the application. In the drawings:

[0017] Figure 1The structural schematic diagram of the heavy-duty car stopper used in the mine shaft mouth according to the embodiment of the present application;

[0018] Figure 2 The structural schematic diagram of the fixing support and the supporting rod of the heavy-duty car stopper used in the mine shaft mouth according to the embodiment of the present application;

[0019] Figure 3 The structural schematic diagram of the heavy-duty bolt of the heavy-duty car stopper used in the mine shaft mouth according to the embodiment of the present application;

[0020] Figure 4 The structural schematic diagram of the pit slot of the heavy-duty car stopper used in the mine shaft mouth according to the embodiment of the present application;

[0021] Figure 5 The structural schematic diagram of the heavy-duty door of the heavy-duty car stopper used in the mine shaft mouth according to the embodiment of the present application. DETAILED DESCRIPTION

[0022] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0023] The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] Embodiment 1

[0025] Reference Figures 1-5 The heavy-duty car stopper used in the mine shaft mouth comprises two sets of limiters, which are installed in the mine shaft mouth in a double-leaf door manner and are arranged to be opened in one direction.

[0026] The present embodiment designs a car stopper which is opened in one direction in a double-leaf door manner, so that the vehicle can be stopped even if it is impacted quickly, to avoid the accident of the mine car crashing into the wellbore.

[0027] In a specific example, the limiter comprises a fixed base 1, a fixed supporting rod 2, a rotating sleeve 3, a heavy-duty door 4, a heavy-duty bolt 5, a pit slot 8, and a limiting block 11. The fixed base 1 is fixedly installed on the ground of the mine shaft mouth. The fixed supporting rod 2 is installed on the fixed base 1. One side of the heavy-duty door 4 is hinged to the fixed supporting rod 2 through two rotating sleeves 3. The fixed base 1 is provided with a limiting block 11 located behind the heavy-duty door 4 for limiting. The other side of the heavy-duty door 4 is provided with a heavy-duty bolt 5 arranged at the middle position. The ground of the mine shaft mouth is provided with a pit slot 8 corresponding to the heavy-duty bolt 5.

[0028] In a specific implementation, the heavy door of the embodiment adopts a channel steel with a size of 14 cm or above as a frame, the heavy door is 30 cm wide, symmetrical to a center line, four sides are welded with a steel plate, a local part in the middle is reinforced, a space of 40-50 cm is left in the middle, the lower end of the heavy door is 8-10 cm high from the ground, which is appropriate for the opening and closing rotation of the heavy door; the fixed support rod adopts a round steel with a size of 14 cm or above and a smooth surface treatment, the fixed support rod and the fixed sleeve adopt a socket connection, two annular contact surfaces are welded. The fixed support rod is provided with a reduced diameter at an appropriate height, the original 14 cm diameter is reduced to 11 cm according to a concentric circle, a 1.5 cm circumferential step is formed, which is used for supporting the rotating sleeve and the heavy door. The rotating sleeve is sleeved with the fixed support rod sleeve, a small gap is left, and grease is coated during installation, so that the rotating sleeve can be easily rotated. The rotating sleeve is made of a steel pipe with an inner diameter of about 11.4 cm and an outer diameter of more than 14 cm, is cut and polished to be smooth, two rotating sleeves are welded on both sides of the contact part of the heavy door, and the heavy bolt is made of a round steel with a size of 10 cm or above and is treated with a smooth surface.

[0029] The limiting block of the embodiment enables the heavy door to be opened in one direction only, and through the bidirectional cooperation of the limiting block, the heavy bolt and the pit slot, the closing and fixing of the heavy vehicle stopper are realized, and the safety is improved.

[0030] In a specific example, the heavy door 4 is sequentially welded with three layers of rib plates 6 from top to bottom, the three layers of rib plates 6 are all provided with holes for inserting the heavy bolt 5, the lower two layers of rib plates 6 are welded with a positioning sleeve 7, the upper two layers of rib plates 6 are welded with a fixed key 10 at the upper part, the positioning sleeve 7 and the fixed key 10 are used in cooperation, and are used for enabling the heavy bolt 5 to move up and down and rotate along a fixed direction only.

[0031] The embodiment enables the heavy bolt to move up and down and rotate along a fixed direction only through the cooperation of the holes of the three layers of rib plates, the lower two layers of positioning sleeves and the upper two layers of fixed keys, and the fixed structure of the bolt is stable and firm.

[0032] In a specific example, the heavy bolt 5 is provided with a vertical key groove 501 and a ring-shaped key groove 502, the vertical key groove 501 is used as a sliding groove of the fixed key 10 when the heavy bolt 5 moves up and down, the ring-shaped key groove 502 is two, is used as a sliding groove of the fixed key 10 when the heavy bolt 5 rotates after being pulled to a position, and enables the sliding groove to be clamped on the fixed key 10 after rotation, so that the heavy bolt 5 does not fall down.

[0033] It should be noted that the heavy door middle part is welded with three layers of rib plates, the middle of the rib plate is opened, the verticality of the opening position is high, the hole diameter size is slightly larger than 10 cm, the rib plate opening is used for inserting the heavy bolt, the lower two layers of rib plates are welded with positioning sleeves, the inner diameter of the positioning sleeve is about 10.5 cm, the upper two layers of rib plates are welded with fixing keys on the same vertical position, the fixing key adopts a square key with a size of 0.8 to 1 cm, the fixing key protrudes from the opening position by 0.8 cm during installation, and the positioning sleeve is used in cooperation with the fixing key, so that the heavy bolt can only move up and down and rotate along the fixed direction.

[0034] The key groove depth of the embodiment is preferably 0.8-1 cm, and the width is slightly larger than the width of the fixing key. The vertical key groove serves as a fixing key sliding groove when the heavy bolt moves up and down, and the annular key groove serves as a fixing key sliding groove when the heavy bolt rotates after being pulled into place. After rotating into place, the upper edge of the annular key groove falls on the fixing key to make the heavy bolt in a pulled-out state.

[0035] In a specific example, when the heavy bolt 5 is inserted into the pit slot 8, the fixing key 10 at the upper end is limited to the end of the vertical key groove 501.

[0036] The fixing key limited to the end of the vertical key groove of the embodiment can prevent the heavy bolt from continuing to fall and rotate, improve the safety of use, and prevent falling off.

[0037] In a specific example, the upper end of the fixing support rod 2 is reduced in diameter to provide a first circumferential support rotating step 201 for the rotating sleeve 3 at the lower end.

[0038] The first circumferential support rotating step of the fixing support rod of the embodiment can be used to support the rotating sleeve and the heavy door, improving the strength of the car stopper.

[0039] In a specific example, the upper end of the fixing support rod 2 is reduced in diameter and further provided with a second circumferential support rotating step 202 corresponding to the rotating sleeve 3 at the upper end.

[0040] The second circumferential support rotating step and the first circumferential support rotating step of the fixing support rod of the embodiment can be used together to support the rotating sleeve and the heavy door, further improving the strength and stability of the car stopper.

[0041] In a specific example, the fixed base 1 is provided with an inverted hook type steel bar on the back, which is integrally formed with the ground of the mine shaft during pouring of the foundation cement. The fixing support rod 2 is connected to the fixed base 1 by a fixed sleeve 9 through a socket connection, and the upper and lower annular contact surfaces are welded. The fixed sleeve 9 is welded and connected to the fixed base 1, and the four opposite corners are reinforced by reinforcing ribs 101.

[0042] It should be noted that the fixed base of the embodiment is provided with a back hook type steel bar, which is integrally formed when the foundation cement is poured, the fixed support rod and the fixed sleeve are connected by a socket, the upper and lower annular contact surfaces are welded, the four corners of the fixed sleeve and the fixed base are reinforced by the reinforcing bars, so as to achieve the effect of firm structure, stability and impact resistance.

[0043] In a specific example, the pit slot 8 is a steel pipe pre-buried and poured on the ground surface of the mine shaft inlet.

[0044] When the heavy door is closed, the heavy bolt is rotated and dropped into the pit slot vertically below, the pit slot is a steel pipe pre-buried before pouring the foundation cement, which is slightly thicker than the heavy bolt, as a slot, the inner diameter is preferably 11-12 cm, and the depth of the pit slot is not less than 10 cm.

[0045] In a specific example, a gap of 40-50 cm is reserved between the two sets of limiters, and a gap of 70-100 cm is reserved between the side edges of the two sets of limiters and the side wall of the shaft inlet.

[0046] It should be noted that the above three gaps of the embodiment can be passed by pedestrians, but cannot be passed by other vehicles such as trackless rubber-tyred vehicles.

[0047] The above only describes the preferred embodiments of the present application and is not intended to limit the present application, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A heavy-duty vehicle arrester used at a mine shaft entrance, characterized in that, The system includes two sets of limiters, which are installed at the mine entrance in a double-door configuration. Both sets of limiters are designed for one-way opening, with the opening direction opposite to the vehicle's entry direction. Each limiter includes a fixed base (1), a fixed support rod (2), a rotating sleeve (3), a heavy-duty door (4), a heavy-duty pin (5), a pit slot (8), and a limiting block (11). The fixed base (1) is fixedly installed on the ground at the mine entrance. The fixed support rod (2) is installed on the fixed base (1). One side of the heavy-duty door (4) is hinged to the fixed support rod (2) via two rotating sleeves (3). The fixed base (1) is equipped with a limiting block (11), which is located behind the heavy-duty door (4) for limiting movement. A heavy-duty pin (5) is installed in the middle of the other side of the heavy-duty door (4). The ground at the mine entrance is equipped with a device that matches the heavy-duty pin (5). 5) Corresponding to the matching pit slot (8), the heavy door (4) is welded with three layers of stiffening plates (6) from top to bottom. The three layers of stiffening plates (6) are all opened for inserting heavy-duty pins (5). A positioning sleeve (7) is welded between the lower two layers of stiffening plates (6). A fixing key (10) is welded on the upper part of the upper two layers of stiffening plates (6). The positioning sleeve (7) and the fixing key (10) are used together to make the heavy-duty pin (5) only move up and down and rotate along a fixed direction. The heavy-duty pin (5) is provided with a vertical keyway (501) and an annular keyway (502). The vertical keyway (501) is used as a sliding groove for the fixing key (10) when the heavy-duty pin (5) moves up and down. There are two annular keyways (502), which are used as sliding grooves for the fixing key (10) when the heavy-duty pin (5) is pulled into place and rotated, so that the sliding groove is stuck on the fixing key (10) after rotation so that the heavy-duty pin (5) does not fall off.

2. The heavy-duty vehicle arrester used at the mine shaft entrance according to claim 1, characterized in that, When the heavy-duty pin (5) is inserted into the pit slot (8), the upper fixing key (10) is limited to the end of the vertical keyway (501).

3. The heavy-duty vehicle arrester used at the mine shaft entrance according to claim 1, characterized in that, The upper end of the fixed support rod (2) is reduced in diameter to provide a first circumferential support for the rotating sleeve (3) at the lower end, forming a rotating step (201).

4. The heavy-duty vehicle arrester used at the mine entrance according to claim 3, characterized in that, The upper end of the fixed support rod (2) is also provided with a second circumferential support rotating step (202) that corresponds to and matches the upper rotating sleeve (3).

5. The heavy-duty vehicle arrester used at the mine shaft entrance according to claim 1, characterized in that, The fixed base (1) is equipped with barbed steel bars on the back. It is cast integrally with the ground of the mine shaft during the foundation cement pouring. The fixed support rod (2) is connected to the fixed base (1) by socket through the fixed sleeve (9). The upper and lower annular contact surfaces are welded. The fixed sleeve (9) is welded to the fixed base (1). The four corners are reinforced by reinforcing ribs (101).

6. The heavy-duty vehicle arrester used at the mine shaft entrance according to claim 1, characterized in that, The pit slot (8) is a steel pipe pre-embedded and cast into the ground at the mine shaft opening.

7. The heavy-duty vehicle arrester used at the mine shaft entrance according to claim 1, characterized in that, A gap of 40-50cm is reserved between the two sets of limiters, and a gap of 70-100cm is reserved between the sides of the two sets of limiters and the sidewall of the wellhead.

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