Adjustable pedestrian gap bridge for coal mine scraper

Abstract

The utility model relates to the technical field of electromechanical transportation, in particular to an adjustable coal mine scraper pedestrian gap bridge which comprises two beam mechanisms, two supporting mechanisms and a bearing mechanism, the two beam mechanisms are arranged in parallel, each beam mechanism comprises two main square through pipes, and a sleeve frame is arranged between the adjacent ends of the two main square through pipes. The bridge body is formed by the two cross beam mechanisms, the four supporting mechanisms and the bearing mechanisms, during storage, the bridge plate is taken down and stored, the two cross beam mechanisms move in the opposite directions, the main square through pipe drives the two main plates to move in the opposite directions through the adjacent supporting arms, the auxiliary square through pipes on the four supporting mechanisms are stored in the adjacent auxiliary square through pipes, and storage is achieved. The four auxiliary square through pipes are rotated to be parallel to the adjacent main square through pipes, then the two main square through pipes on the same cross beam mechanism are pulled away from each other, and then the two main square through pipes are rotated to be folded, so that the occupied area is reduced, and a user can carry and transport conveniently.

Description

Technical Field

[0001] This utility model relates to the field of electromechanical transportation technology, specifically an adjustable pedestrian bridge for coal mine scraper conveyors. Background Technology

[0002] Coal mine underground working faces are usually equipped with scraper conveyors for transportation. Since underground conveyors are mostly long, underground workers who need to cross them usually have to take a long detour. If they illegally cross the scraper conveyor, it is easy to cause safety accidents. Therefore, pedestrian bridges are usually set up at the scraper conveyor to facilitate the passage of personnel. However, the bridges are usually heavy, large and difficult to adjust in height. In some sites with poor geological conditions and low mining roadways, it is inconvenient to carry and transport materials. Therefore, a large number of pedestrian bridges are often set up at intervals at the scraper conveyor for personnel passage, which wastes resources. In addition, a large number of pedestrian bridges can reduce underground space and is quite inconvenient. Utility Model Content

[0003] The purpose of this invention is to provide an adjustable pedestrian bridge for coal mine scraper conveyors to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] Adjustable pedestrian bridge for coal mine scraper conveyors, including:

[0006] The system comprises two beam mechanisms, two support mechanisms, and a support mechanism. The two beam mechanisms are arranged in parallel. Each beam mechanism includes two main square tubes, with a frame between adjacent ends of the two main square tubes. Each adjacent end of the two main square tubes has a notch, and a sliding rod is fixedly connected between the two opposite inner sidewalls of any notch. Two sleeves are slidably fitted inside the frame, and the two sliding rods are rotatably fitted inside the two sleeves. A groove is provided on the top surface of the frame, and guide plates are fixedly connected to the outer sidewalls of the two sleeves. Both guide plates are located inside the groove, and each guide plate has a circular hole at its top. The frame is slidably fitted inside the two main square tubes. Four support mechanisms are located at both ends of the two beam mechanisms, and each of the four support mechanisms corresponds to one of the four main square tubes. The support mechanisms are located between the two beam mechanisms.

[0007] Furthermore, a positioning plate is fixedly connected to the center of the top surface of the sleeve on both beam mechanisms, and a through hole is opened on one side of each positioning plate.

[0008] Furthermore, each main square tube has multiple reinforcing ribs fixedly connected to its inner wall.

[0009] Furthermore, the supporting mechanism includes:

[0010] The system comprises a connecting shell, a secondary square tube, a rotating shaft, and a secondary square tube. The top surface of the connecting shell is fixedly connected to one end of the bottom surface of the corresponding primary square tube. The secondary square tube has multiple screw holes on both opposite sides. The two ends of the rotating shaft are rotatably connected to the two opposite inner walls of the connecting shell. The rotating shaft passes through the top ends of the two opposite inner walls of the secondary square tube, and the outer wall of the rotating shaft is fixedly connected to the two opposite inner walls of the secondary square tube. The middle of the outer wall of the rotating shaft and one side of the connecting shell are both provided with insertion ports, and the rotating shaft is equipped with a pin. The secondary square tube is slidably fitted inside the secondary square tube, and the top ends of the two opposite inner walls of the secondary square tube are both provided with threaded holes.

[0011] Furthermore, each of the square tubes is rotatably connected to a base plate at its bottom end.

[0012] Furthermore, a connecting rope is fixedly connected to one end of each pin and one side of the adjacent connecting shell.

[0013] Furthermore, the supporting mechanism includes:

[0014] The system comprises two main boards, four support arms, multiple guide cables, and multiple bridge plates. The two main boards are located at one end of two main square tubes on the same crossbeam mechanism. One end of each of the four support arms is rotatably connected to one end of the four main square tubes. The two ends of each of the two main boards are rotatably connected to the other ends of two adjacent support arms. Multiple guide cables are located between the two main boards, with both ends of any guide cable located at the two main boards. Both ends of any guide cable are fixedly connected to the side wall of an adjacent support arm. Multiple bridge plates are provided above the multiple guide cables.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] The bridge structure is constructed using two crossbeam mechanisms, four support mechanisms, and a supporting mechanism. During storage, the bridge panels are removed and stored separately. By moving the two crossbeam mechanisms towards each other, the main square tubes are moved towards each other via adjacent support arms, bringing the two crossbeam mechanisms closer together. Then, the square tubes on the four support mechanisms are retracted into the adjacent secondary square tubes, and the four secondary square tubes are rotated to be parallel to the adjacent main square tubes. Next, the two main square tubes on the same crossbeam mechanism are pulled away from each other, causing the sliding rods and sleeves on the two main square tubes to move to the two ends inside the adjacent sleeve frame. Finally, the two main square tubes are rotated to fold in half, thereby reducing the floor space occupied and facilitating handling and transportation by users. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2This is a schematic diagram showing the positional relationship between the beam mechanism, the support mechanism, and the bearing mechanism in this utility model;

[0019] Figure 3 This is an exploded view of the crossbeam mechanism structure in this utility model;

[0020] Figure 4 This is an exploded view of the support mechanism structure in this utility model.

[0021] In the diagram: 100, crossbeam mechanism; 110, main square tube; 111, notch; 112, slide bar; 113, reinforcing rib; 120, sleeve; 121, slide groove; 122, positioning plate; 130, sleeve; 131, guide plate; 200, support mechanism; 201, socket; 210, connecting shell; 220, secondary square tube; 221, screw hole; 230, rotating shaft; 231, pin; 232, connecting rope; 240, secondary square tube; 300, base plate; 400, supporting mechanism; 410, main plate; 420, support arm; 430, guide cable; 440, bridge plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-4 In this embodiment of the utility model, the adjustable pedestrian bridge for a coal mine scraper conveyor includes:

[0024] The system comprises two beam mechanisms 100, two support mechanisms 200, and a supporting mechanism 400. The two beam mechanisms 100 are arranged in parallel to each other. Each beam mechanism 100 includes two main square tubes 110, and a frame 120 is provided between adjacent ends of the two main square tubes 110. Each adjacent end of the two main square tubes 110 has a notch 111. A sliding rod 112 is fixedly connected between the two opposite inner sidewalls of any notch 111. Two sleeves 130 are slidably sleeved inside the frame 120, and the two sliding rods 112 are rotatably sleeved on the two sleeves 130 respectively. Inside the tube 130, the top surface of the sleeve 120 is provided with a sliding groove 121, and the outer walls of the two sleeves 130 are fixedly connected with guide plates 131. The two guide plates 131 are located inside the sliding groove 121, and the top of the two guide plates 131 is provided with a circular hole. The sleeve 120 is slidably sleeved inside the two main square tubes 110. The four support mechanisms 200 are located at both ends of the two crossbeam mechanisms 100 respectively. The four support mechanisms 200 correspond one-to-one with the four main square tubes 110. The supporting mechanisms 400 are all located between the two crossbeam mechanisms 100.

[0025] Specifically, in the storage state, by pulling the four main square tubes 110 on the two crossbeam mechanisms 100 in opposite directions, the two sliding rods 112 on the same crossbeam mechanism 100 pull the adjacent sleeves 130 to their respective ends inside the adjacent sleeve frames 120, causing the sleeve frames 120 on the two crossbeam mechanisms 100 to disengage from the interior of the two adjacent main square tubes 110. At this time, the two main square tubes 110 on the same crossbeam mechanism 100 can rotate using the adjacent sliding rods 112 and sleeves 130 as axes, causing the two main square tubes 110 on the same crossbeam mechanism 100 to fold in half, facilitating storage and transportation. In the usage state... At this time, by moving the four main square tubes 110 on the two crossbeam mechanisms 100 toward each other, the two slide rods 112 on the same crossbeam mechanism 100 drive the adjacent sleeves 130 to move toward each other and come into contact, so that the two ends of the sleeve frame 120 on the two crossbeam mechanisms 100 are respectively embedded inside the two main square tubes 110, keeping the two main square tubes 110 on the same crossbeam mechanism 100 parallel. Then, by using bolts to pass through the two bolt holes on the same crossbeam mechanism 100 and tightening nuts, the positions of the two main square tubes 110 on the same crossbeam mechanism 100 are fixed, thus facilitating use by the user.

[0026] Example 1

[0027] like Figure 2 and Figure 4 As shown, in this embodiment, the support mechanism 200 includes:

[0028] The connecting shell 210, secondary square tube 220, rotating shaft 230, and secondary square tube 240 are connected. The top surface of the connecting shell 210 is fixedly connected to one end of the bottom surface of the corresponding main square tube 110. The secondary square tube 220 has multiple screw holes 221 on both opposite sides. The two ends of the rotating shaft 230 are rotatably connected to the two opposite inner sidewalls of the connecting shell 210, respectively. The rotating shaft 230 passes through the top ends of the two opposite inner sidewalls of the secondary square tube 220, and the outer sidewall of the rotating shaft 230 is connected to the two opposite inner sidewalls of the secondary square tube 220. The fixed connection has an insertion port 201 on the middle of the outer wall of the rotating shaft 230 and on one side of the connecting shell 210. The rotating shaft 230 is equipped with a pin 231. The square tube 240 is slidably sleeved inside the secondary square tube 220. The top of the two opposite inner side walls of the square tube 240 is provided with threaded holes. The bottom end of any square tube 240 is rotatably connected to a base plate 300. One end of any pin 231 is fixedly connected to one side of the adjacent connecting shell 210 with a connecting rope 232.

[0029] In this embodiment, in the storage state, the main square tube 240 can be slid into the adjacent secondary square tube 220, and the secondary square tube 220 can be rotated to be parallel to the adjacent main square tube 110, thus facilitating storage and transportation. In the use state, the secondary square tube 220 on the support mechanism 200 can be rotated to be perpendicular to the adjacent main square tube 110. Then, the user can pass the pin 231 through the socket 201 on the adjacent connecting shell 210 and the rotating shaft 230 to fix the position of the secondary square tube 220. Then, the user can slide the main square tube 240 to adjust the bridge deck height, and then pass the screw through the screw hole 221 on the secondary square tube 220. The screw hole 221 on the secondary square tube 220 is screwed into the threaded hole on the adjacent square tube 240 to fix the bridge deck height. The screw hole 221 on the secondary square tube 220 can be opened on site according to the site requirements. When the pin 231 is pulled out of the adjacent socket 201 by the connecting rope 232, it can be suspended near the secondary square tube 220 by the connecting rope 232 to prevent the pin 231 from falling and being lost. The base plate 300 can increase the contact area between the bottom end of the secondary square tube 240 and the ground, improve the stability of the bridge body, and the bottom surface of the base plate 300 can be rotated to be parallel to the adjacent secondary square tube 240, so that when it is stored, the base plate 300 is not easy to collide with the adjacent main square tube 110.

[0030] like Figures 1-2 As shown, in this embodiment, the support mechanism 400 includes:

[0031] The system comprises two main boards 410, four support arms 420, multiple guide cables 430, and multiple bridge plates 440. The two main boards 410 are located at one end of two main square tubes 110 on the same beam mechanism 100. One end of each of the four support arms 420 is rotatably connected to one end of each of the four main square tubes 110. The two ends of each of the two main boards 410 are rotatably connected to the other ends of two adjacent support arms 420. The multiple guide cables 430 are located between the two main boards 410. The two ends of any guide cable 430 are located at the two main boards 410. The two ends of any guide cable 430 are fixedly connected to the side wall of the adjacent support arm 420. The multiple bridge plates 440 are arranged above the multiple guide cables 430.

[0032] In practice, the guide cable 430 can be made of steel wire rope or chain. In use, by pulling the two crossbeam mechanisms 100 away from each other, the main square tubes 110 on the two crossbeam mechanisms 100 pull the adjacent support arm 420 and the adjacent main plate 410 into a parallel state, and also straighten the adjacent guide cables 430. Then, the user can manually lay the bridge plate 440 directly onto the multiple guide cables 430, and secure the bridge plate 440 to the main square tubes 110 on the two crossbeam mechanisms 100. In the storage state, multiple bridge plates 440 are detached from the guide cable 430 and stacked for storage. By moving the two crossbeam mechanisms 100 away from each other, the main square tubes 110 on the two crossbeam mechanisms 100 drive the adjacent support arms 420 to rotate, and the two main plates 410 move towards each other, thereby reducing the footprint of the two crossbeam mechanisms 100 and the support mechanism 400. Then, the user can fold the two crossbeam mechanisms 100, making it convenient for the user to store and move them.

[0033] Example 2

[0034] Based on Embodiment 1, the positioning plate 122 is provided to facilitate further fixing of the position of the main square tube 110 on the two crossbeam mechanisms 100.

[0035] like Figure 3 As shown, in this embodiment, a positioning plate 122 is fixedly connected to the center of the top surface of the sleeve 120 on both beam mechanisms 100, and a through hole is opened on one side of each of the two positioning plates 122. Multiple reinforcing ribs 113 are fixedly connected to the inner side wall of any main square tube 110.

[0036] In specific implementation, when the beam mechanism 100 is in use, bolts can be passed through two bolt holes on the same beam mechanism 100 and through adjacent through holes before being screwed into nuts. This allows the positioning plate 122 to position the two adjacent main square tubes 110, preventing the sleeve frame 120 from sliding out of the adjacent main square tubes 110. The load-bearing capacity of the main square tubes 110 is improved by welding reinforcing ribs 113 inside the main square tubes 110.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An adjustable pedestrian bridge for coal mine scraper conveyors, characterized in that, include: Two beam mechanisms (100) are arranged in parallel to each other. Each beam mechanism (100) includes two main square tubes (110), and a frame (120) is provided between adjacent ends of the two main square tubes (110). Each adjacent end of the two main square tubes (110) has a notch (111). A slide rod (112) is fixedly connected between the two opposite inner walls of any notch (111). Two sleeves are slidably fitted inside the frame (120). 130), and two sliding rods (112) are respectively rotatably sleeved inside the two sleeves (130). The top surface of the sleeve frame (120) is provided with a sliding groove (121), and the outer walls of the two sleeves (130) are fixedly connected with guide plates (131). The two guide plates (131) are located inside the sliding groove (121), and the top of the two guide plates (131) is provided with a circular hole. The sleeve frame (120) is slidably sleeved inside the two main square tubes (110). Four support mechanisms (200) are located at both ends of the two beam mechanisms (100), and the four support mechanisms (200) correspond one-to-one with the four main square tubes (110); The supporting mechanism (400) is located between the two beam mechanisms (100).

2. The adjustable pedestrian bridge for coal mine scraper conveyors according to claim 1, characterized in that, The support mechanism (200) includes: The top surface of the connecting shell (210) is fixedly connected to one end of the bottom surface of the corresponding main square tube (110); The secondary square tube (220) has multiple screw holes (221) on both sides; The rotating shaft (230) is rotatably connected at both ends to the two opposite inner walls of the connecting shell (210). The rotating shaft (230) passes through the top of the two opposite inner walls of the secondary square tube (220), and the outer wall of the rotating shaft (230) is fixedly connected to the two opposite inner walls of the secondary square tube (220). The middle part of the outer wall of the rotating shaft (230) and one side of the connecting shell (210) are provided with a socket (201), and the rotating shaft (230) is equipped with a pin (231). The square tube (240) is slidably sleeved inside the secondary square tube (220), and threaded holes are provided at the top of the two opposite inner sidewalls of the square tube (240).

3. The adjustable pedestrian bridge for coal mine scraper conveyors according to claim 1, characterized in that, The support mechanism (400) includes: Two main boards (410) are located at one end of two main square tubes (110) on the same beam mechanism (100); Four support arms (420) are rotatably connected at one end to one end of the four main square tubes (110), and the two main boards (410) are rotatably connected at both ends to the other ends of the two adjacent support arms (420); Multiple guide cables (430) are located between the two main boards (410), with both ends of any guide cable (430) located at the two main boards (410) respectively, and both ends of any guide cable (430) are fixedly connected to the side wall of the adjacent support arm (420). Multiple bridge plates (440) are all mounted on top of multiple guide cables (430).

4. The adjustable pedestrian bridge for coal mine scraper conveyors according to claim 3, characterized in that, The top center of the sleeve (120) on both beam mechanisms (100) is fixedly connected to a positioning plate (122), and a through hole is opened on one side of each positioning plate (122).

5. The adjustable pedestrian bridge for coal mine scraper conveyors according to claim 3, characterized in that, Each main square tube (110) has multiple reinforcing ribs (113) fixedly connected to its inner side wall.

6. The adjustable pedestrian bridge for coal mine scraper conveyors according to claim 2, characterized in that, Each of the square tubes (240) is rotatably connected to a base plate (300).

7. The adjustable pedestrian bridge for coal mine scraper conveyors according to claim 2, characterized in that, A connecting rope (232) is fixedly connected to one end of any pin (231) and one side of the adjacent connecting shell (210).

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