Storable pedestrian gap bridge for underground reversed loader

Abstract

A storable pedestrian gap bridge for an underground reversed loader relates to the technical field of coal mine equipment and comprises a pedestrian platform and two vertical ladders. The pedestrian platform is fixedly arranged above the middle groove in the width direction of the middle groove; the two vertical ladders are the same in structure and are arranged on the two sides of the pedestrian platform in the width direction of the middle groove, two sliding ways which are arranged in the same direction in the width direction of the middle groove are formed in the pedestrian platform, the two sliding ways are arranged in parallel in the vertical direction, and one end of one vertical ladder is installed in one sliding way and matched with the sliding way in a sliding mode. And one end of the other vertical ladder is arranged in the other group of slide ways and is in sliding fit with the slide ways. The folding chair is convenient to store, and the occupied space is saved; moreover, the mechanical strength and stability of the reversed loader cannot be influenced, the maintenance difficulty is reduced, and the overhaul time is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine equipment, in particular to a pedestrian accommodating bridge for an underground transfer machine. Background Art

[0002] The underground transfer machine is the main transportation equipment in the coal mining process. It is used between the scraper conveyor and the belt conveyor to transfer the coal flow to the belt conveyor. Therefore, the use effect of the transfer machine directly affects the coal mining efficiency.

[0003] In order to ensure the safety of coal mining workers passing through the transfer machine, a pedestrian bridge is usually installed on the transfer machine. However, traditional pedestrian bridges are generally built in the following ways:

[0004] 1. Directly open a gap on the side plate of the transfer machine, install the pedestrian bridge on the gap, and when pedestrians use it, directly lay it on the transfer machine for pedestrians to use; when not in use, the pedestrian bridge is retracted to the side plate of the transfer machine and used as a coal blocking plate to block coal. For example, the utility model patent with announcement number CN220059658U, entitled A transfer machine and a pedestrian bridge device for a transfer machine, discloses a pedestrian bridge of this structure. Although the pedestrian bridge of this structure can serve two purposes, its structure is complex and requires changes to the side plate of the transfer machine, which reduces the mechanical strength and stability of the transfer machine, and requires high maintenance and inspection requirements in the later stage, which increases the maintenance difficulty and inspection time of workers and reduces production efficiency.

[0005] 2. Without changing the structure of the transfer machine, a pedestrian bridge is installed on the top of the transfer machine, and then ladders are installed at both ends of the pedestrian bridge. When pedestrians pass through, they climb up the pedestrian bridge by the ladder and then pass through the transfer machine. For example, the utility model patent with announcement number CN217733719U, named a fixed bridge-type transfer machine pedestrian bridge for mining, discloses a pedestrian bridge of this structure. Although this pedestrian bridge will not change the transfer machine and will not affect production efficiency, the ladders installed on both sides occupy the space around the transfer machine. Especially when the underground space is limited, the existence of the ladder also reduces the production space of the workers, causing interference with normal production and affecting production efficiency; moreover, if the ladder is removed when not in use, there are also disadvantages of cumbersome installation and removal procedures, which is time-consuming and labor-intensive. Utility Model Content

[0006] In view of this, the technical problem to be solved by the utility model is: to provide a retractable pedestrian bridge for an underground transfer machine, which is easy to store and saves space; moreover, it will not affect the mechanical strength and stability of the transfer machine, reduce the difficulty of maintenance and shorten the inspection time.

[0007] In order to solve the above technical problems, the technical solution of the utility model is:

[0008] A pedestrian bridge for underground transfer machine, comprising a pedestrian platform and two vertical ladders;

[0009] The pedestrian platform is fixedly arranged above the middle groove along the width direction thereof;

[0010] The two vertical ladders have the same structure and are arranged on both sides of the pedestrian platform along the width direction of the middle groove. The pedestrian platform is provided with two groups of slides arranged in the same direction along the width direction of the middle groove. The two groups of slides are arranged in parallel in the vertical direction. One end of one vertical ladder is installed in one group of slides and is slidably adapted thereto, and one end of the other vertical ladder is installed in the other group of slides and is slidably adapted thereto.

[0011] Preferably, the pedestrian platform comprises a platform seat and a platform bottom plate;

[0012] The platform seat is a hollow structure with openings at both ends, and the platform seat is fixed above the middle groove;

[0013] The platform bottom plate is fixedly arranged above the platform seat.

[0014] Preferably, a plurality of anti-slip strips are convexly provided on the platform bottom plate, and the plurality of anti-slip strips are arranged along the length direction of the middle groove.

[0015] Preferably, two handrails are fixedly provided on the platform seat, and the two handrails are arranged opposite to each other along the length direction of the middle groove.

[0016] Preferably, the platform seat comprises a connecting plate and two guide rail plates;

[0017] The connecting plate is fixedly arranged above the middle groove;

[0018] The two guide rail plates are arranged above the connecting plate in a relative manner along the length direction of the middle groove, and two slideways arranged in parallel along the vertical direction are provided on the guide rail plate, and the two slideways on the two guide rail plates in the same plane constitute a group of slideways;

[0019] An accommodating space for accommodating the vertical ladder is formed between the connecting plate, the two guide rail plates and the platform bottom plate.

[0020] Preferably, a horizontally arranged layered plate is fixedly provided on the inner side of the guide rail plate, and the layered plate is arranged between the two slideways.

[0021] Preferably, a plurality of rib plates are fixedly provided between the guide rail plate and the connecting plate, the plurality of rib plates are arranged equidistantly along the width direction of the middle groove, and avoidance gaps for avoiding the slideway are opened on the rib plates.

[0022] Preferably, both ends of the slideway are recessed with limiting portions.

[0023] Preferably, the end of the vertical ladder is connected to the slideway via a connecting pin, and the connecting pin is located in the limiting portion in both the use and storage states.

[0024] After adopting the above technical solution, the beneficial effects of the utility model are:

[0025] Because in the utility model, it includes a pedestrian platform and two vertical ladders; wherein, the pedestrian platform is fixedly arranged above the middle groove along the width direction thereof; the two vertical ladders have the same structure, and the two vertical ladders are arranged on both sides of the pedestrian platform along the width direction of the middle groove, and two groups of slides are arranged in the same direction along the width direction of the middle groove on the pedestrian platform, and the two groups of slides are arranged in parallel along the vertical direction, one end of one vertical ladder is installed in one group of slides and slidably adapted thereto, and one end of the other vertical ladder is installed in the other group of slides and slidably adapted thereto. When in use, the two ladders arranged on both sides of the pedestrian platform can meet the needs of pedestrians to climb from one side of the middle trough and move to the other side through the pedestrian platform; when pedestrians are not needed to pass, the ladders can be stored on the pedestrian platform through the cooperation of the ladders and the slides, and the ladders will not occupy the space around the middle trough, so it is easy to store and save space. Moreover, installing the pedestrian platform above the middle trough will not change the side panels of the middle trough, will not affect the mechanical strength and stability of the middle trough, and also reduces the difficulty of later maintenance and shortens the inspection time. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0027] Figure 1 It is a schematic diagram of the structure of the underground transfer machine capable of accommodating pedestrian crossing bridge in the use state of the utility model embodiment;

[0028] Figure 2 yes Figure 1 Side view of

[0029] Figure 3 yes Figure 1 Schematic diagram of the structure of the underground transfer machine with a retractable pedestrian bridge in the retracted state;

[0030] Figure 4 yes Figure 3 The main view;

[0031] In the figure:

[0032] 1. Pedestrian platform; 11. Slideway; 111. Limiting part; 12. Platform seat; 121. Handrail; 13. Platform bottom plate; 131. Anti-slip strip; 14. Connecting plate; 15. Guide plate; 16. Layered plate; 17. Rib plate; 171. Avoidance gap;

[0033] 2. Ladder; 21. Connecting pin;

[0034] 3. Middle groove. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0036] like Figures 1 to 4 As shown together, the utility model includes a pedestrian platform 1 and two vertical ladders 2; wherein, the pedestrian platform 1 is fixedly arranged above the middle groove 3 along the width direction thereof; the two vertical ladders 2 have the same structure, and the two vertical ladders 2 are arranged on both sides of the pedestrian platform 1 along the width direction of the middle groove 3, and the pedestrian platform 1 is provided with two groups of slideways 11 arranged in the same direction along the width direction of the middle groove 3, and the two groups of slideways 11 are arranged in parallel along the vertical direction, one end of one vertical ladder 2 is installed in one group of slideways 11 and slidably fits therewith, and one end of the other vertical ladder 2 is installed in the other group of slideways 11 and slidably fits therewith.

[0037] When the present application is in use, the two vertical ladders 2 arranged on both sides of the pedestrian platform 1 can meet the needs of pedestrians climbing from one side of the middle groove 3 and moving to the other side through the pedestrian platform 1; when pedestrians are not needed to pass, the vertical ladder 2 can be stored on the pedestrian platform 1 through the cooperation of the vertical ladder 2 and the slide 11, and the vertical ladder 2 will not occupy the space around the middle groove 3, so it is convenient for storage and saves space. Moreover, the pedestrian platform 1 is installed above the middle groove 3 without changing the side panels of the middle groove 3, and will not affect the mechanical strength and stability of the middle groove 3, which also reduces the difficulty of later maintenance and shortens the inspection time.

[0038] The pedestrian platform 1 includes a platform seat 12 and a platform bottom plate 13 ; the platform seat 12 is a hollow structure with openings at both ends, and the platform seat 12 is fixed above the middle groove 3 ; the platform bottom plate 13 is fixed above the platform seat 12 .

[0039] Preferably, a plurality of anti-skid strips 131 are convexly provided on the platform bottom plate 13, and the plurality of anti-skid strips 131 are arranged along the length direction of the middle groove 3. When in use, the platform bottom plate 13 is used as a carrier for pedestrians to pass through, and in order to prevent the pedestrians from sliding, the platform bottom plate 13 is provided with anti-skid strips 131; or a diamond-shaped anti-skid grid is provided, both of which can achieve the purpose of anti-skid.

[0040] In order to improve the safety during walking, two handrails 121 are fixedly provided on the platform seat 12, and the two handrails 121 are arranged opposite to each other along the length direction of the middle groove 3; the setting of the handrails 121 can, on the one hand, be convenient for pedestrians to hold on to, thereby enhancing walking stability; on the other hand, it can block pedestrians and prevent them from falling, thereby improving safety.

[0041] In the present application, the platform seat 12 includes a connecting plate 14 and two guide plates 15; wherein, the connecting plate 14 is fixedly arranged above the middle groove 3; in order to facilitate the disassembly of the present application, when the connecting plate 14 is fixedly connected to the middle groove 3, preferably, the connecting plate 14 and the middle groove 3 are fixedly connected by bolts; the two guide plates 15 are relatively arranged above the connecting plate 14 along the length direction of the middle groove 3, and two slideways 11 arranged parallel in the vertical direction are provided on the guide plate 15, and the two slideways 11 on the two guide plates 15 that are in the same plane constitute a group of slideways 11; an accommodation space for accommodating the vertical ladder 2 is formed between the connecting plate 14, the two guide plates 15, and the platform bottom plate 13.

[0042] When a vertical ladder 2 slides outward along a set of slideways 11, the outer end of the vertical ladder 2 extends out of the accommodation space, and finally under the action of gravity, the vertical ladder 2 is located outside the middle groove 3, which is convenient for climbing. In order to prevent the middle groove 3 from interfering with the vertical ladder 2, preferably, the outer end of the slideway 11 is located outside the middle groove 3. When the vertical ladder 2 moves outward to the outermost end of the slideway 11, the vertical ladder 2 is located outside the middle groove 3 and is not interfered by it under the action of gravity.

[0043] In order to prevent the two vertical ladders 2 from interfering with each other in the storage space and to improve the use effect of the push-pull vertical ladder 2, a horizontally arranged layer plate 16 is fixedly provided on the inner side of the guide plate 15, and the layer plate 16 is arranged between the two slideways 11. The arrangement of the layer plate 16 ensures that the two vertical ladders 2 arranged up and down will not affect each other and will not interfere with each other when they are pushed and pulled respectively.

[0044] In order to enhance the strength of the guide plate 15 and the connecting plate 14 , a plurality of ribs 17 are fixedly provided between the guide plate 15 and the connecting plate 14 . The plurality of ribs 17 are equidistantly arranged along the width direction of the middle groove 3 . The ribs 17 are provided with avoidance notches 171 for avoiding the slideway 11 .

[0045] In order to prevent the vertical ladder 2 from sliding freely along the slideway 11 uncontrollably due to vibration, both ends of the slideway 11 are recessed with limiting parts 111, and the ends of the vertical ladder 2 are connected to the slideway 11 through connecting pins 21. When the vertical ladder 2 is pushed to the storage space and moved to the inner end of the slideway 11, the connecting pin 21 falls into the limiting part 111, and the limiting part 111 limits the vertical ladder 2 through the connecting pin 21, limiting its free sliding along the width direction of the middle groove 3; when the vertical ladder 2 is pulled to move outward, the connecting pin 21 finally falls into the limiting part 111 at the outer end, and the limiting part 111 limits the vertical ladder 2 through the connecting pin 21, limiting its shaking, thereby improving stability and safety.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pedestrian bridge for underground transfer machine, characterized in that: Includes pedestrian platform and two vertical ladders; The pedestrian platform is fixedly arranged above the middle groove along the width direction thereof; The two vertical ladders have the same structure and are arranged on both sides of the pedestrian platform along the width direction of the middle groove. The pedestrian platform is provided with two groups of slides arranged in the same direction along the width direction of the middle groove. The two groups of slides are arranged in parallel in the vertical direction. One end of one vertical ladder is installed in one group of slides and is slidably adapted thereto, and one end of the other vertical ladder is installed in the other group of slides and is slidably adapted thereto.

2. The retractable pedestrian bridge for underground transfer machine as claimed in claim 1, characterized in that: The pedestrian platform includes a platform seat and a platform bottom plate; The platform seat is a hollow structure with openings at both ends, and the platform seat is fixed above the middle groove; The platform bottom plate is fixedly arranged above the platform seat.

3. The retractable pedestrian bridge for underground transfer machine as claimed in claim 2, characterized in that: A plurality of anti-skid strips are convexly arranged on the platform bottom plate, and the plurality of anti-skid strips are arranged along the length direction of the middle groove.

4. The retractable pedestrian bridge for underground transfer machine as claimed in claim 2, characterized in that: Two handrails are fixedly arranged on the platform seat, and the two handrails are arranged opposite to each other along the length direction of the middle groove.

5. The retractable pedestrian bridge for underground transfer machine as claimed in claim 2, characterized in that: The platform seat includes a connecting plate and two guide rail plates; The connecting plate is fixedly arranged above the middle groove; The two guide rail plates are arranged above the connecting plate in a relative manner along the length direction of the middle groove, and two slideways arranged in parallel along the vertical direction are provided on the guide rail plate, and the two slideways on the two guide rail plates in the same plane constitute a group of slideways; An accommodating space for accommodating the vertical ladder is formed between the connecting plate, the two guide rail plates and the platform bottom plate.

6. The retractable pedestrian bridge for underground transfer machine as claimed in claim 5, characterized in that: A horizontally arranged layered plate is fixedly arranged on the inner side of the guide rail plate, and the layered plate is arranged between the two slideways.

7. The retractable pedestrian bridge for underground transfer machine as claimed in claim 5, characterized in that: A plurality of rib plates are fixedly arranged between the guide rail plate and the connecting plate. The rib plates are arranged equidistantly along the width direction of the middle groove. The rib plates are provided with avoidance notches for avoiding the slideway.

8. The retractable pedestrian bridge for underground transfer machine as claimed in claim 1, characterized in that: Both ends of the slideway are recessed with limiting parts.

9. The retractable pedestrian bridge for underground transfer machine as claimed in claim 8, characterized in that: The end of the vertical ladder is connected to the slideway via a connecting pin, and the connecting pin is located in the limiting portion in both the use and storage states.

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