Mine safety fence

Abstract

The utility model discloses a mine safety fence, which relates to the technical field of fences and comprises two supporting rods, one side of each supporting rod is fixedly connected with a first connecting block, a rotating groove is formed in each first connecting block, and two corresponding rotating shafts are rotatably connected in each rotating groove through bearings. A first connecting block is arranged in the first sliding groove, a second sliding rod is arranged in the second sliding groove, two rotating shafts are arranged in the first sliding groove, a transverse rod is fixedly connected to the outer sides of the two rotating shafts and located in the rotating groove, a first internal groove is formed in the first connecting block, and one end of each rotating shaft extends into the first internal groove. According to the mine safety fence, a second telescopic spring is driven to contract, meanwhile, a plurality of limiting rods are driven to slide towards the outer side of an inserting groove, the limiting rods are pulled out of the interior of a second limiting groove, limiting of a transverse rod and a rotating shaft is relieved, then the angle of the transverse rod can be adjusted, and the applicability of the mine safety fence is improved.

Description

Technical Field

[0001] This utility model relates to the field of fence technology, specifically a mine safety fence. Background Technology

[0002] Mines mainly include pitheads, shafts, and open-pit mines. Mining is the technology and science of extracting mineral resources from within the earth's crust and on its surface. The main raw materials for mining and processing are naturally occurring ore bodies, and the location of a mine cannot be freely chosen. Mining work generally takes place in open-pit or underground mines, involving a large workload, poor working conditions, and low safety. Especially in underground mines, due to the complex underground structure and poor lighting, safety fences are required in dangerous areas such as deep pits and rockfall zones to prevent workers unfamiliar with the environment from accidentally entering.

[0003] The terrain in typical mines is uneven, but the support height of most existing fences and the inclination of the guardrails are not easy to adjust. During installation, they need to be installed on relatively flat ground. If installed in an uneven mine, their stability will be reduced, thus decreasing their practicality. Therefore, we propose a mine safety fence. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a mine safety fence, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a mine safety fence, comprising two support rods, a first connecting block fixedly connected to one side of each support rod, a rotating groove inside the first connecting block, two corresponding rotating shafts rotatably connected inside the rotating groove via bearings, a crossbar fixedly connected to the outer side of the two rotating shafts and inside the rotating groove, a first internal groove inside the first connecting block, one end of each rotating shaft extending into the first internal groove, a limiting plate fixedly connected to the outer side of each rotating shaft and inside the first internal groove, a plurality of second limiting grooves inside the limiting plate, a plurality of insertion grooves inside the first connecting block and on one side of the first internal groove, a limiting rod slidably connected inside the insertion groove, one end of each limiting rod being inserted into the second limiting groove.

[0006] Preferably, the first connecting block has two corresponding second sliding grooves inside, and a second sliding rod is slidably connected inside the second sliding groove. One end of each of the two second sliding rods extends to the outside of the first connecting block and is fixedly connected to a pull plate. A second telescopic spring is provided outside the second sliding rod and inside the second sliding groove. One end of the second telescopic spring is fixedly connected to the outside of the second sliding rod, and the other end of the second telescopic spring is fixedly connected to the inner wall of the second sliding groove. A plurality of limiting rods are fixedly connected to one side of the pull plate. Through the cooperation of the second telescopic spring, the pull plate, and the limiting rods, the limiting rods can be limited so that they are inserted into the second limiting groove, thereby limiting the limiting disc, the rotating shaft, and the crossbar.

[0007] Preferably, the support rod has a first lifting groove inside, and a second lifting groove is formed inside the support rod and on one side of the first lifting groove. A first lifting rod is slidably connected inside the first lifting groove, and a second lifting rod is fixedly connected to one side of the first lifting rod. The second lifting rod is slidably connected inside the second lifting groove, and a base is fixedly connected to the bottom of the second lifting rod. Through the cooperation of the support rod, the first lifting groove, the second lifting groove, the first lifting rod, and the second lifting rod, the height of the support rod can be easily adjusted.

[0008] Preferably, a first sliding groove is formed inside the support rod and on one side of the first lifting groove. A first slider is slidably connected inside the first sliding groove. Two corresponding first sliding rods are fixedly connected inside the first sliding groove. The first sliding rods pass through the first slider and are slidably connected to it. A first telescopic spring is provided on the outside of the first sliding rod and inside the first sliding groove. One end of the first telescopic spring is fixedly connected to the inner wall of the first sliding groove, and the other end of the first telescopic spring is fixedly connected to one side of the first slider. A pull rod is fixedly connected to one side of the first slider, and one end of the pull rod extends to the outside of the support rod. Through the cooperation of the first slider, the first sliding rod, and the first telescopic spring, the first slider can be limited to ensure the stability of the first slider when inserted into the first limiting groove.

[0009] Preferably, the crossbar has a second internal groove inside, and multiple protective bars are rotatably connected inside the two second internal grooves.

[0010] Preferably, the support rod has a connecting groove inside, and a connecting rod is provided inside the connecting groove. The connecting rod is fixed inside the connecting groove by fixing bolts.

[0011] Preferably, the first lifting rod has multiple first limiting grooves inside, and one end of the first slider is inserted into the inside of the first limiting groove.

[0012] This utility model provides a mine safety fence, which has the following beneficial effects:

[0013] 1. This mine safety fence, by manually pulling the pull plate, causes the second sliding rod to slide inside the second sliding groove, causing the second telescopic spring to retract. At the same time, it causes multiple limit rods to slide outwards from the insertion groove, pulling the limit rods out of the second limit groove, releasing the restriction on the crossbar and the rotating shaft, thereby allowing the angle of the crossbar to be adjusted, improving the applicability of the mine safety fence.

[0014] 2. This mine safety fence, by manually pulling the lever, causes the first slider to slide into the first groove, causing the first telescopic spring to contract and pull the first slider out from the first limiting groove, thereby releasing the limitation on the first lifting rod. This allows the support rod, the first lifting rod, and the second lifting rod to retract. When raising the support rod, lifting the support rod causes the base to slide the second lifting rod and the first lifting rod outward under the action of gravity, thereby pushing the first slider into the first groove, causing the first telescopic spring to contract. After the height adjustment is completed, through the interaction of the first limiting groove and the first slider, the first telescopic spring rebounds and pushes the first slider back to its original position, allowing the first slider to insert into the first limiting groove, thereby limiting the first lifting rod and preventing it from retracting, thus improving the applicability of the mine safety fence. Attached Figure Description

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

[0016] Figure 2 This is a schematic diagram of the internal structure of the support rod of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the first connecting block of this utility model;

[0018] Figure 4 This utility model Figure 3 Enlarged view of point A in the image;

[0019] Figure 5 This is a schematic diagram of the internal structure of the crossbar of this utility model.

[0020] In the diagram: 1. Support rod; 2. First lifting groove; 3. Second lifting groove; 4. First lifting rod; 5. Second lifting rod; 6. Base; 7. First limiting groove; 8. First sliding groove; 9. First slider; 10. First sliding rod; 11. First telescopic spring; 12. First connecting block; 13. Rotating groove; 14. Rotating shaft; 15. Crossbar; 16. First internal groove; 17. Limiting plate; 18. Second limiting groove; 19. Second sliding groove; 20. Second sliding rod; 21. Second telescopic spring; 22. Pull plate; 23. Limiting rod; 24. Insertion groove; 25. Connecting groove; 26. Connecting rod; 27. Second internal groove; 28. Protective rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figures 1 to 5 This utility model provides a technical solution: a mine safety fence, including two support rods 1, a first connecting block 12 fixedly connected to one side of the support rod 1, a rotating groove 13 opened inside the first connecting block 12, two corresponding rotating shafts 14 rotatably connected inside the rotating groove 13 through bearings, a crossbar 15 fixedly connected to the outside of the two rotating shafts 14 and inside the rotating groove 13, a first internal groove 16 opened inside the first connecting block 12, one end of the rotating shaft 14 extending into the inside of the first internal groove 16, a limiting plate 17 fixedly connected to the outside of the rotating shaft 14 and inside the first internal groove 16, a plurality of second limiting grooves 18 opened inside the limiting plate 17, a plurality of insertion grooves 24 opened inside the first connecting block 12 and on one side of the first internal groove 16, a limiting rod 23 slidably connected inside the insertion groove 24, one end of the limiting rod 23 being inserted into the inside of the second limiting groove 18;

[0023] The first connecting block 12 has two corresponding second sliding grooves 19 inside. The second sliding rods 20 are slidably connected inside the second sliding grooves 19. One end of each second sliding rod 20 extends to the outside of the first connecting block 12 and is fixedly connected to a pull plate 22. A second telescopic spring 21 is provided on the outside of the second sliding rod 20 and inside the second sliding groove 19. One end of the second telescopic spring 21 is fixedly connected to the outside of the second sliding rod 20, and the other end of the second telescopic spring 21 is fixedly connected to the inner wall of the second sliding groove 19. Multiple limiting rods 23 are fixedly connected to one side of the pull plate 22. Through the cooperation of the second telescopic spring 21, the pull plate 22 and the limiting rods 23, the limiting rods 23 can be limited, so that the limiting rods 23 are inserted into the inside of the second limiting groove 18, thereby limiting the limiting plate 17, the rotating shaft 14 and the crossbar 15.

[0024] The support rod 1 has a first lifting groove 2 inside, and a second lifting groove 3 is provided inside the support rod 1 and on one side of the first lifting groove 2. A first lifting rod 4 is slidably connected inside the first lifting groove 2, and a second lifting rod 5 is fixedly connected to one side of the first lifting rod 4. The second lifting rod 5 is slidably connected inside the second lifting groove 3, and a base 6 is fixedly connected to the bottom of the second lifting rod 5. Through the cooperation of the support rod 1, the first lifting groove 2, the second lifting groove 3, the first lifting rod 4, and the second lifting rod 5, the height of the support rod 1 can be easily adjusted.

[0025] A first sliding groove 8 is provided inside the support rod 1 and on one side of the first lifting groove 2. A first slider 9 is slidably connected inside the first sliding groove 8. Two corresponding first sliding rods 10 are fixedly connected inside the first sliding groove 8. The first sliding rods 10 pass through the first slider 9 and are slidably connected to it. A first telescopic spring 11 is provided on the outside of the first sliding rod 10 and inside the first sliding groove 8. One end of the first telescopic spring 11 is fixedly connected to the inner wall of the first sliding groove 8, and the other end of the first telescopic spring 11 is fixedly connected to one side of the first slider 9. A pull rod is fixedly connected to one side of the first slider 9, and one end of the pull rod extends to the outside of the support rod 1. Through the cooperation of the first slider 9, the first sliding rod 10 and the first telescopic spring 11, the first slider 9 can be limited to ensure the stability of the first slider 9 inserted into the first limiting groove 7.

[0026] The crossbar 15 has a second internal groove 27 inside, and multiple protective bars 28 are rotatably connected inside the two second internal grooves 27.

[0027] The support rod 1 has a connecting groove 25 inside, and a connecting rod 26 is provided inside the connecting groove 25. The connecting rod 26 is fixed inside the connecting groove 25 by fixing bolts. The first lifting rod 4 has multiple first limiting grooves 7 inside, and one end of the first slider 9 is inserted into the first limiting groove 7.

[0028] In summary, when using this mine safety fence, workers manually pull the pull plate 22 according to the ground conditions of the usage scenario, causing the second sliding rod 20 to slide inside the second sliding groove 19, which causes the second telescopic spring 21 to retract. At the same time, it causes multiple limiting rods 23 to slide outwards from the insertion groove 24, pulling the limiting rods 23 out of the second limiting groove 18, releasing the restriction on the crossbar 15 and the rotating shaft 14. This allows for adjustment of the angle of the crossbar 15. Simultaneously, the support rod 1 can be manually lifted, causing the base 6 to drive the second lifting rod 5 under the action of gravity. The first lifting rod 4 slides outward to the support rod 1, thereby pushing the first slider 9 to slide inward to the first groove 8, causing the first telescopic spring 11 to contract. After the height adjustment is completed, the first telescopic spring 11 rebounds and pushes the first slider 9 to reset through the cooperation of the first limiting groove 7 and the first slider 9, so that the first slider 9 is inserted into the first limiting groove 7, thereby limiting the first lifting rod 4 and preventing the first lifting rod 4 from retracting. When connecting multiple fences, the connecting rod 26 is snapped into the inside of the two connecting grooves 25 and then fixed with fixing bolts.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A mine safety fence, comprising two support rods (1), characterized in that: A first connecting block (12) is fixedly connected to one side of the support rod (1). A rotating groove (13) is provided inside the first connecting block (12). Two corresponding rotating shafts (14) are rotatably connected inside the rotating groove (13) through bearings. A crossbar (15) is fixedly connected to the outside of the two rotating shafts (14) and inside the rotating groove (13). A first internal groove (16) is provided inside the first connecting block (12). One end of the rotating shaft (14) extends into the inside of the first internal groove (16). A limiting plate (17) is fixedly connected to the outside of the rotating shaft (14) and inside the first internal groove (16). A plurality of second limiting grooves (18) are provided inside the limiting plate (17). A plurality of insertion grooves (24) are provided inside the first connecting block (12) and on one side of the first internal groove (16). A limiting rod (23) is slidably connected inside the insertion groove (24). One end of the limiting rod (23) is inserted into the inside of the second limiting groove (18).

2. The mine safety fence according to claim 1, characterized in that: The first connecting block (12) has two corresponding second sliding grooves (19) inside. The second sliding grooves (19) are slidably connected to the second sliding rods (20). One end of each of the two second sliding rods (20) extends to the outside of the first connecting block (12) and is fixedly connected to a pull plate (22). A second telescopic spring (21) is provided on the outside of the second sliding rods (20) and inside the second sliding grooves (19). One end of the second telescopic spring (21) is fixedly connected to the outside of the second sliding rods (20), and the other end of the second telescopic spring (21) is fixedly connected to the inner wall of the second sliding grooves (19). A plurality of the limiting rods (23) are fixedly connected to one side of the pull plate (22).

3. A mine safety fence according to claim 1, characterized in that: The support rod (1) has a first lifting groove (2) inside, and a second lifting groove (3) is provided inside the support rod (1) and on one side of the first lifting groove (2). A first lifting rod (4) is slidably connected inside the first lifting groove (2). A second lifting rod (5) is fixedly connected to one side of the first lifting rod (4). The second lifting rod (5) is slidably connected inside the second lifting groove (3). A base (6) is fixedly connected to the bottom of the second lifting rod (5).

4. A mine safety fence according to claim 3, characterized in that: A first sliding groove (8) is provided inside the support rod (1) and on one side of the first lifting groove (2). A first slider (9) is slidably connected inside the first sliding groove (8). Two corresponding first sliding rods (10) are fixedly connected inside the first sliding groove (8). The first sliding rod (10) passes through the first slider (9) and is slidably connected to it. A first telescopic spring (11) is provided on the outside of the first sliding rod (10) and inside the first sliding groove (8). One end of the first telescopic spring (11) is fixedly connected to the inner wall of the first sliding groove (8), and the other end of the first telescopic spring (11) is fixedly connected to one side of the first slider (9). A pull rod is fixedly connected to one side of the first slider (9), and one end of the pull rod extends to the outside of the support rod (1).

5. A mine safety fence according to claim 1, characterized in that: The crossbar (15) has a second internal groove (27) inside, and multiple protective bars (28) are rotatably connected inside the two second internal grooves (27).

6. A mine safety fence according to claim 1, characterized in that: The support rod (1) has a connecting groove (25) inside, and a connecting rod (26) is provided inside the connecting groove (25). The connecting rod (26) is fixed inside the connecting groove (25) by a fixing bolt.

7. A mine safety fence according to claim 4, characterized in that: The first lifting rod (4) has multiple first limiting grooves (7) inside, and one end of the first slider (9) is inserted into the inside of the first limiting groove (7).

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