Warning devices at mine blasting sites

Abstract

This utility model relates to the field of mining blasting technology and discloses a warning device for mining blasting sites, including two support frames and warning tapes. A tape reel is fixedly connected to the upper end of the outer wall of each support frame. The two tape reels have warning tapes arranged in a staggered manner at their pull-out openings. A latch is provided on the upper end of one side of the outer wall of each tape reel. A positive magnetic soft tape is fixedly connected to the upper and lower ends of the outer wall of one warning tape, and a negative magnetic soft tape is fixedly connected to the upper and lower ends of the outer wall of the other warning tape. A connecting rope is fixedly connected to the top of each tape reel, and a locking plate is fixedly connected to one end of each connecting rope. A slot is formed through the middle of the locking plate wall. A locking rod with a diameter matching the locking slot diameter is fixedly connected to the connecting end of each warning tape. A round block is fixedly connected to the top of each locking rod. The bidirectional conical cross-section design of the locking plate and slot of this utility model can further enhance the tightness of the fit between the positive and negative magnetic soft tapes and significantly improve the isolation and sealing performance.

Description

Technical Field

[0001] This utility model relates to the field of mining blasting technology, specifically to a warning device for mining blasting sites. Background Technology

[0002] Mining blasting is a technique that uses the explosive energy of explosives to break rocks and ore, extract minerals, or carry out engineering operations. It is widely used in mining, tunnel excavation, and other similar scenarios.

[0003] Because blasting generates shock waves, flying rocks, and noise, it poses a serious threat to surrounding personnel and equipment, and the blasting area requires strict control. Warning devices, through warning tapes, magnetic connections, and other means, create physical isolation and visual warnings, clearly delineating the danger zone, preventing unauthorized personnel from entering, and regulating the work area to ensure the safe and orderly conduct of blasting. They are an important measure for mine blasting safety management.

[0004] In mining blasting operations, traditional warning devices often use pillars and warning lines to form an isolation system. However, existing warning lines are mostly made of ordinary cloth materials, which have low strength and poor wind resistance, and are easily damaged or displaced by external forces, causing the warning range to become ineffective. Utility Model Content

[0005] The purpose of this invention is to provide a warning device for mining blasting sites to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a warning device for a mine blasting site, comprising two support frames and warning tapes. Each support frame has a tape reel fixedly connected to its upper outer wall. The two tape reels have warning tapes staggered at their pull-out openings. Each tape reel has a slot on its upper outer wall. One warning tape has a positive magnetic soft tape fixedly connected to both the upper and lower ends of its outer wall, while the other warning tape has a negative magnetic soft tape fixedly connected to both the upper and lower ends of its outer wall. A connecting rope is fixedly connected to the top of each tape reel, and a locking plate is fixedly connected to one end of each connecting rope. A slot is formed through the middle of the locking plate's wall.

[0007] Preferably, each of the support frames is fixedly connected to a base plate at its bottom end, and each of the base plates is threadedly connected to a fixing rod at both ends.

[0008] Preferably, each of the warning tape connection ends is fixedly connected to a locking rod with a diameter matching the locking clip diameter, and each locking rod has a round block fixedly connected to its top end.

[0009] Preferably, the positive magnetic soft strip and the negative magnetic soft strip are magnetically connected.

[0010] Preferably, the cross-sections at both ends of the slot are cone-shaped in opposite directions.

[0011] Compared with existing technologies, the advantages of this utility model are: the warning tape achieves a stable connection through the precise fit between the clip and the slot; the bidirectional conical cut design of the card plate and slot further enhances the tightness of the positive and negative magnetic soft tape, significantly improving the isolation and sealing performance, and is simple and easy to operate. The overall structure addresses the shortcomings of traditional warning tapes, such as insufficient strength and easy loosening, by using multiple reinforcement designs to enhance wind resistance and durability. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram showing the disassembled structure of the warning tape and the tape reel of this utility model;

[0014] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0015] Figure 4 This is a schematic diagram of the card plate planar structure of this utility model.

[0016] In the diagram: 1. Support frame; 11. Base plate; 12. Fixing rod; 2. Reel box; 201. Bayonet; 21. Warning tape; 22. Positive magnetic soft tape; 220. Negative magnetic soft tape; 23. Locking rod; 24. Round block; 3. Locking plate; 301. Locking slot; 31. Connecting rope. Detailed Implementation

[0017] Please see Figure 1-4 The present invention provides the following technical solution:

[0018] Example 1: A warning device for a mine blasting site includes two support frames 1 and a warning strip 21. The bottom of each support frame 1 is fixedly connected to a base plate 11. Both ends of the base plate 11 are threadedly connected to a fixing rod 12. The connecting ends of the warning strip 21 are fixedly connected to a clamping rod 23 with a diameter matching that of the clamping slot 201. The top of each clamping rod 23 is fixedly connected to a round block 24.

[0019] In use, place the two support frames 1 on both sides of the blasting area, and screw the fixing rods 12 at both ends of the base plate 11 into the ground to stabilize the overall structure. Pull out the warning tape 21 from the tape box 2 of one of the support frames 1, pick up the round block 24, and insert it into the slot 201 of the tape box 2 of the other support frame 1 with the locking rod 23 at its connecting end to form a basic isolation warning, which is suitable for simple blasting area warning.

[0020] Example 2: The technical solution of this example, which differs from Example 1, includes: A tape reel 2 is fixedly connected to the upper end of the outer wall of the support frame 1; two tape reels 2 have warning tapes 21 staggered at their pull-out openings; a slot 201 is provided on the upper end of the outer wall of each tape reel 2; a positive magnetic soft tape 22 is fixedly connected to the upper and lower ends of the outer wall of one warning tape 21, and a negative magnetic soft tape 220 is fixedly connected to the upper and lower ends of the outer wall of the other warning tape 21; a connecting rope 31 is fixedly connected to the top of each tape reel 2, and one end of each connecting rope 31 is fixed... A card plate 3 is connected, and a card slot 301 is opened through the middle of the wall of the card plate 3. The positive magnetic soft strip 22 and the negative magnetic soft strip 220 are magnetically connected. The two ends of the card slot 301 are both set in a cone shape in opposite directions. The tape box 2 and the warning tape 21 are composed of a roller, a spiral spring (spring spring) and a limiting and guiding structure. When the warning tape 21 is pulled out, the roller rotates to store energy in the internal spiral spring. When it is retracted, after the fixation is released, the spring releases energy to drive the roller to reverse and retract the warning tape 21. The principle is the same as that of the area isolation tape.

[0021] In use, first fix the two support frames 1 with the base plate 11 and the fixing rod 12 to ensure that the tape reel 2 is in the correct position. Pull out the warning tape 21 from the two tape reels 2 respectively (the warning tapes 21 at both ends are staggered and stick together when pulled out). Then insert the locking lever 23 of one side of the warning tape 21 into the locking slot 201 of the other side of the tape reel 2 to fix it. At this time, the positive magnetic soft tape 22 and the negative magnetic soft tape 220 of the two warning tapes 21 are magnetically attracted. Then, the locking slot 301 of the locking plate 3 is inserted into the outer end of the two warning tapes 21 (the upper and lower end tapes are tapered to enhance the tight fit between the positive magnetic soft tape 22 and the negative magnetic soft tape 220), which strengthens the stability of the warning tape 21. When retracting, pull out the locking lever 23. The spiral spring in the tape reel 2 drives the reel to rotate and automatically retract the warning tape 21. It is suitable for complex blasting scenarios that require enhanced sealing and convenient operation.

Claims

1. A mine blasting site warning device, comprising two support frames (1) and a warning tape (21), characterized in that: The upper end of the outer wall of the support frame (1) is fixedly connected to a tape reel box (2). The two tape reels (2) have warning tapes (21) staggered at the pull-out opening ends. The upper end of the outer wall of one side of the tape reel box (2) is provided with a slot (201). The upper and lower ends of the outer wall of one of the warning tapes (21) are fixedly connected to a positive magnetic soft tape (22). The upper and lower ends of the outer wall of the other warning tape (21) are fixedly connected to a negative magnetic soft tape (220). The top of the tape reel box (2) is fixedly connected to a connecting rope (31). One end of the connecting rope (31) is fixedly connected to a card plate (3). The middle of the wall of the card plate (3) is provided with a card slot (301).

2. A mine blast site warning device according to claim 1, characterised in that: The bottom of each support frame (1) is fixedly connected to a base plate (11), and both ends of the base plate (11) are threadedly connected to a fixing rod (12).

3. The mine blasting site warning device of claim 1, wherein: The warning tape (21) is fixedly connected to a lever (23) with a diameter matching that of the buckle (201), and a round block (24) is fixedly connected to the top of the lever (23).

4. The warning device for mine blasting sites according to claim 1, characterized in that: The positive magnetic soft strip (22) and the negative magnetic soft strip (220) are magnetically connected.

5. The mine blasting site warning device of claim 1, wherein: The two ends of the slot (301) are both cone-shaped with opposite directions.

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