Blasting protective net

Abstract

The utility model relates to the technical field of blasting protection, and discloses a blasting protective net which is characterized in that a sleeve is fixedly connected to the upper end of a stand column, a threaded column is movably connected to the interior of the sleeve, a threaded sleeve is movably connected to the threaded column, an arc-shaped connecting plate is fixedly connected to one end of the threaded sleeve, and a first gear is movably connected to the lower end of the threaded column; according to the device, when broken stones fly to the protection direction, the large broken stones are bounced off by the protection net, the small broken stones penetrate through the protection net and fall onto the surface of the rubber mat, and when the blasting impact force is too large, the broken stones are prevented from falling off, so that the broken stones are prevented from falling off. When the rubber mat cannot resist impact force, broken stones break through the water tank, water in the water tank can relieve pressure of the broken stones, so that the broken stones lose the impact force to protect personnel behind the protection device, permeation of tiny broken stones is blocked, and the situation that the broken stones break through the rubber mat and hurt blasting personnel due to the fact that the blasting impact force is too large is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of blasting protection, in particular to a blasting protection net. Background Art

[0002] When conducting regional blasting, in order to protect important buildings or personnel within the blasting range, a protective net is usually set up for protection. The protective net can block larger stones, but cannot block tiny gravel. Small gravel can still pass through the protective net. Although it is very small, it still has strong lethality when the speed is fast enough. It is necessary to improve the protective net to solve these problems. For this reason, a blasting protection net is designed. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the related art at least to a certain extent. To this end, one purpose of the utility model is to provide a blasting protection net, which not only blocks the penetration of tiny gravel, but also avoids the situation where the gravel penetrates the rubber pad due to excessive blasting impact force and injures the blasting personnel.

[0004] According to the blasting protection net proposed by the utility model, the upper end of the column is fixedly connected with a sleeve, the inside of the sleeve is movably connected with a threaded column, the threaded column is movably connected with a threaded sleeve, one end of the threaded sleeve is fixedly connected with an arc-shaped connecting plate, the lower end of the threaded column is movably connected with a first gear, one end of the first gear is meshed with a second gear, one end of the sleeve is movably connected with a first connecting sleeve, and the other end of the first connecting sleeve is movably connected to a water tank.

[0005] Preferably, one end of the second gear is fixedly connected to a handle, and the handle passes through one end of the column.

[0006] Preferably, a flap is hingedly connected to the upper end of the water tank via a hinge.

[0007] Preferably, the lower end of the column is symmetrically fixedly connected to a first connecting plate, one end of the first connecting plate is fixedly connected to a second connecting plate, one end of the second connecting plate is fixedly connected to a protective net, one end of the protective net is fixedly connected to a rubber pad, and one end of the rubber pad is fixedly connected to the second connecting plate.

[0008] Preferably, the rubber pad is fixedly connected with shock-absorbing springs arranged in a rectangular row.

[0009] The beneficial effects of the utility model are as follows: after blasting, when crushed stones fly toward the protection position, the protection net receives the crushed stones, larger crushed stones are bounced off by the protection net, and smaller crushed stones pass through the protection net and fall onto the surface of the rubber pad and fall along the rubber pad; when the blasting impact force is too large and the rubber pad cannot withstand the impact force, the crushed stones penetrate the water tank, and the water inside the water tank can relieve the pressure of the crushed stones, causing the crushed stones to lose their impact force, so as to protect the personnel behind the protection device, which not only blocks the penetration of tiny crushed stones, but also avoids the situation where the blasting personnel are injured by the crushed stones penetrating the rubber pad due to the excessive blasting impact force. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic structural diagram of the blasting protection net proposed by the utility model.

[0011] Figure 2 This is a schematic cross-sectional structure diagram of the blasting protection net proposed by the utility model.

[0012] Figure 3 This is a schematic structural diagram of the blasting protection net proposed by the utility model.

[0013] Figure 4 The utility model is a schematic diagram of the structure of the threaded column of the blasting protection net.

[0014] In the figure: 1. column; 2. sleeve; 3. threaded column; 4. threaded sleeve; 5. arc-shaped connecting plate; 6. first gear; 7. second gear; 8. first connecting sleeve; 9. water tank; 10. handle; 11. hinge; 12. flip cover; 13. first connecting plate; 14. second connecting plate; 15. protective net; 16. rubber pad; 17. shock-absorbing spring. DETAILED DESCRIPTION

[0015] Reference Figure 1-4 , blasting protection net, the upper end of the column 1 is fixedly connected with a sleeve 2, the inside of the sleeve 2 is movably connected with a threaded column 3, the threaded column 3 is movably connected with a threaded sleeve 4, one end of the threaded sleeve 4 is fixedly connected with an arc-shaped connecting plate 5, the lower end of the threaded column 3 is movably connected with a first gear 6, one end of the first gear 6 is meshed with a second gear 7, one end of the sleeve 2 is movably connected with a first connecting sleeve 8, and the other end of the first connecting sleeve 8 is movably connected with a water tank 9.

[0016] Furthermore, a handle 10 is fixedly connected to one end of the second gear 7, and the handle 10 passes through one end of the column 1. By rotating the handle 10, the second gear 7 can be more conveniently engaged with the first gear 6.

[0017] Furthermore, a flip cover 12 is hingedly connected to the upper end of the water tank 9 via a hinge 11 .

[0018] Furthermore, a first connecting plate 13 is symmetrically fixedly connected to the lower end of the column 1, one end of the first connecting plate 13 is fixedly connected to the second connecting plate 14, one end of the second connecting plate 14 is fixedly connected to a protective net 15, one end of the protective net 15 is fixedly connected to a rubber pad 16, and one end of the rubber pad 16 is fixedly connected to the second connecting plate 14, the protective net 15 and the rubber pad 16 are fixedly connected to the column 1 via the second connecting plate 14 and the first connecting plate 13, so that the overall equipment is more secure.

[0019] Furthermore, the rubber pad 16 is fixedly connected with shock-absorbing springs 17 arranged in a rectangular row. The shock-absorbing springs 17 are intended to further improve the buffering effect of the rubber pad 16 .

[0020] When the device is used, the protective device is buried underground through the first connecting plate 13, the flap 12 on the water tank 9 is opened through the hinge 11, and an appropriate amount of water is injected. By turning the handle 19, the second gear 7 engages with the first gear 6, and the threaded sleeve 4 threadedly connected to the threaded column 3 rises (descends) to drive the arc-shaped connecting plate 5 to rise (descend), and the arc-shaped connecting plate 5 drives the water tank 9 to rise (descend) through the first connecting sleeve 8. After the blasting, when the gravel flies to the protective position, the protective net 15 receives the gravel, and the larger gravel is bounced off by the protective net 15, and the smaller gravel passes through the protective net 15 and falls to the surface of the rubber pad 5 and falls along the rubber pad 16. When the blasting impact force is too large and the rubber pad 16 cannot withstand the impact force, the gravel penetrates the water tank, and the water inside the water tank 9 can relieve the pressure of the gravel, so that the gravel loses the impact force to protect the personnel behind the protective device.

Claims

1. Blasting protection net, characterized by: The invention comprises a column (1), wherein the upper end of the column (1) is fixedly connected to a sleeve (2), the sleeve (2) is movably connected to a threaded column (3), the threaded column (3) is movably connected to a threaded sleeve (4), one end of the threaded sleeve (4) is fixedly connected to an arc-shaped connecting plate (5), the lower end of the threaded column (3) is movably connected to a first gear (6), one end of the first gear (6) is meshed with a second gear (7), one end of the sleeve (2) is movably connected to a first connecting sleeve (8), and the other end of the first connecting sleeve (8) is movably connected to a water tank (9).

2. The blasting protection net according to claim 1, characterized in that: One end of the second gear (7) is fixedly connected to a handle (10), and the handle (10) passes through one end of the column (1).

3. The blasting protection net according to claim 1, characterized in that: The upper end of the water tank (9) is hingedly connected to a flip cover (12) via a hinge (11).

4. The blasting protection net according to claim 1, characterized in that: The lower end of the upright column (1) is symmetrically fixedly connected to a first connecting plate (13), one end of the first connecting plate (13) is fixedly connected to a second connecting plate (14), one end of the second connecting plate (14) is fixedly connected to a protective net (15), one end of the protective net (15) is fixedly connected to a rubber pad (16), and one end of the rubber pad (16) is fixedly connected to the second connecting plate (14).

5. The blasting protection net according to claim 4, characterized in that: Shock-absorbing springs (17) arranged in a rectangular row are fixedly connected inside the rubber pad (16).

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