A splicable steel mesh protective wall for open-air blasting

Abstract

The invention discloses a splicable steel mesh protective wall for open-air blasting, comprising a prefabricated cement cross seat, wherein a plurality of the prefabricated cement cross seats are arranged in a transverse arrangement, a prefabricated steel plate is pre-buried in the middle of the upper end of the prefabricated cement cross seat, a supporting steel plate is welded to the upper end of the prefabricated steel plate, a wall steel plate is clamped in the strip-shaped slots, a gap is generated between two adjacent wall steel plates, the gaps are blocked by T-shaped blocking plates, and a plurality of rectangular installation grooves are opened through the wall steel plates front and back; the splicable steel mesh protective wall for open-air blasting can increase the stability of the protective wall after installation, can effectively improve the overall strength of the protective wall, has higher safety, and the overall installation and disassembly of the protective wall are more convenient, which reduces the construction difficulty and saves labor and time.

Description

Technical Field

[0001] The invention relates to the field of mine blasting, in particular to a splicable steel mesh protective wall for open-pit blasting. Background Art

[0002] Blasting is a technology that uses the compression, loosening, destruction, throwing and killing effects produced by the explosion of explosives in air, water, soil and rock media or objects to achieve the desired purpose. Open-air blasting is often used for mining blasting. Protective walls need to be set up at the open-air blasting site. However, most protective walls are troublesome to install as a whole, require high construction intensity, waste labor and time, and are inconvenient to disassemble later. For this reason, we propose a splicable steel mesh protective wall for open-air blasting. Summary of the invention

[0003] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a splicable steel mesh protective wall for open-air blasting, comprising a prefabricated cement cross seat, wherein a plurality of the prefabricated cement cross seats are provided, and the plurality of prefabricated cement cross seats are arranged in a transverse arrangement, and a prefabricated steel plate is pre-buried in the middle of the upper end of the prefabricated cement cross seat, and a supporting steel plate is welded to the upper end of the prefabricated steel plate, and a strip groove is transversely opened in the middle of the upper end of the supporting steel plate, and a wall steel plate is clamped in the strip groove, and the strip groove is provided with a wall steel plate. The two ends of the steel plate are provided with a plurality of L-shaped fixing plates, and the vertical plates of the L-shaped fixing plates are fitted with the rear side of the steel plate, and the vertical plates of the L-shaped fixing plates are fixed to the steel plate by fixing bolts 1. The middle part of the steel plate is provided with a rectangular mounting groove, and two rectangular protective steel nets are provided in the rectangular mounting groove, and the four sides of the rectangular protective steel nets are welded and fixed to the four groove walls of the rectangular mounting groove. Support steel plates are welded at the two ends of the rear side of the supporting steel plate, and two limiting plates are welded at one end of the upper surface of the supporting steel plate. The two limiting ear plates are each provided with an oblique reinforcement strut movably clamped between the two limiting ear plates, and the oblique reinforcement strut is movably hinged to the two limiting ear plates through an axis, two fixed ear plates are fixed to the middle part of the two ends of the rear side of the fence steel plate, the end of the oblique reinforcement strut away from the axis is clamped between the corresponding two fixed ear plates, and the oblique reinforcement strut is fixed to the corresponding two fixed ear plates through fixing bolts III, and gaps are generated between two adjacent fence steel plates, which are blocked by T-shaped blocking plates.

[0004] Preferably, one side of the T-shaped blocking plate is in contact with the back sides of two adjacent fence steel plates, and the T-shaped blocking plate and the fence steel plates are connected and fixed by fixing bolts II.

[0005] Preferably, the rectangular mounting grooves are all opened vertically, and the upper and lower ends of the rectangular mounting grooves are at least ten centimeters away from the upper and lower ends of the wall steel plate. The number of the rectangular mounting grooves opened is at least four, and the distance between two adjacent rectangular mounting grooves is at least twenty centimeters.

[0006] Preferably, the fence steel plates are all configured as rectangular steel plates, the length of the fence steel plates are equal to the length of the supporting steel plates and the prefabricated cement cross seats, the length of the strip grooves are equal to the length of the supporting steel plates, and the depth of the strip grooves is half the thickness of the supporting steel plates.

[0007] Preferably, the inclination angles of the oblique reinforcement struts are all 60-75 degrees, and the upper surfaces of the strip sealing plates are aligned with the upper surfaces of the wall steel plates.

[0008] Technical effects and advantages of the present invention: The present invention has a reasonable structural design, and the splicable steel mesh protective wall for open-air blasting has the following advantages:

[0009] 1. The steel mesh protective wall uses a prefabricated cement cross seat as the base. The prefabricated cement cross seat can be buried in the soil, and the part above the supporting steel plate is exposed to the ground. The adjacent wall steel plates are arranged and spliced ​​in sequence, and the gaps are blocked by T-shaped blocking plates, which can increase the stability of the protective wall after installation. In addition, the splicing installation method can make assembly and disassembly more convenient and have strong turnover;

[0010] 2. The steel mesh protective wall is installed by a sleeve-type installation. The wall steel plate is inserted into the threaded rod from top to bottom and locked in the strip installation groove by a locking nut. After locking, the strip installation groove is sealed by a strip sealing plate. The fixing bolts I and II used for fixing are both arranged on the back of the wall steel plate, so that the wall steel plate can only be disassembled from the back, preventing criminals from disassembling the protective wall from the outside, which is safer, and the overall installation and disassembly of the protective wall is more convenient, reducing the construction difficulty, saving labor and time. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a front schematic diagram of the structure of the present invention.

[0012] Figure 2 It is a schematic diagram of the back side of the structure of the present invention.

[0013] Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure in the middle.

[0014] Figure 4 It is a schematic diagram of the steel plate for the fence of the present invention.

[0015] Figure 5 For the present invention Figure 4 Enlarged schematic diagram of the structure at point B in the middle.

[0016] Figure 6 It is a schematic diagram of the threaded rod structure of the present invention.

[0017] Figure 7 It is a schematic diagram of the screw perforation of the structure of the present invention.

[0018] In the figure: 1. Prefabricated cement cross seat; 2. Embedded steel plate; 3. Supporting steel plate; 4. Strip groove; 5. Fence steel plate; 6. T-shaped blocking plate; 7. Rectangular mounting groove; 8. Strip mounting groove; 9. Strip sealing plate; 10. L-shaped fixing plate; 11. Oblique reinforcement strut; 12. Supporting steel plate; 13. Limiting ear plate; 14. Shaft; 15. Threaded rod; 16. Locking nut; 17. Anti-slip gasket; 18. Fixing bolt I; 19. Fixing bolt II; 20. Fixing ear plate; 21. Fixing bolt III; 22. Screw hole 22; Rectangular protective steel mesh 23. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] The present invention provides Figure 1-7The present invention shows a splicable steel mesh protective wall for open-air blasting, comprising a prefabricated cement cross seat 1, wherein a plurality of prefabricated cement cross seats 1 are provided, and the plurality of prefabricated cement cross seats 1 are arranged in a transverse arrangement, and a prefabricated steel plate 2 is pre-buried in the middle of the upper end of the prefabricated cement cross seat 1, and a supporting steel plate 3 is welded to the upper end of the prefabricated steel plate 2, and a strip groove 4 is transversely opened in the middle of the upper end of the supporting steel plate 3, and a wall steel plate 5 is clamped in the strip groove 4, and threaded rods 15 are welded at both ends of the strip groove 4, and both ends of the wall steel plate 5 are vertically opened. A screw through hole 22 is provided, and a strip installation groove 8 is opened at the upper end of the fence steel plate 5. Two threaded rods 15 pass through the two screw through holes 22 and extend into the strip installation groove 8. The upper ends of the threaded rods 15 are locked and fastened by locking nuts 16, and anti-slip pads 17 are sleeved on the threaded rods 15 below the locking nuts 16. A strip sealing plate 9 is provided above the threaded rods 15 in the strip installation groove 8. A plurality of L-shaped fixing plates 10 are fixedly connected to the upper ends of the strip sealing plates 9. The vertical plates of the L-shaped fixing plates 10 are all The rear side of the fence steel plate 5 is fitted, and the vertical plate of the L-shaped fixing plate 10 is fixed to the fence steel plate 5 by fixing bolts 118. A rectangular mounting groove 7 is opened in the middle of the fence steel plate 5. Two rectangular protective steel meshes 23 are arranged in the rectangular mounting groove 7, and the four sides of the rectangular protective steel meshes 23 are welded and fixed to the four groove walls of the rectangular mounting groove 7. Support steel plates 12 are welded to both ends of the rear side of the supporting steel plate 3. Two limiting ear plates 13 are welded to one end of the upper surface of the supporting steel plate 12. The two limiting ear plates 13 are welded to the There are movably clamped oblique reinforcement struts 11 in between, and the oblique reinforcement struts 11 and the two limit ear plates 13 are movably hinged through the axis 14, and two fixed ear plates 20 are fixed to the middle part of the two ends of the rear side of the wall steel plate 5, and the ends of the oblique reinforcement struts 11 away from the axis 14 are clamped between the corresponding two fixed ear plates 20, and the oblique reinforcement struts 11 and the corresponding two fixed ear plates 20 are fixed by fixing bolts III21, and gaps are generated between two adjacent wall steel plates 5, and the gaps are blocked by T-shaped blocking plates 6.

[0021] Furthermore, one side of the T-shaped blocking plate 6 is in contact with the back sides of two adjacent wall steel plates 5 , and the T-shaped blocking plate 6 and the wall steel plates 5 are connected and fixed by fixing bolts II19 . The T-shaped blocking plate 6 is used to block the gap between the two adjacent wall steel plates 5 .

[0022] Furthermore, the rectangular mounting grooves 7 are all opened vertically, and the upper and lower ends of the rectangular mounting grooves 7 are at least ten centimeters away from the upper and lower ends of the wall steel plate 5. There are at least four rectangular mounting grooves 7, and the distance between two adjacent rectangular mounting grooves 7 is at least twenty centimeters. The double-layer rectangular protective steel mesh 23 installed in the rectangular mounting grooves 7 can play a good buffering and blocking role for the gravel falling after blasting.

[0023] Furthermore, the fence steel plates 5 are all configured as rectangular steel plates, the length of the fence steel plates 5 is equal to the length of the supporting steel plates 3 and the prefabricated cement cross seat 1, the length of the strip grooves 4 is equal to the length of the supporting steel plates 3, and the depth of the strip grooves 4 is half of the thickness of the supporting steel plates 3. It should be noted that the prefabricated cement cross seat 1 is formed by pouring concrete through a mold, and the supporting steel plates 3 are inserted into the mold before pouring the mold to wait for the concrete to solidify and form; specifically, the strip grooves 4 are used to clamp the bottom of the fence steel plates 5, which is convenient for the installation of the fence steel plates 5 and the stability of the installation.

[0024] Furthermore, the inclined angles of the oblique reinforcement struts 11 are all 60-75 degrees, and the upper surfaces of the strip sealing plates 9 are aligned with the upper surfaces of the wall steel plates 5. The oblique reinforcement struts 11 play a good reinforcing and supporting role on the wall steel plates 5, thereby increasing their stability.

[0025] Working principle of the present invention:

[0026] The steel mesh protective wall is based on a prefabricated cement cross seat 1 as a base. The prefabricated cement cross seat 1 can be buried in the soil, and the upper part of the supporting steel plate 3 is exposed above the ground. The adjacent wall steel plates 5 are arranged and spliced ​​in sequence, and the gaps are blocked by T-shaped blocking plates 6, which can increase the stability of the protective wall after installation; a rectangular installation groove 7 is arranged on the steel mesh protective wall, and a double-layer rectangular protective steel mesh 23 is installed in the rectangular installation groove 7, which can play a good buffering and blocking role for the rubble falling after blasting; with the stable installation of the prefabricated cement cross seat 1 and the oblique reinforcement strut 11 set on the back, the overall stability of the protective wall can be effectively improved. Compressive strength: The steel mesh protective wall is installed in a sleeve-type manner. The wall steel plate 5 is inserted into the threaded rod 15 from top to bottom and is locked in the strip mounting groove 8 by a locking nut 16. After locking, the strip mounting groove 8 is sealed by a strip sealing plate 9. The fixing bolts I18 and II19 used for fixing are both arranged on the back of the wall steel plate 5, so that the wall steel plate 5 can only be disassembled from the back, preventing criminals from disassembling the protective wall from the outside, which is safer, and the overall installation and disassembly of the protective wall are more convenient, reducing the construction difficulty, saving labor and time.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A splicable steel mesh protective wall for open-air blasting, comprising a prefabricated cement cross seat (1), characterized in that: The prefabricated cement cross seats (1) are provided in plurality, and the plurality of prefabricated cement cross seats (1) are arranged in a transverse arrangement. A prefabricated steel plate (2) is pre-buried in the middle of the upper end of each prefabricated cement cross seat (1). A supporting steel plate (3) is welded to the upper end of each prefabricated steel plate (2). A strip groove (4) is transversely opened in the middle of the upper end of each supporting steel plate (3). A wall steel plate (5) is clamped in each of the strip grooves (4). Threaded rods (15) are welded to both ends of each strip groove (4). Screw holes (22) are vertically opened at both ends of each wall steel plate (5). The upper end of each wall steel plate (5) is provided with a threaded rod (15). Each of the strip-shaped installation grooves (8) is provided with a strip-shaped installation groove (8), and the two threaded rods (15) respectively pass through the two screw rod through holes (22) and extend into the strip-shaped installation grooves (8), and the upper ends of the threaded rods (15) are locked and fastened by locking nuts (16), and anti-slip pads (17) are sleeved on the threaded rods (15) below the locking nuts (16), and a strip-shaped sealing plate (9) is provided above the threaded rods (15) in the strip-shaped installation grooves (8), and a plurality of L-shaped fixing plates (10) are fixedly connected to the upper ends of the strip-shaped fixing plates (9), and the vertical plates of the L-shaped fixing plates (10) are all connected to the wall steel plates (5). The rear side of the supporting steel plate (3) is fitted, and the vertical plate of the L-shaped fixing plate (10) is fixed to the wall steel plate (5) by fixing bolts I (18). A rectangular installation groove (7) is opened in the middle of the wall steel plate (5). Two rectangular protective steel nets (23) are arranged in the rectangular installation groove (7), and the four sides of the rectangular protective steel nets (23) are welded and fixed to the four groove walls of the rectangular installation groove (7). Support steel plates (12) are welded to the two ends of the rear side of the supporting steel plate (3), and two limiting ear plates (13) are welded to one end of the upper surface of the supporting steel plate (12). There is a space between the two limiting ear plates (13). Each movable clamp is provided with an oblique reinforcement strut (11), and the oblique reinforcement strut (11) and the two limit ear plates (13) are movably hinged through an axis (14), two fixed ear plates (20) are fixed to the middle of the two ends of the rear side of the fence steel plate (5), and the end of the oblique reinforcement strut (11) away from the axis (14) is clamped between the two corresponding fixed ear plates (20), and the oblique reinforcement strut (11) and the two corresponding fixed ear plates (20) are fixed by fixing bolts III (21), and gaps are generated between two adjacent fence steel plates (5), and the gaps are blocked by T-shaped blocking plates (6); One side of the T-shaped blocking plate (6) is in contact with the back surfaces of two adjacent wall steel plates (5), and the T-shaped blocking plate (6) and the wall steel plates (5) are connected and fixed by fixing bolts II (19); The rectangular installation grooves (7) are all vertically opened, and the upper and lower ends of the rectangular installation grooves (7) are at least ten centimeters away from the upper and lower ends of the wall steel plate (5). The number of rectangular installation grooves (7) is at least four, and the distance between two adjacent rectangular installation grooves (7) is at least twenty centimeters.

2. The splicable steel mesh protective wall for open-air blasting according to claim 1 is characterized by: The fence steel plates (5) are all configured as rectangular steel plates. The length of the fence steel plates (5) is equal to the length of the supporting steel plates (3) and the prefabricated cement cross seat (1). The length of the strip grooves (4) is equal to the length of the supporting steel plates (3). The depth of the strip grooves (4) is half the thickness of the supporting steel plates (3).

3. The splicable steel mesh protective wall for open-air blasting according to claim 1 is characterized by: The inclined angles of the oblique reinforcement struts (11) are all 60-75 degrees, and the upper surfaces of the strip-shaped sealing plates (9) are aligned with the upper surfaces of the wall steel plates (5).

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