Explosive blasting anti-impact protection device

Abstract

The utility model discloses an anti-impact protective device for explosive blasting, which belongs to the technical field of protection, aims to reduce failure rate and maintenance cost of equipment, and adopts the technical scheme that the anti-impact protective device comprises a fixed bottom plate, a lower hinge seat, a protective baffle, an upper hinge seat and an elastic telescopic support plate, the lower hinge seat is hinged to one end of the fixed bottom plate, and the protective baffle is hinged to the other end of the fixed bottom plate; the two ends of the protective baffle are connected with the lower hinge seat and the upper hinge seat in a clamped mode through clamping mechanisms respectively, a rubber gasket is arranged on the surface of the protective baffle, the upper end of the elastic telescopic supporting plate is hinged to the upper hinge seat, and the lower end of the elastic telescopic supporting plate is movably connected with the other end of the fixed bottom plate. The impact energy of flying rocks is absorbed through the rubber gasket and the elastic telescopic supporting plate, the service life of the protection baffle is prolonged, and the failure rate of the protection device is reduced; and meanwhile, the protective baffle is connected with the hinge seat through the clamping mechanism, so that disassembly and assembly are very convenient, the labor intensity of workers can be relieved, the maintenance efficiency is improved, and the maintenance cost of equipment is reduced.

Description

Technical Field

[0001] The utility model relates to an explosive blasting anti-impact protective device which has low failure rate and is easy to maintain and belongs to the technical field of protection. Background Art

[0002] Blasting is a technology that uses the compression, loosening, destruction, throwing and killing effects of explosives in the air, water, soil and rock media or objects to achieve the desired purpose. It is mainly used in earthwork engineering and the demolition of metal buildings and structures. When explosives or explosives explode in soil and rock media or structures, the thrown soil and rock media or structures will endanger the safety of surrounding personnel and equipment. For example, when blasting the shear wall of a tall building, there is often flying rocks, which can easily cause harm to surrounding personnel and equipment. In order to protect the safety of personnel and equipment, effective protective measures must be taken during blasting operations.

[0003] At present, the impact protection devices used in blasting operations generally use protective plates to block blasting flying stones. Since the protective plates are easily damaged after being hit by flying stones, which affects the protective effect of the equipment, they need to be replaced frequently. The protective plates on the existing protective equipment are mostly fixed to the equipment by fasteners such as bolts, which are very inconvenient to disassemble and replace. Not only does it increase the labor intensity of workers, but also the maintenance efficiency is low, which increases the maintenance cost of the equipment. Therefore, it is necessary to improve it. Utility Model Content

[0004] The utility model aims to provide an explosive blasting anti-impact protection device with low failure rate and easy maintenance to reduce the maintenance cost of the equipment in view of the drawbacks of the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An anti-impact protection device for explosive blasting comprises a fixed base plate, a lower hinged seat, a protective baffle, an upper hinged seat and an elastic telescopic support plate, wherein the lower hinged seat is hingedly connected to one end of the fixed base plate, the lower end and the upper end of the protective baffle are respectively engaged with the lower hinged seat and the upper hinged seat through a clamping mechanism, a rubber gasket is arranged on the surface of the protective baffle, the upper end of the elastic telescopic support plate is hinged to the upper hinged seat, and the lower end is movably connected to the other end of the fixed base plate.

[0007] The above-mentioned explosive blasting anti-impact protection device, the clamping mechanism includes a pin and an extrusion spring, pin holes are opened on the bosses on both sides of the lower hinge seat and the upper hinge seat, the pin hole is a stepped hole, the diameters of the two ends are the same and smaller than the middle diameter, the pin is inserted in the pin hole and the two ends of the pin are located outside the pin hole, a limiting ring is arranged on the pin and the limiting ring is located inside the pin hole, the diameter of the limiting ring is smaller than the middle diameter of the pin hole and larger than the diameters of the two ends of the pin hole, the extrusion spring is located inside the pin hole and sleeved on the outside of the pin, one end of the pin is provided with a pull disk, and the other end is inserted into the socket at the end of the protective baffle, the end of the extrusion spring close to the pull disk is pressed against the stepped platform on the inner wall of the pin hole, and the other end is pressed against the limiting ring.

[0008] The above-mentioned explosive blasting anti-impact protection device, the elastic telescopic support plate includes a telescopic plate, a fixed rod, a first buffer spring and a hinged base, buffer grooves are opened on both sides of the upper surface of the end of the fixed base plate away from the lower hinged seat, the fixed rod is fixed inside the buffer groove, the first buffer spring and the hinged base are slidably mounted on the fixed rod and the hinged base is located between the lower hinged seat and the first buffer spring, the upper end of the telescopic plate is hinged to the upper hinged seat, and the lower end is hinged to the hinged base.

[0009] The above-mentioned explosive blasting anti-impact protection device, the telescopic plate includes a support plate, an articulated sleeve, an insertion rod and a second buffer spring, the two ends of the support plate are externally slidably sleeved with articulated sleeves, the articulated sleeves at both ends of the support plate are respectively hinged to the articulated base and the upper articulated seat, slots are provided on the end surfaces of both ends of the support plate, each slot corresponds to a insertion rod, one end of the insertion rod is slidably inserted into the interior of the corresponding slot, and the other end is fixedly connected to the inner wall of the articulated sleeve and is sleeved with a second buffer spring, one end of the second buffer spring is against the bottom of the articulated sleeve, and the other end is against the end surface of the support plate, and limiting plates are provided at both ends of the support plate, the edge of the limiting plate is in sliding contact with the inner wall of the articulated sleeve, and an annular boss that can limit the limiting plate from escaping is provided on the inner wall at the entrance of the articulated sleeve.

[0010] The above explosive blasting anti-impact protection device has a limit plate at one end of the insertion rod inserted into the slot, the diameter of the limit plate matches the inner diameter of the slot, and an annular boss is provided on the inner wall of the slot notch to limit the limit plate from escaping.

[0011] In the explosive blasting anti-impact protection device, each buffer groove is provided with a hinged base, two fixing rods and two first buffer springs.

[0012] The utility model utilizes rubber gaskets and elastic telescopic support plates to absorb the impact energy of flying stones, thereby extending the service life of the protective baffle and reducing the failure rate of the protective device; at the same time, the protective baffle is connected to the hinge seat through a clamping mechanism, and disassembly and installation are very convenient, which can reduce the labor intensity of workers, improve maintenance efficiency, and reduce the maintenance cost of equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a partial exploded schematic diagram of the three-dimensional structure for fixing the bottom plate;

[0016] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0017] Figure 4 It is a partial exploded schematic diagram of the three-dimensional structure of the support plate;

[0018] Figure 5 It is a schematic diagram of the use state of the utility model.

[0019] The numbers in the figure are as follows: 1. Fixed base plate; 2. Lower hinge seat; 3. Protective baffle; 4. Upper hinge seat; 5. Pin hole; 6. Latch pin; 7. Extrusion spring; 8. Buffer groove; 9. Fixed rod; 10. First buffer spring; 11. Articulated base; 12. Support plate; 13. Slot; 14. Insert rod; 15. Second buffer spring; 16. Articulated sleeve; 17. Limiting ring; 18. Pull plate; 19. Limiting plate. DETAILED DESCRIPTION

[0020] The utility model aims at the defects of the prior art and provides an explosive blasting anti-impact protection device, which has high reliability, low failure rate, is easy to maintain, and can reduce the equipment maintenance cost, thus well solving the problems existing in the background technology.

[0021] See also Figure 1-Figure 5 The utility model mainly includes a fixed base plate 1, a lower hinge seat 2, a protective baffle 3, an upper hinge seat 4 and an elastic telescopic support plate, wherein the elastic telescopic support plate includes a telescopic plate, a fixed rod 9, a first buffer spring 10 and a hinge base 11, and the telescopic plate includes a support plate 12, a hinge sleeve 16, an insertion rod 14 and a second buffer spring 15.

[0022] The upper part of one end of the fixed bottom plate 1 is hingedly connected with a lower hinge seat 2, the lower end of the protective baffle 3 is snap-connected with the lower hinge seat 2 through a snap-connecting mechanism, the upper end of the protective baffle 3 is snap-connected with an upper hinge seat 4 through a snap-connecting mechanism, the front and back sides of the protective baffle 3 are provided with rubber gaskets, and both sides of the upper and lower ends of the protective baffle 3 are provided with plug holes. When in use, since the rubber gasket itself has good elasticity and toughness, it can buffer and unload the impact of flying stones, extend the service life of the protective baffle 3, and reduce the failure rate of the protective baffle 3. The protective baffle 3 is disassembled and assembled through the plug holes opened on both sides of the upper and lower ends, which is very convenient to operate, can reduce the labor intensity of workers, improve maintenance efficiency, and reduce equipment maintenance costs.

[0023] See also Figure 3 The clamping mechanism includes a latch 6 and an extrusion spring 7. Pin holes 5 are opened on the bosses on both sides of the lower hinge seat 2 and the upper hinge seat 4. The pin hole 5 is a stepped hole with the same diameter at both ends and smaller than the middle diameter. A latch 6 is inserted inside the pin hole 5. Both ends of the latch 6 are located outside the pin hole 5. The extrusion spring 7 is located inside the pin hole 5 and sleeved on the outside of the latch 6. A limit ring 17 is provided on the latch 6, and the limit ring 17 is located inside the pin hole 5. The diameter of the limit ring 17 is smaller than the middle diameter of the pin hole 5 and larger than the diameters at both ends of the pin hole 5. The limit ring 17 can slide along the inner wall of the pin hole 5. A pull disk 18 is provided at one end of the latch 6, and the other end is inserted into the jack at the end of the protective baffle 3. One end of the extrusion spring 7 close to the pull disk 18 is pressed against the step on the inner wall of the pin hole 5, and the other end presses against the limit ring 17. When in use, the elastic force of the extrusion spring 7 acts on the limiting ring 17, so that one end of the pin 6 is inserted into the socket at the end of the protective baffle 3, thereby realizing the connection between the protective baffle 3 and the lower hinge seat 2 and the upper hinge seat 4; when the protective baffle 3 needs to be removed, the pull plate 18 is pulled by hand, the limiting ring 17 compresses the extrusion spring 7, and one end of the pin 6 is pulled out from the socket at the end of the protective baffle 3, and the protective baffle 3 can be removed, which is very convenient to operate.

[0024] Buffer grooves 8 are provided on both sides of the upper surface of the other end of the fixed base plate 1 , and fixed rods 9 are fixedly connected to both sides of the buffer groove 8 , and a first buffer spring 10 and a hinged base 11 are sleeved on the outer surface of the fixed rod 9 .

[0025] The two ends of the support plate 12 are externally slidably sleeved with hinge sleeves 16, and the hinge sleeves 16 at the two ends of the support plate 12 are respectively hinged to the hinge base 11 and the upper hinge seat 4. Slots 13 are provided on the end surfaces of the two ends of the support plate 12. One end of the insertion rod 14 is slidably inserted into the inside of the slot 13, and the other end is fixedly connected to the inner wall of the hinge sleeve 16 and sleeved with a second buffer spring 15. One end of the second buffer spring 15 is pressed against the bottom of the hinge sleeve 16, and the other end is pressed against the end surface of the support plate 12. Limiting plates 19 are provided at both ends of the support plate 12, and the edge of the limiting plate 19 is in sliding contact with the inner wall of the hinge sleeve 16. An annular boss that can limit the limiting plate 19 from coming out is provided on the inner wall at the entrance of the hinge sleeve 16. When in use, the two ends of the support plate 12 can be inserted into the interior of the hinge sleeve 16 to compress the second buffer spring 15, thereby playing a buffering role against external impact.

[0026] A limit plate is provided at one end of the insertion rod 14 inserted into the slot 13, and the diameter of the limit plate matches the inner diameter of the slot 13. The limit plate can limit the movement distance of the insertion rod 14, so that the movement of the insertion rod 14 inside the slot 13 is more stable and will not fall off from the slot 13.

[0027] Working principle: When the device is used, first fix the fixed base plate 1 at a suitable position, then pull out the pins 6 on both sides of the lower hinge seat 2, then insert the lower end of the protective baffle 3 into the interior of the lower hinge seat 2, and then release the pin 6. Through the elastic force of the squeezing spring 7, one end of the pin 6 is inserted into the jacks on both sides of the lower end of the protective baffle 3 to fix the lower end of the protective baffle 3. Then, the upper hinge seat 4 is engaged with the upper end of the protective baffle 3 in the same manner and the upper end of the protective baffle 3 is fixed by the pin 6. In this way, the protective baffle 3 is used to protect and block the impact force and flying stones generated by the blasting.

[0028] When the protective baffle 3 is impacted, it will rotate around the lower hinge seat 2, and the upper hinge seat 4 will rotate synchronously and push the hinge sleeve 16 hinged to it to move on the outer surface of one end of the support plate 12, so that the other end of the support plate 12 moves inside the hinge sleeve 16 hinged to the hinge base 11, and at the same time, the insertion rod 14 will move synchronously in the slot 13, and at the same time, the hinge sleeve 16 hinged to the hinge base 11 will push the hinge base 11 to move inside the buffer groove 8 along the fixed rod 9, so that the impact force on the protective baffle 3 is buffered by the first buffer spring 10 and the second buffer spring 15.

[0029] When the protective baffle 3 needs to be disassembled or replaced after being damaged, first pull out one end of the four pins 6 from the sockets on both sides of the upper and lower ends of the protective baffle 3, then pull out the upper and lower ends of the protective baffle 3 from the inside of the lower hinge seat 2 and the upper hinge seat 4 respectively, and then replace the protective baffle 3 by turning the original protective baffle 3 over and reinstalling it, and use its other side for protection.

[0030] The utility model buffers the impact force on the protective baffle through the elasticity of the first buffer spring and the second buffer spring, thereby avoiding damage to the equipment due to excessive impact force. Moreover, the overall structural design is simple and reasonable, highly practical, and easy to promote and apply.

Claims

1. An explosive blasting anti-impact protection device, characterized in that: The invention comprises a fixed base plate (1), a lower hinge seat (2), a protective baffle plate (3), an upper hinge seat (4) and an elastic telescopic support plate, wherein the lower hinge seat (2) is hingedly connected to one end of the fixed base plate (1), the lower end and the upper end of the protective baffle plate (3) are respectively engaged with the lower hinge seat (2) and the upper hinge seat (4) through a clamping mechanism, a rubber gasket is provided on the surface of the protective baffle plate (3), the upper end of the elastic telescopic support plate is hingedly connected to the upper hinge seat (4), and the lower end is movably connected to the other end of the fixed base plate (1).

2. The explosive blasting anti-impact protection device according to claim 1 is characterized in that: The clamping mechanism comprises a latch (6) and a compression spring (7). A pin hole (5) is provided on the bosses on both sides of the lower hinge seat (2) and the upper hinge seat (4). The pin hole (5) is a stepped hole, and the diameters of both ends are the same and smaller than the diameter of the middle. The latch (6) is inserted into the pin hole (5) and both ends of the latch (6) are located outside the pin hole (5). A limit ring (17) is provided on the latch (6) and the limit ring (17) is located in the pin hole (5). Inside, the diameter of the limiting ring (17) is smaller than the diameter of the middle part of the pin hole (5) and larger than the diameter of the two ends of the pin hole (5). The extrusion spring (7) is located inside the pin hole (5) and is sleeved on the outside of the plug pin (6). One end of the plug pin (6) is provided with a pull plate (18), and the other end is inserted into the insertion hole at the end of the protective baffle (3). One end of the extrusion spring (7) close to the pull plate (18) is pressed against the step on the inner wall of the pin hole (5), and the other end is pressed against the limiting ring (17).

3. The explosive blasting anti-shock protection device according to claim 1 or 2, characterized in that: The elastic telescopic support plate comprises a telescopic plate, a fixed rod (9), a first buffer spring (10) and a hinged base (11); buffer grooves (8) are provided on both sides of the upper surface of an end of the fixed base plate (1) away from the lower hinged seat (2); the fixed rod (9) is fixed inside the buffer groove (8); the first buffer spring (10) and the hinged base (11) are both slidably mounted on the fixed rod (9); and the hinged base (11) is located between the lower hinged seat (2) and the first buffer spring (10); the upper end of the telescopic plate is hinged to the upper hinged seat (4), and the lower end is hinged to the hinged base (11).

4. The explosive blasting anti-impact protection device according to claim 3 is characterized in that: The telescopic plate comprises a support plate (12), an articulated sleeve (16), an insertion rod (14) and a second buffer spring (15); the two ends of the support plate (12) are externally slidably sleeved with articulated sleeves (16); the articulated sleeves (16) at the two ends of the support plate (12) are respectively hinged to the articulated base (11) and the upper articulated seat (4); slots (13) are provided on the end surfaces of the two ends of the support plate (12); each slot (13) corresponds to an insertion rod (14); one end of the insertion rod (14) is slidably inserted into the corresponding slot (11) 3), the other end of which is fixedly connected to the inner wall of the hinge sleeve (16) and is sleeved with a second buffer spring (15), one end of the second buffer spring (15) is pressed against the bottom of the hinge sleeve (16), and the other end is pressed against the end surface of the support plate (12), both ends of the support plate (12) are provided with a limit plate (19), the edge of the limit plate (19) is in sliding contact with the inner wall of the hinge sleeve (16), and an annular boss is provided on the inner wall at the entrance of the hinge sleeve (16) to limit the limit plate (19) from coming out.

5. The explosive blasting anti-shock protection device according to claim 4 is characterized in that: A limiting disk is provided at one end of the insertion rod (14) inserted into the slot (13); the diameter of the limiting disk matches the inner diameter of the slot (13); and an annular boss is provided on the inner wall of the notch of the slot (13) to limit the limiting disk from coming out.

6. The explosive blasting anti-shock protection device according to claim 5 is characterized in that: A hinged base (11), two fixing rods (9) and two first buffer springs (10) are arranged in each buffer groove (8).

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