Buffering support frame for high-load blasting operation

Abstract

The invention discloses a high-load blasting operation buffering supporting frame, and relates to the technical field of scaffolds, the high-load blasting operation buffering supporting frame comprises a plurality of supporting scaffolds, a bottom reinforcing rod and a top reinforcing rod are fixedly connected between the supporting scaffolds, each supporting scaffold comprises a base, and side wall limiting mechanisms are fixedly connected to the two ends of the top face of each base; the center position of the top face of the base is fixedly connected with a buffering supporting mechanism. The base comprises a shell, a compression cavity is formed in the shell, side wall oil injection holes are formed in the positions, close to the side wall limiting mechanisms, of the two ends of the compression cavity, and a center oil injection hole is formed in the position, close to the buffering supporting mechanism, of the center of the compression cavity. The two sealing sliding blocks between the side wall oil injection hole and the center oil injection hole can be close to each other, so that great pressure is generated between the two sealing sliding blocks to absorb gravitational potential energy of ore or coal seam falling, ore or coal seam falling is more stable, and impact and noise in the ore or coal seam falling process are greatly reduced.

Description

Technical Field

[0001] The invention relates to the technical field of scaffolds, and in particular to a buffer support frame for high-load blasting operations. Background Art

[0002] During the blasting process of a coal mine, explosives need to be installed at specific places in the mine to break up coal seams or rocks. Before installing the explosives, support devices need to be installed at the bottom and sides of the mine to facilitate the staff to carry out preliminary preparations for mine blasting. After the preliminary preparations for mine blasting are completed, the support device can also play a role in buffering falling objects; Existing support devices, such as a collision-proof and buffering support frame disclosed in Chinese patent application with publication number CN116357054A and a support bottom seat with a buffering function disclosed in Chinese patent authorization announcement number CN205777441U, can play a certain collision-proof and buffering role. However, when used in mine blasting, the gravity of the ore or coal seam itself is very large, resulting in the support device The buffering function is very limited and cannot reduce the impact and noise generated by the ore or coal seam falling to the ground. Summary of the invention

[0003] In order to overcome the above-mentioned technical problems, the purpose of the present invention is to provide a high-load blasting operation buffer support frame to solve the problem in the prior art that the scaffolding has very limited buffering effect due to the large gravity of the ore or coal seam itself, resulting in the inability to reduce the impact and noise generated by the ore or coal seam falling to the ground.

[0004] The purpose of the present invention can be achieved through the following technical solutions: Specifically, a buffer support frame for high-load blasting operations is provided, including a plurality of supporting scaffolds, wherein bottom reinforcing rods and top reinforcing rods are fixedly connected between the plurality of supporting scaffolds, and the plurality of supporting scaffolds all include a base, wherein both ends of the top surface of the base are fixedly connected with side wall limiting mechanisms, and the center position of the top surface of the base is fixedly connected with a buffer support mechanism; the base includes an outer shell, wherein a compression chamber is provided inside the outer shell, and side wall oil filling holes are provided at both ends of the compression chamber near the side wall limiting mechanisms, and a center oil filling hole is provided at the center of the compression chamber near the buffer support mechanism, and four sealing sliders are provided inside the compression chamber, and the four sealing sliders are symmetrically arranged on both sides of the center oil filling hole.

[0005] As a further solution of the present invention: the buffer support mechanism includes a first support column, a second support column, a third support column and a fourth support column, the bottom surface of the first support column is fixedly connected to the top surface of the outer shell, and the second support column, the third support column and the fourth support column are mutually socketed.

[0006] As a further solution of the present invention: a second non-Newtonian fluid is provided at the bottom of the inner cavity of the first support column and the second support column, the bottom end of the first support column is connected to the central oil filling hole, the bottom ends of the second support column and the third support column are fixedly connected to a support spring, and the bottom end of the support spring is fixedly connected to a circular ring support member.

[0007] As a further solution of the present invention: a locking mechanism is installed at the bottom end of the second support column and the third support column, and the locking mechanism includes a hydraulic cavity, a first locking tongue is provided at one end of the hydraulic cavity, a hydraulic slider is provided at the other end of the hydraulic cavity, and a second locking tongue is provided on the side of the hydraulic slider.

[0008] As a further solution of the present invention: the fourth support column includes a support plate, the bottom surface of the support plate is fixedly connected to a polyurethane column, one end of the polyurethane column away from the support plate is fixedly connected to a buffer spring, and one end of the buffer spring away from the polyurethane column is fixedly connected to a circular slider.

[0009] As a further solution of the present invention: a first non-Newtonian fluid is provided inside the third support column.

[0010] As a further solution of the present invention: the side wall limiting mechanism includes a side wall supporting column, the top surface of the side wall supporting column is rotatably connected to the side wall telescopic rod, and one end of the side wall telescopic rod away from the side wall supporting column is rotatably connected to the side wall limiting plate.

[0011] As a further solution of the present invention: the side wall telescopic rod includes a plurality of oil pipes which are sleeved with each other, and one end of the oil pipe close to the side wall support column is connected to the side wall oil filling hole through the side wall support column.

[0012] As a further solution of the present invention: the side wall support columns are pre-buried in the soil.

[0013] As a further solution of the present invention: the base and the first support column are pre-buried in the soil.

[0014] Beneficial effects of the present invention: 1. In the present invention, by setting up a supporting scaffold, in the process of the ore or coal seam falling after being blasted, the side wall limiting mechanism will support the two sides of the ore or coal seam, limit the position of the ore or coal seam falling, and ensure that the ore or coal seam falls within the limited range. The side wall limiting mechanism will convert the gravitational potential energy of the ore or coal seam falling into the force acting on the buffering support mechanism, that is, increase the effect of the buffering support mechanism in buffering the fall of the ore or coal seam. Specifically, when the ore or coal seam falls, the side wall limiting mechanism will convert the gravitational potential energy of the ore or coal seam into an extrusion force on the hydraulic oil. As shown in the figure, the sealing sliders at both ends of the compression chamber and the side wall oil filling holes will be filled with hydraulic oil, so that the ore The gravitational potential energy of the rock or coal seam will directly act on the sealing slider through the hydraulic oil, and the center oil filling hole and the sealing sliders on both sides thereof are filled with non-Newtonian fluid, which will also be affected by the gravitational potential energy of the falling ore or coal seam. Therefore, the two sealing sliders between the side wall oil filling hole and the center oil filling hole will be close to each other, so that a great pressure is generated between the two sealing sliders to absorb the gravitational potential energy of the falling ore or coal seam, making the fall of the ore or coal seam more stable, greatly reducing the impact and noise during the fall of the ore or coal seam, and the side wall limit mechanism set can also prevent the ore or coal seam from falling ectopically, ensuring the safety of blasting the ore or coal seam.

[0015] 2. In the present invention, the first support column is arranged at the bottom, the second support column is plugged into the top of the first support column, the third support column is plugged into the top of the second support column, and the fourth support column is plugged into the top of the third support column. The top end of the fourth support column is directly supported on the bottom surface of the ore or coal seam. When the ore or coal seam falls after being blasted, the gravitational potential energy of the ore or coal seam first acts on the fourth support column, so that the fourth support column is inserted into the interior of the third support column, and then the fourth support column and the third support column are inserted into the interior of the second support column together. Finally, the fourth support column, the third support column and the second support column are inserted into the interior of the first support column together. In this process, the fourth support column, the third support column and the second support column continuously absorb the kinetic energy of the ore or coal seam during the falling process, so that the impact and noise when the ore or coal seam falls to the ground are reduced.

[0016] 3. In the present invention, during the intermittent kinetic energy absorption process between the first support column, the second support column, the third support column and the fourth support column, most of the kinetic energy of the falling ore or coal seam can be absorbed, ensuring that the falling of the ore or coal seam is more stable and reducing the impact and noise during the falling process of the ore or coal seam.

[0017] Fourth, in the present invention, since a locking mechanism 8 is provided at the bottom of the inner cavity of the third support column, only after the annular slider is pressed against the bottom of the inner cavity of the third support column, the annular slider will release the locking mechanism 8 at the bottom of the inner cavity of the third support column, so that the third support column can slide downward along the inner wall of the second support column; 5. In the present invention, the side wall support columns, the base and the first support column are all pre-buried in the soil at the bottom of the ore or coal seam. When the ore or coal seam finally falls to the ground, the soil at the bottom of the ore or coal seam is responsible for the final buffering, reducing the impact of the ore or coal seam on the first support column. In this way, the supporting scaffolding can be recycled after the ore or coal seam is blasted, thereby reducing the use cost of the supporting scaffolding. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a structural schematic diagram of the supporting scaffold in the present invention; Figure 3 It is a front view of the supporting scaffold in the present invention; Figure 4 It is a schematic diagram of the internal structure of the base in the present invention; Figure 5 It is a structural schematic diagram of the buffer support mechanism in the present invention; Figure 6 It is a front view of the buffer support mechanism of the present invention; Figure 7 is a partial cross-sectional view of the buffer support mechanism of the present invention; Figure 8 yes Figure 7 The partial enlargement intention of point A in the middle; Fig. 9 is a schematic structural diagram of the fourth support column in the present invention; Fig.10 It is a structural schematic diagram of the side wall limiting mechanism in the present invention; Fig.11 It is a front view of the side wall limiting mechanism of the present invention; Fig.12 It is a schematic diagram of the structure of the second support column and the third support column in the present invention; Fig.13 Schematic diagram of the cooperation between the high-load blasting operation buffer support frame and the coal seam of the present invention.

[0020] In the figure: 1, supporting scaffold; 11, base; 111, shell; 112, compression chamber; 113, side wall oil injection hole; 114, center oil injection hole; 115, sealing slider; 12, buffer support mechanism; 121, first support column; 122, second support column; 123, third support column; 1231, first non-Newtonian fluid; 124, fourth support column; 1241, support plate; 1242, polyurethane column; 1243, buffer spring ; 1244, annular slider; 125, second non-Newtonian fluid; 126, support spring; 127, annular support; 128, locking mechanism; 1281, hydraulic chamber; 1282, first locking tongue; 1283, hydraulic slider; 1284, second locking tongue; 129, wooden stick; 13, side wall limiting mechanism; 131, side wall support column; 132, side wall telescopic rod; 133, side wall limiting plate; 2, bottom reinforcing rod; 3, top reinforcing rod. DETAILED DESCRIPTION

[0021] 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.

[0022] Embodiment 1: like Figure 1 , Figure 2 , Figure 3 and Fig.13 As shown, the present invention discloses a buffer support frame for high-load blasting operations, comprising a plurality of support scaffolds 1, wherein a bottom reinforcing rod 2 and a top reinforcing rod 3 are fixedly connected between the plurality of support scaffolds 1, and the plurality of support scaffolds 1 all comprise a base 11, wherein two ends of the top surface of the base 11 are fixedly connected with a side wall limiting mechanism 13, and a buffer support mechanism 12 is fixedly connected to the center position of the top surface of the base 11; the base 11 comprises a shell 111, wherein a compression chamber 112 is provided inside the shell 111, and side wall oil injection holes 113 are provided at two ends of the compression chamber 112 near the side wall limiting mechanism 13, and a center oil injection hole 114 is provided at the center of the compression chamber 112 near the buffer support mechanism 12, and four sealing sliders 115 are provided inside the compression chamber 112, and the four sealing sliders 115 are symmetrically arranged on both sides of the center oil injection hole 114; It should be noted that the number of supporting scaffolds 1 is set according to the length of the ore or coal seam, that is, the longer the length of the ore or coal seam, the more supporting scaffolds 1 are required, and the supporting scaffolds 1 are installed at equal intervals at the bottom of the ore or coal seam, and the top reinforcing rods 3 are installed on the sides of the ore or coal seam. A working platform can be installed on the top reinforcing rods 3 to facilitate technicians to arrange the side wall limiting mechanism 13. In the process of blasting the ore or coal seam, the buffer support mechanism 12 is arranged on the bottom surface of the ore or coal seam, so the buffer support mechanism 12 is used to buffer the fall of the ore or coal seam, and the side wall limiting mechanism 13 is arranged on both sides of the ore or coal seam. In the process of the ore or coal seam falling after being blasted, the side wall limiting mechanism 13 will support the two sides of the ore or coal seam to limit the position of the ore or coal seam falling and ensure that the ore or coal seam falls within a limited range; It should be emphasized that, in the process of ore or coal seam falling, the side wall limit mechanism 13 will convert the gravitational potential energy of the ore or coal seam falling into a force on the buffer support mechanism 12, that is, increase the effect of the buffer support mechanism 12 in buffering the ore or coal seam falling. Specifically, when the ore or coal seam falls, the side wall limit mechanism 13 will convert the gravitational potential energy of the ore or coal seam into a squeezing force on the hydraulic oil, such as Figure 4 As shown, the space between the sealing sliders 115 at both ends of the compression chamber 112 and the side wall oil injection holes 113 is filled with hydraulic oil, so that the gravitational potential energy of the ore or coal seam will directly act on the sealing sliders 115 through the hydraulic oil, and the space between the central oil injection hole 114 and the sealing sliders 115 on both sides thereof is filled with non-Newtonian fluid, and the non-Newtonian fluid will also be affected by the gravitational potential energy of the falling ore or coal seam, so the two sealing sliders 115 between the side wall oil injection holes 113 and the central oil injection hole 114 will be close to each other; Since the sealing slider 115 matches the compression chamber 112, that is, the chamber between the two sealing sliders 115 is sealed, the two sealing sliders 115 will quickly approach each other due to the gravitational potential energy of the falling ore or coal seam, thereby generating a huge pressure between the two sealing sliders 115 to absorb the gravitational potential energy of the falling ore or coal seam. This is because the ore or coal seam will act on the buffer support mechanism 12 during the falling process, that is, the two sealing sliders 115 between the side wall oil filling hole 113 and the center oil filling hole 114 will approach each other, so that the internal pressure of the compression chamber 112 will increase rapidly, absorbing the gravitational potential energy of the falling ore or coal seam, making the falling of the ore or coal seam more stable, greatly reducing the impact and noise during the falling process of the ore or coal seam, and the side wall limiting mechanism 13 set can also prevent the ore or coal seam from falling ectopically, thereby ensuring the safety of the blasting of the ore or coal seam.

[0023] like Figure 5 and Figure 6As shown, the buffer support mechanism 12 includes a first support column 121, a second support column 122, a third support column 123 and a fourth support column 124, the bottom surface of the first support column 121 is fixedly connected to the top surface of the housing 111, and the second support column 122, the third support column 123 and the fourth support column 124 are mutually sleeved; It should be noted that the first support column 121 is arranged at the bottom, the second support column 122 is plugged into the top of the first support column 121, the third support column 123 is plugged into the top of the second support column 122, and the fourth support column 124 is plugged into the top of the third support column 123. The top of the fourth support column 124 is directly supported on the bottom surface of the ore or coal seam. When the ore or coal seam falls after being blasted, the gravitational potential energy of the ore or coal seam first acts on the fourth support column 124, so that the fourth support column 124 is inserted into the interior of the third support column 123, and then the fourth support column 124 and the third support column 123 are inserted into the interior of the second support column 122 together. Finally, the fourth support column 124, the third support column 123 and the second support column 122 are inserted into the interior of the first support column 121 together. In this process, the fourth support column 124, the third support column 123 and the second support column 122 continuously absorb the kinetic energy of the ore or coal seam during the falling process, so that the impact and noise when the ore or coal seam falls to the ground are reduced.

[0024] like Figure 7 As shown, the bottom of the inner cavity of the first support column 121 and the second support column 122 are both provided with a second non-Newtonian fluid 125, the bottom end of the first support column 121 is connected to the central oil filling hole 114, the bottom ends of the second support column 122 and the third support column 123 are both fixedly connected to a support spring 126, and the bottom end of the support spring 126 is fixedly connected to a circular support member 127; It should be noted that the second non-Newtonian fluid 125 is a concentrated solution of a high molecular polymer, and a wooden stick 129 is also provided at the inner center of the support spring 126. The bottom end of the wooden stick 129 is fixedly connected to the top surface of the circular support 127. It should be noted that the bottom end of the wooden stick 129 is connected to a cross bar or a cross bar, and the length of the cross bar is equal to the outer diameter of the circular support 127. The length of the cross bar also needs to be equal to the outer diameter of the circular support 127. The bottom end of the wooden stick 129 is fixedly connected to the top surface of the circular support 127 through the cross bar or the cross bar to ensure that the wooden stick 129 is stably connected to the circular support 127. Next, the purpose of setting the wooden stick 129 is to prevent the annular support member 127 from being fixed on the second non-Newtonian fluid 125 when arranging the high-load blasting operation buffer support frame, so as to prevent the bottom surface of the annular support member 127 from contacting the top surface of the second non-Newtonian fluid 125, thereby affecting the buffering performance of the top surface of the second non-Newtonian fluid 125 on the annular support member 127. The force relationship between the first support column 121 and the second support column 122 and the second support column 122 and the third support column 123 is the same. Here, the force relationship between the second support column 122 and the third support column 123 is analyzed, specifically: When the gravity of the ore or coal seam is transferred to the third support column 123, the third support column 123 will directly transfer the gravity to the annular support member 127 through the wooden stick 129, and the annular support member 127 will also directly act on the second non-Newtonian fluid 125 inside the second support column 122. At this time, the second non-Newtonian fluid 125 will produce a very strong reaction force on the annular support member 127, making the position of the annular support member 127 unable to move, and the strength of the wooden stick 129 is very low, so it will break quickly. At this time, the support spring 126 will shrink under the action of the third support column 123. As the annular support member 127 acts on the top surface of the second non-Newtonian fluid 125 for a longer time, due to the properties of the second non-Newtonian fluid 125 itself, the second non-Newtonian fluid 125 will enter the top of the annular support member 127 through the hole in the middle of the annular support member 127, ensuring that the annular support member 127 can slide downward; It is also important to note that if Fig.12 As shown, flow grooves are provided on the side walls of the second support column 122 and the third support column 123 to ensure that the second non-Newtonian fluid 125 in the first support column 121 and the second support column 122 and the first non-Newtonian fluid 1231 in the third support column 123 can flow into the external environment through the flow grooves; When the annular support member 127 slides downward, the third support column 123 will also further descend. When the bottom end of the third support column 123 contacts the second non-Newtonian fluid 125 inside the second support column 122, the second non-Newtonian fluid 125 first generates a strong reaction force on the bottom end of the third support column 123 to absorb the kinetic energy of the third support column 123. Then, the third support column 123 squeezes the second non-Newtonian fluid 125, causing the second non-Newtonian fluid 125 to flow out from the flow groove on the side wall of the second support column 122. Then the third support column 123 will continue to move downward inside the second support column 122 until the support spring 126 and the annular support member 127 at the bottom end of the third support column 123 are pressed to the lowest point; The difference between the working principle between the first support column 121 and the second support column 122 and the working principle between the second support column 122 and the third support column 123 is that the bottom end of the first support column 121 is connected to the central oil injection hole 114, that is, the second non-Newtonian fluid 125 in the first support column 121 will enter the compression chamber 112 through the central oil injection hole 114 instead of being discharged from the side wall of the first support column 121; During the intermittent kinetic energy absorption process between the first support column 121, the second support column 122, the third support column 123 and the fourth support column 124, most of the kinetic energy of the falling ore or coal seam can be absorbed, ensuring that the ore or coal seam falls more smoothly and reducing the impact and noise during the falling process.

[0025] Embodiment 2: like Figure 8 As shown, a locking mechanism 128 is installed at the bottom end of the second support column 122 and the third support column 123, and the locking mechanism 128 includes a hydraulic chamber 1281, one end of the hydraulic chamber 1281 is provided with a first locking tongue 1282, the other end of the hydraulic chamber 1281 is provided with a hydraulic slider 1283, and the side of the hydraulic slider 1283 is provided with a second locking tongue 1284, and a spring is fixedly connected to the side of the second locking tongue 1284 away from the hydraulic slider 1283, and the spring directly acts on the second locking tongue 1284, so that the second locking tongue 1284 can squeeze the hydraulic slider 1283, and a connecting channel is opened at the top of the spring cavity at the end of the second locking tongue 1284 away from the hydraulic slider 1283, and the connecting channel on the second support column 122 is connected with the bottom end of the third support column 123, and the first non-Newtonian fluid 1231 in the inner cavity of the third support column 123 can enter the spring cavity on the second support column 122 through the connecting channel; The connecting channel on the third support column 123 is connected to the bottom end of the second support column 122, and the second non-Newtonian fluid 125 in the inner cavity of the second support column 122 can enter the spring cavity on the third support column 123 through the connecting channel; When the annular support 127 acts on the surface of the second non-Newtonian fluid 125 inside the second support column 122, the first lock tongue 1282 and the second lock tongue 1284 will be simultaneously subjected to the pressure of the second non-Newtonian fluid 125 and will not move. Only when the annular support 127 moves to the position of the first lock tongue 1282 will it squeeze the first lock tongue 1282.

[0026] It should be noted that the working principles of the locking mechanisms 128 installed at the bottom ends of the second support column 122 and the third support column 123 are the same. Here, the locking mechanism 128 at the bottom end of the third support column 123 is taken as an example. Specifically, When the third support column 123 presses the support spring 126 and the annular support member 127 at the bottom to the lowest point, Figure 8 As shown, the annular support member 127 at the bottom end of the third support column 123 will directly act on the first locking tongue 1282, causing the first locking tongue 1282 to move toward the inside of the hydraulic chamber 1281 and squeeze the hydraulic oil inside the hydraulic chamber 1281. When the hydraulic oil inside the hydraulic chamber 1281 is squeezed, according to the principle of communicating vessels, the hydraulic slider 1283 will squeeze the second locking tongue 1284, causing the second locking tongue 1284 to disengage from the hydraulic chamber 1281. When the second locking tongue 1284 disengages from the hydraulic chamber 1281, the locking between the second support column 122 and the first support column 121 will be released, and at this time the second support column 122 will be able to move toward the inside of the first support column 121.

[0027] Embodiment 3: like Fig. 9 As shown, the fourth support column 124 includes a support plate 1241, a polyurethane column 1242 is fixedly connected to the bottom surface of the support plate 1241, a buffer spring 1243 is fixedly connected to one end of the polyurethane column 1242 away from the support plate 1241, a circular slider 1244 is fixedly connected to one end of the buffer spring 1243 away from the polyurethane column 1242, and a first non-Newtonian fluid 1231 is provided inside the third support column 123; It should be noted that the top surface of the support plate 1241 is in direct contact with the bottom surface of the ore or coal seam, that is, when the ore or coal seam is blasted, the bottom surface of the ore or coal seam will first act on the support plate 1241, and the support plate 1241 will act on the circular slider 1244 through the polyurethane column 1242 and the buffer spring 1243. It should be noted that a wooden stick 129 is also set in the middle position of the buffer spring 1243. It should be noted that a cross bar or a cross bar is also connected to the bottom end of the wooden stick 129. The length of the cross bar is equal to the outer diameter of the ring slider 1244, the length of the cross bar is equal to the outer diameter of the ring slider 1244, the wooden stick 129 is fixedly connected to the top surface of the ring slider 1244 through the cross bar or the cross bar at the bottom, ensuring that the wooden stick 129 is stably connected to the ring slider 1244. The purpose of setting the wooden stick 129 is to prevent the ring slider 1244 from being fixed above the first non-Newtonian fluid 1231 when arranging the high-load blasting operation buffer support frame, so as to prevent the bottom of the ring slider 1244 from The surface of the first non-Newtonian fluid 1231 contacts the top surface, which affects the buffering performance of the top surface of the first non-Newtonian fluid 1231 on the annular slider 1244. When the annular slider 1244 moves downward under the action of the ore or coal seam, the annular slider 1244 will contact the first non-Newtonian fluid 1231. The first non-Newtonian fluid 1231 has the same properties as the second non-Newtonian fluid 125. Therefore, the first non-Newtonian fluid 1231 first exerts a strong force on the annular slider 1244, and then the first non-Newtonian fluid 1231 exerts a strong force on the annular slider 1244. 31 will enter the top of the circular slider 1244 through the through hole in the middle of the circular slider 1244, and the polyurethane column 1242 and the buffer spring 1243 in the support plate 1241 will also cooperate with each other to absorb the kinetic energy of the ore or coal seam during the falling process. The first non-Newtonian fluid 1231 and the second non-Newtonian fluid 125 are both concentrated solutions and suspensions of polymers, such as concentrated solutions of polyethylene, polyacrylamide, and polyvinyl chloride. The concentration is adaptively adjusted by technicians in this field according to the specifications of the ore or coal seam. Since a locking mechanism 128 is provided at the bottom of the inner cavity of the third support column 123, only when the annular slider 1244 is pressed against the bottom of the inner cavity of the third support column 123, the annular slider 1244 will release the locking mechanism 128 at the bottom of the inner cavity of the third support column 123, so that the third support column 123 can slide downward along the inner wall of the second support column 122.

[0028] Embodiment 4: like Fig.10 and Fig.11As shown, the side wall limiting mechanism 13 includes a side wall supporting column 131, the top surface of the side wall supporting column 131 is rotatably connected to a side wall telescopic rod 132, one end of the side wall telescopic rod 132 away from the side wall supporting column 131 is rotatably connected to a side wall limiting plate 133, the side wall telescopic rod 132 includes a plurality of oil pipes sleeved together, and one end of the oil pipe close to the side wall supporting column 131 is connected to the side wall oil filling hole 113 through the side wall supporting column 131; It should be noted that the side wall limit plate 133 is directly fixedly connected to the side of the ore or coal seam, for example, the side wall limit plate 133 is fixedly connected to the side of the ore or coal seam by bolts. When the ore or coal seam falls, the ore or coal seam will drive the side wall limit plate 133 to move downward synchronously. This is because the side wall limit plate 133 is fixedly connected to the side of the ore or coal seam, so the ore or coal seam will drive the side wall limit plate 133 during the falling process, and the side wall limit plate 133 is connected to the side wall support column 131 through the side wall telescopic rod 132. When the side wall limit plate 133 moves downward, the side wall limit plate 133 will inevitably squeeze the side wall telescopic rod 132, causing the side wall telescopic rod 132 to shorten, and the shortened side wall telescopic rod 132 will squeeze the hydraulic oil inside the side wall telescopic rod 132. Since the side wall telescopic rod 132 includes a plurality of oil pipes that are mutually socketed, the oil pipes are close to the side wall support column One end of 131 is connected with the side wall oil filling hole 113 through the side wall support column 131, so when the ore or coal seam drives the side wall limit plate 133 to move synchronously, the side wall telescopic rod 132 will be continuously compressed by the side wall limit plate 133, that is, the hydraulic oil inside the side wall limit plate 133 will be continuously compressed, causing the hydraulic oil inside the side wall limit plate 133 to enter the side wall oil filling hole 113 from the inside of the side wall support column 131, and then be injected into the compression chamber 112 through the side wall oil filling hole 113, squeezing the sealing slider 115 in the compression chamber 112. It should also be noted that the buffer support mechanism 12 is used to support the falling gravity of the ore or coal seam, and the side wall limit plate 133 plays an auxiliary role. On the one hand, it ensures that the ore or coal seam falls at the set position and does not roll or tilt. On the other hand, it absorbs the gravitational potential energy of the ore or coal seam to reduce the impact force during the falling process of the ore or coal seam.

[0029] Embodiment 5: The side wall support column 131 is pre-buried in the soil, and the base 11 and the first support column 121 are pre-buried in the soil. It should be noted that the side wall support column 131, the base 11 and the first support column 121 are all pre-buried in the soil at the bottom of the ore or coal seam. When the ore or coal seam finally falls to the ground, the soil at the bottom of the ore or coal seam is responsible for the final buffer, reducing the impact of the ore or coal seam on the first support column 121. In this way, the supporting scaffolding 1 can be recycled after the ore or coal seam is blasted, thereby reducing the use cost of the supporting scaffolding 1.

[0030] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A high-load blasting operation buffer support frame, comprising a plurality of support scaffolds (1), wherein a bottom reinforcing rod (2) and a top reinforcing rod (3) are fixedly connected between the plurality of support scaffolds (1), and characterized in that: Several of the supporting scaffolds (1) comprise a base (11), the two ends of the top surface of the base (11) are fixedly connected to side wall limiting mechanisms (13), and the center position of the top surface of the base (11) is fixedly connected to a buffer support mechanism (12); The base (11) comprises a shell (111), a compression chamber (112) is provided inside the shell (111), side wall oil injection holes (113) are provided at both ends of the compression chamber (112) near the side wall limit mechanism (13), a central oil injection hole (114) is provided at the center of the compression chamber (112) near the buffer support mechanism (12), and four sealing sliders (115) are provided inside the compression chamber (112), and the four sealing sliders (115) are symmetrically arranged on both sides of the central oil injection hole (114).

2. The high-load blasting operation buffer support frame according to claim 1, characterized in that: The buffer support mechanism (12) comprises a first support column (121), a second support column (122), a third support column (123) and a fourth support column (124); the bottom surface of the first support column (121) is fixedly connected to the top surface of the housing (111); the second support column (122), the third support column (123) and the fourth support column (124) are sleeved together.

3. The high-load blasting operation buffer support frame according to claim 2, characterized in that: A second non-Newtonian fluid (125) is provided at the bottom of the inner cavities of the first support column (121) and the second support column (122); the bottom end of the first support column (121) is connected to the central oil filling hole (114); the bottom ends of the second support column (122) and the third support column (123) are fixedly connected to a support spring (126); and the bottom ends of the support springs (126) are fixedly connected to a circular ring support member (127).

4. The high-load blasting operation buffer support frame according to claim 2, characterized in that: The bottom ends of the second support column (122) and the third support column (123) are both provided with a locking mechanism (128), the locking mechanism (128) comprising a hydraulic chamber (1281), one end of the hydraulic chamber (1281) being provided with a first locking tongue (1282), the other end of the hydraulic chamber (1281) being provided with a hydraulic slide block (1283), and a side surface of the hydraulic slide block (1283) being provided with a second locking tongue (1284).

5. The high-load blasting operation buffer support frame according to claim 2, characterized in that: The fourth support column (124) comprises a support plate (1241), the bottom surface of the support plate (1241) is fixedly connected to a polyurethane column (1242), one end of the polyurethane column (1242) away from the support plate (1241) is fixedly connected to a buffer spring (1243), and one end of the buffer spring (1243) away from the polyurethane column (1242) is fixedly connected to a circular slider (1244).

6. The high-load blasting buffer support frame according to claim 5, characterized in that: A first non-Newtonian fluid (1231) is provided inside the third support column (123).

7. The high-load blasting operation buffer support frame according to claim 1, characterized in that: The side wall limiting mechanism (13) comprises a side wall support column (131), the top surface of the side wall support column (131) is rotatably connected to a side wall telescopic rod (132), and one end of the side wall telescopic rod (132) away from the side wall support column (131) is rotatably connected to a side wall limiting plate (133).

8. The high-load blasting operation buffer support frame according to claim 7, characterized in that: The side wall telescopic rod (132) comprises a plurality of oil pipes which are sleeved together, and one end of the oil pipe close to the side wall support column (131) is connected to the side wall oil filling hole (113) through the side wall support column (131).

9. The high-load blasting operation buffer support frame according to claim 7, characterized in that: The side wall support columns (131) are pre-buried in the soil.

10. The high-load blasting operation buffer support frame according to claim 2, characterized in that: The base (11) and the first support column (121) are pre-buried in the soil.

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