Geological disaster gravel blocking structure and using method thereof
By setting the transfer assembly and elastic buffer assembly in the blocking box, the transfer motor drives the transfer belt and eccentric wheel structure to share the gravel pressure, the problem of intercepting plate dumping and insufficient buffering is solved, and a more stable gravel interception and buffering effect is achieved.
Patent Information
- Application Number
- CN202510648006.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-20
- Publication Date
- 2025-08-01
AI Technical Summary
The existing geological disaster gravel hinder structure is prone to dump when there is too much gravel inside the intercepting plate, resulting in poor interception effect and inability to effectively buffer the impact of falling gravel.
The transfer components and elastic buffer components in multiple sets of blocking boxes are used to scrape the gravel through the transfer motor drive the transfer belt and toothed nails. Combined with the reciprocating movement of the eccentric wheel and the telescopic rod, the gravel pressure is allocated, and the elastic parts are used to reduce the speed and buffer the gravel to achieve lateral transfer and buffering.
Effectively allocate the pressure of gravel, reduce the risk of dumping the barrier box, improve the interception effect, and reduce damage to the barrier box, enhance the agitation effect of the gravel pile, and improve the stability and interception efficiency of the interception structure.
Smart Images
Figure CN120401385A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of geological disaster prevention, and more specifically, it is a geological disaster gravel blocking structure; the present invention also relates to a method for using such a geological disaster gravel blocking structure. Background Art
[0002] Geological disasters refer to geological processes or phenomena formed under the action of natural or human factors that cause losses to human life and property and damage to the environment. A landslide refers to the process and phenomenon in which the local stability of a slope is damaged, and under the action of gravity, a rock mass or other debris slides downward as a whole along one or more rupture sliding surfaces.
[0003] When a geological disaster occurs and causes a landslide on the slope, in order to prevent the gravel sliding from the slope from occupying the road and injuring pedestrians on the road, the prior art usually sets a number of interception plates at the bottom of the slope. The number of interception plates is arranged side by side, and the outside of the number of interception plates is reinforced and supported by a support structure to enhance the strength of the interception plates. When the gravel slides to the bottom of the slope, the number of interception plates arranged side by side intercepts the gravel to limit the gravel at the bottom of the slope, avoiding the gravel from damaging the road and injuring pedestrians, and at the same time effectively collecting the sliding gravel. However, although the existing interception plates have a support structure on the outside, when the number of gravel intercepted inside a certain group of interception plates is too large, this group of interception plates is still likely to be subjected to a large pressure from the gravel and thus tilt, resulting in poor interception effect on the gravel.
[0004] Therefore, it is necessary to develop a geological disaster gravel blocking structure and its use method that can evenly distribute the gravel pressure among multiple groups of blocking boxes and buffer the gravel sliding down the slope. Summary of the Invention
[0005] The first object of the present invention is to overcome the deficiencies of the above background art and provide a geological disaster gravel blocking structure.
[0006] The second object of the present invention is to provide a method for using such a geological disaster gravel blocking structure.
[0007] To achieve the above first object, the technical solution of the present invention is: a geological disaster gravel blocking structure, characterized in that: it includes multiple groups of blocking boxes arranged on the outside of the slope and a transfer component located inside the blocking box.
[0008] Two first notches are opened on the side of the blocking box close to the slope at intervals, and the first notches are arranged vertically.
[0009] The transfer component includes a power component and a transfer belt. The power component includes a transfer motor, a rotating shaft, and two belt rollers.
[0010] The two belt rollers are arranged at intervals inside the blocking box, and the transfer motor is connected to one of the belt rollers through a rotating shaft;
[0011] The transfer belt is sleeved on the two belt rollers, and the side of the transfer belt close to the slope extends out of the blocking box from the first notch and is attached to the outer wall of the blocking box.
[0012] In the above technical solution, a number of evenly distributed tooth nails are arranged on the side of the transfer belt close to the slope.
[0013] In the above technical solution, an elastic buffer assembly is further included and arranged between the slope and the blocking box. The elastic buffer assembly includes a support cross bar, a buffer rod, a buffer sleeve and a telescopic rod; the support cross bar is horizontally arranged; the buffer rod vertically penetrates the support cross bar, and a plurality of buffer rods are arranged at intervals; one end of the buffer sleeve is connected to the support cross bar and the other end is sleeved on the telescopic rod, and the telescopic rod is connected to the blocking box.
[0014] In the above technical solution, an elastic member connected to the telescopic rod is arranged inside the buffer sleeve.
[0015] In the above technical solution, a second notch is opened on the side of the blocking box close to the slope, an eccentric wheel is fixedly sleeved on the rotating shaft, and an annular push-pull rod is fixedly arranged on the circumferential side wall of the eccentric wheel;
[0016] The telescopic rod passes through the second notch and is slidably connected to the annular push-pull rod.
[0017] In the above technical solution, the telescopic rod is provided with an arc-shaped notch that engages with the annular push-pull rod, and the arc-shaped notch is a major arc structure.
[0018] In the above technical solution, a guide rod is arranged on the side of the blocking box close to the slope, and the guide rod penetrates the support cross bar and is slidably connected to the support cross bar.
[0019] In the above technical solution, a driving assembly is further included. The driving assembly includes a driving gear and a driving rack; the buffer rod is rotatably connected to the support cross bar; the driving gear is sleeved on the buffer rod, and one end of the driving rack is connected to the blocking box and the other end is engaged with the driving gear.
[0020] In the above technical solution, a pressure sensor is arranged on the side of the blocking box close to the slope, and the pressure sensor controls the operation of the transfer motor.
[0021] In order to achieve the above second object, the technical solution of the present invention is: a method for using a geological disaster gravel blocking structure, which is characterized by including the following steps:
[0022] Step 1: When the gravel on the slope slides to the bottom of the slope, the elastic buffer component buffers the gravel. The gravel first acts on the buffer rod, and the buffer rod drives the support cross bar to move towards the blocking box under the pressure of the gravel. The buffer sleeve contracts along the telescopic rod, and the elastic member is adaptively compressed. The compression of the elastic member is used to decelerate the gravel. The decelerated gravel passes through between adjacent buffer rods and acts on the blocking box.
[0023] Step 2: As the number of gravels acting on the blocking box accumulates, when the pressure sensor of a certain group of blocking boxes detects that the pressure received by the blocking box is greater than the predetermined pressure value, the transfer motor drives the rotating shaft to rotate, and then drives the belt roller to rotate. The belt roller drives the transfer belt to operate. The transfer belt scrapes the gravel in contact with it through the tooth nails, and then laterally transfers the gravel to the adjacent blocking box, so as to reduce the number of gravels in the original blocking box and achieve pressure sharing.
[0024] Step 3: In Step 2, when the rotating shaft rotates, it drives the eccentric wheel to rotate. During the rotation of the eccentric wheel, the telescopic rod is driven to make a reciprocating movement through the annular push-pull rod. When the telescopic rod makes a reciprocating movement, it drives the support cross bar and the buffer rod to move synchronously. Since the lower end of the buffer rod is buried in the gravel pile, the buffer rod stirs the gravel pile, making the gravel pile in a moving state. With the transfer of the gravel by the transfer belt, the gravel inside the blocking box gradually decreases, and the gravel in the gravel pile can further slide onto the transfer belt and then be transferred by the transfer belt, so that the gravel inside the blocking box can be continuously reduced, thereby further reducing the pressure on the blocking box 10.
[0025] Step 4: Repeat Steps 2-3 to sequentially transfer the gravel concentrated inside a certain group of blocking boxes to the inside of the remaining blocking boxes, and use the remaining blocking boxes to jointly share the gravel pressure, thereby reducing the probability that a certain group of blocking boxes will tip over due to the large pressure from the gravel.
[0026] Compared with the prior art, the present invention has the following advantages:
[0027] 1) When there is a large amount of gravel inside a certain group of blocking boxes, resulting in a large pressure on the blocking box from the gravel, the transfer component inside the blocking box drives a part of the gravel inside the blocking box of this group to move laterally, so as to transfer a part of the gravel to the inside of the adjacent blocking box, thereby reducing the number of gravels inside the blocking box of this group, reducing the pressure on the blocking box of this group, and reducing the probability of tipping over of the blocking box of this group. Compared with the prior art, when there is a large amount of gravel inside a certain group of blocking boxes, resulting in a risk of tipping over of the blocking box of this group, it can transfer a part of the gravel concentrated inside the blocking box of this group to the inside of the adjacent blocking box, thereby reducing the pressure on the blocking box of this group and reducing the probability of tipping over of the blocking box of this group, and improving the blocking effect of the gravel.
[0028] 2) When the gravel on the slope body slides, the gravel slides to the bottom of the slope body and is then blocked inside several blocking boxes. During this process, the elastic buffer component is used to buffer the gravel sliding along the slope body, thereby reducing the force when the corresponding blocking box is impacted by the gravel and avoiding damage to the blocking box.
[0029] 3) The eccentric wheel of the present invention rotates to drive the telescopic rod, the telescopic sleeve, and the buffer rod to reciprocate. Through the meshing action between the driving gear and the driving rack, the buffer rod can rotate relative to the support crossbar, so that when the buffer rod moves inside the gravel pile, it can also obtain a rotating effect, enabling the movement of the buffer rod inside the gravel pile to proceed smoothly, thereby improving the stirring effect of the gravel pile. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Figure 1 is a schematic structural diagram of the present invention Figure One .
[0031] Figure 2 is a schematic structural diagram of the present invention Figure Two .
[0032] Figure 3 is a schematic structural diagram of the transfer belt.
[0033] Figure 4 is a schematic structural diagram of the blocking box.
[0034] Figure 5 is Figure 1 an enlarged view of part A in
[0035] Figure 6 is Figure 2 an enlarged view of part B in
[0036] Figure 7 is Figure 2 an enlarged schematic view of area C in
[0037] Among them, 100 - slope body, 200 - blocking box, 210 - first notch, 220 - second notch, 230 - guide rod, 240 - diagonal brace, 250 - fixed bottom plate, 300 - transfer component, 310 - power component, 311 - transfer motor, 312 - rotating shaft, 3121 - eccentric wheel, 3122 - annular push-pull rod, 313 - belt roller, 320 - transfer belt, 321 - tooth nail, 400 - elastic buffer component, 410 - support crossbar, 420 - buffer rod, 430 - buffer sleeve, tooth nail (321) - elastic member, 440 - telescopic rod, 500 - drive component, 510 - drive gear, 520 - drive rack. DETAILED DESCRIPTION OF THE INVENTION
[0038] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings. However, they do not constitute a limitation to the present invention and are only for illustration purposes. At the same time, the advantages of the present invention will become clearer and easier to understand through the description.
[0039] Referring to the accompanying drawings, it can be seen that: as Figure 1 and 2 shown, a geological disaster gravel blocking structure, characterized in that: it includes multiple groups of blocking boxes 200 arranged outside the slope body 100 and a transfer component 300 located inside the blocking box 200.
[0040] Two first notches 210 are provided on one side of the blocking box 200 close to the slope body 100, and the first notches 210 are arranged vertically.
[0041] The transfer component 300 includes a power component 310 and a transfer belt 320. The power component 310 includes a transfer motor 311, a rotating shaft 312, and two belt rollers 313.
[0042] The two belt rollers 313 are arranged at intervals inside the blocking box 200, and the transfer motor 311 is connected to one of the belt rollers 313 through the rotating shaft 312.
[0043] The transfer belt 310 is sleeved on the two belt rollers 313. The side of the transfer belt 310 close to the slope body 100 extends out of the blocking box 200 from the first notch 210 and is attached to the outer wall of the blocking box 200. When there is more gravel inside a certain group of the blocking boxes 200, the transfer component 300 inside the blocking box 200 drives a part of the gravel to move horizontally to transfer a part of the gravel to the inside of the adjacent blocking box 200, thereby reducing the amount of gravel inside the blocking box of this group, reducing the pressure on the blocking box of this group, and reducing the probability of the blocking box of this group tipping over.
[0044] A number of evenly distributed tooth nails 321 are provided on the side of the transfer belt 310 close to the slope body 100. Through the setting of the tooth nails 321, the friction between the transfer belt 310 and some gravel can be increased, thereby improving the transfer effect of the gravel. The tooth nails 321 are made of iron material and are riveted to the outer wall of the transfer belt 310.
[0045] As Figure 2As shown in Figure 6, it also includes an elastic buffer assembly 400 arranged between the slope 100 and the blocking box 200. The elastic buffer assembly 400 includes a support cross bar 410, a buffer rod 420, a buffer sleeve 430 and a telescopic rod 440; the support cross bar 410 is arranged horizontally; the buffer rod 420 vertically penetrates the support cross bar 410, and multiple buffer rods 420 are arranged at intervals; one end of the buffer sleeve 430 is connected to the support cross bar 410 and the other end is sleeved on the telescopic rod 440, and the telescopic rod 440 is connected to the blocking box 200; the elastic buffer assembly 400 is used to buffer gravel sliding down the slope 100, thereby reducing the force of the corresponding blocking box 200 being hit by the gravel, thereby preventing damage to the blocking box 200.
[0046] An elastic member connected to the telescopic rod 440 is disposed in the buffer sleeve 430 ; the elastic member can be a spring or a metal shrapnel.
[0047] like Figure 7 As shown, the arresting box 200 has a second notch 220 on the side close to the slope 100, and an eccentric wheel 3121 is fixedly mounted on the rotating shaft 312. An annular push-pull rod 3122 is fixedly mounted on the circumferential side wall of the eccentric wheel 3121.
[0048] The telescopic rod 440 passes through the second slot 220 and is slidably connected to the annular push-pull rod 3122 .
[0049] like Figure 7 As shown, the telescopic rod 440 is provided with an arc-shaped groove that engages with the annular push-pull rod 3122, and the arc-shaped groove is a major arc structure; through the mutual engagement between the arc-shaped groove with a major arc structure and the annular push-pull rod 3122, the annular push-pull rod 3122 can rotate compared to the telescopic rod 440, and the telescopic rod 440 cannot be detached from the outside of the annular push-pull rod 3122.
[0050] like Figure 6 and 7 As shown, the blocking box 200 is provided with a guide rod 230 on the side close to the slope 100. The guide rod 230 passes through the supporting cross bar 410 and is slidably connected to the supporting cross bar 410. When the rolling gravel acts on the buffer rod 420, the guide rod 230 cooperates with the supporting cross bar 410 to provide a guide for the movement of the supporting cross bar 410 and the buffer rod 420. Similarly, when the eccentric wheel 3121 rotates and pushes and pulls the telescopic rod 420, the guide rod 230 can also provide a guide for the movement of the supporting cross bar 410, the buffer sleeve 430 and the telescopic rod 420, so that the buffer rod 420 can move smoothly.
[0051] like Figure 6As shown in the figure, it further includes a driving component 500, and the driving component 500 includes a driving gear 510 and a driving rack 520; the buffer rod 420 is rotatably connected to the support cross bar 410; the driving gear 510 is sleeved on the buffer rod 420, one end of the driving rack 520 is connected to the blocking box 200, and the other end is meshed with the driving gear 510; the buffer rod 420 can move inside the gravel pile, so as to improve the stirring effect of the gravel pile.
[0052] A pressure sensor is arranged on one side of the blocking box 200 close to the slope body 100, and the pressure sensor controls the operation of the transfer motor 311; when the pressure from the gravel received by the blocking box 200 is greater than a predetermined pressure value, the pressure sensor sends an instruction to the transfer motor 311 inside the blocking box 200, and the transfer motor 311 receives the instruction and drives the rotating shaft 312 to rotate, and then drives the transfer belt 310 to operate, so as to automatically transfer some of the gravel inside the blocking box 200 on this group to the inside of the adjacent blocking box 200.
[0053] A using method of a geological disaster gravel blocking structure is characterized by including the following steps:
[0054] Step 1: When a geological disaster causes the gravel on the slope body 50 to slide, the gravel on the slope body 100 slides to the bottom of the slope body 100; the elastic buffer component 400 is used to buffer the gravel; the gravel first acts on the buffer rod 420, and the buffer rod 420 drives the support cross bar 410 to move towards the blocking box 200 under the pressure of the gravel, the buffer sleeve 430 contracts along the telescopic rod 440, and the elastic member tooth nails (321) are adaptively compressed, and the compression of the elastic member tooth nails (321) is used to decelerate the gravel, and the decelerated gravel passes through between adjacent buffer rods 420 and acts on the blocking box 200; since the sliding speed of the gravel is decelerated, the impact force of the gravel on the blocking box 200 is reduced, and the blocking box 200 is prevented from being damaged due to excessive impact force.
[0055] Step 2: As the number of gravel acting on the blocking box 200 accumulates, when the pressure sensor of a certain group of blocking boxes 200 detects that the pressure received by the blocking box 200 is greater than the predetermined pressure value, the transfer motor 311 drives the rotating shaft 312 to rotate, and then drives the belt roller 313 to rotate, the belt roller 313 drives the transfer belt 310 to operate, and the transfer belt 310 scrapes the gravel in contact with the transfer belt 310 through the tooth nails 321, and then laterally transfers the gravel to the adjacent blocking box 200, so as to reduce the number of gravel in the original blocking box 200, realize the sharing of pressure, and reduce the risk of the original blocking box 200 tipping over.
[0056] At this time, the transfer motor 311 inside the adjacent blocking box 200 starts, drives the belt roller 313 to rotate through the rotating shaft 312, and then drives the transfer belt 310 to operate. When the transfer belt 310 operates, it further transfers the crushed stones inside the adjacent blocking box 200. In this way, the crushed stones originally concentrated and piled up inside a certain group of blocking boxes 200 can be sequentially transferred to the inside of the remaining blocking boxes 200 respectively, and the remaining blocking boxes 200 are used to jointly share the pressure of the crushed stones, thereby reducing the probability that a certain group of blocking boxes 200 will tip over due to the large pressure from the crushed stones.
[0057] Step 3: In Step 2, while the rotating shaft 312 rotates, it drives the eccentric wheel 3121 to rotate. During the rotation of the eccentric wheel 3121, it drives the telescopic rod 440 to make reciprocating movements through the annular push-pull rod 3122. When the telescopic rod 440 makes reciprocating movements, it drives the support cross bar 410 and the buffer rod 420 to make synchronous reciprocating movements. Since the lower end of the buffer rod 420 is buried inside the crushed stone pile, the buffer rod 420 stirs the crushed stone pile, making the crushed stone pile in a moving state. As the transfer belt 310 transfers the crushed stones, the crushed stones inside the blocking box 200 gradually decrease, and the crushed stones in the crushed stone pile can further slide onto the transfer belt 310 and then be transferred by the transfer belt 310, so that the crushed stones inside the blocking box 200 can continuously decrease, thereby further reducing the pressure on the blocking box 10.
[0058] Step 4: Repeat Steps 2 - 3 to sequentially transfer the crushed stones concentrated and piled up inside a certain group of blocking boxes 200 to the inside of the remaining blocking boxes 200, and use the remaining blocking boxes 200 to jointly share the pressure of the crushed stones, thereby reducing the probability that a certain group of blocking boxes 200 will tip over due to the large pressure from the crushed stones.
[0059] In actual use, a plurality of diagonal braces 240 are arranged at intervals on the side of the blocking box 200 away from the slope body 100, and the diagonal braces 240 are fixedly connected to the ground through the fixed bottom plate 250 by inserting ground nails; through the arrangement of the fixed bottom plate 250 and the diagonal braces 240, support can be provided for the blocking box 200 from the outside of the blocking box 200, and a stable triangular structure is formed among the diagonal braces 240, the blocking box 200 and the ground, thereby improving the stability of the blocking box 200 and improving the blocking effect of the blocking box 200 on the crushed stones.
[0060] The transfer belt 310 is a synchronous belt, and the two belt rollers 313 are synchronous belt rollers. Through this setting, it can effectively prevent the transfer belt 310 from slipping between the transfer belt 310 and the belt rollers 313 due to excessive friction between the transfer belt 310 and the crushed stones, thereby improving the operating efficiency and operating effect of the transfer belt 310 and improving the lateral transfer effect of the crushed stones.
[0061] Other parts not described belong to the prior art.
Claims
1. A geological disaster gravel blocking structure, characterized in that: It includes multiple groups of blocking boxes (200) arranged on the outside of the slope body (100) and a transfer component (300) located inside the blocking box (200). On one side of the blocking box (200) close to the slope body (100), two first notches (210) are provided at intervals, and the first notches (210) are arranged vertically. The transfer component (300) includes a power component (310) and a transfer belt (320). The power component (310) includes a transfer motor (311), a rotating shaft (312), and two belt rollers (313). The two belt rollers (313) are arranged at intervals inside the blocking box (200), and the transfer motor (311) is connected to one of the belt rollers (313) through the rotating shaft (312). The transfer belt (310) is sleeved on the two belt rollers (313). On the side of the transfer belt (310) close to the slope body (100), it extends out of the blocking box (200) from the first notch (210) and is attached to the outer wall of the blocking box (200).
2. The geological disaster gravel blocking structure according to claim 1, characterized in that: On the side of the transfer belt (310) close to the slope body (100), a number of evenly distributed tooth nails (321) are provided.
3. A geological disaster gravel blocking structure according to claim 1, characterized in that: It also includes an elastic buffer component (400) arranged between the slope body (100) and the blocking box (200). The elastic buffer component (400) includes a support cross bar (410), a buffer rod (420), a buffer sleeve (430), and a telescopic rod (440); the support cross bar (410) is arranged horizontally; the buffer rod (420) vertically penetrates the support cross bar (410), and multiple buffer rods (420) are arranged at intervals; one end of the buffer sleeve (430) is connected to the support cross bar (410), and the other end is sleeved on the telescopic rod (440), and the telescopic rod (440) is connected to the blocking box (200).
4. A geological disaster gravel blocking structure according to claim 3, characterized in that: An elastic member (tooth nail (321)) connected to the telescopic rod (440) is arranged inside the buffer sleeve (430).
5. A geological disaster gravel blocking structure according to claim 3, characterized in that: On one side of the blocking box (200) close to the slope body (100), a second notch (220) is provided. An eccentric wheel (3121) is fixedly sleeved on the rotating shaft (312), and an annular push-pull rod (3122) is fixedly arranged on the circumferential side wall of the eccentric wheel (3121). The telescopic rod (440) passes through the second notch (220) and is slidably connected to the annular push-pull rod (3122).
6. The geological disaster gravel blocking structure according to claim 5, characterized in that: The telescopic rod (440) is provided with an arc-shaped notch that engages with the annular push-pull rod (3122), and the arc-shaped notch is a major arc structure.
7. A geological disaster gravel blocking structure according to claim 5, characterized in that: On the side of the blocking box (200) close to the slope body (100), a guide rod (230) is provided. The guide rod (230) penetrates the support cross bar (410) and is slidably connected to the support cross bar (410).
8. A geological disaster gravel blocking structure according to claim 5, characterized in that: It also includes a driving component (500). The driving component (500) includes a driving gear (510) and a driving rack (520); the buffer rod (420) is rotatably connected to the support cross bar (410); the driving gear (510) is sleeved on the buffer rod (420), and one end of the driving rack (520) is connected to the blocking box (200), and the other end is engaged with the driving gear (510).
9. A geological disaster gravel blocking structure according to claim 8, characterized in that: A pressure sensor is arranged on the side of the blocking box (200) close to the slope body (100), and the pressure sensor controls the operation of the transfer motor (311).
10. A method of using a geological disaster gravel blocking structure, characterized in that, It includes the following steps: Step 1: When the gravel on the slope body (100) slides to the bottom of the slope body (100); the gravel is buffered by the elastic buffer assembly (400). The gravel first acts on the buffer rod (420), and the buffer rod (420) drives the support cross bar (410) to move towards the blocking box (200) under the pressure of the gravel. The buffer sleeve (430) contracts along the telescopic rod (440), and the elastic member (tooth nail (321)) is adaptively compressed. The compression of the elastic member (tooth nail (321)) is used to decelerate the gravel, and the decelerated gravel passes through between adjacent buffer rods (420) and acts on the blocking box (200); Step 2: As the number of gravels acting on the blocking box (200) accumulates, when the pressure sensor of a certain group of blocking boxes (200) detects that the pressure received by the blocking box (200) is greater than the predetermined pressure value, the transfer motor (311) drives the rotating shaft (312) to rotate, and then drives the belt roller (313) to rotate. The belt roller (313) drives the transfer belt (310) to operate. The transfer belt (310) scrapes the gravel in contact with the transfer belt (310) through the tooth nails (321), and then laterally transfers the gravel to the adjacent blocking box (200), so as to reduce the number of gravels in the original blocking box (200) and achieve the sharing of pressure; Step 3: In Step 2, while the rotating shaft (312) rotates, it drives the eccentric wheel (3121) to rotate. During the rotation of the eccentric wheel (3121), the telescopic rod (440) is driven to make a reciprocating movement through the annular push-pull rod (3122). When the telescopic rod (440) makes a reciprocating movement, it drives the support cross bar (410) and the buffer rod (420) to move synchronously in a reciprocating manner. Since the lower end of the buffer rod (420) is buried inside the gravel pile, the buffer rod (420) stirs the gravel pile, making the gravel pile in a moving state. With the transfer effect of the transfer belt (310) on the gravel, the gravel inside the blocking box (200) gradually decreases, and the gravel in the gravel pile can further slide onto the transfer belt (310) and then be transferred by the transfer belt (310), so that the gravel inside the blocking box (200) can be continuously reduced, thereby further reducing the pressure received by the blocking box 10; Step 4: Repeat Steps 2-3 to sequentially transfer the gravel concentrated and piled inside a certain group of blocking boxes (200) to the inside of the remaining blocking boxes (200), and use the remaining blocking boxes (200) to jointly share the gravel pressure, so as to reduce the probability that a certain group of blocking boxes (200) will tip over due to the large pressure from the gravel.