An energy-absorbing supporting device based on energy-absorbing steel belt connection

Abstract

The application provides an energy-absorbing supporting device based on energy-absorbing steel belt connection, which comprises energy-absorbing anchor rods and first energy-absorbing steel belts, the energy-absorbing anchor rods are provided in multiple, the multiple energy-absorbing anchor rods are arranged in multiple rows on an anchoring body, and each energy-absorbing anchor rod is provided with an energy-absorbing tray at the bottom; the energy-absorbing anchor rods in each row are connected through the first energy-absorbing steel belts, the first energy-absorbing steel belt comprises a strip-shaped steel belt, filler grooves are arranged on both sides of the strip-shaped steel belt in the width direction, the filler grooves are arranged along the length direction of the strip-shaped steel belt, the filler grooves are filled with three-stage energy-absorbing materials, and the energy-absorbing anchor rods are arranged on the anchoring body after penetrating through the energy-absorbing tray and the strip-shaped steel belt, so that the strip-shaped steel belt is pressed on the anchoring body through the energy-absorbing tray. The supporting device is connected between the multiple energy-absorbing anchor rods through the first energy-absorbing steel belt, and the supporting performance is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mining, and in particular to an energy-absorbing support device based on energy-absorbing steel belt connections. Background Art

[0002] Anchor rods (anchor cables) are currently the most commonly used active support method for coal mine tunnels. Compared with tunnel support methods such as steel beams and steel sheds, they have the characteristics of simple structure, convenient construction and less consumables. Existing anchor rod (anchor cable) support usually sets multiple anchor rods (anchor cables) in the tunnel for anchoring. In order to improve the support performance between multiple anchor rods (anchor cables), steel bars are usually selected to connect multiple supporting anchor rods (anchor cables). However, the steel bars will break under the action of large impact in the tunnel, affecting the support performance. Summary of the Invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, the purpose of the present invention is to propose an energy-absorbing support device based on energy-absorbing steel belt connection. The support device realizes the connection between multiple energy-absorbing anchor rods by setting a first energy-absorbing steel belt, thereby improving the support performance. At the same time, by filling the first energy-absorbing steel belt with a third-level energy-absorbing material, the energy-absorbing performance of the first energy-absorbing steel belt can be achieved, effectively preventing the first energy-absorbing steel belt from being directly damaged under impact.

[0005] To achieve the above-mentioned purpose, the present invention proposes an energy-absorbing support device based on energy-absorbing steel belt connection, comprising:

[0006] Energy-absorbing anchor rods, wherein a plurality of energy-absorbing anchor rods are provided, and the plurality of energy-absorbing anchor rods are arranged in multiple rows on the anchor body, and an energy-absorbing tray is provided at the bottom of each energy-absorbing anchor rod;

[0007] The first energy-absorbing steel belt, each row of the energy-absorbing anchor rods is connected by the first energy-absorbing steel belt, the first energy-absorbing steel belt comprises a strip steel belt, both sides of the strip steel belt in the width direction are provided with filling grooves, the filling grooves are arranged along the length direction of the strip steel belt, the filling grooves are filled with third-level energy-absorbing materials, the energy-absorbing anchor rods pass through the energy-absorbing tray and the strip steel belt and are arranged on the anchor body, so as to press the strip steel belt onto the anchor body through the energy-absorbing tray.

[0008] Furthermore, the filling groove includes two V-shaped grooves, the two V-shaped grooves are connected and have opposite opening directions, the two V-shaped grooves are arranged along the length direction of the strip steel strip, the third-level energy-absorbing material is filled in the V-shaped groove, and a first sealing plate is provided at the opening of the two V-shaped grooves, and a second sealing plate is provided at both ends of the length direction of the V-shaped groove to block the third-level energy-absorbing material through the first sealing plate and the second sealing plate.

[0009] Furthermore, the energy-absorbing anchor comprises:

[0010] A breaking anchor cable, with locks provided at both ends of the breaking anchor cable;

[0011] An energy-absorbing cylinder, both ends of which are provided with fixers, and after the broken anchor cable passes through the energy-absorbing cylinder, the locking heads at both ends are respectively placed in the two fixers, and there is a gap between the locking head and the bottom of the energy-absorbing cylinder, and the gap is filled with a first-level energy-absorbing material. A limiting member is provided on the fixer to limit the locking head through the limiting member to prevent the locking head from falling out of the fixer, and an anchoring anchor cable and a locking anchor cable are respectively provided in the two fixers, and the energy-absorbing cylinder is located in the anchor body, and one end of the locking anchor cable extends out of the anchor body and passes through the strip steel belt to be connected with the energy-absorbing tray.

[0012] Furthermore, the holder includes a fixed cylinder, a sealing disk is provided at the bottom of the fixed cylinder, and the limiting member is a tapered hole structure provided at the end of the inner hole at the top of the cylinder;

[0013] The locking head is a conical locking head, and the conical locking head cooperates with the conical hole structure so that when the locking head moves under the pulling force to compress the first-level energy absorbing material, it is limited by the wedge surface of the locking head and the conical hole structure.

[0014] Furthermore, a mounting hole is provided on the sealing disk, and both ends of the anchoring cable and the locking anchor cable are provided with fixed locks, and the other end passes through the mounting hole. The fixed lock is located in the fixed cylinder, and the fixed lock is connected to the sealing disk.

[0015] Furthermore, it also includes a fastening cylinder, two of which are provided, and the two fastening cylinders are respectively sleeved on the outside of the two fixed cylinders, so as to limit the fixed cylinders through the fastening cylinders.

[0016] Furthermore, a feed port is provided on the side wall of the energy absorbing cylinder, a plug is provided at the feed port, through holes are provided on the two bottoms at both ends of the energy absorbing cylinder, and the two ends of the broken anchor cable respectively pass through the two through holes and then extend into the fixed cylinder to be connected with the lock head;

[0017] The energy absorbing cylinder is filled with a first-level energy absorbing material. The first-level energy absorbing material enters the energy absorbing cylinder through the feed port and then enters the gap between the locking heads on both sides and the bottom of the fixed cylinder through the through hole.

[0018] Furthermore, the energy-absorbing tray includes a cup-shaped buckle provided in the middle of the strip steel belt;

[0019] An energy absorbing cup is provided on the middle portion of the surface of the strip steel strip in the width direction, and a second-level energy absorbing material is provided in the energy absorbing cup;

[0020] The cup-shaped buckle comprises an arc-shaped cup-shaped body, a guide sleeve is provided at the bottom of the inner part of the arc-shaped cup-shaped body, the guide sleeve is arranged outside the energy absorbing cup, the top of the arc-shaped cup-shaped body is connected to the strip steel belt, there is a certain gap between the guide sleeve and the surface of the strip steel belt, and there is a certain gap between the energy absorbing cup and the bottom of the inner part of the arc-shaped cup-shaped body;

[0021] One end of the locking anchor cable extends out of the anchor body and passes through the strip steel belt, the second-level energy-absorbing material, the guide sleeve, and the bottom of the arc-shaped cup body in sequence, and is then connected to a pin end fixing body.

[0022] Furthermore, it also includes a plastic tube, the second-level energy absorbing material is filled in the plastic tube, and the outer wall of the plastic tube is connected to the inner wall of the energy absorbing cup.

[0023] Furthermore, it also includes a second energy-absorbing steel belt, a plurality of the second energy-absorbing steel belts are provided, and the second energy-absorbing steel belts and the first energy-absorbing steel belts are arranged crosswise.

[0024] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0026] Figure 1 This is a partial structural diagram of an energy-absorbing support device based on energy-absorbing steel belt connection proposed in one embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of the partial structure of an energy-absorbing support device based on energy-absorbing steel belt connection proposed in another embodiment of the present invention;

[0028] Figure 3 is a schematic diagram of a partial structure of a first energy-absorbing steel strip proposed in another embodiment of the present invention;

[0029] Figure 4 Another embodiment of the present invention proposes Figure 3 Schematic diagram of the local structure

[0030] Figure 5 1 is a schematic structural diagram of a strip steel strip proposed in another embodiment of the present invention;

[0031] Figure 6 1 is a schematic structural diagram of a strip steel strip proposed in another embodiment of the present invention;

[0032] Figure 7 is a schematic structural diagram of an energy-absorbing anchor rod proposed in another embodiment of the present invention;

[0033] Figure 8 This invention Figure 7 Schematic diagram of the local structure;

[0034] Figure 9 This invention Figure 7 Schematic diagram of the local structure;

[0035] Figure 10 This invention Figure 7 Schematic diagram of the local structure;

[0036] Figure 11 This is a schematic structural diagram of an energy-absorbing tray proposed in another embodiment of the present invention;

[0037] Figure 12 This is a schematic structural diagram of an energy-absorbing tray after impact deformation according to another embodiment of the present invention;

[0038] Figure 13 is a schematic structural diagram of a cup-shaped buckle provided in another embodiment of the present invention;

[0039] Figure 14 Another embodiment of the present invention proposes Figure 13 sectional view of

[0040] Figure 15 Another embodiment of the present invention proposes Figure 13 Schematic diagram of the local structure;

[0041] Figure 16 Another embodiment of the present invention proposes Figure 15 A top view of

[0042] Figure 17 is a structural schematic diagram of a hydraulic support proposed in another embodiment of the present invention;

[0043] Figure 18 This is a cross-sectional view of the partial structure of the second energy-absorbing steel belt of the present invention;

[0044] Figure 19 This invention Figure 18Schematic diagram of the local structure;

[0045] In the figure, 11, breaking anchor cable; 111, locking head; 12, energy absorbing cylinder; 121, fastening cylinder; 122, plugging device; 123, through hole; 13, fixing device; 131, limiting member; 132, fixing cylinder; 133, plugging disk; 134, mounting hole; 14, first energy absorbing material; 15, anchoring anchor cable; 16, locking anchor cable; 19, fixing locking head; 2, first energy absorbing steel belt; 21, strip steel belt; 22, filling groove; 221, V-shaped groove; 222, first sealing plate; 223, Second sealing plate; 23. Third-level energy-absorbing material; 24. Through hole; 3. Second energy-absorbing steel belt; 31. V-shaped steel belt; 32. V-shaped groove; 33. Fourth-level energy-absorbing material; 7. Anchor body; 8. Energy-absorbing tray; 81. Support plate; 82. Cup-shaped buckle; 821. Arc-shaped cup-shaped body; 8211. Conical cylindrical cup-shaped body; 8212. Annular plate; 822. Guide sleeve; 84. Energy-absorbing cup; 85. Energy-absorbing material; 86. Pin end fixing body; 87. Anchor body; 88. Gasket; 89. Plastic tube. DETAILED DESCRIPTION

[0046] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention. On the contrary, the embodiments of the present invention include all variations, modifications, and equivalents that fall within the spirit and scope of the appended claims.

[0047] Reference Figure 1-6 An embodiment of the present invention proposes an energy-absorbing support device based on energy-absorbing steel belt connection, including an energy-absorbing anchor rod 1. A plurality of energy-absorbing anchor rods 1 are provided. The plurality of energy-absorbing anchor rods 1 are arranged in multiple rows on an anchor body 7. An energy-absorbing tray 8 is provided at the bottom of each energy-absorbing anchor rod 1.

[0048] It can be understood that the multiple energy absorbing anchor rods 1 on the anchor body 7 are arranged in rows, with multiple energy absorbing anchor rods 1 arranged in each row, and an energy absorbing tray 8 is provided at the bottom of each energy absorbing anchor rod 1.

[0049] In addition, the energy-absorbing anchor rod 1 also includes a first energy-absorbing steel belt 2. Each row of energy-absorbing anchor rods 1 is connected by the first energy-absorbing steel belt 2. The first energy-absorbing steel belt 2 includes a strip steel belt 21. The strip steel belt 21 is provided with filling grooves 22 on both sides in the width direction. The filling grooves 22 are arranged along the length direction of the strip steel belt 21. The filling grooves 22 are filled with third-level energy-absorbing materials 23. The energy-absorbing anchor rod 1 is arranged on the anchor body 7 after passing through the energy-absorbing tray 8 and the strip steel belt 21, so that the strip steel belt 21 is pressed tightly against the anchor body 7 through the energy-absorbing tray 8.

[0050] It is understandable that the multiple energy-absorbing anchor rods 1 in each row are not connected to each other. In order to improve the energy-absorbing support performance, the multiple energy-absorbing anchor rods 1 in each row are connected together by a strip steel strip 21. In order to prevent the strip steel strip 21 from being directly impacted and affecting its lifespan, a filling groove 22 is provided on both the left and right sides (i.e., both sides in the width direction) of the strip steel strip 21. The energy absorption effect of the third-level energy-absorbing material 23 in the filling groove 22 achieves a certain protective effect, thereby effectively achieving the protective effect of the first energy-absorbing steel strip. Then, a plurality of through holes 24 are opened in the middle of the strip steel strip 21 along the length of the square. The energy-absorbing anchor rods 1 pass through the through holes 24 on the energy-absorbing tray 8 and the strip steel strip 21 and are then placed on the anchor body 7.

[0051] In some embodiments, the filling groove 22 includes two V-shaped grooves 221, the two V-shaped grooves 221 are connected and have opposite opening directions, the two V-shaped grooves 221 are arranged along the length direction of the strip steel strip, and the third-level energy-absorbing material 23 is filled in the V-shaped groove 221. A first sealing plate 222 is provided at the opening of the two V-shaped grooves 221, and a second sealing plate 223 is provided at both ends of the length direction of the V-shaped groove 221 to block the third-level energy-absorbing material 23 through the first sealing plate 222 and the second sealing plate 223.

[0052] It can be understood that the left and right ends of the strip steel strip 21 are bent downward and then upward to form a first V-shaped groove 221, and then bent downward to form a second V-shaped groove 221, so that the opening of the first V-shaped groove 221 is upward, and the opening of the second V-shaped groove 221 is downward, and the two V-shaped grooves 221 are along the length direction of the strip steel strip 221. In order to facilitate the third-level energy-absorbing material 23 to be filled in the V-shaped groove 221 without leakage, the third-level energy-absorbing material is filled in the V-shaped groove 221 and the first sealing plate 22 is used at the opening of the two V-shaped grooves 221. 2 is sealed. At this time, the third-level energy-absorbing material 23 in the filling groove 22 is sealed by the first sealing plate 222. In order to prevent the third-level energy-absorbing material 23 from leaking from the front and rear ends of the V-shaped groove 221, the two ends of the two V-shaped grooves 221 are sealed by the second sealing plate 223, so that the two ends of the two V-shaped grooves 221 will not leak. At this time, the first sealing plate 222 on the side close to the anchor body 7 is connected to the anchor body 7, so that the impact energy can be transmitted to the third-level energy-absorbing material 23 through the first sealing plate 222, and the energy absorption and buffering is performed by the third-level energy-absorbing material 23.

[0053] Reference Figure 7-10In some embodiments, the energy-absorbing anchor rod 1 includes a breaking anchor cable 11 and an energy-absorbing tube 12. Locking heads 111 are provided at both ends of the breaking anchor cable 11, and fixing devices 13 are provided at both ends of the energy-absorbing tube 12. After the breaking anchor cable 11 passes through the energy-absorbing tube 12, the locking heads 111 at both ends are respectively placed in the two fixing devices 13. There is a gap between the locking head 111 and the bottom of the energy-absorbing tube 12, and the gap is filled with a first-level energy-absorbing material 14. A limiting member 131 is provided on the fixing device 13 to limit the locking head 111 through the limiting member 131 to prevent the locking head 111 from falling out of the fixing device 13. Anchoring cables 15 and locking anchor cables 16 are respectively provided in the two fixing devices 13. The energy-absorbing tube 12 is located in the anchor body 7. One end of the locking anchor cable 15 extends out of the anchor body 7 and passes through the strip steel belt 21 to be connected with the energy-absorbing tray 8.

[0054] It can be understood that one end of the two fixers 13 is respectively connected and fixed with an anchoring anchor cable 15 and a locking anchor cable 16. After the broken anchor cable 11 passes through the energy absorbing cylinder 12, the locking heads 111 at both ends extend into the two fixers 13 respectively, and the limiting member 131 in the fixer 13 can limit the locking head 111. The connection between the energy absorbing cylinder 12 and the two fixers 13 at both ends is realized through the limiting action between the locking head 111 and the limiting member 131. When the anchoring anchor cable 15 is instantaneously subjected to a large force, the anchoring anchor cable 15 acts on the fixer 13. When the fixer 13 at one end of the anchoring anchor cable 15 is subjected to a large force, the locking head 111 in the fixer 13 compresses the first-level energy absorbing material 14 between the locking head and the energy absorbing cylinder 12, and absorbs external load energy through the first-level energy absorbing material 4 to resist impact energy. In addition, it should be noted that the first-level energy-absorbing material 14 can be an elastic energy-absorbing material or an energy-absorbing gel material, and the anchor body 7 can be a tunnel.

[0055] In some embodiments, the fixer 13 includes a fixed cylinder 132, a sealing disk 133 is provided at the bottom of the fixed cylinder 132, the limiting member 131 is a conical hole structure provided at the end of the inner hole at the top of the cylinder, and the locking head 111 is a conical locking head. The conical locking head cooperates with the conical hole structure so that when the locking head 111 moves under the pulling force to compress the first-level energy-absorbing material 14, it is limited by the wedge surface with the conical hole structure.

[0056] It can be understood that by setting the lock head 111 as a conical lock head, it can cooperate with the conical hole structure of the limiter 131. Under the action of tension, when the first-level energy-absorbing material 14 in the gap is compressed and buffered to the space between the conical lock head and the conical hole structure through the action of the wedge surface, it will be pulled tighter and tighter, thereby realizing the limiting effect between the lock head 111 and the limiter 131, and then realizing the limiting effect between the fixer 13 and the energy-absorbing cylinder 12.

[0057] In addition, the fixed cylinder 132 is a steel cylinder. In order to facilitate the installation of the lock head 111, the top of the fixed cylinder 132 is a two-petal structure with a certain degree of opening, so that the lock head 111 can be inserted between the two petals during installation, which is convenient for the installation of the lock head 111.

[0058] In some embodiments, a mounting hole 134 is provided on the sealing disk 133, and one end of the anchoring anchor 15 and the locking anchor 16 is provided with a fixed lock 19, and the other end passes through the mounting hole 134. The fixed lock 19 is located in the fixed cylinder 132, and the fixed lock 19 is connected to the sealing disk 133.

[0059] It can be understood that the mounting hole 134 provided in the sealing disk 133 can facilitate the installation of the anchoring anchor 15 and the locking anchor 16. In addition, one end of the anchoring anchor 15 and the locking anchor 16 extending into the two fixed cylinders 132 are provided with a fixed lock head 19, and the fixed lock head 19 is connected to the sealing disk 133. The fixed lock head 19 is used to limit the anchoring anchor 15 and the locking anchor 16 to prevent the anchoring anchor 15 and / or the locking anchor 16 from falling out of the fixed cylinder 132.

[0060] In some embodiments, it also includes a fastening cylinder 121, two fastening cylinders 121 are provided, and the two fastening cylinders 121 are respectively sleeved on the outside of the two fixed cylinders 132, so that the fixed cylinder 132 can be limited by the fastening cylinder 121. The fastening cylinder 121 can limit the fixer 13 through the limiting effect of the fastening cylinder 121 on the fixed cylinder 132, so that when the lock head 11 and the limiting member 13 (conical hole structure) are pulled tighter and tighter under the action of external force, the two-petal structure of the conical hole structure will be deformed and separated to a certain extent. At this time, the two fastening cylinders 121 are respectively sleeved on the outside of the two fixed cylinders 132, and the fixed cylinder 132 of the two-petal structure is limited by the fastening cylinder 121, so that the two-petal structure will not separate further, thereby preventing the lock head 111 from separating the two-petal structure too much and then falling out.

[0061] In some embodiments, a feed port is provided on the side wall of the energy absorbing cylinder 12, and a plug 122 is provided at the feed port. Through holes 123 are provided on the bottoms of both ends of the energy absorbing cylinder 12. The two ends of the broken anchor cable 1 pass through the two through holes 123 and then extend into the fixed cylinder 132 and connect with the lock head 111.

[0062] The energy absorbing cylinder 12 is filled with a first-level energy absorbing material 14 . The first-level energy absorbing material 14 enters the energy absorbing cylinder 12 through the feed port and then enters the gap between the locking heads 111 on both sides and the bottom of the fixed cylinder 132 through the through hole 123 .

[0063] It can be understood that during the construction process, the energy-absorbing anchor cable tray device is installed, and one end of the anchoring anchor cable 15 and the locking anchor cable 16 are respectively inserted into the two fixtures, and then the fixed lock heads 19 are respectively installed. Then, the two ends of the broken anchor cable 1 are respectively passed through the two through holes 123 and then extended into the fixed cylinder 132 to connect with the lock heads 111, and then the two lock heads are respectively inserted into the fixture 13, and then the two fastening cylinders 121 are respectively passed through the fixed anchor cable 15 and the locking anchor cable 16 and then sleeved on the outside of the fixture 13 to tighten and limit the position of the installation lock head 111, and the first-level energy-absorbing material 14 is passed into the energy-absorbing cylinder 12 from the feed port. After the two ends of the broken anchor cable 11 pass through the through hole 123 after installation, there is a certain gap between the broken anchor cable 1 and the through hole 123. At this time, part of the first-level energy-absorbing material 14 passed into the energy-absorbing tube 12 can enter the gap between the locking head 111 and the bottom of the fixed cylinder 132 from the through holes 123 at both ends of the energy-absorbing tube 12, so that the first-level energy-absorbing material 14 is filled between the locking head 111 and the fixed cylinder 132, completing the installation of the energy-absorbing anchor cable segment, drilling a long hole on the anchor body 7, expanding the hole at the end of the anchor body 7, installing the energy-absorbing anchor cable segment in the long hole, and injecting an anchoring agent into the long hole to realize the installation of the energy-absorbing anchor cable segment in the anchor body 7.

[0064] Reference Figure 11-16 In some embodiments, the energy absorbing tray 8 includes a cup-shaped buckle 82 arranged in the middle of the strip steel belt 21, an energy absorbing cup 84 is arranged in the middle of the surface of the strip steel belt 21 in the width direction, and a second-level energy absorbing material 85 is arranged in the energy absorbing cup 84, the cup-shaped buckle 82 includes an arc-shaped cup-shaped body 821, and a guide sleeve 822 is arranged at the bottom of the arc-shaped cup-shaped body 821. The guide sleeve 822 is sleeved on the outside of the energy absorbing cup 84, and the top of the arc-shaped cup-shaped body 821 is connected to the strip steel belt 21. There is a certain gap between the guide sleeve 822 and the surface of the strip steel belt 21, and there is a certain gap between the energy absorbing cup 84 and the bottom of the arc-shaped body 821. After one end of the locking anchor cable 16 extends out of the anchor body 7, it passes through the strip steel belt 21, the second-level energy absorbing material 85, the guide sleeve 822, and the bottom of the arc-shaped cup-shaped body 821 in sequence, and is connected to the pin end fixing body 86.

[0065] It is understood that the left and right sides of the strip steel strip 21 are bent to form filling grooves, while the middle portion is flat. The cup-shaped buckle 82 can be connected to the strip steel strip. When the anchor cable 15 is subjected to an impact load, the force is transmitted to the breaking anchor cable 11 through the fixer 13 and the energy absorbing tube 12. The breaking anchor cable 11 then transmits the force to the locking anchor cable 16 through the fixer 3. The locking anchor cable 16 uses the pin end fixing body 86 to tightly attach the strip steel strip 21 and the cup-shaped buckle 82 to the anchor body 7, actively supporting the anchor body 7. In addition, the strip steel strip 21, the energy absorbing cup 84, the arc-shaped cup 821, and the guide sleeve 822 are all made of steel. In addition, when the locking anchor cable 6 is supporting normally, the pin end fixing body 86 applies a force to the bottom of the arc-shaped cup 21, causing the arc-shaped cup 21 to deform under the force, and the load is transmitted to the strip steel strip 21 through the cup-shaped buckle 82.

[0066] In detail, when the anchor body 7 is impacted, the impact on the anchor cable 15 is transmitted to the locking anchor cable 16 through the fixer 13 and the energy absorbing tube 12. After the locking anchor cable 16 is subjected to the force, the pin end fixing body 86 applies a force to the cup-shaped buckle 82 and the support plate 81. The arc-shaped cup-shaped body 821 of the cup-shaped buckle 82 is deformed by the force. On the one hand, the outer surface slides along the bottom surface of the strip steel belt 21, and the arc-shaped cup-shaped body 821 on the cup-shaped buckle 82 is pressed downward. Since there is a certain gap between the guide sleeve 822 and the surface of the support plate 81, there is a certain gap between the energy absorbing cup 84 and the bottom inside the arc-shaped cup-shaped body 821. Under the action of pressure, the guide sleeve 822 and the support plate 81 contact each other with a gap of 0. During this period, the second-stage energy absorbing material 85 is directly affected by the impact load, and the second-stage energy absorbing material 5, which is more sensitive to strain rate, instantly aggregates to absorb energy and consumes the impact energy. The materials of the second-stage energy absorbing material 85, the first-stage energy absorbing material 4 and the third-stage energy absorbing material are the same.

[0067] In some embodiments, a gasket 88 is further included. The gasket 88 is disposed between the pin end fixing body 86 and the arc-shaped cup-shaped body 821 , and the gasket 88 is connected to the pin end fixing body 86 and the arc-shaped cup-shaped body 821 .

[0068] It can be understood that when the gasket 88 is arranged between the pin end fixing body 86 and the arc-shaped cup-shaped body 821, and is connected to the bottom of the arc-shaped cup-shaped body 821, when the locking anchor cable 6 is supported, the pin end fixing body 86 applies a force to the cup-shaped buckle (i.e., the arc-shaped cup-shaped body 821) through the gasket 88.

[0069] In some embodiments, a plastic tube 89 is further included. The second-stage energy absorbing material 85 is filled in the plastic tube 89 , and the outer wall of the plastic tube 89 is connected to the inner wall of the energy absorbing cup 84 .

[0070] It can be understood that the plastic tube 89 is made of hard material and is used to load the second-stage energy-absorbing material 85. The energy-absorbing cup 84 is sleeved on the outside of the plastic tube 89 and connected to the plastic tube 89 to limit the plastic tube 89. The arc-shaped cup-shaped body 821 is pressed downward until the plastic tube 89 is connected to the bottom inside the arc-shaped cup-shaped body 821. When pressure is continued to be applied, the plastic tube 89 is broken by the force.

[0071] In some embodiments, the arc-shaped cup-shaped body 821 includes a conical cylindrical cup-shaped body 8211, the bottom of the conical cylindrical cup-shaped body 8211 is located at the small mouth end of the conical cylinder, and the conical cylindrical cup-shaped body 8211 is located at the large mouth end of the conical cylinder and folded outward to form an annular plate 8212, and the annular plate 8212 is connected to the surface of the support plate 1.

[0072] It can be understood that, under the action of the impact force, the conical cylindrical cup-shaped body 8211 is deformed by the force, and the annular plate 8212 moves along the surface of the supporting plate 1.

[0073] In some embodiments, the distance between the top of the energy absorbing cup 84 and the bottom of the arc-shaped cup 821 is a, and the distance between the end of the guide sleeve 822 away from the bottom of the arc-shaped cup 821 and the bottom surface of the strip steel plate 21 is b, where a≤b.

[0074] It can be understood that because gap a is smaller than gap b, arcuate cup 821 is pressed downward by the impact force, and plastic tube 89 first contacts the inner bottom of arcuate cup 821. Under the force, plastic tube 89 ruptures under the force. Then, until guide sleeve 822 contacts strip steel plate 21, gap b = 0. During this period, second-stage energy-absorbing material 85 is directly subjected to the impact load. The strain-rate-sensitive second-stage energy-absorbing material 85 instantly aggregates and absorbs the impact energy. Furthermore, the bottom end of energy-absorbing cup 84 is welded to the surface of support plate 81, and guide sleeve 822 is welded to the inner bottom of arcuate cup 821.

[0075] Reference Figure 17-19 In some embodiments, a second energy absorbing steel belt 3 is further included. A plurality of second energy absorbing steel belts 3 are provided, and the second energy absorbing steel belts 3 and the first energy absorbing steel belts 2 are cross-arranged.

[0076] It can be understood that by providing multiple strip grooves 4 on the top of the top beam of the hydraulic support, the second energy absorbing steel belt 3 can be set in the groove, and the second energy absorbing steel belt 3 is supported by the top beam, and the second energy absorbing steel belt 3 and the first energy absorbing steel belt 2 are vertically arranged, and the second energy absorbing steel belt 3 passes between the energy absorbing anchor rods on the first energy absorbing steel belt 2, and the second energy absorbing steel belt 3 is connected to the first energy absorbing steel belt 2, and an upward supporting force is applied to the second energy absorbing steel belt 3 by the top beam, and the second energy absorbing steel belt 3 is pressed on the first energy absorbing steel belt 2, so that multiple first energy absorbing steel belts 2 are connected through the second energy absorbing steel belt 3.

[0077] The second energy-absorbing steel belt 3 includes a V-shaped steel belt 31, which is formed by bending a steel belt to form a plurality of V-shaped grooves 32 with alternating upper and lower openings. Each V-shaped groove 32 is filled with a fourth-level energy-absorbing material 33. Upper and lower sealing plates 34 and 35 are provided above and below the V-shaped steel belt 31, respectively, to seal the fourth-level energy-absorbing material 33 in the upper and lower V-shaped grooves. Furthermore, baffles are provided in front, behind, and on the left and right sides of the V-shaped steel belt 31 to prevent leakage of the fourth-level energy-absorbing material 33. Filling the second energy-absorbing steel belt 3 with the fourth-level energy-absorbing material 33 provides a certain degree of impact protection.

[0078] It should be noted that, in the description of the present invention, the terms "first," "second," etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0079] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code comprising one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present invention includes alternative implementations in which functions may be performed out of the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present invention pertain.

[0080] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0081] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An energy-absorbing support device based on energy-absorbing steel belt connection, characterized in that: include: Energy-absorbing anchor rods, wherein a plurality of energy-absorbing anchor rods are provided, and the plurality of energy-absorbing anchor rods are arranged in multiple rows on the anchor body, and an energy-absorbing tray is provided at the bottom of each energy-absorbing anchor rod; a first energy-absorbing steel belt, wherein the energy-absorbing anchor rods in each row are connected by the first energy-absorbing steel belt, the first energy-absorbing steel belt comprising a strip steel belt, wherein both sides of the strip steel belt in the width direction are provided with filling grooves, the filling grooves being arranged along the length direction of the strip steel belt, the filling grooves being filled with a third-level energy-absorbing material, the energy-absorbing anchor rods passing through the energy-absorbing tray and the strip steel belt and then being arranged on the anchor body, so that the strip steel belt is pressed against the anchor body through the energy-absorbing tray; The energy-absorbing anchor rod includes a breaking anchor cable and an energy-absorbing tube, and locking heads are provided at both ends of the breaking anchor cable. Fixers are provided at both ends of the energy-absorbing tube. After the breaking anchor cable passes through the energy-absorbing tube, the locking heads at both ends are respectively placed in the two fixers. There is a gap between the locking head and the bottom of the energy-absorbing tube, and the gap is filled with a first-level energy-absorbing material. A limiting member is provided on the fixer to limit the locking head through the limiting member to prevent the locking head from falling out of the fixer. An anchoring cable and a locking anchor cable are respectively provided in the two fixers. The energy-absorbing tube is located in the anchor body. One end of the locking anchor cable extends out of the anchor body and passes through the strip steel belt to be connected with the energy-absorbing tray.

2. The energy-absorbing support device based on energy-absorbing steel belt connection according to claim 1 is characterized in that: The filling groove includes two V-shaped grooves, which are connected and have opposite opening directions. The two V-shaped grooves are arranged along the length direction of the strip steel strip. The third-level energy-absorbing material is filled in the V-shaped grooves. A first sealing plate is provided at the opening of the two V-shaped grooves, and a second sealing plate is provided at both ends of the V-shaped groove in the length direction to block the third-level energy-absorbing material through the first sealing plate and the second sealing plate.

3. The energy-absorbing support device based on energy-absorbing steel belt connection according to claim 1 is characterized in that: The holder comprises a fixed cylinder, a sealing disk is provided at the bottom of the fixed cylinder, and the limiting member is a tapered hole structure provided at the end of the inner hole at the top of the cylinder; The locking head is a conical locking head, and the conical locking head cooperates with the conical hole structure so that under the action of tension, the conical locking head moves to compress the first-level energy absorbing material and then limits the position with the conical hole structure through the action of the wedge surface.

4. The energy-absorbing support device based on energy-absorbing steel belt connection according to claim 3 is characterized in that: The sealing disk is provided with a mounting hole, and both ends of the anchoring cable and the locking anchor cable are provided with fixed locks, and the other end passes through the mounting hole. The fixed lock is located in the fixed cylinder, and the fixed lock is connected to the sealing disk.

5. The energy-absorbing support device based on energy-absorbing steel belt connection according to claim 3 is characterized in that: It also includes a fastening cylinder, two of which are provided. The two fastening cylinders are respectively sleeved on the outside of the two fixed cylinders, so as to limit the fixed cylinders through the fastening cylinders.

6. The energy-absorbing support device based on energy-absorbing steel belt connection according to claim 5 is characterized in that: A feed port is provided on the side wall of the energy absorbing cylinder, and a plug is provided at the feed port. Through holes are provided on the two bottoms at both ends of the energy absorbing cylinder. The two ends of the broken anchor cable respectively pass through the two through holes and then extend into the fixed cylinder to be connected with the lock head. The energy absorbing cylinder is filled with a first-level energy absorbing material. The first-level energy absorbing material enters the energy absorbing cylinder through the feed port and then enters the gap between the locking heads on both sides and the bottom of the fixed cylinder through the through hole.

7. The energy-absorbing support device based on energy-absorbing steel belt connection according to claim 1 is characterized in that: The energy absorbing tray includes a cup-shaped buckle provided in the middle of the strip steel belt; An energy absorbing cup is provided on the middle portion of the surface of the strip steel strip in the width direction, and a second-level energy absorbing material is provided in the energy absorbing cup; The cup-shaped buckle comprises an arc-shaped cup-shaped body, a guide sleeve is provided at the bottom of the inner part of the arc-shaped cup-shaped body, the guide sleeve is arranged outside the energy absorbing cup, the top of the arc-shaped cup-shaped body is connected to the strip steel belt, there is a certain gap between the guide sleeve and the surface of the strip steel belt, and there is a certain gap between the energy absorbing cup and the bottom of the inner part of the arc-shaped cup-shaped body; One end of the locking anchor cable extends out of the anchor body and passes through the strip steel belt, the second-level energy-absorbing material, the guide sleeve, and the arc-shaped cup-shaped body in sequence. The bottom of the arc-shaped cup-shaped body is connected to a pin end fixing body.

8. The energy-absorbing support device based on energy-absorbing steel belt connection according to claim 7 is characterized in that: It also includes a plastic cylinder, in which the second-level energy absorbing material is filled, and the outer wall of the plastic cylinder is connected to the inner wall of the energy absorbing cup.

9. The energy-absorbing support device based on energy-absorbing steel belt connection according to claim 1, characterized in that: It also includes a second energy-absorbing steel belt, wherein a plurality of the second energy-absorbing steel belts are provided, and the second energy-absorbing steel belts and the first energy-absorbing steel belts are arranged crosswise.

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