Shield segment protection device

Abstract

The invention relates to the technical field of shield tunnel construction, and discloses a shield segment protection device which comprises a supporting plate, a first damping assembly and second damping assemblies, the supporting plate is provided with at least one first mounting groove and at least two oppositely-arranged second mounting grooves, one end of the first damping assembly is movably arranged in the first mounting groove, and the other end of the first damping assembly is movably arranged in the second mounting groove. The first damping assembly moves in the first mounting groove in the first direction, one ends of the at least two second damping assemblies are movably arranged in the second mounting groove, and the oppositely-arranged second damping assemblies move in the second direction. According to the shield segment, the first damping assembly moves in the first mounting groove in the first direction to absorb part of impact, meanwhile, the second damping assembly moves in the second mounting groove in the second direction to absorb part of impact again, and impact is absorbed through the first damping assembly and the second damping assembly together; therefore, the damage of vibration or impact to the shield segment can be reduced, and the protection effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of shield tunnel construction, and in particular to a shield segment protection device. Background Art

[0002] The shield segment is the main assembly component of shield construction and the innermost barrier of the tunnel. It is responsible for resisting soil pressure, groundwater pressure and some special loads. The shield segment is the permanent lining structure of the shield tunnel. The quality of the shield segment is directly related to the overall quality and safety of the tunnel, and affects the waterproof performance and durability of the tunnel. The shield segments need to be protected during transportation, storage and construction to prevent damage to the shield segments.

[0003] In the prior art, corner guards are usually provided at the corners of shield segments to protect the shield segments. However, the protective effect of such corner guards is limited. When the shield segments are subjected to strong collisions or impacts, it is difficult to play a protective role. Summary of the invention

[0004] In view of this, the present invention provides a shield segment protection device to solve the problem in the prior art that it is difficult to provide corner guards for shield segments to protect against strong collisions or impacts.

[0005] The present invention provides a shield segment protection device, including a support plate, a first shock-absorbing assembly and a second shock-absorbing assembly. The support plate is provided with at least one first mounting groove and at least two oppositely arranged second mounting grooves, the first mounting groove is located between the second mounting grooves, one end of the first shock-absorbing assembly is movably arranged in the first mounting groove, and the other end is suitable for abutting against the shield segment, the first shock-absorbing assembly moves along a first direction in the first mounting groove, at least two second shock-absorbing assemblies have one end movably arranged in the second mounting groove, and the other end is suitable for abutting against the shield segment, and the oppositely arranged second shock-absorbing assemblies move along a second direction.

[0006] Beneficial effects: The present invention places the shield segment above the first shock-absorbing assembly and the second shock-absorbing assembly. When the shield segment is subjected to vibration or impact, the shield segment causes the first shock-absorbing assembly to move in the first installation groove along the first direction to absorb part of the impact. At the same time, the second shock-absorbing assembly moves in the second installation groove along the second direction to absorb part of the impact again. The first shock-absorbing assembly and the second shock-absorbing assembly jointly absorb the impact, thereby reducing the damage to the shield segment caused by vibration or impact and improving the protection effect.

[0007] In an optional embodiment, the first shock absorbing assembly includes a first fixed rod, a displacement block, a first support member and a first elastic member. The first fixed rod is installed in the first mounting groove along a first direction. The two displacement blocks are movably installed on the first fixed rod. A first inclined surface is provided on the opposite side of the displacement block. A second inclined surface matching the first inclined surface is provided at one end of the first support member. The second inclined surface is movably connected to the first inclined surface, and the other end is suitable for abutting against the shield segment. One end of the two first elastic members is connected to the inner wall of the first mounting groove, and the other end is connected to the side of the displacement block facing away from each other.

[0008] Beneficial effect: The present invention movably installs two displacement blocks on the first fixed rod. When the shield segment is subjected to vibration or impact, the shield segment generates downward pressure on the first support member. The first support member transfers the pressure to the displacement blocks on both sides through the second inclined surface, pushing the displacement blocks away from each other. At this time, the displacement blocks cause the first elastic member to produce elastic deformation and convert the pressure into elastic potential energy, thereby reducing the damage to the shield segment caused by vibration or impact and improving the protection effect.

[0009] In an optional embodiment, the second shock absorbing assembly includes a second fixed rod, a second support member and a second elastic member. The second fixed rod is installed in the second mounting groove along the second direction. One end of the second support member is movably installed on the second fixed rod, and the other end is suitable for abutting against the shield segment. The second elastic member is arranged in the second mounting groove, one end of the second elastic member is connected to the second support member, and the other end is connected to the inner wall of the second mounting groove.

[0010] Beneficial effect: The present invention movably sets the second support member on the second fixed rod. When the shield segment is subjected to vibration or impact, the shield segment generates downward pressure on the second support member, pushing the relative second support members away from each other. At this time, the second support member causes the second elastic member to produce elastic deformation, further converting the pressure into elastic potential energy, thereby reducing the damage to the shield segment caused by vibration or impact and improving the protection effect.

[0011] In an optional embodiment, two second elastic members are provided, respectively located on two sides of the second supporting member.

[0012] Beneficial effect: The present invention arranges second elastic members on both sides of the second support member. When vibration or impact causes the second support member to be displaced, the second elastic member on one side is compressed and the second elastic member on the other side is pulled. While absorbing vibration or impact, the second support member can also be provided with the ability to restore to its original position, thereby keeping the shield segment stable and avoiding large shaking.

[0013] In an optional embodiment, the shield segment protection device further includes an anti-collision component, which is disposed on the support plate and is located on the side of the shield segment.

[0014] Beneficial effect: The present invention arranges an anti-collision component on the side of the shield segment to avoid damage to the shield segment caused by lateral impact.

[0015] In an optional embodiment, the anti-collision assembly includes a mounting plate, a protective plate and a buffer assembly. The mounting plate is arranged on the support plate and is located on the side of the second shock absorbing assembly facing away from each other. The protective plate is movably arranged on the side of the mounting plate away from the second shock absorbing assembly. A plurality of buffer assemblies are arranged between the mounting plate and the protective plate.

[0016] Beneficial effect: The present invention arranges a plurality of buffer components between the mounting plate and the protective plate. When a lateral impact occurs, the external force first contacts the protective plate and pushes the protective plate toward the shield segment. At this time, the buffer component can absorb part of the impact caused by the external force, thereby avoiding damage to the shield segment caused by the impact.

[0017] In an optional embodiment, the buffer assembly includes a third elastic member and a first connecting member, the third elastic member is arranged between the mounting plate and the protective plate, one end of the first connecting member is connected to the third elastic member, and the other end is connected to the protective plate.

[0018] Beneficial effect: The present invention arranges a third elastic member between the mounting plate and the protective plate. When the protective plate is hit laterally, the impact force generates a horizontal thrust on the protective plate, pushing the protective plate to move toward the direction of the shield segment. At this time, the third elastic member is compressed by the first connecting member connected to the protective plate, converting the impact force into elastic force, absorbing part of the impact generated by the external force, thereby avoiding damage to the shield segment caused by the impact.

[0019] In an optional embodiment, the buffer assembly also includes a fixing member, which is arranged between the mounting plate and the protective plate, a mounting cavity is provided inside the fixing member, an opening is provided at one end of the fixing member, a third elastic member is installed in the mounting cavity, and one end of the first connecting member passes through the opening and is connected to the third elastic member.

[0020] Beneficial effect: The present invention installs the third elastic member in the installation cavity, and one end of the first connecting member passes through the opening to be connected to the third elastic member. When the protective plate squeezes the first connecting member, the fixing member can support the third elastic member and the first connecting member, so that the movement trajectory of the first supporting member remains in a straight line. At the same time, the installation cavity can make the third elastic member more stable.

[0021] In an optional embodiment, the buffer assembly also includes a movable part, a second connecting part, a limiting part and a fourth elastic part. The movable part is movably arranged in the installation cavity, the third elastic part is connected to the movable part, the second connecting part passes through the opening, and one end thereof is connected to the movable part, the limiting part is connected to one end of the second connecting part away from the movable part, and the fourth elastic part is arranged between the fixing part and the limiting part.

[0022] Beneficial effect: The present invention arranges a fourth elastic member between the fixing member and the limiting member. When an external force hits the protective plate, the third elastic member is compressed by the movable member, and at the same time the limiting member compresses the fourth elastic member. The external force is converted into elastic force through the joint action of the third elastic member and the fourth elastic member, thereby avoiding damage to the shield segment caused by the impact.

[0023] In an optional embodiment, the shield segment protection device also includes a placement plate and a protective cover, the placement plate is arranged on the top of the first shock absorbing assembly, the shield segment is suitable for being placed above the placement plate, and the protective cover is suitable for being sleeved on the outside of the shield segment.

[0024] Beneficial effect: The present invention arranges a protective cover on the outside of the shield segment. When a plurality of shield segments are stacked, the protective cover reduces the wear between the shield segments and prolongs the service life of the shield segments. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A schematic diagram of the three-dimensional structure of a shield segment protection device according to an embodiment of the present invention;

[0027] Figure 2 A schematic cross-sectional view of a three-dimensional structure of a shield segment protection device according to an embodiment of the present invention in a first direction;

[0028] Figure 3 A schematic cross-sectional view of a three-dimensional structure of a shield segment protection device according to an embodiment of the present invention in the second direction;

[0029] Figure 4 The present invention is a schematic diagram of the three-dimensional structure of a buffer assembly in a shield segment protection device according to an embodiment of the present invention.

[0030] Description of reference numerals:

[0031] 1. Support plate; 101. First mounting slot; 102. Second mounting slot;

[0032] 2. First shock absorbing assembly; 201. First fixing rod; 202. Displacement block; 203. First supporting member; 204. First elastic member;

[0033] 3. Second shock absorbing assembly; 301. Second fixing rod; 302. Second supporting member; 303. Second elastic member;

[0034] 4. Anti-collision assembly; 401. Mounting plate; 402. Protective plate; 403. Buffer assembly; 4031. Third elastic member; 4032. First connecting member; 4033. Fixed member; 4034. Movable member; 4035. Second connecting member; 4036. Limiting member; 4037. Fourth elastic member;

[0035] 5. Place the board;

[0036] 6. Protective cover;

[0037] 7. Shield segment. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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 those skilled in the art without creative work are within the scope of protection of the present invention.

[0039] Combine the following Figures 1 to 4 , describing an embodiment of the present invention.

[0040] According to an embodiment of the present invention, Figures 1 to 4 As shown, a shield segment protection device is provided, including a support plate 1, a first shock-absorbing assembly 2 and a second shock-absorbing assembly 3. The support plate 1 is provided with at least one first mounting groove 101 and at least two oppositely arranged second mounting grooves 102. The first mounting groove 101 is located between the second mounting grooves 102. One end of the first shock-absorbing assembly 2 is movably arranged in the first mounting groove 101, and the other end is suitable for abutting against the shield segment 7. The first shock-absorbing assembly 2 moves in the first mounting groove 101 along the first direction. At least two second shock-absorbing assemblies 3 are movably arranged at one end in the second mounting groove 102, and the other end is suitable for abutting against the shield segment 7. The oppositely arranged second shock-absorbing assemblies 3 move along the second direction.

[0041] Specifically, in this embodiment, the support plate 1 is not specifically limited. For example, in this embodiment, the support plate 1 is in the shape of a rectangular plate, and the plane size of the support plate 1 is larger than the plane size of the shield segment 7.

[0042] like Figures 1 to 3As shown, in this embodiment, the first mounting groove 101 and the second mounting groove 102 are not specifically limited. For example, in this embodiment, a first mounting groove 101 is provided in the middle of the top of the support plate 1, and a second mounting groove 102 is provided at each of the positions near the four corners of the top of the support plate 1. The four second mounting grooves 102 are symmetrically arranged in pairs, and the first mounting groove 101 is located in the middle of the four second mounting grooves 102. The first mounting groove 101 and the second mounting groove 102 are rectangular grooves, and the length direction of the first mounting groove 101 is the same as the first direction, and the length direction of the second mounting groove 102 is the same as the second direction.

[0043] In this embodiment, Figure 1 As shown, the first direction is the X-axis direction, the second direction is the Y-axis direction, and the third direction is the Z-axis direction. The first direction, the second direction and the third direction are perpendicular to each other. The first direction is the same as the axial direction when the shield segment 7 is placed.

[0044] In this embodiment, Figures 1 to 3 As shown, the first shock absorbing assembly 2 is movably installed in the first installation groove 101, and the four second shock absorbing assemblies 3 are respectively installed in the second installation grooves 102. The shield segment 7 is placed on the top of the first shock absorbing assembly 2 and the second shock absorbing assembly 3. When the shield segment 7 is vibrated or impacted, the external force causes the first shock absorbing assembly 2 to move in the first installation groove 101 along the first direction, and the second shock absorbing assembly 3 to move in the second installation groove 102 along the second direction away from the first assembly.

[0045] The present invention places the shield segment 7 above the first shock absorbing assembly 2 and the second shock absorbing assembly 3. When the shield segment 7 is subjected to vibration or impact, the external force acting on the shield segment 7 causes the first shock absorbing assembly 2 to move in the first installation groove 101 along the first direction to absorb part of the impact. At the same time, the second shock absorbing assembly 3 moves in the second installation groove 102 along the second direction to absorb part of the impact again. The first shock absorbing assembly 2 and the second shock absorbing assembly 3 jointly absorb the impact, thereby reducing the damage caused by the vibration or impact to the shield segment 7 and improving the protection effect.

[0046] In one embodiment, Figures 1 to 3 As shown, the first shock absorbing assembly 2 includes a first fixed rod 201, a displacement block 202, a first support member 203 and a first elastic member 204. The first fixed rod 201 is installed in the first installation groove 101 along the first direction. The two displacement blocks 202 are movably installed on the first fixed rod 201. A first inclined surface is provided on the opposite side of the displacement block 202. A second inclined surface matching the first inclined surface is provided at one end of the first support member 203. The second inclined surface is movably connected to the first inclined surface, and the other end is suitable for abutting against the shield segment 7. One end of the two first elastic members 204 is connected to the inner wall of the first installation groove 101, and the other end is connected to the side of the displacement block 202 facing away from each other.

[0047] Specifically, in this embodiment, the first fixing rod 201 is in the shape of a cylindrical rod and is fixedly installed in the first installation groove 101 along the first direction. The two displacement blocks 202 are movably installed on the first fixing rod 201. The displacement blocks 202 can slide on the first fixing rod 201 along the first direction. The two first elastic members 204 are sleeved on the first fixing rod 201. One end of the first elastic member 204 abuts against the displacement block 202, and the other end abuts against the inner wall of the first installation groove 101. The first inclined surface is provided on the opposite side of the two displacement blocks 202, and the direction of the first inclined surface faces the shield segment 7. The first support member 203 is provided Between the two displacement blocks 202, the top of the first support member 203 abuts against the bottom of the shield segment 7, and second inclined surfaces facing the support plate 1 are provided on both sides of the first support member 203, and the second inclined surfaces abut against the first inclined surfaces. When the shield segment 7 is vibrated or impacted, the shield segment 7 moves the first support member 203 downward in the vertical direction under the action of gravity, and displacement occurs between the second inclined surface and the first inclined surface, so that the two displacement blocks 202 move away from each other, and the side of the displacement block 202 squeezes the first elastic member 204, converting kinetic energy into elastic potential energy, thereby absorbing the vibration or impact of the shield segment 7.

[0048] In this embodiment, the first elastic member 204 is not specifically limited. For example, in this embodiment, the first elastic member 204 is a spring. In some other embodiments, the first elastic member 204 may also be a spring sheet.

[0049] The present invention movably installs two displacement blocks 202 on the first fixing rod 201. When the shield segment 7 is subjected to vibration or impact, the shield segment 7 generates downward pressure on the first support member 203. The first support member 203 transmits the pressure to the displacement blocks 202 on both sides through the second inclined surface, and pushes the displacement blocks 202 away from each other. At this time, the displacement blocks 202 cause the first elastic member 204 to produce elastic deformation, and convert kinetic energy into elastic potential energy, thereby reducing the damage caused by vibration or impact to the shield segment 7 and improving the protection effect.

[0050] In one embodiment, Figures 1 to 3 As shown, the second shock absorbing assembly 3 includes a second fixing rod 301, a second support member 302 and a second elastic member 303. The second fixing rod 301 is installed in the second mounting groove 102 along the second direction. One end of the second support member 302 is movably installed on the second fixing rod 301, and the other end is suitable for abutting against the shield segment 7. The second elastic member 303 is arranged in the second mounting groove 102. One end of the second elastic member 303 is connected to the second support member 302, and the other end is connected to the inner wall of the second mounting groove 102.

[0051] Specifically, in this embodiment, the height of the second support member 302 is greater than the height of the first shock-absorbing assembly 2. Since the shield segment 7 is arc-shaped, the first shock-absorbing assembly 2 supports the middle position of the bottom of the shield segment 7, and the second shock-absorbing assembly 3 supports the four corners of the bottom of the shield segment 7. Setting the height of the second support member 302 to be greater than the first shock-absorbing assembly 2 can conform to the shape of the shield segment 7, making the placement of the shield segment 7 more stable.

[0052] In this embodiment, the second fixing rod 301 is horizontally fixed in the second mounting groove 102, and the arrangement direction of the second fixing rod 301 is perpendicular to the first fixing rod 201. The second support member 302 is strip-shaped and vertically arranged in the second mounting groove 102. The bottom end of the second support member 302 is movably mounted on the second fixing rod 301. The top of the second support member 302 is provided with an arc portion, which extends in a direction away from the first shock absorbing assembly 2. The shape of the arc portion matches the shape of the bottom of the shield segment 7. When the second support member 302 moves, the arc portion can support the bottom of the shield segment 7.

[0053] In this embodiment, the second elastic member 303 is sleeved on the second fixing rod 301, one end of the second elastic member 303 is connected to the second support member 302, and the other end is connected to the inner wall of the second mounting groove 102. When the shield segment 7 is vibrated or impacted, the shield segment 7 presses the second support member 302 downward under the action of gravity, and the second support members 302 move away from each other in the second direction. At the same time, the second elastic member 303 is elastically deformed, and the kinetic energy is converted into elastic potential energy, thereby reducing the damage to the shield segment 7 caused by vibration or impact, and improving the protection effect.

[0054] In this embodiment, the second elastic member 303 is not specifically limited. For example, in this embodiment, the second elastic member 303 is a spring. In some other embodiments, the second elastic member 303 may also be a spring sheet.

[0055] The present invention movably sets the second support member 302 on the second fixing rod 301. When the shield segment 7 is vibrated or impacted, the shield segment 7 generates downward pressure on the second support member 302, pushing the relative second support members 302 away from each other. At this time, the second support member 302 causes the second elastic member 303 to produce elastic deformation, further converting the pressure into elastic potential energy, thereby reducing the damage caused by vibration or impact to the shield segment 7 and improving the protection effect.

[0056] In one embodiment, Figure 2 As shown, two second elastic members 303 are provided, and are respectively located on two sides of the second supporting member 302 .

[0057] Specifically, in this embodiment, the two second elastic members 303 are respectively sleeved on the second fixing rods 301 on both sides of the second support member 302. When the shield segment 7 is subjected to vibration or impact, the two second support members 302 move away from each other under the action of gravity, and the bottom end of the second support member 302 stretches the second elastic member 303 close to the first shock absorbing assembly 2, and squeezes the second elastic member 303 away from the first shock absorbing assembly 2, converting kinetic energy into elastic potential energy, thereby reducing the damage caused by vibration or impact to the shield segment 7 and improving the protection effect. When the vibration or impact is eliminated, the first elastic member 204 and the second elastic member 303 restore the first support member 203 and the second support member 302 to their original positions through elastic force under the action of elastic force.

[0058] The present invention arranges second elastic members 303 on both sides of the second support member 302. When vibration or impact causes the second support member 302 to be displaced, the second elastic member 303 on one side is compressed and the second elastic member 303 on the other side is pulled. While absorbing vibration or impact, the second support member 302 can also be provided with the ability to restore to its original position, thereby keeping the shield segment 7 stable and avoiding large shaking.

[0059] In one embodiment, Figures 1 to 3 As shown, the shield segment protection device also includes an anti-collision component 4, which is arranged on the support plate 1 and is located on the side of the shield segment 7.

[0060] Specifically, in this embodiment, there are two anti-collision components 4, which are respectively arranged on both sides of the shield segment 7. The arrangement of the anti-collision components 4 is parallel to the axial direction of the shield segment 7. The anti-collision components 4 are fixed on the top of the support plate 1 and are located on the side away from the second shock absorbing component 3. A certain distance is left between the anti-collision components 4 and the second support member 302 to avoid interference with the movement of the second support member 302. The height of the anti-collision components 4 is higher than the height of the shield segment 7 placed on the second shock absorbing component 3.

[0061] The present invention arranges the anti-collision assembly 4 on the side of the shield segment 7 to prevent the shield segment 7 from being damaged by lateral collision.

[0062] In one embodiment, Figures 1 to 3 As shown, the anti-collision component 4 includes a mounting plate 401, a protective plate 402 and a buffer component 403. The mounting plate 401 is arranged on the support plate 1 and is located on the side opposite to the second shock absorbing component 3. The protective plate 402 is movably arranged on the side of the mounting plate 401 away from the second shock absorbing component 3. A plurality of buffer components 403 are arranged between the mounting plate 401 and the protective plate 402.

[0063] Specifically, in this embodiment, the interior of the mounting plate 401 is a cavity, and a plurality of buffer components 403 are installed in the cavity. One end of the buffer component 403 passes through an opening on the mounting plate 401 and is connected to the protective plate 402 .

[0064] The present invention arranges a plurality of buffer components 403 between the mounting plate 401 and the protective plate 402. When a lateral impact occurs, the external force first contacts the protective plate 402, pushing the protective plate 402 toward the shield segment 7. At this time, the buffer component 403 can absorb part of the impact caused by the external force, thereby avoiding damage to the shield segment 7 caused by the impact.

[0065] In one embodiment, Figure 2 and Figure 4 As shown, the buffer assembly 403 includes a third elastic member 4031 and a first connecting member 4032 . The third elastic member 4031 is arranged between the mounting plate 401 and the protective plate 402 . One end of the first connecting member 4032 is connected to the third elastic member 4031 , and the other end is connected to the protective plate 402 .

[0066] Specifically, in this embodiment, the third elastic member 4031 is disposed in the cavity of the mounting plate 401 , one end of the first connecting member 4032 extends into the mounting to be connected to the third elastic member 4031 , and the other end is connected to the protective plate 402 .

[0067] In this embodiment, the third elastic member 4031 is not specifically limited. For example, in this embodiment, the third elastic member 4031 is a spring. In some other embodiments, the third elastic member 4031 may also be a spring sheet.

[0068] The present invention sets a third elastic member 4031 between the mounting plate 401 and the protective plate 402. When the protective plate 402 is hit laterally, the impact force generates a horizontal thrust on the protective plate 402, pushing the protective plate 402 to move toward the shield segment 7. At this time, the third elastic member 4031 is compressed by the first connecting member 4032 connected to the protective plate 402, converting the impact force into elastic force, absorbing part of the impact generated by the external force, thereby avoiding damage to the shield segment 7 caused by the impact.

[0069] In one embodiment, Figure 4 As shown, the buffer assembly 403 also includes a fixing member 4033, which is arranged between the mounting plate 401 and the protective plate 402. A mounting cavity is provided inside the fixing member 4033, an opening is provided at one end of the fixing member 4033, the third elastic member 4031 is installed in the mounting cavity, and one end of the first connecting member 4032 passes through the opening and is connected to the third elastic member 4031.

[0070] Specifically, in this embodiment, the fixing member 4033 is arranged in the cavity of the mounting plate 401, the fixing member 4033 is cylindrical, the third elastic member 4031 is arranged in the mounting cavity of the fixing member 4033, one end of the first connecting member 4032 is connected to the protective plate 402, and the other end passes through the opening and is connected to the third elastic member 4031.

[0071] The present invention installs the third elastic member 4031 in the installation cavity, and one end of the first connecting member 4032 passes through the opening to connect with the third elastic member 4031. When the protective plate 402 squeezes the first connecting member 4032, the fixing member 4033 can support the third elastic member 4031 and the first connecting member 4032, so that the movement trajectory of the first supporting member 203 remains in a straight line. At the same time, the installation cavity can make the third elastic member 4031 more stable.

[0072] In one embodiment, Figure 4 As shown, the buffer assembly 403 also includes a movable part 4034, a second connecting part 4035, a limiting part 4036 and a fourth elastic part 4037. The movable part 4034 is movably arranged in the installation cavity, the third elastic part 4031 is connected to the movable part 4034, the second connecting part 4035 passes through the opening, and one end thereof is connected to the movable part 4034, the limiting part 4036 is connected to one end of the second connecting part 4035 away from the movable part 4034, and the fourth elastic part 4037 is arranged between the fixing part 4033 and the limiting part 4036.

[0073] Specifically, in this embodiment, the outer diameter of the movable part 4034 matches the inner diameter of the installation cavity of the fixed part 4033. The movable part 4034 is movably arranged in the installation cavity and can slide along the inner wall of the installation cavity. The movable part 4034 is connected to one end of the third elastic part 4031 facing the opening. One end of the second connecting part 4035 passes through the opening and is connected to the movable part 4034, and the other end is connected to the limiting part 4036. The fourth elastic part 4037 is sleeved on the second connecting part 4035, one end of the fourth elastic part 4037 is connected to one end of the fixed part 4033 with an opening, and the other end is connected to the limiting part 4036. One end of the first connecting part 4032 is connected to the protective plate 402, and the other end is connected to the limiting part 4036.

[0074] The present invention sets a fourth elastic member 4037 between the fixing member 4033 and the limiting member 4036. When an external force hits the protective plate 402, the first connecting member 4032 pushes the movable member 4034 to compress the third elastic member 4031, and the limiting member 4036 compresses the fourth elastic member 4037. The external force is converted into an elastic force through the joint action of the third elastic member 4031 and the fourth elastic member 4037, thereby avoiding damage to the shield segment 7 caused by the impact.

[0075] In one embodiment, Figures 1 to 3As shown, the shield segment protection device also includes a placement plate 5 and a protective cover 6. The placement plate 5 is arranged on the top of the first shock absorbing assembly 2. The shield segment 7 is suitable for being placed above the placement plate 5. The protective cover 6 is suitable for being sleeved on the outside of the shield segment 7.

[0076] Specifically, in this embodiment, the placing plate 5 is arc-shaped, matching the shape of the bottom of the shield segment 7. The bottom of the placing plate 5 is connected to the top of the first support member 203. When the shield segment 7 is vibrated or impacted, the four corners of its edges will squeeze the second support member 302 downward, and the second support member 302 slides along the second fixing rod 301, and the vertical force it receives acts on the second elastic member 303 for a buffering and shock absorption. The bottom force point of the shield segment 7 will drive the placing plate 5 to move downward. The placing plate 5 drives the first support member 203 to move downward, and the first support member 203 squeezes the displacement block 202 to both sides, so that the displacement block 202 slides on the first fixing rod 201 and compresses the first elastic member 204, thereby performing secondary buffering and shock absorption. At the same time, the reverse force generated by the first elastic member 204 and the second elastic member 303 can keep the shield segment 7 stable, thereby achieving the purpose of buffering and shock absorption while firmly supporting the shield segment 7, reducing the degree of damage to the shield segment 7, and extending the service life of the shield segment 7.

[0077] In this embodiment, a protective cover 6 is provided on the outside of the shield segment 7. This embodiment does not specifically limit the protective cover 6. For example, the protective cover 6 can be made of flexible materials such as rubber. When in use, the protective cover 6 is firstly put on the surface of the shield segment 7, and then the shield segment 7 with the protective cover 6 is placed on the plate 5. The force point on the lower surface of the protective cover 6 is located on the upper surface of the placement plate 5.

[0078] The present invention arranges a protective cover 6 outside the shield segment 7 . When a plurality of shield segments 7 are stacked, the protective cover 6 reduces the wear between the shield segments 7 , thereby extending the service life of the shield segments 7 .

[0079] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A shield segment protection device, characterized in that: include: A support plate (1), the support plate (1) being provided with at least one first mounting groove (101) and at least two second mounting grooves (102) arranged opposite to each other, the first mounting groove (101) being located between the second mounting grooves (102); A first shock absorbing component (2), one end of the first shock absorbing component (2) being movably arranged in the first installation groove (101), the other end of the first shock absorbing component (2) being suitable for abutting against a shield segment (7), and the first shock absorbing component (2) moving in the first installation groove (101) along a first direction; A second shock absorbing assembly (3), at least two of the second shock absorbing assemblies (3) having one end movably arranged in the second mounting groove (102) and the other end being suitable for abutting against the shield segment (7), and the relatively arranged second shock absorbing assemblies (3) moving along the second direction.

2. The shield segment protection device according to claim 1 is characterized in that: The first shock absorbing component (2) comprises: A first fixing rod (201), the first fixing rod (201) being installed in the first installation groove (101) along a first direction; Displacement blocks (202), two displacement blocks (202) are movably mounted on the first fixing rod (201), and a first inclined surface is provided on the opposite side of the displacement blocks (202); A first support member (203), wherein one end of the first support member (203) is provided with a second inclined surface matched with the first inclined surface, the second inclined surface is movably connected to the first inclined surface, and the other end of the first support member (203) is suitable for abutting against the shield segment (7); The first elastic members (204) are connected at one end to the inner wall of the first installation groove (101) and at the other end to the sides of the displacement block (202) facing away from each other.

3. The shield segment protection device according to claim 1 or 2, characterized in that: The second shock absorbing assembly (3) comprises: A second fixing rod (301), the second fixing rod (301) being installed in the second installation groove (102) along a second direction; a second support member (302), one end of the second support member (302) being movably mounted on the second fixing rod (301), and the other end of the second support member (302) being adapted to abut against the shield segment (7); A second elastic member (303), wherein the second elastic member (303) is arranged in the second mounting groove (102), one end of the second elastic member (303) is connected to the second supporting member (302), and the other end is connected to the inner wall of the second mounting groove (102).

4. The shield segment protection device according to claim 3 is characterized in that: Two second elastic members (303) are provided, and are respectively located on two sides of the second supporting member (302).

5. The shield segment protection device according to claim 1, characterized in that: Also includes: An anti-collision component (4), wherein the anti-collision component (4) is arranged on the support plate (1), and the anti-collision component (4) is located on the side of the shield segment (7).

6. The shield segment protection device according to claim 5, characterized in that: The anti-collision component (4) comprises: a mounting plate (401), the mounting plate (401) being arranged on the supporting plate (1) and located on a side of the second shock absorbing assembly (3) that faces away from each other; a protective plate (402), the protective plate (402) being movably arranged on a side of the mounting plate (401) away from the second shock absorbing assembly (3); A buffer assembly (403), wherein a plurality of the buffer assemblies (403) are arranged between the mounting plate (401) and the protection plate (402).

7. The shield segment protection device according to claim 6, characterized in that: The buffer component (403) comprises: a third elastic member (4031), the third elastic member (4031) being arranged between the mounting plate (401) and the protective plate (402); A first connecting member (4032), one end of the first connecting member (4032) is connected to the third elastic member (4031), and the other end is connected to the protective plate (402).

8. The shield segment protection device according to claim 7, characterized in that: The buffer component (403) further includes: A fixing member (4033), wherein the fixing member (4033) is arranged between the mounting plate (401) and the protective plate (402), wherein a mounting cavity is arranged inside the fixing member (4033), an opening is arranged at one end of the fixing member (4033), the third elastic member (4031) is installed in the mounting cavity, and one end of the first connecting member (4032) passes through the opening to be connected to the third elastic member (4031).

9. The shield segment protection device according to claim 8, characterized in that: The buffer component (403) further includes: A movable member (4034), the movable member (4034) being movably disposed in the mounting cavity, and the third elastic member (4031) being connected to the movable member (4034); A second connecting member (4035), the second connecting member (4035) passes through the opening, and one end of the second connecting member (4035) is connected to the movable member (4034); a limiting member (4036), the limiting member (4036) being connected to an end of the second connecting member (4035) away from the movable member (4034); A fourth elastic member (4037), wherein the fourth elastic member (4037) is arranged between the fixing member (4033) and the limiting member (4036).

10. The shield segment protection device according to claim 1, characterized in that: Also includes: A placement plate (5), the placement plate (5) being arranged on the top of the first shock absorbing assembly (2), and the shield segment (7) being suitable for being placed above the placement plate (5); A protective sleeve (6), wherein the protective sleeve (6) is suitable for being sleeved on the outside of the shield segment (7).

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