Anti-sliding device for rail transit retaining wall

Abstract

The utility model relates to the technical field of rail engineering, and discloses an anti-sliding device for a rail transit retaining wall, which comprises a retaining wall, a fixing support is movably mounted on the front side of the retaining wall, a rolling shaft is rotatably mounted on the inner side of the fixing support, and an adjusting support is fixedly sleeved on the outer surface of the rolling shaft. Extension rods are fixedly installed in the extension protruding blocks on the two sides of the adjusting support and extend to the outer sides of the extension shafts on the two sides of the adjusting support. A second rotating block is rotated through external force, when the second rotating block rotates, a lead screw is driven to start to rotate, when the lead screw rotates, a rolling shaft is driven to start to rotate, and when the rolling shaft starts to rotate, an adjusting support is driven to start to be adjusted downwards. The retaining wall is tightly meshed with surrounding soil, equivalently, the friction area and the friction coefficient between the retaining wall and the ground are increased, and the horizontal slippage resisting capacity of the retaining wall can be remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of track engineering, more specifically, the utility model relates to an anti-sliding device for track traffic retaining wall. BACKGROUND

[0002] With the acceleration of urbanization, track traffic has become the key infrastructure to solve urban congestion and improve travel efficiency. In the construction of track traffic, retaining walls play a crucial role. Whether it is the foundation pit support of underground lines or the fluctuation area along the ground track, retaining walls shoulder the heavy responsibility of stabilizing soil and ensuring the safety of track structure. On the one hand, it resists the lateral pressure caused by the weight of surrounding soil, groundwater and frequent train operation, preventing soil landslide and collapse from damaging track facilities. On the other hand, in the city space where every inch of land is valuable, retaining walls can optimize land use and reduce unnecessary land occupation through reasonable planning, laying a solid foundation for the smooth development of track traffic in complex urban environment.

[0003] The existing anti-sliding device for track traffic retaining wall has the problem of not tightly engaging with the surrounding soil during use, resulting in insufficient friction area and friction coefficient between the retaining wall and the ground, which cannot significantly improve the ability of the retaining wall to resist horizontal sliding. It cannot ensure that the retaining wall remains stable under the action of external forces such as train operation vibration and soil pressure. At the same time, it cannot adaptively adjust the support force on the retaining wall, so it needs to be improved and optimized. SUMMARY

[0004] In order to overcome the shortcomings of the prior art, the utility model provides an anti-sliding device for track traffic retaining wall, which has the advantage of adaptively adjusting the support force on the retaining wall.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: an anti-sliding device for track traffic retaining wall, comprising a retaining wall, a fixed support movably mounted on the front of the retaining wall, a roller shaft rotatably mounted on the inner side of the fixed support, an adjusting support fixedly sleeved on the outer surface of the roller shaft, an extension rod fixedly installed on the front of both sides of the adjusting support, a connecting steel rod fixedly connected between the two extension rods, a plurality of fixed sleeve frames fixedly sleeved on the outer surface of the connecting steel rod, a first threaded rod threadedly sleeved in the inside of the extension lugs on both sides of the fixed sleeve frame, a first rotating block fixedly installed on the top of the first threaded rod, a first conical lug fixedly installed at the bottom end of the first threaded rod, a lead screw fixedly installed at the end of the roller shaft and penetrating through the fixed support, a second rotating block fixedly installed at the end of the lead screw, and a threaded connection mechanism fixedly installed on the left and right sides of the fixed support.

[0006] As a preferred technical scheme of the utility model, the outer surface of the retaining wall is provided with screw grooves which are linearly arranged on the outer surface of the retaining wall, the screw grooves are internally threadedly sleeved with third threaded rods, the one side end of the third threaded rod is fixedly installed with a fourth rotating block, the other side end of the third threaded rod is fixedly installed with a fixed rod, and the end of the fixed rod is fixedly installed with a second conical protrusion.

[0007] As a preferred technical scheme of the utility model, the end of the roller is fixedly installed with a screw rod, and the outer surface of the screw rod in contact with the fixed support is threadedly connected.

[0008] As a preferred technical scheme of the utility model, the screw connection mechanism comprises extension blocks fixedly installed on the left and right sides of the fixed support, the extension blocks are internally threadedly sleeved with second threaded rods which extend into the retaining wall, and the front surface of the second threaded rod is fixedly installed with a third rotating block.

[0009] As a preferred technical scheme of the utility model, the retaining wall has a T shape, and the inner side of the horizontal protrusion of the retaining wall has a circular arc shape.

[0010] As a preferred technical scheme of the utility model, the left and right sides of the retaining wall are fixedly installed with channel steels which have a concave shape.

[0011] As a preferred technical scheme of the utility model, the outer surface of the roller is fixedly sleeved with an adjusting support which has a C shape.

[0012] Compared with the prior art, the utility model has the beneficial effects as follows:

[0013] 1、the utility model discloses a second rotating block is rotated by external force, when the second rotating block is rotated, will drive the screw rod to start rotating, when the screw rod is rotated, will drive the roller to start rotating, when the roller starts rotating, will drive the adjusting support to start adjusting downward, when the adjusting support starts adjusting downward, will drive the extension rod to adjust downward, then the extension rod will drive the connecting steel pole to adjust downward, so that the connecting steel pole drives a plurality of fixed sleeve frames to move to the appropriate position, at this time, the first threaded rod is driven by rotating the first rotating block and then rotating the first conical protrusion to the inside of the ground, so that a plurality of first threaded rods are rotated to the inside of the ground, compared with the traditional device, the threaded rod is drilled into the ground, and is tightly engaged with the surrounding soil, which is equivalent to increasing the friction area and friction coefficient between the retaining wall and the ground, can significantly improve the ability of the retaining wall to resist horizontal sliding, ensure that the retaining wall can still remain stable under the action of external forces such as vibration and soil pressure generated by train operation, and guarantee the safe operation of rail transit, and a plurality of threaded rods can also prevent the support force on the retaining wall from being adaptively adjusted when the foundation soil is uneven.

[0014] 2、The utility model discloses a fixed rod drives second conical lug to rotate and push in the accumulated soil through the thread groove, when the third threaded rod contacts with the reserved thread groove, at this time, the third threaded rod is rotated through the rotation of fourth rotation block, then because the third threaded rod is connected with the thread groove threadedly, thereby has the reverse direction self -locking effect, makes the risk of falling off is avoided, compared with traditional device, can support retaining wall in different positions, can effectively disperse load, and the threaded rod can adjust the support force of retaining wall adaptively according to the stress condition of different parts. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the front perspective appearance structure schematic diagram of the utility model;

[0016] Figure 2 It is retaining wall structure schematic diagram of the utility model;

[0017] Figure 3 It is the adjusting support structure schematic diagram of the utility model;

[0018] Figure 4 It is the connecting steel pole structure schematic diagram of the utility model;

[0019] Figure 5 It is the utility model Figure 4 It is the enlarged view of A place in the middle.

[0020] In the drawing: 1, retaining wall;2, fixed support;3, roller;4, adjusting support;5, extension rod;6, connecting steel pole;7, fixed sleeve frame;8, first threaded rod;9, first rotation block;10, first conical lug;11, screw;12, second rotation block;13, extension block;14, second threaded rod;15, third rotation block;16, thread groove;17, third threaded rod;18, fourth rotation block;19, fixed rod;20, second conical lug;21, channel steel. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the utility model.

[0022] As Figures 1 to 5The utility model provides a device for resisting sliding of rail transit retaining wall, including retaining wall 1, the front movable installation of retaining wall 1 has fixed support 2, the inside rotation of fixed support 2 is installed with roll axle 3, the outer surface fixed sleeve of roll axle 3 is connected with adjusting support 4, adjusting support 4 both sides front fixed mounting has extension rod 5, two extension rods 5 between fixed connection have connecting steel pole 6, the outer surface fixed sleeve of connecting steel pole 6 has fixed sleeve frame 7 and the outer surface fixed sleeve of connecting steel pole 6 has multiple fixed sleeve frame 7, the inside screw thread sleeve of fixed sleeve frame 7 both sides extension lug has first threaded rod 8, first threaded rod 8 top fixed mounting has first rotation block 9, the bottom fixed mounting of first threaded rod 8 has first conical lug 10, the end fixed mounting of roll axle 3 has lead screw 11 and lead screw 11 passes through fixed support 2, the end fixed mounting of lead screw 11 has second rotation block 12, the left and right sides fixed mounting of fixed support 2 has screw thread connection mechanism.

[0023] When making retaining wall 1 place in the position required by rail transit, staff turns second rotation block 12 by external force, when second rotation block 12 rotates, will drive lead screw 11 to start rotating, when lead screw 11 rotates, will drive roll axle 3 to start rotating, when roll axle 3 starts rotating, will drive adjusting support 4 to start adjusting downward, when adjusting support 4 starts adjusting downward, will drive extension rod 5 to adjust downward, then extension rod 5 will drive connecting steel pole 6 to adjust downward, so that connecting steel pole 6 drives multiple fixed sleeve frame 7 to move to the appropriate position, at this time, by rotating first rotation block 9 and then driving first threaded rod 8, make first conical lug 10 rotate to the inside of ground, make multiple first threaded rod 8 all rotate to the inside of ground.

[0024] When making retaining wall 1 place in the position required by rail transit, staff turns second rotation block 12 by external force, when second rotation block 12 rotates, will drive lead screw 11 to start rotating, when lead screw 11 rotates, will drive roll axle 3 to start rotating, when roll axle 3 starts rotating, will drive adjusting support 4 to start adjusting downward, when adjusting support 4 starts adjusting downward, will drive extension rod 5 to adjust downward, then extension rod 5 will drive connecting steel pole 6 to adjust downward, so that connecting steel pole 6 drives multiple fixed sleeve frame 7 to move to the appropriate position, at this time, by rotating first rotation block 9 and then driving first threaded rod 8, make first conical lug 10 rotate to the inside of ground, make multiple first threaded rod 8 all rotate to the inside of ground.Compared with traditional device, threaded rod drills into ground and tightly engages with surrounding soil, which is equivalent to increasing the friction area and friction coefficient between retaining wall and ground, can significantly improve the ability of retaining wall to resist horizontal sliding, ensure that retaining wall can still remain stable under the action of vibration, soil pressure and other external forces generated by train operation, protect the safe operation of rail transit, and multiple threaded rods can also prevent unevenness in foundation soil and adaptively adjust the support force on the retaining wall.

[0025] The outer surface of the retaining wall 1 is provided with a threaded groove 16, and the threaded groove 16 is linearly arrayed on the outer surface of the retaining wall 1. The threaded groove 16 is internally threaded and sleeved with a third threaded rod 17. The third threaded rod 17 is fixedly installed with a fourth rotating block 18 at one side end. The third threaded rod 17 is fixedly installed with a fixed rod 19 at the other side end. The end of the fixed rod 19 is fixedly installed with a second conical protrusion 20.

[0026] When the soil is accumulated on the back of the retaining wall 1, the fixed rod 19 drives the second conical protrusion 20 to rotate and advance into the accumulated soil through the reserved threaded groove 16. When the third threaded rod 17 contacts the reserved threaded groove 16, the third threaded rod 17 is rotated by rotating the fourth rotating block 18. Then, due to the threaded connection between the third threaded rod 17 and the threaded groove 16, the reverse self-locking effect is achieved, thereby avoiding the risk of falling off.

[0027] When the soil is accumulated on the back of the retaining wall 1, the fixed rod 19 drives the second conical protrusion 20 to rotate and advance into the accumulated soil through the reserved threaded groove 16. When the third threaded rod 17 contacts the reserved threaded groove 16, the third threaded rod 17 is rotated by rotating the fourth rotating block 18. Then, due to the threaded connection between the third threaded rod 17 and the threaded groove 16, the reverse self-locking effect is achieved, thereby avoiding the risk of falling off. Compared with the traditional device, the device can support the retaining wall at different positions, effectively dispersing the load. At the same time, the threaded rod can adaptively adjust the supporting force of the retaining wall according to the stress condition of different parts.

[0028] The end of the roller 3 is fixedly installed with a lead screw 11, and the outer surface of the lead screw 11 is threadedly connected with the fixed support 2.

[0029] The outer surface of the lead screw 11 is threadedly connected with the fixed support 2. When the lead screw 11 is threadedly connected with the fixed support 2, the reverse self-locking effect is achieved, thereby avoiding the possibility of adjusting the angle of rotation and increasing the stability.

[0030] The left and right sides of the fixed support 2 are fixedly installed with extension blocks 13. The extension blocks 13 are internally threaded and sleeved with second threaded rods 14, and the second threaded rods 14 extend into the retaining wall 1. The front surface of the second threaded rod 14 is fixedly installed with a third rotating block 15.

[0031] The extension blocks 13 are internally threaded and sleeved with the second threaded rods 14, and the second threaded rods 14 extend into the retaining wall 1. This can facilitate the disassembly of the entire fixed support 2, thereby enabling quick replacement of parts damaged for a long time.

[0032] The retaining wall 1 is in the shape of T, and the inner side of the horizontal protrusion of the retaining wall 1 is in the shape of a circular arc.

[0033] The T-shaped shape of the retaining wall 1 and the arc shape of the inner side of the lateral protrusion of the retaining wall 1 can effectively press the lateral protrusion of the retaining wall 1 when the earth pressure is on the back of the retaining wall 1, so that the gravity of the earth itself exerts a downward pressure on the retaining wall 1, thereby increasing the fixing effect.

[0034] The left and right sides of the retaining wall 1 are fixedly provided with groove steels 21, and the groove steels 21 are concave.

[0035] The concave shape of the groove steel 21 facilitates the quick position calibration of the retaining wall 1, thereby realizing quick installation.

[0036] The outer surface of the roller 3 is fixedly sleeved with an adjusting support 4, and the adjusting support 4 is C-shaped.

[0037] The C-shaped adjusting support 4 can effectively drive the extension rod 5 to realize flexible adjustment, thereby providing support for the adjustment of the extension rod 5.

[0038] Working principle and use process of the utility model:

[0039] When the retaining wall 1 is placed at the required position of the rail transit, the staff rotates the second rotating block 12 by external force, the second rotating block 12 drives the lead screw 11 to start rotating when the second rotating block 12 rotates, the roller 3 starts rotating when the lead screw 11 rotates, the adjusting support 4 starts adjusting downward when the roller 3 starts rotating, the extension rod 5 adjusts downward when the adjusting support 4 starts adjusting downward, and then the extension rod 5 drives the connecting steel rod 6 to adjust downward, so that the connecting steel rod 6 drives the plurality of fixed sleeve frames 7 to move to the appropriate position, at this time, the first rotating block 9 is rotated to drive the first threaded rod 8, so that the first tapered protrusion 10 rotates inward to the ground, and the plurality of first threaded rods 8 rotate inward to the ground.

[0040] When the earth is accumulated on the back of the retaining wall 1, the fixed rod 19 drives the second tapered protrusion 20 to rotate and advance into the accumulated earth through the reserved threaded groove 16, when the third threaded rod 17 contacts with the reserved threaded groove 16, at this time, the fourth rotating block 18 is rotated to drive the third threaded rod 17 to rotate, and then the third threaded rod 17 is screwed with the threaded groove 16, thereby having a reverse self-locking effect, so as to avoid the risk of falling off.

[0041] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0042] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. Anti-sliding device for retaining walls for rail transport, comprising a retaining wall (1), characterized in that: The front of the retaining wall (1) is movably provided with a fixed support (2), the inner side of the fixed support (2) is rotatably provided with a roller shaft (3), the outer surface of the roller shaft (3) is fixedly sleeved with an adjusting support (4), the front of the two sides of the adjusting support (4) is fixedly provided with an extension rod (5), the two extension rods (5) are fixedly connected with a connecting steel rod (6), the outer surface of the connecting steel rod (6) is fixedly sleeved with a fixed sleeve frame (7), and the outer surface of the connecting steel rod (6) is fixedly sleeved with a plurality of fixed sleeve frames (7), the inside of the two sides of the fixed sleeve frame (7) is threadedly sleeved with a first threaded rod (8), the top of the first threaded rod (8) is fixedly provided with a first rotating block (9), the bottom end of the first threaded rod (8) is fixedly provided with a first tapered block (10), the end of the roller shaft (3) is fixedly provided with a lead screw (11), and the lead screw (11) penetrates the fixed support (2), the end of the lead screw (11) is fixedly provided with a second rotating block (12), and the left and right sides of the fixed support (2) are fixedly provided with a threaded connection mechanism.

2. The anti-sliding device for rail transit retaining wall according to claim 1, characterized in that: The outer surface of the retaining wall (1) is provided with a threaded groove (16), and the threaded groove (16) is linearly arrayed on the outer surface of the retaining wall (1), the inside of the threaded groove (16) is threadedly sleeved with a third threaded rod (17), one side end of the third threaded rod (17) is fixedly provided with a fourth rotating block (18), the other side end of the third threaded rod (17) is fixedly provided with a fixed rod (19), and the end of the fixed rod (19) is fixedly provided with a second tapered block (20).

3. The anti-sliding device for rail transit retaining wall according to claim 1, characterized in that: The end of the roller shaft (3) is fixedly provided with a lead screw (11), and the outer surface of the lead screw (11) in contact with the fixed support (2) is threadedly connected.

4. The anti-displacement device for rail transit retaining wall according to claim 1, characterized in that: The threaded connection mechanism comprises extension blocks (13) fixedly provided on the left and right sides of the fixed support (2), the inside of the extension block (13) is threadedly sleeved with a second threaded rod (14), and the second threaded rod (14) extends into the inside of the retaining wall (1), and the front of the second threaded rod (14) is fixedly provided with a third rotating block (15).

5. The anti-displacement device for rail transit retaining wall according to claim 1, characterized in that: The retaining wall (1) is in a T shape, and the inner side of the horizontal block of the retaining wall (1) is in a circular arc shape.

6. The anti-sliding device for rail transit retaining wall according to claim 1, characterized in that: The left and right sides of the retaining wall (1) are fixedly provided with channel steels (21), and the channel steels (21) are in a concave shape.

7. The anti-sliding device for rail transit retaining wall according to claim 1, characterized in that: The adjusting support (4) is in a C shape.

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