Ultra-deep underground construction supporting system for water-rich soft soil area

Abstract

The invention is suitable for the technical field of underground construction supporting, and provides a supporting system for ultra-deep underground construction in a water-rich soft soil area, which comprises a placing plate, a supporting bottom plate is arranged on the placing plate, the right side surface of the supporting bottom plate is flush with the right side surface of the placing plate, and a supporting top plate is arranged on the left side of the supporting bottom plate. A supporting middle plate is arranged between the supporting bottom plate and the supporting top plate, the supporting bottom plate, the supporting middle plate and the supporting top plate are each provided with an adjusting through groove extending out of the surface of the front side and the surface of the rear side of the supporting bottom plate, the supporting middle plate and the supporting top plate, and a transmission shaft and an adjusting screw are rotationally connected between the inner walls of the upper side and the lower side of each adjusting through groove. The supporting bottom plate, the supporting middle plate and the supporting top plate can be assembled in a sequential stacking mode, underground construction wall formworks of different heights can be supported, the supporting bottom plate, the supporting middle plate and the supporting top plate can be assembled, the supporting bottom plate, the supporting middle plate and the supporting top plate can be assembled, and the supporting bottom plate, the supporting middle plate and the supporting top plate can be assembled. And the operation steps for supporting the underground construction wall template are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of underground construction support, and more specifically, to an ultra-deep underground construction support system for water-rich soft soil areas. Background Art

[0002] The foundation pit is a pit excavated at the foundation design location according to the base elevation and foundation plane dimensions. It is widely used in underground construction. When conducting underground construction in water-rich soft soil areas, in order to avoid the collapse of the outer soil layer, it is necessary to install a support device on the construction foundation pit wall.

[0003] However, most of the existing underground construction foundation pit wall support devices generally use laying templates for support. However, the heights of the existing underground construction foundation pit walls are not consistent, which leads to the need to vertically assemble multiple templates to ensure the support effect of the foundation pit wall when supporting the foundation pit wall. However, the operating steps of laying the supporting templates are relatively cumbersome, which affects the efficiency and speed of the underground construction foundation pit wall support. At the same time, it is also inconvenient to store more supporting templates. Summary of the invention

[0004] In view of the shortcomings of the prior art, the object of the present invention is to provide a support system for ultra-deep underground construction in water-rich soft soil areas.

[0005] To achieve the above object, the present invention provides the following technical solutions: The support system of claim 1, wherein the support bottom plate is provided on the placement plate, the right side surface of the support bottom plate is flush with the right side surface of the placement plate, the left side of the support bottom plate is provided with a support top plate, a support middle plate is provided between the support bottom plate and the support top plate, the support bottom plate, the support middle plate and the support top plate are provided with adjustment slots extending from the front and rear side surfaces thereof respectively, a transmission shaft and an adjustment screw are rotatably connected between the upper and lower inner walls of all the adjustment slots, the adjustment screw is provided with a rotation slot rotatably sleeved on the outer surface of the transmission shaft, a limiting structure is provided between the adjustment screw and the transmission shaft, a sleeve slide plate is threadedly sleeved on the outer surface of the adjustment screw and slided in the adjustment slot, the front and rear sides of the sleeve slide plate extend from the front and rear sides of the adjustment slot respectively, a rotation lifting assembly is provided between the support bottom plate and the support middle plate, the rotation lifting assembly comprises two swinging plates, the two swinging plates are respectively located at the front and rear sides of the support bottom plate and the support middle plate, the front and rear side surfaces of the sleeve slide plate are rotatably connected with the swing shaft, the other end of the swing shaft is connected to the swing plate, the sleeve slide plate A control cavity is provided on one side close to the swing plate, and one end of the swing shaft close to the sleeve slide plate rotates and penetrates into the control cavity, and one end of the swing shaft located in the control cavity is sleeved with a first gear, and the lower side of the first gear is meshedly connected with a first rack, and a trigger push rod is provided on the right side surface of the first rack, and the right end of the trigger push rod slides through the outer surface of the sleeve slide, and a first tension spring movably sleeved on the outer surface of the trigger push rod is provided between the first rack and the inner wall of the control cavity, and a top inclined plate is provided on the top of the adjusting slot, and one end of the trigger push rod located outside the sleeve slide plate is connected to the top The inclined surface of the upper and lower inclined plates contacts the inclined surface of the upper and lower inclined plates, a vertical slide groove is provided on the surface of the side of the supporting middle plate close to the swinging plate, a vertical slider sliding in the vertical slide groove is provided on the surface of the side of the swinging plate close to the vertical slide groove, a synchronization structure is provided between the vertical slider and the swinging plate, a contraction cavity is provided in the vertical slider, and a clamping structure fixed in the vertical slide groove is provided in the contraction cavity; the lower end of the transmission shaft on the supporting middle plate rotates to pass through the lower surface of the supporting middle plate, the lower end of the transmission shaft on the supporting middle plate is provided with a docking transmission structure, and the lower surface of the supporting middle plate is provided with a jacking structure.

[0006] The present invention is further configured as follows: a driving cavity located at the lower side of the adjusting through groove is opened in the supporting base plate, the lower end of the transmission shaft on the supporting base plate rotates and passes through the driving cavity, a bevel gear is arranged at the lower end of the transmission shaft, a driving motor is arranged on the placement plate, the right end of the driving motor output shaft rotates and passes through the driving cavity, a bevel gear is also arranged at the right end of the driving motor output shaft, and the two bevel gears are meshed and connected.

[0007] The present invention is further configured as follows: the synchronous structure includes a synchronous shaft, the synchronous shaft is arranged on a side surface of the vertical slider facing the swing plate, the interior of the swing plate is hollow, one end of the synchronous shaft close to the swing plate rotates and passes through the swing plate, a worm gear is sleeved on the outer surface of one end of the synchronous shaft located in the swing plate, a connecting rod is rotatably connected on the left inner wall of the swing plate, the outer surface of the connecting rod is sleeved with a worm gear meshed with the worm gear, L-shaped fixed plates are arranged on the front and rear inner walls of the sleeve slide plate on the supporting bottom plate, the right side of the swing plate is located between the vertical plate of the L-shaped fixed plate and the sleeve slide plate, a fixed shaft is arranged on the side surface of the L-shaped fixed plate close to the swing plate, the other end of the fixed shaft rotates and passes through the swing plate, a face gear is arranged on the end of the fixed shaft located in the swing plate, the face gear and the swing shaft are on the same axis, and a self-rotating gear meshed with the face gear is arranged on the right end of the connecting rod.

[0008] The present invention is further configured as follows: the clamping structure includes two clamping rods, the two clamping rods are cross-shaped in the contraction cavity in a mirror-image manner, the opposite ends of the two clamping rods slide through the vertical slide groove respectively, and a clamping groove adapted to the clamping rod is opened on the inner wall of the vertical slide groove close to the clamping rod, and the clamping groove is located at the bottom of the vertical slide groove.

[0009] The present invention is further configured as follows: one end of the two clamping rods located in the contraction cavity is hingedly connected to two second rotating plates, a contraction plate is hingedly connected between the adjacent sides of the two second rotating plates, a contraction rod is provided on the surface of the contraction plate facing the swing plate, the other end of the contraction rod slides through the surface of the vertical slider close to the swing plate, a third tension spring movably sleeved on the outer surface of the contraction rod is provided between the contraction plate and the inner wall of the contraction cavity, a right-angle block is provided on the surface of the swing plate close to the vertical slider, and the end of the contraction rod located outside the vertical slider contacts the inclined surface of the right-angle block.

[0010] The present invention is further configured as follows: the docking transmission structure includes a cross docking block, the cross docking block is arranged on the lower surface of the transmission shaft, the transmission shafts on the supporting bottom plate and the supporting middle plate respectively rotate and pass through the upper surfaces of the supporting bottom plate and the supporting middle plate, and the upper surfaces of the transmission shafts on the supporting bottom plate and the supporting middle plate are provided with cross docking grooves adapted to the cross docking block.

[0011] The present invention is further configured as follows: the limiting structure includes multiple limiting rods, and the multiple limiting rods are arranged in a circular array between the transmission shaft and the adjusting screw. A multiple limiting grooves adapted to the limiting rods are opened on the inner wall of the adjusting screw rotation groove. A built-in cavity is opened on the top of the transmission shaft. The limiting rod slides into the built-in cavity at one end close to the transmission shaft. The multiple limiting rods are hinged at one end located in the built-in cavity with a first rotating plate, and the other side of the first rotating plate is hinged with a built-in plate. A pressing rod is arranged on the upper surface of the built-in plate, and a second tension spring movably sleeved on the outer surface of the pressing rod is arranged between the upper surface of the built-in plate and the top wall of the built-in cavity. The upper end of the pressing rod slides into the cross-jointing groove.

[0012] The present invention is further configured as follows: the jacking structure includes a jacking rod, the jacking rod is arranged on the left side of the lower surface of the supporting middle plate, and a lifting cavity is opened at the bottom of the supporting middle plate near the jacking rod, the upper end of the jacking rod slides into the lifting cavity, and a third rack is arranged on the upper end of the jacking rod, and a fourth tension spring movably sleeved on the outer surface of the jacking rod is arranged between the lower surface of the third rack and the bottom wall of the lifting cavity; a second gear meshing with the third rack is rotatably connected in the lifting cavity, a one-way wheel is rotatably connected on the inner wall of the lifting cavity, a plurality of rotating seats arranged in a circular array are arranged on the outer surface of the one-way wheel, a meshing tooth meshing with the second gear teeth is rotatably connected on the rotating seat, a torsion spring is arranged between the meshing tooth and the rotating seat, and a baffle contacting with the meshing tooth is arranged on the outer surface of the rotating seat, and the baffle is located in the clockwise direction of the rotating seat.

[0013] The present invention is further configured as follows: an installation cavity is provided at the bottom of the supporting middle plate and the supporting top plate, the lifting rod is located in the installation cavity, an electric push rod is provided in the installation cavity, a locking rod is provided at the left end of the telescopic rod of the electric push rod, and a locking groove adapted to the locking rod is provided on the outer surface of the lifting rod.

[0014] The present invention is further configured as follows: a rotating lifting assembly is also provided between the supporting middle plate and the supporting top plate, the lower end of the transmission shaft on the supporting top plate rotates and passes through the lower surface of the supporting top plate, the transmission shaft on the supporting top plate is also provided with a docking transmission structure, and the lower surface of the supporting top plate is also provided with a lifting structure.

[0015] The advantages of the present invention are: First, the present invention can assemble the support bottom plate, the support middle plate and the support top plate in a stacked manner, which can cope with underground construction wall formwork supports of different heights, reducing the operating steps when supporting the underground construction wall formwork, and improving the efficiency and speed of underground construction wall support. At the same time, the support device can also be folded to reduce the storage area of ​​the device.

[0016] Secondly, the present invention is provided with a synchronous structure, so that the supporting middle plate or the supporting top plate always maintains a vertical state during the rotation process, ensuring the accuracy of the support plates at different positions when docking. At the same time, the synchronous structure is driven by a worm gear. Since the worm gear has a self-locking effect, the problem of the supporting middle plate or the supporting top plate rotating will not occur, ensuring the storage effect of the support device after storage.

[0017] Third, the docking transmission structure in the present invention adopts a plug-in transmission method, which makes the fit between the two closer, ensures the connection strength between the supporting bottom plate, the supporting middle plate and the supporting top plate, and avoids the problem of offset between the supporting bottom plate, the supporting middle plate and the supporting top plate as much as possible.

[0018] Fourthly, the present invention provides a limiting structure to avoid the adjustment screw from rotating with the transmission shaft when the sleeve slide moves to the top, thereby preventing the transmission shaft from getting stuck and ensuring the stability of the support device during operation.

[0019] Fifth, the present invention is provided with a jacking structure, which can automatically lift the supporting middle plate or the supporting top plate when the supporting device is stored, providing space for folding the supporting middle plate or the supporting top plate. Therefore, the supporting device can be folded quickly, thereby improving the storage efficiency and speed of the device. At the same time, it does not require manual operation, reducing the workload of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a main plan view of a support system for ultra-deep underground construction in water-rich soft soil areas according to the present invention; Figure 2 It is a partial top view of the sliding plate and the swinging plate of the present invention; Figure 3 for Figure 1 Enlarged view of point A in the middle; Figure 4 for Figure 1 Enlarged view of point B in the middle; Figure 5 It is a schematic diagram of the connection structure of the cross docking block and the cross docking groove of the present invention; Figure 6 is a cross-sectional view of a vertical sliding block of the present invention; Figure 7 for Figure 3 Enlarged view of point C in the middle.

[0021] In the figure: 1. Placement plate; 2. Support bottom plate; 3. Support middle plate; 4. Support top plate; 5. Adjustment slot; 6. Adjustment screw; 7. Sleeve slide plate; 8. Transmission shaft; 9. Bevel gear; 10. Drive motor; 11. Drive chamber; 12. Swing plate; 13. Swing shaft; 14. Control chamber; 15. First gear; 16. First rack; 17. Trigger push rod; 18. First tension spring; 19. Vertical slide groove; 20. Vertical slide block; 21. Synchronous shaft; 22. Worm gear; 23. Connecting rod; 24. Worm; 25. Self-rotating gear; 26. L-shaped fixing plate; 27. Fixed shaft; 28. Face gear; 29. Cross-joint groove; 30. Cross-joint block; 31. Built-in cavity; 32. Limiting rod; 33. Limiting groove; 34. Built-in plate; 35. First rotating plate; 36. Second tension spring; 37. Pressing rod; 38. Top inclined plate; 39. contraction chamber; 40. contraction rod; 41. clamping rod; 42. clamping groove; 43. contraction plate; 44. second rotating plate; 45. third tension spring; 46. right-angle block; 47. Lifting chamber; 48. Second rack; 49. Third rack; 50. Lifting rod; 51. Fourth tension spring; 52. Installation chamber; 53. Electric push rod; 54. Locking rod; 55. Second gear; 56. One-way wheel; 57. Rotating seat; 58. Meshing teeth; 59. Baffle. DETAILED DESCRIPTION

[0022] See also Figure 1-7 , the present invention provides the following technical solutions: Specifically, it refers to a support system for ultra-deep underground construction in water-rich soft soil areas, including a placing plate 1, a supporting bottom plate 2 is arranged on the placing plate 1, the right side surface of the supporting bottom plate 2 is flush with the right side surface of the placing plate 1, a supporting top plate 4 is arranged on the left side of the supporting bottom plate 2, a supporting middle plate 3 is arranged between the supporting bottom plate 2 and the supporting top plate 4, the supporting bottom plate 2, the supporting middle plate 3 and the supporting top plate 4 are all provided with adjusting grooves 5 extending from their front and rear side surfaces respectively, a transmission shaft 8 and an adjusting screw 6 are rotatably connected between the upper and lower inner walls of the adjusting groove 5, the adjusting screw 6 is provided with a rotating groove rotatably sleeved on the outer surface of the transmission shaft 8, a limiting structure is arranged between the adjusting screw 6 and the transmission shaft 8, the outer surface of the adjusting screw 6 is threadedly sleeved with a sleeve slide 7 sliding in the adjusting groove 5, the front and rear sides of the sleeve slide 7 The front and rear sides of the adjusting slot 5 are respectively extended out of the supporting base plate 2, and a driving cavity 11 is opened in the supporting base plate 2, and the lower end of the transmission shaft 8 on the supporting base plate 2 rotates and passes through the driving cavity 11, and a bevel gear 9 is arranged at the lower end of the transmission shaft 8. A driving motor 10 is arranged on the placing plate 1, and the right end of the output shaft of the driving motor 10 rotates and passes through the driving cavity 11, and a bevel gear 9 is also arranged at the right end of the output shaft of the driving motor 10. The two bevel gears 9 are meshed and connected. When in use, the driving motor 10 is started, so that the transmission shaft 8 rotates under the drive of the two bevel gears 9. Since a limiting structure is arranged between the transmission shaft 8 and the adjusting screw 6, the adjusting screw 6 will rotate synchronously with the transmission shaft 8. At this time, the sleeve slide 7 is moved upward or downward under the drive of the adjusting screw 6 thread.

[0023] A rotating lifting assembly is provided between the supporting bottom plate 2 and the supporting middle plate 3, and between the supporting middle plate 3 and the supporting top plate 4. The two sets of rotating lifting assemblies have the same structure. Therefore, the following mainly describes the rotating lifting assembly between the supporting bottom plate 2 and the supporting middle plate 3. The rotating lifting assembly includes two swinging plates 12, and the two swinging plates 12 are respectively located on the front and rear sides of the supporting bottom plate 2 and the supporting middle plate 3. The front and rear surfaces of the sleeve slide 7 on the supporting bottom plate 2 are rotatably connected with a swing shaft 13, and the other end of the swing shaft 13 is connected to the swing plate 12. A control chamber 14 is provided on the side of the sleeve slide 7 close to the swing plate 12, and the end of the swing shaft 13 close to the sleeve slide 7 is rotatably connected to the swing shaft 13. The swing shaft 13 passes through the control cavity 14, and one end of the swing shaft 13 located in the control cavity 14 is sleeved with a first gear 15, and the lower side of the first gear 15 is meshedly connected with a first rack 16, and a trigger push rod 17 is provided on the right side surface of the first rack 16, and the right end of the trigger push rod 17 slides through the outer surface of the sleeve slide 7, and a first tension spring 18 movably sleeved on the outer surface of the trigger push rod 17 is provided between the first rack 16 and the inner wall of the control cavity 14, and a top inclined plate 38 is provided on the top of the adjusting slot 5, and the end of the trigger push rod 17 located outside the sleeve slide 7 contacts with the inclined surface of the top inclined plate 38, and a vertical sliding plate is provided on the surface of one side of the support middle plate 3 close to the swing plate 12 The vertical slide block 20 that slides in the vertical slide block 19 is arranged on the side surface of the swing plate 12 close to the vertical slide block 19. When the set slide plate 7 moves upward, the swing plate 12 can synchronously drive the support middle plate 3 and the support top plate 4 to move upward. When the set slide plate 7 slides to the top, the trigger push rod 17 contacts the inclined surface of the top inclined plate 38. Therefore, the inclined surface of the top inclined plate 38 will form a thrust on the trigger push rod 17, so that the trigger push rod 17 moves into the control chamber 14. At this time, the first rack 16 meshes and drives the first gear 15 to rotate clockwise. At the same time, the first tension spring 18 is stressed and stretched, so the swing plate 12 drives the support middle plate 3 to move upward. When the sliding plate 7 slides to the top of the adjusting slot 5, the swing plate 12 rotates ninety degrees, thereby rotating the supporting middle plate 3 to the top of the supporting bottom plate 2. Similarly, when the adjusting screw 6 in the supporting middle plate 3 rotates, the supporting top plate 4 can be rotated onto the supporting middle plate 3. The above structure can be used to assemble the supporting bottom plate 2, the supporting middle plate 3 and the supporting top plate 4 in a stacked manner, which can cope with underground construction wall formwork supports of different heights, reducing the operating steps when supporting the underground construction wall formwork, and improving the efficiency and speed of the underground construction wall support. At the same time, the supporting device can also be folded to reduce the storage area of ​​the device.

[0024] A synchronization structure is provided between the vertical slider 20 and the swing plate 12, and the synchronization structure includes a synchronization shaft 21, which is provided on a side surface of the vertical slider 20 facing the swing plate 12. The inside of the swing plate 12 is hollow, and one end of the synchronization shaft 21 close to the swing plate 12 rotates and penetrates into the swing plate 12, and a worm gear 22 is sleeved on the outer surface of one end of the synchronization shaft 21 located in the swing plate 12, and a connecting rod 23 is rotatably connected to the left inner wall of the swing plate 12, and a worm 24 meshing with the worm gear 22 is sleeved on the outer surface of the connecting rod 23, and L-shaped fixed plates 26 are provided on the inner walls of the sleeve slide plate 7 on the supporting bottom plate 2 on both sides, and the right side of the swing plate 12 is located between the vertical plate of the L-shaped fixed plate 26 and the sleeve slide plate 7, and a fixed shaft 27 is provided on the side surface of the L-shaped fixed plate 26 close to the swing plate 12, and the other end of the fixed shaft 27 rotates and penetrates into the swing plate 12, and a face gear 28 is provided on the end of the fixed shaft 27 located in the swing plate 12, and the face gear 28 is connected to the swing shaft 13 The right end of the connecting rod 23 is on the same axis, and a self-rotating gear 25 meshing with the face gear 28 is provided. When the swing plate 12 rotates, since the fixed shaft 27 remains stationary, the self-rotating gear 25 rotates on the teeth of the face gear 28. The self-rotating gear 25 drives the connecting rod 23 to rotate during the rotation, so that the worm 24 drives the worm wheel 22 to rotate, so that the synchronous shaft 21 drives the vertical slider 20 and the supporting middle plate 3 to rotate. Through the above structure, when the swing plate 12 drives the supporting middle plate 3 or the supporting top plate 4 to rotate upward, the synchronous structure can drive the supporting middle plate 3 or the supporting top plate 4 to rotate in the opposite direction, so that the supporting middle plate 3 or the supporting top plate 4 always maintains a vertical state during the rotation process, ensuring the accuracy of the support plates at different positions when docking. At the same time, the synchronous structure is driven by a worm gear. Since the worm gear has a self-locking effect, there will be no problem of the supporting middle plate 3 or the supporting top plate 4 rotating, ensuring the storage effect of the support device after storage.

[0025] A contraction cavity 39 is provided in the vertical slider 20, and a clamping structure fixed in the vertical slide groove 19 is provided in the contraction cavity 39. The clamping structure includes two clamping rods 41. The two clamping rods 41 are arranged in the contraction cavity 39 in a mirror-image manner. The opposite ends of the two clamping rods 41 slide through the vertical slide groove 19 respectively. A clamping groove 42 adapted to the clamping rod 41 is provided on the inner wall of the vertical slide groove 19 on one side close to the clamping rod 41, and the clamping groove 42 is located at the bottom of the vertical slide groove 19. Therefore, when the vertical slider 20 is located at the bottom of the vertical slide groove 19, the clamping rod 41 can slide into the clamping groove 42, thereby completing the restriction of the vertical slider 20. Therefore, when the swing plate 12 drives the supporting middle plate 3 or the supporting top plate 4 to rotate upward, the vertical slider 20 will not slide upward.

[0026] One end of the two clamping rods 41 located in the contraction cavity 39 is hinged to two second rotating plates 44, and a contraction plate 43 is hinged between the adjacent sides of the two second rotating plates 44. A contraction rod 40 is provided on the surface of the contraction plate 43 facing the swing plate 12. The other end of the contraction rod 40 slides through the surface of the vertical slider 20 close to the swing plate 12. A third tension spring 45 movably sleeved on the outer surface of the contraction rod 40 is provided between the contraction plate 43 and the inner wall of the contraction cavity 39. A right-angle block 46 is provided on the surface of the swing plate 12 close to the vertical slider 20. The end of the contraction rod 40 located outside the vertical slider 20 and the right-angle block 46 are connected. The inclined surfaces are in contact. When the swing plate 12 rotates from a horizontal state to a vertical state, the inclined surface of the right-angle block 46 contacts the retraction rod 40, thereby forming a thrust on the retraction rod 40, so that the retraction rod 40 pushes the retraction plate 43 to move. Therefore, the second rotating plate 44 can pull the clamping rod 41 out of the clamping groove 42, so the vertical slider 20 cannot be restricted. When the swing plate 12 rotates to a vertical state, the supporting middle plate 3 is located directly above the supporting bottom plate 2. At this time, the supporting middle plate 3 will move downward under the action of inertia, and at the same time, the vertical slider 20 will move upward in the vertical slide groove 19 until the lower surface of the supporting middle plate 3 contacts the upper surface of the supporting bottom plate 2.

[0027] The lower ends of the transmission shafts 8 on the supporting middle plate 3 and the supporting top plate 4 rotate and penetrate the lower surfaces of the supporting middle plate 3 and the supporting top plate 4 respectively, and the lower ends of the transmission shafts 8 on the supporting middle plate 3 and the supporting top plate 4 are both provided with docking transmission structures. The following mainly describes the docking transmission structure on the supporting middle plate 3, and the docking transmission structure includes a cross docking block 30, which is arranged on the lower surface of the transmission shaft 8, and the transmission shafts 8 on the supporting bottom plate 2 and the supporting middle plate 3 rotate and penetrate the upper surfaces of the supporting bottom plate 2 and the supporting middle plate 3 respectively, and the upper surfaces of the transmission shafts 8 on the supporting bottom plate 2 and the supporting middle plate 3 are provided with cross docking The cross-jointed groove 29 adapted by the block 30, when the supporting middle plate 3 moves downward and contacts with the upper surface of the supporting bottom plate 2, the cross-jointed block 30 moves into the cross-jointed groove 29, so that the transmission shaft 8 in the supporting bottom plate 2 can drive the transmission shaft 8 in the supporting middle plate 3 to rotate, and a plug-in transmission method is adopted between the supporting middle plate 3 and the supporting bottom plate 2 as well as between the supporting middle plate 3 and the supporting top plate 4, which makes the fit between the two closer, ensures the connection strength between the supporting bottom plate 2, the supporting middle plate 3 and the supporting top plate 4, and avoids the problem of offset between the supporting bottom plate 2, the supporting middle plate 3 and the supporting top plate 4 as much as possible.

[0028] The limiting structure includes a plurality of limiting rods 32, and the plurality of limiting rods 32 are arranged in a circular array between the transmission shaft 8 and the adjusting screw 6. A plurality of limiting grooves 33 adapted to the limiting rods 32 are provided on the inner wall of the rotating groove of the adjusting screw 6. A built-in cavity 31 is provided on the top of the transmission shaft 8. The limiting rod 32 slides into the built-in cavity 31 at one end close to the transmission shaft 8. When the limiting rod 32 moves into the limiting groove 33, the adjusting screw 6 is fixed to the transmission shaft 8. Therefore, the adjusting screw 6 rotates synchronously when the transmission shaft 8 rotates. One end of the plurality of limiting rods 32 located in the built-in cavity 31 is hinged with a first rotating plate 35, and the other side of the first rotating plate 35 is hinged with a built-in plate 34. A pressing rod 37 is provided on the upper surface of the built-in plate 34, and a pressing rod 37 is provided between the upper surface of the built-in plate 34 and the top wall of the built-in cavity 31. A second tension spring 36 is movably sleeved on the outer surface of the pressing rod 37, and the upper end of the pressing rod 37 slides through the cross-jointed groove 29. When the cross-jointed block 30 moves downward into the cross-jointed groove 29, the cross-jointed block 30 contacts the pressing rod 37 and exerts downward pressure on the pressing rod 37, causing the pressing rod 37 to move downward. At this time, the first rotating plate 35 exerts a pulling force on the limiting rod 32, causing the limiting rod 32 to move into the inner wall of the transmission shaft 8. At the same time, the second tension spring 36 is stressed and stretched, so that the adjusting screw 6 in the support base plate 2 will not rotate synchronously with the transmission shaft 8. The above structure avoids the situation where the adjusting screw 6 rotates with the transmission shaft 8 when the sleeve slide plate 7 moves to the top, thereby avoiding the problem of the transmission shaft 8 being stuck as much as possible and ensuring the stability of the support device during operation.

[0029] The lower surfaces of the supporting middle plate 3 and the supporting top plate 4 are both provided with a jacking structure. The following mainly describes the jacking structure on the lower side of the supporting middle plate 3. The jacking structure includes a jacking rod 50, which is arranged on the left side of the lower surface of the supporting middle plate 3. The supporting middle plate 3 is provided with a lifting cavity 47 at the bottom near the jacking rod 50. The upper end of the jacking rod 50 slides into the lifting cavity 47. The upper end of the jacking rod 50 is provided with a third rack 49. A fourth tension spring 51 movably sleeved on the outer surface of the jacking rod 50 is provided between the lower surface of the third rack 49 and the bottom wall of the lifting cavity 47. When the fourth tension spring 51 is not affected by the tension force, the third rack 49 is located at the bottom of the lifting cavity 47. Therefore, most of the lower end of the jacking rod 50 extends out of the lower surface of the supporting middle plate 3. When the lower surface of the supporting middle plate 3 contacts the upper surface of the supporting bottom plate 2, the jacking rod 50 is squeezed into the lifting cavity 47, and the fourth tension spring 51 is in a stretched state.

[0030] A second gear 55 meshing with the third rack 49 is rotatably connected in the lifting chamber 47, a one-way wheel 56 is rotatably connected on the inner wall of the lifting chamber 47, a plurality of rotating seats 57 arranged in a circumferential array are provided on the outer surface of the one-way wheel 56, a meshing tooth 58 meshing with the teeth of the second gear 55 is rotatably connected on the rotating seat 57, a torsion spring is provided between the meshing tooth 58 and the rotating seat 57, so that the meshing tooth 58 maintains a vertical shape with the rotating seat 57 under the action of the torsion spring, a baffle 59 is provided on the outer surface of the rotating seat 57 that contacts the meshing tooth 58, and the baffle 59 is located in the clockwise direction of the rotating seat 57. When the third rack 49 moves upward, the first The second gear 55 rotates in the clockwise direction. Since the baffle plate 59 is located in the clockwise direction of the rotating seat 57, the second gear 55 cannot drive the one-way wheel 56 to rotate in the counterclockwise direction. The lower surfaces of the slide plate 7 set in the supporting middle plate 3 and the supporting top plate 4 are provided with a second rack 48. The lower side of the second rack 48 slides into the lifting chamber 47. The second rack 48 is meshed with the meshing teeth 58 on the one-way wheel 56. When the second rack 48 moves upward, since the baffle plate 59 is located in the clockwise direction of the rotating seat 57, the second rack 48 cannot drive the one-way wheel 56 to rotate in the counterclockwise direction. When the support device needs to be folded, , the transmission shaft 8 is reversed, so that the sleeve slide 7 in the support top plate 4 or the support middle plate 3 is displaced downward. When the sleeve slide 7 is displaced to the bottom, the second rack 48 slides into the lifting chamber 47. At this time, the second rack 48 can mesh with the transmission one-way wheel 56 to rotate clockwise. At this time, the meshing tooth 58 drives the second gear 55 to rotate counterclockwise, so that the second gear 55 can form a downward thrust on the third rack 49, so that the lifting rod 50 is displaced downward and a thrust is formed on the upper surface of the support middle plate 3 or the support bottom plate 2. Therefore, the support top plate 4 or the support middle plate 3 is displaced upward, so that the cross docking block 30 is displaced out of the cross The docking groove 29 has a certain inertia when the transmission shaft 8 rotates, so the mounted slide plate 7 will still move downward for a distance, so the cross docking block 30 can be completely pushed out and away from the cross docking groove 29, so that the adjusting screw 6 in the supporting middle plate 3 or the supporting bottom plate 2 can rotate with the transmission shaft 8, so that the swing plate 12 can drive the supporting top plate 4 or the supporting middle plate 3 to rotate counterclockwise, so that the supporting top plate 4 or the supporting middle plate 3 can be stored. The above structure can quickly fold the supporting device, which improves the storage efficiency and speed of the device, and does not require manual operation, reducing the workload of the staff.

[0031] An installation cavity 52 is provided at the bottom of the supporting middle plate 3 and the supporting top plate 4, and the lifting rod 50 is located in the installation cavity 52. ​​An electric push rod 53 is arranged in the installation cavity 52. ​​A locking rod 54 is arranged at the left end of the telescopic rod of the electric push rod 53. A locking groove adapted to the locking rod 54 is provided on the outer surface of the lifting rod 50. When the lifting rod 50 lifts the supporting middle plate 3 or the supporting top plate 4, the electric push rod 53 is started and pushes the locking rod 54 to move into the locking groove, thereby completing the locking of the lifting rod 50. This avoids the problem of the supporting middle plate 3 or the supporting top plate 4 sliding downward under the action of inertia after being lifted, thereby ensuring the stability and firmness of the lifting structure.

[0032] In the present invention, the diameter of the second gear 55 is smaller than the diameter of the one-way wheel 56. Therefore, when the second rack 48 moves downward a shorter distance, the second gear 55 can push the third rack 49 to move downward a longer distance, thereby ensuring that there is a rotation gap between the support bottom plate 2 and the support middle plate 3 or the support middle plate 3 and the support top plate 4.

[0033] The lower end of the lifting rod 50 is made of rubber material, so when the supporting middle plate 3 or the supporting top plate 4 is folded, the lifting rod 50 will not get stuck.

[0034] In the present invention, the number of supporting middle plates 3 can be set according to actual processing requirements, so that the supporting device can be suitable for supporting underground construction wall formwork at different depths.

[0035] The working principle of the ultra-deep underground construction support system for water-rich soft soil areas provided by the present invention is as follows: the first step is to place the device next to the underground construction wall that needs to be supported, and the support bottom plate 2 is attached to the underground construction wall, and the placement plate 1 is fixed to the ground by expansion bolts. At this time, the drive motor 10 is started, so that the transmission shaft 8 rotates under the drive of the two bevel gears 9, and the adjusting screw 6 rotates synchronously with the transmission shaft 8. At this time, the sleeve slide plate 7 is displaced upward under the drive of the adjusting screw 6 thread, and the support middle plate 3 and the support top plate 4 are displaced upward synchronously; The second step is that when the sleeve slide 7 slides to the top, the trigger push rod 17 contacts the inclined surface of the top inclined plate 38, so the inclined surface of the top inclined plate 38 will form a thrust on the trigger push rod 17, causing the trigger push rod 17 to move into the control chamber 14. At this time, the first rack 16 meshes and transmits the first gear 15 to rotate clockwise, and at the same time, the first tension spring 18 is stressed and stretched, so the swing plate 12 drives the supporting middle plate 3 to rotate upward. When the sleeve slide 7 slides to the top of the adjusting slot 5, the swing plate 12 rotates ninety degrees, so that the supporting middle plate 3 is rotated to the top of the supporting bottom plate 2. Similarly, when the adjusting screw 6 in the supporting middle plate 3 rotates, the supporting top plate 4 can be rotated onto the supporting middle plate 3; Step 3: When the swing plate 12 rotates, since the fixed shaft 27 remains stationary, the self-rotating gear 25 rotates on the teeth of the face gear 28. The self-rotating gear 25 drives the connecting rod 23 to rotate during the rotation, so that the worm 24 drives the worm wheel 22 to rotate. Therefore, the synchronous shaft 21 drives the vertical slider 20 and the supporting middle plate 3 or the supporting top plate 4 to rotate, so that the supporting middle plate 3 or the supporting top plate 4 always remains vertical. Step 4: When the swing plate 12 rotates from a horizontal state to a vertical state, the inclined surface of the right-angle block 46 contacts the retracting rod 40, so that a thrust can be formed on the retracting rod 40, so that the retracting rod 40 pushes the retracting plate 43 to move, so that the second rotating plate 44 can pull the clamping rod 41 to move out of the clamping groove 42, so that the vertical slider 20 cannot be restricted. After the swing plate 12 rotates to a vertical state, the supporting middle plate 3 is located directly above the supporting bottom plate 2. At this time, the supporting middle plate 3 will move downward under the action of inertia, and at the same time, the vertical slider 20 will move upward in the vertical slide groove 19 until the lower surface of the supporting middle plate 3 contacts the upper surface of the supporting bottom plate 2. Step 5. When the cross-joint block 30 moves downward into the cross-joint groove 29, the cross-joint block 30 contacts the pressing rod 37 and exerts downward pressure on the pressing rod 37, causing the pressing rod 37 to move downward. At this time, the first rotating plate 35 exerts a pulling force on the limiting rod 32, causing the limiting rod 32 to move into the inner wall of the transmission shaft 8. At the same time, the second tension spring 36 is stressed and stretched, so the adjusting screw 6 in the support bottom plate 2 will not rotate synchronously with the transmission shaft 8. At this time, the sleeve slide 7 in the support middle plate 3 can drive the support top plate 4 to move upward and rotate to the top of the support middle plate 3.

Claims

1. A support system for ultra-deep underground construction in water-rich soft soil areas, comprising a placement plate (1), characterized in that: The placement plate (1) is provided with a support bottom plate (2), the right side surface of the support bottom plate (2) is flush with the right side surface of the placement plate (1), a support top plate (4) is provided on the left side of the support bottom plate (2), a support middle plate (3) is provided between the support bottom plate (2) and the support top plate (4), and the support bottom plate (2), the support middle plate (3) and the support top plate (4) are all provided with adjustment slots (5) extending from the front and rear side surfaces thereof respectively, and the upper and lower side inner walls of all the adjustment slots (5) are rotated. A transmission shaft (8) and an adjusting screw (6) are movably connected, a rotating groove rotatably sleeved on the outer surface of the transmission shaft (8) is provided on the adjusting screw (6), a limiting structure is provided between the adjusting screw (6) and the transmission shaft (8), a sleeve slide (7) is provided on the outer surface of the adjusting screw (6) and slides in the adjusting slot (5), and the front and rear sides of the sleeve slide (7) extend out of the front and rear sides of the adjusting slot (5) respectively, and a rotating lifting component is provided between the supporting bottom plate (2) and the supporting middle plate (3); The rotating lifting assembly comprises two swing plates (12), the two swing plates (12) are respectively located at the front and rear sides of the supporting bottom plate (2) and the supporting middle plate (3), the front and rear surfaces of the sleeve slide plate (7) are both rotatably connected with swing shafts (13), the other end of the swing shaft (13) is connected to the swing plate (12), a control cavity (14) is provided on the side of the sleeve slide plate (7) close to the swing plate (12), one end of the swing shaft (13) close to the sleeve slide plate (7) is rotatably penetrated into the control cavity (14), one end of the swing shaft (13) located in the control cavity (14) is sleeved with a first gear (15), the lower side of the first gear (15) is meshingly connected with a first rack (16), a trigger push rod (17) is provided on the right side surface of the first rack (16), the right end of the trigger push rod (17) slides out of the sleeve slide plate (7) and penetrates into the control cavity (14). The outer surface of the trigger push rod (17) is provided between the first rack (16) and the inner wall of the control chamber (14), and a first tension spring (18) is movably sleeved on the outer surface of the trigger push rod (17). A top inclined plate (38) is provided at the top of the adjusting slot (5). One end of the trigger push rod (17) located outside the sleeve slide plate (7) contacts the inclined surface of the top inclined plate (38). A vertical slide groove (19) is provided on the side surface of the supporting middle plate (3) close to the swing plate (12). A vertical slider (20) sliding in the vertical slide groove (19) is provided on the side surface of the swing plate (12) close to the vertical slide groove (19). A synchronization structure is provided between the vertical slider (20) and the swing plate (12). A contraction chamber (39) is provided in the vertical slider (20). A clamping structure fixed in the vertical slide groove (19) is provided in the contraction chamber (39); The lower end of the transmission shaft (8) on the supporting middle plate (3) rotates and passes through the lower surface of the supporting middle plate (3); the lower end of the transmission shaft (8) on the supporting middle plate (3) is provided with a docking transmission structure, and the lower surface of the supporting middle plate (3) is provided with a jacking structure.

2. The support system for ultra-deep underground construction in water-rich soft soil areas according to claim 1, characterized in that: The support base plate (2) is provided with a driving cavity (11) located at the lower side of the adjustment slot (5); the lower end of the transmission shaft (8) on the support base plate (2) rotates and passes through the driving cavity (11); the lower end of the transmission shaft (8) is provided with a bevel gear (9); a driving motor (10) is provided on the placement plate (1); the right end of the output shaft of the driving motor (10) rotates and passes through the driving cavity (11); the right end of the output shaft of the driving motor (10) is also provided with a bevel gear (9); and the two bevel gears (9) are meshingly connected.

3. The support system for ultra-deep underground construction in water-rich soft soil areas according to claim 2 is characterized by: The synchronization structure comprises a synchronization shaft (21), the synchronization shaft (21) being arranged on a side surface of the vertical slider (20) facing the swing plate (12), the swing plate (12) being hollow inside, the synchronization shaft (21) having one end close to the swing plate (12) being rotatably penetrated into the swing plate (12), a worm gear (22) being sleeved on the outer surface of one end of the synchronization shaft (21) located inside the swing plate (12), a connecting rod (23) being rotatably connected on the left inner wall of the swing plate (12), a worm gear (24) being meshed with the worm gear (22) being sleeved on the outer surface of the connecting rod (23), and a sliding plate (7) being sleeved on the support base plate (2) ) are provided with L-shaped fixed plates (26) on both the front and rear inner walls, the right side of the swing plate (12) is located between the vertical plate of the L-shaped fixed plate (26) and the sleeve slide plate (7), a fixed shaft (27) is provided on the surface of one side of the L-shaped fixed plate (26) close to the swing plate (12), the other end of the fixed shaft (27) rotates and penetrates into the swing plate (12), a face gear (28) is provided at one end of the fixed shaft (27) located in the swing plate (12), the face gear (28) and the swing shaft (13) are on the same axis, and a self-rotating gear (25) meshingly connected with the face gear (28) is provided at the right end of the connecting rod (23).

4. The support system for ultra-deep underground construction in water-rich soft soil areas according to claim 3 is characterized by: The clamping structure comprises two clamping rods (41), the two clamping rods (41) are arranged in a cross shape in a mirror image in the contraction cavity (39), and the opposite ends of the two clamping rods (41) are respectively slid into the vertical slide groove (19), and a clamping groove (42) adapted to the clamping rod (41) is provided on the inner wall of the vertical slide groove (19) on one side close to the clamping rod (41), and the clamping groove (42) is located at the bottom of the vertical slide groove (19).

5. The support system for ultra-deep underground construction in water-rich soft soil areas according to claim 4 is characterized by: One end of the two clamping rods (41) located in the contraction cavity (39) is hinged to two second rotating plates (44), and a contraction plate (43) is hinged between the adjacent sides of the two second rotating plates (44). A contraction rod (40) is provided on the surface of the contraction plate (43) facing the swing plate (12), and the other end of the contraction rod (40) slides through the surface of the vertical slider (20) close to the swing plate (12). A third tension spring (45) movably sleeved on the outer surface of the contraction rod (40) is provided between the contraction plate (43) and the inner wall of the contraction cavity (39), and a right-angle block (46) is provided on the surface of the swing plate (12) close to the vertical slider (20), and the end of the contraction rod (40) located outside the vertical slider (20) contacts the inclined surface of the right-angle block (46).

6. The support system for ultra-deep underground construction in water-rich soft soil areas according to claim 5, characterized in that: The docking transmission structure comprises a cross docking block (30), the cross docking block (30) is arranged on the lower surface of the transmission shaft (8), the transmission shaft (8) on the supporting bottom plate (2) and the supporting middle plate (3) rotates to pass through the upper surface of the supporting bottom plate (2) and the supporting middle plate (3), respectively, and the upper surface of the transmission shaft (8) on the supporting bottom plate (2) and the supporting middle plate (3) is provided with a cross docking groove (29) adapted to the cross docking block (30).

7. The support system for ultra-deep underground construction in water-rich soft soil areas according to claim 6, characterized in that: The limiting structure comprises a plurality of limiting rods (32), which are arranged between the transmission shaft (8) and the adjusting screw (6) in a circular array manner, and a plurality of limiting grooves (33) adapted to the limiting rods (32) are provided on the inner wall of the rotating groove of the adjusting screw (6), and a built-in cavity (31) is provided on the top of the transmission shaft (8), and one end of the limiting rod (32) close to the transmission shaft (8) slides into the built-in cavity (31), and one end of the plurality of limiting rods (32) located in the built-in cavity (31) is hingedly connected to a first rotating plate (35), and the other side of the first rotating plate (35) is hingedly connected to a built-in plate (34), and a pressing rod (37) is provided on the upper surface of the built-in plate (34), and a second tension spring (36) movably sleeved on the outer surface of the pressing rod (37) is provided between the upper surface of the built-in plate (34) and the top wall of the built-in cavity (31), and the upper end of the pressing rod (37) slides into the cross-jointing groove (29).

8. The support system for ultra-deep underground construction in water-rich soft soil areas according to claim 7, characterized in that: The lifting structure comprises a lifting rod (50), the lifting rod (50) being arranged on the left side of the lower surface of the supporting middle plate (3), a lifting cavity (47) being provided at the bottom of the supporting middle plate (3) near the lifting rod (50), the upper end of the lifting rod (50) slidingly passing through the lifting cavity (47), a third rack (49) being arranged at the upper end of the lifting rod (50), a fourth tension spring (51) movably sleeved on the outer surface of the lifting rod (50) being arranged between the lower surface of the third rack (49) and the bottom wall of the lifting cavity (47), a third rack (49) being rotatably connected to the lifting cavity (47) and the third rack (49) being arranged in the lifting cavity (47), A second gear (55) meshed with the rack (49) is provided on the inner wall of the lifting chamber (47) and is rotatably connected with a one-way wheel (56). The outer surface of the one-way wheel (56) is provided with a plurality of rotating seats (57) arranged in a circumferential array. The rotating seat (57) is rotatably connected with meshing teeth (58) meshed with the teeth of the second gear (55). A torsion spring is provided between the meshing teeth (58) and the rotating seat (57). The outer surface of the rotating seat (57) is provided with a baffle (59) in contact with the meshing teeth (58). The baffle (59) is located in the clockwise direction of the rotating seat (57).

9. The support system for ultra-deep underground construction in water-rich soft soil areas according to claim 8, characterized in that: The bottom of the supporting middle plate (3) is provided with an installation cavity (52), the lifting rod (50) is located in the installation cavity (52), an electric push rod (53) is arranged in the installation cavity (52), a locking rod (54) is arranged at the left end of the telescopic rod of the electric push rod (53), and a locking groove adapted to the locking rod (54) is arranged on the outer surface of the lifting rod (50).

10. The support system for ultra-deep underground construction in water-rich soft soil areas according to claim 9, characterized in that: A rotating lifting assembly is also provided between the supporting middle plate (3) and the supporting top plate (4); the lower end of the transmission shaft (8) on the supporting top plate (4) rotates and passes through the lower surface of the supporting top plate (4); the transmission shaft (8) on the supporting top plate (4) is also provided with a docking transmission structure; and the lower surface of the supporting top plate (4) is also provided with a lifting structure.

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