Auxiliary construction platform for tunnel construction

Abstract

The present invention provides an auxiliary construction platform for tunnel construction, which belongs to the field of tunnel construction and includes a base, two fixed frames are symmetrically arranged on both sides of the top of the base, and a lifting chute is opened in the middle of the opposite sides of the two fixed frames, a screw rod is rotatably connected in the lifting chute, a lifting motor connected to the screw rod is arranged on the top of the fixed frame, a side plate is slidably connected in the lifting chute, the side plate is threadedly connected to the screw rod, a construction platform is fixed between the side plates on both sides, and an inner cavity is arranged inside the construction platform. The present invention has the following beneficial effects: through the design of a rotating adjustment mechanism, the horizontal angles of the two construction corridors can be adjusted according to the position of the construction surface at the top of the tunnel, so that the construction corridor can be matched with different construction positions, and after the adjustment is completed, the support ring plate and the construction platform are locked together by a limiting component to form a stable connection structure, thereby improving the safety of the construction corridor.

Description

Technical Field

[0001] The invention discloses an auxiliary construction platform for tunnel construction, belonging to the field of tunnel construction. Background Art

[0002] Auxiliary construction platforms for tunnel construction generally refer to work platforms set up in construction tunnels to facilitate workers to work safely and efficiently. These platforms are usually fixed on the wall or roof of the construction tunnel to provide a reliable working platform for workers to work.

[0003] Usually these auxiliary construction platforms are customized according to different needs to meet the specific construction difficulty and ensure the quality and safety of the construction work, so as to improve work efficiency and ensure the safety of workers. In short, the auxiliary construction platform for tunnel construction is a very important engineering facility and plays a vital role in tunnel construction.

[0004] However, the existing construction platform structure is relatively simple, and it is not convenient to adjust the height and horizontal angle of the platform according to actual needs. As a result, the construction platform cannot be rotated according to changes in the construction surface, and personnel need to leave the construction platform and move the construction platform again before continuing the construction process. This type of construction platform is not convenient for construction in tunnels and has low practical performance. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention aims to provide an auxiliary construction platform for tunnel construction.

[0006] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0007] An auxiliary construction platform for tunnel construction comprises a base, two fixed frames are symmetrically arranged on both sides of the top of the base, a lifting slide groove is opened in the middle of the opposite sides of the two fixed frames, a screw rod is rotatably connected in the lifting slide groove, a lifting motor connected to the screw rod is arranged on the top of the fixed frame, a side plate is slidably connected in the lifting slide groove, the side plate is threadedly connected to the screw rod, a construction platform is fixed between the side plates on both sides, an inner cavity is arranged inside the construction platform, a rotation adjustment mechanism is arranged in the inner cavity, the output end of the rotation adjustment mechanism passes through to the top of the construction platform and is connected and fixed to a supporting ring plate, a side baffle plate is arranged on the top of the supporting ring plate, inlet and outlet are opened on both sides of the side baffle plate, and a construction gallery matching the inlet and outlet is fixed on the outer surface of the side baffle plate.

[0008] Furthermore, the rotation adjustment mechanism includes a rotation component, a clamping component and a limiting component. The rotation component includes a driving motor fixed at the bottom center of the inner cavity. The top output end of the driving motor is connected to a plug-in rod, and an external threaded column is vertically slidably connected to the plug-in rod. The top of the external threaded column penetrates to the top of the construction platform and is connected and fixed to the docking plate. A docking groove matching the docking plate is provided at the top of the construction platform, and a through hole penetrating into the inner cavity is provided at the bottom center of the docking groove, and the through hole matches the external threaded column. A rotating ring is rotatably connected to the inner top of the inner cavity, and an internal threaded hole matching the external threaded column is provided in the middle of the rotating ring. An external gear ring is provided on the outside of the rotating ring. The clamping component is located inside the rotating ring and clamped with the inner cavity and the external threaded column. A top annular plate is rotatably connected to the side edge of the inner top of the inner cavity, and an internal gear ring is provided on the inner side of the top annular plate. A transmission gear is meshed between the internal gear ring and the external gear ring. The transmission gear is rotatably connected to the inner top of the inner cavity. A connecting plate is fixed to the top of the top annular plate, and the top of the connecting plate penetrates to the top of the construction platform and is connected and fixed to the support ring plate.

[0009] Furthermore, a plug-in groove matching with the plug-in rod is provided at the bottom center of the external threaded column, and an arc-shaped adjustment hole matching with the connecting plate is provided at the inner top of the inner cavity.

[0010] Furthermore, the clamping assembly includes sliding holes symmetrically opened on the rotating ring, the sliding holes pass through the inner and outer sides of the rotating ring, a sliding groove is opened at the top of the sliding hole, a vertical hole is opened on one side of the top of the sliding groove and passes through the outer surface of the top of the rotating ring, and an annular cavity is also opened inside the rotating ring, which is connected to the sliding hole.

[0011] Furthermore, an annular groove is provided at the bottom of the annular cavity, an annular slider is slidably connected in the annular groove, a rotating ring is fixed on the top of the annular slider, a plurality of internal inclined arc plates and a plurality of external inclined arc plates are fixed on the inner and outer sides of the rotating ring respectively, the internal inclined arc plates correspond to the external inclined arc plates, an arc-shaped rack is provided on one side of the inner part of the rotating ring, a clamping motor is fixed on one side of the inner bottom of the annular groove, a driving gear is connected to the top output end of the clamping motor, and the driving gear is meshed with the arc-shaped rack.

[0012] Furthermore, a sliding member is slidably connected inside the sliding hole, an extrusion groove is provided at the bottom of the sliding member, the extrusion groove is adapted to the internal inclined arc plate and the external inclined arc plate, a sliding block is fixed on the top of the sliding member, the sliding block is slidably connected in the sliding groove, a vertical inclined panel is vertically slidably connected in the vertical hole, and a vertical clamping block is provided on the top of the vertical inclined panel.

[0013] Furthermore, vertical sliders are fixed on both sides of the outer surface of the vertical inclined panel, a vertical slide groove cooperating with the vertical slider is opened on the inner wall of the vertical hole, and the inner top of the inner cavity and the outer surface of the external threaded column are respectively provided with a plurality of vertical clamping grooves and horizontal clamping grooves cooperating with the vertical clamping block and the sliding member.

[0014] Furthermore, the limiting component includes a plurality of trapezoidal inclined panels that are laterally slidably connected to the bottom of the inner cavity, and a plurality of inclined annular plates that are vertically slidably connected to the side walls of the inner cavity. The inclined surfaces of the inclined annular plates are squeezed together with the inclined surfaces of the trapezoidal inclined panels. A plurality of limit blocks are evenly arranged on the top of the inclined annular plates, and a plurality of limit grooves that cooperate with the limit blocks are opened at the bottom of the top annular plate.

[0015] Furthermore, the construction platform is rotatably connected to the rotating ring, the top annular plate and the supporting annular plate through arc-shaped sliding grooves and arc-shaped sliding blocks.

[0016] Furthermore, both the plug-in slot and the plug-in rod are rectangular column structures, and the side of the base is connected and fixed to the mounting surface through an anchor rod.

[0017] Beneficial effects of the present invention:

[0018] The present invention adopts the design of a rotating adjustment mechanism, so that the horizontal angles of the two construction corridors can be adjusted according to the position of the tunnel top construction surface, thereby matching the construction corridors with different construction positions. After the adjustment is completed, the support ring plate and the construction platform are locked together through a limiting component to form a stable connection structure, thereby improving the safety of the construction corridor.

[0019] The present invention adopts the design of a rotating component, and drives the plug-in rod to rotate through a driving motor. The plug-in rod squeezes the plug-in groove to drive the external threaded column to rotate. At this time, the sliding piece on the rotating ring is clamped and fixed with the transverse clamping groove on the outer surface of the external threaded column to fix the rotating ring and the external threaded column together, and the rotation of the external threaded column will drive the rotating ring to rotate synchronously. The rotation of the rotating ring drives the transmission gear to rotate through the external gear ring, and the transmission gear drives the inner gear ring and the top annular plate to rotate synchronously. The top annular plate drives the support ring plate to rotate through the connecting plate, and the support ring plate drives the side baffles and two construction corridors to rotate synchronously, so as to adjust the horizontal angle of the construction corridor.

[0020] The present invention adopts the design of the clamping assembly. When it is necessary to control the external threaded column to descend, the clamping motor drives the active gear to rotate. The rotation of the active gear will drive the rotating ring to rotate clockwise through the arc rack. The clockwise rotation of the rotating ring will drive the external inclined arc plate and the internal inclined arc plate to rotate. In this rotation process, the internal inclined arc plate gradually disengages from the extrusion groove at the bottom of the sliding member, and the external inclined arc plate gradually rotates and squeezes into the extrusion groove at the bottom of the sliding member, and then the sliding member is pushed to move linearly through the extrusion between the external inclined arc plate and the inner wall of the extrusion groove, so that the end of the sliding member disengages from the horizontal clamping groove on the outer surface of the external threaded column and enters the sliding hole. In this movement process, the sliding member drives the top sliding block to move, and the movement of the sliding block will squeeze the vertical inclined plate. The vertical inclined plate rises vertically and drives the vertical clamping block to be clamped into the vertical clamping groove at the top of the inner cavity, thereby realizing the release of the clamping relationship between the rotating ring and the external threaded column and fixing the rotating ring and the inner cavity together.

[0021] The present invention limits the design of the components, and after the clamping relationship between the rotating ring and the externally threaded column is released, the driving motor is started, and the driving motor drives the plug-in rod and the externally threaded column to rotate. Because the rotating ring is clamped and fixed with the inner cavity, the rotating ring and the internal internal threaded hole at this time act as a nut. At this time, the rotation of the externally threaded column will move vertically downward like a bolt. When the externally threaded column moves vertically downward, the top will drive the docking plate to gradually snap into the docking groove. When the externally threaded column moves vertically downward, the bottom will squeeze the end inclined surface of the trapezoidal inclined plate. The trapezoidal inclined plate will move horizontally and linearly due to the squeezing. The movement of the trapezoidal inclined plate will squeeze the inclined surface annular plate. The inclined surface annular plate will move vertically and drive the limit block to snap into the limit groove at the bottom of the top annular plate, thereby limiting the top annular plate, thereby realizing the clamping and fixation of the support ring plate and the construction platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is a schematic diagram of the overall structure of an auxiliary construction platform for tunnel construction according to the present invention;

[0024] Figure 2 It is a partial structural schematic diagram of an auxiliary construction platform for tunnel construction of the present invention;

[0025] Figure 3 This is a schematic diagram of the construction platform structure of an auxiliary construction platform for tunnel construction according to the present invention;

[0026] Figure 4The internal structure of the construction platform of the auxiliary construction platform for tunnel construction of the present invention is schematically shown. Figure 1 ;

[0027] Figure 5 This is a schematic diagram of the structure of point A of an auxiliary construction platform for tunnel construction according to the present invention;

[0028] Figure 6 The internal structure of the construction platform of the auxiliary construction platform for tunnel construction of the present invention is schematically shown. Figure 2 ;

[0029] Figure 7 This is a schematic diagram of the structure of point B of an auxiliary construction platform for tunnel construction according to the present invention;

[0030] Figure 8 This is a schematic diagram of the top annular plate structure of an auxiliary construction platform for tunnel construction according to the present invention;

[0031] Fig. 9 This is a schematic diagram of the connection structure between a rotating ring and an outer gear ring of an auxiliary construction platform for tunnel construction of the present invention;

[0032] Fig.10 It is a partial structural schematic diagram of a clamping assembly of an auxiliary construction platform for tunnel construction according to the present invention;

[0033] Fig.11 This is a schematic diagram of the rotating ring structure of an auxiliary construction platform for tunnel construction according to the present invention;

[0034] Fig.12 The present invention is a schematic diagram of the structure of a sliding member of an auxiliary construction platform for tunnel construction.

[0035] In the figure, 1, construction platform; 2, arc-shaped adjustment hole; 3, docking groove; 4, through hole; 5, external thread column; 6, docking plate; 7, plug-in groove; 8, driving motor; 9, plug-in rod; 10, horizontal clamping groove; 11, rotating ring; 12, sliding hole; 13, sliding groove; 14, vertical hole; 15, sliding part; 16, sliding block; 17, extrusion groove; 18, vertical inclined panel; 19, vertical slider; 20, vertical clamping block; 21, vertical clamping groove; 22, arc-shaped slide groove; 23, arc-shaped slider; 24, internal thread hole; 25, external Gear ring; 26. Transmission gear; 27. Top annular plate; 28. Connecting plate; 29. ​​Supporting ring plate; 30. Side baffle plate; 31. Inlet and outlet; 32. Construction corridor; 33. Limiting groove; 34. Inclined annular plate; 35. Limiting block; 36. Trapezoidal inclined plate; 37. External inclined arc plate; 38. Internal inclined arc plate; 39. Arc rack; 40. Snap-on motor; 41. Driving gear; 42. Side plate; 43. Fixed frame; 44. Lifting motor; 45. Base; 46. Anchor rod; 47. Rotating ring; 48. Inner gear ring. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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 ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figure 1-Figure 12 The present invention provides a technical solution for an auxiliary construction platform for tunnel construction, including a base 45, two fixing frames 43 are symmetrically arranged on both sides of the top of the base 45, and a lifting slide groove is opened in the middle of the opposite sides of the two fixing frames 43, and a screw rod is rotatably connected in the lifting slide groove. A lifting motor 44 connected to the screw rod is arranged on the top of the fixing frame 43, and a side plate 42 is slidably connected in the lifting slide groove. The side plate 42 is threadedly connected to the screw rod, and a construction platform 1 is fixed between the side plates 42 on both sides. An inner cavity is arranged inside the construction platform 1, and a rotation adjustment mechanism is arranged in the inner cavity. The output end of the rotation adjustment mechanism passes through the top of the construction platform 1 and is connected and fixed to the support ring plate 29. The support ring plate 29 A side baffle plate 30 is provided on the top, and an inlet and outlet 31 are provided on both sides of the side baffle plate 30. A construction corridor 32 matching the inlet and outlet 31 is fixed on the outer surface of the side baffle plate 30. Both the plug-in slot 7 and the plug-in rod 9 are rectangular column structures, and the side of the base 45 is connected and fixed to the installation surface through an anchor rod 46; through the design of the rotating adjustment mechanism, the horizontal angle of the two construction corridors 32 can be adjusted according to the position of the construction surface at the top of the tunnel, so that the construction corridor 32 can be matched with different construction positions. After the adjustment is completed, the support ring plate 29 is locked together with the construction platform 1 through the limiting component to form a stable connection structure, thereby improving the safety of the construction corridor 32.

[0038] See also Figure 3-Figure 12The rotation adjustment mechanism includes a rotation component, a clamping component and a limiting component. The rotation component includes a driving motor 8 fixed at the bottom center of the inner cavity. The top output end of the driving motor 8 is connected to a plug rod 9. The plug rod 9 is vertically slidably connected to an external threaded column 5. The top of the external threaded column 5 penetrates to the top of the construction platform 1 and is connected and fixed to a docking plate 6. A docking groove 3 matching with the docking plate 6 is opened on the top of the construction platform 1. A through hole 4 that penetrates into the inner cavity is opened at the bottom center of the docking groove 3. The through hole 4 is connected to the external threaded column 5. The inner top of the inner cavity is rotatably connected with a rotating ring 11, and an internal threaded hole 24 matching with the external threaded column 5 is opened in the middle of the rotating ring 11. An external toothed ring 25 is provided on the outside of the rotating ring 11. The clamping assembly is located inside the rotating ring 11 and is clamped with the inner cavity and the external threaded column 5. The inner top side of the inner cavity is rotatably connected with a top annular plate 27, and an internal toothed ring 48 is provided on the inner side of the top annular plate 27. A transmission gear 26 is meshed between the internal toothed ring 48 and the external toothed ring 25. The transmission gear 26 is rotatably connected to the inner top of the inner cavity. A connecting plate 28 is fixed to the top of the annular plate 27, and the top of the connecting plate 28 penetrates to the top of the construction platform 1 and is connected and fixed to the supporting ring plate 29. A plug-in groove 7 matching with the plug-in rod 9 is provided at the bottom center of the external thread column 5, and an arc-shaped adjustment hole 2 matching with the connecting plate 28 is provided at the inner top of the inner cavity; through the design of the rotating component, the plug-in rod 9 is driven to rotate by the driving motor 8, and the plug-in rod 9 squeezes the plug-in groove 7 to drive the external thread column 5 to rotate. At this time, the sliding member 15 on the rotating ring 11 is in contact with the outer surface of the external thread column 5 The transverse snap-in groove 10 on the surface snaps in and fixes the rotating ring 11 and the external threaded column 5 together, and the rotation of the external threaded column 5 will drive the rotating ring 11 to rotate synchronously. The rotation of the rotating ring 11 drives the transmission gear 26 to rotate through the external gear ring 25, and the transmission gear 26 drives the internal gear ring 48 and the top annular plate 27 to rotate synchronously. The top annular plate 27 drives the support ring plate 29 to rotate through the connecting plate 28, and the support ring plate 29 drives the side baffles 30 and the two construction corridors 32 to rotate synchronously, thereby realizing the adjustment of the horizontal angle of the construction corridor 32.

[0039] See also Figure 4-Figure 12The clamping assembly includes a sliding hole 12 symmetrically opened on the rotating ring 11, the sliding hole 12 passes through the inner and outer sides of the rotating ring 11, a sliding groove 13 is opened at the top of the sliding hole 12, and a vertical hole 14 is opened on one side of the top of the sliding groove 13 and passes through the outer surface of the top of the rotating ring 11. The rotating ring 11 is also provided with an annular cavity, which is communicated with the sliding hole 12, and an annular groove is opened at the bottom of the annular cavity. An annular slider is slidably connected in the annular groove, and a rotating ring 47 is fixed on the top of the annular slider. A plurality of internal bevel arc plates 38 and a plurality of external bevel arc plates 37 are fixed on the inner and outer sides of the rotating ring 47, respectively. The internal bevel arc plates 38 correspond to the external bevel arc plates 37, and the rotating ring 47 An arc-shaped rack 39 is provided on one side of the interior, a clamping motor 40 is fixed on one side of the inner bottom of the annular slide, a driving gear 41 is connected to the top output end of the clamping motor 40, and the driving gear 41 is meshed with the arc-shaped rack 39. A sliding member 15 is slidably connected inside the sliding hole 12, and an extrusion groove 17 is provided at the bottom of the sliding member 15. The extrusion groove 17 is adapted to the internal inclined arc plate 38 and the external inclined arc plate 37. A sliding block 16 is fixed on the top of the sliding member 15, and the sliding block 16 is slidably connected in the sliding groove 13. A vertical inclined panel 18 is vertically slidably connected in the vertical hole 14, and a vertical clamping block 20 is provided on the top of the vertical inclined panel 18. Vertical sliders are fixed on both sides of the outer surface of the vertical inclined panel 18. 19, a vertical slide groove matched with the vertical slider 19 is provided on the inner wall of the vertical hole 14, and a plurality of vertical clamping grooves 21 and horizontal clamping grooves 10 matched with the vertical clamping block 20 and the sliding member 15 are respectively provided on the inner top of the inner cavity and the outer surface of the external threaded column 5; through the design of the clamping assembly, when it is necessary to control the external threaded column 5 to descend, at this time, the clamping motor 40 drives the active gear 41 to rotate, and the rotation of the active gear 41 will drive the rotating ring 47 to rotate clockwise through the arc rack 39, and the clockwise rotation of the rotating ring 47 will drive the external bevel arc plate 37 and the internal bevel arc plate 38 to rotate, and during this rotation process, the internal bevel arc plate 38 gradually separates from the extrusion groove 17 at the bottom of the sliding member 15, The external inclined arc plate 37 gradually rotates and squeezes into the extrusion groove 17 at the bottom of the sliding member 15, and then pushes the sliding member 15 to move in a straight line through the extrusion between the external inclined arc plate 37 and the inner wall of the extrusion groove 17, so that the end of the sliding member 15 disengages from the horizontal clamping groove 10 on the outer surface of the external threaded column 5 and enters the sliding hole 12. During this movement, the sliding member 15 will drive the sliding block 16 at the top to move, and the movement of the sliding block 16 will squeeze the vertical inclined panel 18. The vertical inclined panel 18 rises vertically and drives the vertical clamping block 20 to clamp into the vertical clamping groove 21 at the top of the inner cavity, thereby realizing the release of the clamping relationship between the rotating ring 11 and the external threaded column 5 and fixing the rotating ring 11 and the inner cavity together.

[0040] See also Figure 4 and Figure 6The limiting component includes a plurality of trapezoidal inclined panels 36 that are laterally slidably connected to the bottom of the inner cavity, and a plurality of inclined annular plates 34 that are vertically slidably connected to the side walls of the inner cavity. The inclined surfaces of the inclined annular plates 34 are squeezed together with the inclined surfaces of the trapezoidal inclined panels 36. A plurality of limiting blocks 35 are evenly arranged on the top of the inclined annular plates 34, and a plurality of limiting grooves 33 that cooperate with the limiting blocks 35 are opened at the bottom of the top annular plate 27. Through the design of the limiting component, after releasing the clamping relationship between the rotating ring 11 and the external threaded column 5, the driving motor 8 is started, and the driving motor 8 drives the plug-in rod 9 and the external threaded column 5 to rotate. Because the rotating ring 11 is clamped and fixed with the inner cavity, the rotating The ring 11 and the internal threaded hole 24 act like a nut. At this time, the rotation of the external threaded column 5 will move vertically downward like a bolt. When the external threaded column 5 moves vertically downward, the top will drive the docking plate 6 to gradually get stuck in the docking groove 3. When the external threaded column 5 moves vertically downward, the bottom will squeeze the end slope of the trapezoidal inclined plate 36. The trapezoidal inclined plate 36 will move horizontally and linearly due to the squeezing. The movement of the trapezoidal inclined plate 36 will squeeze the inclined surface annular plate 34. The inclined surface annular plate 34 will move vertically and drive the limit block 35 to get stuck in the limit groove 33 at the bottom of the top annular plate 27, thereby limiting the top annular plate 27, thereby realizing the clamping and fixing of the support ring plate 29 to the construction platform 1.

[0041] See also Figure 4 and Figure 6 The construction platform 1 is rotatably connected with the rotating ring 11, the top annular plate 27 and the supporting ring plate 29 through the arc-shaped slide groove 22 and the arc-shaped slider 23; through the design of the arc-shaped slide groove 22 and the arc-shaped slider 23, the rotating ring 11, the top annular plate 27 and the supporting ring plate 29 can rotate stably.

[0042] When in use, the lifting motor 44 can be used to drive the screw to rotate, and the screw can rotate to drive the side plate 42, and the side plate 42 can drive the construction platform 1 to move vertically, thereby adjusting the height of the construction platform 1. After the height adjustment is completed, the user can adjust the horizontal angle of the two construction corridors 32 according to the position of the tunnel top construction surface by rotating the component, so that the construction corridor 32 can match different construction positions. After the adjustment is completed, the support ring plate 29 and the construction platform 1 are locked together by the limiting component to form a stable connection structure, thereby improving the safety of the construction corridor 32;

[0043] The process of the rotating assembly adjusting the horizontal angle of the two construction corridors 32 is as follows: the plug-in rod 9 is driven to rotate by the driving motor 8, and the plug-in rod 9 squeezes the plug-in groove 7 to drive the external threaded column 5 to rotate. At this time, the sliding member 15 on the rotating ring 11 is clamped and fixed with the transverse clamping groove 10 on the outer surface of the external threaded column 5 to fix the rotating ring 11 and the external threaded column 5 together, and the rotation of the external threaded column 5 will drive the rotating ring 11 to rotate synchronously, and the rotation of the rotating ring 11 drives the transmission gear 26 to rotate through the external gear ring 25, and the transmission gear 26 drives the internal gear ring 48 and the top annular plate 27 to rotate synchronously, and the top annular plate 27 drives the support ring plate 29 to rotate through the connecting plate 28, and the support ring plate 29 drives the side baffle 30 and the two construction corridors 32 to rotate synchronously, so as to adjust the horizontal angle of the construction corridor 32;

[0044] The process of limiting the assembly to lock the support ring plate 29 with the construction platform 1 is as follows: the clamping motor 40 drives the active gear 41 to rotate, and the rotation of the active gear 41 will drive the rotating ring 47 to rotate clockwise through the arc rack 39. The clockwise rotation of the rotating ring 47 will drive the external inclined arc plate 37 and the internal inclined arc plate 38 to rotate. During this rotation process, the internal inclined arc plate 38 gradually disengages from the extrusion groove 17 at the bottom of the sliding member 15, and the external inclined arc plate 37 gradually rotates and squeezes into the extrusion groove 17 at the bottom of the sliding member 15, and then the sliding member 15 is pushed to move linearly through the extrusion between the external inclined arc plate 37 and the inner wall of the extrusion groove 17, so that the end of the sliding member 15 disengages from the horizontal clamping groove 10 on the outer surface of the external threaded column 5 and enters the sliding hole 12. During this movement process, the sliding member 15 will drive the top sliding block 16 to move, and the movement of the sliding block 16 will squeeze the vertical inclined panel 18. The vertical inclined panel 18 rises vertically and drives the vertical clamping block 20 to snap into the inner cavity. The vertical clamping groove 21 at the inner top is used to release the clamping relationship between the rotating ring 11 and the external threaded column 5 and fix the rotating ring 11 to the inner cavity. At this time, the driving motor 8 is started, and the driving motor 8 drives the plug-in rod 9 and the external threaded column 5 to rotate. Because the rotating ring 11 is clamped and fixed with the inner cavity, the rotating ring 11 and the internal threaded hole 24 at this time act as a nut. At this time, the rotation of the external threaded column 5 will move vertically downward like a bolt. When the external threaded column 5 moves vertically downward, the top will drive the docking plate 6 to gradually snap into the docking groove 3. When the external threaded column 5 moves vertically downward, the bottom will squeeze the end inclined surface of the trapezoidal inclined plate 36. The trapezoidal inclined plate 36 will move horizontally and linearly under compression. The movement of the trapezoidal inclined plate 36 will squeeze the inclined surface annular plate 34. The inclined surface annular plate 34 will move vertically and drive the limit block 35 to snap into the limit groove 33 at the bottom of the top annular plate 27, thereby limiting the top annular plate 27, thereby realizing the clamping and fixing of the support ring plate 29 to the construction platform 1.

[0045] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An auxiliary construction platform for tunnel construction, characterized in that: The utility model comprises a base (45), two fixing frames (43) are symmetrically arranged on both sides of the top of the base (45), a lifting slot is opened in the middle of the opposite side of the two fixing frames (43), a screw rod is rotatably connected in the lifting slot, a lifting motor (44) connected to the screw rod is arranged on the top of the fixing frame (43), a side plate (42) is slidably connected in the lifting slot, the side plate (42) is threadedly connected to the screw rod, a construction platform (1) is fixed between the side plates (42) on both sides, an inner cavity is arranged inside the construction platform (1), a rotation adjustment mechanism is arranged in the inner cavity, an output end of the rotation adjustment mechanism passes through the top of the construction platform (1) and is connected and fixed to the support ring plate (29), a side baffle plate (30) is arranged on the top of the support ring plate (29), and the side baffle plate (30) is Both sides are provided with an inlet and outlet (31), and a construction gallery (32) matching with the inlet and outlet (31) is fixed on the outer surface of the side baffle (30). The rotation adjustment mechanism comprises a rotation assembly, a clamping assembly and a limiting assembly. The rotation assembly comprises a driving motor (8) fixed at the bottom center of the inner cavity, and the top output end of the driving motor (8) is connected to a plug rod (9). An external thread column (5) is vertically slidably connected to the plug rod (9). The top end of the external thread column (5) passes through the top of the construction platform (1) and is connected and fixed to a docking plate (6). A docking groove (3) matching with the docking plate (6) is provided on the top of the construction platform (1), and a through hole (4) that passes through the inner cavity is provided at the bottom center of the docking groove (3). The through hole (4) and the external thread column ( 5), the inner top of the inner cavity is rotatably connected to a rotating ring (11), the middle of the rotating ring (11) is provided with an internal threaded hole (24) matching with the external threaded column (5), the outer side of the rotating ring (11) is provided with an external toothed ring (25), the clamping assembly is located inside the rotating ring (11) and is clamped with the inner cavity and the external threaded column (5), the inner top side of the inner cavity is rotatably connected to a top annular plate (27), the inner side of the top annular plate (27) is provided with an internal toothed ring (48), a transmission gear (26) is meshed between the internal toothed ring (48) and the external toothed ring (25), the transmission gear (26) is rotatably connected to the inner top of the inner cavity, the top of the top annular plate (27) is fixed with a connecting plate (28), the top of the connecting plate (28) passes through to the construction platform (1) The top is connected and fixed with the support ring plate (29), the bottom center of the external threaded column (5) is provided with a plug-in groove (7) that matches the plug-in rod (9), the inner top of the inner cavity is provided with an arc-shaped adjustment hole (2) that matches the connecting plate (28), the clamping assembly includes a sliding hole (12) symmetrically opened on the rotating ring (11), the sliding hole (12) passes through the inner and outer sides of the rotating ring (11), the top of the sliding hole (12) is provided with a sliding groove (13), one side of the top of the sliding groove (13) is provided with a vertical hole (14) that passes through the outer surface of the top of the rotating ring (11), the rotating ring (11) is also provided with an annular cavity, the annular cavity is communicated with the sliding hole (12), the bottom of the annular cavity is provided with an annular slide groove, and an annular slider is slidably connected in the annular slide groove.A rotating ring (47) is fixed on the top of the annular slider, and a plurality of internal inclined arc plates (38) and a plurality of external inclined arc plates (37) are fixed on the inner and outer sides of the rotating ring (47), respectively. The internal inclined arc plates (38) correspond to the external inclined arc plates (37). An arc-shaped rack (39) is provided on one side of the interior of the rotating ring (47). A clamping motor (40) is fixed on one side of the inner bottom of the annular slide groove, and a driving gear (41) is connected to the top output end of the clamping motor (40). ), the driving gear (41) is meshed with the arc-shaped rack (39), a sliding member (15) is slidably connected inside the sliding hole (12), an extrusion groove (17) is provided at the bottom of the sliding member (15), the extrusion groove (17) is adapted to the internal inclined arc plate (38) and the external inclined arc plate (37), a sliding block (16) is fixed on the top of the sliding member (15), the sliding block (16) is slidably connected in the sliding groove (13), and a vertical hole (14) is vertically slidably connected to the vertical hole (14). The vertical inclined panel (18) is provided with a vertical clamping block (20) at the top of the vertical inclined panel (18), vertical sliders (19) are fixed on both sides of the outer surface of the vertical inclined panel (18), and a vertical slide groove matching with the vertical slider (19) is provided on the inner wall of the vertical hole (14), and a plurality of vertical clamping grooves (21) and horizontal clamping grooves (10) matching with the vertical clamping block (20) and the sliding member (15) are respectively provided on the inner top of the inner cavity and the outer surface of the external threaded column (5). ), the limiting assembly includes a plurality of trapezoidal inclined panels (36) slidably connected to the bottom of the inner cavity in a transverse direction, a plurality of inclined annular plates (34) slidably connected to the side wall of the inner cavity in a vertical direction, the inclined surfaces of the inclined annular plates (34) are pressed together with the inclined surfaces of the trapezoidal inclined panels (36), a plurality of limiting blocks (35) are evenly arranged on the top of the inclined annular plates (34), and a plurality of limiting grooves (33) matching with the limiting blocks (35) are opened at the bottom of the top annular plate (27). , 2. An auxiliary construction platform for tunnel construction according to claim 1, characterized in that: The construction platform (1) is rotatably connected to the rotating ring (11), the top annular plate (27) and the supporting annular plate (29) via an arc-shaped sliding groove (22) and an arc-shaped sliding block (23).

3. An auxiliary construction platform for tunnel construction according to claim 2, characterized in that: Both the plug-in slot (7) and the plug-in rod (9) are rectangular column structures, and the side edge of the base (45) is connected and fixed to the mounting surface via an anchor rod (46).

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