CN212225271U

CN212225271U - Tunnel engineering top bearing structure

Info

Publication number: CN212225271U
Application number: CN202020414506.8U
Authority: CN
Inventors: 林玉萍
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-26
Filing date: 2020-03-26
Publication date: 2020-12-25
Anticipated expiration: 2030-03-26

Abstract

The utility model discloses a tunnel engineering top bearing structure belongs to bearing structure technical field, including the lift pillar, the upper end of lift pillar is fixed with first bracing piece and second bracing piece respectively, the upper end of first bracing piece is fixed with first backup pad, the upper end of second bracing piece is fixed with the second backup pad, the utility model discloses a motor rotates and drives the rotation of drive bevel gear, and drive bevel gear drives the threaded rod rotation that driven bevel gear is located, and the support column side of threaded rod upper end is spacing by spacing slider, makes the vertical direction of support column go up and down, and the lift is stable, supports stably, need not to add extra equipment; the utility model discloses a fixed a plurality of screw thread stiffeners between first backup pad and first bracing piece and between second backup pad and the second bracing piece, rotatory screw rod makes it screw out from the loop bar, and during first screw thread seat and the screw thread seat were twisted into fixed thread groove, improved support intensity, avoided backup pad deformation.

Description

Tunnel engineering top bearing structure

Technical Field

The utility model belongs to the technical field of bearing structure, concretely relates to tunnel engineering top bearing structure.

Background

Tunnels are engineering structures buried in the ground and are a form of human use of underground space. The tunnel can be divided into a traffic tunnel, a hydraulic tunnel, a municipal tunnel and a mine tunnel.

In 1970, the international economic cooperation and development organization held a tunnel conference which integrates various factors, and the definition of the tunnel is as follows: "a cavity with a cross section area larger than 2 square meters is built under the ground by any method according to a specified shape and size in a certain application. "

The structure of the tunnel comprises two parts, namely a main building and accessory equipment. The main building consists of a tunnel body and a tunnel door, the auxiliary equipment comprises a car-avoiding tunnel, fire-fighting equipment, emergency communication and water-proof and drainage equipment, and the long tunnel is also provided with special ventilation and lighting equipment.

The prior art has the following problems: the adjustment that carries out the height through the cylinder is flexible in current tunnel engineering top bearing structure substructure reaches the purpose of supporting, needs additionally to increase the air pump, increases the cost, and gas leakage easily causes the shrink, influences the supporting effect, all does not strengthen support piece between current backup pad and the bracing piece, easily causes backup pad bending deformation, has the potential safety hazard.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a tunnel engineering top bearing structure has simple structure, and the lift supports stably, non-deformable's characteristics.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a tunnel engineering top bearing structure, includes the lift pillar, the upper end of lift pillar is fixed with first bracing piece and second bracing piece respectively, the upper end of first bracing piece is fixed with first backup pad, the upper end of second bracing piece is fixed with the second backup pad, the lift pillar includes support column, sleeve, limit slider, threaded rod, driven bevel gear, quick-witted case, motor and initiative bevel gear including the support column, wherein, telescopic bottom is fixed with the threaded rod, the nested support column that is fixed with in surface of threaded rod, the lower extreme of support column is provided with limit slider, the surface of threaded rod is close to lower extreme position and is provided with driven bevel gear, telescopic side is close to lower extreme position and is provided with quick-witted case, the inside of machine case is fixed with the motor, the output of motor is fixed with initiative bevel gear.

Preferably, the lower ends of the first supporting plate and the second supporting plate and the upper ends of the first supporting rod and the second supporting rod are provided with fixing thread grooves, and two thread reinforcing rods are fixed between the fixing thread grooves corresponding to the upper ends and the lower ends.

Preferably, the thread reinforcing rod comprises a first thread seat, a loop bar, a second thread seat and a screw, wherein the screw is fixed inside the loop bar, the first thread seat is fixed at the upper end of the screw, and the second thread seat is fixed at the lower end of the loop bar.

Preferably, the support column is of a cylindrical structure, the sleeve is of a cuboid structure, and the limiting sliding block is connected with the inner wall of the sleeve in a sliding mode.

Preferably, the inside of support column is provided with the thread groove that corresponds with the threaded rod, the bearing is rotated between threaded rod and the sleeve and is connected.

Preferably, the screw rod is in threaded rotary connection with the sleeve rod, the thread direction of the first thread seat is consistent with that of the screw rod, and the thread direction of the second thread seat is consistent with that of the first thread seat.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a motor rotates and drives the rotation of drive bevel gear, and drive bevel gear drives the threaded rod rotation that driven bevel gear is located, and the support column side of threaded rod upper end is spacing by spacing slider for the vertical direction of support column goes up and down, and goes up and down stably, and the outage can not descend yet, supports stably, need not to add extra equipment;

2. the utility model discloses a fixed a plurality of screw thread stiffeners between first backup pad and first bracing piece and between second backup pad and the second bracing piece, rotatory screw rod makes it screw out from the loop bar, and during first screw thread seat and the screw thread seat were twisted into fixed thread groove, improved support intensity, avoided backup pad deformation.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the lifting pillar structure of the present invention;

FIG. 3 is a schematic view of the structure of the screw-thread reinforcing rod of the present invention;

in the figure: 1. fixing the thread groove; 2. a first support plate; 3. a first support bar; 4. a lifting column; 41. A support pillar; 42. a sleeve; 43. a limiting slide block; 44. a threaded rod; 45. a driven bevel gear; 46. a chassis; 47. a motor; 48. a drive bevel gear; 5. a second support bar; 6. a threaded reinforcing rod; 61. a first threaded seat; 62. a loop bar; 63. a second threaded seat; 64. a screw; 7. a second support plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides the following technical solutions: a tunnel engineering top supporting structure comprises a lifting support column 4, wherein a first supporting rod 3 and a second supporting rod 5 are respectively fixed at the upper end of the lifting support column 4, a first supporting plate 2 is fixed at the upper end of the first supporting rod 3, a second supporting plate 7 is fixed at the upper end of the second supporting rod 5, the lifting support column 4 comprises a supporting column 41 which comprises a supporting column 41, a sleeve 42, a limiting slide block 43, a threaded rod 44, a driven bevel gear 45, a case 46, a motor 47 and a driving bevel gear 48, the bottom of the sleeve 42 is fixed with a threaded rod 44, a support column 41 is fixed on the surface of the threaded rod 44 in a nested mode, a limiting slide block 43 is arranged at the lower end of the support column 41, a driven bevel gear 45 is arranged on the surface of the threaded rod 44 close to the lower end, a case 46 is arranged on the side edge of the sleeve 42 close to the lower end, a motor 47 is fixed inside the case 46, and a driving bevel gear 48 is fixed at the output end of the motor 47.

Specifically, the lower ends of the first supporting plate 2 and the second supporting plate 7 and the upper ends of the first supporting rod 3 and the second supporting rod 5 are respectively provided with a fixed thread groove 1, a thread reinforcing rod 6 is fixed between the two fixed thread grooves 1 corresponding to the upper and lower ends,

through adopting above-mentioned technical scheme, improve the support intensity between backup pad and the bracing piece.

Specifically, the thread reinforcing rod 6 comprises a first thread seat 61, a sleeve rod 62, a second thread seat 63 and a screw 64, wherein the screw 64 is fixed inside the sleeve rod 62, the first thread seat 61 is fixed at the upper end of the screw 64, the second thread seat 63 is fixed at the lower end of the sleeve rod 62,

through adopting above-mentioned technical scheme, conveniently adjust length, conveniently carry out fixed mounting.

Specifically, the supporting column 41 is a cylindrical structure, the sleeve 42 is a rectangular structure, the limiting slide block 43 is connected with the inner wall of the sleeve 42 in a sliding manner,

through adopting above-mentioned technical scheme, conveniently slide and go up and down.

Specifically, a thread groove corresponding to the threaded rod 44 is arranged inside the supporting column 41, the threaded rod 44 is rotatably connected with the sleeve 42 through a bearing,

through adopting above-mentioned technical scheme, conveniently carry out the thread engagement transmission.

Specifically, the screw 64 is in threaded rotary connection with the sleeve rod 62, the first threaded seat 61 is in the same thread direction with the screw 64, the second threaded seat 63 is in the same thread direction with the first threaded seat 61,

through adopting above-mentioned technical scheme, appear becoming flexible when avoiding fixed mounting.

The utility model discloses a theory of operation and use flow: when the utility model is used, the motor 47 rotates to drive the driving bevel gear 48 to rotate, the driving bevel gear 48 drives the threaded rod 44 where the driven bevel gear 45 is located to rotate, the side edge of the supporting column 41 at the upper end of the threaded rod 44 is limited by the limiting slider 43, so that the supporting column 41 is lifted vertically and stably, and the power failure can not be reduced, the supporting is stable, and no additional equipment is needed; according to the required supporting weight, a plurality of thread reinforcing rods 6 are fixed between the first supporting plate 2 and the first supporting rod 3 and between the second supporting plate 7 and the second supporting rod 5, the screw rods 64 are rotated to be screwed out of the sleeve rods 62, and the first thread seats 61 and the second thread seats 63 are screwed into the fixed thread grooves 1, so that the supporting strength is improved, the supporting plate is prevented from being deformed, and the use is portable.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A tunnel engineering roof support structure, includes lifting strut (4), its characterized in that: the upper end of the lifting support column (4) is respectively fixed with a first support rod (3) and a second support rod (5), the upper end of the first support rod (3) is fixed with a first support plate (2), the upper end of the second support rod (5) is fixed with a second support plate (7), the lifting support column (4) comprises a support column (41) which comprises a support column (41), a sleeve (42), a limiting slide block (43), a threaded rod (44), a driven bevel gear (45), a case (46), a motor (47) and a driving bevel gear (48), wherein the bottom of the sleeve (42) is fixed with the threaded rod (44), the surface of the threaded rod (44) is embedded and fixed with the support column (41), the lower end of the support column (41) is provided with the limiting slide block (43), and the surface of the threaded rod (44) is provided with the driven bevel gear (45) at a position, a case (46) is arranged at the position, close to the lower end, of the side edge of the sleeve (42), a motor (47) is fixed inside the case (46), and a driving bevel gear (48) is fixed at the output end of the motor (47).

2. A tunnel engineering roof support structure according to claim 1, characterized in that: the lower extreme of first backup pad (2) and second backup pad (7) and the upper end of first bracing piece (3) and second bracing piece (5) all are provided with fixed thread groove (1), go up two that the lower extreme corresponds be fixed with screw thread stiffener (6) between fixed thread groove (1).

3. A tunnel engineering roof support structure according to claim 2, characterized in that: the thread reinforcing rod (6) comprises a first thread seat (61), a sleeve rod (62), a second thread seat (63) and a screw rod (64), wherein the screw rod (64) is fixed inside the sleeve rod (62), the first thread seat (61) is fixed at the upper end of the screw rod (64), and the second thread seat (63) is fixed at the lower end of the sleeve rod (62).

4. A tunnel engineering roof support structure according to claim 3, characterized in that: the support column (41) is of a cylindrical structure, the sleeve (42) is of a cuboid structure, and the limiting sliding block (43) is connected with the inner wall of the sleeve (42) in a sliding mode.

5. A tunneling roof support structure, according to claim 4, characterized in that: the inside of support column (41) is provided with the thread groove that corresponds with threaded rod (44), bearing rotation is connected between threaded rod (44) and sleeve (42).

6. A tunneling roof support structure, according to claim 5, characterized in that: the screw rod (64) is in threaded rotary connection with the sleeve rod (62), the thread direction of the first thread seat (61) is consistent with that of the screw rod (64), and the thread direction of the second thread seat (63) is consistent with that of the first thread seat (61).