Construction rack for highway tunnel excavation

Abstract

The utility model discloses a construction rack for highway tunnel excavation, belongs to the technical field of highway tunnel construction, and aims to solve the problems that in the prior art, due to the fact that the position of a manual standing plate and the rack are fixed, when a worker in a standing position wants to carry out high-position or low-position construction in a tunnel, the working efficiency is high, and the construction difficulty is low. However, the potential safety hazard of the former is large, and the cost of the latter is high. Comprising four supporting mounting frames, a buffering material bearing mechanism is fixedly connected to the top ends of the four supporting mounting frames, an adjusting mechanism is installed on the inner sides of the middles of the four supporting mounting frames, the adjusting mechanism comprises a fixed connecting plate, and the fixed connecting plate is fixed to the inner sides of the lower portions of the four supporting mounting frames; adjusting assemblies are jointly mounted on the inner sides and the interiors of the four supporting mounting frames, each adjusting assembly comprises two lead screw sliding sleeves, and standing plates are fixed to the inner sides of the two lead screw sliding sleeves.

Description

Technical Field

[0001] The utility model belongs to the technical field of highway tunnel construction, and in particular relates to a construction platform for highway tunnel excavation. Background Art

[0002] A highway tunnel refers to an engineering structure buried in the ground. It is a form of human utilization of underground space. During the construction of a highway tunnel, it is necessary to excavate the tunnel, and a construction scaffold is generally used when excavating the tunnel.

[0003] For example, patent CN214091880U discloses a tunnel engineering excavation construction platform, which relates to the field of construction frames, which includes a construction frame, a plurality of connecting rods arranged on the construction frame, a top plate arranged on the connecting rods through a connecting assembly, and a buffer plate arranged on the top plate through a buffer assembly, and the buffer plate is located above the construction frame.

[0004] During the use of the above-mentioned construction platform, since the position of the artificial standing plate is fixed to the platform, when the staff at the station want to carry out construction at high or low points in the tunnel, they can only rely on people to stand on tiptoe or add additional related adjustment equipment for assistance. However, the former has great safety hazards and the latter is costly. Utility Model Content

[0005] (1) Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a construction platform for highway tunnel excavation, aiming to solve the problem in the prior art that the position of the artificial standing plate is fixed to the platform. Therefore, when the workers in the standing position want to carry out construction at high or low points in the tunnel, they can only rely on people to stand on tiptoe or add relevant adjustment equipment for assistance. However, the former has great safety hazards and the latter has high costs.

[0007] (2) Technical solution

[0008] In order to solve the above technical problems, the utility model provides a construction platform for highway tunnel excavation, including four supporting frames, the top ends of the four supporting frames are connected and fixed with a buffer material receiving mechanism, and the middle inner sides of the four supporting frames are equipped with an adjustment mechanism, the adjustment mechanism includes a fixed connecting plate, and the fixed connecting plate is fixed to the lower inner sides of the four supporting frames, the inner sides and interiors of the four supporting frames are jointly equipped with an adjustment component, the adjustment component includes two screw rod sleeves, and the inner sides of the two screw rod sleeves are fixed with a standing plate, and portable components are installed around the top of the standing plate.

[0009] Furthermore, the adjustment component includes a double-headed motor, and the double-headed motor is fixedly installed in the upper middle part of the fixed connecting plate, the two end heads of the double-headed motor are connected with rotating rods, and the ends of the two rotating rods are fixed with bevel gear 1, one side of the two bevel gears 1 is meshed with bevel gear 2, and the middle part of the two bevel gears 2 is fixed with a transmission screw, one side of the two transmission screws is threaded with a screw sleeve, the other two side corners of the standing plate are fixed with guide sleeves, and the middle part of the guide sleeve is movably sleeved with a guide rod.

[0010] Furthermore, the transmission screw is installed inside two support frames that are opposite to each other, and guide rods are fixed inside two support frames that are opposite to each other.

[0011] Furthermore, the portable component includes side guards, and the side guards are respectively fixed on the four sides of the standing board. A preset groove is opened on one side of the middle part of one of the side guards, and a hinge is installed on one side of the inner side of the preset groove, and a movable door is connected to one side of the hinge.

[0012] Furthermore, the buffer material bearing mechanism includes a connecting plate, and the connecting plate is fixed to the top of four supporting frames, telescopic columns are fixedly installed at the four corners of the top of the connecting plate, and springs are arranged around the telescopic columns, the other end of the telescopic columns and the springs are fixedly connected to a bearing top plate, and a movable side plate is movable in the middle of one side of the bearing top plate.

[0013] Furthermore, the telescopic column and the spring are arranged at the four corners of the top end of the connecting plate.

[0014] (3) Beneficial effects

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model can be used by construction workers to appropriately adjust the height of the standing board on which their feet rest according to the different heights of the construction sites to be constructed in the highway tunnel. The adjustment method is to start the double-headed motor to rotate the rotating rods at both ends and the bevel gear one. At this time, the two bevel gears one can drive the bevel gear two meshed on one side of each other and the transmission screw to rotate. At the same time, the screw sleeve acting on the two screws will drive the standing board to cooperate with the guide sleeve and the guide rod to stably rise and fall along the inner sides of the four supporting frames, so as to adapt to different construction sites. The side guard plates fixed on the upper and surrounding parts of the standing board are used to relatively protect the construction workers and improve construction safety.

[0017] During the excavation of a highway tunnel, personnel can stand on the standing board to carry out corresponding construction work in the working state, wherein the connecting plate at the top of the supporting frame and the telescopic columns and springs arranged at the four corners above the supporting frame can effectively provide good buffering protection and collection for the fallen rocks received on the bearing top board. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of a three-dimensional local structure;

[0021] Figure 3 It is a schematic diagram of the local structure of the regulating mechanism;

[0022] Figure 4 for Figure 1 Schematic diagram of the structure at point A in the middle.

[0023] The markings in the attached drawings are: 1. Support frame; 2. Buffer material bearing mechanism; 21. Connecting plate; 22. Telescopic column; 23. Spring; 24. Load-bearing top plate; 25. Movable side plate; 3. Adjustment mechanism; 31. Fixed connecting plate; 32. Adjustment assembly; 321. Double-headed motor; 322. Rotating rod; 323. Bevel gear one; 324. Bevel gear two; 325. Transmission screw; 326. Screw sleeve; 327. Guide sleeve; 328. Guide rod; 33. Standing board; 34. Portable assembly; 341. Side guard plate; 342. Preset groove; 343. Hinge; 344. Movable door. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] This specific implementation method is a construction platform for highway tunnel excavation, and its structural schematic diagram is as follows Figures 1 to 4As shown, it includes four support frames 1, the top ends of the four support frames 1 are connected and fixed with a buffer material receiving mechanism 2, and the inner side of the middle part of the four support frames 1 is installed with an adjustment mechanism 3, the buffer material receiving mechanism 2 includes a connecting plate 21, and the connecting plate 21 is fixed to the top ends of the four support frames 1, and the four corners of the top end of the connecting plate 21 are fixedly installed with a telescopic column 22, and a spring 23 is sleeved around the telescopic column 22, the other end of the telescopic column 22 and the spring 23 is fixedly connected with a bearing top plate 24, and a movable side plate 25 is movable in the middle of one side of the bearing top plate 24, the telescopic column 22 and the spring 23 are respectively arranged at the four corners of the top end of the connecting plate 21, during the excavation construction of the highway tunnel, the personnel in the working state can stand on the standing plate 33 to perform corresponding construction operations, wherein the connecting plate 21 at the top end of the support frame 1 and the telescopic columns 22 and springs 23 arranged at the four corners above it can effectively provide better buffering protection and collection for the fallen rocks received on the bearing top plate 24.

[0026] The adjusting mechanism 3 includes a fixed connecting plate 31, and the fixed connecting plate 31 is fixed to the inner side of the lower part of the four supporting frames 1. The inner side and the inner part of the four supporting frames 1 are jointly installed with an adjusting component 32. The adjusting component 32 includes a double-headed motor 321, and the double-headed motor 321 is fixedly installed in the upper middle part of the fixed connecting plate 31. The two ends of the double-headed motor 321 are connected to a rotating rod 322, and the ends of the two rotating rods 322 are fixed with a bevel gear 1 323, and one side of the two bevel gears 1 323 is meshed with a bevel gear The second bevel gear 324 is provided with a transmission screw 325 in the middle of the two bevel gears 324, and a screw sleeve 326 is screwed on one side of the two transmission screws 325. The other two corners of the standing plate 33 are fixed with guide sleeves 327, and the middle of the guide sleeves 327 is sleeved with a guide rod 328. The transmission screw 325 is installed inside the two oppositely distributed support frames 1, and the guide rod 328 is fixed inside the other two oppositely distributed support frames 1. The inner side of the two screw sleeves 326 is fixed with the standing plate 33, and the standing plate 33 is fixed with the inner side of the two screw sleeves 326. Portable components 34 are installed around the top, and the portable components 34 include side guards 341, and the side guards 341 are respectively fixed on the top of the four sides of the standing board 33. A preset groove 342 is opened on one side of the middle of one side guard 341, and a hinge 343 is installed on one side of the inner side of the preset groove 342. A movable door 344 is connected to one side of the hinge 343. The construction personnel can adjust the height of the standing board 33 on which the feet are riding according to the different heights of the construction points of the highway tunnel. The adjustment method is to start the double-headed motor 321 to make the two ends The rotating rod 322 and the bevel gear 1 323 rotate, and at this time, the two bevel gears 1 323 can drive the bevel gear 2 324 and the transmission screw 325 engaged on one side of each other to rotate. At the same time, the screw sleeve 326 acting on the two screws will drive the standing plate 33 to cooperate with the guide sleeve 327 and the guide rod 328 to stably rise and fall along the inner side of the four supporting frames 1, so as to adapt to different construction points. The side guard plates 341 fixed on the upper and lower parts of the standing plate 33 are used to relatively protect the construction personnel and improve construction safety.

[0027] Working principle: During the excavation of a highway tunnel, personnel can stand on the standing board 33 to carry out corresponding construction work. The connecting board 21 at the top of the support frame 1 and the telescopic columns 22 and springs 23 at the four corners above it can effectively provide good buffering protection and collection for the falling rocks received by the bearing top plate 24. The construction personnel can appropriately adjust the height of the standing board 33 on which their feet are riding according to the different heights of the construction points of the highway tunnel. The adjustment method is to start the double-headed motor 321 to rotate the rods 32 at both ends. 2 and the bevel gear one 323 rotate, at this time, the two bevel gears one 323 can drive the bevel gear two 324 and the transmission screw 325 meshed on one side of each other to rotate, and at the same time, the screw sleeve 326 acting on the two screws will drive the standing plate 33 to cooperate with the guide sleeve 327 and the guide rod 328 to stably rise and fall along the inner side of the four supporting frames 1, so as to adapt to different construction points, among which the side guard plates 341 fixed on the upper and surrounding parts of the standing plate 33 are used to relatively protect the construction personnel and improve the construction safety.

[0028] All technical features in this embodiment can be freely combined according to actual needs.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A construction platform for highway tunnel excavation, characterized in that: The invention comprises four support frames (1), the top ends of the four support frames (1) are connected and fixed with a buffer material receiving mechanism (2), and the middle inner sides of the four support frames (1) are equipped with an adjustment mechanism (3), the adjustment mechanism (3) comprises a fixed connection plate (31), and the fixed connection plate (31) is fixed to the lower inner sides of the four support frames (1), and the inner sides and the interiors of the four support frames (1) are jointly equipped with an adjustment component (32), the adjustment component (32) comprises two screw rod sliding sleeves (326), and the inner sides of the two screw rod sliding sleeves (326) are fixed with a standing plate (33), and the upper four sides of the standing plate (33) are equipped with a portable component (34).

2. A construction platform for highway tunnel excavation according to claim 1, characterized in that: The adjustment assembly (32) comprises a double-headed motor (321), and the double-headed motor (321) is fixedly mounted on the upper middle part of the fixed connecting plate (31), the two ends of the double-headed motor (321) are connected to rotating rods (322), and the ends of the two rotating rods (322) are fixed with bevel gears 1 (323), one side of the two bevel gears 1 (323) is meshed with bevel gears 2 (324), and the middle part of the two bevel gears 2 (324) is fixed with a transmission screw (325), and the periphery of one side of the two transmission screws (325) is screwed with a screw sleeve (326), and the other two side corners of the standing plate (33) are fixed with guide sleeves (327), and the middle part of the guide sleeve (327) is sleeved with a guide rod (328).

3. A construction platform for highway tunnel excavation according to claim 2, characterized in that: The transmission screw rod (325) is installed inside two support frames (1) that are arranged opposite to each other, and guide rods (328) are fixed inside two other support frames (1) that are arranged opposite to each other.

4. A construction platform for highway tunnel excavation according to claim 1, characterized in that: The portable component (34) includes side guard plates (341), and the side guard plates (341) are respectively fixed on the four sides of the standing board (33), a preset groove (342) is opened on one side of the middle part of one of the side guard plates (341), and a hinge (343) is installed on one side of the inner side of the preset groove (342), and a movable door (344) is connected to one side of the hinge (343).

5. A construction platform for highway tunnel excavation according to claim 1, characterized in that: The buffer material receiving mechanism (2) comprises a connecting plate (21), and the connecting plate (21) is fixed to the top ends of four supporting frames (1), and telescopic columns (22) are fixedly installed at the four corners of the top end of the connecting plate (21), and springs (23) are sleeved around the periphery of the telescopic columns (22), and the other ends of the telescopic columns (22) and the springs (23) are fixedly connected to a bearing top plate (24), and a movable side plate (25) is movable in the middle of one side of the bearing top plate (24).

6. A construction platform for highway tunnel excavation according to claim 5, characterized in that: The telescopic column (22) and the spring (23) are respectively arranged at the four corners of the top end of the connecting plate (21).

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