A tunnel portal construction device

Abstract

The application relates to a tunnel portal construction device and belongs to the technical field of sample storage equipment. The tunnel portal construction device comprises a shell, a limiting assembly, an extension assembly and a suspension assembly. The shell is provided with an opening, the shell comprises two side walls which are oppositely arranged along a first direction, the opening is formed between the two side walls, the two side walls are connected to a bottom wall, and the bottom wall is oppositely arranged to the opening. The limiting assembly is arranged on the side wall and is used for locking a bucket to the shell. The extension assembly is connected to the shell and comprises a movable active end. The suspension assembly is connected to the active end. The device can improve the excavator without improving the structure of the excavator, so that the bucket of the excavator can be used for lifting H-shaped steel, thereby reducing the construction cost.

Description

Technical Field

[0001] This invention belongs to the field of tunnel entrance construction technology, and specifically relates to a tunnel entrance construction device. Background Technology

[0002] Tunnel portal construction includes arch mounting and large pipe roof construction. Typically, the arch mounting process involves erecting an arch frame at the portal, installing formwork around the arch frame, and finally pouring concrete. The arch frame is formed by splicing multiple curved I-beams. Currently, for ease of construction, excavators are often used to lift the I-beams when erecting the arch frame. This involves suspending steel cables from the excavator bucket, attaching the cables to the connecting plates of the I-beams, and moving the bucket to move the I-beams. However, this method has drawbacks. Firstly, the excavator bucket is not designed for lifting objects, resulting in low reliability when lifting I-beams and difficulty in adjusting the arch frame's posture. Secondly, the large size of the excavator bucket can cause it to collide with already erected arch frames when supporting multiple arch frames. Designing new equipment for lifting arch frames would significantly increase construction costs. Therefore, improving existing equipment to meet construction requirements can effectively save costs. In conclusion, how to improve excavators to be suitable for lifting arch frames is a technical problem that needs to be solved. Summary of the Invention

[0003] The purpose of this invention is to provide a tunnel entrance construction device that is compatible with excavators, enabling excavators to lift I-beams that form arch frames.

[0004] To achieve the above-mentioned objectives, the technical solution adopted by this invention is as follows: This application provides a tunnel entrance construction device, including a housing, a limiting component, a telescopic component, and a suspension component. The housing has an opening and includes two sidewalls arranged opposite each other along a first direction, forming the opening between the two sidewalls. The two sidewalls are connected to a bottom wall, which is arranged opposite to the opening. The limiting component is disposed on the sidewalls for locking the bucket to the housing. The telescopic component is connected to the housing and includes a reciprocating movable end. The suspension component is connected to the movable end.

[0005] In some embodiments, the limiting assembly includes a seat, a stop portion, and a connecting rope. A rotating shaft is provided on the sidewall, the axis of which is perpendicular to the first direction. The seat has a shaft hole through which the rotating shaft passes. The rotating shaft is configured to remain stationary when the seat rotates. The seat also has a sliding hole whose axis is perpendicular to the axis of the rotating shaft. The stop portion is inserted into the sliding hole, and the connecting rope is connected to the peripheral wall of the rotating shaft and to the stop portion.

[0006] In some embodiments, the limiting component further includes a support portion connected to the bottom wall via a first elastic member.

[0007] In some embodiments, the housing is movably provided with a limiting portion, the moving direction of which is parallel to the axial direction of the rotating shaft. The rotating shaft has a receiving cavity on its peripheral wall, and further includes a pressure-bearing portion and a pushing portion. The pressure-bearing portion is movably connected to the inner wall of the receiving cavity and protrudes from the peripheral wall of the rotating shaft. A second elastic element is provided between the pressure-bearing portion and the rotating shaft. The pressure-bearing portion is configured such that when the seat rotates, the connecting rope presses tightly against it, causing the pressure-bearing portion to move into the receiving cavity. The pushing portion is movably connected to the rotating shaft along its axial direction. The pressure-bearing portion has an abutting inclined surface, and the pushing portion abuts against this inclined surface. The pushing portion is drively connected to the limiting portion.

[0008] In some embodiments, the side of the pressure-bearing portion protruding from the peripheral wall of the shaft is an arc surface, so that the height of the pressure-bearing portion protruding from the peripheral wall of the shaft gradually increases.

[0009] In some embodiments, the rotating shaft includes a first segment and a second segment, the first segment and the second segment being spaced apart, and the receiving cavity being formed between the first segment and the second segment.

[0010] In some embodiments, the first segment is provided with a slide rail, and the pressure-bearing part is slidably connected to the slide rail.

[0011] In some embodiments, multiple limiting components are arranged at vertical intervals, and adjacent limiting components are arranged at horizontal intervals along the vertical direction.

[0012] In some embodiments, the telescopic assembly includes a hydraulic cylinder and a telescopic sleeve. The hydraulic cylinder is connected to the housing, and its telescopic end forms a movable end. A suspension assembly is connected to the telescopic end. The telescopic sleeve includes an inner rod and a sleeve rod, one of which is connected to the housing. The sleeve rod is fitted onto the inner rod, and the axial direction of the inner rod is parallel to the direction of movement of the telescopic end. The suspension assembly is connected to the other of the inner rod and the sleeve rod.

[0013] In some embodiments, the suspension assembly includes a suspension section and a plurality of unwinding rollers. The suspension section is connected to the telescopic assembly, and the plurality of unwinding rollers are rotatably connected to the suspension section.

[0014] The present invention has the following beneficial effects:

[0015] 1. This device can modify the excavator without altering its structure, enabling the excavator's bucket to be used for lifting I-beams, thus reducing construction costs.

[0016] 2. Suspending I-beams using suspension components can improve their stability and reliability.

[0017] 3. Under the action of the movable end of the telescopic component, the position of the suspension component relative to the shell can be adjusted, reducing the risk of the excavator bucket colliding with the erected I-beam. Attached Figure Description

[0018] Figure 1 This is a front structural diagram of the tunnel entrance construction device of the present invention;

[0019] Figure 2 This is a schematic diagram of the rear structure of the tunnel entrance construction device of the present invention;

[0020] Figure 3 This is a cross-sectional structural schematic diagram of the tunnel entrance construction device of the present invention;

[0021] Figure 4 for Figure 3 Enlarged view of point A;

[0022] Figure 5 This is a schematic diagram of the structure of the rotating shaft of the present invention;

[0023] Figure 6 This is a schematic diagram showing the cooperation between the pushing part and the limiting part of the present invention.

[0024] Reference numerals: 1-shell, 2-side wall, 3-bottom wall, 4-limiting component, 5-bucket, 6-first elastic element, 7-hydraulic cylinder, 8-inner rod, 9-sleeve rod, 10-winding and unwinding roller, 11-suspension part, 12-abutting part, 13-seat body, 14-connecting rope, 15-rotating shaft, 16-pressure bearing part, 17-abutting inclined surface, 18-pushing part, 19-fitting part, 20-pushing part. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Unless otherwise specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.

[0026] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0027] This application provides a tunnel entrance construction device, including a housing 1, a limiting component 4, a telescopic component, and a suspension component. The housing 1 has an opening and includes two side walls 2 arranged opposite each other along a first direction, forming an opening between them. The two side walls 2 are connected to a bottom wall 3, which is opposite to the opening. The limiting component 4 is disposed on the side walls 2 and used to lock a bucket 5 to the housing 1. The telescopic component is connected to the housing 1 and includes a reciprocating movable end. The suspension component is connected to the movable end.

[0028] The first direction can be the direction shown by the X-axis in the figure.

[0029] The housing 1 is used to accommodate the excavator's bucket 5, that is, the excavator's bucket 5 can be put into the housing 1 through the opening of the housing 1.

[0030] When the bucket 5 is placed inside the housing 1, the bucket 5 is locked inside the housing 1 by the limiting component 4, so that when the bucket 5 moves, it can drive the suspension component connected to the housing 1 to move.

[0031] Under the action of the movable end of the telescopic component, the position of the suspension component relative to the housing 1 can be adjusted, reducing the risk of the bucket 5 colliding with the erected I-beam.

[0032] The suspension assembly is used to suspend the I-beam. Compared to directly connecting the bucket 5 and the I-beam with steel cables, suspending the I-beam with the suspension assembly can improve the stability and reliability of the I-beam.

[0033] This device can modify the excavator without altering its structure, allowing the excavator's bucket 5 to be used for lifting I-beams, thus reducing construction costs.

[0034] In some embodiments, the limiting component 4 includes a seat 13, an abutment portion 12, and a connecting rope 14. A rotating shaft 15 is provided on the side wall 2, with the axis of the rotating shaft 15 perpendicular to a first direction. The seat 13 has a shaft hole through which the rotating shaft 15 passes. The rotating shaft 15 is configured to remain stationary when the seat 13 rotates. The seat 13 also has a sliding hole, the axis of which is perpendicular to the axis of the rotating shaft 15. The abutment portion 12 is inserted into the sliding hole, and the connecting rope 14 is connected to the peripheral wall of the rotating shaft 15 and to the abutment portion 12.

[0035] Under the action of the pivot 15, the seat 13 can be rotatably connected to the side wall 2.

[0036] The abutment 12 is inserted into the sliding hole, so that the abutment 12 can move relative to the seat 13.

[0037] The abutment part 12 is used to abut against the bucket 5 when the bucket 5 is contained in the housing 1, so that the bucket 5 will not come out of the housing 1.

[0038] The seat 13 and the abutment 12 can be hollow internally, so that the connecting rope 14 can connect the rotating shaft 15 and the abutment 12.

[0039] The limiting component 4 protrudes from the inside of the side wall 2. If the limiting component 4 is fixed, it will obstruct the bucket 5.

[0040] The connecting rope 14 is used to drive the movement of the abutment part 12, and also reduces the risk of the abutment part 12 coming off the sliding hole of the seat body 13.

[0041] The movement of the abutment part 12 is driven by the connecting rope 14, which is simple and reliable in structure and suitable for use in confined spaces. Furthermore, it facilitates the replacement of parameters such as the length and thickness of the connecting rope 14.

[0042] In this embodiment, when the bucket 5 enters the housing 1 through the opening, the bucket 5 pushes the base 13 to rotate, allowing the bucket 5 to pass through the limiting component 4. A torsion spring can be provided between the base 13 and the side wall 2, so that after the bucket 5 passes through the limiting component 4, the base 13 can be reset and locked, so that the abutment part 12 can prevent the bucket 5 from exiting the housing 1.

[0043] When the base 13 rotates, the shaft 15 remains stationary, allowing the connecting rope 14 to wind around the shaft 15. This allows the connecting rope 14 to pull the abutment 12 into the sliding hole. The advantage of this arrangement is that the length of the structure formed by the combination of the base 13 and the abutment 12 is shortened when the base 13 rotates, reducing the distance the bucket 5 needs to move through the limiting component 4. This makes the housing 1 more compact. Furthermore, when multiple limiting components 4 are provided, the risk of interference between adjacent limiting components 4 is reduced, allowing for a smaller distance between adjacent limiting components 4 and improving the reliability of fixing the bucket 5.

[0044] In some embodiments, the limiting component 4 further includes a support portion, which is connected to the bottom wall 3 via a first elastic member 6.

[0045] The first elastic element 6 can be a spring.

[0046] After the bucket 5 enters the housing 1, the bucket 5 abuts against the support and pushes the support to move, allowing the bucket 5 to pass through the limiting component 4. After the bucket 5 passes through the limiting component 4, the support pushes the bucket 5 to move, so that the upper edge of the bucket 5 abuts against the abutment part 12.

[0047] In some embodiments, the housing 1 is movably provided with a limiting portion, the moving direction of which is parallel to the axial direction of the rotating shaft 15. The peripheral wall of the rotating shaft 15 is provided with a receiving cavity. The rotating shaft 15 is also provided with a pressure-bearing portion 16 and a pushing portion 18. The pressure-bearing portion 16 is movably connected to the inner wall of the receiving cavity and protrudes from the peripheral wall of the rotating shaft 15. A second elastic element is provided between the pressure-bearing portion 16 and the rotating shaft 15. The pressure-bearing portion 16 is configured such that when the seat 13 rotates, the connecting rope 14 presses tightly against the pressure-bearing portion 16, causing the pressure-bearing portion 16 to move into the receiving cavity. The pushing portion 18 is movably connected to the rotating shaft 15 along the axial direction of the rotating shaft 15. The pressure-bearing portion 16 is provided with an abutting inclined surface 17, and the pushing portion 18 abuts against the abutting inclined surface 17. The pushing portion 18 is drively connected to the limiting portion.

[0048] The limiting part can be provided above the seat 13 to restrict the seat 13 from rotating outward from the opening of the housing 1.

[0049] The second elastic element can be a spring, used to reset the pressure bearing part 16 when the connecting rope 14 does not contact the pressure bearing part 16.

[0050] The inclined surface 17 is used to push the pushing part 18. That is, by reasonably setting the inclination direction of the inclined surface 17, when the pressure bearing part 16 moves into the receiving cavity, the pushing part 18 can move under the action of the inclined surface 17. Since the pushing part 18 and the limiting part are connected by transmission, the pushing part 18 can drive the limiting part to move.

[0051] The initial state of the limiting part may not be above the seat 13, in which case the limiting part will not limit the seat 13. Then, the limiting part is driven to move by the pushing part 18, so that the limiting part can be above the seat 13, so that the limiting part can limit the seat 13.

[0052] The specific structure of the transmission connection between the limiting part and the pushing part 18 can be selected from the existing structures. For example, the side wall 2 can be rotatably connected to the pushing part 20, the pushing part 18 abuts against one side of the pushing part 20, the pushing part 18 is provided with a mating part 19, the mating part 19 abuts against the other side of the pushing part 20, when the pushing part 20 moves, the pushing part 20 rotates, and then the pushing part 20 pushes the moving part to move, so that the limiting part can also move.

[0053] The pressure-bearing part 16 can be used to cooperate with the connecting rope 14 to drive the pushing part 18 to move. On the other hand, it can increase the winding radius of the connecting rope 14, thereby increasing the distance that the abutment part 12 can move when the seat 13 rotates, further reducing the distance that the bucket 5 needs to move past the limiting component 4.

[0054] In some embodiments, the side of the pressure-bearing portion 16 protruding from the peripheral wall of the rotating shaft 15 is an arc surface, so that the height of the pressure-bearing portion 16 protruding from the peripheral wall of the rotating shaft 15 gradually increases.

[0055] The pressure-bearing part 16 protrudes from the side of the circumferential wall of the rotating shaft 15 and is arc-shaped, so that when the seat body 13 rotates, the winding radius of the connecting rope 14 gradually increases. This design can protect the connecting rope 14, reduce the risk of the connecting rope 14 bending and breaking, and increase the service life of the connecting rope 14.

[0056] In embodiments where a spring is provided between the pressure-bearing part 16 and the rotating shaft 15, the pressure-bearing part 16 can also protect the connecting rope 14. That is, when the force between the connecting rope 14 and the pressure-bearing part 16 is large enough, the connecting rope 14 can push the pressure-bearing part 16 to move into the receiving cavity, which achieves the purpose of driving the pushing part 18 to move and reduces the risk of damage to the connecting rope 14.

[0057] In some embodiments, the rotating shaft 15 includes a first segment and a second segment, the first segment and the second segment are spaced apart, and a receiving cavity is formed between the first segment and the second segment.

[0058] The first segment and the second segment can be connected by a connecting part, so that a gap is formed between the first segment and the second segment.

[0059] The advantages of this design are twofold: firstly, the first and second segments can be detachably connected, facilitating the assembly and disassembly of the pressure-bearing part 16; secondly, the size of the receiving cavity can be adjusted by changing the gap between the first and second segments.

[0060] In some embodiments, the first segment is provided with a slide rail, and the pressure-bearing part 16 is slidably connected to the slide rail.

[0061] Under the action of the slide rail, the pressure-bearing part 16 can be movably connected to the rotating shaft 15.

[0062] The specific extension direction of the slide rail can be reasonably set as needed, so that when it is connected to the side of the pressure bearing part 16 that protrudes from the rotating shaft 15, the pressure bearing part 16 can move into the receiving cavity and the degree of protrusion can be reduced.

[0063] In some embodiments, multiple limiting components 4 are arranged at intervals in the vertical direction, and adjacent limiting components 4 are arranged at intervals in the horizontal direction.

[0064] Multiple limiting components 4 are arranged at an angle in space.

[0065] The advantage of this setup is that, since the two side walls 2 on the soil inlet side of the bucket 5 are inclined, multiple limiting components 4 are arranged in a corresponding inclined manner in space, so that the bucket 5 can be limited by multiple limiting components 4.

[0066] In some embodiments, the telescopic assembly includes a hydraulic cylinder 7 and a telescopic sleeve. The hydraulic cylinder 7 is connected to the housing 1, and its telescopic end forms a movable end. A suspension assembly is connected to the telescopic end. The telescopic sleeve includes an inner rod 8 and a sleeve rod 9. One of the inner rod 8 and the sleeve rod 9 is connected to the housing 1. The sleeve rod 9 is sleeved on the inner rod 8, and the axial direction of the inner rod 8 is parallel to the direction of movement of the telescopic end. The suspension assembly is connected to the other of the inner rod 8 and the sleeve rod 9.

[0067] The specific structure and working principle of the hydraulic cylinder 7 are well known to those skilled in the art.

[0068] By controlling the flow of oil in the hydraulic cylinder 7, the extension or retraction of the telescopic end can be controlled, thereby allowing the position of the suspension assembly relative to the housing 1 to be adjusted.

[0069] The sleeve 9 is fitted onto the inner rod 8, allowing the sleeve 9 to move relative to the inner rod 8. The telescopic sleeve provides support for the suspension assembly, thereby increasing the connection strength between the suspension assembly and the housing 1.

[0070] In some embodiments, the suspension assembly includes a suspension portion 11 and a plurality of unwinding rollers 10. The suspension portion 11 is connected to the telescopic assembly, and the plurality of unwinding rollers 10 are rotatably connected to the suspension portion 11.

[0071] The drive structure of the unwinding roller 10 can be selected from existing structures, which will not be described in detail here.

[0072] By winding the steel cable around the unwinding roller 10 and then connecting the steel cable to the I-beam, the purpose of lifting the I-beam can be achieved.

[0073] Multiple unwinding rollers 10 are provided, so that when lifting the steel structure, the angle or posture of the steel structure can be adjusted by adjusting the winding of the steel cable by each unwinding roller 10.

[0074] The above embodiments are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Any modifications, alterations, alterations, or substitutions made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A device for tunnel portal construction, characterized in that, The utility model relates to a shell (1) is provided with opening, the shell (1) includes two side walls (2) of opposite setting along first direction, and the opening is formed between two side walls (2), and two side walls (2) are connected to bottom wall (3), and bottom wall (3) is opposite to the opening and is set, and the shell (1) is movably provided with limiting portion, and the moving direction of limiting portion is parallel to the axial direction of pivot (15); Limiting assembly (4) is arranged in side wall (2) and is used for locking excavator bucket (5) in shell (1), and limiting assembly (4) includes seat body (13), abutting portion (12) and connecting rope (14), and side wall (2) is provided with pivot (15), and the axis of pivot (15) is perpendicular to first direction, and seat body (13) is provided with shaft hole, and pivot (15) is arranged in shaft hole, and pivot (15) is configured as seat body (13) rotates, and pivot (15) remains stationary, and seat body (13) is provided with slide hole, and the axial direction of slide hole is perpendicular to the axial direction of pivot (15), and abutting portion (12) is inserted in slide hole, and connecting rope (14) is connected to the circumferential wall of pivot (15), and connecting rope (14) is connected to abutting portion (12), and the circumferential wall of pivot (15) is provided with containing cavity, and pivot (15) is further provided with pressure receiving portion (16) and push portion (18), and pressure receiving portion (16) is movably connected to the inner wall of containing cavity, and pressure receiving portion (16) protrudes from the circumferential wall of pivot (15), and second elastic member is arranged between pressure receiving portion (16) and pivot (15), and pressure receiving portion (16) is configured as seat body (13) rotates, and connecting rope (14) is tightly pressed on pressure receiving portion (16) to make pressure receiving portion (16) move towards containing cavity, and push portion (18) is movably connected to pivot (15) along the axial direction of pivot (15), and pressure receiving portion (16) is provided with abutting inclined surface (17), and push portion (18) abuts against abutting inclined surface (17), and push portion (18) is drivingly connected to limiting portion, and the side of pressure receiving portion (16) protruding from the circumferential wall of pivot (15) is arc-shaped, so that the height of pressure receiving portion (16) protruding from the circumferential wall of pivot (15) gradually increases, and pivot (15) includes first segment and second segment, and the first segment and the second segment are spaced apart, and the containing cavity is formed between the first segment and the second segment; Telescopic assembly is connected to shell (1) and includes reciprocating movable movable end; Suspension assembly is connected to movable end. The limiting assembly (4) further includes a support portion connected to the bottom wall (3) by a first elastic member (6).

2. The tunnel portal construction apparatus of claim 1, wherein The first segment is provided with a slide rail, and the pressure receiving portion (16) is slidingly connected to the slide rail.

3. The tunnel portal construction apparatus of claim 1, wherein The limiting assembly (4) is vertically spaced apart, and adjacent limiting assemblies (4) are laterally spaced apart along the vertical direction.

4. The tunnel portal construction apparatus of claim 1, wherein The telescopic assembly comprises:

5. The tunnel portal construction apparatus of claim 1, wherein ​ A hydraulic cylinder (7) is connected to the shell (1), and a telescopic end of the hydraulic cylinder (7) forms the movable end, and the suspension assembly is connected to the telescopic end; A telescopic sleeve pipe comprises an inner rod (8) and a sleeve rod (9), one of the inner rod (8) and the sleeve rod (9) is connected to the shell (1), the sleeve rod (9) is sleeved on the inner rod (8), an axial direction of the inner rod (8) is parallel to a moving direction of the telescopic end, and the suspension assembly is connected to the other one of the inner rod (8) and the sleeve rod (9).

6. The tunnel portal construction apparatus of claim 1, wherein The suspension assembly comprises: A suspension part (11) connected to the telescopic assembly; A plurality of winding and unwinding rollers (10) are rotationally connected to the suspension part (11).

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