Tunnel operation bridge capable of hoisting reinforcing steel bars

Abstract

The utility model discloses a tunnel operation bridge capable of hoisting reinforcing steel bars, which comprises a trestle, at least one side of the trestle is provided with a longitudinal track, two ends of the longitudinal track are provided with moving trolleys, and the moving trolleys are provided with hoisting mechanisms for hoisting the reinforcing steel bars. According to the tunnel operation bridge capable of hoisting the reinforcing steel bars, during hoisting, the two hoisting mechanisms are used for hoisting the two end parts of the reinforcing steel bars respectively for transferring, compared with a manual transferring mode, time and labor are saved, the transferring efficiency is high, and compared with a direct hoisting and transferring mode of a single hoisting mechanism, the hoisting stability is high; the two hoisting mechanisms are arranged on the moving trolleys at the two ends of the longitudinal track respectively, so that the distance between the two moving trolleys can be adjusted along the longitudinal track, and the hoisting device can adapt to hoisting of reinforcing steel bars with different lengths and is high in adaptability.

Description

Technical Field

[0001] The utility model relates to the field of tunnel construction equipment, in particular to a tunnel operation bridge capable of hoisting steel bars. Background Technique

[0002] In tunnel construction, a large amount of steel bars are required for invert construction, and the steel bars need to be transported to the invert construction operation area. At present, usually, vehicles first transport the steel bars to the rear end of the trestle, unload the goods, and then construction workers carry the steel bars from both sides of the trestle to the invert operation construction area. Due to the long length and heavy weight of the steel bars, manual transportation is time-consuming and laborious, with low transportation efficiency, and there are also safety risks at the same time.

[0003] The Chinese patent document with the publication number CN215635353U discloses a trestle device that can be used for the installation of buried central drainage culverts, including a trestle and a hoisting mechanism for hoisting the central drainage culvert. The hoisting mechanism in this technical solution is used to hoist the central drainage culvert. Since the central drainage culvert is short in length, it can be directly hoisted. However, the length of the invert steel bars is long and the lengths are not uniform. If the steel bars are directly hoisted with this hoisting mechanism, the hoisting stability is poor and it cannot be applied. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a tunnel operation bridge capable of hoisting steel bars, which is time-saving and labor-saving, has high transportation efficiency, high hoisting stability and strong adaptability.

[0005] To solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A tunnel operation bridge capable of hoisting steel bars, including a trestle, at least one side of the trestle is provided with a longitudinal track, moving trolleys are arranged at both ends of the longitudinal track, and a hoisting mechanism for hoisting steel bars is arranged on the moving trolleys.

[0007] As a further improvement of the above technical solution: the hoisting mechanism includes a boom, a rotary support and a rotary driving member, the rotary support is connected with the moving trolley, the boom is arranged on the rotary support, a hoisting component is connected to the boom, and the rotary driving member is connected with the rotary support to drive the boom to rotate horizontally.

[0008] As a further improvement of the above technical solution: the hoisting mechanism further includes a swing driving member, the boom is hinged to the rotary support, and the swing driving member is connected with the boom to drive the boom to swing up and down.

[0009] As a further improvement of the above technical solution: the swing driving member is a telescopic structure, one end of the swing driving member is hinged to the boom, and the other end of the swing driving member is hinged to the rotary support.

[0010] As a further improvement of the above technical solution: The rotary support is arranged on a lifting support, and the lifting support is arranged on the mobile trolley and connected with a lifting driving member.

[0011] As a further improvement of the above technical solution: The lifting driving member includes a driving gear, a vertically arranged rack is provided on the mobile trolley, and the driving gear meshes with the rack.

[0012] As a further improvement of the above technical solution: A lifting guiding mechanism is arranged between the lifting support and the mobile trolley.

[0013] As a further improvement of the above technical solution: The jib is a telescopic structure.

[0014] As a further improvement of the above technical solution: Longitudinal tracks are arranged on both sides of the trestle, and the two mobile trolleys on both sides are connected by a connecting beam, and the connecting beam is located below the trestle.

[0015] As a further improvement of the above technical solution: The longitudinal track includes an upper guide rail arranged on the upper part of the trestle and a lower guide rail arranged on the lower part of the trestle.

[0016] Compared with the prior art, the advantages of the present utility model are as follows:

[0017] For the tunnel operation bridge capable of hoisting steel bars of the present utility model, during hoisting, the two hoisting mechanisms respectively hoist the two ends of the steel bar for transfer. Compared with the manual transfer method, it saves time and effort and has high transfer efficiency. Compared with the method of directly hoisting and transferring by a single hoisting mechanism, the hoisting stability is high; the two hoisting mechanisms are respectively arranged on the mobile trolleys at both ends of the longitudinal track, so that the distance between the two mobile trolleys can be adjusted by moving along the longitudinal track, and it can adapt to the hoisting of steel bars of different lengths, with strong adaptability. Description of the Drawings

[0018] Figure 1 is a side view of the tunnel operation bridge capable of hoisting steel bars of the present utility model in the tunnel.

[0019] Figure 2 is a front view of the tunnel operation bridge capable of hoisting steel bars of the present utility model when preparing for hoisting.

[0020] Figure 3 is a side view of the tunnel operation bridge capable of hoisting steel bars of the present utility model when preparing for hoisting.

[0021] Figure 4 is a top view of the tunnel operation bridge capable of hoisting steel bars of the present utility model when preparing for hoisting.

[0022] Figure 5 is Figure 3Enlarged view of part A

[0023] Figure 6 It is the front view of the tunnel operation bridge with a rotatable jib for hoisting steel bars of the present utility model when rotating the jib.

[0024] Figure 7 It is the side view of the tunnel operation bridge with a rotatable jib for hoisting steel bars of the present utility model when rotating the jib.

[0025] Figure 8 It is the top view of the tunnel operation bridge with a rotatable jib for hoisting steel bars of the present utility model when rotating the jib.

[0026] Figure 9 It is the front view of the tunnel operation bridge for hoisting steel bars of the present utility model when hoisting steel bars.

[0027] Figure 10 It is the side view of the tunnel operation bridge for hoisting steel bars of the present utility model when hoisting steel bars.

[0028] Figure 11 It is the top view of the tunnel operation bridge for hoisting steel bars of the present utility model when hoisting steel bars.

[0029] Figure 12 It is the front view of the tunnel operation bridge for unloading steel bars of the present utility model when unloading steel bars.

[0030] Figure 13 It is the side view of the tunnel operation bridge for unloading steel bars of the present utility model when unloading steel bars.

[0031] Figure 14 It is the top view of the tunnel operation bridge for unloading steel bars of the present utility model when unloading steel bars.

[0032] In the figure, each label represents: 1, trestle; 2, longitudinal track; 21, upper guide rail; 22, lower guide rail; 3, moving trolley; 31, rack; 32, connecting beam; 4, hoisting mechanism; 41, jib; 42, hoisting component; 43, rotary support; 44, rotary drive; 45, swing drive; 46, lifting drive; 47, lifting guiding mechanism; 48, lifting support; 9, steel bar. Detailed implementation mode

[0033] The following will further elaborate on the present utility model in detail with reference to the specification drawings and specific embodiments.

[0034] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0035] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0036] In the present utility model, unless otherwise clearly specified and defined, terms such as "assembly", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0037] As Figures 1 to 14 shown, the tunnel operation bridge capable of hoisting steel bars in this embodiment includes a trestle 1. At least one side of the trestle 1 is provided with a longitudinal track 2. Moving trolleys 3 are provided at both ends of the longitudinal track 2. A hoisting mechanism 4 for hoisting steel bars 9 is provided on the moving trolleys 3. Among them, the longitudinal direction is the length direction of the tunnel.

[0038] In the tunnel operation bridge capable of hoisting steel bars in this embodiment, when hoisting steel bars, the transport vehicle transports the steel bars 9 to the trestle bridge 1, and the moving trolleys 3 at both ends of the longitudinal track 2 move to the front and rear of the transport vehicle (i.e., at both ends of the steel bars 9) respectively. The hoisting mechanisms 4 on the moving trolleys 3 at both ends hoist the two ends of the steel bars 9 respectively, and then the hoisting mechanism 4 transfers and lowers the steel bars 9 to the bottom of the tunnel, realizing the hoisting and transfer of the steel bars 9. In the tunnel operation bridge capable of hoisting steel bars in this embodiment, when hoisting, the two hoisting mechanisms 4 hoist the two ends of the steel bars 9 respectively for transfer. Compared with the manual transfer method, it saves time and effort and has high transfer efficiency. Compared with the method of directly hoisting and transferring by a single hoisting mechanism, the hoisting stability is high; the two hoisting mechanisms 4 are respectively arranged on the moving trolleys 3 at both ends of the longitudinal track 2, so that the spacing can be adjusted by moving along the longitudinal track 2, and it can adapt to the hoisting of steel bars 9 of different lengths, with strong adaptability.

[0039] Further, as Figure 4 , 5 , 8 and 11 show, in this embodiment, the hoisting mechanism 4 includes a boom 41, a rotary support 43 and a rotary drive member 44. The rotary support 43 is connected to the moving trolley 3, the boom 41 is arranged on the rotary support 43, a hoisting member 42 is connected to the boom 41, and the rotary drive member 44 is connected to the rotary support 43 to drive the boom 41 to rotate horizontally. The rotary drive member 44 drives the rotary support 43 to rotate, and then drives the boom 41 to rotate horizontally, which can adjust the horizontal position of the boom 41, so that the hoisting mechanism 4 can adjust the hoisting position and the lowering position, facilitating loading and unloading, and making it more convenient to use. Among them, the hoisting member 42 can be, for example, a lifting rope, a hook, etc.; the rotary drive member 44 can be, for example, a rotary oil cylinder, a motor, etc.

[0040] Further, as Figure 5 shows, in this embodiment, the hoisting mechanism 4 further includes a swing drive member 45. The boom 41 is hinged to the rotary support 43, and the swing drive member 45 is connected to the boom 41 to drive the boom 41 to swing up and down. The swing drive member 45 drives the boom 41 to swing up and down, which can adjust the inclination angle of the boom 41. When the booms 41 on the moving trolleys 3 at both ends hoist the steel bars 9, it can prevent the inclination angles of the two booms 41 from differing too much, and the hoisting stability is higher. When hoisting is not required, the boom 41 can also be folded and stored to facilitate the passage of vehicles and other equipment on the trestle bridge 1.

[0041] Further, as Figure 5 shows, in this embodiment, the swing drive member 45 is a telescopic structure. One end of the swing drive member 45 is hinged to the boom 41, and the other end of the swing drive member 45 is hinged to the rotary support 43. Under the telescopic action of the swing drive member 45, the boom 41 is driven to swing up and down to adjust the inclination angle of the boom 41. The structure is simple and the operation is convenient. The swing drive member 45 can be, for example, a telescopic oil cylinder, a telescopic air cylinder or a telescopic electric cylinder and other telescopic mechanisms.

[0042] Furthermore, as Figure 5 shown, in this embodiment, the rotating support 43 is arranged on a lifting support 48, and the lifting support 48 is arranged on the moving trolley 3 and connected with a lifting driving member 46. The lifting driving member 46 drives the lifting support 48 to lift or lower, driving the rotating support 43 and the jib 41 on the rotating support 43 to lift or lower as a whole, so that the height of the jib 41 can be adjusted. When the jibs 41 on the two moving trolleys 3 at both ends lift the reinforcing bars 9, the height difference between the two jibs 41 can be prevented from being too large, and the lifting stability is higher. When hoisting is not required, the jib 41 can also be lowered and stored, which is convenient for vehicles and other equipment to pass on the trestle 1.

[0043] Furthermore, as Figure 5 shown, in this embodiment, the lifting driving member 46 includes a driving gear, and a vertically arranged rack 31 is provided on the moving trolley 3, and the driving gear meshes with the rack 31. Since the driving gear meshes with the rack 31, when the driving gear rotates, it can roll along the rack 31 to realize lifting or lowering, and the lifting support 48 and the like also lift and move synchronously, with a simple and reliable structure. Of course, in other embodiments, the lifting driving member 46 can also be in the form of a combination of a steel wire rope and a winch, or the direct telescopic movement of an oil cylinder or a cylinder, etc.

[0044] Furthermore, as Figure 5 shown, in this embodiment, a lifting guiding mechanism 47 is provided between the lifting support 48 and the moving trolley 3. The lifting guiding mechanism 47 can provide a guiding effect for the lifting movement of the lifting support 48, ensuring a smooth movement process and a high movement accuracy. Preferably, in this embodiment, the lifting guiding mechanism 47 includes a guiding sleeve arranged on the lifting support 48 and a guiding column arranged on the moving trolley 3, and the guiding sleeve and the guiding column cooperate for guiding, with a simple and reliable structure. Of course, in other embodiments, the lifting guiding mechanism 47 can also be a structure such as a guide rail and a slider cooperating with the guide rail, or a guide groove and a slider cooperating with the guide groove, etc., which will not be elaborated here.

[0045] Furthermore, in this embodiment, the jib 41 is a telescopic structure. The jib 41 adopts a telescopic structure, which is more flexible to use in the limited space inside the tunnel and has a wider hoisting coverage range.

[0046] Furthermore, as Figure 2As shown in the figure, in this embodiment, longitudinal tracks 2 are provided on both sides of the trestle 1. The moving trolleys 3 on both sides are connected by a connecting beam 32, and the connecting beam 32 is located below the trestle 1. The running wheels of the moving trolley 3 are respectively arranged on the longitudinal tracks 2 on both sides, and the moving trolleys 3 on both sides are connected into a whole by the connecting beam 32, with a stable and reliable structure; the connecting beam 32 is located below the trestle 1 and does not interfere with the vehicles passing on the trestle 1, with a reasonable structure. In this embodiment, hoisting mechanisms 4 are provided on both sides of the trestle 1 for the moving trolley 3. The hoisting mechanisms 4 can hoist the steel bars 9 from both sides of the trestle 1 at the same time, with higher hoisting efficiency.

[0047] Furthermore, as Figure 2 shown in the figure, in this embodiment, the longitudinal track 2 includes an upper guide rail 21 provided on the upper part of the trestle 1 and a lower guide rail 22 provided on the lower part of the trestle 1. The running wheels of the moving trolley 3 are respectively clamped on the upper guide rail 21 and the lower guide rail 22, preventing the moving trolley 3 from tipping over due to the change of the center of gravity during hoisting, and making the hoisting more stable.

[0048] The above is only a preferred embodiment of the present invention, and it does not impose any form of limitation on the present invention. Although the present invention has been disclosed above with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make many possible changes and modifications to the technical solution of the present invention by using the methods and technical contents disclosed above, or modify it into an equivalent embodiment with equivalent changes. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A tunnel operation bridge capable of hoisting steel bars, comprising a trestle (1), characterized in that: At least one side of the trestle (1) is provided with a longitudinal track (2), both ends of the longitudinal track (2) are provided with a moving trolley (3), and the moving trolley (3) is provided with a lifting mechanism (4) for lifting steel bars (9).

2. The tunnel operation bridge capable of hoisting steel bars according to claim 1 is characterized in that: The hoisting mechanism (4) comprises a suspension arm (41), a rotating support (43) and a rotating driving member (44); the rotating support (43) is connected to the moving trolley (3); the suspension arm (41) is arranged on the rotating support (43); a suspension component (42) is connected to the suspension arm (41); and the rotating driving member (44) is connected to the rotating support (43) to drive the suspension arm (41) to rotate horizontally.

3. The tunnel operation bridge capable of hoisting steel bars according to claim 2 is characterized in that: The hoisting mechanism (4) further comprises a swing driving member (45); the suspension arm (41) is hinged to the rotating support (43); and the swing driving member (45) is connected to the suspension arm (41) to drive the suspension arm (41) to swing up and down.

4. The tunnel operation bridge capable of hoisting steel bars according to claim 3 is characterized in that: The swing driving member (45) is a telescopic structure, one end of the swing driving member (45) is hinged to the suspension arm (41), and the other end of the swing driving member (45) is hinged to the rotating support (43).

5. The tunnel operation bridge capable of hoisting steel bars according to claim 3 is characterized in that: The rotating support (43) is arranged on a lifting support (48), and the lifting support (48) is arranged on the moving trolley (3) and is connected to a lifting driving member (46).

6. The tunnel operation bridge capable of hoisting steel bars according to claim 5 is characterized in that: The lifting drive member (46) comprises a driving gear, and a vertically arranged rack (31) is provided on the moving trolley (3), and the driving gear is meshed with the rack (31).

7. The tunnel operation bridge capable of hoisting steel bars according to claim 5 is characterized in that: A lifting guide mechanism (47) is provided between the lifting support (48) and the movable trolley (3).

8. The tunnel working bridge capable of hoisting steel bars according to any one of claims 2 to 7, characterized in that: The suspension arm (41) is a telescopic structure.

9. The tunnel working bridge capable of hoisting steel bars according to any one of claims 1 to 7, characterized in that: Longitudinal tracks (2) are provided on both sides of the trestle (1), and the moving trolleys (3) on both sides are connected by a connecting beam (32), and the connecting beam (32) is located below the trestle (1).

10. The tunnel operation bridge capable of hoisting steel bars according to any one of claims 1 to 7, characterized in that: The longitudinal track (2) comprises an upper guide rail (21) arranged on the upper part of the trestle (1) and a lower guide rail (22) arranged on the lower part of the trestle (1).

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