Variable lifting point tool for converting and lifting bridge inspection vehicle

Abstract

The utility model discloses a variable hoisting point tool for switching hoisting of a bridge inspection vehicle, which comprises a main stress component, a first bearing arm and a second bearing arm are arranged in the main stress component in a sliding manner, and the first bearing arm and the second bearing arm are parallel to each other and are opposite in telescopic direction; the main stress assembly is fixed to a steel beam box bottom plate through a structure stabilizing piece, the lower side of the main stress assembly is used for arranging a track of an inspection vehicle, and the outer side end of the first bearing arm and the outer side end of the second bearing arm are used for arranging chain blocks. The main stress assembly comprises a bottom plate and a top plate which are correspondingly arranged up and down, three vertical plates which are arranged in parallel are fixed between the bottom plate and the top plate, a first sliding cavity and a second sliding cavity are formed among the three vertical plates, and the inner side ends of the first bearing arm and the second bearing arm are arranged in the first sliding cavity and the second sliding cavity respectively. The device has the advantages that the construction period is shortened, and the construction cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction equipment, in particular to a variable hanging point tooling for the conversion hoisting of a bridge inspection vehicle. Background Technique

[0002] The bridge bottom inspection vehicle is a special equipment suspended under the bridge for daily maintenance of the bridge. During the installation of the bridge inspection vehicle, since the general inspection vehicle track is relatively close to the bottom of the bridge, it is often impossible to hoist the inspection vehicle in one go during the hoisting process, and a chain block needs to be used for conversion hoisting in the middle. During the conversion hoisting process, the upper hanging point cannot be set or the common hanging points cannot meet the hoisting requirements due to the influence of the inspection vehicle structure and the hoisting environment. The main problems are as follows:

[0003] 1. During the traditional conversion hoisting of the inspection vehicle, the hanging points are usually set on the inspection vehicle track. However, since the structures of each inspection vehicle are different, when the distance between the driving structure of the inspection vehicle and the truss is too small, the chain block will interfere with the driving structure of the inspection vehicle, resulting in the failure of the conversion hoisting;

[0004] 2. During the traditional conversion hoisting of the inspection vehicle, if the height of the gantry of the inspection vehicle is relatively low, the stroke of the chain block will be insufficient, and the inspection vehicle cannot be hoisted to the installation position.

[0005] During the traditional conversion hoisting of the inspection vehicle, if there is no ready-made hanging point on the upper part, it is necessary to weld a lifting lug at the bottom of the beam. This will not only damage the box girder coating, but also need to cut off the lifting lug and perform coating repair after hoisting, resulting in an increase in the project quantity and construction cost. Content of the Utility Model

[0006] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a variable hanging point tooling for the conversion hoisting of a bridge inspection vehicle. This tooling can adjust the position of the hanging point for inspection vehicles with different structures and increase the hoisting stroke as much as possible to solve the above problems.

[0007] The purpose of the utility model is realized by the following technical solutions:

[0008] A variable hanging point tooling for the conversion hoisting of a bridge inspection vehicle includes:

[0009] A main stress component, in which a first load-bearing arm and a second load-bearing arm are slidably arranged. The first load-bearing arm and the second load-bearing arm are parallel to each other and have opposite telescoping directions; the main stress component is fixed to the steel beam box floor through a structure stabilizing member. The lower side of the main stress component is used to set the track of the inspection vehicle, and the outer ends of the first load-bearing arm and the second load-bearing arm are used to set the chain block.

[0010] In one or more embodiments of the present utility model, the main force-bearing component includes a bottom plate and a top plate arranged corresponding to each other up and down. Three vertically arranged vertical plates are fixed between the bottom plate and the top plate. A first sliding cavity and a second sliding cavity are formed between the three vertical plates. The inner ends of the first load-bearing arm and the second load-bearing arm are respectively arranged in the first sliding cavity and the second sliding cavity.

[0011] In one or more embodiments of the present utility model, there are four outwardly protruding ear plates on the top plate. The structure stabilizing member passes through the ear plates and is fixed to the bottom plate of the steel beam box.

[0012] In one or more embodiments of the present utility model, the structure stabilizing member is an anti-overturning reverse screw.

[0013] In one or more embodiments of the present utility model, four support plates are further fixed between the bottom plate and the top plate. A track limiting member is fixed to the outside of the support plate by bolts.

[0014] In one or more embodiments of the present utility model, a limiting screw is arranged through the vertical plate. A number of limiting holes are respectively formed on the first load-bearing arm and the second load-bearing arm. The first load-bearing arm and the second load-bearing arm are limited and fixed by the limiting screw passing through and fixing the limiting holes at different positions.

[0015] In one or more embodiments of the present utility model, connectors are arranged at the outer ends of the first load-bearing arm and the second load-bearing arm. An external chain block is fixed through the connectors.

[0016] In one or more embodiments of the present utility model, the track limiting member is an L-shaped hanging plate. A fixing groove is formed between the two symmetric track limiting members on the same side and the bottom plate. The fixing groove is used for installing the track of the inspection vehicle.

[0017] In one or more embodiments of the present utility model, the connector is a force-receiving shackle.

[0018] Advantages of the present utility model:

[0019] (1) The present utility model can be used as a temporary lifting point during the conversion hoisting operation of the beam bottom inspection vehicle. It can be used and disassembled as needed, without welding lifting lugs at the bottom of the box girder, which can reduce a large amount of welding work and the subsequent painting and repair work of the box girder, greatly shorten the construction period, and reduce the construction cost;

[0020] (2) The present utility model can adjust the position of the lifting point according to the structure of different beam bottom inspection vehicles, avoiding interference with the structure of the inspection vehicle itself in the vertical hoisting direction and causing the conversion hoisting to be unable to proceed;

[0021] (3) The utility model is arranged above the inspection vehicle track, and the hanging point position is close to the bottom of the box girder. Therefore, the conversion hoisting stroke can be increased to the maximum extent, and the installation of the inspection vehicle can be avoided due to insufficient hoisting stroke. Description of the Drawings

[0022] Figure 1 is a schematic structural view of the utility model;

[0023] Figure 2 is a side view of the utility model;

[0024] Figure 3 is a schematic structural view of the utility model after expansion;

[0025] Figure 4 is a schematic structural view of the utility model after contraction;

[0026] Figure 5 is a usage state diagram of the utility model. Detailed Description of the Embodiment

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the utility model. Usually, the components of the embodiments of the utility model described and illustrated herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but merely represents the selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the utility model.

[0028] Embodiment 1. In this embodiment, as Figures 1 to 5 shown, a variable hanging point tooling for the conversion hoisting of a bridge inspection vehicle includes a main stress-bearing component. A first load-bearing arm 1 and a second load-bearing arm 2 are slidably arranged in the main stress-bearing component. The first load-bearing arm 1 and the second load-bearing arm 2 are parallel to each other and have opposite telescoping directions. The main stress-bearing component is fixed to the steel beam box floor A through a structure stabilizing member 3. The lower side of the main stress-bearing component is used to arrange the track of the inspection vehicle, and the outer ends of the first load-bearing arm 1 and the second load-bearing arm 2 are used to arrange a manual hoist.

[0029] In this embodiment, the main force-bearing component is used to hoist the track and the inspection vehicle. Then, by adjusting the telescopic lengths of the first load-bearing arm 1 and the second load-bearing arm 2, the chain block is hoisted, so that the hoisting point position can be adjusted according to different structures of the beam-bottom inspection vehicle, avoiding interference with the structure of the inspection vehicle itself in the vertical hoisting direction and causing the conversion hoisting to be unable to proceed. The tooling is fixed by the structure stabilizer 3, so that it can be used as a temporary hoisting point during the conversion hoisting operation of the beam-bottom inspection vehicle. It can be used and disassembled at any time, without welding lifting lugs at the bottom of the box girder, which can reduce a large amount of welding work and the subsequent painting and repair work of the box girder, greatly shorten the construction period, and reduce the construction cost. The tooling can be set on the upper side of the track, and the hoisting point position is close to the bottom of the box girder. Therefore, the conversion hoisting stroke can be increased to the maximum extent, avoiding the inability to install the inspection vehicle due to insufficient hoisting stroke.

[0030] The steel beam box bottom plate A, as the bottom part of the steel beam box, provides basic support for the entire steel beam structure. It bears the vertical loads from the upper structure and evenly transfers these loads to other parts of the steel beam and the lower support structure.

[0031] In one or more embodiments of the present utility model, the main force-bearing component includes a bottom plate 4 and a top plate 5 arranged corresponding to each other up and down. Three parallel vertical plates 6 are fixed between the bottom plate 4 and the top plate 5. A first sliding cavity and a second sliding cavity are formed between the three vertical plates 6. The inner ends of the first load-bearing arm 1 and the second load-bearing arm 2 are respectively arranged in the first sliding cavity and the second sliding cavity.

[0032] In this embodiment, through the formation of the first sliding cavity and the second sliding cavity, the positions of the first load-bearing arm 1 and the second load-bearing arm 2 are fixed, and the two will not be interfered with due to different telescopic directions. The bottom plate 4, the top plate 5 and the vertical plates 6 are formed by welding, or can be integrally formed.

[0033] In one or more embodiments of the present utility model, the top plate 5 has four outwardly protruding ear plates, and the structure stabilizer 3 passes through the ear plates and is fixed to the steel beam box bottom plate.

[0034] In this embodiment, the structure stabilizer 3 penetrates and fixes the ear plates from bottom to top for fixing to the steel beam box bottom plate.

[0035] In one or more embodiments of the present utility model, the structure stabilizer 3 is an anti-overturning reverse screw.

[0036] In this embodiment, the anti-overturning reverse screw usually resists the overturning moment received by the structure by connecting with the structure and utilizing the tensile and shear resistance of the screw, as well as the friction force with the surrounding soil or foundation. When the structure is subjected to an external force and has a tendency to overturn, the anti-overturning reverse screw will generate a reaction force to prevent the structure from overturning, making the fixation between this tooling and the bottom plate of the steel box girder more stable.

[0037] In another embodiment, the structure stabilizer 3 can also adopt a tensile anchor rod, a anti-slide pile or a anchor bolt.

[0038] In one or more embodiments of the present utility model, four support plates are further fixed between the bottom plate 4 and the top plate 5, and a track limiting member 7 is fixed to the outside of the support plate by bolts. The outer plane of the support plate is flush with the side surface of the bottom plate 4 in the length direction, so that the fixation of the track limiting member 7 will not be affected.

[0039] In this embodiment, through the arrangement of four support plates arranged in a rectangular array, the overall structure of the main force-bearing component is made more stable, making its bearing strength greater; and through the arrangement of the support plates, the fixed position of the track limiting member 7 is formed.

[0040] In one or more embodiments of the present utility model, a limiting screw 8 is penetrated through the vertical plate 6, and a number of limiting holes 21 are respectively formed on the first load-bearing arm 1 and the second load-bearing arm 2. By penetrating and fixing the limiting screw 8 through the limiting holes 21 at different positions, the limiting and fixing of the first load-bearing arm 1 and the second load-bearing arm 2 are realized.

[0041] In this embodiment, a threaded hole is formed on the outer vertical plate 6, and round holes are formed on other vertical plates. One side of the limiting screw 8 penetrates through the round holes on the vertical plate 6, the limiting holes 21 on the first load-bearing arm 1 and the second load-bearing arm 2, and then is screwed onto the threaded hole on the vertical plate 6, so as to fix and limit the positions of the first load-bearing arm 1 and the second load-bearing arm 2 after adjusting the telescopic length.

[0042] In one or more embodiments of the present utility model, connecting members 9 are arranged at the outer ends of the first load-bearing arm 1 and the second load-bearing arm 2, and an external chain block is fixed through the connecting members 9.

[0043] In one or more embodiments of the present utility model, the connecting member 9 is a force-receiving shackle.

[0044] In this embodiment, the load-bearing shackle mainly consists of a shackle body and a pin. The shackle body is usually in a bent shape with a relatively large opening for connecting a chain block. The load-bearing shackle realizes the connection function by inserting the pin into the hole of the shackle body. When it is necessary to separate the connection, simply pull out the pin. This connection method is simple and fast, and convenient to operate. The pin passes through the holes of the shackle body and the first load-bearing arm 1 and the second load-bearing arm 2, connecting the shackle body to the first load-bearing arm 1 and the second load-bearing arm 2 respectively, and ensuring that it will not become loose when under force.

[0045] In another embodiment, the connecting member 9 can also be a connecting ring, a hook clamp or a wire rope clip.

[0046] In one or more embodiments of the present utility model, the track limiting member 7 is an L-shaped hanging plate. A fixing groove is formed between the two symmetric track limiting members 7 on the same side and the bottom plate 4. The fixing groove is used for installing the track of the inspection vehicle.

[0047] In this embodiment, the track limiting members 7 are specifically arranged in four, and they are arranged in a rectangular array. The two track limiting members 7 on the same side are symmetrically arranged.

[0048] The working principle of the present utility model:

[0049] This device adopts a balance beam structure. After assembling the main stress component with the first load-bearing arm 1 and the second load-bearing arm 2, it is placed on the upper flange of the track. Then, the track limiting member 7 is hooked to the lower surface of the upper flange of the track, and the track limiting member 7 is fixed to the main stress component with bolts. Install the anti-overturning anti-screw, lock the tooling and the box girder bottom plate with the anti-overturning anti-screw, and adjust the telescoping of the first load-bearing arm 1 and the second load-bearing arm 2 according to the structure of the inspection vehicle. When it is determined that there is no interference between the vertical direction of the lifting point and the structure of the inspection vehicle itself, install the limit screw 8. Finally, install the load-bearing shackle and the conversion lifting chain block to complete the installation of the variable lifting point tooling for the conversion lifting of the bridge inspection vehicle.

[0050] When hoisting the inspection vehicle, first hoist the inspection vehicle as close as possible to the position of the inspection vehicle track by a truck crane or a winch. Then, go up to the vicinity of the track in the vertical direction of the driving mechanism of the inspection vehicle by an aerial work platform to install two sets of variable lifting point tooling for conversion lifting. Connect the conversion lifting hoist of the tooling to the lifting points arranged on the inspection vehicle, slowly adjust the four sets of chain blocks to make the inspection vehicle evenly stressed, and then synchronously and uniformly pull the chain blocks to lift the inspection vehicle horizontally and uniformly. After the chain blocks are fully stressed and safety is ensured, release the hook of the truck crane or the winch, and hoist the inspection vehicle to the installation and fixing position by synchronously and uniformly pulling the chain blocks to realize the conversion lifting of the inspection vehicle.

[0051] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. 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, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, terms such as "set", "connected" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside 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.

Claims

1. A variable lifting point tool for bridge inspection vehicle conversion lifting, characterized in that: include: A main force-bearing component, wherein a first load-bearing arm (1) and a second load-bearing arm (2) are slidably arranged inside the main force-bearing component, wherein the first load-bearing arm (1) and the second load-bearing arm (2) are parallel to each other and have opposite directions of extension and contraction; the main force-bearing component is fixed to the bottom plate of the steel beam box through a structural stabilizer (3), the lower side of the main force-bearing component is used to set the track of the inspection vehicle, and the outer ends of the first load-bearing arm (1) and the second load-bearing arm (2) are used to set a hand winch.

2. The variable lifting point tooling for bridge inspection vehicle conversion and lifting according to claim 1 is characterized by: The main force-bearing component comprises a bottom plate (4) and a top plate (5) which are arranged correspondingly above and below, and three vertical plates (6) which are arranged in parallel are fixed between the bottom plate (4) and the top plate (5), and a first sliding cavity and a second sliding cavity are formed between the three vertical plates (6), and the inner ends of the first load-bearing arm (1) and the second load-bearing arm (2) are respectively arranged in the first sliding cavity and the second sliding cavity.

3. The variable lifting point tooling for bridge inspection vehicle conversion and lifting according to claim 2 is characterized by: The top plate (5) is provided with four outwardly protruding ear plates, and the structural stabilizing member (3) penetrates the ear plates and is fixed to the bottom plate of the steel beam box.

4. The variable lifting point tooling for bridge inspection vehicle conversion and lifting according to claim 1 is characterized by: The structural stabilizing member (3) is an anti-overturning screw.

5. The variable lifting point tooling for bridge inspection vehicle conversion and lifting according to claim 2 is characterized by: Four support plates are also fixed between the bottom plate (4) and the top plate (5), and track limiters (7) are fixed to the outer sides of the support plates by means of bolts.

6. The variable lifting point tooling for bridge inspection vehicle conversion and lifting according to claim 2 is characterized by: A limiting screw (8) is provided through the vertical plate (6), and a plurality of limiting holes (21) are respectively provided on the first load-bearing arm (1) and the second load-bearing arm (2). The limiting screw (8) penetrates and fixes the limiting holes (21) at different positions, thereby realizing the limiting fixation of the first load-bearing arm (1) and the second load-bearing arm (2).

7. The variable lifting point tooling for bridge inspection vehicle conversion and lifting according to claim 1 is characterized by: The outer ends of the first load-bearing arm (1) and the second load-bearing arm (2) are both provided with connecting pieces (9), and the external hand chain hoist is fixed by the connecting piece (9).

8. The variable lifting point tooling for bridge inspection vehicle conversion and lifting according to claim 5 is characterized by: The track stopper (7) is an L-shaped hanging plate, and a fixing groove is formed between two symmetrical track stoppers (7) and the bottom plate (4) located on the same side, and the fixing groove is used to install the track of the inspection vehicle.

9. The variable lifting point tooling for bridge inspection vehicle conversion and lifting according to claim 7 is characterized by: The connecting piece (9) is a force-bearing shackle.

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