Liftable working platform for constructing Bailey steel trestle

Abstract

The utility model relates to a liftable working platform for constructing a Bailey steel trestle. The liftable working platform comprises a platform main body and a lifting component, a working space is formed in the platform main body; the lifting component comprises a lifting assembly and a hoisting piece used for being hoisted on a beret piece, the lifting assembly comprises at least one connecting piece and a driving piece used for driving the platform body to be close to or away from the hoisting piece, and the driving piece is arranged on the connecting piece. The connecting piece is connected with the hoisting piece and the platform body. The operation range of operators can be expanded, the operation risk is reduced, and the operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of Bailey steel trestle bridges, in particular to a liftable working platform used for building Bailey steel trestle bridges. Background Art

[0002] The construction process of the Bailey steel trestle on water is as follows: erection of guide frame, injection of steel pipe piles, cutting of steel pipe piles and welding of load-bearing steel beams, paving of bridge deck structure, and erection of guide frame for the next span of trestle. After the injection of steel pipe piles for one span, welding of supporting steel beams is required between two steel pipe piles on the water surface. This operation is a high-altitude operation near water.

[0003] For this operation, water vessels or steel ladder cages suspended on Bailey plates are often used as cutting and welding platforms, but both methods have significant disadvantages. Water vessels are greatly affected by the height of the water surface. When the water surface cannot reach the required height, the operators on the ship cannot cut steel pipe piles or weld load-bearing steel beams, and the work platform cannot be realized; and the steel ladder cage has a relatively small space, so a single ladder cage can only accommodate one welder to work alone, and the welder can only climb to the work surface by wearing a safety belt to carry out construction, which has high safety risks and low work efficiency. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a liftable working platform for building a Bailey steel trestle.

[0005] The utility model adopts the following technical solutions:

[0006] A scissor lift platform for Bailey steel trestle construction is constructed, comprising:

[0007] A platform body is formed with a working space; and

[0008] The lifting component includes a lifting assembly and a hanging piece for hanging on the Bailey plate, the lifting assembly includes at least one connecting piece and a driving piece for driving the platform body to approach or move away from the hanging piece, the driving piece is arranged on the connecting piece, and the connecting piece is respectively connected to the hanging piece and the platform body.

[0009] In some embodiments, the platform body includes a load-bearing plate and a guardrail, and the load-bearing plate and the guardrail together define the working space.

[0010] In some embodiments, at least one reinforcing rib is disposed on the plate body of the supporting plate.

[0011] In some embodiments, the guardrail includes a column made of I-beam and a plurality of cross bars, and both ends of each cross bar are respectively connected to two adjacent columns.

[0012] In some embodiments, the connecting member is in the shape of a rod, and there are multiple connecting members, and both ends of each connecting member are respectively connected to the platform body and the hanging member.

[0013] In some embodiments, the connecting member is a threaded rod, the driving member is a nut, a plurality of connecting holes are formed on the lifting member and / or the platform body, the connecting member is inserted into the connecting holes, and the nut is movably mounted on the connecting member.

[0014] In some embodiments, the lifting assembly further includes a gasket disposed between the driving member and the lifting member or the platform body.

[0015] In some embodiments, the hanging member is a hanging rod made of I-beam, and there are two of them, and the two hanging members are arranged in parallel and spaced apart.

[0016] In some embodiments, at least one positioning member is further provided between the two hanging members, and the positioning member is respectively connected to the two hanging members.

[0017] In some embodiments, the lower end surface of the hanging component is recessed upward to form a limiting groove for limiting the Bailey plate.

[0018] The utility model has the following advantages:

[0019] By setting a lifting component, this application can adjust the distance between the platform body and the Bailey sheet, thereby expanding the operating range of the operators and avoiding the inability to perform operations due to insufficient height. By setting up a platform body with a working space, its size can be adjusted according to needs, making it suitable for environments where multiple operators work at the same time. By setting up a lifting piece, this application can be hoisted to the Bailey sheet through a hoisting equipment. It is easy to operate and highly mobile. There is no need for operators to wear safety belts to climb to the working surface for construction. The safety risk is low and the working efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the utility model, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show certain embodiments of the utility model, and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0021] Figure 1 It is a structural schematic diagram of a liftable work platform in one embodiment of the utility model. DETAILED DESCRIPTION

[0022] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "rear", "up", "down", "left", "right", "vertical", "horizontal", "bottom", "inside", "inside", "outside", etc. are based on the directions or positional relationships shown in some of the drawings, and are constructed and operated in a specific direction. They are only for the convenience of describing the present technical solution, and do not indicate that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0023] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed", "set" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intermediate elements. The terms "first", "second", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. 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 the specific circumstances.

[0024] In the following description, specific details such as specific system structures and technologies are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details that hinder the description of the present invention.

[0025] Figure 1The utility model shows a liftable work platform 1 in one embodiment, which can be used for the construction of Bailey steel trestle. It includes a platform body 10 and a lifting component 20. The platform body 10 is formed with a working space 13 for accommodating workers for the workers to perform construction work. The lifting component 20 is respectively connected to the platform body 10 and the Bailey sheet, and is used to hoist the platform body 10 on the Bailey sheet, so that the workers can perform high-altitude operations near the water. At the same time, the lifting component 20 can also drive the platform body 10 to move back and forth in the direction of approaching or moving away from the Bailey sheet, thereby controlling the working height of the workers in the working space 13.

[0026] Specifically, the lifting component 20 includes a lifting assembly 22 and a hanging member 21. The hanging member 21 is connected to the Bailey plate and is used to be hung on the Bailey plate. The lifting assembly 22 is respectively connected to the hanging member 21 and the platform body 10. The lifting assembly 22 includes at least one connecting member 221 and a driving member 222. The connecting member 221 is respectively connected to the platform body 10 and the hanging member 21, and is used to connect the liftable work platform 1 to form a whole to achieve overall lifting. The driving member 222 is arranged on the connecting member 221, and is used to drive the platform body 10 to approach or move away from the hanging member 21. Since the hanging member 21 is arranged on the Bailey plate, the driving of the driving member 222 can realize the platform body 10 to approach or move away from the Bailey plate.

[0027] It should be understood that the size of the platform body 10 can be flexibly set according to the needs of the operation, thereby satisfying the needs of multiple operators to work together, and at the same time can expand the horizontal working range of the operators on the operation platform. The setting of the lifting component 20 expands the height (vertical) working range of the operators on the operation platform.

[0028] At the same time, the liftable work platform 1 can be hoisted onto the target Bailey piece by hoisting equipment such as a crane. During this process, the operator can be located in the working space 13 and does not need to wear a safety belt to climb to the working surface for construction. The platform can also be dismantled and moved at any time, which reduces the safety risk of the operation and improves the operation efficiency.

[0029] In some embodiments, the platform body 10 includes a load plate 11 and a guardrail 12. The load plate 11 is used for workers to stand on, and the guardrail 12 is used to prevent workers from falling. The load plate 11 and the guardrail 12 define a working space 13.

[0030] Specifically, the bearing plate 11 includes a plate body 111 and at least one reinforcing rib 112. The reinforcing rib 112 is disposed on the plate body 111 to improve the bearing strength of the bearing plate 11.

[0031] In this embodiment, the plate body 111 is in the shape of a longitudinal rectangular plate, and the reinforcing rib 112 is in the shape of a rod. The reinforcing rib 112 is one in number and coincides with the short axis of the plate body 111 .

[0032] In some other optional embodiments, the plate body 111 may also be arranged in other shapes such as polygonal, elliptical, runway-shaped, irregular, etc., and may also be made of other materials with strong bearing capacity. The reinforcing ribs 112 may also coincide with the long axis of the plate body 111, or may not coincide with both the long axis and the short axis of the plate body 111, and may be arranged obliquely on the plate body 111. The number of reinforcing ribs 112 may also be set to multiple, and when the number is multiple, they may be arranged in parallel and spaced apart, or may be arranged crosswise, etc.

[0033] The guardrail 12 includes a plurality of columns 121 and a cross bar 122, wherein the plurality of columns 121 are spaced apart and erected on the plate 111, and the two ends of the cross bar 122 are respectively connected to two adjacent columns 121, and the side walls of the working space 13 are enclosed by the columns 121 and the cross bar 122 to prevent safety accidents such as workers falling.

[0034] In this embodiment, the number of the columns 121 is six, four of which are respectively erected at the four corners of the rectangular plate 111, and the remaining two are respectively erected at the midpoints of the two opposite long sides of the rectangular plate 111 to improve the stability of the connection. The number of the crossbars 122 is multiple, and any two adjacent columns 121 along the circumference of the plate 111 are parallel to the plate 111 and evenly spaced with multiple crossbars 122 to improve the stability of the guardrail 12.

[0035] In some other optional embodiments, only one cross bar 122 may be provided between two adjacent upright posts 121 along the circumferential direction of the plate body 111 , or a plate-like structure may be provided instead of a rod-like structure.

[0036] In some other optional embodiments, the multiple cross bars 122 between two adjacent columns 121 along the circumference of the plate body 111 can be arranged at uneven intervals, can be arranged crosswise, can be non-parallel to the plate body 111, can be arranged non-parallel, etc.

[0037] In some other optional embodiments, the guardrail 12 can also be configured as a plurality of guard plates, which are all erected on the plate body 111 and connected end to end to enclose the side wall of the working space 13. The guardrail 12 can also include a guard plate and a crossbar 122, wherein the two guard plates are arranged opposite to each other, and the crossbar 122 is respectively connected between the corresponding ends of the two guard plates.

[0038] In some embodiments, the lifting member 21 is rod-shaped, and there are two of them. The two rod-shaped lifting members 21 are arranged in parallel and spaced apart, and the spacing distance between them is adapted to the distance between the connection positions of the connecting member on the platform body 10, so as to ensure that the connecting member 221 can remain perpendicular to the lifting member 21 and the platform body 10 when connecting the platform body 10 and the lifting member 21, avoiding the generation of other reverse force components that reduce the stability of the liftable work platform.

[0039] The rod-shaped lifting member 21 can reduce the raw materials of the liftable work platform 1 and reduce the manufacturing cost. It is also convenient for lifting and installation and provides a clear field of vision.

[0040] In this embodiment, the extending directions of the two rod-shaped hanging members 21 are parallel to the long axis of the plate body 111 .

[0041] In some other optional embodiments, the distance between the two hanging parts 21 can also be adapted to the length of the platform body 10, or to the distance between the two oblique angles of the platform body. The setting of the spacing is related to the connection position between the connecting part 221 and the platform body 10. The distance varies according to the different connection positions of the connecting part 221.

[0042] In some other optional embodiments, the hanging member 21 may also be provided in other shapes such as plate-shaped, ring-shaped, etc. It should be understood that the shape setting only needs to ensure that it can be placed on the Bailey sheet and can be connected to the platform body 10 through the connecting member 221.

[0043] Furthermore, at least one positioning member 23 may be provided between the two hoisting members 21 so that the two hoisting members 21 are connected to form a whole, thereby avoiding relative movement between the two during the hoisting movement.

[0044] In this embodiment, the positioning members 23 are rod-shaped, and there are two of them. The two are arranged in parallel and spaced apart, and the extending direction is parallel to the hanging member 21 .

[0045] In some other optional embodiments, the positioning member 23 may also be made of other materials such as I-beams, and may also be arranged in other shapes such as plates. The two positioning members 23 may also be arranged non-parallel, or may be arranged crosswise.

[0046] In some embodiments, the lower end surface of the hanging component 21 is recessed upward to form a limiting groove (not shown in the figure), which is used to limit the contact position of the Bailey plate when it is hung on the Bailey plate, so as to prevent the shaking and vibration generated by the operator moving in the working space 13 from being transmitted to the hanging component 21, causing relative movement between the hanging component 21 and the Bailey plate, and causing safety hazards.

[0047] It should be understood that, during use, the Bailey plates on the trestle are arranged at even vertical intervals, and the lower end surface of the lifting component 21 is placed on at least two Bailey plates, thereby achieving the lifting of the liftable work platform 1 on the Bailey plates.

[0048] The limit groove can be the same size as the end surface of the Bailey plate in contact with the hanging member 21, and can also be slightly larger than the end surface.

[0049] In some other optional embodiments, the lifting component 21 and the Bailey plate can be limited by setting a limiting component (such as a rope wrap, etc.).

[0050] In some embodiments, the connecting member 221 is arranged in a rod shape and there are multiple connecting members 221 , and both ends of each connecting member 221 are connected to the platform body 10 and the hanging member 21 respectively.

[0051] Further, the connecting member 221 may be a threaded rod, the driving member 222 may be a nut, a plurality of connecting holes are formed on the hanging member 21 and / or the platform body 10, the connecting member 221 is inserted into the connecting holes, and the nut is movably sleeved on the connecting member 221. By setting the driving member 222 as a nut, the movable platform body 1 can be quickly disassembled and assembled, which is convenient for operation and use, and improves the working efficiency.

[0052] In this embodiment, first connection holes (not shown in the figure) are formed at the four corners of the plate body 111, and there are four connection members 221, whose lower ends are respectively inserted into the four first connection holes. Two second connection holes (not shown in the figure) are correspondingly formed on each rod-shaped hanging member 21, and the upper ends of the four connection members 221 are respectively inserted into the four second connection holes. There are eight driving members 222, and the four-four groups are divided into two groups, one group is respectively inserted into the connection members 221 on the side of the four first connection holes away from the second connection holes, and the other group is respectively inserted into the connection members 221 on the side of the four second connection holes away from the first connection holes, thereby realizing the connection between the connection members 221 and the hanging member 21 and the platform body 10.

[0053] When the platform body 10 needs to be moved up and down, it is only necessary to twist the four driving members 222 on the side of the plate body 111, or twist the four driving members 222 on the side of the hanging member 21 to change the positional relationship between the hanging member 21 and the platform body 10, that is, to flexibly adjust the elevation of the working platform. It should be understood that when it is used on the Bailey steel trestle, due to the position limitation of the high-altitude operation near the water, it can only twist the four driving members 222 located on the hanging member 21. The four driving members 222 at the bottom of the plate body 111 are used to bear the load.

[0054] In some other optional embodiments, the second connecting hole may also be provided on the positioning member 23 .

[0055] It should be understood that when it is disposed on the positioning member 23 , the length of the positioning member 23 , the length of the hanging member 21 , and the distance therebetween can be adaptively adjusted.

[0056] In some other optional embodiments, the first connection hole may not be provided on the plate body 111, and the connection between the two is achieved by fixing the lower end of the connecting member 221 to the plate body 111 by welding, integral molding, etc. The second connection hole may not be provided on the hanging member 21, and the hanging member 21 is fixed to the connecting member 221, and the connecting member 221 is connected to the plate body 111 through the driving member 222.

[0057] In some other optional embodiments, the first connecting hole may also be provided on the guardrail 12 .

[0058] In some other optional embodiments, the lifting assembly 22 can also be configured as a hydraulic cylinder, a gas cylinder, a lead screw, etc. There is no need for manual operation of the driving member, and the driving is achieved by a motor or the like.

[0059] In some embodiments, the lifting assembly 22 also includes a plurality of gaskets (not shown in the figure), which are arranged between the driving member 222 and the hanging member 21, and / or between the driving member 222 and the plate body 111 of the platform body 10 to protect the driving member 222, the hanging member 21 and the plate body 111.

[0060] The following will further describe the scalable work platform 1 through a specific embodiment:

[0061] In this embodiment, the plate body 111 of the bearing plate 11 is 6m long and 1m wide and is made of steel plate. The reinforcing rib 112 is 1m long. The column 121 is made of I-beam and is 1200mm high. The crossbar 122 is also made of steel pipe. The two rod-shaped hanging parts 21 are both 9m long and are made of 25# double-piece I-beam. The positioning part 23 is made of 20# channel steel. The connecting part 221 is 6m long and is a round rod with a diameter of 25mm, which is made of precision-rolled threaded steel. The driving part 222 is a fastening nut. The distance between the two connecting parts 221 in the width direction is 940mm, and the distance between the two connecting parts 221 in the length direction is 5650mm.

[0062] It can be understood that the above embodiments only express the preferred implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the utility model. It should be pointed out that, for ordinary technicians in this field, without departing from the concept of the utility model, the above-mentioned technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the utility model. Therefore, all equivalent changes and modifications made to the scope of the claims of the utility model should fall within the scope of the claims of the utility model.

Claims

1. A scissor-lifting work platform for building a Bailey steel trestle, characterized in that: include: The platform body (10) is formed with a working space (13); as well as A lifting component (20) comprises a lifting assembly (22) and a hanging piece (21) for hanging on a Bailey plate, wherein the lifting assembly (22) comprises at least one connecting piece (221) and a driving piece (222) for driving the platform body (10) to move closer to or away from the hanging piece (21), wherein the driving piece (222) is arranged on the connecting piece (221), and the connecting piece (221) is respectively connected to the hanging piece (21) and the platform body (10).

2. The scalable work platform according to claim 1, characterized in that: The platform body (10) comprises a load-bearing plate (11) and a guardrail (12); the load-bearing plate (11) and the guardrail (12) together define the working space (13).

3. The scalable work platform according to claim 2, characterized in that: At least one reinforcing rib (112) is provided on the plate body (111) of the bearing plate (11).

4. The scalable work platform according to claim 2, characterized in that: The guardrail (12) comprises a column (121) made of an I-beam and a plurality of cross bars (122), and the two ends of each cross bar (122) are respectively connected to two adjacent columns (121).

5. The scalable work platform according to claim 1, characterized in that: The connecting member (221) is rod-shaped and there are a plurality of them. The two ends of each connecting member (221) are respectively connected to the platform body (10) and the hanging member (21).

6. The scalable work platform according to claim 5, characterized in that: The connecting member (221) is a threaded rod, the driving member (222) is a nut, a plurality of connecting holes are formed on the hanging member (21) and / or the platform body (10), the connecting member (221) is inserted into the connecting holes, and the nut is movably sleeved on the connecting member (221).

7. The scalable work platform according to claim 6, characterized in that: The lifting component (22) further comprises a gasket, which is arranged between the driving component (222) and the hanging component (21) or the platform body (10).

8. The scalable work platform according to claim 1, characterized in that: The hanging member (21) is a hanging rod made of I-beam, and there are two of them. The two hanging members (21) are arranged in parallel and at intervals.

9. The scalable work platform according to claim 8, characterized in that: At least one positioning member (23) is also provided between the two hanging members (21), and the positioning member (23) is respectively connected to the two hanging members (21).

10. The scalable work platform according to claim 1, characterized in that: The lower end surface of the hanging member (21) is recessed upward to form a limiting groove for limiting the Bailey plate.

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