Telescopic operating platform for bottom of steel beam

Abstract

The utility model discloses a telescopic operating platform for the bottom of a steel beam. The telescopic operating platform comprises an outer truss, a middle truss and a telescopic truss, the middle truss is arranged on the support parallel connection in a manner of moving along the longitudinal direction; the outer side truss is arranged on the steel beam in an inverted hanging mode, the outer side truss can be arranged on the steel beam in a longitudinally movable mode, a telescopic truss is arranged in the outer side truss in a sleeved mode, and the telescopic truss can be connected with the outer side truss in a transversely telescopic mode. The operation platform can smoothly walk, meanwhile, the structure is light and convenient, the construction efficiency of steel beam splicing is improved, and good economic benefits are achieved.

Description

Technical Field

[0001] The utility model relates to the field of bridge construction, and more specifically, to a telescopic operating platform for the bottom of a steel beam. Background Art

[0002] Steel beams are widely used in bridge construction. When the steel beams are assembled using the in-situ assembly process with fewer supports, the movement of the operating platform at the bottom of the beam will inevitably interfere with the structure of the supports. In order to avoid the support structure and ensure the smooth movement of the operating platform, it is necessary to dismantle part of the platform trusses until they pass the interference point before installing them. This will extend the construction period and increase the difficulty of construction. Utility Model Content

[0003] The purpose of the utility model is to provide a telescopic operating platform for the bottom of a steel beam, which avoids the support structure at the support position through the telescopic function of the telescopic truss to achieve smooth movement of the operating platform. At the same time, the structure is light, the construction efficiency of steel beam assembly is improved, and good economic benefits are achieved.

[0004] The technical solution adopted by the utility model to solve this technical problem is: a telescopic operating platform for the bottom of a steel beam, characterized in that it comprises an outer truss, an intermediate truss and a telescopic truss;

[0005] The intermediate truss is disposed on the bracket parallel connection so as to be movable in the longitudinal direction;

[0006] The outer truss is invertedly mounted on the steel beam, and can be moved longitudinally on the steel beam. A telescopic truss is sleeved inside the outer truss, and the telescopic truss can be telescoped transversely and connected to the outer truss.

[0007] Preferably, a travel drive system is provided on the outer truss, and a travel track is provided at the bottom of the steel beam in the longitudinal direction, and the outer truss is driven by the travel drive system to travel along the travel track at the bottom of the steel beam.

[0008] Preferably, a safety anti-hook device is provided between the outer truss and the walking track at the bottom of the steel beam;

[0009] The safety anti-hook device includes a pair of half-shaped clamps, which are connected at the bottom by bolts to form an integral clamp. The rod body at the upper end of the outer truss passes through the integral clamp. The integral clamp is located on the rod body at the upper end of the outer truss and is detachably provided with a screw for limiting the position of the outer truss. The upper end of the half-shaped clamp extends toward the side of the walking track and does not contact the walking track.

[0010] Preferably, a plurality of guide devices are installed laterally on the inner side of the outer truss;

[0011] The guide device comprises a roller fixed to the upper part of the outer truss, so that the telescopic truss can move relative to the outer truss through the roller.

[0012] Preferably, a plurality of telescopic supporting wheels are installed at intervals along the lateral direction on the inner side of the bottom of the outer truss, and the bottom of the telescopic truss is supported and moved by the telescopic supporting wheels.

[0013] Preferably, the rod body along the transverse direction on the outer side of the bottom of the telescopic truss is an I-beam structure, and a plurality of telescopic back-pressure wheels are arranged at intervals along the transverse direction on the lower part of the outer truss, and the telescopic back-pressure wheels are located in the groove of the I-beam structure.

[0014] Preferably, the intermediate truss is formed by welding square tubes, a running track is arranged above the bracket parallel connection, and the intermediate truss is movably arranged on the running track.

[0015] Preferably, the outer truss is formed by connecting a plurality of unit elements by bolts, and the unit elements are formed by welding square tubes.

[0016] The utility model includes at least the following beneficial effects: the present invention adopts a retractable operating platform, which avoids the support structure at the support position through the retractable function of the retractable truss, thereby achieving smooth movement of the operating platform. At the same time, the structure is light, which improves the construction efficiency of steel beam assembly and has good economic benefits.

[0017] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front elevation view of the telescopic operating platform at the bottom of the steel beam of the present invention;

[0019] Figure 2 is an elevation view of the guide device of the present invention;

[0020] Figure 3 It is an elevation view of the safety anti-hook device of the present invention;

[0021] Figure 4 It is the elevation view of the telescopic supporting wheel;

[0022] Figure 5 is a vertical view of the telescopic back pressure wheel of the present invention;

[0023] Figure 6 yes Figure 1 Middle AA section view;

[0024] Figure 7 yes Figure 1 Middle BB section view;

[0025] Figure 8 yes Figure 1 Middle CC section view;

[0026] Explanation of the reference numerals: 1—outer truss; 2—travel driving system; 3—telescopic truss; 4—middle truss; 5—travel track; 6—nut; 7—ear plate; 8—roller; 9—deep groove bearing; 10—pin shaft; 11—screw rod; 12—semi-shaped clamp; 13—bolt; 14—telescopic supporting wheel; 15—telescopic counter-pressure wheel, 16—bracket structure, 17—safety anti-hook device, 18—guide device. DETAILED DESCRIPTION

[0027] The utility model is described in detail and completely below in conjunction with the accompanying drawings. A person of ordinary skill in the art will be able to implement the utility model based on these descriptions. Before describing the utility model in conjunction with the accompanying drawings, it should be particularly pointed out that the technical solutions and technical features provided in each part of the utility model, including the following description, can be combined with each other without conflict.

[0028] In addition, the embodiments of the present invention involved in the following description are generally only a part of the embodiments of the present invention, rather than all of the embodiments. Therefore, based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0029] The following is a further detailed description of the utility model in conjunction with the accompanying drawings and implementations, and its specific implementation process is as follows:

[0030] like Figures 1 to 8 As shown, the utility model provides a telescopic operating platform for the bottom of a steel beam, comprising an outer truss 1, an intermediate truss 4 and a telescopic truss 3;

[0031] The intermediate truss 4 is disposed on the bracket parallel connection so as to be movable in the longitudinal direction;

[0032] The outer truss 1 is hung upside down on the steel beam, and the outer truss 1 can be moved longitudinally on the steel beam. The outer truss 1 is provided with a telescopic truss 3 inside, and the telescopic truss 3 can be connected to the outer truss 1 in a transversely telescopic manner. Figure 1 As described above, outer trusses 1 are provided on both sides of the steel beam in this embodiment. When the telescopic truss 3 on the left side encounters the support structure 16, it retracts into the outer truss 1 and can then pass smoothly. When the telescopic truss 3 on the right side does not encounter the support structure 16, it does not need to retract and continues to move forward.

[0033] This technical solution may also include the following technical details to better achieve the technical effect: a travel drive system 2 is provided on the outer truss 1, and a travel track 5 is provided at the bottom of the steel beam in the longitudinal direction, and the outer truss 1 is driven to travel along the travel track 5 at the bottom of the steel beam by the travel drive system 2. In this embodiment, the cross-section of the outer truss 1 is C-shaped, and the part located above the steel beam is provided with travel wheels, and the corresponding steel beam is also provided with a travel track 5, and the part of the outer truss 1 located below the steel beam is provided with the travel drive system, and the corresponding steel beam is provided with a travel track 5, and the outer truss 1 is driven to move along the longitudinal direction of the steel beam by the travel drive system.

[0034] The technical solution may also include the following technical details to better achieve the technical effect: a safety anti-hook device 17 is provided between the outer truss 1 and the walking track 5 at the bottom of the steel beam;

[0035] The safety anti-hook device 17 includes a pair of half-shaped clamps 12, and the bottom of the pair of half-shaped clamps 12 is connected by bolts 13 to form an integral clamp. The rod body at the upper end of the outer truss 1 passes through the integral clamp. The integral clamp is located on the rod body at the upper end of the outer truss 1 and is detachably penetrated by a screw 11 for limiting the outer truss 1. The upper end of the half-shaped clamp 12 extends toward the side of the walking track 5 and does not contact the walking track 5. In this embodiment, the cross-section of the half-shaped clamp 12 is C-shaped.

[0036] The technical solution may also include the following technical details to better achieve the technical effect: a plurality of guide devices 18 are installed laterally on the inner side of the outer truss 1;

[0037] The guide device 18 includes a roller 8 fixed to the upper part of the outer truss 1, so that the telescopic truss 3 can move relative to the outer truss 1 through the roller 8. In this embodiment, the guide device 18 also includes a lug plate 7, a roller 8, a deep groove ball bearing 10, a pin 10, and a nut 6; the lug plate 7 is fixed to the inner side of the outer truss 1, and a pin 10 is vertically installed on the lug plate 7, and the pin 10 is fixed by a nut 6, and a deep groove ball bearing 10 is provided between the pin 10 and the roller 8.

[0038] The technical solution may also include the following technical details to better achieve the technical effect: a plurality of telescopic supporting wheels 14 are installed at lateral intervals on the inner side of the bottom of the outer truss 1 , and the bottom of the telescopic truss 3 is supported and moved by the telescopic supporting wheels 14 .

[0039] The present technical solution may further include the following technical details to better achieve the technical effect: the transverse rod body on the outer side of the bottom of the telescopic truss 3 is an I-beam structure, and a plurality of telescopic back-pressure wheels 15 are arranged at intervals along the transverse direction on the lower part of the outer truss 1, and the telescopic back-pressure wheels 15 are located in the groove of the I-beam structure.

[0040] The present technical solution may further include the following technical details to better achieve the technical effect: the intermediate truss 4 is formed by welding square tubes, a walking track 5 is arranged above the bracket parallel connection, and the intermediate truss 4 is movably arranged on the walking track 5 to realize the walking function of the intermediate truss 4.

[0041] The technical solution may also include the following technical details to better achieve the technical effect: the outer truss 1 is composed of a plurality of unit elements connected by bolts 13, and the unit elements are formed by welding square tubes.

[0042] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation scheme. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the embodiments shown and described herein.

Claims

1. A telescopic operating platform for the bottom of a steel beam, characterized in that: It consists of outer trusses, middle trusses and telescopic trusses; The intermediate truss is disposed on the bracket parallel connection so as to be movable in the longitudinal direction; The outer truss is invertedly mounted on the steel beam, and can be moved longitudinally on the steel beam. A telescopic truss is sleeved inside the outer truss, and the telescopic truss can be telescoped transversely and connected to the outer truss.

2. The telescopic operating platform for the bottom of a steel beam as claimed in claim 1, characterized in that: The outer truss is provided with a travel drive system, and the bottom of the steel beam is provided with a travel track along the longitudinal direction. The outer truss is driven by the travel drive system to travel along the travel track at the bottom of the steel beam.

3. The telescopic operating platform for the bottom of a steel beam as claimed in claim 2, characterized in that: A safety anti-hook device is provided between the outer truss and the walking track at the bottom of the steel beam; The safety anti-hook device includes a pair of half-shaped clamps, which are connected at the bottom by bolts to form an integral clamp. The rod body at the upper end of the outer truss passes through the integral clamp. The integral clamp is located on the rod body at the upper end of the outer truss and is detachably provided with a screw for limiting the position of the outer truss. The upper end of the half-shaped clamp extends toward the side of the walking track and does not contact the walking track.

4. The telescopic operating platform for the bottom of a steel beam as claimed in claim 1, characterized in that: A plurality of guide devices are installed laterally on the inner side of the outer truss; The guide device comprises a roller fixed to the upper part of the outer truss, so that the telescopic truss can move relative to the outer truss through the roller.

5. The telescopic operating platform for the bottom of a steel beam as claimed in claim 1 or 4, characterized in that: A plurality of telescopic supporting wheels are installed at intervals along the lateral direction on the inner side of the bottom of the outer truss, and the bottom of the telescopic truss is supported and moved by the telescopic supporting wheels.

6. The telescopic operating platform for the bottom of a steel beam as claimed in claim 5, characterized in that: The rod body along the transverse direction on the outer side of the bottom of the telescopic truss is an I-beam structure, and a plurality of telescopic back-pressure wheels are arranged at intervals along the transverse direction on the lower part of the outer truss, and the telescopic back-pressure wheels are located in the groove of the I-beam structure.

7. The telescopic operating platform for the bottom of a steel beam as claimed in claim 1, characterized in that: The middle truss is formed by welding square tubes, a running track is arranged above the bracket parallel connection, and the middle truss is movably arranged on the running track.

8. The telescopic operating platform for the bottom of a steel beam as claimed in claim 1, characterized in that: The outer truss is formed by connecting a plurality of unit elements by bolts, and the unit elements are formed by welding square tubes.

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