Adjustable double-width box girder surface transverse safety channel

Abstract

The utility model relates to the technical field of box girder construction, and particularly discloses an adjustable transverse safety channel for a double-width box girder surface. The movable stairway comprises a left movable stairway and a right movable stairway which are oppositely arranged on the top face of a double-piece box girder, and a transverse channel capable of adjusting the distance between the two stairways is arranged between the left stairway and the right stairway for connection. When the interval between the two box girders is changed, the position and the interval of the staircase can be adjusted according to actual requirements, and the staircase is suitable for different use scenes.

Description

TECHNICAL FIELD

[0001] The utility model relates to box girder construction technical field, and concretely relates to a kind of adjustable double-width box girder beam surface transverse safety passage. BACKGROUND

[0002] In current highway, national and provincial trunk line engineering project design, double-width mode is generally used, bridge engineering is generally used separation type design, in bridge construction, double-width is often needed simultaneously or cross operation, when construction to beam surface, with ground height difference is larger, and there is certain interval between double-width, construction personnel cannot pass directly, generally through erecting safety passage between double-width box girder to solve.Existing double-width box girder safety passage is generally fixed length, but the design interval between double-width box girder can change because of bridge width, design change, expansion joint of bridge, bridge turning and other reasons change, the safety passage between traditional double-width box girder is more limited in use. INVENTION CONTENTS

[0003] The utility model provides a kind of movable adjustable double-width box girder beam surface transverse safety passage, it can overcome certain or some defects of prior art.

[0004] According to the utility model of a kind of movable adjustable double-width box girder beam surface transverse safety passage suitable for it, it includes movable staircase that is oppositely arranged in the left and right two widths of double-width box girder top surface, and the transverse passage connection of adjustable distance between two staircases between left and right two widths is equipped.

[0005] Through the utility model, movable staircase and adjustable transverse passage provide great flexibility, when the interval between double-width box girder changes, the position and pitch of staircase can be adjusted according to actual needs, adapt to different use scenarios.

[0006] As preferred, the transverse passage includes left and right connecting parts connected with the staircase respectively, the left connecting part includes two mutually parallel first guardrails, the first guardrail includes two telescopic inner rods and a first fixed rod arranged from top to bottom in the same vertical plane, two telescopic inner rods and the first fixed rod are vertically provided with two first vertical rod connections, the right connecting part includes two mutually parallel second guardrails, the second guardrail includes two telescopic outer rods and a second fixed rod arranged from top to bottom in the same vertical plane and hollow inside, two telescopic outer rods and the second fixed rod are vertically provided with two second vertical rod connections, the first fixed rod can be inserted into the inside of the second fixed rod for cooperation, and the telescopic inner rod can be inserted into the inside of the telescopic outer rod for cooperation.

[0007] Through the utility model, the horizontal passageway is divided into left connecting part and right connecting part, and the separated design makes the maintenance and inspection work more quickly.

[0008] As preferred, a first walking surface connection is horizontally arranged between the two first fixed rods, and a second walking surface connection is horizontally arranged between the two second fixed rods.

[0009] Through the utility model, the first walking surface and the second walking surface arranged between the first fixed rod and the second fixed rod are used as the passageway for the construction personnel to walk, and the structure of the first walking surface and the second walking surface staggered up and down facilitates the adjustment of the positions of the left connecting part and the right connecting part.

[0010] As preferred, a plurality of first through holes are arranged on the first fixed rod, a second through hole penetrating the second fixed rod and the second walking surface is arranged on the second fixed rod and the second walking surface, and a bolt penetrating a certain first through hole and the second through hole and fixing the first fixed rod and the second fixed rod is further arranged on the second fixed rod and the second walking surface.

[0011] Through the utility model, the plurality of first through holes arranged on the first fixed rod are used for multi-stage adjustment of the length of the horizontal passageway to meet different use requirements.

[0012] As preferred, the two second fixed rods are close to one side of the second walking surface and are respectively provided with an insertion port.

[0013] Through the utility model, the insertion port arranged on the second fixed rod facilitates the insertion of the first walking surface connected with the first fixed rod into the side surface of the second fixed rod, and the structural strength of the connection part is increased.

[0014] As preferred, the first fixed rod comprises a limiting rod and a positioning rod coaxially arranged.

[0015] The utility model discloses, first fixed link is by coaxial setting's limiting link and locating link, and the diameter of limiting link is same with second fixed link and diameter is bigger than locating link, and this design is convenient for locating link to insert second fixed link and complete locating, and the diameter of limiting link is same with second fixed link, when locating link inserts second fixed link certain depth, limiting link contacts second fixed link, and the situation that locating link inserts too deep is prevented.

[0016] As preferred, the stair bottom of the left and right two widths of the double-width box girder is respectively provided with a walking universal wheel.

[0017] Through the utility model, the walking universal wheel makes the safety passage can move position easily, provides great flexibility, needs adjusting position according to work demand. Because of the equipment of walking universal wheel, when moving safety passage, it is unnecessary to need too much manual force, thereby saves labor. Walking universal wheel is also equipped with a brake device, when the stair of the left and right two widths of the double-width box girder reaches the predetermined place, locks the brake device, and walking universal wheel no longer rotates.

[0018] As preferred, the stair and the transverse passage are made of Q390GJD steel.

[0019] Through the utility model, the yield strength of Q390GJD steel is higher, so that the stair and the transverse passage have very high bearing capacity and can bear larger load. The fatigue resistance of Q390GJD steel is superior, and the stair and the transverse passage can bear repeated load in long-term use and are not easy to produce fatigue damage. Q390GJD steel has excellent performance, but its cost is relatively reasonable, has good performance-price ratio, and is favorable to reducing overall engineering cost. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the schematic diagram of the adjustable double-width box girder surface transverse safety passage in example 1;

[0021] Figure 2 It is the schematic diagram of the transverse passage in example 1;

[0022] Figure 3 It is the schematic diagram of the left connecting part in example 1;

[0023] Figure 4 It is the schematic diagram of the left connecting part in example 1;

[0024] Figure 5 It is the schematic diagram of the first fixed link in example 1;

[0025] Figure 6 It is the schematic diagram of the second fixed link in example 1;

[0026] Figure 7 It is the schematic diagram of the stair in example 1. Detailed Implementation

[0027] To further understand the content of this utility model, a detailed description of the utility model is provided in conjunction with the embodiments. It should be understood that the embodiments are merely illustrative and not limiting of the utility model.

[0028] Example 1

[0029] like Figures 1-7 As shown, this embodiment provides a transverse safety passage suitable for the surface of an adjustable double-span box girder, which includes movable staircases 120 arranged opposite to each other on the top surface of the double-span box girder 110, and a transverse passage 130 connecting the two staircases 120 with adjustable distance between them.

[0030] Through this embodiment, the movable staircase 120 and the adjustable transverse passage 130 provide great flexibility. When the interval between the double box beams 110 changes, the position and spacing of the staircase 120 can be adjusted according to actual needs to adapt to different usage scenarios.

[0031] In this embodiment, the transverse passage 130 includes a left connecting part 210 and a right connecting part 220 respectively connected to the staircase 120. The left connecting part 210 includes two parallel first guardrails 310. Each first guardrail 310 includes two telescopic inner rods 311 and a first fixed rod 312 arranged from top to bottom on the same vertical plane. Two first vertical rods 313 are vertically arranged between the two telescopic inner rods 311 and the first fixed rod 312. The right connecting part 220 includes two parallel second guardrails 410. Each second guardrail 410 includes two telescopic outer rods 411 and a second fixed rod 412 arranged from top to bottom on the same vertical plane and both of which are hollow inside. Two second vertical rods 413 are vertically arranged between the two telescopic outer rods 411 and the second fixed rod 412. The first fixed rod 312 can extend into the second fixed rod 412 for engagement, and the telescopic inner rod 311 can extend into the telescopic outer rod 411 for engagement.

[0032] In this embodiment, the transverse passage 130 is divided into a left connecting part 210 and a right connecting part 220. This separate design makes maintenance and inspection work more convenient. The first guardrail 310 and the second guardrail 410 provide additional support for the transverse passage 130 and can protect construction workers on the transverse passage 130 from falling, thereby improving the safety and stability of the transverse passage 130.

[0033] In this embodiment, a first traveling surface 320 is horizontally connected between the two first fixed rods 312, and a second traveling surface 420 is horizontally connected between the two second fixed rods 412. The first traveling surface 320 and the second traveling surface 420 are staggered vertically, and the first traveling surface 320 is located below the second traveling surface 420.

[0034] Through the embodiment, the first walking surface 320 and the second walking surface 420 arranged between the first fixed rod and the second fixed rod are used as a passage for the construction personnel to walk, and the up-and-down staggered structure of the first walking surface 320 and the second walking surface facilitates the adjustment of the positions of the left connecting part 210 and the right connecting part 220. When the length of the transverse passage 130 is shortened or lengthened, the first walking surface 320 and the second walking surface 420 will not interfere with each other.

[0035] In the embodiment, the first fixed rod 312 is provided with a plurality of first through holes 510, the second fixed rod 412 and the second walking surface 420 are provided with a second through hole 610 penetrating the second fixed rod 412 and the second walking surface 420, and the second fixed rod 412 and the second walking surface 420 are further provided with a bolt 230 penetrating a certain first through hole 510 and the second through hole 610 and fixing the first fixed rod 312 and the second fixed rod 412.

[0036] Through the embodiment, the length of the transverse passage 130 is adjusted in multiple stages by providing the first fixed rod 312 with a plurality of first through holes 510 to meet different use requirements. The positions of the first fixed rod 312 and the second fixed rod 412 are adjusted until a certain first through hole 510 and the second through hole 610 coincide, the bolt 230 penetrates the first through hole 510 and the second through hole 610 at the same time, and the bolt 230 is tightened to complete the fixing. Through the precise cooperation of the bolt 230 penetrating the corresponding first through hole 510 and the second through hole 610, it can be ensured that the connection between the first fixed rod 312 and the second fixed rod 412 is firm and will not be loose during use. The fixing mode of the bolt 230 makes the installation and disassembly process of the transverse passage 130 simple and fast, greatly saving time and labor cost.

[0037] In the embodiment, the two second fixed rods 412 are provided with plug-in interfaces 620 close to one side of the second walking surface 420.

[0038] Through the embodiment, the plug-in interface 620 provided on the second fixed rod 412 facilitates the insertion of the first walking surface 320 connected with the first fixed rod 312 into the side surface of the second fixed rod 412, and increases the structural strength of the connection. If there is no plug-in interface 620, a gap needs to be left between the first fixed rod 312 and the first walking surface 320 for the second fixed rod 412 to be inserted, so that the length adjustment of the transverse passage 130 can be realized, and the structural strength is greatly reduced.

[0039] In the embodiment, the first fixed rod 312 includes a limiting rod 520 and a positioning rod 530 arranged coaxially.

[0040] Through the embodiment, the first fixed rod 312 is composed of a limiting rod 520 and a positioning rod 530 arranged coaxially, the diameter of the limiting rod 520 is the same as that of the second fixed rod 412 and is larger than that of the positioning rod 530, which facilitates the insertion of the positioning rod 530 into the second fixed rod 412 to complete positioning, and at the same time, the diameter of the limiting rod 520 is the same as that of the second fixed rod 412, when the positioning rod 530 is inserted into the second fixed rod 412 to a certain depth, the limiting rod 520 contacts the second fixed rod 412, thereby preventing the positioning rod 530 from being inserted too deeply.

[0041] In the embodiment, the bottom of the stair 120 of each of the left and right two widths of the double-width box girder 110 is provided with a walking universal wheel 710.

[0042] Through the embodiment, the walking universal wheel 710 enables the safety passage to be easily moved to a position, thereby providing great flexibility, and the position needs to be adjusted according to work requirements. Due to the provision of the walking universal wheel 710, manual labor is not required when the safety passage is moved, thereby saving labor. The walking universal wheel 710 is further provided with a braking device, when the stairs of the left and right two widths of the double-width box girder 110 reach a predetermined position, the braking device is locked, and the walking universal wheel 710 no longer rotates.

[0043] In the embodiment, the stair 120 and the transverse passage 130 are made of Q390GJD steel.

[0044] Through the embodiment, the Q390GJD steel has high yield strength, so that the stair 120 and the transverse passage 130 have high bearing capacity and can bear large loads. The Q390GJD steel has excellent fatigue resistance, so that the stair 120 and the transverse passage 130 can bear repeated loads in long-term use and are not prone to fatigue damage. The Q390GJD steel has excellent performance, but its cost is relatively reasonable, has good performance-price ratio, and is conducive to reducing the overall engineering cost.

[0045] It is easy to understand that, based on one or more embodiments provided in the present application, other embodiments can be obtained by combining, splitting, recombining, etc. of the embodiments of the present application, and these embodiments do not exceed the protection scope of the present application.

[0046] The above describes the present application and its embodiments in a schematic manner, and the description is not restrictive, and the embodiments shown are only part of the embodiments of the present application, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by the present application, without departing from the creative purpose of the present application, similar structural modes and embodiments can be designed without creativity, which should belong to the protection scope of the present application.

Claims

1. An adjustable transverse safety passage on the surface of a double-span box girder, characterized in that: It includes two movable staircases (120) set opposite each other on the top surface of the double box girder (110), and a transverse passage (130) connecting the two staircases (120) with adjustable distance between them.

2. The adjustable double-span box girder transverse safety passage according to claim 1, characterized in that: The transverse passage (130) includes a left connecting part (210) and a right connecting part (220) respectively connected to the staircase (120). The left connecting part (210) includes two parallel first railings (310). Each first railing (310) includes two telescopic inner rods (311) and a first fixed rod (312) arranged from top to bottom on the same vertical plane. Two first vertical rods (313) are vertically arranged between the two telescopic inner rods (311) and the first fixed rod (312). The right connecting part (220) The first fixed rod (312) includes two parallel second guardrails (410). The second guardrail (410) includes two telescopic outer rods (411) and a second fixed rod (412) arranged from top to bottom on the same vertical plane and both hollow inside. Two second vertical rods (413) are vertically arranged between the two telescopic outer rods (411) and the second fixed rod (412). The first fixed rod (312) can extend into the second fixed rod (412) to cooperate. The telescopic inner rod (311) can extend into the telescopic outer rod (411) to cooperate.

3. The adjustable double-span box girder transverse safety passage according to claim 2, characterized in that: A first traveling surface (320) is horizontally connected between the two first fixed rods (312), and a second traveling surface (420) is horizontally connected between the two second fixed rods (412). The first traveling surface (320) and the second traveling surface (420) are staggered vertically, and the first traveling surface (320) is located below the second traveling surface (420).

4. The adjustable double-span box girder transverse safety passage according to claim 2, characterized in that: The first fixed rod (312) is provided with multiple first through holes (510), and the second fixed rod (412) and the second traveling surface (420) are provided with a second through hole (610) that passes through the second fixed rod (412) and the second traveling surface (420). The second fixed rod (412) and the second traveling surface (420) are also provided with a bolt (230) that passes through a certain first through hole (510) and second through hole (610) and fixes the first fixed rod (312) and the second fixed rod (412).

5. The adjustable double-span box girder transverse safety passage according to claim 2, characterized in that: Both second fixing rods (412) have insertion interfaces (620) on the side close to the second traveling surface (420).

6. The adjustable double-span box girder transverse safety passage according to claim 2, characterized in that: The first fixing rod (312) includes a limiting rod (520) and a positioning rod (530) arranged coaxially.

7. The adjustable double-span box girder transverse safety passage according to claim 1, characterized in that: The bottom of the staircases (120) on the left and right sides of the top surface of the double box girder (110) is equipped with universal wheels (710).

8. The adjustable double-span box girder transverse safety passage according to claim 1, characterized in that: The staircase (120) and the transverse passageway (130) are made of Q390GJD steel.

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