Sliding device for erecting box girder

Abstract

The utility model provides a sliding device for erecting a box girder, which comprises a base in the shape of a transverse long strip, a plurality of bayonet groups are arranged on the side surface of the base at intervals along the length direction of the base, and each bayonet group comprises two bayonets respectively arranged on two sides of the base; the sliding seat can be arranged on the base in a sliding mode in the length direction of the base, and the sliding seat is used for bearing the box girder; the positioning seat is arranged on the base, the two sides of the positioning seat extend downwards to form clamping feet respectively, and the two clamping feet of the positioning seat can be inserted into the two bayonets of any bayonet set respectively; and the jack is arranged between the sliding seat and the positioning seat and is used for pushing the sliding seat to slide along the base. The sliding device is simple and reliable in structure, low in equipment cost, small in occupied space, convenient to machine, manufacture and use and beneficial to completing erecting operation of the box girder in the limited space.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a sliding device for erecting a box beam. Background Art

[0002] With the rapid development of municipal and highway engineering, prefabricated small box girders are more and more widely used in medium-span bridges, and their proportion in bridge construction is becoming more and more important. The erection method directly affects the quality and cost of bridge construction. There are many erection methods for prefabricated small box girders. Before construction, it is necessary to select a suitable location to set up a prefabrication site based on the actual situation on site, and determine an economical and reasonable erection method based on the on-site terrain. The more commonly used erection methods are: double-guide beam bridge erection machine, pier-crossing gantry crane, simple single-guide beam erection, herringbone pole erection method, crane erection, etc. These erection methods all require a large construction space nearby for the operation of related equipment. In the case of existing structures such as nearby high-voltage lines, the construction space is small, and these existing erection methods are difficult to operate. Utility Model Content

[0003] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a sliding device for erecting a box girder that helps to complete the erection operation in a confined space.

[0004] In order to achieve the above purpose, the technical solution provided by the utility model is:

[0005] A sliding device for erecting a box girder, comprising:

[0006] The base is in the shape of a horizontal strip, and a plurality of bayonet groups are arranged at intervals along the length direction of the base, each bayonet group includes two bayonet groups respectively arranged on both sides of the base;

[0007] A sliding seat is arranged on the base and can slide along the length direction of the base, and the sliding seat is used to support the box beam;

[0008] A positioning seat is provided on the base, and a foot is extended downward from each side of the positioning seat, and the two feet of the positioning seat can be respectively inserted into the two bayonet holes of any bayonet hole group;

[0009] The jack is arranged between the sliding seat and the positioning seat, and is used to push the sliding seat to slide along the base.

[0010] Preferably, it further comprises a plurality of pads, each of which is used to be arranged between the positioning seat and the jack and can be stacked on top of each other.

[0011] Preferably, the top of the base is provided with a slide groove extending along the length direction thereof, and the bottom of the sliding seat is provided with a sliding foot adapted to the slide groove and slidably inserted into the slide groove.

[0012] Preferably, the jack is adapted to the chute and can be placed in the chute.

[0013] Preferably, the pad is adapted to the chute and can be placed in the chute.

[0014] Preferably, the base is a side-mounted I-beam.

[0015] Preferably, a plurality of clamping blocks are welded to the side surface of the base, and the clamping opening is formed by two adjacent clamping blocks.

[0016] Preferably, a vertical top plate is provided on one end of the sliding seat facing the jack, and the top plate is used to abut against the jack.

[0017] Preferably, a roller is provided at the bottom of the sliding seat, and the sliding seat is slidably arranged on the base via the roller.

[0018] The beneficial effects of the present invention are as follows: the sliding device can carry the box beam on the sliding seat during construction, the positioning seat can be positioned on the base by the cooperation of its clamping feet and the bayonet, the sliding seat can be pushed to move by the jack, and by inserting the clamping feet of the positioning seat into different bayonet groups, the positioning seat can be positioned at different positions of the base, thereby gradually pushing the sliding seat to slide along the base, and accordingly, the box beam can be gradually moved to the predetermined installation position, the structure is simple and reliable, the equipment cost is low, the space occupied is small, it is convenient to process, manufacture and use, and it is helpful to complete the erection of the box beam in a confined space. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0020] Figure 1 This is a schematic diagram of the main structure of a preferred embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of the top view of the preferred embodiment of the utility model;

[0022] Figure 3 It is a structural schematic diagram of the positioning seat in the preferred embodiment of the utility model.

[0023] Among them, the reference numerals in the figures are:

[0024] 10. Base; 11. Bayonet; 12. Block; 20. Sliding seat; 21. Top plate; 30. Positioning seat; 31. Clamping foot; 40. Jack; 50. Pad; 60. Box girder. DETAILED DESCRIPTION

[0025] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0026] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0027] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0028] Reference Figures 1 to 3 , a preferred embodiment of the present utility model, a sliding device for erecting a box beam, comprising: a base 10, which is in the shape of a transverse long strip, and a plurality of bayonet groups are arranged at intervals on the side of the base 10 along its length direction, and each bayonet group includes two bayonet holes 11 respectively arranged on both sides of the base 10; a sliding seat 20, which can be slidably arranged on the base 10 along the length direction of the base 10, and the sliding seat 20 is used to carry the box beam 60; a positioning seat 30, which is arranged on the base 10, and has a card foot 31 extending downward on both sides of the positioning seat 30, and the two card feet 31 of the positioning seat 30 can be respectively inserted into the two bayonet holes 11 of any bayonet group; a jack 40, which is arranged between the sliding seat 20 and the positioning seat 30, and is used to push the sliding seat 20 to slide along the base 10. During construction, this sliding device can carry the box beam 60 on the sliding seat 20, and the positioning seat 30 can be positioned on the base 10 by the cooperation of its clamping foot 31 and the bayonet 11. The sliding seat 20 can be pushed to move by the jack 40, and by inserting the clamping foot 31 of the positioning seat 30 into different bayonet groups, the positioning seat 30 can be positioned at different positions of the base 10, thereby gradually pushing the sliding seat 20 to slide along the base 10, and accordingly, the box beam 60 can be gradually moved to the predetermined installation position. The structure is simple and reliable, the equipment cost is low, the space occupied is small, and it is convenient to process, manufacture and use, which helps to complete the erection operation of the box beam 60 in a confined space.

[0029] As a preferred embodiment of the present invention, it may also have the following additional technical features:

[0030] This embodiment also includes a plurality of pads 50, each pad 50 is used to be placed between the positioning seat 30 and the jack 40 and can be stacked on top of each other, thereby adjusting the distance that the jack 40 pushes the sliding seat 20 according to actual needs, making it more flexible and convenient to use.

[0031] In this embodiment, the top of the base 10 is provided with a sliding groove extending along its length direction, and the bottom of the sliding seat 20 is provided with a sliding foot that is adapted to the sliding groove and slidably inserted in the sliding groove. The cooperation between the sliding angle and the sliding groove can limit the sliding direction of the sliding seat 20, prevent the sliding seat 20 from being laterally offset and dislocated, and is safer and more reliable.

[0032] In this embodiment, the jack 40 is adapted to the slide groove and can be placed in the slide groove, thereby limiting the position of the jack 40 and ensuring that the force direction of the jack 40 is parallel to the length direction of the base 10, which is safer and more reliable.

[0033] In this embodiment, the pad 50 is adapted to the slide groove and can be placed in the slide groove, which can limit the pad 50 and prevent the pad 50 from sliding sideways during operation, making it safer and more reliable.

[0034] In this embodiment, the base 10 is a side-mounted I-beam, and its structural opening forms the above-mentioned slide groove, which has a simple structure, low cost, and is easy to obtain materials at the construction site.

[0035] In this embodiment, a plurality of clamping blocks 12 are welded to the side surface of the base 10 , and the clamping opening 11 is formed by two adjacent clamping blocks 12 , which is convenient for processing and manufacturing.

[0036] In this embodiment, a vertical top plate 21 is provided at one end of the sliding seat 20 facing the jack 40. The top plate 21 is used to abut against the jack 40, which helps to ensure the reliable abutment between the jack 40 and the sliding seat 20 and prevent the jack 40 and the sliding seat 20 from being misaligned during operation and causing safety accidents.

[0037] In this embodiment, rollers are provided at the bottom of the sliding seat 20 , and the sliding seat 20 is slidably disposed on the base 10 via the rollers, which helps to reduce the resistance to the movement of the sliding seat 20 .

[0038] In this embodiment, the sliding seat 20, the positioning seat 30 and the pad 50 are all made of steel plates, and the clamping block 12 is a steel block welded to the side of the base 10, which has a strong structure and is easy to obtain materials and process and manufacture.

[0039] Under the premise that no conflict occurs, those skilled in the art may freely combine and superimpose the above-mentioned additional technical features.

[0040] The above description is only a preferred embodiment of the present invention. Any technical solution that achieves the purpose of the present invention by substantially the same means shall fall within the scope of protection of the present invention.

Claims

1. A sliding device for erecting a box girder, characterized in that: include: The base (10) is in the shape of a transverse strip, and a plurality of bayonet groups are arranged at intervals along the length direction of the side surface of the base (10), and each bayonet group includes two bayonet ports (11) respectively arranged on both sides of the base (10); A sliding seat (20) is arranged on the base (10) so as to be slidable along the length direction of the base (10), and the sliding seat (20) is used to support the box beam (60); A positioning seat (30) is arranged on the base (10), and a clamping foot (31) is respectively extended downward on both sides of the positioning seat (30), and the two clamping feet (31) of the positioning seat (30) can be respectively inserted into the two clamping holes (11) of any one of the clamping hole groups; A jack (40) is arranged between the sliding seat (20) and the positioning seat (30) and is used to push the sliding seat (20) to slide along the base (10).

2. A sliding device for erecting a box beam according to claim 1, characterized in that: It also includes a plurality of pads (50), each of which is used to be cushioned between the positioning seat (30) and the jack (40) and can be stacked on top of each other.

3. A sliding device for erecting a box girder according to claim 2, characterized in that: The top of the base (10) is provided with a sliding groove extending along its length direction, and the bottom of the sliding seat (20) is provided with a sliding foot adapted to the sliding groove and slidably inserted in the sliding groove.

4. A sliding device for erecting a box beam according to claim 3, characterized in that: The jack (40) is adapted to the chute and can be placed in the chute.

5. The sliding device for erecting a box beam according to claim 3, characterized in that: The pad (50) is adapted to the chute and can be placed in the chute.

6. A sliding device for erecting a box beam according to claim 3, characterized in that: The base (10) is a side-mounted I-beam.

7. A sliding device for erecting a box beam according to claim 6, characterized in that: A plurality of clamping blocks (12) are welded to the side surface of the base (10), and the clamping opening (11) is formed by two adjacent clamping blocks (12).

8. The sliding device for erecting a box beam according to claim 1, characterized in that: A vertical top plate (21) is provided at one end of the sliding seat (20) facing the jack (40), and the top plate (21) is used to abut against the jack (40).

9. The sliding device for erecting a box beam according to claim 1, characterized in that: A roller is provided at the bottom of the sliding seat (20), and the sliding seat (20) is slidably arranged on the base (10) via the roller.

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