Fabricated bridge girder box structure

Abstract

The utility model relates to the technical field of bridge girder boxes, in particular to an assembly type bridge girder box structure which comprises a bridge girder box body, connecting seats are fixedly connected to the bottom and the top of the inner wall of the bridge girder box body, and the inner walls of the connecting seats are in threaded connection with positioning plates through positioning screws. The positioning plate located on the front side is fixedly connected with a front baffle, the positioning plate located on the rear side is fixedly connected with a rear baffle, a vertical plate is fixedly installed on the front side, close to the middle of the front baffle, of the front baffle, the inner wall of the vertical plate is fixedly connected with a shock absorber, and one end of the shock absorber is fixedly connected with an inserting and fixing groove plate. According to the structure, the front baffle and the rear baffle with different structures are arranged in the assembly type bridge girder box, the structures at different positions are inserted to assist in alignment and position finding, the connecting structure in the middle is used for accurately checking the positioning effect, and the rapid position finding and accurate positioning efficiency of the bridge girder box is indirectly improved.

Description

Technical Field

[0001] The utility model relates to an assembled bridge beam box structure and belongs to the technical field of bridge beam boxes. Background Art

[0002] In the field of bridge erection, box girders are mainly hollow beams, which are divided into reinforced concrete box girders and steel structure box girders. The box girders can be prefabricated in an independent site, and then they can be erected in combination with a bridge erection machine after the lower part of the project is completed, which can speed up the project progress and save construction time.

[0003] For example, the patent publication number CN202322325022.2 discloses an assembled bridge beam box structure, which includes a bottom plate, a top plate and a web plate, wherein the bottom plate is detachably connected to the web plate, the web plate is fixedly provided with an ear plate, the top plate is fixedly provided with an insert block, the ear plate is provided with a slot for inserting the insert block, the insert block is plugged into the slot, and the insert block is provided with a position-limiting member for limiting the position of the insert block;

[0004] Since the positioning effect of the above-mentioned prefabricated bridge beam box is limited, it is necessary for the staff to frequently align and check the wires up and down and left and right, which indirectly reduces the continuous installation efficiency of the entire prefabricated bridge beam box and brings certain adverse effects to actual use, so improvements are needed. Utility Model Content

[0005] The purpose of the utility model is to provide an assembled bridge beam box structure. The utility model provides two front and rear baffles with different structures inside the assembled bridge beam box, and performs auxiliary alignment and positioning through plug-in of structures at different positions, and performs precise proofreading and positioning effect through the connection structure at the middle, thereby indirectly improving the efficiency of rapid positioning and precise positioning of the bridge beam box, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The top and the bottom of the inner wall of the bridge beam box body are fixedly connected to a connecting seat, the inner wall of the connecting seat is threadedly connected to a positioning plate by a positioning screw, the positioning plate located on the front side is fixedly connected to a front baffle, and the positioning plate located on the rear side is fixedly connected to a rear baffle, the front baffle is fixedly installed with a vertical plate on the front side near the middle thereof, the inner wall of the vertical plate is fixedly connected to a shock absorber, one end of the shock absorber is fixedly connected to a plug-in slot plate, the surface of the rear side of the rear baffle is fixedly connected to an anti-slip plug plate, the surface of the anti-slip plug plate and the inner wall of the plug-in slot plate are magnetically connected, the side of the front baffle is provided with a groove, the bottom of the inner wall of the groove is fixedly connected to a constraint sleeve, and the rear side of the rear baffle near its side is connected to an assisting positioning rod by a screw, and the surface of the assisting positioning rod abuts against the inner wall of the constraint sleeve.

[0008] Furthermore, a guide plate is fixedly connected to the side surface of the insertion slot plate, a guide groove is opened on the inner wall of the vertical plate, and the inner wall of the guide groove is slidably connected to the surface of the guide plate.

[0009] Furthermore, the number of the vertical plates is two, and the two vertical plates are connected to the front baffle in upper and lower positions.

[0010] Furthermore, a center alignment sleeve is fixedly connected to the surface in the middle of the two vertical plates, and a center alignment rod is fixedly connected to the surface of the rear baffle. The surface of the center alignment rod and the inner wall of the center alignment sleeve are non-slip connected and adapted.

[0011] Furthermore, the bottom of the constraint sleeve is a fixed metal seat, the top of the fixed metal seat is fixedly connected with a memory metal plate, and a circular groove is opened on the top of the fixed metal seat.

[0012] Furthermore, the front side of the assisting positioning rod is a spring telescopic rod, one end of which is fixedly connected to a circular metal plate with a round rod, and the round rod on the circular metal plate abuts against the inner wall of the constraint sleeve.

[0013] The beneficial effects of the utility model are:

[0014] In the utility model, the round rod on the circular metal plate in the assisting positioning rod is pressed down on the memory metal plate of the constraint clamping sleeve by the rear baffle plate, and the round rod after being pressed down can enter the circular groove of the fixed metal seat through the memory metal plate, and the circular metal plate can be fitted and abutted on the constraint clamping sleeve, thereby completing the basic positioning and abutment of the front and rear bridge beam box bodies;

[0015] In the utility model, the anti-skid plug plate is inserted into the inner wall of the fixed slot plate for clamping. Since the upper and lower ends of the fixed slot plate are connected with shock absorbers, a small shake can be performed to automatically assist in positioning with elastic force. The setting of the guide plate and the guide slot ensures the smooth anti-tilting lifting and lowering operation of the fixed slot plate, which can quickly assist the alignment center rod on the rear baffle to be inserted into the alignment center sleeve for fixing the center main position, so that the bridge beam box body can be quickly positioned and accurately positioned. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the specific embodiments of the present invention and do not constitute a limitation to the present invention.

[0017] Figure 1 It is a schematic diagram of the overall structure of an assembled bridge beam box structure of the utility model;

[0018] Figure 2 It is a front view of an assembled bridge beam box structure of the utility model;

[0019] Figure 3 It is a back view of a rear baffle in an assembled bridge beam box structure of the utility model;

[0020] Figure 4 It is a top view of a restraining sleeve in an assembled bridge beam box structure of the utility model;

[0021] Figure 5 This is an enlarged view of point A of an assembled bridge beam box structure of the utility model;

[0022] Figure 6 This is an enlarged view of point B of an assembled bridge beam box structure of the utility model;

[0023] Numbers in the figure: 1. Bridge beam box body; 2. Connecting seat; 3. Positioning plate; 4. Front baffle; 5. Rear baffle; 6. Vertical plate; 7. Shock absorber; 8. Plug-in slot plate; 9. Anti-slip plug-in plate; 10. Constraint sleeve; 11. Assisting positioning rod; 12. Guide plate; 13. Guide groove; 14. Alignment center sleeve; 15. Alignment center rod; 16. Fixed metal seat; 17. Memory metal plate; 18. Spring telescopic rod; 19. Round metal plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1 Please refer to Figure 1-Figure 6 , the utility model provides a technical solution:

[0026] A prefabricated bridge beam box structure comprises a bridge beam box body 1, the bottom and top of the inner wall of the bridge beam box body 1 are fixedly connected to a connecting seat 2, the inner wall of the connecting seat 2 is threadedly connected to a positioning plate 3 by a positioning screw, the positioning plate 3 located on the front side is fixedly connected to a front baffle 4, and the positioning plate 3 located on the rear side is fixedly connected to a rear baffle 5, the front side of the front baffle 4 near the middle thereof is fixedly installed with a vertical plate 6, the inner wall of the vertical plate 6 is fixedly connected to a shock absorber 7, one end of the shock absorber 7 is fixedly connected to an insertion groove plate 8, the surface of the rear side of the rear baffle 5 is fixedly connected to an anti-skid plug plate 9, the surface of the anti-skid plug plate 9 and the inner wall of the insertion groove plate 8 are magnetically connected, a groove is provided on the side of the front baffle 4, a constraint sleeve 10 is fixedly connected to the bottom of the inner wall of the groove, and an assisting positioning rod 11 is connected to the rear side of the rear baffle 5 near its side by a screw, and the surface of the assisting positioning rod 11 abuts against the inner wall of the constraint sleeve 10.

[0027] Specifically, Figure 1-Figure 6 As shown, a guide plate 12 is fixedly connected to the side of the insertion slot plate 8, and a guide groove 13 is opened on the inner wall of the vertical plate 6. The inner wall of the guide groove 13 and the surface of the guide plate 12 are slidably connected. Through the arrangement of the guide plate 12 and the guide groove 13, the smooth anti-tilt lifting and lowering operation of the insertion slot plate 8 is guaranteed.

[0028] Specifically, Figure 1-Figure 6 As shown, there are two upright boards 6, and the two upright boards 6 are connected to the front baffle 4 in an upper and lower position. A center alignment sleeve 14 is fixedly connected to the surface in the middle of the two upright boards 6, and a center alignment rod 15 is fixedly connected to the surface of the rear baffle 5. The surface of the center alignment rod 15 and the inner wall of the center alignment sleeve 14 are non-slip and fit. The center alignment rod 15 on the rear baffle 5 can be inserted into the center alignment sleeve 14 to fix the center main position, and the two upright boards 6 in the upper and lower positions can form a coordinated elastic adjustment environment for lifting.

[0029] Example 2 Please refer to Figure 1-Figure 6The difference between this embodiment and the first embodiment is that the bottom of the constraint sleeve 10 is a fixed metal seat 16, the top of the fixed metal seat 16 is fixedly connected with a memory metal plate 17, and a circular groove is provided on the top of the fixed metal seat 16. The front side of the auxiliary positioning rod 11 is a spring telescopic rod 18, one end of which is fixedly connected with a circular metal plate 19 with a round rod, and the round rod on the circular metal plate 19 abuts against the inner wall of the constraint sleeve 10, and the round rod on the circular metal plate 19 in the auxiliary positioning rod 11 on the rear baffle 5 is abutted and pressed down on the memory metal plate 17 of the constraint sleeve 10, and the round rod after being pressed down can enter the circular groove of the fixed metal seat 16 through the memory metal plate 17, and the circular metal plate 19 can be fitted and abutted on the constraint sleeve 10.

[0030] Working principle of the utility model: when in use, due to the large volume of the entire bridge, it is impossible to directly prefabricate and assemble the entire bridge, and it is necessary to carry out segmented connection and straightening of the box beam in the bridge. The positioning screw between the connecting seat 2 and the positioning plate 3 can be used to connect and lock the front baffle 4 and the rear baffle 5, and the section of the bridge beam box body 1 to be installed is roughly aligned with the installed section of the bridge beam box body 1, and the round rod on the circular metal plate 19 in the auxiliary positioning rod 11 on the rear baffle 5 can be used to press down on the memory metal plate 17 of the constraint sleeve 10, and the round rod after being pressed can enter the circular groove of the fixed metal seat 16 through the memory metal plate 17, and the circular metal plate 19 can be moved on the constraint sleeve 10 The two bridge beam box bodies 1 are fitted and abutted to complete the basic positioning and abutment of the front and rear bridge beam box bodies 1. Subsequently, the uninstalled bridge beam box body 1 is pushed close to the position of the installed bridge beam box body 1, and the anti-skid plug plate 9 is inserted into the inner wall of the insertion groove plate 8 for clamping. Since the upper and lower ends of the insertion groove plate 8 are connected with shock absorbers 7, a small amplitude shaking automatic elastic force assistance positioning can be performed. Through the setting of the guide plate 12 and the guide groove 13, the smooth anti-tilt lifting and lowering operation of the insertion groove plate 8 is guaranteed, and then the alignment center rod 15 on the rear baffle 5 can be quickly assisted to be inserted into the alignment center sleeve 14 for fixing the center main position, which indirectly improves the efficiency of rapid positioning and precise positioning of the bridge beam box body 1.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An assembled bridge beam box structure, comprising a bridge beam box body (1), characterized in that: The bottom and top of the inner wall of the bridge beam box body (1) are fixedly connected to a connection seat (2); the inner wall of the connection seat (2) is threadedly connected to a positioning plate (3) via a positioning screw; the positioning plate (3) located at the front side is fixedly connected to a front baffle (4); the positioning plate (3) located at the rear side is fixedly connected to a rear baffle (5); a vertical plate (6) is fixedly installed on the front side of the front baffle (4) near the middle thereof; the inner wall of the vertical plate (6) is fixedly connected to a shock absorber (7); one end of the shock absorber (7) is fixedly connected to the front baffle (4); A fixed slot plate (8) is fixedly connected, a non-slip insert plate (9) is fixedly connected to the surface of the rear side of the rear baffle (5), the surface of the non-slip insert plate (9) is magnetically snap-fitted to the inner wall of the fixed slot plate (8), a groove is provided on the side of the front baffle (4), a restraining sleeve (10) is fixedly connected to the bottom of the inner wall of the groove, an assisting positioning rod (11) is connected to the rear side of the rear baffle (5) near its side through a screw, and the surface of the assisting positioning rod (11) is in contact with the inner wall of the restraining sleeve (10).

2. The assembled bridge beam box structure according to claim 1 is characterized in that: A guide plate (12) is fixedly connected to the side of the insertion slot plate (8), a guide slot (13) is provided on the inner wall of the vertical plate (6), and the inner wall of the guide slot (13) is slidably connected to the surface of the guide plate (12).

3. The assembled bridge beam box structure according to claim 1 is characterized in that: The number of the vertical plates (6) is two, and the two vertical plates (6) are connected to the front baffle (4) in an upper and lower position.

4. The assembled bridge beam box structure according to claim 3 is characterized in that: A center alignment sleeve (14) is fixedly connected to the surface in the middle of the two vertical plates (6), and a center alignment rod (15) is fixedly connected to the surface of the rear baffle (5), and the surface of the center alignment rod (15) and the inner wall of the center alignment sleeve (14) are non-slip and fit together.

5. The assembled bridge beam box structure according to claim 1 is characterized in that: The bottom of the restraining sleeve (10) is a fixed metal seat (16), the top of the fixed metal seat (16) is fixedly connected with a memory metal plate (17), and the top of the fixed metal seat (16) is provided with a circular groove.

6. The assembled bridge beam box structure according to claim 1 is characterized in that: The front side of the assisting positioning rod (11) is a spring telescopic rod (18), one end of which is fixedly connected to a circular metal plate (19) with a round rod, and the round rod on the circular metal plate (19) abuts against the inner wall of the restraining sleeve (10).

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