CN217517343U - Large-span steel-concrete combined box girder structure - Google Patents

Abstract

The application discloses long stride footpath steel and concrete combination case beam structure belongs to case beam structure technical field, including the inside case beam body of seting up well cavity, the fixed plate that is equipped with in the downside chamber wall of well cavity, the vertical guide plate of the upper end middle part fixedly connected with of fixed plate, the leakage groove has all been seted up to the left and right sides that the upper end of fixed plate is located the guide plate, the leak hunting has all been seted up between the tank bottom portion of two leakage grooves and the left and right sides outer wall lower extreme of case beam body, the inside fixedly connected with installing frame of downside opening of two leak hunting holes, one side department that the guide plate was kept away from to two installing frames all is provided with the adjustable frame, the equal fixedly connected with filter screen in inside of two adjustable frames. The water draining device can facilitate the drainage of water permeating into the box girder, and can quickly dry the box girder, thereby ensuring the structural stability of the box girder and improving the service life and the safety; the filter screen is convenient to clean when being blocked.

Description

Large-span steel-concrete combined box girder structure

Technical Field

The application relates to the technical field of box girder structures, in particular to a long-span steel-concrete combined box girder structure.

Background

The box beam is one of the middle beams in bridge engineering, the inner part of the box beam is hollow, and flanges are arranged on two sides of the upper part of the box beam and are similar to a box, so that the box beam is named. Single boxes, multiple boxes, etc.

In the process of implementing the application, the inventor finds that at least the following problems exist in the technology: the case roof beam is after using for a long time, and the structural strength of case roof beam can the variation gradually, and the condition of infiltration appears very easily, if the rainwater gets into inside the case roof beam from the infiltration of case roof beam upper surface, and inside the case roof beam is comparatively confined space, then the rainwater can stay for a long time inside the case roof beam for inside being in long-term moist state of case roof beam, and then destroys the structural stability of case roof beam more.

SUMMERY OF THE UTILITY MODEL

The application provides a long span steel reinforced concrete combination box girder structure to the meeting that proposes in solving above-mentioned background art stops for a long time inside the box girder, makes the inside state that is in for a long time moist of box girder, and then influences the structural stability's of box girder problem more.

In order to achieve the purpose, the following technical scheme is adopted in the application:

a large-span steel-concrete combined box girder structure comprises a box girder body, wherein a hollow cavity is formed in the box girder body, a fixed plate is fixedly arranged on the lower side cavity wall of the hollow cavity, a vertical guide plate is fixedly connected to the middle part of the upper end of the fixed plate, leakage grooves are formed in the upper end of the fixed plate and are positioned on the left side and the right side of the guide plate, leakage holes are formed between the groove bottoms of the two leakage grooves and the lower ends of the outer walls of the left side and the right side of the box girder body, mounting frames are fixedly connected to the inner parts of the lower side openings of the two leakage holes, movable frames are arranged on the two mounting frames at positions far away from the guide plate, filter screens are fixedly connected to the inner parts of the two movable frames, circular grooves are formed in the outer walls of the upper side and the lower side of the two movable frames, slide holes are formed in the groove walls of one side of the circular grooves close to the guide plate, and locking mechanisms are fixedly arranged between the circular grooves and the corresponding slide holes, the inside of guide plate has been seted up and has been placed the chamber, the upside chamber wall fixation who places the chamber is equipped with the motor, the equal fixed connection in position department of corresponding of the left and right sides wall of guide plate and motor has horizontally bar shaped plate, two the one end that the motor was kept away from to the bar shaped plate all with well cavity chamber wall fixed connection, two the upper end middle part of bar shaped plate all rotates through antifriction bearing and is connected with the pivot, two the equal fixedly connected with flabellum in upper end of pivot, two the lower extreme of pivot all runs through to the downside of bar shaped plate, two fixed drive mechanism that is equipped with between the lower extreme of pivot and the axial wall of the output shaft of motor.

As a preferred embodiment, locking mechanism includes metal pole, spacing axle, kelly and magnet, the metal pole slides and sets up the inside at the circular slot, the one end that the filter screen was kept away from to the metal pole extends to the outside of circular slot, the bar hole has been seted up to the preceding side lever wall of metal pole, one side department of filter screen is kept away from in the inside in bar hole to spacing axle longitudinal sliding setting, the both ends of spacing axle all extend to the outside in bar hole and with the cell wall fixed connection of circular slot, the kelly slides and sets up the inside at the slide opening, the kelly is close to the one end of guide plate and extends to the outside of slide opening and with installing frame fixed connection, magnet and kelly are located the one end fixed connection in the slide opening, magnet and the mutual actuation of the pole wall of metal pole.

In a preferred embodiment, a pulling block is fixedly connected to one end of the metal rod, which is located outside the circular groove.

As a preferred embodiment, the filter screen is a stainless steel screen.

As a preferred embodiment, the transmission mechanism comprises two first chain wheels and two second chain wheels, the two first chain wheels are respectively and fixedly connected with the lower ends of the two rotating shafts, the two second chain wheels are fixedly sleeved with the output shaft of the motor and the corresponding positions of the two first chain wheels, the two first chain wheels and the corresponding second chain wheels are connected through chain transmission, and through holes matched with the two chains are formed in the wall of the left side cavity and the right side cavity of the placing cavity.

As a preferred embodiment, the inside of the hollow cavity is fixedly connected with a drying box above the right fan blades, and a plurality of uniformly distributed heating wires are fixedly arranged inside the drying box.

In a preferred embodiment, the rotation directions of the two fan blades are opposite.

In a preferred embodiment, both of the leakage grooves are tapered grooves.

The beneficial effect of this application:

1. the large-span steel-concrete combined box girder structure can facilitate the discharge of water permeating into the box girder through the motor, the transmission mechanism, the rotating shaft, the strip-shaped plate, the guide plate, the drying box and the heating wire, and can quickly dry the interior of the box girder, thereby improving the structural stability of the box girder and prolonging the service life and the safety;

2. this long-span steel reinforced concrete combination box girder construction is convenient for clear up filter screen when blockking up through locking mechanism, filter screen, movable frame and the installing frame that is equipped with.

Drawings

FIG. 1 is a schematic structural diagram of the present application;

FIG. 2 is a schematic structural view of the mounting frame and the movable frame in FIG. 1;

FIG. 3 is an enlarged view of portion A of FIG. 1;

fig. 4 is an enlarged schematic view of a portion B of fig. 2.

The reference numbers in the figures: 1. installing a frame; 2. a leak hole; 3. a fixing plate; 4. a box girder body; 5. a drying box; 6. heating wires; 7. a baffle; 8. a hollow cavity; 9. a filter screen; 10. a movable frame; 11. a motor; 12. a second sprocket; 13. a chain; 14. a first sprocket; 15. a rotating shaft; 16. a fan blade; 17. a strip plate; 18. a limiting shaft; 19. a metal rod; 20. a clamping rod; 21. and a magnet.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

Referring to fig. 1 and 2, a long span steel-concrete combined box girder structure comprises a box girder body 4 with a hollow cavity 8 arranged inside, a fixed plate 3 is fixedly arranged on the lower side cavity wall of the hollow cavity 8, and a vertical guide plate 7 is fixedly connected to the middle of the upper end of the fixed plate 3. The guide plate 7 can facilitate the air flow in the hollow cavity 8 to be discharged, and the ventilation effect is improved. The upper end of the fixed plate 3 is positioned at the left side and the right side of the guide plate 7 and is provided with leakage grooves, and the two leakage grooves are conical grooves. The tapered groove may facilitate the drainage of water that has penetrated into the hollow cavity 8 through the leakage groove. Leakage hole 2 has all been seted up between the tank bottom portion of two leakage grooves and the left and right sides outer wall lower extreme of case roof beam body 4 and has leaked hole 2, two inside fixedly connected with installing frames 1 of leaking hole 2, and one side department that guide plate 7 was kept away from to two installing frames 1 all is provided with movable frame 10, the equal fixedly connected with filter screen 9 in inside of two movable frames 10. The filter screen 9 is a stainless steel wire mesh. The stainless steel wire mesh is not easy to rust, and the service life is prolonged. The circular grooves are formed in the outer walls of the upper side and the lower side of the two movable frames 10, and the groove walls of the circular grooves, which are close to one side of the guide plate 7, are provided with sliding holes.

Referring to fig. 2 and 4, a plurality of circular slots and corresponding between the slide opening all fixed locking mechanism that is equipped with, locking mechanism includes metal pole 19, spacing axle 18, kelly 20 and magnet 21, metal pole 19 slides and sets up the inside at the circular slot, the one end that filter screen 9 was kept away from to metal pole 19 extends to the outside of circular slot, the bar hole has been seted up to the front side lever wall of metal pole 19, one side department that filter screen 9 was kept away from in the inside in bar hole to spacing 18 longitudinal sliding setting of axle, spacing 18 both ends all extend to the outside in bar hole and with the cell wall fixed connection of circular slot. The limiting shaft 18 can facilitate limiting of the metal rod 19. The clamping rod 20 is arranged inside the sliding hole in a sliding mode, one end, close to the guide plate 7, of the clamping rod 20 extends to the outside of the sliding hole and is fixedly connected with the mounting frame 1, the magnet 21 and one end, located in the sliding hole, of the clamping rod 20 are fixedly connected, and the magnet 21 and the rod wall of the metal rod 19 are attracted with each other. The locking mechanism is convenient for dismounting the movable frame 10 when cleaning the filter screen 9. One end of the metal rod 19, which is positioned outside the circular groove, is fixedly connected with a pulling block, and the pulling block is convenient for pulling the metal rod 19.

Referring to fig. 1 and 3, the inside of the guide plate 7 is provided with a placing cavity, the upper side cavity wall of the placing cavity is fixedly provided with a motor 11, and the motor 11 is electrically connected with an external power supply through a control switch. The equal fixedly connected in department of the left and right sides wall of guide plate 7 and motor 11's position correspondence has horizontally bar shaped plate 17, and the one end that motor 11 was kept away from to two bar shaped plate 17 all with well cavity 8's chamber wall fixed connection, and the upper end middle part of two bar shaped plate 17 all rotates through antifriction bearing and is connected with pivot 15, the equal fixedly connected in fan blade 16 in upper end of two pivot 15. The rotation directions of the two fan blades 16 are opposite. The lower ends of the two rotating shafts 15 penetrate through the lower side of the strip-shaped plate 17. The inside of well cavity 8 is located the top of right side flabellum 16 and locates fixedly connected with stoving case 5, and the inside of stoving case 5 is fixed and is equipped with a plurality of evenly distributed's heater strip 6. The heating wire 6 is matched with the rotating fan blades 16 to accelerate the drying of the hollow cavity 8.

Referring to fig. 1 and 3, a transmission mechanism is fixedly arranged between the lower ends of the two rotating shafts 15 and the shaft wall of the output shaft of the motor 11, the transmission mechanism comprises two first chain wheels 14 and two second chain wheels 12, the two first chain wheels 14 are respectively fixedly connected with the lower ends of the two rotating shafts 15, the output shaft of the two second chain wheels 12 and the output shaft of the motor 11 are fixedly sleeved with the corresponding positions of the two first chain wheels 14, the two first chain wheels 14 and the corresponding second chain wheels 12 are connected through chains 13 in a transmission manner, and through holes matched with the two chains 13 are formed in the wall of the left side wall and the right side wall of the placing cavity. The transmission mechanism facilitates the motor 11 to drive the two fan blades to rotate at the same time.

The working principle is as follows: the utility model discloses can be convenient for the inside water of infiltration case roof beam to discharge, can dry the case roof beam inside fast simultaneously, improved the structural stability of case roof beam, improved life and security in service life, the rethread leaks the hole 2 and discharges in the cavity 8, after starting motor 11 and energizing a plurality of heater strips 6, motor 11 drives two second sprocket 12 and rotates, two second sprocket 12 drive first sprocket 14 through chain 13 and rotate, two first sprocket 14 drive flabellum 16 through pivot 15 and rotate, two flabellum 16 are because the direction of rotation is opposite, so right side flabellum 16 inhales outside air in cavity 8 through right side leakage hole 2, the air current is walked around guide plate 7 and is discharged the case roof beam through left side leakage hole 2 by left side flabellum 16; when needing to clear up filter screen 9, pulling two and drawing the piece, drawing the piece and driving metal pole 19 and remove, when two metal poles 19 all no longer with the magnet 21 actuation that corresponds, can take off clearance, labour saving and time saving is efficient with activity frame 10 and filter screen 9.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the present application and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

The above description is only for the preferred embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present application in the scope of the present application.

Claims (8)

1. A long-span steel-concrete combined box girder structure comprises a box girder body (4) internally provided with a hollow cavity (8), and is characterized in that a fixing plate (3) is fixedly arranged on the lower side cavity wall of the hollow cavity (8), the middle part of the upper end of the fixing plate (3) is fixedly connected with a vertical guide plate (7), leakage grooves are respectively formed in the left side and the right side of the guide plate (7) at the upper end of the fixing plate (3), leakage holes (2) are respectively formed between the bottoms of the two leakage grooves and the lower ends of the outer walls of the left side and the right side of the box girder body (4), mounting frames (1) are fixedly connected inside lower side openings of the two leakage holes (2), movable frames (10) are respectively arranged at one side of the two mounting frames (1) far away from the guide plate (7), and filter screens (9) are respectively fixedly connected inside the two movable frames (10), the outer walls of the upper side and the lower side of each of the two movable frames (10) are respectively provided with a circular groove, the wall of one side, close to the guide plate (7), of each of the circular grooves is provided with a sliding hole, a locking mechanism is fixedly arranged between each of the circular grooves and the corresponding sliding hole, a placing cavity is formed in each of the guide plates (7), a motor (11) is fixedly arranged on the wall of the upper side of the placing cavity, the positions, corresponding to the motor (11), of the left side wall and the right side wall of each of the guide plates (7) are respectively and fixedly connected with a horizontal strip-shaped plate (17), one end, far away from the motor (11), of each of the two strip-shaped plates (17) is respectively and fixedly connected with the wall of the hollow cavity (8), the middle parts of the upper ends of the two strip-shaped plates (17) are respectively and rotatably connected with a rotating shaft (15) through a rolling bearing, the upper ends of the two rotating shafts (15) are respectively and fixedly connected with fan blades (16), and the lower ends of the two rotating shafts (15) penetrate through the lower sides of the strip-shaped plates (17), and a transmission mechanism is fixedly arranged between the lower ends of the two rotating shafts (15) and the shaft wall of the output shaft of the motor (11).

2. The long-span steel-concrete combined box girder structure according to claim 1, wherein the locking mechanism comprises a metal rod (19), a limiting shaft (18), a clamping rod (20) and a magnet (21), the metal rod (19) is slidably disposed inside the circular groove, one end of the metal rod (19) far away from the filter screen (9) extends to the outside of the circular groove, a strip-shaped hole is formed in the front side rod wall of the metal rod (19), the limiting shaft (18) is longitudinally slidably disposed inside the strip-shaped hole at one side far away from the filter screen (9), two ends of the limiting shaft (18) both extend to the outside of the strip-shaped hole and are fixedly connected with the groove wall of the circular groove, the clamping rod (20) is slidably disposed inside the sliding hole, one end of the clamping rod (20) close to the guide plate (7) extends to the outside of the sliding hole and is fixedly connected with the mounting frame (1), the magnet (21) and the clamping rod (20) are fixedly connected at one end in the sliding hole, and the magnet (21) and the rod wall of the metal rod (19) are attracted with each other.

3. The long-span steel-concrete composite box girder structure as claimed in claim 2, wherein the end of the metal rod (19) outside the circular groove is fixedly connected with a pulling block.

4. The long-span steel-concrete composite box girder structure according to claim 1, wherein the filter screen (9) is a stainless steel screen.

5. The long-span steel-concrete combined box girder structure according to claim 1, wherein the transmission mechanism comprises two first chain wheels (14) and two second chain wheels (12), the two first chain wheels (14) are respectively fixedly connected with the lower ends of two rotating shafts (15), the two second chain wheels (12) are fixedly sleeved with the output shafts of the motors (11) at positions corresponding to the two first chain wheels (14), the two first chain wheels (14) are in transmission connection with the corresponding second chain wheels (12) through chains (13), and through holes matched with the two chains (13) are formed in the wall of each of the left side wall and the right side wall of the placing cavity.

6. The long-span steel-concrete combined box girder structure according to claim 1, wherein a drying box (5) is fixedly connected to the position, above the right fan blades (16), inside the hollow cavity (8), and a plurality of uniformly distributed heating wires (6) are fixedly arranged inside the drying box (5).

7. A long span steel-concrete composite box girder structure according to claim 1, wherein the rotation directions of the two fan blades (16) are opposite.

8. The long-span steel-concrete composite box girder structure according to claim 1, wherein both of the leakage grooves are tapered grooves.

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