CN213805074U - Highway bridge is with adjustable limit for width limit for height device - Google Patents

Abstract

The utility model belongs to the technical field of the technique of public road bridge roof beam and specifically relates to a public road bridge roof beam is with adjustable limit for width limit for height device is related to, it includes fixed stand and portable column, install the crossbeam between fixed stand and the portable column, the lateral wall of fixed stand corresponds sets up the spout that supplies the crossbeam to wear out, the length direction of spout is the same with the length direction of fixed stand, install an elevating system in the spout, elevating system is used for driving the crossbeam and is the elevating movement along the length direction of fixed stand, the one end that fixed stand was kept away from to the crossbeam slides the cooperation with the portable column, and the both sides wall of portable column runs through and sets up the first recess that supplies the crossbeam to pass, the length direction of first recess is the same with the moving direction of crossbeam, install the telescopic machanism that is used for driving the portable column and removes along the length direction of crossbeam in the first recess. The application has the effect of improving the adjustability of the width and height limiting device.

Description

Highway bridge is with adjustable limit for width limit for height device

Technical Field

The application relates to the technical field of highway bridges, in particular to an adjustable width and height limiting device for a highway bridge.

Background

In order to avoid damage to road, bridge and other building facilities caused by passing ultrahigh and ultra-wide vehicles, a plurality of roads are provided with width and height limiting devices.

The width and height limiting device in the related technology is formed by adopting a common frame structure, fixing a portal frame welded by steel pipes at the entrance position of a highway bridge normally, and hanging height or width limiting marks on the portal frame in a matching way.

In view of the above-mentioned related technologies, the inventor thinks that special emergency vehicles such as large-scale emergency vehicles, rescue vehicles and the like cannot pass through in time due to the single and unadjustable fixation of the height and width limiting device, and the height cannot be adjusted in real time according to special conditions, which brings great inconvenience to the vehicles needing to pass through in time.

SUMMERY OF THE UTILITY MODEL

In order to improve the adjustability of limit for width limit for height device, this application provides a public road bridge roof beam is with adjustable limit for width limit for height device.

The application provides a public road bridge roof beam is with adjustable limit for width limit for height device adopts following technical scheme:

an adjustable width and height limiting device for highway bridges comprises a fixed upright post and a movable upright post, wherein a cross beam is arranged between the fixed upright post and the movable upright post, the side wall of the fixed upright post is correspondingly provided with a sliding chute for the cross beam to penetrate out, the length direction of the sliding chute is the same as that of the fixed upright post, a lifting mechanism is arranged in the sliding groove and is used for driving the cross beam to do lifting motion along the length direction of the fixed upright post, one end of the cross beam far away from the fixed upright post is matched with the movable upright post in a sliding way, and the two side walls of the movable upright post are provided with a first groove for the cross beam to pass through, the length direction of the first groove is the same as the moving direction of the cross beam, and a telescopic mechanism used for driving the movable upright post to move along the length direction of the cross beam is arranged in the first groove.

By adopting the technical scheme, a worker adjusts the cross beam through the lifting mechanism, so that the cross beam does lifting motion along the length direction of the fixed upright post, and the width and height limiting device is adjusted in the height direction; the staff also can adjust the movable stand column through adjustment mechanism for the movable stand column moves along the length direction of crossbeam, thereby adjusts the distance between fixed stand column and the movable stand column, is favorable to improving the regulating power of limit for width device.

Optionally, elevating system includes lifting unit and adjusting part, lifting unit includes the screw rod and removes the seat, the screw rod rotates to be installed in the stationary mast, just the screw rod is vertical setting, it slides to install to remove the seat in the stationary mast, just remove the seat with screw rod threaded connection, crossbeam fixed connection is in on the lateral wall of removal seat, the other end of crossbeam with the cooperation of sliding of removal stand, just the both sides wall of removal stand runs through and has seted up first recess, the length direction of first recess with the moving direction of crossbeam is the same, just adjusting part is used for adjusting the screw rod rotates.

Through adopting above-mentioned technical scheme, the staff adjusts lifting unit through adjusting part for the screw rod rotates and drives and removes the seat and carry out the elevating movement along the length direction of screw rod, thereby makes and removes the seat and drive the crossbeam and do the lift and slide between fixed standing pillar and removal stand along spout and recess, thereby has realized that elevating system drives the crossbeam and is the effect of elevating movement.

Optionally, adjusting part includes dwang, first bevel gear and second bevel gear, first bevel gear with the coaxial fixed connection of screw rod, the dwang rotates to be installed in the stationary mast, just the dwang is worn out the stationary mast is kept away from outside the lateral wall of crossbeam one side, the dwang is located one end in the stationary mast with the coaxial fixed connection of second bevel gear, and first bevel gear meshes with second bevel gear mutually.

Through adopting above-mentioned technical scheme, the staff rotates the dwang for the dwang drives second bevel gear and rotates, and drives the first bevel gear who meshes with second bevel gear and rotate, thereby drives the screw rod and rotates, has realized the regulating action of adjusting part to the screw rod, and then has realized the regulating action of adjusting part to lifting unit.

Optionally, the rotating rod is located one end fixedly connected with adjusting hand wheel outside the fixed upright post.

Through adopting above-mentioned technical scheme, the setting of adjusting handle makes things convenient for the staff to rotate the dwang.

Optionally, slidable mounting has on the mobile column and is used for the bearing crossbeam supporting piece, the supporting piece is the dead lever, on the mobile column with run through on the both sides wall that first recess is adjacent and seted up the second recess, just the length direction of second recess with the moving direction of crossbeam is the same, the dead lever with the second recess is slided and is connected, wear out at the both ends of dead lever outside the both sides of mobile column, the dead lever stretches out the tip that stretches out in the mobile column both sides and is provided with the external screw thread and be connected with the nut respectively, the lower lateral wall of crossbeam with the lateral wall butt of dead lever.

Through adopting above-mentioned technical scheme, the both ends threaded connection of two nuts and dead lever to lock the dead lever on the mobile column, and make the crossbeam keep away from the one end bearing of fixed stand on the dead lever, thereby be favorable to improving the stability that the crossbeam was fixed between fixed stand and mobile column.

Optionally, telescopic machanism includes worm wheel and worm, the worm wheel with the coaxial fixed connection of dead lever, just the worm wheel set up in the mobile column, the worm rotates to be installed in the crossbeam, just the worm is kept away from the one end of stand stretch out outside the crossbeam, the spread groove has been seted up to the bottom of crossbeam, the cell wall of spread groove runs through the crossbeam is kept away from the one end of fixed column, the worm wheel penetrate the spread groove and with the worm meshing.

Through adopting above-mentioned technical scheme, the staff keeps away from the one end of fixed post through rotating the worm to drive under the meshing cooperation of worm wheel and worm and remove the seat and slide along the length direction of worm's length, thereby adjust the distance between fixed post and the removal stand, realized that telescopic machanism drives the effect that the length direction of removing along the crossbeam of removal stand.

Optionally, one end of the worm penetrating through the cross beam is fixedly connected with a turntable.

Through adopting above-mentioned technical scheme, the setting of carousel makes things convenient for the staff to rotate the worm.

Optionally, a movable chassis is mounted at the bottom end of the movable upright post.

Through adopting above-mentioned technical scheme, the setting on removal chassis is favorable to promoting the smooth and easy nature when moving along the crossbeam of removal stand.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the lifting assembly and the adjusting assembly are arranged in a matched manner, so that the height adjusting capability of the width and height limiting device is improved, and the adjusting capability of the width and height limiting device is improved;

2. the setting of flexible subassembly has improved the distance regulating power of limit for width limit for height device between fixed stand and the removal stand, has improved the ability that limit for width limit for height device adjusted the width to the controllability of limit for width limit for height device has further been improved.

Drawings

Fig. 1 is a schematic overall structure diagram of an adjustable width and height limiting device for a highway bridge according to the present application.

Fig. 2 is a partial sectional structural view of a width and height adjustable device for highway bridges in the present application, which is used for fixing an upright post, a movable upright post and a cross beam.

Description of reference numerals: 1. fixing the upright post; 2. moving the upright post; 3. a cross beam; 4. moving the base plate; 41. a fixing plate; 42. a steering wheel; 5. a screw; 6. a movable seat; 7. a chute; 8. rotating the rod; 9. a first bevel gear; 10. a second bevel gear; 11. adjusting a hand wheel; 12. a worm gear; 13. a worm; 14. a turntable; 15. a first groove; 16. a second groove; 17. connecting grooves; 18. and (5) fixing the rod.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses a highway bridge is with adjustable limit for width limit for height device. Referring to fig. 1, a public road bridge roof beam is with adjustable limit for width limit for height device is including being the fixed standing pillar 1 of vertical setting and being the mobile column 2 of vertical setting, be provided with crossbeam 3 between fixed standing pillar 1 and the mobile column 2, crossbeam 3 is the level setting, the one end of crossbeam 3 is connected through an elevating system with fixed standing pillar 1, elevating system is used for driving crossbeam 3 and is the elevating movement along the length direction of fixed standing pillar 1, the other end of crossbeam 3 is connected through a telescopic machanism with mobile column 2, telescopic machanism is used for driving mobile column 2 and is the concertina movement along the length direction of crossbeam 3. The width of the passing vehicle can be limited by the arranged fixed upright 1 and the arranged moving upright 2, and the height of the passing vehicle is limited by the cross beam 3 between the fixed upright 1 and the moving upright 2. The lifting mechanism arranged between the fixed upright post 1 and the cross beam 3 can adjust the height of the cross beam 3, so that the adjustable capacity of the width-limiting height-limiting device is improved, and the telescopic mechanism arranged between the movable upright post 2 and the cross beam 3 can adjust the width between the fixed upright post 1 and the movable upright post 2, so that the adjustable capacity of the width-limiting height-limiting device is further improved.

Specifically, in order to improve the smoothness of the moving upright post 2 in the moving process, the bottom end of the moving upright post 2 is fixedly provided with a moving chassis. The movable chassis comprises a fixed plate 41 and a steering wheel 42, wherein the top wall of the fixed plate 41 is fixedly connected with the bottom end of the movable upright post 2, and the steering wheel 42 is arranged at the top of the fixed plate 41.

Referring to fig. 2, the lifting mechanism includes a lifting assembly, which is provided in the fixed column 1. Lifting unit includes screw rod 5 and removes seat 6, is provided with the cavity in the fixed post 1, and screw rod 5 is vertical setting in the cavity, and the both ends of screw rod 5 are connected through the bearing rotation with fixed post 1. The movable seat 6 is arranged in the cavity of the fixed upright post 1 in a sliding manner, and the movable seat 6 is in threaded connection with the screw rod 5. The lateral wall of fixed upright 1 runs through to having seted up spout 7 in the cavity, and the length direction of spout 7 is the same with the moving direction who removes seat 6. One end of the cross beam 3 is fixedly connected with the side wall of the movable seat 6, the cross beam 3 is in sliding fit with the sliding groove 7, and one end, far away from the movable seat 6, of the cross beam 3 extends out of the side wall of the fixed upright post 1.

Referring to fig. 2, the lifting mechanism includes an adjusting assembly provided at a sidewall of the stationary mast 1. The adjustment assembly comprises a swivelling lever 8, a first bevel gear 9 and a second bevel gear 10. Fixed post 1 runs through the cavity on keeping away from one side lateral wall of crossbeam 3 and has seted up the commentaries on classics hole, and dwang 8 rotates and installs in the commentaries on classics hole, and the lateral wall of fixed post 1 is worn out to the one end of dwang 8, and the other end of dwang 8 penetrates in the cavity. One end of the rotating rod 8 penetrating into the cavity is coaxially and fixedly connected with the second bevel gear 10, the first bevel gear 9 is coaxially and fixedly connected with the screw rod 5, and the first bevel gear 9 is meshed with the second bevel gear 10. When the height of crossbeam 3 is adjusted to needs, the staff rotates dwang 8 for dwang 8 drives second bevel gear 10 and rotates, and first bevel gear 9 meshes with second bevel gear 10 mutually, makes second bevel gear 10 drive first bevel gear 9 and drive screw rod 5 and rotate, makes screw rod 5 drive and removes seat 6 and drive crossbeam 3 and be elevating movement along the length direction of screw rod 5, thereby has realized that elevating system drives crossbeam 3 and is elevating movement's effect along vertical direction.

Specifically, for the convenience of staff's rotation dwang 8, the dwang 8 is worn out the one end fixedly connected with adjusting hand wheel 11 of fixed upright 1 lateral wall.

Referring to fig. 2, the telescopic mechanism comprises a worm wheel 12 and a worm 13, the worm 13 is rotatably installed in the cross beam 3, one end of the worm 13 far away from the fixed upright post 1 penetrates out of the end part of the cross beam 3 and is fixedly connected with a rotary table 14, and a worker can conveniently rotate the worm 13 through the rotary table 14. One end of the beam 3 far away from the fixed upright post 1 is matched with the movable upright post 2 in a sliding way. Specifically, a first groove 15 is formed in the side wall of one side of the moving upright 2, which penetrates through the side wall of the other side, and the length direction of the first groove 15 is the same as the moving direction of the sliding groove 7. The worm wheel 12 is mounted in the first recess 15 by means of a support which can be adjusted in height in the vertical direction. The lower side wall of the cross beam 3 is correspondingly provided with a connecting groove 17, the length direction of the connecting groove 17 is the same as the moving direction of the moving upright post 2, and the worm wheel 12 extends into the cross beam 3 through the connecting groove 17 and is meshed with the worm 13. The staff rotates carousel 14 and drives worm 13 and rotate, and under the meshing relation of worm wheel 12 and worm 13, worm wheel 12 can drive and move movable upright 2 and do the concertina movement along the length direction of worm 13 to realize the effect that telescopic machanism drives movable upright 2 and moves along the length direction of crossbeam 3.

Specifically, a second groove 16 is formed in the movable upright post 2 in a penetrating manner on the side wall of the two sides adjacent to the first groove 15, the second groove 16 is communicated with the first groove 15, the length direction of the second groove 16 is the same as that of the first groove 15, the supporting piece is a fixing rod 18, the fixing rod 18 is horizontally arranged, and the fixing rod 18 is in sliding fit with the second groove 16. Two ends of the fixed rod 18 respectively penetrate through two side walls of the movable upright post 2 and are connected with nuts through threads. The width of the nut is greater than the width of the second groove 16. The worm wheel 12 is coaxially and fixedly connected with a rod body of a fixed rod 18 at the position where the second groove 16 is communicated with the first groove 15. During adjustment, a worker locks the fixing rod 18 at the lower end of the cross beam 3 through two nuts, and makes the worm wheel 12 extend into the cross beam 3 through the connecting groove 17 to be meshed with the worm 13. The worker can adjust the distance between the movable upright 2 and the fixed upright 1 by rotating the turntable 14.

The implementation principle of the adjustable width and height limiting device for the highway bridge in the embodiment of the application is as follows:

when the worker needs to adjust the width limiting range of the width and height limiting device, the worker can rotate the rotary table 14 to drive the worm 13 to rotate, and can drive the moving upright post 2 to move telescopically along the length direction of the cross beam 3 under the meshing action of the worm 13 and the worm wheel 12; when the worker needs to adjust the height and width limiting range, the worker firstly unscrews the nuts at the two ends of the fixing rod 18, so that the fixing rod 18 can drive the worm wheel 12 to slide up and down along the length direction of the second groove 16, then the worker rotates the adjusting hand wheel 11, so that the adjusting hand wheel 11 drives the rotating rod 8 and the first bevel gear 9 to rotate, under the meshing action of the first bevel gear 9 and the second bevel gear 10, the first bevel gear 9 drives the second bevel gear 10 and drives the screw 5 to rotate, thereby leading the screw 5 to drive the movable seat 6 and the beam 3 to do lifting motion along the length direction of the screw 5, when the adjustment is finished, the worker adjusts the fixing rod 18, moves the fixing rod 18 to the position below the cross beam 3, enables the worm wheel 12 to be meshed with the worm 13, and at the moment, the worker tightens nuts at two ends of the fixing rod 18, so that the height of the cross beam 3 is adjusted. By the arrangement, the width and height limiting device has the capability of adjusting the height and the width, so that the adjustability of the width and height limiting device is improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a public road bridge roof beam is with adjustable limit for width limit for height device which characterized in that: comprises a fixed upright post (1) and a movable upright post (2), a beam (3) is installed between the fixed upright post (1) and the movable upright post (2), a sliding groove (7) for the beam (3) to penetrate out is correspondingly arranged on the side wall of the fixed upright post (1), the length direction of the sliding groove (7) is the same as that of the fixed upright post (1), an elevating mechanism is installed in the sliding groove (7), the elevating mechanism is used for driving the beam (3) to do elevating movement along the length direction of the fixed upright post (1), one end of the beam (3) far away from the fixed upright post (1) is matched with the movable upright post (2) in a sliding way, in addition, two side walls of the movable upright post (2) are penetrated through and provided with a first groove (15) for the beam (3) to pass through, the length direction of the first groove (15) is the same as that of the beam (3), and a telescopic mechanism used for driving the movable upright post (2) to move along the length direction of the cross beam (3) is installed in the first groove (15).

2. The adjustable width and height limiting device for the highway bridge according to claim 1, wherein: elevating system includes lifting unit and adjusting part, lifting unit includes screw rod (5) and removes seat (6), screw rod (5) are rotated and are installed in stationary mast (1), just screw rod (5) are vertical setting, it slides and installs to remove seat (6) in stationary mast (1), just remove seat (6) with screw rod (5) threaded connection, crossbeam (3) fixed connection be in remove on the lateral wall of seat (6), adjusting part is used for adjusting screw rod (5) rotate.

3. The adjustable width and height limiting device for the highway bridge of claim 2, wherein: adjusting part includes dwang (8), first bevel gear (9) and second bevel gear (10), first bevel gear (9) with the coaxial fixed connection of screw rod (5), dwang (8) rotate to be installed in stationary mast (1), just dwang (8) are worn out stationary mast (1) is kept away from outside the lateral wall of crossbeam (3) one side, dwang (8) are located one end in stationary mast (1) with the coaxial fixed connection of second bevel gear (10), and first bevel gear (9) and second bevel gear (10) mesh mutually.

4. The adjustable width and height limiting device for the highway bridge of claim 3, wherein: dwang (8) are located the outer one end fixedly connected with adjusting hand wheel (11) of fixed post (1).

5. The adjustable width and height limiting device for the highway bridge according to claim 1, wherein: sliding mounting has on removal stand (2) and is used for the bearing the support of crossbeam (3), the support is dead lever (18), on removal stand (2) with run through on the both sides wall that first recess (15) are adjacent and seted up second recess (16), just the length direction of second recess (16) with the moving direction of crossbeam (3) is the same, dead lever (18) with second recess (16) slide and are connected, wear out at the both ends of dead lever (18) outside the both sides of removal stand (2), dead lever (18) stretch out the tip that removes stand (2) both sides and be provided with the external screw thread and be connected with the nut respectively, the lower lateral wall of crossbeam (3) with the lateral wall butt of dead lever (18).

6. The adjustable width and height limiting device for the highway bridge of claim 5, wherein: telescopic machanism includes worm wheel (12) and worm (13), worm wheel (12) with the coaxial fixed connection of dead lever (18), just worm wheel (12) set up in moving upright (2), worm (13) rotate to be installed in crossbeam (3), just worm (13) are kept away from the one end of stand stretch out in outside crossbeam (3), spread groove (17) have been seted up to the bottom of crossbeam (3), the cell wall of spread groove (17) runs through crossbeam (3) are kept away from the one end of stationary upright (1), worm wheel (12) penetrate spread groove (17) and with worm (13) meshing.

7. The adjustable width and height limiting device for the highway bridge of claim 6, wherein: one end of the worm (13) penetrating out of the cross beam (3) is fixedly connected with a turntable (14).

8. The adjustable width and height limiting device for the highway bridge according to claim 1, wherein: the bottom end of the movable upright post (2) is provided with a movable chassis.

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