CN210857026U - Highway bridge is with adjustable limit for width limit for height device - Google Patents
Highway bridge is with adjustable limit for width limit for height device Download PDFInfo
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- CN210857026U CN210857026U CN201921172020.1U CN201921172020U CN210857026U CN 210857026 U CN210857026 U CN 210857026U CN 201921172020 U CN201921172020 U CN 201921172020U CN 210857026 U CN210857026 U CN 210857026U
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Abstract
The utility model relates to a width and height adjustable device for a highway bridge, which comprises two hollow support rods; the two support rods are respectively vertically fixed on two sides of a road; two ends of a horizontal main beam are respectively welded and fixed at the upper ends of the supporting rods; a horizontal height limiting beam is arranged right below the main cross beam; connecting columns are fixedly welded at two ends of the height limiting beam respectively; after the connecting column penetrates through the inner cavity of the supporting rod, a lifting gear is fixed at the tail end of the connecting column; the lifting gear is meshed with a first rack fixed in the inner cavity of the supporting rod; one end of the rotating handle penetrates into the inner cavity of the supporting rod, and a bearing is sleeved at the head part of the rotating handle, which is positioned in the supporting rod, and is fixed on the inner cavity of the supporting rod; a driving gear is fixed in the middle of one end of the rotating handle, which is positioned in the supporting rod; a driven gear is fixedly sleeved on the outer side wall surface of the middle part of the connecting column; the driving gear is in transmission connection with the driven gear through a chain.
Description
Technical Field
The utility model relates to a public road bridge roof beam is with adjustable limit for width limit for height device belongs to public road bridge roof beam technical field.
Background
At present, in order to protect bridges, culverts, tunnels or other reasons on roads, height limiting devices need to be arranged at specified road positions, the height limiting devices for highway bridges and bridges are used for limiting the passing of too-high vehicles, and the width limiting devices are used for limiting the passing of too-wide vehicles, so that the highway bridges and bridges are protected.
Chinese utility model patent CN207091966U, entitled adjustable width and height limiting device for highway bridges, discloses an adjustable width and height limiting device for highway bridges, which comprises two vertical rods and a crossbeam arranged at the top ends of the vertical rods, wherein the bottom ends of the vertical rods are provided with bases, the vertical rods comprise fixed vertical rods fixedly connected with the bases and adjustable vertical rods sleeved on the fixed vertical rods, and the middle parts of the crossbeams are provided with telescopic rods; the upper end of the fixed vertical rod is provided with a manual jack structure, the upper end of the jack structure props against the internal structure of the adjustable vertical rod, and the internal structure of the adjustable vertical rod is provided with a groove body matched with the top end of the jack; compared with the prior art, the utility model, can be according to emergency or to different highway sections, do the regulation of restriction height and width, both play effective restriction effect, also play emergent emergency measure, adapt to the different height limit width requirements in many highway sections simultaneously, economical and convenient, the mobility is nimble
However, the above patent still has the following problems:
1. the height of a main beam is usually adjusted by a jack in the height limiting and adjusting process of the conventional width and height adjustable device for the highway bridge, the working process of the conventional height and width adjustable device is too troublesome, and after the main beam is adjusted for a long time, the jack is failed under the long-term working condition under the influence of weather, so that the safety is low, the stability of the whole device is influenced, and the use requirement cannot be met;
2. the width of the main beam is often reduced or enlarged in the width limiting and adjusting process of the conventional width-adjustable height limiting device for the highway bridge, supporting rods at certain two ends are needed in the process, the process is complicated, and the use requirements of people cannot be met.
SUMMERY OF THE UTILITY MODEL
In order to overcome the problem, the utility model provides a public road bridge roof beam is with adjustable limit for width limit for height device, this public road bridge roof beam is with adjustable limit for width limit for height device simple structure, and is easy and simple to handle, has realized the quick adjustment of limit for width limit for height device, and stability is high and the security is high simultaneously.
The technical scheme of the utility model as follows:
an adjustable width and height limiting device for a highway bridge comprises two hollow support rods; the two support rods are respectively vertically fixed on two sides of a road; two ends of a horizontal main beam are respectively welded and fixed at the upper ends of the supporting rods; a horizontal height limiting beam is arranged right below the main cross beam; connecting columns are fixedly welded at two ends of the height limiting beam respectively; after the connecting column penetrates through the inner cavity of the supporting rod, a lifting gear is fixed at the tail end of the connecting column; the lifting gear is meshed with a first rack fixed in the inner cavity of the supporting rod; one end of the rotating handle penetrates into the inner cavity of the supporting rod, and a bearing is sleeved at the head part of the rotating handle, which is positioned in the supporting rod, and is fixed on the inner cavity of the supporting rod; a driving gear is fixed in the middle of one end of the rotating handle, which is positioned in the supporting rod; a driven gear is fixedly sleeved on the outer side wall surface of the middle part of the connecting column; the driving gear is in transmission connection with the driven gear through a chain.
Furthermore, the bottom of the height limiting beam is provided with a sliding groove along the length direction; the upper end of the vertical width limiting column is slidably sleeved in the chute; a motor is fixed at the top of the inner cavity of the width limiting column, and a rotating shaft of the motor penetrates out of the width limiting column upwards and then is fixed with a rotating gear; the rotating gear is meshed with a second rack fixed at the top of the sliding groove; the inner cavity of the bottom of the width limiting column is sleeved with an extension column, and the extension column is structurally matched with the width limiting column.
Furthermore, a horizontal supporting base is fixed at the bottom of the supporting rod.
Furthermore, a control panel is fixed on the outer side wall surface of the support rod; the surface of the control panel is provided with a width limiting column right-moving button and a width limiting column left-moving button; the control panel is electrically connected with the motor; the control panel is electrically connected with an external power supply through a wire.
Furthermore, the lower part of the width limiting column is connected with a limiting bolt in a penetrating way; a plurality of limiting holes are uniformly formed in the side wall of the extension column in a penetrating manner; and after the limiting bolt sequentially penetrates through the side wall of the width limiting column and the limiting hole, the width limiting column is fixedly connected with the extension column.
Furthermore, horizontal fixing plates are respectively fixed on two sides of the top of the width limiting column, and the fixing plates and the width limiting column are of an integrally formed structure; the fixed plate is matched with the sliding chute structure and can slide in the sliding chute; and the bottom of the fixed plate is slidably sleeved with a ball.
Furthermore, the lifting gear, the driving gear and the driven gear are all located in the supporting rod inner cavity.
Furthermore, a vertical strip-shaped opening is formed in the inner side of the supporting rod in a penetrating mode, and the strip-shaped opening is matched with the connecting column structure; the connecting column can slide up and down in the strip-shaped opening.
Furthermore, four corners of the top of the supporting base are connected with fixing bolts through threads in a penetrating manner.
The utility model discloses following beneficial effect has:
1. through being equipped with the limit for height roof beam under the main beam, limit for height roof beam both ends and pass through lifting gear and be connected with first rack toothing, the fixed cover of spliced pole outside surface at main beam both ends inlays and is connected with driven gear simultaneously, driven gear passes through the chain and connects in the driving gear, make this public road bridge roof beam with adjustable limit for width limit for height device in the use, can be through the rotatory driving gear of rotatory handle, the driving gear passes through the chain and drives driven gear rotatory, it reciprocates in first rack to realize the limit for height roof beam under lifting gear effect, thereby satisfy the limit for height of not co-altitude, provide very big facility for people in altitude mixture control in-process, unnecessarily adjust whole girder structure, thereby guarantee the stability of whole device.
2. Through having seted up the spout on limit for height roof beam bottom surface, limit for width post inner chamber top fixedly connected with motor, the motor is connected through second rack meshing in rotatory gear and the spout, limit for width post bottom inner chamber cover has inlayed the extension post, make this kind of public road bridge roof beam with adjustable limit for width limit for height device when adjusting the width, accessible control panel control motor work, the motor drives rotatory gear rotation, it moves suitable position to make whole limit for width post in the second rack, then the mating reaction through spacing bolt and spacing hole will prolong the post and adjust suitable length, need not remove the regulation that the support base just can realize the width.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic diagram of the internal structure of the present invention.
Fig. 3 is a schematic view of the internal structure of the sliding chute of the present invention.
The reference numbers in the figures denote:
1. a support base; 2. a support bar; 3. a control panel; 4. a main cross beam; 5. a height limiting beam; 6. connecting columns; 7. a lifting gear; 8. a first rack; 9. a driven gear; 10. rotating the handle; 11. a bearing; 12. a driving gear; 13. a chute; 14. a second rack; 15. a width limiting column; 16. a motor; 17. a rotating gear; 18. extending the column; 19. a width limiting column right movement button; 20. a width limiting column left moving button; 21. a limit bolt; 22. a limiting hole; 23. a fixing plate; 24. a ball bearing; 25. a strip-shaped opening; 26. and (5) fixing the bolt.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1-3, a width and height adjustable device for highway bridges comprises two hollow support rods 2, wherein the cross sections of the support rods 2 are of square structures; the two support rods 2 are respectively vertically fixed on two sides of a road; two ends of a horizontal main beam 4 are respectively welded and fixed at the upper end of the supporting rod 2; a horizontal height limiting beam 5 is arranged right below the main cross beam 4; connecting columns 6 are fixedly welded at two ends of the height limiting beam 5 respectively; after the connecting column 6 penetrates through the inner cavity of the supporting rod 2, a lifting gear 7 is fixed at the tail end; the lifting gear 7 is meshed with a first rack 8 fixed in the inner cavity of the support rod 2; one end of a rotating handle 10 penetrates into the inner cavity of the supporting rod 2, a bearing 11 is sleeved at the head part of the rotating handle 10 positioned in the supporting rod 2, and the bearing 11 is fixed on the inner cavity of the supporting rod 2; a driving gear 12 is fixed in the middle of one end of the rotating handle 10 positioned in the supporting rod 2; a driven gear 9 is fixedly sleeved on the outer side wall surface of the middle part of the connecting column 6; the driving gear 12 is in transmission connection with the driven gear 9 through a chain.
Further, the bottom of the height limiting beam 5 is provided with a sliding groove 13 along the length direction; the upper end of a vertical width limiting column 15 is slidably sleeved in the chute 13; a motor 16 is fixed at the top of the inner cavity of the width limiting column 15, and a rotating shaft of the motor 16 penetrates out of the width limiting column 15 upwards and then is fixed with a rotating gear 17; the rotating gear 17 is meshed with a second rack 14 fixed on the top of the sliding chute 13; the inner cavity of the bottom of the width limiting column 15 is sleeved with an extension column 18, and the extension column 18 is structurally matched with the width limiting column 15. The length of the extension column 18 can be adjusted through the matching action of the limiting bolt 21 and the limiting hole 22 so as to meet the use requirement.
Further, a horizontal supporting base 1 is fixed at the bottom of the supporting rod 2.
Further, a control panel 3 is fixed on the outer side wall surface of the support rod 2; the surface of the control panel 3 is provided with a width limiting column right moving button 19 and a width limiting column left moving button 20; the control panel 3 is electrically connected with the motor 16; the control panel 3 is electrically connected with an external power supply through an electric wire.
Furthermore, the lower part of the width limiting column 15 is connected with a limiting bolt 21 in a penetrating way; a plurality of limiting holes 22 are uniformly formed in the side wall of the extension column 18 in a penetrating manner; the limiting bolt 21 passes through the side wall of the width limiting column 15 and the limiting hole 22 in sequence, and then the width limiting column 15 and the extension column 18 are fixedly connected.
Furthermore, horizontal fixing plates 23 are respectively fixed on two sides of the top of the width limiting column 15, and the fixing plates 23 and the width limiting column 15 are of an integrally formed structure; the fixing plate 23 is structurally matched with the sliding chute 13 and can slide in the sliding chute 13; the bottom of the fixed plate 23 is slidably sleeved with a ball 24. The fixing plate 23 and the balls 24 can further secure the stability of the width-limiting column 15.
In particular, the balls 24 are stainless steel balls.
Further, the lifting gear 7, the driving gear 12 and the driven gear 9 are all located in the inner cavity of the support rod 2.
Furthermore, a vertical strip-shaped opening 25 penetrates through the inner side of the support rod 2, and the strip-shaped opening 25 is structurally matched with the connecting column 6; the connecting column 6 can slide up and down in the strip-shaped opening 25. In this way, it can be ensured that the height beams 5 can be adjusted in position up and down.
Furthermore, the four corners of the top of the support base 1 are connected with fixing bolts 26 through threads.
The utility model discloses a theory of operation:
referring to fig. 1-3, before using the adjustable width and height limiting device for highway bridges, the supporting base 1 of the adjustable width and height limiting device for highway bridges is first fixed on both sides of a road through the fixing bolt 26, and the width limiting column right-shift button 19 and the width limiting column left-shift button 20 on the control panel 3 are electrically connected to an external power source through electric wires. When the height of the height-adjustable height-limiting device for the highway bridge is required to be adjusted, the driving gear 12 is rotated through the rotating handle 10, the driving gear 12 drives the driven gear 9 to rotate through the chain, the height-limiting beam 5 is enabled to move up and down in the first rack 8 under the action of the lifting gear 7, and therefore height limitation of different heights is met. When the width of the adjustable width and height limiting device for the highway bridge needs to be adjusted, the motor 16 is controlled to work through the control panel 3, the motor 16 drives the rotating gear 17 to rotate, the whole width limiting column 15 moves to a proper position in the second rack 14, and then the length of the extension column 18 is adjusted to be proper through the matching effect of the limiting bolt 21 and the limiting hole 22, so that the use requirement is met.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (9)
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 two hollow supporting rods (2); the two support rods (2) are respectively vertically fixed on two sides of a road; two ends of a horizontal main beam (4) are respectively welded and fixed at the upper end of the supporting rod (2); a horizontal height limiting beam (5) is arranged right below the main cross beam (4); connecting columns (6) are respectively fixedly welded at two ends of the height limiting beam (5); the tail end of the connecting column (6) is fixed with a lifting gear (7) after penetrating through the inner cavity of the supporting rod (2); the lifting gear (7) is meshed with a first rack (8) fixed in the inner cavity of the supporting rod (2); one end of a rotating handle (10) penetrates into the inner cavity of the supporting rod (2), a bearing (11) is sleeved at the head part of the rotating handle (10) positioned in the supporting rod (2), and the bearing (11) is fixed on the inner cavity of the supporting rod (2); a driving gear (12) is fixed in the middle of one end of the rotating handle (10) positioned in the supporting rod (2); a driven gear (9) is fixedly sleeved on the outer side wall surface of the middle part of the connecting column (6); the driving gear (12) is in transmission connection with the driven gear (9) through a chain.
2. The adjustable width and height limiting device for highway bridges of claim 1, wherein: the bottom of the height limiting beam (5) is provided with a sliding groove (13) along the length direction; the upper end of a vertical width limiting column (15) is slidably sleeved in the chute (13); a motor (16) is fixed at the top of the inner cavity of the width limiting column (15), and a rotating shaft of the motor (16) penetrates out of the width limiting column (15) upwards and then is fixed with a rotating gear (17); the rotating gear (17) is meshed with a second rack (14) fixed at the top of the sliding chute (13); the inner cavity of the bottom of the width limiting column (15) is sleeved with an extension column (18), and the extension column (18) is matched with the width limiting column (15) in structure.
3. The adjustable width and height limiting device for highway bridges of claim 1, wherein: the bottom of the supporting rod (2) is fixed with a horizontal supporting base (1).
4. The adjustable width and height limiting device for highway bridges of claim 2, wherein: a control panel (3) is fixed on the outer side wall surface of the support rod (2); the surface of the control panel (3) is provided with a width limiting column right moving button (19) and a width limiting column left moving button (20); the control panel (3) is electrically connected with the motor (16); the control panel (3) is electrically connected with an external power supply through an electric wire.
5. The adjustable width and height limiting device for highway bridges of claim 2, wherein: the lower part of the width limiting column (15) is connected with a limiting bolt (21) in a penetrating way; a plurality of limiting holes (22) are uniformly formed in the side wall of the extension column (18) in a penetrating manner; the limiting bolt (21) penetrates through the side wall of the width limiting column (15) and the limiting hole (22) in sequence, and then the width limiting column (15) is fixedly connected with the extension column (18).
6. The adjustable width and height limiting device for highway bridges of claim 2, wherein: horizontal fixing plates (23) are respectively fixed on two sides of the top of the width limiting column (15), and the fixing plates (23) and the width limiting column (15) are of an integrally formed structure; the fixing plate (23) is structurally matched with the sliding chute (13) and can slide in the sliding chute (13); the bottom of the fixed plate (23) is slidably sleeved with a ball (24).
7. The adjustable width and height limiting device for highway bridges of claim 1, wherein: the lifting gear (7), the driving gear (12) and the driven gear (9) are all located in the inner cavity of the supporting rod (2).
8. The adjustable width and height limiting device for highway bridges of claim 1, wherein: a vertical strip-shaped opening (25) penetrates through the inner side of the supporting rod (2), and the strip-shaped opening (25) is structurally matched with the connecting column (6); the connecting column (6) can slide up and down in the strip-shaped opening (25).
9. The adjustable width and height limiting device for highway bridges of claim 3, wherein: four corners of the top of the supporting base (1) are connected with fixing bolts (26) through threads in a penetrating manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921172020.1U CN210857026U (en) | 2019-07-24 | 2019-07-24 | Highway bridge is with adjustable limit for width limit for height device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921172020.1U CN210857026U (en) | 2019-07-24 | 2019-07-24 | Highway bridge is with adjustable limit for width limit for height device |
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| Publication Number | Publication Date |
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| CN210857026U true CN210857026U (en) | 2020-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921172020.1U Active CN210857026U (en) | 2019-07-24 | 2019-07-24 | Highway bridge is with adjustable limit for width limit for height device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115110451A (en) * | 2021-12-27 | 2022-09-27 | 上海阳道智能交通设施有限公司 | Traffic facilities limit for height frame with high self-test |
-
2019
- 2019-07-24 CN CN201921172020.1U patent/CN210857026U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115110451A (en) * | 2021-12-27 | 2022-09-27 | 上海阳道智能交通设施有限公司 | Traffic facilities limit for height frame with high self-test |
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