Road height limiting equipment for road and bridge traffic transportation

Abstract

The utility model relates to the technical field of roads and bridges, in particular to road height limiting equipment for road and bridge traffic transportation, which comprises a stand column, the lower end of the stand column is fixedly connected with a mounting bottom plate, the upper part of the stand column is provided with a front-back through sliding chute, and the upper end of the stand column is fixedly provided with a first positive and negative motor; the output end of the first forward and reverse motor is fixedly connected with a first lead screw, the first lead screw is movably installed in the sliding groove, the first lead screw is in threaded connection with a height limiting mechanism, and the height limiting mechanism is in sliding connection with the sliding groove. According to the road height limiting equipment for road and bridge traffic transportation, the first forward and reverse motor and the first lead screw are used in cooperation, meanwhile, visual height reference provided by the graduated scale is combined, the height limiting height is flexibly adjusted, and the road height limiting requirements in different scenes are met; different road width requirements can be met, and the flexibility and safety of road and bridge traffic transportation management are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of road and bridge technology, and in particular to a road height restriction device for road and bridge transportation. Background Technology

[0002] In road and bridge transportation, height restriction devices are key facilities for ensuring traffic safety, with their main function being to prevent oversized vehicles from damaging bridges, tunnels, or other traffic structures. However, traditional height restriction devices generally suffer from fixed heights and inconvenient adjustments, posing numerous challenges in practical applications. For example, on different types of roads, height restriction requirements may vary depending on the type and size of passing vehicles, but traditional devices struggle to adapt quickly to these changes. The limitations of traditional height restriction devices are particularly pronounced in special scenarios, such as temporary construction areas or road sections requiring adjustments to height restrictions based on different time periods. Furthermore, when it is necessary to expand the height restriction range, traditional devices often cannot flexibly adjust the lateral width, further limiting their applicability. These problems not only affect the efficiency of traffic management but may also pose safety hazards. Therefore, we propose a road height restriction device for road and bridge transportation. Utility Model Content

[0003] The main purpose of this utility model is to provide a road height restriction device for road and bridge transportation, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A road height restriction device for road and bridge transportation includes a column, a mounting base plate fixedly connected to the lower end of the column, a sliding groove through the front and rear of the column, a first forward and reverse motor fixedly installed at the upper end of the column, a first lead screw fixedly connected to the output end of the first forward and reverse motor, the first lead screw being movably installed in the sliding groove, and a height restriction mechanism threadedly connected to the first lead screw, and the height restriction mechanism being slidably connected to the sliding groove.

[0006] The height limiting mechanism includes a slider, which is slidably connected in a groove and threadedly connected to a lead screw. A counterweight is fixedly installed at the rear end of the slider, and an outer height limiting sleeve is fixedly connected to the front end of the slider. A connecting groove is opened at the front end of the outer height limiting sleeve. The left, right, and lower ends of the connecting groove are open structures, and an extension body is slidably connected in the connecting groove.

[0007] Preferably, two fixing ears are fixedly welded to both ends of the outer height limiting sleeve, and the two fixing ears on the same side are distributed front and back.

[0008] Preferably, the extension body includes an inner height limiting rod and a second forward and reverse motor. There are two second forward and reverse motors, which are fixedly connected to the left and right fixed ears respectively. The output end of the second forward and reverse motor is fixedly connected to a second lead screw, and the second lead screw is movably connected to the two fixed ears on the same side. The inner height limiting rod is slidably connected in the connecting groove. Both ends of the inner height limiting rod are fixedly connected to transmission blocks, and the two transmission blocks are threadedly connected to the second lead screws on both sides respectively.

[0009] By adopting the above technical solution, the inner height limit bar can be smoothly extended and retracted within the connecting groove, further expanding or reducing the height limit range, enabling the height limit device to have the ability to adjust the lateral width, adapt to road environments of different sizes, and be highly flexible, significantly improving the efficiency and safety of road and bridge traffic management.

[0010] Preferably, the lower end of the outer height limiting sleeve is fixedly welded with outer height limiting upright plates on both the left and right sides, and the opposing ends of the two outer height limiting upright plates are provided with guide grooves that pass through from front to back.

[0011] Preferably, the lower end of the inner height limiting rod is integrally formed with an inner height limiting plate, the inner height limiting plate is slidably connected between two outer height limiting plates, and both the left and right ends of the inner height limiting plate are integrally formed with guide strips, and the two guide strips are slidably connected in the guide grooves on the same side.

[0012] By adopting the above technical solution, the guide strip on the inner height limiting plate is slidably connected to the guide groove inside the outer height limiting plate, ensuring the stability of the inner height limiting rod's operation and avoiding jamming or deviation.

[0013] Preferably, a scale is fixedly installed on the right end of the column, and the scale is set perpendicular to the mounting base plate.

[0014] By adopting the above technical solution, combined with the intuitive height reference provided by the ruler, operators can accurately set the height limit value.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. By extending the main body design, starting the No. 2 forward and reverse motor allows the inner height limit bar to extend and retract smoothly within the connecting groove, further expanding or reducing the height limit range. At the same time, the guide strip on the inner height limit plate slides and the guide groove inside the outer height limit plate, ensuring the stability of the inner height limit bar's operation and preventing jamming or deviation. This gives the height limit device the ability to adjust its lateral width, adapting to different road environments, providing high flexibility, and significantly improving the efficiency and safety of road and bridge traffic management.

[0017] 2. By using the No. 1 forward and reverse motor and the No. 1 lead screw together, the slider moves up and down along the slide groove, driving the outer height limit sleeve to move synchronously. Combined with the intuitive height reference provided by the scale, the operator can accurately set the height limit value, which not only improves the applicability of the equipment, but also simplifies the operation process, ensuring that the road height limit needs can be quickly met in different scenarios, and effectively ensuring traffic safety. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a road height restriction device for road and bridge transportation according to the present invention;

[0019] Figure 2 This is a schematic diagram of the height-limiting mechanism of a road height-limiting device for road and bridge transportation according to the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the extended main body of a road height restriction device for road and bridge transportation according to the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the outer height limiting sleeve of a road height limiting device for road and bridge transportation according to this utility model.

[0022] In the diagram: 1. Column; 2. Mounting base plate; 3. Slide groove; 4. No. 1 forward / reverse motor; 5. No. 1 lead screw; 6. Height limiting mechanism; 7. Scale; 8. Sliding block; 9. Outer height limiting sleeve; 91. Fixing lug; 10. Counterweight; 11. Connecting groove; 12. Extension body; 121. Inner height limiting rod; 122. Transmission block; 123. No. 2 forward / reverse motor; 124. No. 2 lead screw; 125. Inner height limiting plate; 126. Guide bar; 13. Outer height limiting plate; 14. Guide groove. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Please see Figure 1-4 This utility model provides a technical solution:

[0027] A road height restriction device for road and bridge transportation includes a column 1, a mounting base plate 2 fixedly connected to the lower end of the column 1, a sliding groove 3 with front and rear passage provided on the upper part of the column 1, a first forward and reverse motor 4 fixedly installed on the upper end of the column 1, a first lead screw 5 fixedly connected to the output end of the first forward and reverse motor 4, the first lead screw 5 being movably installed in the sliding groove 3, and a height restriction mechanism 6 being threadedly connected to the first lead screw 5, and the height restriction mechanism 6 being slidably connected to the sliding groove 3.

[0028] In this embodiment, the height limiting mechanism 6 includes a slider 8, which is slidably connected in the groove 3 and threadedly connected to the lead screw 5. A counterweight 10 is fixedly installed at the rear end of the slider 8, and an outer height limiting sleeve 9 is fixedly connected at the front end of the slider 8. A connecting groove 11 is opened at the front end of the outer height limiting sleeve 9. The left and right ends and the lower end of the connecting groove 11 are open structures. An extension body 12 is slidably connected in the connecting groove 11. A scale 7 is fixedly installed at the right end of the column 1, and the scale 7 is set perpendicular to the mounting base plate 2.

[0029] The above solution involves the use of a forward and reverse motor 4 and a lead screw 5 to move the slider 8 up and down along the slide groove 3, which in turn drives the outer height limit sleeve 9 to move synchronously. Combined with the intuitive height reference provided by the scale 7, the operator can accurately set the height limit value. This not only improves the applicability of the equipment but also simplifies the operation process, ensuring that the road height limit requirements can be quickly met in different scenarios, and effectively protecting traffic safety.

[0030] In this embodiment, two fixing ears 91 are fixedly welded to both the left and right ends of the outer height limiting sleeve 9, and the two fixing ears 91 located on the same side are distributed front and back; the extension body 12 includes an inner height limiting rod 121 and a second forward and reverse motor 123. The second forward and reverse motor 123 is provided with two motors and is fixedly connected to the fixing ears 91 on the left and right sides respectively. The output end of the second forward and reverse motor 123 is fixedly connected to a second lead screw 124, and the second lead screw 124 is movably connected to the two fixing ears 91 on the same side. The inner height limiting rod 121 is slidably connected in the connecting groove 11, and the left and right ends of the inner height limiting rod 121 are... Each is fixedly connected with a transmission block 122, and the two transmission blocks 122 are respectively threaded to the second lead screw 124 on both sides; the lower end of the outer height limiting sleeve 9 is fixedly welded with an outer height limiting plate 13 on both the left and right sides, and the opposing ends of the two outer height limiting plates 13 are opened with a guide groove 14 that passes through from front to back; the lower end of the inner height limiting rod 121 is integrally formed with an inner height limiting plate 125, which is slidably connected between the two outer height limiting plates 13, and the left and right ends of the inner height limiting plate 125 are integrally formed with guide strips 126, and the two guide strips 126 are slidably connected in the guide groove 14 on the same side.

[0031] Through the above scheme: by extending the main body 12, the second forward and reverse motor 123 is activated, and the inner height limiting rod 121 can smoothly extend and retract within the connecting groove 11, further expanding or reducing the height limit range. At the same time, the guide strip 126 on the inner height limiting plate 125 is slidably connected to the guide groove 14 inside the outer height limiting plate 13, ensuring the stability of the inner height limiting rod 121's operation and avoiding jamming or deviation. This gives the height limiting device the ability to adjust its lateral width, adapting to road environments of different sizes, and providing high flexibility, significantly improving the efficiency and safety of road and bridge traffic management.

[0032] It should be noted that this utility model is a road height restriction device for road and bridge transportation. During use, firstly, the entire device is fixed in the designated position by the mounting base 2 at the lower end of the column 1 to ensure the stability and safety of the height restriction device. Then, the first forward and reverse motor 4 is started, and its output end drives the first lead screw 5 to rotate. Since the first lead screw 5 is threadedly connected to the slider 8, and the slider 8 is restricted to sliding within the groove 3, the slider 8 will move up and down along the groove 3. The movement of the slider 8 will drive the outer height restriction sleeve 9 to move up and down synchronously, thereby adjusting the height of the height restriction. At the same time, the scale 7 can intuitively display the current height position of the height restriction mechanism 6, which is convenient for operators. The height limit value is precisely set. If it is necessary to expand the height limit range or adjust the width, the No. 2 forward and reverse motors 123 on both sides can be started simultaneously. The No. 2 forward and reverse motors 123 drive the No. 2 lead screw 124 to rotate, so that the transmission block 122 moves left and right along the No. 2 lead screw 124. The movement of the transmission block 122 causes the inner height limit rod 121 to slide in the connecting groove 11, thereby realizing the lateral extension and retraction of the extension body 12. In addition, the inner height limit plate 125 and its guide strip 126 slide in the guide groove 14 of the two outer height limit plates 13 to ensure the smooth operation of the inner height limit rod 121. This effectively realizes the adjustable length of the extension body 12, which is convenient for height restriction of roads of different sizes and has high flexibility.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A road height restriction device for road and bridge transportation, comprising a column (1), characterized in that: The lower end of the column (1) is fixedly connected to the mounting base plate (2), and the upper part of the column (1) is provided with a sliding groove (3) that passes through the front and back. The upper end of the column (1) is fixedly installed with a first forward and reverse motor (4). The output end of the first forward and reverse motor (4) is fixedly connected to a first lead screw (5). The first lead screw (5) is movably installed in the sliding groove (3). The first lead screw (5) is threadedly connected to a height limiting mechanism (6), and the height limiting mechanism (6) is slidably connected to the sliding groove (3). The height limiting mechanism (6) includes a slider (8), which is slidably connected in the groove (3) and threadedly connected to the lead screw (5). A counterweight (10) is fixedly installed at the rear end of the slider (8), and an outer height limiting sleeve (9) is fixedly connected at the front end of the slider (8). A connecting groove (11) is opened at the front end of the outer height limiting sleeve (9). The left and right ends and the lower end of the connecting groove (11) are open structures. An extension body (12) is slidably connected in the connecting groove (11).

2. The road height restriction device for road and bridge transportation according to claim 1, characterized in that: The outer height limiting sleeve (9) has two fixed ears (91) fixedly welded to both the left and right ends, and the two fixed ears (91) located on the same side are distributed in front and behind.

3. The road height restriction device for road and bridge transportation according to claim 1, characterized in that: The extended body (12) includes an inner height limiting rod (121) and a second forward and reverse motor (123). The second forward and reverse motor (123) has two parts and is fixedly connected to the left and right fixed ears (91) respectively. The output end of the second forward and reverse motor (123) is fixedly connected to a second lead screw (124), and the second lead screw (124) is movably connected to the two fixed ears (91) on the same side. The inner height limiting rod (121) is slidably connected in the connecting groove (11). Both ends of the inner height limiting rod (121) are fixedly connected to transmission blocks (122), and the two transmission blocks (122) are threadedly connected to the second lead screw (124) on both sides respectively.

4. A road height restriction device for road and bridge transportation according to claim 1, characterized in that: The lower end of the outer height limiting sleeve (9) is fixedly welded with outer height limiting upright plates (13) on both the left and right sides, and the two outer height limiting upright plates (13) have guide grooves (14) that pass through each other.

5. A road height restriction device for road and bridge transportation according to claim 3, characterized in that: The lower end of the inner height limiting rod (121) is integrally formed with an inner height limiting plate (125). The inner height limiting plate (125) is slidably connected between two outer height limiting plates (13). The left and right ends of the inner height limiting plate (125) are integrally formed with guide strips (126), and the two guide strips (126) are slidably connected in the guide grooves (14) on the same side.

6. A road height restriction device for road and bridge transportation according to claim 1, characterized in that: A scale (7) is fixedly installed on the right end of the column (1), and the scale (7) is set perpendicular to the mounting base plate (2).

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