Height limiting device for road and bridge building construction

Abstract

The utility model relates to the technical field of road and bridge building construction, and discloses a height limiting device for road and bridge building construction, which comprises two upright posts, mounting seats are movably mounted on the upright posts, an adjusting rod I is movably mounted on the mounting seat on one side, and an adjusting rod II is movably mounted on the mounting seat on the other side. A driving assembly is arranged on the mounting base, a triggering assembly is arranged on the first adjusting rod, and a connecting width adjusting assembly is arranged between the two stand columns. By arranging the driving assembly and the triggering assembly, when a transport vehicle passes through the space between the two stand columns, if building materials transported by the transport vehicle are too high and a driver does not know the site, the first adjusting rod and the second adjusting rod possibly collide with goods, and the building materials extrude the first adjusting rod and the second adjusting rod at the moment; the trigger assembly triggers and drives the first adjusting rod and the second adjusting rod to rotate and avoid through the driving assembly, the problem that the whole stand column is broken and damaged due to hard pulling of materials transported by a truck is solved, and the use safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of road and bridge construction, in particular to a height limiting device used for road and bridge construction. Background Art

[0002] Usually, during the construction of roads and bridges, transport vehicles are required to carry construction materials to the construction site for the construction of roads and bridges. In general, some areas of the construction site of roads and bridges will be equipped with limited height poles to limit the height of the transport vehicles to prevent accidents.

[0003] When the transport vehicle passes through the height limit pole, if the construction materials transported by the transport vehicle are too high and the excess value is small, and the driver is not familiar with the height limit on site, when the transport vehicle passes through the height limit pole, the transported materials will come into contact with the height limit pole and squeeze and pull the height limit pole in the direction of the transport vehicle's forward movement. The height limit pole may break and be damaged after being pulled hard by the transport vehicle, and the overall safety of use needs to be further improved.

[0004] For this reason, we propose a height limiting device for road and bridge construction. Utility Model Content

[0005] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a height limiting device used in road and bridge construction.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a height limiting device for road and bridge construction, comprising a column, wherein there are two columns, a mounting seat is movably mounted on the column, an adjusting rod 1 is movably mounted on the mounting seat on one side, and an adjusting rod 2 is movably mounted on the mounting seat on the other side, a driving assembly is arranged on the mounting seat, a trigger assembly is arranged on the adjusting rod 1, and a connecting width adjustment assembly is arranged between the two columns;

[0007] The driving assembly includes a second gear, which is rotatably mounted on a mounting seat, and a first gear is rotatably mounted on the mounting seat;

[0008] The trigger assembly comprises a squeeze plate, which is movably mounted on the first adjusting rod and the second adjusting rod. Connecting frames are fixedly mounted on both sides of the first adjusting rod and the second adjusting rod, and contact sensors are fixedly mounted on the connecting frames.

[0009] Preferably, a screw rod 2 is rotatably mounted on the column, the mounting seat is driven by the screw rod 2, and the adjusting rod 1 is movably connected to the adjusting rod 2.

[0010] Preferably, the gear 1 and the gear 2 are meshed with each other, the gear 1 is fixedly connected to the adjusting rod 1, and when the gear 2 rotates one circle, the gear 1 rotates half a circle.

[0011] Preferably, the trigger assembly also includes a spring, which is fixedly mounted on a connecting frame, on which a movable block is movably mounted, the movable block is fixedly connected to one end of the spring, the movable block is fixedly connected to the corresponding extrusion plate, a limiting shaft is fixedly mounted on the connecting frame, the limiting shaft is sleeved with the spring, and the limiting shaft is movably connected to the movable block.

[0012] Preferably, the connecting width adjustment component includes a movable seat, the movable seat is fixedly mounted on the bottom of the column, a base is provided at the bottom of the movable seat, the movable seat is slidably mounted on the base, screw rods are rotatably mounted on both sides of the base, the movable seat is driven and slidably connected to the base by the rotation of screw rods, a horizontal column one is fixedly mounted on the column on one side, a horizontal column two is fixedly mounted on the column on the other side, a movable frame is fixedly mounted on the horizontal column one, the movable frame extends all the way to the horizontal column two and is slidably connected to the horizontal column two, an installation box is fixedly mounted on the adjusting rod one, and an anti-drop block is movably mounted inside the installation box.

[0013] Preferably, the second adjusting rod is provided with a slot for engaging with the anti-dropping block, a connecting component is provided between the first cross column and the first adjusting rod, and a connecting component is also provided between the second cross column and the second adjusting rod.

[0014] Preferably, the connecting assembly includes a mounting sleeve, which is fixedly mounted on horizontal column one, and the mounting sleeve is also fixedly mounted on horizontal column two, adjusting rod one and adjusting rod two. A movable ball is rotatably mounted on the mounting sleeve, and a telescopic rod is fixedly mounted between two adjacent movable balls in the vertical direction, and both ends of the telescopic rod are respectively fixedly connected to the corresponding movable balls.

[0015] The utility model provides a height limiting device for road and bridge construction, which has the following improvements and advantages compared with the prior art: by providing a driving component and a triggering component, when a transport vehicle passes between two columns, if the building materials are too high, the building materials and the extrusion plate contact each other, the extrusion plate is squeezed to one side, the spring is compressed and exerts a reverse force to play a buffering effect, thereby preventing the transport materials from being directly squeezed on the adjustment rod 1 and the adjustment rod 2, and when the transport materials continue to squeeze the extrusion plate forward, the contact sensor and the extrusion plate contact each other, and at this time the servo motor is controlled to drive the gear 2 to rotate and mesh with the gear 1 to drive the gear 1 to rotate so as to drive the adjustment rod 1 and the adjustment rod 2 to rotate in the forward direction of the transport vehicle to avoid. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0017] Figure 1 A schematic diagram of the structure of a height limiting device for road and bridge construction proposed by the utility model;

[0018] Figure 2 A schematic diagram of the top view of a height limiting device for road and bridge construction proposed by the utility model;

[0019] Figure 3 This is a schematic diagram of the installation of a driving assembly in a height limiting device for road and bridge construction proposed by the utility model;

[0020] Figure 4 for Figure 3 The enlarged schematic diagram of point A in the middle;

[0021] Figure 5 This is a schematic diagram of the installation of the first and second adjusting rods in a height limiting device for road and bridge construction proposed by the utility model;

[0022] Figure 6 The utility model discloses a structural schematic diagram of a connecting frame in a height limiting device used in road and bridge construction.

[0023] Legend:

[0024] 1. Column; 2. Moving seat; 3. Base; 4. Screw rod 1; 5. Horizontal column 1; 6. Horizontal column 2; 7. Moving frame; 8. Adjustment rod 1; 9. Adjustment rod 2; 10. Mounting seat; 11. Mounting sleeve; 12. Active ball; 13. Telescopic rod; 14. Gear 1; 15. Gear 2; 16. Screw rod 2; 17. Mounting box; 18. Anti-slip block; 19. Connecting frame; 20. Extrusion plate; 21. Contact sensor; 22. Spring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] A height limiting device for road and bridge construction, such as Figure 1 - Figure 6As shown, it includes a column 1, and there are two columns 1. A screw rod 2 16 is rotatably installed on the column 1, and the screw rod 2 16 is driven by a servo motor. The servo motor is electrically connected to the external controller. A mounting seat 10 is movably installed on the column 1, and the mounting seat 10 is driven by the screw rod 2 16. An adjusting rod 1 8 is movably installed on the mounting seat 10 on one side, and an adjusting rod 2 9 is movably installed on the mounting seat 10 on the other side. The adjusting rod 1 8 is movably connected with the adjusting rod 2 9. A driving component is arranged on the mounting seat 10, and the trigger driving component can drive the adjusting rod 1 8 and the adjusting rod 2 9 to rotate. The adjusting rod 1 8 is arranged on the trigger component. A connecting width adjustment component is arranged between the two columns 1, and the connecting width adjustment component can adjust the distance between the two columns 1; by arranging the driving component and the trigger component, the column 1 is placed in an area where a height limit is required at the construction site of a road and bridge building, and a transport vehicle passes through the column 1. At the same time, the height of the transport vehicle can be limited by adjusting rod 18 and adjusting rod 29. At the same time, the height of adjusting rod 18 and adjusting rod 29 can be adjusted by driving screw rod 2 16 to rotate and drive mounting seat 10 to rise and fall according to the actual situation on site, so as to be suitable for areas with different height requirements on the construction site. At the same time, the spacing between the two columns 1 can be adjusted by connecting the width adjustment component to be suitable for areas with different width requirements on the construction site. When the transport vehicle passes between the two columns 1, if the construction materials transported by the transport vehicle are too high and the driver is not familiar with the site, adjusting rod 18 and adjusting rod 29 may collide with the goods. At this time, the construction materials squeeze adjusting rod 18 and adjusting rod 29, and the trigger component is triggered and drives adjusting rod 18 and adjusting rod 29 to rotate and avoid through the driving component, thereby avoiding the problem of overall breakage and damage of column 1 caused by hard pulling of materials transported by the truck, thereby improving the safety of use.

[0027] Furthermore, the driving component includes gear 2 15, which is rotatably installed on the mounting base 10, and the gear 2 15 is driven by a servo motor, and the servo motor is electrically connected to the external controller. A gear 14 is rotatably installed on the mounting base 10, and the gear 14 and the gear 2 15 are meshed with each other. The gear 14 is fixedly connected to the adjusting rod 1 8, and the gear 2 15 rotates one circle, and the gear 14 rotates half a circle; by providing a driving component, when the transport vehicle passes between the two columns 1, if the building materials are too high, the building materials and the adjusting rod 1 8 and the adjusting rod 2 9 are in contact and squeezed with each other, and the trigger component is used to trigger the control to start the gear 2 15 to rotate and mesh with the gear 1 14 to drive the adjusting rod 1 8 and the adjusting rod 2 9 to rotate to one side to avoid the problem of the column 1 being broken by hard pulling.

[0028] Further, the trigger component includes an extrusion plate 20, which is movably mounted on the adjusting rod 1 8 and the adjusting rod 2 9, and a connecting frame 19 is fixedly mounted on both sides of the adjusting rod 1 8 and the adjusting rod 2 9, and a spring 22 is fixedly mounted on the connecting frame 19, and a movable block is movably mounted on the connecting frame 19, and the movable block is fixedly connected to one end of the spring 22, and the movable block is fixedly connected to the corresponding extrusion plate 20, and a limit shaft is fixedly mounted on the connecting frame 19, and the limit shaft is sleeved with the spring 22, and the limit shaft is movably connected to the movable block, and a contact sensor 21 is fixedly mounted on the connecting frame 19, and the contact sensor 21 is electrically connected to the external controller; by providing a trigger component, When the transport vehicle passes between two columns 1, if the building materials are too high, the building materials and the extrusion plate 20 come into contact with each other, and the extrusion plate 20 is squeezed to one side. The spring 22 is compressed and exerts a reverse force to play a buffering effect, thereby preventing the transport materials from being directly squeezed on the adjusting rod 1 8 and the adjusting rod 2 9. When the transport materials continue to squeeze the extrusion plate 20 forward, the contact sensor 21 comes into contact with the extrusion plate 20. At this time, the servo motor drives the gear 2 15 to rotate and mesh with the gear 1 14 to drive the gear 14 to rotate, so as to drive the adjusting rod 1 8 and the adjusting rod 2 9 to rotate in the forward direction of the transport vehicle to avoid the problem of the column 1 being broken and damaged due to the hard pulling of the transport vehicle.

[0029] Further, the connection width adjustment component includes a moving seat 2, which is fixedly mounted on the bottom of the column 1, and a base 3 is provided at the bottom of the moving seat 2. The moving seat 2 is slidably mounted on the base 3. Screw rods 4 are rotatably mounted on both sides of the base 3, and the screw rods 4 are driven by a servo motor. The servo motor is electrically connected to the external controller, and the moving seat 2 is slidably connected to the base 3 by the rotation drive of the screw rod 4. A horizontal column 5 is fixedly mounted on the column 1 on one side, and a horizontal column 2 6 is fixedly mounted on the column 1 on the other side. A moving frame 7 is fixedly mounted on the horizontal column 5, and the moving frame 7 extends all the way to the horizontal column 2 6 and is slidably connected to the horizontal column 2 6. An installation box 17 is fixedly mounted on the adjusting rod 8, and an anti-falling block 18 is movably mounted inside the installation box 17, and the anti-falling block 18 is driven by an electric telescopic rod. The electric telescopic rod is electrically connected to the external controller, and a bayonet for engaging with the anti-dropping block 18 is provided on the adjusting rod 2 9. The electric telescopic rod pushes the anti-dropping block 18 downward into the bayonet to realize the positioning of the adjusting rod 1 8 and the adjusting rod 2 9. A connecting component is provided between the horizontal column 1 5 and the adjusting rod 1 8, and a connecting component is also provided between the horizontal column 2 6 and the adjusting rod 2 9. By providing a connecting width adjustment component, the two columns 1 are placed on the construction site. If it is necessary to adjust the spacing between the two columns 1, the electric telescopic rod is controlled to drive the anti-dropping block 18 to disengage from the adjusting rod 2 9, and then the servo motor is controlled to drive the screw rod 1 4 to rotate to drive the moving seat 2 to move to an appropriate position, so as to adjust the spacing between the two columns 1 to adapt to the restrictions on different widths at different construction sites.

[0030] Furthermore, the connecting assembly includes a mounting sleeve 11, which is fixedly mounted on the horizontal column 1 5. The mounting sleeve 11 is also fixedly mounted on the horizontal column 2 6, the adjusting rod 1 8 and the adjusting rod 2 9. The mounting sleeve 11 is a hollow structure, and the cross section of the mounting sleeve 11 is three-quarters of a circle. An active ball 12 is rotatably mounted on the mounting sleeve 11, and a telescopic rod 13 is fixedly mounted between two adjacent active balls 12 in the vertical direction. Both ends of the telescopic rod 13 are respectively fixedly connected to the corresponding active balls 12; by providing the connecting assembly, when the adjusting rod 1 8 and the adjusting rod 2 9 rotate to avoid in the forward direction of the transport vehicle, the adjusting rod 1 8 and the adjusting rod 2 9 rotate to one side and drive the telescopic rod 13 to be stretched. When the adjusting rod 1 8 and the adjusting rod 2 9 are reset, the telescopic rod 13 is reset. The telescopic rod 13 can improve the stability of the adjusting rod 1 8 and the adjusting rod 2 9 during installation and rotation.

[0031] The working principle of the utility model is as follows: the column 1 is placed in an area where a height restriction is required at a road and bridge construction site. When a transport vehicle passes by the column 1, the adjusting rod 18 and the adjusting rod 29 can limit the height of the transport vehicle. At the same time, the mounting seat 10 can be raised and lowered by driving the screw rod 2 16 to rotate according to the actual situation on site to adjust the height of the adjusting rod 1 8 and the adjusting rod 2 9 so as to be suitable for areas on the construction site that do not have height requirements. If it is necessary to adjust the distance between the two columns 1, the electric telescopic rod is controlled to drive the anti-detachment block 18 to disengage from the adjusting rod 2 9, and then the servo motor is controlled to drive the screw rod 1 4 to rotate to drive the moving seat 2 to move to an appropriate position to adjust the distance between the two columns 1 so as to be suitable. Due to the different width restrictions on different construction sites, when the transport vehicle passes between two columns 1, if the building materials are too high, the building materials and the extrusion plate 20 come into contact with each other, and the extrusion plate 20 is squeezed to one side. The spring 22 is compressed and exerts a reverse force to play a buffering effect, thereby preventing the transport materials from being directly squeezed on the adjusting rod 1 8 and the adjusting rod 2 9. When the transport materials continue to squeeze the extrusion plate 20 forward, the contact sensor 21 comes into contact with the extrusion plate 20. At this time, the servo motor drives the gear 2 15 to rotate and mesh with the gear 1 14 to drive the gear 14 to rotate so as to drive the adjusting rod 1 8 and the adjusting rod 2 9 to rotate in the forward direction of the transport vehicle to avoid the breakage and damage of the column 1 caused by the hard pulling of the transport vehicle.

[0032] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A height limiting device for road and bridge construction, comprising a column (1), wherein there are two columns (1), and wherein: A mounting seat (10) is movably mounted on the column (1), an adjusting rod (8) is movably mounted on the mounting seat (10) on one side, and an adjusting rod (9) is movably mounted on the mounting seat (10) on the other side, a driving component is arranged on the mounting seat (10), a trigger component is arranged on the adjusting rod (8), and a connecting width adjustment component is arranged between the two columns (1); The driving assembly comprises a second gear (15), the second gear (15) is rotatably mounted on a mounting seat (10), and a first gear (14) is rotatably mounted on the mounting seat (10); The trigger assembly comprises a squeeze plate (20), the squeeze plate (20) being movably mounted on the first adjusting rod (8) and the second adjusting rod (9), connecting frames (19) being fixedly mounted on both sides of the first adjusting rod (8) and the second adjusting rod (9), and a contact sensor (21) being fixedly mounted on the connecting frame (19).

2. A height limiting device for road and bridge construction according to claim 1, characterized in that: The column (1) is rotatably mounted with a second screw rod (16), the mounting seat (10) is driven by the second screw rod (16), and the first adjustment rod (8) is movably connected with the second adjustment rod (9).

3. A height limiting device for road and bridge construction according to claim 1, characterized in that: The gear 1 (14) and the gear 2 (15) are meshed with each other, and the gear 1 (14) is fixedly connected to the adjusting rod 1 (8). When the gear 2 (15) rotates one circle, the gear 1 (14) rotates half a circle.

4. A height limiting device for road and bridge construction according to claim 1, characterized in that: The trigger assembly also includes a spring (22), the spring (22) is fixedly mounted on the connecting frame (19), a movable block is movably mounted on the connecting frame (19), the movable block is fixedly connected to one end of the spring (22), the movable block is fixedly connected to the corresponding extrusion plate (20), a limit shaft is fixedly mounted on the connecting frame (19), the limit shaft is sleeved with the spring (22), and the limit shaft is movably connected to the movable block.

5. The height limiting device for road and bridge construction according to claim 1 is characterized in that: The connection width adjustment component comprises a moving seat (2), the moving seat (2) is fixedly mounted on the bottom of the column (1), a base (3) is arranged at the bottom of the moving seat (2), the moving seat (2) is slidably mounted on the base (3), screw rods (4) are rotatably mounted on both sides of the base (3), the moving seat (2) is slidably connected to the base (3) by the rotational drive of the screw rods (4), a horizontal column (5) is fixedly mounted on the column (1) on one side, a horizontal column (6) is fixedly mounted on the column (1) on the other side, a moving frame (7) is fixedly mounted on the horizontal column (5), the moving frame (7) extends all the way to the horizontal column (6) and is slidably connected to the horizontal column (6), an installation box (17) is fixedly mounted on the adjustment rod (8), and an anti-dropping block (18) is movably mounted inside the installation box (17).

6. A height limiting device for road and bridge construction according to claim 5, characterized in that: The second adjusting rod (9) is provided with a bayonet for engaging with the anti-dropping block (18), a connecting assembly is provided between the first cross column (5) and the first adjusting rod (8), and a connecting assembly is also provided between the second cross column (6) and the second adjusting rod (9).

7. A height limiting device for road and bridge construction according to claim 6, characterized in that: The connection assembly comprises a mounting sleeve (11), the mounting sleeve (11) being fixedly mounted on the first horizontal column (5), the second horizontal column (6), the first adjusting rod (8) and the second adjusting rod (9) being also fixedly mounted with the mounting sleeve (11), a movable ball (12) being rotatably mounted on the mounting sleeve (11), a telescopic rod (13) being fixedly mounted between two adjacent movable balls (12) in the vertical direction, and two ends of the telescopic rod (13) being fixedly connected with the corresponding movable balls (12) respectively.

Images