A road width detection device

Abstract

The utility model discloses a road width detection device, including mount pad, inner rod, rod cover and pivot, the mount pad top is fixed with first screw rod along the verticality, the inner rod one end rotationally covered in first screw rod, and the recess is seted up to the other end of inner rod, and the recess rear side inner wall is fixed with rack, and the inner rod top is provided with reflection element, and the inner rod top is provided with the through groove that passes through up and down along left and right direction, the rod cover one end slidingly covered in the other end of inner rod, and the rod cover top is close to the side of inner rod and is provided with the through -hole that passes through up and down, and the through -hole rotationally passes through and is equipped with round bar, and the round bar lower extreme passes through the through groove, and the round bar bottom is fixed with gear, and the gear is engaged with rack, and the round bar top is fixed with ratchet wheel, and the rod cover top is provided with locking mechanism, and the rod cover top right side is fixed with range finder, the pivot rotationally passes through and is equipped with in the other end of rod cover, and the walking wheel is seted up to the pivot below.

Description

Technical Field

[0001] This utility model belongs to the field of road surface detection technology, specifically relating to a road width detection device. Background Technology

[0002] If the width of a highway does not meet the specifications and design requirements after the highway construction is completed, the highway cannot fulfill its corresponding function. Therefore, it is necessary to test the width of the highway after construction. In practice, the width of the highway is often measured by stretching a measuring tape close to the road surface. However, when the measuring tape is not completely perpendicular to the direction of the highway, the measurement results will be inaccurate.

[0003] In the relevant prior art, Chinese patent with publication number CN217083574U discloses a highway driving lane width detection device. The device includes a support platform and a limiting platform. A long rod is perpendicularly inserted between the support platform and the limiting platform. A top rod parallel to the limiting platform is provided on the limiting platform. The above solution uses the top rod to press against the long rod to ensure that the long rod is perpendicular to the long direction of the road surface.

[0004] When there are guardrails on both sides of the road to be tested, the length of the long pole may be greater than the distance between the two guardrails, making the device unsuitable for situations where there are guardrails on both sides of the road, and thus limiting its applicable scenarios. Utility Model Content

[0005] The present invention aims to provide a road width detection device to solve the problem that the existing technology has limited applicable scenarios.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A road width detection device includes a mounting base, an inner rod, a rod sleeve, and a rotating shaft. A first screw is vertically fixed to the top of the mounting base. One end of the inner rod is rotatably sleeved on the first screw, and the other end of the inner rod has a groove. A rack is fixedly installed on the inner wall of the groove. A reflective element is installed at the top of the inner rod. A through groove runs vertically through the inner rod along its left-right direction. One end of the rod sleeve is slidably sleeved on the other end of the inner rod. A through hole runs vertically through the top of the rod sleeve near the inner rod. A round rod rotatably passes through the through hole, with its lower end passing through the through groove. A gear is fixedly installed at the bottom of the round rod, meshing with the rack. A ratchet is fixedly installed at the top of the round rod. A locking mechanism is installed at the top of the rod sleeve. A rangefinder is fixedly installed on the right side of the top of the rod sleeve. The rotating shaft rotatably passes through the other end of the rod sleeve, and a traveling wheel is installed below the rotating shaft.

[0007] The principle and effects of this technical solution: Fix the mounting base to one side of the road, align the first screw shaft with the inner edge of the road, loosen the locking mechanism, and move the sleeve away from the first screw until the shaft shaft aligns with the inner edge of the other side of the road, and the inner rod forms a clear angle with the road direction. Drive the shaft to move along the inner edge of the other side of the road. At this time, the sleeve moves closer to the first screw, the rack drives the gear to rotate forward, the gear drives the ratchet to rotate forward, and the locking mechanism does not restrict the ratchet to rotate forward. When the inner rod is perpendicular to the road direction, the left end of the sleeve is closest to the first screw. Continue to drive the shaft to move, and the sleeve moves away from the first screw. The rack drives the gear and ratchet to rotate in the opposite direction. Because the locking mechanism restricts the ratchet to rotate in the opposite direction, the sleeve cannot move away from the first screw. At this time, the rangefinder can be activated. The measurement results plus the distance between the reflective element and the first screw shaft and the distance between the rangefinder and the shaft shaft are the road width.

[0008] With the above settings, on the one hand, the principle of the shortest perpendicular segment between two parallel lines is used to ensure that the inner pole is perpendicular to the road when measuring the width of the roadway, thus ensuring the accuracy of the test results. On the other hand, since the pole sleeve can slide along the inner pole, this utility model can be applied to roads with guardrails on both sides, making it suitable for more usage scenarios.

[0009] In this utility model, the locking mechanism includes a first fixed rod, a second fixed rod, a pawl, and a compression spring. The first fixed rod and the second fixed rod are both vertically fixedly installed on the top of the rod sleeve near the ratchet. One end of the pawl is rotatably sleeved on the first fixed rod, and the other end of the pawl is engaged with the ratchet. One end of the compression spring is fixedly connected to the side wall of the pawl away from the ratchet, and the other end of the compression spring is fixedly connected to the side wall of the second fixed rod.

[0010] In this invention, a lever is fixedly mounted vertically at the top of the pawl. With this configuration, before measurement, the lever can be moved to disengage the pawl from the ratchet, allowing the sleeve to move away from the first screw.

[0011] In this utility model, a nut is sleeved on the first screw below the inner rod, and a second screw is threaded through the bottom of the rotating shaft along the axial direction of the rotating shaft. The traveling wheel is fixedly installed at the bottom of the second screw.

[0012] The principle and effects of this technical solution: Rotate the nut to make it move up and down along the first screw, which in turn drives the inner rod and the sleeve to move up and down to adjust the distance between the inner rod and the sleeve and the road surface. Then rotate the second screw so that the traveling wheel just contacts the ground.

[0013] By adjusting the above settings, the ground clearance of the inner pole and the pole sleeve can be adjusted, making this utility model applicable to situations where there is a protrusion in the center of the highway, thus improving the applicability of this utility model.

[0014] In this utility model, a first connecting ear is provided on the front side wall of the inner rod, and a second connecting ear is provided on the front side wall of the rod sleeve. The lower edges of the first and second connecting ears are at the same height. A lead screw is threaded through the top of both the first and second connecting ears. The distance between the first connecting ear and the axis of the first lead screw is the same as the distance between the second connecting ear and the axis of the second lead screw. Multiple adjustment knobs are threaded through the top of the mounting base along the circumferential direction of the first lead screw.

[0015] The principle and effects of this technical solution: Before measurement, thread the two lead screws through the first connecting lug and the second connecting lug respectively, with the two lead screws protruding from the first connecting lug and the second connecting lug by the same length. After the tension rod is placed in the predetermined position, rotate the adjustment knob so that the bottom of the two lead screws just contacts the road surface.

[0016] The above settings ensure that the inner pole and pole sleeve remain parallel to the road surface, thus improving the accuracy of measurement data.

[0017] In this invention, both lead screws have rotatable ball bearings at their bottoms. This design reduces resistance between the lead screw and the road surface, facilitating the movement of the pivot, and also prevents the lead screw from damaging the road surface.

[0018] In this invention, a notch is provided at the top of the inner rod, and the reflective element is detachably secured in the notch. This design prevents damage to the reflective element during storage, thus extending the service life of the invention.

[0019] In this invention, a positioning rod is threadedly inserted into the bottom of the mounting base along the axial direction of the first screw. During measurement, the positioning rod is rotated so that its bottom contacts the road surface and its axis aligns with the inner edge of the road. This arrangement ensures that the axis of the first screw is located on the inner edge of the road, improving the accuracy of the measurement data. Attached Figure Description

[0020] Figure 1 This is an isometric view of the overall structure of this utility model; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 This is an exploded view of the components of this utility model; Figure 4 for Figure 3 Enlarged view at point B in the middle; Figure 5 This is a front sectional view of the present invention; Figure 6 for Figure 5 Enlarged view of point C. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments: The reference numerals in the accompanying drawings include: 10, mounting base; 11, first screw; 111, nut; 112, positioning rod; 12, adjusting knob; 20, inner rod; 21, groove; 211, rack; 22, notch; 221, reflective element; 23, through groove; 24, first connecting lug; 241, lead screw; 242, ball; 30, rod sleeve; 31, through hole; 32, round rod; 321, gear; 322, ratchet; 33, first fixing rod; 34, second fixing rod; 35, pawl; 351, lever; 36, compression spring; 37, second connecting lug; 38, rangefinder; 40, rotating shaft; 41, second screw; 411, traveling wheel.

[0022] Example: As attached Figure 1-6 As shown, this utility model discloses a road width detection device, including a mounting base 10, an inner rod 20, a rod sleeve 30, and a rotating shaft 40. A first screw 11 is vertically fixed to the top of the mounting base 10. One end of the inner rod 20 is rotatably sleeved on the first screw 11, and the other end of the inner rod 20 has a groove 21. A rack 211 is fixedly installed on the inner wall of the rear side of the groove 21. A reflective element 221 is installed on the top of the inner rod 20, and a through groove 23 is provided on the top of the inner rod 20 in the left-right direction. One end of the rod sleeve 30 is slidably sleeved on the inner rod. At the other end of the rod sleeve 30, a through hole 31 is provided on the top of the rod sleeve 30 near the inner rod 20. A round rod 32 is rotatably inserted through the through hole 31. The lower end of the round rod 32 passes through the through groove 23. A gear 321 is fixedly installed at the bottom of the round rod 32. The gear 321 meshes with the rack 211. A ratchet 322 is fixedly installed at the top of the round rod 32. A locking mechanism is provided at the top of the rod sleeve 30. A rangefinder 38 is fixedly installed on the right side of the top of the rod sleeve 30. The rotating shaft 40 is rotatably inserted through the other end of the rod sleeve 30. A traveling wheel 411 is provided below the rotating shaft 40.

[0023] In this embodiment, the locking mechanism includes a first fixing rod 33, a second fixing rod 34, a pawl 35, and a compression spring 36. The first fixing rod 33 and the second fixing rod 34 are both vertically fixed on the top of the rod sleeve 30 near the ratchet 322. One end of the pawl 35 is rotatably sleeved on the first fixing rod 33, and the other end of the pawl 35 is engaged with the ratchet 322. One end of the compression spring 36 is fixedly connected to the side wall of the pawl 35 away from the ratchet 322, and the other end of the compression spring 36 is fixedly connected to the side wall of the second fixing rod 34.

[0024] In this embodiment, a lever 351 is fixedly provided vertically at the top of the pawl 35.

[0025] In this embodiment, a nut 111 is sleeved on the first screw 11 below the inner rod 20, and a second screw 41 is threaded through the bottom of the rotating shaft 40 along the axial direction of the rotating shaft 40. The traveling wheel 411 is fixedly installed at the bottom of the second screw 41.

[0026] In this embodiment, the front sidewall of the inner rod 20 is provided with a first connecting lug 24, and the front sidewall of the rod sleeve 30 is provided with a second connecting lug 37. The lower edges of the first connecting lug 24 and the second connecting lug 37 are at the same height. The top of the first connecting lug 24 and the second connecting lug 37 are threaded with a lead screw 241. The distance between the first connecting lug 24 and the axis of the first lead screw 11 and the distance between the second connecting lug 37 and the axis of the second lead screw 41 are the same. The top of the mounting base 10 is threaded with multiple adjusting knobs 12 along the circumference of the first lead screw 11.

[0027] In this embodiment, both lead screws 241 are rotatably provided with ball bearings 242 at their bottoms.

[0028] In this embodiment, a notch 22 is provided at the top of the inner rod 20, and the reflective element 221 is detachably snapped into the notch 22.

[0029] In this embodiment, a positioning rod 112 is threaded into the bottom of the mounting base 10 along the axial direction of the first screw 11.

[0030] The specific implementation process is as follows: Fix the mounting base 10 to one side of the road, align the axis of the first screw 11 with the inner edge line of one side of the road, loosen the locking mechanism, and move the sleeve 30 away from the first screw 11 until the axis of the rotating shaft 40 aligns with the inner edge line of the other side of the road, and the inner rod 20 forms a clear angle with the road direction, driving the rotating shaft 40 to move along the inner edge line of the other side of the road. At this time, the sleeve 30 moves closer to the first screw 11, the rack 211 drives the gear 321 to rotate forward, the gear 321 drives the ratchet 322 to rotate forward, and the locking mechanism does not restrict the forward rotation of the ratchet 322. When the inner rod 20 is perpendicular to the road direction, the left end of the rod sleeve 30 is closest to the first screw 11. It continues to drive the rotating shaft 40 to move, and the rod sleeve 30 moves away from the first screw 11. The rack 211 drives the gear 321 and ratchet 322 to rotate in the opposite direction. Since the locking mechanism restricts the ratchet 322 from rotating in the opposite direction, the rod sleeve 30 cannot move away from the first screw 11. At this time, the rangefinder 38 can be activated. The measurement results, plus the distance between the reflective element 221 and the axis of the first screw 11 and the distance between the rangefinder 38 and the axis of the rotating shaft 40, are respectively used to obtain the road width.

[0031] Rotate nut 111 to make nut 111 move up and down along first screw 11, driving inner rod 20 and rod sleeve 30 to move up and down, so as to adjust the distance between inner rod 20 and rod sleeve 30 and road surface. Then rotate second screw 41 so that the traveling wheel 411 just contacts the ground.

[0032] Before measurement, the two lead screws 241 are threaded through the first connecting ear 24 and the second connecting ear 37 respectively, and the lengths of the two lead screws 241 protruding from the first connecting ear 24 and the second connecting ear 37 are the same. After the rod sleeve 30 is stretched to the predetermined position, the adjustment knob 12 is rotated so that the bottom of the two lead screws 241 just contacts the road surface.

[0033] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A road width detection device, characterized in that, include: Mounting base, wherein a first screw is fixedly installed vertically on the top of the mounting base; The inner rod has one end rotatably sleeved on the first screw, and the other end of the inner rod has a groove. A rack is fixedly installed on the inner wall of the rear side of the groove. A reflective element is installed on the top of the inner rod, and a through groove is provided on the top of the inner rod along the left and right directions. A rod sleeve, one end of which is slidably fitted onto the other end of an inner rod. A through hole is provided on the top of the rod sleeve near the inner rod, through which a round rod is rotatably inserted. The lower end of the round rod passes through a through groove. A gear is fixedly installed at the bottom of the round rod, which meshes with a rack. A ratchet is fixedly installed at the top of the round rod. A locking mechanism is provided at the top of the rod sleeve. A rangefinder is fixedly installed on the right side of the top of the rod sleeve. A rotating shaft is rotatably mounted on the other end of a rod sleeve, and a traveling wheel is provided below the rotating shaft.

2. The road width detection device as described in claim 1, characterized in that: The locking mechanism includes a first fixed rod, a second fixed rod, a pawl, and a compression spring. The first fixed rod and the second fixed rod are both vertically fixed on the top of the rod sleeve near the ratchet. One end of the pawl is rotatably sleeved on the first fixed rod, and the other end of the pawl is engaged with the ratchet. One end of the compression spring is fixedly connected to the side wall of the pawl away from the ratchet, and the other end of the compression spring is fixedly connected to the side wall of the second fixed rod.

3. The road width detection device as described in claim 2, characterized in that: A lever is fixedly installed vertically at the top of the pawl.

4. The road width detection device as described in claim 1, characterized in that: A nut is fitted on the first screw below the inner rod, and a second screw is threaded through the bottom of the shaft along the shaft axis. The traveling wheel is fixedly installed at the bottom of the second screw.

5. The road width detection device as described in claim 4, characterized in that: The inner rod has a first connecting lug on its front side wall and a second connecting lug on its front side wall. The lower edges of the first and second connecting lugs are at the same height. A lead screw is threaded through the top of both the first and second connecting lugs. The distance between the first connecting lug and the axis of the first lead screw is the same as the distance between the second connecting lug and the axis of the second lead screw. Multiple adjustment knobs are threaded through the top of the mounting base along the circumferential direction of the first lead screw.

6. The road width detection device as described in claim 5, characterized in that: Both lead screws have rotatable ball bearings at their bottom.

7. The road width detection device as described in claim 1, characterized in that: The inner rod has a notch at the top, and the reflective element is detachably snapped into the notch.

8. The road width detection device as described in claim 1, characterized in that: A positioning rod is threaded into the bottom of the mounting base along the axial direction of the first screw.

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