Guardrail center height rapid measuring device

Abstract

The utility model discloses a guardrail center height rapid measuring device, and solves the problem that an existing measuring device cannot realize adjustment. The device comprises an installation support, a laser range finder, a horizontal bubble device and an adjusting assembly, the installation support comprises a vertical part, a horizontal part and a hook, the vertical part and the horizontal part are arranged perpendicular to each other, the hook is arranged at the outer end of the horizontal part of the vertical part, a long-strip-shaped hole is formed in the vertical part, and the adjusting assembly is fixed to the long-strip-shaped hole. A horizontal bubble device is installed on the upper surface of the horizontal part, a laser range finder is fixedly installed on the lower surface of the horizontal part, and a laser head of the laser range finder is vertically arranged downwards. The device has the function design of adjusting the verticality and the levelness, and the verticality of the laser range finder can be accurately adjusted through the adjustment, so that the accuracy of measured data can be ensured. Rapid installation and convenient adjustment can be realized, one person can operate, the measurement cost is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of guardrail center height measurement technology. Background Technology

[0002] With the rapid development of urban transportation infrastructure, guardrails, as an important component of road safety facilities, are receiving increasing attention for their installation and maintenance. The center height of the corrugated guardrail beams needs to be measured during highway completion acceptance, routine maintenance, and in the event of a safety accident. The center height of the guardrail is one of the key parameters ensuring its safety performance. Therefore, quickly and accurately measuring the center height of guardrails (beams) has become an urgent problem to be solved in the field of traffic engineering. Traditional measurement methods usually require manual use of measuring tools, which is not only inefficient and prone to large errors, but also susceptible to human factors, making it impossible to guarantee the accuracy of the measurement results. Therefore, developing a device that can quickly and accurately measure the center height of guardrails is of great significance for improving the efficiency of road safety facility installation and maintenance. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a portable, easy-to-use, and highly accurate guardrail center height measuring device. This device has a self-adjusting function, which can reduce measurement costs and improve work efficiency.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows:

[0005] A rapid height measurement device for guardrail centerlines includes a mounting bracket, a laser rangefinder, a level bubble level, and an adjustment assembly. The mounting bracket comprises a vertical section, a horizontal section, and a hook. The vertical and horizontal sections are perpendicular to each other. The hook is located at the outer end of the horizontal section of the vertical section. An elongated hole is provided on the vertical section. The adjustment assembly is fixed at this elongated hole. The adjustment assembly includes a pair of nuts, a screw sleeve, and a long screw. The outer surface of the screw sleeve has external threads and is fitted with nuts. The two nuts, one in front of the other, fix the screw sleeve at the elongated hole. The interior of the screw sleeve has a through-hole with internal threads. The long screw is threaded and installed within the threaded hole of the screw sleeve. A horizontal guide beam is mounted on the horizontal section. The laser rangefinder is mounted on the horizontal guide beam via a slider, and the laser head of the laser rangefinder is vertically downwards.

[0006] Furthermore, the outer end of the long screw is provided with a plum blossom handle, and the inner end is an enlarged spherical body.

[0007] Furthermore, a triangular rib is provided at the right angle between the vertical part and the horizontal part.

[0008] Furthermore, flanges are provided on both sides of the horizontal part, the vertical part, and the hook.

[0009] Furthermore, the horizontal bubbler comprises two horizontal bubblers installed laterally and longitudinally.

[0010] Furthermore, the horizontal guide beam is arranged along the length of the guardrail, and the slider and the horizontal guide beam are slidably engaged through a straight groove and a Z-shaped clip.

[0011] Furthermore, the rapid height measurement device for the center of the guardrail includes a mounting bracket, a horizontal guide beam, a laser rangefinder, a level bubble generator, and an adjustment component. The mounting brackets are characterized by having at least two brackets connected together by the horizontal guide beam at their horizontal sections. The vertical section of each mounting bracket has an elongated hole. The adjustment component is fixed at this elongated hole and includes a pair of nuts, a screw sleeve, and a long screw. The outer surface of the screw sleeve has external threads and is fitted with nuts. The two nuts, one in front of the other, fix the screw sleeve at the elongated hole. The screw sleeve has a through-hole internal thread. The long screw is threaded and installed in the screw sleeve's threaded hole. The horizontal section of the mounting bracket has a level bubble generator installed. The laser rangefinder slides against the horizontal guide beam via a slider. The laser head of the laser rangefinder is vertically downward.

[0012] Furthermore, the slider and the horizontal guide beam are slidably engaged by a straight groove and a Z-shaped clamp.

[0013] The beneficial effects of this utility model are:

[0014] This device features vertical and horizontal adjustment functions, which allow for precise vertical adjustment of the laser rangefinder, thereby ensuring the accuracy of the measurement data.

[0015] The device has a simple structure, allowing for quick installation and convenient adjustment. It can be operated by a single person, reducing measurement costs and improving work efficiency. Attached Figure Description

[0016] Figure 1 This is a diagram showing the usage status of this device.

[0017] Figure 2 This is a three-dimensional view of the device.

[0018] Figure 3 This is the front view of the device.

[0019] Figure 4 This is a cross-sectional view of the device.

[0020] Figure 5 A 3D view of the mounting bracket.

[0021] Figure 6 This is a structural diagram of Example 2.

[0022] Figure 7 This is a diagram illustrating the use of the dual mounting brackets.

[0023] In the picture:

[0024] 10 Mounting bracket, 11 Vertical section, 12 Horizontal section, 13 Hook, 14 Triangular rib, 15 Flanged edge, 16 Long strip hole

[0025] 20 laser rangefinders,

[0026] 30 Adjusting assembly, 31 Nut, 32 Screw sleeve, 33 Long screw.

[0027] 40 level bubbler

[0028] 50 Horizontal guide beam, 52 Anchorage, 51 Z-shaped clamp,

[0029] 60 sliders

[0030] 00 Wave-shaped guardrail. Detailed Implementation

[0031] The main content of this study is the design and development of a rapid measurement device for the center height of guardrails based on laser ranging technology. The device mainly includes core components such as a mounting bracket, a laser rangefinder, and a bubble level. Through a rational design of the mounting bracket, it is equipped with tilt adjustment functionality. The bubble level is installed on the rangefinder to ensure that the laser rangefinder is perpendicular to the road surface. Adjusting the bubble level ensures the horizontal and vertical accuracy of the mounting bracket during the measurement process.

[0032] The following is in conjunction with the instruction manual appendix. Figure 1 To be continued Figure 5 The structure of Embodiment 1 of this utility model will be described in detail.

[0033] Example 1

[0034] Mounting bracket 10 is formed from stainless steel sheet through a bending process, and is a complete sheet metal part. Structurally, the mounting bracket includes a vertical part 11 and a horizontal part 12, which are vertically arranged and maintain a 90-degree angle. At the outer end of the horizontal part, that is, the end away from the vertical part, a hook 13 is provided. This hook is used to engage with the upper edge of the corrugated guardrail to form a quick-connect and temporary fixing structure, which can realize rapid installation and disassembly.

[0035] Furthermore, a triangular rib plate 14 is provided at the 90-degree angle between the vertical and horizontal parts to reinforce the vertical angle.

[0036] Furthermore, flanges 15 are provided on both sides of the horizontal part, the vertical part, and the hook. The presence of these flanges increases the rigidity of the mounting bracket, that is, the overall stability of the mounting bracket is stronger.

[0037] An elongated hole 16 is provided on the vertical part 11 for installing the adjustment component 30.

[0038] Horizontal Bubble 40: Install horizontal and vertical horizontal bubblers on the mounting bracket to ensure that the mounting bracket remains horizontal at all times.

[0039] Laser rangefinder 20: A level bubble is installed on the laser rangefinder to ensure that the laser beam is always perpendicular to the ground, used for rechecking the levelness of the laser rangefinder. To ensure that the laser beam of the laser rangefinder is not obstructed by the long screw 33, the laser rangefinder and the adjustment components are spatially offset during installation to avoid the long screw.

[0040] Furthermore, the width of the aforementioned horizontal section 12 is widened to increase the space available for installing the laser rangefinder.

[0041] The adjusting assembly 30 includes a pair of nuts 31, a screw sleeve 32, and a long screw 33. The screw sleeve is specially designed; specifically, its outer surface has a threaded design. This thread mechanically engages with the two nuts, securing the screw sleeve to the vertical part of the mounting bracket 10 with the two nuts positioned one in front of the other. When position adjustment is needed, the nuts 31 are loosened to adjust the height of the screw sleeve. This adjustment ensures that the inner end of the long screw falls precisely within the trough of the corrugated guardrail 00.

[0042] The screw sleeve 32 has a through internal threaded hole. The long screw 33 is installed in the threaded hole of the screw sleeve through a threaded connection. The distance between the screw and the wave guardrail can be adjusted by the engagement length, thereby adjusting the levelness of the horizontal part in the mounting bracket.

[0043] Furthermore, the outer end of the long screw is equipped with a plum blossom handle, and the inner end is designed as an enlarged spherical body. The enlarged spherical body cooperates with and positions the corrugated guardrail. The spherical body can reduce the possibility of scratching the anti-corrosion layer of the corrugated guardrail at this end.

[0044] This device was used for testing in a real road environment to verify the practicality and accuracy of the measuring device.

[0045] Example 2

[0046] refer to Figure 6In this embodiment, the usage method is changed based on Embodiment 1. Specifically, a horizontal guide beam 50 is added between the aforementioned mounting bracket and the laser rangefinder. This horizontal guide beam is fixedly connected to the horizontal part of the mounting bracket via anchoring 52 or bolt connection. After installation, the horizontal guide beam has downward-flipping Z-shaped clips 51, and a slider 60 is mounted on the horizontal guide beam via sliding Z-shaped clips on both sides. The corresponding slider has Z-shaped slots, allowing it to slide horizontally along the horizontal guide. A laser rangefinder 20 is mounted on this slider. The laser beam of the laser rangefinder is always perpendicular to the ground for height measurement, and the rangefinder readings are recorded.

[0047] Furthermore, magnets are respectively installed on the laser rangefinder and the slider, and the magnetic attraction between the magnets enables rapid installation, that is, the laser rangefinder can be quickly separated from the slider.

[0048] In a further improvement, this embodiment uses two mounting brackets, as shown in the reference. Figure 7 Two mounting brackets are installed in different positions and connected by a horizontal guide beam. The horizontal guide beam can be several meters long, allowing the slider to slide quickly along it to measure the height of different points. For example, ten points can be measured within a 5-meter range, and the average value can be taken. This average value more accurately reflects the height of the guardrail above the ground.

[0049] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Without departing from the spirit of the present utility model, all modifications and improvements to the present utility model by those skilled in the art should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A device for quickly measuring the center height of a guardrail, comprising a mounting bracket, a laser range finder, a horizontal bubble device and an adjusting assembly, characterized in that: The mounting bracket comprises a vertical part, a horizontal part and a hook, the vertical part and the horizontal part are arranged perpendicularly to each other, the hook is arranged at the horizontal part outer end of the vertical part, a long hole is arranged on the vertical part, the adjusting assembly is fixed at the long hole, the adjusting assembly comprises a pair of nuts, a screw sleeve, a long screw, wherein the outer surface of the screw sleeve is provided with external threads and is installed with nuts, the two nuts are arranged in front of and behind the screw sleeve to fix the screw sleeve at the long hole, the inside of the screw sleeve is provided with a through internal threaded hole, the long screw is installed in the threaded hole of the screw sleeve through threaded connection, the horizontal part is installed with a horizontal guide beam, the laser range finder is installed with the horizontal guide beam through a sliding block, and the laser head of the laser range finder is arranged vertically downward.

2. The device for quick measurement of the center height of a guardrail according to claim 1, characterized in that, The outer end of the long screw is provided with a key handle, and the inner end is a bulging spherical body.

3. The device of claim 1, wherein, A triangular rib plate is arranged at the right angle position between the vertical part and the horizontal part.

4. The device of claim 1, wherein, Flanges are arranged on both sides of the horizontal part, the vertical part and the hook.

5. The device of claim 1, wherein, The horizontal bubble device comprises two horizontal bubble devices installed transversely and longitudinally.

6. The device of claim 1, wherein, The horizontal guide beam is arranged along the length direction of the guardrail, and the sliding block and the horizontal guide beam are slidably connected through a straight line clamping groove and a Z-shaped clamping.

7. A device for quickly measuring the center height of a guardrail, comprising a mounting bracket, a horizontal guide beam, a laser range finder, a horizontal bubble and an adjusting assembly, characterized in that: The mounting bracket is at least two, and the horizontal parts of the two mounting brackets are connected into one through a horizontal guide beam, the vertical part of the mounting bracket is provided with a long hole, the adjusting assembly is fixed at the long hole, the adjusting assembly comprises a pair of nuts, a screw sleeve and a long screw, wherein the outer surface of the screw sleeve is provided with external threads and is installed with nuts, the two nuts are arranged in front of and behind the screw sleeve to fix the screw sleeve at the long hole, the inside of the screw sleeve is provided with a through internal threaded hole, the long screw is installed in the threaded hole of the screw sleeve through threaded connection, the horizontal part of the mounting bracket is installed with a horizontal bubble device, the laser range finder is slidably connected with the horizontal guide beam through a sliding block, and the laser head of the laser range finder is arranged vertically downward.

8. The device of claim 7, wherein, The sliding block and the horizontal guide beam are slidably connected through a straight line clamping groove and a Z-shaped clamping.

Images