CN206410643U - A kind of device quickly measured for method road surface thickness of digging pit - Google Patents

Abstract

The utility model discloses a device for quickly measuring the thickness of road surfaces by digging pits, which comprises a main ruler and a sliding ruler; scale lines are arranged on the scale surface of the main ruler along its length direction, and the "0 scale" end of the main ruler is A fixed base is vertically connected, and the fixed base is equipped with a bubble to detect whether the fixed base is horizontal; the sliding ruler is slidably installed on the main ruler through the insertion groove; the sliding ruler slides up and down along the length direction of the main ruler, and is kept with the main ruler vertical; the sliding ruler extends outward along the horizontal direction to the left and right ends of the insertion groove, and a symmetrical scale is formed; the scale of the scale is perpendicular to the scale line. The utility model provides an accurate and high-efficiency device for measuring the thickness of a road surface by a digging method, which is simple in structure, intuitive and convenient, and greatly improves work efficiency.

Description

A device for rapid measurement of pavement thickness by excavation method

technical field

The utility model relates to the technical field of engineering detection, in particular to a device for rapid measurement of road surface thickness detection by a digging method.

Background technique

During the construction of each layer of the pavement, the thickness of the base layer or the gravel pavement can be measured by the digging method. The practice in practice is to level the bottom of the pit after digging the pit, place the steel ruler horizontally across the two sides of the pit, use another measuring tool such as a steel ruler or caliper to extend vertically to the bottom of the pit in the middle of the pit, and measure the depth of the pit. The distance from the bottom to the steel ruler is the thickness of the inspection layer.

This method has three disadvantages: 1. The measurement process is cumbersome and the efficiency is not high; 2. It is difficult to ensure that the two steel rulers are perpendicular to each other during the operation; 3. Whether the bottom of the pit is smooth and whether the measurement position is The middle part of the pit is difficult to realize only by naked eye observation, and the error is relatively large.

Utility model content

The main technical problem to be solved by the utility model is to provide an accurate and high-efficiency device for measuring the thickness of the road surface by digging a hole, which has a simple structure, is intuitive and convenient, and greatly improves the working efficiency.

The technical solution adopted by the utility model to solve the technical problems is: a device for rapid measurement of road surface thickness by digging pits, including a main ruler 2 and a sliding ruler 1; Scale 5, the "0 scale" end of the main ruler 2 is vertically connected to a fixed base 3, and the fixed base is equipped with a bubble 4 that detects whether the fixed base is horizontal; the sliding ruler 1 is slidably installed on the main ruler 2 through the insertion groove; The sliding ruler slides up and down along the length direction of the main ruler 2, and remains perpendicular to the main ruler 2; the left and right ends of the sliding ruler 1 to the insertion groove extend outward along the horizontal direction to form a symmetrical scale 7; the scale The scale of ruler 7 is perpendicular to scale 5.

In a preferred embodiment: the outer wall of the insertion groove of the sliding ruler 1 is provided with a screw hole connected to the insertion groove, and one end of a screw rod is inserted into the insertion groove through the screw hole, and is connected with the main ruler 2 Push to fix or separate to release the limit.

In a preferred embodiment: the insertion groove includes a planar section, two ends of the planar section extend vertically outwards with a rib, and the end of the rib extends horizontally toward the direction of the other rib to form a platform; The plane section, rib and platform together surround the insertion groove; there is a gap between the opposite ends of the two platforms.

In a preferred embodiment: the screw holes are pierced on the surface of the plane section.

In a preferred embodiment: the cross section of the insertion groove is consistent with the cross section shape of the main scale.

In a preferred embodiment: the length of the sliding ruler 1 is 35cm, the range of the scale 7 is 14cm, and the accuracy is 1mm.

In a preferred embodiment: the ruler body of the main ruler 2 is provided with a continuous scale 5, the "0 scale" is at the lower end, the measuring range is 40cm, and the measurement accuracy is 1mm.

Compared with the prior art, the utility model has the following beneficial effects:

The sliding ruler of the utility model is installed on the main ruler through the insertion slot, and is always perpendicular to the main ruler, so the measurement accuracy is high;

The fixed base of the utility model is equipped with a level measuring vacuole, which can quickly judge whether the bottom of the pit is level, reduces the error caused by direct measurement that cannot be identified by naked eyes when the bottom of the pit is uneven, and improves the measurement accuracy;

The symmetrical scale on the sliding ruler of the utility model can assist in judging whether the measurement position is in the middle of the pit, which reduces the error caused by naked eye observation and improves the measurement accuracy;

The utility model enables the sliding ruler to slide up and down along the body of the main ruler, and can be quickly adjusted on site according to the actual depth of the pit, thereby greatly improving the work efficiency.

Description of drawings

Fig. 1 is the front view of main ruler and sliding ruler of the present utility model;

Fig. 2 is the plan view of sliding ruler of the present utility model;

Fig. 3 is a scale view of the main ruler of the present invention.

Fig. 4 is a scale view of the sliding ruler of the present invention.

detailed description

The utility model will be described in detail below in conjunction with the accompanying drawings.

Referring to accompanying drawing 1～Fig. 4, the utility model comprises a main ruler 2 for measuring, and continuous scale 5 is marked on the main ruler 2, and measuring range is 40cm, and measurement accuracy is 1mm; A sliding ruler 1 for auxiliary measurement, sliding There is an insertion slot in the middle of the ruler 1, and the upper and lower openings are just enough to ensure that the main ruler 2 is inserted and installed, so that the sliding ruler 1 is absolutely perpendicular to the main ruler 2, and the measurement accuracy is high, and it is ensured that the sliding ruler 1 can slide up and down along the body of the main ruler 2. High efficiency; the fixed base 3 of the main ruler 2 is equipped with a liquid bubble 4 for measuring the level, which can be used to quickly determine the flatness of the bottom of the pit and whether it meets the standard requirements; the sliding ruler 1 is provided with symmetrical Scale 7, measuring range is 14cm, and precision is 1mm, and the scale of described scale 7 is perpendicular to scale 5. The scale 7 can assist in judging whether the measurement position is in the middle of the pit, which helps to improve the accuracy of the measurement.

The outer wall of the insertion groove of the sliding ruler 1 is provided with a screw hole connected to the insertion groove, and one end of a screw rod is inserted into the insertion groove through the screw hole, and is fixed or separated from the top of the main ruler 2 to release the limit. . Therefore, the sliding and fixing of the sliding ruler 1 can be realized by tightening or loosening the screw rod.

The insertion groove includes a plane section, two ends of the plane section vertically extend a rib outward, and the end of the rib extends horizontally toward another rib to form a platform; the plane section, the rib and the platform The inserting slots are jointly surrounded; there is a gap between the opposite ends of the two platforms. The screw holes are pierced on the surface of the plane section.

The cross section of the insertion slot is consistent with the cross section shape of the main scale.

The utility model is a device for rapid measurement of road surface thickness by digging pits. When used on the spot, first visually judge the position of the middle part of the pit bottom, then extend the fixed base 3 of the main ruler 2 into this position, and move the sliding ruler 1 downward. Until the two scales 7 of sliding ruler 1 contact the ground outside the two edges of the opening end of the pit, fix the contact point between the scale of one arm and the edge of the pit and turn the other arm, when the scale 7 of the other arm shows the maximum reading , it can be determined that the sliding ruler 1 is located on the diameter line of the cross-sectional contour of the pit; at this time, it is only necessary to move the fixed base 3 horizontally along the diameter line. The "0 scale" end is just in the middle of the bottom of the pit; then the bubble 4 of the fixed base 3 can be used to judge whether the bottom of the pit is flat; if it is flat, it can be measured, and only need to read the main ruler 2 corresponding to the lower edge of the sliding ruler 1 when measuring The scale 5 on the top is the depth of the pit or the thickness of the road surface. After the measurement is completed, the sliding ruler 1 can be disassembled from the main ruler 2, which is convenient for organizing and carrying.

The above is only a preferred embodiment of the utility model, so the scope of implementation of the utility model cannot be limited accordingly, that is, the equivalent changes and modifications made according to the patent scope of the utility model and the contents of the specification should still belong to Within the scope covered by the utility model.

Claims (7)

1. A kind of device that is used for digging method pavement thickness fast measurement, comprises main ruler (2) and sliding ruler (1), it is characterized in that: the ruler face of main ruler (2) is provided with scale along its length direction ( 5), the "0 scale" end of the main ruler (2) is vertically connected to a fixed base (3), and the fixed base is equipped with a bubble (4) for detecting whether the fixed base is horizontal; the sliding ruler (1) slides through the insertion groove Installed on the main ruler (2); the sliding ruler slides up and down along the length direction of the main ruler (2), and is kept perpendicular to the main ruler (2); A symmetrical scale (7) extends outward in the horizontal direction; the scale of the scale (7) is perpendicular to the scale (5). 2. The device for quickly measuring the thickness of the road surface according to claim 1, characterized in that: the outer wall of the insertion groove of the sliding ruler (1) is provided with a screw hole connected to the insertion groove, and one end of a screw rod passes through the The screw hole is inserted into the insertion slot, and is fixed against the abutment of the main ruler (2) or separated to release the limit. 3. The device for quickly measuring the thickness of road surface by excavation method according to claim 2, characterized in that: the insertion groove comprises a plane section, the two ends of the plane section vertically extend outward a rib, the end of the rib A platform extends horizontally towards the direction of the other convex rib; the plane section, the convex rib and the platform together surround the insertion slot; there is a gap between the opposite ends of the two platforms. 4 . The device for quickly measuring the thickness of road surface by excavation method according to claim 3 , characterized in that: the screw hole is pierced on the surface of the plane section. 5 . 5 . The device for quickly measuring the thickness of road surface by excavation method according to claim 4 , characterized in that: the cross section of the insertion groove is consistent with the cross section shape of the main scale. 6 . 6. The device for rapid measurement of road surface thickness by excavation method according to claim 1, characterized in that: the length of the sliding ruler (1) is 35cm, the range of the scale (7) is 14cm, and the accuracy is 1mm . 7. The device for quickly measuring the thickness of road surface by excavation method according to claim 6, characterized in that: the chi body of the main ruler (2) is provided with continuous scale (5), "0 scale" is at the lower end, and the range is 40cm, the measurement accuracy is 1mm.