CN217688736U - Quick positioner of timber compoment stress wave detection measurement station - Google Patents

Abstract

The utility model discloses a rapid positioning device for detecting and measuring points of stress waves of wooden components, which comprises a positioning bracket, a reference positioning rubber belt and an equally divided positioning rubber belt. The positioning bracket includes a frame plate and a length perpendicular to the frame plate. Two moving clamp bars installed on the shelf plate in the direction and movably, the shelf plate is provided with a spirit level, the middle of the shelf plate in the length direction is provided with a laser transmitter, and the laser light emitted by the laser transmitter is parallel to the The movable clamp rod is provided with a first hole strip; the two ends of the reference positioning rubber belt are each provided with a sleeve hole, and the movable clamp rod can be inserted into the sleeve hole, and the The middle of the reference positioning rubber belt is also provided with a middle hole, the middle hole is located at the center of the connecting line of the two sleeve holes, and the equally divided positioning rubber belt is provided with several holes for equal distance along the length direction. The utility model can assist the stress wave detector to quickly and accurately determine the measuring points of the wooden components to be measured.

Description

A rapid positioning device for stress wave detection and measurement points of wooden components

technical field

The utility model specifically relates to a fast positioning device for stress wave detection and measuring points of wooden components.

Background technique

Most of the ancient buildings in our country are wood structures or brick-wood structures, and the construction time is relatively long. Years of environmental impact and various additional loads caused by activation and utilization are prone to damage of different types and degrees: such as wood aging, component decay, and joint pull-out The mortise and tenon, the column feet are rotten, etc., which will lead to the reduction of the bearing capacity and structural performance of the structure, seriously affecting its safety and life. Therefore, it is particularly important to carry out the detection of the internal damage state of wooden components of ancient buildings.

The stress wave detector is a major equipment for the non-destructive testing of wooden structures in ancient buildings. It uses specific induction probes to emit and receive stress wave vibration beams propagating in the wood, and measures the propagation time between the induction probes to determine the wood material. and internal damage.

The measuring points of the stress wave generally need to be evenly distributed along the test section of the wooden member to be tested. Especially, for the beam and column members in ancient buildings, the test section is often vertical or horizontal. Taking the column as an example, the size of different columns is different, and the equal division distance will also be different according to the number of measuring points. Under normal circumstances, it is necessary to use a tape measure to measure the circumference of the column test section, then calculate the equal division, and then draw the measurement point. On the one hand, it is often difficult to keep the path surrounded by the tape measure on the same horizontal plane; on the other hand, when there are a large number of different equalization distances of different sizes to be determined, the calculation is more cumbersome.

Utility model content

The purpose of the utility model is to provide a fast positioning device for stress wave detection and measuring points of wooden components, which can assist the stress wave detector to quickly and accurately determine the measuring points of wooden components to be tested.

The purpose of this utility model can be realized through the following technical solutions.

A fast positioning device for stress wave detection and measuring points of wooden components, including a positioning bracket, a reference positioning rubber belt and an equal positioning rubber belt. Two movable clamping rods on the shelf, a level is arranged on the shelf, a laser emitter is arranged in the middle of the longitudinal direction of the shelf, and the laser emitted by the laser emitter is parallel to the movable clamping rod , the first hole bar is provided on the moving clamping rod; a sleeve hole is respectively provided at both ends of the reference positioning rubber belt, and the moving clamping rod can be inserted into the sleeve hole, and the reference positioning rubber belt There is also a middle hole in the middle, and the middle hole is located at the center of the line connecting the two sleeve holes, and the equal-division positioning rubber belt is provided with several holes for equal distance division along the length direction.

The working principle of the utility model is as follows:

First, set the hole of the reference positioning rubber belt on the movable clamping rod, hold the frame plate, and move the two movable clamping rods along the length direction of the frame plate, so that the movable clamping rod clamps the wooden member to be tested, and then manually adjust the tilt of the frame plate degree and horizontal position until the level shows level, and turn on the laser transmitter to let the laser pass through the middle hole of the reference positioning rubber belt. For a laser projection point on the wooden member, use a pen to pass through the first hole bar to mark the positions of the two tangent points and the position of the laser projection point to obtain three reference points, and then stretch the equal-divided positioning rubber band to make the three reference points The points correspond to the holes of the equally divided positioning rubber band, and then the distance between the three reference points is further divided into equal parts. Using the utility model to determine the measuring points can ensure that all measuring points are on the same horizontal plane, and obtain the distance equal points accurately and quickly, omitting the step of calculating the equal points in the prior art to save time.

The utility model also has the following preferred designs:

The shelf board of the present invention includes an upper board and a lower board, a slide rail is installed between the upper board and the lower board, and one end of the movable clamping rod is slidably connected to the slide rail.

The mobile clamping rod of the utility model includes a roller, a wheel shaft, a base and a clamping rod. The wheel shaft is arranged on the base, the roller is installed on the wheel shaft, and the roller is installed on the slide rail. The clamping bar is fixedly connected with the base, and the first hole bar is provided on the clamping bar.

The spirit level of the present utility model is a bubble level, and the bubble level is installed at the center of the upper plate.

The length of the reference positioning rubber belt of the utility model is smaller than the diameter of the wooden component to be measured.

In the utility model, a second hole bar is provided between the holes of the equal-division positioning rubber belt, and distance equal-division marks are arranged between adjacent holes.

The equal-distance positioning rubber belt of the utility model is provided with three holes with equal distances, and a distance equal-division mark is set at the midpoint of the line connecting two adjacent holes.

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

By adopting the utility model, through the spirit level installed on the device, it can be ensured that the obtained measuring points are on the same horizontal plane, and the device can quickly and accurately obtain three reference points for equal division of distance, and then locate by equal division The rubber belt further obtains equal points with a smaller distance. Compared with the prior art, the utility model can omit the step of calculating the equal points in the prior art, and improve the efficiency of obtaining stress wave detection measuring points.

Description of drawings

Fig. 1 is a combined structural diagram of a fast positioning device for stress wave detection and measuring points of wooden components of the present invention;

Fig. 2 is a perspective view of the positioning bracket in Fig. 1;

Fig. 3 is a perspective view of the moving clamp bar in Fig. 2;

Fig. 4 is the three-dimensional view of a kind of benchmark positioning rubber belt that the utility model adopts;

Fig. 5 is a perspective view of a kind of equally divided positioning rubber belt adopted by the utility model;

Fig. 6 is a schematic diagram of determining three reference points by using a positioning bracket and a reference positioning rubber belt in an embodiment;

Fig. 7 is a principle diagram of determining distance equisection points by using the bisection positioning rubber belt in the embodiment.

Explanation of reference signs: 1. Positioning bracket, 2. Reference positioning rubber belt, 3. Equally divided positioning rubber belt, 4. Shelf plate, 5. Bubble level, 6. Laser transmitter, 7. Slide rail, 8. Moving Clamp bar, 9, roller, 10, axle, 11, base, 12, clamp bar, 13, first hole bar, 14, sleeve hole, 15, middle hole, 16, hole, 17, second hole bar, 18. Divide distance mark, 19. Wood component to be tested, 20. First reference point, 21. Second reference point, 22. Third reference point.

Detailed ways

The technical solution of the utility model will be described in detail below in conjunction with the accompanying drawings and embodiments, so that those of ordinary skill in the art can better understand and implement the technical solution of the utility model.

As shown in Figures 1 to 7, a fast positioning device for stress wave detection and measuring points of wooden components includes a positioning bracket 1, a reference positioning rubber belt 2 and an equal positioning rubber belt 3, and the positioning bracket 1 includes a frame plate 4 and Vertical to the length direction of the frame plate 4 and movably installed on the two mobile clamping bars 8 on the frame plate 4, the frame plate 4 is provided with a spirit level. A laser emitter 6 is arranged in the middle of the length direction of the shelf plate 4, and the laser emitted by the laser emitter 6 is parallel to the moving clamping rod 8, and the moving clamping rod 8 is provided with a first hole bar 13, which is a long strip-shaped through hole. , which can be passed through by a marking pen; two ends of the reference positioning rubber belt 2 are respectively provided with a sleeve hole 14, and the movable clamping rod 8 can be inserted into the sleeve hole 14, and a middle hole 15 is also provided in the middle of the reference positioning rubber belt 2 , the middle hole 15 is located at the center of the line connecting the two sleeve holes 14, and the equally divided positioning rubber belt 3 is provided with several holes 16 for equally dividing the distance along the length direction.

As a preference, this embodiment further illustrates the technical content of the present invention by taking the determination of eight equally divided measuring points as an example.

As shown in Figure 2, the shelf plate 4 includes an upper plate and a lower plate, a slide rail 7 is installed between the upper plate and the lower plate, and one end of the movable clamping rod 8 is slidably connected to the slide rail 7, and the level is a bubble A level 5, a bubble level 5 is installed in the center of the upper plate.

Referring to Fig. 3, mobile clamp bar 8 comprises roller 9, wheel shaft 10, base 11 and clamp bar 12, described wheel shaft 10 is arranged on base 11, and roller 9 is installed on the wheel shaft 10, and roller 9 is installed on the slide rail 7, clamps The rod 12 is fixedly connected with the base 11 , and the clamp rod 12 is provided with a first hole bar 13 . In this embodiment, the length of the reference positioning rubber belt 2 is smaller than the diameter of the wood member 19 to be measured.

As shown in Figure 6, the using method of the present utility model is as follows:

1. Determine three reference points: first, set the sleeve hole 14 of the reference positioning rubber belt 2 on the movable clamp rod 8, hold the frame plate 4, and move the two movable clamp rods 8 along the length direction of the frame plate 4, so that the movable clamp The rod 8 clamps the wooden member 19 to be tested, and then manually adjusts the inclination and horizontal position of the frame plate 4 until the level shows the level. Specifically, when the bubble of the bubble level in Figure 6 is in the middle, the positioning bracket 1 is at the level and opened The laser emitter 6 makes the laser pass through the middle hole 15 of the reference positioning rubber belt 2, and at this time, two tangent points between the moving clamp bar 8 and the wooden component 19 to be measured and a laser beam irradiated on the wooden component 19 to be measured are obtained. For the projection point, a pen can pass through the first hole bar 13 to mark the positions of the two tangent points and the position of the laser projection point to obtain three reference points, namely the first reference point 20, the second reference point 21 and the third reference point 22 .

2. Determine the remaining aliquot points:

The equally spaced positioning rubber belt 3 of this embodiment is provided with three holes 16 equally spaced, and a second hole bar 17 is provided between the holes 16, and the midpoint of every two adjacent holes 16 is set. A distance bisects the mark 18. Stretch the equal-division positioning rubber belt 3, so that the three reference points marked on the wooden member 19 to be measured correspond to the holes 16 of the equal-division positioning rubber belt 3, and pass through it with a pen at the position corresponding to the distance from the equal division mark 18 The second hole bar 17 makes eight equally divided marking points on the wooden member 19 to be tested, so as to realize further equal division of the distance between the three reference points.

Similarly, move the positioning bracket 1 to the other side of the wooden member 19 to be tested, and use the same method to keep the two tangent points unchanged, adjust the level of the positioning bracket 1, and use the laser transmitter to position and mark The laser projection point on the other side is used as a reference point, and then the remaining eighth equalization marking points on the other side are obtained by using the equalization positioning rubber band 3 .

In other embodiments, the number of holes 16 of the equally divided positioning rubber belt 3 and the number of equally divided marks 18 between adjacent holes 16 can be adjusted according to the requirements of the stress wave detection measuring point, based on the three reference points Obtain more measuring points of equal parts, wherein the distance equal parts mark 18 can be marked with different symbols corresponding to different equal parts, such as the eight equal points are triangles, and the ten equal points are circles, so that one equal part can be used Position the rubber band 3 to obtain measuring points of different aliquots.

The foregoing embodiments are only preferred embodiments of the utility model, but not as limitations on the utility model. Any modification and improvement made on the basis of the concept of the utility model should fall within the protection scope of the utility model. The specific protection scope is subject to the description in the claims.

Claims (7)

1. A fast positioning device for stress wave detection and measuring points of wooden components, characterized in that: it includes a positioning bracket, a reference positioning rubber belt and an equal positioning rubber belt, and the positioning bracket includes a frame plate and a frame perpendicular to the frame plate. Two movable clamping rods are mounted on the shelf plate in the length direction, and a level is arranged on the shelf plate, and a laser emitter is arranged in the middle of the length direction of the shelf plate, and the laser emitted by the laser emitter is parallel to the On the movable clamping rod, a first hole bar is provided on the movable clamping rod; a sleeve hole is provided at both ends of the reference positioning rubber belt, and the movable clamping rod can be inserted into the sleeve hole. There is also a middle hole in the middle of the reference positioning rubber belt, and the middle hole is located at the center of the line connecting the two sleeve holes, and the equal positioning rubber belt is provided with a number of holes for equal distance division along the length direction. 2. The fast positioning device for stress wave detection and measuring points of wooden components according to claim 1, characterized in that: the frame board includes an upper board and a lower board, and a slide rail is installed between the upper board and the lower board , one end of the movable clamping rod is slidably connected to the slide rail. 3. The fast positioning device for stress wave detection and measuring points of wooden components according to claim 2, characterized in that: the movable clamping rod comprises a roller, a wheel shaft, a base and a clamping rod, and the wheel shaft is arranged on the base, The roller is installed on the axle, the roller is installed on the slide rail, the clamping rod is fixedly connected with the base, and the clamping rod is provided with the first hole. 4. The fast positioning device for stress wave detection and measuring points of wooden components according to claim 3, characterized in that: the level is a bubble level, and the bubble level is installed at the center of the upper plate. 5. The fast positioning device for stress wave detection and measuring points of wooden components according to any one of claims 1 to 4, wherein the length of the reference positioning rubber belt is smaller than the diameter of the wooden component to be tested. 6. The fast positioning device for stress wave detection and measuring points of wooden components according to claim 5, characterized in that: a second hole bar is opened between the holes of the equally divided positioning rubber belt, and between adjacent holes There is a distance equal mark between them. 7. The fast positioning device for stress wave detection and measuring points of wooden components according to claim 6, characterized in that: the equal positioning rubber belt is provided with three holes with equal distances, and every two adjacent holes are connected to each other. A distance bisection marker is set at the midpoint of the line.

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