CN220565294U - High strain detection sensor hole site positioner - Google Patents

Abstract

The utility model relates to a hole position positioning device of a high-strain detection sensor, which is characterized in that a triangular prism-shaped substrate is provided with a inferior cambered surface, the inferior cambered surfaces are fixedly connected with a punch, namely, the triangular of the substrate is fixedly connected with a punch with a cylindrical structure, the top end of the substrate is provided with a sinking groove, a level bubble is fixedly connected with the sinking groove, the bottom end of the punch is provided with a tip, the lower side of the punch is provided with a positioning piece, the positioning piece is arranged at the top end of a detection pile, and the horizontal state of the substrate is adjusted by the level bubble before hammering the punch. The hole position positioning device of the high-strain detection sensor has the advantages of improving the installation precision, improving the detection efficiency, saving the cost and the like.

Description

High strain detection sensor hole site positioner

Technical Field

The utility model relates to the technical field of high strain method detection pile body integrity tests, in particular to a hole site positioning device of a high strain detection sensor.

Background

At present, when the integrity of a pile body is detected by a high strain method, a force measuring mode of a strain sensor for detecting pile installation and a force measuring mode of an acceleration sensor for detecting hammer body installation are generally adopted. When a force measuring mode of a strain sensor is installed by adopting a detection pile, the specification prescribes the installation position and the distance between the sensors. In the detection procedure, the strain sensor should be tightly attached to the surface of the pile body when being installed, the sensor cannot slide when hammering, the initial strain value of the strain sensor is not larger than +/-20% of the measuring range of the strain sensor, and the horizontal distance between the strain sensor and the acceleration sensor is not larger than 100mm. In addition to the above specification, the horizontal distance between the strain sensor and the acceleration sensor in the detection technical specification is 70+/-10 mm. Because the strain sensor needs to be provided with an upper hole site and a lower hole site, the allowable deviation of the installation hole site is +/-1.5 mm, because the strain sensor is a precise sensor, the measuring range is generally +/-1000 mu epsilon, and the installation hole site is generally drilled by a drilling machine, and the sensor is installed and fixed through an expansion screw. The existing hole site positioning is only measured through a ruler or a steel tape, when an electric drill is used for drilling, hole site deviation is often caused to exceed the allowable deviation range of the hole site, if a sensor is forcibly installed, the sensor is often caused to be pulled or pressed, and even the sensor is seriously damaged.

Therefore, a hole site positioning device of a high strain detection sensor is developed to solve the above problems.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a hole site positioning device for a high-strain detection sensor, which has the advantages of improving the installation precision, improving the detection efficiency, saving the cost and the like.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a high strain detection sensor hole site positioner, includes the base plate of triangular prism structure, the drift of a cylindricality structure is fixed connection respectively to the triangle of base plate, the top fixed connection of base plate a level bubble to intermediate position fixed connection hammering head, the top of drift with the top parallel and level of base plate, the height of drift is greater than the thickness of base plate, the bottom department of drift is equipped with a pointed end, the downside of drift is equipped with a setting element, the setting element sets up in the top department of detecting the stake, the drift with the setting element passes through hammering head crimping.

Preferably, in order to facilitate punching positioning, the included angle of the tip is alpha, and the included angle alpha is in the range of 60 degrees or more and 90 degrees or less.

Preferably, in order to improve the strength of the punch and reduce the loss, the outer wall of the punch is provided with an oxide layer, and the thickness of the oxide layer is 0.05 mm-0.1 mm.

Preferably, in order to meet the sensor installation requirement, the center distance of the punches is L2, l2=76.2 mm.

Preferably, in order to facilitate the installation of the sensor by drilling, the diameter of the punch is D, and the diameter D is in the range of 6.5mm to 9.5mm.

Preferably, in order to facilitate the fixed connection of the punch, a minor arc surface is respectively arranged at the triangular position of the substrate, and the minor arc surface is fixedly connected with the punch.

Preferably, in order to facilitate horizontal adjustment and improve installation accuracy, a sinking groove is formed in the top end of the base plate, and the level bubble is fixedly connected with the sinking groove.

Preferably, in order to increase the impact force of the punch, the height of the hammering head is greater than 2 times the height of the punch.

Preferably, in order to facilitate the punching of the punch, a plurality of positioning holes are formed in the top end of the positioning piece, and the center distance of the positioning holes is L3, l3=l2.

Preferably, for the installation of punching a hole in the middle, improve and detect the accuracy nature, setting element both ends department respectively is equipped with a dog, the one end of dog with detect the outer wall parallel and level of stake.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

the high-strain detection sensor hole site positioning device is simple and convenient to operate on site, and can position the mounting hole sites of the strain sensor and the acceleration sensor at one time, so that the mounting precision is improved; the distance between the punches is fixed, so that the point positions are ensured to meet the standard requirements and the hole position deviation of the sensor is ensured to meet the requirements, multiple measurements are avoided, and the field detection efficiency is improved; the loss of the sensor is reduced, and the detection cost is saved.

Drawings

Fig. 1 is a top view of a hole location device for a high strain gauge sensor according to the present utility model.

Fig. 2 is a right side view of the hole site positioning apparatus for a high strain gauge sensor according to the present utility model.

Fig. 3 is a schematic structural view of the positioning member according to the present utility model.

Fig. 4 is a schematic structural view of the test pile according to the present utility model.

Detailed Description

The utility model will be described in further detail with reference to the accompanying drawings and specific examples.

In fig. 1 to 4, a hole location device for a high strain sensor includes a substrate 20 having a triangular prism structure, and each triangular portion of the substrate 20 is provided with an inferior cambered surface 22. The inferior cambered surface 22 is fixedly connected with the punch 30, that is, the triangular of the substrate 20 is fixedly connected with the punch 30 of a cylindrical structure respectively. A sinking groove 21 is arranged at the top end of the base plate 20, and the level bubble 40 is fixedly connected with the sinking groove 21. The horizontal state of the substrate 20 is adjusted by the vial 40 before hammering the punch 30.

The top of the base plate 20 is fixedly connected with a level bubble 40, the middle position of the base plate 20 is fixedly connected with a hammering head 10 through a round groove 23, the top end face 32 of a punch 30 is flush with the top of the base plate 20, the height of the punch 30 is larger than the thickness of the base plate 20, the bottom end of the punch 30 is exposed out of the base plate 20, a tip 31 is arranged at the bottom end of the punch 30, the included angle of the tip 31 is alpha, the included angle alpha is 60 degrees or more and is less than or equal to 90 degrees, and the range of the included angle alpha is 60 degrees or less, preferably 60 degrees or 75 degrees or 90 degrees. To increase the impact force, the height of the hammering head 10 is greater than 2 times the height of the punch 30. The outer wall of the punch 30 is provided with an oxide layer 33, the punch 30 is made of chromium vanadium steel, the center distance of the punch 30 is L2, l2=76.2mm, and the center distance of the positioning hole 51 is L3, l3=l2. The punch 30 has a diameter D in the range of 6.5mm to 9.5mm, preferably 6.5mm, 8mm or 9.5mm. The thickness of the oxide layer 33 is 0.05mm to 0.1mm, preferably 0.05mm, 0.08mm or 0.1mm.

In order to facilitate centering operation and improve positioning efficiency, a positioning member 50 is disposed on the lower side of the punch 30, and the positioning member 50 is disposed at the top end of the test pile 100. Punch 30 is crimped with retainer 50 by hammering head 10. The top end of the positioning member 50 is provided with a plurality of positioning holes 51. The two ends of the positioning piece 50 are respectively provided with a stop block 52, and one end of the stop block 52 is flush with the outer wall of the detection pile 100.

The top end and the bottom end of the detection pile 100 are respectively in staggered press connection with a first press hole 101 and a second press hole 102, namely, the top end is in press connection with two second press holes 102 and one first press hole 101, the bottom end is in press connection with two first press holes 101 and one second press hole 102, an acceleration sensor is installed after the second press hole 102 is drilled, and a strain sensor is installed after the first press hole 101 is drilled.

The device integrates three positioning punches 30 together mainly through a mode of fixing the mounting hole position and the distance of the sensor, the distance between the centers of the two punches is 76.2mm, and the requirements of the mounting size of the hole position of the strain sensor and the mounting of the sensor can be met simultaneously. Meanwhile, the punch 30 adopts a chromium vanadium steel heat treatment mode to ensure the rigidity of the punch, and the level bubble 40 is arranged to ensure that the connecting line of the positioning points of the strain sensor is flush with the axis of the pile. Through hammering head, once fix a position strain sensor and acceleration sensor installation hole site, then bore the hole site through the rig boring, guaranteed the effective installation of sensor, improved on-the-spot detection efficiency simultaneously.

The foregoing is merely a specific application example of the present utility model, and the protection scope of the present utility model is not limited in any way. All technical schemes formed by equivalent transformation or equivalent substitution fall within the protection scope of the utility model.

Claims (10)

1. A high strain detection sensor hole site positioner which characterized in that: including base plate (20) of triangular prism structure, the drift (30) of triangular respectively fixed connection cylindricality structure of base plate (20), the top fixed connection bubble (40) of base plate (20) to intermediate position fixed connection hammering head (10), the top of drift (30) with the top parallel and level of base plate (20), the height of drift (30) is greater than the thickness of base plate (20), the bottom department of drift (30) is equipped with pointed end (31), the downside of drift (30) is equipped with setting element (50), setting element (50) set up in the top department of detecting stake (100), drift (30) with setting element (50) are through hammering head (10) crimping.

2. The high strain gauge sensor bore location device of claim 1, wherein the tip (31) has an included angle α in the range of 60 ° or less and 90 ° or less.

3. The hole site positioning device of the high-strain detection sensor according to claim 2, wherein an oxide layer (33) is arranged on the outer wall of the punch (30), and the thickness of the oxide layer (33) is 0.05 mm-0.1 mm.

4. The hole location device for high strain gauge sensor according to claim 1, wherein the center distances of adjacent punches (30) are L2, and the length of the center distance L2 is equal to 76.2mm.

5. The high strain gauge sensor bore location apparatus of claim 4 wherein the punch (30) has a diameter D in the range of 6.5mm to 9.5mm.

6. The hole location positioning device for high-strain detection sensors according to claim 1, wherein a inferior arc surface (22) is respectively arranged at the triangular position of the base plate (20), and the inferior arc surface (22) is fixedly connected with the punch (30).

7. The hole location device for the high-strain detection sensor according to claim 1, wherein a sinking groove (21) is formed at the top end of the base plate (20), and the level bubble (40) is fixedly connected with the sinking groove (21).

8. The high strain sensor hole location positioning device of claim 1, wherein the height of the hammering head (10) is greater than 2 times the height of the punch (30).

9. The hole location positioning device for high strain gauge sensor according to claim 4, wherein a plurality of positioning holes (51) are provided at the top end of the positioning member (50), and the center distance of the positioning holes (51) is L3, l3=l2.

10. The hole location positioning device for high strain gauge sensor according to claim 9, wherein a stopper (52) is provided at each of both ends of the positioning member (50), and one end of the stopper (52) is flush with the outer wall of the gauge pile (100).