CN210288513U - Low strain detection device of foundation pile - Google Patents
Low strain detection device of foundation pile Download PDFInfo
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- CN210288513U CN210288513U CN201920805083.XU CN201920805083U CN210288513U CN 210288513 U CN210288513 U CN 210288513U CN 201920805083 U CN201920805083 U CN 201920805083U CN 210288513 U CN210288513 U CN 210288513U
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- foundation pile
- detection device
- strain detection
- low strain
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Abstract
The utility model discloses a foundation pile low strain detection device, including excitation equipment and sensor, still include the sensor support, the sensor support includes the bottom sprag, be provided with two stands on the bottom sprag, be provided with the crossbeam between two stands, the both ends and the stand sliding fit of crossbeam, and the crossbeam is connected with height adjusting mechanism, the lower surface of crossbeam is provided with vertical guide bar, the guide bar be provided with outward with a guide bar sliding fit's an installation section of thick bamboo, the lower extreme at an installation section of thick bamboo is fixed to the sensor, be provided with the locating hole on the bottom sprag, the central line of locating hole and the coincidence of the central line of sensor. The device can install the sensor in place at one time, avoids repeatedly adjusting the verticality of the sensor, can improve the operation efficiency and saves time.
Description
Technical Field
The utility model belongs to the check out test set field, especially a foundation pile hangs down detection device that meets an emergency.
Background
The foundation pile is the bearing structure of building bottom, in order to guarantee building safety, must detect the foundation pile after the construction, can only accept after qualified. At present, foundation pile detection is generally performed according to building foundation pile detection technical specification (JGJ06-2003) of the industry standard of the people's republic of China, in the standard, a low-strain method is used for detecting the integrity of a concrete foundation pile and judging the position and the degree of a defect, detection equipment of the low-strain method is a foundation pile dynamic tester and comprises a sensor and excitation equipment, according to the specification of the 8.3.3 item of the building foundation pile detection technical specification (JGJ06-2003), the sensor is bonded on the top surface of the foundation pile through a coupling agent, and the sensor is perpendicular to the foundation pile, and in actual operation, the sensor is difficult to be perpendicular to the foundation pile.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a foundation pile low strain detection device can guarantee sensor perpendicular to foundation pile, makes things convenient for the installation of sensor.
The purpose of the utility model is realized like this: the utility model provides a foundation pile low strain detection device, includes excitation equipment and sensor, still includes the sensor support, the sensor support includes the bottom sprag, be provided with two stands on the bottom sprag, be provided with the crossbeam between two stands, the both ends and the stand sliding fit of crossbeam, and the crossbeam is connected with height adjusting mechanism, the lower surface of crossbeam is provided with vertical guide bar, the guide bar be provided with outward with a guide bar sliding fit's an installation section of thick bamboo, the lower extreme at an installation section of thick bamboo is fixed to the sensor, be provided with the locating hole on the bottom sprag, the central line of locating hole and the coincidence of the central line of sensor.
Further, the upright is a screw rod, the height adjusting mechanism is an adjusting nut, and the adjusting nut is arranged on the upright above and below the cross beam.
Further, the outer wall of installation section of thick bamboo upper end is provided with the horizontally bottom suspension fagging, the top of bottom suspension fagging is provided with the horizontally backup pad of going up, go up the backup pad cover on the guide bar and with guide bar sliding fit, be provided with the spring between bottom suspension fagging and the last backup pad, the upper portion of guide bar is the threaded rod, be provided with the fastening nut who compresses tightly the backup pad on the threaded rod.
Further, the sensor is fixed in the lower end hole of the mounting cylinder through screw compression.
Furthermore, the bottom support is a rectangular frame, a positioning ring is arranged inside the frame and is connected with the frame through a connecting rod, and the positioning hole is an inner hole of the positioning ring.
Further, a detachable counterweight is arranged on the bottom support.
The utility model has the advantages that: when the sensor is used, the bottom support is placed on the top surface of the foundation pile, the couplant is injected into the positioning hole, and the cross beam is moved downwards by the height adjusting mechanism until the sensor enters the positioning hole and is adhered and fixed on the top surface of the foundation pile by the couplant. The guide rod of the device has the guiding function, and can ensure that the sensor vertically enters the positioning hole, so that the sensor is perpendicular to the top surface of the foundation pile, and the installation precision of the sensor can be ensured. In addition, after the device is adopted, the sensor can be installed in place at one time, the repeated adjustment of the verticality of the sensor is avoided, the operation efficiency can be improved, and the time is saved.
Drawings
Fig. 1 is a schematic overall front view of the present invention.
FIG. 2 is a schematic top view of the base support.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
As shown in fig. 1 and fig. 2, the low strain detection device for foundation pile of the present invention comprises an excitation device 1 and a sensor 2, wherein the excitation device 1 and the sensor 2 are conventional devices meeting the technical specification of building foundation pile detection (JGJ06-2003), and further comprises a sensor support, the sensor bracket comprises a bottom support 3, two upright posts 4 are arranged on the bottom support 3, a cross beam 5 is arranged between the two upright posts 4, two ends of the cross beam 5 are in sliding fit with the upright posts 4, and the cross beam 5 is connected with a height adjusting mechanism 6, the lower surface of the cross beam 5 is provided with a vertical guide rod 7, an installation cylinder 8 which is in sliding fit with the guide rod 7 is arranged outside the guide rod 7, the sensor 2 is fixed at the lower end of the installation cylinder 8, the bottom support 3 is provided with a positioning hole 9, and the center line of the positioning hole 9 is superposed with the center line of the sensor 2.
The bottom support 3 is used for supporting the whole sensor support, a horizontal iron plate can be adopted, the positioning hole 9 can be a through hole formed in the iron plate, and as a more preferable embodiment, the bottom support 3 is a rectangular frame, so that the bottom support is light in weight and convenient to carry. The frame can be formed by welding sectional materials, such as rectangular steel or angle steel. At this time, a positioning ring 14 is arranged inside the frame, the positioning ring 14 is connected with the frame through a connecting rod 15, and the positioning hole 9 is an inner hole of the positioning ring 14. In order to ensure the stability of the sensor support in use, the bottom support 3 is provided with a detachable counterweight 16, the counterweight 16 can be articles such as stones and bricks which are easily obtained on construction sites, the articles are placed on the bottom support 3 in use, and the articles are taken down after detection is finished.
The cross beam 5 may be a rectangular steel, metal rod with a rectangular or circular cross section, and the upper end of the guide rod 7 may be welded to the cross beam 5 or connected to the cross beam 5 by a screw thread. The guide rod 7 plays a role in guiding and ensures that the mounting cylinder 8 moves vertically so as to drive the sensor 2 to move vertically. The height adjusting mechanism 6 is used for driving the cross beam 5 to move up and down, so that the sensor 2 moves up and down to enter the positioning hole 9 or be taken out from the positioning hole 9.
The height adjusting mechanism 6 can adopt various existing structures capable of adjusting height, is preferred, the stand column 4 is a screw rod, the height adjusting mechanism 6 is an adjusting nut, the adjusting nut is arranged on the stand column 4 above and below the cross beam 5, the height of the cross beam 5 can be changed by rotating the adjusting nut, the adjustment is convenient, the structure is simple, and the implementation cost is low.
In order to stably fix the sensor 2 on the foundation pile top surface in the positioning hole 9, a horizontal lower supporting plate 10 is fixedly arranged at the upper end of the installation cylinder 8, a horizontal upper supporting plate 11 is arranged above the lower supporting plate 10, the upper supporting plate 11 is sleeved on the guide rod 7 and is in sliding fit with the guide rod 7, a spring 12 is arranged between the lower supporting plate 10 and the upper supporting plate 11, the upper part of the guide rod 7 is a threaded rod, and a fastening nut 13 for compressing the upper supporting plate 11 is arranged on the threaded rod. When the sensor is used, the fastening nut 13 is rotated, the upper supporting plate 11 can be pushed to move downwards, the spring 12 is compressed, the elastic force is transmitted to the sensor 2 through the lower supporting plate 10 and the mounting cylinder 8, and the sensor 2 is tightly pressed and fixed on the top surface of the foundation pile.
The sensor 2 is pressed and fixed in a lower end hole of the mounting cylinder 8 through a screw, the upper portion of the sensor 2 can be inserted into the mounting cylinder 8, then the sensor 2 is pressed and fixed in the mounting cylinder 8 through the screw, and the axial direction of the screw is the radial direction of the mounting cylinder 8.
The use process of the device is as follows: the bottom support 3 is placed on the top surface of the foundation pile, the bottom support 3 is kept horizontal, then the balance weight 16 is placed, the coupling agent is injected into the positioning hole 9, the cross beam 5 is driven to move downwards through the height adjusting mechanism 6 until the sensor 2 enters the positioning hole 9, the fastening nut 13 is rotated, the sensor 2 is pressed tightly, and then the excitation equipment 1 can be started and the foundation pile can be detected.
This device can once install sensor 2 and target in place, and convenient operation is laborsaving, and guarantees sensor 2's straightness that hangs down, guarantees to detect the precision.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a foundation pile low strain detection device, includes excitation equipment (1) and sensor (2), its characterized in that: the sensor support comprises a bottom support (3), two stand columns (4) are arranged on the bottom support (3), a cross beam (5) is arranged between the two stand columns (4), the two ends of the cross beam (5) are in sliding fit with the stand columns (4), the cross beam (5) is connected with a height adjusting mechanism (6), the lower surface of the cross beam (5) is provided with a vertical guide rod (7), an installation cylinder (8) in sliding fit with the guide rod (7) is arranged outside the guide rod (7), the sensor (2) is fixed at the lower end of the installation cylinder (8), a positioning hole (9) is formed in the bottom support (3), and the central line of the positioning hole (9) coincides with the central line of the sensor (2).
2. A foundation pile low strain detection device according to claim 1, wherein: the upright post (4) is a screw rod, the height adjusting mechanism (6) is an adjusting nut, and the adjusting nut is arranged on the upright post (4) above and below the cross beam (5).
3. A foundation pile low strain detection device according to claim 1, wherein: installation section of thick bamboo (8) upper end is provided with horizontally bottom suspension fagging (10), the top of bottom suspension fagging (10) is provided with horizontally last backup pad (11), go up backup pad (11) cover on guide bar (7) and with guide bar (7) sliding fit, be provided with spring (12) between bottom suspension fagging (10) and last backup pad (11), the upper portion of guide bar (7) is the threaded rod, be provided with fastening nut (13) that compress tightly backup pad (11) on the threaded rod.
4. A foundation pile low strain detection device according to claim 1, wherein: the sensor (2) is fixed in the lower end hole of the mounting cylinder (8) through screw compression.
5. A foundation pile low strain detection device according to claim 1, wherein: bottom sprag (3) is the frame of rectangle, and the frame is inside to be provided with holding ring (14), holding ring (14) link to each other with the frame through connecting rod (15), locating hole (9) are the hole of holding ring (14).
6. A foundation pile low strain detection device according to claim 1, wherein: the bottom support (3) is provided with a detachable counterweight (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920805083.XU CN210288513U (en) | 2019-05-30 | 2019-05-30 | Low strain detection device of foundation pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920805083.XU CN210288513U (en) | 2019-05-30 | 2019-05-30 | Low strain detection device of foundation pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210288513U true CN210288513U (en) | 2020-04-10 |
Family
ID=70070734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920805083.XU Active CN210288513U (en) | 2019-05-30 | 2019-05-30 | Low strain detection device of foundation pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210288513U (en) |
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2019
- 2019-05-30 CN CN201920805083.XU patent/CN210288513U/en active Active
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