Adjustable fixing device for construction engineering pile foundation detection
By designing an adjustable fixing device including a pedestal, a slide, an adjustment rod, an adjustment seat and a fixing bolt, the problem of difficult adjustment and wear of the sensor fixing position is solved, and precise positioning and extended sensor life are achieved.
Patent Information
- Application Number
- CN202420675742.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-03
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-04-03
AI Technical Summary
The fixing method of the existing pile foundation detection sensor is difficult to adjust twice, which makes it difficult to ensure position accuracy, and the sensor is easily worn after long-term use, affecting performance.
An adjustable fixing device including a cushion, a slide chute, an adjustment rod, an adjustment seat and a fixing bolt is designed. The secondary precise positioning and adjustment of the sensor is achieved through the adjustment rod and an adjustment seat, and the cushion is directly fixed to the pile foundation, avoiding direct bonding between the sensor and the pile foundation and reducing wear.
The precise adjustment of the sensor position is achieved, ensuring the optimal position with the hammer point, reducing high-frequency signal interference, and avoiding wear caused by long-term use of the sensor, improving detection accuracy and sensor service life.
Smart Images
Figure CN222760664U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pile foundation detection devices for civil engineering, in particular to an adjustable fixing device for pile foundation detection in construction engineering. Background Art
[0002] The purpose of pile foundation testing is to detect the bearing capacity and integrity of the pile foundation. The main methods include static load test, core drilling method, low strain method, high strain method, acoustic wave transmission method, etc. Among them, the low strain dynamic testing method is to use a small hammer to hit the top of the pile, and receive the stress wave signal from the pile through the sensor bonded to the top of the pile. The stress wave theory is used to study the dynamic response of the pile-soil system, and the measured velocity signal and frequency signal are inverted and analyzed to obtain the integrity of the pile.
[0003] Depending on the pile foundation being tested, for solid piles, it is best to fix the sensor at a position 2 / 3 of the distance from the center of the pile. For hollow piles, it is best when the hammer point and the sensor's fixing point form a 90° angle, at which point the high-frequency interference signal is the weakest.
[0004] The sensor used for pile foundation detection is fixed on the pile foundation through a coupling agent. The current fixing method has the following problems: first, it is difficult to adjust the position of the sensor after bonding and fixing to ensure the optimal position and accuracy of the fixing point and the hammering point to reduce interference. If it is adjusted, it needs to be re-bonded, which is a cumbersome operation; second, the sensor is bonded and separated from the pile foundation using coupling agents for a long time, which will cause wear on the sensor and affect the performance of the sensor. Therefore, this application proposes an adjustable fixing device for pile foundation detection in construction projects. Utility Model Content
[0005] In order to overcome the problems in the background technology, the utility model provides an adjustable fixing device for pile foundation detection in construction projects, which solves the problems existing in the current fixing method that the position of the sensor is difficult to adjust secondary after being bonded and fixed, and the sensor will be worn after being bonded and separated from the pile foundation using coupling agents for a long time, thereby affecting the performance of the sensor.
[0006] An adjustable fixing device for pile foundation detection in construction projects comprises a cushion seat, a slide groove, an adjusting rod, an adjusting seat and fixing bolts, wherein the slide grooves are arranged around the top of the cushion seat, the two ends of the adjusting rod are slidably installed in the slide grooves, a limiting groove is provided at the bottom of the adjusting seat for slidably installing the adjusting rod, a mounting hole is provided on the adjusting seat corresponding to the screw hole at the bottom of the pile foundation detection sensor, and the fixing bolts are threadedly connected in the screw hole and the mounting hole and are tightly fixed to the cushion seat.
[0007] Furthermore, an adjustment scale 1 is provided on the top of the slide slot, and an adjustment scale 2 is provided on the adjustment rod.
[0008] Furthermore, alignment scales are provided in the middle of the four sides of the cushion seat.
[0009] Furthermore, a connecting through hole is provided on the cushion seat.
[0010] Compared with the prior art, the beneficial effects of the utility model are:
[0011] The present application is provided with a cushion seat, a slide groove, an adjustment rod and an adjustment seat. The cushion seat can be fixed to the pile foundation by a coupling agent or bolts. The adjustment seat, the slide groove and the adjustment rod can perform secondary precise positioning and adjustment of the sensor to ensure the optimal position with respect to the hammering point, thereby solving the problem that the position of the traditional sensor is difficult to adjust secondary after being directly bonded and fixed to the pile foundation. The present application is fixed to the pile foundation by a cushion seat, thereby avoiding the problem that the current sensor is directly bonded to the pile foundation using a coupling agent for a long time, and after separation, the sensor will be worn and the performance of the sensor will be affected. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings required for use in describing the embodiments are described.
[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0014] Figure 2 This is a schematic diagram of the cushion structure of the utility model;
[0015] Figure 3 It is a schematic diagram of the top view structure of the utility model;
[0016] Figure 4 It is a working schematic diagram of the utility model.
[0017] 1-base, 11-alignment scale, 12-connecting through hole, 2-slide groove, 21-adjustment scale one, 3-adjustment rod, 31-adjustment scale two, 4-adjustment base, 41-mounting hole, 5-fixing bolt, 6-sensor, 7-pile foundation. DETAILED DESCRIPTION
[0018] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings to facilitate understanding by technicians.
[0019] The utility model discloses an adjustable fixing device for pile foundation detection in construction engineering, referring to Figure 1-4, an adjustable fixing device for pile foundation detection in construction engineering, characterized in that it includes a cushion seat 1, a slide groove 2, an adjusting rod 3, an adjusting seat 4 and a fixing bolt 5, the slide groove 2 is arranged around the top of the cushion seat 1, both ends of the adjusting rod 3 are slidably installed in the slide groove 2, a limiting groove is provided at the bottom of the adjusting seat 4 to slide with the adjusting rod 3, a mounting hole 41 is provided on the adjusting seat 4 to correspond to the screw hole at the bottom of the pile foundation detection sensor 6, and the fixing bolt 5 is threadedly connected in the screw hole and the mounting hole 41 and is tightly fixed to the cushion seat 1.
[0020] The cushion seat 1 can be directly fixed to the pile foundation through a coupling agent, and the slide groove 2 can enable the adjusting rod 3 installed therein to move left and right, thereby adjusting the left and right position of the adjusting seat 4 installed on the adjusting rod 3, and the adjusting seat 4 is slidably installed on the adjusting rod 3 through the slide groove at the bottom, and can move back and forth on the adjusting rod 3 to adjust the position. The sensor 6 can be fixedly installed with the adjusting seat 4 by the fixing bolt 5, so that when necessary, the position can be adjusted twice by the adjusting seat 4 to correspond to the hammering point, reducing interference from high-frequency signals. The adjusting seat 4 can be fixedly fixed with the cushion seat 1 by the fixing bolt 5 bolts, ensuring that the sensor 6 stably receives signals when knocked.
[0021] See also Figure 1-4 The top of the slide groove 2 is provided with an adjustment scale 21, and the adjustment rod 3 is provided with an adjustment scale 2 31, which is convenient for the detection personnel to adjust left and right, front and back and determine the position of the sensor 6 and the hammer point conveniently and accurately.
[0022] See also Figure 1-4 The middle of the four sides of the cushion seat 1 is provided with an alignment scale 11, which is convenient for the inspection personnel to align the sensor 6 with the center of the pile foundation conveniently and accurately, and determine the 90° angle between the sensor 6 and the hammer point.
[0023] See also Figure 1-4 The cushion seat 1 is provided with a connecting through hole 12, which enables the cushion seat 1 to be rigidly connected to the pile foundation.
[0024] Working process:
[0025] First, make a positioning mark on the pile foundation 7 to be tested, align the cushion 1 with the positioning line by aligning the scale 11, apply a coupling agent on the bottom of the cushion 1 or directly fix the cushion 1 to the pile foundation 7 by connecting the through hole 12 and the bolt, align the screw hole of the sensor 6 with the mounting hole 41 of the adjustment seat 4, and connect and fix the sensor 6 to the adjustment seat 4 by the fixing bolt 5. If it is necessary to adjust the position of the sensor 6 for a second time, determine the moving distance by the section scale 1 21 and the adjustment scale 2 31, and perform a second adjustment of the position of the sensor 6 by moving the adjustment rod 3 back and forth and left and right. Then, fix the sensor 6 to the adjustment seat 4, and the adjustment seat 4 to the cushion 1 by fixing the bolt 5 and the nut, and then perform a tapping test on the pile foundation 7.
[0026] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. An adjustable fixing device for pile foundation detection in construction engineering, characterized in that: The utility model comprises a cushion seat (1), a slide groove (2), an adjustment rod (3), an adjustment seat (4) and a fixing bolt (5), wherein the slide groove (2) is arranged around the top of the cushion seat (1), the two ends of the adjustment rod (3) are slidably mounted in the slide groove (2), the bottom of the adjustment seat (4) is provided with a limit groove for slidably mounting the adjustment rod (3), the adjustment seat (4) is provided with a mounting hole (41) corresponding to the screw hole at the bottom of the pile foundation detection sensor (6), and the fixing bolt (5) is threadedly connected in the screw hole and the mounting hole (41) to be tightly fixed to the cushion seat (1).
2. According to claim 1, the adjustable fixing device for pile foundation detection in construction engineering is characterized by: The top of the slide groove (2) is provided with an adjustment scale 1 (21), and the adjustment rod (3) is provided with an adjustment scale 2 (31).
3. The adjustable fixing device for pile foundation detection in construction engineering according to claim 1 is characterized by: Alignment scales (11) are provided in the middle of the four sides of the cushion seat (1).
4. The adjustable fixing device for pile foundation detection in construction engineering according to claim 1 is characterized by: The cushion seat (1) is provided with a connecting through hole (12).