Foundation detection device for municipal housing construction quality detection

Abstract

The utility model relates to the technical field of foundation detection devices, in particular to a foundation detection device for municipal housing construction quality detection, which comprises a casing, a long electric push rod, an acceleration sensor and a data line. One side of the inner wall of the machine shell is connected with a long electric push rod through a support, the moving end of the long electric push rod is connected with an acceleration sensor through a bolt, one side of the acceleration sensor is connected with a data line, and the other end of the data line penetrates through the inner wall of the machine shell and is connected with a low strain detector. The low-strain detector is placed on the upper surface of the machine shell through a support, and the data line is connected with a winding disc. According to the foundation detection device for municipal house building quality detection, a short electric push rod is started to pull a stop block to be retracted into an empty groove, a vibration excitation hammer falls down to smash a foundation pile, then a servo motor is started to pull up a pull rope, then the short electric push rod is started to push out the stop block and limit the pull rope, and then the vibration hammer is retracted and released through the foundation detection device for municipal house building quality detection.

Description

Technical Field

[0001] This utility model relates to the technical field of foundation testing devices, specifically a foundation testing device for municipal building construction quality testing. Background Technology

[0002] Foundation testing is a crucial part of building construction. It is mainly used to assess the bearing capacity of the land and other geological characteristics to ensure the safety and stability of buildings. After the foundation piles are poured, foundation testing is generally required to check the quality and defects of the piles. However, existing foundation testing devices for municipal building construction quality testing still have certain shortcomings in use, such as:

[0003] Publication number CN215491644U proposes a foundation testing device for municipal building construction quality inspection, relating to the field of foundation testing technology. It addresses the problem that current technologies using the reflected wave method for foundation pile testing often require two people each holding different testing components, wasting manpower and resulting in slow testing speed. The device comprises four buffer components installed at the bottom of the instrument housing, with a test chamber installed below each buffer component. The instrument housing has internal placement grooves, inside which a low-strain detector is placed. A fastening pad is fixedly connected to the instrument housing on its outer side. An operating slot is provided along one side of the placement grooves inside the instrument housing.

[0004] The aforementioned document states that the vibratory hammer is fixed in place by a tie rod. After the vibratory hammer falls and strikes the foundation pile, it is necessary to manually insert the vibratory hammer into the vertical groove and limit its position with a tie rod, which is quite troublesome. Based on this, a foundation testing device for municipal building construction quality testing is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a foundation testing device for municipal building construction quality testing, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a foundation testing device for municipal building construction quality testing, comprising: a housing, a long electric actuator, an acceleration sensor, and a data cable;

[0007] A long electric actuator is connected to one side of the inner wall of the housing via a bracket. An acceleration sensor is bolted to the moving end of the long electric actuator. A data cable is connected to one side of the acceleration sensor. The other end of the data cable passes through the inner wall of the housing and is connected to a low-strain detector. The low-strain detector is placed on the upper surface of the housing via a support. A winding reel is connected to the data cable and is attached to the upper surface of the housing. A vibration excitation mechanism is connected to the upper surface of the housing near the low-strain detector, and a limit mechanism is connected to the outer side of the housing.

[0008] The vibration mechanism includes a groove connected to the upper surface of the housing by bolts. A servo motor is connected to the upper inner wall of the groove via a motor mount. The output end of the servo motor is connected to a threaded rod via a coupling. The threaded rod is rotatably connected to the upper surface of the housing, and a slider is threadedly connected to the threaded rod. The slider is slidably connected to the inner wall of the groove.

[0009] Preferably, a support rod is fixedly connected to the front of the slider, and a pull rope is abutted against the outer side of the support rod. One end of the pull rope is connected to the upper surface of the housing.

[0010] Preferably, the end of the pull rope away from the housing slides through the inner wall of the housing, and the end of the pull rope is connected to a vibrating hammer.

[0011] Preferably, the front part of the support rod abuts against a vertical plate, the vertical plate is connected to the upper surface of the housing, and a slot is opened on the back of the vertical plate. A short electric push rod is connected to the inner wall of the slot, and a stop block is connected to the moving end of the short electric push rod by screws. The stop block is slidably connected in the slot and abuts against the front of the slider and the outside of the pull rope.

[0012] Preferably, the limiting mechanism includes a lug connected to the outer side of the housing by bolts, a gear rotatably connected to the inner wall of the lug, a support arm fixedly connected below the gear, a U-shaped plate rotatably connected to the other end of the support arm, and an anti-slip pad connected to one side of the U-shaped plate by glue.

[0013] Preferably, a slide rod is connected to the upper surface of the lug, and a fixed circular ring is connected to the upper surface of the slide rod, the fixed circular ring being connected to the outside of the housing.

[0014] Preferably, the bottom of the fixed ring is connected to a longitudinal electric push rod, the moving end of the longitudinal electric push rod is connected to a movable ring, and the movable ring is slidably connected to the slide rod.

[0015] Preferably, the bottom of the moving ring is connected to a toothed plate, which is meshed with one side of the gear.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This foundation testing device for municipal building construction quality inspection, by activating the short electric push rod to pull the stop block into the empty groove, the vibrating hammer falls and strikes the foundation pile, then the servo motor is activated to pull the rope upward, and then the short electric push rod is activated again to push the stop block out, limiting the rope, thereby allowing the foundation testing device for municipal building construction quality inspection to retract and extend the vibrating hammer. The specific details are as follows:

[0017] 1. By starting the servo motor to drive the slider to slide downwards, the pull rope is hung on the stop block. Then, the short electric push rod is started to pull the stop block into the empty slot, and the vibratory hammer falls and hits the foundation pile. Then, the servo motor is started to rotate in the opposite direction to pull the pull rope upwards and reset the vibratory hammer. Then, the short electric push rod is started to push the stop block out to limit the pull rope, thereby allowing the municipal building construction quality inspection foundation testing device to retract and extend the vibratory hammer.

[0018] 2. By placing the housing on the foundation pile, the longitudinal electric push rod drives the toothed plate below the moving ring to rotate the gear, which in turn drives the support arm to rotate, bringing the anti-slip pad into contact with the outside of the foundation pile, thus limiting the housing and preventing the foundation testing device for municipal building quality testing from shaking. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the main cross-sectional structure of the casing of this utility model;

[0021] Figure 3 This is a schematic diagram of the three-dimensional cross-sectional structure of the casing of this utility model;

[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the tank body of this utility model;

[0023] Figure 5 This is a schematic diagram of the three-dimensional structure of the vertical plate of this utility model;

[0024] Figure 6 This is an enlarged view of the structure of part A of this utility model.

[0025] In the diagram: 1. Housing; 2. Long electric actuator; 3. Accelerometer; 4. Data cable; 5. Low strain gauge; 6. Rewind reel; 7. Vibration mechanism; 701. Tank; 702. Servo motor; 703. Threaded rod; 704. Slider; 705. Support rod; 706. Pull rope; 707. Vibration hammer; 708. Vertical plate; 709. Empty trough; 710. Short electric actuator; 711. Stop block; 8. Limiting mechanism; 801. Connector; 802. Gear; 803. Support arm; 804. U-shaped plate; 805. Anti-slip pad; 806. Slide rod; 807. Fixed ring; 808. Longitudinal electric actuator; 809. Moving ring; 810. Gear plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-6 This utility model provides a technical solution: a foundation testing device for municipal building construction quality testing, comprising: a housing 1, a long electric push rod 2, an acceleration sensor 3, and a data cable 4;

[0028] A long electric actuator 2 is connected to one side of the inner wall of the housing 1 via a bracket. An accelerometer 3 is bolted to the moving end of the long electric actuator 2. A data cable 4 is connected to one side of the accelerometer 3, and the other end of the data cable 4 passes through the inner wall of the housing 1 and is connected to a low-strain detector 5. The low-strain detector 5 is placed on the upper surface of the housing 1 via a support. A take-up reel 6 is connected to the data cable 4 and is attached to the upper surface of the housing 1. A vibration excitation mechanism 7 is connected to the upper surface of the housing 1 near the low-strain detector 5, and a limit mechanism 8 is connected to the outer side of the housing 1. The vibration excitation mechanism 7 includes a groove 701 bolted to the upper surface of the housing 1. A servo motor 702 is connected to the upper inner wall of the groove 701 via a motor mount. The output end of the servo motor 702 is connected to a threaded rod 703 via a coupling. The threaded rod 703 is rotatably connected to the upper surface of the housing 1. Furthermore, a slider 704 is threadedly connected to the threaded rod 703. The slider 704 is slidably connected to the inner wall of the groove 701. A support rod 705 is fixedly connected to the front of the slider 704. A pull rope 706 is abutted against the outer side of the support rod 705. One end of the pull rope 706 is connected to the upper surface of the housing 1. The end of the pull rope 706 away from the housing 1 slides through the inner wall of the housing 1. An excitation hammer 707 is connected to the end of the pull rope 706. A vertical plate 708 is abutted against the front of the support rod 705. The vertical plate 708 is connected to the upper surface of the housing 1. A slot 709 is opened on the back of the vertical plate 708. A short electric push rod 710 is connected to the inner wall of the slot 709. A stop block 711 is connected to the moving end of the short electric push rod 710 by screws. The stop block 711 is slidably connected in the slot 709. The stop block 711 abuts against the front of the slider 704 and the outer side of the pull rope 706.

[0029] In practice, the servo motor 702 is started to drive the threaded rod 703 to rotate. The threaded rod 703 drives the slider 704 to slide downward in the groove 701. The pull rope 706 is hung on the stop block 711. Then, the short electric push rod 710 is started to pull the stop block 711 into the empty groove 709, and the vibratory hammer 707 falls and hits the foundation pile. Then, the servo motor 702 is started to rotate in the opposite direction, so that the support rod 705 pulls the pull rope 706 upward and resets the vibratory hammer 707. Then, the short electric push rod 710 is started to push the stop block 711 out and limit the pull rope 706, so that the municipal building construction quality inspection foundation testing device can retract and extend the vibratory hammer.

[0030] See Figures 1-3 It is known that the limiting mechanism 8 includes a lug 801 connected to the outside of the housing 1 by bolts. A gear 802 is rotatably connected to the inner wall of the lug 801. A support arm 803 is fixedly connected to the lower part of the gear 802. A U-shaped plate 804 is rotatably connected to the other end of the support arm 803. An anti-slip pad 805 is connected to one side of the U-shaped plate 804 by glue. A slide rod 806 is connected to the upper surface of the lug 801. A fixed ring 807 is connected to the upper surface of the slide rod 806. The fixed ring 807 is connected to the outside of the housing 1. A longitudinal electric push rod 808 is connected to the bottom of the fixed ring 807. A movable ring 809 is connected to the moving end of the longitudinal electric push rod 808. The movable ring 809 is slidably connected to the slide rod 806. A toothed plate 810 is connected to the bottom of the movable ring 809. The toothed plate 810 is meshed with one side of the gear 802.

[0031] In practice, the housing 1 is placed on the foundation pile, and the longitudinal electric push rod 808 is activated to push the moving ring 809 to slide along the slide rod 806. This causes the toothed plate 810 below the moving ring 809 to drive the gear 802 to rotate, which in turn drives the support arm 803 to rotate. This causes the anti-slip pad 805 to come into contact with the outside of the foundation pile, thus limiting the housing 1 and preventing the vibrating hammer 707 from shaking during impact. This prevents the foundation testing device for municipal building quality testing from shaking.

[0032] In summary: When using this foundation testing device for municipal building construction quality inspection, firstly, the handle on the portable housing 1 is used to place the housing 1 on the pile to be tested. Then, the low-strain detector 5 is removed from the housing 1, and the winding reel 6 is rotated to unwind. Then, the winding reel 6 is operated to start the longitudinal electric actuator 808 to rotate the support arm 803, bringing multiple anti-slip pads 805 into contact with the pile. Then, the long electric actuator 2 is started to bring the acceleration sensor 3 into contact with the pile surface. Then, the servo motor 702 is started to move the support rod 705 downward. Then, the short electric actuator 710 is started to pull the stop block 711 into the slot 709, no longer limiting the pull rope 706. The vibratory hammer 707 strikes the pile, and the excitation elastic wave propagates downward along the pile body. When there is significant wave resistance in the pile body... When encountering differential interfaces, such as broken piles at the pile bottom, severe segregation areas, diameter reduction, diameter expansion, or deformation, reflection phenomena will occur. These reflections are received by the accelerometer 3 and then transmitted via the data line 4 to the low-strain detector 5 for processing. The detector identifies reflection information from different parts of the pile body, thereby detecting the quality and defect location of the foundation pile. Then, the servo motor 702 is started to rotate in the reverse direction, lifting the vibratory hammer 707. Next, the short electric push rod 710 is started to push out the stop block 711. Then, the longitudinal electric push rod 808 is started to remove the anti-slip pad 805 from the foundation pile. The low-strain detector 5 is placed on the support on the housing 1, and the winding reel 6 is rotated to wind up the data line 4. Finally, the handle on the housing 1 is used to carry it away. Content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A foundation testing device for municipal building construction quality inspection, comprising: The housing (1), long electric actuator (2), accelerometer (3), and data cable (4) are characterized in that; A long electric actuator (2) is connected to one side of the inner wall of the housing (1) via a bracket. An acceleration sensor (3) is connected to the moving end of the long electric actuator (2) via a bolt. A data cable (4) is connected to one side of the acceleration sensor (3). The other end of the data cable (4) passes through the inner wall of the housing (1) and is connected to a low strain detector (5). The low strain detector (5) is placed on the upper surface of the housing (1) via a support. A winding reel (6) is connected to the data cable (4). The winding reel (6) is connected to the upper surface of the housing (1). An excitation mechanism (7) is connected to the upper surface of the housing (1) near the low strain detector (5). A limit mechanism (8) is connected to the outer side of the housing (1). The excitation mechanism (7) includes a groove (701) connected to the upper surface of the housing (1) by bolts. A servo motor (702) is connected to the upper inner wall of the groove (701) by a motor mount. The output end of the servo motor (702) is connected to a threaded rod (703) by a coupling. The threaded rod (703) is rotatably connected to the upper surface of the housing (1), and a slider (704) is threadedly connected to the threaded rod (703). The slider (704) is slidably connected to the inner wall of the groove (701).

2. The foundation testing device for municipal building construction quality testing according to claim 1, characterized in that: A support rod (705) is fixedly connected to the front of the slider (704), and a pull rope (706) abuts against the outside of the support rod (705). One end of the pull rope (706) is connected to the upper surface of the housing (1).

3. A foundation testing device for municipal building construction quality testing according to claim 2, characterized in that: The end of the pull rope (706) away from the housing (1) slides through the inner wall of the housing (1), and the end of the pull rope (706) is connected to the excitation hammer (707).

4. A foundation testing device for municipal building construction quality testing according to claim 2, characterized in that: The front part of the support rod (705) abuts against the upright plate (708), the upright plate (708) is connected to the upper surface of the housing (1), and the back of the upright plate (708) is provided with a slot (709). A short electric push rod (710) is connected to the inner wall of the slot (709). The moving end of the short electric push rod (710) is connected to a stop block (711) by screws. The stop block (711) is slidably connected in the slot (709), and the stop block (711) abuts against the front part of the slider (704) and the outside of the pull rope (706).

5. A foundation testing device for municipal building construction quality testing according to claim 1, characterized in that: The limiting mechanism (8) includes a lug (801) connected to the outer side of the housing (1) by bolts. A gear (802) is rotatably connected to the inner wall of the lug (801). A support arm (803) is fixedly connected below the gear (802). A U-shaped plate (804) is rotatably connected to the other end of the support arm (803). An anti-slip pad (805) is glued to one side of the U-shaped plate (804).

6. A foundation testing device for municipal building construction quality testing according to claim 5, characterized in that: The upper surface of the lug (801) is connected to a slide rod (806), and the upper surface of the slide rod (806) is connected to a fixed ring (807), which is connected to the outside of the housing (1).

7. A foundation testing device for municipal building construction quality testing according to claim 6, characterized in that: The bottom of the fixed circular ring (807) is connected to a longitudinal electric push rod (808), and the moving end of the longitudinal electric push rod (808) is connected to a movable circular ring (809), which is slidably connected to the slide rod (806).

8. A foundation testing device for municipal building construction quality testing according to claim 7, characterized in that: The bottom of the moving ring (809) is connected to a toothed plate (810), which is meshed with one side of the gear (802).

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