Bridge foundation detection device for constructional engineering

Abstract

The utility model discloses a bridge foundation detection device for constructional engineering, which relates to the technical field of constructional engineering, aims to solve the technical problem that soil samples with different depths cannot be well collected, and comprises a fixed seat, a sleeve is arranged below the fixed seat, and a driving motor is mounted at the top of the fixed seat. The driving end of the driving motor is connected with a driving rod located in the center of the sleeve, a tenon column is arranged on the periphery of the driving rod in a limited sliding mode, the bottom end of the tenon column is of a conical tip structure, a spiral part is arranged on the periphery of the tenon column, a plurality of layered sample scraping structures distributed at equal intervals are arranged on the outer edge of the spiral part, and a jacking structure is arranged above the tenon column. According to the utility model, the arc seat and the spiral part are embedded and extendable, the arc seat and the collecting arc plate are movably connected, the arc surface at one end of the collecting arc plate is matched with the contraction of the spring, the other end of the collecting arc plate is opened, and the pressing structure is matched; downhole drilling, depth setting and depth setting stratified sampling can be achieved through one motor as a whole, and economic benefits are high.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and more specifically, to a bridge foundation testing device for building engineering. Background Technology

[0002] Bridge construction is a type of building engineering. Before construction, to ensure the stability of the bridge, it is necessary to sample and test the soil at the construction site. Based on the soil quality, appropriate construction methods are adopted to ensure the stability of the foundation. However, existing soil sampling methods typically involve drilling with screw blades, which mixes soil samples from different depths and does not effectively collect samples from different depths. Therefore, we propose a bridge foundation testing device for building engineering. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a bridge foundation testing device for building engineering, so as to solve the current technical problem that it is not possible to collect soil samples at different depths.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a bridge foundation testing device for building engineering, including a fixed base, a sleeve provided below the fixed base, a drive motor installed on the top of the fixed base, a drive rod connected to the drive end of the drive motor at the center of the sleeve, a tenon column with a limiting sliding on the outer periphery of the drive rod, the bottom end of the tenon column having a conical tip structure, a spiral part provided on the outer periphery of the tenon column, a plurality of equally spaced layered scraping structures provided on the outer edge of the spiral part, and a top pressing structure provided above the tenon column.

[0005] Preferably, the fixing seat is fixed to an external loading vehicle or equipment, the bottom edge of the sleeve is integrally formed with sharp teeth, a sampling port is opened on one side of the sleeve, and a blower is connected to the other side of the sleeve.

[0006] Preferably, the layered scraping structure includes an arc seat, which is adapted to the spiral trajectory of the spiral part. The spiral part has a recessed inner arc groove, the inner circumference of which fits against the outer circumference of the arc seat. A collecting arc plate is movably connected to one side of the arc seat. One end of the collecting arc plate is designed with an arc surface, and the other end of the collecting arc plate has an opening.

[0007] Preferably, the layered scraping structure further includes tenon rods and tenon sleeves that are interlocked, with one end of the tenon rod fixed to the inner wall of the inner arc groove, and a spring provided between the tenon rod and the tenon sleeve.

[0008] Preferably, the top-pressing structure includes a central gear fixed to the drive rod, a plurality of meshing gears meshing on the outer periphery of the central gear, a one-way bearing being provided at the center of the meshing gears, a cylindrical cam being connected to the inner ring of the one-way bearing, the cylindrical cam having a curved groove, a lifting sleeve being fitted on the outer periphery of the cylindrical cam, a limit part being integrally formed on the inner periphery of the lifting sleeve, and a pressure plate for pressing the tenon being installed on the outer periphery of the lifting sleeve.

[0009] Preferably, the lifting sleeve is limited and slidably fitted with a fixing hoop, and the outer periphery of the fixing hoop is fixed to the inner wall of the sleeve.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. This utility model utilizes a limiting sliding design between the drive rod and the tenon column, an embedded extendable design between the arc seat and the spiral part, and a movable connection between the arc seat and the collecting arc plate. Combined with the arc surface of one end of the collecting arc plate, the contraction of the spring, and the opening design of the other end of the collecting arc plate, the collecting arc plate can retract into the inner arc groove when the drill is inserted into the ground. When it rotates upward in the opposite direction, the other end is a straight surface, which, combined with the spring, allows the collecting arc plate to scrape and collect the soil. The equidistant distribution of multiple collecting arc plates allows for sampling at different depths, solving the problem of not being able to collect soil samples at different depths effectively.

[0012] 2. This utility model also enhances stability during rotary drilling by using a sleeve flared mouth and sharp spike teeth. Furthermore, through gear transmission and the design of a one-way bearing and cylindrical cam, combined with the pressing contact of the pressure plate, the one-way bearing limits the movement during rotary drilling, allowing the lifting sleeve to drive the pressure plate to press down on the tenon column, thus assisting in inserting the tip into the ground (only a portion of the tip needs to be inserted, and with the spiral part, continuous rotary drilling can then be performed). Thus, the entire system uses a single motor to achieve actions such as pressure drilling and sampling, resulting in a simplified structure and high economic efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a half-section diagram of the casing in the unfolded soil scraping state of the layered scraping structure in this utility model.

[0015] Figure 3 This utility model Figure 2 Enlarged view of the structure at point A in the middle;

[0016] Figure 4 This is a schematic diagram of the cylindrical cam in this utility model;

[0017] Figure 5 This is a schematic diagram of the layered scraping structure in this utility model.

[0018] The labels in the diagram are as follows: 1. Fixed base; 2. Sleeve; 3. Drive motor; 4. Drive rod; 5. Tenon; 6. Spiral part; 7. Layered scraping structure; 8. Top pressure structure; 9. Blower; 10. Fixing hoop;

[0019] 701. Arc seat; 702. Arc collecting plate; 703. Tenon rod; 704. Tenon sleeve; 705. Spring;

[0020] 801. Center gear; 802. Meshing gear; 803. One-way bearing; 804. Cylindrical cam; 805. Lifting sleeve; 806. Pressure plate. Detailed Implementation

[0021] like Figures 1 to 5 As shown, this utility model relates to a bridge foundation testing device for building engineering, including a fixed base 1, a sleeve 2 arranged below the fixed base 1, and a connecting rod fixed between the sleeve 2 and the fixed base 1 to achieve position fixation. The fixed base 1 is fixed to an external loading vehicle or equipment. The bottom end of the sleeve 2 is trumpet-shaped, and the bottom edge of the sleeve 2 is integrally formed with spiked teeth. The trumpet shape and spiked teeth can improve the stability during drilling. A drive motor 3 is installed on the top of the fixed base 1. The drive end of the drive motor 3 is connected to a drive rod 4 located at the center of the sleeve 2. A tenon 5 is limited and slidable on the outer periphery of the drive rod 4. The bottom end of the tenon 5 is a conical tip structure, and a spiral part 6 is provided on the outer periphery of the tenon 5. A sampling port is opened on one side of the sleeve 2, and a blower 9 is connected to the other side of the sleeve 2. The blower 9 is composed of a fan, a blower, a filter screen, etc. The operation of the blower 9 can blow the spiral part 6 and the conical tip structure, blowing off excess soil for easy cleaning.

[0022] To facilitate drilling, a top-pressure structure 8 is installed above the tenon 5. The top-pressure structure 8 includes a central gear 801 fixed to the drive rod 4. Multiple meshing gears 802 mesh around the central gear 801. A one-way bearing 803 is positioned at the center of each meshing gear 802. The limiting direction of the one-way bearing 803 is the drilling direction of the spiral section 6. A cylindrical cam 804 is connected to the inner ring of the one-way bearing 803. The cylindrical cam 804 has a curved groove. A lifting sleeve 805 is fitted around the outer ring of the cylindrical cam 804. A fixing hoop 10 is slidably positioned around the outer ring of the lifting sleeve 805. An extension rod is fixed to the inner wall of the sleeve 2 around the outer ring of the fixing hoop 10. A limiting part is integrally formed on the inner ring of the lifting sleeve 805, and the curved groove matches the limiting part. Thus, when the cylindrical cam 804 rotates, the lifting sleeve 805 can move up and down. The pressure plate 806, equipped with the pressing tenon 5, achieves the aforementioned limiting sliding through the groove and the matching block. Thus, when the drive rod 4 rotates, the meshing transmission of the central gear 801 and the meshing gear 802 causes the cylindrical cam 804 to rotate and the lifting sleeve 805 to move, causing the pressure plate 806 to press down on the tenon 5, providing a downward pressure so that its tip can be smoothly screwed in. The reverse rotation direction is the free end of the one-way bearing 803, and the cylindrical cam 804 rotates in this direction so that when returning to the original state, the lifting sleeve 805 will not interfere with the movement of the tenon 5. It should be noted that the spiral progress of the spiral part 6 corresponds to the descent rate of the lifting sleeve 805. This can be achieved by designing central gears 801 and meshing gears 802 with different diameters. The specific design depends on the dimensions of the spiral part 6 and the cylindrical cam 804.

[0023] To achieve sampling at different depths, the outer edge of the spiral part 6 is provided with multiple equally spaced layered scraping structures 7. The layered scraping structure 7 includes an arc seat 701, which is adapted to the spiral trajectory of the spiral part 6. The spiral part 6 has a recessed inner arc groove, and the inner circumference of the inner arc groove fits against the outer circumference of the arc seat 701. A collecting arc plate 702 is movably connected to one side of the arc seat 701. Through the movable connection, the collecting arc plate 702 can be easily removed and replaced with a new one, which is convenient for sample removal and replacement. One end of the collecting arc plate 702 is designed with an arc surface, and the other end of the collecting arc plate 702 has an opening. The layered scraping structure 7 also includes a tenon rod 703 and a tenon sleeve 704 that are interlocked. One end of the tenon rod 703 is fixed to the inner wall of the inner arc groove, and a spring 705 is provided between the tenon rod 703 and the tenon sleeve 704.

[0024] Working Principle: This embodiment provides a bridge foundation testing device for construction engineering. In use, it can be mounted on a loading vehicle and moved to the sampling position. The drive motor 3 is controlled by an external control structure or the loading vehicle control system, causing the drive rod 4 to rotate. At this point, the one-way bearing 803 is in the limiting direction, the central gear 801 rotates, driving the meshing gear 802 to rotate, causing the cylindrical cam 804 to drive the lifting sleeve 805 to descend, causing the pressure plate 806 to press down on the tenon 5. Simultaneously, the tenon 5 slides against the limiting direction of the drive rod 4. Furthermore, the tenon 5 will rotate synchronously, causing its cone tip and the bottom of the spiral part 6 to insert into the ground. During the rotation of the spiral part 6 into the ground, due to the design of the collecting arc plate 702 with a sloping arc surface at one end, it can... The retractable design allows the collecting arc plate 702 to retract into the inner arc groove, where it does not collect soil. Once it reaches the collection position, the drive motor 3 drives the drive rod 4 to rotate in the opposite direction. At this time, it rotates slowly, and through the elastic force of the spring 705 and the straight surface design of the other end of the collecting arc plate 702, it can scrape the side wall at the corresponding depth to achieve sampling. After scraping for a period of time, the collecting arc plate 702 will be full, preventing soil of different depths from mixing in during its ascent. In the final stage of ascent, the tenon 5 will contact the lifting sleeve 805. Due to the design of the free end of the one-way bearing 803, the cylindrical cam 804 will rotate in coordination, ensuring that the lifting sleeve 805 does not interfere with the tenon 5. Personnel can then remove the corresponding collecting arc plate 702 from the sampling port.

[0025] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A bridge foundation testing device for building construction, characterized in that, The utility model provides a kind of sampling device, including fixed seat (1), the fixed seat (1) bottom is provided with sleeve (2), the fixed seat (1) top is equipped with driving motor (3), driving end of driving motor (3) is connected with the driving rod (4) in the center of sleeve (2), the driving rod (4) outer periphery is limited to slide tenon column (5), the tenon column (5) bottom end is taper tip structure, the tenon column (5) outer periphery is provided with spiral part (6), the spiral part (6) outer edge is provided with a plurality of layered sample scraping structures (7) of equidistant distribution, the tenon column (5) top is provided with top pressure structure (8).

2. The bridge foundation detection device for construction engineering according to claim 1, characterized in that, The fixed seat (1) is fixed with external loading vehicle or equipment, the bottom edge of the sleeve (2) is integrally formed with a sharp tooth shape, a sampling port is formed on one side of the sleeve (2), and the sleeve (2) is communicated with a blast part (9) on the other side.

3. The bridge foundation detection device for construction engineering according to claim 1, characterized in that, The layered sample scraping structure (7) includes an arc seat (701), the arc seat (701) is adapted to the spiral track of the spiral part (6), the spiral part (6) is provided with a recessed inner arc groove, the inner arc groove inner periphery is attached to the outer periphery of the arc seat (701), the arc seat (701) is movably connected with a collection arc plate (702) on one side, the collection arc plate (702) is designed as an arc surface on one end, and an opening is formed on the other end of the collection arc plate (702).

4. The bridge foundation detection device for construction work according to claim 3, characterized by The layered sample scraping structure (7) further includes a tenon rod (703) and a tenon sleeve (704) that are mutually tenon-inserted, one end of the tenon rod (703) is fixed to the inner wall of the inner arc groove, and a spring (705) is arranged between the tenon rod (703) and the tenon sleeve (704).

5. The bridge foundation detection device for construction work according to claim 4, wherein The top pressure structure (8) includes a center gear (801) fixed with the driving rod (4), a plurality of meshing gears (802) are engaged with the outer periphery of the center gear (801), a one-way bearing (803) is arranged at the center of the meshing gear (802), a cylindrical cam (804) is connected to the inner ring of the one-way bearing (803), the cylindrical cam (804) is provided with a curved groove, the cylindrical cam (804) is sleeved with a lifting sleeve (805) on the outer periphery, the inner periphery of the lifting sleeve (805) is integrally formed with a limiting portion, and a pressing plate (806) is mounted on the outer periphery of the lifting sleeve (805) to press the tenon column (5).

6. The bridge foundation detection device for construction work according to claim 5, wherein The outer periphery of the lifting sleeve (805) is limited to slide a fixing hoop (10), and the outer periphery of the fixing hoop (10) is fixed with the inner wall of the sleeve (2).

Images