Road foundation bearing capacity detection equipment

Abstract

The utility model relates to the technical field of road foundation bearing capacity detection, in particular to road foundation bearing capacity detection equipment which comprises a rack, a controller arranged on one side of the rack, a sliding frame, a stress base, a driving assembly used for driving the sliding frame to ascend or descend, and a hammer body installed at the bottom of the sliding frame. The top end of the feeler lever is fixed to the stress base, the connecting piece is arranged on the stress base, the driving assembly drives the sliding frame to drive the hammer body to downwards knock the stress base, the bottom end of the feeler lever at the bottom of the stress base is inserted into a foundation, and the connecting piece is used for connecting the hammer body with the stress base; according to the utility model, the feeler lever can be automatically pulled out from the foundation after detection is completed, so that more time and labor are saved, and the detection efficiency of the device is also improved.

Description

Technical Field

[0001] This utility model relates to the field of highway foundation bearing capacity testing technology, specifically a highway foundation bearing capacity testing device. Background Technology

[0002] During the construction of highway foundations, probes need to be driven into the foundation to test its bearing capacity. For example, Chinese patent CN214668150U discloses a foundation bearing capacity testing and surveying device, which relates to the field of foundation testing technology. The device includes a frame with two symmetrical mounting plates fixedly connected to the bottom surface of the frame. Each mounting plate has a set of casters installed on its bottom surface. A protective cover is fixedly connected to the upper surface of the frame. A hoisting assembly is installed inside the protective cover. Two symmetrical slide rails are fixedly connected to the inner wall of the frame, and a sliding strip is slidably connected between the two slide rails. A through hole is provided in the inner bottom wall of the frame.

[0003] However, in practical applications, the above-mentioned device still has the following shortcomings: after each use, the probe rod needs to be manually pulled out of the foundation. Since the manual pulling process is quite time-consuming and laborious, and each section of highway foundation needs to be tested multiple times, the detection efficiency of the device is low. Utility Model Content

[0004] The purpose of this invention is to address the above-mentioned shortcomings by providing a highway foundation bearing capacity testing device that can automatically pull the probe out of the foundation after the test is completed, saving time and effort and improving the testing efficiency of the device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A highway foundation bearing capacity testing device includes a frame, a controller disposed on one side of the frame, a slide and a bearing seat that slide vertically, a drive assembly for driving the slide to rise or fall, a hammer mounted on the bottom of the slide, a probe rod fixed at the top of the bearing seat, and a connector disposed on the bearing seat. The drive assembly drives the slide to move the hammer downward to strike the bearing seat, causing the bottom end of the probe rod at the bottom of the bearing seat to insert into the foundation. The connector is used to connect the hammer and the bearing seat.

[0007] Furthermore, the drive assembly includes a slide bar vertically mounted on the frame, a cylinder fixed to the top of the frame, the slide and the force-bearing seat being slidably connected up and down on the slide bar, and the piston rod head of the cylinder driving the slide vertically downward.

[0008] Furthermore, the bottom end of the hammer body is provided with multiple internal threaded holes, and the force-bearing seat is provided with blind holes opposite to the internal threaded holes; the connecting component includes an electric push rod fixed to the bottom end of the blind hole, a slider slidably connected to the blind hole, and a motor provided in the slider. The output end of the motor extends upward through the slider and is connected to a stud. The piston rod head of the electric push rod extends vertically upward to drive and connect to the slider. When the electric push rod drives the slider to move upward, the motor drives the stud to rotate and screw into the internal threaded hole.

[0009] Furthermore, the bottom of the frame is equipped with casters.

[0010] Furthermore, a push-pull handle is provided on one side of the frame.

[0011] The beneficial effects of this utility model are:

[0012] In practical applications, the frame is moved to the test point, and the controller controls the drive assembly to drive the slide to move the hammer downwards to strike the force-bearing seat, causing the bottom of the probe to insert into the foundation for testing. After the test is completed, the drive assembly drives the slide to move the hammer downwards to press against the force-bearing seat. The hammer and the force-bearing seat are connected by a connector, and the drive assembly drives the slide to move the hammer upwards again, thus pulling the probe at the bottom of the force-bearing seat out of the foundation. This invention can automatically pull the probe out of the foundation after the test is completed, saving time and effort and improving the testing efficiency of the device. Attached Figure Description

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

[0014] Figure 2 This is the right view of the present invention;

[0015] Figure 3 yes Figure 2 Sectional view at point AA;

[0016] Figure 4 yes Figure 3 A magnified view of a section at point B in the middle;

[0017] Reference numerals: Frame 1; Roller 11; Push-pull handle 12; Slide 2; Force-bearing seat 3; Blind hole 31; Drive assembly 4; Slide rod 41; Cylinder 42; Hammer 5; Internal threaded hole 51; Probe 6; Connector 7; Electric push rod 71; Slider 72; Motor 73; Stud 74. Detailed Implementation

[0018] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a highway foundation bearing capacity testing device includes a frame 1, a controller disposed on one side of the frame 1, a slide 2 and a bearing seat 3 that are slidably disposed vertically, a drive assembly 4 for driving the slide 2 to rise or fall, a hammer 5 installed at the bottom of the slide 2, a probe 6 fixed at the top of the bearing seat 3, and a connector 7 disposed on the bearing seat 3. The drive assembly 4 drives the slide 2 to move the hammer 5 to strike the bearing seat 3 downward, so that the bottom end of the probe 6 at the bottom of the bearing seat 3 is inserted into the foundation. The connector 7 is used to connect the hammer 5 and the bearing seat 3.

[0019] In use, the frame is moved to the test point, and the controller controls the drive assembly to drive the slide to move the hammer downwards to strike the force-bearing seat, causing the bottom of the probe to insert into the foundation for testing. After the test is completed, the drive assembly drives the slide to move the hammer downwards to press against the force-bearing seat. The hammer and the force-bearing seat are connected by a connector. The drive assembly then drives the slide to move the hammer upwards again, which pulls the probe from the foundation. This invention can automatically pull the probe from the foundation after the test is completed, saving time and effort and improving the testing efficiency of the device.

[0020] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the drive assembly 4 includes a slide rod 41 vertically mounted on the frame 1, a cylinder 42 fixed to the top of the frame 1, and the slide 2 and the force-bearing seat 3 slidably connected to the slide rod 41. The piston rod head of the cylinder 42 drives the slide 2 vertically downward. In this embodiment, during the process of the cylinder 42 driving the slide 2 to slide up and down, the slide 2 slides up and down along the slide rod 41. The cylinder 42 is an electric cylinder, a pneumatic cylinder, or a hydraulic cylinder.

[0021] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the hammer body 5 has multiple internal threaded holes 51 at its bottom end, and the force-bearing seat 3 has a blind hole 31 directly opposite the internal threaded holes 51. The connecting member 7 includes an electric push rod 71 fixed to the bottom end of the blind hole 31, a slider 72 slidably connected to the blind hole 31, and a motor 73 disposed in the slider 72. The output end of the motor 73 extends upward through the slider 72 and is connected to a stud 74. The piston rod head of the electric push rod 71 extends vertically upward to drive and connect to the slider 72. When the electric push rod 71 drives the slider 72 to move upward, the electric... The motor 73 drives the stud 74 to rotate and screw into the internal threaded hole 51. In this embodiment, when the probe 6 needs to be pulled out, the electric push rod 71 drives the slider 72 to move upward, and at the same time, the motor 73 drives the stud 74 to rotate clockwise and screw into the internal threaded hole 51, connecting the hammer body 5 and the force seat 3. The drive assembly 4 drives the slide 2 to lift the hammer body 5 again, so that the probe 6 at the bottom of the force seat 3 can be pulled out from the foundation. When it needs to be used again, the electric push rod 71 drives the slider 72 to move downward, and at the same time, the motor 73 drives the stud 74 to rotate counterclockwise and screw out of the internal threaded hole 51, separating the hammer body 5 and the force seat 3 so that it can be used again.

[0022] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the bottom of the frame 1 is provided with rollers 11; in this embodiment, the rollers 11 make the device easier to move.

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a push-pull handle 12 is provided on one side of the frame 1; in this embodiment, the push-pull handle 12 makes the device easier to move and can also hold the device in place to prevent it from moving during use.

[0024] The specific embodiments described herein are merely illustrative examples of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the scope defined by this utility model.

Claims

1. A highway subgrade bearing capacity detection device, characterized in that: The utility model provides a kind of hammering machine, including rack (1), controller being arranged in one side of the rack (1), sliding carriage (2) and force seat (3) being arranged up and down, the drive assembly (4) for driving the sliding carriage (2) to ascend or descend is used, hammer body (5) is installed in the bottom of the sliding carriage (2), the probe rod (6) is fixed on the top end of the force seat (3), and connecting piece (7) is arranged on the force seat (3), the drive assembly (4) drives sliding carriage (2) to drive hammer body (5) to knock force seat (3) downward, so that the probe rod (6) bottom end of force seat (3) bottom is inserted into foundation, and the connecting piece (7) is used to connect the hammer body (5) and force seat (3).

2. The highway subgrade bearing capacity detection equipment according to claim 1, characterized in that, The drive assembly (4) includes slide rod (41) being arranged vertically on the rack (1), cylinder (42) being fixed in the top end of the rack (1), and the sliding carriage (2) and force seat (3) are both connected up and down on the slide rod (41), and the piston rod head of the cylinder (42) is driven to connect the sliding carriage (2) vertically downward.

3. The highway subgrade bearing capacity detection equipment according to claim 1, characterized in that, The hammer body (5) bottom end is provided with a plurality of internal thread holes (51), and the force seat (3) is provided with blind hole (31) opposite the internal thread hole (51) on the force seat (3);The connecting piece (7) includes electric push rod (71) being fixed in the bottom end of the blind hole (31), sliding block (72) being connected up and down in the blind hole (31), and motor (73) being arranged in the sliding block (72), the output end of the motor (73) is connected with stud (74) after being up and out of the sliding block (72), and the piston rod head of the electric push rod (71) is vertically up and out to drive the sliding block (72), when the electric push rod (71) drives sliding block (72) to move up, motor (73) drives stud (74) to rotate and screw into the internal thread hole (51).

4. The highway subgrade bearing capacity detection equipment according to claim 1, characterized in that, The bottom of the rack (1) is provided with a plurality of rollers (11).

5. The highway subgrade bearing capacity detection equipment according to claim 1, characterized in that, One side of the rack (1) is provided with push-pull handle (12).

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