Foundation bearing capacity electric penetrometer

Abstract

The utility model relates to a foundation bearing capacity electric penetrometer which comprises a drill rod detection assembly and a lifting assembly, the drill rod detection assembly comprises a shell, a drill rod detection rod arranged below the shell and a heavy hammer movably arranged in the shell, the heavy hammer is provided with a hammer rod used for guiding, the side surface of the hammer rod is provided with a supporting rod in the transverse direction, and the supporting rod is connected with the shell. The lifting assembly comprises a rotating shaft arranged in the shell, and the rotating shaft is provided with lifting blades used for lifting up / releasing the supporting rod in the radial direction. According to the utility model, the automatic running electric penetrometer is arranged, the motor is used for driving, the infrared sensor is used for automatically recording the number of drop hammers and the driving depth, and the heavy hammers can be repeatedly lifted up and dropped down for exploration operation according to exploration requirements, so that the defects of traditional manual exploration are overcome, the labor intensity of workers is reduced, and the working efficiency is improved; the device is suitable for surveying a small number of foundations, is more suitable for surveying a large area of foundations, and is wide in application range.

Description

Technical Field

[0001] This utility model belongs to the field of foundation surveying, and specifically relates to an electric penetrometer for foundation bearing capacity. Background Technology

[0002] Before foundation and substructure construction, large-scale petroleum, chemical, and integrated industrial park construction projects need to conduct a bearing capacity survey of the foundation. Traditional probing instruments are mostly manual, which involves holding a 10kg mandrel with both hands, lifting it 500mm to the limit switch, and then releasing it. The mandrel falls freely onto the hammer pad, allowing the probe rod to penetrate into the foundation soil layer. A record is made every 300mm of penetration, and this lifting and lowering process is repeated.

[0003] This repeated lifting and lowering process is physically demanding for exploration workers, with high labor intensity and low efficiency. For large-area, long-distance, and tight-term engineering foundation surveys, the use of traditional probes can no longer meet the needs of the projects. Utility Model Content

[0004] The purpose of this invention is to provide an electric ground bearing capacity probe to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] An electric penetrometer for foundation bearing capacity includes a probing assembly and a lifting assembly. The probing assembly includes a housing, a probing rod disposed below the housing, and a counterweight movably disposed within the housing. The counterweight is provided with a guide rod, and a support rod is provided on the side surface of the guide rod in a transverse direction. The lifting assembly includes a rotating shaft disposed within the housing, and the rotating shaft is provided with lifting blades in a radial direction for lifting / releasing the support rod.

[0007] As a further optimization of this utility model, the probe also includes a sensing component, which includes a ranging probe disposed inside the housing, a counting probe disposed inside the housing, and a display controller electrically connected to the ranging probe and the counting probe. The counting probe faces the direction of the hammer and is used to record the number of times the hammer rises and falls. The ranging probe faces the ground and is used to measure the depth of the probe rod driven into the soil layer.

[0008] As a further optimization of this utility model, the housing is provided with a mounting bracket for installing a counting probe, wherein the counting probe is used to count according to the number of times the support rod goes back and forth. This solution counts by recording the number of times the support rod goes back and forth, or it can be counted by setting a marking surface on the hammer rod.

[0009] As a further optimization of this utility model, a hammer pad is provided on the lower surface of the housing, and the probe rod is assembled with the hammer pad.

[0010] As a further optimization of this utility model, the probe rod is a telescopic rod with a cone head at the bottom. The cone head is conical, flat at the top and pointed at the bottom, which makes it easy to drive into or penetrate the soil layer and provides a certain resistance. The upper part is welded to the probe rod.

[0011] As a further optimization of this utility model, a guide cylinder is provided on the top wall of the housing, and the hammer rod is slidably connected to the guide cylinder. The upper middle section of the hammer rod is provided with symmetrical convex sliding strips on both sides, which cooperate with the symmetrical concave sliding grooves on both sides of the inner wall of the guide cylinder. The function is to prevent the hammer from rotating during the up and down process and to ensure that the lifting blade and the support rod mesh smoothly.

[0012] As a further optimization of this utility model, the support rod has two parts, which extend radially along the hammer rod respectively. The rotating shaft is parallel to the support rod, and lifting blades are provided at both ends of the rotating shaft to facilitate lifting the hammer rod from the support rods on both sides, which is beneficial to the force balance.

[0013] As a further optimization of this utility model, the lifting component also includes a connector disposed inside the housing and a housing disposed on the connector. The rotating shaft is disposed through the housing, and a motor for driving the rotating shaft to rotate is disposed on the housing. The output shaft end of the motor is connected to the rotating shaft through a bevel gear transmission.

[0014] The beneficial effects of this utility model are as follows:

[0015] This invention features an automatically operating electric penetrometer driven by a motor. An infrared sensor automatically records the number of hammer drops and the penetration depth. The hammer can be repeatedly lifted and dropped as needed for exploration, overcoming the shortcomings of traditional manual surveying, reducing the labor intensity of workers, and improving work efficiency. It is suitable for both small-scale foundation surveys and large-scale foundation surveys, and has a wide range of applications. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is the utility model Figure 1 Enlarged view of the structure of part A in the middle.

[0018] Figure 3 This is a schematic diagram of the lifting component of this utility model.

[0019] In the diagram: 1. Probing assembly; 11. Housing; 12. Guide cylinder; 13. Hammer rod; 14. Support rod; 15. Counterweight; 16. Hammer pad; 17. Probing rod; 18. Cone head; 2. Sensing assembly; 21. Display controller; 22. Mounting bracket; 23. Counting probe; 24. Distance measuring probe; 3. Lifting assembly; 31. Connector; 32. Housing; 33. Motor; 34. Lifting blades; 35. Rotating shaft; 36. Bevel gear. Detailed Implementation

[0020] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0021] Example 1

[0022] like Figure 1-3 As shown, an electric penetrometer for foundation bearing capacity includes a probing assembly 1 and a lifting assembly 3. The probing assembly 1 includes a housing 11, a probing rod 17 disposed below the housing 11, and a counterweight 15 movably disposed within the housing 11. The counterweight 15 is provided with a guide hammer rod 13, and a support rod 14 is provided laterally on the side surface of the hammer rod 13. The lifting assembly 3 includes a rotating shaft 35 disposed within the housing 11, and the rotating shaft 35 is provided radially with lifting blades 34 for lifting / releasing the support rod 14.

[0023] The probe also includes a sensing component 2, which includes a ranging probe 24 disposed inside the housing 11, a counting probe 23 disposed inside the housing 11, and a display controller 21 electrically connected to the ranging probe 24 and the counting probe 23. The counting probe 23 faces the direction of the hammer 15 and is used to record the number of times the hammer 15 rises and falls. The ranging probe 24 faces the ground and is used to measure the depth of the probe rod 17 driven into the soil layer. Both the counting probe 23 and the ranging probe 24 use infrared sensors. The following is a feasible model: the counting probe 23 uses SX-XFD11, and the ranging probe 24 uses GP2Y0A.

[0024] The housing 11 is provided with a mounting bracket 22 for mounting the counting probe 23, which is used to count based on the number of times the support rod 14 moves back and forth. In this solution, the counting is performed by recording the number of times the support rod 14 moves back and forth. Alternatively, the counting can be performed by setting a marking surface on the hammer rod 13.

[0025] A hammer pad 16 is provided on the lower surface of the housing 11. The probe rod 17 is assembled with the hammer pad 16. In this embodiment, the hammer pad 16 is connected to the lower end of the housing 11 by bolts.

[0026] The probe rod 17 is a telescopic rod, and a cone 18 is provided at the bottom. The cone 18 is conical, flat at the top and pointed at the bottom, which makes it easy to drive into or penetrate the soil layer and provides a certain resistance. The upper part is welded to the probe rod 17.

[0027] The top wall inside the housing 11 is provided with a guide cylinder 12. The hammer rod 13 is slidably connected to the guide cylinder 12. The upper middle section of the hammer rod 13 is provided with symmetrical convex sliding strips on both sides, which cooperate with the symmetrical concave sliding grooves on both sides of the inner wall of the guide cylinder 12. The function is to prevent the hammer 15 from rotating during the up and down process, and to ensure that the lifting blade 34 and the support rod 14 are smoothly engaged.

[0028] There are two support rods 14, each extending radially along the hammer rod 13. A rotating shaft 35 is parallel to the support rods 14, and lifting blades 34 are provided at both ends of the rotating shaft 35 to facilitate lifting the hammer rod 13 from the support rods 14 on both sides, which is beneficial for force balance. Figure 2 As shown, when the lifting blade 34 rotates clockwise and contacts the support rod 14, it lifts the support rod 14. When the lifting blade 34 continues to rotate until it disengages from the support rod 14, that is, when the lifting blade 34 rotates to near vertical position, it can quickly disengage from the contact. The hammer rod 13 will not be blocked or resisted by the lifting blade 34 during its descent.

[0029] The lifting assembly 3 also includes a connector 31 disposed in the housing 11 and a housing 32 disposed on the connector 31. A rotating shaft 35 is disposed through the housing 32. A motor 33 for driving the rotating shaft 35 to rotate is disposed on the housing 32. The output shaft end of the motor 33 is connected to the rotating shaft 35 by a bevel gear 36.

[0030] The specific implementation method is as follows: The electric penetrometer is placed vertically at the location of the foundation to be surveyed. An assistant holds the upper probing rod 17, and the operator plugs the data cables of the counting probe 23, the ranging probe 24, and the power control system of the motor 33 into the display controller 21. The preset number of hammers and the preset depth are input on the display controller 21, and the start button on the display controller 21 is clicked. The motor 33 starts to run, driving the two lifting blades 34 to rotate. During the rotation, the blades gradually approach the support rod 14 until the support rod 14 is lifted. When the lifting blades 34 reach beyond the highest point, they detach from the support rod 14, and the hammer 15 falls freely. The hammer 15 strikes the hammer pad 16, causing the probing rod 17 to enter the soil. At this time, the counting probe 23 records one probing, and the ranging probe 24 records the distance to the ground, that is, the depth of the probing rod 17 at the point of probing. This process is repeated until the preset number of hammers is zero, at which point the motor 33 automatically stops, thus completing the probing survey of the foundation.

[0031] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. An electric cone penetrometer for foundation bearing capacity, characterized in that: The device includes a probing assembly (1) and a lifting assembly (3). The probing assembly (1) includes a housing (11), a probing rod (17) disposed below the housing (11), and a counterweight (15) movably disposed within the housing (11). The counterweight (15) is provided with a hammer rod (13) for guidance, and a support rod (14) is provided on the side surface of the hammer rod (13) in a transverse direction. The lifting assembly (3) includes a rotating shaft (35) disposed within the housing (11), and the rotating shaft (35) is provided with lifting blades (34) in a radial direction for lifting / releasing the support rod (14).

2. The electric cone penetrometer for foundation bearing capacity according to claim 1, characterized in that: It also includes a sensing component (2), which includes a ranging probe (24) disposed inside the housing (11), a counting probe (23) disposed inside the housing (11), and a display controller (21) electrically connected to the ranging probe (24) and the counting probe (23).

3. The electric cone penetrometer for foundation bearing capacity according to claim 2, characterized in that: The housing (11) is provided with a mounting bracket (22) for mounting a counting probe (23), wherein the counting probe (23) is used to count the number of times the support rod (14) moves back and forth.

4. The electric cone penetrometer for foundation bearing capacity according to claim 1, characterized in that: The lower surface of the housing (11) is provided with a hammer pad (16), and the probe rod (17) is assembled with the hammer pad (16).

5. The electric cone penetrometer for foundation bearing capacity according to claim 4, characterized in that: The probe rod (17) is a telescopic rod, and a cone (18) is provided at the bottom.

6. The electric cone penetrometer for foundation bearing capacity according to claim 1, characterized in that: The top wall inside the housing (11) is provided with a guide cylinder (12), and the hammer rod (13) is slidably connected to the guide cylinder (12).

7. The electric cone penetrometer for foundation bearing capacity according to claim 1, characterized in that: The support rod (14) has two parts, which extend radially along the hammer rod (13). The rotating shaft (35) is parallel to the support rod (14), and lifting blades (34) are provided at both ends of the rotating shaft (35).

8. The electric cone penetrometer for foundation bearing capacity according to claim 7, characterized in that: The lifting assembly (3) also includes a connector (31) disposed in the housing (11) and a housing (32) disposed on the connector (31). The rotating shaft (35) is disposed through the housing (32). A motor (33) for driving the rotating shaft (35) to rotate is disposed on the housing (32). The output shaft end of the motor (33) is connected to the rotating shaft (35) through a bevel gear (36).

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