A construction recorder for gravity penetration

By designing a gravity penetration construction recorder that automatically records the number and depth of hammer strikes, the problem of manual counting errors in dynamic penetration tests was solved, and data accuracy and convenience were achieved.

CN113537438BActive Publication Date: 2025-09-09SICHUAN GEOPHYSICAL SURVEY INST +1
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Patent Information

Application Number
CN202110749189.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-07-01
Publication Date
2025-09-09
Estimated Expiration
2041-07-01

AI Technical Summary

Technical Problem

In dynamic penetration tests, manual counting of hammer blows and elevation records is prone to errors, resulting in inaccurate data and affecting construction analysis.

Method used

A gravity penetration construction recorder was designed, which used elevation control components and counting components to automatically record the number of hammer blows and drilling depth. It included a magnetostrictive displacement sensor and a counting head, and transmitted the signal to the processor via a data cable for automatic recording.

Benefits of technology

It improves the accuracy of data, reduces human errors, and facilitates later construction analysis.

✦ Generated by Eureka AI based on patent content.

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Abstract

A construction recorder for gravity penetration includes a power probe, a conical probe, an elevation control component and a counting assembly. The elevation control component and the counting assembly are respectively connected to the power probe, and the conical probe is installed at the end of the power probe. The drilling depth of the power probe is sensed by the setting of the elevation control component, and the number of hammer blows is recorded by the counting assembly. No manual recording is required, which improves data accuracy and facilitates later construction analysis.
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Description

Technical Field

[0001] The invention belongs to the technical field of construction, and in particular relates to a construction recorder for gravity penetration. Background Art

[0002] Dynamic probing, also known as cone penetration testing (DPT), uses a heavy hammer of a certain mass to drive a standard-specification probe connected to a probe rod into the soil. The mechanical properties of the soil are determined by the number of hammer blows required for the probe to penetrate 10cm or 30cm into the soil. It has the dual functions of investigation and testing.

[0003] At present, dynamic probing devices are used to conduct dynamic probing tests in the construction of houses, road projects, municipal projects and water conservancy projects. Usually, the soil layers used for dynamic probing tests are relatively hard, and the number of dynamic probing blows is relatively large. It is troublesome for implementers to count the number of dynamic probing blows, and it is easy to make mistakes. Summary of the Invention

[0004] In view of the above shortcomings, the technical problem to be solved by the present invention is to provide a construction recorder for gravity penetration, which can automatically record the elevation of the penetration and the number of hammer blows, improve data accuracy, and facilitate later construction analysis.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A construction recorder for gravity penetration includes a power probe, a conical probe, an elevation control component and a counting assembly. The elevation control component and the counting assembly are respectively connected to the power probe, and the conical probe is installed at the end of the power probe.

[0007] Furthermore, the counting assembly includes a counting head, contacts and a data line. The counting head is slidably installed in the power probe rod. The contacts are adapted to the counting head, and the data line is connected to the contacts.

[0008] Furthermore, a counting installation groove is dug inside the power probe rod, the counting head is slidably installed in the counting installation groove, and the contacts are fixedly installed on the inner wall of the counting installation groove.

[0009] Furthermore, the counting mounting groove includes a counting head mounting portion and a spring mounting portion. The counting head is slidably mounted in the counting head mounting portion. A reset spring is installed in the spring mounting portion. The two ends of the reset spring are respectively connected to the spring mounting portion and the counting head to drive the counting head to reset. The contact is installed on one side of the spring mounting portion.

[0010] Furthermore, a wire groove is formed in the power probe rod, and the data line is passed through the wire groove.

[0011] Furthermore, the dynamic probing device includes a processor, and the elevation control component and the counting component are respectively connected to the processor to record the elevation control component and the counting component data.

[0012] Furthermore, the conical probe is detachably connected to the power probe rod.

[0013] Furthermore, the construction recorder also includes a drilling rod, which has an installation groove formed in it. The power probe rod is fixedly installed in the installation groove. A hammer power part and a sand and soil hedging pipeline are installed in the drilling rod. The hammer power part is connected to the counting component to hammer the counting component. The sand and soil hedging pipeline is set to hedge the counting component.

[0014] Furthermore, the hammer assembly includes a hammer power, a hammer column and a hammer flange. A hammer groove is formed in the drilling rod, the hammer groove is connected to the mounting groove, the hammer column is slidably installed in the hammer groove, the hammer power is connected to the hammer column, and the hammer flange cover is arranged on the end face of the hammer groove.

[0015] Furthermore, the sand-soil hedging pipeline includes a main channel, an end face channel and a hedging channel. The end face channel and the hedging channel are respectively connected to the main channel. The main channel is set toward the gap between the power probe rod and the installation groove, and the hedging channel is set toward the connection between the counting component and the power probe rod.

[0016] The beneficial effect of the present invention is that the drilling depth of the power probe is sensed by the setting of the elevation control component, and the number of hammer blows is recorded by the counting component, without the need for manual recording, thereby improving data accuracy and facilitating later construction analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a half-section schematic diagram of the power probe.

[0018] Figure 2 It is a half-section schematic diagram after the drilling rod and the power probe are connected.

[0019] Figure numbers: power probe rod 1, cone probe 2, elevation control component 3, counting assembly 4, counting head 5, contact 6, data cable 7, counting mounting groove 8, counting head mounting part 9, spring mounting part 10, return spring 11, wire groove 12, processor 15, drilling rod 16, mounting groove 17, hammer power 18, hammer column 19 and hammer flange 20, hammer groove 21, main flow channel 22, end face channel 23, hedge channel 24. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] A construction recorder for gravity penetration includes a power probe 1, a conical probe 2, an elevation control component 3 and a counting component 4. The elevation control component 3 and the counting component 4 are respectively connected to the power probe 1. The conical probe 2 is installed at the end of the power probe 1. Through the setting of the elevation control component 3, the drilling depth of the power probe 1 is sensed, and the number of hammer blows is recorded through the counting component 4. No manual recording is required, which improves data accuracy and facilitates later construction analysis.

[0022] The counting assembly 4 includes a counting head 5, a contact 6 and a data line 7. The counting head 5 is slidably installed in the power probe 1. The contact 6 is adapted to the counting head 5. The data line 7 is connected to the contact 6. When the counting head 5 is hammered, the counting head 5 collides with the contact 6, generating a pulse signal, and the pulse signal is transmitted through the data line 7 to complete a count.

[0023] A counting installation groove 8 is dug inside the power probe 1, and the counting head 5 is slidably installed in the counting installation groove 8. The contact 6 is fixedly installed on the inner wall of the counting installation groove 8, so that the contact 6 generates a pulse signal.

[0024] The counting mounting groove 8 includes a counting head mounting portion 9 and a spring mounting portion 10. The counting head 5 is slidably mounted in the counting head mounting portion 9. A reset spring 11 is installed in the spring mounting portion 10. The two ends of the reset spring 11 are respectively connected to the spring mounting portion 10 and the counting head 5 to drive the counting head 5 to reset. The contact 6 is mounted on one side of the spring mounting portion 10. The setting of the spring mounting portion 10 facilitates the installation of the reset spring 11 on the one hand, and facilitates the contact 6 with the counting head 5 on the other hand.

[0025] A wire groove 12 is formed in the power probe 1 , and the data wire 7 is passed through the wire groove 12 , so as to facilitate the connection between the data wire and the contact 6 .

[0026] The elevation control component 3 is installed on the data line 7, and the elevation control component 3 adopts a magnetostrictive displacement sensor. The magnetostrictive displacement sensor has a large detection stroke and high accuracy.

[0027] The dynamic probing device includes a processor 15 , and the elevation control component 3 and the counting component 4 are respectively connected to the processor 15 to record the data of the elevation control component 3 and the counting component 4 .

[0028] The conical probe 2 is detachably connected to the power probe 1, so that the conical probe 2 can be easily replaced according to experimental requirements.

[0029] The construction recorder also includes a drilling rod 16, which has an installation groove 17 formed therein. The power probe rod 1 is fixedly installed in the installation groove 17. A hammer power part and a sand-soil hedging pipeline are installed in the drilling rod 16. The hammer power part is connected to the counting component 4 to facilitate the dynamic probing experiment. The counting component 4 is hammered, and the sand-soil hedging pipeline is set to hedge the counting component 4 to prevent jamming between the counting component 4 and the power probe rod 1.

[0030] The hammer assembly includes a hammer power 18, a hammer column 19 and a hammer flange 20. A hammer groove 21 is formed in the drilling rod 16, and the hammer groove 21 is connected to the mounting groove 17. The hammer column 19 is slidably installed in the hammer groove 21. The hammer power 18 is connected to the hammer column 19. The hammer flange 20 is covered on the end face of the hammer groove 21. The hammer column is slidably installed in the hammer groove 21 through a linear bearing 25. The hammer power 18 is a cylinder, which is convenient for driving the hammer column 19 to hammer the hammer assembly 4, thereby facilitating the dynamic probing experiment. By setting the hammer flange 20, the sealing of the fitting surface between the hammer column 19 and the hammer groove 21 is maintained.

[0031] The sand and soil hedging pipeline includes a mainstream channel 22, an end face channel 23 and a hedging channel 24. The end face channel 23 and the hedging channel 24 are respectively connected to the mainstream channel 22. The mainstream channel 22 is arranged toward the gap between the power probe rod 1 and the mounting groove 17, which is convenient for high-pressure water flushing of the gap between the power probe rod 1 and the mounting groove 17, and can reduce large particles of impurities falling into the counting mounting groove 8, ensuring that the dynamic probing test can be carried out smoothly. The hedging channel 24 is arranged toward the connection between the counting component 4 and the power probe rod 1, and can be flushed when the counting component 4 and the power probe rod 1 are stuck, thereby improving the stability of the dynamic probing test of this device.

[0032] In some preferred embodiments, a wire hole 26 is formed on the drilling rod 16. The wire hole 26 facilitates the insertion of the data wire 7 and protects the data wire 7, thereby improving the stability of data transmission.

[0033] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein, but is to be embodied in the widest possible manner consistent with the principles and novel features disclosed herein.

[0034] Although this article uses more terms corresponding to the figure marks in the figures, it does not exclude the possibility of using other terms; these terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A construction recorder for gravity penetration, characterized in that: The utility model comprises a power probe rod (1), a conical probe (2), an elevation control component (3) and a counting assembly (4); the elevation control component (3) and the counting assembly (4) are respectively connected to the power probe rod (1); and the conical probe (2) is installed at the end of the power probe rod (1); The counting assembly (4) includes a counting head (5), a contact (6) and a data line (7), wherein the counting head (5) is slidably mounted in the power probe (1), the contact (6) is adapted to the counting head (5), and the data line (7) is connected to the contact (6); A counting installation groove (8) is dug inside the power probe rod (1), a counting head (5) is slidably installed in the counting installation groove (8), and a contact (6) is fixedly installed on the inner wall of the counting installation groove (8); The counting installation groove (8) includes a counting head installation portion (9) and a spring installation portion (10). The counting head (5) is slidably installed in the counting head installation portion (9). A reset spring (11) is installed in the spring installation portion (10). The two ends of the reset spring (11) are respectively connected to the spring installation portion (10) and the counting head (5) to drive the counting head (5) to reset. The contact is installed on one side of the spring installation portion (10). The construction recorder further comprises a drilling rod (16), a mounting groove (17) is formed in the drilling rod (16), a power probe (1) is fixedly mounted in the mounting groove (17), a hammering power component and a sand-soil hedging pipeline are mounted in the drilling rod (16), the hammering power component is connected to the counting assembly (4) to hammer the counting assembly (4), and the sand-soil hedging pipeline is arranged to hedging against the counting assembly (4).

2. A construction recorder for gravity penetration according to claim 1, characterized in that: A wire groove (12) is formed in the power probe rod (1), and the data line (7) is passed through the wire groove (12).

3. A construction recorder for gravity penetration according to claim 1, characterized in that: The construction recorder further comprises a processor (15), and the elevation control component (3) and the counting component (4) are respectively connected to the processor (15) to record the data of the elevation control component (3) and the counting component (4).

4. A construction recorder for gravity penetration according to claim 1, characterized in that: The conical probe (2) is detachably connected to the power probe rod (1).

5. A construction recorder for gravity penetration according to claim 1, characterized in that: The hammer assembly comprises a hammer power (18), a hammer column (19) and a hammer flange (20). A hammer groove (21) is formed in the drilling rod (16), the hammer groove (21) is connected to the installation groove (17), the hammer column (19) is slidably installed in the hammer groove (21), the hammer power (18) is connected to the hammer column (19), and the hammer flange (20) is covered on the end surface of the hammer groove (21).

6. A construction recorder for gravity penetration according to claim 5, characterized in that: The sand-soil hedging pipeline comprises a main flow channel (22), an end face channel (23) and a hedging channel (24); the end face channel (23) and the hedging channel (24) are respectively connected to the main flow channel (22); the main flow channel (22) is arranged toward the gap between the power probe (1) and the mounting groove (17); and the hedging channel (24) is arranged toward the connection between the counting component (4) and the power probe (1).

Citation Information

Patent Citations

  • Penetration test equipment and penetration test recorder thereof

    CN110924932A