Hole-forming quality detection probe automatic termination lifting device
By designing an automatic termination lifting device for the borehole quality inspection probe, and using a conductive probe to sense the mud environment to automatically control the winch lifting, the problem of damage caused by untimely probe lifting is solved, and the inspection efficiency and time utilization are improved.
Patent Information
- Application Number
- CN202520268792.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-20
AI Technical Summary
In existing drilled pile testing systems, it is difficult to stop the probe lifting process in a timely manner, which leads to damage to the probe and cable. Furthermore, the testing personnel cannot simultaneously observe data and perform operations, resulting in wasted time.
Design an automatic termination lifting device for borehole quality inspection probe. Using a movable joint and controller, the device automatically controls the winch lifting by sensing the mud environment through a conductive probe, ensuring that the probe automatically stops lifting at the borehole opening.
This avoids damage to the probe and cable due to excessive tension, frees up the hands of testing personnel, and improves testing efficiency and time utilization.
Smart Images
Figure CN223840024U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of foundation pile testing technology, specifically relating to an automatic termination lifting device for a hole formation quality testing probe. Background Technology
[0002] Foundations are an important component of buildings, and pile foundations are a widely used type of foundation. Drilled cast-in-place piles are an important type of pile foundation, and the quality of their construction directly determines the stability of the superstructure. Therefore, my country has promulgated corresponding standards and specifications to strictly control their construction quality.
[0003] The construction of bored piles mainly involves drilling, lifting the reinforcing cage, and pouring concrete. After drilling is completed and before lifting the reinforcing cage, the borehole diameter, depth, verticality, and sediment thickness must be tested to ensure they meet design requirements. Currently, a bored pile borehole diameter testing system is commonly used to test these indicators. This system is equipped with an umbrella-shaped borehole diameter measuring probe, an inclination probe, and a sediment measuring probe, all three types of probes using the same interface connection.
[0004] When using a traditional borehole diameter detection system for bored piles, regardless of the type of probe used, the probe is raised and lowered by a winch using a cable. During the probe raising process, the operator must keep the raise button pressed and continuously observe the borehole opening to ensure the probe has reached it. Once the probe is observed to have reached the opening, the operator must immediately release the raise button to stop the raising. Because the borehole opening is often obstructed by equipment or other objects, visibility is often poor, especially at night when conducting borehole quality inspections. If the winch raising is not stopped promptly after the probe reaches the opening, over-tensioning may damage the probe and cable. Furthermore, because the operator must continuously press the raise button and observe the borehole opening while measuring the diameter, they lack the time to monitor and record data in real time, resulting in wasted time.
[0005] Therefore, an automatic termination lifting device for a hole-forming quality detection probe is urgently needed. Utility Model Content
[0006] To address the shortcomings of existing technologies, this utility model provides an automatic termination lifting device for a hole-forming quality detection probe.
[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0008] This utility model provides an automatic termination lifting device for a hole forming quality detection probe, including a movable joint, a multi-core cable, and a controller;
[0009] The movable connector includes a connector housing, a conductive probe, pins, a first insulator, and a second insulator. The connector housing has water inlet and outlet holes on its wall. A plug-in interface is formed at the opening at the bottom of the connector housing. A fixing nut is also installed on the outer wall of the opening at the bottom of the connector housing. The first insulator and the second insulator are installed on the inner wall of the connector housing. The conductive probe is installed on the first insulator. One end of the multi-core cable passes through the top of the connector housing and is installed on the first insulator. The pins are installed on the second insulator, and both ends of the pins protrude from the second insulator in the length direction. The conductive probe and pins are electrically connected to the multi-core cable.
[0010] The controller includes a housing, and a lowering circuit, a lifting circuit, and a driving circuit installed inside the housing. The lowering circuit, the lifting circuit, and the driving circuit are electrically connected to a multi-core cable.
[0011] Preferably, the connector housing includes an upper housing, a middle housing, and a lower housing, with the upper housing and the middle housing being threaded together, and the middle housing and the lower housing being threaded together. The middle housing and the lower housing are also sealed together by a rubber sealing ring.
[0012] Preferably, the wall of the middle housing is provided with water inlet and outlet holes, the first insulator is installed on the inner wall of the middle housing by a rubber sealing ring, and the first insulator is located below the water inlet and outlet holes.
[0013] Preferably, the bottom of the lower housing is open, and a plug-in interface is formed at the bottom opening of the lower housing. A rubber sealing ring is also provided on the bottom outer wall of the plug-in interface. The fixing nut is installed on the outer wall of the bottom opening of the lower housing, and the second insulator is installed on the inner wall of the lower housing.
[0014] Preferably, a cable fixing clip is also provided on the top inner wall of the upper housing. One end of the cable passes through the top inner wall of the upper housing and the cable fixing clip in sequence and is then installed on the first insulator. A rubber sealing ring is also provided between the cable and the first insulator.
[0015] Preferably, the lowering circuit includes a lowering power supply wire interface, a lowering electromagnetic relay, and a lowering control button. The lowering control button and the lowering electromagnetic relay are connected in series and their two ends are electrically connected to the power supply through the lowering power supply wire interface.
[0016] The lifting circuit includes a lifting power wire interface, a probe wire interface, a lifting electromagnetic relay, and a lifting control button. The probe wire interface, the lifting electromagnetic relay, and the lifting control button (29) are connected in series and their two ends are electrically connected to the power supply through the lifting power wire interface.
[0017] The drive circuit includes a first contact, a second contact, a third contact, a fourth contact, a fifth contact, and a winch wire interface. The second and fourth contacts are mounted on an armature with a moving contact. The first contact is mounted below the second contact. The first and second contacts are connected in series with the two ends of the hoisting control button, respectively. The third and fifth contacts are mounted above and below the fourth contact, respectively. The third, fifth, and fourth contacts are electrically connected to the winch motor power supply circuit through the winch wire interface.
[0018] Preferably, the lowering control button includes a lowering button panel, a lowering connecting rod, a lowering bridge-type metal contact, a lowering mounting shell, a lowering spring, and a lowering metal contact. The lowering button panel and the lowering bridge-type metal contact are installed at the top and bottom of the lowering connecting rod, respectively. The lowering connecting rod is movably inserted into the top plate of the lowering mounting shell. The lowering spring is sleeved on the lowering connecting rod, and its two ends abut against the bottom of the lowering button panel and the top of the lowering mounting shell, respectively. The lowering metal contact is installed inside the lowering mounting shell and is located directly below the lowering bridge-type metal contact.
[0019] The lifting control button includes a lifting button panel, a lifting connecting rod, a lifting bridge metal contact, a lifting mounting shell, a lifting spring, and a lifting metal contact. The lifting button panel and the lifting bridge metal contact are installed at the top and bottom of the lifting connecting rod, respectively. The lifting connecting rod is movably inserted into the top plate of the lifting mounting shell. The lifting spring is sleeved on the lifting connecting rod, with its two ends abutting against the bottom of the lifting button panel and the top of the lifting mounting shell, respectively. The lifting metal contact is installed inside the lifting mounting shell and located directly below the lifting bridge metal contact.
[0020] Compared with the prior art, this utility model has the following advantages:
[0021] This invention utilizes a lifting electromagnetic relay to keep the winch in a state where the probe is being lifted, similar to the effect of pressing the lifting button on the controller. The operation of the lifting electromagnetic relay is controlled by the conductive probe in the movable joint being in a conductive environment. When the movable joint at the tail of the measuring probe is submerged in the drilling mud, a conductive path is formed between the two probes in the joint due to the conductivity of the mud. Pressing the lifting control button at this time connects the other circuit supplying power to the lifting electromagnetic relay and the winch power supply circuit, initiating the operation of the lifting electromagnetic relay and the winch. The lifting electromagnetic relay keeps the winch in a state of lifting the measuring probe. When the measuring probe is raised to near the borehole opening, the movable joint at the tail of the probe emerges from the mud surface first. The circuit between the two measuring probes in the movable joint breaks in the air, causing the lifting electromagnetic relay to stop operating. Simultaneously, the circuit supplying power to the motor also disconnects, stopping the winch's lifting operation. This invention avoids damage to the probe and cable caused by excessive tension due to untimely termination of probe lifting, while also freeing up the hands of inspection personnel and improving time utilization. Attached Figure Description
[0022] Figure 1 This is a schematic diagram showing the overall installation and use of the automatic termination lifting device for a hole forming quality detection probe according to this utility model.
[0023] Figure 2 for Figure 1 Cross-sectional view of the movable joint;
[0024] Figure 3 for Figure 1 Schematic diagram of the internal circuit structure of the controller;
[0025] Figure 4 for Figure 1 Cross-sectional view of the control buttons for raising and lowering the central controller. Detailed Implementation
[0026] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.
[0027] In the description of this utility model, it should be understood that the terms "left," "right," etc., indicating the orientation or positional relationship are based on the accompanying drawings. Figure 1 The orientations or positional relationships shown are for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0029] like Figures 1 to 4 As shown, this embodiment provides an automatic termination lifting device for a hole forming quality detection probe, including a movable connector 1, a multi-core cable 2, and a controller 3.
[0030] like Figure 2 As shown, the movable connector 1 includes a connector housing, a conductive probe 9, a pin 11, a first insulator 12, and a second insulator 14. The connector housing includes an upper housing 4, a middle housing 5, and a lower housing 6. The upper housing 4 and the middle housing 5 are threaded together, and the middle housing 5 and the lower housing 6 are threaded together. The middle housing 5 and the lower housing 6 are also sealed together by a rubber sealing ring 7.
[0031] Specifically, a cable fixing clip 15 is provided on the top inner wall of the upper housing 4. One end of the cable 2 passes through the top inner wall of the upper housing 4 and the cable fixing clip 15 in sequence and is then installed on the first insulator 12. A rubber sealing ring 7 is also provided between the cable 1 and the first insulator 12.
[0032] Specifically, the wall of the middle housing 5 is provided with water inlet and outlet holes 8. The first insulator 12 is installed on the inner wall of the middle housing 5 through a rubber sealing ring 7, and the first insulator 12 is located below the water inlet and outlet holes 8. The conductive probe 9 is installed on the first insulator 12, and one end of the multi-core cable 2 passes through the top of the connector housing and is installed on the first insulator 12. The conductive probe 9 is electrically connected to the multi-core cable 2.
[0033] Specifically, the bottom of the lower housing 6 is open, and a plug-in interface 13 is formed at the bottom opening of the lower housing 6. A rubber sealing ring 7 is also provided on the bottom outer wall of the plug-in interface 13. The fixing nut 10 is installed on the outer wall of the bottom opening of the lower housing 6, and the second insulator 14 is installed on the inner wall of the lower housing 6. The pin 11 is installed on the second insulator 14, and its two ends in the length direction protrude from the second insulator 14. The pin 11 is electrically connected to the multi-core cable 2.
[0034] like Figures 3 to 4 As shown, the controller 3 includes a housing 31, and a lowering circuit, a lifting circuit, and a driving circuit installed inside the housing 31. The lowering circuit, the lifting circuit, and the driving circuit are electrically connected to the multi-core cable 2.
[0035] Specifically, the lowering circuit includes a lowering power supply wire interface 24, a lowering electromagnetic relay 27, and a lowering control button 30. The lowering control button 30 and the lowering electromagnetic relay 27 are connected in series and their two ends are electrically connected to the power supply through the lowering power supply wire interface 24. The lowering control button 30 includes a lowering button panel, a lowering connecting rod, a lowering bridge-type metal contact 36, a lowering mounting shell, a lowering spring 37, and a lowering metal contact 35. The lowering button panel and the lowering bridge-type metal contact 36 are mounted on the top and bottom of the lowering connecting rod, respectively. The lowering connecting rod movably passes through the top plate of the lowering mounting shell. The lowering spring 37 is sleeved on the lowering connecting rod, with its two ends abutting against the bottom of the lowering button panel and the top of the lowering mounting shell, respectively. The lowering metal contact 34 is installed inside the lowering mounting shell and located directly below the lowering bridge-type metal contact 33.
[0036] Specifically, the lifting circuit includes a lifting power lead interface 23, a probe lead interface 28, a lifting electromagnetic relay 26, and a lifting control button 29. The probe lead interface 28, the lifting electromagnetic relay 26, and the lifting control button 29 are connected in series and their two ends are electrically connected to the power supply through the lifting power lead interface 23. The lifting control button 29 includes a lifting button panel, a lifting connecting rod, a lifting bridge metal contact 33, a lifting mounting housing, a lifting spring 32, and a lifting metal contact 34. The lifting button panel and the lifting bridge metal contact 33 are mounted on the top and bottom of the lifting connecting rod, respectively. The lifting connecting rod is movably inserted into the top plate of the lifting mounting housing. The lifting spring 32 is sleeved on the lifting connecting rod, with its two ends abutting against the bottom of the lifting button panel and the top of the lifting mounting housing, respectively. The lifting metal contact 34 is installed inside the lifting mounting housing and located directly below the lifting bridge metal contact 33.
[0037] The drive circuit includes a first contact 17, a second contact 18, a third contact 19, a fourth contact 20, a fifth contact 21, and a winch wire interface 22. The second contact 18 and the fourth contact 20 are mounted on an armature with a moving contact. The first contact 17 is mounted below the second contact 18. The first contact 17 and the second contact 18 are connected in series with the two ends of the lifting control button 29, respectively. The third contact 19 and the fifth contact 21 are mounted above and below the fourth contact 20, respectively. The third contact 19, the fifth contact 21, and the fourth contact 20 are electrically connected to the winch motor power supply circuit through the winch wire interface 22.
[0038] The working principle of this embodiment will be further explained below:
[0039] During assembly, the upper housing 4, middle housing 5, and lower housing 6 are first threaded through the multi-core cable 2 in sequence. The wires in the multi-core cable 2 are then soldered to the pins 11 and the conductive probes 9. The middle housing 5 and the lower housing 6 are then connected by threads, and a rubber sealing ring 7 is embedded in the middle to ensure that it is waterproof. The conductive probes 9 are then pressed into the middle housing 5 along with the first insulator 14 and positioned below the water inlet and outlet holes. The multi-core cable clamp 15 is then fastened to the cable at an appropriate position that can hold the top of the upper housing 4. Finally, the upper housing 4 and the middle housing 5 are connected by threads.
[0040] In operation, when the lowering control button 30 is pressed, the lowering bridge metal contact 36 engages with the lowering metal contact 35, the power supply circuit of the lowering electromagnetic relay 27 is connected and begins to operate, the third metal contact 19 engages with the fourth metal contact 20, and the winch begins to lower the measuring probe. The movable connector is connected to the tail of the measuring probe, thus lowering it into the borehole filled with mud. Then, when the lowering control button 30 is released, under the action of the lowering spring 37, the lowering bridge metal contact 36 separates from the lowering metal contact 35, the power supply circuit of the lowering electromagnetic relay 27 is disconnected and stops operating, the third metal contact 19 separates from the fourth metal contact 20, the power supply circuit of the winch motor is disconnected, and the winch stops further lowering the measuring probe.
[0041] With the measuring probe lowered into the borehole and the conductive probe 9 of the movable joint 1 submerged in the mud, pressing the lifting control button 29 causes the lifting bridge metal contact 33 to engage with the lifting metal contact 34. This connects the power supply circuit of the lifting electromagnetic relay 26, which then begins operation. The first metal contact 17 engages with the second metal contact 18, and the fourth metal contact 20 engages with the fifth metal contact 21, causing the winch to begin lifting the measuring probe. Then, releasing the lifting control button 29 causes the lifting bridge metal contact 33 to separate from the lifting metal contact 34 under the action of the lifting spring 32. The power supply circuit of the lifting electromagnetic relay 26, controlled by the engaged first metal contact 17, second metal contact 18, and conductive probe 9, remains connected, ensuring the winch continues to operate while lifting the measuring probe. When the measuring probe is raised to the orifice, and the conductive probe 9 in the movable joint 1 leaves the mud surface and is exposed to the air, the lifting electromagnetic relay 26 automatically stops working due to the break in the circuit between the two probes. The fourth metal contact 20 and the fifth metal contact 21 separate, the working circuit of the winch motor is automatically disconnected, and the winch automatically stops lifting the measuring probe.
[0042] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. An automatic termination lifting device for a hole-forming quality inspection probe, characterized in that, Includes a movable connector (1), a multi-core cable (2), and a controller (3); The movable connector (1) includes a connector housing, a conductive probe (9), a pin (11), a first insulator (12), and a second insulator (14). The connector housing has water inlet and outlet holes (8) on its wall. A plug-in interface (13) is formed at the opening at the bottom of the connector housing. A fixing nut (10) is also installed on the outer wall of the opening at the bottom of the connector housing. The first insulator (12) and the second insulator (14) are installed on the inner wall of the connector housing. The conductive probe (9) is installed on the first insulator (12). One end of the multi-core cable (2) passes through the top of the connector housing and is installed on the first insulator (12). The pin (11) is installed on the second insulator (14) and its two ends in the length direction protrude from the second insulator (14). The conductive probe (9) and the pin (11) are electrically connected to the multi-core cable (2). The controller (3) includes a housing (31) and a lowering circuit, a lifting circuit and a driving circuit installed in the housing (31), which are electrically connected to a multi-core cable (2).
2. The automatic termination lifting device for the hole forming quality detection probe according to claim 1, characterized in that, The connector housing includes an upper housing (4), a middle housing (5), and a lower housing (6). The upper housing (4) and the middle housing (5) are threaded together, and the middle housing (5) and the lower housing (6) are threaded together. The middle housing (5) and the lower housing (6) are also sealed together by a rubber sealing ring (7).
3. The automatic termination lifting device for the hole forming quality detection probe according to claim 2, characterized in that, The wall of the middle housing (5) is provided with water inlet and outlet holes (8). The first insulator (12) is installed on the inner wall of the middle housing (5) by a rubber sealing ring (7), and the first insulator (12) is located below the water inlet and outlet holes (8).
4. The automatic termination lifting device for the hole forming quality detection probe according to claim 3, characterized in that, The bottom of the lower housing (6) is open, and a plug-in interface (13) is formed at the bottom opening of the lower housing (6). A rubber sealing ring (7) is also provided on the bottom outer wall of the plug-in interface (13). The fixing nut (10) is installed on the outer wall of the bottom opening of the lower housing (6), and the second insulator (14) is installed on the inner wall of the lower housing (6).
5. The automatic termination lifting device for the hole forming quality detection probe according to claim 4, characterized in that, The upper housing (4) is also provided with a cable fixing clip (15) on the top inner wall. One end of the cable (2) passes through the top inner wall of the upper housing (4) and the cable fixing clip (15) in sequence and is installed on the first insulator (12). A rubber sealing ring (7) is also provided between the cable (2) and the first insulator (12).
6. The automatic termination lifting device for the hole forming quality detection probe according to claim 5, characterized in that, The lowering circuit includes a lowering power supply wire interface (24), a lowering electromagnetic relay (27), and a lowering control button (30). The lowering control button (30) and the lowering electromagnetic relay (27) are connected in series and their two ends are electrically connected to the power supply through the lowering power supply wire interface (24). The lifting circuit includes a lifting power wire interface (23), a probe wire interface (28), a lifting electromagnetic relay (26), and a lifting control button (29). The probe wire interface (28), the lifting electromagnetic relay (26), and the lifting control button (29) are connected in series and then electrically connected to the power supply through the lifting power wire interface (23). The drive circuit includes a first contact (17), a second contact (18), a third contact (19), a fourth contact (20), a fifth contact (21), and a winch wire interface (22). The second contact (18) and the fourth contact (20) are mounted on an armature with a moving contact. The first contact (17) is mounted below the second contact (18). The first contact (17) and the second contact (18) are connected in series with the two ends of the lifting control button (29). The third contact (19) and the fifth contact (21) are mounted above and below the fourth contact (20). The third contact (19), the fifth contact (21), and the fourth contact (20) are electrically connected to the winch motor power supply circuit through the winch wire interface (22).
7. The automatic termination lifting device for the hole forming quality detection probe according to claim 6, characterized in that, The lowering control button (30) includes a lowering button panel, a lowering connecting rod, a lowering bridge metal contact (36), a lowering mounting shell, a lowering spring (37), and a lowering metal contact (35). The lowering button panel and the lowering bridge metal contact (36) are installed on the top and bottom of the lowering connecting rod. The lowering connecting rod is movably inserted into the top plate of the lowering mounting shell. The lowering spring (37) is sleeved on the lowering connecting rod, and its two ends abut against the bottom of the lowering button panel and the top of the lowering mounting shell, respectively. The lowering metal contact (35) is installed inside the lowering mounting shell and is located directly below the lowering bridge metal contact (36). The lifting control button (29) includes a lifting button panel, a lifting connecting rod, a lifting bridge metal contact (33), a lifting mounting shell, a lifting spring (32), and a lifting metal contact (34). The lifting button panel and the lifting bridge metal contact (33) are installed on the top and bottom of the lifting connecting rod. The lifting connecting rod is movably inserted into the top plate of the lifting mounting shell. The lifting spring (32) is sleeved on the lifting connecting rod and its two ends abut against the bottom of the lifting button panel and the top of the lifting mounting shell, respectively. The lifting metal contact (34) is installed inside the lifting mounting shell and is located directly below the lifting bridge metal contact (33).