Integral protection device for a wave velocity test hanging probe

Abstract

This utility model discloses an integrated protective device for a suspended wave velocity testing probe, relating to the field of seismic safety evaluation technology. It includes a main steel wire rope, an upper protective assembly, and a lower protective assembly. The upper protective assembly supports the electromagnetic excitation source via a set of circular support plates and the protective steel wire rope, and is connected to the main steel wire rope. The lower protective assembly consists of multiple sets of circular support plates fitted onto the damper and detector on the upper and lower sides of the probe's lower part, and is connected to the upper assembly via the protective steel wire rope. A predetermined gap is maintained between all protective support plates and probe components in their natural state. During normal operation, the plates do not contact the probe, ensuring interference-free testing. In the event of a borehole collapse and probe jamming, pulling the main steel wire rope eliminates the gap, and the protective support plates quickly support all probe components, forming a continuous force transmission chain from the main steel wire rope to the bottom of the probe, thereby rescuing the entire probe assembly from the borehole, effectively preventing equipment loss and damage.

Description

Technical Field

[0001] This utility model relates to the field of earthquake safety evaluation technology, specifically an overall protective device for a suspended probe for wave velocity testing. Background Technology

[0002] In wave velocity testing for seismic safety assessment, the wave velocity detector is the core equipment. It typically consists of an electromagnetic excitation source, a damper, and a detector connected sequentially from top to bottom, and is lowered into the test hole via a dedicated cable and an internal steel wire rope. However, existing protective measures have significant shortcomings and are insufficient to meet the testing requirements of complex soil layers.

[0003] The wave velocity detector comes with only one built-in 2mm diameter steel wire rope, which connects to a dedicated cable. This design is only suitable for normal test holes. In areas prone to hole collapse, such as deep, fluid silty soil or sandy soil, the tensile strength of the built-in steel wire rope is limited. Once a hole collapses, the probe is easily stuck and cannot be rescued, leading to equipment loss, project delays, and economic losses. Therefore, those skilled in the art have proposed an integrated protective device for the suspended wave velocity test probe to address the problems mentioned in the background. Utility Model Content

[0004] The purpose of this invention is to provide an overall protective device for a suspended probe for wave velocity testing, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An overall protective device for a suspended probe for wave velocity testing includes:

[0007] The main wire rope has a diameter of 8mm;

[0008] The upper protective assembly includes an upper circular ring support group and several upper protective steel wire ropes. The upper circular ring support group is sleeved around the outer periphery of the electromagnetic excitation source. One end of the upper protective steel wire rope is connected to the upper circular ring support group, and the other end is connected to the lower end of the main steel wire rope. The upper protective assembly is used to protect the electromagnetic excitation source and connect to the lower protective assembly. A fixed gap is reserved between the upper circular ring support group and the electromagnetic excitation source. The diameter of the upper protective steel wire rope is 5mm.

[0009] The lower protective assembly includes a lower ring support group and several lower protective steel wire ropes. Each ring support of the lower ring support group is respectively sleeved on the upper and lower sides of the damper and the detector. The upper end of the lower protective steel wire rope is connected to the upper ring support group, and the lower end of the lower protective steel wire rope passes through each ring support of the lower ring support group in sequence and is then fixed. A fixed gap is reserved between the lower ring support group and the damper and the detector. The diameter of the lower protective steel wire rope is 3mm.

[0010] As a further embodiment of this utility model: the upper ring support plate group is connected to the main steel wire rope by several upper protective steel wire ropes, and the main steel wire rope and the upper protective steel wire rope are connected by a nut spring buckle.

[0011] As a further embodiment of this utility model: the upper circular support plate group includes a first circular support plate and two second circular support plates. The opening angle of the first circular support plate is 280° and the opening angle of the second circular support plate is 240°. The first circular support plate is disposed on the upper side of the electromagnetic excitation source, and the two sets of second circular support plates are disposed on the lower side of the electromagnetic excitation source with their openings facing each other. The upper protective steel wire rope is sequentially crisscrossed through the through holes of the first and second circular support plates and fixed by a U-shaped steel wire rope lock.

[0012] As a further embodiment of this utility model: the second circular ring support group includes seven third circular ring supports and one fourth circular ring support. The third circular ring supports are open rings with an opening angle of 280°. The third circular ring supports are disposed on the upper and lower sides of the two sets of dampers, on the upper and lower sides of the upper detector, and on the upper side of the bottom detector. The fourth circular ring support is a closed ring and is disposed at the bottom of the lowest detector. The lower protective steel wire rope passes through the third and fourth circular ring supports in sequence.

[0013] As a further improvement of this utility model, the lower protective component also includes a fixing and tightening buckle, which is sleeved on the lower protective steel wire rope and located on the outside of the third circular ring support.

[0014] As a further improvement of this utility model, the lower end of the lower protective steel wire rope is fixedly connected by a U-shaped steel wire rope lock.

[0015] Compared with existing technologies, the advantages of this invention are: This device extends the protection range to cover all dampers and detectors, achieving full-range, overall protection for the probe. Furthermore, through a cleverly designed quantitative gap, it perfectly resolves the contradiction between protection and testing performance: zero interference during normal operation and immediate effectiveness during rescue operations. Moreover, its robust structure and clear, rational force transmission path effectively address borehole collapse accidents in complex geological formations, significantly reducing equipment loss risks and maintenance costs. The device uses standardized component connections, making assembly and disassembly convenient, connections reliable, and easy to implement and maintain on-site. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall protective device for a suspended probe used for wave velocity testing.

[0017] Figure 2 In an overall protective device for a suspended probe for wave velocity testing Figure 1 Enlarged view of part A.

[0018] Figure 3 In an overall protective device for a suspended probe for wave velocity testing Figure 1 Enlarged view of part B.

[0019] Figure 4 In an overall protective device for a suspended probe for wave velocity testing Figure 1 Enlarged view of part C.

[0020] Figure 5 In an overall protective device for a suspended probe for wave velocity testing Figure 1 Enlarged view of part D.

[0021] Figure 6 This is a top view of the circular support plate in the overall protective device of a suspended probe for wave velocity testing.

[0022] In the diagram: 1. Main wire rope; 2. Upper protective assembly; 201. Upper protective wire rope; 202. First circular ring support; 203. Second circular ring support; 3. Lower protective assembly; 301. Lower protective wire rope; 302. Fixing and tightening buckle; 303. Third circular ring support; 304. Fourth circular ring support; 4. Nut spring buckle; 5. U-shaped wire rope lock. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not 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. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0025] 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] Please see Figure 1-6 An overall protective device for a suspended probe for wave velocity testing, comprising:

[0028] Main wire rope 1, the diameter of which is 8mm;

[0029] The upper protective component 2 includes an upper circular ring support group and several upper protective steel wire ropes 201. The upper circular ring support group is sleeved on the outer periphery of the electromagnetic excitation source. One end of the upper protective steel wire rope 201 is connected to the upper circular ring support group, and the other end is connected to the lower end of the main steel wire rope 1. The upper protective component 2 is used to protect the electromagnetic excitation source and connect to the lower protective component 3. A fixed gap is reserved between the upper circular ring support group and the electromagnetic excitation source. The diameter of the upper protective steel wire rope 201 is 5mm.

[0030] The lower protective assembly 3 includes a lower circular ring support group and several lower protective steel wire ropes 301. Each circular ring support of the lower circular ring support group is respectively sleeved on the upper and lower sides of the damper and the detector. The upper end of the lower protective steel wire rope 301 is connected to the upper circular ring support group, and the lower end of the lower protective steel wire rope 301 passes through each circular ring support of the lower circular ring support group in sequence and is then fixed. A fixed gap is reserved between the lower circular ring support group and the damper and the detector. The diameter of the lower protective steel wire rope 301 is 3mm.

[0031] The upper circular support plate assembly is connected to the main steel wire rope 1 by several upper protective steel wire ropes 201. The main steel wire rope 1 and the upper protective steel wire rope 201 are connected by a nut spring buckle 4.

[0032] The upper circular support plate group includes a first circular support plate 202 and two second circular support plates 203. The opening angle of the first circular support plate 202 is 280° and the opening angle of the second circular support plate 203 is 240°. The first circular support plate 202 is disposed on the upper side of the electromagnetic excitation source, and the two sets of second circular support plates 203 are disposed on the lower side of the electromagnetic excitation source with their openings facing each other. The upper protective steel wire rope 201 is sequentially crisscrossed through the through holes of the first circular support plate 202 and the second circular support plate 203 and fixed by a U-shaped steel wire rope lock 5.

[0033] The second annular support plate group 203 includes seven third annular support plates 303 and one fourth annular support plate 304. The third annular support plates 303 are open annular plates with an opening angle of 280°. The third annular support plates 303 are arranged on the upper and lower sides of the two sets of dampers, on the upper and lower sides of the upper detector, and on the upper side of the bottom detector. The fourth annular support plate 304 is a closed annular plate and is arranged at the bottom of the lowest detector. The lower protective steel wire rope 301 passes through the third annular support plates 303 and the fourth annular support plates 304 in sequence.

[0034] The lower protective component 3 also includes a fixing buckle 302, which is sleeved on the lower protective wire rope 301 and located on the outside of the third circular support plate 303.

[0035] The lower end of the lower protective steel wire rope 301 is fixedly connected by a U-shaped steel wire rope lock 5.

[0036] The assembled protective device is connected to the wave velocity probe, and the probe is smoothly lowered to the designated depth in the test hole using the main steel wire rope 1. The upper circular support plate assembly is separated from the electromagnetic excitation source, and the lower circular support plate assembly is separated from the damper and detector by a fixed gap. The support plates do not contact the equipment, thus preventing interference with the vibration transmission of the electromagnetic excitation source, the damping effect of the damper, and the signal acquisition of the detector, ensuring the accuracy of the wave velocity test data.

[0037] When the soil collapses inside the borehole, causing the probe to become stuck, the main steel wire rope 1 is pulled upwards. The tension is transmitted sequentially through the main steel wire rope 1 to the upper protective component 2 and then to the lower protective component 3. Under tension, the upper circular support plate assembly adheres to the electromagnetic excitation source, forming a lifting force on the upper equipment and preventing the electromagnetic excitation source from breaking off from the equipment below. Simultaneously, the tension of the upper protective component 2 is transmitted through the second circular support plate 203 to the lower protective steel wire rope 301, causing the lower circular support plate assembly to adhere to the damper and detector, completely eliminating the quantitative gap, and the support plates form a lifting force on the lower equipment. Finally, the tension is evenly distributed across all components of the probe through the support plates, lifting the entire probe away from the collapsed borehole area and preventing equipment breakage or loss.

[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0039] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An overall protective device for a suspended wave velocity testing probe, the probe comprising, from top to bottom, an electromagnetic excitation source, two sets of dampers, and two sets of detectors, characterized in that, include: The main wire rope has a diameter of 8mm; The upper protective assembly includes an upper circular ring support group and several upper protective steel wire ropes. The upper circular ring support group is sleeved around the outer periphery of the electromagnetic excitation source. One end of the upper protective steel wire rope is connected to the upper circular ring support group, and the other end is connected to the lower end of the main steel wire rope. The upper protective assembly is used to protect the electromagnetic excitation source and connect to the lower protective assembly. A fixed gap is reserved between the upper circular ring support group and the electromagnetic excitation source. The diameter of the upper protective steel wire rope is 5mm. The lower protective assembly includes a lower ring support group and several lower protective steel wire ropes. Each ring support of the lower ring support group is respectively sleeved on the upper and lower sides of the damper and the detector. The upper end of the lower protective steel wire rope is connected to the upper ring support group, and the lower end of the lower protective steel wire rope passes through each ring support of the lower ring support group in sequence and is then fixed. A fixed gap is reserved between the lower ring support group and the damper and the detector. The diameter of the lower protective steel wire rope is 3mm.

2. The overall protection device for a wave velocity test suspension type probe according to claim 1, characterized by The upper circular support plate assembly is connected to the main steel wire rope by several upper protective steel wire ropes, and the main steel wire rope and the upper protective steel wire rope are connected by a nut spring buckle.

3. The overall protection device for a wave velocity test suspension type probe according to claim 1, characterized by, The upper circular support plate group includes one first circular support plate and two second circular support plates. The opening angle of the first circular support plate is 280° and the opening angle of the second circular support plate is 240°. The first circular support plate is set on the upper side of the electromagnetic excitation source, and the two sets of second circular support plates are set on the lower side of the electromagnetic excitation source with their openings facing each other. The upper protective steel wire rope is sequentially crisscrossed through the through holes of the first and second circular support plates and fixed by a U-shaped steel wire rope lock.

4. The overall protection device for a wave velocity test suspension type probe according to claim 3, characterized by The second annular support plate group includes seven third annular support plates and one fourth annular support plate. The third annular support plates are open annular plates with an opening angle of 280°. The third annular support plates are arranged on the upper and lower sides of the two sets of dampers, on the upper and lower sides of the upper detector, and on the upper side of the bottom detector. The fourth annular support plate is a closed annular plate and is arranged at the bottom of the lowest detector. The lower protective steel wire rope passes through the third annular support plates and the fourth annular support plates in sequence.

5. The overall protection device for a wave velocity test suspension type probe according to claim 1, characterized by The lower protective assembly also includes a fixing and tightening buckle, which is sleeved on the lower protective steel wire rope and located on the outside of the third circular ring support.

6. The overall protection device for a wave velocity test hanging probe according to claim 1, characterized in that, The lower end of the lower protective steel wire rope is fixedly connected by a U-shaped steel wire rope lock.

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