Seismic wave detector hole wall quick dry coupling device

Abstract

The utility model relates to the technical field of physical detection, and discloses a seismic wave detector hole wall quick dry coupling device which comprises a detection table, a detector arranged on the detection table, a clamping ring and an air bag. The detector is arranged in the detection table along the axial direction; the clamping ring is detachably arranged at the left end of the detection table in the axial direction. The air bag is arranged at the right end of the detection table in the axial direction, the air bag generates transverse air control supporting force to extrude the detector in the direction close to the clamping ring, and the detector is clamped and fixed through the clamping ring and the air bag. And the detection table, the detector, the clamping ring and the air bag are coaxially arranged. It is ensured that the transverse air control supporting force generated by the air bag can accurately act in the direction of the central axis of the detector, and therefore the problem that the supporting force and the central axis of the detector cannot coincide is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of physical detection, in particular to a quick dry coupling device for a seismic wave detector hole wall. Background Art

[0002] In the fields of water conservancy, railways, transportation and other engineering, the borehole seismic wave velocity test is mainly used to calculate the elastic parameters of the rock mass in the borehole, so as to provide scientific data services for the rock mass quality evaluation and the detection of surrounding rock defects. During the test, the detector is generally required to be arranged inside the borehole and coupled with the borehole wall rock mass. Whether the detector can be stably and well coupled with the borehole wall rock mass is the main factor affecting the test accuracy. At present, the commonly used effective means mainly include two types of electric control and gas control support coupling technology. The current electric control support coupling technology has a high failure rate during the borehole test with groundwater due to its poor insulation effect. Relatively speaking, the gas control support coupling technology has a stronger adaptability to various complex borehole environments, but the existing gas control support coupling technology fails to achieve the coincidence of the support force with the center axis of the detector, and the support coupling effect is poor. Therefore, the gas control support coupling technology is studied to achieve the coincidence of the lateral gas control support force with the center axis of the detector, which can effectively improve the coupling effect between the detector and the borehole wall rock mass, thereby improving the accuracy of the rock mass seismic wave velocity test. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a seismic wave detector hole wall rapid dry coupling device, which effectively improves the accuracy of seismic wave velocity testing based on the coincidence of the lateral gas-controlled supporting force and the lateral central axis of the detector.

[0004] The utility model provides a seismic wave detector hole wall quick dry coupling device, comprising a detection platform, a detector, a clamp ring, and an air bag arranged on the detection platform;

[0005] The detector is arranged inside the detection platform along the axial direction;

[0006] The clamping ring is detachably arranged at the left end of the testing platform along the axial direction;

[0007] The airbag is arranged at the right end of the test platform along the axial direction, and the airbag generates a transverse air-controlled supporting force to squeeze the detector toward the clamping ring, and the clamping ring and the airbag clamp and fix the detector;

[0008] The testing platform, the detector, the clamping ring and the air bag are coaxially arranged.

[0009] Furthermore, a positioning groove is provided at the left end of the detection platform, and the positioning groove includes a positioning area and a clamping area;

[0010] The detector is arranged in the positioning area along the axial direction; and the clamping ring is arranged in the clamping area along the axial direction.

[0011] Furthermore, a threaded structure is provided between the retaining area and the retaining ring, and the retaining ring is detachably provided on the retaining area via the threaded structure.

[0012] Furthermore, a mounting groove is provided at the right end of the detection platform, the mounting groove is coaxially arranged with the positioning groove, and the airbag is arranged in the mounting groove.

[0013] Furthermore, it also includes an air cylinder arranged on the airbag, which is used to inflate the airbag; the airbag inflation process generates a lateral air-controlled supporting force, which continuously squeezes the detector in the positioning area through the lateral air-controlled supporting force, and fixes the detector between the clamping ring and the airbag.

[0014] Furthermore, the airbag expands outwards during the inflation process and fits with the hole wall through the lateral air-controlled supporting force to achieve dry coupling.

[0015] Furthermore, it also includes an air guide tube arranged on the airbag, one end of the air guide tube is sealedly connected to the air inlet of the airbag, and the other end of the air guide tube is connected to the air outlet of the air cylinder.

[0016] Furthermore, it also includes a push rod on the detection platform, which is used to drive the detection platform to move into the hole to realize seismic wave detection.

[0017] Furthermore, an air hole is provided at the bottom of the installation groove, and the air guide pipe passes through the air hole and is connected to the air cylinder.

[0018] Furthermore, the positioning groove is provided with a U-shaped groove from left to right, and the cable of the detector passes through the U-shaped groove and is connected to an external power supply.

[0019] The embodiments of the present utility model have the following technical effects:

[0020] The utility model ensures that the lateral gas-controlled supporting force generated by the airbag can act accurately along the central axis of the detector by designing the testing platform, the detector, the clamping ring and the airbag to be coaxially arranged, thereby effectively solving the problem that the supporting force and the central axis of the detector fail to coincide.

[0021] Since the supporting force coincides with the central axis of the geophone, a stable dry coupling state is formed between the geophone and the rock mass of the hole wall, which significantly improves the accuracy of seismic wave velocity testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a longitudinal cross-sectional schematic diagram of a seismic wave detector hole wall rapid dry coupling device provided by an embodiment of the utility model;

[0024] Figure 2 It is a structural schematic diagram of a seismic wave geophone hole wall rapid dry coupling device provided by an embodiment of the utility model;

[0025] Figure 3 It is a schematic diagram of a clamping ring structure of a seismic wave detector hole wall rapid dry coupling device provided by an embodiment of the utility model;

[0026] Figure 4 It is a schematic cross-sectional view of a seismic wave detector hole wall rapid dry coupling device provided by an embodiment of the utility model.

[0027] Reference numerals

[0028] 1-testing table, 2-clamping ring, 3-air bag, 4-push rod, 5-air cylinder, 6-air guide tube, 7-positioning groove, 8-installation groove, 9-U-shaped groove, 10-air hole, 11-detector. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0030] See also Figure 1-Figure 4 This embodiment provides a seismic wave detector hole wall rapid dry coupling device, and its structural design is intended to solve the problem of poor support coupling effect caused by the failure of the support force to coincide with the central axis of the detector 11 in the prior art. The device includes a detection platform 1, a detector 11, a clamping ring 2, and an air bag 3 arranged on the detection platform 1; they are designed to be coaxially arranged to ensure that the detector 11 is stably and efficiently coupled during the detection process.

[0031] The detector 11 is arranged inside the test platform 1 along the axial direction; the retaining ring 2 is detachably arranged at the left end of the test platform 1 along the axial direction; the airbag 3 is arranged at the right end of the test platform 1 along the axial direction, and the airbag 3 generates a lateral gas-controlled supporting force to squeeze the detector 11 in the direction close to the retaining ring 2, and the retaining ring 2 and the airbag 3 clamp and fix the detector 11; the test platform 1, the detector 11, the retaining ring 2, and the airbag 3 are coaxially arranged.

[0032] By designing the test platform 1, detector 11, retaining ring 2 and airbag 3 to be coaxially arranged, it is ensured that the lateral air-controlled supporting force generated by the airbag 3 can act accurately along the central axis direction of the detector 11, thereby effectively solving the problem of the support force not coinciding with the central axis of the detector 11.

[0033] The lateral gas-controlled supporting force generated by the airbag 3 squeezes the detector 11 toward the clamp ring 2, so that the detector 11 can be firmly clamped and fixed by the clamp ring 2 and the airbag 3, thereby improving the coupling effect between the detector 11 and the hole wall rock mass.

[0034] The detector 11 is axially arranged inside the test bench 1, and the retaining ring 2 is detachably arranged at the left end of the test bench 1 along the axial direction. This coaxial arrangement ensures that the detector 11 will not shake or deviate during the test, thereby improving the stability during the test.

[0035] Since the supporting force coincides with the central axis of the geophone 11, a stable dry coupling state is formed between the geophone 11 and the hole wall rock mass, thereby significantly improving the accuracy of the seismic wave velocity test.

[0036] Preferably, the testing platform 1 is a cube structure, and the length, width and height of the testing platform 1 are all set to 0.06m.

[0037] In this embodiment, a positioning groove 7 is provided at the left end of the detection platform 1, and the positioning groove 7 includes a positioning area and a clamping area; the detector 11 is arranged in the positioning area along the axial direction; the clamping ring 2 is arranged in the clamping area along the axial direction. A threaded structure is provided between the clamping area and the clamping ring 2, and the clamping ring 2 is detachably provided with the clamping area through the threaded structure. In the prior art, the outer shape of the detector 11 is a cylinder. In this embodiment, the positioning groove 7 is set as a columnar groove structure so as to fit with the detector 11.

[0038] Furthermore, an internal thread is provided on the inner wall of the clamping area, and an external thread is provided on the outer wall of the clamping ring 2. The clamping ring 2 is detachably installed in the clamping area through the threaded connection between the internal thread and the external thread. Furthermore, the detector 11 can be transversely fixed inside the positioning groove 7 through the clamping ring 2, and the detector 11 and the positioning groove 7 have the same transverse central axis.

[0039] In this embodiment, a mounting groove 8 is disposed at the right end of the detection platform 1 , and the mounting groove 8 is coaxially disposed with the positioning groove 7 , and has the same central axis and diameter. The airbag 3 is disposed in the mounting groove 8 .

[0040] This embodiment further includes an air cylinder 5 disposed on the airbag 3, which is used to inflate the airbag 3; the airbag 3 generates a lateral air-controlled support force during the inflation process, which continuously squeezes the detector 11 in the positioning area and fixes the detector 11 between the clamp ring 2 and the airbag 3. The airbag 3 expands outward during the inflation process and fits with the hole wall through the lateral air-controlled support force to achieve dry coupling.

[0041] This embodiment further includes an air guide tube 6 disposed on the airbag 3 , one end of the air guide tube 6 being sealedly connected to the air inlet of the airbag 3 , and the other end of the air guide tube 6 being connected to the air outlet of the air cylinder 5 .

[0042] This embodiment also includes a push rod 4 on the detection platform 1, which is used to drive the detection platform 1 to move into the hole to realize seismic wave detection. In another embodiment, the push rod 4 is composed of support rods of at least three sizes, namely 3.0m, 5.0m, and 8.0m, and adjacent support rods can be spliced ​​and connected. In the specific use process, the support rods are assembled according to the hole depth to extend the length of the push rod 4.

[0043] In another embodiment, the bottom of the mounting groove 8 is provided with an air hole 10, and the air guide tube 6 passes through the air hole 10 to connect with the air cylinder 5. The positioning groove 7 is provided with a U-shaped groove 9 from left to right, and the cable of the detector 11 passes through the U-shaped groove 9 to connect with the external power supply.

[0044] This embodiment is simple to operate, low in cost, and reusable. It is suitable for seismic wave velocity testing of borehole wall rock masses with different inclination angles. The detector 11 and the borehole wall rock mass can be in a hard contact and dry coupling state, and the lateral gas-controlled support force can be coincident with the lateral center axis of the detector 11, thereby effectively improving the coupling effect, and then improving the accuracy of the seismic wave velocity test. It can be used for tasks including foundation surface rock mass quality testing, tunnel surrounding rock quality evaluation, tunnel defect detection, etc.

[0045] The working principle of this embodiment is as follows: first, the clamp ring 2 is taken out from the positioning groove 7, and then the detector 11 is placed horizontally into the positioning groove 7, and the cable of the detector 11 is led out from the U-shaped hole. The clamp ring 2 is used to initially position the detector 11, and then the push rod 4 is used to send the detector 11 into the hole to test the depth position. Finally, the air cylinder 5 is used to inflate the air bag 3 until the lateral expansion pressure of the air bag 3 makes the detector 11 tightly coupled with the hole wall rock mass, and the push rod 4 is dragged to check whether the coupling is stable, and then the seismic wave velocity test can be carried out.

[0046] It should be noted that the terms used in the present invention are only for describing specific embodiments, rather than limiting the scope of the present application. As shown in the present utility model specification, unless the context clearly indicates an exception, the words "one", "a", "a kind of" and / or "the" do not specifically refer to the singular, but may also include the plural. The terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method or device. In the absence of further restrictions, the elements defined by the sentence "include one..." do not exclude the presence of other identical elements in the process, method or device including the elements.

[0047] It should also be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the technical solutions of the embodiments of the utility model.

Claims

1. A seismic wave detector hole wall rapid dry coupling device, characterized in that: It comprises a testing platform (1), a detector (11), a clamping ring (2), and an air bag (3) arranged on the testing platform (1); The detector (11) is arranged inside the detection platform (1) along the axial direction; The clamping ring (2) is detachably arranged at the left end of the detection platform (1) along the axial direction; The airbag (3) is arranged at the right end of the detection platform (1) along the axial direction, and the airbag (3) generates a lateral gas-controlled supporting force to press the detector (11) in a direction close to the clamping ring (2), and the clamping ring (2) and the airbag (3) clamp and fix the detector (11); The detection platform (1), the detector (11), the clamping ring (2), and the airbag (3) are coaxially arranged.

2. A seismic wave detector hole wall rapid dry coupling device according to claim 1, characterized in that: A positioning groove (7) is provided at the left end of the detection platform (1), and the positioning groove (7) comprises a positioning area and a clamping area; The detector (11) is arranged in a positioning area along the axial direction; and the clamping ring (2) is arranged in a clamping area along the axial direction.

3. A seismic wave detector hole wall rapid dry coupling device according to claim 2, characterized in that: A threaded structure is provided between the clamping area and the clamping ring (2), and the clamping ring (2) is detachably arranged in the clamping area via the threaded structure.

4. The seismic wave detector hole wall rapid dry coupling device according to claim 1, characterized in that: The right end of the detection platform (1) is provided with a mounting groove (8), the mounting groove (8) and the positioning groove (7) are coaxially arranged, and the airbag (3) is arranged in the mounting groove (8).

5. The seismic wave detector hole wall rapid dry coupling device according to claim 1, characterized in that: It also includes an air cylinder (5) disposed on the airbag (3) and used to inflate the airbag (3); the airbag (3) generates a lateral air-controlled support force during the inflation process, and the detector (11) in the positioning area is continuously squeezed by the lateral air-controlled support force, so that the detector (11) is fixed between the clamping ring (2) and the airbag (3).

6. A seismic wave detector hole wall rapid dry coupling device according to claim 5, characterized in that: The airbag (3) expands outwards during the inflation process and fits with the hole wall through a lateral air-controlled supporting force, thereby achieving dry coupling.

7. The seismic wave detector hole wall rapid dry coupling device according to claim 5, characterized in that: It also includes an air guide tube (6) arranged on the air bag (3), one end of the air guide tube (6) being sealingly connected to the air inlet of the air bag (3), and the other end of the air guide tube (6) being connected to the air outlet of the air cylinder (5).

8. The seismic wave detector hole wall rapid dry coupling device according to claim 1, characterized in that: It also includes a push rod (4) on the detection platform (1), which is used to drive the detection platform (1) to move into the hole to realize seismic wave detection.

9. The seismic wave detector hole wall rapid dry coupling device according to claim 7, characterized in that: An air hole (10) is provided at the bottom of the mounting groove (8), and the air guide tube (6) passes through the air hole (10) and is connected to the air cylinder (5).

10. The seismic wave detector hole wall rapid dry coupling device according to claim 4, characterized in that: The positioning groove (7) is provided with a U-shaped groove (9) from left to right, and the cable of the detector (11) passes through the U-shaped groove (9) and is connected to an external power supply.

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