In-hole protection device for tunnel advanced geological forecast detector

Abstract

The utility model provides an in-hole protection device for a tunnel advanced geological forecast detector, which relates to the technical field of detector protection and comprises a detector body, a plastic fixing seat is fixedly mounted on the surface of the detector body, and a sealing ring is sleeved on the surface of the plastic fixing seat. The surface of the sealing ring is sleeved with a steel sleeve, and one end of the plastic fixing seat is fixedly connected with a connecting rope. The utility model has the advantages that the detector is protected by adopting the steel sleeve, and one end of the detector penetrating into the hole is plugged by using the threaded steel cap, so that the detector is detected in a relatively closed environment, the data acquisition quality is ensured, the detector is protected, and the service life of the detector is prolonged. And through the winding structure arranged at the other end of the steel sleeve and the fixing structure of the detector, the detector can be repeatedly used when hole collapse does not occur, and if hole collapse occurs, the sensor can be taken out, so that the protection capability of the detector is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of detector protection, in particular to an in-hole protection device for a tunnel advanced geological prediction detector. Background Art

[0002] The main basis for tunnel construction is the design documents, but practice has proved that the design is often inconsistent with the actual situation, resulting in frequent disasters such as landslides, water and mud in the tunnel, which are extremely harmful to safe construction and seriously affect the quality of the project. Especially in recent years, with the rapid development of my country's economy and the advancement of tunnel technology, the construction of railway tunnels and highway tunnels has continued to penetrate into the previous "geological restricted areas", with more and more complex and long tunnels, and more and more complex geological problems. In order to ensure construction safety, the requirements for advanced geological forecasts of tunnels are also constantly increasing.

[0003] Geophones are often needed for advanced geological prediction of tunnels. However, existing geophones are arranged in boreholes inclined about 10° downward on the tunnel side wall. Hole collapse may occur during tunnel blasting and stress release, making it impossible to remove the geophones or causing them to be damaged. Utility Model Content

[0004] Therefore, the purpose of the utility model is to provide a hole protection device for a tunnel advanced geological prediction detector to solve the problems mentioned in the background technology and overcome the shortcomings of the prior art.

[0005] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the utility model provides an in-hole protection device for a tunnel advanced geological prediction detector, including a detector body, a plastic fixing seat is fixedly installed on the surface of the detector body, a sealing ring is sleeved on the surface of the plastic fixing seat, a steel casing is sleeved on the surface of the sealing ring, one end of the plastic fixing seat is fixedly connected to a connecting rope, one end of the connecting rope is fixedly installed with a wire wheel, both ends of the wire wheel are rotatably connected to a limit seat, the inside of the limit seat is rotatably connected to a rotating disk, and one end of the steel casing is fixedly installed with a threaded steel cap.

[0006] Preferably, any of the above solutions has a fixing groove matched with the detector body formed inside the plastic fixing seat, and the plastic fixing seat is located inside the steel casing.

[0007] The above technical solution is adopted: the detector body is fixedly supported by the plastic fixing seat, which is convenient for protecting and moving the detector body and is conducive to the disassembly and assembly of the detector.

[0008] Preferably, any of the above solutions has an outer diameter of the sealing ring that matches the inner diameter of the steel sleeve, and a width of the sealing ring that is smaller than a width of the plastic fixing seat.

[0009] The above technical solution is adopted: the steel casing and the plastic fixing seat are sealed and protected by a sealing ring, so that after the plastic fixing seat is installed, a cavity can be formed at one end of the steel casing, and the detector faces the cavity part to ensure the cleanliness of the detector.

[0010] Preferably, any of the above schemes is that one end of the steel sleeve is provided with a thread matched with the threaded steel cap, and the other end of the steel sleeve is provided with a slot matched with the limit seat.

[0011] The above technical solution is adopted: the diameter of the steel casing is φmm, a thread is set at one end of the steel casing to facilitate the connection and fixation of the threaded steel cap, and a card groove is set to facilitate the limiting of the limit seat.

[0012] Preferably, any of the above schemes has a limit column matched with the slot at one end of the limit seat, a storage groove matched with the wire wheel is provided inside the limit seat, and a disassembly plate fixedly mounted on the limit seat is provided on one side of the storage groove.

[0013] The above technical solution is adopted: the position of the limit seat is limited by inserting the limit column into the inside of the card slot, and the disassembly and assembly of the disassembly plate facilitates the operation of the inside of the storage slot, which facilitates the disassembly and assembly of the wire wheel. Clean water is poured into the interior of the steel casing from one end where the limit seat is installed as a coupling agent, and then mud coupling is used on the outside of the casing to seal the steel casing.

[0014] Preferably, any of the above schemes is that the rotating disk is fixedly mounted on one end of the wire wheel, and the rotating disk is rotatably connected to one end of the limiting seat.

[0015] By adopting the above technical solution, when taking out the geophone, the wire wheel can be rotated by the rotating disk, so that the wire wheel can reel in the connecting rope, and the connecting rope drives the plastic fixing seat to move, so as to facilitate taking out the geophone.

[0016] Preferably, any of the above schemes has a thread groove matched with the thread opened inside the threaded steel cap, and the threaded steel cap and the limit seat are respectively located on both sides of the steel sleeve.

[0017] The above technical solution is adopted: one end of the steel casing with a threaded steel cap is installed deep into the inside of the drilled hole, and the threaded steel cap seals one end of the steel casing.

[0018] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0019] 1. Use steel casing to protect the detector, and use a threaded steel cap to seal one end of the deep hole, so that the detector is in a relatively closed environment for detection. While ensuring the quality of data collection, the detector is protected. The winding structure set at the other end of the steel casing and the fixed structure of the detector can be reused when there is no hole collapse. If a hole collapse occurs, the sensor can be taken out, which effectively improves the protection capability of the detector.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 It is a structural schematic diagram according to an embodiment of the utility model;

[0023] Figure 2 It is a schematic diagram of an explosion structure according to an embodiment of the utility model;

[0024] Figure 3 It is a structural schematic diagram of a limit seat according to an embodiment of the utility model;

[0025] Figure 4 It is a schematic cross-sectional structure diagram of a limit seat according to an embodiment of the utility model;

[0026] Among them: 1-detector body, 2-plastic fixing seat, 3-sealing ring, 4-steel casing, 5-connecting rope, 6-wire wheel, 7-limiting seat, 8-rotating disk, 9-threaded steel cap, 10-card slot, 11-limiting column, 12-storage slot, 13-disassembly and assembly plate, 14-thread, 15-thread groove. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0028] like Figure 1-4As shown, an in-hole protection device for a tunnel advanced geological prediction detector according to an embodiment of the utility model comprises a detector body 1, a plastic fixing seat 2 is fixedly installed on the surface of the detector body 1, a sealing ring 3 is sleeved on the surface of the plastic fixing seat 2, a steel casing 4 is sleeved on the surface of the sealing ring 3, a connecting rope 5 is fixedly connected to one end of the plastic fixing seat 2, a wire wheel 6 is fixedly installed on one end of the connecting rope 5, both ends of the wire wheel 6 are rotatably connected to a limiting seat 7, a rotating disk 8 is rotatably connected inside the limiting seat 7, and a threaded steel cap 9 is fixedly installed on one end of the steel casing 4.

[0029] Preferably, any of the above solutions has a fixing groove matched with the detector body 1 formed inside the plastic fixing seat 2 , and the plastic fixing seat 2 is located inside the steel casing 4 .

[0030] The above technical solution is adopted: the detector body 1 is fixedly supported by the plastic fixing seat 2, which is convenient for protecting and moving the detector body 1 and is beneficial for disassembly and assembly of the detector.

[0031] Preferably, any of the above solutions has an outer diameter of the sealing ring 3 that matches an inner diameter of the steel sleeve 4 , and a width of the sealing ring 3 that is smaller than a width of the plastic fixing seat 2 .

[0032] The above technical solution is adopted: the steel sleeve 4 and the plastic fixing seat 2 are sealed and protected by the sealing ring 3, so that after the plastic fixing seat 2 is installed, a cavity can be formed at one end of the steel sleeve 4, so that the detector faces the cavity part to ensure the cleanliness of the detector.

[0033] Preferably, any of the above schemes is that one end of the steel sleeve 4 is provided with a thread 14 matched with the threaded steel cap 9 , and the other end of the steel sleeve 4 is provided with a slot 10 matched with the limit seat 7 .

[0034] The above technical solution is adopted: the diameter of the steel sleeve 4 is φ30 mm, a thread 14 is provided at one end of the steel sleeve 4 to facilitate connection and fixation with a threaded steel cap, and a slot 10 is provided to facilitate limiting the limit seat 7.

[0035] Preferably, any of the above schemes has a limit column 11 matched with the card slot 10 at one end of the limit seat 7, a storage groove 12 matched with the wire wheel 6 is opened inside the limit seat 7, and a disassembly plate 13 fixedly mounted on the limit seat 7 is provided on one side of the storage groove 12.

[0036] The above technical solution is adopted: the position of the limit seat 7 is limited by inserting the limit column 11 into the interior of the card slot 10, and the disassembly and assembly of the disassembly plate 13 facilitates the operation of the interior of the storage slot 12, and facilitates the disassembly and assembly of the wire wheel 6. Clean water is poured into the interior of the steel casing 4 from one end where the limit seat 7 is installed as a coupling agent, and then mud coupling is used outside the casing to seal the steel casing 4.

[0037] Preferably, any of the above schemes is that the rotating disk 8 is fixedly mounted on one end of the wire wheel 6 , and the rotating disk 8 is rotatably connected to one end of the limiting seat 7 .

[0038] By adopting the above technical solution, when taking out the geophone, the wire wheel 6 can be rotated by the rotating disk 8 to make the wire wheel 6 reel up the connecting rope 5, and the connecting rope 5 drives the plastic fixing seat 2 to move, so as to facilitate taking out the geophone.

[0039] Preferably, any of the above schemes has a thread groove 15 adapted to the thread 14 formed inside the threaded steel cap 9 , and the threaded steel cap 9 and the limit seat 7 are located on both sides of the steel sleeve 4 , respectively.

[0040] The above technical solution is adopted: one end of the steel casing 4 with the threaded steel cap 9 is installed deep into the inside of the drilled hole, and the threaded steel cap 9 blocks one end of the steel casing 4.

[0041] The utility model is a hole protection device for a tunnel advanced geological prediction detector, and its working principle is as follows:

[0042] Insert the plastic fixing seat 2 into the steel casing 4, fix the threaded steel cap 9 on one end of the steel casing 4, insert the threaded steel cap 9 into the borehole, pour clean water into the pipe, seal the outside of the pipe with mud, and rotate the rotating disk 8 to take out the detector during disassembly.

[0043] Compared with the prior art, the present invention has the following beneficial effects:

[0044] 1. The geophone is protected by a steel casing 4, and one end deep into the hole is sealed with a threaded steel cap 9, so that the geophone is placed in a relatively closed environment for detection. While ensuring the quality of data collection, the geophone is protected. The winding structure set at the other end of the steel casing 4 and the fixing structure of the geophone can be reused when no hole collapse occurs. If a hole collapse occurs, the sensor can be taken out, which effectively improves the protection capability of the geophone.

Claims

1. A hole protection device for a tunnel advanced geological prediction detector, characterized in that: The invention comprises a detector body (1), a plastic fixing seat (2) being fixedly mounted on the surface of the detector body (1), a sealing ring (3) being sleeved on the surface of the plastic fixing seat (2), a steel sleeve (4) being sleeved on the surface of the sealing ring (3), a connecting rope (5) being fixedly connected to one end of the plastic fixing seat (2), a wire wheel (6) being fixedly mounted on one end of the connecting rope (5), two ends of the wire wheel (6) being rotatably connected to a limit seat (7), a rotating disk (8) being rotatably connected inside the limit seat (7), and a threaded steel cap (9) being fixedly mounted on one end of the steel sleeve (4).

2. The hole protection device for a tunnel advanced geological prediction detector according to claim 1, characterized in that: A fixing groove matching the detector body (1) is provided inside the plastic fixing seat (2), and the plastic fixing seat (2) is located inside the steel sleeve (4).

3. The hole protection device for a tunnel advanced geological prediction detector according to claim 2, characterized in that: The outer diameter of the sealing ring (3) is matched to the inner diameter of the steel sleeve (4), and the width of the sealing ring (3) is smaller than the width of the plastic fixing seat (2).

4. The hole protection device for a tunnel advanced geological prediction detector according to claim 3, characterized in that: One end of the steel sleeve (4) is provided with a thread (14) adapted to fit the threaded steel cap (9), and the other end of the steel sleeve (4) is provided with a slot (10) adapted to fit the limit seat (7).

5. The hole protection device for a tunnel advanced geological prediction detector according to claim 4, characterized in that: A limiting column (11) matched with the clamping slot (10) is arranged at one end of the limiting seat (7), a receiving slot (12) matched with the wire wheel (6) is provided inside the limiting seat (7), and a disassembly plate (13) fixedly mounted on the limiting seat (7) is arranged on one side of the receiving slot (12).

6. The hole protection device for a tunnel advanced geological prediction detector according to claim 5, characterized in that: The rotating disk (8) is fixedly mounted on one end of the wire wheel (6), and the rotating disk (8) is rotatably connected to one end of the limiting seat (7).

7. The hole protection device for a tunnel advanced geological prediction detector according to claim 6, characterized in that: The threaded steel cap (9) has a thread groove (15) adapted to the thread (14) formed inside, and the threaded steel cap (9) and the limit seat (7) are respectively located on two sides of the steel sleeve (4).

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