Waterproof protection device for roadway bottom plate drilling television probe

Abstract

The utility model relates to the technical field of waterproof protection of borehole television probes, and discloses a waterproof protection device of a roadway bottom plate borehole television probe, which comprises a transparent outer cylinder and a transparent inner cylinder, the transparent inner cylinder is connected in the transparent outer cylinder in a sliding manner, and the transparent inner cylinder comprises a cylinder body and a waterproof rear cover which are connected with the inner wall of the transparent outer cylinder in a sliding manner; the waterproof rear cover is in threaded connection with the barrel body, a pipe notch and a wire notch are formed in the upper end face of the waterproof rear cover, and waterproof rubber soft plug sleeves are inserted into the pipe notch and the wire notch; a certain section of drill hole is separated through the water filling plugging device, water in the section of drill hole is pumped away, the drill hole television probe is installed in the transparent inner cylinder, the transparent inner cylinder slides in the transparent outer cylinder, and therefore detection of the rock stratum crushing range of the section of drill hole is achieved, and the device is light in design, can move freely in the drill hole and is convenient to use. Full-length detection of the drill hole is achieved, the waterproofness of the drill hole television probe is improved, the detection sight is not blocked by sewage, and the clarity of detection records is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of waterproof protection for drilling TV probes, in particular to a waterproof protection device for drilling TV probes on a tunnel bottom plate. Background Art

[0002] Borehole TV can reveal the state of surrounding rock in underground projects, infer the distribution of overburden occurrence, crack expansion, deformation development of surrounding rock and loose areas, etc. It is widely used in the early warning and forecast of underground engineering disasters such as coal mine roof delamination and collapse, underground water inrush, and failure of tunnel support, parameter design of anchor support, surrounding rock grouting reinforcement, tunnel repair, construction quality inspection, and support scheme evaluation and analysis, etc. It provides real and effective technical support for mine pressure and geotechnical engineering.

[0003] The following problems may occur in the actual application of drilling TV:

[0004] When inspecting the rock formation of the tunnel floor, there may be water in the tunnel floor drill hole, and the water in the bottom drill hole cannot be removed by pumping. At this time, underwater detection is required to inspect the surrounding rock of the bottom plate, but the waterproof performance of the camera of the current rock formation detection recorder is poor, and the bottom plate is prone to turbidity due to water. Simply increasing the waterproof performance of the rock formation detection recorder cannot clearly see the surrounding rock of the bottom plate drill hole. Therefore, a waterproof protection device for the tunnel floor drilling TV probe is proposed. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a tunnel bottom plate drilling TV probe waterproof protection device, which enables the drilling TV probe to detect the tunnel under waterproof protection and ensures the clarity of the detection record.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a waterproof protection device for a tunnel floor drilling TV probe, comprising a transparent outer cylinder and a transparent inner cylinder, the transparent inner cylinder is slidably connected in the transparent outer cylinder, the transparent inner cylinder comprises a cylinder body and a waterproof back cover slidably connected to the inner wall of the transparent outer cylinder, the waterproof back cover is threadedly connected to the cylinder body, the upper end surface of the waterproof back cover is provided with a pipe slot and a wire slot, waterproof rubber soft plug sleeves are inserted in the pipe slot and the wire slot, water-filled plugs are installed on the outer walls of both ends of the transparent outer cylinder, a first water extraction pipe and a water injection pipe are penetrated through the upper end surface of the transparent outer cylinder, the lower end of the first water extraction pipe is fixedly connected to a water extraction port penetrated to the outside of the transparent outer cylinder, the water extraction port is located between the two water-filled plugs, the outer wall of the water injection pipe is fixedly connected to two water injection hoses penetrated to the outside of the transparent outer cylinder, and the other ends of the two water injection hoses are respectively fixedly connected to the two water-filled plugs.

[0007] Preferably, the inner wall of the transparent outer cylinder is provided with two grooves, the cylinder body of the transparent inner cylinder and the outer wall of the waterproof rear cover are both fixedly connected with two convex strips, the convex strips and the grooves are engaged with each other, and the convex strips are slidably connected to the inner wall of the grooves.

[0008] Preferably, limiting grooves are provided on both sides of the inner wall of the groove, the length of the limiting grooves is smaller than the length of the groove, the ends of the convex strips located on the outer wall of the lower end of the cylinder and the outer wall of the upper end of the waterproof back cover are fixedly connected with blocks, and the blocks located on the outer wall of the cylinder are slidably connected in the limiting grooves.

[0009] Preferably, a second water pumping pipe is also penetrated through the upper end surface of the transparent outer cylinder, and the outer wall of the second water pumping pipe is fixedly connected with two water pumping hoses extending outside the transparent outer cylinder, and the other ends of the two water pumping hoses are fixedly connected with two water-filled plugs respectively.

[0010] Preferably, the two water extraction hoses are respectively located below the two water-filled pluggers.

[0011] Preferably, the lower end of the first water pumping pipe is fixedly connected to an auxiliary drain pipe, one end of which is passed through the outside of the transparent outer cylinder, and the auxiliary drain pipe draws water from the outside of the transparent outer cylinder.

[0012] Preferably, the upper ends of the first water pumping pipe and the second water pumping pipe are connected, and a valve is installed at the connection point between the second water pumping pipe and the first water pumping pipe.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The utility model divides a certain section of the borehole by a water-filled plugger, pumps out the water in the section of the borehole, installs the borehole TV probe in a transparent inner tube, and slides from the transparent outer tube through the transparent inner tube, thereby realizing the detection of the rock formation crushing range of the section of the borehole. The device is lightweight in design and can be moved freely in the borehole to realize the full-length detection of the borehole, improve the waterproofness of the borehole TV probe, and there is no sewage to block the detection line of sight, thereby ensuring the clarity of the detection record.

[0015] 2. The utility model fixes convex strips on the outer walls of the cylinder body and the waterproof back cover, and the convex strips cooperate with the stoppers to slide with the grooves and the limit grooves in the transparent outer cylinder respectively, so as to prevent the transparent inner cylinder from rotating in the transparent outer cylinder and affecting the work of the drilling TV probe. At the same time, the transparent inner cylinder is restricted so that it will not be separated from the transparent outer cylinder to affect detection, and it will not be fully inserted into the transparent outer cylinder to cause difficulty in removal, thereby improving practicality.

[0016] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the transparent outer cylinder of the utility model;

[0019] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0020] Figure 4 This is a schematic diagram of the cross-sectional inner wall structure of the transparent outer cylinder of the utility model;

[0021] Figure 5 This is a schematic diagram of the transparent outer cylinder of the utility model when viewed from above;

[0022] Figure 6 This is a schematic diagram of the explosion structure of the transparent inner tube of the utility model;

[0023] Figure 7 It is a schematic diagram of the communication structure between the first water pumping pipe and the second water pumping pipe of the utility model.

[0024] In the figure: 1. Transparent outer cylinder; 2. Transparent inner cylinder; 21. Cylinder body; 22. Waterproof back cover; 23. Wire slot; 24. Pipe slot; 25. Waterproof rubber plug sleeve; 26. Raised strip; 27. Block; 3. First water extraction pipe; 4. Water injection pipe; 5. Water filling plug; 6. Water extraction port; 7. Auxiliary drainage pipe; 8. Water injection hose; 9. Second water extraction pipe; 10. Water extraction hose; 11. Valve; 12. Groove; 13. Limiting groove. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this technical field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-7The tunnel floor drilling TV probe waterproof protection device of this embodiment comprises a transparent outer cylinder 1 and a transparent inner cylinder 2, the transparent inner cylinder 2 is slidably connected in the transparent outer cylinder 1, the transparent inner cylinder 2 comprises a cylinder body 21 and a waterproof back cover 22 which are slidably connected to the inner wall of the transparent outer cylinder 1, the waterproof back cover 22 is threadedly connected to the cylinder body 21, a pipe slot 24 and a wire slot 23 are provided on the upper end surface of the waterproof back cover 22, waterproof rubber soft plug sleeves 25 are inserted in the pipe slot 24 and the wire slot 23, water-filled plugs 5 are installed on the outer walls of both ends of the transparent outer cylinder 1, a first water pumping pipe 3 and a water injection pipe 4 are penetrated on the upper end surface of the transparent outer cylinder 1, the lower end of the first water pumping pipe 3 is fixedly connected with a water pumping port 6 which is penetrated to the outside of the transparent outer cylinder 1, the water pumping port 6 is located between the two water-filled plugs 5, the outer wall of the water injection pipe 4 is fixedly connected with two water injection hoses 8 which are penetrated to the outside of the transparent outer cylinder 1, and the other ends of the two water injection hoses 8 are respectively fixedly connected to the two water-filled plugs 5.

[0027] like Figure 1 , 2As shown in , 3 and 6, the structure of the waterproof protection device for the drilling TV probe in the utility model is similar to that of the existing waterproof protection device for the drilling TV probe. The main improvement of the utility model is that the drilling TV probe can detect the tunnel under waterproof protection and ensure the clarity of the detection record. When the tunnel drilling hole needs to be detected by TV, the upper end of the cylinder 21 is pulled out from the transparent outer cylinder 1, and the drilling TV probe is inserted into the cylinder 21. The inner diameter of the cylinder 21 and the waterproof back cover 22 is the same as that of the drilling TV probe. The outer wall of the drilling motor probe is the same, the data line of the drilling motor probe passes through the line slot 23, and the support tube of the drilling motor probe passes through the tube slot 24. The waterproof back cover 22 is put on the drilling TV probe and threadedly connected with the barrel 21, and then the drilling TV probe is locked. The data line and the support tube pass through the waterproof rubber soft plug sleeve 25 respectively inserted in the line slot 23 and the tube slot 24. The waterproof rubber soft plug sleeve 25 wraps the data line and the support tube to achieve the sealing inside the barrel 21 and the waterproof back cover 22. At this time, the transparent outer cylinder 1 is put together with The transparent inner tube 2 is put into the borehole to be detected. After being placed in the designated position, the outer ends of the water injection pipe 4 and the first water extraction pipe 3 are connected to the output ends of the external water injection pump and the water extraction pump respectively. The external water injection pump is started. The water injection pump fills water into the two water-filled plugs 5 through the water injection pipe 4 in cooperation with the water injection hose 8, so that the two water-filled plugs 5 expand and fit the inner wall of the borehole. At this time, the water-filled plugs 5 at the upper and lower ends seal the borehole. The external water injection pump is turned off, and then the external water extraction pump is started. The water extraction pump passes through the first water extraction pipe 3 and the water extraction port 6. The water between the two water-filled pluggers 5 is pumped out, and after the water is pumped out, the transparent inner cylinder 2 is pushed to move in the transparent outer cylinder 1, so that the drilling TV probe in the transparent inner cylinder 2 can detect the section of the borehole through the transparent inner cylinder 2 and the transparent outer cylinder 1. After the detection is completed, the water in the water-filled plugger 5 is pumped out, and the transparent outer cylinder 1 and the transparent inner cylinder 2 are continued to be moved, and the above steps are repeated to finally complete the observation of the water-containing borehole at the bottom, thereby improving the waterproofness of the drilling TV probe, and there is no sewage blocking the detection time, thereby ensuring the clarity of the detection record.

[0028] like Figure 2-4 As shown, the inner wall of the transparent outer cylinder 1 is provided with two grooves 12, and the outer walls of the cylinder body 21 and the waterproof back cover 22 of the transparent inner cylinder 2 are fixedly connected with two convex strips 26, the convex strips 26 are engaged with the grooves 12, and the convex strips 26 are slidably connected to the inner walls of the grooves 12; when the cylinder body 21 and the waterproof back cover 22 move in the transparent outer cylinder 1, the convex strips 26 on the outer walls of the cylinder body 21 and the waterproof back cover 22 slide in the grooves 12, and the grooves 12 restrict the cylinder body 21 and the waterproof back cover 22 through the convex strips 26, so that they will not rotate in the transparent outer cylinder 1, thereby preventing the transparent inner cylinder 2 from rotating in the transparent outer cylinder 1 and affecting the operation of the drilling TV probe.

[0029] like Figure 2 , 4As shown, both sides of the inner wall of the groove 12 are provided with limiting grooves 13, the length of the limiting grooves 13 is less than the length of the groove 12, the ends of the convex strips 26 located on the outer wall of the lower end of the cylinder 21 and the outer wall of the upper end of the waterproof back cover 22 are fixedly connected with blocks 27, and the blocks 27 located on the outer wall of the cylinder 21 are slidably connected in the limiting grooves 13; when the cylinder 21 moves in the transparent outer cylinder 1, the blocks 27 on the outer wall slide in the limiting grooves 13, and the limiting grooves 13 restrict the blocks 27, so that the blocks 27 cannot move from the outer wall of the cylinder 21. The transparent outer cylinder 1 can slide out, so that the cylinder body 21 will not slide out from the transparent outer cylinder 1, so as to avoid the transparent inner cylinder 2 being separated from the transparent outer cylinder 1 and affecting the detection in the drill hole. At the same time, when the waterproof rear cover 22 moves in the transparent outer cylinder 1, because both ends of the limiting groove 13 are sealing structures, the block 27 on the outer wall of the waterproof rear cover 22 can block it, so as to avoid the waterproof rear cover 22 completely sliding into the transparent outer cylinder 1, causing the transparent inner cylinder 2 to be difficult to move out of the transparent outer cylinder 1, thereby improving the convenience of use.

[0030] like Figure 1 , 5 As shown, a second water pumping pipe 9 is also penetrated through the upper end surface of the transparent outer tube 1, and the outer wall of the second water pumping pipe 9 is fixedly connected with two water pumping hoses 10 extending to the outside of the transparent outer tube 1, and the other ends of the two water pumping hoses 10 are respectively fixedly connected with two water-filled plugs 5; the outer end of the second water pumping pipe 9 is connected with the output end of an external water pump, and when it is necessary to pump out the water in the water-filled plug 5, the external water pump connected to the second water pumping pipe 9 can be started, and then the second water pumping pipe 9 cooperates with the water pumping hose 10 to pump out the water in the water-filled plug 5, so that the transparent outer tube 1 can continue to move in the borehole to adjust the detection position.

[0031] like Figure 5 As shown, two water extraction hoses 10 are respectively located below the two water-filled plugs 5; the water extraction hoses 10 located below the water-filled plugs 5 can more conveniently and quickly extract the water in the water-filled plugs 5, thereby improving the operating efficiency.

[0032] like Figure 3 As shown, the lower end of the first water-pumping pipe 3 is fixedly connected to an auxiliary drainage pipe 7, one end of the auxiliary drainage pipe 7 is passed through the outside of the transparent outer cylinder 1, and the auxiliary drainage pipe 7 extracts water from the outside of the transparent outer cylinder 1; when the transparent inner cylinder 2 needs to move in the transparent outer cylinder 1, the inner hole of the transparent outer cylinder 1 is filled with water, and then the water pump connected to the first water-pumping pipe 3 from the outside can be started to work, so that the first water-pumping pipe 3 cooperates with the auxiliary drainage pipe 7 to extract the water under the transparent outer cylinder 1, so that the water in the inner hole of the transparent outer cylinder 1 flows out and is discharged by the auxiliary drainage pipe 7, and the water-filled plugging device 5 blocks the drill hole so that water will not continue to enter the inner hole of the transparent outer cylinder 1. At this time, the transparent inner cylinder 2 will not be blocked by the damping of water when moving, which facilitates the movement of the transparent inner cylinder 2 and improves practicality.

[0033] like Figure 7 As shown, the upper ends of the first pumping pipe 3 and the second pumping pipe 9 are connected, and a valve 11 is installed at the connection between the second pumping pipe 9 and the first pumping pipe 3; when only the first pumping pipe 3 is needed to pump water, the valve 11 is closed, and when the water in the water-filled plug 5 needs to be pumped out, the valve 11 is opened, and the water in the water-filled plug 5 can be pumped out by using a pumping pump connected to the first pumping pipe 3, the second pumping pipe 9 is connected to the first pumping pipe 3 and the valve 11 is installed to control the opening and closing of the second pumping pipe 9, so that only a single pumping pump is needed to pump water for different needs, thereby reducing equipment costs.

[0034] The implementation steps in this embodiment are as follows: when it is necessary to perform television detection on the tunnel borehole, the upper end of the cylinder 21 is pulled out from the transparent outer cylinder 1, and the drilling TV probe is inserted into the cylinder 21. The inner diameter of the cylinder 21 and the waterproof back cover 22 is the same as the outer wall of the drilling TV probe. The data line of the drilling motor probe passes through the line slot 23, and the support tube of the drilling motor probe passes through the tube slot 24. The waterproof back cover 22 is sleeved on the drilling TV probe and threadedly connected with the cylinder 21, and then the drilling TV probe is locked. The data line and the support tube are both passed through the waterproof rubber soft plug sleeve 25 respectively inserted in the line slot 23 and the tube slot 24. The waterproof rubber soft plug sleeve 25 wraps the data line and the support tube to achieve sealing inside the cylinder 21 and the waterproof back cover 22. At this time, the transparent outer cylinder 1 is placed together with the transparent inner cylinder 2 in the borehole to be detected. After being placed in the designated position, the outer ends of the water injection pipe 4 and the first water pumping pipe 3 are respectively connected to the output of the external water injection pump and the water pump. The two ends are connected, and the external water injection pump is started. The water injection pump fills water into the two water-filled pluggers 5 through the water injection pipe 4 and the water injection hose 8, so that the two water-filled pluggers 5 expand and fit the inner wall of the borehole. At this time, the water-filled pluggers 5 at the upper and lower ends seal this section of the borehole, and the external water injection pump is turned off, and then the external water pumping pump is started. The water pumping pump pumps out the water between the two water-filled pluggers 5 and the water in the inner hole of the transparent outer cylinder 1 through the first water pumping pipe 3, the water pumping port 6 and the auxiliary drainage pipe 7. After the water is pumped out, the transparent inner cylinder 2 is pushed to move in the transparent outer cylinder 1, so that the drilling TV probe in the transparent inner cylinder 2 detects this section of the borehole through the transparent inner cylinder 2 and the transparent outer cylinder 1. After the detection is completed, the valve 11 is opened, and the water pump connected to the first water pumping pipe 3 is started to pump out the water in the water-filled plugger 5 through the second water pumping pipe 9 and the water pumping hose 10, and then the transparent outer cylinder 1 and the transparent inner cylinder 2 are continued to be moved, and the above steps are repeated to finally complete the observation of the bottom water-containing borehole.

[0035] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A waterproof protection device for a tunnel floor drilling TV probe, characterized in that: The transparent outer tube (1) comprises a transparent inner tube (2), wherein the transparent inner tube (2) is slidably connected to the inner wall of the transparent outer tube (1), and the transparent inner tube (2) comprises a tube body (21) slidably connected to the inner wall of the transparent outer tube (1) and a waterproof rear cover (22), wherein the waterproof rear cover (22) is threadedly connected to the tube body (21), and a pipe notch (24) and a wire notch (23) are provided on the upper end surface of the waterproof rear cover (22), wherein the pipe notch (24) and the wire notch (23) are both plugged with a waterproof rubber soft plug sleeve (25), and the transparent outer tube (1) is provided with a waterproof rubber soft plug sleeve (25). Water-filling plugs (5) are installed on the outer walls at both ends; a first water extraction pipe (3) and a water injection pipe (4) are penetrated through the upper end surface of the transparent outer cylinder (1); the lower end of the first water extraction pipe (3) is fixedly connected to a water extraction port (6) penetrated to the outside of the transparent outer cylinder (1); the water extraction port (6) is located between the two water-filling plugs (5); the outer wall of the water injection pipe (4) is fixedly connected to two water injection hoses (8) penetrated to the outside of the transparent outer cylinder (1); the other ends of the two water injection hoses (8) are respectively fixedly connected to the two water-filling plugs (5).

2. A tunnel floor drilling TV probe waterproof protection device according to claim 1, characterized in that: The inner wall of the transparent outer cylinder (1) is provided with two grooves (12); the outer walls of the cylinder body (21) and the waterproof rear cover (22) of the transparent inner cylinder (2) are both fixedly connected with two convex strips (26); the convex strips (26) and the grooves (12) are mutually engaged, and the convex strips (26) are slidably connected to the inner wall of the grooves (12).

3. A tunnel floor drilling TV probe waterproof protection device according to claim 2, characterized in that: Limiting grooves (13) are provided on both sides of the inner wall of the groove (12); the length of the limiting grooves (13) is smaller than the length of the groove (12); the ends of the convex strips (26) located on the outer wall of the lower end of the cylinder (21) and the outer wall of the upper end of the waterproof rear cover (22) are fixedly connected with stoppers (27); the stoppers (27) located on the outer wall of the cylinder (21) are slidably connected in the limiting grooves (13).

4. The waterproof protection device for tunnel floor drilling TV probe according to claim 1 is characterized in that: A second water extraction pipe (9) is also provided through the upper end surface of the transparent outer cylinder (1), and the outer wall of the second water extraction pipe (9) is fixedly connected to two water extraction hoses (10) extending outside the transparent outer cylinder (1), and the other ends of the two water extraction hoses (10) are fixedly connected to two water-filled plugs (5) respectively.

5. A tunnel floor drilling TV probe waterproof protection device according to claim 4, characterized in that: The two water extraction hoses (10) are respectively located below the two water-filled plugs (5).

6. The waterproof protection device for tunnel floor drilling TV probe according to claim 1, characterized in that: The lower end of the first water extraction pipe (3) is fixedly connected to an auxiliary drainage pipe (7), one end of which is passed through the outside of the transparent outer cylinder (1), and the auxiliary drainage pipe (7) extracts water outside the transparent outer cylinder (1).

7. A tunnel floor drilling TV probe waterproof protection device according to claim 4, characterized in that: The upper ends of the first water pumping pipe (3) and the second water pumping pipe (9) are connected, and a valve (11) is installed at the connection point between the second water pumping pipe (9) and the first water pumping pipe (3).

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