CN205100892U - Protector for solution cavity - Google Patents
Protector for solution cavity Download PDFInfo
- Publication number
- CN205100892U CN205100892U CN201520899761.5U CN201520899761U CN205100892U CN 205100892 U CN205100892 U CN 205100892U CN 201520899761 U CN201520899761 U CN 201520899761U CN 205100892 U CN205100892 U CN 205100892U
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- China
- Prior art keywords
- sleeve pipe
- solution cavity
- wall
- internal thread
- casing joint
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
An object of the utility model is to provide a protector for solution cavity, including sleeve pipe, casing joint and sleeve pipe sword foot, be equipped with first external screw thread and first internal thread on the sleeve pipe, be equipped with the second internal thread on casing joint's the lower extreme inner wall, and wide lower narrow first round platform shape structure is presented to its lower extreme outer wall, be equipped with the second external screw thread on the upper end outer wall of sleeve pipe sword foot, and wide lower narrow second round platform shape structure is presented to its lower extreme outer wall. Overall structure retrencies, adopt threaded connection, simple to operate between sleeve pipe, casing joint and the sleeve pipe sword foot three, the last round platform shape structure of casing joint, the reaming of being convenient for is used, round platform shape structure on the sleeve pipe sword foot is convenient for wear out non - rock matter solution cavity filler for whole protector for solution cavity more steadily buries underground, and the practicality is strong.
Description
Technical field
The utility model relates to exploratory works technical field, is specifically related to a kind of solution cavity protector.
Background technology
Probing uses plant by earth's surface to underground drilling and forming hole, thus reach the engineering construction measure of preset requirement.Drilling method of the prior art is as follows:
Application number be 02807756.3 application discloses the drilling method that a kind of use one drilling equipment carries out, this equipment has a drilling rig, this device comprises a case member and a drilling assembly, have in its drill head drill centers the first boring tool and to the second boring tool of case member centre bore reaming and the flushing flow arrangement for rinsing produced scrap.At least under drilling situation, this first boring tool is connected on power transmission, and in order to make this instrument shift out from boring, and extensible structure a such as bayonet coupling and so on connects with the second boring tool.The feed flow of the scouring media completed at center is transported to its outer peripheral edge by the internal drilling in the first frame parts portion belonging to the first boring tool, and in order to complete the inverse circulation of so-called scouring media, the stream that returns of scouring media is transported to the space between the first frame parts and case member from the drilling surface of the first frame parts by internal drilling wherein.
Adopt borehole casing to protect boring in prior art, be usually arranged on brill mouth and prevent aperture from subsiding, also can play a supportive role in certain supporting section under hole.When navigation channel drilling on waterways runs into solution cavity in darker stratum, usual method is that cost plenty of time embedding sleeve pipe is to solution cavity position, after completing probing work, by the problem facing sleeve pipe and cannot extract, and the water-bed sleeve pipe to this segment distance of the water surface needs to spend cost to carry out cutting because affect navigation channel and passing through and extracts in navigation channel, will be embedded in stratum to the sleeve pipe of this segment distance bottom solution cavity under it, cannot take out.
In sum, be badly in need of a kind of applicable navigation channel drilling on waterways with, easy to operate and to the good device of solution cavity protection effect and drilling method to solve problems of the prior art.
Utility model content
The purpose of this utility model is to provide a kind of solution cavity protector, be applicable to navigation channel drilling on waterways with, easy to operate and good to solution cavity protection effect, concrete technical scheme is as follows:
A kind of solution cavity protector, comprises the protection single-piece that one group of protection single-piece or at least two group models vary in size;
Described protection single-piece comprise hollow sleeve pipe, be arranged on described sleeve upper end and the casing joint be connected with drilling rod and the sleeve pipe sword pin being arranged on described its lower end, described casing joint and sleeve pipe sword pin all have the first through hole that identical with described casing inner diameter and concentricity axis is arranged;
The upper end outer wall of described sleeve pipe is provided with the first external screw thread, and its lower end inner wall is provided with the first internal thread;
The lower end inner wall of described casing joint is provided with the second internal thread matched with described first external screw thread, and its lower end outer wall is the first truncated cone-shaped structure wide at the top and narrow at the bottom; The upper end of described casing joint is connected with drilling rod;
The upper end outer wall of described sleeve pipe sword pin is provided with the second external screw thread matched with described first internal thread, and its lower end outer wall is the second truncated cone-shaped structure wide at the top and narrow at the bottom.
In order to reach better technique effect, described casing joint connects dish by sleeve pipe and is connected with drilling rod, and the upper end of described casing joint comprises the linkage section that pipe sword section that inwall is the 3rd truncated cone-shaped structure wide at the top and narrow at the bottom and inwall are provided with the 3rd internal thread; The upper end inwall that described sleeve pipe connects dish is provided with the internal thread matched with drilling rod lower end, and its lower end outer wall is provided with the external screw thread matched with described 3rd internal thread.
Preferred in above technical scheme, described sleeve pipe connects dish and comprises VERTICAL TUBE and be arranged on described VERTICAL TUBE lower end and the disc arranged in the horizontal direction, described internal thread is arranged on the upper end inwall of described VERTICAL TUBE, and described external screw thread is arranged on the lower end outer wall of described disc; Described disc is provided with multiple second through hole, and the central axis of described second through hole and the central axis of described first through hole are parallel to each other.
Preferred in above technical scheme, the annularly uniform setting of described second through hole, its quantity is 4-8.
Preferred in above technical scheme, described first external screw thread, the second external screw thread, external screw thread, the first internal thread, the second internal thread, the 3rd internal thread and internal thread height are vertically 5-15 centimetre; Vertically, the length of described sleeve pipe 8%-20% larger than the height of solution cavity; Described casing joint outer wall is greater than 0 to the maximum horizontal range of described sleeve outer wall; The outer wall of described sleeve pipe sword pin is 0 to the minimum horizontal distance of the inwall of described sleeve pipe sword pin.
Preferred in above technical scheme, the material that sleeve pipe, casing joint, sleeve pipe sword pin and sleeve pipe connect dish is steel.
Preferred in above technical scheme, the curved surface at the outer wall place of described first truncated cone-shaped structure with between horizontal plane, the curved surface at the outer wall place of described second truncated cone-shaped structure is with between horizontal plane and the curved surface at the inwall place of described 3rd truncated cone-shaped structure and the angle all becoming 15 °-45 ° between horizontal plane.
Application the technical solution of the utility model, has following beneficial effect:
(1) the utility model solution cavity protector comprises sleeve pipe, is arranged on described sleeve upper end and the casing joint be connected with drilling rod and the sleeve pipe sword pin being arranged on described its lower end, the upper end outer wall of described sleeve pipe is provided with the first external screw thread, and its lower end inner wall is provided with the first internal thread; The lower end inner wall of described casing joint is provided with the second internal thread matched with described first external screw thread, and its lower end outer wall is the first truncated cone-shaped structure wide at the top and narrow at the bottom; The upper end outer wall of described sleeve pipe sword pin is provided with the second external screw thread matched with described first internal thread, and its lower end outer wall is the second truncated cone-shaped structure wide at the top and narrow at the bottom.Overall structure is simplified; Adopt between sleeve pipe, casing joint and sleeve pipe sword pin three and be threaded, easy for installation; Truncated cone-shaped structure in casing joint, is convenient to reaming and uses; Truncated cone-shaped structure on sleeve pipe sword pin, is convenient to wear out non-rock matter solution cavity filler, whole device is more steadily buried underground, practical.
(2) casing joint described in the utility model connects to coil by sleeve pipe and is connected with drilling rod, the upper end of described casing joint comprises the linkage section that pipe sword section that inwall is the 3rd truncated cone-shaped structure wide at the top and narrow at the bottom and inwall are provided with the 3rd internal thread, the upper end inwall that described sleeve pipe connects dish is provided with internal thread, and its lower end outer wall is provided with external screw thread.The structure of casing joint is simplified; Pipe sword section and sleeve pipe sword pin are oppositely arranged, for reducing the inclination (ensureing that it is vertically drilled) of drill bit in work progress while reaming, namely the sleeve pipe sword pin rapid alignment realized in lower one deck solution cavity protector inserts, reduce upper strata sleeve pipe and the deviation of lower floor's sleeve pipe when vertical direction is installed as much as possible, make drill bit as much as possible through more multi-layered solution cavity, thus realize the protection of multilayer karst cave, practical; Employing is threaded, and is convenient to installation and removal.
(3) sleeve pipe described in the utility model connects dish and comprises VERTICAL TUBE and disc, and described disc is provided with multiple second through hole, and the central axis of described second through hole and the central axis of described first through hole are parallel to each other.The structure design that sleeve pipe connects dish is convenient to install, and water is crossed in being designed for when burying solution cavity protector underground of the second through hole, reduces the resistance of water, improves efficiency of construction and the barrier propterty of solution cavity; The annularly uniform setting of described second through hole, its quantity is 4-8, and practical requirement is practical.
(4) the first external screw thread described in the utility model, the second external screw thread, external screw thread, the first internal thread, the second internal thread, the 3rd internal thread and internal thread height are vertically 5-15 centimetre; Vertically, the length of described sleeve pipe 8%-20% larger than the height of solution cavity.The internal stability of solution cavity protector is good, can realize the protection of solution cavity better.
(5) material that sleeve pipe described in the utility model, casing joint, sleeve pipe sword pin and sleeve pipe connect dish is steel, easily obtains and can practical requirement.
(6) the outer wall place of the first truncated cone-shaped structure described in the utility model curved surface with between horizontal plane, the curved surface at the outer wall place of described second truncated cone-shaped structure is with between horizontal plane and the curved surface at the inwall place of described 3rd truncated cone-shaped structure and the angle all becoming 15 °-45 ° between horizontal plane.Easy to process, and respective function can be realized well, practical.
Except object described above, feature and advantage, the utility model also has other object, feature and advantage.Below with reference to figure, the utility model is described in further detail.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the detonation configuration schematic diagram of the solution cavity protector of the utility model preferred embodiment 1;
Fig. 2 is schematic diagram when solution cavity protector is for drilling in the utility model preferred embodiment 1;
Fig. 3 is schematic diagram when solution cavity protector is for drilling in the utility model preferred embodiment 2;
Wherein, 1, sleeve pipe, 11, first external screw thread, 12, first internal thread, 2, casing joint, 21, second internal thread, 22, pipe sword section, 23, linkage section, 231, 3rd internal thread, 3, sleeve pipe sword pin, 31, second external screw thread, 4, sleeve pipe connects dish, 41, internal thread, 42, external screw thread, 43, VERTICAL TUBE, 44, disc, 45, second through hole, 5, heavy caliber tube having holes sleeve pipe, 6, solution cavity, 61, Upper Plate of Karst Cave, 62, solution cavity base plate, 7, drilling rod, 8, first floor solution cavity, 81, first floor Upper Plate of Karst Cave, 82, first floor solution cavity base plate, 9, second layer solution cavity, 91, second layer Upper Plate of Karst Cave, 92, second layer solution cavity base plate, 101, probing work plane, 102, the bottom, navigation channel 102.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but the multitude of different ways that the utility model can limit according to claim and cover is implemented.
Embodiment 1:
See Fig. 1 and Fig. 2, a kind of solution cavity protector, comprise one group of protection single-piece, described protection single-piece comprises sleeve pipe 1, is arranged on described sleeve pipe 1 upper end and connects the casing joint 2 that dish 4 is connected with drilling rod 7 and the sleeve pipe sword pin 3 being arranged on described sleeve pipe 1 lower end by sleeve pipe, and described casing joint 2 and sleeve pipe sword pin 3 all have the first through hole that and concentricity axis identical with described sleeve pipe 1 internal diameter is arranged.
The upper end outer wall of described sleeve pipe 1 is provided with the first external screw thread 11, and its lower end inner wall is provided with the first internal thread 12; Vertically, the length of described sleeve pipe 1 8%-20% larger than the height of solution cavity.
The upper end outer wall of described sleeve pipe sword pin 3 is provided with the second external screw thread 31 matched with described first internal thread 12, and its lower end outer wall is the second truncated cone-shaped structure wide at the top and narrow at the bottom; Described sleeve pipe sword pin 3 outer wall is 0 to the minimum horizontal distance of its inwall.
The lower end inner wall of described casing joint 2 is provided with the second internal thread 21 matched with described first external screw thread 11, and its lower end outer wall is the first truncated cone-shaped structure wide at the top and narrow at the bottom; The upper end of described casing joint 2 comprises the linkage section 23 that pipe sword section 22 that inwall is the 3rd truncated cone-shaped structure wide at the top and narrow at the bottom and inwall are provided with the 3rd internal thread 231; Described casing joint 2 outer wall is greater than 0 (preferably: in horizontally disposed plane, the smallest cross-section area of described casing joint 2 is identical with the maximum cross-section area of described sleeve pipe 1) to the maximum horizontal range of described sleeve pipe 1 outer wall.The structure of casing joint is simplified; The pipe sword section which is provided with and sleeve pipe sword pin are oppositely arranged, for reducing the inclination of drill bit in work progress while reaming, namely the sleeve pipe sword pin rapid alignment realized in lower one deck solution cavity protector inserts, as much as possible reduce upper strata sleeve pipe and lower floor's sleeve pipe poor in the installation of vertical direction, make drill bit as much as possible through more multi-layered solution cavity, thus realize the protection of multilayer karst cave.
The upper end inwall that described sleeve pipe connects dish 4 is provided with the internal thread 41 matched with drilling rod lower end, and its lower end outer wall is provided with the external screw thread 42 matched with described 3rd internal thread 22.Preferably: described sleeve pipe connects dish 4 and comprises the VERTICAL TUBE 43 and disc 44 of connecting successively from top to bottom, and described internal thread 41 is arranged on the upper end inwall of described VERTICAL TUBE 43, and described external screw thread 42 is arranged on the lower end outer wall of described disc 44; Described disc 44 is provided with multiple second through hole 45, and the central axis of described second through hole 45 and the central axis of described first through hole are parallel to each other.The preferably annularly uniform setting of described second through hole 45, its quantity is 4-8.
Described first external screw thread 11, second external screw thread 31, external screw thread 42, first internal thread 12, second internal thread 21, the 3rd internal thread 22 and internal thread 41 height are vertically 5-15 centimetre.
The material that described sleeve pipe 1, casing joint 2, sleeve pipe sword pin 3 and sleeve pipe connect dish 4 is steel (preferably select stainless steel, gradually the part solution cavity protector of layer can be regained as required and reuse).
The solution cavity protector of application the present embodiment carries out navigation channel drilling on waterways method, specifically comprises the following steps:
Step one: conveniently the embedding probing work plane of drilling on waterways method is to the heavy caliber tube having holes sleeve pipe at the bottom, navigation channel, starts conventional drilling on waterways;
Step 2: in the position of solution cavity 6, drills solution cavity 6 to solution cavity base plate 62 position by drilling tool;
Step 3: drilling rod 7 is regained, above-mentioned solution cavity protector is installed (before use in the drilling rod lower end of drilling tool, by the sleeve pipe connected, casing joint, sleeve pipe sword pin and sleeve pipe connect the junction of coiling each parts preferably to carry out spot welding again or adopts other welding manners to reinforce the connection), described solution cavity protector is sent into solution cavity 6 place, run through described solution cavity completely with described sleeve pipe 1 to arrange and be as the criterion that (two ends of sleeve pipe 1 lay respectively at Upper Plate of Karst Cave more than 61 (about 5-15 centimetre) and solution cavity base plate less than 62 (about 5-15 centimetre), namely the height of the aspect ratio solution cavity 6 of sleeve pipe 1 wants large),
Step 4: rotate backward rig and make casing joint in solution cavity protector 2 and sleeve pipe connect dish 4 to depart from, make sleeve pipe 1, casing joint 2 and sleeve pipe sword pin 3 stay solution cavity place, complete the protection of solution cavity; The drilling rod connecing dish 4 with sleeve pipe is regained, takes off after sleeve pipe connects dish 4 and proceed probing;
Step 5: when reaching drilling depth requirement, drills complete.
Adopt solution cavity protector of the present utility model and drilling method, there is following effect:
(1) the utility model solution cavity is simple by protector overall structure, and sleeve pipe, casing joint, sleeve pipe sword pin and sleeve pipe connect dish all can be designed to standardization accessory, and part only needs work process a little, is easy to safeguard.
(2) the utility model drilling method, easy and simple to handle, and difficulty of construction is little, easy to use.
(3) the utility model drilling method is compared with traditional drilling method, decrease the shell material between tapping sleeve to solution cavity protection casing, tapping sleeve directly can extract recycling after probing completes, need not cut, save probing expense and the required time is buried and excised to sleeve pipe underground.
Embodiment 2:
A kind of solution cavity protector, comprise first group of protection single-piece and the second group of protection single-piece (model of second group of protection single-piece also can less than the model of first group of protection single-piece can be little more numbers) than described little No. one of first group of protection single-piece model, second group of protection single-piece can pass completely through from first group of protection single-piece.First group of protection single-piece is all identical with the structure of the protection single-piece in embodiment 1 in structure with second group of protection single-piece.
Above-mentioned solution cavity protector is applied to the navigation channel drilling on waterways process with two-layer solution cavity, and schematic diagram when the present embodiment solution cavity protector is for drilling refers to Fig. 3.
Concrete construction method comprises the following steps:
Step one: the conveniently heavy caliber tube having holes sleeve pipe 5 at the bottom, drilling on waterways method embedding probing work plane 101 to navigation channel 102, starts conventional drilling on waterways;
Step 2: in first floor solution cavity 8 position, drills first floor solution cavity 8 to first floor solution cavity base plate 82 position by drilling tool;
Step 3: drilling rod 7 is regained, first group of protection single-piece is installed (before use in the drilling rod lower end of drilling tool, by the sleeve pipe connected, casing joint, sleeve pipe sword pin and sleeve pipe connect the junction of coiling each parts preferably to carry out spot welding again or adopts other welding manners to reinforce the connection), described first group of protection single-piece is sent into first floor solution cavity 8 place, run through described first floor solution cavity 8 completely with described sleeve pipe 1 to arrange and be as the criterion that (two ends of sleeve pipe 1 lay respectively at first floor Upper Plate of Karst Cave more than 81 and first floor solution cavity base plate less than 82, namely the height of the aspect ratio first floor solution cavity 8 of sleeve pipe 1 wants large),
Step 4: rotate backward rig and make first group of casing joint 2 of protecting in single-piece connect dish 4 with sleeve pipe to depart from, make sleeve pipe 1, casing joint 2 and sleeve pipe sword pin 3 stay first floor solution cavity 8 place, complete the protection of first floor solution cavity 8; The drilling rod connecing dish 4 with sleeve pipe is regained, takes off after sleeve pipe connects dish 4 and proceed probing;
Step 5: in the position of second layer solution cavity 9, drills second layer solution cavity 9 to second layer solution cavity base plate 92 position by drilling tool;
Step 6: drilling rod 7 is regained, second group of protection single-piece is installed (before use in the drilling rod lower end of drilling tool, by the sleeve pipe connected, casing joint, sleeve pipe sword pin and sleeve pipe connect the junction of coiling each parts preferably to carry out spot welding again or adopts other welding manners to reinforce the connection), described second group of protection single-piece is sent into second layer solution cavity 9 place, run through described second layer solution cavity 9 completely with described sleeve pipe 1 to arrange and be as the criterion that (two ends of sleeve pipe 1 lay respectively at second layer Upper Plate of Karst Cave more than 91 and second layer solution cavity base plate less than 92, namely the height of the aspect ratio second layer solution cavity 9 of sleeve pipe 1 wants large),
In the decline process of second group of protection single-piece, after second group of protection single integral piece have passed through first floor protection single-piece, just arrive second layer solution cavity 9 place.
Step 7: rotate backward rig and make second group of casing joint 2 of protecting in single-piece connect dish 4 with sleeve pipe to depart from, make sleeve pipe 1, casing joint 2 and sleeve pipe sword pin 3 stay second layer solution cavity 9 place, complete the protection of second layer solution cavity 9; The drilling rod connecing dish 4 with sleeve pipe is regained, takes off after sleeve pipe connects dish 4 and proceed probing;
Step 8: when reaching drilling depth requirement, drills complete.
When running into three layers and above number of plies solution cavity in drilling process, adopt and comprise identical from the solution cavity number of plies group of number and the solution cavity protector of all different protection single-piece of specification (in work progress, the solution cavity protector model extremely when young No. one that the solution cavity protector that lower one deck solution cavity place uses uses than last layer solution cavity place, to guarantee that the protection single-piece that lower one deck solution cavity place adopts can pass through last layer protection single-piece), construction method is similar to the present embodiment 2.
The solution cavity protector that shallow-layer adopts can be regained according to demand, concrete mode is: by due-in go back on defense protect sleeve pipe that single-piece mates connect dish be arranged on drilling rod end and deliver to due-in go back on defense protect single-piece place, rotate drilling rod, make sleeve pipe connect dish and casing joint stable connection, draw back the recovery that drilling rod can realize protecting single-piece straight up.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (7)
1. a solution cavity protector, is characterized in that, comprises one group of protection single-piece or the protection single-piece that varies in size of at least two group models;
Described protection single-piece comprise hollow sleeve pipe (1), be arranged on described sleeve pipe (1) upper end and the casing joint (2) that is connected with drilling rod of its upper end and the sleeve pipe sword pin (3) that is arranged on described sleeve pipe (1) lower end, described casing joint (2) and sleeve pipe sword pin (3) all have the first through hole that and concentricity axis identical with described sleeve pipe (1) internal diameter is arranged;
The upper end outer wall of described sleeve pipe (1) is provided with the first external screw thread (11), and its lower end inner wall is provided with the first internal thread (12);
The lower end inner wall of described casing joint (2) is provided with the second internal thread (21) matched with described first external screw thread (11), and its lower end outer wall is the first truncated cone-shaped structure wide at the top and narrow at the bottom;
The upper end outer wall of described sleeve pipe sword pin (3) is provided with the second external screw thread (31) matched with described first internal thread (12), and its lower end outer wall is the second truncated cone-shaped structure wide at the top and narrow at the bottom.
2. solution cavity protector according to claim 1, it is characterized in that, the upper end of described casing joint (2) connects dish (4) by sleeve pipe and is connected with drilling rod, and the upper end of described casing joint (2) comprises the linkage section (23) that pipe sword section (22) that inwall is the 3rd truncated cone-shaped structure wide at the top and narrow at the bottom and inwall are provided with the 3rd internal thread (231); The upper end inwall that described sleeve pipe connects dish (4) is provided with the internal thread (41) matched with drilling rod lower end, and its lower end outer wall is provided with the external screw thread (42) matched with described 3rd internal thread (22).
3. solution cavity protector according to claim 2, it is characterized in that, described sleeve pipe connects dish (4) and comprises VERTICAL TUBE (43) and be arranged on described VERTICAL TUBE (43) lower end and the disc (44) arranged in the horizontal direction, described internal thread (41) is arranged on the upper end inwall of described VERTICAL TUBE (43), and described external screw thread (42) is arranged on the lower end outer wall of described disc (44); Described disc (44) is provided with multiple second through hole (45), and the central axis of described second through hole (45) and the central axis of described first through hole are parallel to each other.
4. solution cavity protector according to claim 3, is characterized in that, the annularly uniform setting of described second through hole (45), and its quantity is 4-8.
5. solution cavity protector according to claim 3, it is characterized in that, described first external screw thread (11), the second external screw thread (31), external screw thread (42), the first internal thread (12), the second internal thread (21), the 3rd internal thread (22) and internal thread (41) height are vertically 5-15 centimetre; Vertically, the length of described sleeve pipe (1) 8%-20% larger than the height of solution cavity; Described casing joint (2) outer wall is greater than 0 to the maximum horizontal range of described sleeve pipe (1) outer wall; The outer wall of described sleeve pipe sword pin (3) is 0 to the minimum horizontal distance of the inwall of described sleeve pipe sword pin (3).
6. the solution cavity protector according to claim 2-5 any one, it is characterized in that, the material that described sleeve pipe (1), casing joint (2), sleeve pipe sword pin (3) and sleeve pipe connect dish (4) is steel.
7. solution cavity protector according to claim 6, it is characterized in that, the curved surface at the outer wall place of described first truncated cone-shaped structure with between horizontal plane, the curved surface at the outer wall place of described second truncated cone-shaped structure is with between horizontal plane and the curved surface at the inwall place of described 3rd truncated cone-shaped structure and the angle all becoming 15 °-45 ° between horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520899761.5U CN205100892U (en) | 2015-11-11 | 2015-11-11 | Protector for solution cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520899761.5U CN205100892U (en) | 2015-11-11 | 2015-11-11 | Protector for solution cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205100892U true CN205100892U (en) | 2016-03-23 |
Family
ID=55516679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520899761.5U Withdrawn - After Issue CN205100892U (en) | 2015-11-11 | 2015-11-11 | Protector for solution cavity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205100892U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221080A (en) * | 2015-11-11 | 2016-01-06 | 中国有色金属长沙勘察设计研究院有限公司 | Solution cavity protector and adopt the navigation channel drilling on waterways method of this protector |
-
2015
- 2015-11-11 CN CN201520899761.5U patent/CN205100892U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221080A (en) * | 2015-11-11 | 2016-01-06 | 中国有色金属长沙勘察设计研究院有限公司 | Solution cavity protector and adopt the navigation channel drilling on waterways method of this protector |
| CN105221080B (en) * | 2015-11-11 | 2018-03-16 | 中国有色金属长沙勘察设计研究院有限公司 | Solution cavity protector and the navigation channel drilling on waterways method using this protector |
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