CN111119854A - Slidable large-stroke mining peeping instrument anti-fouling cap and using method thereof - Google Patents
Slidable large-stroke mining peeping instrument anti-fouling cap and using method thereof Download PDFInfo
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- CN111119854A CN111119854A CN202010005722.1A CN202010005722A CN111119854A CN 111119854 A CN111119854 A CN 111119854A CN 202010005722 A CN202010005722 A CN 202010005722A CN 111119854 A CN111119854 A CN 111119854A
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Abstract
The invention relates to a slidable large-stroke mining peeping instrument anti-fouling cap and a use method thereof, wherein the anti-fouling cap comprises a sleeve and a plurality of lateral baffles distributed along the circumferential direction of the sleeve, a peeping instrument probe penetrates through the sleeve and extends out of one end of the sleeve, the plurality of lateral baffles form a protective cover for protecting the peeping instrument probe, baffle support sliding frames with the same number as the lateral baffles are arranged on the sleeve, the lateral baffles are slidably connected onto the baffle support sliding frames and can rotate around the baffle support sliding frames, and the anti-fouling cap also comprises a driving device for driving the lateral baffles to open and close; the driving device comprises a sliding frame and connecting rods, the sliding frame is sleeved on the sleeve, the number of the connecting rods is the same as that of the lateral baffles, the connecting rods are hinged with the sliding frame and the lateral baffles respectively, the driving device further comprises a traction device connected with the sliding frame, a limiting device fixed on the outer circumferential surface of the sleeve and a reset spring sleeved on the outer circumferential surface of the sleeve, and the limiting device is located on one side, away from a probe of the peeping instrument, of the sliding frame.
Description
Technical Field
The invention relates to the technical field of mining detection, in particular to the field of probe auxiliary equipment of a peeping instrument, and particularly relates to a slidable large-stroke anti-fouling cap of the peeping instrument for mining and a using method thereof.
Background
In order to further master the coal seam roof separation condition in the coal mine roadway excavation or working face extraction process, field technicians or scientific researchers are prone to detecting by means of a drilling peeping instrument. However, in the pushing process of the peeping instrument in the drill hole, because the drill hole is not directly or partially collapsed, rock (coal) mud in the hole often falls on the probe of the peeping instrument, thereby blocking the detection work. Because there is not protection device, the traditional drilling peeping instrument encounters such problems in the detection process, and the peeping instrument has to be withdrawn from the drilling hole to be detected again after the probe is cleaned up. However, since the borehole being probed is often in a fractured formation, the collapse of the borehole is often exacerbated during the withdrawal of the scope, resulting in the borehole being scrapped. And the hole is drilled again or the peep instrument is withdrawn for detection again, so that great economic loss is caused.
The invention patent with application publication number CN 106644123A discloses a rock temperature measuring device for mines, wherein a protective cover in the device consists of two symmetrical arc covers, one ends of the two arc covers are movably connected to the end part of a pipe body, the temperature measuring probe can be protected when the arc covers are closed, and when the temperature measuring probe needs to be detected, the two arc covers are outwards scattered, and the temperature measuring probe is exposed in a temperature measuring hole for measuring the temperature, and the rock temperature measuring device has the following defects: 1. the tip of arc cover is located the place ahead of probe after the arc cover outwards scatters, to the probe of the camera class that needs observed, can influence the observation sight, 2, the arc cover outwards scatters the diameter that has increased whole detection device after, and the diameter size requirement to drilling is great, and causes the lateral wall to drop in the drilling easily.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the anti-fouling cap of the slidable large-stroke mining speculum, which has strong applicability, simple structure, low manufacturing cost, convenient and quick operation and a use method thereof.
The invention is realized by the following technical scheme, and provides a slidable large-stroke mining peeping instrument antifouling cap which comprises a sleeve and a plurality of lateral baffles distributed along the circumferential direction of the sleeve, wherein a peeping instrument probe penetrates through the sleeve and extends out of one end of the sleeve, the plurality of lateral baffles form a protective cover for protecting the peeping instrument probe, baffle support sliding frames with the same number as the lateral baffles are arranged on the sleeve, the lateral baffles are slidably connected onto the baffle support sliding frames and can rotate around the baffle support sliding frames, and the sliding peeping instrument antifouling cap also comprises a driving device for driving the lateral baffles to open and close; the driving device comprises a sliding frame and connecting rods, the sliding frame is sleeved on the sleeve, the connecting rods are the same in number with the lateral baffles, the connecting rods are hinged with the sliding frame and the lateral baffles respectively, the driving device further comprises a traction device connected with the sliding frame, a limiting device fixed on the outer circumferential surface of the sleeve and a reset spring sleeved on the outer circumferential surface of the sleeve, the limiting device is located on one side, away from a probe of the peeping instrument, of the sliding frame, and two ends of the reset spring are propped against the limiting device and the sliding frame.
A plurality of side direction baffle constitutes the safety cover of protection appearance probe of peeping in this scheme, thereby play the guard action to peeping the appearance probe, survey time measuring when needs, drive arrangement drive side direction baffle moves down, side direction baffle supports the slip frame around the baffle and rotates and make the safety cover open, the sleeve outside of peeping the appearance probe below is pulled to side direction baffle, thereby be convenient for peep the appearance and survey, and the space that side direction baffle occupy is little, the diameter requirement to drilling is little, be difficult to cause the lateral wall to drop in the drilling, after surveying the completion, actuating mechanism drive side direction baffle rebound, thereby side direction baffle supports the slip frame around the baffle and rotates and encloses into the safety cover.
The balladeur train cover is established on the sleeve in this scheme, through the balladeur train along sleeve endwise slip to drive the side direction baffle switching through the connecting rod, draw gear is used for pulling the balladeur train downwards, makes the balladeur train drive side direction baffle and opens, and reset spring drives the balladeur train rebound, makes the balladeur train drive side direction baffle and closes.
The inner side surface of the lateral baffle is vertically provided with a slideway, and the baffle supporting sliding frame is provided with a circular shaft which is in sliding connection in the slideway. Through the arrangement of the slide ways and the round shafts, the lateral baffle plates can be connected to the baffle plate supporting sliding frame in a sliding mode, and the round shafts can rotate in the slide ways, so that the lateral baffle plates can rotate around the baffle plate supporting sliding frame.
Preferably, the number of the side baffles is 6. Lateral baffle is provided with 6 in this scheme, and quantity can influence the switching of lateral baffle too little, and too many then the structure is complicated, difficult processing.
Preferably, the side baffles are triangular. Lateral baffle is triangle-shaped in this scheme to the safety cover that the messenger encloses is the toper, and the safety cover of being convenient for stretches into in the drilling.
Preferably, the baffle supporting sliding frame is fixedly connected with the sleeve.
Preferably, the end of the sleeve is fixedly connected with an annular fixed table, and the baffle supporting sliding frame is fixedly connected to the fixed table. The fixing table is convenient for the baffle to support the sliding frame and fixedly connect the end part of the sleeve.
Preferably, the traction device is a traction rope. The carriage is driven to move along the length direction of the sleeve by the traction rope in the scheme.
Preferably, the limiting device is an annular spring limiting ring, and the outer diameter of the spring limiting ring is larger than that of the return spring.
Preferably, the upper end and the lower end of the lateral baffle are respectively positioned at the upper side and the lower side of the orifice of the sleeve. The upper and lower both ends of side direction baffle are located the orificial upper and lower both sides of sleeve respectively in this scheme to make the safety cover surround whole orificial front end, prevent debris such as earth from getting into the sleeve mouth of pipe.
A use method of a slidable large-stroke mining peeping instrument anti-fouling cap is characterized by comprising the following steps:
a. the sleeve with the peeping instrument is inserted into the drill hole, and the probe of the peeping instrument is protected by the protective cover;
b. after the probe position is reached, pulling the traction rope, driving the sliding frame to move downwards through the traction rope, pulling the connecting rod through the sliding frame, driving the lateral baffle to rotate around the baffle support sliding frame through the connecting rod, and driving the lateral baffle to pull downwards along the baffle support sliding frame, so that the lateral baffle slides to the position below the probe of the peeping instrument, and the probe of the peeping instrument is exposed;
c. detecting the inside of the drill hole through a peeping instrument;
d. after detection is finished, the traction rope is loosened, the sliding frame is pushed to move upwards through the return spring, the connecting rod is pushed through the sliding frame, the connecting rod drives the lateral baffle to move upwards, the lateral baffle rotates around the baffle supporting sliding frame, and the lateral baffle surrounds the outer side of the probe of the peeping instrument to form a protective cover;
e. the sleeve with the scope is pulled out of the borehole.
The invention has the beneficial effects that: compared with the prior art, the slidable large-stroke mining peeping instrument anti-fouling cap and the use method thereof have the advantages that the peeping probe protective cover can prevent coal dust from falling above the probe to obstruct the peeping effect, and the probe can slide to the lower part of the probe during detection, so that the interference of the protective cover on the probe is avoided. In addition, the invention is an external device, and can be suitable for all hard push rod peering instruments which are generally used in the market at present. The invention also has the characteristics of strong applicability, simple structure, low manufacturing cost and convenient and fast operation.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a cross-sectional view taken along plane A-A of FIG. 2 in accordance with the present invention;
FIG. 4 is a schematic front view of the working state of the present invention;
FIG. 5 is a top view of the present invention in an operating state;
FIG. 6 is an enlarged view of portion B of FIG. 4 in accordance with the present invention;
FIG. 7 is a cross-sectional view taken along plane C-C of FIG. 6 in accordance with the present invention;
FIG. 8 is a schematic view of the structure of the side dust shield of the present invention;
shown in the figure:
1. the device comprises a sleeve, 2, a connecting rod, 3, a lateral baffle, 4, a sliding frame, 5, a return spring, 6, a spring limiting ring, 7, a traction rope, 8, a frustum-shaped fixing plug, 9, a slideway, 10, a baffle supporting sliding frame, 11, a peeping instrument probe, 12, a fixing table, 13 and a ball.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.
As shown in figures 1 to 8, the slidable large-stroke mining peeping instrument anti-fouling cap comprises a sleeve 1 and a plurality of lateral baffles 3 distributed along the circumferential direction of the sleeve 1, the sleeve 1 is a pipe, the probe 11 of the peeping instrument penetrates through the sleeve 1 and extends out of one end of the sleeve 1, the other end of the sleeve 1 is provided with a frustum-shaped fixed plug 8, a round hole is arranged in the middle of the frustum-shaped fixed plug 8, a push rod of the peeping instrument is inserted into the round hole, thereby fix the push rod of appearance of peeping in sleeve 1, frustum shape fixed stopper 8 comprises two lamella fixed stoppers, is equipped with the semicircle orifice on the fixed stopper, and two semicircle orifices enclose into the round hole of frustum shape fixed stopper 8, overlaps the fixed stopper of two lamella area semicircle orifices on the appearance push rod of peeping during the use, promotes fixed stopper along the push rod, makes two lamella fixed stoppers insert in sleeve 1 to fix the push rod of appearance of peeping in sleeve 1 suitable position.
The number of the lateral baffles 3 is 6, and the lateral baffles 3 are triangular. 6 side direction baffle 3 constitute conical safety cover, peep appearance probe 11 and lie in the safety cover, play the guard action to peeping the appearance probe, the upper and lower both ends of side direction baffle 3 are located 1 orificial upper and lower both sides of sleeve respectively, and orificial upside of sleeve 1 indicates keeps away from orificial direction.
The sleeve 1 is provided with baffle supporting sliding frames 10 with the same number as the lateral baffles 3, the baffle supporting sliding frames are fixedly connected with the sleeve 1, the end part of the sleeve 1 is fixedly connected with an annular fixed table, the outer diameter of the fixed table 12 is larger than that of the sleeve 1, the inner diameter of the fixed table 12 is equal to that of the sleeve 1, and the baffle supporting sliding frames 10 are fixedly connected on the fixed table 12.
The lateral baffle 3 is connected to the baffle support sliding frame 10 in a sliding mode, the lateral baffle 3 can rotate around the baffle support sliding frame, a slide way 9 is vertically formed in the inner side face of the lateral baffle 3, a round shaft connected in the slide way 9 in a sliding mode is arranged on the baffle support sliding frame 10, balls 13 are mounted at two ends of the round shaft and roll in the slide way 9, friction force can be reduced, the lateral baffle 3 can rotate around the round shaft, and the round shaft is perpendicular to the axis of the sleeve 1.
The device also comprises a driving device for driving the lateral baffle 3 to open and close. Drive arrangement establishes balladeur train 4 on sleeve 1 and connecting rod 2 the same with 3 quantity of side direction baffle including the cover, and the both ends of connecting rod 2 are articulated with balladeur train 4 and side direction baffle 3 respectively, and the upper end of connecting rod 2 is articulated with the lower extreme of side direction baffle 3, and the lower extreme of connecting rod 2 is articulated with balladeur train 4, and the distance of connecting rod 2 upper end pin joint apart from sleeve 1 is greater than the distance of connecting rod 2 lower extreme pin joint apart from sleeve 1.
The driving device further comprises a traction rope 7 connected with the sliding frame 4, a spring limiting ring 6 fixed on the outer circumferential surface of the sleeve 1 and a reset spring 5 sleeved on the outer circumferential surface of the sleeve 1, and the outer diameter of the spring limiting ring 6 is larger than that of the reset spring 5. The spring spacing collar 6 is located the balladeur train 4 and keeps away from one side of looking the appearance probe, and reset spring 5's both ends are supported respectively on spring spacing collar 6 and balladeur train 4.
The use method of the invention comprises the following steps:
the sleeve 1 with the peeping instrument is inserted into the drill hole, and the peeping instrument probe is protected through the protective cover.
After the probe position is reached, the traction rope 7 is pulled, the sliding frame 4 is driven to move downwards through the traction rope 7, the connecting rod 2 is pulled through the sliding frame 4, the connecting rod 2 drives the lateral baffle 3 to rotate around the baffle supporting sliding frame 10, the lateral baffle 3 is driven to be pulled downwards along the baffle supporting sliding frame 10, the lateral baffle 3 slides to the position below the probe 11 of the peeping instrument, and the probe 11 of the peeping instrument is exposed.
And detecting the inside of the drill hole by a peeping instrument.
After the detection is finished, the traction rope 7 is loosened, the sliding frame 4 is pushed to move upwards through the reset spring 5, the connecting rod 2 is pushed through the sliding frame 4, the connecting rod 2 drives the lateral baffle 3 to move upwards, the lateral baffle 3 rotates around the baffle supporting sliding frame 10, and the lateral baffle 3 surrounds the outer side of the probe 11 of the peeping instrument to form a protective cover.
The sleeve 1 with the scope is pulled out of the borehole.
Of course, the above description is not limited to the above examples, and the undescribed technical features of the present invention can be implemented by or using the prior art, and will not be described herein again; the above embodiments and drawings are only for illustrating the technical solutions of the present invention and not for limiting the present invention, and the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that changes, modifications, additions or substitutions within the spirit and scope of the present invention may be made by those skilled in the art without departing from the spirit of the present invention, and shall also fall within the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a mining appearance antifouling cap of peeping of long stroke that can slide which characterized in that: the peeping device comprises a sleeve (1) and a plurality of lateral baffles (3) distributed along the circumferential direction of the sleeve (1), wherein a peeping instrument probe (11) penetrates through the sleeve (1) and extends out of one end of the sleeve (1), the lateral baffles (3) form a protective cover for protecting the peeping instrument probe (11), baffle supporting sliding frames (10) with the same number as the lateral baffles (3) are arranged on the sleeve (1), the lateral baffles (3) are in sliding connection with the baffle supporting sliding frames (10), the lateral baffles (3) can rotate around the baffle supporting sliding frames (10), and the peeping device further comprises a driving device for driving the lateral baffles (3) to open and close; drive arrangement establishes balladeur train (4) on sleeve (1) and connecting rod (2) the same with side direction baffle (3) quantity including the cover, and connecting rod (2) are articulated with balladeur train (4) and side direction baffle (3) respectively, drive arrangement still includes draw gear who is connected with balladeur train (4), fixes stop device on sleeve (1) outer periphery and establishes reset spring (5) on sleeve (1) outer periphery, and stop device is located one side that peep the appearance probe is kept away from in balladeur train (4), and the both ends of reset spring (5) are pushed up respectively on stop device and balladeur train (4).
2. The anti-fouling cap of the slidable large-stroke mining speculum according to claim 1, characterized in that: the inner side surface of the lateral baffle (3) is vertically provided with a slideway (9), and a baffle supporting sliding frame (10) is provided with a circular shaft which is in sliding connection with the slideway (9).
3. The anti-fouling cap of the slidable large-stroke mining speculum according to claim 1, characterized in that: the number of the lateral baffles (3) is 6.
4. The anti-fouling cap of the slidable large-stroke mining speculum according to claim 1, characterized in that: the lateral baffle (3) is triangular.
5. The anti-fouling cap of the slidable large-stroke mining speculum according to claim 1, characterized in that: the baffle supporting sliding frame (10) is fixedly connected with the sleeve (1).
6. The anti-fouling cap of the slidable large-stroke mining speculum according to claim 5, wherein: the end part of the sleeve (1) is fixedly connected with an annular fixed table (12), and the baffle supporting sliding frame (10) is fixedly connected on the fixed table.
7. The anti-fouling cap of the slidable large-stroke mining speculum according to claim 1, characterized in that: the traction device is a traction rope (7).
8. The anti-fouling cap of the slidable large-stroke mining speculum according to claim 1, characterized in that: the limiting device is an annular spring limiting ring (6), and the outer diameter of the spring limiting ring (6) is larger than that of the reset spring (5).
9. The anti-fouling cap of the slidable large-stroke mining speculum according to claim 1, characterized in that: the upper end and the lower end of the lateral baffle (3) are respectively positioned at the upper side and the lower side of the pipe orifice of the sleeve (1).
10. A use method of a slidable large-stroke mining peeping instrument anti-fouling cap is characterized by comprising the following steps:
a. the sleeve (1) with the peeping instrument is inserted into the drill hole, and the peeping instrument probe (11) is protected by the protective cover;
b. after the probe position is reached, pulling a traction rope (7), driving a sliding frame (4) to move downwards through the traction rope (7), pulling a connecting rod (2) through the sliding frame (4), driving a lateral baffle (3) to rotate around a baffle support sliding frame (10) through the connecting rod (2), and driving the lateral baffle (3) to pull downwards along the baffle support sliding frame (10), so that the lateral baffle (3) slides to the position below a probe (11) of a peeping instrument, and exposing the probe (11) of the peeping instrument;
c. detecting the inside of the drill hole through a peeping instrument;
d. after detection is finished, the traction rope (7) is loosened, the sliding frame (4) is pushed to move upwards through the reset spring (5), the connecting rod (2) is pushed through the sliding frame (4), the connecting rod (2) drives the lateral baffle (3) to move upwards, the lateral baffle (3) rotates around the baffle supporting sliding frame (10), and the lateral baffle (3) surrounds the outer side of the probe (11) of the peeping instrument to form a protective cover;
e. the sleeve (1) with the speculum is pulled out of the borehole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010005722.1A CN111119854B (en) | 2020-01-03 | 2020-01-03 | Slidable large-stroke mining peeping instrument anti-fouling cap and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010005722.1A CN111119854B (en) | 2020-01-03 | 2020-01-03 | Slidable large-stroke mining peeping instrument anti-fouling cap and using method thereof |
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| Publication Number | Publication Date |
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| CN111119854A true CN111119854A (en) | 2020-05-08 |
| CN111119854B CN111119854B (en) | 2023-04-18 |
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| CN202010005722.1A Active CN111119854B (en) | 2020-01-03 | 2020-01-03 | Slidable large-stroke mining peeping instrument anti-fouling cap and using method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113075213A (en) * | 2021-04-12 | 2021-07-06 | 成都理工大学 | Carbonate secondary pore composition detection protection device |
| CN114325272A (en) * | 2022-01-06 | 2022-04-12 | 浙江迪思威电气股份有限公司 | On-line partial discharge detection device for switch cabinet |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040216920A1 (en) * | 2002-11-01 | 2004-11-04 | Clark Don T. | Visual probes and methods for placing visual probes into subsurface areas |
| CN106595902A (en) * | 2016-12-07 | 2017-04-26 | 四川秋明山测绘有限公司 | Apparatus for measuring rock temperature |
| CN106761684A (en) * | 2015-11-22 | 2017-05-31 | 天津大港油田圣达科技有限公司 | A kind of downhole detector probe assisting device |
| CN107687334A (en) * | 2016-08-05 | 2018-02-13 | 天津大港油田圣达科技有限公司 | A kind of closed logging instrument probe protective case |
| CN209586358U (en) * | 2019-01-31 | 2019-11-05 | 西安科技大学 | Middle device is set in a kind of protection of mining drilling endoscope |
-
2020
- 2020-01-03 CN CN202010005722.1A patent/CN111119854B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040216920A1 (en) * | 2002-11-01 | 2004-11-04 | Clark Don T. | Visual probes and methods for placing visual probes into subsurface areas |
| CN106761684A (en) * | 2015-11-22 | 2017-05-31 | 天津大港油田圣达科技有限公司 | A kind of downhole detector probe assisting device |
| CN107687334A (en) * | 2016-08-05 | 2018-02-13 | 天津大港油田圣达科技有限公司 | A kind of closed logging instrument probe protective case |
| CN106595902A (en) * | 2016-12-07 | 2017-04-26 | 四川秋明山测绘有限公司 | Apparatus for measuring rock temperature |
| CN209586358U (en) * | 2019-01-31 | 2019-11-05 | 西安科技大学 | Middle device is set in a kind of protection of mining drilling endoscope |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113075213A (en) * | 2021-04-12 | 2021-07-06 | 成都理工大学 | Carbonate secondary pore composition detection protection device |
| CN114325272A (en) * | 2022-01-06 | 2022-04-12 | 浙江迪思威电气股份有限公司 | On-line partial discharge detection device for switch cabinet |
| CN114325272B (en) * | 2022-01-06 | 2023-08-04 | 浙江迪思威电气股份有限公司 | Online partial discharge detection device of switch cabinet |
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