CN104034304A - Laser ranger fixing device - Google Patents
Laser ranger fixing device Download PDFInfo
- Publication number
- CN104034304A CN104034304A CN201410224586.XA CN201410224586A CN104034304A CN 104034304 A CN104034304 A CN 104034304A CN 201410224586 A CN201410224586 A CN 201410224586A CN 104034304 A CN104034304 A CN 104034304A
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- China
- Prior art keywords
- range finder
- laser range
- running casing
- flange
- sleeve
- Prior art date
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C3/00—Measuring distances in line of sight; Optical rangefinders
- G01C3/02—Details
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Mechanical Engineering (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a laser ranger fixing device. A pin shaft is fixed on the lower part of a pull rod in an upper sleeve; two ends of the pin shaft respectively penetrate through strip-type slots in the wall of the upper sleeve and are respectively fixed in mounting holes in the side wall corresponding to a sliding sleeve; an upper pipe orifice of a lower sleeve and a connection flange at a lower pipe orifice of the upper sleeve are fixed; the connection flange is connected with the sliding sleeve through a tension spring; two supporting components are at least arranged at the periphery of the lower sleeve; at least two connection rods are arranged between a supporting rod in each supporting component and the lower sleeve; two ends of each connection rod are respectively hinged with supporting lugs on the inner side of the corresponding supporting rod or on the outer wall of the lower sleeve; the two ends of a linking rod are respectively hinged with supporting lugs of the uppermost connection rod or on the lower part of the outer wall of the sliding sleeve; a laser ranger is mounted in the lower sleeve through a laser ranger mounting component on the lower sleeve. According to the laser ranger fixing device, the laser ranger can be fixed in a gun hole, and the axial line of the laser ranger is parallel to the axial line of the lower sleeve, so that the depth of the gun hole can be precisely measured.
Description
Technical field
The present invention relates to a kind of laser range finder stationary installation, be specifically related to a kind ofly for device, laser range finder is fixed in big gun hole, and be used for measuring the degree of depth in big gun hole.
Background technology
Traditional blast hole is the common big gun hole of underground mine explosion, and its diameter is generally 76mm-200mm, and the degree of depth is at 5m-25m.Measuring blast hole depth is one important procedure before mine blasting, and each mine has tens thousand of big guns hole to need to measure every year, and workload is very heavy.
At present, for accurately measuring blast hole depth, generally adopt tape measure directly to measure blast hole depth, but because the number of the boring hole is many, thereby the problems such as artificial amount is large, length consuming time caused.And more advanced measuring technique is subject to many effects limit now, the particularly restriction of the specific factor in big gun hole own, can't realize simple measurement the fast to big gun hole real depth under many circumstances, therefore needs new possible technique to solve this problem.
In order to measure quickly and accurately blast hole depth, we expect adopting laser range finder to measure.In order to guarantee the measuring accuracy of laser range finder, the axial line of laser range finder need to the axial line keeping parallelism in big gun hole, and this cannot guarantee by Hand-hold Distance Finder, therefore must design a kind of stationary installation laser range finder is fixed in big gun hole, and make laser range finder axial line need to the axial line keeping parallelism in big gun hole.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of laser range finder stationary installation, and wish is fixed on laser range finder in big gun hole by this device, and makes the axial line of laser range finder and the axis parallel in big gun hole.
Technical scheme of the present invention is as follows: a kind of laser range finder stationary installation, it is characterized in that: comprise pull bar (1), running casing (5) and laser range finder installation component, wherein pull bar (1) bottom is inserted in sleeve pipe (2), the lower vertical of this pull bar is fixed with a bearing pin (3), the two ends of this root bearing pin are respectively through after the bar-shaped trough of axially offering on upper sleeve pipe (2) tube wall, fix with the mounting hole on the corresponding sidewall of sliding sleeve (4) respectively, and sliding sleeve (4) kink is outside upper sleeve pipe (2); The axial line of the axial line of described running casing (5) and upper sleeve pipe (2) is on same straight line, the joint flange (6) at this cased upper orifice and upper sleeve pipe (2) lower nozzle place is fixing, and joint flange (6) is connected with described sliding sleeve (4) lower end by an extension spring (7), and extension spring (7) is sleeved on outside sleeve pipe (2);
Described running casing (5) periphery is at least provided with two supporting components, each supporting component comprises support bar (8) and connecting link (10), wherein the number of support bar (8) is one, the axial line of this support bar all the time with running casing (5) axis parallel; Between described support bar (8) and running casing (5), be provided with vertically at least two connecting rods (9), the journal stirrup of one end of each connecting rod (9) and support bar (8) inner side is hinged, and the journal stirrup on the other end of each connecting rod (9) and running casing (5) outer wall is hinged; One end of described connecting link (10) is hinged with the journal stirrup on a connecting rod (9) top, the top, and the journal stirrup of the other end of this connecting link and described sliding sleeve (4) outer wall bottom is hinged; When described pull bar (1) is pulled upward, drives sliding sleeve (4) upper mobile, thereby drive the support bar (8) in each supporting component synchronous near described running casing (5);
Described laser range finder installation component is installed on running casing (5), this laser range finder installation component is arranged on laser range finder (12) in running casing (5), and can guarantee the axial line of laser range finder (12) and the axis parallel of running casing (5).
When described pull bar (1) is pulled upward, drive sliding sleeve (4) upper mobile, thereby drive the support bar (8) in each supporting component synchronous near described running casing (5), at this moment support bar (8) can disengage with the inwall in big gun hole, thereby this device is taken out in big gun hole; When described pull bar 1 is decontroled, described sliding sleeve (4) moves down reset under the effect of extension spring (7), thereby make support bar (8) in each supporting component synchronously away from described running casing (5), at this moment support bar (8) can contact with the inwall in big gun hole, thereby this device is fixed in big gun hole.Because laser range finder (12) is arranged in running casing (5) by laser range finder installation component, and can guarantee the axial line of laser range finder (12) and the axis parallel of running casing (5), so just can guarantee well work and the measuring accuracy of laser range finder (12), thereby accurately measure blast hole depth.
Adopt above technical scheme, the present invention can be fixed on laser range finder (12) in big gun hole quickly and easily, and can guarantee the axial line of laser range finder (12) and the axis parallel of running casing (5), so just can guarantee well work and the measuring accuracy of laser range finder (12), thereby accurately measure blast hole depth, and whole measuring process is convenient and swift, overcome well traditional by tape measure mode precision not high and inefficient defect, and this stationary installation is simple in structure, be easy to manufacture, easy to carry.
As preferably, described laser range finder installation component comprises installing plate (13) and bolt group, wherein the middle part of (13) two sides of installing plate is bent to form after flange (13a) towards same direction, then by being relatively bent to form spacing flange (13b); Described laser range finder (12) is positioned between two flange (13a), and is fixed on installing plate (13) by two spacing flange (13b) are spacing;
The number of described bolt group is four, each bolt group comprises at least two bolts (14), wherein the bolt (14) in two bolt groups is through after corresponding nut (15), connect with the described flange (13a) of corresponding side respectively, bolt (14) in two other bolt group is through after corresponding nut (15), respectively with the respective plate face butt of described installing plate (13), and all nuts (15) are all installed on described running casing (5) outer wall, thereby cooperatively interact to regulate the position of described laser range finder (12) in running casing (5) by these four bolt groups.
Adopt above structure, the present invention can adjust the degree of depth that is screwed into of bolt (14) in each bolt group easily, thereby cooperatively interact to regulate the position of described laser range finder (12) in running casing (5) by four bolt groups, so just can guarantee well the duty of laser range finder (12), thereby guarantee the measuring accuracy of laser range finder (12), and this installation component simple in structure, be easy to manufacture, and easy to adjust laborsaving.In addition, the concrete structure of described laser range finder installation component is not limited to the structure described in the present embodiment, during Practical manufacturing, can select according to actual conditions the laser range finder installation component of other versions.
As optimal design, the number of described supporting component is three, and these three supporting components are along being circumferentially distributed on the periphery of described running casing (5), and each supporting component comprises three described connecting rods (9).
Adopt above structure, the number of described supporting component is moderate, it is fixing firm to prevent from because number is very few occurring, can avoid again because number too much causes that structure is too fat to move, overall weight increases, thereby reach simplified structure, reduce the object of weight and manufacturing cost.
In this case, on the tube wall of described running casing (5), have a viewport, the position of this viewport is over against described laser range finder (12), the shape of this viewport is not done concrete restriction, and operator also can point through this viewport, and then remove operation, control laser range finder (12).
As preferably, described pull bar (1) upper end is installed with a cross bar (16), and these two bars form " T " font structure, facilitate like this by holding upwards pull bar (1) of cross bar (16), easy to operate.
Beneficial effect: the present invention can be fixed on laser range finder (12) in big gun hole quickly and easily, and can guarantee the axial line of laser range finder (12) and the axis parallel of running casing (5), so just can guarantee well work and the measuring accuracy of laser range finder (12), thereby accurately measure blast hole depth, and whole measuring process is convenient and swift, overcome well traditional by tape measure mode precision not high and inefficient defect, and this stationary installation is simple in structure, be easy to manufacture, easy to carry.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the outside drawing of installing plate 13 and laser range finder 12 in Fig. 1.
Fig. 3 is that the A-A of Fig. 2 is to cut-open view.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
As shown in Fig. 1,2 and 3, a kind of laser range finder stationary installation, mainly consists of pull bar 1, upper sleeve pipe 2, bearing pin 3, sliding sleeve 4, running casing 5, joint flange 6, extension spring 7 and supporting component etc.Wherein, the upper end of described pull bar 1 is installed with a cross bar 16, and this cross bar 16 forms " T " font structure with pull bar 1.The bottom of above-mentioned pull bar 1 is inserted in sleeve pipe 2, the lower vertical of this pull bar 1 is fixed with a bearing pin 3, the two ends of this root bearing pin 3 are respectively through after the bar-shaped trough (unmarked in figure) of axially offering on upper sleeve pipe 2 tube walls, fix with the mounting hole on the corresponding sidewall of sliding sleeve 4 respectively, and sliding sleeve 4 kinks are outside upper sleeve pipe 2.
The lower nozzle place of described upper sleeve pipe 2 is coaxially fixed with a joint flange 6, between this joint flange 6 and described sliding sleeve 4, be provided with an extension spring 7, the two ends of this root extension spring 7 are fixed with corresponding joint flange 6 and sliding sleeve 4 lower ends respectively, and 7 while of extension spring kink is outside upper sleeve pipe 2.
As shown in Figure 1, described running casing 5 peripheries are at least provided with two supporting components, and in this case, the number of described supporting component is three, and these three supporting components are along being circumferentially distributed on the periphery of running casing 5.Each supporting component comprises support bar 8 and connecting link 10, and wherein the number of support bar 8 is one, the axial line of this support bar 8 all the time with running casing 5 axis parallels.Between described support bar 8 and running casing 5, be provided with vertically at least two connecting rods 9, in this case, the number of this connecting rod 9 is three.And each connecting rod 9 can be mutually arranged in a crossed manner, also can be as being arranged in parallel in this case.The journal stirrup of one end of each connecting rod 9 and support bar 8 inner sides is hinged, and the journal stirrup on the other end of each connecting rod 9 and running casing 5 outer walls is hinged.One end of described connecting link 10 is hinged with the journal stirrup on connecting rod 9 tops, the top, and the journal stirrup of the other end of this connecting link 10 and described sliding sleeve 4 outer wall bottoms is hinged.
When described pull bar 1 is pulled upward, drive on sliding sleeve 4 and move, thereby drive the support bar 8 in each supporting component synchronous near described running casing 5, at this moment support bar 8 can disengage with the inwall in big gun hole, thereby this device is taken out in big gun hole; When described pull bar 1 is decontroled, described sliding sleeve 4 moves down reset under the effect of extension spring 7, thereby makes support bar 8 in each supporting component synchronously away from described running casing 5, and at this moment support bar 8 can contact with the inwall in big gun hole, thereby this device is fixed in big gun hole.
As shown in Figure 1, 2, 3, described laser range finder installation component is installed on running casing 5, and this laser range finder installation component is arranged on laser range finder 12 in running casing 5, and can guarantee the axial line of laser range finder 12 and the axis parallel of running casing 5.
In this case, described laser range finder installation component comprises installing plate 13 and bolt group, and wherein the middle part of 13 two sides of installing plate is bent to form after flange 13a towards same direction, then by being relatively bent to form spacing flange 13b.Described laser range finder 12 is between two flange 13a, and by two spacing being fixed on installing plate 13 of spacing flange 13b.The number of described bolt group is four, and each bolt group comprises at least two bolts 14, and in this case, the number of this bolt 14 is two.
Wherein, the bolt 14 in two bolt groups, through after corresponding nut 15, connects with corresponding described flange 13a from outside respectively.Bolt in two other bolt group 14 is through after corresponding nut 15, and respectively with the respective plate face butt of described installing plate 13, and all nuts 15 are all installed on described running casing 5 outer walls.In this case, bolt 14 setting positions described in each in bolt group are not done special requirement, as long as it is just passable to reach mounting plate 13.Adopt above structure, just can adjust easily the degree of depth that is screwed into of each bolt 14 in four bolt groups, thereby cooperatively interact to regulate the position of described laser range finder 12 in running casing 5 by these four bolt groups.In addition, have a viewport on the tube wall of described running casing 5, the position of this viewport is over against described laser range finder 12.
Adopt above technical scheme, the present invention can be fixed on laser range finder 12 in big gun hole quickly and easily, and can guarantee the axial line of laser range finder 12 and the axis parallel of running casing 5, so just can guarantee well work and the measuring accuracy of laser range finder 12, thereby accurately measure blast hole depth, and whole measuring process is convenient and swift, overcome well traditional by tape measure mode precision not high and inefficient defect, and this stationary installation is simple in structure, be easy to manufacture, easy to carry.
The foregoing is only preferred embodiment of the present invention, not take the present invention as restriction, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (5)
1. a laser range finder stationary installation, it is characterized in that: comprise pull bar (1), running casing (5) and laser range finder installation component, wherein pull bar (1) bottom is inserted in sleeve pipe (2), the lower vertical of this pull bar is fixed with a bearing pin (3), the two ends of this root bearing pin are respectively through after the bar-shaped trough of axially offering on upper sleeve pipe (2) tube wall, fix with the mounting hole on the corresponding sidewall of sliding sleeve (4) respectively, and sliding sleeve (4) kink is outside upper sleeve pipe (2); The axial line of the axial line of described running casing (5) and upper sleeve pipe (2) is on same straight line, the joint flange (6) at this cased upper orifice and upper sleeve pipe (2) lower nozzle place is fixing, and joint flange (6) is connected with described sliding sleeve (4) lower end by an extension spring (7), and extension spring (7) is sleeved on outside sleeve pipe (2);
Described running casing (5) periphery is at least provided with two supporting components, each supporting component comprises support bar (8) and connecting link (10), wherein the number of support bar (8) is one, the axial line of this support bar all the time with running casing (5) axis parallel; Between described support bar (8) and running casing (5), be provided with vertically at least two connecting rods (9), the journal stirrup of one end of each connecting rod (9) and support bar (8) inner side is hinged, and the journal stirrup on the other end of each connecting rod (9) and running casing (5) outer wall is hinged; One end of described connecting link (10) is hinged with the journal stirrup on a connecting rod (9) top, the top, and the journal stirrup of the other end of this connecting link and described sliding sleeve (4) outer wall bottom is hinged; When described pull bar (1) is pulled upward, drives sliding sleeve (4) upper mobile, thereby drive the support bar (8) in each supporting component synchronous near described running casing (5);
Described laser range finder installation component is installed on running casing (5), this laser range finder installation component is arranged on laser range finder (12) in running casing (5), and can guarantee the axial line of laser range finder (12) and the axis parallel of running casing (5).
2. laser range finder stationary installation according to claim 1, it is characterized in that: described laser range finder installation component comprises installing plate (13) and bolt group, wherein the middle part of (13) two sides of installing plate is bent to form after flange (13a) towards same direction, then by being relatively bent to form spacing flange (13b); Described laser range finder (12) is positioned between two flange (13a), and is fixed on installing plate (13) by two spacing flange (13b) are spacing;
The number of described bolt group is four, each bolt group comprises at least two bolts (14), wherein the bolt (14) in two bolt groups is through after corresponding nut (15), connect with the described flange (13a) of corresponding side respectively, bolt (14) in two other bolt group is through after corresponding nut (15), respectively with the respective plate face butt of described installing plate (13), and all nuts (15) are all installed on described running casing (5) outer wall, thereby cooperatively interact to regulate the position of described laser range finder (12) in running casing (5) by these four bolt groups.
3. laser range finder stationary installation according to claim 1 and 2, it is characterized in that: the number of described supporting component is three, these three supporting components are along being circumferentially distributed on the periphery of described running casing (5), and each supporting component comprises three described connecting rods (9).
4. laser range finder stationary installation according to claim 1, is characterized in that: on the tube wall of described running casing (5), have a viewport, the position of this viewport is over against described laser range finder (12).
5. according to the laser range finder stationary installation described in claim 1 or 4, it is characterized in that: described pull bar (1) upper end is installed with a cross bar (16), these two bars form " T " font structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410224586.XA CN104034304B (en) | 2014-05-26 | 2014-05-26 | A kind of laser range finder stationary installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410224586.XA CN104034304B (en) | 2014-05-26 | 2014-05-26 | A kind of laser range finder stationary installation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104034304A true CN104034304A (en) | 2014-09-10 |
| CN104034304B CN104034304B (en) | 2016-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410224586.XA Active CN104034304B (en) | 2014-05-26 | 2014-05-26 | A kind of laser range finder stationary installation |
Country Status (1)
| Country | Link |
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| CN (1) | CN104034304B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106121632A (en) * | 2016-10-12 | 2016-11-16 | 贵州新联爆破工程集团有限公司 | A kind of device for measuring inclination angle, big gun hole and measuring method |
| CN108917634A (en) * | 2018-06-08 | 2018-11-30 | 山东安达尔信息科技有限公司 | A kind of laser rock mass measuring device of recoverable |
| CN112729227A (en) * | 2020-12-31 | 2021-04-30 | 宁波建工工程集团有限公司 | Tower crane wall-attached measurement auxiliary device and using method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000230234A (en) * | 1999-02-09 | 2000-08-22 | Nippon Steel Corp | Pipe earth measuring method in construction of open end steel pipe pile |
| JP2001174258A (en) * | 1999-12-15 | 2001-06-29 | Takahiko Aizawa | Multifunctional level gage |
| CN202024760U (en) * | 2011-04-02 | 2011-11-02 | 台州职业技术学院 | Level staff with balance bracket |
| CN102901431A (en) * | 2012-10-30 | 2013-01-30 | 武汉大学 | Drilling quality detection device and detection method of inclined blast hole |
| CN103414847A (en) * | 2013-07-30 | 2013-11-27 | 中铁隧道集团有限公司 | Geological logging instrument with feature point positioning function |
| CN203908541U (en) * | 2014-05-26 | 2014-10-29 | 葛洲坝易普力股份有限公司 | Laser range finder fixing device |
-
2014
- 2014-05-26 CN CN201410224586.XA patent/CN104034304B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000230234A (en) * | 1999-02-09 | 2000-08-22 | Nippon Steel Corp | Pipe earth measuring method in construction of open end steel pipe pile |
| JP2001174258A (en) * | 1999-12-15 | 2001-06-29 | Takahiko Aizawa | Multifunctional level gage |
| CN202024760U (en) * | 2011-04-02 | 2011-11-02 | 台州职业技术学院 | Level staff with balance bracket |
| CN102901431A (en) * | 2012-10-30 | 2013-01-30 | 武汉大学 | Drilling quality detection device and detection method of inclined blast hole |
| CN103414847A (en) * | 2013-07-30 | 2013-11-27 | 中铁隧道集团有限公司 | Geological logging instrument with feature point positioning function |
| CN203908541U (en) * | 2014-05-26 | 2014-10-29 | 葛洲坝易普力股份有限公司 | Laser range finder fixing device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106121632A (en) * | 2016-10-12 | 2016-11-16 | 贵州新联爆破工程集团有限公司 | A kind of device for measuring inclination angle, big gun hole and measuring method |
| CN108917634A (en) * | 2018-06-08 | 2018-11-30 | 山东安达尔信息科技有限公司 | A kind of laser rock mass measuring device of recoverable |
| CN112729227A (en) * | 2020-12-31 | 2021-04-30 | 宁波建工工程集团有限公司 | Tower crane wall-attached measurement auxiliary device and using method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104034304B (en) | 2016-03-02 |
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Address after: 401122 Chongqing City, the new Northern District of starlight Road No. five, No. 2 Patentee after: CHINA GEZHOUBA GROUP EXPLOSIVE CO., LTD. Address before: 400023 C1, 1406, Saturn business center, five star road, 2 North Chongqing New District Patentee before: Gezhouba Explosive Co., Ltd. |