CN210464295U

CN210464295U - Height measuring device

Info

Publication number: CN210464295U
Application number: CN201921857182.9U
Authority: CN
Inventors: 张建强; 黄少青; 宁树正
Original assignee: General Survey and Research Institute of China Coal Geology Bureau
Current assignee: General Survey and Research Institute of China Coal Geology Bureau
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-05-05
Anticipated expiration: 2029-10-31

Abstract

The utility model relates to a coal petrography sample acquisition technical field discloses a height measuring device, include: the measuring tape comprises a measuring tape and a telescopic pipe body, wherein the measuring tape is fixed at the bottom end inside the telescopic pipe body, the end part of the measuring tape is connected with the top of the telescopic pipe body in an extending state, an observation window used for observing the scale of the measuring tape is arranged on the surface of the telescopic pipe body, and the position of the observation window is opposite to that of the measuring tape. The embodiment of the utility model provides a mode through the built-in tape measure of scalable body, during the flexible state of adjustment scalable body, the tape measure moves thereupon for the top of scalable body is with high with the sampling position, and the height of measurable tape measure position to sampling position. Through utilizing the height measurement device of this embodiment, can realize the vertical position measurement of the sample more than 2.5 meters apart from coal face or tunnel bottom, and measurement accuracy is high, easy operation.

Description

Height measuring device

Technical Field

The utility model relates to a coal petrography sample acquisition technical field especially relates to a height measurement device.

Background

The coal petrography coal sample is mainly used for coal petrography research, and analysis of lithofacies composition, coalification degree, constant and trace element content change of coal on a coal bed in a vertical direction is an important means for researching the coal bed cause and evolution in a certain area, so that the coal petrography coal sample sampling vertical position is accurately determined, and the foundation for further researching the coal bed cause and evolution is provided. The vertical position of the coal rock sample refers to the distance between the sample sampling position and the top plate or the bottom plate of the coal bed, the working face or the roadway bottom in coal bed mining is generally the bottom plate of the coal bed, and the current mechanized mining height is generally 4-6 m.

In the current underground coal rock sampling, the sampling distance from the coal face or the roadway bottom to about 2.5m (the height is about the height of a person plus the arm length) is measured by using a tape measure, and the vertical sampling position of the sample with the distance of more than 2.5m is generally estimated by visual inspection.

In actual underground sampling, because light rays are dark and the space is narrow, great illusion is often brought to people in the visual estimation of the distance, great errors of the estimation of the sampling position of the coal rock sample are caused, and deviation or errors are caused to the subsequent research results of coal seam cause and evolution.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The embodiment of the utility model provides a height measuring device to solve the great technical problem of error that exists among the prior art to the sample of position more than 2.5m mainly relies on the range finding of range estimation to bring.

(II) technical scheme

In order to solve the technical problem, an embodiment of the utility model provides a height measuring device, include: the measuring tape comprises a measuring tape and a telescopic pipe body, wherein the measuring tape is fixed at the bottom end inside the telescopic pipe body, the end part of the measuring tape is connected with the top of the telescopic pipe body in an extending state, an observation window used for observing the scale of the measuring tape is arranged on the surface of the telescopic pipe body, and the position of the observation window is opposite to that of the measuring tape.

The telescopic pipe body comprises a sliding mechanism and a plurality of hollow sleeves which are sequentially nested together, and the hollow sleeves are connected through the sliding mechanism respectively.

The sliding mechanism comprises a slide way and a slide block, the inner side wall of the hollow sleeve on the outer layer of the nested structure is provided with the slide way along the axial direction, the outer side wall of the hollow sleeve on the inner layer of the nested structure is provided with the slide block, and the slide block is connected with the slide way in a sliding manner.

The slide way comprises a first arc-shaped groove and a second arc-shaped groove, the first arc-shaped groove is axially arranged in the slide way, the slide block comprises a ball and an elastic piece, the ball is fixed on the outer side wall of the hollow sleeve in the inner layer of the nested structure through an elastic body, and the ball is compressed and slidably arranged in the first arc-shaped groove and can be pushed into and pulled out of the second arc-shaped groove.

Wherein, the elastic part is a spiral spring, an arc reed or a rubber spring.

The sliding block further comprises a cylinder, the ball is arranged at one end of the cylinder, and the elastic piece is arranged at the other end of the cylinder.

And a baffle plate used for blocking the balls is arranged in the first arc-shaped groove and above the second arc-shaped groove.

The number of the hollow sleeves ranges from 3 to 6, and the length of each hollow sleeve ranges from 0.4 to 0.6 m.

The measuring tape comprises a shaft rod, a coil spring wound on the shaft rod and a graduated scale wound on the coil spring, the shaft rod is rotatably arranged at the bottom end inside the telescopic pipe body, one end of the graduated scale is connected to the shaft rod through the coil spring, and the other end of the graduated scale is connected with the top of the telescopic pipe body in an extending state.

The measuring tape further comprises a sleeve, the sleeve is rotatably sleeved between the coil spring and the graduated scale, the coil spring is connected with the inner side wall of the sleeve, and the graduated scale is connected with the outer side wall of the sleeve.

(III) advantageous effects

The embodiment of the utility model provides a pair of height measuring device, through the mode of the built-in tape measure of scalable body, during the expansion and contraction state of adjustment scalable body, the tape measure moves thereupon for the top of scalable body is with high with the sampling position, and the height of sampling position is put to measurable tape measure. Through utilizing the height measurement device of this embodiment, can realize the vertical position measurement of the sample more than 2.5 meters apart from coal face or tunnel bottom, and measurement accuracy is high, easy operation.

Drawings

Fig. 1 is a schematic structural diagram of a height measuring device according to an embodiment of the present invention;

fig. 2 is a schematic view of a partial longitudinal section of a height measuring device according to an embodiment of the present invention;

FIG. 3 is a partial schematic view of A in FIG. 1;

FIG. 4 is a schematic view of a tape measure according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a slider according to an embodiment of the present invention;

fig. 6 is a schematic longitudinal sectional view of a slide according to an embodiment of the present invention.

Reference numerals:

1: a tape measure; 11: a shaft lever; 12: a coil spring; 13: a graduated scale; 14: a sleeve; 15: a roller; 2: a telescopic tube body; 3: a sliding mechanism; 31: a slider; 311: a ball bearing; 312: an elastic member; 313: a cylinder; 32: a slideway; 321: a first arc-shaped slot; 322: a second arc-shaped slot; 4: a hollow sleeve; 41: a first sleeve; 42: a second sleeve; 43: a third sleeve; 44: a fourth sleeve; 5: a baffle plate; 6: and (4) an observation window.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 6, the embodiment of the utility model discloses a height measuring device, include: the measuring tape comprises a measuring tape 1 and a telescopic pipe body 2, wherein the measuring tape 1 is fixed at the bottom end inside the telescopic pipe body 2, the end part of the measuring tape 1 is connected with the top of the telescopic pipe body 2 in an extending state, an observation window 6 used for observing scales of the measuring tape 1 is arranged on the surface of the telescopic pipe body 2, and the position of the observation window 6 is opposite to that of the measuring tape 1.

As shown in fig. 1, the retractable tube body 2 in this embodiment is hollow, the tape measure 1 is placed inside the retractable tube body 2, the height of the retractable tube body 2 can be adjusted at will and kept at the height, and during the extension and retraction of the retractable tube body 2, the tape measure 1 moves along with the telescopic tube body, and an operator can observe the indication number of the tape measure 1 through the observation window 6.

Further, the observation window 6 in this embodiment is made of organic glass.

The telescopic state of the telescopic pipe body 2 can be manually controlled in the embodiment, so that the top of the telescopic pipe body 2 is as high as the sampling position, the reading of the tape measure 1 at the moment can be observed through the observation window 6, and the reading at the moment is the height from the tape measure 1 to the sampling position. If the height of the height measuring device cannot reach the height between the coal seam floor and the sampling position, the distance from the position of the observation window 6 (namely the tape measure 1) to the roadway (working surface) floor (coal seam floor) can be measured by using the tape measure, and the distance between the sampling position and the coal seam floor can be obtained by adding readings of the tape measure and the tape measure 1.

The embodiment of the utility model provides a pair of height measuring device, through the mode of the 2 built-in tape measures 1 of scalable body, during the flexible state of the 2 scalable bodies of adjustment, tape measure 1 moves along with it for the top and the sampling position of scalable body 2 are with high, and the height of 1 position of measurable tape measure to sampling position. Through utilizing the height measurement device of this embodiment, can realize the vertical position measurement of the sample more than 2.5 meters apart from coal face or tunnel bottom, and measurement accuracy is high, easy operation.

Wherein, scalable body 2 includes glide machanism 3 and a plurality of hollow sleeve 4 nested in proper order together, and a plurality of hollow sleeve 4 are connected through glide machanism 3 respectively. The hollow sleeve 4 in this embodiment is a metal tube with the characteristics of thin wall, hollow and hard, etc., and the diameter of the hollow sleeve 4 at the outer layer of the nested structure is slightly larger than that of the hollow sleeve 4 at the inner layer of the nested structure.

As shown in fig. 3, the sliding mechanism 3 includes a slide way 32 and a slide block 31, the slide way 32 is axially disposed on the inner side wall of the hollow casing 4 at the outer layer of the nested structure, the slide block 31 is disposed on the outer side wall of the hollow casing 4 at the inner layer of the nested structure, and the slide block 31 is slidably connected with the slide way 32. Specifically, the slider 31 is provided at the bottom of the outer side wall of the hollow sleeve 4. The sliding mechanism 3 in this embodiment adopts a sliding fit manner of the slide rail 32 and the slide block 31 to realize that the hollow sleeve 4 in the nested structure can move up and down. It is worth noting that: the terms "inner" and "outer" in this embodiment are relative terms and may be either inner or outer in a nested configuration for different hollow sleeves 4, for example, as shown in fig. 1, the hollow sleeve 4 includes a first sleeve 41, a second sleeve 42, a third sleeve 43 and a fourth sleeve 44, the third sleeve 43 being outer in a nested configuration relative to the fourth sleeve 44 and inner in a nested configuration relative to the second sleeve 42.

As shown in fig. 5 and 6, the slide way 32 includes a first arc-shaped groove 321 arranged along the axial direction and a second arc-shaped groove 322 arranged in the first arc-shaped groove 321, the slide block 31 includes a ball 311 and an elastic member 312, the ball 311 is fixed on the outer side wall of the hollow sleeve 4 in the inner layer of the nested structure through the elastic member 312, so that the ball 311 is tightly pressed and slidably arranged in the first arc-shaped groove 321 and can be pushed into and pulled out of the second arc-shaped groove 322. The elastic member 312 in this embodiment provides a pressing force to the slider 31, so that the ball 311 is pressed and slidably disposed in the first arc-shaped groove 321, when the ball 311 moves into the second arc-shaped groove 322, due to the pushing force provided by the elastic member 312 and directed toward the first arc-shaped groove 321, the ball 311 is pushed into the second arc-shaped groove 322 and locked in a clamping manner, so that the hollow sleeve 4 located at the inner layer and the hollow sleeve 4 located at the outer layer have no vertical relative displacement, and an operator moves the hollow sleeve 4 with force, so that the ball 311 can be disengaged from the second arc-shaped groove 322 and enter the first arc-shaped groove 321, and at this time, the hollow sleeve 4 located at the inner layer and the hollow sleeve 4 located at the outer layer can realize vertical relative displacement through the. Specifically, in order to realize that the ball 311 can slide or roll in the first arc-shaped groove 321, it is necessary to ensure that the first arc-shaped groove 321 has the same size as the ball 311, so that the ball 311 is embedded in the first arc-shaped groove 321; in order to realize that the ball 311 can be smoothly pushed into the second arc-shaped groove 322 from the first arc-shaped groove 321 and the ball 311 can be pulled out of the second arc-shaped groove 322 and enter the first arc-shaped groove 321 by pushing the hollow sleeve 4, the radian of the second arc-shaped groove 322 must be less than pi, and the radian of the second arc-shaped groove 322 preferably ranges from pi/6 to 2 pi/3. Further, the first arc-shaped grooves 321 are respectively arranged at least at the left side and the right side of the hollow sleeve 4 to be used as tracks for the movement of the balls 311; at least one second arc-shaped groove 322 is provided on the first arc-shaped groove 321 for temporarily locking the ball. As shown in fig. 6, only the upper half of the first arc-shaped groove 321 is provided with a second arc-shaped groove 322, and when the ball 311 slides into the second arc-shaped groove 322, the ball can be inserted into the second arc-shaped groove to provide a locking effect, and in this case, only the locking effect at the position of the second arc-shaped groove 322 can be provided, and a measuring tape is generally matched with a measuring tape to measure the distance from the measuring tape 1 to the coal seam floor. If set up a plurality of second arc wall 322, can realize the locking action of this scalable body's multiple height specification, if the high enough height of scalable body 2 and second arc wall 322 set up enough a plurality ofly, can not use the tape measure in theory.

Preferably, the elastic member 312 is a coil spring, an arc-shaped reed, or a rubber spring. As shown in fig. 5, the arc-shaped spring plate is adopted as the elastic member 312 in this embodiment to provide the thrust force for the ball 311 to press and slidably set in the first arc-shaped groove 321.

As shown in fig. 5, the slider 31 further includes a cylinder 313, the ball 311 is disposed at one end of the cylinder 313, and the elastic element 312 is disposed at the other end of the cylinder 313. The column 313 in this embodiment is a mounting structure, and the balls 311 and the elastic member 312 are fixed to both ends of the column 313.

Wherein, in first arc wall 321 and be located the top of second arc wall 322 and be equipped with the baffle 5 that is used for blockking ball 311, avoid ball 311 to deviate from in the sliding process in first arc wall 321 and lead to the condition that hollow sleeve 4 separates.

Wherein, the number of the hollow sleeves 4 ranges from 3 to 6, and the length of each hollow sleeve 4 ranges from 0.4 to 0.6 m. If the height of the telescopic tube body 2 composed of the hollow sleeve 4 in the embodiment is not enough, the top end of the telescopic tube body 2 is lifted to the same height as the sampling position, and the lower part of the telescopic tube body 2 measures the distance between the tape measure 1 and the coal seam floor by using a tape measure.

As shown in fig. 4, the tape measure 1 includes a shaft 11, a coil spring 12 wound around the shaft 11, and a scale 13 wound around the coil spring 12, the shaft 11 is rotatably disposed at the bottom end inside the telescopic tube, one end of the scale 13 is connected to the shaft 11 through the coil spring 12, and the other end of the scale 13 is connected to the top of the telescopic tube 2 in an extended state. Specifically, the end of the scale 13 connected to the top of the telescopic tube 2 is provided with a roller 15, so that the tape measure 1 can be smoothly pulled out. In the embodiment, when the telescopic pipe body 2 is adjusted to be in the extension state, the tape measure 1 can be rotatably arranged at the bottom of the telescopic pipe body through the shaft lever 11, the graduated scale 13 is pulled out along with the tape measure 1 in the extension process, and an operator can observe the number of the graduated scale 13 from the observation window 6; when the telescopic tube body 2 is in the retracted state, the tape measure 1 is retracted by the coil spring 12.

The measuring tape 1 further comprises a sleeve 14, the sleeve 14 is rotatably sleeved between the coil spring 12 and the graduated scale 13, the coil spring 12 is connected with the inner side wall of the sleeve 14, and the graduated scale 13 is connected with the outer side wall of the sleeve 14. The coil spring 12 and the scale 13 are connected by a spool 14 in this embodiment.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A height measuring device, comprising: the measuring tape comprises a measuring tape and a telescopic pipe body, wherein the measuring tape is fixed at the bottom end inside the telescopic pipe body, the end part of the measuring tape is connected with the top of the telescopic pipe body in an extending state, an observation window used for observing the scale of the measuring tape is arranged on the surface of the telescopic pipe body, and the position of the observation window is opposite to that of the measuring tape.

2. The height measuring device of claim 1, wherein the retractable tube body comprises a sliding mechanism and a plurality of hollow sleeves nested together in sequence, and the plurality of hollow sleeves are respectively connected through the sliding mechanism.

3. The height measuring device according to claim 2, wherein the sliding mechanism comprises a slide way and a slide block, the slide way is axially arranged on the inner side wall of the hollow sleeve on the outer layer of the nested structure, the slide block is arranged on the outer side wall of the hollow sleeve on the inner layer of the nested structure, and the slide block is connected with the slide way in a sliding manner.

4. The height measuring device according to claim 3, wherein the slide way comprises a first arc-shaped groove arranged along the axial direction and a second arc-shaped groove arranged in the first arc-shaped groove, the slide block comprises a ball and an elastic piece, the ball is fixed on the outer side wall of the hollow sleeve in the inner layer of the nested structure through an elastic body, and the ball is tightly pressed and slidably arranged in the first arc-shaped groove and can be pushed into and pulled out of the second arc-shaped groove.

5. The height measuring device of claim 4, wherein the elastic member is a coil spring, an arc-shaped spring or a rubber spring.

6. The height measuring device of claim 4, wherein the slider further comprises a cylinder, the ball is disposed at one end of the cylinder, and the elastic member is disposed at the other end of the cylinder.

7. The height measuring device of claim 4, wherein a baffle for blocking the ball is disposed within the first arcuate slot and above the second arcuate slot.

8. The height measuring device of any one of claims 2 to 7, wherein the number of hollow sleeves ranges from 3 to 6, and the length of each hollow sleeve ranges from 0.4 to 0.6 m.

9. The height measuring device of claim 1, wherein the tape measure comprises a shaft, a coil spring wound around the shaft, and a scale wound around the coil spring, the shaft is rotatably disposed at a bottom end inside the telescopic tube, one end of the scale is connected to the shaft via the coil spring, and the other end of the scale is connected to a top portion of the telescopic tube in an extended state.

10. The height measuring device of claim 9, wherein the tape measure further comprises a sleeve rotatably disposed between the coil spring and the scale, the coil spring being connected to an inner sidewall of the sleeve, and the scale being connected to an outer sidewall of the sleeve.