阅读说明：本技术 一种快速测绘装置及使用方法 (Rapid mapping device and using method ) 是由 吴建芳 陈立平 朱建朝 朱汉华 干啸洪 王维国 李喜燕 李湘云 丁焕桥 杨静飘 于 2021-06-30 设计创作，主要内容包括：本发明公开了一种快速测绘装置,包括底座、伸缩测绘组件和绘图组件,其中底座固定于地面上,包括转动支座；伸缩测绘组件设置于底座上,包括与转动支座转动连接的支撑件、与支撑件滑动连接的移动件,移动件上设有传动件；绘图组件设置于伸缩测绘组件上,包括与传动件配合运动的主动件、与主动件通过传动连接件连接的从动件、与从动件配合运动的绘图支架,绘图支架上设有绘图件,主动件和从动件均与支撑件固定连接。该装置对环境和人员技术水平要求低,可以在现场场地不平整、灰尘较大,照明条件差的环境使用,方便快速的测试开挖断面的超欠挖数据,并且可以现场绘制断面曲线图。本发明作用效果显著,适于广泛推广。(The invention discloses a quick surveying and mapping device, which comprises a base, a telescopic surveying and mapping assembly and a drawing assembly, wherein the base is fixed on the ground and comprises a rotating support; the telescopic surveying and mapping assembly is arranged on the base and comprises a supporting piece rotationally connected with the rotating support and a moving piece slidably connected with the supporting piece, and a transmission piece is arranged on the moving piece; the drawing assembly is arranged on the telescopic surveying and mapping assembly and comprises a driving part, a driven part and a drawing support, wherein the driving part moves in a matched mode with the driving part, the driven part is connected with the driving part through a transmission connecting part, the drawing support moves in a matched mode with the driven part, the drawing support is provided with the drawing part, and the driving part and the driven part are fixedly connected with the supporting part. The device has low requirements on environment and personnel technical level, can be used in environments with uneven field, larger dust and poor lighting conditions, can conveniently and quickly test the over-under excavation data of the excavation section, and can draw a section curve graph on site. The invention has obvious effect and is suitable for wide popularization.)

1. A rapid surveying device, comprising:

the base (1) is fixed on the ground and comprises a rotating support (11);

the telescopic mapping assembly (2) is arranged on the base (1) and comprises a supporting piece (21) rotatably connected with the rotating support (11) and a moving piece (22) in sliding connection with the supporting piece (21), and a transmission piece (23) is arranged on the moving piece (22);

drawing subassembly (3), set up in on flexible survey and drawing subassembly (2), include with driving piece (31) of driving piece (23) cooperation motion, with driven piece (33) that driving piece (31) are connected through transmission connecting piece (32), with drawing support (34) of driven piece (33) cooperation motion, be equipped with drawing piece (4) on drawing support (34), driving piece (31) with driven piece (33) all with support piece (21) fixed connection.

2. A rapid surveying arrangement according to claim 1, characterized in that the drawing assembly (3) further comprises:

the upper fixing seat (35) is arranged between the driving part (31) and the supporting part (21), the upper fixing seat (35) is fixedly connected with the supporting part (21) and is in sliding connection with the transmission part (23), and the upper fixing seat (35) is in rotating connection with the driving part (31);

the lower fixing seat (36) is arranged between the driven piece (33) and the supporting piece (21), the lower fixing seat (36) is fixedly connected with the supporting piece (21) and is in sliding connection with the drawing support (34), and the lower fixing seat (36) is in rotating connection with the driven piece (33).

3. A rapid surveying arrangement according to claim 2, characterized in that the base (1) further comprises:

the supporting platform (12) is connected with the rotating support (11), a limiting piece (13) is arranged on the supporting platform (12), a limiting groove (131) is arranged on the limiting piece (13), and the supporting piece (21) is arranged in the limiting groove (131);

the supporting component (14) is connected with the supporting platform (12), and comprises a supporting column and a bottom counterweight part (141), wherein one end of the supporting column is connected with the supporting platform (12), the bottom counterweight part (141) is connected with the other end of the supporting column, and the bottom counterweight part (141) is fixedly connected with the ground through a fastening piece.

4. A rapid surveying arrangement according to claim 3, characterized in that the moving member (22) comprises:

the inner loop bar (221) is connected with the supporting piece (21) in a sliding mode and is connected with the rotating support (11) through an elastic piece (224), and the inner loop bar (221) is fixedly connected with the transmission piece (23);

the wheel carrier (222) is arranged at the top of the inner loop bar (221) and is fixedly connected with the inner loop bar (221);

a roller (223) rotatably connected with the wheel frame (222).

5. A rapid surveying and mapping device according to claim 4, characterized in that the driving member (31) is connected to the upper fixed seat (35) by an upper rotating shaft (37), and an upper driving wheel (38) connected to the transmission connecting member (32) is provided on the upper rotating shaft (37); the driven part (33) is connected with the lower fixed seat (36) through a lower rotating shaft, and a lower driving wheel (39) connected with the transmission connecting piece (32) is arranged on the lower rotating shaft; the connecting line of the centers of the upper driving wheel (38) and the lower driving wheel (39) is parallel to the length direction of the supporting piece (21).

6. A rapid surveying and mapping device according to claim 4, characterized in that the supporting columns comprise vertical columns (142) and oblique columns (143), the oblique columns (143) are provided in a plurality of groups, adjacent oblique columns (143) are connected to form a regular polygon, the vertical column (142) is arranged at the geometric center of the regular polygon; the bottom of the vertical strut (142) and the bottom of the oblique strut (143) are both provided with the bottom counterweight piece (141).

7. A rapid surveying and mapping device according to claim 4, characterized in that the support (21) is a hollow tubular structure, the inner loop bar (221) and the elastic member (224) being both arranged within the support (21); a limiting hole (211) arranged along the vertical direction is formed in the supporting piece (21); the transmission piece (23) penetrates through the limiting hole (211) and is detachably connected with the inner loop bar (221).

8. A rapid surveying and mapping device according to claim 4, characterized in that the retaining element (13) is two semicircular plates arranged in parallel, between which the retaining groove (131) is formed, and the rotation support (11) is arranged in the retaining groove (131).

9. A rapid surveying and mapping device according to any one of claims 1-8, characterized in that the driving member (31) and the driven member (33) are both gears, the driving member (23) is provided with a rack engaging with the driving member (31), one end of the drawing support (34) is provided with a rack engaging with the driven member (33), and the other end is provided with a buckle detachably connected with the drawing member (4).

10. A tunnel overbreak site rapid mapping method is characterized by comprising the following steps:

step 1, adjusting the direction and the angle of a base (1), enabling a limiting piece (13) to be perpendicular to the axis of a tunnel, fixing the base (1), installing a telescopic surveying and mapping assembly (2) on a rotating support (11) of the base (1), and enabling a front-end roller (223) to be in contact with surrounding rocks around the tunnel;

step 2, selecting proper sizes of a driving part (31) and a driven part (33) according to a required drawing displacement transmission ratio, installing a drawing assembly (3), placing drawing paper on a limiting part (13) on one side with a drawing part (4), and contacting the drawing part (4) with the paper;

and 3, rotating the telescopic surveying and mapping assembly (2) to enable the front-end roller (223) to roll along the inner wall of the tunnel, when the inner wall of the tunnel is uneven, the inner loop bar (221) can stretch up and down along with the inner loop bar under the action of the bottom elastic part (224), the inner loop bar (221) drives the transmission part (23) to move up and down, the transmission part (23) moves up and down to drive the driving part (31) to rotate forward and backward, the driving part (31) rotates forward and backward to drive the transmission connecting part (32) to rotate forward and backward, the transmission connecting part (32) rotates forward and backward to drive the driven part (33) to rotate forward and backward to drive the drawing support (34) to move up and down, the drawing part (4) installed on the drawing support (34) moves up and backward along with the drawing part, and a curve is drawn on the drawing paper.

Technical Field

The invention relates to the technical field of tunnel construction, in particular to a rapid surveying and mapping device and a using method thereof.

Background

The tunnel over-under-excavation amount is an important parameter to be controlled in the tunnel construction process, the over-excavation size is larger than the design size, and the under-excavation size is smaller than the design size. Super undermining all has the negative effects of different degrees to the tunnel quality, and undermining can lead to tunnel lining thickness not enough, and super undermining can strengthen the disturbance to the country rock, and leads to defects such as lining incompact easily. The technical specification of highway tunnel construction stipulates: the method is characterized in that underexcavation is strictly controlled, the section of the arch springing and the wall springing is strictly forbidden to underexcavation within the range of 1 m, and overbreak is reduced as much as possible, and the maximum overbreak amount and the average overbreak amount are limited.

The current surpass owes to dig testing arrangement adopts spirit level or section appearance mainly, and this kind of instrument belongs to precision instrument, and the price is high, and measuring time is long, requires highly to the environment, is unfavorable for using under the complicated environment of tunnel excavation face. In addition, the existing overbreak and underbreak adopts point test, a section is evaluated by testing overbreak and underbreak data of a point number, and the obtained measurement result has large limitation and incompleteness and is easy to cause inaccurate measurement.

Disclosure of Invention

Aiming at the defects, the invention provides a quick mapping device and a using method thereof, aiming at solving the problems of high price, long measuring time, high requirement on environment and inconvenience for use in the environment with complex tunnel excavation surface existing in the prior art; the measurement result obtained by adopting the point test has the problems of large limitation, incompleteness and inaccurate measurement.

The invention provides a rapid mapping device, comprising:

the base is fixed on the ground and comprises a rotating support;

the telescopic mapping assembly is arranged on the base and comprises a supporting piece in rotating connection with the rotating support and a moving piece in sliding connection with the supporting piece, and a transmission piece is arranged on the moving piece;

the drawing subassembly set up in on the flexible survey and drawing subassembly, include with the driving part of driving medium cooperation motion, with the driving part pass through the follower that the transmission connecting piece is connected, with the drawing support of follower cooperation motion, be equipped with the drawing part on the drawing support, the driving part with the follower all with support piece fixed connection.

Preferably, the drawing assembly further comprises:

the upper fixing seat is arranged between the driving part and the supporting part, is fixedly connected with the supporting part and is in sliding connection with the transmission part, and is rotationally connected with the driving part;

the lower fixing seat is arranged between the driven piece and the supporting piece, the lower fixing seat is fixedly connected with the supporting piece and is in sliding connection with the drawing support, and the lower fixing seat is rotatably connected with the driven piece.

Preferably, the base further comprises:

the supporting platform is connected with the rotating support, a limiting part is arranged on the supporting platform, a limiting groove is arranged on the limiting part, and the supporting part is arranged in the limiting groove;

the supporting component is connected with the supporting platform, and comprises a supporting column and a bottom counterweight part, one end of the supporting column is connected with the supporting platform, the bottom counterweight part is connected with the other end of the supporting column, and the bottom counterweight part is fixedly connected with the ground through a fastening piece.

Preferably, the moving member includes:

the inner loop bar is connected with the supporting piece in a sliding mode and is connected with the rotating support through an elastic piece, and the inner loop bar is fixedly connected with the transmission piece;

the wheel carrier is arranged at the top of the inner loop bar and is fixedly connected with the inner loop bar;

and the roller is rotationally connected with the wheel carrier.

Preferably, the driving part is connected with the upper fixing seat through an upper rotating shaft, and an upper driving wheel connected with the transmission connecting part is arranged on the upper rotating shaft; the driven part is connected with the lower fixed seat through a lower rotating shaft, and a lower transmission wheel connected with the transmission connecting piece is arranged on the lower rotating shaft; and a connecting line of the centers of the upper transmission wheel and the lower transmission wheel is parallel to the length direction of the supporting piece.

Preferably, the supporting columns comprise vertical supporting columns and oblique supporting columns, the oblique supporting columns are provided with a plurality of groups, connecting lines of adjacent oblique supporting columns form a regular polygon, and the vertical supporting columns are arranged at the geometric center of the regular polygon; the bottom of vertical pillar with the slant pillar all is equipped with bottom counterweight.

Preferably, the support member is a hollow tubular structure, and the inner loop bar and the elastic member are both arranged in the support member; the supporting piece is provided with a limiting hole arranged along the vertical direction; the transmission part penetrates through the limiting hole and is detachably connected with the inner loop bar.

Preferably, the locating part is two parallel arrangement's semicircle boards, two form between the semicircle board spacing ditch, the rotation support set up in the spacing ditch.

Preferably, the driving part and the driven part are gears, a rack meshed with the driving part is arranged on the transmission part, a rack meshed with the driven part is arranged at one end of the drawing support, and a buckle detachably connected with the drawing part is arranged at the other end of the drawing support.

The invention also provides a tunnel overbreak and underexcavation site rapid surveying and mapping method, which comprises the following steps:

step 1, adjusting the direction and the angle of a base, fixing the base after a limiting piece is perpendicular to the axis of a tunnel, and installing a telescopic surveying and mapping assembly on a rotating support of the base to enable a front-end roller to be in contact with surrounding rocks around the tunnel;

step 2, selecting proper sizes of a driving part and a driven part according to a required drawing displacement transmission ratio, installing a drawing assembly, placing drawing paper on a limiting part at one side with the drawing part, and contacting the drawing part with the paper;

and 3, rotating the telescopic surveying and mapping assembly to enable the front-end roller to roll along the inner wall of the tunnel, when the inner wall of the tunnel is uneven, the inner loop bar can stretch up and down along with the inner loop bar under the action of the bottom elastic part, the inner loop bar drives the transmission part to move up and down, the transmission part moves up and down to drive the driving part to rotate forward and backward, the driving part rotates forward and backward to drive the transmission connecting part to rotate forward and backward, the transmission connecting part rotates forward and backward to drive the driven part to rotate forward and backward, the driven part rotates forward and backward to drive the drawing support to move up and down, the drawing part arranged on the drawing support moves up.

According to the scheme, the rapid surveying and mapping device is applied to rapid surveying and mapping of the over-under excavation of the section of the tunnel construction site, has low requirements on environment and personnel technical level, can be used in the environment with uneven site, large dust and poor lighting condition, is convenient for rapidly testing the over-under excavation data of the excavated section, and can draw a section curve graph on site; through the rotation of flexible survey and drawing subassembly, survey and draw out complete section curve shape, have the line test function. The invention solves the problems of high price, long measuring time, high requirement on environment and difficult use in the complex environment of the tunnel excavation surface in the prior art; the point test method has the advantages of being large in limitation, incomplete, inaccurate in measurement, simple in structure, remarkable in effect and suitable for wide popularization.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic top view of a rapid mapping apparatus according to an embodiment of the present invention;

FIG. 2 is a sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic perspective view of the rapid surveying apparatus shown in FIG. 1;

FIG. 4 is an enlarged schematic view of the structure at B in FIG. 3;

FIG. 5 is a schematic diagram of a support of the rapid surveying device shown in FIG. 1;

FIG. 6 is a schematic diagram of a moving part of the rapid surveying and mapping apparatus shown in FIG. 1;

FIG. 7 is a schematic diagram of a base of the rapid surveying device shown in FIG. 1;

FIG. 8 is a schematic perspective view of another rapid mapping apparatus according to an embodiment of the present invention;

fig. 9 is an enlarged schematic view of the structure at C in fig. 8.

In FIGS. 1-9:

1. a base; 2. a telescopic mapping assembly; 3. a drawing component; 4. drawing a picture; 11. rotating the support; 12. a support table; 13. a limiting member; 14. a support assembly; 15. a reinforcing frame; 21. a support member; 22. a moving member; 23. a transmission member; 31. a driving member; 32. a transmission connection member; 33. a driven member; 34. a drawing support; 35. an upper fixed seat; 36. a lower fixed seat; 37. an upper rotating shaft; 38. a driving wheel is arranged; 39. a lower driving wheel; 131. a limiting groove; 141. a bottom counterweight; 142. a vertical pillar; 143. an oblique strut; 144. a deformation shaft; 211. a limiting hole; 221. an inner loop bar; 222. a wheel carrier; 223. a roller; 224. an elastic member.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1 to fig. 7, an embodiment of a fast mapping apparatus according to the present invention will be described. The quick surveying and mapping device comprises a base 1, a telescopic surveying and mapping component 2 and a drawing component 3, wherein the base 1 is fixed on the ground in a tunnel, plays a role in fixing and comprises a rotating support 11; the telescopic surveying and mapping assembly 2 is arranged on the base 1 and comprises a supporting piece 21 rotatably connected with the rotating support 11 and a moving piece 22 slidably connected with the supporting piece 21, a transmission piece 23 is arranged on the moving piece 22, and the top of the moving piece 22 is in contact with the surface of the tunnel; the drawing assembly 3 is arranged on the telescopic surveying and mapping assembly 2 and comprises a driving part 31, a driven part 33 and a drawing support 34, wherein the driving part 31 moves in a matched mode with the transmission part 23, the driven part 33 is connected with the driving part 31 through a transmission connecting part 32, the drawing support 34 moves in a matched mode with the driven part 33, a drawing part 4 is arranged on the drawing support 34, and the driving part 31 and the driven part 33 are both fixedly connected with the supporting part 21.

The rotating support 11 can be a spherical support, and a concave cavity matched with the spherical support is arranged on the support member 21; the rotating support 11 can also be a circular plate-shaped structure, and the support piece 21 is hinged with the center of the circular plate and rotates along the excircle of the circular plate; the drawing element 4 may be a drawing pen. Through the size of adjustment driving piece 31, follower 33, reach different displacement transmission proportions, according to digging the relative size selection of section and paper appropriate transmission proportion, the range of application is wider, and is exemplary, when transmission displacement proportion is 10: when 1, the inner loop bar 221 of the moving part 22 extends by 10cm, and the drawing part 4 extends by 1 cm.

A tunnel overbreak site rapid surveying and mapping method obtained by using the rapid surveying and mapping device comprises the following specific steps:

s1, adjusting the direction and the angle of the base 1, enabling the limiting piece 13 of the base 1 to be vertical to the axis of the tunnel, then fixing the base 1, installing the telescopic surveying and mapping assembly 2 on the rotating support 11 of the base 1, and enabling the roller 223 at the foremost end of the moving piece 22 to be in contact with surrounding rocks around the tunnel;

s2, selecting proper sizes of the driving part 31 and the driven part 33 according to the required drawing displacement transmission proportion, installing the drawing component 3, placing drawing paper or an electronic drawing board on the limiting part 13 at one side with the drawing part 4, and contacting the drawing part 4 with the paper or the electronic drawing board;

s3, the telescopic mapping component 2 is rotated to enable the front end roller 223 to roll along the inner wall of the tunnel, when the inner wall of the tunnel is uneven, the inner loop bar 221 can stretch up and down along with the inner loop bar under the action of the bottom elastic part 224, the inner loop bar 221 drives the transmission part 23 to move up and down, the up and down movement of the transmission part 23 drives the driving part 31 to rotate forward and backward, the forward and backward rotation of the driving part 31 drives the transmission connecting part 32 to rotate forward and backward, the forward and backward rotation of the transmission connecting part 32 drives the driven part 33 to rotate forward and backward, the forward and backward rotation of the driven part 33 drives the mapping bracket 34 to move up and down, the mapping part 4 arranged on the mapping bracket 34 moves up and down along with the drawing paper or the electronic mapping plate, and the curve is drawn on the mapping paper or the electronic mapping plate.

Compared with the prior art, the rapid mapping device is a device for rapidly and conveniently testing the tunnel break-back on the tunnel excavation working face, has low requirements on environment and personnel technical level, can be used in environments with uneven field, larger dust and poor lighting conditions, is convenient for rapidly testing break-back data of an excavation section, and can draw a section curve graph on site; through the rotation of flexible survey and drawing subassembly 2, survey and draw out complete section curve shape, have the line test function. The invention is a simple tool for rapidly testing the tunnel break-over on site, has simple structure, low price and strong environment adaptability, can draw the break-over situation of the whole section, and has larger and richer data volume and more accurate data volume compared with the traditional point test.

Example 2

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 to 7 together, the structure of the fast mapping apparatus provided in this embodiment is substantially the same as that of embodiment 1, except that the drawing component 3 further includes an upper fixing seat 35 and a lower fixing seat 36, wherein the upper fixing seat 35 is disposed between the driving member 31 and the supporting member 21, the upper fixing seat 35 is fixedly connected to the supporting member 21 and slidably connected to the transmission member 23, and the upper fixing seat 35 is rotatably connected to the driving member 31; the lower fixing seat 36 is disposed between the driven member 33 and the supporting member 21, the lower fixing seat 36 is fixedly connected with the supporting member 21 and slidably connected with the drawing frame 34, and the lower fixing seat 36 is rotatably connected with the driven member 33. The upper fixing seat 35 supports the driving part 31 and the transmission connecting part 32, and the lower fixing seat 36 supports the driven part 33, the drawing bracket 34 and the transmission connecting part 32, so that displacement is effectively transmitted through the transmission connecting part 32.

In this embodiment, the driving member 31 is connected to the upper fixing base 35 through an upper rotating shaft 37, and the upper rotating shaft 37 is provided with an upper driving wheel 38 connected to the transmission connecting member 32; the driven part 33 is connected with the lower fixed seat 36 through a lower rotating shaft, and a lower transmission wheel 39 connected with the transmission connecting part 32 is arranged on the lower rotating shaft; the connecting line of the centers of the upper transmission wheel 38 and the lower transmission wheel 39 is parallel to the length direction of the supporting part 21, and the structure ensures that displacement is transmitted in equal proportion and high efficiency. Different displacement transmission ratios are achieved by adjusting the sizes of the driving part 31, the driven part 33, the upper transmission wheel 38 and the lower transmission wheel 39.

In this embodiment, the driving member 31 and the driven member 33 are both gears, the transmission member 23 is provided with a rack engaged with the driving member 31, one end of the drawing support 34 is provided with a rack engaged with the driven member 33, and the other end is provided with a buckle detachably connected with the drawing member 4. The upper driving wheel 38 and the lower driving wheel 39 are belt pulleys, the driving connecting piece 32 is a belt, and the belt drives the upper belt pulley and the lower belt pulley to synchronously rotate so as to realize the transmission of the motion between the two belt pulleys.

The specific steps of the kinetic energy transmission among the driving member 31, the transmission connecting member 32 and the driven member 33 are that the positive and negative rotation of the driving member 31 drives the upper transmission wheel 38 to rotate positively and negatively, the positive and negative rotation of the upper transmission wheel 38 drives the transmission connecting member 32 to rotate positively and negatively, the positive and negative rotation of the transmission connecting member 32 drives the lower transmission wheel 39 to rotate positively and negatively, and the positive and negative rotation of the lower transmission wheel 39 drives the driven member 33 to rotate positively and negatively.

In this embodiment, the base 1 further includes a supporting platform 12 and a supporting assembly 14, wherein the supporting platform 12 is connected to the rotating support 11, the supporting platform 12 is provided with a limiting member 13, the limiting member 13 is provided with a limiting groove 131, and the supporting member 21 is disposed in the limiting groove 131; the supporting component 14 is connected to the supporting platform 12, and includes a supporting column with one end connected to the supporting platform 12, and a bottom counterweight 141 connected to the other end of the supporting column, wherein the bottom counterweight 141 is fixedly connected to the ground through a fastening member. The bottom weight 141 may be a disc foot pad for increasing a contact surface with the ground and a weight, and ensuring stability of the upper structure.

In this embodiment, the limiting member 13 is two semicircular plates disposed in parallel, a limiting groove 131 is formed between the two semicircular plates, and the rotating support 11 is disposed in the limiting groove 131. The support 12 may be a disk platform, and the rotating support 11 is used to fix the bottom of the telescopic surveying and mapping assembly 2. It is within the scope of the present disclosure that the performance of the stopper 13 and the supporting base 12 can be achieved.

In this embodiment, the moving member 22 includes an inner rod 221, a wheel frame 222 and a roller 223, wherein the inner rod 221 is slidably connected to the supporting member 21 and connected to the rotating support 11 through an elastic member 224, and the inner rod 221 is fixedly connected to the transmission member 23; the wheel frame 222 is arranged on the top of the inner loop bar 221 and fixedly connected with the inner loop bar 221; the roller 223 is rotatably connected to the wheel frame 222. The inner loop bar 221 and the transmission member 23 are fixed together through screws, and drive the transmission member 23 to move up and down. The elastic member 224 may be a spring or a leaf spring; the roller 223 reduces the friction between the moving member 22 and the tunnel, and the moving member 22 rotates more smoothly.

In this embodiment, the supporting columns include vertical supporting columns 142 and oblique supporting columns 143, the oblique supporting columns 143 are provided with a plurality of groups, the connecting lines of adjacent oblique supporting columns 143 form a regular polygon, and the vertical supporting columns 142 are arranged at the geometric center of the regular polygon, so that the structural stability is better, and the structure is better suitable for harsh environments with uneven fields; the bottom of vertical pillar 142 and slant pillar 143 all is equipped with bottom counterweight 141, and bottom counterweight 141 is used for adjusting the whole atress of support column, can be the different block of shape quality, and bottom counterweight 141 makes the bottom installation more firm, and the mapping process is more stable. Illustratively, the base 1 comprises a vertical pillar 142 and three oblique pillars 143, the bottoms of the oblique pillars 143 are connected to form a regular triangle, and the vertical pillar 142 is vertically arranged at the geometric center of the regular triangle.

In the present embodiment, the supporting member 21 is a hollow tubular structure, and the inner rod 221 and the elastic member 224 are both disposed in the supporting member 21; a limiting hole 211 is arranged on the supporting piece 21 along the vertical direction; the transmission piece 23 passes through the limiting hole 211 to be detachably connected with the inner loop bar 221, and the limiting hole 211 is mainly convenient for the connection of the transmission piece 23 and the inner loop bar 221, so that the displacement of the inner loop bar 221 is effectively transmitted out. Support piece 21 can be the taper pipe of width under the narrow top, and this structure bottom is connected fixedly with base 1, and overall stability is better, and intensity is bigger. It should be understood that the terms "length," "width," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, are used in an orientation or positional relationship indicated in the drawings for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the base 1, the telescopic mapping assembly 2, and the drawing assembly 3, and components thereof, must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.

Example 3

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 to 9 together, the structure of the fast mapping apparatus provided in this embodiment is substantially the same as that of embodiment 2, but the difference is that a deformation shaft 144 is disposed between the support pillar and the bottom counterweight 141, one end of the deformation shaft 144 is hinged to the support pillar, and the other end is rotatably connected to the bottom counterweight 141, and the deformation shaft 144 may be a cylindrical rod; the bottom counterweight 141 is a cylindrical rotating wheel, the surface of the rotating wheel is provided with a mounting hole, and fasteners such as bolts and the like fix the bottom counterweight 141 and the ground through the mounting hole; the support column can be electric cylinder for freely flexible structure, and this structure is favorable to the adjustment to the biggest flexible height of gyro wheel 223, and the range of application is wider. The position that the support column is connected with deformation axle 144 is equipped with spacing shifting chute, and deformation axle 144 sets up in spacing shifting chute, moves along the direction that sets up in spacing shifting chute, and spacing shifting chute sets up to circular arc groove structure.

In the surveying and mapping process, the lower surface of the bottom counterweight member 141 is in contact with the ground, and the upper edge is sequentially connected with the deformation shaft 144 and the support column to support the support table 12; vertical pillar 142 supports after the survey and drawing is accomplished, and slant pillar 143 contracts, rotates deformation shaft 144 and is the level form, and the side and the ground contact of bottom counterweight 141 this moment, slant pillar 143 extend and support whole, and bottom counterweight 141 rotates as the wheel that rolls simultaneously, removes whole device to another position that needs the survey and drawing, this simple structure, warp, remove the facility, are favorable to improving work efficiency, avoid the dismouting of relapseing.

In this embodiment, the support base 12 is further provided with a reinforcing frame 15, and the reinforcing frame 15 is rotatably connected to the support base 12 and provided with a return spring between itself and the support base 12. The reinforcing frame 15 is moved, the drawing paper or the electronic drawing board is fixed between the reinforcing frame 15 and the limiting piece 13, and the drawing paper or the electronic drawing board is clamped and fixed through the elasticity of the return spring, so that the mounting and the fixing are convenient; meanwhile, the reinforcing frame 15 is obliquely arranged on one side of the limiting piece 13, plays a certain supporting role for the limiting piece 13, and is beneficial to increasing the overall strength of the limiting piece 13.

The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other. Details which are not described in detail in the embodiments of the invention belong to the prior art which is known to the person skilled in the art.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.