CN218099749U

CN218099749U - Measuring prism device

Info

Publication number: CN218099749U
Application number: CN202222809187.2U
Authority: CN
Inventors: 刘鹰; 花书军; 冯玮光; 张博; 李明; 莫中生; 华亮; 才群; 刘信科; 李文雅; 熊飞; 崔士力; 杨泽旭; 王建; 张云鹏
Original assignee: China Railway Liuyuan Group Co Ltd
Current assignee: China Railway Liuyuan Group Co Ltd
Priority date: 2022-10-25
Filing date: 2022-10-25
Publication date: 2022-12-20
Anticipated expiration: 2032-10-25

Abstract

The utility model provides a measure prism device, including little prism, angle adjusting member and centering rod, the upper portion and the little prism of angle adjusting member are connected, and the lower part rotates with the centering rod to be connected, the reason is not higher than on the angle adjusting member the reason goes up on little prism. The utility model discloses a little prism can paste tight collection object surface, but measurement accuracy is high, angle regulation, especially is applicable to tunnel section measurement among the subway engineering.

Description

Measuring prism device

Technical Field

The utility model belongs to underground tunnel engineering monitoring field, in particular to measurement prism device.

Background

At present, engineering survey such as section survey, real estate survey, topographic survey, completion survey and the like is mainly completed by using a total station, and generally prism-free, round prism and mini small prism are adopted for surveying. The collimation axis of the prism-free method needs to form a vertical or large included angle with the measured surface, data cannot be acquired under the condition of an excessively small angle, and particularly the prism-free method is used for measuring the section of a narrow tunnel, so that the number of stations is large, and the efficiency is low; the circular prism has large volume, can not be accurately attached to the acquisition surface, and has low measurement precision and high cost; the mini small prism outer frame is different in shape, cannot be attached accurately, and is not beneficial to data processing.

Disclosure of Invention

The utility model discloses to the technical problem who exists among the prior art, provide a measurement prism device, can paste tight collection object surface, simple structure, low in cost, sturdy and durable, measurement accuracy is high, angle regulation, especially are applicable to tunnel section measurement among the subway engineering.

The utility model adopts the technical proposal that: a measuring prism device comprises a small prism, an angle adjusting member and a centering rod, wherein the upper part of the angle adjusting member is connected with the small prism, the lower part of the angle adjusting member is rotatably connected with the centering rod, and the upper edge of the angle adjusting member is not higher than the upper edge of the small prism.

Further, the centering rod comprises an outer tube, a conical gear A, a conical central gear B, a central rotating shaft and a rotating handle, the outer tube is a hollow tube, the conical gear A, the conical central gear B and the central rotating shaft are arranged in the outer tube, the conical gear A is fixedly connected with the angle adjusting component, the conical gear A is meshed with the conical central gear B, the upper end of the central rotating shaft is fixedly connected with the conical central gear B, the lower end of the central rotating shaft is connected with the rotating handle, scale marks are arranged on the rotating handle, and a fixing screw used for fastening the rotating handle is arranged on the outer tube.

Furthermore, the upper portion of the rotating handle is located in a groove in the lower portion of the outer tube, the fixing screw penetrates through the side wall of the groove, and the front end of the fixing screw abuts against the upper portion of the rotating handle.

Further, the outer tube is a hollow aluminum alloy circular tube.

Further, the bevel gear a is fixedly connected with the angle adjusting member through a screw.

Further, the angle adjusting member is screwed with the small prism.

Compared with the prior art, the utility model discloses the beneficial effect who has is:

1. the utility model discloses a no frame design, angle modulation component's last reason is not higher than the reason of the last reason of little prism, and little prism can paste tight collection object surface, and measurement accuracy is high.

2. The utility model discloses a centering rod design, through the turned angle that the little prism of turning handle can be quick, accurate adjustment, tunnel section side wall is hugged closely to convenient little prism.

3. The utility model is suitable for a narrow tunnel section is measured, light and handy convenient, the adjustable angle that is fit for of little prism, work efficiency is high.

4. The outer tube of the utility model is made of aluminum alloy material, and has light weight, high hardness, firmness and durability.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention;

fig. 2 is an enlarged view of a point a in fig. 1 according to an embodiment of the present invention;

fig. 3 is a schematic cross-sectional view of an embodiment of the present invention;

fig. 4 is an enlarged view of fig. 3 at B according to an embodiment of the present invention;

fig. 5 is an enlarged view of fig. 3 at C according to an embodiment of the present invention;

fig. 6 is a schematic structural view of an angle adjustment member according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a small prism according to an embodiment of the present invention;

fig. 8 is a schematic view of measuring a cross section of a circular tunnel according to an embodiment of the present invention;

fig. 9 is a schematic view of the cross section measurement of the horseshoe tunnel according to the embodiment of the present invention.

In the figure: 1-small prism, 2-angle adjusting component, 3-outer tube, 4-bevel gear A, 5-bevel gear B, 6-central rotating shaft, 7-rotating handle, 8-fixing screw and 9-graduation line.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

An embodiment of the utility model provides a measurement prism device, as shown in fig. 1-7, it includes little prism 1, angle adjusting member 2 and centering rod. The upper part of the angle adjusting component 2 is provided with an internal thread groove which is matched with the thread at the rear end of the small prism 1. The angle adjusting member 2 is screwed with the small prism 1. The upper edge of the angle adjusting member 2 is not higher than the upper edge of the small prism 1, and both are flush in this embodiment. The centering rod comprises an outer tube 3, a bevel gear A4, a bevel gear B5, a central rotating shaft 6 and a rotating handle 7. The outer pipe 3 is a hollow aluminum alloy circular pipe. The inner part of the outer tube 3 is provided with a bevel gear A4, a bevel gear B5 and a central rotating shaft 6. The bevel gear A4 and the bevel gear B5 are positioned on the upper part of the outer tube 3. The lower part of the angle adjusting component 2 is provided with a fixed screw hole and is fixedly connected with a bevel gear A4 through a screw. The bevel gear A4 meshes with a bevel gear B5. The upper end of the central rotating shaft 6 is fixedly connected with the bevel gear B5, and the lower end of the central rotating shaft is fixedly connected with the upper end of the rotating handle 7. The upper part of the rotating handle 7 is positioned in a groove at the lower part of the outer tube 3. The outer tube 3 is provided with a fixing screw 8, the fixing screw 8 penetrates through the side wall of the groove, and the front end of the fixing screw abuts against the outer side of the upper portion of the rotating handle 7. The rotating handle 7 is provided with scale marks 9, and the outer tube 3 is provided with alignment marks matched with the scale marks 9.

When the angle adjusting device is used, the rotating handle 7 is rotated, the rotating handle 7 drives the bevel gear B5 to rotate through the central rotating shaft 6, then the bevel gear A4 is rotated, and the angle adjusting component 2 and the small prism 1 on the angle adjusting component are driven to rotate along the screw. The bevel gear A4 and the bevel gear B5 can be of the same type, and the rotation angle of the rotating handle 7 is the rotation angle of the small prism 1. The angle of rotation of the stem 7 can be read directly by means of the graduation marks 9 and the alignment marks. When the angle adjusting member 2 is in the vertical state, the alignment mark is aligned with the 90 ° graduation mark.

When the embodiment is used for measuring the cross sections of a circular tunnel and a horseshoe tunnel, the positions are respectively shown in fig. 8 and fig. 9. Taking the section measurement of the horseshoe-shaped tunnel as an example, the characteristic points of the bottom plate, the side walls and the vault are measured by using the method shown in fig. 9. Before the use, the small prism 1 is screwed and fixed on the angle adjusting component 2, the rotating handle 7 is rotated, the small prism 1 is adjusted to a proper angle, the small prism 1 can be tightly attached to the characteristic point, and the measurement is started after the fixing screw 8 is screwed. And respectively completing the measurement of the feature point positions of the sections on the vault and the side wall. When the bottom plate is measured, the angle adjusting member 2 is in a vertical state, that is, the alignment mark is aligned with the 90 ° scale mark.

The present invention has been described in detail with reference to the embodiments, but the description is only exemplary of the present invention and should not be construed as limiting the scope of the present invention. The protection scope of the present invention is defined by the claims. Technical scheme, or technical personnel in the field are in the utility model technical scheme's inspiration the utility model discloses an essence and protection within range, design similar technical scheme and reach above-mentioned technological effect, perhaps to the impartial change that application scope was made and improve etc. all should still belong to within the protection scope is covered to the patent of the utility model.

Claims

1. A measurement prism apparatus, characterized in that: the angle adjusting device comprises a small prism, an angle adjusting member and a centering rod, wherein the upper part of the angle adjusting member is connected with the small prism, the lower part of the angle adjusting member is rotatably connected with the centering rod, and the upper edge of the angle adjusting member is not higher than the upper edge of the small prism.

2. The measurement prism apparatus according to claim 1, wherein: the centering rod comprises an outer tube, a conical gear A, a conical central gear B, a central rotating shaft and a rotating handle, the outer tube is a hollow tube, the conical gear A, the conical central gear B and the central rotating shaft are arranged in the outer tube, the conical gear A is fixedly connected with the angle adjusting component, the conical gear A is meshed with the conical central gear B, the upper end of the central rotating shaft is fixedly connected with the conical central gear B, the lower end of the central rotating shaft is connected with the rotating handle, scale marks are arranged on the rotating handle, and a fixing screw used for fastening the rotating handle is arranged on the outer tube.

3. The measurement prism apparatus according to claim 2, wherein: the upper portion of the rotating handle is located in a groove in the lower portion of the outer tube, the fixing screw penetrates through the side wall of the groove, and the front end of the fixing screw abuts against the upper portion of the rotating handle.

4. The measurement prism apparatus according to claim 2, wherein: the outer pipe is a hollow aluminum alloy circular pipe.

5. The measurement prism apparatus according to claim 2, wherein: the bevel gear A is fixedly connected with the angle adjusting component through a screw.

6. The measurement prism apparatus according to claim 1, wherein: the angle adjusting member is in threaded connection with the small prism.