Angle measuring device for tunnel construction

Abstract

The utility model discloses an angle measuring device for tunnel construction, which comprises an angle measuring instrument, the angle measuring instrument is arranged on a fixed end main body assembly, the fixed end main body assembly comprises a main body supporting rod and a starting wall surface fitting plate, the main body supporting rod is rotatably connected with a mobile measuring end mechanism through a connecting shaft, and the starting wall surface fitting plate is connected with the main body supporting rod. The mobile measuring end mechanism comprises a rotary supporting rod, a plurality of groups of telescopic frames and a measuring and positioning assembly; and the telescopic frames are mounted between the rotary supporting rod and the measuring and positioning assembly. Through the arrangement of the telescopic frame, the telescopic frame is changed from a closed state to an open state in the moving process of the measuring and positioning assembly, so that the moving distance of the measuring and positioning assembly is changed, the angle between different tunnel positions can be measured through the measuring and positioning assembly at different positions, and the measuring range is enlarged; angle measurement between single distances is not needed any more, and practicability of tunnel angle measurement is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, in particular to an angle measuring device for tunnel construction. Background Art

[0002] Tunnel construction is the process of digging a passage underground or underwater for use in transportation, water conservancy, energy and other fields. During the construction process, angle measurement can ensure that the tunnel is accurately positioned and oriented according to the design requirements. By measuring the angle of the tunnel axis, construction personnel can ensure that the position and direction of the tunnel meet the design requirements and avoid deviation from the predetermined trajectory.

[0003] When measuring the angle between the side walls at two different positions inside a tunnel, workers use a ruler to measure the angle. However, the distance between the two positions measured by the ruler is limited. When the distance between the two positions to be measured is large, the ruler cannot work, so the measurement range is limited and the practicality is poor. Moreover, when the wall is not completely perpendicular to the ground, the ruler can only observe the angle of the horizontal dimension and cannot represent the angle trend between the longitudinal wall and the ground in the space. Utility Model Content

[0004] The purpose of the utility model is to provide an angle measuring device for tunnel construction, so as to solve the problems of the existing angle measuring device for tunnel construction proposed in the above background technology, that the use distance is fixed, multiple groups of angle measurements between fixed positions and different positions inside the tunnel cannot be achieved, the measurement range is limited, and the practicality is poor.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an angle measuring device for tunnel construction, comprising an angle measuring instrument, wherein the angle measuring instrument is installed on a fixed-end main body assembly, wherein the fixed-end main body assembly comprises a main body support rod and a starting wall bonding plate, wherein the main body support rod is rotatably connected to a mobile measuring end mechanism via a connecting shaft, wherein the mobile measuring end mechanism comprises a rotating support rod, a telescopic frame and a measuring and positioning assembly, wherein a plurality of telescopic frames are installed between the rotating support rod and the measuring and positioning assembly.

[0006] Preferably, the main support rod includes a top connecting piece, a middle connecting piece and a bottom connecting piece, and the top connecting piece, the middle connecting piece and the bottom connecting piece are all annular structures and are respectively provided with bearings on the inner sides, and the bearings are fixed on the connecting shaft; the rotating support rod includes an upper connecting piece and a lower connecting piece, and the connecting shaft is plugged into and connected to the upper connecting piece and the lower connecting piece; the rotating support rod is rotatably connected to the main support rod.

[0007] Preferably, a fixing groove is provided above the top connecting member, a housing of the angle measuring instrument is fixed in the fixing groove, and a pointer of the angle measuring instrument is fixedly connected to the top end of the connecting shaft.

[0008] Preferably, the telescopic frame includes a fixed sleeve, a movable sleeve and a central connecting piece, the fixed sleeve and the movable sleeve are respectively arranged on both sides of the central connecting piece, the movable sleeve and the central connecting piece are respectively grooved on the top and bottom sides, the movable sleeve is slidably connected to the central connecting piece, and the fixed sleeve is slidably connected to the movable sleeve.

[0009] Preferably, the starting wall bonding plate is located on the side of the main support rod in contact with the wall, and the side of the measuring and positioning component in contact with the wall is provided with an end wall bonding plate.

[0010] Preferably, the bottoms of the fixed-end main body component and the measuring and positioning component are respectively fixedly connected to a supporting platform component, and the supporting platform component includes a supporting plate and springs, and the springs are evenly distributed at the bottom of the supporting plate.

[0011] Preferably, a fixed base is fixedly connected to the bottom of the support platform assembly below the fixed-end main body assembly, and a universal wheel base is fixedly connected to the bottom of the support platform assembly below the measuring and positioning assembly.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model sets a telescopic frame. During the movement of the measuring and positioning component, the telescopic frame changes from a closed state to an open state, thereby changing the moving distance of the measuring and positioning component. By measuring the positioning component at different positions, the angles between different tunnel positions can be measured, and the measurement range is increased. It is no longer an angle measurement between a single distance, which improves the practicality of tunnel angle measurement.

[0014] 2. The utility model sets the support platform component. When the tunnel wall is not completely vertical, the spring is deformed under the action of the support platform component, and the support plate can adjust the angle of the entire fixed end main body component and the entire measurement and positioning component, thereby improving the fit between the starting wall bonding plate and the end wall bonding plate and the wall. The higher the fit between the measurement start point and the measurement end point and the wall, the more it can ensure that the device is consistent with the tunnel wall offset angle, thereby achieving the accuracy of tunnel angle measurement.

[0015] 3. The utility model sets a support plate. When there is an angle between the support plate and the fixed base, it can represent that the wall is not completely perpendicular to the ground. The device can visually observe the change trend of the support plate 21, and the angle of the wall can be obtained by measuring again with a plumb line. Compared with the angle between the horizontal walls measured by a ruler, the device measures the spatial angle between two positions, and observes and measures the angle between the vertical wall and the ground, which is an effect that cannot be achieved by the ruler measurement method. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall top view structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the connection structure between the rotating support rod and the main support rod of the utility model.

[0018] Figure 3 It is a schematic diagram of the fixed base structure of the utility model.

[0019] Figure 4 It is a schematic diagram of the telescopic frame structure of the utility model.

[0020] Figure 5 It is a schematic diagram of the structure of the measuring and positioning assembly and the universal wheel base of the utility model.

[0021] Figure 6 This is a schematic diagram of the connection structure of the angle measuring instrument of the utility model.

[0022] In the figure: 1. fixed end main body assembly; 11. main body support rod; 111. top connection piece; 1111. fixing groove; 112. middle connection piece; 113. bottom connection piece; 12. bearing; 13. starting wall bonding plate; 2. support platform assembly; 21. support plate; 22. spring; 3. connecting shaft; 4. mobile measuring end mechanism; 41. rotating support rod; 411. upper connection piece; 412. lower connection piece; 42. telescopic frame; 421. fixed sleeve; 422. mobile sleeve; 423. center connection piece; 43. measuring and positioning assembly; 431. end wall bonding plate; 5. angle measuring instrument; 6. fixed base; 7. universal wheel base; 8. mobile frame. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-6The utility model provides an embodiment: an angle measuring device for tunnel construction, including a fixed end main body component 1, a main body support rod 11, a top connecting piece 111, a fixing groove 1111, a middle connecting piece 112, a bottom connecting piece 113, a bearing 12, a starting wall bonding plate 13, a support platform component 2, a support plate 21, a spring 22, a connecting shaft 3, a mobile measuring end mechanism 4, a rotating support rod 41, an upper connecting piece 411, a lower connecting piece 412, a telescopic frame 42, a fixed sleeve 421, a mobile sleeve 422, a central connecting piece 423, a measuring and positioning component 43, a terminal wall bonding plate 431, an angle measuring instrument 5, a fixed base 6, a universal wheel base 7 and a mobile frame 8.

[0025] like Figure 1-Figure 6 As shown, the angle measuring instrument 5 is installed on the fixed end main body component 1, the fixed end main body component 1 includes a main body support rod 11 and a starting wall bonding plate 13, the main body support rod 11 is rotatably connected to the mobile measuring end mechanism 4 through a connecting shaft 3, the mobile measuring end mechanism 4 includes a rotating support rod 41, a telescopic frame 42 and a measuring positioning component 43, and the telescopic frame 42 is installed in multiple groups between the rotating support rod 41 and the measuring positioning component 43.

[0026] like Figure 2 and Figure 3 As shown, the bottom of the fixed end main body component 1 is fixedly connected to the support platform component 2, and the support platform component 2 includes a support plate 21 and a spring 22, and the spring 22 is evenly distributed at the bottom of the support plate 21. The bottom of the support platform component 2 below the fixed end main body component 1 is fixedly connected to the fixed base 6. The starting wall bonding plate 13 is located on the side of the main support rod 11 that contacts the wall. Move the fixed base 6 of the device to the starting measurement position of the tunnel and approach the side of the tunnel wall so that the starting wall bonding plate 13 of the fixed end main body component 1 contacts the wall. When the tunnel wall is not completely vertical, under the action of the support platform component 2, the spring 22 is deformed, and the support plate 21 can adjust the angle of the entire fixed end main body component 1, improve the degree of fit between the starting wall bonding plate 13 and the wall, and the position of the starting wall bonding plate 13 represents the reference direction of the measurement. At the same time, when there is an angle between the support plate 21 and the fixed base 6, it can represent that the wall is not completely perpendicular to the ground. The device can intuitively observe the change trend of the support plate 21, and the angle of the wall can be obtained by measuring again using a plumb line. Compared with measuring the angle between horizontal walls with a ruler, this device measures the spatial angle between two positions, and observes and measures the angle between the vertical wall and the ground, which is an effect that cannot be achieved by measuring with a ruler.

[0027] like Figure 5As shown, the universal wheel base 7 is fixedly connected to the bottom of the support platform assembly 2 below the measuring and positioning assembly 43. The operator manually pulls the mobile frame to move the universal wheel base 7, extends the telescopic frame 42, and rotates the support rod 41 to rotate the angle, so that the measuring and positioning assembly 43 reaches the position of the angle to be measured in the tunnel.

[0028] like Figure 4 As shown, the telescopic frame 42 includes a fixed sleeve 421, a movable sleeve 422 and a central connecting member 423. The fixed sleeve 421 and the movable sleeve 422 are respectively arranged on both sides of the central connecting member 423. The movable sleeve 422 and the central connecting member 423 are respectively grooved on both sides of the top and bottom. The movable sleeve 422 is slidably connected to the central connecting member 423, and the fixed sleeve 421 is slidably connected to the movable sleeve 422. When the telescopic frame 42 is in a closed state, the movable sleeve 422 and the central connecting member 423 are inside the fixed sleeve 421, and the fixed sleeves 421 on both sides are connected; when the telescopic frame 42 is in an open state, the movable sleeve 422 and the central connecting member 423 are slidably extended to increase the overall length of the telescopic frame 42. During the movement of the measuring and positioning component 43, the telescopic frame 42 changes from a closed state to an open state, thereby changing the moving distance of the measuring and positioning component 43. By measuring the positioning component 43 at different positions, the angles between different tunnel positions can be measured, and the measurement range is increased. It is no longer an angle measurement between a single distance, which improves the practicality of tunnel angle measurement. After use, the telescopic frame 42 is closed to reduce the volume of the entire device, making the entire device easier to move.

[0029] like Figure 5 As shown, the bottom of the measuring and positioning component 43 is fixedly connected to the supporting platform component 2, and the side of the measuring and positioning component 43 in contact with the wall is provided with an end wall bonding plate 431. After the measuring and positioning component 43 is moved to the tunnel angle measurement position, the universal wheel base 7 is moved close to the side of the tunnel wall, and the end wall bonding plate 431 is in contact with the wall. When the tunnel wall is not completely vertical, under the action of the supporting platform component 2, the spring 22 is deformed, and the supporting plate 21 can adjust the angle of the entire measuring and positioning component 43, thereby improving the fit between the end wall bonding plate 431 and the wall. The higher the conformity between the measuring starting point and the measuring end point and the wall, the more it can ensure that the offset angle of the device is consistent with the tunnel wall, thereby achieving the accuracy of the tunnel angle measurement.

[0030] like Figure 2As shown, the main support rod 11 includes a top connection member 111, a middle connection member 112 and a bottom connection member 113, and the top connection member 111, the middle connection member 112 and the bottom connection member 113 are all annular structures, and the inner sides are respectively provided with bearings 12, and the bearings 12 are fixed on the connecting shaft 3; the rotating support rod 41 includes an upper connection member 411 and a lower connection member 412, and the connecting shaft 3 is plugged and connected with the upper connection member 411 and the lower connection member 412; the rotating support rod 41 is rotatably connected with the main support rod 11. When the end wall bonding plate 431 of the measuring and positioning component 43 is bonded to the wall, the moving measuring end mechanism 4 is rotated as a whole based on the position of the fixed end main body component 1. When there is no angle between the two positions of the tunnel measurement, the direction of the fixed end main body component 1 to the wall is perpendicular to the direction of the moving measuring end mechanism 4, and when there is an angle between the two positions of the tunnel measurement, the direction of the fixed end main body component 1 to the wall is not perpendicular to the direction of the moving measuring end mechanism 4.

[0031] like Figure 6 As shown, a fixing groove 1111 is provided above the top connecting member 111, the housing of the angle measuring instrument 5 is fixed in the fixing groove 1111, and the pointer of the angle measuring instrument 5 is fixedly connected to the top of the connecting shaft 3. Before measurement, the moving measuring end mechanism 4 is perpendicular to the direction of the fixed end main body component 1 toward the wall, and the starting position of the pointer of the angle measuring instrument 5 is also perpendicular to the direction of the fixed end main body component 1 toward the wall. The direction of the pointer of the angle measuring instrument 5 is always consistent with the direction of the moving measuring end mechanism 4. After the position of the end wall bonding plate 431 is determined, the staff observes the changes of the angle measuring instrument 5 to obtain the angles measured at two positions in the tunnel.

[0032] The above is only an embodiment of the utility model, and the common sense such as the known specific structure and characteristics in the scheme is not described too much here. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model. Any figure mark in the claims should not be regarded as limiting the claims involved.

Claims

1. An angle measuring device for tunnel construction, comprising an angle measuring instrument (5), characterized in that: The angle measuring instrument (5) is mounted on a fixed end main body component (1), the fixed end main body component (1) comprising a main body support rod (11) and a starting wall bonding plate (13), the main body support rod (11) being rotatably connected to a mobile measuring end mechanism (4) via a connecting shaft (3), the mobile measuring end mechanism (4) comprising a rotating support rod (41), a telescopic frame (42) and a measuring positioning component (43), the telescopic frame (42) being mounted in multiple groups between the rotating support rod (41) and the measuring positioning component (43).

2. The angle measuring device for tunnel construction according to claim 1, characterized in that: The main support rod (11) comprises a top connecting piece (111), a middle connecting piece (112) and a bottom connecting piece (113); the top connecting piece (111), the middle connecting piece (112) and the bottom connecting piece (113) are all annular structures and are respectively provided with bearings (12) on the inner sides thereof; the bearings (12) are fixed on the connecting shaft (3); the rotating support rod (41) comprises an upper connecting piece (411) and a lower connecting piece (412); the connecting shaft (3) is plug-connected with the upper connecting piece (411) and the lower connecting piece (412); the rotating support rod (41) is rotatably connected to the main support rod (11).

3. The angle measuring device for tunnel construction according to claim 2, characterized in that: A fixing groove (1111) is provided above the top connecting member (111), a housing of the angle measuring instrument (5) is fixed in the fixing groove (1111), and a pointer of the angle measuring instrument (5) is fixedly connected to the top end of the connecting shaft (3).

4. The angle measuring device for tunnel construction according to claim 1, characterized in that: The telescopic frame (42) comprises a fixed sleeve (421), a movable sleeve (422) and a central connecting piece (423); the fixed sleeve (421) and the movable sleeve (422) are respectively arranged on both sides of the central connecting piece (423); the movable sleeve (422) and the central connecting piece (423) are respectively grooved on both sides of the top and bottom; the movable sleeve (422) is slidably connected to the central connecting piece (423); and the fixed sleeve (421) is slidably connected to the movable sleeve (422).

5. The angle measuring device for tunnel construction according to claim 1, characterized in that: The starting wall bonding plate (13) is located on the side of the main support rod (11) that contacts the wall, and the side of the measuring and positioning component (43) that contacts the wall is provided with an end wall bonding plate (431).

6. The angle measuring device for tunnel construction according to claim 1, characterized in that: The bottoms of the fixed end main body component (1) and the measuring and positioning component (43) are respectively fixedly connected to a support platform component (2), and the support platform component (2) comprises a support plate (21) and springs (22), and the springs (22) are evenly distributed at the bottom of the support plate (21).

7. The angle measuring device for tunnel construction according to claim 6, characterized in that: A fixed base (6) is fixedly connected to the bottom of the support platform assembly (2) below the fixed end main body assembly (1), and a universal wheel base (7) is fixedly connected to the bottom of the support platform assembly (2) below the measurement and positioning assembly (43).

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