Tunnel height measuring device for tunnel subway construction

Abstract

The utility model discloses a tunnel height measuring device for tunnel subway construction, and relates to the technical field of subway construction. The device comprises a mounting column, a supporting assembly is arranged at the bottom of the mounting column, and a measuring assembly is further arranged at the front end of the mounting column; the supporting assembly comprises a bottom plate located below the mounting column, and the upper surface of the bottom plate is rotationally connected with a mounting plate. According to the utility model, the moving direction of the mounting column is adjusted through the rotary connection between the bottom plate and the mounting plate, and the mounting column is driven to move through the first screw rod and the first sliding block, so that the problem that the measurement position is inconvenient to finely adjust in the prior art is solved; meanwhile, the H-shaped frame is driven to rotate in the Y-Z-axis direction through movable connection between the mounting arm and the mounting column, the H-shaped frame is driven to rotate in the X-Z-axis direction through movable connection between the U-shaped frame and the mounting arm, and the problem that in the prior art, the levelness of a measuring structure is inconvenient to adjust is solved.

Description

Technical Field

[0001] This utility model belongs to the field of subway construction technology, and in particular relates to a tunnel height measuring device for subway construction. Background Technology

[0002] Subways are a common mode of transportation that can greatly alleviate urban traffic congestion. During the construction of subways, it is usually necessary to measure the height of subway tunnels. To facilitate the measurement of the height of subway tunnels, tunnel height measuring devices are usually used.

[0003] A document with publication number CN216593105U discloses a tunnel height detection mechanism for subway construction that is easy to move and adjust. The mechanism includes a base, a counterweight fixedly installed inside the base, casters rotatably installed at the bottom of the base, an installation sleeve fixedly installed at the top of the base, a lifting installation column fixedly installed at the top of the installation sleeve, a hand crank rotatably installed on the surface of the installation sleeve, a push component fixedly installed on one side of the installation sleeve, and a chain rotatably installed inside the installation sleeve, with gears meshing on the inner side of the chain.

[0004] However, it still has the following drawbacks in practical use:

[0005] The tunnel height detection mechanism mentioned above uses a base to install the telescopic rod and other measuring structures, and uses pulleys at the bottom of the base to facilitate the movement of the entire structure. However, during use, because the base has a counterweight installed inside, the overall mass of the structure is large, making it difficult to make fine adjustments to the measuring position, and its practicality is poor.

[0006] The tunnel height detection mechanism described above has a telescopic sleeve fixedly installed on the top of the mounting block. A telescopic rod is slidably installed inside the telescopic sleeve, and measuring crossbar one and measuring crossbar two are slidably installed inside the mounting block. The tunnel height is measured by the telescopic rod, and the tunnel width is measured by measuring crossbar one and measuring crossbar two. However, during use, it is not convenient to adjust the levelness of the telescopic rod, measuring crossbar one, and measuring crossbar two, and the tunnel ground is not flat, resulting in poor accuracy of the measurement results.

[0007] To address these issues, we provide a tunnel height measuring device for subway construction. Utility Model Content

[0008] The purpose of this utility model is to provide a tunnel height measuring device for subway construction. The device adjusts the movement direction of the mounting column through a rotating connection between the base plate and the mounting plate, and moves the mounting column via a first lead screw and a first slider, solving the problem of inconvenient fine-tuning of the measurement position in existing devices. Simultaneously, the movable connection between the mounting arm and the mounting column enables the H-shaped frame to rotate in the YZ axis direction, and the movable connection between the U-shaped frame and the mounting arm enables the H-shaped frame to rotate in the XZ axis direction, solving the problem of inconvenient adjustment of the levelness of the measuring structure in existing devices.

[0009] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0010] This utility model is a tunnel height measuring device for subway construction, including a mounting column, a support component at the bottom of the mounting column, and a measuring component at the front end of the mounting column.

[0011] The support assembly includes a base plate located below the mounting column, a mounting plate rotatably connected to the upper surface of the base plate, a first lead screw rotatably connected to the upper surface of the mounting plate via a first mounting seat, a first handwheel fixedly connected to both ends of the first lead screw, a first slider threaded onto the outer wall of the first lead screw, and the top of the first slider fixedly connected to the bottom end of the mounting column.

[0012] The measuring assembly includes an H-shaped frame located at the front end of the mounting column. An upper extension plate and a lower extension plate are movably connected to the upper and lower parts of the H-shaped frame, respectively. A mounting arm is provided at the rear end of the H-shaped frame. A second fixing rod is fixedly connected to the rear end of the mounting arm. The end of the second fixing rod away from the mounting arm passes through the mounting column and is threaded with a second fastening nut. A U-shaped seat is fixedly connected to the front end of the mounting arm. A rotating block is rotatably connected inside the U-shaped seat. A third fixing rod is fixedly connected to the outer walls of both sides of the rotating block. The end of the third fixing rod away from the rotating block passes through the outer walls of both sides of the U-shaped seat and is threaded with a third fastening nut. A U-shaped frame is fixedly connected to the front end of the rotating block. The longitudinal support arms on both sides of the U-shaped frame are fixedly connected to the outer walls of both sides of the H-shaped frame, respectively.

[0013] A further feature of this invention is that a mounting rod is fixedly connected to the center of the lower surface of the mounting plate, and the bottom end of the mounting rod rotates through the base plate and is threaded with a fixing disc.

[0014] A further feature of this invention is that: a first rotating plate is rotatably connected to both outer walls of the mounting plate, and a through groove is provided at the lower end of each of the first rotating plates; a first fixing rod that cooperates with the through groove is fixedly connected to the outer walls of the base plate; and a first fastening nut is threaded onto the end of each first fixing rod away from the base plate.

[0015] A further feature of this invention is that pulleys are fixedly connected to all four sides of the lower surface of the base plate.

[0016] A further feature of this invention is that: protrusions are welded to the front and rear ends of the upper surface of the mounting plate in a transverse direction, and grooves are opened at the front and rear ends of the bottom of the first slider in a transverse direction, with the top of the protrusions movably connected to the inside of the grooves.

[0017] The present invention is further configured such that: the upper and lower sides of the inner walls on both sides of the H-shaped frame are provided with vertical grooves; the bottom sides of the H-shaped frame are rotatably connected with second rotating plates; the outer walls on both sides of the upper extension plate and the lower extension plate are fixedly connected with connecting blocks; the free ends of the connecting blocks are movably connected to the inside of the grooves; and the ends of the upper extension plate and the lower extension plate located on the outside of the H-shaped frame are fixedly connected with abutment rods.

[0018] A further feature of this invention is that a horizontal bubble is fitted and fixed at the center of the front end face of the H-shaped frame.

[0019] A further feature of this invention is that a second lead screw is rotatably connected to the rear end face of the H-shaped frame via a second mounting base, a second handwheel is fixedly connected to the bottom end of the second lead screw, a second slider is threaded onto the outer wall of the second lead screw, and the front end face of the second slider is fixedly connected to the lower end face of the upper extension plate.

[0020] This utility model has the following beneficial effects:

[0021] This invention, by setting up a support assembly, allows the first rotating plate to be rotated, separating it from the first fixed rod. An external force is then applied to the mounting plate, causing it to rotate the first lead screw and the mounting column. This allows for adjustment of the mounting column's movement direction. Furthermore, rotating the first handwheel rotates the first lead screw, which in turn moves the mounting column via the first slider, enabling adjustment of the measurement position. This facilitates fine-tuning of the measurement position, making it suitable for height measurement in subway tunnels and improving its practicality.

[0022] This invention, by setting up a measuring component, allows for the separation of the second fastening nut from the mounting post by tightening it, and the H-frame to rotate in the YZ axis direction via the mounting arm. Then, tightening the third fastening nut separates it from the U-shaped seat, and the H-frame to rotate in the XZ axis direction via the U-shaped frame. This enables the adjustment of the H-frame's levelness, facilitating the measurement of tunnel height and width by the upper and lower extension plates and improving measurement accuracy. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of a tunnel height measuring device used in subway construction.

[0025] Figure 2 This is a schematic diagram of the structure of the support component of this utility model.

[0026] Figure 3 This is a structural disassembly diagram of the mounting plate of this utility model.

[0027] Figure 4 This is a schematic diagram of the installation of the first lead screw and the first slider of this utility model.

[0028] Figure 5 This is a schematic diagram of the structure of the measuring component of this utility model.

[0029] Figure 6 This is a structural disassembly diagram of the H-shaped frame of this utility model.

[0030] Figure 7 This is a structural disassembly diagram of the mounting arm and U-shaped frame of this utility model.

[0031] The attached diagram lists the components represented by each number as follows:

[0032] 1-Mounting column, 2-Support assembly, 201-Base plate, 201a-First fixing rod, 201b-First fastening nut, 201c-Pulley, 202-Mounting plate, 202a-Mounting rod, 202b-Fixing disc, 202c-First rotating plate, 202d-Through groove, 202e-Protrusion, 203-First lead screw, 203a-First mounting base, 203b-First handwheel, 204-First slider, 204a-Groove, 3-Measuring assembly, 301-H-shaped frame, 301a-Slide groove, 3 01b-Second rotating plate, 301c-Level bubble, 301d-Second mounting base, 302-Upper extension plate, 302a-Connecting block, 302b-Abutting rod, 303-Lower extension plate, 304-Second lead screw, 304a-Second handwheel, 304b-Second slider, 305-Mounting arm, 305a-Second fixing rod, 305b-Second fastening nut, 305c-U-shaped seat, 306-U-shaped frame, 306a-Rotating block, 306b-Third fixing rod, 306c-Third fastening nut. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Example 1

[0034] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this is the first embodiment of the present invention. This embodiment provides a tunnel height measuring device for subway construction, including a mounting column 1. A support assembly 2 is provided at the bottom of the mounting column 1. The support assembly 2 includes a base plate 201, a mounting plate 202, a first lead screw 203, and a first slider 204. The rotational connection between the base plate 201 and the mounting plate 202 enables the adjustment of the moving direction of the mounting column 1. The first lead screw 203 and the first slider 204 drive the mounting column 1 to move, solving the problem of the existing device being inconvenient for fine adjustment of the measurement position.

[0035] Specifically, the base plate 201 is located below the mounting column 1. The upper surface of the base plate 201 is rotatably connected to the mounting plate 202. The upper surface of the mounting plate 202 is rotatably connected to the first lead screw 203 via the first mounting seat 203a. Both ends of the first lead screw 203 are fixedly connected to the first handwheel 203b. The outer wall of the first lead screw 203 is threaded with a first slider 204. The top of the first slider 204 is fixedly connected to the bottom end of the mounting column 1. The base plate 201 is used to install the mounting plate 202 and other structures. The mounting plate 202 is used to install the first lead screw 203 and other structures and drive the first lead screw 203 and other structures to rotate, thereby adjusting the movement direction of the mounting column 1. The first lead screw 203 and the first slider 204 are used to drive the mounting column 1 to move. The first mounting seat 203a is used to install the first lead screw 203. The first handwheel 203b is used to facilitate the rotation of the first lead screw 203.

[0036] Furthermore, a mounting rod 202a is fixedly connected to the center of the lower surface of the mounting plate 202, and the bottom end of the mounting rod 202a rotates through the base plate 201 and is threaded with a fixing disc 202b.

[0037] The mounting plate 202 has a first rotating plate 202c rotatably connected to both outer walls of the mounting plate 202. The lower end of the first rotating plate 202c is provided with a through groove 202d. The outer walls of the base plate 201 are fixedly connected with a first fixing rod 201a that cooperates with the through groove 202d. The end of the first fixing rod 201a away from the base plate 201 is threaded with a first fastening nut 201b.

[0038] Pullers 201c are fixedly connected to all four sides of the lower surface of the base plate 201;

[0039] The upper surface of the mounting plate 202 has protrusions 202e welded horizontally at both the front and rear ends. The bottom of the first slider 204 has grooves 204a horizontally opened at both the front and rear ends. The top of the protrusion 202e is movably connected to the inside of the groove 204a.

[0040] The operation process of this embodiment is as follows: Rotate the first rotating plate 202c to separate the first rotating plate 202c from the first fixed rod 201a, and apply an external force to the mounting plate 202, so that the mounting plate 202 drives the first lead screw 203 and the mounting column 1 to rotate, thereby adjusting the movement direction of the mounting column 1. Then rotate the first handwheel 203b, which drives the first lead screw 203 to rotate. The first lead screw 203 drives the mounting column 1 to move through the first slider 204, thereby adjusting the measurement position. Example 2

[0041] Please see Figure 1 , Figure 5 , Figure 6 and Figure 7 As shown, this is the second embodiment of the present invention. This embodiment is based on the previous embodiment, but differs from the previous embodiment in that: a measuring component 3 is also provided at the front end of the mounting column 1. The measuring component 3 includes an H-shaped frame 301, an upper extension plate 302, a lower extension plate 303, a mounting arm 305, and a U-shaped frame 306. The movable connection between the mounting arm 305 and the mounting column 1 enables the H-shaped frame 301 to rotate in the YZ axis direction, and the movable connection between the U-shaped frame 306 and the mounting arm 305 enables the H-shaped frame 301 to rotate in the XZ axis direction, thus solving the problem of the existing inconvenience in adjusting the levelness of the measuring structure.

[0042] Specifically, the H-shaped frame 301 is located at the front end of the mounting post 1. An upper extension plate 302 and a lower extension plate 303 are movably connected to the upper and lower parts of the interior of the H-shaped frame 301, respectively. A mounting arm 305 is provided at the rear end of the H-shaped frame 301. A second fixing rod 305a is fixedly connected to the rear end of the mounting arm 305. The end of the second fixing rod 305a away from the mounting arm 305 passes through the mounting post 1 and is threaded with a second fastening nut 305b. A U-shaped seat 305c is fixedly connected to the front end face of the mounting arm 305. A rotating block 306a is rotatably connected inside the U-shaped seat 305c. A third fixing rod 306b is fixedly connected to both outer walls of the rotating block 306a. The end of the third fixing rod 306b away from the rotating block 306a passes through both outer walls of the U-shaped seat 305c and is threaded with a third fastening nut 306c. A U-shaped frame 306 is fixedly connected to the front end face of the rotating block 306a. The longitudinal support arms on both sides of the U-shaped frame 306 are fixedly connected to the outer walls of the H-shaped frame 301. The H-shaped frame 301 is used to install the upper extension plate 302 and the lower extension plate 303, etc., and the H-shaped frame 301 cooperates with the upper extension plate 302 and the lower extension plate 303. Plate 303 enables the measurement of tunnel height and width. When the H-frames 301 are vertically distributed, the tunnel height is the sum of the length of the H-frames 301, the length of the upper extension plate 302 located outside the H-frames 301, and the length of the lower extension plate 303 located outside the H-frames 301. When the H-frames 301 are horizontally distributed, the tunnel width is the sum of the length of the H-frames 301, the length of the upper extension plate 302 located outside the H-frames 301, and the length of the lower extension plate 303 located outside the H-frames 301. The mounting arm 305 is used to movably install the H-frames 301 on the mounting plate. The second fixing rod 305a and the second fastening nut 305b are used to movably mount the mounting arm 305 on the mounting column 1. The U-shaped seat 305c and the rotating block 306a are used to movably connect the mounting arm 305 and the U-shaped frame 306. The U-shaped frame 306 is used to movably mount the H-shaped frame 301 on the mounting arm 305. The third fixing rod 306b and the third fastening nut 306c are used to movably mount the rotating block 306a inside the U-shaped seat 305c.

[0043] The upper and lower sides of the inner walls of the H-shaped frame 301 are provided with vertical grooves 301a. The bottom sides of the H-shaped frame 301 are rotatably connected with second rotating plates 301b. The outer walls of the upper extension plate 302 and the lower extension plate 303 are fixedly connected with connecting blocks 302a. The free ends of the connecting blocks 302a are movably connected inside the grooves 301a. The ends of the upper extension plate 302 and the lower extension plate 303 located outside the H-shaped frame 301 are fixedly connected with abutment rods 302b.

[0044] A horizontal bubble 301c is fitted and fixed at the center of the front end face of the H-shaped frame 301;

[0045] A second lead screw 304 is rotatably connected to the rear end face of the H-shaped frame 301 via a second mounting base 301d. A second handwheel 304a is fixedly connected to the bottom end of the second lead screw 304. A second slider 304b is threaded onto the outer wall of the second lead screw 304. The front end face of the second slider 304b is fixedly connected to the lower end face of the upper extension plate 302.

[0046] The rest of the structure is the same as in Example 1.

[0047] The operation process of this embodiment is as follows: tighten the second fastening nut 305b to separate the second fastening nut 305b from the mounting post 1, and drive the H-shaped frame 301 to rotate in the YZ axis direction through the mounting arm 305. Then tighten the third fastening nut 306c to separate the third fastening nut 306c from the U-shaped seat 305c, and drive the H-shaped frame 301 to rotate in the XZ axis direction through the U-shaped bracket 306, thereby realizing the adjustment of the level of the H-shaped frame 301.

[0048] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0049] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, enabling those skilled in the art to better understand and utilize it.

Claims

1. A tunnel height measuring device for subway construction, comprising a mounting column (1), characterized in that: The bottom of the mounting column (1) is provided with a support component (2), and the front end of the mounting column (1) is also provided with a measuring component (3). The support assembly (2) includes a base plate (201) located below the mounting column (1), and a mounting plate (202) is rotatably connected to the upper surface of the base plate (201). The upper surface of the mounting plate (202) is rotatably connected to a first lead screw (203) via a first mounting seat (203a). Both ends of the first lead screw (203) are fixedly connected to a first handwheel (203b). A first slider (204) is threaded on the outer wall of the first lead screw (203), and the top of the first slider (204) is fixedly connected to the bottom end of the mounting column (1). The measuring component (3) includes an H-shaped frame (301) located at the front end of the mounting post (1), and an upper extension plate (302) and a lower extension plate (303) are movably connected to the upper and lower parts of the H-shaped frame (301) respectively. A mounting arm (305) is provided at the rear end of the H-shaped frame (301), and a second fixing rod (305a) is fixedly connected to the rear end of the mounting arm (305). The end of the second fixing rod (305a) away from the mounting arm (305) passes through the mounting post (1) and is threaded with a second fastening nut (305b). A U-shaped... The U-shaped base (305c) is rotatably connected to a rotating block (306a), and a third fixing rod (306b) is fixedly connected to both outer walls of the rotating block (306a). The end of the third fixing rod (306b) away from the rotating block (306a) passes through both outer walls of the U-shaped base (305c) and is threaded with a third fastening nut (306c). A U-shaped frame (306) is fixedly connected to the front end face of the rotating block (306a), and the longitudinal support arms on both sides of the U-shaped frame (306) are fixedly connected to both outer walls of the H-shaped frame (301).

2. The tunnel height measuring device for subway construction according to claim 1, characterized in that, A mounting rod (202a) is fixedly connected to the center of the lower surface of the mounting plate (202), and the bottom end of the mounting rod (202a) rotates through the base plate (201) and is threaded with a fixing plate (202b).

3. The tunnel height measuring device for subway construction according to claim 2, characterized in that, The mounting plate (202) has a first rotating plate (202c) rotatably connected to both outer walls of its two sides, and the lower end of the first rotating plate (202c) is provided with a through groove (202d). The bottom plate (201) has a first fixing rod (201a) fixedly connected to the outer walls of its four sides, which cooperates with the through groove (202d). The end of the first fixing rod (201a) away from the bottom plate (201) is threaded with a first fastening nut (201b).

4. The tunnel height measuring device for subway construction according to claim 3, characterized in that, The bottom surface of the base plate (201) is fixedly connected with pulleys (201c) around all four sides.

5. A tunnel height measuring device for subway construction according to claim 1, characterized in that, The upper surface of the mounting plate (202) has protrusions (202e) welded to the front and rear ends along the horizontal direction, and the bottom front and rear ends of the first slider (204) are provided with grooves (204a) along the horizontal direction, and the top of the protrusions (202e) is movably connected to the inside of the grooves (204a).

6. A tunnel height measuring device for subway construction according to claim 1, characterized in that, The upper and lower sides of the inner walls of the H-shaped frame (301) are provided with vertical grooves (301a), and the bottom sides of the H-shaped frame (301) are rotatably connected with second rotating plates (301b). The outer walls of the upper extension plate (302) and the lower extension plate (303) are fixedly connected with connecting blocks (302a), and the free ends of the connecting blocks (302a) are movably connected inside the grooves (301a). The ends of the upper extension plate (302) and the lower extension plate (303) located outside the H-shaped frame (301) are fixedly connected with abutment rods (302b).

7. A tunnel height measuring device for subway construction according to claim 6, characterized in that, A horizontal bubble (301c) is fitted and fixed at the center of the front end face of the H-shaped frame (301).

8. A tunnel height measuring device for subway construction according to claim 6, characterized in that, The rear end face of the H-shaped frame (301) is rotatably connected to a second lead screw (304) via a second mounting base (301d), and the bottom end of the second lead screw (304) is fixedly connected to a second handwheel (304a). A second slider (304b) is threaded on the outer wall of the second lead screw (304), and the front end face of the second slider (304b) is fixedly connected to the lower end face of the upper extension plate (302).

Images