Telescopic horizontal cross rod for duct piece measurement

Abstract

The utility model relates to the technical field of measurement, in particular to a telescopic horizontal cross rod for segment measurement, which replaces a horizontal steel ruler for measurement, improves the accuracy and timeliness of a device for measuring a segment numerical value, improves the segment measurement efficiency of the device and improves the practicability. Two protective plates are symmetrically and fixedly installed at the top end of the sliding groove, a limiting column is fixedly installed at the top end of each protective plate, every two symmetrical sliding blocks are fixedly connected through a connecting plate, and thickness measuring mechanisms are arranged on two connecting plates; length measuring mechanisms are arranged on the other two connecting plates; the thickness measuring mechanism comprises a limiting cylinder, a bottom plate is fixedly installed at the bottom end of the connecting column, a limiting rod is slidably installed in the limiting cylinder, a scale block is fixedly installed on the outer side wall of the limiting rod, and an indicator is fixedly installed on the outer side wall of the limiting cylinder.

Description

Technical Field

[0001] The present application relates to the technical field of measurement, and specifically relates to a retractable horizontal crossbar for segment measurement. Background Art

[0002] Segments are the main assembled components in shield tunneling. They are the innermost barrier of the tunnel, bearing the functions of resisting soil pressure, groundwater pressure, and some special loads. Shield segments are the permanent lining structure of shield tunnels. The quality of shield segments is directly related to the overall quality and safety of the tunnel, affecting the waterproof performance and durability of the tunnel. After the segments are assembled, it is necessary to measure the attitude of the segments in a timely manner. During the tunneling process, the operator needs to compare the actual segment attitude with the attitude of the guiding system and make timely adjustments. Sometimes, the floating of the segments can be known immediately, but during the tunneling process or when there are obstacles blocking, the segments cannot be measured, reducing the efficiency of segment measurement. Therefore, we propose a retractable horizontal crossbar for segment measurement to solve the above-mentioned problems. Utility Model Content

[0003] (1) Technical Problems to be Solved

[0004] In view of the deficiencies of the prior art, the present application provides a measurement method that replaces the horizontal steel ruler for measurement, improving the accuracy and timeliness of the measurement values of the segments by the device, improving the efficiency of segment measurement by the device, and improving the practicability of the retractable horizontal crossbar for segment measurement.

[0005] (2) Technical Solutions

[0006] To achieve the above object, the present application provides the following technical solution: A retractable horizontal crossbar for segment measurement, including a support plate. At the top of the chute, two guard plates are symmetrically and fixedly installed. At the top of each guard plate, a limit post is fixedly installed. A plurality of sliders are slidably installed on the two limit posts. Every two symmetric sliders are fixedly connected by a connecting plate. Among them, a thickness measurement mechanism is arranged on two connecting plates;

[0007] A length measurement mechanism is arranged on the other two connecting plates;

[0008] The thickness measurement mechanism includes a limit cylinder. The limit cylinder is fixedly installed at the top of the connecting plate. A connecting column is slidably installed in the middle area of the connecting plate. A bottom plate is fixedly installed at the bottom end of the connecting column. A limit rod is slidably installed inside the limit cylinder. The bottom end of the limit rod is fixedly connected to the top end of the connecting column. A chute is opened on the outer side wall of the limit cylinder. A scale block is slidably installed on the chute. The scale block is fixedly installed on the outer side wall of the limit rod. An index is fixedly installed on the outer side wall of the limit cylinder.

[0009] Preferably, the length measuring mechanism includes a baffle plate which is fixedly installed on one of the connecting plates. A through hole is horizontally formed on the outer side wall of one of the guard plates, and a scale is fixedly installed parallel to the top end of the through hole.

[0010] Furthermore, a first hole is formed at the top end of each baffle plate, and the bottom end of the baffle plate is slidably connected to the top end of the support plate.

[0011] Still further, a handle is fixedly installed at the top end of each limiting rod.

[0012] On the basis of the foregoing solution, two support columns are symmetrically and fixedly installed at the bottom end of the support plate, and a base is fixedly installed at the bottom end of each support column.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the present application provides a horizontally expandable crossbar for segment measurement, which has the following beneficial effects:

[0015] For the horizontally expandable crossbar for segment measurement, by sliding the connecting plate and then making the slider slide on the limiting column, the bottom area of the bottom plate is located above the segment. By pressing the limiting rod, the connecting column and the bottom plate are synchronously driven to move longitudinally. By contacting the bottom end of the bottom plate with the top end of the segment and observing the value on the scale block with the aid of the indicator, the thickness measurement operation of the segment is carried out, replacing the measurement method using a tape measure, improving the accuracy of the device for measuring the segment value, improving the efficiency of the device for measuring the segment, and improving the practicability. Description of the drawings

[0016] Figure 1 is a three-dimensional structural schematic diagram of the present application;

[0017] Figure 2 is of the present application Figure 1 the enlarged structural schematic diagram of part A therein;

[0018] Figure 3 is of the present application Figure 1 the enlarged structural schematic diagram of part B therein;

[0019] Figure 4 is of the present application Figure 1 the enlarged structural schematic diagram of part C therein.

[0020] Reference numerals in the drawings: 1, support plate; 2, guard plate; 3, limiting column; 4, slider; 5, connecting plate; 6, limiting cylinder; 7, limiting rod; 8, connecting column; 9, bottom plate; 10, chute; 11, scale block; 12, indicator; 13, baffle plate; 14, scale; 15, through hole; 16, first hole; 17, handle; 18, support column; 19, base. Detailed implementation manners

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0022] Embodiment

[0023] Please refer to Figures 1-4 , a retractable horizontal crossbar for segment measurement, including a support plate 1. Two guard plates 2 are symmetrically and fixedly installed at the top of the chute 10. A limit post 3 is fixedly installed at the top of each guard plate 2. A plurality of sliders 4 are slidably installed on the two limit posts 3. Every two symmetric sliders 4 are fixedly connected by a connecting plate 5. A thickness measurement mechanism is arranged on two of the connecting plates 5; a length measurement mechanism is arranged on the other two connecting plates 5; the length measurement mechanism includes a baffle 13. The baffle 13 is fixedly installed on one of the connecting plates 5. Two support columns 18 are symmetrically and fixedly installed at the bottom of the support plate 1. A base 19 is fixedly installed at the bottom of each support column 18. Through the installation of the support columns 18 and the bases 19, it is convenient to support the device. A through hole 15 is horizontally opened on the outer side wall of one of the guard plates 2. A scale 14 is fixedly installed parallel to the top of the through hole 15. Through the cooperation of the baffle 13, the scale 14 and the through hole 15, it is convenient to measure the length of the segment. A first hole 16 is opened at the top of each baffle 13. The bottom end of the baffle 13 is slidably connected to the top end of the support plate 1. By opening the first hole 16, it is convenient for the baffle 13 to slide on the top end of the support plate 1.

[0024] Please refer to Figures 1-4, the thickness measuring mechanism includes a limiting cylinder 6 which is fixedly installed at the top end of a connecting plate 5. A connecting column 8 is slidably installed in the middle area of the connecting plate 5. A bottom plate 9 is fixedly installed at the bottom end of the connecting column 8. A limiting rod 7 is slidably installed inside the limiting cylinder 6. The bottom end of the limiting rod 7 is fixedly connected to the top end of the connecting column 8. A sliding groove 10 is formed on the outer side wall of the limiting cylinder 6. A scale block 11 is slidably installed on the sliding groove 10. The scale block 11 is fixedly installed on the outer side wall of the limiting rod 7. An index 12 is fixedly installed on the outer side wall of the limiting cylinder 6. For the retractable horizontal crossbar used for segment measurement, by sliding the connecting plate, the slider slides on the limiting column at the same time, so that the bottom area of the bottom plate is located above the segment. By pressing the limiting rod, the connecting column and the bottom plate are driven to move longitudinally at the same time. By the bottom end of the bottom plate contacting the top end of the segment, and by using the index to assist in observing the value on the scale block, the thickness measurement operation of the segment is carried out, replacing the measurement method using a tape measure, improving the accuracy of the device for measuring the segment value, improving the efficiency of the device for measuring the segment, and improving the practicability.

[0025] Please refer to Figure 1 , it should also be noted that a handle 17 is fixedly installed at the top end of each limiting rod 7. By installing the handle 17, it is convenient to adjust the height of the limiting rod 7.

[0026] In summary, when the retractable horizontal crossbar used for segment measurement is in use, the segment is moved to the top end of the support plate 1. The baffle 13 is slid through the first hole 16. The segment is clamped by the two baffles 13. The length of the segment is measured numerically by the scale 14. The limiting rod 7 is moved longitudinally through the handle 17. While the limiting rod 7 is moving, the connecting column 8 and the bottom plate 9 are driven to press the segment at the same time. Then, the index 12 points to the value on the scale block 11, and the thickness measurement operation of the segment can be carried out.

[0027] Although the embodiments of the present application have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A retractable horizontal crossbar for segment measurement, comprising a support plate (1), characterized in that: At the top of the sliding groove (10), two guard plates (2) are symmetrically and fixedly installed. At the top of each guard plate (2), a limit post (3) is fixedly installed. A plurality of sliders (4) are slidably installed on the two limit posts (3). Between every two symmetric sliders (4), they are fixedly connected by a connecting plate (5). A thickness measuring mechanism is arranged on two of the connecting plates (5). A length measuring mechanism is arranged on another two connecting plates (5). The thickness measuring mechanism includes a limit cylinder (6). The limit cylinder (6) is fixedly installed at the top of the connecting plate (5). A connecting column (8) is slidably installed in the middle area of the connecting plate (5). A bottom plate (9) is fixedly installed at the bottom end of the connecting column (8). A limit rod (7) is slidably installed inside the limit cylinder (6). The bottom end of the limit rod (7) is fixedly connected to the top end of the connecting column (8). A sliding groove (10) is formed on the outer side wall of the limit cylinder (6). A scale block (11) is slidably installed on the sliding groove (10). The scale block (11) is fixedly installed on the outer side wall of the limit rod (7). An index (12) is fixedly installed on the outer side wall of the limit cylinder (6).

2. The retractable horizontal crossbar for segment measurement according to claim 1, wherein: The length measuring mechanism includes a baffle (13). The baffle (13) is fixedly installed on one of the connecting plates (5). A through hole (15) is horizontally formed on the outer side wall of one of the guard plates (2). A scale (14) is fixedly installed parallel to the top of the through hole (15).

3. The retractable horizontal crossbar for segment measurement according to claim 2, characterized in that: A first hole (16) is formed at the top of each baffle (13). The bottom end of the baffle (13) is slidably connected to the top end of the support plate (1).

4. The retractable horizontal crossbar for segment measurement according to claim 3, wherein: A handle (17) is fixedly installed at the top of each limit rod (7).

5. A retractable horizontal crossbar for segment measurement according to claim 4, characterized in that: Two support columns (18) are symmetrically and fixedly installed at the bottom end of the support plate (1). A base (19) is fixedly installed at the bottom end of each support column (18).

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