A tool for detecting the size of steel cage of shield segment

Abstract

A tool for detecting the size of a steel cage of a shield segment, comprising a measuring platform, various measuring plates, gears and racks; the measuring platform is a platform for placing all measuring plates, on which gears are arranged; the width measuring plate is located on both sides of the measuring platform and the arc measuring plate; the racks are distributed on the inner side of the width measuring plate and mesh with the gears; a telescopic hole and a pointer sliding groove are opened on the top of the width measuring plate, and an arc length scale is arranged below the pointer sliding groove; limit blocks are arranged on both sides of the measuring platform, and a width scale is arranged on the inner side of the limit blocks; a sliding groove is arranged on the arc measuring plate; a height measuring plate is arranged on the upper part of the width measuring plate, on which a telescopic rod is arranged, and the telescopic rod cooperates with the telescopic hole on the top of the width measuring plate, and a height scale is arranged on the middle telescopic rod; the arc length measuring plate cooperates with the sliding groove on the arc measuring plate; and telescopic pointers are arranged on both sides of the arc length measuring plate. The tool can accurately measure all data at one time, and eliminates the traditional manual hand-pulling tape measurement.

Description

Technical field:

[0001] The invention belongs to the technical field of engineering machinery design, and particularly relates to the technical field of size detection tooling, and specifically, is a tooling used for detecting the size of a steel cage of a shield segment. Background technology:

[0002] In the shield method of subway tunnel construction, the shield segment is responsible for resisting soil pressure and water pressure and forming a traffic space, and the concrete protective layer of the segment is the focus of quality control. The segment concrete protective layer has the following main functions: first, it ensures that the steel bars work together with the surrounding concrete, so that the steel bars can fully exert the strength required by the calculation; second, it prevents the steel bars from rusting and ensures the designed service life of the segment; third, it prevents the segment from collapsing due to a sharp loss of structural bearing capacity under high temperature conditions or in the event of a fire.

[0003] At present, pipe segments are cast in molds, and the size of the molds is fixed, so the thickness of the concrete cover can only be guaranteed by ensuring the accuracy of the steel cage size. The traditional finished steel cage size inspection is random sampling, and it is difficult to ensure the accuracy of the steel cage size by manual measurement with a tape measure. Summary of the invention:

[0004] The technical problem to be solved by the present invention is to provide a tool for detecting the size of a shield segment reinforcement cage, which can accurately measure all data at one time and eliminate the traditional manual hand-pulled tape measure measurement.

[0005] In order to achieve the above object, the present invention adopts the following technical solution:

[0006] The present invention provides a tool for detecting the size of a steel cage of a shield segment, the tool comprising a measuring platform, a measuring plate, a gear and a rack, the measuring plates comprising a radian measuring plate, a width measuring plate, a height measuring plate and an arc length measuring plate; the measuring platform is a placement platform for all measuring plates, and a gear is arranged on the measuring platform; two width measuring plates are arranged, which are respectively located on both sides of the measuring platform and the radian measuring plates; the rack is distributed on the inner side of the width measuring plate and meshes with the gear; a telescopic hole and a pointer sliding groove are opened on the top of each width measuring plate, and the pointer slides An arc length scale is provided below the moving groove; limit blocks are provided on both sides of the measuring platform, and width scales are provided on the inner sides of the limit blocks; an arc measuring plate is fixed between the two width measuring plates, and a sliding groove is provided on the plate; a height measuring plate is provided, which is arranged on the upper part of the width measuring plate, and a telescopic rod is provided on the plate, and the telescopic rod cooperates with the telescopic hole on the top of the width measuring plate, and a height scale is provided on the middle telescopic rod; the arc length measuring plate cooperates with the sliding groove on the arc measuring plate; the arc length measuring plate is fitted to the steel cage with a bevel; telescopic pointers are provided on both sides of the arc length measuring plate.

[0007] Four threaded feet are arranged under the measuring platform.

[0008] The width measuring plate is semicircular.

[0009] The top of each width measuring plate is provided with three telescopic holes and a pointer sliding groove.

[0010] The arc measuring plate is a standard fixed plate and cannot be adjusted.

[0011] The curvature of the curvature measuring plate is consistent with the inner curvature of the steel cage.

[0012] The height measuring plate is an arc-shaped plate.

[0013] The curvature of the height measuring plate is consistent with the outer curvature of the steel cage.

[0014] The height measuring plate is provided with three telescopic rods.

[0015] The arc length measuring plate is a rectangular plate, which cooperates with the sliding groove on the arc measuring plate through a screw rod; the arc length measuring plate can rotate around the screw rod and is fixed by the elastic force of the spring to fit the steel cage with a bevel.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention is simple and convenient to use, and can obtain all data in one measurement, with accurate data, eliminating the traditional steps of pulling the measuring tape by hand for many times, thereby improving detection efficiency and data accuracy. Description of the drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the gear meshing structure of the present invention;

[0020] Figure 3 is a cross-sectional view of the arc length measurement plate connection of the present invention;

[0021] Figure 4 is a cross-sectional view of the sliding groove of the arc length measuring plate of the present invention;

[0022] Figure 5 yes Figure 1 A partial enlarged schematic diagram of the width scale;

[0023] Figure 6 yes Figure 1 A partial enlarged schematic diagram of the arc length scale;

[0024] Figure 7 yes Figure 1 A partial enlarged schematic diagram of the height scale;

[0025] Figure 8 It is a schematic diagram of the use status of the present invention.

[0026] Reference numerals:

[0027] 1- measuring platform, 2- arc measuring plate, 3- width measuring plate, 4- height measuring plate, 5- arc length measuring plate, 6- gear, 7- rack, 8- steel cage.

[0028] 1.1- Limit block, 1.2- Width scale, 1.3- Support foot.

[0029] 2.1- Sliding slot.

[0030] 3.1- Telescopic hole, 3.2- Pointer sliding slot, 3.3- Arc length scale.

[0031] 4.1- Telescopic rod, 4.2- Height scale.

[0032] 5.1-pointer, 5.2-bolt hole, 5.3-screw, 5.4-washer, 5.5-spring. Specific implementation method:

[0033] The present invention is further described below in conjunction with specific implementation methods. The specific implementation methods are further descriptions of the principles of the present invention and do not limit the present invention in any way. Technologies that are the same or similar to the present invention do not exceed the scope of protection of the present invention.

[0034] See also Figure 1-Figure 8The present invention provides a tool for detecting the size of a steel cage of a shield segment, which includes a measuring platform 1, a measuring plate, a gear 6 and a rack 7. The measuring plate includes an arc measuring plate 2, a width measuring plate 3, a height measuring plate 4 and an arc length measuring plate 5. The measuring platform 1 is a placement platform for all measuring plates. A gear 6 is provided on the measuring platform 1. Four threaded legs 1.3 are provided under the measuring platform 1. The thread height can be adjusted individually to adapt to different ground levels. The width measuring plate 3 is semicircular, and there are two of them, which are located on both sides of the measuring platform 1 and the two sides of the arc measuring plate 2 respectively; the rack 7 is distributed on the inner side of the width measuring plate 3, and meshes with the gear 6 on the measuring platform 1. The width measuring plates 3 on both sides of the measuring platform 1 are synchronized to increase or decrease in the opposite direction through the meshing of the gear 6 and the rack 7 to measure the width value of the steel cage 8 of different widths; three telescopic holes 3.1 and a pointer sliding groove 3.2 are opened on the top of each width measuring plate 3, and the telescopic holes 3.1 cooperate with the telescopic rod 4.1 on the height measuring plate 4 to realize the up and down telescoping of the height measuring plate 4; an arc length scale 3.3 is provided below the pointer sliding groove 3.2 to read the arc length value. Limit blocks 1.1 are provided on both sides of the measuring platform 1 to limit the position of the width measuring plate 3 to prevent the width measuring plate 3 from exceeding the maximum sliding area, and a width scale 1.2 is provided inside the limit block 1.1 to read the width value. The radian measuring plate 2 is a standard fixed plate, which cannot be adjusted and is fixed between the two width measuring plates 3. The radian size of the radian measuring plate 2 is consistent with the size of the inner radian surface of the steel cage 8. The radian measuring plate 2 is provided with a sliding groove 2.1. When measuring, the steel cage 8 is placed on the radian measuring plate 2, and the overlap gap is used to measure whether the radian of the steel cage 8 meets the requirements. The height measuring plate 4 is an arc-shaped plate, which is arranged on the upper part of the width measuring plate 3. The radian size of the height measuring plate 4 is consistent with the size of the outer radian surface of the steel cage 8. Three telescopic rods 4.1 are arranged on the height measuring plate 4. The telescopic rods 4.1 cooperate with the telescopic holes 3.1 at the top of the width measuring plate 3. The middle telescopic rod 4.1 is provided with a height scale 4.2 to read the height value. The height measuring plate 4 can be pulled up and down through the shaft hole to measure the specific height value. The arc length measuring plate 5 is a rectangular plate, and the sliding of the arc length measuring plate 5 is achieved by the cooperation of the screw 5.3 and the sliding groove 2.1 on the arc measuring plate 2; the arc length measuring plate 5 can rotate around the screw 5.3 and be fixed by the elastic force of the spring 5.5, so as to fit the steel cage 8 with a bevel; telescopic pointers 5.1 are arranged on both sides of the arc length measuring plate 5, and the arc length value can be read by pulling out the pointer 5.1. The arc length measuring plate 5 is a sliding type, and the specific arc length value is measured by the cooperation of the card slot.

[0035] The working process of the present invention is as follows:

[0036] During measurement, pull the width measuring plate 3 outward to the maximum width limit block 1.1 (to avoid serious collision and damage to the accuracy when hoisting the steel cage 8), hoist the inner arc surface of the steel cage 8 downward and place it on the arc measuring plate 2, pull out the height measuring plate 4, push the width measuring plate 3 inward to the side of the steel cage 8, and then lower the height measuring plate 4 to the outer arc surface of the steel cage 8, slide the arc length measuring plate 5 to fit the side of the steel cage 8, pull out the reading pointer 5.1, read the height value through the height scale 4.2, read the width value through the width scale 1.2, read the arc length value through the arc length scale 3.3, and judge the arc by observing the gap between the inner arc surface of the steel cage 8 and the arc measuring plate 2. When the measurement is completed, pull the width measuring plate 3 outward to the maximum width limit block 1.1, lower the height measuring plate 4 to the top of the width measuring plate 3, hoist the steel cage 8, and then push the width measuring plate 3 to the minimum position to return to its original position.

Claims

1. A tool for detecting the size of a shield segment reinforcement cage, characterized by: The tooling comprises a measuring platform (1), a measuring plate, a gear (6) and a rack (7); the measuring plates comprise a radian measuring plate (2), a width measuring plate (3), a height measuring plate (4) and an arc length measuring plate (5); the measuring platform (1) is a platform for placing all the measuring plates, and a gear (6) is arranged on the measuring platform (1); the width measuring plate (3) is semicircular, and two of them are arranged, respectively located on two sides of the measuring platform (1) and two sides of the radian measuring plate (2); the rack (7) is arranged on the two sides of the measuring platform (1) and the two sides of the radian measuring plate (2); The width measuring plate (3) is arranged on the inner side of the width measuring plate (3) and meshes with the gear (6); three telescopic holes (3.1) and a pointer sliding groove (3.2) are opened on the top of each width measuring plate (3), and arc length scales (3.3) are arranged below the pointer sliding groove (3.2); limit blocks (1.1) are arranged on both sides of the measuring platform (1), and width scales (1.2) are arranged on the inner side of the limit blocks (1.1); the arc measuring plate (2) is fixed between the two width measuring plates (3), and a The invention discloses a method for measuring the height of a steel cage (8) and a method for measuring the height of a steel cage (8). The method comprises: providing a sliding groove (2.1); the radian measuring plate (2) is a standard fixed plate and cannot be adjusted; the radian size of the radian measuring plate (2) is consistent with the size of the inner radian surface of the steel cage (8); the height measuring plate (4) is a curved plate, the radian size of which is consistent with the size of the outer radian surface of the steel cage (8); the height measuring plate (4) is arranged on the upper part of the width measuring plate (3), and three telescopic rods (4.1) are arranged on the height measuring plate (4); the telescopic rods (4.1) are connected to the corresponding telescopic holes ( 3.1), a height scale (4.2) is arranged on a telescopic rod (4.1) in the middle; the arc length measuring plate (5) is a rectangular plate, and the arc length measuring plate (5) is matched with a sliding groove (2.1) on the arc measuring plate (2) through a screw rod (5.3); the arc length measuring plate (5) can rotate around the screw rod (5.3), and is fixed by the elastic force of a spring (5.5) to fit the steel cage (8) with a bevel; telescopic pointers (5.1) are arranged on both sides of the arc length measuring plate (5).

2. The tooling for detecting the size of the steel cage of a shield segment according to claim 1 is characterized by: Four threaded support feet (1.3) are arranged under the measuring platform (1).

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