An auxiliary tool for bridge and tunnel measurement inspection

Abstract

This utility model discloses an auxiliary tool for bridge and tunnel measurement inspection using a ruler, relating to the field of ruler measurement inspection. It includes two mutually rotatably connected clamping plates and an elastic element mounted on a rotating shaft of the clamping plates for resetting the clamping plates. Each clamping plate includes a clamping portion and a force-bearing portion at an obtuse angle to the clamping portion. A magnetic element is provided on the inner side of the clamping portion. This addresses the problem of measurement errors that easily occur when measuring reinforcing bars or uneven structures such as the initial support surface during routine bridge and tunnel inspections.

Description

Technical Field

[0001] This utility model relates to the field of ruler measurement inspection, specifically, to an auxiliary tool for ruler measurement inspection of bridges and tunnels. Background Technology

[0002] In routine bridge and tunnel inspections, steel tape measures or rulers are frequently used to measure structural dimensions, such as the spacing of reinforcing bars in bridge piers, the spacing and exposed length of sonic logging tubes, the spacing of reinforcing bars in tunnel lining, the size of the reinforcing bar grid, the spacing of steel supports, and the exposed length of anchor bolts. The data is usually read from the horizontal line of sight, which inevitably introduces reading errors. This is especially true when measuring reinforcing bar spacing or grid dimensions, as the reinforcing bars are cylindrical, making the horizontal line of sight readings more prone to error. Current technology typically uses a 30cm steel ruler for auxiliary measurement, but this is often inconvenient in the complex environment of tunnels, particularly on uneven initial support surfaces. In such cases, the 30cm steel ruler fails to provide accurate measurement, and reading errors still occur. Utility Model Content

[0003] This invention provides an auxiliary tool for bridge and tunnel measurement, which solves the problem of measurement errors that easily occur when measuring steel bars or uneven structures on the initial support surface in the daily inspection of bridges and tunnels.

[0004] To achieve the above objectives, this utility model provides the following solution:

[0005] An auxiliary tool for bridge and tunnel measurement inspection includes two clamping plates rotatably connected to each other and an elastic element mounted on a rotating shaft of the clamping plates for resetting the clamping plates. The clamping plates include a clamping part and a force-receiving part at an obtuse angle to the clamping part. A magnetic element is provided on the inner side of the clamping part.

[0006] This utility model uses two mutually rotating clamping plates and a reset elastic element to form an auxiliary clamp, which is clamped on the measuring ruler. By moving the auxiliary clamp to contact the part to be measured, the reading on the measuring ruler is read, which can make more accurate readings, reduce the error caused by the eye-viewing method, and make the ruler measurement method more accurate.

[0007] Operating principle of the device: First, select the object to be measured, fix the initial end of the measuring ruler to the initial end of the object, then extend the measuring ruler close to the object, clamp the auxiliary tool onto the measuring ruler, so that the measuring ruler is clamped and attracted to the magnetic component. According to the preset measurement points on the object, move the position of the auxiliary tool on the measuring ruler so that the auxiliary tool corresponds one-to-one with the measurement points, and record the corresponding measurement readings. By using the auxiliary tool to match the measurement points with the readings on the measuring ruler, the readings are made more accurate.

[0008] Furthermore, the elastic element is a torsion spring, and the two ends of the torsion spring are respectively fixedly connected to the two force-receiving parts.

[0009] The auxiliary clamp is reset by a torsion spring, which clamps the measuring ruler tightly and prevents the auxiliary clamp from falling off.

[0010] Furthermore, the clamping plate also includes a measuring rod disposed on one side of the clamping part, the measuring rod being rotatably connected to the clamping part.

[0011] Because the measuring ruler needs to be straightened during measurement to reduce measurement errors, some special measurement points are far from the measuring ruler, such as the spacing of steel bars in bridge piers, the spacing of steel bars in tunnel linings, or the spacing of steel supports. During measurement, the auxiliary clamp is too far from the point to be measured and cannot play an auxiliary role. Therefore, by setting a measuring rod on one side of the auxiliary clamp and moving the measuring rod close to the point to be measured, the corresponding reading on the measuring ruler at the point to be measured can be determined. This makes the auxiliary clamp more adaptable and can also reduce measurement errors.

[0012] Furthermore, a groove is provided on the clamping part, and the measuring rod is installed in the groove.

[0013] The groove serves to protect the measuring rod and also protects it. Since the measuring rod has a certain thickness, directly installing it on the outside of the clamping part would cause the measuring surface of the measuring rod to shift, which is not conducive to accurate measurement. By installing it in the groove, the influence of the thickness of the measuring rod can be offset, reducing interference with the measurement.

[0014] Furthermore, the sidewall of the measuring rod is coplanar with the sidewall of the clamping part.

[0015] Since this auxiliary tool requires one side of the auxiliary clamp to contact the point to be measured during measurement, the measuring rod, which extends the measuring surface, needs to have its measuring surface coplanar with the measuring surface of the auxiliary clamp to ensure measurement accuracy. Therefore, the measuring rod, which serves as the side wall of the measuring surface, and the clamping part, which also serves as the side wall of the measuring surface, are coplanar.

[0016] Furthermore, the measuring rod is a telescopic rod.

[0017] Since the auxiliary clamp has a limited size, the length of the measuring rod set in the groove on the clamping part is also limited. In order to enhance the applicability of the auxiliary clamp, the measuring rod is made into a telescopic rod to extend the length of the measuring rod and increase the measuring range of the measuring rod.

[0018] Furthermore, the rotation axis of the measuring rod is parallel to the rotation axis of the clamping plate.

[0019] Since the measuring surface of the measuring rod is coplanar with the measuring surface of the clamping part, and the rotation axis of the measuring rod is parallel to the rotation axis of the clamping plate, the rotation direction of the measuring rod and the clamping plate is the same. This ensures that the side wall of the measuring rod, which serves as the measuring surface, and the side wall of the clamping part always remain coplanar, thereby reducing measurement errors.

[0020] Furthermore, the clamping element is 12mm long, 20mm wide, and 4mm thick.

[0021] Furthermore, the distance between the two clamping parts is 1-3 mm.

[0022] Furthermore, the included angle between the two force-bearing parts is 30°-40°.

[0023] One or more technical solutions provided by this utility model have at least the following technical effects or advantages:

[0024] (1) This utility model forms an auxiliary clamp by two mutually rotating clamping plates and a reset elastic element, which is clamped on the measuring ruler. The auxiliary clamp is moved to contact the part to be measured, and the reading on the measuring ruler is read. This allows for more accurate readings, reduces the error caused by the eye-reading method, and makes the ruler measurement method more accurate.

[0025] (2) By setting a measuring rod on one side of the auxiliary clamp, the measuring rod is brought close to the point to be measured to determine the corresponding reading on the measuring ruler, which makes the auxiliary clamp more adaptable and reduces measurement error;

[0026] (3) The measuring rod is stored in the groove, which protects the measuring rod. At the same time, since the measuring rod has a certain thickness, when it is directly installed on the outside of the clamping part, the measuring surface of the measuring rod will be offset, which is not conducive to accurate measurement. By installing it in the groove, the influence of the thickness of the measuring rod can be offset, reducing the interference to the measurement.

[0027] (4) Ensure the accuracy of measurement by making the measuring surface of the measuring rod and the measuring surface of the auxiliary clamp coplanar. Attached Figure Description

[0028] The accompanying drawings, which are provided to further illustrate the embodiments of the present invention and constitute a part of the present invention, do not constitute a limitation thereof.

[0029] Figure 1 This is a front view of the auxiliary tool structure in this utility model;

[0030] Figure 2 This is a schematic diagram of the auxiliary tool structure in this utility model;

[0031] Among them, 1-elastic element, 2-clamping part, 3-force-receiving part, 4-magnetic element, 5-measuring rod, 6-groove. Detailed Implementation

[0032] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, where there is no conflict, the embodiments of this utility model and the features within them can be combined with each other.

[0033] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0034] Example 1

[0035] This embodiment provides an auxiliary tool for bridge and tunnel measurement inspection, such as... Figure 1 and Figure 2 As shown, it includes two clamping plates that are rotatably connected to each other and an elastic element 1 mounted on the rotation shaft of the clamping plates for resetting the clamping plates. The clamping plates include a clamping part 2 and a force-receiving part 3 that has an obtuse angle with the clamping part 2. A magnetic element 4 is provided on the inner side of the clamping part 2.

[0036] The clamping part 2 and the force-receiving part 3 are both planar plates. The plane where the clamping part 2 is located intersects the plane where the force-receiving part 3 is located, and the included angle between the clamping part 2 and the force-receiving part 3 is greater than 90° and less than 180°, preferably about 162.5°. The magnetic component 4 is preferably a magnet, which is embedded in the clamping part 2. Preferably, two magnetic components 4 are provided, which are embedded in two clamping parts 2 respectively, and the embedded positions of the two magnetic components 4 are corresponding.

[0037] When using the device, first select the object to be measured, fix the initial end of the measuring ruler to the initial end of the object to be measured, then extend the measuring ruler close to the object to be measured, clamp the auxiliary tool onto the measuring ruler, so that the measuring ruler is clamped and attracted to the magnetic component 4, move the position of the auxiliary tool on the measuring ruler according to the preset measurement points on the object to be measured, so that the auxiliary tool corresponds one-to-one with the measurement points, and record the corresponding measurement readings. By using the auxiliary tool to correspond the measurement points with the readings on the measuring ruler, the readings are made more accurate.

[0038] In a more preferred embodiment, the elastic element 1 is a torsion spring, and the two ends of the torsion spring are respectively fixedly connected to the two force-receiving parts 3.

[0039] The torsion spring is sleeved on the rotating shaft of the clamping plate, and the two force-receiving ends are embedded in the force-receiving part 3 along the direction of the force-receiving part. Preferably, the force-receiving ends of the torsion spring are arranged parallel to the embedded force-receiving part 3.

[0040] In a more preferred embodiment, the clamping part 2 is 12mm long, 20mm wide, and 4mm thick. The auxiliary tool is 44mm long, the force-bearing part 3 has a horizontal length of 20mm, and the force-bearing part 3 is 4mm thick.

[0041] In a more preferred embodiment, the distance between the two clamping parts 2 is 2 mm.

[0042] In a more preferred embodiment, the included angle between the two force-bearing parts 3 is 35°.

[0043] Example 2

[0044] Based on Example 1, such as Figure 1 and Figure 2 As shown, the clamping plate also includes a measuring rod 5 disposed on one side of the clamping part 2, and the measuring rod 5 is rotatably connected to the clamping part 2.

[0045] The measuring rod 5 is located on the clamping part 2 near the edge, and is arranged along the side length of the edge of the clamping part 2. The rotation axis of the measuring rod 5 can be set close to the chuck, and the measuring rod 5 extends towards the tail of the clamp. Alternatively, the rotation axis of the measuring rod 5 can be set close to the rotation axis of the auxiliary tool, and the measuring rod 5 extends towards the chuck. More preferably, four measuring rods 5 are provided, two of which are set on the same clamping part 2 and symmetrically installed on both sides of the clamping part 2. The measuring rods 5 on the two clamping parts 2 are symmetrically arranged, so that no matter how the auxiliary tool is clamped onto the measuring ruler, there can always be a measuring rod 5 for measurement.

[0046] In a more preferred embodiment, the clamping part 2 is provided with a groove 6, and the measuring rod 5 is installed in the groove 6.

[0047] The groove 6 is formed on the edge of the clamping part 2, and its length is slightly longer than the initial length of the measuring rod 5.

[0048] In a more preferred embodiment, the sidewall of the measuring rod 5 is coplanar with the sidewall of the clamping part 2.

[0049] In a more preferred embodiment, the measuring rod 5 is a telescopic rod. Preferably, a sleeve-type telescopic rod is used, with the outermost sleeve in contact with the measuring point having the largest diameter, and its measuring surface being coplanar with the measuring surface of the clamping part 2.

[0050] In a more preferred embodiment, the rotation axis of the measuring rod 5 is parallel to the rotation axis of the clamping plate.

[0051] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0052] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An auxiliary tool for bridge and tunnel gauge measurement inspection, characterized in that, It includes two clamping plates that are rotatably connected to each other and an elastic element (1) mounted on the rotation shaft of the clamping plates for resetting the clamping plates. The clamping plates include a clamping part (2) and a force-receiving part (3) that has an obtuse angle with the clamping part (2). A magnetic element (4) is provided on the inner side of the clamping part (2).

2. The auxiliary tool for bridge and tunnel gauge measurement inspection according to claim 1, characterized in that, The elastic element (1) is a torsion spring, and the two ends of the torsion spring are respectively fixedly connected to the two force-bearing parts (3).

3. The auxiliary tool for bridge and tunnel gauge measurement inspection according to claim 1, characterized in that, The clamp also includes a measuring rod (5) disposed on one side of the clamping part (2), and the measuring rod (5) is rotatably connected to the clamping part (2).

4. The auxiliary tool for bridge and tunnel gauge measurement inspection according to claim 3, characterized in that, The clamping part (2) has a groove (6) and the measuring rod (5) is installed in the groove (6).

5. The auxiliary tool for bridge and tunnel gauge measurement inspection according to claim 3, characterized in that, The side wall of the measuring rod (5) is coplanar with the side wall of the clamping part (2).

6. The auxiliary tool for bridge and tunnel gauge measurement inspection according to claim 3, characterized in that, The measuring rod (5) is a telescopic rod.

7. The auxiliary tool for bridge and tunnel gauge measurement inspection according to claim 3, characterized in that, The rotation axis of the measuring rod (5) is parallel to the rotation axis of the clamp.

8. The auxiliary tool for bridge and tunnel gauge measurement inspection according to claim 1, characterized in that, The clamping part (2) is 12mm long, 20mm wide, and 4mm thick.

9. An auxiliary tool for bridge and tunnel gauge measurement inspection according to claim 1, characterized in that, The distance between the two clamping parts (2) is 1-3 mm.

10. An auxiliary tool for bridge and tunnel gauge measurement inspection according to claim 1, characterized in that, The included angle between the two force-bearing parts (3) is 30°-40°.

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