A tunnel or slope detection post-type anchor rod pull-out force detection displacement measuring device

Abstract

The application belongs to the technical field of measurement, and provides a displacement measuring device for post-positioned anchor rod pulling force detection in tunnel or slope detection, which comprises a jack, a laser range finder, a centering rod and a baffle, the jack is connected with the anchor rod, the jack is used for applying an axial force to the anchor rod, the laser range finder is installed on the anchor rod, and the laser light of the laser range finder is parallel to the axis of the anchor rod, the centering rod is arranged correspondingly to the anchor rod, the baffle is installed on the centering rod, and the laser light of the laser range finder is shot on the baffle. The application has simple and compact structure, and the detection is more accurate and less likely to be misjudged.

Description

Technical Field

[0001] This application belongs to the field of measurement technology, and specifically relates to a displacement measuring device for detecting the pull-out force of anchor bolts in tunnels or slopes. Background Technology

[0002] Anchor bolt pull-out force testing is a crucial indicator for assessing the construction quality of anchor bolts in tunnels, foundation pits, and slopes. The testing process requires measuring the deformation at the anchor bolt end during jacking. Traditionally, this involves erecting a fixed, simple scaffold near the anchor bolt end and installing a dial indicator on it, with the indicator resting against the anchor bolt end via its base. However, the dial indicator's range and installation quality directly impact the test results, potentially leading to misjudgments of the anchor bolt construction quality. Utility Model Content

[0003] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of this application is to provide a displacement measuring device for detecting the pull-out force of anchor bolts in tunnels or slopes, which has a simple and compact structure, more accurate detection, and is less prone to misjudgment.

[0004] The technical means adopted in this application to solve the above-mentioned technical problems are:

[0005] This application provides a displacement measuring device for detecting the pull-out force of anchor bolts in tunnels or slopes, which is used for detecting the pull-out force of anchor bolts, including:

[0006] A jack, which is connected to an anchor bolt, is used to apply an axial force to the anchor bolt.

[0007] A laser rangefinder is installed on the anchor bolt, and the laser beam of the laser rangefinder is parallel to the axis of the anchor bolt.

[0008] The centering rod is provided in correspondence with the anchor rod;

[0009] A baffle is mounted on the centering rod, and the laser beam from the laser rangefinder is directed onto the baffle.

[0010] Preferably, it also includes a fixed bracket, which is installed on the anchor bolt, and the laser rangefinder is installed on the fixed bracket.

[0011] Preferably, the fixing bracket includes a buckle and a base, the buckle is snapped onto the anchor rod, the base is installed on the buckle, and the laser rangefinder is installed on the base.

[0012] Preferably, the centering rod is provided with a level bubble.

[0013] Preferably, the baffle is installed on the telescopic rod of the centering rod.

[0014] Preferably, the top of the telescopic rod is provided with an insertion hole, and the bottom of the baffle is provided with an insertion rod, which is inserted into the insertion hole.

[0015] Compared with existing technologies, the tunnel or slope detection post-mounted anchor pull-out force detection displacement measuring device of this application is equipped with a laser rangefinder. The laser rangefinder is installed on the anchor bolt, and a centering rod is set at the corresponding position of the anchor bolt. A baffle is installed on the centering rod so that the baffle is located on the laser line of the laser rangefinder. In this way, during the detection, the jack pulls the anchor bolt, and the laser rangefinder can detect the distance between the laser line and the baffle to determine whether the anchor bolt has been displaced. It is simple, fast, accurate, and less prone to misjudgment. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a post-mounted anchor pull-out force detection displacement measuring device for tunnel or slope detection according to this application.

[0018] Marker explanation:

[0019] 1. Jack; 2. Laser rangefinder; 3. Centering rod; 4. Baffle; 5. Anchor bolt; 6. Fixed bracket; 7. Level bubble. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, it will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. Many specific details are set forth in the following description to provide a thorough understanding of this utility model; the described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0021] It should be noted that, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. Similar reference numerals and letters denote similar items in the following figures; therefore, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] like Figure 1 As shown, this embodiment provides a rear-mounted anchor bolt 5 pull-out force detection displacement measuring device, which is used for detecting the pull-out force of the anchor bolt 5. It includes a jack 1, a laser rangefinder 2, a centering rod 3, and a baffle 4. The jack 1 is connected to the anchor bolt 5 and is used to apply an axial force to the anchor bolt 5. The laser rangefinder 2 is installed on the anchor bolt 5, and the laser beam of the laser rangefinder 2 is parallel to the axis of the anchor bolt 5. The centering rod 3 is correspondingly arranged with the anchor bolt 5. The baffle 4 is installed on the centering rod 3, and the laser beam of the laser rangefinder 2 is incident on the baffle 4.

[0023] In some preferred embodiments of this invention, a fixing bracket 6 is further included, which is installed on the anchor rod 5, and the laser rangefinder 2 is installed on the fixing bracket 6. Thus, the fixing bracket 6 can improve the installation stability of the laser rangefinder 2.

[0024] In some preferred embodiments of this utility model, the fixing bracket 6 includes a buckle and a base. The buckle is snapped onto the anchor rod 5, the base is installed on the buckle, and the laser rangefinder 2 is installed on the base. This buckle design facilitates the quick installation and removal of the fixing bracket 6.

[0025] In some preferred embodiments of this invention, a level bubble 7 is provided on the centering rod 3. Thus, the level bubble 7 facilitates the adjustment of the level of the centering rod 3.

[0026] In some preferred embodiments of this invention, the baffle 4 is mounted on the telescopic rod of the centering rod 3. This allows for convenient adjustment of the height of the baffle 4.

[0027] It should be noted that the centering rod 3 is a structure of the prior art, and its structure is not the technical problem to be solved in this application. This application realizes the detection of the pull-out force displacement of the anchor rod 5 through the cooperation of the centering rod 3, the laser rangefinder 2 and the baffle 4. Therefore, the structure of the centering rod 3 will not be described in detail here.

[0028] In some preferred embodiments of this utility model, the top of the telescopic rod is provided with an insertion hole, and the bottom of the baffle 4 is provided with an insertion rod, which is inserted into the insertion hole. This facilitates the disassembly and installation of the baffle 4.

[0029] Compared with the prior art, the rear-mounted anchor bolt 5 pull-out force detection displacement measuring device of this application is equipped with a laser rangefinder 2, which is installed on the anchor bolt 5. By setting a centering rod 3 at the corresponding position of the anchor bolt 5, and installing a baffle 4 on the centering rod 3, the baffle 4 is positioned on the laser line of the laser rangefinder 2. Thus, during the detection, when the jack 1 pulls the anchor bolt 5, the laser rangefinder 2 can detect the distance between the laser line and the baffle 4 to determine whether the anchor bolt 5 has been displaced. This method is simple, fast, accurate, and less prone to misjudgment.

[0030] The above description is merely a specific embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should also be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A displacement measuring device for detecting the pull-out force of anchor bolts in tunnels or slopes, used for detecting the pull-out force of anchor bolts, characterized in that... include: A jack, which is connected to an anchor bolt, is used to apply an axial force to the anchor bolt. A laser rangefinder is installed on the anchor bolt, and the laser beam of the laser rangefinder is parallel to the axis of the anchor bolt. The centering rod is provided in correspondence with the anchor rod; A baffle is mounted on the centering rod, and the laser beam from the laser rangefinder is directed onto the baffle.

2. The displacement measuring device for detecting the pull-out force of anchor bolts in tunnels or slopes according to claim 1, characterized in that, It also includes a fixed bracket, which is installed on the anchor bolt, and the laser rangefinder is installed on the fixed bracket.

3. The displacement measuring device for detecting the pull-out force of anchor bolts in tunnels or slopes according to claim 2, characterized in that, The fixed bracket includes a buckle and a base. The buckle is snapped onto the anchor rod, the base is installed on the buckle, and the laser rangefinder is installed on the base.

4. The displacement measuring device for detecting the pull-out force of anchor bolts in tunnels or slopes according to claim 1, characterized in that, A level bubble is provided on the centering rod.

5. The displacement measuring device for detecting the pull-out force of anchor bolts in tunnels or slopes according to claim 4, characterized in that, The baffle is installed on the telescopic rod of the centering rod.

6. The displacement measuring device for detecting the pull-out force of anchor bolts in tunnels or slopes according to claim 5, characterized in that, The top of the telescopic rod is provided with an insertion hole, and the bottom of the baffle is provided with an insertion rod, which is inserted into the insertion hole.

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