A hollow anchor rod gauge
Patent Information
- Application Number
- CN202522656832.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-15
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-12-15
AI Technical Summary
[0002]中空锚杆是一种在岩土工程和隧道工程中广泛使用的锚固支护材料，其主要组成包括中空杆体、锚垫板、螺母、止浆塞、锚头等，锚垫板用于封堵钻孔和连接岩面，通过封堵钻孔以实现压力注浆，通过连接岩面以将锚固力传递到岩面上；在隧道施工中，需要使用到大量的中空锚杆，在中空锚杆被运送至施工现场后，需要检测其外形尺寸是否符合规定以对其进行验收，在对中空锚杆的外形进行检测时，需要检测中空杆体的外径、内径和外螺纹，以及锚垫板的边长和板厚；检测内容较多，若仅使用工具尺，检测人员需要频繁对准刻度，不仅效率难以提升，而且检测人员容易眼花，导致出现明显失误
本实用新型所述中空锚杆量具，设有与锚垫板的边长和板厚相适配的垫板测量槽，可根据锚垫板能否嵌入垫板测量槽，以及嵌入后间隙的大小来快速判断锚垫板的板厚是否符合要求；中空锚杆量具上还设有测量杆、测量筒和螺纹检测槽，可分别用于检测中空杆体的内径、外径和外螺纹，使检测人员只需携带一个中空锚杆量具，便能随时随地对中空锚杆进行检测，不需要多次切换工具，检测更加方便。而且，本实用新型根据中空锚杆量具上的各检测部与中空锚杆上的待检测部能否嵌合以及嵌合后的间隙来判断中空锚杆的外形尺寸是否符合要求，相较于使用工具尺测量，本中空锚杆量具不需要对准刻度，操作步骤更加简化，利于提高检测效率，且检测过程对检测人员的精力消耗更少，利于降低检测人员的疲劳感。
Smart Images
Figure CN224838743U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of testing equipment technology, and in particular to a hollow anchor rod measuring tool. Background Technology
[0002] Hollow anchor bolts are a widely used anchoring support material in geotechnical engineering and tunnel engineering. Their main components include a hollow rod body, anchor plate, nut, grout stopper, and anchor head. The anchor plate is used to seal boreholes and connect to the rock surface. Sealing the boreholes enables pressure grouting, and connecting to the rock surface transfers the anchoring force to the rock surface. In tunnel construction, a large number of hollow anchor bolts are required. After the hollow anchor bolts are transported to the construction site, their dimensions need to be checked to ensure they meet the requirements for acceptance. This inspection includes checking the outer diameter, inner diameter, and external threads of the hollow rod body, as well as the side length and thickness of the anchor plate. Given the numerous inspection items, using only a ruler requires frequent adjustments to the scale, which not only hinders efficiency but also increases the risk of eye strain and errors. Utility Model Content
[0003] This utility model provides a hollow anchor bolt measuring tool, which aims to quickly measure various dimensions of hollow anchor bolts to save acceptance time.
[0004] This utility model provides a hollow anchor bolt measuring tool, comprising a rectangular measuring tool body, at least one side of which is provided with a pad measuring groove for detecting the thickness and side length of the anchor plate, the groove length and groove width of which correspond to the side length and thickness of the anchor plate to be tested, respectively; at least one side of which is provided with a measuring rod for detecting the inner diameter of the hollow rod; at least one side of which is provided with a measuring cylinder for detecting the outer diameter of the hollow rod; and at least one side of which is provided with a thread detection groove for detecting the external thread of the hollow rod.
[0005] In some embodiments, the measuring instrument body is provided with at least two measuring grooves of different widths on the pad.
[0006] In some embodiments, the thread detection groove and the pad measuring groove are located on opposite sides of the gauge body.
[0007] In some embodiments, the outer diameter of the measuring rod corresponds to the inner diameter of the hollow rod body.
[0008] In some embodiments, the inner diameter of the measuring cylinder corresponds to the outer diameter of the hollow rod.
[0009] In some embodiments, the thread detection groove has a wavy groove wall that matches the external thread of the hollow rod.
[0010] In some embodiments, the measuring rod and the measuring cylinder are located on opposite sides of the measuring instrument body.
[0011] In some embodiments, the measuring rod and the measuring cylinder are located on the same side of the measuring instrument body, and the measuring rod is at least partially located inside the cavity of the measuring cylinder, and the measuring rod and the measuring cylinder are concentric.
[0012] In some embodiments, the measuring rod protrudes from the opening of the measuring cylinder.
[0013] In some embodiments, the gauge body is formed from plastic or metal.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: The hollow anchor bolt measuring tool of this invention is equipped with a measuring groove for the anchor plate that matches the side length and thickness of the anchor plate. It allows for quick determination of whether the anchor plate thickness meets requirements based on whether the anchor plate can be inserted into the measuring groove and the size of the gap after insertion. The hollow anchor bolt measuring tool also includes a measuring rod, a measuring cylinder, and a thread detection groove, which can be used to detect the inner diameter, outer diameter, and external thread of the hollow bolt body, respectively. This allows inspectors to carry only one hollow anchor bolt measuring tool to inspect hollow anchor bolts anytime, anywhere, without needing to switch tools multiple times, making inspection more convenient. Furthermore, this invention determines whether the external dimensions of the hollow anchor bolt meet requirements based on whether the various detection parts on the hollow anchor bolt measuring tool can fit into the parts to be inspected on the hollow anchor bolt and the gap after fitting. Compared to using a ruler, this hollow anchor bolt measuring tool does not require alignment with the scale, simplifying the operation steps, improving inspection efficiency, and reducing the energy consumption of the inspector, thus reducing fatigue. Attached Figure Description
[0015] Figure 1 This is a side view schematic diagram of the first structure of the hollow anchor rod measuring tool according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of the first structure of the hollow anchor rod measuring tool described in this embodiment of the utility model. Figure 1 ; Figure 3 This is a schematic diagram of the first structure of the hollow anchor rod measuring tool described in this embodiment of the utility model. Figure 2 ; Figure 4 This is a schematic diagram of the first structure of the hollow anchor rod measuring tool described in this embodiment of the utility model. Figure 3 ; Figure 5 This is a side view schematic diagram of the second structure of the hollow anchor rod measuring tool described in this embodiment of the present invention; Figure 6This is a schematic diagram of the second structure of the hollow anchor rod measuring tool described in this embodiment of the present invention.
[0016] Marked in the image: 100-Measuring instrument body; 1-Plate measuring groove; 2-Measuring rod; 3-Measuring cylinder; 4-Thread inspection groove. Detailed Implementation
[0017] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.
[0018] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.
[0019] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.
[0020] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.
[0021] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.
[0022] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.
[0023] Hollow anchor bolts are a widely used anchoring support material in geotechnical engineering and tunnel engineering. Their main components include a hollow rod body, anchor plate, nut, grout stopper, and anchor head. The outer wall of the hollow rod body has external threads. After the hollow anchor bolts are transported to the construction site, their shape needs to be inspected to determine if they meet the requirements. This inspection involves checking the outer diameter, inner diameter, and external threads of the rod body, as well as the side length and thickness of the anchor plate. If a ruler is used to check these parameters, the inspector needs to frequently align the scale, which is inefficient and can easily cause eye strain and fatigue, leading to significant errors.
[0024] The present invention will now be described in conjunction with the accompanying drawings and specific embodiments: Combination Figures 1 to 6 This utility model provides a hollow anchor rod measuring tool, including a measuring tool body 100, on which a pad measuring groove 1 is provided. The pad measuring groove 1 is used to detect the thickness and side length of the anchor plate of the hollow anchor rod.
[0025] Furthermore, the width of the measuring groove 1 corresponds to the thickness of the anchor plate, and the length of the measuring groove 1 corresponds to the side length of the anchor plate. The measuring groove 1 can be a straight groove formed on the measuring instrument body 100. The groove width refers to the distance between the left and right side walls, the groove length refers to the length along the extension direction of the measuring groove 1, and the groove depth refers to the length from the opening of the measuring groove 1 to the bottom of the groove. The groove width of the measuring groove 1 can be designed to be similar to and slightly larger than the thickness of the anchor plate, so that the anchor plate can be laterally embedded into the measuring groove 1. After embedding, there should be no or only a small gap between the side wall of the measuring groove 1 and the surface of the anchor plate. The inspector can quickly determine whether the thickness of the anchor plate meets the requirements based on whether the anchor plate can be embedded into the measuring groove 1 and the size of the gap after embedding. If the anchor plate can be embedded into the measuring groove 1 and the gap after embedding is small or non-existent, the thickness of the anchor plate meets the requirements. If the anchor plate cannot be embedded into the measuring groove 1, the thickness of the anchor plate is too large. If the anchor plate can be embedded into the measuring groove 1 but there is a large gap after embedding, the thickness of the anchor plate is too small. The length of the measuring groove 1 of the pad can be designed to be similar to the side length of the anchor plate. After the anchor plate is embedded into the measuring groove 1, the inspector can push the anchor plate along the length of the measuring groove 1 so that one end of the anchor plate is located at one end of the measuring groove 1. By observing whether the other end of the anchor plate is located at the other end of the measuring groove 1, the inspector can quickly determine whether the side length of the anchor plate meets the requirements. If the other end of the anchor plate is flush with the other end of the measuring groove 1, the side length of the anchor plate meets the requirements. If the other end of the anchor plate extends from the other end of the measuring groove 1, the side length of the anchor plate is too large. If the other end of the anchor plate is shorter than the other end of the measuring groove 1, the side length of the anchor plate is too small.
[0026] In an optional embodiment, the dimension of the measuring instrument body 100 in the direction parallel to the length of the pad measuring groove 1 can be equal to the length of the pad measuring groove 1, so that both ends of the pad measuring groove 1 are open, which facilitates the anchor plate to be inserted into the pad measuring groove 1 from the end, and also allows the inspector to quickly determine whether the end of the anchor plate corresponds to the end of the pad measuring groove 1 by touch. Exemplarily, the measuring instrument body 100 is a square block, the pad measuring groove 1 is disposed on one side of the measuring instrument body 100, the extension direction of the pad measuring groove 1 is parallel to one side of the measuring instrument body 100, and the two ends of the pad measuring groove 1 are respectively connected to two opposite sides of the measuring instrument body 100.
[0027] In an optional embodiment, to broaden the scope of application and meet the testing needs of anchor plates with various thicknesses, the measuring tool body 100 is provided with at least two measuring grooves 1 with different groove widths. Each measuring groove 1 corresponds to an anchor plate of a specific specification, allowing testing personnel to use the same hollow anchor rod measuring tool to test anchor plates of different specifications without frequent tool changes, thus improving testing efficiency. Furthermore, the groove length of each measuring groove 1 is equal to the side length of the corresponding anchor plate specification. (Exemplary, combined with...) Figure 1 and Figure 5 The measuring instrument body 100 is provided with four parallel and side-by-side measuring grooves 1, with groove widths of 6mm, 8mm, 10mm and 12mm respectively.
[0028] In some embodiments, for inspecting the rod body of a hollow anchor bolt, the measuring instrument body 100 is further provided with a measuring rod 2 and a measuring cylinder 3. The measuring rod 2 is used to detect the inner diameter of the hollow rod body, and its outer diameter corresponds to the inner diameter of the hollow rod body. The measuring cylinder 3 is used to detect the outer diameter of the hollow rod body, and its inner diameter corresponds to the outer diameter of the hollow rod body. The outer diameter of the measuring rod 2 can be set to be similar to but slightly smaller than the inner diameter of the hollow rod body, allowing the measuring rod 2 to be inserted into the hole of the hollow rod body from its end. After insertion, the outer wall of the measuring rod 2 and the inner wall of the hollow rod body... If there is no or only a tiny gap between the walls, the inspector can quickly determine whether the inner diameter of the hollow rod meets the requirements by observing whether the measuring rod 2 can be inserted into the hole of the hollow rod and the size of the gap after insertion. If the measuring rod 2 can be inserted into the hole of the hollow rod and the gap after insertion is small or non-existent, the inner diameter of the hollow rod meets the requirements. If the measuring rod 2 cannot be inserted into the hole of the hollow rod, the inner diameter of the hollow rod is too small. If the measuring rod 2 can be inserted into the hole of the hollow rod but there is a large gap after insertion, the inner diameter of the hollow rod is too large. The inner diameter of the measuring cylinder 3 can be set to be similar to, but slightly larger than, the outer diameter of the hollow rod, allowing the hollow rod to be inserted into the cavity of the measuring cylinder 3. After insertion, there should be no or only a tiny gap between the outer wall of the hollow rod and the inner wall of the measuring cylinder 3. The inspector can quickly determine whether the outer diameter of the hollow rod meets the requirements based on whether it can be inserted into the cavity of the measuring cylinder 3 and the size of the gap after insertion. If the hollow rod can be inserted into the cavity of the measuring cylinder 3 with a small or non-existent gap, the outer diameter of the hollow rod meets the requirements. If the hollow rod cannot be inserted into the cavity of the measuring cylinder 3, the outer diameter of the hollow rod is too large. If the hollow rod can be inserted into the cavity of the measuring cylinder 3 but a large gap exists after insertion, the outer diameter of the hollow rod is too small. For example, the outer diameter of the measuring rod 2 is 12.5 mm, and the inner diameter of the measuring cylinder 3 is 50 mm.
[0029] In an optional implementation, combined with Figures 1 to 4Both the measuring rod 2 and the measuring cylinder 3 protrude from the surface of the measuring instrument body 100, and are located on opposite sides of the measuring instrument body 100. After the inspector uses the measuring rod 2 to measure the inner diameter of the hollow rod, the measuring cylinder 3 can be aligned with the end of the hollow rod by flipping the hollow anchor rod measuring instrument, thereby measuring the outer diameter of the hollow rod. The measuring rod 2 and the measuring cylinder 3 are respectively set on both sides of the measuring instrument body 100, which facilitates the separate manufacturing of the measuring rod 2 and the measuring cylinder 3, simplifying the manufacturing difficulty of the hollow anchor rod measuring instrument. Moreover, the measuring rod 2 and the measuring cylinder 3 can be used independently to measure the inner or outer diameter of the hollow rod as needed. The inner diameter of the hollow rod can be measured by the measuring rod 2 when the outer diameter of the hollow rod is larger than the inner diameter of the measuring cylinder 3, and the outer diameter of the hollow rod can be measured by the measuring cylinder 3 when the inner diameter of the hollow rod is smaller than the outer diameter of the measuring rod 2, thus expanding the applicability of the hollow anchor rod measuring instrument described in this embodiment.
[0030] In an optional implementation, combined with Figure 5 and Figure 6 Both the measuring rod 2 and the measuring cylinder 3 protrude from the same side of the measuring instrument body 100, and the measuring rod 2 is at least partially located inside the cavity of the measuring cylinder 3, with the measuring rod 2 and the measuring cylinder 3 being concentric. This arrangement allows for the simultaneous detection of the outer and inner diameters of the hollow anchor rod, eliminating the need for flipping the hollow anchor rod measuring instrument and realigning it, thus improving detection efficiency. Furthermore, combined with... Figure 5 The measuring rod 2 protrudes from the opening of the measuring cylinder 3. In use, the measuring rod 2 can be aligned and inserted into the hole of the hollow rod body first. Then, the hollow rod body is moved along the measuring rod 2 to insert it into the cavity of the measuring cylinder 3. The measuring rod 2 can play a guiding role to reduce the difficulty of alignment. At the same time, when the measuring rod 2 is inserted into the hole of the hollow rod body but the hollow rod body has not yet been inserted into the cavity of the measuring cylinder 3, the inspector can observe the size of the gap between the outer wall of the measuring rod 2 and the inner wall of the hollow rod body from the side to determine whether the inner diameter of the hollow rod body is too small.
[0031] In some embodiments, combined with Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 The measuring instrument body 100 is also provided with a thread detection groove 4, which is used to detect the external thread of the hollow rod. The thread detection groove 4 has a wavy groove wall that matches the external thread of the hollow rod. The thread detection groove 4 has multiple alternating peaks and troughs. During detection, the peaks can be aligned with the root of the external thread of the hollow rod, and the troughs can be aligned with the crest of the external thread of the hollow rod. The external thread can be judged to meet the requirements by observing the gap between the external thread of the hollow rod and the thread detection groove 4. If the fit is good, the gap is small or there is no gap, then the external thread of the hollow rod meets the requirements; if the fit is poor and the gap is large, then the external thread of the hollow rod does not meet the requirements.
[0032] In an optional embodiment, the thread detection groove 4 and the pad measuring groove 1 are located on opposite sides of the measuring instrument body 100.
[0033] In some embodiments, the measuring instrument body 100 is a rectangular block, formed by processing plastic or metal; wherein, the plastic can be a rigid plastic, such as PVC (polyvinyl chloride), PMMA (polymethyl methacrylate), etc., and the metal can be iron, steel, etc.; when the measuring instrument body 100 is formed by processing plastic, the measuring rod 2, measuring cylinder 3, pad measuring groove 1 and thread detection groove 4 can be integrally cut to form. When the measuring instrument body 100 is formed by processing metal, the measuring rod 2 and measuring cylinder 3 can be manufactured first, and then the measuring rod 2 and measuring cylinder 3 can be welded to the measuring instrument body 100, and the pad measuring groove 1 and thread detection groove 4 can be chiseled on the measuring instrument body 100.
[0034] In an optional embodiment, the measuring instrument body 100 includes six surfaces, two of which are respectively provided with a pad measuring groove 1 and a thread detection groove 4, two of the other four surfaces are respectively provided with a measuring rod 2 and a measuring cylinder 3, and the remaining two surfaces are used for the person being tested to grip.
[0035] The hollow anchor bolt measuring tool described in this embodiment is equipped with multiple detection sections, enabling convenient and quick detection of the external dimensions of different parts of the hollow anchor bolt. Inspectors only need to carry one tool to inspect the hollow anchor bolt anytime, anywhere, making inspection more convenient. Furthermore, this embodiment determines whether the external dimensions of the hollow anchor bolt meet requirements based on whether the detection sections on the tool can fit into the parts to be inspected on the hollow anchor bolt, and the resulting gap. Compared to using a ruler, this tool does not require alignment with the scale, simplifying the operation and improving inspection efficiency. The inspection process also requires less effort from the inspectors, reducing fatigue.
[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A hollow anchor bolt measuring tool, characterized in that, The measuring instrument includes a rectangular measuring body (100), at least one side of which is provided with a pad measuring groove (1), the pad measuring groove (1) is used to detect the thickness and side length of the anchor plate, and the groove length and groove width of the pad measuring groove (1) correspond to the side length and thickness of the anchor plate to be tested, respectively; at least one side of the measuring body (100) is provided with a measuring rod (2), the measuring rod (2) is used to detect the inner diameter of the hollow rod; at least one side of the measuring body (100) is provided with a measuring cylinder (3), the measuring cylinder (3) is used to detect the outer diameter of the hollow rod; at least one side of the measuring body (100) is provided with a thread detection groove (4), the thread detection groove (4) is used to detect the external thread of the hollow rod.
2. The hollow anchor bolt measuring tool according to claim 1, characterized in that, The measuring instrument body (100) is provided with at least two measuring grooves (1) of different widths.
3. The hollow anchor bolt measuring tool according to claim 1, characterized in that, The thread detection groove (4) and the pad measuring groove (1) are located on opposite sides of the measuring instrument body (100).
4. The hollow anchor bolt measuring tool according to claim 1, characterized in that, The outer diameter of the measuring rod (2) corresponds to the inner diameter of the hollow rod body.
5. The hollow anchor bolt measuring tool according to claim 1, characterized in that, The inner diameter of the measuring cylinder (3) corresponds to the outer diameter of the hollow rod.
6. The hollow anchor bolt measuring tool according to claim 1, characterized in that, The thread detection groove (4) has a wavy groove wall that matches the external thread of the hollow rod.
7. The hollow anchor bolt measuring tool according to claim 1, characterized in that, The measuring rod (2) and the measuring cylinder (3) are located on opposite sides of the measuring instrument body (100).
8. The hollow anchor bolt measuring tool according to claim 1, characterized in that, The measuring rod (2) and the measuring cylinder (3) are located on the same side of the measuring instrument body (100), and the measuring rod (2) is at least partially located inside the cavity of the measuring cylinder (3), and the measuring rod (2) and the measuring cylinder (3) are concentric.
9. The hollow anchor bolt measuring tool according to claim 8, characterized in that, The measuring rod (2) protrudes from the opening of the measuring cylinder (3).
10. The hollow anchor bolt measuring tool according to any one of claims 1-9, characterized in that, The measuring instrument body (100) is formed from plastic or metal.