Counter-force base plate device of assembly type anchor rod drawing instrument

Abstract

The utility model belongs to the technical field of engineering test detection. In order to solve the problems that an existing base plate device is inconvenient to carry and has the risk of slipping, the assembled anchor rod drawing instrument counter-force base plate device comprises a splicing framework and a folding bearing unit, the splicing framework comprises two main supporting rods and a plurality of auxiliary supporting rods, the two main supporting rods are arranged in parallel, a plurality of ground gripping feet are arranged at the center of the two main supporting rods, and the folding bearing unit is arranged on the splicing framework. A space suitable for an anchoring body to penetrate through is defined by the multiple ground gripping feet, the multiple auxiliary supporting rods are evenly arranged on the two main supporting rods, the auxiliary supporting rods are detachably connected with the main supporting rods, the folding bearing unit comprises at least one set of folding steel plates, and the folding steel plates are arranged on the auxiliary supporting rods and make contact with the ground. The area of the device can be flexibly adjusted according to requirements, the device is adaptive to different counter-force grades, the device can be detached into the independent main supporting rod, the auxiliary supporting rod and the folding steel plate, carrying and transportation are convenient, and the safety of the device is improved due to the fact that the ground gripping feet are embedded into the ground.

Description

Technical Field

[0001] This utility model belongs to the field of engineering testing and inspection technology, and in particular relates to a prefabricated anchor pull-out tester reaction pad device. Background Technology

[0002] In areas such as slopes or tunnel entrances where the soil or rock is weak, anchor bolt support is often used. According to relevant industry standards or design requirements, the pull-out force of the anchor bolts needs to be tested. However, since many anchor bolt designs do not have anchor plates, the surface soil and rock are too weak to provide a reaction force for the anchor bolt pull-out tester. Since the anchor bolt pull-out tester needs to provide a large reaction force, if it is manufactured in-house, it requires thick steel plates, resulting in a large volume and heavy weight. This is inconvenient to carry on steep slopes, and there is also a safety risk of slippage if the instrument is not placed evenly. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a portable and highly safe prefabricated anchor bolt pull-out instrument reaction pad device.

[0004] This utility model provides a prefabricated anchor bolt pull-out device with a reaction pad, including a splicing frame and a folding bearing unit. The splicing frame includes two main support rods and several secondary support rods. The two main support rods are arranged in parallel, and several gripping feet are provided at the center of each main support rod. The gripping feet form a space suitable for the anchor body to pass through. The secondary support rods are evenly arranged on the two main support rods, and the secondary support rods are detachably connected to the main support rods. The folding bearing unit includes at least one set of folded steel plates, which are disposed on the secondary support rods and are in contact with the ground.

[0005] Optionally, the main support rod is detachably connected to several connectors. One side of each connector is an arc shape that can be connected to the main support rod, and the other side of each connector is an arc shape that can be connected to the secondary support rod. The secondary support rod forms a grid-like skeleton with the main support rod through the connectors.

[0006] Optionally, the folded steel plate includes a first folded steel plate and a second folded steel plate;

[0007] The first folded steel plate includes two hinged steel plates, the first steel plates having dimensions of 85mm × 55mm × 7mm;

[0008] The second folded steel plate includes two hinged steel plates, the dimensions of which are 110mm × 55mm × 7mm.

[0009] Optionally, the gripping foot is detachably connected to the main support rod, and the gripping foot is provided with anti-slip texture.

[0010] Optionally, the secondary support rod is provided with a plurality of protrusions evenly distributed along its extension direction, and the folded steel plate is provided with grooves that connect with the protrusions.

[0011] Optionally, both the main support rod and the secondary support rod are made of high-strength alloy steel or carbon fiber composite material, and the surfaces of both the main support rod and the secondary support rod are coated with an anti-rust coating.

[0012] Optionally, an anti-slip component is provided on the side of the folded steel plate away from the secondary support rod.

[0013] Optionally, the surface of the folded steel plate is uniformly distributed with reinforcing ribs.

[0014] The technical solution provided by this utility model embodiment has the following advantages compared with the prior art:

[0015] This utility model provides a prefabricated anchor pull-out tester reaction pad device. By setting a splicing frame, it can be disassembled into independent main support rods and secondary support rods, facilitating carrying and transportation. A folded steel plate is installed on the secondary support rod and contacts the ground. The splicing frame provides a standardized installation path for the folded steel plate, allowing construction personnel to quickly install the folded steel plate according to the preset splicing frame, thereby shortening on-site installation time. Furthermore, construction personnel can increase or decrease the number of secondary support rods according to test requirements to flexibly adjust the area of ​​the splicing frame. By assembling the folded steel plate on the splicing frame, the contact area with the ground can be flexibly adjusted, enabling this device to adapt to different reaction force levels and improving its versatility.

[0016] This device features a ground-gripping foot embedded in the center of the main support rod. The spliced ​​frame and the ground-gripping foot form a composite stability system of surface contact and point anchoring, making the device suitable for soft or uneven ground. This prevents the folded steel plate from slipping and improves the safety of the device. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1This is a schematic diagram of the reaction pad device of an assembled anchor bolt pull-out instrument according to an embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of the main support rod according to an embodiment of the present utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the auxiliary support rod described in an embodiment of the present utility model;

[0022] Figure 4 This is a schematic diagram of the splicing frame described in an embodiment of the present utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the gripping feet installed on the splicing frame according to an embodiment of the present utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the first folded steel plate as described in this embodiment of the present invention when unfolded;

[0025] Figure 7 This is a schematic diagram of the structure of the first folded steel plate as described in this embodiment of the invention when it rotates.

[0026] Figure 8 This is a schematic diagram of the connection between the first folded steel plate and the auxiliary support rod according to an embodiment of the present invention;

[0027] Figure 9 This is a schematic diagram of the structure of the second folded steel plate as described in this embodiment of the present invention when unfolded;

[0028] Figure 10 This is a schematic diagram of the structure of the second folded steel plate when it rotates according to an embodiment of the present invention;

[0029] Figure 11 This is a schematic diagram of the connection between the second folded steel plate and the auxiliary support rod according to an embodiment of the present invention.

[0030] Among them, 1 is the main support rod; 101 is the connecting hole; 2 is the secondary support rod; 201 is the protrusion; 3 is the gripping foot; 4 is the connector; 5 is the first folded steel plate; 501 is the first groove; 6 is the second folded steel plate; 601 is the second groove. Detailed Implementation

[0031] To better understand the above-mentioned objectives, features, and advantages of this utility model, the solution of this utility model will be further described below. It should be noted that, unless otherwise specified, the embodiments of this utility model and the features thereof can be combined with each other.

[0032] Many specific details are set forth in the following description in order to provide a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of the present invention, and not all embodiments.

[0033] Reference Figures 1 to 11 As shown, this embodiment provides a prefabricated anchor pull-out device reaction pad, including a spliced ​​frame and a folding bearing unit. The folding bearing unit is set on the spliced ​​frame and is in contact with the ground.

[0034] Reference Figure 2 and Figure 5 As shown, the splicing frame includes two main support rods 1 and several secondary support rods 2. The two main support rods 1 are arranged in parallel, and several connecting holes 101 are provided at the center of the main support rods 1. The connecting holes 101 are used to connect the gripping feet 3. The gripping feet 3 are connected to the connecting holes 101 by thread or plug-in connection. The end of the gripping feet 3 away from the main support rods 1 is tapered, and the surface of the gripping feet 3 is provided with anti-slip texture to facilitate connection with the ground and ensure the stability of the splicing frame, thereby ensuring the stability of the folding load-bearing unit and preventing the folding load-bearing unit from slipping. In this embodiment, two connecting holes 101 are provided at the center of each main support rod 1. That is to say, this device is provided with four connecting holes 101 and four gripping feet 3. The four gripping feet 3 can form a space suitable for the anchor body to pass through. The anchor body includes anchor rods, anchor cables and other anchoring components.

[0035] Reference Figure 1 , Figure 3 and Figure 4As shown, several connectors 4 are detachably connected to the main support rod 1. One side of the connector 4 is an arc shape that can connect to the main support rod 1, and the other side of the connector 4 is an arc shape that can connect to the secondary support rod 2. That is to say, the connector 4 is an arc-shaped fastener. The connector 4 is used to connect the main support rod 1 and the secondary support rod 2. Several secondary support rods 2 are evenly arranged on two main support rods 1 and form a grid-like frame. The folding bearing unit includes at least one set of folding steel plates. The folding steel plates are arranged on the secondary support rods 2 and are in contact with the ground. The grid-like frame can increase or decrease the number of secondary support rods 2 according to the test requirements, flexibly adjust the area of ​​the frame, adapt to different reaction force levels, improve the versatility of this device, and the grid-like frame is The folding steel plate provides a standardized installation path, allowing construction personnel to quickly install the folding steel plate according to the pre-set grid frame, thereby shortening on-site installation time. At the same time, the connectors 4 at the intersections of the grid frame form rigid nodes, improving the grid frame's resistance to torsion and bending, and preventing the grid frame from tilting or collapsing due to uneven stress during testing. The grid frame can be disassembled into independent main support rods 1 and secondary support rods 2, making it convenient to carry and transport. Furthermore, by setting the folding steel plate on the grid frame, and setting the center of the main support rod 1 with a ground-gripping foot 3 that can be embedded in the ground, the grid frame and the ground-gripping foot 3 form a composite stability system of surface contact and point anchoring, making this device suitable for soft or uneven sites.

[0036] Both the main support rod 1 and the secondary support rod 2 are made of high-strength alloy steel or carbon fiber composite material, and the surfaces of both the main support rod 1 and the secondary support rod 2 are coated with an anti-rust coating.

[0037] Reference Figure 6 , Figure 7 and Figure 8 As shown, the folding steel plate includes a first folding steel plate 5, which includes two hinged first steel plates. The dimensions of the first steel plate are 85mm×55mm×7mm. The auxiliary support rod 2 is provided with a number of protrusions 201 evenly along its extension direction. The first folding steel plate 5 is provided with a first groove 501 connected to the protrusions 201.

[0038] Reference Figure 9 , Figure 10 and Figure 11 The folding steel plate also includes a second folding steel plate 6, which includes two hinged second steel plates. The dimensions of the second steel plate are 110mm×55mm×7mm. The second folding steel plate 6 is provided with a second groove 601 that is connected to the protrusion 201.

[0039] The first folded steel plate 5 and the second folded steel plate 6 are of different sizes. By combining and assembling them, the total area of ​​the reaction bearing surface can be adjusted. In low reaction force tests, the smaller first folded steel plate 5 is used first to reduce material consumption. In high reaction force tests, the first folded steel plate 5 and the second folded steel plate 6 are used for assembly. The second folded steel plate 6 is installed in the main stress area, that is, the central area of ​​the splicing frame, to distribute the concentrated load. The first folded steel plate 5 is installed at local weak points to avoid deformation or breakage caused by stress concentration. The flexible combination of the two different sizes of folded steel plates improves the applicability and practicality of this device, which not only meets the testing requirements of complex sites, but also reduces costs and improves work efficiency.

[0040] To prevent the folded steel plate from slipping, an anti-slip component is installed on the side of the folded steel plate away from the secondary support rod 2. This anti-slip component can be replaced depending on the site. On typical outdoor sites, the anti-slip component can be a silicone strip, which has higher heat resistance and anti-aging properties. On hard surfaces, the anti-slip component can be a serrated structure, meaning a serrated structure is machined on the side of the folded steel plate facing the ground, increasing friction and creating a stable connection. On metal surfaces, the anti-slip component can be a magnetic sheet, placed on the side of the folded steel plate facing the metal base. The magnetic sheet adheres to the metal base, ensuring the folded steel plate is in contact with it and preventing slippage. Of course, the anti-slip component can be selected according to different site conditions to achieve a connection structure that ensures the folded steel plate adheres to the surface and prevents slippage.

[0041] To enhance the strength of folded steel plates, reinforcing ribs can be evenly distributed on the surface of the folded steel plates. When the folded steel plates are under pressure, the reinforcing ribs can constrain the free deformation area of ​​the folded steel plates, avoid local instability, and disperse concentrated stress, thus preventing fracture caused by stress concentration.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used merely 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.

[0043] The above description is merely a specific embodiment of this utility model, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this utility model. Therefore, this utility model is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features of the utility model herein.

Claims

1. A fabricated anchor rod pullout apparatus reaction pad device, characterized by, The system includes a splicing frame and a folding load-bearing unit. The splicing frame includes two main support rods (1) and several secondary support rods (2). The two main support rods (1) are arranged in parallel, and several gripping feet (3) are provided at the center of each main support rod (1). The gripping feet (3) form a space suitable for the anchor body to pass through. Several secondary support rods (2) are evenly arranged on the two main support rods (1), and the secondary support rods (2) are detachably connected to the main support rods (1). The folding load-bearing unit includes at least one set of folding steel plates. The folding steel plates are arranged on the secondary support rods (2) and are in contact with the ground.

2. The assembled anchor rod pullout apparatus reaction pad device of claim 1, wherein, Several connectors (4) are detachably connected to the main support rod (1). One side of the connector (4) is an arc shape that can be connected to the main support rod (1), and the other side of the connector (4) is an arc shape that can be connected to the secondary support rod (2). The secondary support rod (2) forms a grid-like skeleton with the main support rod (1) through the connectors (4).

3. The reaction pad assembly of claim 1, wherein the reaction pad assembly is configured to be used with a field assembled pullout apparatus. The folded steel plate includes a first folded steel plate (5) and a second folded steel plate (6); The first folded steel plate (5) comprises two hinged first steel plates, the first steel plate having dimensions of 85mm×55mm×7mm; The second folded steel plate (6) includes two hinged second steel plates, the second steel plates having dimensions of 110mm×55mm×7mm.

4. The assembled anchor rod pullout apparatus reaction pad device of claim 1, wherein, The gripping foot (3) is detachably connected to the main support rod (1), and the gripping foot (3) is provided with anti-slip texture.

5. The assembled anchor rod pullout apparatus reaction pad device of claim 1, wherein, The secondary support rod (2) is provided with a number of protrusions (201) evenly distributed along its extension direction, and the folded steel plate is provided with a groove connected to the protrusions (201).

6. The assembled anchor rod pullout apparatus reaction pad device of claim 1, wherein, Both the main support rod (1) and the secondary support rod (2) are made of high-strength alloy steel or carbon fiber composite material, and the surfaces of both the main support rod (1) and the secondary support rod (2) are coated with an anti-rust coating.

7. The assembled anchor rod pullout apparatus reaction pad device of claim 1, wherein, The folded steel plate is provided with an anti-slip component on the side away from the secondary support rod (2).

8. The assembled anchor rod pullout apparatus reaction pad device of claim 1, wherein, The surface of the folded steel plate is uniformly covered with reinforcing ribs.

Images