Post-anchoring anti-seismic detection device for building reconstruction engineering

Abstract

The utility model relates to the technical field of building construction, and discloses a post-anchoring anti-seismic detection device for building reconstruction engineering, which comprises an oil cylinder, a supporting ring is arranged at the upper end of the oil cylinder, a positioning assembly is arranged on the supporting ring, and the positioning assembly comprises a plurality of clamping pieces slidably arranged on the inner side of the supporting ring. The outer side of the supporting ring is sleeved with an extrusion ring, the extrusion ring can move in the axial direction of the supporting ring, and guide sliding grooves matched with the clamping pieces are formed in the extrusion ring. The clamping pieces are attracted through the magnetic force of the magnetic ring, so that the clamping pieces are attached to the inner sides of the guide sliding grooves and the inner sides of the reducing grooves, the extrusion ring is screwed, the extrusion ring moves in the axial direction of the supporting ring, the clamping pieces are pushed to move along the reducing grooves and the guide sliding grooves, the magnetic ring gets close to the axis, and anchoring rods with different diameters can be clamped and fixed in the radial direction; different clamping pieces and anchorage devices do not need to be carried, and the device has the advantages of being wide in application range and convenient to use.

Description

Technical Field

[0001] This application relates to the field of building construction technology, and in particular to a post-anchoring seismic detection device for building renovation projects. Background Technology

[0002] In building renovation projects, post-anchoring technology is widely used in structural reinforcement and component connection. However, the seismic performance of post-anchored structures directly affects the safety of buildings during natural disasters such as earthquakes. Therefore, accurate and reliable seismic testing of post-anchored structures is crucial. Seismic testing of post-anchored structures typically employs methods such as anchor pull-out tests, quasi-static tests, and shaking table tests.

[0003] Anchor bolt pull-out instruments typically use clamps or anchors of fixed sizes to hold anchor bolts, which has significant limitations. When dealing with anchor bolts of different diameters, multiple sizes of clamps and anchors need to be carried, which not only increases the workload of testing personnel and equipment costs, but also easily introduces installation errors during on-site replacement of clamps and anchors, affecting the accuracy of the test results. Utility Model Content

[0004] To address the issues of increased burden and cost, and the potential for errors that can affect test results, caused by using fixed-size clamps or anchors to hold anchor rods in anchor pull-out instruments, this application provides a post-anchoring seismic testing device for building renovation projects.

[0005] The technical solution of the post-anchoring seismic testing device for building renovation projects provided in this application is as follows:

[0006] A post-anchoring seismic testing device for building renovation projects includes a hydraulic cylinder. A support ring is provided at the upper end of the hydraulic cylinder. A positioning component is provided on the support ring. The positioning component includes several clamping pieces that are slidably disposed inside the support ring. A compression ring is sleeved on the outer side of the support ring and can move along the axial direction of the support ring. A guide groove that matches the clamping pieces is provided on the compression ring.

[0007] Preferably, the hydraulic cylinder includes a piston cylinder, a piston plate is slidably disposed on the inner side of the piston cylinder, and a piston rod is disposed on the piston plate.

[0008] Preferably, both the piston cylinder and the piston rod are hollow, and an oil pipe joint is provided on the side wall of the piston cylinder, which is connected to the oil chamber on the piston cylinder.

[0009] Preferably, the clamping piece adopts an isosceles trapezoidal design, and the side of the clamping piece away from the compression ring is provided with anti-slip texture.

[0010] Preferably, the support ring is provided with a variable diameter groove that matches the clamping piece, the guide groove is in contact with the surface of the clamping piece, and the clamping piece is made of magnetic material.

[0011] Preferably, a magnetic ring is embedded in the extrusion ring.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] By using a combination of a support ring, positioning components, a variable diameter groove, a guide slide, and a magnetic ring, the magnetic force of the magnetic ring attracts the clamping pieces, causing them to fit against the inner sides of the guide slide and the variable diameter groove. Twisting the compression ring causes it to move axially along the support ring, pushing the clamping pieces along the variable diameter groove and the guide slide, bringing the magnetic ring closer to the axis. This allows for radial clamping and fixing of anchor rods of different diameters without the need to carry different clamping pieces and anchors. Compared to existing technologies, this method has the advantages of wide applicability and ease of use. Attached Figure Description

[0014] Figure 1 This is a first-view three-dimensional structural diagram of an embodiment of the application;

[0015] Figure 2 This is a second-view perspective three-dimensional structural diagram of an embodiment of the application;

[0016] Figure 3 This is a third-view stereoscopic structural diagram of an embodiment of the application.

[0017] Explanation of reference numerals in the attached drawings: 1. Hydraulic cylinder; 101. Piston cylinder; 102. Oil pipe joint; 103. Piston rod; 104. Piston plate; 2. Support ring; 3. Positioning assembly; 301. Extrusion ring; 302. Clamping plate; 4. Variable diameter groove; 5. Guide slide groove; 6. Magnetic ring. Detailed Implementation

[0018] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0019] This application discloses a post-anchoring seismic testing device for building renovation projects. (Refer to...) Figure 1-3 A seismic testing device for post-anchoring in building renovation projects is mainly composed of a hydraulic cylinder 1, a support ring 2, and a positioning component 3. It can accurately and stably clamp anchor rods of different diameters and can be easily connected with other testing equipment to meet the diverse needs of seismic testing for post-anchoring in building renovation projects.

[0020] Reference Figure 2 and Figure 3The hydraulic cylinder 1 serves as the power actuator of the entire testing device, comprising a piston cylinder 101, an oil pipe connector 102, a piston rod 103, and a piston plate 104. Both the piston cylinder 101 and piston rod 103 are hollow and made of high-strength alloy steel. The piston plate 104 is installed within the oil chamber of the piston cylinder 101. The oil pipe connector 102 uses a standard hydraulic interface and is connected to the piston cylinder 101 via welding or threaded connection. The welding connection ensures high strength and sealing at the interface. The oil pipe connector 102 is connected to an external hydraulic pump system.

[0021] Reference Figure 3 The support ring 2 is made of high-quality carbon steel, and its inner diameter is the same as that of the hollow inner diameter of the piston cylinder 101. Designed according to the diameter range of common anchor rods, a variable diameter groove 4 is opened on the inner surface. The variable diameter groove 4 can provide a smooth sliding channel for the clamping plate 302, allowing the clamping plate 302 to flexibly adjust its position according to the diameter of the anchor rod. It can also play a precise guiding and limiting role for the clamping plate 302, ensuring that the clamping plate 302 always runs along the predetermined trajectory during movement, accurately clamping the anchor rod, avoiding unstable or uneven clamping caused by the positional deviation of the clamping plate 302, thereby ensuring the clamping accuracy and reliability of the anchor rod. The outer surface of the support ring 2 is machined with threads, which fits well with the compression ring 301. When the compression ring 301 rotates and moves along the axial direction of the support ring 2, it can convert the rotation into radial compression of the clamping plate 302, thereby achieving the clamping operation of the anchor rod. This threaded connection method is simple and effective, making it easy for operators to perform manual operation. It also ensures the stable transmission of clamping force, improving the practicality and ease of operation of the device.

[0022] Reference Figure 3The compression ring 301 of the positioning component 3 is made of medium carbon steel, and the guide groove 5 on its inner wall is manufactured using precision milling technology. It fits tightly with the surface of the clamping plate 302, with the gap controlled within a very small range. This high-precision fit design allows the compression ring 301 to accurately convert its displacement into radial thrust on the clamping plate 302 during movement, ensuring that the clamping plate 302 can uniformly and stably clamp the anchor rod, avoiding situations where the local clamping force is too large or too small, thus ensuring the clamping quality and reliability of the anchor rod. The outer surface of the compression ring 301 is machined with textures for easy turning or equipped with a wrench slot, greatly facilitating operation. Whether installing or adjusting the clamping degree of the clamping plate 302, the operator can easily rotate the compression ring 301, improving work efficiency and reducing labor intensity. The magnetic ring 6 is made of permanent magnet material with sufficient magnetic force and is embedded in the compression ring 301, providing a stable and reliable magnetic attraction to the clamping plate 302. In the initial state, the magnetic force of the magnetic ring 6 enables the clamp 302 to be quickly and accurately positioned around the anchor rod, initially fixing the anchor rod and providing convenience and foundation for subsequent clamping operations. At the same time, through reasonable shielding and design, it is ensured that the magnetic force of the magnetic ring 6 will not interfere with other equipment and instruments in the testing process, ensuring the accuracy and reliability of the test data.

[0023] Referring to the figure, clamp 302 is made of alloy steel with good magnetic and mechanical properties, such as chromium-nickel-molybdenum alloy steel. Its isosceles trapezoidal shape is optimized, with the angle and length of the hypotenuse determined according to the diameter variation range of common anchor rods. This allows clamp 302 to adapt to anchor rods of different diameters, effectively clamping various specifications of anchor rods and improving the versatility and applicability of the device. The surface of clamp 302 has anti-slip textures, increasing friction with the anchor rod and effectively preventing slippage due to external forces during clamping. This ensures the stability of the anchor rod's position during testing, guaranteeing the authenticity and reliability of the test data. The number of clamps 302 is rationally selected based on the diameter of the anchor rod and the required clamping force, and they are evenly distributed on the inner circumference of the support ring 2. This avoids deformation or damage to the anchor rod due to uneven clamping force, further improving the clamping quality and safety of the device.

[0024] The implementation principle of a post-anchoring seismic testing device for building renovation projects according to an embodiment of this application is as follows:

[0025] The anchor rod to be tested is vertically inserted into the support ring 2, so that it is approximately located at the center of the clamping plate 302. Since the clamping plate 302 is made of magnetic material and the magnetic ring 6 on the compression ring 301 has a certain magnetic force, under the action of magnetic force, the clamping plate 302 will automatically move towards the anchor rod and initially fit against the surface of the anchor rod. Its isosceles trapezoidal design allows the clamping plate 302 to adapt to changes in the diameter of the anchor rod to a certain extent. At the same time, the anti-slip texture on the clamping plate 302 can increase the friction between it and the anchor rod, preventing the anchor rod from rotating or displacing during the initial clamping process.

[0026] The operator connects the external hydraulic power source to the oil chamber on the piston cylinder 101 via the oil pipe connector 102, starts the hydraulic pump, and injects an appropriate amount of hydraulic oil into the oil chamber. As the hydraulic oil is injected, the piston plate 104 moves the piston rod 103 upwards under the pressure of the oil. The piston rod 103, through its connection with the support ring 2, lifts the support ring 2 and its positioning assembly 3 upwards, allowing the upper end of the anchor rod to be accurately connected to other seismic testing equipment (such as loading devices, displacement sensors, etc.), ensuring that the anchor rod can withstand the predetermined load and accurately measure its displacement and deformation during the testing process.

[0027] After the anchor rod is connected to the testing equipment, the operator uses a wrench or other tools to tighten the clamping ring 301. The clamping ring 301 rotates along the outer surface of the support ring 2 and moves up or down (usually downward to clamp the anchor rod, depending on the actual operation requirements and design). Because the guide groove 5 on the clamping ring 301 is in close contact with the surface of the clamping piece 302, the movement of the clamping ring 301 applies a radial thrust to the clamping piece 302, causing it to slide along the variable diameter groove 4 towards the axis of the support ring 2. During the movement, the contact area between the clamping piece 302 and the anchor rod gradually increases, and the clamping force also increases accordingly. This allows for the firm clamping of anchor rods of different diameters and ensures that the clamping force is evenly distributed on the circumference of the anchor rod, effectively avoiding loosening or displacement of the anchor rod during the testing process. This realistically simulates the actual stress state of the anchoring structure, improving the accuracy and reliability of the testing results.

[0028] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0029] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0030] Finally: 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, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0031] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A post-anchoring seismic testing device for building renovation projects, comprising a hydraulic cylinder (1), characterized in that: The upper end of the cylinder (1) is provided with a support ring (2), and the support ring (2) is provided with a positioning component (3). The positioning component (3) includes a plurality of clamping pieces (302) that are slidably disposed inside the support ring (2). A compression ring (301) is sleeved on the outer side of the support ring (2), and the compression ring (301) can move along the axial direction of the support ring (2). The compression ring (301) is provided with a guide groove (5) that matches the clamping pieces (302).

2. The post-anchoring seismic testing device for building renovation projects according to claim 1, characterized in that: The cylinder (1) includes a piston cylinder (101), a piston plate (104) is slidably disposed on the inner side of the piston cylinder (101), and a piston rod (103) is disposed on the piston plate (104).

3. The post-anchoring seismic testing device for building renovation projects according to claim 2, characterized in that: Both the piston cylinder (101) and the piston rod (103) are hollow. An oil pipe joint (102) is provided on the side wall of the piston cylinder (101), and the oil pipe joint (102) is connected to the oil cavity on the piston cylinder (101).

4. The post-anchoring seismic testing device for building renovation projects according to claim 1, characterized in that: The clamping piece (302) adopts an isosceles trapezoidal design, and anti-slip texture is provided on the side of the clamping piece (302) away from the compression ring (301).

5. The post-anchoring seismic testing device for building renovation projects according to claim 4, characterized in that: The support ring (2) is provided with a variable diameter groove (4) that is adapted to the clamp (302), the guide groove (5) is in contact with the surface of the clamp (302), and the clamp (302) is made of magnetic material.

6. The post-anchoring seismic testing device for building renovation projects according to claim 1, characterized in that: A magnetic ring (6) is embedded on the extrusion ring (301).

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