Drawing device for detecting anchoring bearing capacity of concrete embedded steel bar
By designing a pulling device for testing the bearing capacity of concrete anchorage anchors that includes a chassis, a guide rod group, a central load-bearing plate and a fastening device, the problem of low detection efficiency in the existing technology is solved, and multi-specification and multi-dimensional testing is achieved. Efficient detection of position-anchored structures.
Patent Information
- Application Number
- CN202420950934.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-04-30
AI Technical Summary
It is difficult for the prior art to efficiently detect the bearing capacity of concrete planting reinforcement anchor structures, especially for unevenly distributed steel bars and steel bars of different thicknesses. Existing equipment cannot effectively improve the detection efficiency.
A pulling device for testing the anchorage bearing capacity of concrete planted bars is designed, which includes a chassis, a guide rod group, a central bearing plate, a sliding groove and a fastening device. The fastening device adjusts its position through the sliding groove, can clamp steel bars of different thicknesses, and performs pulling tests through a tensile machine.
It realizes one-time pull-out testing of anchoring structures with multiple specifications and locations, avoids repeated disassembly and assembly and multiple tests, improves detection efficiency, and saves time and effort.
Smart Images
Figure CN222379483U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of concrete anchor structure bearing capacity detection, in particular to a pulling device for concrete anchor bearing capacity detection. Background Art
[0002] Planting steel bars, also known as planting steel bars, are a type of steel bar post-anchoring connection technology in building structure seismic reinforcement projects that utilizes the gripping force of structural adhesive lock keys. It is the best choice for structural planting steel bar reinforcement and heavy load fastening applications. The anchoring of steel bars refers to the force-bearing steel bars of beams, slabs, columns and other components extending into the support or foundation.
[0003] Nowadays, it is generally necessary to pull the steel bars to test the bearing capacity of the anchoring structure. On the one hand, it is done by ordinary methods such as manual pulling and hammering, and on the other hand, a single steel bar is clamped and pulled with the help of equipment. However, the distribution of the embedded steel bars is not necessarily evenly spaced, and the thickness of each steel bar may also be different. Even with the help of existing equipment, the efficiency cannot be greatly improved, and improvement is needed. Utility Model Content
[0004] The technical problem to be solved by the utility model is: in order to solve the problems existing in the above-mentioned background technology, an improved pulling device for detecting the bearing capacity of concrete embedded steel bar anchoring is provided.
[0005] The technical solution adopted by the utility model to solve its technical problems is: a pulling device for testing the bearing capacity of concrete rebar anchoring, comprising a chassis, a central bearing plate movably connected to the chassis through a guide rod group, a sliding groove is arranged on the central bearing plate, a plurality of fastening devices are slidably arranged in the sliding groove, and the rear end of the central bearing plate is externally connected to a tensile machine through a connecting device.
[0006] By adopting the above technical solution, the fastening device itself can slide to adjust the position, and then can clamp steel bars of different thicknesses, so that anchoring and pulling of multiple specifications and multiple positions can be achieved with only one test, without repeated disassembly and assembly, which saves time and effort.
[0007] Furthermore, the fastening device of the utility model comprises a movable terminal slidably arranged in the sliding groove, and the front end of the movable terminal is connected with an adjustable fastener;
[0008] By adopting the above technical solution, since the pulling direction is consistent, the movable terminal can be equipped with a position locking structure or not.
[0009] Furthermore, the adjustable fastener described in the utility model includes two front and rear fastening plates connected by screws, and the fastening adjustment is achieved by setting an adjusting nut, and the nut can be installed on the front and rear screws according to needs.
[0010] Furthermore, the connection device described in the utility model comprises a connection block installed at the rear end of the central bearing plate, and the front and rear ends of the connection block are connected to the connection column of the tensile machine through a chain.
[0011] Furthermore, a spring buffer is provided at the bottom end of the guide rod group in the chassis of the utility model to facilitate buffering and shock absorption when the steel bars are pulled out, thereby protecting the device.
[0012] The beneficial effects of the utility model are: solving the defects existing in the background technology, designing a special pull-out test device for the bearing capacity of a steel bar anchoring structure, which can not only realize the clamping of multiple steel bars with uneven distribution structures, but also adapt to structures of different thicknesses at the same time, and a task that originally required multiple disassembly and assembly and multiple pull-out tests can be completed with one pull-out test, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural schematic diagram of a preferred embodiment of the utility model;
[0014] In the figure: 1. Chassis, 2. Guide rod group, 3. Central bearing plate, 4. Sliding groove, 5. Tensile machine, 6. Moving terminal, 7. Screw, 8. Fastening plate, 9. Adjusting nut, 10. Connecting block, 11. Chain, 12. Connecting column, 13. Spring buffer. DETAILED DESCRIPTION
[0015] Now the utility model is further described in detail in conjunction with the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.
[0016] like Figure 1 The pulling device shown is for testing the bearing capacity of concrete rebar anchoring, comprising a chassis 1, to which a central bearing plate 3 is movably connected via a guide rod group 2, the central bearing plate 3 is provided with a sliding groove 4, in which a plurality of fastening devices are slidably provided, and the rear end of the central bearing plate 3 is externally connected to a tensile testing machine 5 via a connecting device.
[0017] The fastening device comprises a movable terminal 6 slidably arranged in the sliding groove 4, and an adjustable fastener is connected to the front end of the movable terminal 6; since the pulling direction is consistent, the movable terminal may be equipped with a position locking structure or not.
[0018] The adjustable fastener includes two front and rear fastening plates 8 connected by screws 7, and the fastening adjustment is achieved by setting an adjusting nut 9, which can be installed on the front and rear screws as required. The connecting device includes a connecting block 10 installed at the rear end of the central bearing plate 3, and the front and rear ends of the connecting block 10 are connected to the connecting column 12 of the tensile machine 5 through a chain 11. A spring buffer 13 is also provided at the bottom end of the guide rod group 2 in the chassis 1 to facilitate buffering and shock absorption and protect the equipment.
[0019] Working principle:
[0020] When facing steel bars with different anchoring densities and outer diameters, first move the chassis closer, slide and adjust the position of the fastening device according to the position of the steel bars, push the chassis until several steel bars are inserted into the fastening device, clamp the steel bars with the adjustable fasteners by adjusting the nuts, pull the central bearing plate through the tensile machine for tensile testing, and analyze the bearing capacity by on-site observation and the data from the tensile machine. It only takes one test to achieve anchoring and pulling of multiple specifications and multiple positions, without repeated disassembly and assembly, which saves trouble and effort.
[0021] The above description only describes the specific implementation methods of the utility model. Various examples do not limit the essential content of the utility model. Ordinary technicians in the relevant technical field can modify or deform the specific implementation methods described above after reading the description without departing from the essence and scope of the utility model.
Claims
1. A pulling device for testing the bearing capacity of concrete anchor bolts, characterized in that: The invention comprises a chassis (1), wherein the chassis (1) is movably connected to a central bearing plate (3) via a guide rod group (2), a sliding groove (4) is provided on the central bearing plate (3), a plurality of fastening devices are slidably provided in the sliding groove (4), and the rear end of the central bearing plate (3) is externally connected to a tensile machine (5) via a connecting device.
2. A pulling device for testing the bearing capacity of concrete anchor bolts as claimed in claim 1, characterized in that: The fastening device comprises a movable terminal (6) slidably arranged in the sliding groove (4), and the front end of the movable terminal (6) is connected to an adjustable fastener.
3. A pulling device for testing the bearing capacity of concrete anchor bolts as claimed in claim 2, characterized in that: The adjustable fastener comprises two front and rear fastening plates (8) connected by screw rods (7), and fastening adjustment is achieved by arranging an adjusting nut (9).
4. A pulling device for testing the bearing capacity of concrete anchor bolts as claimed in claim 1, characterized in that: The connecting device comprises a connecting block (10) installed at the rear end of the central bearing plate (3), and the front and rear ends of the connecting block (10) are connected to the connecting column (12) of the tensile machine (5) through a chain (11).
5. A pulling device for testing the bearing capacity of concrete anchor bolts as claimed in claim 1, characterized in that: A spring buffer (13) is also provided at the bottom end of the guide rod group (2) in the chassis (1).