Simply supported beam static load test reaction frame
By introducing the safety protection design of metal connecting frame and explosion-proof glass into the reaction frame of the simply supported beam static load test, the problem of stone debris flying when the simply supported beam breaks is solved, and the safety and stability of the test are improved.
Patent Information
- Application Number
- CN202422598166.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-28
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-10-28
AI Technical Summary
The existing simply supported beam reaction frame lacks safety protection components in static load pressure tests, resulting in flying debris when the simply supported beam breaks, which may injure the experimental observer.
A reaction frame for static load tests of simply supported beams was designed, which includes a support base, an adjustment drive assembly, an adjustment frame, and a safety protection assembly. The safety protection assembly consists of a metal connecting frame and explosion-proof glass, which is fixed to the outside of the adjustment frame by snap-fitting, allowing observers to observe through the explosion-proof glass while preventing debris from splashing.
It effectively prevents the observer from being injured by flying debris when the simply supported beam breaks, improves the safety of the test, and achieves stable clamping of the simply supported beam by adjusting the drive assembly and thread matching, thereby enhancing the connection stability.
Smart Images
Figure CN223377057U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of simply supported beam testing, in particular to a reaction frame for a simply supported beam static load test. Background Art
[0002] The simply supported beam is a common structural form, widely used in engineering and architecture. It is generally defined as a beam supported at both ends, with a free center section free of other constraints. A simply supported beam can be connected to other structures at both ends via supports that can withstand vertical loads and provide reaction forces without restricting the beam's rotation. This structural design allows for efficient load distribution and adaptability to diverse engineering requirements. When subjected to loads, a simply supported beam primarily experiences bending deformation, generating bending moments and shear forces.
[0003] To calculate the reaction and internal forces of a simply supported beam under maximum load, a static pressure test using a reaction frame is required. Currently, existing reaction frames for simply supported beams lack safety features on both sides of the frame. When a simply supported beam undergoes a static pressure test inside the reaction frame, the debris generated by the beam's fracture could splash and injure on-site observers. Therefore, this presents a safety hazard.
[0004] Based on this, we propose a simply supported beam static load test reaction frame to solve the above-mentioned problems. Utility Model Content
[0005] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the present invention to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.
[0006] Therefore, the purpose of the present invention is to provide a simply supported beam static load test reaction frame, which can solve the problem that the simply supported beam reaction frame lacks safety protection components during static load pressure testing, resulting in splashing of debris that may injure the experimental observer when it breaks.
[0007] In order to solve the above technical problems, the utility model provides a simply supported beam static load test reaction frame, which adopts the following technical solution: comprising a support base, with adjustment drive components installed on both sides of the support base, an adjustment frame installed on the top of the support base, and safety protection components respectively provided on both sides of the outside of the adjustment frame, the safety protection components comprising a metal connecting frame, explosion-proof glass installed on one side of the metal connecting frame, and connecting clamps respectively provided on both sides of the metal connecting frame away from the explosion-proof glass;
[0008] A first top pressure plate is connected to the top of the inner cavity of the adjustment frame, a second top pressure plate is provided at the bottom of the inner cavity of the first top pressure plate, top pressure regulators are respectively provided at both ends of the second top pressure plate and in the middle of the first top pressure plate, and a simply supported beam body is also placed between the three groups of top pressure regulators.
[0009] Optionally, connecting slots are provided on both sides of the exterior of the adjustment frame, and the connecting slots match the connecting card plate structure, and the connecting slots and the connecting card plate are snap-fitted.
[0010] Optionally, guide grooves are provided on both sides of the inner wall of the adjustment frame, and the interiors of the two groups of guide grooves are rotatably connected with forward and reverse screws, and one end of the forward and reverse screws is transmission-connected to the adjustment drive assembly.
[0011] Optionally, both ends of the first pressing plate and the second pressing plate are connected with guide blocks, and the middle of the guide blocks is also penetrated by positive and negative screw holes.
[0012] Optionally, the guide block and the guide groove are in sliding fit, and the forward and reverse screw holes and the forward and reverse screw rods are in threaded fit.
[0013] Optionally, the top pressure regulator includes a hydraulic cylinder, and the output end of the hydraulic cylinder is also connected to a placement seat.
[0014] In summary, the present invention has at least one of the following beneficial effects:
[0015] 1. This solution uses safety protection components installed on both sides of the outside of the adjustment frame. The safety protection components are composed of a metal connecting frame, explosion-proof glass and a connecting card plate, and are snap-fitted with the connecting card plate through a connecting slot, so that the two sets of metal connecting frames can be fixed on both sides of the outside of the adjustment frame. The experimental observer can observe the test conditions of the simply supported beam body inside the adjustment frame through the explosion-proof glass installed on the metal connecting frame. At the same time, it can also prevent the splashing of gravel caused by the breakage of the simply supported beam body from causing harm to the observer, effectively improving the safety of the equipment in the field of simply supported beam test technology.
[0016] 2. This solution is achieved by installing adjustment drive components on both sides of the support base, and setting guide grooves and forward and reverse screws on both sides of the interior of the adjustment frame. One end of the forward and reverse screws is connected to the adjustment drive components through transmission, and cooperates with the forward and reverse screw holes through threads. When the two sets of adjustment drive components operate synchronously, the adjustment frame can reasonably adjust the distance between the first top pressure plate and the second top pressure plate according to the thickness specifications of the simply supported beam body. At the same time, this design facilitates the limited clamping of the simply supported beam body to be tested, effectively enhances the connection stability between the simply supported beam body and the top pressure regulator, and reduces the impact of looseness on the experiment. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0019] Figure 2 This is a schematic diagram of the structure of the safety protection component of the utility model;
[0020] Figure 3 This is a schematic diagram of the adjustment frame structure of the utility model;
[0021] Figure 4 This is a schematic structural diagram of the first top pressure plate of the present utility model.
[0022] Explanation of the accompanying symbols: 1. Support base; 2. Adjustment drive assembly; 3. Adjustment frame; 4. Safety protection assembly; 5. Metal connecting frame; 6. Explosion-proof glass; 7. Connecting clamp; 8. First top pressure plate; 9. Second top pressure plate; 10. Top pressure regulator; 11. Simply supported beam body; 12. Connecting clamping slot; 13. Guide slot; 14. Forward and reverse screw rods; 15. Guide block; 16. Forward and reverse screw holes; 17. Hydraulic cylinder; 18. Placement seat. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0024] Example: Refer to Figures 1 to 4The utility model provides an embodiment of a simply supported beam static load test reaction frame, comprising a support base 1, with adjustment drive components 2 installed on both sides of the support base 1, an adjustment frame 3 installed on the top of the support base 1, and safety protection components 4 respectively provided on both sides of the outside of the adjustment frame 3, the safety protection component 4 comprising a metal connecting frame 5, an explosion-proof glass 6 is installed on one side of the metal connecting frame 5, and connecting clamps 7 are respectively provided on both sides of the metal connecting frame 5 away from the explosion-proof glass 6, a first top pressure plate 8 is connected to the top of the inner cavity of the adjustment frame 3, and a second top pressure plate 9 is provided at the bottom of the inner cavity of the first top pressure plate 8. Top pressure regulators 10 are respectively provided at both ends of the second top pressure plate 9 and in the middle of the first top pressure plate 8. A simply supported beam body 11 is also placed between the three groups of top pressure regulators 10. Through the structural design of the card connection between the connecting slot 12 and the connecting card plate 7, the two groups of metal connecting frames 5 can be limitedly connected to the outside of the adjustment frame 3 on both sides. By installing explosion-proof glass 6 in the middle of the two groups of metal connecting frames 5, the experimental observer can observe the test conditions of the simply supported beam body 11 inside the adjustment frame 3 through the explosion-proof glass 6, and can also prevent the fragments generated by the breakage of the simply supported beam body 11 from splashing and accidentally injuring the experimental observer on site.
[0025] Both sides of the outside of the adjusting frame 3 are provided with connecting slots 12, which match the structure of the connecting card plate 7. The connecting slots 12 and the connecting card plate 7 are snap-fitted. Through the structural design of the snap-fitting between the connecting slots 12 and the connecting card plate 7, it is convenient to limit the connection of the metal connecting frame 5 to the two sides of the adjusting frame 3. Guide grooves 13 are provided on both sides of the inner wall of the adjusting frame 3. The two groups of guide grooves 13 are rotatably connected to the inside of the forward and reverse screws 14, and one end of the forward and reverse screws 14 is connected to the adjusting drive assembly 2 for transmission. Through the adjusting drive assembly 2 installed on both sides of the support base 1, because one end of the forward and reverse screws 14 is connected to the adjusting drive assembly 2 for transmission, when the two groups of adjusting drive assemblies 2 run synchronously when powered on, the adjusting frame 3 can reasonably adjust the distance between the first top pressure plate 8 and the second top pressure plate 9 according to the thickness specifications of the simply supported beam body 11.
[0026] Both ends of the first top pressure plate 8 and the second top pressure plate 9 are connected with a guide block 15, and the middle part of the guide block 15 is also penetrated with a positive and negative screw hole 16. The positive and negative screw holes 16 of the guide block 15 respectively provided at both ends of the first top pressure plate 8 and the second top pressure plate 9 are used for connection and adjustment of the first top pressure plate 8 and the second top pressure plate 9. The guide block 15 and the guide groove 13 are slidably matched, and the positive and negative screw holes 16 and the positive and negative screw rods 14 are threadedly matched. The structural design of the threaded matching between the positive and negative screw holes 16 and the positive and negative screw rods 14 When the two sets of adjustment drive components 2 run synchronously when powered on, the adjustment frame 3 can reasonably adjust the distance between the first top pressure plate 8 and the second top pressure plate 9 according to the thickness specifications of the simply supported beam body 11. At the same time, it is also convenient for the simply supported beam body 11 to be tested to be limited and clamped inside the adjustment frame 3. The top pressure regulator 10 includes a hydraulic cylinder 17, and the output end of the hydraulic cylinder 17 is also connected to a placement seat 18. The placement seat 18 installed at the output end of the hydraulic cylinder 17 is used for limited placement of the simply supported beam body 11.
[0027] Working principle: This solution uses a safety protection component 4 installed on both sides of the outside of the adjustment frame 3. The safety protection component 4 is composed of a metal connecting frame 5, explosion-proof glass 6 and a connecting card plate 7. The safety protection component 4 is connected by connecting slots 12 on both sides of the outside of the adjustment frame 3, and the connecting slots 12 and the connecting card plate 7 are snap-fitted. The two groups of metal connecting frames 5 can be limitedly connected to the outside of the adjustment frame 3. By installing explosion-proof glass 6 in the middle of the two groups of metal connecting frames 5, the experimental observer can observe the test conditions of the simply supported beam body 11 inside the adjustment frame 3 through the explosion-proof glass 6. It can also prevent the fragments generated by the breakage of the simply supported beam body 11 from splashing and accidentally injuring the experimental observer on site, which can effectively improve the safety of the equipment in the field of simply supported beam test technology.
[0028] This solution is achieved by respectively installing an adjustment drive assembly 2 on both sides of the support base 1, and respectively setting a guide groove 13 and a forward and reverse screw 14 on both sides of the interior of the adjustment frame 3. Since one end of the forward and reverse screw 14 is connected to the adjustment drive assembly 2 by transmission, and the forward and reverse screw hole 16 is threadedly matched with the forward and reverse screw 14, when the two sets of adjustment drive assemblies 2 are powered on and run synchronously, the adjustment frame 3 can reasonably adjust the distance between the first top pressure plate 8 and the second top pressure plate 9 according to the thickness specification of the simply supported beam body 11, and at the same time, it is convenient for the simply supported beam body 11 to be tested to be limited and clamped inside the adjustment frame 3, which can improve the stability of the connection between the simply supported beam body 11 and the top pressure regulator 10, and avoid loosening between the simply supported beam body 11 and the top pressure regulator 10 to affect the progress of the experiment.
[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A simply supported beam static load test reaction frame, comprising a support base (1), characterized in that: Adjustment drive components (2) are installed on both sides of the support base (1), an adjustment frame (3) is installed on the top of the support base (1), and safety protection components (4) are respectively provided on both sides of the outside of the adjustment frame (3), and the safety protection components (4) include a metal connecting frame (5), an explosion-proof glass (6) is installed on one side of the metal connecting frame (5), and connecting card plates (7) are respectively provided on both sides of the metal connecting frame (5) away from the explosion-proof glass (6); The top of the inner cavity of the adjustment frame (3) is connected to a first top pressure plate (8), the bottom of the inner cavity of the first top pressure plate (8) is provided with a second top pressure plate (9), and top pressure regulators (10) are respectively provided at both ends of the second top pressure plate (9) and the middle of the first top pressure plate (8), and a simply supported beam body (11) is also placed between the three groups of top pressure regulators (10).
2. The reaction frame for static load test of simply supported beam according to claim 1, characterized in that: Both sides of the outside of the adjustment frame (3) are provided with connection slots (12), the connection slots (12) match the structure of the connection card plate (7), and the connection slots (12) and the connection card plate (7) are in a snap-fitting manner.
3. The reaction frame for static load test of simply supported beam according to claim 2, characterized in that: Guide grooves (13) are provided on both sides of the inner wall of the adjustment frame (3), and forward and reverse screw rods (14) are rotatably connected inside the two sets of guide grooves (13), and one end of the forward and reverse screw rods (14) is transmission-connected to the adjustment drive assembly (2).
4. The reaction frame for static load test of simply supported beam according to claim 3, characterized in that: Both ends of the first top pressure plate (8) and the second top pressure plate (9) are connected to guide blocks (15), and the middle of the guide block (15) is also provided with forward and reverse screw holes (16).
5. The reaction frame for static load test of simply supported beam according to claim 4, characterized in that: The guide block (15) and the guide groove (13) are in sliding engagement, and the forward and reverse screw holes (16) and the forward and reverse screw rods (14) are in threaded engagement.
6. The reaction frame for static load test of simply supported beam according to claim 1, characterized in that: The top pressure regulator (10) comprises a hydraulic cylinder (17), and the output end of the hydraulic cylinder (17) is also connected to a placement seat (18).