Load testing device after production of laminated beam plate

Abstract

The invention provides a load testing device after production of a superposed beam plate, and relates to the technical field of load testing, the load testing device comprises a supporting base, and a mounting base is fixedly mounted in the middle of the left side of the supporting base on the left side; an adjusting plate is arranged at the top of the adjusting sliding rail; the top of the supporting base is sleeved with a testing sliding seat in a sliding mode. According to the technical scheme, a plurality of sensors can be synchronously fixed or unfixed under the action of a related mechanism by manually rotating the control screw rod, so that the maintenance work is greatly facilitated, when one or more of the plurality of sensors break down, a worker can quickly and easily disassemble and replace the sensors, and the working efficiency is greatly improved. The problems that in order to ensure the testing precision, sensors are often densely distributed on a supporting piece of a testing device to collect data, however, if the multi-sensor configuration is damaged in long-term use, the sensors need to be disassembled and replaced one by one, the steps are tedious, and the maintenance efficiency is low are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of load testing, and particularly to a load testing device for a composite beam and slab after production. Background Art

[0002] Before the composite beam and slab are put into use, in order to ensure that their quality meets the standards, strict quality tests must be carried out. Among them, the load test is crucial and directly related to the service performance of the composite beam and slab. Therefore, a professional load testing device needs to be used to test the load of the composite beam and slab to ensure the safety and reliability of its later use. For example, the patents with application numbers CN202410806088.X and CN202310011315.5. To ensure the test accuracy, the above testing devices often densely arrange sensors on the support members to collect data. However, if such a multi-sensor configuration is damaged during long-term use, it needs to be disassembled and replaced one by one, and the steps are cumbersome, resulting in low maintenance efficiency and affecting the continuity and efficiency of the test work. Summary of the Invention

[0003] The embodiment of the present disclosure relates to a load testing device for a composite beam and slab after production. By manually rotating and controlling the lead screw, multiple sensors can be simultaneously fixed or unfixed under the action of the corresponding structure. With such a design, even if multiple sensors are damaged, the staff can quickly and conveniently disassemble and replace the sensors, simplifying the maintenance steps of the sensing components in the testing device and not affecting the continuity and efficiency of the test work due to the replacement of the sensing components. After the staff manually rotate and control the lead screw to unfix multiple sensors, the corresponding limit cards will also withdraw from the limit card slots and auxiliary card slots, so that the driving motor is no longer limited to the mounting base. Thus, during the process of replacing the sensing components, the driving components in the device can also be in an unfixed state, facilitating the maintenance or replacement of the driving components by the staff.

[0004] In the first aspect of the present disclosure, a load testing device after the production of laminated beam slabs is provided, specifically including: a support base, with an installation base fixedly installed at the center position on the left side of the left support base; auxiliary card slots are opened on the front and rear sides of the installation base; the inner side of the support base is slidably installed on an adjustment slide rail; an adjustment plate is provided at the top of the adjustment slide rail; a test slide seat is sleeved and slidably installed on the top of the support base; an installation plate is fixedly installed on the top of the test slide seat; an adjustment guide rail is fixedly installed on the installation plate; a bearing plate is provided on the adjustment guide rail; an installation card slot is opened on the top of the bearing plate; a sensor is placed inside the installation card slot; positioning clips are slidably installed on the front and rear sides inside the installation card slot; a force receiving groove is opened at the outer end of the bottom of the positioning clip; guide grooves are opened on the front and rear sides inside the bearing plate; a transmission slide plate is slidably installed inside the guide groove; a top push plate is fixedly installed at the top end of the transmission slide plate; force receiving blocks are fixedly installed on the front and rear sides of the bottom of the transmission slide plate; transmission push plates are slidably installed at the front and rear ends of the bearing plate.

[0005] In at least some embodiments, a driving motor is slidably installed on the installation base; limit card slots are opened on the front side of the two sides of the driving motor slide rail; a control screw rod is rotatably installed on the left side of the left support base; a connecting piece is also installed on the control screw rod through screw threads; a limit card is fixedly installed at the inner end of the connecting piece; the limit card slot and the auxiliary card slot are in a coincident state; the inner end of the limit card is clamped inside the limit card slot and the auxiliary card slot.

[0006] In at least some embodiments, two opposite screw threads are opened in a front and rear opposing state on the circumferential outer wall of the control screw rod; a connecting plate is fixedly installed at the right end of the connecting piece; a test rotating shaft is rotatably installed at the center position on the top of the support base; a test cam is fixedly installed on the circumferential outer wall of the test rotating shaft; the left end of the test rotating shaft is connected to the output shaft of the driving motor through a spline.

[0007] In at least some embodiments, the left end of the adjustment slide rail is fixedly connected to the right end of the connecting plate; the adjustment plate at the center position is fixedly connected to the adjustment slide rail, and the remaining adjustment plates are slidably connected to the adjustment slide rail; a connecting chute is opened on the inner side of the adjustment plate.

[0008] In at least some embodiments, the inner top end of the test slide seat is in close contact with the outer wall of the test cam; two groups of screw threads are opened on the circumferential outer wall of the adjustment screw rod; the number of turns of the outer screw thread on the adjustment screw rod is the same as that of the inner screw thread, and the length of the outer screw thread is twice that of the inner screw thread.

[0009] In at least some embodiments, adjusting lead screws are rotatably installed at the front and rear ends of the mounting plate; a sprocket is fixedly installed at the right end of each adjusting lead screw; the two sprockets are connected by a chain; the bearing plate located at the middle position is fixedly connected to the adjusting guide rail, and the remaining bearing plates are slidably connected to the adjusting guide rail.

[0010] In at least some embodiments, the two outermost bearing plates are connected to the adjusting lead screws through the external threads of the adjusting lead screws located on the outside, and the remaining bearing plates are connected to the adjusting lead screws through the internal threads of the adjusting lead screws located on the inside; the adjusting lead screws are rotatably connected to the bearing plate located at the middle position.

[0011] In at least some embodiments, the inner end of the positioning clamp is in an arc structure; the arc surface of the positioning clamp is in clamping contact with the outer wall of the sensor; the inner side of the force receiving groove is in an inclined structure; an inlay plate is fixedly installed on the inner side of the bottom of the positioning clamp; a spring A is inlaid between the inner side of the inlay plate and the interior of the bearing plate.

[0012] In at least some embodiments, the top of the pushing plate is in contact with the inclined surface of the force receiving groove; the outer side of the force receiving block is in an inclined structure.

[0013] In at least some embodiments, the outer end of the transmission pushing plate is also slidably installed inside the connecting chute; a spring B is jointly inlaid between the top of the transmission sliding plate and the bottom of the bearing plate.

[0014] The present invention provides a load testing device after the production of laminated beam plates, which has the following beneficial effects: 1. Only by manually rotating the control lead screw, under the action of relevant mechanisms, the state conversion of fixing or releasing the fixation of multiple sensors can be synchronously achieved. Such a design greatly facilitates the maintenance work. When one or more of the multiple sensors fail, the staff can quickly and easily disassemble and replace the sensors, greatly simplifying the maintenance process of the sensing components in the testing device and ensuring that the continuity and efficiency of the testing work are not affected by the replacement of the sensing components.

[0015] 2. When the fixing of multiple sensors is released by manually rotating the control lead screw of this testing device, the corresponding limit cards will automatically disengage from the limit card slots and the auxiliary card slots, so that the driving motor is no longer fixed by the mounting base. This design enables the driving components of the device to be in an unfixed state during the process of replacing the sensing components, providing great convenience for the staff to maintain or replace the driving components. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below.

[0017] The accompanying drawings in the following description only relate to some embodiments of the present invention and do not limit the present invention.

[0018] In the accompanying drawings: Figure 1 A schematic diagram showing the overall structure of the present application is shown; Figure 2 Shows the Figure 1 right-side perspective structure schematic diagram of; Figure 3 A schematic diagram showing the overall disassembled state structure of the present application is shown; Figure 4 A schematic diagram showing a half-section structure of the carrier plate of the present application is shown; Figure 5 Shows the Figure 4 magnified structure schematic diagram of part A in; Figure 6 A schematic diagram showing the connecting member and the adjusting plate of the present application is shown; Figure 7 A schematic diagram showing the carrier plate, the adjusting plate and the structure of the present application is shown; Figure 8 A schematic diagram showing the disassembled state structure of the carrier plate of the present application is shown; List of reference numerals 1. Support base; 2. Mounting base; 3. Auxiliary card slot; 4. Driving motor; 5. Limit card slot; 6. Control lead screw; 7. Connecting member; 8. Limit card; 9. Connecting plate; 10. Test rotating shaft; 11. Test cam; 12. Adjusting slide rail; 13. Adjusting plate; 14. Connecting chute; 15. Test slide block; 16. Mounting plate; 17. Adjusting lead screw; 18. Adjusting guide rail; 19. Sprocket; 20. Carrier plate; 21. Mounting card slot; 22. Sensor; 23. Positioning clamp; 24. Stress groove; 25. Embedded plate; 26. Spring A; 27. Guide groove; 28. Transmission slide plate; 29. Thrust plate; 30. Stress block; 31. Transmission push plate; 32. Spring B. Detailed implementation manners

[0019] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0020] Please refer to Figures 1 to 8 : Embodiment 1: The present invention provides a load testing device after the production of laminated beam slabs, comprising: a support base 1, with an installation base 2 fixedly installed at the center position on the left side of the left support base 1; auxiliary card slots 3 are provided on the front and rear sides of the installation base 2; the inner side of the support base 1 is slidably installed on an adjustment slide rail 12; an adjustment plate 13 is arranged at the top of the adjustment slide rail 12; a test slide seat 15 is sleeved and slidably installed on the top of the support base 1; an installation plate 16 is fixedly installed on the top of the test slide seat 15; an adjustment guide rail 18 is fixedly installed on the installation plate 16; a bearing plate 20 is arranged on the adjustment guide rail 18; an installation card slot 21 is provided at the top of the bearing plate 20; a sensor 22 is placed inside the installation card slot 21; positioning clamps 23 are slidably installed on the front and rear sides inside the installation card slot 21; a force receiving groove 24 is provided at the outer end of the bottom of the positioning clamp 23; guide grooves 27 are provided on the front and rear sides inside the bearing plate 20; a transmission slide plate 28 is slidably installed inside the guide groove 27; a top push plate 29 is fixedly installed at the top of the transmission slide plate 28; force receiving blocks 30 are fixedly installed on the front and rear sides of the bottom of the transmission slide plate 28; transmission push plates 31 are slidably installed at the front and rear ends of the bearing plate 20. Start the drive motor 4 to drive the test rotating shaft 10 and the test cam 11 to rotate, so that the test cam 11 drives the test slide seat 15, the bearing plate 20 and the laminated beam slab to move up and down by using its own cam structure, simulate an earthquake by moving up and down, conduct a load test on the laminated beam slab during an earthquake, and manually rotate the adjustment screw rod 17. The adjustment screw rod 17 can move and expand multiple bearing plates 20 by using different screw threads, change the position of the sensor 22, enable the sensor 22 to collect data at different positions of the laminated beam slab, and improve the comprehensiveness of the load test for the laminated beam slab.

[0021] Embodiment 2. On the basis of Embodiment 1, a driving motor 4 is slidably mounted on the mounting base 2; limiting card slots 5 are provided on both sides of the front side of the slide rail of the driving motor 4; a control lead screw 6 is rotatably mounted on the left side of the left support base 1; a connecting member 7 is also mounted on the control lead screw 6 through screw threads; a limiting card 8 is fixedly mounted at the inner end of the connecting member 7; the limiting card slot 5 and the auxiliary card slot 3 are in a coincident state; the inner end of the limiting card 8 is clamped inside the limiting card slot 5 and the auxiliary card slot 3; two opposite screw threads are provided on the circumferential outer wall of the control lead screw 6 in a front-back opposing state; the right end of the connecting member 7 is fixedly mounted on the connecting plate 9; a test rotating shaft 10 is rotatably mounted at the center of the top of the support base 1; a test cam 11 is fixedly mounted on the circumferential outer wall of the test rotating shaft 10; the left end of the test rotating shaft 10 is connected to the output shaft of the driving motor 4 through a spline; the left end of the adjustment slide rail 12 is fixedly connected to the right end of the connecting plate 9; the adjustment plate 13 at the center position is fixedly connected to the adjustment slide rail 12, and the remaining adjustment plates 13 are slidably connected to the adjustment slide rail 12; a connecting chute 14 is provided inside the adjustment plate 13. After the sensor 22 is damaged, the control lead screw 6 is manually rotated, so that under the action of the two opposite screw threads, it drives the two connecting members 7, the connecting plate 9, the adjustment slide rail 12 and the two groups of adjustment plates 13 to move outwards, so that the two groups of adjustment plates 13 drive the two transmission push plates 31 to move outwards, so that the transmission push plates 31 cancel the pushing on the inclined surface of the force-receiving block 30, so that the transmission slide plate 28 is no longer stressed and drives the pushing plate 29 to descend under the action of the spring B32, so that it no longer pushes on the inclined surface of the force-receiving groove 24, so that the positioning clip 23 moves outwards under the action of the spring A26 to cancel the positioning of the sensor 22, facilitating the replacement and maintenance of the sensor 22 by the staff.

[0022] Embodiment 3, based on Embodiment 2, test that the inner top end of the sliding seat 15 is in fitting contact with the outer wall of the test cam 11; adjust that two sets of threads are provided on the circumferential outer wall of the adjusting screw rod 17; the number of thread turns of the outer side of the adjusting screw rod 17 is the same as that of the inner side, and the length of the outer thread is twice that of the inner thread; the front and rear ends of the mounting plate 16 are rotatably mounted with the adjusting screw rod 17; a sprocket 19 is fixedly mounted at the right end of the adjusting screw rod 17; the two sprockets 19 are connected by a chain; the bearing plate 20 at the central position is fixedly connected to the adjusting guide rail 18, and the remaining bearing plates 20 are slidably connected to the adjusting guide rail 18; the two outermost bearing plates 20 are connected to the adjusting screw rod 17 through the outer threads on the adjusting screw rod 17, and the remaining bearing plates 20 are connected to the adjusting screw rod 17 through the inner threads on the adjusting screw rod 17; the adjusting screw rod 17 is rotatably connected to the bearing plate 20 at the central position; the inner end of the positioning clip 23 is in an arc structure; the arc surface of the positioning clip 23 is in clamping contact with the outer wall of the sensor 22; the inner side of the stress groove 24 is in an inclined structure; an inlay plate 25 is fixedly mounted on the inner side of the bottom of the positioning clip 23; a spring A26 is inlaid between the inner side of the inlay plate 25 and the inside of the bearing plate 20; the top of the pushing plate 29 is in contact with the inclined surface of the stress groove 24; the outer side of the stress block 30 is in an inclined structure; the outer end of the transmission push plate 31 is also slidably mounted inside the connecting chute 14; a spring B32 is jointly inlaid between the top of the transmission sliding plate 28 and the bottom of the bearing plate 20. During the outward movement of the connecting member 7, the limit card 8 will also slide out from the inside of the limit card slot 5 and the auxiliary card slot 3, and no longer limit the driving motor 4 on the mounting base 2, facilitating the maintenance of the driving motor 4 by the staff.

[0023] Working principle of this embodiment: During use, the laminated beam slab is placed on multiple bearing plates 20 through a hoisting device, so that the laminated beam slab contacts the sensors 22. Then, a load is placed on the laminated beam slab. Immediately afterwards, the driving motor 4 is started, causing it to drive the test rotating shaft 10 and the test cam 11 to rotate. The test cam 11 uses its own cam structure to drive the test sliding seat 15, the bearing plate 20, and the laminated beam slab to move up and down, simulating an earthquake by the up and down movement to conduct a load test on the laminated beam slab during an earthquake. And by manually rotating and adjusting the screw rod 17, the screw rod 17 can move and expand multiple bearing plates 20 using different screw threads, changing the positions of the sensors 22, enabling the sensors 22 to collect data at different positions of the laminated beam slab, improving the comprehensiveness of the load test for the laminated beam slab. After the sensors 22 are damaged, by manually rotating and controlling the screw rod 6, it drives two connecting pieces 7, a connecting plate 9, an adjustment slide rail 12, and two groups of adjustment plates 13 to move outwards under the action of two opposite screw threads, causing the two groups of adjustment plates 13 to drive two transmission push plates 31 to move outwards, canceling the pushing of the inclined surface of the force receiving block 30 by the transmission push plates 31, causing the transmission sliding plate 28 to no longer be stressed and drive the pushing plate 29 to descend under the action of the spring B32, so that it no longer pushes the inclined surface of the force receiving groove 24, and causing the positioning clamp 23 to move outwards under the action of the spring A26 to cancel the positioning of the sensors 22, facilitating the replacement and maintenance of the sensors 22 by the staff. And during the outward movement of the connecting piece 7, the limit card 8 will also slide out from the inside of the limit card slot 5 and the auxiliary card slot 3, no longer limiting the driving motor 4 on the mounting base 2, facilitating the maintenance of the driving motor 4 by the staff.

[0024] In this article, the following points need to be noted: 1. The attached drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure. Other structures can refer to the general design.

[0025] 2. Without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0026] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A load testing device for composite beams and slabs after production, comprising: A support base (1) is located on the left side; a mounting base (2) is fixedly installed at the center position of the left side of the support base (1); it is characterized in that auxiliary card slots (3) are opened on the front and rear sides of the mounting base (2); the inner side of the support base (1) is slidably installed on the adjustment slide rail (12); an adjustment plate (13) is arranged on the top of the adjustment slide rail (12); a test slide seat (15) is slidably installed on the top of the support base (1); a mounting plate (16) is fixedly installed on the top of the test slide seat (15); an adjustment guide rail (18) is fixedly installed on the mounting plate (16); a bearing plate (20) is arranged on the adjustment guide rail (18); the bearing plate (20) A mounting slot (21) is provided at the top; a sensor (22) is placed inside the mounting slot (21); positioning clips (23) are slidably mounted on the front and rear sides of the mounting slot (21); a force-bearing slot (24) is provided at the bottom outer end of the positioning clip (23); guide slots (27) are provided at the front and rear sides of the bearing plate (20); a transmission slide plate (28) is slidably mounted inside the guide slot (27); a push plate (29) is fixedly mounted at the top of the transmission slide plate (28); force blocks (30) are fixedly mounted on the front and rear sides of the bottom of the transmission slide plate (28); and transmission push plates (31) are slidably mounted at the front and rear ends of the bearing plate (20).

2. A load testing device for composite beams and slabs after production according to claim 1, characterized in that: A driving motor (4) is slidably mounted on the mounting base (2); limit slots (5) are provided on both sides of the front side of the slide rail of the driving motor (4); a control screw rod (6) is rotatably mounted on the left side of the support base (1) on the left side; a connecting piece (7) is also mounted on the control screw rod (6) through threaded installation; a limit card (8) is fixedly mounted on the inner end of the connecting piece (7); the limit slot (5) and the auxiliary slot (3) are in an overlapping state; the inner end of the limit card (8) is clamped inside the limit slot (5) and the auxiliary slot (3).

3. A load testing device for composite beam and slab after production according to claim 2, characterized in that: The control screw rod (6) has two opposite threads on its circumferential outer wall in a front-to-back opposition; the right end of the connecting member (7) is fixedly mounted on a connecting plate (9); a test shaft (10) is rotatably mounted at the center of the top of the support base (1); a test cam (11) is fixedly mounted on the circumferential outer wall of the test shaft (10); and the left end of the test shaft (10) is connected to an output shaft of a drive motor (4) via a spline.

4. A load testing device for composite beams and slabs after production according to claim 3, characterized in that: The left end of the adjustment slide rail (12) is fixedly connected to the right end of the connecting plate (9); the adjustment plate (13) located in the center is fixedly connected to the adjustment slide rail (12), and the remaining adjustment plates (13) are slidably connected to the adjustment slide rail (12); a connecting slide groove (14) is provided on the inner side of the adjustment plate (13).

5. A load testing device for composite beams and slabs after production according to claim 4, characterized in that: The inner top end of the test slide (15) is in close contact with the outer wall of the test cam (11); the front and rear ends of the mounting plate (16) are rotatably mounted with an adjustment screw (17); two groups of threaded teeth are provided on the circumferential outer wall of the adjustment screw (17); the number of threaded teeth on the outer side of the adjustment screw (17) is the same as the number of threaded teeth on the inner side, and the length of the outer threaded teeth is twice that of the inner threaded teeth.

6. A load testing device for composite beam and slab after production according to claim 5, characterized in that: A sprocket (19) is fixedly mounted on the right end of the adjusting screw rod (17); the two sprockets (19) are connected via a chain; the bearing plate (20) located in the center is fixedly connected to the adjusting guide rail (18), and the remaining bearing plates (20) are slidably connected to the adjusting guide rail (18).

7. A load testing device for composite beam and slab after production according to claim 6, characterized in that: The two outermost bearing plates (20) are connected to the adjusting screw (17) via threads on the outer sides of the adjusting screw (17), and the remaining bearing plates (20) are connected to the adjusting screw (17) via threads on the inner sides of the adjusting screw (17); the adjusting screw (17) is rotatably connected to the bearing plate (20) located in the middle.

8. A load testing device for composite beams and slabs after production according to claim 7, characterized in that: The inner end of the positioning clamp (23) is in an arc-shaped structure; the arc-shaped surface of the positioning clamp (23) is in clamping contact with the outer wall of the sensor (22); the inner side of the force-bearing groove (24) is in an inclined structure; an embedded plate (25) is fixedly installed on the inner side of the bottom of the positioning clamp (23); and a spring A (26) is embedded between the inner side of the embedded plate (25) and the inside of the bearing plate (20).

9. A load testing device for composite beam-slab after production according to claim 8, characterized in that: The top of the push plate (29) contacts the inclined surface of the force bearing groove (24); and the outer side of the force bearing block (30) is in an inclined structure.

10. A load testing device for composite beams and slabs after production according to claim 9, characterized in that: The outer end of the transmission push plate (31) is also slidably mounted inside the connecting slide groove (14); a spring B (32) is embedded between the top of the transmission slide plate (28) and the bottom of the bearing plate (20).

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