Concrete precast slab strength detection device

Abstract

The utility model relates to the field of concrete precast slabs, and discloses a concrete precast slab strength detection device which comprises a frame body, the top end of the frame body is connected with a sliding piece in a sliding mode, the top end of the sliding piece is connected with the top side of the frame body through a labor-saving assembly, and the bottom end of the frame body is connected with a shell through a connecting rod assembly. The bottom side of the shell is fixedly connected with a downward pressing detection head, the bottom side of the downward pressing detection head is connected with a protection plate through a clamping assembly, the middle end of the frame body is fixedly connected with a fixing frame, the middle end of the fixing frame is connected with the top side of the shell through a reset assembly, and the bottom side of the frame body is fixedly connected with a base. The protection plate is located on the top side of the base. According to the utility model, the down-pressing detection head can be protected, so that the surface of the down-pressing detection head is prevented from being damaged after the down-pressing detection head is tested for too many times, the subsequent detection error is reduced, the data is more accurate, the protection plate can be conveniently replaced, and the flexibility is improved.

Description

Technical Field

[0001] The utility model relates to the field of precast concrete panels, in particular to a precast concrete panel strength detection device. Background Art

[0002] Precast panels are floor panels used in early 20th century buildings. They are produced and processed in prefabrication yards and transported directly to construction sites for installation. Precast panels can effectively shorten construction periods and reduce construction costs. Therefore, precast panels have many uses in construction. For example, cement panels covering ditches beside roads and cement panels used as insulation layers on roofs can all be precast panels. During the use of concrete precast panels, strength testing is required to ensure their safety. Therefore, a strength testing device for concrete precast panels is required.

[0003] After searching, a Chinese patent disclosed a concrete precast slab strength detection mechanism with announcement number CN219084570U, including a fixed plate, a swing arm hinged on a mounting seat; a suspension assembly is installed at the bottom end of the swing arm, and a concrete precast slab is arranged on it; the free end of the swing assembly is connected to the swing arm for adjusting the position of the swing arm; the detection assembly is arranged on the swing assembly, and the bottom end of the detection assembly abuts against the upper surface of the concrete precast slab in the detection state, and the strength of the concrete precast slab is detected when force is applied; when the present application is used, it is convenient to adjust the position of the swing arm and the suspension assembly arranged at the bottom end through the swing assembly as needed, so as to realize the fixing work of concrete precast slabs of different sizes, and the suspension assembly can also cooperate with the detection assembly to detect the strength of the surface of the concrete precast slab, and the concrete precast slab is suspended to reduce the influence of external force on the detection, which can effectively improve the detection accuracy.

[0004] In the above-mentioned search patent technology, the surface of the downward pressure detection structure lacks protection, which may cause damage after too many tests, thereby causing subsequent tests to increase errors and inaccurate test data. Therefore, the technical personnel in this field provide a concrete precast slab strength detection device to solve the problems raised in the above-mentioned background technology. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a concrete precast slab strength detection device, aiming to improve the problem of lack of protection on the surface of the downward pressure detection structure in the prior art.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A concrete precast slab strength detection device comprises a frame, the top end of the frame is slidably connected to a sliding member, the top end of the sliding member is connected to the top side of the frame through a labor-saving component, the bottom end of the frame is connected to a shell through a connecting rod component, the bottom side of the shell is fixedly connected to a downward pressure detection head, the bottom side of the downward pressure detection head is connected to a protective plate through a clamping component, the middle end of the frame is fixedly connected to a fixing frame, the middle end of the fixing frame is connected to the top side of the shell through a reset component, the bottom side of the frame is fixedly connected to a base, and the protective plate is located on the top side of the base.

[0008] Through the above technical solution, detection instruments and equipment are installed inside the shell, and the downward pressure detection head is used to transmit the obtained data to the detection instruments and equipment inside the shell after pressing down and touching the precast concrete plate, so as to complete the data collection. The protective plate is made of aluminum plate and is used to protect the bottom surface of the downward pressure detection head to prevent the surface of the downward pressure detection head from being worn and damaged after contacting the precast concrete plate, thereby avoiding affecting data collection.

[0009] Furthermore, the labor-saving component includes a swivel seat fixedly connected to the top side of the frame, a curved rod is connected between the sliding member and the swivel seat, the left end of the curved rod is rotatably connected to the top end of the sliding member, and the middle end of the curved rod is rotatably connected to the top end of the swivel seat.

[0010] Through the above technical solution, by pressing down the right end of the curved rod, the middle end of the curved rod can be rotated on the swivel seat, tilting to the right as a whole, and the left end can be rotated on the top of the sliding member to lift the sliding member upward.

[0011] Furthermore, the connecting rod assembly includes a connecting rod 1 located on the left and right sides of the sliding member, the bottom end of the connecting rod 1 is rotatably connected to the connecting rod 2, the top end of the connecting rod 1 is rotatably connected to the sliding member, and the bottom end of the connecting rod 2 is rotatably connected to the top end of the shell.

[0012] Through the above technical solution, when the sliding part is lifted and slid, it will move upward together with the connecting rod 1, and the top end of the connecting rod 1 will rotate on the sliding part, and the bottom end will pull the connecting rod 2, so that the top end of the connecting rod 2 will rotate on the connecting rod 1, and the bottom end will rotate on the shell. The bending posture of the connecting rod 1 and the connecting rod 2 becomes a vertical posture, so that the shell drives the downward pressure detection head to move downward.

[0013] Furthermore, the reset assembly includes a telescopic rod located on the side close to the fixing frame and the shell, the top end of the telescopic rod is fixedly connected to the bottom side of the middle end of the fixing frame, the bottom end of the telescopic rod is fixedly connected to the top side of the shell, and the outer wall of the telescopic rod is provided with a reset spring.

[0014] Through the above technical solution, the telescopic rod is used to stabilize the reset spring and prevent the reset spring from twisting. When the housing drives the downward pressure detection head to move downward, the reset spring is stretched and connected to the telescopic rod for extension.

[0015] Furthermore, the locking assembly includes a plurality of clips fixedly connected to the bottom end of the clip and a plurality of slots opened on the periphery of the protective plate, the interior of the slots is fixedly connected with an abutment inclined plate, the bottom end of the clip is clamped on the outer periphery of the bottom side of the protective plate, and the outer periphery of the abutment inclined plate abuts against the inner periphery of the clip.

[0016] Through the above technical solution, the clamp has a certain elasticity, and the outer surface of the abutting inclined plate has a certain curvature. When the clamp abuts against the abutting inclined plate, it will deform along the arc on the abutting inclined plate. When installing the protective plate, by aligning the card slot on the protective plate with the clamp, when the clamp abuts against the abutting inclined plate, the clamp will deviate to the periphery and deform, and continue to push the protective plate upward. When the top end of the bottom end of the clamp reaches the outer periphery of the bottom side of the protective plate, it will reset and be clamped on the outer periphery of the bottom side of the protective plate, so that the protective plate is installed on the downward pressure detection head.

[0017] Furthermore, the length of the curved rod at the left end of the rotating seat is shorter than the length at the right end of the rotating seat.

[0018] Through the above technical solution, through the design of the curved rod, the lever principle can be used to increase the force at the left end of the curved rod, so that the sliding member can be pulled up with a greater force, and the downward displacement of the pressing detection head can be made with a smaller force.

[0019] Furthermore, the front and rear ends of the base are rotatably connected with a plurality of rollers.

[0020] Through the above technical solution, the front and rear ends of the base are sloped, and the slope combined with the rollers can save effort in loading and unloading heavy precast concrete panels.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the protective plate, the card part, the card slot and the abutting inclined plate cooperate with each other to protect the downward pressure detection head, thereby preventing the surface of the downward pressure detection head from being damaged after too many tests, so as to ensure that the subsequent detection error is reduced and the data is more accurate. At the same time, the protective plate can be replaced conveniently, which improves flexibility.

[0023] 2. In the utility model, through the cooperation between the bent rod, the rotating seat and the sliding member, a smaller force can be used to make the downward pressure detection head move downward to perform the detection work, thereby making the device more labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional diagram of a concrete precast slab strength detection device proposed by the utility model;

[0025] Figure 2 A schematic diagram of the position of a spring in a concrete precast slab strength detection device proposed by the utility model;

[0026] Figure 3 This is a structural schematic diagram of a pressure detection head and a protective plate of a concrete precast slab strength detection device proposed by the utility model;

[0027] Figure 4 The present invention is a schematic structural diagram of a clamping member and a limiting protrusion of a concrete precast slab strength detection device proposed by the present invention.

[0028] Legend:

[0029] 1. Frame; 2. Sliding part; 3. Rotating seat; 4. Bending rod; 5. Connecting rod 1; 6. Connecting rod 2; 7. Housing; 8. Pressing detection head; 9. Protective plate; 10. Fixed frame; 11. Telescopic rod; 12. Reset spring; 13. Clamp; 14. Abutting inclined plate; 15. Base; 16. Roller. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Reference Figure 1-3 The utility model provides an embodiment: a concrete precast slab strength detection device, comprising a frame 1, the top of the frame 1 is slidably connected to a sliding member 2, the bottom of the frame 1 is connected to a shell 7, the bottom side of the shell 7 is fixedly connected to a downward pressure detection head 8, the bottom side of the downward pressure detection head 8 is connected to a protective plate 9, the middle end of the frame 1 is fixedly connected to a fixed frame 10, the bottom side of the frame 1 is fixedly connected to a base 15, and the protective plate 9 is located on the top side of the base 15; the front and rear ends of the base 15 are rotatably connected to a plurality of rollers 16;

[0032] Specifically, the front and rear ends of the base 15 are sloped, and the slopes combined with the rollers 16 can save effort in loading and unloading heavy precast concrete panels. Detection instruments and equipment are installed inside the shell 7. The downward pressure detection head 8 is used to transmit the obtained data to the detection instruments and equipment inside the shell 7 after it touches the precast concrete panel, thereby completing data collection. The protective plate 9 is made of aluminum plate and is used to protect the bottom surface of the downward pressure detection head 8, prevent the surface of the downward pressure detection head 8 from being worn and damaged after contacting the precast concrete panel, and avoid affecting data collection.

[0033] Reference Figure 1 and Figure 2 A curved rod 4 is connected between the rotating seat 3 fixedly connected to the top side of the frame 1 and the sliding member 2. The left end of the curved rod 4 is rotatably connected to the top of the sliding member 2, and the middle end of the curved rod 4 is rotatably connected to the top of the rotating seat 3. The length of the curved rod 4 at the left end of the rotating seat 3 is shorter than the length at the right end of the rotating seat 3.

[0034] Specifically, through the design of the curved rod 4, the lever principle can be used to increase the force at the left end of the curved rod 4, so that the sliding member 2 can be pulled up with a greater force, and the downward pressure detection head 8 can be displaced downward with a smaller force. By pressing down the right end of the curved rod 4, the middle end of the curved rod 4 can be rotated on the rotating seat 3, tilted to the right as a whole, and the left end can be rotated on the top end of the sliding member 2, so that the sliding member 2 is lifted upward.

[0035] Reference Figure 1 and Figure 2 The bottom ends of the connecting rods 1 5 located on the left and right sides of the sliding member 2 are rotatably connected to the connecting rods 2 6, the top ends of the connecting rods 1 5 are rotatably connected to the sliding member 2, and the bottom ends of the connecting rods 2 6 are rotatably connected to the top ends of the housings 7; the top ends of the telescopic rods 11 located on the side close to the fixing frame 10 and the housing 7 are fixedly connected to the bottom side of the middle end of the fixing frame 10, the bottom ends of the telescopic rods 11 are fixedly connected to the top side of the housing 7, and the outer wall of the telescopic rods 11 is provided with a return spring 12;

[0036] Specifically, when the sliding member 2 is lifted and slid, it will move upward together with the connecting rod 1 5, and the top of the connecting rod 1 5 will rotate on the sliding member 2, and the bottom end will pull the connecting rod 2 6, so that the top of the connecting rod 2 6 will rotate on the connecting rod 1 5, and the bottom end will rotate on the housing 7, and the bending posture of the connecting rod 1 5 and the connecting rod 2 6 will change to a vertical posture, so that the housing 7 drives the downward pressure detection head 8 to move downward. The telescopic rod 11 is used to stabilize the reset spring 12 to prevent the reset spring 12 from twisting. When the housing 7 drives the downward pressure detection head 8 to move downward, the reset spring 12 will be stretched and connected to the telescopic rod 11 for extension.

[0037] Reference Figure 3 and Figure 4A plurality of clamps 13 fixedly connected to the bottom end of the clamp 13 and a plurality of clamping slots opened on the outer periphery of the protective plate 9, the inside of the clamping slot is fixedly connected with an abutting inclined plate 14, the bottom end of the clamp 13 is clamped on the outer periphery of the bottom side of the protective plate 9, and the outer periphery of the abutting inclined plate 14 abuts against the inner periphery of the clamp 13;

[0038] Specifically, the clamp 13 has a certain elasticity, and the outer surface of the abutting inclined plate 14 has a certain curvature. When the clamp 13 abuts against the abutting inclined plate 14, it will deform along the arc on the abutting inclined plate 14. When installing the protective plate 9, by aligning the card slot on the protective plate 9 with the clamp 13, when the clamp 13 abuts against the abutting inclined plate 14, the clamp 13 will be offset to the periphery and deformed, and the protective plate 9 will continue to be pushed upward. When the top end of the bottom end of the clamp 13 reaches the outer periphery of the bottom side of the protective plate 9, it will be reset and clamped on the outer periphery of the bottom side of the protective plate 9, so that the protective plate 9 is installed on the downward pressure detection head 8.

[0039] Working principle: When performing strength test on precast concrete panels, first place the precast concrete panels on the base 15, then press down the right end of the bent rod 4 so that the middle end of the bent rod 4 can rotate on the swivel seat 3, tilting the whole to the right, and rotate the left end on the top of the sliding member 2, lift the sliding member 2 upward, and move the connecting rod 1 5 connected thereto upward, and rotate the top of the connecting rod 1 5 on the sliding member 2, and pull the connecting rod 2 6 at the bottom end, so that the top of the connecting rod 2 6 rotates on the connecting rod 1 5, and the bottom end rotates on the shell 7, and the bending posture of the connecting rod 1 5 and the connecting rod 2 6 becomes a vertical posture, so that the shell 7 drives the downward pressure detection head 8 to move downward, and the precast concrete panels are tested. When installing the protective plate 9, align the card slot on the protective plate 9 with the card 13. When the card 13 abuts against the abutting inclined plate 14, the card 13 will be offset to the periphery and deformed, and continue to push the protective plate 9 upward. When the top end of the card 13 reaches the bottom periphery of the protective plate 9, it will be reset and stuck on the bottom periphery of the protective plate 9, thereby installing the protective plate 9 on the downward pressure detection head 8.

[0040] 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 substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A concrete precast panel strength detection device, comprising a frame (1), characterized in that: The top end of the frame (1) is slidably connected to a sliding member (2), the top end of the sliding member (2) is connected to the top side of the frame (1) via a labor-saving assembly, the bottom end of the frame (1) is connected to a shell (7) via a connecting rod assembly, the bottom side of the shell (7) is fixedly connected to a downward pressure detection head (8), the bottom side of the downward pressure detection head (8) is connected to a protective plate (9) via a snap-fit ​​assembly, the middle end of the frame (1) is fixedly connected to a fixing frame (10), the middle end of the fixing frame (10) is connected to the top side of the shell (7) via a reset assembly, the bottom side of the frame (1) is fixedly connected to a base (15), and the protective plate (9) is located on the top side of the base (15).

2. A precast concrete slab strength detection device according to claim 1, characterized in that: The labor-saving component comprises a swivel seat (3) fixedly connected to the top side of the frame (1); a curved rod (4) is connected between the sliding member (2) and the swivel seat (3); the left end of the curved rod (4) is rotatably connected to the top end of the sliding member (2); and the middle end of the curved rod (4) is rotatably connected to the top end of the swivel seat (3).

3. A precast concrete slab strength detection device according to claim 1, characterized in that: The connecting rod assembly comprises a connecting rod 1 (5) located on the left and right sides of the sliding member (2), the bottom end of the connecting rod 1 (5) is rotatably connected to a connecting rod 2 (6), the top end of the connecting rod 1 (5) is rotatably connected to the sliding member (2), and the bottom end of the connecting rod 2 (6) is rotatably connected to the top end of a housing (7).

4. A precast concrete slab strength detection device according to claim 1, characterized in that: The reset assembly comprises a telescopic rod (11) located on a side of the fixing frame (10) close to the housing (7), the top end of the telescopic rod (11) being fixedly connected to the bottom side of the middle end of the fixing frame (10), the bottom end of the telescopic rod (11) being fixedly connected to the top side of the housing (7), and the outer wall of the telescopic rod (11) being sleeved with a reset spring (12).

5. A precast concrete slab strength detection device according to claim 1, characterized in that: The clamping assembly comprises a plurality of clamping members (13) fixedly connected to the bottom end of the clamping member (13) and a plurality of clamping slots provided on the outer periphery of the protective plate (9); an abutting inclined plate (14) is fixedly connected inside the clamping slot; the bottom end of the clamping member (13) is clamped on the outer periphery of the bottom side of the protective plate (9), and the outer periphery of the abutting inclined plate (14) abuts against the inner periphery of the clamping member (13).

6. A precast concrete slab strength detection device according to claim 2, characterized in that: The length of the curved rod (4) at the left end of the rotating seat (3) is shorter than the length at the right end of the rotating seat (3).

7. A concrete precast slab strength detection device according to claim 1, characterized in that The front and rear ends of the base (15) are rotatably connected to a plurality of rollers (16).

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