Strength testing device for concrete

Abstract

The utility model belongs to the technical field of concrete testing, and particularly relates to a strength testing device for concrete, which comprises a base, a notched vertical plate is fixed at the top of the base, a clamping component is arranged on the notched vertical plate, a U-shaped table is attached to the top of the base, and a clamping component is arranged on the U-shaped table. A U-shaped table is fixed to the top of the base, a driving assembly used for driving the U-shaped table to move transversely is arranged at the top of the base, a hydraulic cylinder is fixed to the top of the U-shaped table, a sliding block is fixed to the ejection end of the hydraulic cylinder, a spring is fixed to one side wall of the sliding block, and a pressing block is fixed to one end of the spring. Through the arrangement of the base, the notched vertical plate, the clamping assembly, the U-shaped table, the driving assembly, the hydraulic cylinder, the sliding block, the spring and the pressing block, the concrete block or concrete plate strength testing device can conveniently test the strength of a concrete block or a concrete plate, and is low in overall production and manufacturing cost, low in price and suitable for sampling detection of some small concrete block manufacturers.

Description

Technical Field

[0001] This utility model relates to the field of concrete testing technology, specifically to a strength testing device for concrete. Background Technology

[0002] After the production of some concrete blocks or concrete slabs, they are usually sampled and tested to see if their strength meets the standards. Current strength testing devices for concrete blocks or concrete slabs generally use pressure sensors, displays and other structures, which have high overall production and manufacturing costs and prices. Therefore, we propose a strength testing device for concrete to solve the above problems. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this invention provides a strength testing device for concrete, which solves the problems mentioned in the background section.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0007] A concrete strength testing device includes a base, a notched vertical plate fixed to the top of the base, a clamping assembly on the notched vertical plate, a U-shaped platform fitted to the top of the base, a driving assembly for driving the U-shaped platform to move laterally on the top of the base, a hydraulic cylinder fixed to the top of the U-shaped platform, a slider fixed to the ejector end of the hydraulic cylinder, a spring fixed to one side wall of the slider, a pressure block fixed to one end of the spring, one side wall of the pressure block being flush with one side wall of the U-shaped platform, a scale line on the top of the U-shaped platform, and the initial position of the slider being set at the zero scale line.

[0008] Furthermore, the clamping assembly includes a U-shaped plate fixed to one side wall of the notched upright plate. The bottom of the U-shaped plate is fixedly connected to the top of the base. A bidirectional screw is rotatably connected inside the U-shaped plate via a bearing. A first throttle is fixed to one end of the bidirectional screw. Two connecting plates are symmetrically threaded onto the surface of the bidirectional screw. Two strip-shaped openings adapted to the connecting plates are symmetrically opened on the surface of the notched upright plate. The connecting plates slide through the corresponding strip-shaped openings and are fixedly connected to clamping plates.

[0009] Furthermore, a guide rod is fixed inside the U-shaped plate, and both connecting plates are slidably connected to the surface of the guide rod.

[0010] Furthermore, the drive assembly includes a fixing plate fixed to the top of the base, a one-way screw threaded to the middle of the fixing plate, a second throttle fixed to one end of the one-way screw, and the other end of the one-way screw rotatably connected to one side wall of the U-shaped platform via a bearing.

[0011] Furthermore, T-shaped sliding rods are slidably passed through the four corners of the fixed plate, and one end of each of the four T-shaped sliding rods is fixedly connected to one side wall of the U-shaped platform.

[0012] Furthermore, mounting holes are provided at all four corners of the base, and a telescopic sleeve is provided inside the spring. The two ends of the telescopic sleeve are fixedly connected to one side wall of the slider and one side wall of the pressure block, respectively.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, the present invention provides a strength testing device for concrete, which has the following advantages:

[0015] This invention, by setting up a base, notched upright plate, clamping assembly, U-shaped platform, driving assembly, hydraulic cylinder, slider, spring and pressure block, can conveniently perform strength testing on concrete blocks or concrete slabs, and the overall production and manufacturing cost is low, making it suitable for sampling and testing by some small concrete block manufacturers. Attached Figure Description

[0016] Figure 1 This is a first-person view structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the overall second-view structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the notched vertical plate structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the connecting plate structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the present invention when the pressure block is in contact with the surface of the concrete slab to be tested.

[0021] In the diagram: 1. Base; 2. Notched upright plate; 3. Clamping assembly; 301. U-shaped plate; 302. Bidirectional screw; 303. First throttle; 304. Connecting plate; 305. Clamping plate; 306. Guide rod; 4. U-shaped platform; 5. Drive assembly; 501. Fixing plate; 502. One-way screw; 503. Second throttle; 504. T-shaped slide bar; 6. Hydraulic cylinder; 7. Slider; 8. Spring; 9. Pressure block; 10. Strip-shaped opening. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example

[0024] like Figure 1-5 As shown, an embodiment of this utility model discloses a concrete strength testing device, including a base 1, a notched vertical plate 2 fixed to the top of the base 1, a clamping assembly 3 provided on the notched vertical plate 2, a U-shaped platform 4 attached to the top of the base 1, a driving assembly 5 for driving the U-shaped platform 4 to move laterally provided on the top of the base 1, a hydraulic cylinder 6 fixed to the top of the U-shaped platform 4, a slider 7 fixed to the top end of the hydraulic cylinder 6, a spring 8 fixed to one side wall of the slider 7, a pressure block 9 fixed to one end of the spring 8, one side wall of the pressure block 9 being flush with one side wall of the U-shaped platform 4, a scale line opened on the top of the U-shaped platform 4, and the initial position of the slider 7 being set at the zero scale line position.

[0025] When sampling strength tests are required on concrete blocks or slabs after production, a randomly selected concrete block or slab is placed on the base 1 and pressed against the surface of the notched upright plate 2. The clamping assembly 3 then clamps and fixes the concrete block to be tested. Next, the drive assembly 5 drives the U-shaped platform 4 to move towards the surface of the concrete block until the left end face of the U-shaped platform 4 is in contact with the surface of the concrete block. Because the left side wall of the pressure block 9 is flush with the left end face of the U-shaped platform 4, the left side wall of the pressure block 9 will also be in contact with the surface of the concrete block at this time. It should be noted that at this time, the U-shaped platform 4 and the pressure block 9 do not apply force to the surface of the concrete block; they are simply in contact with the surface. Then, the ejector end of the hydraulic cylinder 6 is extended, which will drive the slider 7 to move to the left. Because the pressure block 9 is in contact with the surface of the concrete block, the slider 7 moves to the left. Moving the slider 7 to the left compresses spring 8. The distance the slider 7 moves is the deformation of spring 8, which can be determined from the scale lines on the U-shaped platform 4. It should be further noted that when slider 7 is at the zero mark, spring 8 is in its normal state, without deformation, and its elastic coefficient is known. Based on the deformation and elastic coefficient of spring 8, the force exerted by the pressure block 9 on the concrete block can be calculated. Since the left side wall area of ​​pressure block 9 is known, according to the pressure formula, the force F divided by the area S is the pressure the concrete block can withstand. If the concrete block does not break within the specified pressure range, it is considered a qualified product; if it breaks within the specified pressure range, it is considered a defective product. The entire testing device has a simple structure, low manufacturing cost, and low price, making it suitable for the purchasing needs of small concrete block manufacturers.

[0026] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, in some embodiments, the clamping assembly 3 includes a U-shaped plate 301 fixed to one side wall of the notched upright plate 2. The bottom of the U-shaped plate 301 is fixedly connected to the top of the base 1. A bidirectional screw 302 is rotatably connected inside the U-shaped plate 301 via a bearing. A first handle 303 is fixed to one end of the bidirectional screw 302. Two connecting plates 304 are symmetrically threaded onto the surface of the bidirectional screw 302. Two strip-shaped openings 10 adapted to the connecting plates 304 are symmetrically opened on the surface of the notched upright plate 2. The connecting plates 304 slide through the corresponding strips. The U-shaped opening 10 is fixedly connected to a clamping plate 305. A guide rod 306 is fixed inside the U-shaped plate 301. Two connecting plates 304 are slidably connected to the surface of the guide rod 306. When it is necessary to fix the concrete block to be tested, the first handle 303 can be rotated. The first handle 303 can drive the bidirectional screw 302 to rotate. The bidirectional screw 302 can drive the two connecting plates 304 to move towards the middle. The connecting plates 304 can drive the corresponding clamping plates 305 to move towards the middle, thereby clamping and fixing the concrete block to be tested.

[0027] like Figure 1 and Figure 5 As shown, in some embodiments, the drive assembly 5 includes a fixing plate 501 fixed to the top of the base 1. A one-way screw 502 is threadedly connected to the middle of the fixing plate 501. A second handle 503 is fixed to one end of the one-way screw 502. The other end of the one-way screw 502 is rotatably connected to one side wall of the U-shaped platform 4 through a bearing. T-shaped slide rods 504 slide through each of the four corners of the fixing plate 501. One end of each of the four T-shaped slide rods 504 is fixedly connected to one side wall of the U-shaped platform 4. When it is necessary to drive the U-shaped platform 4 to fit against the surface of the concrete block to be tested, the second handle 503 can be rotated. The second handle 503 can drive the one-way screw 502 to rotate to the left, thereby driving the U-shaped platform 4 to move towards the concrete block to be tested.

[0028] like Figure 1 , Figure 2 and Figure 4 As shown, in some embodiments, mounting holes are provided at all four corners of the base 1 to facilitate fixing it to the desired position using screws or bolts. The spring 8 is provided with a telescopic sleeve inside, and the two ends of the telescopic sleeve are fixedly connected to one side wall of the slider 7 and one side wall of the pressure block 9, respectively, in order to maintain the stability of the pressure block 9.

[0029] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A strength testing device for concrete, comprising a base (1), characterized in that: The top of the base (1) is fixed with a notched upright plate (2), and a clamping assembly (3) is provided on the notched upright plate (2). A U-shaped platform (4) is attached to the top of the base (1). A driving assembly (5) for driving the U-shaped platform (4) to move laterally is provided on the top of the base (1). A hydraulic cylinder (6) is fixed to the top of the U-shaped platform (4). A slider (7) is fixed to the ejector end of the hydraulic cylinder (6). A spring (8) is fixed to one side wall of the slider (7). A pressure block (9) is fixed to one end of the spring (8). One side wall of the pressure block (9) is flush with one side wall of the U-shaped platform (4). A scale line is opened on the top of the U-shaped platform (4). The initial position of the slider (7) is set at the zero scale line position.

2. The concrete strength testing device according to claim 1, characterized in that: The clamping assembly (3) includes a U-shaped plate (301) fixed to one side wall of the notched upright plate (2). The bottom of the U-shaped plate (301) is fixedly connected to the top of the base (1). A bidirectional screw (302) is rotatably connected inside the U-shaped plate (301) through a bearing. A first throttle (303) is fixed to one end of the bidirectional screw (302). Two connecting plates (304) are symmetrically threaded on the surface of the bidirectional screw (302). Two strip-shaped openings (10) adapted to the connecting plates (304) are symmetrically opened on the surface of the notched upright plate (2). The connecting plates (304) slide through the corresponding strip-shaped openings (10) and are fixedly connected to clamping plates (305).

3. The concrete strength testing device according to claim 2, characterized in that: The U-shaped plate (301) has a guide rod (306) fixed inside, and the two connecting plates (304) are slidably connected to the surface of the guide rod (306).

4. The concrete strength testing device according to claim 1, characterized in that: The drive assembly (5) includes a fixing plate (501) fixed to the top of the base (1). A one-way screw (502) is threadedly connected to the middle of the fixing plate (501). A second throttle (503) is fixed to one end of the one-way screw (502). The other end of the one-way screw (502) is rotatably connected to one side wall of the U-shaped platform (4) through a bearing.

5. A strength testing device for concrete according to claim 4, characterized in that: The four corners of the fixed plate (501) are slidably connected to T-shaped slide rods (504), and one end of each of the four T-shaped slide rods (504) is fixedly connected to one side wall of the U-shaped platform (4).

6. The concrete strength testing device according to claim 1, characterized in that: The base (1) has mounting holes at all four corners. The spring (8) has a telescopic sleeve inside. The two ends of the telescopic sleeve are fixedly connected to one side wall of the slider (7) and one side wall of the pressure block (9), respectively.

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