A coagulation strength detection device

Abstract

The utility model discloses a kind of concrete strength detection equipment, including jack, adjusting mechanism is arranged on the jack, the adjusting mechanism includes limiting ring, intermediate rod, chassis and top disc, the limiting ring is provided with two, and two the limiting ring is respectively mounted on the lateral wall of jack, intermediate rod is slidably installed on each The extending end of jack is connected on chassis, the chassis is slidably connected on two The intermediate rod, top disc is fixedly installed on two The intermediate rod, this innovative concrete strength detection equipment is designed by precise lever adjusting mechanism, effectively solve the technical problem that traditional detection equipment pressurization speed regulation is not accurate, operation is complicated, provide a kind of high-precision, strong reliability and convenient operation concrete strength test solution for construction engineering quality detection field.

Description

Technical Field

[0001] This utility model relates to the technical field of concrete strength testing equipment, and more specifically, it relates to a concrete strength testing equipment. Background Technology

[0002] Most common concrete strength testing equipment on the market currently uses traditional hydraulic jacks as the core pressurization device, relying primarily on manual or electric hydraulic pumps to provide pressure. While this pressurization method is simple in structure and low in cost, it has significant adjustment limitations in practical applications. Because the jack's pressure output typically operates at a fixed rate, operators find it difficult to flexibly adjust the pressurization speed according to different concrete specimen strength grades. For example, high-strength concrete specimens require a slow and stable pressurization process to avoid stress concentration, while ordinary concrete specimens can be tested at a faster speed to improve efficiency. However, existing equipment lacks a precise pressure control mechanism, resulting in a pressurization process that is either too fast (potentially causing instantaneous damage to the specimen and affecting data accuracy) or too slow (reducing testing efficiency). Furthermore, manual jacks are also affected by the operator's stability in applying force, further increasing the volatility of the test results.

[0003] Another major problem with existing equipment is the poor ease of human-machine interaction. In traditional testing processes, operators must manually record pressure gauge readings and quickly stop pressurizing when the specimen fails. This process requires a high level of operator experience and is prone to data errors due to human delays. Furthermore, the equipment typically lacks an intelligent pressure feedback system, making it impossible to dynamically adjust the pressurization rate in real time to adapt to the deformation characteristics of the specimen. For example, ideally, when a concrete specimen is nearing failure, the pressurization rate should automatically decrease to accurately capture the ultimate load value, but current technology struggles to achieve this. In addition, while some electro-hydraulic equipment can provide a constant pressurization rate, its adjustment range is limited, and switching speeds requires cumbersome mechanical adjustments (such as replacing oil valves or adjusting pump frequency), failing to meet the needs of rapid on-site testing. This technological shortcoming not only reduces testing efficiency but may also affect the accuracy of engineering quality assessment, especially in construction sites or laboratory environments requiring large-scale testing. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the problems existing in the prior art, this utility model provides a concrete strength testing device to solve the technical problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a concrete strength testing device, comprising a jack, an adjustment mechanism on the jack, the adjustment mechanism comprising a limiting ring, a middle rod, a base plate, and a top plate, wherein two limiting rings are provided, and the two limiting rings are respectively installed on the side wall of the jack, a middle rod is slidably installed on each limiting ring, the extended end of the jack is connected to the base plate, the base plate is slidably connected to the two middle rods, the top plate is fixedly installed on the two middle rods, a pull rod is rotatably provided on the jack, a telescopic rod is rotatably provided at the other end of the pull rod, a fixed sleeve is sleeved on the telescopic rod, and a rocker arm is provided at the other end of the fixed sleeve, the rocker arm being connected to the jack.

[0008] The present invention is further configured such that a push plate is provided at the lower end of the intermediate rod, a spring is provided on the push plate, and the other end of the spring abuts against the limiting ring.

[0009] The present invention is further configured such that each of the push plates is provided with a scale rod, the limiting ring is provided with a measuring sleeve, and the scale rod is slidably connected inside the measuring sleeve.

[0010] The present invention is further configured such that a plurality of side holes are equally spaced on the side wall of the fixed sleeve, and a top rod is slidably disposed in each of the side holes.

[0011] The present invention is further configured such that an elastic strip is provided between every two top rods, and multiple elastic strips respectively abut against the side wall of the telescopic rod.

[0012] The present invention is further configured such that a pressure sleeve is slidably provided on the fixed sleeve, and a plurality of the push rods respectively abut against the pressure sleeve.

[0013] The present invention is further configured such that a follower disk is coaxially provided on the pressure sleeve, and the follower disk is located at the upper end of the pressure sleeve.

[0014] The present invention is further configured such that a threaded sleeve is provided on the outer wall of the pressure sleeve.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a concrete strength testing device, which has the following beneficial effects:

[0017] This innovative concrete strength testing equipment, through its precise lever-type adjustment mechanism, effectively solves the technical problems of inaccurate pressure adjustment and cumbersome operation in traditional testing equipment. It provides a high-precision, reliable, and easy-to-use concrete strength testing solution for the field of construction engineering quality testing. The core innovation of this equipment lies in its unique adjustable lever transmission system. Users can precisely adjust the pressure stroke and force with a simple sliding operation, enabling accurate testing of concrete specimens of different strength grades. It also features a real-time force value display function, significantly improving the accuracy and reliability of the test data. Its working principle involves designing a variable lever ratio transmission device based on a traditional jack. The operator can change the pressure stroke and force of a single operation by adjusting the effective length of the transmission arm, thereby achieving precise control of different pressure rates. Simultaneously, the equipment is equipped with an elastic buffer system and a precision force measurement mechanism to ensure a smooth pressure process and real-time monitoring of force changes.

[0018] This design improves the quality and efficiency of concrete strength testing from multiple dimensions. From the perspective of pressurization accuracy, traditional testing equipment often relies on the operator's experience and intuition to control the pressurization rate, making it difficult to guarantee stable and consistent pressurization conditions. This innovative design, however, mechanizes and quantifies the pressurization process through an adjustable lever mechanism. The displacement and pressure increments generated in each operation can be precisely set in advance, ensuring that the pressurization process meets standard specifications and significantly improving the accuracy and repeatability of the test data. Especially for high-precision testing tasks requiring strict control of the pressurization rate, this mechanically quantitative pressurization method effectively avoids human interference, providing more objective and reliable test results. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a concrete strength testing device according to the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the fixing sleeve and the telescopic rod in this utility model;

[0021] Figure 3 In this utility model Figure 2 A schematic diagram of the cross-sectional structure;

[0022] Figure 4 This is a cross-sectional view of the fixing sleeve in this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the pressure sleeve in this utility model.

[0024] In the diagram: 1. Jack; 2. Limiting ring; 3. Intermediate rod; 4. Base plate; 5. Top plate; 6. Pull rod; 7. Telescopic rod; 8. Fixing sleeve; 9. Rocker arm; 10. Push plate; 11. Spring; 12. Scale rod; 13. Measuring sleeve; 14. Side hole; 15. Push rod; 16. Elastic strip; 17. Pressure sleeve; 18. Follower plate; 19. Threaded sleeve. Detailed Implementation

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0027] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0028] Please see Figure 1-5 A concrete strength testing device includes a jack 1 with an adjustment mechanism. The adjustment mechanism includes two limit rings 2, intermediate rods 3, a base 4, and a top plate 5. Two limit rings 2 are installed on the side walls of the jack 1. An intermediate rod 3 is slidably installed on each limit ring 2. The extended end of the jack 1 is connected to the base 4, which is slidably connected to the two intermediate rods 3. The top plate 5 is fixedly installed on the two intermediate rods 3. A pull rod 6 is rotatably mounted on the jack 1, and a telescopic rod 7 is rotatably mounted on the other end of the pull rod 6. A fixed sleeve 8 is sleeved on the telescopic rod 7, and a rocker arm 9 is mounted on the other end of the fixed sleeve 8. The rocker arm 9 is connected to the jack 1. A push plate 1 is located at the lower end of the intermediate rod 3. 0. A spring 11 is provided on the push plate 10, and the other end of the spring 11 abuts against the limiting ring 2. Each push plate 10 is provided with a scale rod 12, and the limiting ring 2 is provided with a measuring sleeve 13. The scale rod 12 is slidably connected in the measuring sleeve 13. Multiple side holes 14 are equally spaced on the side wall of the fixed sleeve 8. A push rod 15 is slidably provided in each side hole 14. An elastic strip 16 is provided between every two push rods 15. Multiple elastic strips 16 abut against the side wall of the telescopic rod 7. A pressure sleeve 17 is slidably provided on the fixed sleeve 8. Multiple push rods 15 abut against the pressure sleeve 17. A follower plate 18 is coaxially provided on the pressure sleeve 17, and the follower plate 18 is located at the upper end of the pressure sleeve 17. A threaded sleeve 19 is provided on the outer wall of the pressure sleeve 17.

[0029] In this embodiment, when testing the concrete strength, the concrete block is first placed on the base plate 4, and then the jack 1 is moved upward by the rocker arm 9. This will simultaneously push the concrete on the base plate 4 against the base plate 4. As force is continuously applied, the spring 11 at the lower end will apply elastic force, and as the middle rod 3 moves upward, the scale rod 12 will also move upward. The pressure applied can be seen through the measuring sleeve 13, thus completing the concrete block testing process.

[0030] More specifically, since a lever arm is formed between the rocker arm 9, the pull rod 6, and the jack 1, the stroke of the jack 1 can be changed by altering the distance between the fixed sleeve 8 and the telescopic rod 7, thereby adjusting the corresponding extension speed and force. When the distance needs to be adjusted, the follower ring is pulled so that the pressure sleeve 17 no longer presses against the multiple push rods 15. At this time, the elastic strip 16 does not contact the telescopic rod 7, so its position can be changed. After the adjustment is completed, the pressure sleeve 17 is pressed against the multiple push rods 15 again, so that the elastic strip 16 contacts the telescopic rod 7, ensuring the limit of the telescopic rod 7 and the fixed sleeve 8, thus completing the adjustment process. When continuous fixation is required, the threaded sleeve 19 is threaded onto the fixed sleeve 8, allowing for long-term fixation.

[0031] In summary, when using or operating the equipment: First, place the concrete block on the base plate 4. Then, move the jack 1 upwards using the rocker arm 9. This will simultaneously push the concrete block against the base plate 4. As force is applied, the lower spring 11 will exert elastic force, and as the middle rod 3 moves upwards, the scale rod 12 will also move upwards. The applied pressure can be seen through the measuring sleeve 13, thus completing the concrete block testing process.

[0032] Since a lever arm is formed between the rocker arm 9, the pull rod 6, and the jack 1, the stroke of the jack 1 can be changed by altering the distance between the fixed sleeve 8 and the telescopic rod 7, thereby adjusting the corresponding extension speed and force. When the distance needs to be adjusted, the follower ring is pulled so that the pressure sleeve 17 no longer presses against the multiple push rods 15. At this time, the elastic strip 16 does not contact the telescopic rod 7, so its position can be changed. After the adjustment is completed, the pressure sleeve 17 is pressed against the multiple push rods 15 again, so that the elastic strip 16 contacts the telescopic rod 7, ensuring the limit of the telescopic rod 7 and the fixed sleeve 8, thus completing the adjustment process. When continuous fixation is required, the threaded sleeve 19 is threaded onto the fixed sleeve 8, which allows for long-term fixation.

[0033] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A concrete strength testing device, comprising a jack (1), characterized in that: The jack (1) is provided with an adjustment mechanism, which includes a limiting ring (2), a middle rod (3), a base plate (4) and a top plate (5). There are two limiting rings (2), and the two limiting rings (2) are respectively installed on the side wall of the jack (1). A middle rod (3) is slidably installed on each limiting ring (2). The extended end of the jack (1) is connected to the base plate (4). The base plate (4) is slidably connected to the two middle rods (3). The top plate (5) is fixedly installed on the two middle rods (3). A pull rod (6) is rotatably provided on the jack (1). A telescopic rod (7) is rotatably provided on the other end of the pull rod (6). A fixed sleeve (8) is sleeved on the telescopic rod (7). A rocker arm (9) is provided on the other end of the fixed sleeve (8). The rocker arm (9) is connected to the jack (1).

2. The concrete strength testing device according to claim 1, characterized in that: The lower end of the intermediate rod (3) is provided with a push plate (10), and the push plate (10) is provided with a spring (11). The other end of the spring (11) abuts against the limiting ring (2).

3. The concrete strength testing device according to claim 2, characterized in that: Each of the push plates (10) is provided with a scale rod (12), and the limiting ring (2) is provided with a measuring sleeve (13). The scale rod (12) is slidably connected inside the measuring sleeve (13).

4. The concrete strength testing device according to claim 3, characterized in that: The fixed sleeve (8) has multiple side holes (14) at equal intervals on its side wall, and a top rod (15) is slidably provided in each side hole (14).

5. The concrete strength testing device according to claim 4, characterized in that: An elastic strip (16) is provided between each pair of the top rods (15), and multiple elastic strips (16) respectively abut against the side wall of the telescopic rod (7).

6. The concrete strength testing device according to claim 5, characterized in that: A pressure sleeve (17) is slidably provided on the fixed sleeve (8), and multiple push rods (15) respectively abut against the pressure sleeve (17).

7. The concrete strength testing device according to claim 6, characterized in that: The pressure sleeve (17) is coaxially provided with a follower disk (18), and the follower disk (18) is located at the upper end of the pressure sleeve (17).

8. The concrete strength testing device according to claim 7, characterized in that: The outer wall of the pressure sleeve (17) is provided with a threaded sleeve (19).

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