Concrete test block size detection device

Abstract

The utility model relates to the technical field of concrete detection equipment, and discloses a concrete test block size detection device which comprises a main ruler, one end of the main ruler is respectively and fixedly provided with a first outer measuring claw and a first inner measuring claw, and the main ruler below the first outer measuring claw is movably provided with a vernier. One end of the vernier is fixedly provided with a second outer measuring claw and a second inner measuring claw. The vernier below the second outer measuring claw is fixedly provided with a push block. The push block is provided with the vernier pusher, and the vernier pusher is composed of a first push-pull wheel, a second push-pull wheel, a first rotating shaft, a first guide disc, a second rotating shaft, a second guide disc, an ejector rod, a rotating ball and the like, so that the vernier can be pushed and pulled to move on the main ruler by means of the whole vernier pusher; and through cooperation of the adjusting block, the stud and the ejector rod, the abutting pressure of the rotating ball and the contact surface of the main ruler can be achieved, so that real-time limiting of the movement of the vernier is facilitated, the offset of the vernier during operation is reduced, and the accuracy of measured data is improved.

Description

Technical Field

[0001] This utility model relates to the field of concrete testing equipment technology, and in particular to a concrete test block size testing device. Background Technology

[0002] The test blocks reserved during concrete preparation are concrete specimens formed under the same batch, mix proportion, and curing conditions as the concrete prepared this time. At the same time, samples can also be taken and vibrated during the pouring construction. After standard curing or curing under the same conditions, they are sent to the testing agency for mechanical property tests such as compressive strength and flexural strength to determine whether the concrete body has reached the design strength grade.

[0003] Therefore, the dimensions, molding process, and curing environment of the test blocks are strictly regulated. The test data directly serves as an important technical indicator for project acceptance. If the length, width, and height of the test block differ significantly, the stress surface will be irregular, and stress concentration is likely to occur during the compressive strength test, causing the measured strength value to deviate from the true data. Therefore, to ensure the accuracy of the strength test results, the dimensions of the test blocks need to be calibrated before the test. In the measurement and calibration of concrete test block dimensions, vernier calipers are commonly used testing tools that can capture subtle dimensional deviations in the length, width, and height of the test blocks, meeting the specifications for test block dimension testing. However, when measuring the height of the test block, existing vernier calipers cannot limit the vernier's position in real time when it is pushed on the main scale. Therefore, most vernier calipers are equipped with fastening screws to limit and fix the vernier after adjustment. This limiting method requires the operator to operate the fastening screws with the other hand, which can easily cause the vernier's position to shift during the adjustment process, resulting in poor stability and directly affecting the accuracy of the test block dimension measurement. Utility Model Content

[0004] The purpose of this utility model is to provide a concrete test block size detection device. The device uses a pusher to drive the vernier to move smoothly on the main scale. With the help of the adjusting block, stud and top rod, the contact pressure between the rotating ball and the main scale can be flexibly adjusted to achieve real-time limit of the vernier, reduce operation deviation, improve the accuracy of test block size measurement, and meet the test block detection specifications. It can effectively solve the problems in the background technology.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A concrete test block size detection device includes a main scale. A first outer measuring jaw and a first inner measuring jaw are fixedly mounted on one end of the main scale. A vernier is movably mounted on the main scale below the first outer measuring jaw. A second outer measuring jaw and a second inner measuring jaw are fixedly mounted on one end of the vernier. A push block is also fixedly mounted on the vernier below the second outer measuring jaw. Two bearing seats are fixedly mounted on the lower end of the push block. A pusher is disposed between the two bearing seats. The pusher includes a first push-pull wheel and a second push-pull wheel. A first rotating shaft is fixedly mounted on one side of the first push-pull wheel, and a first guide plate is fixedly mounted on one side of the first rotating shaft. A second rotating shaft is fixedly mounted on one side of the second push-pull wheel relative to the first push-pull wheel, and a second guide plate is fixedly mounted on one side of the second rotating shaft. The first guide plate and the second guide plate are fixedly connected to each other, and multiple push rods are movably mounted between the first guide plate and the second guide plate. A ball bearing is movably mounted on one end of each push rod.

[0007] As a further preferred embodiment of this utility model, each of the two bearing seats is provided with a shaft hole, which provides conditions for the rotational installation of the first push-pull wheel and the second push-pull wheel.

[0008] As a further preferred embodiment of this utility model, the first rotating shaft and the second rotating shaft are rotatably installed in corresponding shaft holes, and the first push-pull wheel and the second push-pull wheel are respectively placed on one side of the corresponding shaft hole. An embedding groove is provided in the first rotating shaft, and an adjusting block is provided at the center of the inner side of the embedding groove. An adjusting block is also provided on one side of the embedding groove. A stud is fixedly installed on one side of the adjusting block and threaded into the threaded groove. The adjusting block has a conical structure near the stud, and the adjusting block is also inserted into the through hole in the middle of the second push-pull wheel. By setting the adjusting block on one side of the first guide plate and in the through hole in the second push-pull wheel through the stud, it is convenient to adjust the displacement of multiple push rods simultaneously.

[0009] As a further preferred embodiment of this utility model, the first guide plate and the second guide plate are respectively provided with a plurality of mounting grooves on opposite sides, and a through groove is provided at the top of the mounting groove.

[0010] As a further preferred embodiment of this utility model, one end of the top rod is provided with a groove, the outer surface of the rotating ball is coated with a rubber layer and is rotatably installed in the groove, the top rod is inserted between two mounting grooves, and the end of the top rod away from the rotating ball abuts against the outside of the adjusting block.

[0011] As a further preferred embodiment of this utility model, a compression spring is inserted between the end of the top rod near the rotating ball and the top of the two mounting slots. By adjusting the conical surface on the outer side of the adjusting block, and in conjunction with the top rod and the compression spring, the contact pressure of the rotating ball on one side of the main scale can be adjusted, thereby facilitating the adjustment of the sliding damping of the vernier on the main scale according to the user's operating habits.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In this invention, a pusher is provided on the push block, and the pusher consists of a first push-pull wheel, a second push-pull wheel, a first rotating shaft, a first guide plate, a second rotating shaft, a second guide plate, a top rod, a rotating ball, and other components. The entire pusher can be used to push and pull the vernier on the main scale. At the same time, the adjustment block, the stud, and the top rod can achieve the contact pressure between the rotating ball and the main scale contact surface, thereby facilitating real-time limiting of the vernier movement, reducing the offset during vernier operation, and improving the accuracy of the measurement data. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0016] Figure 3 This is a schematic diagram of the vernier structure of this utility model;

[0017] Figure 4 This is a cross-sectional view of the label pusher of this utility model;

[0018] Figure 5 This is a schematic diagram of the disassembled structure of the label pusher of this utility model;

[0019] Figure 6 for Figure 5 Enlarged view of point B in the middle.

[0020] In the diagram: 1. Main scale; 2. First external measuring jaw; 3. First internal measuring jaw; 4. Vernier; 5. Second external measuring jaw; 6. Second internal measuring jaw; 7. Push block; 8. Shaft seat; 9. Shaft hole; 10. Pusher; 11. First push-pull wheel; 12. Second push-pull wheel; 13. First rotating shaft; 14. First guide plate; 15. Second rotating shaft; 16. Second guide plate; 17. Push rod; 18. Ball bearing; 19. Embedded groove; 20. Screw groove; 21. Adjusting block; 22. Stud; 23. Mounting groove; 24. Support groove; 25. Compression spring. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] like Figures 1-6As shown, the present invention provides a concrete test block size detection device, including a main scale 1. A first outer measuring claw 2 and a first inner measuring claw 3 are fixedly installed at one end of the main scale 1. A vernier 4 is movably installed on the main scale 1 below the first outer measuring claw 2. A second outer measuring claw 5 and a second inner measuring claw 6 are fixedly installed at one end of the vernier 4. A pusher block 7 is also fixedly installed on the vernier 4 below the second outer measuring claw 5. Two bearing seats 8 are fixedly installed at the lower end of the pusher block 7. A pusher 10 is disposed between the two bearing seats 8. The pusher 10 includes a first outer measuring claw 2, a second inner measuring claw 3, and a third inner measuring claw 4. A push-pull wheel 11 and a second push-pull wheel 12 are provided. A first rotating shaft 13 is fixedly installed on one side of the first push-pull wheel 11, and a first guide plate 14 is fixedly installed on one side of the first rotating shaft 13. A second rotating shaft 15 is fixedly installed on one side of the second push-pull wheel 12 relative to the first push-pull wheel 11, and a second guide plate 16 is fixedly installed on one side of the second rotating shaft 15. The first guide plate 14 and the second guide plate 16 are fixedly connected to each other, and a plurality of push rods 17 are movably installed between the first guide plate 14 and the second guide plate 16. A ball bearing 18 is movably installed at one end of each push rod 17.

[0023] like Figure 3 As shown, each of the two bearing seats 8 has a shaft hole 9. The bearing seats 8 provide conditions for the rotational installation of the first push-pull wheel 11 and the second push-pull wheel 12.

[0024] like Figures 2-6 As shown, the first rotating shaft 13 and the second rotating shaft 15 are rotatably installed in their respective shaft holes 9. The first push-pull wheel 11 and the second push-pull wheel 12 are respectively placed on one side of their respective shaft holes 9. An embedding groove 19 is provided in the first rotating shaft 13, and an adjusting block 21 is provided at the center of the inner side of the embedding groove 19. An adjusting block 21 is also provided on one side of the embedding groove 19. A stud 22 is fixedly installed on one side of the adjusting block 21 and threaded into the threaded groove 20. The adjusting block 21 has a conical structure near the stud 22, and the adjusting block 21 is also inserted into the through hole in the middle of the second push-pull wheel 12. By setting the adjusting block 21 on one side of the first guide plate 14 and in the through hole in the second push-pull wheel 12 through the stud 22, it is convenient to simultaneously adjust the displacement of multiple push rods 17. Multiple mounting slots 23 are respectively opened on the opposite side of the first guide plate 14 and the second guide plate 16. A through groove is opened at the top of the mounting slot 23. A support groove 24 is opened at one end of the push rod 17. The outer surface of the ball bearing 18 is coated with a rubber layer and is rotatably installed in the support groove 24. The push rod 17 is inserted between the two mounting slots 23. The end of the push rod 17 away from the ball bearing 18 abuts against the outside of the adjusting block 21. A compression spring 25 is inserted between the end of the push rod 17 near the ball bearing 18 and the top of the two mounting slots 23. Through the conical surface of the adjusting block 21, and in conjunction with the push rod 17 and the compression spring 25, the contact pressure of the ball bearing 18 against the main scale 1 can be adjusted, so as to facilitate the adjustment of the sliding damping of the vernier 4 on the main scale 1 according to the user's operating habits.

[0025] It should be noted that this utility model is a concrete specimen size detection device. When detecting a concrete specimen, the main ruler 1 can be held in hand, with the thumb of the main ruler 1 touching the first push-pull wheel 11 and the second push-pull wheel 12. At the same time, the first external measuring claw 2 and the second external measuring claw 5 are inserted through the outside of the concrete specimen. Then, the first push-pull wheel 11 and the second push-pull wheel 12 can be manually moved. Thus, the first push-pull wheel 11 and the second push-pull wheel 12 respectively drive the first rotating shaft 13 and the second rotating shaft 15 on one side to rotate in the corresponding shaft hole 9. Simultaneously, the first rotating shaft 13 and the second rotating shaft 15 drive the first guide plate 14 and the second guide plate 16 to rotate between the two shaft seats 8. And the multi-axis measuring claw 14 located outside the first guide plate 14 and the second guide plate 16 rotates between the two shaft seats 8. The rotating bead 18 abuts against one side of the main scale 1, thereby enabling the sliding adjustment of the vernier 4 on the main scale 1. When it is necessary to increase the sliding damping between the rotating bead 18 and the main scale 1, the adjusting block 21 can be rotated with the help of a tool. Thus, the adjusting block 21 drives the stud 22 to rotate in the screw groove 20, thereby causing the inclined surface on the outside of the adjusting block 21 to move at one end of multiple push rods 17, thereby causing multiple push rods 17 to move synchronously in the corresponding mounting grooves 23, and causing the push rods 17 to compress the compression spring 25 towards the top of the mounting groove 23. Thus, the reverse force of the compressed spring 25 increases the contact pressure between the rotating bead 18 and one side of the main scale 1, thereby increasing the movement damping of the vernier 4. When the movement damping of the vernier 4 is reduced, the adjusting block 21 can be rotated in the opposite direction.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for detecting the size of concrete test blocks, characterized in that: Includes a main scale (1), one end of which is fixedly mounted with a first outer measuring jaw (2) and a first inner measuring jaw (3). A vernier (4) is movably mounted on the main scale (1) below the first outer measuring jaw (2). One end of the vernier (4) is fixedly mounted with a second outer measuring jaw (5) and a second inner measuring jaw (6). A pusher (7) is also fixedly mounted on the vernier (4) below the second outer measuring jaw (5). Two bearing seats (8) are fixedly mounted on the lower end of the pusher (7). A pusher (10) is provided between the two bearing seats (8). The pusher (10) includes a first push-pull wheel (11) and a second push-pull wheel (12). A first rotating shaft (13) is fixedly installed on one side of the first push-pull wheel (11). A first guide plate (14) is fixedly installed on one side of the first rotating shaft (13). A second rotating shaft (15) is fixedly installed on one side of the second push-pull wheel (12) relative to the first push-pull wheel (11). A second guide plate (16) is fixedly installed on one side of the second rotating shaft (15). The first guide plate (14) and the second guide plate (16) are fixedly connected to each other. A plurality of push rods (17) are movably installed between the first guide plate (14) and the second guide plate (16). A ball bearing (18) is movably installed at one end of each push rod (17).

2. The concrete test block size detection device according to claim 1, characterized in that: The two bearing seats (8) are respectively provided with shaft holes (9).

3. The concrete test block size detection device according to claim 2, characterized in that: The first rotating shaft (13) and the second rotating shaft (15) are respectively rotatably installed in the corresponding shaft holes (9). The first push-pull wheel (11) and the second push-pull wheel (12) are respectively placed on one side of the corresponding shaft holes (9). An embedding groove (19) is provided in the first rotating shaft (13). An adjusting block (21) is provided at the center of the inner side of the embedding groove (19). An adjusting block (21) is also provided on one side of the embedding groove (19). A stud (22) is fixedly installed on one side of the adjusting block (21) and threadedly connected in the screw groove (20). The adjusting block (21) has a conical structure near the stud (22), and the adjusting block (21) is also inserted into the through hole in the middle of the second push-pull wheel (12).

4. The concrete test block size detection device according to claim 3, characterized in that: The first guide plate (14) and the second guide plate (16) are respectively provided with multiple mounting slots (23) on opposite sides, and a through slot is provided at the top of the mounting slot (23).

5. The concrete test block size detection device according to claim 4, characterized in that: The top rod (17) has a groove (24) at one end. The outer surface of the rotating ball (18) is coated with a rubber layer and is rotatably installed in the groove (24). The top rod (17) is inserted between two mounting slots (23). The end of the top rod (17) away from the rotating ball (18) abuts against the outside of the adjusting block (21).

6. The concrete test block size detection device according to claim 5, characterized in that: A compression spring (25) is inserted between the end of the top rod (17) near the ball bearing (18) and the top of the two mounting slots (23).

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