Concrete electronic digital display penetration resistance instrument

Abstract

The utility model belongs to concrete penetration resistance instrument technical field discloses a kind of concrete electronic digital display concrete penetration resistance instrument, including base, penetration needle and support assembly;Base is used to carry mortar sample barrel;Penetration needle is used to insert mortar sample barrel inside to detect;Support assembly includes support plate, fixed base, fixed link, mounting seat, elastic member and plug-in rod, the support plate is located the top of the base, the fixed base is connected in the top of the base, the fixed link is connected in the bottom end of the support plate, the mounting seat is connected in the top end of the base;By detachably mounting the top of base in support plate, so that the concrete inside mortar sample barrel falls on the surface of support plate, the support plate of surface pollution can be disassembled, then replace new support plate or clean old support plate, to ensure the cleanliness of instrument and the accuracy of measurement.

Description

Technical Field

[0001] This utility model belongs to the technical field of concrete penetration resistance meter, and particularly relates to an electronic digital display concrete penetration resistance meter. Background Technology

[0002] Concrete penetration resistance refers to the resistance exhibited by a concrete mixture under pressure during the concrete setting process, as measured by a penetration resistance meter. Specifically, the resistance encountered when a probe penetrates the concrete mixture at a certain speed is the penetration resistance.

[0003] When using a concrete penetration resistance meter, the mortar sample bucket is usually placed directly on the base, and then the test is performed on the concrete inside the mortar sample bucket.

[0004] Because concrete may fall from the mortar sample bucket during the testing process, long-term accumulation can easily lead to excessive concrete residue on the base. This not only makes the base surface uneven, reducing stability when placing the sample bucket, but may also affect the accuracy of the measurement results due to uneven contact between the uneven base surface and the bottom of the sample bucket. Utility Model Content

[0005] This invention addresses the problem in existing technologies where concrete may fall from the mortar sample container during testing, leading to excessive concrete residue on the base over time. This not only causes unevenness on the base surface, reducing stability when placing the sample container, but also potentially affects the accuracy of measurement results due to uneven contact between the uneven base surface and the bottom of the sample container. The following technical solution is proposed:

[0006] A concrete electronic digital display concrete penetration resistance meter, comprising:

[0007] The base is used to support the mortar sample bucket.

[0008] A penetration needle is used to insert into the inside of a mortar sample container for testing.

[0009] The support assembly includes a support plate, a fixed base, a fixed rod, a mounting base, an elastic element, and a plug rod. The support plate is located directly above the base. The fixed base is connected to the top of the base. The fixed rod is connected to the bottom end of the support plate. The mounting base is connected to the top end of the base. The elastic element is located inside the mounting base. The plug rod is connected to the elastic element.

[0010] As a preferred embodiment of the above technical solution, the fixing rod is hexagonal in shape and is inserted into the interior of the fixing seat.

[0011] As a preferred embodiment of the above technical solution, the number of mounting seats is symmetrically arranged in two sets, and two insert rods are symmetrically slidably installed inside each set of mounting seats. Push rods are connected to the outer surfaces of the four sets of insert rods.

[0012] As a preferred embodiment of the above technical solution, the insertion rod passes through the housing of the fixing seat and is inserted into the interior of the fixing rod.

[0013] As a preferred embodiment of the above technical solution, a retraction and extension component is also included, the retraction and extension component comprising:

[0014] The driving component is connected to the bottom end of the inner wall of the base;

[0015] A transmission rod is connected to the driving component, and the driving component is used to drive the transmission rod to rotate;

[0016] A movable plate and a support column are provided. The movable plate is located inside the base, and the support column is connected to the movable plate. The movable plate is used to push the support column to move.

[0017] As a preferred embodiment of the above technical solution, the bottom end of the support column is connected to a roller, the bottom end of the base is equipped with a support leg, and the roller is set at a height higher than the horizontal height of the support leg.

[0018] The beneficial effects of this utility model are as follows:

[0019] (1) The present invention, through the support component, can detachably install the support plate directly above the base, so that the concrete inside the mortar sample bucket falls onto the surface of the support plate, and the support plate with surface contamination can be disassembled, and then a new support plate can be replaced or the old support plate can be cleaned, thereby ensuring the cleanliness of the instrument and the accuracy of the measurement.

[0020] (2) The present invention can move the rollers closer to the ground by setting the retractable component, thereby lifting the support leg and making the support leg off the ground, so that the staff can push and transfer the device directly, avoiding the tediousness and labor of manual handling. Attached Figure Description

[0021] Figure 1 The diagram shown is a schematic of the overall structure of an electronic digital display concrete penetration resistance meter.

[0022] Figure 2 The diagram shown is a structural schematic of the support component;

[0023] Figure 3 The diagram shown is a structural schematic of the internal storage and stowage components of the base;

[0024] Figure 4 The diagram shows a cross-sectional view of the internal structure of the mounting base.

[0025] In the diagram: 1. Base; 2. Penetration needle; 3. Mortar sample bucket; 4. Support plate; 5. Fixing seat; 6. Fixing rod; 7. Mounting seat; 8. Elastic element; 9. Insert rod; 10. Push rod; 11. Driving element; 12. Transmission rod; 13. Moving plate; 14. Support column; 15. Roller; 16. Support leg. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0027] Example 1

[0028] This utility model provides a concrete electronic digital display concrete penetration resistance meter, such as... Figures 1 to 4 As shown, the electronic digital display concrete penetration resistance meter includes a base 1, a penetration needle 2, and a support assembly. The base 1 supports a mortar sample container 3, and the penetration needle 2 is inserted into the mortar sample container 3 for testing. The support assembly includes a support plate 4, a fixing seat 5, a fixing rod 6, a mounting seat 7, an elastic element 8, and an insertion rod 9. The support plate 4 is located directly above the base 1, the fixing seat 5 is fixedly installed at the top of the base 1, and the fixing rod 6 is fixedly installed at the bottom of the support plate 4. The number and installation position of the fixing seats 5 and the fixing rod 6 are correspondingly set. The shape is set as hexagonal, and the interior of the fixing seat 5 is provided with a corresponding hexagonal slot. The fixing rod 6 can fit against the inner wall of the fixing seat 5 and be inserted into the hexagonal slot. Two sets of mounting seats 7 are symmetrically fixedly installed on the top of the base 1. Each set of mounting seats 7 is symmetrically provided with elastic elements 8 inside. The ends of the two elastic elements 8 are fixedly connected with insertion rods 9, and the insertion rods 9 can slide back and forth against the inner wall of the end of the mounting seat 7. When the support plate 4 is installed at the top of the base 1, the insertion rods 9 can pass through the housing part of the fixing seat 5 and be inserted into the interior of the fixing rod 6.

[0029] In this embodiment, the electronic digital display concrete penetration resistance meter also includes a digital display, a pressure rod, etc. When in use, the device is connected to a power source, and the "Power" button on the digital display panel is pressed. The digital display window will then show a number. After 10 minutes of power-on, the displayed value will automatically approach "0". Then, a suitable penetration needle is selected, with a 2,350N needle corresponding to the initial setting penetration resistance (i.e., 2-3.5MPa). At this time, a 100mm diameter needle is used. 2 Insertion needle 2); 1000N corresponds to intermediate insertion resistance (i.e., 3.5-20MPa, at which point a 50mm needle is used). 2 Penetration needle 2); 560N corresponds to the final solidification penetration resistance (i.e., 20-28MPa, at which point a 20mm needle is used). 2Penetration needle 2), mortar sample bucket 3 is filled with the concrete sample to be tested, smoothed and placed on base 1, and the penetration depth of penetration needle 2 is adjusted to 25mm; during initial setting, use 100mm 2 When the needle is inserted and final coagulation occurs, use a 20mm needle. 2 Insert needle 2;

[0030] During testing: First, press the zeroing button on the digital display panel to clear the initial value of the sensor, i.e., zero it; then press the test button to enter the working test state. At the same time, the first light (test light) on the digital display panel will light up. Hold the handle and rotate it downwards so that the penetration needle 2 contacts the sample and penetrates to the deepest position (25mm) in about 10 seconds. At this time, the digital display will show a peak value, and the second light (peak light) on the digital display panel will light up. Read the displayed value of the digital display, record it, and one test is completed.

[0031] Before conducting the second test, press the zeroing key on the digital display panel to reset the digital display to zero, and then press the test key again to enter the second test. The standard stipulates that the distance between the two test points shall not be less than 20mm, so the mortar sample bucket 3 must be moved and the penetration point of the penetration needle 2 must be changed.

[0032] The fourth light is the alarm light. When the force exceeds 1030N (i.e. 3% of the full scale), the fourth light will light up, which is an alarm. At this time, special care should be taken not to apply any more pressure, otherwise the sensor will be damaged and the instrument will not work properly.

[0033] After the test, turn off the power, clean the instrument, and fill in the instrument usage record. The above operating procedures and components such as alarm lights are all technologies that have been disclosed in existing products, and will not be described in detail here.

[0034] By placing the mortar sample bucket 3 on the support plate 4, and then starting the device to perform a penetration test with the penetration needle 2, the concrete on the mortar sample bucket 3 can fall directly onto the surface of the support plate 4, avoiding excessive concrete accumulation on the base 1 and affecting the test results.

[0035] During use, the operator places the mortar sample bucket 3 containing concrete on the support plate 4, and then performs a penetration test on the concrete in the mortar sample bucket 3 according to the operating steps described above. When too much concrete falls onto the support plate 4, causing its surface to become uneven, the push rod 10 can be pulled to bring the two insert rods 9 inside the mounting base 7 closer together. Then, the ends of the insert rods 9 can be pulled out from inside the fixing base 5 and the fixing rod 6. The dirty support plate 4 can then be removed, and a new support plate 4 can be replaced on the base 1. The old support plate 4 is then cleaned to ensure that the mortar sample bucket 3 for subsequent testing can be placed on the flat surface of the support plate 4, thereby avoiding test errors caused by the unevenness of the support plate 4.

[0036] To facilitate the handling of the entire device, such as Figures 1 to 4 As shown, the retraction and deployment assembly of the electronic digital display concrete penetration resistance meter includes a drive component 11, a transmission rod 12, a moving plate 13, support columns 14, and rollers 15. The drive component 11 is specifically a drive motor and is fixedly installed on the bottom of the inner wall of the base 1. The transmission rod 12 is a lead screw and is connected to the output shaft of the drive component 11 via a flat key. The outer surface of the transmission rod 12 is threadedly connected to the moving plate 13. The moving plate 13 is set to fit against the inner wall of the base 1, so that the moving plate 13 can only slide back and forth in the vertical direction along the inner wall of the base 1. Four sets of support columns 14 are fixedly connected to the bottom of the moving plate 13. All four sets of support columns 14 are slidably installed inside the base 1, and the bottom of each of the four sets of support columns 14 is connected to a roller 15.

[0037] The base 1 is also equipped with a support leg 16 at its bottom. During testing, the roller 15 is positioned at a height higher than the support leg 16. When the resistance meter needs to be moved, the drive unit 11 inside the base 1 is energized, which drives the transmission rod 12 to rotate. When the transmission rod 12 rotates, it drives the moving plate 13 to move downwards in the vertical direction through the threaded connection. Then, the moving plate 13 drives the support column 14 to move downwards, and the roller 15 gradually contacts the ground and is at the same height as the support leg 16. As the drive unit 11 continues to work, the roller 15 moves downwards again and lifts the entire equipment base 1, causing the support leg 16 to leave the ground. This allows the equipment to be moved, avoiding the need for workers to lift the entire equipment directly, thus reducing labor costs and time waste.

[0038] Working principle: In actual use, the operator places the mortar sample bucket 3 on the support plate 4 according to the existing operating procedures, and then inserts the penetration needle 2 into the mortar sample bucket 3 for penetration. When concrete falls on the support plate 4, causing its surface to be uneven, the user can then move the push rod 10 to bring the two insert rods 9 inside the mounting base 7 closer together, and compress and deform the elastic element 8 inside the mounting base 7. When the end of the insert rod 9 is pulled out from the fixed base 5 and the fixed rod 6, the old support plate 4 can be disassembled and replaced. Then the new support plate 4 can be replaced on the base 1, the old support plate 4 is cleaned, and after the new support plate 4 is placed directly above the base 1, the push rod 10 is released to release the elastic potential energy of the compressed elastic element 8, and then the two insert rods 9 inside the mounting base 7 are inserted again into the new fixed rod 6 and the fixed base 5 to complete the installation of the support plate 4. This ensures that the mortar sample bucket 3 for subsequent testing can be placed on the flat surface of the support plate 4, thereby avoiding test errors caused by the unevenness of the support plate 4.

[0039] When the entire device needs to be moved, the drive unit 11 inside the base 1 is energized to drive the transmission rod 12 to rotate. When the transmission rod 12 rotates, it drives the moving plate 13 to slide downwards in the vertical direction through the threaded connection. This causes the support column 14 to push the roller 15 downwards, bringing the roller 15 close to the ground. As the drive unit 11 continues to operate, the roller 15 can lift the entire device and suspend it in the air, so that the support leg 16 is completely off the ground. Then, the device is pushed to roll on the ground, avoiding the need for workers to lift the entire device directly, thus reducing labor costs and time waste.

[0040] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A concrete electronic digital display concrete penetration resistance meter, characterized in that, include: The base (1) is used to support the mortar sample bucket (3); The penetration needle (2) is used to insert into the mortar sample bucket (3) for testing; The support assembly includes a support plate (4), a fixed seat (5), a fixed rod (6), a mounting seat (7), an elastic element (8), and a plug (9). The support plate (4) is located directly above the base (1). The fixed seat (5) is connected to the top of the base (1). The fixed rod (6) is connected to the bottom of the support plate (4). The mounting seat (7) is connected to the top of the base (1). The elastic element (8) is located inside the mounting seat (7). The plug (9) is connected to the elastic element (8).

2. The electronic digital display concrete penetration resistance meter according to claim 1, characterized in that, The fixing rod (6) is hexagonal in shape and is inserted into the fixing seat (5).

3. The electronic digital display concrete penetration resistance meter according to claim 1, characterized in that, The number of mounting bases (7) is symmetrically arranged in two sets. Each set of mounting bases (7) has two insert rods (9) symmetrically slidably installed inside. The outer surfaces of the four sets of insert rods (9) are all connected to push rods (10).

4. The electronic digital display concrete penetration resistance meter according to claim 1, characterized in that, The insertion rod (9) passes through the housing of the fixing seat (5) and is inserted into the interior of the fixing rod (6).

5. The electronic digital display concrete penetration resistance meter according to claim 1, characterized in that, It also includes a retractable assembly, which includes: The driving component (11) is connected to the bottom end of the inner wall of the base (1); A transmission rod (12) is connected to the driving member (11), and the driving member (11) is used to drive the transmission rod (12) to rotate; A movable plate (13) and a support column (14) are provided inside the base (1). The movable plate (13) is located inside the base (1). The support column (14) is connected to the movable plate (13). The movable plate (13) is used to push the support column (14) to move.

6. The electronic digital display concrete penetration resistance meter according to claim 5, characterized in that, The bottom end of the support column (14) is connected to a roller (15), and the bottom end of the base (1) is equipped with a support leg (16). The roller (15) is set at a height higher than the horizontal height of the support leg (16).

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