A concrete test block curing spacing isolation device and use method thereof
By designing the test block maintenance spacing isolation device, the coordination of the isolation ball and the reset ball is used to solve the problem of chaotic placement of the test blocks, ensuring uniform spacing of the test blocks, and improving the representativeness of the test block strength.
Patent Information
- Application Number
- CN202011151319.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-10-25
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2040-10-25
AI Technical Summary
In laboratory, especially construction site laboratories, the handling and placement of test blocks is entirely manual, with high labor intensity and few staffing configurations, which often leads to the test blocks being closely fitted and placed in chaos, affecting the representativeness of the strength of the test blocks.
A concrete test block curing spacing isolation device is designed, including a curing frame, sample curing plate, longitudinal isolation strip, isolation ball and reset ball. Through the coordination of the suspended rope and reset ball, the isolation ball is ensured that the isolation ball is always after the test block is placed. Located between the test blocks, maintain appropriate spacing to avoid the test blocks being tightly fit.
The test block placement process is simplified, the chaos caused by human reasons is avoided, and the various sides of the test block are uniformly maintained by temperature and humidity, which improves the representativeness of the test block strength.
Smart Images
Figure CN112157793B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a concrete test block curing spacing isolation device and a use method thereof, and belongs to the field of concrete engineering application. Background Art
[0002] The quality of concrete entities in construction projects is assessed by the compressive strength of standard-cured concrete cube test blocks, so the standard curing conditions of concrete test blocks directly affect the representativeness of the quality of the formed concrete entities. National and industry specifications clearly stipulate that a spacing of more than 1 cm must be left between standard-cured test blocks so that each surface of each test block can receive standard temperature and humidity curing, ensuring that the strength of the test blocks increases normally and evenly. However, in many laboratories, especially construction site laboratories, test blocks are often tightly fitted and chaotically placed because the handling and placement of test blocks are entirely manual and labor-intensive. In addition, due to the large workload and small number of staff, the strength of standard-cured test blocks is not representative. Summary of the invention
[0003] The present invention provides a concrete test block curing spacing isolation device and a use method thereof, so as to solve the problem that the strength of standard curing test blocks is not representative because the test blocks are often tightly fitted and placed in a disorderly manner due to the high labor intensity in existing laboratories, especially construction site laboratories, due to the large workload and small number of personnel.
[0004] In order to achieve the above-mentioned purpose, it is proposed to adopt such a concrete test block curing spacing isolation device, including a curing frame, the curing frame includes at least two sample curing plates distributed vertically, the sample curing plates are arranged horizontally, and the upper end of the sample curing plate has two parallel longitudinal isolation strips, and between the two longitudinal isolation strips is a sample placement area where sample placement positions are arranged in sequence, and an isolation ball is suspended between two adjacent sample placement positions by a suspension rope, and the distance between the isolation ball and the sample curing plate below is less than the height of the sample, and the top of the suspension rope is fixed to the sample curing plate above.
[0005] In the aforementioned isolation device, a reset ball with a weight greater than that of the isolation ball is fixed on the suspension rope above the isolation ball, and the distance between the reset ball and the specimen curing plate below is greater than the height of the specimen. The fixing point of the top of the suspension rope is located above the two specimen placement positions and offset toward the specimen entrance. The offset distance is determined according to the actual situation. Under the condition that other conditions remain unchanged, if the weight of the reset ball is greater than that of the isolation ball, the offset distance can be smaller, and vice versa. When the specimen is placed, the previous specimen passes through the isolation ball during the placement process, and the isolation Under the action of the reset ball, the ball passes over the specimen and leaves the specimen, that is, the lateral traction force of the reset ball on the isolation ball through the hanging rope is greater than the lateral friction force of the specimen on the isolation ball when the isolation ball is above the specimen, so as to ensure that the isolation ball will not remain on the specimen. When the next specimen is put in, the isolation ball is clamped between the two specimens, and the vertical traction force of the reset ball on the isolation ball through the hanging rope is less than the sum of the friction force of the specimens on both sides of the reset ball on the isolation ball and the self-weight of the isolation ball. Therefore, after the two specimens are put in, the isolation ball can always be located between the two specimens to play an isolation role and will not slide out due to the traction of the hanging rope.
[0006] In the aforementioned isolation device, the distance between the two longitudinal isolation strips is 1-5 cm greater than the width of the test piece.
[0007] The method of using the above-mentioned isolation device is as follows: the specimens are placed in sequence from the specimen entrance direction on the specimen curing plate to the specimen placement position. During the placement of the previous specimen, the isolation ball passes through the top of the specimen and detaches from the specimen under the action of the reset ball. When the next specimen is placed, the isolation ball is clamped between the two specimens. The vertical traction force of the reset ball on the isolation ball through the suspension rope is smaller than the sum of the friction force of the specimens on both sides of the reset ball on the isolation ball and the self-weight of the isolation ball. The isolation ball can always be located between the two specimens to play an isolation role. The specimens are placed in sequence according to the above method, and the two adjacent specimens can be separated by the isolation ball.
[0008] Compared with the prior art, in the process of placing the test blocks in sequence, the isolation balls of the present invention will be automatically clamped between two adjacent test blocks and will not remain on the top of the test blocks. The use is very simple, and can avoid the disorder of test block stacking caused by human factors, facilitate personnel to place test blocks, and avoid close fit between test blocks, so that all sides of the test blocks can be evenly maintained with temperature and humidity, ensuring that the strength of the standard-cured test blocks can reflect the quality of the concrete engineering entity. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a top view of the test piece and the isolation ball after the test piece is placed on the test piece curing plate of the present invention;
[0010] Figure 2 It is a side view of the present invention (the longitudinal isolation strips and the vertical support structure of the curing frame are omitted). DETAILED DESCRIPTION
[0011] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0012] Example
[0013] Reference Figure 1 The present embodiment provides a concrete test block curing spacing isolation device, including a curing frame 1, the curing frame 1 includes at least two sample curing plates 11 distributed vertically, the sample curing plates 11 are arranged horizontally, and the upper end of the sample curing plate 11 has two parallel longitudinal isolation strips 2, the distance between the two longitudinal isolation strips 2 is greater than the width of the test piece 6 2cm, between the two longitudinal isolation strips 2 is a test piece placement area where test piece placement positions are arranged in sequence, and an isolation ball 3 is suspended between two adjacent test piece placement positions by a suspension rope 4, the distance between the isolation ball 3 and the lower sample curing plate 11 is less than the height of the test piece 6, and the top of the suspension rope 4 is fixed to the upper sample curing plate 11.
[0014] Each layer of the curing rack 1 has a clearance of 25 cm (vertical distance between adjacent sample curing plates 11); the side length of the test piece 6 is 15 cm (standard requirement); the isolation ball 3 is a hollow ball with a weight of 10 g; the reset ball 5 weighs 30 g, which is twice as heavy as the isolation ball 3; the suspension rope 4 on the upper side of the reset ball 5 is 7 cm long, and the length of the suspension rope 4 between the isolation ball 3 and the reset ball 5 is 1.5 cm.
[0015] A reset ball 5 with a weight greater than that of the isolation ball 3 is also fixed on the suspension rope 4 above the isolation ball 3. The distance between the reset ball 5 and the specimen curing plate 11 below is greater than the height of the specimen 6. The fixing point at the top of the suspension rope 4 is located above the two specimen placement positions and offset by 5 cm toward the specimen entrance. The offset is the longitudinal distance between the previous specimen 6 and the fixing point at the upper end of the suspension rope 4.
[0016] When in use, the specimens 6 are placed in sequence to the specimen placement position from the specimen entrance direction on the specimen curing plate 11. During the process of placing the previous specimen 6, the isolation ball 3 passes through the isolation ball 3. Under the action of the reset ball 5, the isolation ball 3 passes over the specimen 6 and detaches from the specimen 6, that is, the lateral traction force of the reset ball 5 on the isolation ball 3 through the hanging rope 4 is greater than the lateral friction force of the specimen 6 on the isolation ball 3 when the isolation ball 3 is above the specimen 6, so as to ensure that the isolation ball 3 will not be retained on the specimen 6. When the next specimen 6 is placed in, the isolation ball 3 is clamped between the two specimens 6. The vertical traction force of the reset ball 5 on the isolation ball 3 through the hanging rope 4 is less than the sum of the friction force of the specimen 6 on the isolation ball 3 on both sides of the reset ball 5 and the self-weight of the isolation ball 3. Therefore, after the two specimens 6 are placed in, the isolation ball 3 can always be located between the two specimens 6 to play an isolation role and will not slide out due to the traction of the hanging rope 4. The specimens 6 are placed in sequence according to the above method, and the two adjacent specimens 6 can be separated by the isolation ball 3.
[0017] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements 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 test block curing spacing isolation device, comprising a curing frame (1), characterized in that: The curing rack (1) comprises at least two specimen curing plates (11) distributed vertically, the specimen curing plates (11) being arranged horizontally, and the upper end of the specimen curing plate (11) being provided with two longitudinal isolation strips (2) arranged in parallel, and a specimen placement area having specimen placement positions arranged in sequence is provided between the two longitudinal isolation strips (2), and an isolation ball (3) is suspended between two adjacent specimen placement positions via a suspension rope (4), and the distance between the isolation ball (3) and the specimen curing plate (11) below is less than the height of the specimen (6), and the top of the suspension rope (4) is fixed to the specimen curing plate (11) above; A reset ball (5) having a weight greater than that of the isolation ball (3) is also fixed on the suspension rope (4) above the isolation ball (3); the distance between the reset ball (5) and the specimen curing plate (11) below is greater than the height of the specimen (6); the fixing point at the top of the suspension rope (4) is located above the two specimen placement positions and offset toward the specimen entrance; when the isolation ball (3) is above the specimen (6), the lateral traction force exerted by the reset ball (5) on the isolation ball (3) through the suspension rope (4) is greater than the lateral friction force exerted by the specimen (6) on the isolation ball (3); when the isolation ball (3) is sandwiched between the two specimens (6), the vertical traction force exerted by the reset ball (5) on the isolation ball (3) through the suspension rope (4) is less than the sum of the friction force exerted by the specimens (6) on the isolation ball (3) on both sides of the reset ball (5) and the weight of the isolation ball (3).
2. A concrete test block curing spacing isolation device according to claim 1, characterized in that: The distance between the two longitudinal isolation strips (2) is 1-5 cm greater than the width of the test piece (6).
3. A method for using the concrete test block curing spacing isolation device as described in claim 1 or 2, the specific method is as follows: the test pieces (6) are placed in sequence to the test piece placement position from the test piece entrance direction on the test piece curing plate (11), and the previous test piece (6) passes through the isolation ball (3) during the placement process. The isolation ball (3) passes over the test piece (6) and detaches from the test piece (6) under the action of the reset ball (5). When the next test piece (6) is placed, the isolation ball (3) is clamped between the two test pieces (6). The vertical traction force of the reset ball (5) on the isolation ball (3) through the suspension rope (4) is smaller than the sum of the friction force of the test pieces (6) on the isolation ball (3) on both sides of the reset ball (5) and the self-weight of the isolation ball (3). The isolation ball (3) can always be located between the two test pieces (6) to play an isolation role. The test pieces (6) are placed in sequence according to the above method, and the two adjacent test pieces (6) are separated by the isolation ball 3.