A building material testing device

Abstract

The present invention provides a building material testing device, which relates to the field of infrastructure material testing. It includes a sieve cup and a number of sieve holes arrayed around the side wall of the sieve cup. A cross partition is arranged inside the sieve cup; and a cover plate is provided, which is covered at the cup mouth of the sieve cup and presses against the cross partition, so that the cross partition divides the internal space of the sieve cup into a plurality of non-connected sieve cavities; and a soft rod, which sequentially penetrates the cover plate, the cross partition and the sieve cup deviating from the axis of the sieve cup, and then reverses the end part to penetrate the sieve cup, the cross partition and the cover plate again at the relative position of the penetration point and connects the head and tail with the other end part. In the present invention, sand is placed in the sieve cavity, and by applying torsion to the combination of the sieve cup, the cover plate and the cross partition through the use of the soft rod, the sand is energized in the sieve cavity and is thrown outwards through the sieve holes, so as to detect the amount of sand not sieved out in the sieve cup and calculate the mass of the sand.

Description

Technical Field

[0001] The present invention relates to the field of infrastructure material testing, and particularly to a building material testing device. Background Art

[0002] The fineness modulus is an important index for measuring the quality of sand, which directly affects the workability, strength and impermeability of concrete. For the fineness modulus, the lower the value, the coarser the sand. Generally, the fineness modulus range of sand used in ordinary concrete is within 3.7 - 1.6. Therefore, it is necessary to detect sand and control the fineness modulus of sand within an appropriate range.

[0003] For the detection of the fineness modulus of sand, professional equipment including fineness modulus detectors is used for accurate measurement. However, considering the relevant processes such as sample submission, testing and result issuance, the detection cycle of professional equipment such as fineness modulus detectors is long. Therefore, it is not suitable for temporary or rapid detection. Thus, there is an urgent need for a rapid detection device. Summary of the Invention

[0004] The purpose of the present invention is to provide a building material testing device to solve the technical problem that professional equipment such as fineness modulus detectors is not suitable for temporary or rapid detection due to its long detection cycle during accurate measurement.

[0005] To solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A building material testing device includes a sieve cup and a plurality of sieve holes arrayed around the side wall of the sieve cup. A cross partition is arranged in the sieve cup; and

[0007] A cover plate is arranged at the mouth of the sieve cup and presses against the cross partition, so that the cross partition divides the internal space of the sieve cup into multiple non - communicating sieve cavities; and

[0008] A soft rod sequentially penetrates through the cover plate, the cross partition and the sieve cup deviating from the axis of the sieve cup, and then reverses the end part and penetrates through the sieve cup, the cross partition and the cover plate again at the relative position of the penetration point to connect with the other end head end to end. It is used to pre - apply torsion to the sieve cup. By reciprocally pulling the end part of the soft rod extending outwards relative to the sieve cup, a forward and reverse alternating torsion is continuously applied, so that the combination of the sieve cup, the cover plate and the cross partition rotates reciprocally and alternately.

[0009] Preferably, a plurality of the sieve holes form an annular group by annularly arraying on the side wall of the sieve cup, and adjacent sieve holes have channels connecting each other.

[0010] Preferably, the cross partition is stationary in the sieve cup.

[0011] Preferably, a groove is provided at the side wall of the sieve cup, and a plurality of positioning grooves are arranged in an array along the height direction of the groove so that the cross partition is positioned at the groove.

[0012] Preferably, the cross partition includes four partitions combined together and provided with latch grooves at the combined positions, wherein partition grooves are provided in two partitions extending in the same direction, and an I-shaped block sliding along the extending direction of the partition is provided in the partition groove, one end of the I-shaped block extends into the latch groove, and the other end is provided with an insert that cooperates with a plurality of positioning grooves, which is used for extending the I-shaped block into the groove and inserting the insert into the positioning groove when the I-shaped block is pushed along the latch groove.

[0013] Preferably, a protrusion engaged with the partition groove wall is provided at the recess of the I-shaped block, and a spring that resists the protrusion and the I-shaped block is provided between the protrusion and the I-shaped block. The spring is used to push the I-shaped block and retract it into the pin groove again.

[0014] Preferably, a latch inserted into the latch slot is installed at the cover plate, and the latch pin is plug-in-pull-matched with the latch slot, and is used to be inserted into the latch slot to push the I-shaped block to slide in the partition slot.

[0015] Preferably, the cross partition is movable in the sieve cup.

[0016] Preferably, a rotating shaft rotatably matched with the sieve cup is installed at the cross partition.

[0017] The beneficial effects of the present invention are:

[0018] 1. The present invention places sand in the sieve cavity, and uses a soft rod to apply torque to the combination of the sieve cup, the cover plate and the cross partition plate, so that the sand is energized in the sieve cavity and thrown out through the sieve holes, thereby detecting the amount of sand in the sieve cup that has not been screened out and measuring the quality of the sand.

[0019] 2. The present invention inserts the insert into the channel or the sieve hole, and by rotating the cross partition, uses the torque to squeeze and crush the sand densely packed in the sieve hole or in the channel, thereby avoiding the technical problem that the screening effect is greatly reduced due to the dense sand in the sieve hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a building material detection device of the present invention;

[0021] Figure 2 for Figure 1 Schematic diagram of the structure after removing the cover;

[0022] Figure 3 for Figure 1 Schematic diagram of the structure when separated from the detection subject;

[0023] Figure 4 forFigure 3 Schematic structural diagram of the detection main body shown

[0024] Figure 5 is Figure 4 Schematic structural diagram of the detection main body in the screening mode shown

[0025] Figure 6 is Figure 4 Schematic structural diagram of the detection main body in the cleaning mode shown

[0026] Figure 7 Amplified schematic structural diagram of the side wall of the screening cup

[0027] Figure 8 Schematic exploded view of the cover plate and the mode adjustment member

[0028] Figure 9 is Figure 8 Schematic structural diagram of the mode adjustment member shown

[0029] Figure 10 is Figure 9 Schematic perspective cross-sectional view of the mode adjustment member shown

[0030] Reference numerals: 1, soft rod; 2, screening cup; 3, cover plate; 4, cross partition; 5, channel; 6, screening hole; 7, plug pin; 8, groove; 9, positioning groove; 10, first through hole; 11, second through hole; 12, plug pin groove; 13, rotating shaft; 14, insertion piece; 15, I-shaped block; 16, protrusion; 17, spring; 18, partition groove. Detailed implementation manners

[0031] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments and the accompanying drawings. However, the following embodiments are only the preferred embodiments of the present invention and not all of them. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative efforts all fall within the protection scope of the present invention.

[0032] The specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0033] Embodiment 1

[0034] In this embodiment, a building material detection device is proposed. Please refer to Figure 1-6 , the main body of the detection device is a screening cup 2, as Figure 2As shown, a number of sieve holes 6 are arrayed on the side wall of the sieve cup 2. In addition, a cross partition 4 is provided inside the sieve cup 2. Correspondingly, a cover plate 3 is provided at the cup mouth of the sieve cup 2. The cover plate 3 covers the cup mouth of the sieve cup 2 and presses against the cross partition 4, so that the cross partition 4 divides the internal placement space of the sieve cup 2 into multiple non-connected sieve cavities.

[0035] Thus, the detection principle of this embodiment has taken shape, that is, by placing the sand in the sieve cavity and applying torsion to the combination of the sieve cup 2, the cover plate 3 and the cross partition 4, the sand can obtain energy in the sieve cavity and be thrown outwards through the sieve holes 6, so as to detect the amount of sand not sieved out in the sieve cup 2, and then calculate the sand quality. Therefore, before detection, it is necessary to measure the total weight and volume of the sand to be tested. After detection, measure the remaining sand in the sieve cup 2 and calculate whether the measured sand meets the construction standards.

[0036] As shown above, the combination of the sieve cup 2, the cover plate 3 and the cross partition 4 requires torsion to sieve out the sand. Considering the convenience of rapid inspection, adding an electric driving part to drive the combination is obviously contrary to the attribute of convenience. Therefore, a soft rod 1 is specifically set, as Figure 1-3 shown, the soft rod 1 sequentially penetrates through the cover plate 3, the cross partition 4 and the sieve cup 2 deviating from the axis of the sieve cup 2, and then reverses the relative position at the penetration end and penetrates through the sieve cup 2, the cross partition 4 and the cover plate 3 again, and is connected end to end with the other end.

[0037] Explanation of how the soft rod 1 controls the rotation of the combination:

[0038] The soft rod 1 must first extend outwards in both directions relative to the combination to form a state as Figure 1 shown. Subsequently, hold the thick cushion of the soft rod 1 and apply torsion to the combination in advance to make the combination rotate. During the rotation, the combination will inevitably wind the soft rod 1. Therefore, by pulling the soft rod 1, the torsion generated when the soft rod 1 is wound is removed, so that the combination rotates in the reverse direction. And because the reverse rotation will wind the soft rod 1 again, and then pull the soft rod 1 again to remove the torsion generated when the soft rod 1 is wound again, so that the combination rotates in a reciprocating manner with the rotation direction changed, so that the sand in the sieve cavity can flow disorderly at the moment when the rotation direction changes, and is thrown outwards through the light-transmitting sieve holes 6 during the rotation.

[0039] Embodiment 2

[0040] In this embodiment, a building material detection device is proposed. The main body of the detection device is a sieve cup 2, as Figure 2 shown, a number of sieve holes 6 are arrayed on the side wall of the sieve cup 2. In addition, a cross partition 4 is provided inside the sieve cup 2. Correspondingly, a cover plate 3 is provided at the cup mouth of the sieve cup 2. The cover plate 3 covers the cup mouth of the sieve cup 2 and presses against the cross partition 4, so that the cross partition 4 divides the internal placement space of the sieve cup 2 into multiple non-connected sieve cavities.

[0041] Thus, the detection principle of the present embodiment has taken shape, that is, by placing sand in the sieve cavity and applying torque to the combination of the sieve cup 2, the cover plate 3 and the cross partition 4, the sand is energized in the sieve cavity and thrown out through the sieve hole 2, so as to detect the amount of sand that has not been sieved out in the sieve cup 2, and then calculate the mass of the sand. To this end, before the detection, it is necessary to measure the total weight and volume of the sand to be tested, and after the detection, measure the remaining sand in the sieve cup 2 to calculate whether the measured sand meets the construction standards.

[0042] This embodiment is an improved example of the embodiment 1, and the specific improvement thereof is that the cross partition plate 4 can move in the sieve cup 2 and can be fixed at a designated position of the sieve cup 2 according to the screening material requirements.

[0043] To do this, see Figure 7-10 A groove 8 is provided at the side wall of the sieve cup 2, and a plurality of positioning grooves 9 are arrayed along the height direction of the groove 8. In the present embodiment, the cross partition 4 is also adjusted accordingly, that is, the cross partition 4 includes four partitions combined together and provided with a latch groove 12 at the combined position, wherein two partitions extending along the same direction are provided with partition grooves 18, and the partition grooves 18 are provided with an I-shaped block 15 sliding along the extending direction of the partition, one end of the I-shaped block 15 extends into the latch groove 12, and the other end is provided with an insert 14 that is plugged in and out of the plurality of positioning grooves 9, so that when the I-shaped block 15 is pushed along the latch groove 12, the I-shaped block 15 is extended into the groove 8 and the insert 14 is inserted into the positioning groove 9, so that the cross partition 4 is fixed in the sieve cup 2.

[0044] Correspondingly, the cross partition 4 can move in the sieve cup 2, but in order to enable the cross partition 4 to move smoothly, a protrusion 16 combined with the wall of the partition groove 18 is required to be provided at the recessed part of the I-shaped block 15, and a spring 17 that resists the protrusion 16 and the I-shaped block 15 is provided between the protrusion 16 and the I-shaped block 15. The spring 17 is used to push the I-shaped block 15 so that the I-shaped block 15 is retracted into the latch groove 12 again (the insert 14 is retracted into the partition groove 18), thereby releasing the restriction of the groove 8 on the cross partition 4. In addition, a rotating shaft 13 that cooperates with the sieve cup 2 for rotation is installed at the partition, based on which a torque is applied to the cross partition 4 to rotate the cross partition 4 in the sieve cup 2.

[0045] It should be noted that if Figure 3 As shown, the component controlling the movement of the I-shaped block 15 is a latch 7. Specifically, the latch 7 inserted into the latch slot 12 is installed at the cover plate 3. The latch 7 is plug-in-pull fit with the latch slot 12 and is used to be inserted into the latch slot 12 to push the I-shaped block 15 to slide in the partition slot 18.

[0046] The rotation of the cross partition 4 in the sieve cup 2 is not only for rotation, but its main purpose is to clean the dense sand in the sieve hole 6. Figure 7As shown, a number of sieve holes 6 form a ring group at the side wall of the sieve cup 2 in a circular array, and adjacent sieve holes 6 have channels 5 communicating with each other. Thus, when the cross partition 4 gets rid of the restriction of the groove 8 and deviates from the groove 8, by inserting the pin 7 into the pin slot 12, the I-shaped block 15 and the insertion piece 14 extend outwards relative to the partition again. In this extension, the insertion piece 14 is limited to be inserted into the channel 5 or the sieve hole 6, and by rotating the cross partition 4, the sand compacted in the sieve hole 6 or the channel 5 is crushed by torsion, thereby avoiding the technical problem that the screening effect is greatly reduced due to the sand compacting the sieve hole 6.

[0047] Further description of Embodiment 2, that is, a second through hole 11 is provided in two partitions extending along the same aspect. Correspondingly, a first through hole 10 corresponding to the second through hole 11 is provided at the cover plate 3. In addition, there is also a through hole (not shown in the figure) at the bottom of the cup of the sieve cup 2. Thus, when the through holes coincide, as the through channel of the soft rod 1, the soft rod 1 is provided at the combination.

[0048] Regarding the description of the channel 5, the setting range of the channel 5 is limited to the side wall of the sieve cup 2, but does not include the groove 8.

[0049] Regarding the description of the I-shaped block 15, one end of the I-shaped block 15 located in the pin slot 12 is preferably an inclined end with a slope surface. In addition, the inclined end should have elasticity. Thus, it is beneficial for the pin 7 to be inserted into the pin slot 12, and at the same time, it is also convenient for the pin 7 to be fixed in the pin slot 12.

[0050] In the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through other features between them. Moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "under" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0051] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A building material testing device, comprising a sieve cup (2) and a plurality of sieve holes (6) arrayed around the side wall of the sieve cup (2), characterized in that: A cross partition (4) is provided inside the sieve cup (2); and a cover plate (3) is arranged at the mouth of the sieve cup (2) and presses against the cross partition (4), so that the cross partition (4) divides the internal space of the sieve cup (2) into a plurality of non - communicating sieve cavities; and a flexible rod (1) sequentially penetrates through the cover plate (3), the cross partition (4) and the sieve cup (2) deviating from the axis of the sieve cup (2), and then reverses the end part and penetrates through the sieve cup (2), the cross partition (4) and the cover plate (3) again at the relative position of the penetration point and is connected end to end with the other end part, which is used to pre - apply torsion to the sieve cup (2). By reciprocally pulling the end part of the flexible rod (1) extending outwards relative to the sieve cup (2), positive and reverse alternating torques are continuously applied, so that the combination of the sieve cup (2), the cover plate (3) and the cross partition (4) rotates reciprocally and alternately.

2. The building material testing equipment according to claim 1, characterized in that: A plurality of the sieve holes (6) are annularly arrayed on the side wall of the sieve cup (2) to form a ring group, and adjacent sieve holes (6) have channels (5) communicating with each other.

3. An architectural material testing device according to claim 1, characterized in that: The cross partition (4) is stationary inside the sieve cup (2).

4. The building material testing device according to claim 3, characterized in that: A groove (8) is arranged on the side wall of the sieve cup (2), and a plurality of positioning grooves (9) are arrayed along the height direction of the groove (8) to position the cross partition (4) at the groove (8).

5. An inspection device for building materials according to claim 4, characterized in that: The cross partition (4) includes four partitions combined together and provided with a pin slot (12) at the combination part. Among them, two partitions extending in the same direction are provided with partition slots (18), and an I - shaped block (15) sliding along the extension direction of the partition is arranged in the partition slot (18). One end of the I - shaped block (15) extends into the pin slot (12), and the other end is installed with a tab (14) in plug - and - play cooperation with a plurality of positioning grooves (9), which is used to push the I - shaped block (15) along the pin slot (12), so that the I - shaped block (15) extends into the groove (8) and inserts the tab (14) into the positioning groove (9).

6. The building material testing equipment according to claim 5, characterized in that: A protrusion (16) combined with the groove wall of the partition slot (18) is arranged at the recess of the I - shaped block (15). A spring (17) for resisting the protrusion (16) and the I - shaped block (15) is arranged between the protrusion (16) and the I - shaped block (15). The spring (17) is used to push the I - shaped block (15) and then make the I - shaped block (15) shrink into the pin slot (12) again.

7. An architectural material testing device according to claim 5, characterized in that: A pin (7) inserted into the pin slot (12) is installed at the cover plate (3), and the pin (7) is in plug - and - play cooperation with the pin slot (12), which is used to insert into the pin slot (12) to push the I - shaped block (15) to slide in the partition slot (18).

8. An inspection device for building materials according to claim 1, characterized in that: The cross partition (4) is movable inside the sieve cup (2).

9. An architectural material testing device according to claim 3 or 8, characterized in that: A rotating shaft (13) rotatably matched with the sieve cup (2) is installed at the cross partition (4).

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