CN211374761U - Testing device for measuring free expansion rate of grouting material - Google Patents
Testing device for measuring free expansion rate of grouting material Download PDFInfo
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- CN211374761U CN211374761U CN201921910636.4U CN201921910636U CN211374761U CN 211374761 U CN211374761 U CN 211374761U CN 201921910636 U CN201921910636 U CN 201921910636U CN 211374761 U CN211374761 U CN 211374761U
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Abstract
The utility model discloses a test device for measuring the free expansion rate of grouting material, which comprises a bottom plate, a slidable measuring bracket and a detachable test die; the test mold comprises a first test mold and a second test mold, wherein a plurality of vertical protrusions are arranged on the matching surface of the first test mold, a plurality of vertical grooves are arranged on the matching surface of the second test mold, and the vertical protrusions are respectively clamped in the vertical grooves; the outer walls of the first test die and the second test die are respectively and correspondingly provided with a plurality of groups of reinforcing ribs, the end parts of the reinforcing ribs are respectively provided with a connecting block, and the connecting blocks oppositely arranged on each group of reinforcing ribs are fixed in a screwed mode; mounting flanges are symmetrically arranged at the bottoms of the first test mold and the second test mold respectively, and the mounting flanges are in threaded connection with the bottom plate; this testing device, through setting up split type examination mould, easily assembly and dismantlement, side direction leakproofness is good during the experiment, can not the edge leakage, and joint strength is high, stability is good.
Description
Technical Field
The utility model relates to thick liquids expansion ratio test device technical field, concretely relates to survey mud jacking material free expansion ratio test device.
Background
The slurry is widely applied to the fields of secondary grouting, anchor bolt anchoring, concrete reinforcing and repairing, road grouting reinforcing and the like. The expansion rate of the grouting material is a key detection index and is determined by a special expansion tester. The grouting material has large truncated cone fluidity after being mixed, and if the grouting material does not expand in the early stage, the grouting material is bound to shrink; even if the later expansion can compensate the earlier shrinkage, the early shrinkage of the slurry has negative influence on the compactness of the grouting; air is easy to be introduced, and the effective bearing surface is reduced; if the later expansion cannot compensate the earlier shrinkage, the hollow bulge is directly caused, and the bearing function of the grouting layer is lost; therefore, the early expansion is an important characteristic, and has important guiding significance for accurately measuring the size.
In the measurement of the expansion ratio of a grouting material, a test die and a measurement holder are generally used; however, in the existing detection instrument, one type is a square test mold, and the test mold has the defects that four wall plates are mechanically connected by threads, the installation and the disassembly are complicated and time-consuming, the sealing performance is poor, and the side leakage phenomenon is easy to generate; the other type is a cylinder test mold. The mold testing component has the defects that the cylindrical mold testing component is an integral body, the mold is not easy to demold after slurry is solidified, demolding tools such as a hammer, a wedge and the like are often used for forced demolding, and the cylindrical mold testing is deformed due to long-term operation, so that the service life is influenced, and the precision is influenced; and the position of the measuring bracket is relatively fixed, and the measuring bracket needs to be disassembled and assembled during each test, which is troublesome.
Disclosure of Invention
The utility model aims at providing a survey mud jacking material free expansion rate test device to the problem that prior art exists.
In order to achieve the above object, the utility model adopts the following technical scheme:
a test device for measuring the free expansion rate of a grouting material comprises a bottom plate, wherein a slidable measuring bracket and a detachably mounted test mold are arranged on the bottom plate; the test mold comprises a first test mold and a second test mold which are matched with each other, a plurality of vertical protrusions are arranged on the matching surface of the first test mold, a plurality of vertical grooves are arranged on the matching surface of the second test mold, and the vertical protrusions are clamped in the vertical grooves respectively; the outer walls of the first test die and the second test die are respectively and correspondingly provided with a plurality of groups of reinforcing ribs, the end parts of the reinforcing ribs are respectively provided with a connecting block, and the connecting blocks oppositely arranged on each group of reinforcing ribs are fixed in a screwed mode; the bottom of the first test mold and the bottom of the second test mold are symmetrically provided with mounting flanges respectively, and the mounting flanges are in threaded connection with the bottom plate.
The test device for measuring the free expansion rate of the grouting material is easy to assemble, disassemble and demould, has good lateral sealing performance, high connection strength and good stability, and can not cause lateral leakage during the test; the first test die and the second test die which are matched with each other are arranged, so that the test dies can be assembled and disassembled quickly, and quick demolding is facilitated after the test is finished; the movable measuring support can move aside when a test mold is installed or disassembled on the bottom plate, does not affect the installation and the disassembly of the test mold, can move to a designated position and be fixed during testing, and is favorable for carrying out the test quickly.
The vertical protrusions are matched with the vertical grooves, so that a plurality of bent seams are formed on the matching surface, and slurry can be prevented from flowing out of the matching surface of the test mold; meanwhile, the side support effect of the matching surface can be increased, and when the slurry extrudes the side wall, the matching surface cannot slide or be dislocated;
the strengthening rib can strengthen the intensity of examination mould on the one hand, and on the other hand makes first examination mould and second examination mould can pass through bolt fixed connection, is similar to the clamp and will try the mould chucking.
The mounting flange is used for fixing the assembled test mold on the bottom plate, so that the test mold is prevented from shaking during testing to influence the measurement accuracy.
Further, a glass plate is arranged on the test mold, and a pressing block is arranged on the glass plate; a dial indicator is arranged above the pressing block and fixed on the measuring bracket.
Furthermore, sliding grooves are symmetrically formed in two sides of the bottom plate, sliding blocks are arranged in the sliding grooves, and the measuring support is arranged above the sliding blocks; and a tightening bolt is further arranged on the side edge of the bottom plate, and one end of the tightening bolt extends into the sliding groove.
Furthermore, the sliding groove is an inverted T-shaped sliding groove, and the sliding block is an I-shaped sliding block; the puller bolt is correspondingly arranged in the middle of the sliding groove.
Through the cooperation of "T" shape spout and "worker" font slider, be convenient for measure the quick travel of support, tight bolt in top can push up the slider is fixed it on experimental required position, usually measure the support and move to the central line position of examination mould on, the amesdial of being convenient for can just be to examination mould center, tight bolt in top sets up in this central line place direction.
Furthermore, the measuring support comprises a pair of vertical rods arranged in parallel, a horizontal cross rod is mounted on each vertical rod, the middle of each horizontal cross rod is fixedly connected with the dial indicator, and the indicator needle of the dial indicator is in downward contact with the pressing block.
Furthermore, the two vertical protrusions are vertically arranged on the matching surface of the first test mold in parallel; the corresponding grooves are also two.
Furthermore, handles are symmetrically arranged on the test molds, and a pair of handles are respectively arranged on the outer walls of the first test mold and the second test mold. When the setting of handle was convenient for the drawing of patterns, pull open to both sides first examination mould with the second examination mould, because the easy adhesion of thick liquids solidification back is at examination mould inner wall, directly is difficult for separately, can be convenient for apply external force through the handle and do not harm examination mould itself.
Furthermore, the reinforcing rib, the connecting block and the mounting flange are integrally formed with the first test mold or the second test mold respectively.
Further, the first trial mold and the second trial mold are both rectangular or semicircular.
Further, the reinforcing ribs are circumferentially arranged on the outer wall of the first test mold or the outer wall of the second test mold; the reinforcing ribs are arranged in parallel.
When the test device is used, the first test die and the second test die are clamped together and fixedly connected through bolts; moving the measuring support to one side, mounting the assembled test mold on a test position appointed by the base, fixing the test mold through a bolt, adding slurry to be measured, and sequentially covering a glass plate and a pressing block; and then moving the measuring bracket to be right above the test mold, screwing the tightening bolt to fix the measuring bracket, and abutting the indicator needle of the dial indicator against the pressing block. After the measurement is finished, sliding the measurement support to one side, sequentially taking down the pressing block and the glass plate, dismounting the mounting flange and the bolts on the test mold, taking down the test mold, applying force to separate the test mold through two sides of the handle, and taking off the solidified slurry; and cleaning the test mold and using the test mold for the next test.
Compared with the prior art, the beneficial effects of the utility model are that: 1. the test device for measuring the free expansion rate of the grouting material is easy to assemble and disassemble by arranging the split type test die, has good lateral sealing property during test, does not cause lateral leakage, and has high connection strength and good stability; 2. the vertical protrusions are matched with the vertical grooves, so that a plurality of bent seams are formed on the matching surface, and slurry can be prevented from flowing out of the matching surface of the test mold; meanwhile, the slippage and dislocation of the matching surfaces can be avoided; 3. the reinforcing rib with the connecting block can enhance the strength of the test mold on one hand, and is convenient for fixedly connecting the first test mold and the second test mold through bolts on the other hand; 4. the setting of handle is convenient for when the drawing of patterns, can exert external force and do not harm examination mould itself.
Drawings
FIG. 1 is a schematic view of the overall structure of a test device for measuring the free expansion rate of a grouting material according to the present invention;
FIG. 2 is a schematic view of the direction A-A of a test device for measuring the free expansion rate of a grouting material according to the present invention;
FIG. 3 is a schematic view of the structure B-B of a test device for measuring the free expansion rate of the grouting material according to the present invention;
FIG. 4 is a schematic diagram of the fitting surface structure of the test mold of the testing apparatus for measuring the free expansion rate of the grouting material of the present invention;
FIG. 5 is a schematic view of another test mold structure of the testing apparatus for measuring the free expansion rate of the grouting material according to the present invention;
in the figure: 1. a base plate; 2. a measuring support; 201. a vertical rod; 202. a horizontal cross bar; 3. testing a mold; 301. a first test mold; 302. second mold testing; 4. reinforcing ribs; 5. connecting blocks; 6. installing a flange; 7. a glass plate; 8. briquetting; 9. a dial indicator; 10. a handle; 11. a chute; 12. a slider; 13. jacking the bolt; 14. a vertical protrusion; 15. a vertical groove.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The first embodiment is as follows:
as shown in fig. 1 to 4, a test device for measuring the free expansion rate of grouting material comprises a bottom plate 1, wherein a slidable measuring bracket 2 and a detachable test mold 3 are arranged on the bottom plate 1; the test mold 3 comprises a first test mold 301 and a second test mold 302 which are rectangular and matched with each other, a pair of vertical protrusions 14 is arranged on a matching surface of the first test mold 301, a pair of vertical grooves 15 is arranged on a matching surface of the second test mold 302, and the vertical protrusions 14 are respectively clamped in the vertical grooves 15; the outer walls of the first test mold 301 and the second test mold 302 are respectively and correspondingly provided with an upper group of reinforcing ribs and a lower group of reinforcing ribs 4, the end parts of the reinforcing ribs 4 are respectively provided with a connecting block 5, and the connecting blocks 5 oppositely arranged on each group of reinforcing ribs 4 are fixed in a screwed manner; the bottom of the first test mold 301 and the bottom of the second test mold 302 are respectively and symmetrically provided with mounting flanges 6, and the mounting flanges 6 are screwed on the bottom plate 1.
The test device for measuring the free expansion rate of the grouting material is easy to assemble, disassemble and demould, has good lateral sealing performance, high connection strength and good stability, and can not cause lateral leakage during the test; the first test die 301 and the second test die 302 which are matched left and right are arranged, so that the test dies can be assembled and disassembled quickly, and quick demolding is facilitated after the test is finished; the movable measuring support 2 can move aside when the test mold is installed or disassembled on the bottom plate 1, does not affect the installation and the disassembly of the test mold 3, can move to a designated position and be fixed during testing, and is favorable for carrying out the test quickly.
The vertical protrusions 14 are matched with the vertical grooves 15, so that a plurality of bent seams are formed on the matching surface, and slurry can be prevented from flowing out of the matching surface of the test mold; meanwhile, the side support effect of the matching surface can be increased, and when the slurry extrudes the side wall, the matching surface cannot slide or be dislocated;
the reinforcing rib 4 can enhance the strength of the test mold 3, and enables the first test mold 301 and the second test mold 302 to be fixedly connected through bolts on the side faces, and the test mold 3 is clamped by a clamp.
Further, a glass plate 7 is arranged on the test mold 3, and a pressing block 8 is arranged on the glass plate 7; a dial indicator 9 is arranged above the pressing block 8, and the dial indicator 9 is fixed on the measuring bracket 2.
Furthermore, sliding grooves 11 are symmetrically formed in two sides of the bottom plate 1, sliding blocks 12 are arranged in the sliding grooves 11, and the measuring support 2 is arranged above the sliding blocks 12; the side of the bottom plate 1 is also provided with a puller bolt 13, and one end of the puller bolt 13 extends into the chute 11.
Further, the sliding groove 11 is an inverted T-shaped sliding groove, and the sliding block 12 is an i-shaped sliding block; the puller bolt 13 is correspondingly arranged in the middle of the sliding chute 11.
Through the cooperation of "T" shape spout and "worker" font slider, be convenient for measure the quick travel of support, tight bolt 13 in top can push up slider 12 is fixed it on experimental required position, usually measure on the support removes the central line position to the examination mould, be convenient for the amesdial can just to examination mould center, tight bolt setting in this central line place direction in the top.
Further, the measuring support 2 comprises a pair of vertical rods 201 arranged in parallel, a horizontal cross rod 202 is mounted on the vertical rods 201, the middle of the horizontal cross rod 202 is fixedly connected with the dial indicator 9, and a pointer of the dial indicator 9 is in downward contact with the pressing block 8.
Further, handles 10 are symmetrically arranged on the test mold 3, and a pair of handles 10 are respectively arranged on the outer walls of the first test mold 301 and the second test mold 302. When the setting of handle 10 was convenient for the drawing of patterns, pull open to both sides first examination mould 301 with second examination mould 302, because thick liquids solidify the back and adhere easily at examination mould inner wall, directly be difficult for separately, can be convenient for exert external force through handle 10 and do not harm examination mould itself. Meanwhile, the handle 10 is arranged, so that the test die 3 is convenient to lift, and the carrying is facilitated.
Further, the reinforcing rib 4, the connecting block 5 and the mounting flange 6 are integrally formed with the first trial mold 301 or the second trial mold 302, respectively.
Further, the reinforcing ribs 4 are circumferentially arranged on the outer walls of the first trial mold 301 and the second trial mold 302 at the same time; the upper and lower groups of reinforcing ribs 4 are arranged in parallel.
Example two:
the present embodiment is different from the first embodiment in that a test mold of another shape is provided.
Specifically, as shown in fig. 5, the test mold includes a pair of semicircular first test mold 301 and second test mold 302, and the first test mold 301 and the second test mold 302 are respectively provided with a reinforcing rib 4 and a mounting flange 6 in a circumferential direction; the two ends of the reinforcing rib 4 are provided with connecting blocks 5 and are fixedly connected through bolts; the mounting flange 6 is semicircular and is positioned at the bottom of the test mold; the first test mold 301 and the second test mold 302 are respectively provided with a circumferential vertical protrusion 14 and a circumferential vertical groove 15 which are matched with each other.
By adopting the structure, the circular test mold can also form a split type, and the forced demolding is not needed to be carried out by using demolding tools such as a hammer, a wedge and the like, so that the deformation of the cylinder test mold is reduced, the service life is prolonged, and the influence on the precision is reduced.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A test device for measuring the free expansion rate of grouting material comprises a bottom plate, and is characterized in that a slidable measuring bracket and a detachable test die are arranged on the bottom plate; the test mold comprises a first test mold and a second test mold which are matched with each other, a plurality of vertical protrusions are arranged on the matching surface of the first test mold, a plurality of vertical grooves are arranged on the matching surface of the second test mold, and the vertical protrusions are clamped in the vertical grooves respectively; the outer walls of the first test die and the second test die are respectively and correspondingly provided with a plurality of groups of reinforcing ribs, the end parts of the reinforcing ribs are respectively provided with a connecting block, and the connecting blocks oppositely arranged on each group of reinforcing ribs are fixed in a screwed mode; the bottom of the first test mold and the bottom of the second test mold are symmetrically provided with mounting flanges respectively, and the mounting flanges are in threaded connection with the bottom plate.
2. The test device for measuring the free expansion rate of a grouting material according to claim 1, wherein a glass plate is provided on the test mold, and a pressing block is provided on the glass plate; a dial indicator is arranged above the pressing block and fixed on the measuring bracket.
3. The test device for determining the free expansion rate of grouting material according to claim 1, wherein sliding grooves are symmetrically arranged on two sides of the bottom plate, sliding blocks are arranged in the sliding grooves, and the measuring bracket is arranged above the sliding blocks; and a tightening bolt is further arranged on the side edge of the bottom plate, and one end of the tightening bolt extends into the sliding groove.
4. The test device for determining the free expansion rate of a grouting material according to claim 3, wherein the chute is an inverted T-shaped chute, and the slide block is an I-shaped slide block; the puller bolt is correspondingly arranged in the middle of the sliding groove.
5. The test device for determining the free expansion rate of a grouting material as claimed in claim 1, 2 or 3, wherein the measuring bracket comprises a pair of vertical rods arranged in parallel, and a horizontal cross rod is mounted on the pair of vertical rods.
6. The test device for determining the free expansion rate of the grouting material according to claim 1, wherein the vertical protrusions are arranged in two ways and are vertically arranged on the matching surface of the first test mold in parallel; the corresponding grooves are also two.
7. The apparatus for testing free expansion rate of grouting material according to claim 1, wherein said test molds are symmetrically provided with handles, and a pair of said handles are respectively provided on the outer walls of said first test mold and said second test mold.
8. The test apparatus for determining the free expansion rate of a grouting material according to claim 1, wherein the reinforcing ribs, the connecting blocks and the mounting flange are integrally formed with the first test mold or the second test mold, respectively.
9. The test apparatus for determining the free expansion rate of a grouting material according to claim 1, wherein the first test mold and the second test mold are rectangular or semicircular.
10. The test apparatus for determining the free expansion rate of a grouting material according to claim 1, wherein the reinforcing ribs are circumferentially arranged on the outer wall of the first test die or the second test die; the reinforcing ribs are arranged in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921910636.4U CN211374761U (en) | 2019-11-07 | 2019-11-07 | Testing device for measuring free expansion rate of grouting material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921910636.4U CN211374761U (en) | 2019-11-07 | 2019-11-07 | Testing device for measuring free expansion rate of grouting material |
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| Publication Number | Publication Date |
|---|---|
| CN211374761U true CN211374761U (en) | 2020-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921910636.4U Active CN211374761U (en) | 2019-11-07 | 2019-11-07 | Testing device for measuring free expansion rate of grouting material |
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| CN (1) | CN211374761U (en) |
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2019
- 2019-11-07 CN CN201921910636.4U patent/CN211374761U/en active Active
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