CN211235867U - Concrete shrinkage test device - Google Patents
Concrete shrinkage test device Download PDFInfo
- Publication number
- CN211235867U CN211235867U CN201921870790.3U CN201921870790U CN211235867U CN 211235867 U CN211235867 U CN 211235867U CN 201921870790 U CN201921870790 U CN 201921870790U CN 211235867 U CN211235867 U CN 211235867U
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- fixedly connected
- fixed
- shrinkage test
- concrete shrinkage
- bottom plate
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Abstract
The utility model relates to a concrete test technical field specifically is a concrete shrinkage test device, comprising a base plate, one side fixedly connected with supporting shoe of bottom plate top surface, the equal fixedly connected with slide bar of both sides edge of a supporting shoe side, the opposite side fixedly connected with fixed supporting bench of bottom plate top surface, the one end fixed connection of supporting shoe is kept away from with the slide bar to a fixed supporting bench side that is close to the supporting shoe, the surface sliding of slide bar is connected with and removes a supporting bench. This concrete shrinkage test device through having set up fixed brace table and removing the brace table, and the step has all been seted up to fixed brace table and one side of removing the brace table middle part, and the mutual symmetry of step, can make the work piece erect through the step, as long as the size all can detect at the detection piece of step length within range, removes the brace table simultaneously and slides through the slide bar, slides with the help of the slide bar, can reduce area of contact and frictional force, reaches the purpose that improves the measurement precision.
Description
Technical Field
The utility model relates to a concrete test technical field specifically is a concrete shrinkage test device.
Background
Concrete, referred to as "concrete" for short: refers to a general term for engineering composite materials formed by cementing aggregate into a whole by cementing materials. The term concrete generally refers to cement as a cementing material and sand and stone as aggregate; the cement concrete, also called as common concrete, is obtained by mixing water, additive and admixture in a certain proportion and stirring, and is widely applied to civil engineering. The quality of concrete is crucial in the building, so when cold weather pours, need test the shrinkage of concrete earlier for be convenient for during the building reserve the space, avoid concrete placement weak point to cause the potential safety hazard, present experimental apparatus goes on indoor usually, is difficult to simulate actual natural environment, and the experimental result is too audio-visual moreover.
Chinese patent CN208937588U discloses a concrete shrinkage test device, which is mutually matched by setting a sliding device and a spring, and setting scale marks outside a fixed rail groove, so that the shrinkage of a concrete block can be observed very intuitively, but the concrete shrinkage test device solves the problems and has the following disadvantages:
(1) the sliding device of the device only has one degree of freedom, and the width distance cannot be adjusted, so that the device cannot adapt to concrete detection pieces with different sizes, and the bottom plate of the device has sliding friction with the detection pieces, so that the friction force is large, certain influence is caused on the detection result, and errors are easily caused;
(2) the device can not fix the detection piece left and right, so that the circular detection piece can not be fixed and can roll easily.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Not enough to prior art, the utility model provides a concrete shrinkage test device places the measuring part through setting up the step, can adapt to various not unidimensional measuring parts, has solved the problem of proposing among the above-mentioned background art.
(II) technical scheme
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a concrete shrinkage test device comprises a bottom plate, wherein a supporting block is fixedly connected to one side of the top surface of the bottom plate, sliding bars are fixedly connected to two side edges of one side surface of the supporting block, a fixed supporting table is fixedly connected to the other side of the top surface of the bottom plate, one side surface of the fixed supporting table, which is close to the supporting block, is fixedly connected with one end, which is far away from the supporting block, of the sliding bars, a movable supporting table is slidably connected to the surface of the sliding bars, a reset spring is sleeved on one side, which is close to the supporting block, of the surface of the sliding bars, through grooves are respectively formed in one sides of the tops of the fixed supporting table and the movable supporting table, partition plates are respectively fixedly connected to the middle parts of the through grooves, a lead screw is rotatably connected to the center of the inner wall of the through grooves, the measuring device is characterized in that steps are arranged on one sides of the middle portions of the fixed supporting platform and the movable supporting platform, a sliding groove is formed in the middle of the upper surface of the bottom plate, a dial indicator is fixedly connected to the middle of the movable supporting platform far away from one side face of the step, a measuring wheel is rotatably connected to the bottom end of the dial indicator, and the measuring wheel is in complete contact with the bottom face of the inner wall of the sliding groove.
Optionally, the intersection of the forward thread and the reverse thread is located at the center of the partition plate, the lead screw penetrates through the center of the partition plate, and the lead screw is rotatably connected with the partition plate.
Optionally, the return spring is located between the movable support table and the support block, two ends of the return spring are respectively and fixedly connected with the movable support table and the support block, and the surface of the return spring is completely not in contact with the sliding bar.
Optionally, the position of the fixed support platform corresponds to the position of the movable support platform, the length of the fixed support platform is equal to the length of the movable support platform, and the fixed support platform and the movable support platform are parallel to each other.
Optionally, the number of the steps is two, the two steps are respectively located on one side of the fixed supporting table and one side of the movable supporting table, the two steps are symmetrical to each other, and the two steps are equal in size.
Optionally, the extending direction of the sliding groove is perpendicular to the movable support platform, and the bottom surface of the movable support platform is not in contact with the top surface of the bottom plate at all.
Optionally, the center of the dial indicator corresponds to the center of the chute, two sides of the inner wall of the chute at the bottom of the dial indicator are not contacted completely, and the bottom surface of the inner wall of the chute is frosted.
(III) advantageous effects
The utility model provides a concrete shrinkage test device possesses following beneficial effect:
1. this concrete shrinkage test device, through having set up fixed brace table and removal brace table, the step has all been seted up to fixed brace table and one side of removing brace table middle part, and the mutual symmetry of step, can make the work piece erect through the step, as long as the size all can detect at the detection piece of step length within range, the practicality has been reached, it slides through the draw runner to remove brace table simultaneously, make the work piece not direct with the device's bottom plate contact, slide with the help of the draw runner, can reduce area of contact, reduce frictional force, reach the purpose that improves the measurement precision.
2. This concrete shrinkage test device all sets up the lead screw through the top at fixed brace table and removal brace table, and the both sides of lead screw have been seted up forward screw thread and reverse screw thread respectively, and the equal threaded connection in surface of forward screw thread and reverse screw thread has tight piece of clamp, can make the user make two tight pieces of clamp step up the detection piece to the middle part through rotating the lead screw to can prevent effectively that circular detection piece from rolling, reach the purpose that improves detection stability.
3. This concrete shrinkage test device, through having set up amesdial and spout, the amesdial is fixed in one side of removing a supporting bench, and the extending direction of spout with remove a supporting bench mutually perpendicular, the bottom of amesdial is rotated and is connected with the measuring wheel, the bottom surface of measuring wheel and spout inner wall contacts completely, promote when can making work piece shrink or inflation and remove a supporting bench and slide, the measuring wheel roll that drives the amesdial simultaneously, thereby shrink or inflation data are measured, such design, need not to adjust the amesdial position according to measuring a size, and the amesdial is with measuring a contactless, can improve measurement of efficiency and the life of amesdial.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic side view of the present invention;
fig. 3 is a schematic structural view of the movable supporting table of the present invention.
In the figure: 1-bottom plate, 2-supporting block, 3-fixed supporting table, 4-sliding bar, 5-movable supporting table, 6-reset spring, 7-through groove, 8-partition plate, 9-lead screw, 10-hand wheel, 11-step, 12-clamping block, 13-dial indicator, 14-sliding groove and 15-measuring wheel.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1 to 3, the present invention provides a technical solution: a concrete shrinkage test device comprises a bottom plate 1, wherein one side of the top surface of the bottom plate 1 is fixedly connected with a supporting block 2, the edges of two sides of one side surface of the supporting block 2 are fixedly connected with a sliding bar 4, the other side of the top surface of the bottom plate 1 is fixedly connected with a fixed supporting table 3, one side surface of the fixed supporting table 3 close to the supporting block 2 is fixedly connected with one end of the sliding bar 4 far away from the supporting block 2, the surface of the sliding bar 4 is connected with a movable supporting table 5 in a sliding manner, one side of the surface of the sliding bar 4 close to the supporting block 2 is sleeved with a reset spring 6, one sides of the tops of the fixed supporting table 3 and the movable supporting table 5 are respectively provided with a through groove 7, the middle part of the through groove 7 is respectively and fixedly connected with a partition plate 8, the center of the inner wall of the through groove 7 is rotatably connected with a, step 11 has all been seted up to one side at fixed supporting bench 3 and the 5 middle parts of removal supporting bench, and spout 14 has been seted up at the middle part of bottom plate 1 upper surface, removes the middle part fixedly connected with amesdial 13 that supporting bench 5 kept away from 11 side faces of step, and the bottom of amesdial 13 is rotated and is connected with measuring wheel 15, and measuring wheel 15 contacts completely with the bottom surface of spout 14 inner wall.
As an optimal technical solution of the utility model:
the intersection of the forward thread and the reverse thread is positioned at the center of the partition plate 8, the lead screw 9 penetrates through the center of the partition plate 8, and the lead screw 9 is rotatably connected with the partition plate 8, so that the clamping blocks 12 on the two sides are prevented from colliding.
As an optimal technical solution of the utility model:
reset spring 6 is located and removes between a supporting bench 5 and the supporting shoe 2, reset spring 6's both ends respectively with remove a supporting bench 5 and supporting shoe 2 fixed connection, reset spring 6's surface and smooth pole 4 contactless completely to reduce reset spring 6's friction, improve reset spring 6's elasticity, improve and detect the accuracy.
As an optimal technical solution of the utility model:
the position of the fixed support 3 corresponds to the position of the movable support 5, the length of the fixed support 3 is equal to the length of the movable support 5, and the fixed support 3 and the movable support 5 are parallel to each other.
As an optimal technical solution of the utility model:
the step 11 has two, and two steps 11 are located one side of fixed brace table 3 and removal brace table 5 respectively, and two steps 11 mutual symmetries, two steps 11's size equal to can erect the test piece through two steps 11, make the size can all lay at the test piece of step 11 in the regulation length within range, play the purpose that improves the practicality.
As an optimal technical solution of the utility model:
the extending direction of the sliding chute 14 is perpendicular to the movable supporting platform 5, so that the bottom of the dial indicator 13 is ensured to slide along the horizontal direction, and the bottom surface of the movable supporting platform 5 is not contacted with the top surface of the bottom plate 1 at all.
As an optimal technical solution of the utility model:
the center of the dial indicator 13 corresponds to the center of the sliding groove 14, two sides of the inner wall of the sliding groove 14 at the bottom of the dial indicator 13 are not contacted completely, and the bottom surface of the inner wall of the sliding groove 14 is frosted, so that the friction force between the measuring wheel 15 and the bottom surface of the inner wall of the sliding groove 14 is increased, the measuring wheel 15 is prevented from slipping, and the measuring accuracy is prevented from being influenced.
To sum up, when the concrete shrinkage test device is used, the fixed support platform 3 and the movable support platform 5 are arranged, the steps 11 are respectively arranged on one side of the middle parts of the fixed support platform 3 and the movable support platform 5, the steps 11 are symmetrical, so that a workpiece can be erected through the steps 11, a detection piece with the size within the length range of the steps can be detected, the practicability is improved, meanwhile, the movable support platform 5 slides through the sliding rod 4, the workpiece is not directly contacted with the bottom plate 1 of the device, the contact area can be reduced by means of sliding of the sliding rod, the friction force is reduced, the purpose of improving the measurement accuracy is achieved, the lead screw 9 is arranged at the top parts of the fixed support platform 3 and the movable support platform 5, the two sides of the lead screw 9 are respectively provided with forward threads and reverse threads, and the surfaces of the forward threads and the reverse threads are both in threaded connection with the clamping blocks 12, can make the user make two clamp tight piece 12 step up the detection piece to the middle part through rotating the lead screw, thereby can prevent effectively that circular detection piece from rolling, reach the purpose that improves detection stability, at last through having set up amesdial 13 and spout 14, amesdial 13 is fixed in one side of removing a supporting bench 5, and spout 14's extending direction and removal supporting bench 5 mutually perpendicular, amesdial 13's bottom is rotated and is connected with measuring wheel 15, measuring wheel 15 contacts completely with the bottom surface of spout 14 inner wall, it slides to promote when work piece shrink or inflation to remove a supporting bench 5, drive amesdial 13's measuring wheel 15 roll simultaneously, thereby measure shrink or inflation data, such design, need not to adjust amesdial position according to the measurement piece size, and amesdial and measurement piece contactless, can improve measurement efficiency and amesdial's life.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. The utility model provides a concrete shrinkage test device which characterized in that: the novel support plate comprises a bottom plate (1), a supporting block (2) is fixedly connected to one side of the top surface of the bottom plate (1), sliding bars (4) are fixedly connected to edges of two sides of one side of the supporting block (2), a fixed supporting table (3) is fixedly connected to the other side of the top surface of the bottom plate (1), one side of the fixed supporting table (3) close to the supporting block (2) is fixedly connected to one end, away from the supporting block (2), of the sliding bar (4), a movable supporting table (5) is slidably connected to the surface of the sliding bar (4), a reset spring (6) is sleeved on one side, close to the supporting block (2), of the surface of the sliding bar (4), through grooves (7) are formed in one sides of the tops of the fixed supporting table (3) and the movable supporting table (5), partition plates (8) are fixedly connected to the middle portions of the through grooves, the one end fixedly connected with hand wheel (10) of lead screw (9), forward screw thread and reverse screw thread have been seted up respectively to the both sides of lead screw (9), the equal threaded connection in surface of forward screw thread and reverse screw thread has tight piece (12) of clamp, step (11) have all been seted up with one side at removal brace table (5) middle part in fixed brace table (3), spout (14) have been seted up at the middle part of bottom plate (1) upper surface, remove brace table (5) and keep away from middle part fixedly connected with amesdial (13) of step (11) a side, the bottom of amesdial (13) is rotated and is connected with measuring wheel (15), measuring wheel (15) and the bottom surface of spout (14) inner wall contact completely.
2. A concrete shrinkage test apparatus according to claim 1, wherein: the intersection of forward screw thread and reverse screw thread is located the center department of division board (8), lead screw (9) run through the center department of division board (8), lead screw (9) are connected with division board (8) rotation.
3. A concrete shrinkage test apparatus according to claim 1, wherein: the reset spring (6) is located between the movable supporting platform (5) and the supporting block (2), two ends of the reset spring (6) are fixedly connected with the movable supporting platform (5) and the supporting block (2) respectively, and the surface of the reset spring (6) is not in contact with the sliding bar (4) completely.
4. A concrete shrinkage test apparatus according to claim 1, wherein: the position of the fixed supporting platform (3) corresponds to the position of the movable supporting platform (5), the length of the fixed supporting platform (3) is equal to that of the movable supporting platform (5), and the fixed supporting platform (3) is parallel to the movable supporting platform (5).
5. A concrete shrinkage test apparatus according to claim 1, wherein: the number of the steps (11) is two, the two steps (11) are respectively located on one side of the fixed supporting table (3) and one side of the movable supporting table (5), the two steps (11) are symmetrical to each other, and the sizes of the two steps (11) are equal.
6. A concrete shrinkage test apparatus according to claim 1, wherein: the extending direction of the sliding chute (14) is perpendicular to the movable supporting platform (5), and the bottom surface of the movable supporting platform (5) is not contacted with the top surface of the bottom plate (1) completely.
7. A concrete shrinkage test apparatus according to claim 1, wherein: the center of the dial indicator (13) corresponds to the center of the sliding groove (14), two sides of the inner wall of the sliding groove (14) at the bottom of the dial indicator (13) are not contacted completely, and the bottom surface of the inner wall of the sliding groove (14) is frosted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921870790.3U CN211235867U (en) | 2019-11-01 | 2019-11-01 | Concrete shrinkage test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921870790.3U CN211235867U (en) | 2019-11-01 | 2019-11-01 | Concrete shrinkage test device |
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| Publication Number | Publication Date |
|---|---|
| CN211235867U true CN211235867U (en) | 2020-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921870790.3U Expired - Fee Related CN211235867U (en) | 2019-11-01 | 2019-11-01 | Concrete shrinkage test device |
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| Country | Link |
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| CN (1) | CN211235867U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112051393A (en) * | 2020-09-18 | 2020-12-08 | 王刚强 | Concrete shrinkage tester for simulating construction site |
| CN114235884A (en) * | 2021-12-17 | 2022-03-25 | 中路交科检测技术有限公司 | High-low temperature performance testing device and method for asphalt mixture |
| CN114280282A (en) * | 2021-12-29 | 2022-04-05 | 马前进 | Be used for concrete shrinkage test device |
| CN114322879A (en) * | 2021-12-06 | 2022-04-12 | 舒城久联精密机械有限公司 | Surface circle run-out measuring device for motor shaft machining |
-
2019
- 2019-11-01 CN CN201921870790.3U patent/CN211235867U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112051393A (en) * | 2020-09-18 | 2020-12-08 | 王刚强 | Concrete shrinkage tester for simulating construction site |
| CN112051393B (en) * | 2020-09-18 | 2022-11-01 | 广东东远建设工程管理有限公司 | Concrete shrinkage tester for simulating construction site |
| CN114322879A (en) * | 2021-12-06 | 2022-04-12 | 舒城久联精密机械有限公司 | Surface circle run-out measuring device for motor shaft machining |
| CN114235884A (en) * | 2021-12-17 | 2022-03-25 | 中路交科检测技术有限公司 | High-low temperature performance testing device and method for asphalt mixture |
| CN114235884B (en) * | 2021-12-17 | 2023-10-20 | 中路交科检测技术有限公司 | High-low temperature performance testing device and method for asphalt mixture |
| CN114280282A (en) * | 2021-12-29 | 2022-04-05 | 马前进 | Be used for concrete shrinkage test device |
| CN114280282B (en) * | 2021-12-29 | 2023-10-03 | 马前进 | Be used for concrete shrinkage test device |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200811 Termination date: 20211101 |
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| CF01 | Termination of patent right due to non-payment of annual fee |