CN209764769U - Concrete shrinkage dilatometer that detection efficiency is high - Google Patents
Concrete shrinkage dilatometer that detection efficiency is high Download PDFInfo
- Publication number
- CN209764769U CN209764769U CN201920252025.9U CN201920252025U CN209764769U CN 209764769 U CN209764769 U CN 209764769U CN 201920252025 U CN201920252025 U CN 201920252025U CN 209764769 U CN209764769 U CN 209764769U
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- backup plate
- bevel gear
- base
- connecting block
- detection efficiency
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- 238000001514 detection method Methods 0.000 title claims abstract description 21
- 230000008602 contraction Effects 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims description 16
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 7
- 238000005070 sampling Methods 0.000 description 2
- 238000012952 Resampling Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The utility model relates to a concrete contraction dilatometer that detection efficiency is high, the on-line screen storage device comprises a base, first backup plate, the second backup plate, logical groove has been seted up on first backup plate and the second backup plate, it has the connecting block to lead to the inslot to slide, the both sides protrusion of connecting block has the slider, logical inslot is seted up and is supplied the spout that the slider slided, it has the lead screw to go back threaded connection in the connecting block, lead screw protrusion in the top of first backup plate and second backup plate and with first backup plate, the second backup plate rotates and is connected, threaded connection has the screw rod on the connecting block in the first backup plate, fixedly connected with percentage table on the connecting block in the second backup plate, the screw rod, the percentage table all staggers mutually with the lead screw. The utility model discloses a set up the lead screw and drive the connecting block and slide from top to bottom along the spout to make screw rod and percentage table adaptable in the concrete sample of co-altitude, it is wider to the application scope of concrete sample, and need not to take a sample repeatedly to the concrete sample, so that detect the concrete sample fast, and then can improve the detection efficiency to the concrete sample.
Description
Technical Field
The utility model belongs to the technical field of the technique that the concrete detected and specifically relates to a concrete shrinkage dilatometer that detection efficiency is high is related to.
Background
The concrete shrinkage and expansion instrument is a special instrument for measuring the change of the length or the volume of a concrete sample in the hardening process under a certain environmental condition, the concrete can expand and contract when meeting the change of the natural environment, and the expansion and the contraction of the concrete can cause the cracking of a wall body to influence the index of the durability evaluation of the concrete.
The existing concrete contraction and expansion instrument is shown in figure 1 and comprises a base 1, a first backup plate 2 and a second backup plate 3 which are symmetrically arranged at two ends of the base 1, wherein a screw 21 is connected with the first backup plate 2 through an internal thread, and a dial indicator 31 is fixedly connected in the second backup plate 3; when the concrete expansion test is carried out, a concrete sample is placed between the screw rod 21 and the dial indicator 31, the screw rod 21 is rotated to enable two sides of the concrete sample to be respectively abutted against the screw rod 21 and the dial indicator 31, the concrete sample is enabled to be pre-pressed against the dial indicator 31, and then the expansion and contraction changes of the concrete are observed through changing the environment and reading of the dial indicator 31.
The above prior art solutions have the following drawbacks: above-mentioned concrete sample has the height at the in-process that obtains, the condition of variation in size, and the height of screw rod 21 and percentage table 31 position is fixed, in case place the height that the height of the concrete sample of carrying out the test on base 1 does not reach screw rod 21 and percentage table 31 and locates, then screw rod 21 and percentage table 31 can't offset with the concrete sample, lead to unable concrete sample to detect, need to change the concrete sample this moment, thereby need the resampling, waste more time again in the sampling process, and then influence the detection efficiency of concrete sample.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a concrete shrinkage dilatometer that detection efficiency is high can improve concrete sample's detection efficiency.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: the utility model provides a concrete contraction dilatometer that detection efficiency is high, includes the base, sets up in first backup plate, the second backup plate of base both sides, logical groove has all been seted up on first backup plate and the second backup plate, it has the connecting block to lead to the inslot to slide, the both sides protrusion of connecting block has the slider, logical inslot has seted up the confession the spout that the slider slided, go back threaded connection in the connecting block has the lead screw, lead screw protrusion in the top of first backup plate and second backup plate and with first backup plate, second backup plate rotate to be connected, threaded connection has the screw rod on the connecting block in the first backup plate, fixedly connected with percentage table on the connecting block in the second backup plate, screw rod, percentage table all with the lead screw is crisscross.
By adopting the technical scheme, when the concrete sample is detected, the concrete sample is placed on the base, when the height of the concrete sample is lower than that of the screw rod and the dial indicator, the screw rod can be rotated to enable the connecting block to move downwards along the sliding groove so as to drive the screw rod and the dial indicator to move downwards to a position where the screw rod and the dial indicator can be abutted against the side wall of the concrete sample, then the environment is changed to detect the concrete sample, and when the height of the concrete sample is higher, the screw rod and the dial indicator can be rotated reversely so as to enable the screw rod and the dial indicator to move upwards to a proper position where the screw rod and the dial indicator can be abutted against the concrete sample; this kind drives the mode that the connecting block slided from top to bottom along the spout through setting up the lead screw to make screw rod and percentage table adaptable in the concrete sample of co-altitude not, it is wider to the application scope of concrete sample, and need not to sample repeatedly the concrete sample, so that detect the concrete sample fast, and then can improve the detection efficiency to the concrete sample.
Preferably, the bottom of the sliding groove is provided with a plurality of clamping grooves at equal intervals along the vertical direction, and the side wall of the sliding block is protruded with soft clamping blocks in clamping fit with the clamping grooves.
Through adopting above-mentioned technical scheme, set up a plurality of draw-in grooves through equidistant to carry out the joint through soft fixture block and draw-in groove, make the connecting block carry out the in-process that slides from top to bottom along the spout, can accurately know the distance that slides, and then make screw rod and percentage table portable the same distance.
Preferably, a first cavity and a second cavity are respectively formed in the base at positions corresponding to the first backup plate and the second backup plate, the screw rods penetrate through the first cavity and the second cavity and are rotatably connected with the base, and a driving assembly for driving the two screw rods to rotate simultaneously is arranged in the base.
through adopting above-mentioned technical scheme, through setting up drive assembly to drive two lead screws and rotate simultaneously, so that the screw rod removes the same distance with the percentage table, so that when screw rod and percentage table butt on concrete sample, the butt point department of screw rod and percentage table to concrete sample is on same straight line, and then can improve concrete sample's detection accuracy.
Preferably, still the level is equipped with the actuating lever that both ends wore to establish respectively to first chamber and second intracavity in the base, drive assembly includes first drive bevel gear, second drive bevel gear, coaxial coupling on the lead screw in first drive bevel gear, second drive bevel gear, the drive on the actuating lever pivoted driving piece, first drive bevel gear and first drive bevel gear mutually perpendicular mesh and be located first intracavity, second drive bevel gear and second drive bevel gear mutually perpendicular mesh and be located in the second chamber, first drive bevel gear is located the below of first drive bevel gear, second drive bevel gear is located the top of second drive bevel gear.
Through adopting above-mentioned technical scheme, when needing to drive the lead screw rotation simultaneously, accessible driving piece drives the actuating lever and rotates, and the actuating lever drives first transmission bevel gear and the second transmission bevel gear in first chamber and the second chamber simultaneously and rotates, and first drive bevel gear rotates simultaneously with second drive bevel gear this moment, and because first drive bevel gear is located the below of first transmission bevel gear, second drive bevel gear is located the top of second transmission bevel gear for two lead screws carry out the syntropy and rotate simultaneously, and then make the screw rod remove the same distance with the percentage table.
Preferably, the confession has still been seted up in the base the third chamber that the actuating lever passed, the driving piece including wear to establish extremely in the third chamber and with dwang, coaxial coupling that the base rotates to be connected in initiative bevel gear, coaxial coupling on the dwang are in driven bevel gear on the actuating lever, initiative bevel gear and driven bevel gear mutually perpendicular mesh just all are located in the third chamber, the tip protrusion of dwang in the lateral wall of base.
Through adopting above-mentioned technical scheme, when needs drive the actuating lever and rotate, the rotatory dwang of accessible is in order to drive the rotation of initiative umbrella tooth, and then makes driven umbrella tooth drive actuating lever rotate.
Preferably, the rotating wheel is arranged at the end part of the rotating rod protruding out of the side wall of the base.
Through adopting above-mentioned technical scheme, rotate the wheel through setting up to drive the dwang fast and rotate.
Preferably, the outer side wall of the rotating wheel is provided with anti-skid grains along the circumferential direction.
Through adopting above-mentioned technical scheme, through setting up anti-skidding line to increase and rotate the frictional force that the wheel rotated the in-process, rotate the convenience of in-process with further improvement.
Preferably, one side of the screw rod, which faces the dial indicator, is provided with a touch plate.
Through adopting above-mentioned technical scheme, through setting up the touch panel to increase the butt area to the concrete sample, with the butt intensity of improvement to the concrete sample.
To sum up, the utility model discloses a beneficial technological effect does:
The connecting block is driven to slide up and down along the sliding groove through the screw rod, so that the screw rod and the dial indicator can adapt to concrete samples with different heights, the application range of the concrete samples is wider, repeated sampling of the concrete samples is not needed, the concrete samples can be detected quickly, and the detection efficiency of the concrete samples can be improved.
Drawings
Fig. 1 is a schematic structural diagram of a conventional concrete contraction and expansion instrument.
Fig. 2 is a schematic view of the overall structure of the present invention.
Fig. 3 is a schematic sectional view of the base of the present invention.
In the figure, 1, a base; 11. a first chamber; 12. a second chamber; 13. a third chamber; 14. a drive rod; 2. a first backup plate; 21. a screw; 3. a second backup plate; 31. a dial indicator; 4. a through groove; 41. connecting blocks; 42. a slider; 421. a flexible clamping block; 43. a chute; 431. a card slot; 5. a screw rod; 6. a drive assembly; 61. a first drive bevel gear; 62. a second drive bevel gear; 63. a first transmission bevel gear; 64. a second transmission bevel gear; 65. a drive member; 651. rotating the rod; 652. driving bevel gears; 653. driven bevel gears; 7. a rotating wheel; 71. anti-skid lines; 8. against the plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Refer to fig. 2, do the utility model discloses a concrete contraction and expansion appearance that detection efficiency is high, including base 1, symmetry and set up perpendicularly in first backup plate 2, the second backup plate 3 at base 1 both ends, all seted up logical groove 4 on first backup plate 2 and the second backup plate 3, it has connecting block 41 to lead to slide in the groove 4, and the both sides protrusion of connecting block 41 has two sliders 42 that are the symmetry setting, sets up the spout 43 that supplies slider 42 to slide along vertical direction corresponding to slider 42 place one side on the cell wall that leads to groove 4.
The two connecting blocks 41 are internally and respectively in threaded connection with a screw rod 5, the screw rods 5 extend back to the base 1 and protrude out of the tops of the first backup plate 2 and the second backup plate 3, the screw rods 5 are rotationally connected with the first backup plate 2 and the second backup plate 3, the connecting blocks 41 in the first backup plate 2 are in threaded connection with screw rods 21, the connecting blocks 41 in the second backup plate 3 are fixedly connected with dial indicators 31, and the screw rods 21 and the dial indicators 31 are staggered with the screw rods 5, so that the screw rods 5 are not in contact with the screw rods 21 and the dial indicators 31; one side of the screw 21, which faces the dial indicator 31, is fixedly connected with a contact plate 8, and the diameter of the contact plate 8 is larger than that of the screw 21, so that the contact area of the contact plate to the concrete sample is increased, and the contact strength of the contact plate to the concrete sample is improved; a plurality of clamping grooves 431 are formed in the groove bottom of the sliding groove 43 at equal intervals along the vertical direction, a soft clamping block 421 clamped and matched with the clamping grooves 431 is protruded on the side wall of the sliding block 42, the soft clamping block 421 is made of rubber materials, and one end, far away from the sliding block 42, of the soft clamping block 421 is arc-shaped.
Referring to fig. 3, a first cavity 11 and a second cavity 12 are respectively formed in the base 1 at positions corresponding to the first backup plate 2 and the second backup plate 3, the lead screw 5 passes through the connecting block 41 and enters the first cavity 11 and the second cavity 12, the lead screw 5 is rotatably connected with the base 1, a driving rod 14 is horizontally arranged in the base 1, two ends of the driving rod are respectively penetrated into the first cavity 11 and the second cavity 12, and the driving rod 14 is rotatably connected in the base 1.
Still be equipped with two lead screws 5 drive assembly 6 that rotate simultaneously in the base 1, drive assembly 6 includes coaxial fixed connection in the first drive bevel gear 61 on lead screw 5, second drive bevel gear 62, coaxial fixed connection in the first transmission bevel gear 63 on the actuating lever 14, second transmission bevel gear 64, drive actuating lever 14 pivoted driving piece 65, first drive bevel gear 61 meshes and is located first chamber 11 with first transmission bevel gear 63 mutually perpendicular, second drive bevel gear 62 meshes and is located second chamber 12 with second transmission bevel gear 64 mutually perpendicular, first drive bevel gear 61 is located the below of first transmission bevel gear 63, second drive bevel gear 62 is located the top of second transmission bevel gear 64.
A third cavity 13 for a driving rod 14 to pass through is further formed in the base 1, distances from the third cavity 13 to the first cavity 11 and the second cavity 12 are the same, the driving part 65 comprises a rotating rod 651 which penetrates through the third cavity 13 and is rotatably connected with the base 1, a driving bevel 652 which is coaxially and fixedly connected to the rotating rod 651, and a driven bevel 653 which is coaxially and fixedly connected to the driving rod 14, the driving bevel 652 and the driven bevel 653 are mutually vertically meshed and are both located in the third cavity 13, and the end part of the rotating rod 651, which is far away from the driving bevel 652, protrudes out of the side wall of the base 1; dwang 651 projects in the lateral wall of base 1 and keeps away from the tip fixedly connected with rotation wheel 7 of base 1, rotates wheel 7 and the coaxial setting of dwang 651, is equipped with anti-skidding line 71 along the circumferential direction on the lateral wall of rotation wheel 7.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a concrete contraction dilatometer that detection efficiency is high, includes base (1), sets up in first backup plate (2), second backup plate (3) of base (1) both sides, its characterized in that: all seted up logical groove (4) on first backup plate (2) and second backup plate (3), it has connecting block (41) to lead to slide in groove (4), the both sides protrusion of connecting block (41) has slider (42), it supplies to have seted up in logical groove (4) spout (43) that slider (42) slided, threaded connection has lead screw (5) still in connecting block (41), lead screw (5) protrusion in the top of first backup plate (2) and second backup plate (3) and with first backup plate (2), second backup plate (3) rotate and are connected, threaded connection has screw rod (21) on connecting block (41) in first backup plate (2), fixedly connected with percentage table (31) on connecting block (41) in second backup plate (3), screw rod (21), percentage table (31) all with lead screw (5) are crisscross.
2. The concrete contraction-expansion instrument with high detection efficiency according to claim 1, wherein: the groove bottom of spout (43) is provided with a plurality of draw-in grooves (431) along vertical direction equidistant, the protrusion has on the lateral wall of slider (42) with draw-in groove (431) joint complex soft fixture block (421).
3. The concrete contraction-expansion instrument with high detection efficiency according to claim 1, wherein: the novel lead screw structure is characterized in that a first cavity (11) and a second cavity (12) are respectively formed in the base (1) corresponding to the first backup plate (2) and the second backup plate (3), the lead screw (5) penetrates through the first cavity (11) and the second cavity (12) and is rotatably connected with the base (1), and a driving assembly (6) for driving the two lead screws (5) to rotate simultaneously is arranged in the base (1).
4. The concrete contraction and expansion instrument with high detection efficiency according to claim 3, wherein: a driving rod (14) with two ends respectively penetrating into the first cavity (11) and the second cavity (12) is horizontally arranged in the base (1), the driving component (6) comprises a first driving bevel gear (61) and a second driving bevel gear (62) which are coaxially connected to the screw rod (5), a first transmission bevel gear (63) and a second transmission bevel gear (64) which are coaxially connected to the driving rod (14), and a driving piece (65) which drives the driving rod (14) to rotate, the first driving bevel gear (61) and the first transmission bevel gear (63) are mutually vertically meshed and are positioned in the first cavity (11), the second driving bevel gear (62) and the second transmission bevel gear (64) are mutually vertically meshed and are positioned in the second cavity (12), the first drive bevel (61) is located below the first drive bevel (63), the second drive bevel (62) is located above the second drive bevel (64).
5. The concrete contraction and expansion instrument with high detection efficiency according to claim 4, wherein: still seted up the confession in base (1) third chamber (13) that actuating lever (14) passed, driving piece (65) including wear to establish extremely in third chamber (13) and with base (1) rotate dwang (651), coaxial coupling that connect in initiative bevel gear (652), coaxial coupling on dwang (651) are in driven bevel gear (653) on actuating lever (14), initiative bevel gear (652) and driven bevel gear (653) mutually perpendicular mesh just all are located in third chamber (13), the tip protrusion in the lateral wall of base (1) of dwang (651).
6. The concrete contraction and expansion instrument with high detection efficiency according to claim 5, wherein: the end part of the rotating rod (651) protruding out of the side wall of the base (1) is provided with a rotating wheel (7).
7. The concrete contraction and expansion instrument with high detection efficiency according to claim 6, wherein: and anti-skid lines (71) are arranged on the outer side wall of the rotating wheel (7) along the circumferential direction.
8. The concrete contraction-expansion instrument with high detection efficiency according to claim 1, wherein: and a contact plate (8) is arranged on one side of the screw rod (21) facing the dial indicator (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920252025.9U CN209764769U (en) | 2019-02-27 | 2019-02-27 | Concrete shrinkage dilatometer that detection efficiency is high |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920252025.9U CN209764769U (en) | 2019-02-27 | 2019-02-27 | Concrete shrinkage dilatometer that detection efficiency is high |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209764769U true CN209764769U (en) | 2019-12-10 |
Family
ID=68752932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920252025.9U Expired - Fee Related CN209764769U (en) | 2019-02-27 | 2019-02-27 | Concrete shrinkage dilatometer that detection efficiency is high |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209764769U (en) |
-
2019
- 2019-02-27 CN CN201920252025.9U patent/CN209764769U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191210 |
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| CF01 | Termination of patent right due to non-payment of annual fee |