CN210719961U - Experimental centering device of concrete sample compressive strength - Google Patents
Experimental centering device of concrete sample compressive strength Download PDFInfo
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- CN210719961U CN210719961U CN201921587939.7U CN201921587939U CN210719961U CN 210719961 U CN210719961 U CN 210719961U CN 201921587939 U CN201921587939 U CN 201921587939U CN 210719961 U CN210719961 U CN 210719961U
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Abstract
The utility model relates to a concrete sample compressive strength test's centering device belongs to centering device technical field, it includes the press body, be provided with the backing plate on the press body, be equipped with hollow centering plate on the backing plate, hollow position in centering plate is equipped with two second catch plates that set up two first catch plates relatively and set up relatively, be equipped with the first driving piece of distance between two first push pedals of adjustment and adjust the second driving piece of distance between two second push pedals on the centering plate, first driving piece is including rotating the first thread bush of connecting on the centering plate, the second driving piece is including rotating the second thread bush of connecting on the centering plate, the axis direction perpendicular to second push pedal of second thread bush, open the second spout that has the first spout that the first transfer line of cooperation removed and cooperation second transfer line to the centering plate. The utility model discloses have and need not to use naked eye to carry out the central point and aim at, the higher effect of centering precision.
Description
Technical Field
The utility model belongs to the technical field of centering device technique and specifically relates to a concrete sample compressive strength test's centering device is related to.
Background
The concrete press is a press, and is mainly used for testing the compressive strength of building material test blocks such as concrete, cement, high-strength bricks, refractory materials and the like, and also can be used for testing the compressive strength of other non-metallic materials.
The concrete compression test is used for determining the concrete strength grade, and the concrete strength grade is an important index for evaluating the quality of concrete.
The above prior art solutions have the following drawbacks: when a concrete sample compressive strength test is carried out, the concrete sample needs to be placed at the center alignment position of a base plate of a concrete compression testing machine. The existing common method is to judge whether the position is centered through naked eyes, the concrete test piece is generally set to be a square, the area of the bottom end of the concrete test piece is smaller than that of the square base plate, therefore, the center point alignment through the naked eyes is difficult, large errors may exist, great influence is caused on test data, and the working efficiency is also reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a concrete sample compressive strength test's centering device, it has and need not to use naked eye to carry out the central point and aim at, the higher effect of centering precision.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
the centering device comprises a press body, wherein a base plate is arranged on the press body, a hollow centering plate is arranged on the base plate, two first pushing plates and two second pushing plates which are oppositely arranged are arranged at the hollow position of the centering plate, the straight line of the length directions of the first pushing plates and the second pushing plates is enclosed into a rectangle, a first driving piece for adjusting the distance between the two first pushing plates and a second driving piece for adjusting the distance between the two second pushing plates are arranged on the centering plate, the first driving piece comprises a first thread sleeve which is rotatably connected on the centering plate, the axis direction of the first thread sleeve is perpendicular to the first pushing plates, the inner wall of the first thread sleeve is provided with a left-handed internal thread and a right-handed internal thread respectively along the length direction from the middle to the middle in an interrupted manner, first thread bush both ends respectively threaded connection has first drive rod, first drive rod including with first thread bush thread fit's first threaded rod, fixed connection are in first threaded rod keep away from the first montant and the fixed connection of the vertical setting of the one end of first thread bush and be in first montant keep away from the one end of first thread bush with the parallel first horizontal pole of first thread pole axis, first horizontal pole with first slurcam fixed connection, the second driving piece including rotate connect in the second thread bush on the centering plate, the axis direction perpendicular to of second thread bush the second slurcam, second thread bush inner wall is provided with levogyration internal thread and dextrorotation internal thread respectively along length direction from the mean time break, second thread bush both ends respectively threaded connection has the second transfer line, the second transfer line including with second thread bush thread fit's second threaded rod, Fixed connection is in the second threaded rod keep away from the second montant and the fixed connection of the vertical setting of the one end of second thread bush the second montant keep away from the one end of second thread bush with the parallel second horizontal pole of second threaded rod axis, the second horizontal pole with second slurcam fixed connection, first horizontal pole with the second horizontal pole staggers in vertical direction, opens the cooperation to the median plate the first spout and the cooperation that first transfer line removed the second spout that the second transfer line removed.
By adopting the technical scheme, when the centering device for the concrete test piece compressive strength test is used, firstly, a centering plate is placed on a base plate, four sides of the centering plate are aligned with the base plate, a concrete sample is placed inside the centering plate, when a first threaded sleeve rotates, a first threaded rod moves, the first threaded rod drives a first vertical rod to move, the first vertical rod drives a first cross rod to move, the first cross rod drives two first push rods to move relatively until the two first push plates are abutted against the concrete sample, then the second threaded sleeve is rotated, when the second threaded sleeve rotates, the second threaded rod moves, the second threaded rod drives the second vertical rod to move, the second vertical rod drives the second transverse rod to move, the second transverse rod drives the two second pushing rods to move relatively to the two second pushing plates and abut against the concrete sample, and the center point of the concrete sample is right opposite to the center point of the base plate.
The utility model discloses further set up to: first thread bush and second thread bush both ends are rotated and are connected with the spacing ring, fixedly connected with backup pad on the spacing ring, backup pad fixed connection is in on the centering plate.
Through adopting above-mentioned technical scheme, set up backup pad and spacing ring, support first thread bush and second thread bush, make first thread bush and second thread bush structure more stable.
The utility model discloses further set up to: the utility model discloses a centering plate, including centering plate lateral wall fixedly connected with, centering plate is close to the one side of centering plate and is opened there is the sliding tray, sliding tray sliding connection has the counterpoint piece, it has the bar to lead to the groove to open to the position that the centering plate is located the sliding tray, the protrusion has the removal lug on the counterpoint piece, it runs through to remove the lug the bar leads to the groove.
By adopting the technical scheme, after the centering plate is placed on the base plate, the moving lug is stirred to enable the moving lug to move along the strip-shaped through groove, the moving lug drives the aligning block to move, the aligning block slides out from the sliding groove, and the aligning block slides out of the four aligning plates respectively to enable the centering plate to be right opposite to the base plate.
The utility model discloses further set up to: the alignment block is wedge-shaped, and the lower end face of the alignment block faces the base plate.
Through adopting above-mentioned technical scheme, the counterpoint piece sets up to the wedge form, the terminal surface orientation under the counterpoint piece the backing plate is convenient for follow the sliding tray roll-off with the counterpoint piece.
The utility model discloses further set up to: it has two first spacing holes to open on the counterpoint piece, it has two apertures to open on the counterpoint board with big second spacing hole such as first spacing hole, it has two apertures to open on the backing plate with big third spacing hole such as first spacing hole, the second spacing hole with the distance of the vertical direction in third spacing hole with the length that the groove was led to the bar equals, distance between two first spacing holes with two spacing holes of second and two spacing holes of third equal, the spacer pin is worn to be equipped with in first spacing hole.
Through adopting above-mentioned technical scheme, when the counterpoint piece is located the sliding tray, first spacing hole is just right with the spacing hole of second, and the spacer pin runs through first spacing hole and the spacing hole of second, makes counterpoint piece locking at the initial position, when using the centering plate, takes out the spacer pin, and the counterpoint piece slides out the back from the sliding tray, and first spacing hole is just right with the spacing hole of third, runs through first spacing hole and the spacing hole of third with the spacer pin and makes counterpoint piece locking, and it is convenient to lock the convenient operation to go up the mode.
The utility model discloses further set up to: two placing rings are fixedly connected to the outer side wall of the aligning plate, a pin cap is arranged at one end of the limiting pin, and the inner diameter of each placing ring is larger than the outer diameter of the limiting pin and smaller than the outer diameter of the pin cap.
By adopting the technical scheme, when the limiting pin is taken out, the limiting pin is placed in the placing ring, so that the limiting pin is not easy to lose.
The utility model discloses further set up to: and rubber anti-slip pads are sleeved on the outer walls of the first threaded sleeve and the second threaded sleeve.
Through adopting above-mentioned technical scheme, the rubber slipmat is favorable to reducing the experimenter and appears skidding when rotatory first thread bush and second thread bush.
The utility model discloses further set up to: and one surface of the push plate, which is opposite to each other, is fixedly connected with a rubber protection pad.
Through adopting above-mentioned technical scheme, when slurcam and concrete test piece butt, the rubber protection pad is favorable to reducing the position wearing and tearing of slurcam and concrete test piece butt.
To sum up, the utility model discloses a beneficial technological effect does:
1. by adopting the technical scheme, when the centering device for the concrete test piece compressive strength test is used, firstly, a centering plate is placed on a base plate, four sides of the centering plate are aligned with the base plate, a concrete sample is placed inside the centering plate, when a first threaded sleeve rotates, a first threaded rod moves, the first threaded rod drives a first vertical rod to move, the first vertical rod drives a first cross rod to move, the first cross rod drives two first push rods to move relatively until the two first push plates are abutted against the concrete sample, then, rotating a second threaded sleeve, wherein when the second threaded sleeve rotates, a second threaded rod moves, the second threaded rod drives a second vertical rod to move, the second vertical rod drives a second transverse rod to move, the second transverse rod drives two second pushing rods to move relatively until two second pushing plates abut against a concrete test piece, and the center point of the concrete test piece is opposite to the center point of the base plate;
2. after the centering plate is placed on the base plate, the moving lug is shifted to enable the moving lug to move along the strip-shaped through groove, the moving lug drives the alignment block to move, the alignment block slides out of the sliding groove, and the four alignment plates respectively slide out to enable the centering plate to be opposite to the base plate;
3. when the alignment block is located in the sliding groove, the first limiting hole is right opposite to the second limiting hole, the limiting pin penetrates through the first limiting hole and the second limiting hole, the alignment block is locked at an initial position, when the alignment plate is used, the limiting pin is taken out, after the alignment block slides out of the sliding groove, the first limiting hole is right opposite to the third limiting hole, the limiting pin penetrates through the first limiting hole and the third limiting hole, the alignment block is locked, and the locking operation is convenient in the above mode.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic view of the internal structure of the centering plate of the present invention;
fig. 3 is a schematic structural view of the centering plate of the present invention;
fig. 4 is an exploded view of the alignment plate of the present invention;
fig. 5 is an exploded view of the first and second thread bushings of the present invention.
In the figure, 1, a press body; 11. a base plate; 2. a centering plate; 20. a first driving member; 21. a second driving member; 211. a first push plate; 212. a second pusher plate; 213. a rubber protection pad; 22. a first threaded sleeve; 221. a first drive lever; 2211. a first threaded rod; 2212. a first vertical bar; 2213. a first cross bar; 222. a first chute; 223. a limiting ring; 224. a rubber non-slip mat; 23. a second threaded sleeve; 231. a second transmission rod; 2311. a second threaded rod; 2312. a second vertical bar; 2313. a second cross bar; 232. a second chute; 2231. a support plate; 24. a third limiting hole; 25. a positioning plate; 251. a sliding groove; 2511. a positioning block; 2512. moving the projection; 2513. a first limit hole; 2514. a spacing pin; 25141. a pin cap; 252. a strip-shaped through groove; 253. a second limiting hole; 254. a ring is placed.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, for the utility model discloses a centering device that concrete sample compressive strength is experimental, including press body 1, be provided with backing plate 11 on the press body 1, place on the backing plate 11 with the centering plate 2 of 11 upper surface external diameters of backing plate equidimension hollow squares, be provided with first thread bush 22 and second thread bush 23 to centering plate 2 top, first thread bush 22 and second thread bush 23 inner wall are provided with left-handed internal thread and dextrorotation internal thread respectively along length direction from the median discontinuity.
Referring to fig. 2, two first pushing plates 211 and two second pushing plates 212 are oppositely arranged at a hollow position of the centering plate 2, and the pushing plates include the first pushing plates 211 and the second pushing plates 212. The first driving part 20 comprises a first threaded sleeve 22 rotatably connected to the centering plate 2, the axis direction of the first threaded sleeve 22 is perpendicular to the first pushing plate 211, the inner wall of the first threaded sleeve 22 is intermittently provided with left-handed internal threads and right-handed internal threads along the length direction, two ends of the first threaded sleeve 22 are respectively in threaded connection with a first transmission rod 221, the first transmission rod 221 comprises a first threaded rod 2211 in threaded fit with the first threaded sleeve 22, a vertically arranged first vertical rod 2212 fixedly connected to one end of the first threaded rod 2211 far away from the first threaded sleeve 22, and a first transverse rod 2213 fixedly connected to one end of the first vertical rod 2212 far away from the first threaded sleeve 22 and parallel to the axis of the first threaded rod 2211, and the first transverse rod 2213 is fixedly connected with the first pushing plate 211; the second driving piece 21 comprises a second threaded sleeve 23 rotatably connected to the centering plate 2, the axis direction of the second threaded sleeve 23 is perpendicular to the second pushing plate 212, the inner wall of the second threaded sleeve 23 is interrupted in the length direction and is provided with left-handed internal threads and right-handed internal threads, two ends of the second threaded sleeve 23 are respectively in threaded connection with a second transmission rod 231, the second transmission rod 231 comprises a second threaded rod 2311 in threaded fit with the second threaded sleeve 23, a vertically arranged second vertical rod 2312 fixedly connected to one end, away from the second threaded sleeve 23, of the second threaded rod 2311 and a second cross rod 2313 fixedly connected to one end, away from the second threaded sleeve 23, of the second vertical rod 2312 and parallel to the axis of the second threaded rod 2311, the second cross rod 2313 is fixedly connected to the second pushing plate 212, and the first cross rod 2213 and the second cross rod 2313 are staggered in the vertical direction. When the first threaded sleeve 22 is rotated, the first threaded sleeve 22 rotates to drive the first transmission rod 221 to move, the first transmission rod 221 drives the two first pushing plates 211 to move relatively, similarly, when the second threaded sleeve 23 is rotated, the second threaded sleeve 23 rotates to drive the second transmission rod 231 to move, the second transmission rod 231 drives the two second pushing plates 212 to move relatively, and when the first pushing plate 211 abuts against the concrete test piece and the two second pushing plates 212 abut against the concrete test piece, the center point of the concrete test piece is opposite to the center point of the base plate 11.
Referring to fig. 3, an L-shaped first sliding slot 222 is formed in the position of the centering plate 2 located on the first transmission rod 221, an L-shaped second sliding slot 232 is formed in the position of the centering plate 2 located on the second transmission rod 231, the first transmission rod 221 slides in the first sliding slot 222, and the second transmission rod slides in the second sliding slot 232.
Referring to fig. 4, rubber anti-slip pads 224 are sleeved on the outer walls of the first threaded sleeve 22 and the second threaded sleeve 23. Rubber skid pads 224 are beneficial to reduce the occurrence of slippage when the experimenter rotates the first threaded sleeve 22 and the second threaded sleeve 23.
The two ends of the first threaded sleeve 22 and the second threaded sleeve 23 are rotatably connected with a limiting ring 223, a supporting plate 2231 is fixedly connected to the limiting ring 223, and the supporting plate 2231 is fixedly connected to the centering plate 2. A support plate 2231 and a limit ring 223 are provided to support the first thread bush 22 and the second thread bush 23, so that the first thread bush 22 and the second thread bush 23 are more stable in structure
Referring to fig. 5, four aligning plates 25 are fixedly connected to the outer side wall of the aligning plate 2, a sliding groove 251 is formed in one surface, close to the aligning plate 2, of the aligning plate 25, a wedge-shaped aligning block 2511 is slidably connected in the sliding groove 251, the lower end face of the aligning block 2511 faces the base plate 11, a strip-shaped through groove 252 is formed in the position, located in the sliding groove 251, of the aligning plate 2, a moving protruding block 2512 protrudes from the aligning block 2511, and the moving protruding block 2512 penetrates through the strip-shaped through groove 252. After the centering plate 2 is placed on the base plate 11, the moving protrusion 2512 is shifted to enable the moving protrusion 2512 to move along the strip-shaped through groove 252, the moving protrusion 2512 drives the aligning block 2511 to move, the aligning block 2511 slides out of the sliding groove 251, the four aligning plates 25 respectively slide out to enable the centering plate 2 to be right opposite to the base plate 11, and the wedge-shaped aligning block 2511 is convenient for the aligning block 2511 to slide out of the sliding groove 251.
Two first spacing holes 2513 are formed in the alignment block 2511, two second spacing holes 253 with the same size as the first spacing holes 2513 are formed in the alignment plate 25, two third spacing holes 24 with the same size as the first spacing holes 2513 are formed in the backing plate 11, the vertical distance between the second spacing holes 253 and the third spacing holes 24 is equal to the length of the strip-shaped through groove 252, the distance between the two first spacing holes 2513 is equal to the two second spacing holes 253 and the two third spacing holes 24, and the first spacing holes 2513 are penetrated with spacing pins 2514. When the alignment block 2511 is located in the sliding groove 251, the first limiting hole 2513 is just opposite to the second limiting hole 253, the limiting pin 2514 penetrates through the first limiting hole 2513 and the second limiting hole 253, so that the alignment block 2511 is locked at an initial position, when the alignment plate 2 is used, the limiting pin 2514 is taken out, after the alignment block 2511 slides out of the sliding groove 251, the first limiting hole 2513 is just opposite to the second limiting hole 253, the limiting pin 2514 penetrates through the first limiting hole 2513 and the third limiting hole 24 so that the alignment block 2511 is locked, and the locking operation is convenient in the above mode.
Two placing rings 254 are fixedly connected to the outer side wall of the aligning plate 25, a pin cap 25141 is arranged at one end of the limit pin 2514, and the inner diameter of the placing ring 254 is larger than the outer diameter of the limit pin 2514 and smaller than the outer diameter of the pin cap 25141. When the stop pin 2514 is taken out, the stop pin 2514 is placed in the placing ring 254, so that the stop pin 2514 is not easy to lose.
The implementation principle of the embodiment is as follows:
when the centering device for the concrete sample compressive strength test is used, the centering plate 2 is placed on the base plate 11, four sides of the centering plate are aligned with the base plate 11, the limiting pin 2514 is taken out and hung in the placing ring 254, the moving lug 2512 is stirred to enable the moving lug 2512 to move along the strip-shaped through groove 252, the moving lug 2512 drives the aligning block 2511 to move, the aligning block 2511 slides out of the sliding groove 251 to the first limiting hole 2513 to be aligned with the third limiting hole 24, the limiting pin 2514 penetrates through the first limiting hole 2513 and the third limiting hole 24 to enable the aligning block 2511 to be locked, and after the four aligning blocks 2511 are locked, the centering plate 2 is aligned with the base plate 11.
Then place the concrete test piece inside centering plate 2, rotatory first thread bush 22, first threaded rod 2211 removes, first threaded rod 2211 drives first montant 2212 and removes, first montant 2212 drives first horizontal pole 2213 and removes, first horizontal pole 2213 drives two first slurcam 211 relative movement to two first slurcam 211 and concrete test piece butt, then rotatory second thread bush 23, when second thread bush 23 pivoted, second threaded rod 2311 removes, second threaded rod 2311 drives second montant 2312 and removes, second montant 2312 drives second horizontal pole 2313 and removes, second horizontal pole 2313 drives two second slurcam 212 relative movement to two second slurcam 212 and concrete test piece butt, the concrete central point is just right to the test piece with backing plate 11 central point this moment.
Then, the first threaded rod 2211 and the second threaded rod 2311 are rotated in the opposite directions until the first pushing plate 211 and the second pushing plate 212 are separated from abutting, then the four limiting pins 2514 are taken out respectively and hung in the placing ring 254, the moving lug 2512 is shifted to enable the moving lug 2512 to move along the strip-shaped through groove 252, the moving lug 2512 drives the alignment block 2511 to move, the alignment block 2511 slides in the sliding groove 251 until the first limiting hole 2513 and the second limiting hole 253 face each other, the limiting pin 2514 penetrates through the first limiting hole 2513 and the second limiting hole 253 to enable the alignment block 2511 to be locked, the alignment plate 2 is taken down from the base plate 11, and the press machine is started for testing.
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 sample compressive strength test's centering device, includes press body (1), be provided with backing plate (11), its characterized in that on press body (1): be equipped with hollow centering plate (2) on backing plate (11), hollow position of centering plate (2) is equipped with two first catch plates (211) of relative setting and two second catch plates (212) of relative setting, the straight line at the length direction place of first catch plate (211) and second catch plate (212) encloses into the rectangle, be equipped with the adjustment two on centering plate (2) first driving piece (20) and the adjustment two of distance between first catch plate (211) second driving piece (21) of distance between second catch plate (212), first driving piece (20) including rotate connect in first thread bush (22) on centering plate (2), the axis direction perpendicular to of first thread bush (22) first catch plate (211), first thread bush (22) inner wall is provided with levogyration internal thread and internal thread along length direction from the interrupted division respectively, first thread bush (22) both ends respectively threaded connection have first drive rod (221), first drive rod (221) including with first thread bush (22) screw-thread fit's first threaded rod (2211), fixed connection are in first threaded rod (2211) keep away from first montant (2212) and the fixed connection of the vertical setting of the one end of first thread bush (22) first montant (2212) keep away from the one end of first thread bush (22) with first threaded rod (2211) parallel horizontal pole (2213) of axis, first horizontal pole (2213) with first slurcam (211) fixed connection, second driving piece (21) including rotate connect in second thread bush (23) on centering plate (2), the axis direction of second thread bush (23) is perpendicular to second slurcam (212), second thread bush (23) inner wall is followed length direction and is interrupted and is provided with levogyration internal thread and dextrorotation internal thread and internal thread respectively Two ends of the second thread sleeve (23) are respectively connected with a second transmission rod (231) in a threaded manner, the second transmission rod (231) comprises a second threaded rod (2311) in threaded fit with the second threaded sleeve (23), a second vertical rod (2312) which is fixedly connected to one end, far away from the second threaded sleeve (23), of the second threaded rod (2311) and is vertically arranged, and a second cross rod (2313) which is fixedly connected to one end, far away from the second threaded sleeve (23), of the second vertical rod (2312) and is parallel to the axis of the second threaded rod (2311), the second cross bar (2313) is fixedly connected with the second pushing plate (212), the first rail (2213) is vertically offset from the second rail (2313), the centering plate (2) is provided with a first sliding chute (222) matched with the first transmission rod (221) to move and a second sliding chute (232) matched with the second transmission rod (231) to move.
2. The centering device for the compression strength test of the concrete specimen according to claim 1, characterized in that: first thread bush (22) and second thread bush (23) both ends are rotated and are connected with spacing ring (223), fixedly connected with backup pad (2231) on spacing ring (223), backup pad (2231) fixed connection be in on centering plate (2).
3. The centering device for the compression strength test of the concrete specimen according to claim 1, characterized in that: the alignment plate is characterized in that four alignment plates (25) are fixedly connected to the outer side wall of the alignment plate (2), a sliding groove (251) is formed in one face, close to the alignment plate (2), of the alignment plate (25), a alignment block (2511) is connected in the sliding groove (251) in a sliding mode, a strip-shaped through groove (252) is formed in the position, located in the sliding groove (251), of the alignment plate (2), a moving lug (2512) protrudes from the alignment block (2511), and the moving lug (2512) penetrates through the strip-shaped through groove (252).
4. The centering device for the compression strength test of the concrete specimen according to claim 3, characterized in that: the alignment block (2511) is wedge-shaped, and the lower end face of the alignment block (2511) faces the base plate (11).
5. The centering device for the compression strength test of the concrete specimen according to claim 3, characterized in that: two first limiting holes (2513) are formed in the alignment block (2511), two second limiting holes (253) with the same aperture as the first limiting holes (2513) are formed in the alignment plate (25), two third limiting holes (24) with the same aperture as the first limiting holes (2513) are formed in the backing plate (11), the distance between the second limiting holes (253) and the third limiting holes (24) in the vertical direction is equal to the length of the strip-shaped through groove (252), the distance between the two first limiting holes (2513) is equal to the distance between the two second limiting holes (253) and the two third limiting holes (24), and limiting pins (2514) penetrate through the first limiting holes (2513).
6. The centering device for the compression strength test of the concrete specimen according to claim 5, characterized in that: two placing rings (254) are fixedly connected to the outer side wall of the aligning plate (25), a pin cap (25141) is arranged at one end of the limiting pin (2514), and the inner diameter of the placing ring (254) is larger than the outer diameter of the limiting pin (2514) and smaller than the outer diameter of the pin cap (25141).
7. The centering device for the compression strength test of the concrete specimen according to claim 1, characterized in that: and rubber anti-skid pads (224) are sleeved on the outer walls of the first threaded sleeve (22) and the second threaded sleeve (23).
8. The centering device for the compression strength test of the concrete specimen according to claim 1, characterized in that: rubber protection pads (213) are fixedly connected to the mutually opposite surfaces of the two first pushing plates (211) and the two second pushing plates (212).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921587939.7U CN210719961U (en) | 2019-09-23 | 2019-09-23 | Experimental centering device of concrete sample compressive strength |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921587939.7U CN210719961U (en) | 2019-09-23 | 2019-09-23 | Experimental centering device of concrete sample compressive strength |
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| Publication Number | Publication Date |
|---|---|
| CN210719961U true CN210719961U (en) | 2020-06-09 |
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| CN201921587939.7U Active CN210719961U (en) | 2019-09-23 | 2019-09-23 | Experimental centering device of concrete sample compressive strength |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115931549A (en) * | 2022-10-17 | 2023-04-07 | 山东润鲁建筑材料检测技术服务有限公司 | Method for measuring compressive strength of rock |
| CN116359029A (en) * | 2023-06-01 | 2023-06-30 | 扬州市润泰工程质量检测有限公司 | Building material compressive strength detection device |
-
2019
- 2019-09-23 CN CN201921587939.7U patent/CN210719961U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115931549A (en) * | 2022-10-17 | 2023-04-07 | 山东润鲁建筑材料检测技术服务有限公司 | Method for measuring compressive strength of rock |
| CN116359029A (en) * | 2023-06-01 | 2023-06-30 | 扬州市润泰工程质量检测有限公司 | Building material compressive strength detection device |
| CN116359029B (en) * | 2023-06-01 | 2023-08-01 | 扬州市润泰工程质量检测有限公司 | Building material compressive strength detection device |
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