CN117213990B - Concrete prefabricated member compressive resistance detection equipment - Google Patents
Concrete prefabricated member compressive resistance detection equipment Download PDFInfo
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- CN117213990B CN117213990B CN202311452998.4A CN202311452998A CN117213990B CN 117213990 B CN117213990 B CN 117213990B CN 202311452998 A CN202311452998 A CN 202311452998A CN 117213990 B CN117213990 B CN 117213990B
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- 239000004567 concrete Substances 0.000 title claims abstract description 33
- 238000001514 detection method Methods 0.000 title claims abstract description 23
- 238000012360 testing method Methods 0.000 claims abstract description 52
- 230000001360 synchronised effect Effects 0.000 claims description 19
- 210000001503 joint Anatomy 0.000 claims description 9
- 239000011178 precast concrete Substances 0.000 claims description 5
- 238000009417 prefabrication Methods 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 5
- 238000003491 array Methods 0.000 claims 1
- 230000002457 bidirectional effect Effects 0.000 abstract description 16
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 230000006835 compression Effects 0.000 abstract description 6
- 238000007906 compression Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 238000003032 molecular docking Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention belongs to the technical field of compression testing, in particular to a concrete prefabricated member compression resistance detection device, which comprises a base, wherein a plurality of telescopic columns are fixed at the top of the base, a top frame is fixed at the top ends of the telescopic columns, a hydraulic cylinder is fixedly penetrated on the top frame, a testing plate is connected with an output shaft of the hydraulic cylinder, a pressure sensor is installed at the top of the testing plate, an adjusting frame is fixed at the top of the base, a pair of adjusting grooves are formed in the adjusting frame, an adjusting block is connected in the adjusting grooves in a sliding manner, a connecting rod is fixed at the front end of the adjusting block, an arc-shaped clamping plate is fixed at the front end of the connecting rod, a bidirectional screw is rotatably connected between the two adjusting grooves, and the bidirectional screw is in threaded connection with the adjusting block. According to the invention, when the test board moves downwards, the transmission assembly drives the bidirectional screw rod to rotate, so that the two groups of clamping plates move towards the middle, and one clamping plate pushes the prefabricated member to move towards the middle position until the prefabricated member is clamped between the two clamping plates, so that the coaxiality of the prefabricated member and the hydraulic cylinder is ensured.
Description
Technical Field
The invention relates to the technical field of compression testing, in particular to a concrete prefabricated member compression resistance detection device.
Background
Concrete component prefabrication is the prefabrication of concrete parts for making buildings or structures in factories or construction sites. The prefabricated concrete member is adopted for assembly construction, and the prefabricated concrete member has the advantages of saving labor force, overcoming seasonal influence, being convenient for construction throughout the year and the like. The popularization and use of precast concrete members are one of the important ways for realizing the industrialization of the building.
Generally when carrying out the resistance to compression to the concrete prefab of cylinder structure and examining, need place the prefab in the bottom of test board, later make test board and prefab laminating through the pneumatic cylinder, and the axis of the very easy appearance cylindrical concrete prefab is inconsistent with the axis of pneumatic cylinder when placing cylindrical concrete prefab, and the clamp plate is easy to be pressed at the edge position of cylindrical concrete prefab this moment, just can lead to the concrete prefab to cause the testing result to cause the deviation because of the atress is uneven this moment, consequently makes corresponding improvement to this problem.
Disclosure of Invention
Based on the technical problems existing in the prior art, the invention provides a concrete prefabricated member pressure resistance detection device.
The invention provides a concrete prefabricated member pressure resistance detection device which comprises a base, wherein a plurality of telescopic columns are fixed at the top of the base, the top ends of the telescopic columns are fixedly provided with a same top frame, a hydraulic cylinder is fixedly penetrated on the top frame, an output shaft of the hydraulic cylinder is connected with a test plate, a pressure sensor positioned below the hydraulic cylinder is installed at the top of the test plate, an adjusting frame is fixedly arranged at the top of the base, a pair of adjusting grooves are formed in the adjusting frame, an adjusting block is connected in a sliding manner in the adjusting grooves, a connecting rod is fixedly arranged at the front end of the adjusting block, an arc-shaped clamping plate is fixedly arranged at the front end of the connecting rod, the same two-way screw is connected between the two adjusting grooves in a rotating manner, the two-way screw is in threaded connection with the adjusting block, the prefabricated member is placed on the base, the output shaft of the hydraulic cylinder drives the test plate to move downwards until the test plate is pressed on the prefabricated member, and when the test plate moves downwards, the two-way screw is driven by a transmission assembly to rotate, so that the two groups of adjusting blocks, the connecting rod and the clamping plate synchronously move towards the middle until the prefabricated member is clamped between the two clamping plates.
Preferably, the transmission assembly comprises a first rack fixedly sleeved on the output shaft of the hydraulic cylinder, a first gear is fixedly sleeved on the bidirectional screw rod, and the first rack is meshed with the first gear.
Preferably, the telescopic column comprises an inner rod and a sleeve rod, the inner rod is fixed on the base, the sleeve rod is fixed at the bottom of the top frame, the sleeve rod is sleeved at the top end of the inner rod, the same cross rod is fixedly sleeved between the two sleeve rods at the same side, an adjusting screw is connected to the cross rod in a threaded manner, and the bottom end of the adjusting screw is rotationally connected with the base.
Preferably, the base is provided with a cross opening, and a sliding plate which is transversely arranged is inserted in the cross opening.
Preferably, sockets are formed in two sides of the sliding plate, anti-falling blocks are inserted into the sockets, and the cross section of each anti-falling block is L-shaped.
Preferably, a plurality of transverse uniformly distributed roll shafts positioned below the sliding plate are rotationally connected to the cross opening, and the sliding plate and the roll shafts form rolling contact.
Preferably, the top of the sliding plate is provided with a disc capable of rotating around the axis of the sliding plate, the top of the disc is provided with a placement groove, the circumferential outer wall of the disc is provided with a plurality of annular array distributed tooth blocks, the top of the base is provided with a sliding opening, a second rack is connected in a sliding manner in the sliding opening, and the second rack is meshed with the tooth blocks.
Preferably, the top of the second rack is fixedly provided with a third rack, the adjusting frame is rotationally connected with a shaft lever positioned below the bidirectional screw rod, the shaft lever and the bidirectional screw rod are fixedly sleeved with synchronous wheels, the same synchronous belt is sleeved between the two synchronous wheels, the end part of the shaft lever is connected with a second gear through a one-way bearing, and the second gear is meshed with the third rack.
Preferably, the top of the sliding plate is provided with a butt joint groove, and the disc is inserted into the butt joint groove through a butt joint post positioned at the bottom of the disc.
Compared with the prior art, the invention provides the concrete prefabricated member compressive resistance detection equipment, which has the following beneficial effects:
1. the utility model provides a concrete prefab compressive capacity check out test set, through setting up splint, place the prefab on the base, start the pneumatic cylinder, the pneumatic cylinder output shaft drives the test board and moves down until pressing on the prefab, this in-process, drive bi-directional screw through drive assembly when the test board moves down and rotate for two sets of regulating blocks, connecting rod and splint remove to the centre in step, one of them splint can promote the prefab to the intermediate position removal, until the prefab is by the centre gripping between two splint, because two curved splint have formed centre gripping to the prefab, just so make the final position of prefab coaxial relatively with the pneumatic cylinder, thereby guarantee the prefab atress even at compressive testing in-process.
2. The utility model provides a concrete prefab compressive capacity check out test set, through setting up drive assembly, synchronous drive first rack removes when pneumatic cylinder output shaft moves down, and first rack meshing drives first gear rotation, and first gear synchronous drive bi-directional screw rotates.
3. The utility model provides a concrete prefab compressive capacity check out test set, through setting up flexible post, when examining the prefab of different diameters, can be through rotating adjusting screw for the horizontal pole drives loop bar and roof-rack and reciprocates along the axial of interior pole, thereby adjusts the initial height of test board, with the clamp plate can be with the prefab centre gripping earlier, and first rack and first gear just break away from the meshing rotation this moment, and then test board continues to move down until pressing on the prefab, and this in-process clamp plate can not continue to press from both sides tightly.
4. The precast concrete piece compressive capacity check out test set through setting up the slide, places the slide with the prefab on, when splint promote the prefab, the prefab just can follow the slide and remove together to avoid directly taking place sliding friction between prefab and the base, thereby reduce the resistance that receives when splint remove, and be provided with the anticreep piece, can prevent effectively that slide lateral shifting is excessive through the anticreep piece, and when the installation, only need insert the anticreep piece from the socket can, and be provided with the roller, just so can form rolling friction between slide and the roller, thereby further reduce the resistance that receives when splint remove.
5. The precast concrete piece compressive capacity check out test set through setting up the disc, when detecting, places the disc with the prefab on, after once detecting, can drive tooth piece and disc rotation through removing the second rack, and the second rack meshing just so can adjust the angle of prefab, then repeatedly detect again to effectively improve the degree of accuracy of testing result, and insert the butt joint post in the butt joint inslot, just realized the installation to the disc, make its easy dismounting.
6. The concrete prefabricated member pressure resistance detection equipment comprises a second gear, wherein when a bidirectional screw rod rotates, a shaft lever is driven to rotate through transmission cooperation of a synchronous belt and two synchronous wheels, a one-way bearing is in a locking state, the shaft lever can synchronously drive the second gear to rotate, the second gear is meshed with a third rack and the second rack to move forwards together, otherwise, when a test plate resets upwards and moves, the second rack does not move, so that when the next test is repeated, the prefabricated member rotates, and angle conversion is realized.
Drawings
FIG. 1 is a schematic view of a first angle structure of a concrete precast member compressive capacity detection device according to the present invention;
fig. 2 is a schematic diagram of a second angle structure of the concrete prefabricated member pressure resistance detecting device according to the present invention;
fig. 3 is a schematic diagram of a first rack mounting structure of the concrete prefabricated member compressive capacity detection device provided by the invention;
fig. 4 is a schematic diagram of a clamping plate installation structure of the concrete prefabricated member compressive capacity detection device provided by the invention;
fig. 5 is a schematic view of the bottom structure of a base of the concrete prefabricated member pressure resistance detection device according to the present invention;
FIG. 6 is a schematic diagram of the top structure of a base of the concrete precast element compressive capacity detection device according to the present invention;
fig. 7 is a schematic diagram of an installation structure between an adjusting frame and a base of the concrete prefabricated member compressive capacity detection device provided by the invention;
fig. 8 is a schematic diagram of an installation structure between a disc and a slide plate of the concrete precast element compressive capacity detection device.
In the figure: 1. a base; 2. a top frame; 3. a hydraulic cylinder; 4. a test board; 5. a pressure sensor; 6. an adjusting frame; 7. an adjustment tank; 8. an adjusting block; 9. a connecting rod; 10. a clamping plate; 11. a bidirectional screw; 12. a first gear; 13. a first rack; 14. an inner rod; 15. a loop bar; 16. a cross bar; 17. adjusting a screw; 18. a cross opening; 19. a slide plate; 20. a roll shaft; 21. an anti-falling block; 22. a socket; 23. a disc; 24. a sliding port; 25. a second rack; 26. tooth blocks; 27. a shaft lever; 28. a synchronizing wheel; 29. a synchronous belt; 30. a second gear; 31. a third rack; 32. a placement groove; 33. a butt joint groove; 34. and (5) butting columns.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Examples
Referring to fig. 1-8, the concrete precast member compressive capacity detecting device comprises a base 1, a plurality of telescopic columns are fixed at the top of the base 1, the top ends of the telescopic columns are fixed with a same top frame 2, a hydraulic cylinder 3 is fixedly penetrated on the top frame 2, an output shaft of the hydraulic cylinder 3 is connected with a test board 4, a pressure sensor 5 positioned below the hydraulic cylinder 3 is installed at the top of the test board 4, an adjusting frame 6 is fixed at the top of the base 1, a pair of adjusting grooves 7 are arranged on the adjusting frame 6, an adjusting block 8 is slidably connected in the adjusting grooves 7, a connecting rod 9 is fixed at the front end of the adjusting block 8, an arc-shaped clamping plate 10 is fixed at the front end of the connecting rod 9, a same two-way screw 11 is rotatably connected between the two adjusting grooves 7, the two-way screw 11 is in threaded connection with the adjusting block 8, the prefabricated part is placed on the base 1, the hydraulic cylinder 3 is started, the output shaft of the hydraulic cylinder 3 drives the test plate 4 to move downwards until being pressed on the prefabricated part, in the process, the test plate 4 drives the bidirectional screw rod 11 to rotate through the transmission component when moving downwards, so that the two groups of adjusting blocks 8, the connecting rod 9 and the clamping plates 10 synchronously move towards the middle, one clamping plate 10 can push the prefabricated part to move towards the middle position until the prefabricated part is clamped between the two clamping plates 10, and the two arc-shaped clamping plates 10 form centering clamping on the prefabricated part, so that the final position of the prefabricated part is coaxially opposite to the hydraulic cylinder 3, and the stress uniformity of the prefabricated part in the compression-resistant test process is ensured.
Further, the transmission assembly comprises a first rack 13 fixedly sleeved on the output shaft of the hydraulic cylinder 3, a first gear 12 is fixedly sleeved on the bidirectional screw 11, the first rack 13 is in meshed connection with the first gear 12, the first rack 13 is synchronously driven to move when the output shaft of the hydraulic cylinder 3 moves downwards, the first rack 13 is meshed to drive the first gear 12 to rotate, and the first gear 12 synchronously drives the bidirectional screw 11 to rotate.
Further, the telescopic column comprises an inner rod 14 and a sleeve rod 15, the inner rod 14 is fixed on the base 1, the sleeve rod 15 is fixed at the bottom of the top frame 2, the sleeve rod 15 is sleeved at the top end of the inner rod 14, the same cross rod 16 is fixedly sleeved between the two sleeve rods 15 on the same side, an adjusting screw 17 is connected to the cross rod 16 in a threaded mode, the bottom end of the adjusting screw 17 is rotationally connected with the base 1, when prefabricated members with different diameters are detected, the cross rod 16 can drive the sleeve rod 15 and the top frame 2 to move up and down along the axial direction of the inner rod 14 through rotating the adjusting screw 17, so that the initial height of the test plate 4 is adjusted, the prefabricated members can be clamped in the middle by the clamp plate 10, at the moment, the first rack 13 and the first gear 12 are just separated from meshing rotation, the test plate 4 continues to move downwards until being pressed on the prefabricated members, and the clamp plate 10 cannot be clamped continuously in the process.
Further, a cross opening 18 is formed in the base 1, a sliding plate 19 which is transversely arranged is inserted in the cross opening 18, the prefabricated part is placed on the sliding plate 19, and when the clamping plate 10 pushes the prefabricated part, the prefabricated part can move along with the sliding plate 19, so that sliding friction between the prefabricated part and the base 1 is avoided, and resistance to movement of the clamping plate 10 is reduced.
Furthermore, the sockets 22 are formed in the two sides of the sliding plate 19, the anti-falling blocks 21 are inserted into the sockets 22, the cross section of each anti-falling block 21 is L-shaped, the sliding plate 19 can be effectively prevented from moving excessively transversely through the anti-falling blocks 21, and in mounting, the anti-falling blocks 21 are only required to be inserted from the sockets 22, so that the anti-falling plate is convenient to mount and dismount.
Further, a plurality of roller shafts 20 which are transversely and uniformly distributed and positioned below the sliding plate 19 are rotationally connected to the cross opening 18, and the sliding plate 19 and the roller shafts 20 form rolling contact, so that rolling friction is formed between the sliding plate 19 and the roller shafts 20, and resistance to movement of the clamping plate 10 is further reduced.
Further, the top of the slide plate 19 is provided with a disc 23 capable of rotating around the axis of the slide plate, the top of the disc 23 is provided with a placement groove 32, the circumferential outer wall of the disc 23 is provided with a plurality of annular array distributed tooth blocks 26, the top of the base 1 is provided with a slide opening 24, a second rack 25 is connected in a sliding manner in the slide opening 24, the second rack 25 is meshed with the tooth blocks 26, when the detection is finished, a prefabricated member is placed on the disc 23, after the detection is finished once, the second rack 25 is moved, the second rack 25 is meshed to drive the tooth blocks 26 and the disc 23 to rotate, so that the angle of the prefabricated member can be adjusted, and then the detection is repeated again, thereby effectively improving the accuracy of the detection result.
Further, the top of the second rack 25 is fixed with a third rack 31, the adjusting frame 6 is rotationally connected with a shaft lever 27 located below the bidirectional screw 11, the shaft lever 27 and the bidirectional screw 11 are fixedly sleeved with synchronous wheels 28, the same synchronous belt 29 is sleeved between the two synchronous wheels 28, the end part of the shaft lever 27 is connected with a second gear 30 through a one-way bearing, the second gear 30 is meshed with the third rack 31, when the bidirectional screw 11 rotates, the shaft lever 27 is driven to rotate through the transmission fit of the synchronous belt 29 and the two synchronous wheels 28, at the moment, the one-way bearing is in a locking state, the shaft lever 27 can synchronously drive the second gear 30 to rotate, the second gear 30 is meshed to drive the third rack 31 and the second rack 25 to move forwards together, otherwise, when the test board 4 is reset upwards, the second rack 25 does not move, therefore, when the next test is repeated, the prefabricated member rotates, and angle conversion is realized.
Further, the top of the sliding plate 19 is provided with a docking slot 33, the disc 23 is inserted into the docking slot 33 through a docking post 34 positioned at the bottom of the disc 23, and the docking post 34 is inserted into the docking slot 33, so that the disc 23 is mounted and dismounted conveniently.
Working principle: placing the prefabricated part on a disc 23, starting a hydraulic cylinder 3, enabling an output shaft of the hydraulic cylinder 3 to drive a test plate 4 to move downwards until the test plate is pressed on the prefabricated part, in the process, synchronously driving a first rack 13 to move when the output shaft of the hydraulic cylinder 3 moves downwards, enabling the first rack 13 to be meshed to drive a first gear 12 to rotate, synchronously driving a bidirectional screw 11 to rotate by the first gear 12, enabling two groups of adjusting blocks 8, connecting rods 9 and clamping plates 10 to synchronously move towards the middle, enabling one clamping plate 10 to push the prefabricated part to move towards the middle along with the sliding plate 19 until the prefabricated part is clamped between the two clamping plates 10, and enabling the test plate 4 to continuously move downwards until the test plate is pressed on the prefabricated part, so that the test can be performed;
when the test is carried out for a plurality of times, the bidirectional screw 11 rotates, the shaft lever 27 is driven to rotate through the transmission cooperation of the synchronous belt 29 and the two synchronous wheels 28, at the moment, the unidirectional bearing is in a locking state, the shaft lever 27 can synchronously drive the second gear 30 to rotate, the second gear 30 is meshed with the third rack 31 and the second rack 25 to move forwards together, otherwise, when the test board 4 is reset upwards and moved, the second rack 25 does not move, so that the prefabricated member rotates when the test is repeated for the next time, and the angle conversion is realized;
when detecting the prefabricated members with different diameters, the adjusting screw 17 can be rotated, so that the cross rod 16 drives the loop bar 15 and the top frame 2 to move up and down along the axial direction of the inner rod 14, and the initial height of the test plate 4 is adjusted, so that the clamping plate 10 can clamp the prefabricated members in the middle, at the moment, the first rack 13 and the first gear 12 are just separated from meshing rotation, then the test plate 4 continues to move downwards until being pressed on the prefabricated members, and the clamping plate 10 cannot continue to clamp in the process.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (6)
1. The utility model provides a concrete prefabrication anti-pressure ability check out test set, including base (1), a serial communication port, base (1) top is fixed with a plurality of telescopic columns, the top of a plurality of telescopic columns is fixed with same roof-rack (2), run through on roof-rack (2) and be fixed with pneumatic cylinder (3), pneumatic cylinder (3) output shaft has test board (4), install pressure sensor (5) that are located pneumatic cylinder (3) below test board (4) top, base (1) top is fixed with alignment jig (6), a pair of adjustment tank (7) have been seted up on alignment jig (6), sliding connection has alignment block (8) in alignment jig (7), alignment block (8) front end is fixed with connecting rod (9), the front end of connecting rod (9) is fixed with curved splint (10), rotate between two alignment jig (7) and be connected with same bi-directional screw (11), bi-directional screw (11) and alignment block (8) threaded connection, place the prefabrication on base (1), pneumatic cylinder (3) output shaft drive test board (4) to move down until pressing on the prefabrication board (4), when moving test board (4) and moving down through drive assembly (10) and make two synchronous movement block (8) to synchronous moving down to connecting rod (10), one of them splint (10) can promote the prefab to the intermediate position removal, until the prefab is held between two splint (10), drive assembly includes fixed cover and establishes first rack (13) on pneumatic cylinder (3) output shaft, and fixed cover is equipped with first gear (12) on two-way screw rod (11), first rack (13) and first gear (12) meshing are connected, offer cross opening (18) on base (1), cross opening (18) interpolation is equipped with slide (19) of horizontal setting, slide (19) top is provided with disc (23) that can rotate around its axis, and place groove (32) have been offered at disc (23) top, and disc (23) circumference outer wall is equipped with tooth piece (26) that a plurality of annular arrays distribute, and slide (24) have been seted up at base (1) top, slide (24) sliding connection has second rack (25), second rack (25) and tooth piece (26) meshing are connected, second rack (25) top is fixed with third rack (31), and rotation are connected with on adjusting frame (6) and are located two-way screw rod (27) and are equipped with two-way synchronous set (28) between two screw rod (27) and two-way synchronous cover (28) on two-way screw rod (27), the end part of the shaft lever (27) is connected with a second gear (30) through a one-way bearing, and the second gear (30) is meshed with a third rack (31).
2. The concrete prefabricated member pressure resistance detection device according to claim 1, wherein the telescopic column comprises an inner rod (14) and a sleeve rod (15), the inner rod (14) is fixed on the base (1), the sleeve rod (15) is fixed at the bottom of the top frame (2), the sleeve rod (15) is sleeved at the top end of the inner rod (14), the same cross rod (16) is fixedly sleeved between the two sleeve rods (15) on the same side, an adjusting screw (17) is connected to the cross rod (16) in a threaded mode, and the bottom end of the adjusting screw (17) is connected with the base (1) in a rotating mode.
3. The concrete precast element compressive capacity detection device according to claim 1, wherein a cross opening (18) is formed in the base (1), and a sliding plate (19) which is transversely arranged is inserted into the cross opening (18).
4. The concrete prefabricated member pressure resistance detection device according to claim 1, wherein the two sides of the sliding plate (19) are provided with sockets (22), the sockets (22) are internally provided with anti-drop blocks (21), and the cross section of each anti-drop block (21) is L-shaped.
5. The precast concrete piece compressive capacity testing apparatus as claimed in claim 1, wherein a plurality of roll shafts (20) which are transversely and uniformly distributed and positioned below the slide plate (19) are rotatably connected to the cross opening (18), and the slide plate (19) is in rolling contact with the roll shafts (20).
6. The precast concrete piece compressive capacity detection apparatus as claimed in claim 1, wherein the slide plate (19) is provided with a butt joint groove (33) at the top, and the disk (23) is inserted into the butt joint groove (33) through a butt joint post (34) at the bottom thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311452998.4A CN117213990B (en) | 2023-11-03 | 2023-11-03 | Concrete prefabricated member compressive resistance detection equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311452998.4A CN117213990B (en) | 2023-11-03 | 2023-11-03 | Concrete prefabricated member compressive resistance detection equipment |
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| CN117213990A CN117213990A (en) | 2023-12-12 |
| CN117213990B true CN117213990B (en) | 2024-01-12 |
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| CN115255691A (en) * | 2022-09-20 | 2022-11-01 | 钱建伟 | Laser welding machine capable of achieving rapid clamping and clamping method |
| CN116818506A (en) * | 2023-03-17 | 2023-09-29 | 珠海大横琴城市新中心发展有限公司 | Tunnel lining concrete durability test device |
| CN219915167U (en) * | 2023-04-06 | 2023-10-27 | 王飞 | Detection device based on civil engineering concrete strength experiment |
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