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CN-224216701-U - Concrete slump detection device

CN224216701UCN 224216701 UCN224216701 UCN 224216701UCN-224216701-U

Abstract

The utility model relates to a concrete slump detection device which is arranged on a slump cone and comprises a limit assembly, a tamping rod and a limit nut, wherein the limit assembly is clamped at the mouth of the slump cone, the limit assembly comprises a limit round cover and a limit ring which are coaxially and fixedly connected inside and outside, a spiral through groove is formed in the top surface of the limit round cover, the lower end of the tamping rod penetrates through the spiral through groove and stretches into the slump cone, the tamping rod can conveniently move along the spiral through groove, the length of the tamping rod is longer than the height of the slump cone, three sections of external threads are arranged at intervals above and below the tamping rod, the limit nut is connected with the three sections of external threads in sequence, and the limit nut is downwards abutted to the top surface of the limit round cover, so that the tamping rod is prevented from continuously moving downwards and the insertion depth of the tamping rod is limited. The utility model can uniformly insert and smash the cross section of each layer of concrete, can control the insert and smash depth and ensure that the upper layer of concrete and the lower layer of concrete are fully combined.

Inventors

  • SONG XIAODONG
  • SUN YANYANG
  • XING PENG
  • ZHANG MINGKE
  • ZHANG PENG

Assignees

  • 安阳市产品质量检验检测中心

Dates

Publication Date
20260508
Application Date
20250526

Claims (7)

  1. 1. The concrete slump detection device is arranged on a slump barrel (1) and is characterized by comprising a limiting component (2), a tamping rod (3) and a limiting nut (4), wherein the limiting component (2) is clamped at the barrel opening of the slump barrel (1), and the limiting component (2) comprises a limiting round cover (21) and a limiting ring (22) which are coaxially and fixedly connected inside and outside; The top surface of the limiting round cover (21) is provided with a spiral through groove (6), the lower end of the tamper (3) penetrates through the spiral through groove (6) and stretches into the slump cone (1), and the length of the tamper (3) is larger than the height of the slump cone (1); The tamper is characterized in that three sections of external threads (9) are arranged at intervals up and down of the tamper (3), the tamper (3) above the limiting round cover (21) is further provided with the limiting nut (4), the limiting nut (4) is sequentially connected with the three sections of external threads (9), and the limiting nut (4) is downwards abutted to the top surface of the limiting round cover (21).
  2. 2. The concrete slump detection device according to claim 1, wherein the limit dome (21) is a circular cap body, the diameter of the limit dome (21) is consistent with the diameter of the nozzle of the slump cone (1), and the limit dome (21) is inserted into the nozzle of the slump cone (1) downwards.
  3. 3. The concrete slump detection device according to claim 2, wherein the thickness of the limiting ring (22) is smaller than that of the limiting round cover (21), the diameter of the limiting ring (22) is larger than that of the barrel opening of the slump barrel (1), and the barrel opening of the slump barrel (1) is abutted to the joint of the limiting ring (22) and the limiting round cover (21).
  4. 4. The concrete slump detection device according to claim 2, wherein a plurality of stabilizing plates (5) are arranged below the limiting rings (22) in the circumferential direction, gaps exist between the stabilizing plates (5) and the outer ring surface of the limiting round cover (21), and the stabilizing plates (5) are abutted to the outer wall of the slump cone (1).
  5. 5. The concrete slump detection device according to claim 1, wherein the inner end of the spiral through groove (6) is positioned at the center of the limit round cover (21), the outer end of the spiral through groove (6) extends to the edge of the limit round cover (21) in a spiral mode, and the spiral through groove (6) penetrates through the top surface of the limit round cover (21).
  6. 6. The concrete slump detection device according to claim 1, wherein the width of the spiral through groove (6) is larger than the diameter of the rammer rod (3), the upper end of the rammer rod (3) is further sleeved with a handle sleeve (7), the limiting round cover (21) is provided with a plurality of positioning lines (8), and the positioning lines (8) are uniformly distributed along the spiral through groove (6).
  7. 7. The concrete slump detection device according to claim 6, characterized in that the number of the positioning lines (8) is 25.

Description

Concrete slump detection device Technical Field The utility model relates to the technical field of slump detection, in particular to a concrete slump detection device. Background The slump cone is used for measuring the slump of concrete, and in the concrete operation, the concrete sample which is stirred is uniformly filled into the slump cone in three layers, so that the height of each layer of concrete after tamping is about one third of the height of the slump cone. The tamping operation of each layer of concrete needs to be performed by a tamping rod for 25 times, and it is noted that the tamping should be performed from outside to center along the spiral direction, that is, from the edge of the slump cone to the center, and each tamping should be uniformly distributed on the section. And when the upper layer concrete is inserted and smashed, the tamping rod is inserted through the layer to a position about 20-30mm below the layer, so that the depth of insertion and smashing is ensured, and the upper layer concrete and the lower layer concrete are fully combined. Due to the differences in manual interpolation, it may be difficult to interpolate 25 times uniformly across each layer of concrete cross-section. In addition, the insertion depth of the other two layers except the bottom layer concrete is difficult to ensure, and the lower layer is possibly inserted too shallow or too deep, so that the upper and lower layers of concrete are combined insufficiently, and the accuracy of slump tests is affected. Disclosure of Invention The utility model provides a concrete slump detection device, which aims to solve the problem that the manual tamping depth is difficult to grasp, a limit component is added above a slump cylinder, simultaneously, three sections of external threads are arranged on the tamper, the nut and the external threads are matched in sequence, and the nut is propped against the limiting assembly when the tamper is downwards inserted and tamped, so that the tamper is prevented from being inserted too deeply or too shallowly. In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: The concrete slump detection device is arranged on the slump barrel and comprises a limiting assembly, a tamping rod and a limiting nut, wherein the limiting assembly is clamped at the position of the mouth of the slump barrel, the mounting stability of the limiting assembly is improved, the limiting assembly comprises a limiting round cover and a limiting ring which are coaxially and fixedly connected inside and outside, and the integral structure has the characteristic of high strength; The top surface of the limiting round cover is provided with a spiral through groove, the lower end of the tamper penetrates through the spiral through groove and stretches into the slump cone, so that the tamper can conveniently move along the spiral through groove, and the length of the tamper is larger than the height of the slump cone; The tamper is provided with three sections of external screw threads at intervals from top to bottom, is located still be provided with on the tamper of spacing circular lid top stop nut in proper order with three sections external screw thread connection, stop nut downward butt is at spacing circular lid top surface, has prevented that the tamper from continuing to move down, has restricted the degree of depth of insertion of tamper. Further, the limiting round cover is a round cover body, the diameter of the limiting round cover is consistent with the diameter of the slump barrel opening, and the limiting round cover is inserted into the slump barrel opening downwards. The stability of spacing subassembly joint has been improved, spacing subassembly horizontal migration is avoided. Further, the thickness of the limiting ring is smaller than that of the limiting round cover, the diameter of the limiting ring is larger than that of the slump barrel opening, and the slump barrel opening is abutted to the joint of the limiting ring and the limiting round cover. The limiting component is conveniently supported by the slump cone. Further, a plurality of stabilizing plates are arranged in the circumferential direction below the limiting ring, gaps exist between the stabilizing plates and the outer ring surface of the limiting circular cover, and the stabilizing plates are abutted to the outer wall of the slump cone. The stability of spacing subassembly installation has been improved, and spacing subassembly is avoided rocking. Further, the inner end of the spiral through groove is positioned at the center of the limit round cover, the outer end of the spiral through groove extends to the edge of the limit round cover in a spiral mode, and the spiral through groove penetrates through the top surface of the limit round cover. The tamping rod is convenient to penetrate through the limiting round cover and move between the center and the edge of the limiting