CN219142592U

CN219142592U - Concrete impermeability detection test mould

Info

Publication number: CN219142592U
Application number: CN202223429489.3U
Authority: CN
Inventors: 周蝶
Original assignee: Yichang Guling Commercial Concrete Co ltd
Current assignee: Yichang Guling Commercial Concrete Co ltd
Priority date: 2022-12-20
Filing date: 2022-12-20
Publication date: 2023-06-06
Anticipated expiration: 2032-12-20

Abstract

The utility model belongs to the field of concrete performance detection, and particularly discloses a concrete impermeability detection test mould, which comprises a mould cylinder for placing a concrete test piece and a mounting plate for mounting the mould cylinder, wherein a groove and a water inlet communicated with the groove are formed in the mounting plate; the sealing sleeve is made of elastic rubber, a plurality of sealing strips are fixed on the outer wall of the sealing sleeve along the circumferential direction of the sealing sleeve, and the length direction of the sealing strips is along the axial direction of the sealing sleeve; the inner wall of the mold cylinder is circumferentially fixed with a plurality of supporting plates, the supporting plates are used for being inserted between adjacent sealing strips, the outer sides of the supporting plates are sleeved with sealing bags used for being filled with water or air, and the supporting plates are inserted into the sealing bags and fixed with the sealing bags. By adopting the scheme of the utility model, the problem that the paraffin sealing layer wrapped on the outer wall of the concrete test piece is easy to wear when being put into a test die, so that the sealing effect is poor can be solved.

Description

Concrete impermeability detection test mould

Technical Field

The utility model belongs to the field of concrete performance detection, and particularly relates to a concrete impermeability detection test mold.

Background

The impermeability of concrete refers to the ability of the concrete material to resist penetration by pressurized water, and is the most fundamental factor in determining the durability of concrete. In the prior art, the impermeability detector of concrete is provided with a plurality of test molds on the machine body, and a plurality of concrete test pieces can be detected simultaneously. As shown in fig. 1, the test mold comprises a mounting plate 1 fixed on a machine body and a mold cylinder 4 connected to the mounting plate 1 through bolts, wherein a groove 2 is formed in the mounting plate 1, a water inlet 3 for water injection is formed in the center of the groove 2, a concrete test piece 5 is placed in the mold cylinder 4, the mold cylinder 4 is connected to the mounting plate 1 through bolts, a gap between the mold cylinder 4 and the mounting plate 1 is sealed through a sealing ring, the groove 2 is located under the concrete test piece 5, water is injected into the groove 2 through the water inlet 3, water injection pressure is gradually adjusted, water is stamped to one end of the concrete test piece 5, facing the mounting plate 1, and then whether water seepage exists at the other end of the concrete test piece 5 is observed. In order to avoid water seeping out from between the concrete test piece 5 and the inner wall of the mold cylinder 4, a layer of sealing layer made of paraffin needs to be wrapped on the outer wall of the concrete test piece 5, and then the concrete test piece 5 is pressed into the mold cylinder 4, so that the concrete test piece 5 and the mold cylinder 4 form an interference fit relationship, and the sealing effect of the side wall of the concrete test piece 5 is improved. On the one hand, the sealing mode needs to use a press machine to press the concrete test piece 5 into the die cylinder 4, which is troublesome; on the other hand, the paraffin layer on the outer wall of the concrete test piece 5 is easy to wear when being pressed into the mold cylinder 4, and the sealing effect is affected.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model provides a concrete impermeability detection test die to solve the problems that a press machine is needed to be used for pressing a concrete test piece into a die cylinder, the press machine is troublesome, and a paraffin layer on the outer wall of the concrete test piece is easy to wear when being pressed into the die cylinder, so that the sealing effect is affected.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the concrete impermeability detection test die comprises a die cylinder for placing a concrete test piece and a mounting plate for mounting the die cylinder, wherein a groove and a water inlet hole communicated with the groove are formed in the mounting plate, and the groove is communicated with the inner cavity of the die cylinder; the sealing assembly comprises a sealing sleeve which is sleeved outside the concrete test piece, a plurality of sealing strips are fixed on the outer wall of the sealing sleeve along the circumferential direction of the sealing sleeve, and the length direction of the sealing strips is along the axial direction of the sealing sleeve; the inner wall of the mold cylinder is circumferentially fixed with a plurality of supporting sheets, the supporting sheets are used for being inserted between adjacent sealing strips, the outer sides of the supporting sheets are sleeved with sealing bags used for filling water or air, and the sealing bags are fixed on the inner wall of the mold cylinder; the sealing sleeve, the sealing strip and the sealing bag are made of elastic rubber.

Compared with the prior art, the utility model has the following beneficial effects:

1. through the deformability of seal cover for the seal cover is closely overlapped and is established at the concrete sample outer wall, inserts the mould section of thick bamboo with the concrete sample that the seal cover was established to the cover, inserts the time, fixes a position through the backing sheet for between the backing sheet inserts adjacent sealing strip, and sealed bag is the shrink state this moment, through the design of sealing strip, seal cover outer wall and mould section of thick bamboo inner wall contactless, only the part of sealing strip can with the contact of mould section of thick bamboo inner wall, and area of contact is little and the sealing strip can warp, installs the concrete sample in the mould section of thick bamboo easily.

2. After the concrete test piece is installed in the mould section of thick bamboo, fill water or gas in to the seal bag for the space between the adjacent sealing strip is filled in the inflation of seal bag, and seal bag can extrude sealing strip and seal cover, makes the laminating of seal cover more inseparable outside the concrete test piece, further seals the clearance between the outer wall of concrete test piece and the seal cover. Meanwhile, the sealing strip is extruded to seal the gap between the sealing strip and the sealing bag, so that the gap between the sealing sleeve and the die cylinder is completely filled, and the sealing effect is ensured.

In addition, the sealing strip is positioned through the supporting piece, so that the concrete sample can be positioned in the middle of the mould barrel as much as possible when the concrete sample is inserted into the mould barrel, and sealing cannot be well realized by the circumferential sealing bag of the mould barrel caused by the deviation of the concrete sample from the middle of the mould barrel.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a test pattern according to the background art of the utility model.

Fig. 2 is a schematic overall structure of an embodiment of the present utility model.

Fig. 3 is an enlarged view of a portion a in fig. 2.

In the figure: 1. a mounting plate; 2. a groove; 3. a water inlet hole; 4. a mold cylinder; 5. a concrete test piece; 6. a guide rod; 7. sealing sleeve; 8. a sealing strip; 9. a support sheet; 10. sealing the bag; 11. an annular bladder; 12. an annular block; 13. a seal ring; 14. a seal ring; 15. a rotating rod; 16. a limiting block; 17. and a connecting ring.

Detailed Description

The utility model is described in further detail below with reference to the drawings in the specification and the detailed description is given.

As shown in fig. 2 and 3, the concrete impermeability detection test die comprises a die cylinder 4 for placing a concrete test piece 5, a mounting plate 1 for mounting the die cylinder 4 and a sealing assembly, wherein a groove 2 and a water inlet hole 3 communicated with the groove 2 are formed in the mounting plate 1, the groove 2 is communicated with the inner cavity of the die cylinder 4, and after the die cylinder 4 is mounted on the mounting plate 1, the groove 2 is positioned under the inner cavity of the die cylinder 4.

The end part of the die cylinder 4 is provided with a connecting ring 17, the connecting ring 17 is detachably connected with the mounting plate 1, specifically, the mounting plate 1 is fixedly provided with a plurality of guide rods 6, the connecting ring 17 is provided with guide holes for the guide rods 6 to be inserted, and the guide rods 6 are in threaded connection with nuts after being inserted into the guide holes. In order to ensure tightness between the connecting ring 17 and the mounting plate 1, a sealing ring 14 is fixed on the connecting ring 17, and the inner diameter of the sealing ring 14 is larger than the outer diameter of the groove 2. The mounting plate 1 is provided with a mounting groove for the sealing ring 14 to be inserted, the depth of the mounting groove is smaller than the thickness of the sealing ring 14, so that the sealing ring 14 cannot be completely inserted into the mounting groove when the sealing ring is not acted by external force, and the sealing ring 14 deforms after being extruded, thereby achieving better sealing effect. When the connecting ring 17 is attached to the mounting plate 1, by turning the nut, downward pressure is applied to the connecting ring 17, pressing the seal ring 14, sealing the gap between the connecting ring 17 and the mounting plate 1.

The sealing assembly comprises a sealing sleeve 7 which is used for being sleeved outside the concrete test piece 5, and the sealing sleeve 7 is tightly sleeved on the outer wall of the concrete test piece 5 through the deformability of the sealing sleeve 7. The sealing sleeve 7 outer wall is fixed with a plurality of sealing strips 8 along its circumference, the axial of sealing sleeve 7 is followed to the length direction of sealing strip 8, the mould section of thick bamboo 4 inner wall is fixed with a plurality of backing plates 9 along circumference, backing plate 9 is used for inserting between the adjacent sealing strip 8, the outside cover of backing plate 9 is equipped with the sealed bag 10 that is used for filling water or air, sealing sleeve 7, sealing strip 8, sealed bag 10 all select for use elastic rubber to make, the feed port has been seted up to sealed bag 10 upper end, install the valve in the feed port, fill water or air in to sealed bag 10 through the feed port. The side wall of the sealing bag 10 is opened and fixed on the inner wall of the mold cylinder 4, and the supporting sheet 9 is inserted into the sealing bag 10 through the opening of the side wall of the sealing bag 10.

When the sealing sleeve is specifically used, the concrete test piece 5 sleeved with the sealing sleeve 7 is inserted into the mold cylinder 4, and when the sealing sleeve is inserted, the sealing sleeve is positioned through the supporting piece 9, so that the supporting piece 9 is inserted between the adjacent sealing strips 8, and the sealing bag 10 is in a contracted state. After the concrete test piece 5 is installed in the mold cylinder 4, water or gas is filled into the sealing bag 10, so that the sealing bag 10 is inflated to fill the gaps between the adjacent sealing strips 8. And then the mould cylinder 4 is arranged on the mounting plate 1, water is injected into the groove 2 through the water inlet hole 3, the water pressure is gradually regulated, and whether water seepage exists at the upper end of the concrete test piece 5 is observed.

In another embodiment of the present utility model, the sealing assembly further includes an annular bladder 11, the annular bladder 11 is made of elastic rubber, the annular bladder 11 is communicated with all the sealing bladders 10, in the actual design process, the annular bladder 11 and all the sealing bladders 10 can be integrally formed, or the annular bladder 11 can be adhered to the end of the sealing bladder 10, when the adhering mode is selected, communication holes for communication are formed on the annular bladder 11 and the sealing bladder 10, and the communication holes on the annular bladder 11 and the sealing bladder 10 are aligned and adhered. The annular bag 11 is arranged at one end of the mould cylinder 4 connected with the mounting plate 1, and the inner side end of the annular bag 11 is used for clamping the end part of the concrete test piece 5, namely the inner diameter of the annular bag 11 is required to be smaller than the outer diameter of the lower end of the concrete test piece 5.

When the concrete use, when filling water or air into sealing bag 10, water or air also can get into annular bag 11 in, and then makes annular bag 11 inflation, and after the annular bag 11 inflation, the inboard end card of annular bag 11 is in concrete test piece 5 lower extreme, further seals the clearance between concrete lower extreme outer wall and the mould section of thick bamboo 4, improves sealed effect.

In another embodiment of the utility model, an annular block 12 is vertically and slidably connected in the groove 2, the inner wall of the annular block 12 is in a round table shape, the small diameter end of the inner wall of the annular block 12 faces the annular bag 11, and the upper end of the annular block 12 is used for propping against the annular bag 11. In the initial state, the annular block 12 is under the action of self gravity, the lower end of the annular block 12 is propped against the bottom of the groove 2, and after the die cylinder 4 is mounted on the mounting plate 1, the lower end of the annular bag 11 is propped against the upper end of the annular block 12. Then fill water or air to sealing bag 10 for annular bag 11 inflation, annular bag 11 lower extreme receives annular piece 12 spacing, makes the inner wall of annular bag 11 to the central direction of concrete test piece 5 inflation, better card is in the lower extreme of concrete test piece 5. When water is injected into the groove 2 through the water inlet hole 3, when water flows to the two sides of the groove 2 and contacts with the annular blocks 12, the water pressure pushes the annular blocks 12 upwards, the annular blocks 12 are propped against the annular bag 11 upwards, and the annular bag 11 is clamped at the lower end of the concrete test piece 5 better, so that a better sealing effect is achieved.

In another embodiment of the utility model, the upper end of the annular block 12 is fixed with the sealing ring 13, the outer wall of the sealing ring 13 is fixed with the sealing ring 14, the inner diameter of the sealing ring 13 is smaller than or equal to the inner diameter of the upper end of the annular block 12, the gap between the annular block 12 and the inner wall of the groove 2 is sealed by the arrangement of the sealing ring 13, and meanwhile, the gap between the annular block 12 and the annular bag 11 is sealed, so that the sealing effect is better.

In another embodiment of the present utility model, a plurality of rotating rods 15 are connected to the mounting plate 1 along the circumferential direction of the connecting ring 17, a limiting block 16 is fixed on the rotating rods 15, the lower end of the limiting block 16 is used for abutting against the upper end of the connecting ring 17, after the module 4 is placed on the mounting plate 1, nuts on a plurality of guide rods 6 are required to be connected and rotated to fix the module 4 on the mounting plate 1, if the nuts are not screwed in place, the downward pressure on the connecting ring 17 is not in place, and thus the sealing effect between the connecting ring 17 and the mounting plate 1 is possibly poor, the limiting block 16 is designed, when the nuts are all rotated, the rotating rods 15 are rotated, so that the limiting block 16 is clamped at the upper end of the connecting ring 17, if the limiting block 16 cannot be clamped at the upper end of the connecting ring 17, it is indicated that part of the nuts are not screwed in place, and the nuts need to be screwed again.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.

Claims

1. The concrete impermeability detection test die comprises a die cylinder for placing a concrete test piece and a mounting plate for mounting the die cylinder, wherein a groove and a water inlet hole communicated with the groove are formed in the mounting plate, and the groove is communicated with the inner cavity of the die cylinder; the method is characterized in that: the sealing assembly comprises a sealing sleeve which is sleeved outside the concrete test piece, a plurality of sealing strips are fixed on the outer wall of the sealing sleeve along the circumferential direction of the sealing sleeve, and the length direction of the sealing strips is along the axial direction of the sealing sleeve; the inner wall of the mold cylinder is circumferentially fixed with a plurality of supporting sheets, the supporting sheets are used for being inserted between adjacent sealing strips, the outer sides of the supporting sheets are sleeved with sealing bags used for filling water or air, and the sealing bags are fixed on the inner wall of the mold cylinder; the sealing sleeve, the sealing strip and the sealing bag are made of elastic rubber.

2. The concrete impermeability test die according to claim 1, characterized in that: the sealing assembly further comprises an annular bag, the annular bag is communicated with all the sealing bags, the annular bag is arranged at one end of the die cylinder, which is connected with the mounting plate, and the inner side end of the annular bag is used for clamping the end part of the concrete test piece.

3. The concrete impermeability test die according to claim 2, characterized in that: the connecting ring is arranged at the end part of the die cylinder, the connecting ring is detachably connected with the mounting plate, the sealing ring is fixed on the connecting ring, and the inner diameter of the sealing ring is larger than the outer diameter of the groove.

4. A concrete impermeability test mold according to claim 3, characterized in that: the groove is internally provided with an annular block in a vertical sliding connection mode, the inner wall of the annular block is in a round table shape, the small diameter end of the inner wall of the annular block faces the annular bag, and the upper end of the annular block is used for propping against the annular bag.

5. The concrete impermeability test die according to claim 4, wherein: and the upper end of the annular block is fixed with a sealing ring, and the outer wall of the sealing ring is fixed with the sealing ring.

6. A concrete impermeability test mold according to claim 3, characterized in that: the mounting plate is provided with a mounting groove for the sealing ring to be inserted, and the depth of the mounting groove is smaller than the thickness of the sealing ring.

7. A concrete impermeability test mold according to claim 3, characterized in that: a plurality of guide rods are fixed on the mounting plate, guide holes for the guide rods to be inserted are formed in the connecting rings, and nuts are connected with the guide rods in a threaded mode after the guide rods are inserted into the guide holes.

8. The concrete impermeability test die according to claim 3 or 7, characterized in that: the mounting plate is connected with a plurality of rotating rods in a circumferential direction along the connecting ring, limiting blocks are fixed on the rotating rods, and the lower ends of the limiting blocks are used for propping against the upper ends of the connecting rings.