CN113702278A

CN113702278A - Concrete protection layer is closely knit degree detection device of grout sleeve for rebar connection

Info

Publication number: CN113702278A
Application number: CN202111082843.7A
Authority: CN
Inventors: 杨元奎; 赵国银; 孙宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-15
Filing date: 2021-09-15
Publication date: 2021-11-26
Anticipated expiration: 2041-09-15
Also published as: CN113702278B

Abstract

The invention discloses a grouting sleeve compactness detection device for connecting concrete protective layer steel bars, which comprises a grouting sleeve, a detection head and a plugging pipe, wherein one end of the grouting sleeve is provided with a plastic plug; the puncture tube is movably connected inside the plugging tube, and one end of the puncture tube is provided with a puncture part; the puncture part punctures the plastic plug by moving the puncture pipe to one side of the plug pipe so as to communicate the detection surface in the grouting hole of the grouting sleeve with the outside. According to the grouting sleeve compactness detection device for concrete protective layer steel bar connection, provided by the invention, the grouting hole can be kept isolated from the outside through the plastic plug arranged at one end of the plug pipe, liquid leakage is prevented after grouting is finished, a user can enable the puncture part to puncture the plastic plug by hammering the puncture pipe, at the moment, the detection head can extend into the puncture part at one end of the puncture pipe to be in contact detection with the detection surface, the detection surface cannot be abraded by the puncture action of the puncture part, and further, the connection strength of the grouting sleeve cannot be damaged.

Description

Concrete protection layer is closely knit degree detection device of grout sleeve for rebar connection

Technical Field

The invention relates to the technical field of compactness detectors, in particular to a device for detecting the compactness of a grouting sleeve for connecting concrete protective layer steel bars.

Background

The grouting sleeve is a combination assembled by a specially processed sleeve, matched grouting material and reinforcing steel bars, and the grouting material is injected to be fast hardened and does not shrink when the reinforcing steel bars are connected. When in use, the reinforcing steel bars at two ends are connected with the sleeve by the bonding and meshing action between the concrete materials. The connecting device has the advantages of reliable connecting performance, wide applicability, simplicity and convenience in installation and the like. When using grout sleeve to connect, in order to ensure to connect reliably, need carry out closely knit degree to it and detect to ensure that engineering quality meets the requirements.

According to the patent number: CN110208329B, published as 2021-07-20, discloses a sleeve grouting compactness detection method, which comprises the following steps: the method comprises the following steps that firstly, the upper ends of eight metal wires are respectively connected with eight metal insertion tubes inside a female connector in series through conducting wires, then three positioning rings are sleeved outside a first steel bar at equal intervals, and then the eight metal wires are annularly and equiangularly installed inside the three positioning rings; step two, the three positioning rings and the first steel bar are arranged inside the bottom end of the sleeve, the bottom end of the first steel bar is ensured to be exposed outside the bottom end of the sleeve, and meanwhile, the female connector penetrates through the grout outlet and is exposed outside the sleeve; step three, sleeving the first end cover outside the first steel bar, fixedly installing the first end cover outside the bottom end of the sleeve, fixedly installing the second steel bar inside the upper end of the sleeve through the second end cover, and ensuring that the upper end of the second steel bar is exposed outside the upper end of the sleeve; step four, horizontally placing the sleeve, keeping the grouting port and the grout outlet in a vertical direction, placing the female connector at a position higher than the grout outlet, grouting the interior of the sleeve through the grouting port, and vibrating the sleeve by using vibration equipment during grouting until grouting fluid uniformly emerges from the grout outlet so as to stop grouting; step five, the display part is controlled in the detection of sleeve grouting compactness detection device start, and insert eight metal contact pins on the male connector in eight metal intubate inside the female connector, then detect the inside grouting compactness of sleeve through operating the touch display screen, the electrical parameter that the display part is controlled in the detection will be detected between eight two adjacent metal wires shows through the touch display screen and is used for supplying the detection personnel to judge whether qualified for the inside grouting compactness of sleeve, after detecting, pull out the male connector, control the display part to shut down in the detection, it can to put into the inside of grout outlet with the female connector at last. The main technical effects are as follows: the method is provided aiming at the defect that a convenient and quick nondestructive testing method which is convenient to implement on site does not exist for the compactness of sleeve grouting, has simple steps, is convenient and quick, is easy to implement, can detect the compactness of the grouting in the sleeve without cutting and damaging the sleeve, particularly can meet the nondestructive testing which can be implemented on site, can implement on-site remedial measures for the unqualified compactness of the sleeve grouting, can continue grouting into the sleeve until the compactness of the grouting is detected to be qualified, not only can save the construction cost, but also can ensure the construction quality on site, provides technical support for the nondestructive testing of the assembly type building, and simultaneously plays a positive promoting role for the better development of the assembly type building.

Before closely knit degree detects, the testing personnel need use the hand drill to bore the shutoff rubber on the grout outlet hole of grout sleeve and wear, and at the in-process of boring, the rubber material is too soft, and the drill bit can be very easily bore rubber, bumps with the detection face.

Disclosure of Invention

The invention aims to provide a grouting sleeve compactness detection device for connecting concrete protective layer steel bars

In order to achieve the above purpose, the invention provides the following technical scheme:

the utility model provides a concrete protection layer is closely knit degree detection device of grout sleeve for steel bar connection, includes grout sleeve and detects the head, grout sleeve has a grout hole, still includes:

a plugging tube having a plastic plug at one end;

the puncture tube is movably connected inside the plugging tube, and one end of the puncture tube is provided with a puncture part;

and moving the puncture pipe to one side of the plugging pipe to enable the puncture part to puncture the plastic plug so as to enable the detection surface in the grouting hole of the grouting sleeve to be communicated with the outside.

Preferably, the puncturing part has a plurality of puncturing blades, and each two of the puncturing blades are held and connected by a plastic sheet, and the puncturing part is pressed by the detection head to separate the plurality of puncturing blades from each other.

Preferably, the puncture device further comprises a plugging part arranged at one end of the puncture tube, the plugging part comprises a driving assembly, a plurality of plugging sheets and a connecting cylinder, and the detection head is inserted into the connecting cylinder and drives the driving assembly to keep rotating through the connecting cylinder so as to enable the plugging sheets to be unfolded.

Preferably, the blocking part further comprises an elastic unit which is arranged between the puncture tube and the blocking part and drives the plurality of blocking pieces to be kept closed by the elasticity of the elastic unit.

Preferably, the connecting cylinder comprises a guide cylinder and a driving cylinder, a guide groove is formed in the inner wall of the guide cylinder, a driving groove is formed in the inner wall of the driving cylinder, and the guide cylinder and the driving cylinder are inserted and connected to enable the guide groove to be communicated with the driving groove.

Preferably, a connecting part is arranged on the outer wall of the detection head, and the connecting part comprises a rotating ball which is movably arranged and is in sliding connection with the connecting cylinder through the rotating ball.

Preferably, the driving assembly comprises a gear arranged on the plugging sheet, a rack and an insertion rod arranged at the bottom of the connecting cylinder, the gear and the insertion rod are inserted and connected, and the gear is driven to rotate on the rack by the insertion rod so as to enable the plugging sheet to rotate.

Preferably, the puncture device further includes a pressing block provided in the occlusion tube, and the puncture portion is brought into contact with the pressing block to close the deployed puncture blade by rotating the puncture tube.

Preferably, the outer wall of the pressing block is in a circular arc shape, and an abutting portion is provided at one of four corners of the pressing block and abuts against the puncture blade through the abutting portion.

Preferably, the puncturing blade is made of rigid plastics integrally.

In the technical scheme, the grouting sleeve compactness detection device for connecting the concrete protective layer and the steel bars has the following beneficial effects:

according to the invention, the grouting hole can be kept isolated from the outside through the plastic plug arranged at one end of the plugging pipe, liquid leakage after grouting is prevented, when detection is carried out, a user can puncture the plastic plug through hammering the puncture pipe, the detection head can extend into the puncture part at one end of the puncture pipe and can be in contact detection with a detection surface, the detection surface is not abraded by the puncture action of the puncture part, the connection strength of the grouting sleeve is not damaged, and meanwhile, the detection result is not influenced.

Drawings

In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

Fig. 1 is a schematic perspective view of an embodiment of the present invention;

FIG. 2 is a schematic structural view of a plugging tube according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of a connector barrel according to an embodiment of the present invention;

fig. 4 is a schematic perspective sectional view of a connector according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a driving assembly according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of an assembly relationship structure of a driving assembly according to an embodiment of the present invention;

FIG. 7 is a schematic structural view of a puncture tube according to an embodiment of the present invention;

FIG. 8 is a schematic view of the movable position of the puncture tube according to the embodiment of the present invention;

FIG. 9 is a schematic structural view of the inside of the plugging tube according to the embodiment of the present invention;

fig. 10 is a schematic structural diagram of a connecting groove according to an embodiment of the present invention.

Description of reference numerals:

1. a detection head; 11. a connecting portion; 111. rotating the beads; 112. a mounting seat; 2. plugging the pipe; 21. plastic plugging; 22. a rubber sheet; 23. a boss portion; 24. connecting grooves; 241. a sliding part; 242. a clamping part; 3. a puncture tube; 31. a puncture section; 311. puncturing the blades; 32. a connector; 4. a plugging section; 41. a drive assembly; 411. a gear; 412. a rack; 413. a plug rod; 414. a fixed mount; 42. a plugging sheet; 43. a connecting cylinder; 431. a guide cylinder; 432. a guide groove; 433. a drive cylinder; 434. a drive slot; 44. an elastic unit; 5. extruding the block; 51. an abutment portion.

Detailed Description

In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.

Referring to fig. 1 to 10, a device for detecting compactness of a grouting sleeve for connecting concrete protective layer steel bars includes a grouting sleeve having a grouting hole, and further includes:

a plugging tube 2 having a plastic plug 21 at one end;

a puncture tube 3 which is connected inside the plugging tube 2 in a sliding way, and one end of the puncture tube 3 is provided with a puncture part 31;

the puncture part 31 pierces the plastic plug 21 by sliding the puncture tube 3 to the plug tube 2 side, so that the detection surface in the grouting hole of the grouting sleeve is communicated with the outside.

The external diameter of shutoff pipe 2 slightly is less than the internal diameter in grout hole, make shutoff pipe 2 can enter into grout downthehole portion very easily, the fixed rubber sheet 22 that is provided with on the outer wall of shutoff pipe 2, rubber sheet 22 specifically is ring arc structure, ring structure can make the outer wall of rubber sheet 22 laminating shutoff pipe 2 and the inner wall in grout hole more, the one end of rubber sheet 22 arc structure can contact with the inner wall in grout sleeve grout hole, make the gap between shutoff pipe 2 and the grout hole by the separation of rubber sheet 22, after the prevention is accomplished in the grout, the thick liquid spills from the gap between shutoff pipe 2 and the grout downthehole wall. The rubber sheets 22 are arranged in a linear array, and can be sequentially contacted with the inner wall of the grouting hole when the plugging pipe 2 enters the grouting hole, so as to plug a gap between the outer wall of the plugging pipe 2 and the inner wall of the grouting hole. One end of the plugging pipe 2 is provided with a bulge 23, the bulge 23 is preferably a disc-shaped bulge and can accommodate a plastic plug 21 inside, the bulge 23 is internally provided with the plastic plug 21, and the plastic plug 21 is preferably a plastic film and can play a role in plugging grout in a grouting hole and prevent the grout from entering the plugging pipe 2.

Sliding connection has puncture pipe 3 in the inner wall of the shutoff pipe 2 other end, puncture pipe 3 one end is provided with puncture portion 31, puncture portion 31 can puncture plastics shutoff 21, spread groove 24 has been seted up on the inner wall of shutoff pipe 2 one side, spread groove 24 specifically divide into sliding part 241 and joint portion 242, sliding part 241 is the wedge structure, joint portion 242 is the annular structure of circle, joint portion 242 keeps the intercommunication with sliding part 241 in proper order, fixed mounting has connector 32 on puncture portion 31's outer wall, connector 32 is fixed on puncture portion 31's outer wall through welding or bonding, puncture portion 31 passes through connector 32 sliding connection on the outer wall inside spread groove 24. When the puncture device is used, the connector 32 on the outer wall of the puncture part 31 can keep sliding on the outer wall of the sliding part 241 with the wedge-shaped structure, when a user uses a rubber hammer to hammer the puncture part 31, the puncture part 31 is under the action of impact force and slides inside the plugging tube 2, when the connector 32 on the outer wall of the puncture part 31 slides to the joint of the sliding part 241 and the clamping part 242, the connector 32 on the outer wall of the circular arc shape can extrude the joint of the sliding part 241 and the clamping part 242, so that the joint of the sliding part 241 and the clamping part 242 deforms, the connector 32 slides to the inside of the clamping part 242, when the puncture tube 3 moves, the puncture part 31 at one end of the puncture tube 3 is pushed to keep moving, and the tip of the puncture part 31 punctures the plastic plugging 21.

In another embodiment provided by the present invention, the connection groove 24 on the inner wall of the plugging tube 2 is a thread-like structure, the connection head 32 on the outer wall of the puncture tube 3 is a spiral structure, the puncture tube 3 can be connected to the thread-like connection groove 24 of the plugging tube 2 by the connection head 32 of the spiral structure, when in use, a user does not need to use a rubber hammer for hammering, only needs to rotate one end of the puncture tube 3 located outside the plugging tube 2, and can push the puncture part 31 arranged at one end of the puncture tube 3 to rotate and puncture the plastic plug 21 while the puncture tube 3 keeps rotating, so as to save physical strength, puncture the plastic plug 21 more easily, and simultaneously puncture the plastic plug 21 without using tools, which is more convenient.

According to the invention, the plastic plug 21 arranged at one end of the plugging pipe 2 can keep the grouting hole isolated from the outside, so that leakage after grouting is finished is prevented, when detection is carried out, a user can punch the puncture pipe 3 to enable the puncture part 31 to puncture the plastic plug 21, at the moment, the detection head 1 can extend into the puncture part 31 at one end of the puncture pipe 3 to be in contact detection with a detection surface, the puncture action of the puncture part 31 cannot enable the detection surface to be worn, further the connection strength of the grouting sleeve cannot be damaged, and meanwhile, the detection result cannot be influenced.

The puncturing part 31 includes a plurality of puncturing blades 311, and the puncturing blades 311 may have not only a triangular structure but also a rhombic structure, a right trapezoid structure or the like, as long as one end of the puncturing blade 311 after the splicing is pointed. The plurality of puncture blades 311 are distributed in a circumferential array with the axis of the end face of the plugging pipe 2 as the center of circle, and the puncture blades 311 are arranged in an inclined manner, so that one ends of the puncture blades 311 can be combined and spliced into tip ends, and the tip ends can puncture the outer wall of the plastic plugging 21. A plastic sheet is arranged between every two piercing blades 311, every two piercing blades 311 are connected through the plastic sheet, so that the gap between every two piercing blades 311 is blocked by the plastic sheet, when in use, the detection head 1 is inserted into the tip of the plurality of piercing blades 311, one end of the puncture blade 311 is brought into contact with the outer wall of the detection head 1, the plurality of puncture blades 311 are separated from each other by the outer wall of the detection head 1, thereby causing the plastic sheet between each two piercing blades 311 to tear, causing separation between each two piercing blades 311, and the plurality of puncture blades 311 are unfolded simultaneously by the abutting action of the detection head 1 on the puncture blades 311, when the plurality of puncture blades 311 are unfolded, the gaps of the plastic plug 21 can be torn off through one end of the puncture blade 311 positioned on the outer side of the plastic plug 21, so that the detection head 1 can be conveniently contacted with the inner concrete surface.

The puncture blade 311 is integrally made of hard plastic, so that the production cost can be saved while the plastic plug 21 is punctured, and the hard plastic has high hardness, so that a plastic film can be easily punctured, and one end of the puncture part 31 can move to the other side of the plastic plug 21.

The end of the puncture tube 3 far away from the puncture part 31 is provided with the plugging part 4, one end of the puncture tube 3 is isolated from the outside through the plugging part 4, external dust is prevented from entering the inside of the plugging tube 2 to cause blockage, the plugging part 4 comprises a driving assembly 41, a connecting cylinder 43 and a plurality of plugging sheets 42, the number of the plugging sheets 42 is preferably five, the appearance of the five plugging sheets 42 is divided into five parts according to the end face of the puncture tube 3 in an arc manner, the shape of the five plugging sheets 42 after splicing can be completely attached to the appearance of the end face of the puncture tube 3, partial dust is reduced and even prevented from entering the puncture tube 3, and the end of the puncture tube 3 far away from the puncture part 31 can be sealed after the five plugging sheets 42 are spliced. When using, the user holds detection head 1 by hand, and will detect inside head 1 inserts connecting cylinder 43, when detecting that head 1 inserts inside connecting cylinder 43, can order about connecting cylinder 43 and keep rotating to order about actuating mechanism through the rotation of connecting cylinder 43 and keep rotating, and then expand five shutoff pieces 42, make the one end of detecting head 1 can stretch into puncture pipe 3 inside. Through keeping away from puncture portion 31 with puncture pipe 3 one end is sealed, prevent that the dust that produces from entering into puncture pipe 3 inside in the building site work progress, cause the influence to the testing result.

The blocking part 4 further comprises an elastic unit 44, the elastic unit 44 is preferably a compression spring, the plurality of blocking pieces 42 are driven to be kept gathered by the elastic unit 44 to close the port of the puncture tube 3, and when the detection is not performed, the plurality of blocking pieces 42 close one end of the puncture tube 3 far away from the puncture part 31 by the elastic unit 44. The elastic unit 44 may be not only a compression spring but also a spring plate, an elastic block, or the like having elastic potential energy. The elastic means 44 is provided between the outer wall of the puncture tube 3 and the occlusion part 4.

The connecting cylinder 43 comprises a guide cylinder 431 and a driving cylinder 433, a guide groove 432 is formed in the outer wall of the guide cylinder 431, the guide groove 432 is specifically of a trapezoidal structure, the lower bottom of the trapezoidal structure is located at one end, far away from the puncture tube 3, of the guide cylinder 431, the upper bottom of the trapezoidal structure is located at one end, close to the puncture tube 3, of the guide cylinder 431, one end of the upper bottom of the trapezoidal structure of the guide groove 432 is a narrow-mouth end, one end of the lower bottom of the trapezoidal structure of the guide groove 432 is an open-mouth end, the number of the guide groove 432 is at least three, and the guide grooves 432 are distributed in a circumferential array mode by taking the end surface axis center of the guide cylinder 431 as the circle center. The outer wall of the driving barrel 433 is provided with driving grooves 434, the driving grooves 434 are of spiral structures, the inner wall of each driving groove 434 is of an arc-shaped structure, the number of the driving grooves 434 is not less than three, and the driving grooves 434 are distributed in a circumferential array mode by taking the axis of the end face of the driving barrel 433 as the center of a circle. The opening position of the driving groove 434 is matched with the opening position of the upper bottom of the trapezoidal structure of the guide groove 432, so that the driving groove 434 and the guide groove 432 can be perfectly spliced. The upper bottom of the trapezoidal structure of the guide groove 432 is matched with the diameter of the circular arc structure inner wall of the driving groove 434. The outer wall of the end face of the guide cylinder 431 is fixedly provided with a plug connector, the inner wall of the end face of the driving cylinder 433 is provided with a plug-in groove, and the guide cylinder 431 is plugged into the plug-in groove of the driving cylinder 433 through the plug connector. The guide cylinder 431 and the driving cylinder 433 adopt a splicing design, so that a processing factory can conveniently process the materials, and the processing cost is reduced. One end of the guide groove 432 close to the driving barrel 433 is provided with an arc-shaped chamfer, one end of the driving groove 434 close to the guiding barrel 431 is provided with an arc-shaped chamfer, after splicing, the splicing part of the guide groove 432 and the driving groove 434 does not have a right-angle-shaped bulge, the detection head 1 can be conveniently inserted into the connecting barrel 43, and clamping stagnation of a user when the detection head 1 is used is reduced.

Be provided with three connecting portion 11 on detecting head 1's outer wall at least, connecting portion 11 include mount pad 112 and rotation pearl 111, and a plurality of mount pads 112 use the axle center department of detecting head 1 outer wall to keep the circumference array to distribute as the centre of a circle, and mount pad 112 is for welding on detecting head 1's outer wall, can prevent to detect head 1 and grout telescopic grout hole bump in the use. The outer wall of the mounting seat 112 is provided with a spherical groove, and the inner wall of the spherical groove is matched with the outer wall of the rotating ball 111, so that the rotating ball 111 can be clamped inside the spherical groove and can freely rotate on the inner wall of the spherical groove. When the user inserts the detection head 1 into the connection barrel 43, since the open end of the guide groove 432 is located at the end of the guide barrel 431 away from the puncture tube 3, when the detection head 1 is inserted into the guide groove 432, the rotary ball 111 can easily enter the open end of the guide groove 432, and the user can insert the detection head 1 into the connection barrel 43 without detailed alignment. The detection head 1 is continuously inserted into the connecting cylinder 43, and as the detection head 1 is gradually inserted into the connecting cylinder 43, the rotating ball 111 gradually slides in the guide groove 432, when the rotating ball 111 slides to the joint of the guide groove 432 and the driving groove 434, because one end of the guide groove 432 close to the driving groove 434 is in an arc-shaped chamfer structure, one end of the driving groove 434 close to the guide groove 432 is in an arc-shaped chamfer, and the shape of the driving groove 434 close to the guide groove 432 is matched with the shape of the guide groove 432 close to the driving groove 434, the rotating ball 111 can easily slide from the guide groove 432 to the driving groove 434. After the rotating ball 111 slides to the inside of the driving groove 434, as the detection head 1 is continuously inserted into the connecting cylinder 43, the driving groove 434 is of a spiral structure, the rotating ball 111 keeps sliding along the inner wall of the driving groove 434, the driving cylinder 433 can be kept rotating, as the driving cylinder 433 and the guide cylinder 431 are kept fixedly inserted, the guide cylinder 431 can be kept rotating under the rotation of the driving cylinder 433, after the connecting cylinder 43 keeps rotating, the driving mechanism can be driven to keep the plurality of plugging sheets 42 rotating, so as to separate the plurality of plugging sheets 42, and the top of the detection head 1 can be inserted into the puncture tube 3.

The driving assembly 41 comprises a fixed frame 414, a gear 411, a rack 412 and insertion rods 413, the insertion rods 413 are fixedly mounted on the outer wall of the end face of the driving cylinder 433, the number of the insertion rods 413 is preferably five and is used for matching the number of the plugging sheets 42, and the insertion rods 413 are distributed in a circumferential array by taking the axis of the end face of the driving cylinder 433 as a circle center. The fixing frame 414 is fixedly installed on the end face of the end of the puncture tube 3 far away from the puncture part 31, a sliding groove is formed on the outer wall of one side of the fixing frame 414, the elastic unit 44 is arranged in the sliding groove, the tooth frame 412 is fixedly installed on the outer wall of one side of the fixing frame 414, a notch is formed on the outer wall of one side of the tooth frame 412, a tooth notch is formed on the inner wall of one side of the notch, the sliding groove is positioned between the inner walls of two sides of the notch, the gear 411 is fixedly installed on the outer wall of one side of the plugging sheet 42, an inserting hole for passing through the inserting rod 413 is formed on the outer wall of one side of the plugging sheet 42, during installation, firstly, the inserting holes of a plurality of plugging sheets 42 are required to be inserted to the outer wall of the inserting rod 413, so that one end of the inserting rod 413 passes through the axis of the gear 411, then the tooth frame 412 is fixed to the outer wall of the fixing frame 414 by using screws, during installation, the sliding groove is required to be adjusted to the middle position of the notch, then, the connecting cylinder 43 is inserted into the sliding groove according to the insertion rod 413, so that one end of the insertion rod 413 is located at the other side of the fixing frame 414, then, a nut is used to connect the nut to one end of the insertion rod 413 located at the other side of the fixing frame 414 in a threaded manner, so that the insertion rod 413 can freely slide in the sliding groove, one end of the elastic unit 44 is abutted against the outer wall of the insertion rod 413, and finally, the fixing frame 414 is fixed to the outer wall of one end of the puncture tube 3 through a screw. When the plugging device is used, a user enables the connecting cylinder 43 to keep rotating by using the detection head 1, when the connecting cylinder 43 keeps rotating, the plugging rod 413 is driven to slide in the sliding groove, when the plugging rod 413 slides, the gear 411 is driven to keep rotating by taking the axis of the connecting cylinder 43 as the center of a circle, and as the gear 411 is meshed with the tooth opening on the tooth rack 412, the gear 411 can keep rotating, and the plugging pieces 42 are driven to rotate by the rotation of the gear 411, so that the plugging pieces 42 are separated. After the detection is finished, the worker removes the detection head 1, the insertion rod 413 is reset under the action of the elastic unit 44, and finally the plugging sheet 42 is gathered, so that one end of the puncture tube 3, which is far away from the puncture part 31, is closed, and dust is prevented from entering the puncture tube 3.

One end of the inner wall of the plugging pipe 2 close to the plastic plug 21 is fixedly provided with a plurality of extrusion blocks 5, the number of the extrusion blocks 5 is not less than four, and the plurality of extrusion blocks 5 keep a circumferential array by taking the axis of the end face of the plugging pipe 2 as the center of a circle. When detecting, the detection head 1 is inserted into the puncture part 31, the puncture part 31 is expanded, after detection is completed, the puncture part 31 cannot be automatically reset, partial dust enters the puncture tube 3 from the concrete part, so that the puncture tube 3 is internally blocked, and secondary measurement cannot be performed, in order to prevent the dust from entering the puncture tube 3 from the concrete end, a worker can rotate the puncture tube 3, when the puncture tube 3 rotates, the expanded puncture blades 311 can contact with the outer wall of the extrusion block 5, and the multiple puncture blades 311 are gathered together through the shape of the outer wall of the extrusion block 5, so that one end of the puncture part 31 of the puncture tube 3 is kept relatively closed, the possibility that the dust enters the puncture tube 3 from the puncture part 31 is reduced, and secondary detection is facilitated.

The outer wall of the extrusion block 5 is in a circular arc-shaped structure, the extrusion block 5 is provided with an abutting portion 51, the abutting portion 51 is arranged at one of four corners of the extrusion block 5, the abutting portion 51 protrudes from the other four corners, and the parts from the other four corners of the extrusion block 5 to the abutting portion 51 are in the circular arc-shaped structure, so that the puncture blades 311 of the puncture portion 31 can keep sliding on the circular arc-shaped outer wall, and finally, part of the puncture blades 311 are abutted against the abutting portion 51, so that the opening of the puncture portion 31 is reduced, and dust entering is reduced.

As another embodiment provided by the present invention, the pressing block 5 may be a pyramid structure, the outer wall of the pyramid structure may be well attached to the outer wall of the puncturing blade 311, when the puncturing tube 3 rotates, the opened puncturing blades 311 keep sliding on the side walls of the pyramid and gather together, and finally, part of the puncturing blades 311 are folded through the top of the pyramid, so as to reduce the opening of the puncturing part 31 and reduce the dust entering.

It will be appreciated by those skilled in the art that other similar connections may be used to implement the present invention. Such as welding, bonding, or screwing.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims

1. The utility model provides a concrete protection layer is grout sleeve compactness detection device for steel bar connection, includes grout sleeve and detects head (1), grout sleeve has a grout hole, its characterized in that still includes:

a plugging tube (2) having a plastic plug (21) at one end;

the puncture tube (3) is movably connected inside the plugging tube (2), and one end of the puncture tube (3) is provided with a puncture part (31);

the puncture part (31) punctures the plastic plug (21) by moving the puncture tube (3) to one side of the plug tube (2), so that the detection surface in the grouting hole of the grouting sleeve is communicated with the outside.

2. A grouting sleeve compactness detecting device for concrete cover rebar junction according to claim 1, characterized in that the puncturing part (31) has a plurality of puncturing blades (311), each two puncturing blades (311) are kept connected by a plastic sheet, and the puncturing blades (311) are separated from each other by the detecting head (1) pressing the inside of the puncturing part (31).

3. The compactness detection device for the grouting sleeve for connecting the concrete protection layer and the steel bar is characterized by further comprising a blocking part (4) arranged at one end of the puncture pipe (3), wherein the blocking part (4) comprises a driving assembly (41), a plurality of blocking sheets (42) and a connecting cylinder (43), the detection head (1) is inserted into the connecting cylinder (43), and the driving assembly (41) is driven to rotate through the connecting cylinder (43) so as to enable the plurality of blocking sheets (42) to be unfolded.

4. A grouting sleeve compactness detecting device for concrete cover rebar junction according to claim 3, characterized in that the plugging portion (4) further comprises an elastic unit (44) which is arranged between the puncture tube (3) and the plugging portion (4) and drives the plurality of plugging sheets (42) to be kept closed through the elasticity of the elastic unit.

5. The apparatus for detecting the compactness of a grouting sleeve for connecting concrete-protecting-layer steel bars according to claim 3, wherein the connecting cylinder (43) comprises a guide cylinder (431) and a driving cylinder (433), a guide groove (432) is formed in the inner wall of the guide cylinder (431), a driving groove (434) is formed in the inner wall of the driving cylinder (433), and the guide cylinder (431) is inserted into the driving cylinder (433) so that the guide groove (432) is communicated with the driving groove (434).

6. A grouting sleeve compactness detecting device for concrete cover rebar junction according to claim 3, characterized in that a connecting part (11) is arranged on the outer wall of the detecting head (1), the connecting part (11) comprises a rotating bead (111) which is movably arranged, and the rotating bead (111) is in sliding connection with the connecting cylinder (43).

7. A grouting sleeve compactness detecting device for concrete cover steel bar connection according to claim 3, characterized in that the driving component (41) comprises a gear (411) arranged on the plugging sheet (42), a rack (412) and a plug rod (413) arranged at the bottom of the connecting cylinder (43), the gear (411) is kept plugged with the plug rod (413), and the gear (411) is driven to rotate on the rack (412) by the plug rod (413) so as to keep the plugging sheet (42) rotating.

8. The device for detecting the compactness of the grouting sleeve for connecting the concrete protection layer and the steel bar according to claim 2, further comprising an extrusion block (5) arranged in the blocking pipe (2), wherein the puncture part (31) is abutted against the extrusion block (5) by keeping the puncture pipe (3) rotating so as to close the unfolded puncture blade (311).

9. The apparatus for detecting the compactness of a grouting sleeve for connecting concrete cover bars according to claim 8, wherein the outer wall of one side of the extrusion block (5) is in a circular arc-shaped structure, and an abutting part (51) is arranged at one of four corners of the extrusion block, and is abutted with the piercing blades (311) through the abutting part (51).

10. The grouting sleeve compactness detection device for concrete cover steel bar connection according to claim 2, wherein the piercing blades (311) are made of rigid plastics integrally.