CN216340111U - High-strength connecting piece and concrete member - Google Patents

Abstract

The utility model discloses a high-strength connecting piece and a concrete component, wherein the high-strength connecting piece comprises a first end plate, a second end plate, an inserted link and an umbrella rib cylinder; the first end plate is provided with an inserted link fixing hole; the second end plate is provided with a plug connecting hole, and the inserted bar is fixed on the first end plate; the umbrella rib cylinder comprises a sleeve-shaped umbrella rib cylinder body and a plurality of elastic umbrella rib teeth uniformly distributed at one end of the umbrella rib cylinder body, the elastic umbrella rib teeth are outwards expanded from one end of the umbrella rib cylinder body to a free end along the radial direction of the umbrella rib cylinder body, and the end surfaces of the free ends of the elastic umbrella rib teeth are butt surfaces; the plug can insert in the plug connecting hole, and the elastic umbrella rib teeth are connected with the second end plate in a clamping mode. The high-strength connecting piece has the advantages of being capable of being connected quickly, simple in connecting structure, good in connecting strength, integrity and stability, high in tensile bearing capacity and the like.

Description

High-strength connecting piece and concrete member

Technical Field

The utility model relates to the technical field of precast concrete connection, in particular to a high-strength connecting piece and a concrete member.

Background

In the construction process of a building, the connection between building components is indispensable, the butt joint of the traditional building components is usually realized by welding end steel plates, but because the limitation of the welding process is that only one circle of the periphery of the end plate is welded, the other 95% of the area of the end plate is not treated, the connection of the building components is not uniform and not sufficient, and the anti-pulling and anti-bending performance of the building components is not high. In addition, the traditional welding process has the problems of poor corrosion resistance and incapability of realizing tight connection of components due to the exposure of the rigid end plate.

SUMMERY OF THE UTILITY MODEL

The utility model provides a high-strength connecting piece aiming at the problems.

The technical means adopted by the utility model are as follows:

a high-strength connecting piece comprises a first end plate, a second end plate, an inserting rod and an umbrella rib cylinder;

the first end plate is provided with an inserted link fixing hole;

the second end plate is provided with a plug connecting hole;

the inserted link comprises a base and a plug arranged on the base, and the base is fixedly connected with the inserted link fixing hole;

the umbrella rib cylinder comprises a sleeve-shaped umbrella rib cylinder body and a plurality of elastic umbrella rib teeth uniformly distributed at one end of the umbrella rib cylinder body, the other ends of the elastic umbrella rib teeth are free ends, the elastic umbrella rib teeth are outwards expanded from one end of the umbrella rib cylinder body to the free ends along the radial direction of the umbrella rib cylinder body, and the end surfaces of the free ends of the elastic umbrella rib teeth are butt joint surfaces; the umbrella rib cylinder is sleeved on the plug and is fixedly connected with the plug through the umbrella rib cylinder body, and the free ends of the elastic umbrella rib teeth face one end of the base;

the plug can insert in the plug connecting hole, just elasticity umbrella bone tooth with the second end board closes and is connected.

Further, the second end plate is far away from the one end of plug male and is equipped with first joint face, the plug can insert in the plug connecting hole, just the butt face with first joint face butt.

Further, when the elastic umbrella rib teeth are in an open state, an included angle between the abutting surface and the axis of the umbrella rib cylinder body is 30-80 degrees, the first clamping surface is an inclined surface arranged on the edge of the plug connecting hole far away from the end, inserted by the plug, of the plug connecting hole, and the included angle between the first clamping surface and the axis of the plug connecting hole is 30-80 degrees.

Furthermore, the included angle between the abutting surface and the axis of the umbrella rib cylinder body is consistent with the included angle between the first clamping surface and the axis of the plug connecting hole.

Further, still including keeping off the ring, it fixes to keep off the ring in the plug connection hole, it keeps away from plug male one end and is equipped with the second joint face to keep off the ring, the plug can insert in the plug connection hole, just the butt face with second joint face butt.

Further, when the elastic umbrella rib teeth are in an opening state, an included angle between the abutting surface and an axis of the umbrella rib tube body is 30-80 degrees, and an included angle between the second clamping surface and an axis of the retaining ring is 30-80 degrees.

Furthermore, the included angle between the abutting surface and the axis of the umbrella rib tube body is consistent with the included angle between the second clamping surface and the axis of the retaining ring.

Furthermore, the outer wall surface of the elastic umbrella rib teeth is of an arc-shaped structure from one end of the umbrella rib cylinder body to the free end.

Furthermore, the inserted bar and the umbrella rib cylinder are of an integrated structure; or the like, or, alternatively,

the umbrella rib tube comprises a plug and is characterized in that a first external thread is arranged on the plug, a first internal thread is arranged in an umbrella rib tube body, and the umbrella rib tube body is fixedly connected with the plug through the first external thread and the first internal thread.

The utility model discloses a concrete member, which comprises a concrete member body and a high-strength connecting piece disclosed by the utility model, wherein a first end plate and a second end plate are respectively fixed at two ends of the concrete member body, when two adjacent concrete members are spliced, a plug can be inserted into a plug connecting hole, and elastic umbrella rib teeth are connected with the second end plate in a clamping manner.

Compared with the prior art, the high-strength connecting piece disclosed by the utility model has the following beneficial effects: the high-strength connecting piece disclosed by the utility model can realize the quick connection of building components only by the first end plate, the second end plate, the inserted bar and the umbrella rib cylinder structure, and has the advantages of simple structure, good connection strength, integrity and stability among the building components and high tensile bearing capacity.

Drawings

FIG. 1 is a block diagram of a first embodiment of a high tensile joint according to the present disclosure;

fig. 2a is a front view of a rib cage;

FIG. 2b is a right side view of FIG. 2 a;

FIG. 2c is a left side view of FIG. 2 a;

FIG. 2d is a cross-sectional view taken along line A-A of FIG. 2 c;

FIG. 3 is a block diagram of the insert rod;

FIG. 4 is a block diagram of the first end plate;

FIG. 5 is a structural view of the second end plate;

FIG. 6 is a structural view showing the abutting surface of the elastic rib teeth and the axis of the rib tube forming a certain inclination angle;

FIG. 7a is a schematic view showing the process of inserting the rod into the second end plate when the abutting surface of the elastic rib teeth is perpendicular to the axis of the rib barrel;

FIG. 7b is an enlarged view of a portion of the circled portion of FIG. 7 a;

FIG. 8 is a structural diagram of the first clamping surface of the second end plate and the axis of the second tensioned threaded hole with a certain inclination angle;

FIG. 9 is a schematic view of the process of inserting the insertion rod into the second end plate when the axes of the first engaging surface and the second tensioned threaded hole have a certain inclination angle;

FIG. 10 is a block diagram of a second embodiment of the high tensile connector of the present disclosure;

FIG. 11 is a block diagram of a retainer ring;

FIG. 12 is a view of the second engaging surface of the retainer ring at an oblique angle to the axis of the retainer ring;

FIG. 13 is a schematic view showing the process of inserting the rod into the second end plate when the abutting surface of the elastic rib teeth is perpendicular to the axis of the rib barrel in the second embodiment;

FIG. 14 is a schematic view showing a process of inserting the rod into the second end plate, in which the abutting surfaces of the elastic rib teeth are at a certain angle to the axis of the rib barrel in the second embodiment;

FIG. 15 is a block diagram of a concrete component according to the present disclosure;

FIG. 16 is a block diagram of a beam-column connection having a high strength connector according to the present disclosure;

figure 17 is a block diagram of a wall panel connection having a high strength connector according to the present disclosure.

In the figure: 1. the umbrella rib comprises an inserting rod, 10, a base, 11, a plug, 12, a first external thread, 13, a connecting part, 2, an umbrella rib cylinder, 20, an umbrella rib cylinder body, 21, elastic umbrella rib teeth, 22, a butting surface, 23, a first internal thread, 24, a cutting groove, 5, a first end plate, 50, a first main rib fixing hole, 51, a first tensioning threaded hole, 6, a second end plate, 60, a second main rib fixing hole, 61, a second tensioning threaded hole, 62, a first clamping surface, 7, a main rib, 70, a precast concrete component body, 8, a retaining ring, 80, a second clamping surface, 90, a beam column, 91 and a wall plate.

Detailed Description

Example 1

As shown in fig. 1 and 15, the high-strength connector disclosed by the present invention is described in this embodiment by taking a concrete member having the high-strength connector disclosed by the present invention as an example, the concrete member includes a prefabricated concrete member body 70 and a first end plate 5 and a second end plate 6 disposed at two ends of the concrete member body 70, as shown in fig. 4 and 5, the first end plate 5 is provided with a first main bar fixing hole 50 and a first tensioning screw hole 51, the second end plate 6 is provided with a second main bar fixing hole 60 and a second tensioning screw hole 61, in this embodiment, the first tensioning screw hole is a dowel fixing hole, the second tensioning screw hole is a plug insertion hole, the main bar fixing hole and the tensioning screw hole are communicated with each other to form a gourd-shaped structure, two ends of a main bar of a reinforcement cage of the prefabricated concrete member body are respectively fixedly connected with the main bar fixing holes, the main reinforcement can be selected from a PC steel bar, a deformed steel bar or a steel strand as required, correspondingly, the main reinforcement fixing hole can be a pier head clamping table, a threaded hole or a conical hole and can be selected as required, and the concrete member further comprises an inserted link 1 and an umbrella rib barrel 2;

as shown in fig. 3, the insert rod 1 includes a base 10 and a plug 11 disposed on the base 10, the base 10 is fixedly connected with the first stretch-draw threaded hole 51, and specifically, the base is provided with an external thread for being in threaded connection with the first stretch-draw threaded hole;

as shown in fig. 2a, 2b, 2c and 2d, the rib tube 2 includes a sleeve-shaped rib tube body 20 and a plurality of elastic rib teeth 21 uniformly distributed at one end of the rib tube body 20, the other end of each elastic rib tooth 21 is a free end, a cutting groove 24 is formed between two adjacent elastic rib teeth, so that the elastic rib teeth 21 are expanded outward from one end of the rib tube body 20 to the free end along the radial direction of the rib tube body 20, and the end surfaces of the free ends of the elastic rib teeth 21 are abutting surfaces 22; the umbrella rib cylinder 2 is sleeved on the plug 11 and is fixedly connected with the plug 11 through the umbrella rib cylinder body 20, and the free end of the elastic umbrella rib teeth 21 faces one end of the base 10;

when two adjacent precast concrete piles (namely concrete members) are plugged, the plug 11 can be inserted into the second tensioning threaded hole 61, and the elastic umbrella bone teeth 21 are connected with the second end plate 6 in a clamping manner.

Specifically, in this embodiment, the end of the concrete member body 70 where the second end plate 6 is disposed (i.e. the end far away from the plug insertion end) is further provided with a plug accommodating cavity 90, in the process of precast concrete grouting, a hollow box body can be fixed on the second end plate in advance, the hollow box body is buckled at the second threaded hole, so as to form the plug accommodating cavity after concrete pouring, the plug 11 can be inserted into the plug accommodating cavity 90 through the second tensioning threaded hole 61, and after the rib cylinder enters the plug accommodating cavity, the elastic rib teeth are opened to make the abutting surface 22 abut against the end surface of the second end plate 6, in this embodiment, the end surface of the second end plate is the first engaging surface 62. The precast concrete pile disclosed by the utility model has the advantages of simple structure, high connection strength and tensile resistance and pull resistance among the concrete piles and the like.

The abutting surface 22 shown in fig. 1 is perpendicular to the axis of the umbrella rib tube body, the first clamping surface is the end surface of the second end plate, preferably, as shown in fig. 6, when the elastic umbrella rib teeth are in an open state, an included angle a between the abutting surface and the axis (B-B) of the umbrella rib tube body is 30 to 80 °, as shown in fig. 8, the first clamping surface 62 is an inclined surface which is arranged at the edge of one end of the second tensioning threaded hole facing the plug accommodating cavity, and an included angle B between the first clamping surface 62 and the axis (C-C) of the second tensioning threaded hole is 30 to 80 °. Superior food

As shown in fig. 1, when the abutting surface 22 is perpendicular to the axis of the rib tube body and the first clamping surface is the end surface of the second end plate, when the inserted rod is inserted into the second tensioning screw hole, in order to realize the mutual abutting between the abutting surface and the first clamping surface, the rib tube needs to be inserted into the plug accommodating cavity in a transition manner, i.e. the free end of the elastic rib tooth needs to cross the end surface (the first clamping surface) of the plug accommodating cavity, the elastic rib tooth can be opened, the dotted line in fig. 7a and 7b shows the state when the elastic rib tooth is pressed in the insertion process, the elastic rib tooth can be pressed in the figure, therefore, only the outermost edge of the elastic rib tooth contacts with the second tensioning screw hole and until the outermost edge of the elastic rib tooth reaches the first clamping surface, the elastic rib tooth can be opened, h1 shows the distance of the transition insertion of the elastic rib tooth (or the distance generated when the elastic rib tooth is not opened relatively after being opened), due to the existence of the gap h1, after the concrete members (concrete piles) are connected, a gap is inevitably generated between the end faces of the two concrete piles due to the existence of the gap h1 between the two concrete members, and further, the concrete piles are loosened and cannot be tightly connected. Further, as shown in fig. 1, when the precast concrete pile is subjected to a pulling action, that is, a pulling action force is generated between the inserted bar and the second end plate, at this time, an action force F1 is generated between the end surface of the second end plate and the abutting surface, and since the abutting surface is perpendicular to the axis of the rib tube body, the force F1 is along the axis direction of the rib tube body, so that the elastic rib teeth are easily bent and broken due to eccentric stress of the elastic rib teeth.

As shown in fig. 8 and 9, when the abutting surface and the first clamping surface are inclined surfaces, in the process of inserting the inserted link into the second tensioning threaded hole, the elastic umbrella rib teeth are more easily flicked, that is, the abutting surface can gradually flick along the first clamping surface (the dotted line in the figure indicates the position of the elastic umbrella rib teeth just contacting with the first clamping surface), so that the elastic umbrella rib teeth are ensured to be in close contact with the first clamping surface all the time, the inserted link is seamlessly connected with the second end plate, and further, the seamless connection between the precast concrete piles is realized. Further, as shown in the figure, when the precast concrete pile receives the drawing action, namely the drawing action force is generated between the inserted bar and the second end plate, at this time, an action force F2 is generated between the first clamping surface and the abutting surface, and because the abutting surface inclines relative to the axis of the umbrella rib tube body, the force F2 can be along the direction of the elastic umbrella rib teeth, and the elastic umbrella rib teeth receive non-eccentric force, so that the deformation can not occur, and the strength of the umbrella rib tube is ensured. Because the butt joint face and first joint face are the inclined plane, and then the contact area of an umbrella rib section of thick bamboo and second end plate is great, and then can avoid the emergence of stress concentration problem, improved joint strength, guaranteed the life of connecting piece.

Furthermore, the abutting surface and the axis included angle of the umbrella rib tube body are consistent with the axis included angle of the first clamping surface and the second tensioning threaded hole, so that the connection tightness between the elastic umbrella rib teeth and the second end plate can be further improved, and the connection strength of the connecting piece is improved.

Furthermore, as shown in fig. 2a and 2D, the outer wall surface of the elastic rib teeth 21 from one end of the rib cylinder body 20 to the free end is an arc structure, i.e. the elastic rib teeth are smooth arc structures (D-D in the figure is a cut-open central line of the rib cylinder, D-D is similar to an arc line), in the present invention, the elastic rib teeth are arc structures to further avoid stress concentration, further, the elastic rib teeth are arc and the abutting surface is an inclined surface, so that when the joint is pulled, the direction of the first clamping surface reaction force of the second end plate is transmitted along the arc elastic rib teeth, the design ingeniously converts the eccentric compression of the elastic rib teeth in the original vertical direction into the axial compression along the arc direction of the elastic rib teeth and the normal direction of the abutting surface, thereby avoiding the eccentric stress of the elastic rib teeth, and the structure is more firm, the pull-out resistance of the joint is also higher.

The inserted bar 1 and the umbrella rib cylinder 2 can be welded into an integral structure, and can also be processed into an integral structure by casting or other methods. Preferably, an inserted bar and an umbrella rib cylinder are of a split structure and then are assembled into a whole, in this embodiment, a first external thread 12 is arranged on the plug 11, a first internal thread 23 is arranged in the umbrella rib cylinder body 20, the umbrella rib cylinder body 20 and the plug 11 are fixedly connected through the first external thread 12 and the first internal thread 23, the inserted bar and the umbrella rib cylinder are of a split structure, processing of each part is facilitated, meanwhile, the umbrella rib cylinder and the inserted bar can be installed in advance in a manufacturer, construction time does not need to be occupied, efficiency in a construction stage is improved, and time cost is saved.

Furthermore, according to the precast concrete pile disclosed by the utility model, the inserted rod can be completely inserted into the second tensioning threaded hole, so that after the concrete pile is inserted, the first end plate and the second end plate can be tightly attached to each other, the inserting accuracy of the inserted rod is ensured, a closed space is formed, the inserted rod can be completely sealed in the closed space, air and water and surrounding complex environments are isolated, and the joint corrosion prevention effect is achieved.

Further, the inserted bar 1 further comprises a connecting portion 13 used for connecting the base 10 and the plug 11, the outer diameter of the connecting portion 13 is larger than that of the inserted bar, and the outer diameter of the connecting portion is larger than that of the plug due to the fact that the connecting portion is arranged, so that the strength of the inserted bar can be further improved, and the pulling resistance performance is improved.

Example 2

Referring to fig. 10 and 11, a second embodiment of the high-strength connecting member disclosed in the present invention is shown, and the present embodiment is different from embodiment 1 in that in embodiment 1, a plug accommodating cavity 90 is further provided at one end of the precast concrete unit body 70 where the second end plate 6 is provided, the plug 11 can be inserted into the plug accommodating cavity 90 through the second tensioned threaded hole 61, and the abutting surface 22 abuts against an end surface of the second end plate 6 to achieve connection of the precast concrete pile.

In this embodiment, the concrete tensioning device further comprises a retaining ring 8, an external thread is arranged on the outer wall of the retaining ring 8, the retaining ring 8 can be fixedly connected with the second tensioning threaded hole through a thread, and a second clamping surface 80 is arranged at one end of the retaining ring 8 facing the precast concrete body 9, in this embodiment. The end face of the retaining ring is a second clamping face, the plug 11 can be inserted into the second tensioning threaded hole 61, and the abutting face 22 abuts against the second clamping face 80, that is, the end part of the elastic umbrella rib teeth abuts against the end part of the retaining ring, so that the connection of adjacent precast concrete piles is realized.

Meanwhile, as can be seen from fig. 10, one end of the inserted rod extends out of the second end plate, that is, one end of the second end plate close to the concrete member body needs to have a containing cavity for containing the inserted rod, and the containing cavity of the inserted rod can be formed in the following way: when concrete pile pours, can make stretch-draw screw length longer promptly, during the stretch-draw process, the end plate can be crossed to the stretch-draw screw, and behind the screw tip deepened the end plate, wait the concrete curing solidification back, withdraw from the stretch-draw screw, can form a cavity by the concrete parcel behind the end plate.

Further, as shown in fig. 12, when the elastic rib teeth are in an open state, an included angle between the abutting surface and an axis of the rib tube body is 30 to 80 °, and an included angle m between the second engaging surface and an axis (D-D) of the stopper ring is 30 to 80 °. Preferably, the included angle between the abutting surface and the axis of the umbrella rib cylinder body is consistent with the included angle between the second clamping surface and the axis of the retaining ring.

Like the first embodiment, when the abutting surface 22 is perpendicular to the axis of the umbrella rib cylinder body and the second engaging surface is the end surface of the retaining ring as shown in fig. 13, when the inserted rod is inserted into the second tensioning screw hole, in order to realize the mutual abutting between the abutting surface and the second engaging surface, the umbrella rib cylinder needs to be in the transition retaining ring, that is, the free end of the elastic umbrella rib tooth needs to cross the end surface of the retaining ring (the first engaging surface), the elastic umbrella rib tooth can be bounced off, the dotted line in fig. 13 shows the state when the elastic umbrella rib tooth is squeezed during the inserting process, the elastic umbrella rib tooth can be clipped off from the figure, therefore, only the outermost edge of the elastic umbrella rib tooth contacts the end surface of the retaining ring until the outermost edge of the elastic umbrella rib tooth reaches the second engaging surface, the elastic umbrella rib tooth can be bounced off, h2 shows the distance of the transition insertion of the elastic umbrella rib tooth (or the distance generated when the elastic umbrella rib tooth is relatively un-bounced after being bounced off), due to the existence of the gap h2, after the concrete members (concrete piles) are connected, a gap is inevitably generated between the end faces of the two concrete piles due to the existence of the gap h2 between the two concrete members, and further, the concrete piles are loosened and cannot be tightly connected. Further, as shown in fig. 10, when the precast concrete pile is subjected to the pulling action, i.e., a pulling action force is generated between the plug and the stopper ring, at this time, an action force F3 is generated between the end surface of the second end plate and the abutment surface, and the abutment surface is perpendicular to the axis of the rib tube body, so that the force F3 is in the direction along the axis of the rib tube body, and the elastic rib teeth are easily bent and broken due to the eccentric force of the elastic rib teeth.

As shown in fig. 14, when the abutting surface and the first clamping surface are inclined surfaces, in the process of inserting the inserted link into the first retaining ring, the elastic umbrella rib teeth are more easily sprung, that is, the abutting surface can be gradually sprung along the second clamping surface (the dotted line in the figure indicates the position of the elastic umbrella rib teeth when just contacting the first clamping surface), so that the elastic umbrella rib teeth are ensured to be in close contact with the first clamping surface all the time, seamless connection between the inserted link and the second end plate is achieved, and seamless connection between the precast concrete piles is further achieved. Further, as shown in the figure, when the precast concrete pile receives the drawing action, namely the drawing action force is generated between the inserted bar and the second end plate, at this time, an action force F4 is generated between the second clamping surface and the abutting surface, and because the abutting surface inclines relative to the axis of the umbrella rib tube body, the force F4 can be along the direction of the elastic umbrella rib teeth, and the elastic umbrella rib teeth receive non-eccentric force, so that the deformation can not occur, and the strength of the umbrella rib tube is ensured. Because the butt joint face and the second joint face are inclined planes, the contact area between the umbrella rib barrel and the baffle ring is large, the problem of stress concentration can be avoided, the connection strength is improved, and the service life of the connecting piece is ensured.

Furthermore, the included angle between the abutting surface and the axis of the umbrella rib cylinder body is consistent with the included angle between the second clamping surface and the axis of the retaining ring, so that the connection tightness between the elastic umbrella rib teeth and the retaining ring can be further improved, and the connection strength of the connecting piece is improved.

Example 3

As shown in fig. 16, in the present embodiment, two adjacent beam columns 90 need to be connected vertically, as shown in the figure, a first (second) end plate is fixed at an end of a first beam column, a second (first) end plate is fixed at one end side of a second beam column, the end plates can be connected to the beam columns by welding or bolts, an insertion rod with an umbrella rib cylinder is arranged on the first end plate, and a plug insertion hole is arranged on the second end plate. The high-strength connecting piece disclosed by the utility model can also realize the quick connection of two beams and columns in the horizontal direction.

Example 4

As shown in fig. 17, the high-strength connector disclosed by the utility model is applied to a schematic diagram of the connection of wall boards 91, and the high-strength connector disclosed by the utility model is arranged between two wall boards, so that the quick connection of the wall boards can be realized.

The application of the high-strength connecting piece disclosed by the utility model is not limited to the connection of the concrete member, the beam column and the wall plate, and can also be applied to the connection of other building or non-building members.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims (10)

1. A high-strength connecting piece is characterized in that: comprises a first end plate, a second end plate, an inserted link and an umbrella rib cylinder;

the first end plate is provided with an inserted link fixing hole;

the second end plate is provided with a plug connecting hole;

the inserted link comprises a base and a plug arranged on the base, and the base is fixedly connected with the inserted link fixing hole;

the umbrella rib cylinder comprises a sleeve-shaped umbrella rib cylinder body and a plurality of elastic umbrella rib teeth uniformly distributed at one end of the umbrella rib cylinder body, the other ends of the elastic umbrella rib teeth are free ends, the elastic umbrella rib teeth are outwards expanded from one end of the umbrella rib cylinder body to the free ends along the radial direction of the umbrella rib cylinder body, and the end surfaces of the free ends of the elastic umbrella rib teeth are butt joint surfaces; the umbrella rib cylinder is sleeved on the plug and is fixedly connected with the plug through the umbrella rib cylinder body, and the free ends of the elastic umbrella rib teeth face one end of the base;

the plug can insert in the plug connecting hole, just elasticity umbrella bone tooth with the second end board closes and is connected.

2. The high strength connector of claim 1, wherein: the second end plate is far away from plug male one end and is equipped with first joint face, the plug can insert in the plug connecting hole, just the butt face with first joint face butt.

3. The high strength connector of claim 2, wherein: when the elastic umbrella rib teeth are in an open state, the included angle between the abutting surface and the axis of the umbrella rib cylinder body is 30-80 degrees, the first clamping surface is an inclined surface arranged on the edge of the plug connecting hole far away from the end, inserted by the plug, of the plug connecting hole, and the included angle between the first clamping surface and the axis of the plug connecting hole is 30-80 degrees.

4. The high strength connector of claim 3, wherein: the included angle of the axis of the abutting surface and the umbrella rib cylinder body is consistent with the included angle of the axis of the first clamping surface and the plug connecting hole.

5. The high strength connector of claim 1, wherein: still including keeping off the ring, keep off the ring and fix in the plug connection hole, keep off the ring and keep away from plug male one end and be equipped with the second joint face, the plug can insert in the plug connection hole, just the butt face with second joint face butt.

6. The high strength connector of claim 5, wherein: when the elastic umbrella rib teeth are in an open state, the included angle between the abutting surface and the axis of the umbrella rib tube body is 30-80 degrees, and the included angle between the second clamping surface and the axis of the retaining ring is 30-80 degrees.

7. The high strength connector of claim 6, wherein: the included angle between the abutting surface and the axis of the umbrella rib tube body is consistent with the included angle between the second clamping surface and the axis of the retaining ring.

8. A high strength connector as claimed in any one of claims 1 to 7, wherein: the outer wall surface of the elastic umbrella rib teeth is of an arc-shaped structure from one end of the umbrella rib cylinder body to the free end.

9. The high strength connector of claim 1, wherein: the inserted bar and the umbrella rib cylinder are of an integrated structure; or the like, or, alternatively,

the umbrella rib tube comprises a plug and is characterized in that a first external thread is arranged on the plug, a first internal thread is arranged in an umbrella rib tube body, and the umbrella rib tube body is fixedly connected with the plug through the first external thread and the first internal thread.

10. A concrete element comprising a concrete element body, characterized in that: the high-strength connecting piece of any one of claims 1 to 9 further comprises a first end plate and a second end plate, wherein the first end plate and the second end plate are respectively fixed to two ends of the concrete member body, when two adjacent concrete members are spliced, the plug can be inserted into the plug connecting hole, and the elastic umbrella rib teeth are connected with the second end plate in a clamping mode.

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