CN214005661U

CN214005661U - Connecting assembly and connecting sleeve thereof

Info

Publication number: CN214005661U
Application number: CN202021729724.7U
Authority: CN
Inventors: 周兆弟
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2021-08-20
Anticipated expiration: 2030-08-18

Abstract

The utility model provides a coupling assembling and connecting sleeve thereof, a socket joint has been seted up to a connecting sleeve's axial tip and has been held the chamber, connecting sleeve's outer wall is provided with the locking bellying apart from this tip predetermined distance. The utility model provides a connecting sleeve can prevent effectively that connecting sleeve and concrete from sliding through increasing the locking bellying to avoid producing the clearance between precast pile and the connecting sleeve, ensure connection stability, effectively improved the bearing capacity of the terminal surface of precast pile.

Description

Connecting assembly and connecting sleeve thereof

Technical Field

The utility model relates to a construction equipment technical field, in particular to coupling assembling and connecting sleeve thereof.

Background

The existing precast pile mainly comprises a pile body, a main rib and a spiral rib. Wherein, the welding of spiral muscle is in order to form the steel reinforcement cage on main muscle, the steel reinforcement cage sets up in the pile body, the equal cover in main muscle both ends is equipped with adapter sleeve, be first adapter sleeve and second adapter sleeve respectively, main muscle and adapter sleeve are pre-buried in concrete pile body, be equipped with the peg graft pole on the second adapter sleeve, first adapter sleeve from the top down is equipped with dismantlement formula buckle closure and stop off-line mechanism in proper order, peg graft pole on one pile body runs through dismantlement formula buckle closure and the back of stopping off-line mechanism on another pile body, two pile bodies are even as an organic whole, wherein, first adapter sleeve, the peg graft pole, the second adapter sleeve, dismantlement formula buckle closure and stop off-line mechanism form coupling assembling.

However, the conventional coupling sleeve has a cylindrical structure. Because the arc outer wall of connecting sleeve is little with the interior concrete contact surface of stake, connecting sleeve does not have the joint structure in the concrete after the stake, only rely on connecting sleeve's outer wall and the frictional force of concrete to be connected, its frictional force is less, lead to connecting sleeve to slide with the concrete easily, when drawing after two precast piles are connected, draw loose connecting sleeve and concrete easily and even the slip displacement appears, thereby lead to the connection between the precast pile to produce great clearance, stability when destroying its connection, and can lead to the bearing capacity reduction of the terminal surface of precast pile.

Therefore, how to prevent the connecting sleeve from loosening with the concrete has become a problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a connecting sleeve to prevent that connecting sleeve and concrete are not hard up. The utility model also provides a coupling assembling of having above-mentioned connecting sleeve.

The utility model provides a connecting sleeve, a socket joint has been seted up to a connecting sleeve's axial tip and has been held the chamber, connecting sleeve's outer wall is provided with the locking bellying apart from this tip predetermined distance.

Optionally, in the connecting sleeve, a main rib connecting hole communicated with the socket accommodating cavity is formed in the other axial end of the connecting sleeve;

the stop lug boss is close to the joint of the socket accommodating cavity and the main rib connecting hole;

preferably, the axial depth of the socket accommodating cavity is greater than or equal to the axial depth of the main rib connecting hole.

Optionally, in the above connection sleeve, the stop protrusion includes a flange circumferentially disposed on an outer wall of the connection sleeve.

Optionally, in the above connection sleeve, a rotation stopping structure for limiting the connection sleeve to rotate circumferentially in the concrete structure is disposed on an outer wall of the connection sleeve.

Optionally, in the above connection sleeve, the rotation stopping structure includes a non-circular rotation stopping surface disposed on an outer wall of the connection sleeve;

preferably, the non-circular rotation stop surface extends from the mouth of the socket accommodating cavity to the stop lug.

Optionally, in the above connection sleeve, the non-circular rotation-stopping surface includes at least one flat surface;

the straight surface is parallel to the central axis of the connecting sleeve, or, in the socket direction of the socket accommodating cavity, the straight surface is gradually far away from or close to the central axis of the connecting sleeve.

Optionally, in the above connection sleeve, the non-circular rotation-stopping surface is an arc surface, a v-shaped surface or a groove surface.

Optionally, in the above connection sleeve, the rotation stopping structure is a groove, and the groove is a spiral groove or an annular groove arranged along the circumferential direction of the connection sleeve.

Optionally, in the above connection sleeve, the outer peripheral wall of the flange is provided with a non-circular rotation stop surface;

and/or the axial dimension value of the flange is larger than the radial wall thickness value of the flange.

The utility model also provides a connecting assembly, which comprises a connecting sleeve, wherein the connecting sleeve is the connecting sleeve as described in any one of the above items; the bearing and accommodating cavity of the connecting sleeve comprises a disengagement-preventing mechanism, a detachable buckle cover and an insertion rod.

According to the above technical scheme, the utility model provides a connecting sleeve, main muscle and the pre-buried back in concrete pile shaft of connecting sleeve, because the setting of locking bellying is on connecting sleeve's outer wall to, the radial evagination of connecting sleeve is followed to the locking bellying, makes the locking bellying block in concrete pile. Through the effective contact of locking bellying and concrete, increased the area of contact of connecting sleeve with the concrete to, make the locking bellying can block in the concrete pile, improved the location effect of connecting sleeve in the concrete pile. When drawing after two precast piles are connected, can effectively prevent connecting sleeve and concrete slip through increasing the locking bellying to avoid producing the clearance between precast pile and the connecting sleeve, ensure connection stability, effectively improved the bearing capacity of the terminal surface of precast pile.

The utility model also provides a coupling assembling, including connecting sleeve, connecting sleeve is as above-mentioned any kind of connecting sleeve. Since the connecting sleeve has the above technical effects, the connecting assembly having the connecting sleeve also has the same technical effects, and the description thereof is omitted.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic view of a first three-dimensional structure of a connection sleeve according to the present invention;

fig. 2 is a schematic view of a second three-dimensional structure of the connection sleeve according to the present invention;

fig. 3 is a schematic front view of the connecting sleeve according to the present invention;

FIG. 4 is a schematic cross-sectional view taken along the line A-A in FIG. 3;

fig. 5 is a schematic front view of a first connection sleeve according to the present invention;

fig. 6 is a schematic perspective view of a first connection sleeve according to the present invention;

fig. 7 is a schematic front view of a second connection sleeve according to the present invention;

fig. 8 is a schematic perspective view of a second connection sleeve according to the present invention;

fig. 9 is a schematic top view of a second connection sleeve according to the present invention;

fig. 10 is a schematic top view of a third connection sleeve according to the present invention;

fig. 11 is a schematic top view of a fourth connection sleeve according to the present invention;

fig. 12 is a schematic top view of a fifth connection sleeve according to the present invention;

fig. 13 is a schematic front view of a sixth connection sleeve according to the present invention;

fig. 14 is a schematic front view of a seventh connecting sleeve according to the present invention;

fig. 15 is a schematic front view of an eighth connection sleeve according to the present invention;

fig. 16 is a schematic front view of a ninth connection sleeve according to the present invention;

fig. 17 is a schematic front view of a tenth connecting sleeve according to the present invention;

fig. 18 is a schematic front view of an eleventh connection sleeve according to the present invention;

fig. 19 is a schematic front view of a twelfth connecting sleeve according to the present invention;

fig. 20 is a schematic front view of a thirteenth connection sleeve according to the present invention;

fig. 21 is a schematic sectional structure view of the connection assembly provided by the present invention.

Detailed Description

The utility model discloses a connecting sleeve to prevent that connecting sleeve and concrete from sliding. The utility model also provides a coupling assembling of having above-mentioned connecting sleeve.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 21, an embodiment of the present invention provides a connection sleeve, wherein a socket receiving cavity 31 is formed at an axial end of the connection sleeve, and a stop protrusion 2 is disposed on an outer wall of the connection sleeve at a predetermined distance from the end.

The embodiment of the utility model provides a connecting sleeve, main muscle and the pre-buried back in concrete pile body of connecting sleeve, because locking protruding portion 2 sets up on connecting sleeve's outer wall to, locking protruding portion 2 is along connecting sleeve's radial evagination, makes locking protruding portion 2 can block in the concrete pile. Through the effective contact of locking bellying 2 with the concrete, increased the area of contact of connecting sleeve with the concrete to, make locking bellying 2 can block in the concrete pile, improved the location effect of connecting sleeve in the concrete pile. When drawing after two precast piles are connected, can effectively prevent connecting sleeve and concrete slip through increasing locking bellying 2 to avoid producing the clearance between precast pile and the connecting sleeve, ensure connection stability, effectively improved the bearing capacity of the terminal surface of precast pile.

It will be appreciated that the coupling socket is adapted to be disposed at the end of the main bar, and that the removable cap 400 or the plug rod 300 is screwed into the socket receiving cavity 31 of the coupling socket during the process of connecting the removable cap 400 or the plug rod 300 to the socket receiving cavity 31.

The other axial end of the connecting sleeve is provided with a main rib connecting hole 11 communicated with the socket accommodating cavity 31; the stop lug 2 is close to the junction of the socket receiving cavity 31 and the main web connecting hole 11.

It will be understood that the connection sleeve comprises the plug section 3 and the through section 1 in an integral manner. The socket receiving chamber 31 is located inside the plug section 3, and the main reinforcement connection opening 11 is arranged on the through section 1, so that the locking projection 2 is located between the plug section 3 and the through section 1.

One end of the socket accommodating cavity 31 close to the main rib connecting hole 11 is provided with a clamping table 21 for clamping the end part of the main rib, the socket accommodating cavity 31 is provided with an internal thread structure, and the internal thread part at the opening of the socket accommodating cavity 31 is provided with a chamfer. Since the diameter of the socket receiving cavity 31 is larger than that of the main rib connecting hole 11, the locking platform 21 may have a chamfered structure from the socket receiving cavity 31 to the main rib connecting hole 11.

In this embodiment, the axial depth of the socket receiving cavity 31 is greater than or equal to the axial depth of the main web connecting hole 11. Of course, the axial depth of the socket receiving cavity 31 may be smaller than the axial depth of the main web connecting hole 11. In this embodiment, the diameter of the plug section 3 is larger than the diameter of the through section 1. The strength of the insertion section 3 can meet the requirement, and the diameter of the insertion section 3 can be smaller than that of the penetration section 1. Because be provided with the screw thread on the inner wall of grafting section 3, be used for connecting dismantlement formula buckle closure 400, grafting inserted bar 300 again, in order to guarantee joint strength, the diameter of inserted bar 300 is bigger, consequently, the internal diameter of grafting section 3 will be greater than the internal diameter that runs through section 1, and the intensity of grafting section 3 will be guaranteed, it can reach the user demand to need to ensure the wall thickness of grafting section 3, consequently, the external diameter of grafting section 3 is bigger, and run through section 1 and be used for connecting main muscle, it is smaller between the main muscle, so the wall thickness that runs through the section is thicker, consequently, the external diameter that runs through the section can be a bit less.

In this embodiment, the stop lug 2 is located on the plug section 3; the diameter of the circumcircle of the stop lug boss 2 is larger than that of the plug-in section 3. Through the arrangement, the positioning effect is further improved. It is also possible to provide the latching projections 2 on the through-section 1, which is not described in more detail here.

The stop lug 2 is located at one end of the plug section 3 close to the through section 1. Through the arrangement, the structure of the opening of the socket accommodating cavity 31 of the plug section 3 is not influenced, and the connecting effect is ensured.

It can be understood that, one end of the socket accommodating cavity 31 close to the through section 1 is provided with a clamping platform 21 for clamping the end part of the main rib, and the stop lug boss 2 is positioned at one end of the plug section 3 close to the through section 1, so that the wall thickness of the part can be effectively increased, and the structural strength is improved.

The stop boss comprises a flange circumferentially disposed around the outer wall of the connection sleeve. The flange circumferentially and annularly arranged on the outer wall of the connecting sleeve effectively improves the positioning effect. It will be appreciated that the flange is an annular structure having a first end face facing the through-section 1 (the main web) and a second end face facing away from the through-section 1 (the main web). Because of the action of tensile force, the second end face is a main stress face, and the second end face is in stress contact with concrete, so that the clamping effect of the connecting sleeve in the concrete pile is effectively improved, and the tensile bearing capacity is further improved. And for the convenience of installation, the edge of the first end surface can be provided with a chamfer structure. That is, the stopper boss 2 is connected to the outer wall of the penetration section 1 by an inclined surface.

The stop lug 2 may also comprise a bump, i.e. a single bump may be provided on the outer wall of the coupling sleeve or a plurality of bumps may be provided on the outer wall of the coupling sleeve. In an embodiment where a plurality of the protrusions are provided, the plurality of protrusions may be uniformly arranged along the circumferential direction of the coupling sleeve.

Wherein, can set up the protruding piece that the circumference ring was established and set up alone on the adapter sleeve outer wall, also can only set up above-mentioned flange or protruding piece.

The outer wall of the connecting sleeve is provided with a rotation stopping structure for limiting the circumferential rotation of the connecting sleeve in the concrete structure. Through setting up the rotation stopping structure, reduce the connecting sleeve pivoted condition to make dismantlement formula buckle closure 400 or the effective screw in connecting sleeve of grafting pole 300, ensure to connect the fastening nature, improve connection stability.

The rotation stopping structure comprises a non-circular rotation stopping surface arranged on the outer wall of the connecting sleeve, wherein the non-circular rotation stopping surface can be a cutting surface arranged on the outer wall of the connecting sleeve, and the radial cross section of the part, provided with the cutting surface, of the outer wall of the connecting sleeve is a non-circular cross section. The radial cross section of the part of the outer wall of the connecting sleeve, which is provided with the cutting surface, is a non-circular cross section, so that the rotation probability of the connecting sleeve is effectively limited. And the connecting sleeve is cut to form a rotation stopping structure, so that the material consumption of the connecting sleeve is reduced, and the cost is saved.

In a first embodiment, as shown in figures 5-6, the non-circular rotation stop surface 41 extends from the mouth of the female receiving cavity 31 to a location at least 1 unit of the size of the stop lug 2. That is, the non-circular rotation stop surface is located on the insertion section 3, and the non-circular rotation stop surface 41 does not contact the stop protrusion 2.

The non-circular rotation-stopping surface 41 extends from one end of the insertion section 3 far away from the through section 1 to the lower position of the insertion section 3, and the lower position of the insertion section 3 is at least 1 unit size away from the through section 1 or the stop bulge 2 on the insertion section 3. That is, the non-circular rotation stop surface 41 does not reach the stopper boss 2. That is, the non-circular rotation preventing surface 41 is partially cut, the non-circular rotation preventing surface 41 is provided on the insertion section 3, and the non-circular rotation preventing surface 41 does not reach the stopper projection 2.

In a first embodiment, the non-circular anti-rotation surface 41 comprises at least one flat surface. And the flat surface is parallel to the central axis of the connecting sleeve.

In the first embodiment, the number of the non-circular rotation-stopping surfaces 41 is four and is symmetrically arranged on the circumference of the insertion section 3.

In the second embodiment, as shown in fig. 7, 8 and 9, the non-circular rotation stop surface extends from the mouth of the socket receiving cavity 31 to the stop lug 2. That is, the non-circular rotation stop surface is located on the insertion section 3, and the non-circular rotation stop surface 41 is in contact with the stop protrusion 2. That is, the non-circular rotation preventing surface 41 is completely cut, the non-circular rotation preventing surface 41 is provided on the insertion section 3, and the non-circular rotation preventing surface 41 reaches the stopper projection 2.

In a second embodiment, the non-circular anti-rotation surface 41 comprises at least one flat surface. And the flat surface is parallel to the central axis of the connecting sleeve. As shown in fig. 9, the section of the outer wall of the plug section 3 is a non-circular section, thereby effectively reducing the probability of the connecting sleeve rotating in concrete.

In the second embodiment, the number of the non-circular rotation-stopping surfaces 41 is four and is symmetrically arranged on the circumference of the insertion section 3.

In a third embodiment, shown in FIG. 10, the non-circular rotation stop surface 42 is a v-surface. The part of the outer wall of the connecting sleeve, which is provided with the non-circular rotation-stopping surface 42, is the outer wall of the inserting section 3, as shown in fig. 10, the section of the outer wall of the inserting section 3 is a non-circular section, and therefore the probability of the connecting sleeve rotating in concrete is effectively reduced. In this embodiment, the centerline of the non-circular rotation stop surface 42 is parallel to the axis of the connecting sleeve. The number of the non-circular rotation-stopping surfaces 42 is four, and the non-circular rotation-stopping surfaces are symmetrically arranged on the circumferential direction of the inserting section 3.

In a fourth embodiment, as shown in FIG. 11, the non-circular rotation stop surface 43 is a grooved surface. The part of the outer wall of the connecting sleeve provided with the non-circular rotation-stopping surface 43 is the outer wall of the inserting section 3, as shown in fig. 11, the section of the outer wall of the inserting section 3 is a non-circular section, and the rotation probability of the connecting sleeve in concrete is further effectively reduced. In this embodiment, the centerline of the non-circular rotation stop surface 43 is parallel to the axis of the connecting sleeve. The number of the non-circular rotation-stopping surfaces 43 is four, and the non-circular rotation-stopping surfaces are symmetrically arranged on the circumferential direction of the inserting section 3.

In a fifth embodiment, as shown in fig. 12, the non-circular rotation stop surface 44 is an arcuate surface. The part of the outer wall of the connecting sleeve provided with the non-circular rotation-stopping surface 44 is the outer wall of the inserting section 3, as shown in fig. 12, the section of the outer wall of the inserting section 3 is a non-circular section, and therefore the probability of rotation of the connecting sleeve in concrete is effectively reduced. In this embodiment, the centerline of the non-circular anti-rotation surface 44 is parallel to the axis of the connecting sleeve. The number of the non-circular rotation-stopping surfaces 44 is four, and the non-circular rotation-stopping surfaces are symmetrically arranged on the circumferential direction of the inserting section 3.

In a sixth exemplary embodiment, as shown in fig. 13, a non-circular rotation stop surface 45 is provided which extends from one end of the plug section 3 to the other end of the plug section 3 (where the stop lug 2 is located). Also, in the present embodiment, the non-circular rotation stop surface 45 is a flat surface that is disposed obliquely with respect to the center axis of the connecting sleeve. The central line of the non-circular rotation-stopping surface 45 and the axis of the connecting sleeve form an included angle a. That is, the non-circular rotation stop surface 45 is gradually closer to the center axis of the adapter sleeve in the socket direction of the socket accommodating chamber 31. In this embodiment, the non-circular rotation stop surface 45 is an inclined surface inclined toward the center of the coupling sleeve from a direction away from the penetration section 1. In this embodiment, the number of the non-circular rotation-stopping surfaces 45 is four and the non-circular rotation-stopping surfaces are symmetrically arranged on the circumferential direction of the inserting section 3.

In this embodiment, the non-circular rotation-stopping surface 45 may also be an arc surface, a groove surface, a v surface, or the like.

In the seventh embodiment, as shown in fig. 14, a non-circular rotation stop surface 46 is provided extending from one end of the plug section 3 to the other end of the plug section 3 (where the stop protrusion 2 is located). Also, in this embodiment, the non-circular rotation stop surface is a flat surface that is disposed obliquely with respect to the central axis of the connecting sleeve. The centerline of the non-circular rotation stop surface 46 is at an angle b to the axis of the connecting sleeve. That is, the non-circular rotation stop surface 46 is gradually spaced from the center axis of the adapter sleeve in the socket direction of the socket receiving chamber 31. In this embodiment, the non-circular rotation stop surface 46 is an inclined surface inclined toward the center of the coupling sleeve from the direction close to the penetration section 1. In this embodiment, the number of the non-circular rotation-stopping surfaces 46 is four and symmetrically arranged on the circumference of the inserting section 3

In this embodiment, the non-circular rotation-stopping surface 46 may also be an arc surface, a groove surface, a v surface, or the like.

In the eighth embodiment, as shown in fig. 15, a non-circular rotation stop surface 47 is provided extending from one end of the plug section 3 to the other end of the plug section 3 (where the stop protrusion 2 is located). In the present embodiment, the non-circular rotation stop surface 47 is a curved surface. Wherein, an included angle is formed between the central line of the non-circular rotation-stopping surface 47 and the axis of the connecting sleeve. In the present embodiment, the non-circular rotation stop surface 47 is an inclined surface inclined in the radial direction of the coupling sleeve. That is, the center line of the non-circular rotation-stopping surface 47 forms an angle with the axis of the connecting sleeve, and the center line of the non-circular rotation-stopping surface 47 forms an angle with the outer contour generatrix of the connecting sleeve. In this embodiment, the number of the non-circular rotation-stopping surfaces 47 is four and symmetrically arranged on the circumferential direction of the inserting section 3.

In this embodiment, the non-circular rotation-stopping surface 47 may be a groove surface, a v-surface, or the like.

The number of the non-circular rotation-stopping surfaces is not limited, and a plurality of non-circular rotation-stopping surface arrangement structures which are symmetrically arranged are preferred.

The rotation stopping structure can also be arranged into a groove, and the groove is a spiral groove or an annular groove arranged along the circumferential direction of the connecting sleeve. Through setting up the recess, can effectively increase the area of contact of connecting sleeve's outer wall and interior concrete of stake, improve the frictional force between connecting sleeve and the concrete, reduce connecting sleeve and take place pivoted probability. In addition, the spiral groove can also cause certain resistance to the rotation of the connecting sleeve, and the probability of the rotation of the connecting sleeve is further reduced.

In the ninth embodiment, as shown in fig. 16, the groove 48 is a spiral groove provided along the circumferential direction of the coupling sleeve, and the cross section of the groove 48 is an arc-shaped surface. Wherein, a spiral groove (groove 48) extending from one end of the plug section 3 to the other end of the plug section 3 (the position of the stop protrusion 2) or a plurality of spiral grooves may be provided on the plug section 3.

In the tenth embodiment, as shown in fig. 17, the groove 49 is a spiral groove provided along the circumferential direction of the adapter sleeve, and the cross section of the groove 49 is a groove surface. In this embodiment, the groove surface includes two mutually inclined side surfaces and a bottom surface connecting the two side surfaces. The groove surface may also be referred to as a trapezoidal groove surface. The insertion section 3 may be provided with a spiral groove (groove 49) extending from one end of the insertion section 3 to the other end of the insertion section 3 (where the stop protrusion 2 is located), or may be provided with a plurality of spiral grooves.

In the eleventh embodiment, as shown in fig. 18, the groove 410 is an annular groove provided along the circumferential direction of the connecting sleeve, and the cross section of the groove 410 is a V-shaped surface. Wherein, an annular groove can be arranged on the inserting section 3; a plurality of annular grooves may also be provided, which are arranged along one end of the plug-in section 3 to the other end of the plug-in section 3 (where the stop lug 2 is located).

In the twelfth embodiment, as shown in fig. 19, the recess 411 is an annular groove provided along the circumferential direction of the connecting sleeve, and the cross section of the recess 411 is an arc-shaped surface. Wherein, an annular groove can be arranged on the plug-in section 3; a plurality of annular grooves may also be provided, which are arranged along one end of the plug-in section 3 to the other end of the plug-in section 3 (where the stop lug 2 is located).

In the thirteenth embodiment, as shown in fig. 20, the groove 412 is an annular groove provided along the circumferential direction of the connecting sleeve, and the cross section of the groove 412 is a groove surface. In this embodiment, the groove surface includes two parallel side surfaces and a bottom surface connecting the two side surfaces. The groove surface may also be referred to as a rectangular groove surface. Wherein, an annular groove can be arranged on the plug-in section 3; a plurality of annular grooves may also be provided, which are arranged along one end of the plug-in section 3 to the other end of the plug-in section 3 (where the stop lug 2 is located).

The above-described embodiment preferably provides the rotation stop structure on the outer wall of the plug section 3.

The rotation stopping structure can also be arranged on the stopping convex part 2; that is, the outer peripheral wall of the flange may be provided with a non-circular rotation stop surface; the non-circular rotation stop surface may have any of the above configurations.

Further, in order to ensure strength, the axial dimension value of the flange is greater than the radial wall thickness value thereof.

The rotation stopping structure can also be arranged on the through section 1, which is not described in detail here and is within the scope of protection. The utility model also provides a coupling assembling, including connecting sleeve, connecting sleeve is as above-mentioned any kind of connecting sleeve. The receiving cavity 31 of the connection sleeve includes a locking mechanism 700, a detachable cover 400 and a plug rod 300. Since the connecting sleeve has the above technical effects, the connecting assembly having the connecting sleeve also has the same technical effects, and the description thereof is omitted.

As shown in fig. 21, the connection assembly includes a first connection sleeve 200, a plug rod 300, a second connection sleeve 500, a removable buckle cover 400, and a disengagement preventing mechanism 700. The first connecting sleeve 200 is connected to the first main rib 100, and the second connecting sleeve 500 is connected to the second main rib 600. At least one of the first coupling sleeve 200 and the second coupling sleeve 500 is any one of the above-mentioned coupling sleeves. In this embodiment, the second connection sleeve 500 is the connection sleeve described above.

The slip-off preventing mechanism 700 includes an annular stopper 701, a support plate 702, and an elastic member 703.

The anti-drop mechanism 700 is installed in the second connecting sleeve 500, the detachable buckle cover 400 is screwed on the second connecting sleeve 500, so that the anti-drop mechanism 700 cannot drop out of the second connecting sleeve 500, the insertion rod 300 penetrates through the detachable buckle cover 400 and the anti-drop mechanism 700 during connection, and the anti-drop mechanism 700 can reversely clamp the insertion rod 300 under the combined action of the anti-drop mechanism 700 and the detachable buckle cover 400, so that the connection between the first pile body 100 and the second pile body 600 is stable, and the requirement of the anti-pull performance between the first pile body 100 and the second pile body 600 can be met.

The above is to the utility model provides a connection sleeve introduces in detail. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. A connecting sleeve is characterized in that a socket accommodating cavity is formed in one axial end of the connecting sleeve, and a stop protruding portion is arranged on the outer wall of the connecting sleeve at a preset distance from the end;

and the other axial end of the connecting sleeve is provided with a main rib connecting hole communicated with the socket accommodating cavity.

2. The coupling sleeve of claim 1 wherein said stop lug is proximate the juncture of the socket receiving cavity and the main web attachment bore.

3. The coupling sleeve of claim 2 wherein said socket receiving cavity has an axial depth greater than or equal to an axial depth of said main web coupling aperture.

4. A coupling sleeve according to any one of claims 1-3, wherein the stop lug comprises a flange circumferentially arranged around the outer wall of the coupling sleeve.

5. The connecting sleeve of claim 1 wherein said connecting sleeve has an outer wall with rotation stop means for limiting circumferential rotation of said connecting sleeve within a concrete structure.

6. The coupling sleeve of claim 5 wherein said anti-rotation structure comprises a non-circular anti-rotation surface disposed on an outer wall of said coupling sleeve.

7. The coupling sleeve of claim 6 wherein said non-circular rotation stop surface extends from a pocket of said female receiving cavity to said stop tab.

8. The coupling sleeve of claim 6 or 7 wherein said non-circular anti-rotation surface comprises at least one flat surface;

9. A connection sleeve according to claim 6 or 7, wherein said non-circular anti-rotation surface is an arcuate surface, a v-shaped surface or a grooved surface.

10. The coupling sleeve of claim 5 wherein said anti-rotation structure is a groove, said groove being a helical or annular groove disposed circumferentially of said coupling sleeve.

11. A coupling sleeve according to claim 4, wherein the peripheral wall of said flange is provided with non-circular rotation stop surfaces;

12. A connection assembly comprising a connection sleeve, wherein the connection sleeve is as claimed in any one of claims 1-11; the bearing and accommodating cavity of the connecting sleeve comprises a disengagement-preventing mechanism, a detachable buckle cover and an insertion rod.