CN215484098U

CN215484098U - Blunt button head reinforcing bar wait strong dark connector of inserting

Info

Publication number: CN215484098U
Application number: CN202121636994.8U
Authority: CN
Inventors: 龙海垚; 龙帮云; 熊炎
Original assignee: China University of Mining and Technology CUMT
Current assignee: China University of Mining and Technology CUMT
Priority date: 2021-07-19
Filing date: 2021-07-19
Publication date: 2022-01-11
Anticipated expiration: 2031-07-19

Abstract

The utility model discloses a blunt round-head steel bar equal-strength blind-mate connector, which comprises a threaded sleeve, wherein one end of the threaded sleeve is fixed with a thread head steel bar in a threaded manner, the other end of the threaded sleeve is fixed with an inserting sleeve in a threaded manner and is provided with a cylindrical cavity, one end of the inserting sleeve, which is connected with the threaded sleeve, is provided with a conical cavity and is embedded with a conical sleeve matched with the conical cavity, the center of the conical sleeve penetrates through the pier round-head steel bar, pier round-head calipers of the pier round-head steel bar are arranged on the front end surface, close to the threaded sleeve, of the conical sleeve, the conical sleeve is conical and is formed by splicing a plurality of sub-sleeves, an elastic binding band for controlling the retraction of the sub-sleeves is arranged on the circumferential outer wall of the conical sleeve, a wedge block for supporting the sub-sleeves to be annularly expanded to facilitate the insertion of the pier round-head steel bar is also arranged in the conical sleeve, and the device can realize the function of the blind-mate insertion of two steel bars, meanwhile, the stability of the connection of the steel bars is ensured, and the two steel bars are not easy to fall off and separate and break at the joint.

Description

Blunt button head reinforcing bar wait strong dark connector of inserting

Technical Field

The utility model relates to the field of steel bar connectors, in particular to an equal-strength blind-mate connector for blunt round-head steel bars.

Background

The wall body is an essential component of modern buildings, has the functions of bearing, enclosing and separating, has the functions of heat preservation, heat insulation and sound insulation, and is required to have enough strength and stability. The partition wall comprises a masonry wall body (formed by building bricks or building blocks) and a prefabricated partition plate (also called partition plate), and compared with the masonry wall body, the partition plate has the advantages of shock resistance, sound insulation, fire resistance, environmental protection, energy conservation and economy, and is vigorously popularized by China; meanwhile, the miniaturization and standardization of partition boards and the standardization and mechanization of installation are development directions; in the partition plate installation, through wearing the prestressing tendons in the partition plate inside to utilize the connector to connect prestressing tendons formation prestressing force connector in each partition plate, and then guarantee that the partition plate who connects becomes a stable whole, prestressing tendons between the adjacent partition plate is because can't see, can't touch in the connection process some, need carry out the connection of inserting secretly, and lack the similar connector that can carry out the blind insertion on the current market.

SUMMERY OF THE UTILITY MODEL

Aiming at the technical defects, the utility model aims to provide a connector for the hidden insertion of blunt round-head steel bars and other strong hidden insertion, which can realize the hidden insertion function of two steel bars, ensures the connection stability of the steel bars and ensures that the two steel bars are not easy to fall off and separate and break at the connection position.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a blunt round-head steel bar equal-strength blind-mate connector which comprises a threaded sleeve, wherein one end of the threaded sleeve is fixed with a thread head steel bar in a threaded manner, the other end of the threaded sleeve is fixed with an inserting sleeve in a threaded manner and is provided with a cylindrical cavity, one end of the inserting sleeve, which is connected with the threaded sleeve, is provided with a conical cavity and is embedded with a conical sleeve matched with the conical cavity, the center of the conical sleeve penetrates through the pier round-head steel bar, pier round-head calipers of the pier round-head steel bar are arranged on the front end face, close to the threaded sleeve, of the conical sleeve, the conical sleeve is conical and is formed by splicing a plurality of sub-sleeves, an elastic binding band for controlling the retraction of the sub-sleeves is arranged on the circumferential outer wall of the conical sleeve, and a wedge block for annularly expanding the sub-sleeve to facilitate the insertion of the pier round head is further arranged in the conical sleeve.

Preferably, the threaded sleeve is a hexagonal prism, an external thread matched with the plug-in sleeve is arranged on the outer wall of one end of the threaded sleeve along the axis direction of the threaded sleeve, and a threaded through hole for connecting a threaded head steel bar is formed in the other end of the threaded sleeve.

Preferably, the shape of the plug-in sleeve is a hexagonal prism, an annular cavity is formed in one end of the plug-in sleeve along the axis direction of the plug-in sleeve, a cylindrical cavity communicated with the annular cavity and the conical cavity is further arranged between the annular cavity and the conical cavity, the inner diameter of the cylindrical cavity is smaller than the maximum inner diameter of the annular cavity and the conical cavity, and an internal thread matched with the threaded sleeve is arranged on the inner wall of the annular cavity.

Preferably, the one end of grafting sleeve far away from the screw sleeve is opened has the first loudspeaker chamber that conveniently takes one's place when the mound button head reinforcing bar is inserted secretly, the centre of grafting sleeve is equipped with the central through-hole of intercommunication first loudspeaker chamber and toper cavity.

Preferably, the center of the conical sleeve is provided with a second horn cavity which is convenient for the hidden insertion of the pier round-head steel bar to be positioned conveniently.

Preferably, when the wedge block is embedded in the conical sleeve, the maximum outer diameter of the front end face of the conical sleeve is matched with the maximum outer diameter of the conical cavity, and when the sub-sleeve of the conical sleeve clamps the heading round-head steel bar, the maximum outer diameter of the front end face of the conical sleeve is the same as the inner diameter of the cylindrical cavity.

Preferably, the annular outer wall of the conical sleeve is provided with an annular groove for embedding the elastic belt.

Preferably, the length of the external thread of the threaded sleeve is greater than that of the internal thread of the annular cavity on the plug sleeve.

The utility model has the beneficial effects that: this connector simple structure is practical, and it utilizes the expansion contraction function of toper sleeve cooperation elasticity band to ingenious use voussoir withstands the telescopic sublevel of toper, makes sublevel dispersion, has realized passing through fast and the quick meshing of mound button head reinforcing bar, utilizes the reaction force between hammer-shaped sleeve and the toper cavity simultaneously, makes the hammer-shaped sleeve press from both sides tight mound button head reinforcing bar, and this device has guaranteed steel bar connection's stability and security, has still realized two reinforcing bars simultaneously and has carried out the function of inserting secretly.

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 structural view of a strong blind-mate connector such as a blunt round-headed steel bar according to an embodiment of the present invention (a cross-sectional view when the blunt round-headed steel bar is tensioned);

fig. 2 is a schematic structural view of a strong blind-mate connector such as a blunt round-headed steel bar according to an embodiment of the present invention (a cross-sectional view when a wedge is pushed open by a truncated round head);

fig. 3 is a schematic structural view (original state view) of a strong blind-mate connector such as a blunt round-head reinforcing steel bar according to an embodiment of the present invention;

fig. 4 is an external view of a strong blind-mate connector such as a blunt round-head reinforcing steel bar according to an embodiment of the present invention;

fig. 5 is an outline view of a strong blind-mate connector such as a blunt round-head reinforcing steel bar according to an embodiment of the present invention;

FIG. 6 is a schematic structural view (cross-sectional view) of a threaded sleeve provided in an embodiment of the present invention;

fig. 7 is a schematic structural view (cross-sectional view) of a socket sleeve according to an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a tapered sleeve according to an embodiment of the present invention;

FIG. 9 is a schematic structural view (cross-sectional view) of a tapered sleeve provided in accordance with an embodiment of the present invention;

fig. 10 is a schematic structural view of a screw-headed steel bar according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of an upset-headed steel bar according to an embodiment of the present invention.

Description of reference numerals:

1. a threaded sleeve; 11. a threaded through hole; 12. a cylindrical cavity; 2. inserting a sleeve; 21. an annular cavity; 22. a tapered cavity; 23. a first horn chamber; 24. a cylindrical cavity; 3. a wedge block; 4. a tapered sleeve; 41. a sub-sleeve; 42. an elastic band; 43. a second horn chamber; 5. a thread end reinforcing steel bar; 6. upsetting round-head steel bars; 61. the pier is round head.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 11, a strong blind-mate connector such as a blunt-headed steel bar, comprises a threaded sleeve 1, one end of the threaded sleeve 1 is fixed with a thread head reinforcing steel bar 5 through threads, the other end of the threaded sleeve 1 is fixed with an inserting sleeve 2 through threads and is provided with a cylindrical cavity 12, one end of the plug-in sleeve 2 connected with the threaded sleeve 1 is provided with a conical cavity 22 and is embedded with a conical sleeve 4 matched with the conical cavity, the center of the conical sleeve 4 penetrates through the pier round-head steel bar 6, the pier round head 61 of the pier round-head steel bar 6 is clamped on the front end surface of the conical sleeve 4 close to the threaded sleeve 1, the conical sleeve 4 is conical and formed by splicing three sub-sleeves 41, an elastic belt 42 for controlling the retraction of the sub-sleeves 41 is arranged on the circumferential outer wall of the conical sleeve 4, the tapered sleeve 4 is also internally provided with a wedge 3 which is used for annularly expanding the sub-sleeve 41 and is convenient for inserting the pier round head 61.

The threaded sleeve 1 is in a hexagonal prism shape, an external thread matched with the inserting sleeve 2 is arranged on the outer wall of one end of the threaded sleeve 1 in the axis direction, and a threaded through hole 11 used for connecting a threaded head reinforcing steel bar 5 is formed in the other end of the threaded sleeve 1.

The shape of the plug-in sleeve 2 is a hexagonal prism, an annular cavity 21 is formed in one end of the plug-in sleeve along the axial direction of the plug-in sleeve, a cylindrical cavity 24 for communicating the annular cavity 21 and the conical cavity 22 is further arranged between the annular cavity 21 and the conical cavity 22, the inner diameter of the cylindrical cavity 24 is smaller than the maximum inner diameter of the annular cavity 21 and the conical cavity 22, and an internal thread matched with the threaded sleeve 1 is arranged on the inner wall of the annular cavity 21.

One end of the inserting sleeve 2 far away from the threaded sleeve 1 is provided with a first horn cavity 23 convenient to place when the pier round-head steel bar 6 is inserted in a hidden mode, and the middle of the inserting sleeve 2 is provided with a central through hole for communicating the first horn cavity 23 with the conical cavity 22.

The center of the conical sleeve 4 is provided with a second horn cavity 43 which is convenient for the hidden insertion of the pier round-head steel bar 6 to be positioned.

When the wedge 3 is embedded into the conical sleeve 4, the maximum outer diameter of the front end face of the conical sleeve is matched with the maximum outer diameter of the conical cavity 22, and when the sub-sleeve 41 of the conical sleeve 4 clamps the pier round-head steel bar 6, the maximum outer diameter of the front end face of the conical sleeve is the same as the inner diameter of the cylindrical cavity 24.

An annular groove for embedding the elastic belt 42 is arranged on the annular outer wall of the conical sleeve 4.

The length of the external thread of the threaded sleeve 1 is greater than that of the internal thread of the annular cavity 21 on the plug-in sleeve 2.

In the using process, the two steel bars are designed into the shapes of a thread head steel bar 5 and a pier round head steel bar 6, the thread head steel bar 5 is connected with the threaded sleeve 1, the pier round head steel bar 6 is inserted into the inserting sleeve 2 through the first horn cavity 23 and penetrates into the second horn cavity 43 of the conical sleeve 4, the three sub-sleeves 41 are opened due to the existence of the wedge 3, the pier round head 61 conveniently enters the second horn cavity 43 and pushes out the wedge 3, the pier round head 61 penetrates through the conical sleeve 4, and in the process, the maximum inner diameter of the front end of the conical cavity 22 is larger than the inner diameter of the cylindrical cavity 24, and the conical sleeve 4 is clamped to limit forward movement; after the pier round head 61 passes the conical sleeve 4, because the existence of elastic bridle 42, three sub-sleeves 41 retract rapidly under the restraint of elastic bridle 42, and sub-sleeve 41 presss from both sides tight pier round head reinforcing bar 6, exerts right pulling force to pier round head reinforcing bar 6 this moment, and pier round head reinforcing bar 6 drives conical sleeve 4 and moves right, and toper cavity 22 exerts reverse acting force to conical sleeve 4 and makes conical sleeve 4 press from both sides tight pier round head reinforcing bar 6, finally realizes the connection of inserting secretly of two reinforcing bars.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The utility model provides a strong blind plug connector such as blunt button head reinforcing bar, its characterized in that includes threaded sleeve (1), wherein one end screw thread fixed screw thread head reinforcing bar (5) of threaded sleeve (1), the other end screw thread fixed grafting sleeve (2) of threaded sleeve (1) and open and have cylindricality cavity (12), the one end that grafting sleeve (2) is connected threaded sleeve (1) is opened there is toper cavity (22) and is embedded with the taper sleeve (4) rather than the adaptation, the center of taper sleeve (4) runs through mound button head reinforcing bar (6), mound button head (61) calliper of mound button head reinforcing bar (6) is on the preceding terminal surface that taper sleeve (4) is close to threaded sleeve (1), taper sleeve (4) are the toper and are formed by the concatenation of a plurality of sub-sleeves (41), be equipped with on the hoop outer wall of taper sleeve (4) and be used for controlling the elasticity band (42) that sub-sleeve (41) retract, the tapered sleeve (4) is also internally provided with a wedge block (3) which is used for annularly opening the sub-sleeve (41) and is convenient for inserting the pier round head (61).

2. The connector as claimed in claim 1, wherein the threaded sleeve (1) is a hexagonal prism, an external thread adapted to the socket sleeve (2) is provided on an outer wall of one end of the threaded sleeve along the axial direction of the threaded sleeve, and a threaded through hole (11) for connecting the thread-headed steel bar (5) is provided on the other end of the threaded sleeve (1).

3. The connector as claimed in claim 1, wherein the plug sleeve (2) is a hexagonal prism, an annular cavity (21) is formed at one end of the plug sleeve along the axial direction of the plug sleeve, a cylindrical cavity (24) communicating the annular cavity (21) and the conical cavity (22) is further arranged between the annular cavity (21) and the conical cavity (22), the inner diameter of the cylindrical cavity (24) is smaller than the maximum inner diameter of the annular cavity (21) and the conical cavity (22), and an internal thread adapted to the threaded sleeve (1) is arranged on the inner wall of the annular cavity (21).

4. The connector is characterized in that one end of the plug sleeve (2) far away from the threaded sleeve (1) is provided with a first horn cavity (23) which is convenient for the plug of the truncated-cone-shaped steel bar (6) to be positioned conveniently, and a central through hole which is communicated with the first horn cavity (23) and the conical cavity (22) is formed in the middle of the plug sleeve (2).

5. The connector as claimed in claim 1, wherein the tapered sleeve (4) has a second flared cavity (43) at its center for facilitating the insertion of the upset-headed bar (6).

6. The connector of claim 1, wherein the maximum outer diameter of the front end face of the tapered sleeve (4) fits the maximum outer diameter of the tapered cavity (22) when the wedge (3) is inserted into the tapered sleeve (4), and the maximum outer diameter of the front end face of the tapered sleeve (4) is the same as the inner diameter of the cylindrical cavity (24) when the sub-sleeve (41) clamps the upset round-head reinforcement (6).

7. The blunt-tipped rebar equal-strength blind-mate connector as claimed in claim 1, wherein the circumferential outer wall of the conical sleeve (4) is provided with an annular groove in which the elastic tie (42) is embedded.

8. The blunt-tipped rebar equal-strength blind-mate connector as claimed in claim 1, characterized in that the length of the external thread of the threaded sleeve (1) is greater than the length of the internal thread of the annular cavity (21) of the plug-in sleeve (2).