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CN-122013935-A - Reinforcing steel bar connecting device

CN122013935ACN 122013935 ACN122013935 ACN 122013935ACN-122013935-A

Abstract

The invention relates to a steel bar connecting device, which relates to the technical field of steel bar connecting processing, and aims to solve the problems that the steel bar end at one end is spliced by a first connecting sleeve, the steel bar end at the other end is spliced by a second connecting sleeve, an outer sleeve is clamped with the second connecting sleeve, an inner sleeve is clamped with the first connecting sleeve, when the inner sleeve is rotatably spliced into the outer sleeve, the first connecting sleeve is driven to move towards the second connecting sleeve, the distance between the first connecting sleeve and the second connecting sleeve is shortened, the steel bar end at one end is spliced by the first connecting sleeve, the steel bar end at the other end is spliced by the second connecting sleeve, the contact of the steel bar end at the two ends is realized, the requirements of industry standard JGJ107-2026 are met, the structural strength after the connection is effectively improved, and the use requirements of different environments of users are met.

Inventors

  • XIE YANWEI

Assignees

  • 河北智建机械制造有限公司

Dates

Publication Date
20260512
Application Date
20251209

Claims (10)

  1. 1. The steel bar connecting device is characterized by comprising an outer sleeve (1), an inner sleeve (4), a first connecting sleeve (2) and a second connecting sleeve (3), wherein the first connecting sleeve (2) is inserted into a steel bar end at one end, the second connecting sleeve (3) is inserted into a steel bar end at the other end, the outer sleeve (1) is clamped with the second connecting sleeve (3), the inner sleeve (4) is clamped with the first connecting sleeve (2), and the inner sleeve (4) is inserted into the outer sleeve (1) to realize connection of steel bar ends at two ends.
  2. 2. A reinforcing bar coupler according to claim 1, wherein the first coupling sleeve (2) is rotatable inside the inner sleeve (4).
  3. 3. A reinforcing bar coupler according to claim 2, wherein the second coupling sleeve (3) is rotatable inside the outer jacket (1).
  4. 4. A reinforcing bar connecting device according to claim 3, characterized in that the outer sleeve (1) comprises a first supporting wall (11), a first connecting surface (14) and a second connecting surface (17) are respectively arranged at two axial ends of the first supporting wall (11), the first connecting surface (14) and the second connecting surface (17) are of a circular ring structure, a first thread (16), a first inner wall (15) and a second inner wall (19) are arranged in the first supporting wall (11), the first thread (16) is arranged at one end close to the first connecting surface (14), the second inner wall (19) is arranged at one end close to the second connecting surface (17), a first concave table (12) is arranged between the first thread (16) and the second inner wall (19) and between the first inner wall (15) and the second inner wall (19).
  5. 5. A reinforcing bar connecting device according to claim 3, wherein the first connecting sleeve (2) is hollow, a third connecting surface (26) and a fourth connecting surface (29) are respectively arranged at two axial ends, the third connecting surface (26) and the fourth connecting surface (29) are of circular ring-shaped structures, the outer diameter of the circular ring-shaped structures of the third connecting surface (26) is smaller than that of the fourth connecting surface (29), a third inner wall (28) is arranged inside the first connecting sleeve (2), a second thread (27) is arranged at one end, close to the fourth connecting surface (29), of the third inner wall (28), a first outer wall (21), a second outer wall (23) and a third outer wall (25) are arranged on the outer wall of the first connecting sleeve (2), the first outer wall (21) is arranged at one end, close to the fourth connecting surface (29), the third outer wall (25) is arranged at one end, close to the third connecting surface (26), and the second outer wall (23) is arranged between the first outer wall (21) and the third outer wall (25).
  6. 6. The steel bar connecting device according to claim 5, wherein the diameter of the first outer wall (21) is larger than that of the second outer wall (23), the diameter of the second outer wall (23) is larger than that of the third outer wall (25), a third concave table (22) is arranged between the first outer wall (21) and the second outer wall (23), and a fourth concave table (24) is arranged between the third outer wall (25) and the second outer wall (23).
  7. 7. A reinforcing bar connecting device according to claim 3, wherein the second connecting sleeve (3) is hollow, a fifth connecting surface (37) and a sixth connecting surface (38) are respectively arranged at two axial ends, the fifth connecting surface (37) and the sixth connecting surface (38) are of circular ring structures, the outer diameter of the circular ring structures of the fifth connecting surface (37) is smaller than that of the sixth connecting surface (38), a third thread (36) is arranged in the second connecting sleeve (3), a fourth outer wall (31), a fifth outer wall (33) and a sixth outer wall (35) are arranged on the outer wall of the second connecting sleeve (3), the fourth outer wall (31) is arranged at one end close to the fifth connecting surface (37), the sixth outer wall (35) is arranged at one end close to the sixth connecting surface (38), and the fifth outer wall (33) is arranged between the fourth outer wall (31) and the sixth outer wall (35).
  8. 8. A reinforcing bar coupler according to claim 7, wherein the fourth outer wall (31) has a larger diameter than the fifth outer wall (33), the fifth outer wall (33) has a larger diameter than the sixth outer wall (35), a fifth recess (32) is provided between the fourth outer wall (31) and the fifth outer wall (33), and a sixth recess (34) is provided between the sixth outer wall (35) and the fifth outer wall (33).
  9. 9. A reinforcing steel bar connecting device according to claim 3, wherein the inner sleeve (4) is hollow, a fourth inner wall (46) is arranged in the inner sleeve, a seventh connecting surface (45) and an eighth connecting surface (48) are respectively arranged at two axial ends of the inner sleeve (4), the seventh connecting surface (45) and the eighth connecting surface (48) are of annular structures, an eighth outer wall (43) is arranged outside one end, close to the seventh connecting surface (45), of the inner sleeve (4), a seventh outer wall (42) is arranged outside one end, close to the eighth connecting surface (48), of the inner sleeve (4), a fourth thread (47) is arranged on the outer wall, close to one end, of the eighth outer wall (43), of the seventh outer wall (42), and a clamping table (41) is arranged on the outer wall, close to one end, close to the eighth outer wall (43).
  10. 10. A reinforcing bar coupler according to claim 1, wherein the first coupling surface (14) has a circular ring-like structure having an inner diameter larger than that of the second coupling surface (17).

Description

Reinforcing steel bar connecting device Technical Field The invention relates to the technical field of steel bar connection processing, in particular to a steel bar connection device. Background Quick connection of reinforcing steel bars is a new requirement in the building construction process in recent years. The steel bars are connected quickly, so that the construction period can be shortened greatly, and the economic benefit is improved. The current common steel bar connection mode is straight thread sleeve connection. The straight thread sleeve connection is a connection mode that the steel bars and the sleeve are connected through threads, and specifically comprises the steps of threading the steel bar ends to form external threads, threading the sleeve to form internal threads, respectively splicing the steel bar ends at two ends of the existing straight thread sleeve connection, enabling the steel bar ends at two ends to be adjacent by means of threads, and connecting the steel bar ends at two ends in a threaded mode, so that the spliced steel bars are basically the same as normal steel bar parameters. In addition, the industry standard JGJ107-2026 specifies that the requirement for rebar junctions is that rebar ends at both ends within the sleeve be immediately adjacent, and that rebar at both sides of the sleeve must not have exposed threads. However, with the great use of the connecting sleeve, the connecting sleeve in the prior art still has a plurality of defects and problems, and further popularization and application are limited, when the two ends of the straight thread sleeve are connected into a steel bar combination structure, as the steel bar ends at the two ends are fixed and can not rotate, the connecting process is realized by means of self rotation of the straight thread sleeve, after the steel bar ends at one end are inserted into the straight thread sleeve, the steel bar ends at the other end are reversely connected, the exposed threads of the steel bar ends at the initial inserted end extend out of the sleeve, meanwhile, the condition that the steel bar ends at the two ends in the sleeve are close to each other can not be ensured, and the structural strength after the connection is difficult to meet the technical problems of different environment use requirements of users. In view of the foregoing, there is a strong need for a reinforcing bar coupler for solving the above problems. Disclosure of Invention Aiming at the defects of the prior art, the invention provides a steel bar connecting device, which solves the technical problems that when the two ends of the straight thread sleeve are connected into a steel bar combined structure, as the steel bar ends at the two ends are fixed and can not rotate, the connecting process is realized by means of self rotation of the straight thread sleeve, after the steel bar ends at one end are inserted into the straight thread sleeve, when the steel bar ends at the other end are connected in a reverse direction, exposed threads are led to extend out of the sleeve at the steel bar ends at the initial inserting end, meanwhile, the condition that the steel bar ends at the two ends in the sleeve are close can not be ensured, and the structural strength after the connection is difficult to meet the use requirements of different environments of users. The technical scheme is that the steel bar connecting device comprises an outer sleeve, an inner sleeve, a first connecting sleeve and a second connecting sleeve, wherein the first connecting sleeve is inserted into a steel bar end at one end, the second connecting sleeve is inserted into a steel bar end at the other end, the outer sleeve is clamped with the second connecting sleeve, the inner sleeve is clamped with the first connecting sleeve, and the inner sleeve is inserted into the outer sleeve to realize connection of the steel bar ends at two ends. The jacket comprises a first supporting wall, wherein the inside of the first supporting wall is hollow, a first connecting surface and a second connecting surface are respectively arranged at two axial ends of the first supporting wall, the first connecting surface and the second connecting surface are of circular structures, a first thread, a first inner wall and a second inner wall are arranged in the first supporting wall, the first thread is arranged at one end close to the first connecting surface, the second inner wall is arranged at one end close to the second connecting surface, the first inner wall is arranged between the first thread and the second inner wall, and a first concave table is arranged between the first inner wall and the second inner wall. The first connecting sleeve is hollow, a third connecting surface and a fourth connecting surface are respectively arranged at two axial ends, the third connecting surface and the fourth connecting surface are of circular ring structures, the outer diameter of the circular ring structures of