Adjustable high-strength steel bar connection joint

Abstract

The present invention discloses an adjustable high-strength steel bar connection joint, which relates to the technical field of high-strength steel bar connection. It solves the problem that after using a tool to rotate the threaded connection sleeve to a certain angle, it will be blocked by other steel bars, and the tool needs to be removed multiple times to rotate the threaded sleeve by the rotating angle, which makes the steps cumbersome and inefficient when assembling the threaded sleeve. The present invention includes a threaded joint, and the outer side of the threaded joint is fixedly equipped with a plurality of protrusions equidistantly distributed around the circumference; the present invention can rotate the rotating part after rotating the threaded joint to a certain angle by installing a rotating part and a plug-in component, so that the threaded joint can be rotated continuously, the operation is simple and convenient, and the assembly efficiency of the threaded joint can be effectively improved; by installing a limit component, the pin can be prevented from being separated from the plug-in seat during the rotation process; by providing a detachable structure of the rotating part, it is convenient to disassemble the rotating part after assembling the threaded joint, and the rotating part of the threaded joint can be used multiple times conveniently.

Description

Technical Field

[0001] The invention relates to the technical field of high-strength steel bar connection, in particular to an adjustable high-strength steel bar connection joint. Background Art

[0002] High-strength rebar refers to steel used in reinforced concrete and prestressed concrete. High-strength rebar can be connected using four main methods: lap splicing, mechanical splicing, sleeve grouting, and welding. Mechanical splicing typically involves connecting two sections of high-strength rebar using a threaded sleeve.

[0003] The existing steps for connecting two sections of high-strength steel bars through a threaded sleeve are: first, the threaded sleeve is rotated and sleeved on the first steel bar, and then the second steel bar is rotated onto the threaded sleeve.

[0004] However, when rotating the threaded connection sleeve onto the steel bar, a tool similar to a wrench is used to save effort when rotating the threaded sleeve. However, due to the dense distribution of high-strength steel bars on the construction site, after the threaded connection sleeve is rotated by a certain angle using the tool, it will be blocked by other steel bars, and the tool needs to be removed and rotated several times to rotate the threaded sleeve. This makes the steps for assembling the threaded sleeve cumbersome and inefficient. Summary of the Invention

[0005] The object of the present invention is to provide an adjustable high-strength steel bar connection joint that is easy to assemble, so as to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An adjustable high-strength steel bar connection joint includes a threaded joint, the outer side of which is fixedly mounted with a plurality of protrusions equidistantly distributed around the circumference, a rotating portion being sleeved on the outer side of the threaded joint corresponding to the outer sides of the protrusions, the rotating portion comprising a semicircular collar 1 and a semicircular collar 2 movably sleeved on the outer side of the threaded joint, a socket being fixedly embedded on the outer side of the semicircular collar 1, a pin being inserted at the upper end of the socket, a plug-in assembly being installed at the lower end of the pin being located inside the socket, and protective structures for protecting the internal threads of the threaded joint being embedded at both ends.

[0008] Preferably, the length of the protrusion is equal to the width of the inner wall of semicircular ring one and semicircular ring two, and the plug-in assembly includes a plug-in block that is movably embedded in the inner wall of semicircular ring one and can move up and down, and the plug-in block can be inserted into the gap between two adjacent protrusions. The upper end of the plug-in block is fixedly sleeved with a connecting column, and the upper end of the connecting column is located inside the socket and fixedly connected to a gasket.

[0009] Preferably, a plurality of limit sliders equidistantly distributed around the circumference are provided on the outside of the gasket, and the limit slider and the gasket are an integrally formed structure. The limit slider is slidably connected to the plug-in seat through a reserved straight groove. The limit slider can prevent the plug-in block from rotating. The lower end of the gasket is movably abutted against spring 2, and the end of the spring 2 away from the gasket is movably abutted against the plug-in seat.

[0010] Preferably, two symmetrically distributed limit assemblies are installed on the upper side of the plug-in assembly located inside the socket, and the limit assemblies include a top bead that is movably embedded in the inner wall of the socket and can move left and right. The top bead is located inside the socket and is fixedly connected to an anti-slip piece 2 at one end, which can prevent the top bead from falling off the socket.

[0011] Preferably, a metal spring is fixedly embedded on the side of the second anti-slip piece away from the top bead, and one end of the metal spring away from the second anti-slip piece is movably abutted against the socket, two symmetrically distributed limiting straight grooves are provided on the outer side of the pin, and the top bead is slidably connected to the pin through the limiting straight grooves. When the top bead is embedded in the limiting straight grooves, the pin can be prevented from falling off the socket.

[0012] Preferably, the semicircular ring 1 and the semicircular ring 2 are movably hinged through a hinge seat, and the outer side of the end of the semicircular ring 1 away from the hinge seat is fixedly installed with a connecting seat 1, and the outer side of the end of the semicircular ring 2 away from the hinge seat is fixedly installed with a connecting seat 2, and a U-shaped pin is installed inside the connecting seat 1, and the U-shaped pin is pluggably connected to the connecting seat 2 through a circular through hole. When the U-shaped pin is inserted into the connecting seat 2, the semicircular ring 1 and the semicircular ring 2 are in a closed state.

[0013] Preferably, the U-shaped pin is located inside the connecting seat and is fixedly connected to an anti-slip piece at one end, the outside of the U-shaped pin is located inside the connecting seat and is movably sleeved with a spring, and the two ends of the spring are respectively movably abutted against the connecting seat and the anti-slip piece, the anti-slip piece can increase the contact surface between the spring and the U-shaped pin, a pull ring is fixedly welded to the outside of the U-shaped pin, the U-shaped pin consists of two straight parts and an arc part, and the length of one straight part of the U-shaped pin is half of the other straight part.

[0014] Preferably, the protective structure includes a cover plate that is movably abutted against the end of the threaded joint, an annular airbag is fixedly adhered to the side of the cover plate close to the threaded joint, and the annular airbag is located inside the threaded joint. The annular airbag can be movably abutted against the inner wall of the threaded joint, a connecting piece is fixedly adhered to the side of the annular airbag away from the cover plate, and the annular airbag is only partially adhered to the cover plate and the connecting piece, and a connecting rod is fixedly embedded in the center of one side of the connecting piece close to the annular airbag.

[0015] Preferably, the connecting rod passes through the cover plate, and the connection between the connecting rod and the cover plate is a plug-in connection. A pressing plate is fixedly sleeved on one end of the connecting rod away from the connecting plate. The outer side of the connecting rod is located between the cover plate and the pressing plate and is movably sleeved with a spring three, and the two ends of the spring three are respectively movably abutted against the cover plate and the pressing plate. The pressing plate can increase the contact surface between the spring three and the connecting rod.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention installs a rotating part and a plug-in assembly, and the pin in the rotating part cooperates with the plug-in assembly, so that the rotating part can be rotated after the threaded joint is rotated a certain angle, thereby being able to continuously rotate the threaded joint. The operation is simple and convenient, and the assembly efficiency of the threaded joint can be effectively improved.

[0018] 2. The present invention installs a limit assembly. When the pin in the rotating part rotates the semicircular ring 1 and the semicircular ring 2, the top bead in the limit assembly is embedded in the limit straight groove, which can prevent the pin from being separated from the socket during the rotation process.

[0019] 3. The present invention provides a detachable structure for the rotating part, which is conducive to disassembling the rotating part after assembling the threaded joint, making it convenient to use the rotating part of the threaded joint multiple times and effectively avoiding waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an overall schematic diagram of the threaded joint of the present invention;

[0021] Figure 2 This is a schematic diagram of the assembly of the rotating part, protective structure and threaded sleeve of the present invention;

[0022] Figure 3 It is a side cross-sectional view of an upper plug socket of a semicircular collar according to the present invention;

[0023] Figure 4 For the present invention Figure 3 A magnified schematic diagram of point A in the middle;

[0024] Figure 5 For the present invention Figure 4Schematic diagram of the enlarged split at B in the middle;

[0025] Figure 6 This is a schematic diagram of the opening of the rotating part of the present invention;

[0026] Figure 7 It is a side cross-sectional schematic diagram of a connecting seat in the rotating part of the present invention;

[0027] Figure 8 It is an overall schematic diagram of the protective structure of the present invention.

[0028] In the figure: 1. threaded joint; 2. protrusion; 3. rotating part; 301. semicircular collar 1; 302. semicircular collar 2; 303. hinged seat; 304. plug-in seat; 305. connecting seat 1; 306. connecting seat 2; 307. U-shaped latch; 308. anti-slip sheet 1; 309. spring 1; 310. pull ring; 311. pin; 4. plug-in assembly; 401. plug-in block; 402. connecting column; 403. gasket; 404. limiting slider; 405. spring 2; 5. limiting assembly; 501. top bead; 502. anti-slip sheet 2; 503. metal spring; 6. protective structure; 601. cover plate; 602. annular airbag; 603. connecting sheet; 604. connecting rod; 605. pressing sheet; 606. spring 3; 7. limiting straight groove. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Example 1

[0031] See also Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The figure shows an adjustable high-strength steel bar connection joint, including a threaded joint 1, a plurality of circumferentially equidistantly distributed protrusions 2 are fixedly installed on the outside of the threaded joint 1, and a rotating part 3 is sleeved on the outside of the corresponding protrusions 2 on the outside of the threaded joint 1. The rotating part 3 includes a semicircular ring 1 301 and a semicircular ring 2 302 movably sleeved on the outside of the threaded joint 1, and a plug-in seat 304 is fixedly embedded on the outside of the semicircular ring 1 301. The upper end of the plug-in seat 304 is plugged with a pin 311, and the lower end of the pin 311 is located inside the plug-in seat 304 and a plug-in component 4 is installed. The two ends of the threaded joint 1 are respectively embedded with a protective structure 6 for protecting the internal thread of the threaded joint 1.

[0032] See also Figure 3 The length of the protrusion 2 is equal to the inner wall width of the semicircular ring 1 301 and the semicircular ring 2 302. The plug-in assembly 4 includes a plug-in block 401 that is movably embedded in the inner wall of the semicircular ring 1 301 and can move up and down, and the plug-in block 401 can be inserted into the gap between two adjacent protrusions 2. The upper end of the plug-in block 401 is fixedly sleeved with a connecting column 402, and the upper end of the connecting column 402 is located inside the plug-in seat 304 and is fixedly connected to a gasket 403.

[0033] See also Figure 4 , a plurality of limit sliders 404 are provided on the outside of the gasket 403 and are equidistantly distributed around the circumference, and the limit slider 404 and the gasket 403 are an integrally formed structure, and the limit slider 404 is slidably connected to the plug-in seat 304 through a reserved straight groove. The limit slider 404 can prevent the plug-in block 401 from rotating, and the lower end of the gasket 403 is movably abutted against a spring 2 405, and the end of the spring 2 405 away from the gasket 403 is movably abutted against the plug-in seat 304.

[0034] The working principle of the high-strength steel bar connection joint is convenient for assembly: when rotating the threaded joint 1 to be installed on the high-strength steel bar, the user applies pressure to the plug-in component 4 through the pin 311. The plug-in block 401 in the plug-in component 4 is inserted into the gap between the two adjacent protrusions 2 under the action of pressure. At this time, the user rotates the plug-in seat 304 through the pin 311. At this time, since the plug-in block 401 is inserted between the two protrusions 2, the pin 311 can drive the threaded joint 1 to rotate through the plug-in block 401 and the protrusion 2. When the pin 311 is blocked by other steel bars after rotating a certain angle, the user will act on the pin 3 When the pressure on 11 is removed, the plug-in block 401 will move upward under the drive of the second spring 405 and disengage from the gap between the two protrusions 2. The semicircular ring 1 301 and the semicircular ring 2 302 can rotate around the threaded joint 1. At this time, the user drives the plug-in seat 304 to rotate to the starting position through the pin 311. Thereafter, the user applies pressure to the plug-in assembly 4 through the pin 311 to insert the plug-in block 401 into the gap between the two protrusions 2 again, and continue to drive the threaded joint 1 to rotate, thereby being able to continuously rotate the threaded joint 1. The operation is simple and convenient, and can effectively improve the assembly efficiency of the threaded joint 1.

[0035] Example 2

[0036] See also Figure 4 Figure 5 This embodiment further explains Example 1. Two symmetrically distributed limit assemblies 5 are installed on the upper side of the plug-in assembly 4, located inside the plug-in socket 304. The limit assemblies 5 include a top bead 501 that is movably embedded in the inner wall of the plug-in socket 304 and can move left and right. The top bead 501 is located inside the plug-in socket 304 and is fixedly connected to an anti-slip piece 2 502 at one end. The anti-slip piece 2 502 can prevent the top bead 501 from detaching from the plug-in socket 304.

[0037] See also Figure 5 A metal spring 503 is fixedly embedded on the side of the anti-slip sheet 502 away from the top bead 501, and the end of the metal spring 503 away from the anti-slip sheet 502 is movably abutted against the socket 304. Two symmetrically distributed limiting straight grooves 7 are provided on the outer side of the pin 311, and the top bead 501 is slidably connected to the pin 311 through the limiting straight grooves 7. When the top bead 501 is embedded in the limiting straight grooves 7, it can prevent the pin 311 from separating from the socket 304.

[0038] In this embodiment: after the user removes the pressure on the pin 311, the pin 311 will move upward inside the socket 304 due to the drive of the spring 2 405. At this time, the top ball 501 is embedded in the limiting straight groove 7 under the drive of the metal spring 503, limiting the pin 311 to prevent the pin 311 from detaching from the socket 304 during the process of the pin 311 rotating the semicircular ring 1 301 and the semicircular ring 2 302, so as to avoid the need to align the pin 311 with the socket slot on the socket 304 and insert it into the socket 304 after the pin 311 detaches from the socket 304.

[0039] Example 3

[0040] See also Figure 6 , this embodiment further explains the first embodiment, the semicircular ring 1 301 and the semicircular ring 2 302 are movably hinged through the hinge seat 303, the outer side of the end of the semicircular ring 1 301 away from the hinge seat 303 is fixedly installed with a connecting seat 1 305, and the outer side of the end of the semicircular ring 2 302 away from the hinge seat 303 is fixedly installed with a connecting seat 2 306, a U-shaped pin 307 is installed inside the connecting seat 1 305, and the U-shaped pin 307 is plugged and connected to the connecting seat 2 306 through a circular through hole. When the U-shaped pin 307 is inserted into the connecting seat 2 306, the semicircular ring 1 301 and the semicircular ring 2 302 are in a closed state.

[0041] See also Figure 7 The U-shaped pin 307 is located inside the connecting seat 305 and one end is fixedly connected to an anti-slip piece 308. The outside of the U-shaped pin 307 is located inside the connecting seat 305 and is movably sleeved with a spring 309. The two ends of the spring 309 are respectively movably abutted against the connecting seat 305 and the anti-slip piece 308. The anti-slip piece 308 can increase the contact area between the spring 309 and the U-shaped pin 307. A pull ring 310 is fixedly welded to the outside of the U-shaped pin 307. The U-shaped pin 307 consists of two straight parts and an arc part, and the length of one straight part of the U-shaped pin 307 is half of the other straight part.

[0042] In this embodiment, after the threaded joint 1 is assembled, the user pulls the U-shaped pin 307 out from the inside of the second connecting seat 306 through the pull ring 310. At this time, the semicircular collar 1 301 and the semicircular collar 2 302 can be opened, and the user can remove the rotating part 3 from the threaded joint 1, thereby facilitating the repeated use of the rotating part 3 of the threaded joint 1 and effectively saving resources.

[0043] Example 4

[0044] See also Figure 8 This embodiment further illustrates other embodiments. The protective structure 6 includes a cover plate 601 that is movably abutted against the end of the threaded joint 1. An annular airbag 602 is fixedly adhered to the side of the cover plate 601 close to the threaded joint 1, and the annular airbag 602 is located inside the threaded joint 1. The annular airbag 602 can movably abut against the inner wall of the threaded joint 1. A connecting piece 603 is fixedly adhered to the side of the annular airbag 602 away from the cover plate 601, and the annular airbag 602 is only partially adhered to the cover plate 601 and the connecting piece 603. A connecting rod 604 is fixedly embedded in the center of one side of the connecting piece 603 close to the annular airbag 602.

[0045] See also Figure 8 The connecting rod 604 passes through the cover plate 601, and the connection between the connecting rod 604 and the cover plate 601 is a plug-in connection. The end of the connecting rod 604 away from the connecting piece 603 is fixedly sleeved with a pressing piece 605. The outer side of the connecting rod 604 is located between the cover plate 601 and the pressing piece 605 and is movably sleeved with a spring three 606. The two ends of the spring three 606 are respectively movably abutted against the cover plate 601 and the pressing piece 605. The pressing piece 605 can increase the contact surface between the spring three 606 and the connecting rod 604.

[0046] In this embodiment: before the threaded joint 1 is stored or transported, the user reduces the diameter of the annular airbag 602 by pressing the pressing piece 605 in the protective structure 6, and then presses the cover plate 601 against the end of the threaded joint 1 so that the annular airbag 602 is located inside the threaded joint 1. Then the user releases the pressing piece 605. At this time, the connecting piece 603 can squeeze the annular airbag 602 under the drive of the spring three 606, so that the diameter of the annular airbag 602 becomes larger and fits tightly with the inner wall of the threaded joint 1. Since the inner wall of the threaded joint 1 is engraved with threaded grooves, the annular airbag 602 will not easily fall off the threaded joint 1, and can protect the threads of the threaded joint 1 to prevent the threads of the threaded joint 1 from being damaged or rusted, which causes difficulties in the construction of connecting steel bars. In addition, the design of the protective structure 6 can be adapted to any model of threaded joint 1, and has a wide range of uses.

[0047] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0048] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable high-strength steel bar connection joint, comprising a threaded joint (1), characterized in that: The outer side of the threaded joint (1) is fixedly mounted with a plurality of circumferentially equidistantly distributed protrusions (2); the outer side of the threaded joint (1) is sleeved with a rotating portion (3) corresponding to the outer side of the protrusions (2); the rotating portion (3) comprises a semicircular collar 1 (301) and a semicircular collar 2 (302) movably sleeved on the outer side of the threaded joint (1); a plug-in seat (304) is fixedly embedded on the outer side of the semicircular collar 1 (301); a pin (311) is inserted into the upper end of the plug-in seat (304); a plug-in assembly (4) is installed inside the plug-in seat (304) at the lower end of the pin (311); and protective structures (6) for protecting the internal threads of the threaded joint (1) are respectively embedded at both ends of the threaded joint (1); The plug-in assembly (4) includes a plug-in block (401) that is movably embedded in the inner wall of the semicircular ring (301) and can move up and down, and the plug-in block (401) can be inserted into the gap between two adjacent protrusions (2), the upper end of the plug-in block (401) is fixedly sleeved with a connecting column (402), and the upper end of the connecting column (402) is located inside the plug-in seat (304) and is fixedly connected with a gasket (403); The outer side of the gasket (403) is provided with a plurality of limiting sliders (404) distributed equidistantly around the circumference, and the limiting sliders (404) and the gasket (403) are an integrally formed structure, the limiting sliders (404) are slidably connected to the plug-in seat (304) through a reserved straight groove, the lower end of the gasket (403) is movably abutted against a second spring (405), and the end of the second spring (405) away from the gasket (403) is movably abutted against the plug-in seat (304); The upper side of the plug assembly (4) is located inside the plug seat (304), and two symmetrically distributed limiting assemblies (5) are also installed. The limiting assembly (5) includes a top bead (501) that is movably embedded in the inner wall of the plug seat (304) and can move left and right. The top bead (501) is located inside the plug seat (304), and one end is fixedly connected to a second anti-slip piece (502). A metal spring (503) is fixedly embedded on the side of the second anti-slip sheet (502) away from the top bead (501), and one end of the metal spring (503) away from the second anti-slip sheet (502) is movably abutted against the socket (304), and two symmetrically distributed limiting straight grooves (7) are provided on the outer side of the pin (311), and the top bead (501) is slidably connected to the pin (311) through the limiting straight grooves (7).

2. The adjustable high-strength steel bar connection joint according to claim 1, characterized in that: The semicircular ring 1 (301) and the semicircular ring 2 (302) are movably hinged via a hinge seat (303); a connecting seat 1 (305) is fixedly installed on the outer side of one end of the semicircular ring 1 (301) away from the hinge seat (303); a connecting seat 2 (306) is fixedly installed on the outer side of one end of the semicircular ring 2 (302) away from the hinge seat (303); a U-shaped pin (307) is installed inside the connecting seat 1 (305); and the U-shaped pin (307) is pluggably connected to the connecting seat 2 (306) through a circular through hole.

3. The adjustable high-strength steel bar connection joint according to claim 2, characterized in that: The U-shaped pin (307) is located inside the connecting seat (305) and is fixedly connected to an anti-slip piece (308) at one end. The outer side of the U-shaped pin (307) is located inside the connecting seat (305) and is movably sleeved with a spring (309). The two ends of the spring (309) are movably abutted against the connecting seat (305) and the anti-slip piece (308) respectively. A pull ring (310) is fixedly welded to the outer side of the U-shaped pin (307). The U-shaped pin (307) consists of two straight parts and one curved part, and the length of one straight part of the U-shaped pin (307) is half of the length of the other straight part.

4. The adjustable high-strength steel bar connection joint according to claim 1, characterized in that: The protective structure (6) comprises a cover plate (601) movably abutting against the end of the threaded joint (1); an annular airbag (602) is fixedly adhered to the side of the cover plate (601) close to the threaded joint (1), and the annular airbag (602) is located inside the threaded joint (1); a connecting piece (603) is fixedly adhered to the side of the annular airbag (602) away from the cover plate (601), and the annular airbag (602) is only partially adhered to the cover plate (601) and the connecting piece (603); a connecting rod (604) is fixedly embedded in the center of the side of the connecting piece (603) close to the annular airbag (602).

5. The adjustable high-strength steel bar connection joint according to claim 4, characterized in that: The connecting rod (604) passes through the cover plate (601), and the connection between the connecting rod (604) and the cover plate (601) is a plug-in connection. The end of the connecting rod (604) away from the connecting plate (603) is fixedly sleeved with a pressing plate (605). The outer side of the connecting rod (604) is located between the cover plate (601) and the pressing plate (605) and is movably sleeved with a spring three (606), and the two ends of the spring three (606) are movably abutted against the cover plate (601) and the pressing plate (605) respectively.

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