CN220504324U - Screw thread steel bar connecting piece - Google Patents
Screw thread steel bar connecting piece Download PDFInfo
- Publication number
- CN220504324U CN220504324U CN202321993399.9U CN202321993399U CN220504324U CN 220504324 U CN220504324 U CN 220504324U CN 202321993399 U CN202321993399 U CN 202321993399U CN 220504324 U CN220504324 U CN 220504324U
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- CN
- China
- Prior art keywords
- connecting piece
- thread
- hole
- rebar
- sleeve
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- 229910000831 Steel Inorganic materials 0.000 title abstract description 43
- 239000010959 steel Substances 0.000 title abstract description 43
- 230000003014 reinforcing effect Effects 0.000 claims description 16
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 13
- 210000002445 nipple Anatomy 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 4
- 239000000725 suspension Substances 0.000 abstract description 3
- 239000004568 cement Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 5
- 210000001503 joint Anatomy 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 238000009435 building construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Landscapes
- Reinforcement Elements For Buildings (AREA)
Abstract
The utility model discloses a threaded steel bar connecting piece which comprises a first connecting piece, a second connecting piece and a connecting sleeve, wherein the first connecting piece is provided with a first through hole, a through first internal thread is arranged in the first through hole, the second connecting piece is provided with a second through hole, a through second internal thread is arranged in the second through hole, a first external thread is arranged on the outer wall of the first connecting piece, a second external thread is arranged on the outer wall of the second connecting piece, the connecting sleeve is provided with a third through hole, a through third internal thread is arranged in the third through hole, and the third internal thread can be respectively matched and connected with the first external thread and the second external thread. The threaded steel bar connecting piece can effectively ensure that two connecting pieces and two steel bars are propped against each other, suspension is avoided, the two connecting pieces are connected with the connecting sleeve through mutual engagement of threads, sliding gaps do not exist, the connecting strength is high, the safety coefficient is high, the connecting sleeve can be prevented from unscrewing, and meanwhile, the installation is convenient.
Description
Technical Field
The utility model relates to the technical field of steel bar connectors, in particular to a threaded steel bar connector.
Background
With the rapid development of national building foundations, cement prefabricated members are used in large quantities during the building construction process. With the increasing height of the prefabricated cement members, the length of the reinforcing bars used is relatively long, and since the reinforcing bars are manufactured in a standard length in most cases, it is necessary to connect a plurality of reinforcing bars to each other when constructing a high-rise building. The existing method for connecting the reinforcing steel bars comprises the following steps: binding lap joint, welding connection, mechanical connection and the like. The binding lap joint is not suitable for being used in high-rise buildings due to poor durability; the welding quality of the welding connection cannot be ensured, unqualified products are easy to produce, and hidden danger is brought to the safety of the building; mechanical joints have been used in many cases in recent years for reinforcement joints because of their durability and ease of construction.
The typical mechanical connection method is to use a steel bar connecting sleeve to connect, insert the end parts of two steel bars into the steel bar connecting sleeve in opposite directions, make the end parts of the two steel bars abut against each other, and respectively screw the steel bar connecting sleeve and the two steel bars in a threaded connection mode to realize the connection of the two steel bars. The connecting mode is simple, but is only suitable for the situation that one end of the cement prefabricated part is provided with the movable reinforcing steel bar, and the other end of the cement prefabricated part is provided with the movable reinforcing steel bar, or both ends of the cement prefabricated part are provided with the movable reinforcing steel bar; the mechanical connection method of the small part adopts a clamping mode, for example, the patent with the application number of 202320054206.7 is adopted, steel bars are respectively preset in the connecting pieces, the first connecting pieces are clamped with the connecting sleeves, the second connecting pieces are connected with the connecting sleeves in a threaded mode, the first connecting pieces are abutted to the connecting sleeves, the connection of the two steel bars is realized through screwing threads, the two steel bars can be flexibly connected together by the connecting mode, but in order to enable the first connecting pieces to be clamped with the connecting sleeves and slide in the connecting sleeves, gaps exist between the connecting sleeves and the first connecting pieces, the strength is reduced, and potential safety hazards are increased. Meanwhile, the second connecting piece needs to be abutted against the first connecting piece through threaded rotation, whether the second connecting piece is completely clamped in the connecting sleeve or not can not be visually seen in the process of rotating the second connecting piece, the second connecting piece is in threaded connection, threads can possibly be unscrewed after a long time, and potential safety hazards are further increased.
Disclosure of Invention
The utility model aims to provide a threaded steel bar connecting piece, which can effectively ensure that two connecting pieces are propped against two steel bars, so that suspension is avoided, the two connecting pieces are connected with a connecting sleeve through mutual engagement of threads, a sliding gap does not exist, the connecting strength is high, the safety coefficient is high, the connecting sleeve can be prevented from unscrewing, and meanwhile, the installation is convenient.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a screw thread reinforcing bar connecting piece, includes first connecting piece, second connecting piece and adapter sleeve, first connecting piece has first through-hole, is equipped with the first internal thread that link up in first through-hole, and the second connecting piece has the second through-hole, is equipped with the second internal thread that link up in the second through-hole first connecting piece outer wall is equipped with first external screw thread, and second connecting piece outer wall is equipped with the second external screw thread, and the adapter sleeve has the third through-hole, is equipped with the third internal screw thread that link up in the third through-hole, and the third internal screw thread can be simultaneously with first external screw thread, second external screw thread cooperation connection respectively to make first connecting piece, second connecting piece link to each other and first connecting piece tip can offset with the second connecting piece tip.
Preferably, the stop position of the second external thread is provided with a limit boss, when the second external thread is completely screwed into the connecting sleeve, the limit boss is clamped at the edge of one side of the connecting sleeve, and the diameters of the first external thread and the second external thread are equal.
Preferably, the outer diameter of the limiting boss is smaller than the outer diameter of the connecting sleeve and larger than the inner diameter of the connecting sleeve.
Preferably, the novel connecting sleeve further comprises a limiting sleeve, wherein a fourth through hole is formed in the limiting sleeve, a through fourth internal thread is arranged in the fourth through hole, the third internal thread is respectively connected with the first external thread and the second external thread in a matched mode, and the fourth internal thread is connected with the first external thread in a threaded mode and is abutted to the connecting sleeve.
Preferably, the first connecting piece is in threaded connection with the first reinforcing steel bar; the second connecting piece is in threaded connection with a second reinforcing steel bar.
Preferably, when the fourth internal thread is in threaded connection with the first external thread and abuts against the connecting sleeve, the first connecting piece abuts against the second connecting piece, meanwhile, the first steel bar abuts against the second steel bar, and the inner ends of the first connecting piece, the second connecting piece, the first steel bar and the second steel bar are all located at the center surface of the connecting sleeve.
Preferably, the first internal thread and the second internal thread are in the same direction, and the first external thread and the second external thread are in the same direction.
Preferably, the outer walls of the connecting sleeve and the limiting boss are smooth.
Among the above-mentioned technical scheme, with first reinforcing bar connected to first connecting piece, the second reinforcing bar is connected to in the second connecting piece to first connecting piece and second connecting piece all pass through screw thread interlock each other and are connected, do not have the slip clearance, and joint strength is high, has replaced traditional manual welding simultaneously, reduces staff's working strength, and simple structure can ensure that butt joint reinforcing bar axial lead keeps unanimous. In addition, through setting up spacing boss in second external screw thread termination department, when the adapter sleeve screw in second connecting piece and in spacing boss department chucking, the inner of second connecting piece is in the centre level position of adapter sleeve, first connecting piece and second connecting piece butt this moment, first reinforcing bar and second reinforcing bar butt simultaneously, further strengthen the fastness of device. Further be equipped with the stop collar in first connecting piece one end, when the adapter sleeve card was in spacing boss department, the stop collar was at first external screw thread edge through fourth internal screw thread threaded connection to the butt is on the adapter sleeve, and the removal of restriction adapter sleeve prevents that the adapter sleeve from moving to first connecting piece one end, reinforcing device's stability. Furthermore, the connecting piece can be preset in advance without occupying the construction period, meanwhile, the influence of weather is avoided, and the construction of workers is facilitated.
Drawings
Fig. 1 is a schematic view of the overall structure of the present screw-type reinforcing bar coupler;
fig. 2 is a schematic view of a first connector structure of the present screw-type reinforcing bar connector;
fig. 3 is a schematic view of a second connector structure of the present rebar connector;
fig. 4 is a schematic view of a connecting sleeve structure of the twisted steel connecting piece;
fig. 5 is a schematic diagram of the stop collar structure of the screw-thread steel bar connecting piece;
fig. 6 is an overall sectional view of the present screw-type reinforcing bar coupler.
In the figure, 1 a first connector; 11 first external threads; 12 first internal threads; 2 a second connector; 21 limit bosses; 22 second external threads; 23 second internal threads; 3, connecting the sleeve; 31 a third internal thread; 4, a first reinforcing steel bar; 5, second reinforcing steel bars; 6, a limit sleeve; 61 fourth internal thread.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
as shown in fig. 1 to 6, the screw-thread reinforcing bar connecting piece comprises a first connecting piece 1, a second connecting piece 2 and a connecting sleeve 3, wherein the first connecting piece 1 is provided with a first through hole, a first through internal thread 12 is arranged in the first through hole, the second connecting piece 2 is provided with a second through hole, a second through internal thread 23 is arranged in the second through hole, the first internal thread 12 and the second internal thread 23 are in the same direction, a first external thread 11 is arranged on the outer wall of the first connecting piece 1, a second external thread 22 is arranged on the outer wall of the second connecting piece 2, and the first external thread 11 and the second external thread 22 are in the same direction; the connecting sleeve 3 is provided with a third through hole, a through third internal thread 31 is arranged in the third through hole, the third internal thread 31 can be matched and connected with the first external thread 11 and the second external thread 22 at the same time, the first connecting piece 1, the second connecting piece 2 and the connecting sleeve 3 are mutually engaged and connected through threads, a sliding gap does not exist, the connecting strength is high, and the safety coefficient is high. And through the connection of first connecting piece 1 and second connecting piece 2 and adapter sleeve 3, replaced traditional manual welding, reduced staff's working strength, and joint strength is high, simple structure ensures that butt joint reinforcing bar axial lead keeps unanimous.
The first connecting piece 1 is connected to the first steel bar 4 in a threaded manner, and the second connecting piece 2 is connected to the second steel bar 5 in a threaded manner; a limiting boss 21 is arranged at the termination of the second external thread 22, and the outer diameter of the limiting boss 21 is smaller than the outer diameter of the connecting sleeve 3 and larger than the inner diameter of the connecting sleeve 3; when the connecting sleeve 3 is connected to the second connecting piece 2, and one end of the connecting sleeve 3 is clamped at the limiting boss 21, the inner end of the second connecting piece 2 is positioned at the center surface of the connecting sleeve 3, the inner end of the first connecting piece 1 is abutted with the inner end of the second connecting piece 2, suspension is avoided, the connecting strength is enhanced, the safety of the device is further improved, meanwhile, the first reinforcing steel bars 4 are abutted with the second reinforcing steel bars 5, the first connecting piece 1, the second connecting piece 2, the inner ends of the first reinforcing steel bars 4 and the second reinforcing steel bars 5 are positioned at the middle position of the connecting sleeve 3, and the firmness of the device is further enhanced.
When the connecting sleeve 3 is used, firstly, the connecting sleeve 3 is inserted into the first steel bar 4, then the first connecting piece 1 is screwed onto the first steel bar 4, the second connecting piece 2 is screwed onto the second steel bar 5, the first steel bar 4 is flush with the inner end surface of the first connecting piece 1, the second steel bar 5 is flush with the inner end surface of the second connecting piece 2, the first steel bar is abutted with the end part of the second steel bar, the first connecting piece is abutted with the end part of the second connecting piece, secondly, the connecting sleeve 3 is rotated, after passing through the first connecting piece 1, the connecting sleeve is screwed onto the second connecting piece 2, and when the connecting sleeve is clamped through the limiting boss 21, the installation is completed.
In the embodiment, the outer wall of the connecting sleeve 3 and the outer wall of the limiting boss 21 are smooth, the first connecting piece 1 and the second connecting piece 2 can be preset on the steel bars in advance, the construction period is not occupied, meanwhile, the influence of weather is avoided, and the construction of workers is facilitated.
In a preferred embodiment, the novel connecting sleeve further comprises a limiting sleeve 6, a fourth through hole is formed in the limiting sleeve 6, a through fourth internal thread 61 is arranged in the fourth through hole, the third internal thread 31 is respectively connected with the first external thread 11 and the second external thread 22 in a matching mode, and the fourth internal thread 61 is connected with the first external thread 11 in a threaded mode and is abutted to the connecting sleeve 3. When the connecting sleeve 3 is screwed to the limiting boss 21 to be clamped, the limiting sleeve 6 is screwed with the first external thread 11 and is clamped at the other end of the connecting sleeve 3, the connecting sleeve 3 is fixed, the connecting sleeve 3 is prevented from shifting to one side of the first connecting piece 1, and the safety performance of the device is enhanced.
When the novel connecting sleeve is used, the limiting sleeve 6 is required to be inserted into the first steel bar 4, the connecting sleeve 3 is further inserted into the first steel bar 4, the first connecting piece 1 is connected to the first steel bar 4 in a screwed mode, the second connecting piece 2 is connected to the second steel bar 5 in a screwed mode, the first steel bar 4 is flush with the inner end face of the first connecting piece 1, the second steel bar 5 is flush with the inner end face of the second connecting piece 2, meanwhile, the first steel bar 4 and the second steel bar 5 are in butt joint, the connecting sleeve 3 is rotated, the connecting sleeve is connected to the second connecting piece 2 in a screwed mode after passing through the first connecting piece 1, one end of the connecting sleeve 3 is clamped through the limiting boss 21, the limiting sleeve 6 is connected to the first connecting piece 1 in a screwed mode, the other end of the connecting sleeve 3 is clamped, and installation is completed at the moment.
The present embodiments are merely illustrative of the present utility model and are not intended to be limiting, and the technical solutions that are not substantially transformed under the present utility model are still within the scope of protection.
Claims (8)
1. The utility model provides a screw thread reinforcing bar connecting piece, includes first connecting piece, second connecting piece and adapter sleeve, first connecting piece has first through-hole, is equipped with the first internal thread that link up in first through-hole, and the second connecting piece has the second through-hole, is equipped with the second internal thread that link up in the second through-hole, its characterized in that first connecting piece outer wall is equipped with first external screw thread, and second connecting piece outer wall is equipped with the second external screw thread, and the adapter sleeve has the third through-hole, is equipped with the third internal thread that link up in the third through-hole, and the third internal screw thread can be simultaneously with first external screw thread, second external screw thread cooperation connection respectively to make first connecting piece, second connecting piece link to each other and first connecting piece tip can offset with the second connecting piece tip.
2. The rebar connector of claim 1, wherein the second external thread terminates in a stop tab that snaps onto an edge of one side of the adapter sleeve when the second external thread is fully threaded into the adapter sleeve, the first external thread being of equal diameter as the second external thread.
3. The rebar junction according to claim 2, wherein the limit boss outer diameter is smaller than the adapter sleeve outer diameter and larger than the adapter sleeve inner diameter.
4. A rebar junction according to claim 2 or 3, further comprising a stop collar, wherein the stop collar is provided with a fourth through hole, a fourth through hole is internally provided with a fourth through thread, the third through thread is simultaneously connected with the first external thread and the second external thread in a matching manner, and the fourth through thread is connected with the first external thread in a threaded manner and abuts against the connecting sleeve.
5. The rebar junction according to claim 4, wherein the first junction is threadably connected to the first rebar; the second connecting piece is in threaded connection with a second reinforcing steel bar.
6. The rebar junction according to claim 5, wherein when the fourth internal thread is threaded with the first external thread and abuts the junction sleeve, the first junction and the second junction abut, the first rebar and the second rebar abut, and the first junction, the second junction, the first rebar, and the second rebar are each positioned at a center of the junction sleeve.
7. The rebar junction of claim 6 wherein the first internal thread is oriented in a direction coincident with the second internal thread and the first external thread is oriented in a direction coincident with the second external thread.
8. The rebar junction according to claim 1, wherein the nipple and the limit boss are smooth on the outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321993399.9U CN220504324U (en) | 2023-07-27 | 2023-07-27 | Screw thread steel bar connecting piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321993399.9U CN220504324U (en) | 2023-07-27 | 2023-07-27 | Screw thread steel bar connecting piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220504324U true CN220504324U (en) | 2024-02-20 |
Family
ID=89872241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321993399.9U Active CN220504324U (en) | 2023-07-27 | 2023-07-27 | Screw thread steel bar connecting piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220504324U (en) |
-
2023
- 2023-07-27 CN CN202321993399.9U patent/CN220504324U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |