CN202117233U - Adjustable rebar thread connection device - Google Patents
Adjustable rebar thread connection device Download PDFInfo
- Publication number
- CN202117233U CN202117233U CN2011201406461U CN201120140646U CN202117233U CN 202117233 U CN202117233 U CN 202117233U CN 2011201406461 U CN2011201406461 U CN 2011201406461U CN 201120140646 U CN201120140646 U CN 201120140646U CN 202117233 U CN202117233 U CN 202117233U
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- screw shell
- reinforcing bar
- thread
- cavity
- joint
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- 230000003014 reinforcing effect Effects 0.000 claims description 95
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 238000010276 construction Methods 0.000 abstract description 8
- 210000001503 joint Anatomy 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses an adjustable rebar thread connection device, which comprises a first thread sleeve, a second thread sleeve and a connector. The inner wall of the first thread sleeve is provided with inner threads for being connected with an end socket of a first rebar in threaded mode, the inner wall of the second thread sleeve is provided with inner threads for being connected with an end socket of a second rebar in threaded mode, and the outer wall of the second thread sleeve is provided with outer threads. The connector is a cavity body, one end of the connector is provided with a cylindrical cavity, the bottom of the cavity is provided with a hole, and the diameter of the hole is slightly larger than the outer diameter of the first rebar. The inner diameter of the cavity is larger than or equal to the outer diameter of the first thread sleeve, inner threads for being connected with threads on the outer wall of the second thread sleeve in threaded mode are arranged on the inner wall of the cavity close to an outlet. By means of the nesting connection of the first thread sleeve, the second thread sleeve and the connector, the adjustable rebar thread connection device achieves mechanical connection between two rebars. The adjustable rebar thread connection device is few in needed parts, simple to operate and strong in permutability and greatly reduces construction difficulty.
Description
Technical field
The utility model relates to construction engineering technical field, is specifically related to a kind of adjustable type screw thread steel linkage.
Background technology
At building engineering field, often need connect reinforcing bar, to form certain structure.In the site operation, can run into two situation that reinforcing bar all can not rotate to be connected, and because steel bar blanking and construction error, connected two end reinforced formation gaps can not be drawn in together.In addition; The axis of two reinforcing bars to be connected is not usually on same straight line; The straight screw sleeve that use standard type, positive transoid in this case, adds long filament head dummy etc. all can't be realized effective connection; Promptly can't guarantee the effective thread length when sleeve connects, the end face of two reinforcing bars after maybe can't realizing connecting can be effectively to the top tensioning, thereby influences the bonding strength of joint.Under " ater-casting " operating mode in reinforcing cage, the whole butt joint of reinforced mesh or structure construction, the situation that reinforcing bar can not effectively connect is comparatively general.
Available technology adopting taper thread double layer sleeve barrel connects.As shown in Figure 1 in this connected mode, earlier the end of two the 3rd reinforcing bars 17 to be connected and the 4th reinforcing bar 18 is passed through mechanical jumping-up (can adopt cold-heading or heat to upset) respectively; The interior swivel nut 11 that will preset outer cone thread then is enclosed within on the 3rd reinforcing bar 17 and is enclosed within on the 4th reinforcing bar 18 with the external thread sleeve 12 that presets inside tapered thread; Be connected interior swivel nut 11 with external thread sleeve 12 through taper thread more at last, thereby link together the 3rd reinforcing bar 17 and the 4th reinforcing bar 18.The shortcoming of this connected mode is:
1, need carry out the on-the-spot mechanical jumping-up processing of reinforcing bar, operation is complicated;
Leave the gap between the end of two reinforcing bars after 2, connection is accomplished, can not effectively hold out against, influence quality of connection;
When 3, the distance between the axis of two reinforcing bars to be connected is big, can't guarantee bonding strength.
The utility model content
To the above-mentioned defective that prior art exists, the problem that the utility model will solve is all can not rotate can not draw in together the time when two reinforcing bars to be connected, realizes the equal strength connection of two reinforcing bars.
For addressing the above problem, the utility model provides a kind of adjustable type screw thread steel linkage, it is characterized in that, comprises first screw shell, second screw shell and joint; The inwall of said first screw shell is provided with and is used for the internal thread that is threaded with the termination of first reinforcing bar; The inwall of said second screw shell is provided with and is used for the internal thread that is threaded with the termination of second reinforcing bar, and outer wall is provided with external screw thread; Said joint is the cavity that an end has cylindrical cavity; The bottom of said cavity is provided with the hole of somewhat larger in diameter in the external diameter of said first reinforcing bar; The internal diameter of said cavity is more than or equal to the external diameter of said first screw shell, and said cavity is provided with near the inwall of outlet and is used for the internal thread that is connected with the outer wall thread of said second screw shell.
As preferably; Gap sum between the end face of the length of the length of said first screw shell, second screw shell and said first reinforcing bar and second reinforcing bar makes an end of said second screw shell after assembling, expose the cavity of said joint greater than the degree of depth of the cylindrical cavity of said joint.
As preferably, the internal thread of the internal thread of said first screw shell, said second screw shell and the internal thread of external screw thread and said cavity are straight thread.
As preferably, be provided with the pad in gap of the termination of the termination that is used to fill said first reinforcing bar and second reinforcing bar between said second screw shell and said first screw shell.
As preferably, the end that said second screw shell exposes the cavity of said joint is provided with and is used for the holding section that spanner holds.
As preferably, the outer wall of said joint is provided with and is used for the holding section that spanner holds.
The adjustable type screw thread steel linkage of the utility model has been realized the mechanical connection of two reinforcing bars through nested connection the between first screw shell, second screw shell and the joint.Connecting the equal strength that has guaranteed reinforcing bar through straight thread connects; Through reaching the cavity of joint and the radial clearance between first screw shell between hole on the joint and the reinforcing bar; Guarantee axis not two reinforcing bars on same straight line achieve a butt joint, and can adapt to the connection between two reinforcing bars of different radial distances.The required parts of the utility model are less, simple to operate, and displacement property is strong, greatly reduces difficulty of construction.
Description of drawings
Fig. 1 is used for the structural representation of the taper thread double layer sleeve barrel of reinforcing bar connection for prior art;
Fig. 2 is the fitting sleeve of adjustable type screw thread steel linkage of embodiment of the utility model structural representation therein on reinforcing bar the time;
Structural representation when Fig. 3 is connected with first screw shell for the reinforcing bar that is with joint among Fig. 2;
Fig. 4 is first screw shell, the structural representation when second screw shell is connected with reinforcing bar respectively of adjustable type screw thread steel linkage of the embodiment of the utility model;
Fig. 5 is the structural representation of the adjustable type screw thread steel linkage of the embodiment of the utility model when accomplishing equal strength between two reinforcing bars and connecting.
The specific embodiment
The structure of adjustable type screw thread steel linkage that specifies the embodiment of the utility model below in conjunction with accompanying drawing is formed and the embodiment when being used for two reinforcing bars and connecting.
Like Fig. 2-shown in Figure 5, the adjustable type screw thread steel linkage of the embodiment of the utility model comprises that joint 22, second screw shell 21 and external diameter are first screw shell 23 of D0.The outer wall of second screw shell 21 is provided with straight thread 211, and inwall is provided with straight thread 212.Joint 22 is for having the cavity of columniform cavity 225, and an end of joint 22 is provided with and is used to be enclosed within the hole 25 on first reinforcing bar 8, and the diameter in hole 25 is D1; First screw shell 23 is positioned at the cavity 225 of joint 22; The inwall of first screw shell 23 is provided with straight thread, is connected through straight thread with the termination of first reinforcing bar 8, and the diameter of first reinforcing bar 8 is D2; And must satisfy D0＞D1＞D2; Wherein, D0＞D1 can make first screw shell 23 be stuck in the joint 22, can from hole 25, not skid off cavity 225; D1＞D2 can guarantee in first reinforcing bar, the 8 ability patchholes 25, and first reinforcing bar 8 can be radially movable along it in hole 25, be convenient to connect two reinforcing bars of axis misalignment.The other end of joint 22 is the openend of cavity 225; Its inwall is provided with straight thread 229; Second screw shell 21 is connected the openend of the cavity 225 of joint 22 through the straight thread on its outer wall 211; Straight thread 211 on the straight thread 229 on the cavity 225 and second screw shell 21 matches, and the straight thread 212 on second screw shell, 21 inwalls and the termination of second reinforcing bar 7 are through being threaded.Like this; Second screw shell 21 is connected with second reinforcing bar 7 through straight thread; First screw shell 23 is connected with first reinforcing bar 8 through straight thread; Second screw shell 21 is stuck in first screw shell 23 in the cavity 225 of joint 22 again, and second screw shell 21 is sealed in the openend of cavity 225 again through straight thread, thereby has realized that second reinforcing bar 7 is connected with the straight thread of first reinforcing bar 8.Owing to all adopt straight thread to connect in the present embodiment, can accomplish that equal strength connects.
Work progress when the adjustable type screw thread steel linkage that specifies present embodiment below in conjunction with Fig. 1-Fig. 5 is used to connect second reinforcing bar 7 and first reinforcing bar 8.As shown in Figure 2, at first the end of second reinforcing bar 7 and first reinforcing bar 8 is processed into straight thread or behind jumping-up, is lathed straight thread through rolling; The joint 22 of straight thread 229 is enclosed within on first reinforcing bar 8 to be connected in will presetting then, and an end that has straight thread of first reinforcing bar 8 is from an end patchhole 25 of joint 22, and lets the straight thread of first reinforcing bar, 8 terminations expose the openend of joint 22.
As shown in Figure 3, first screw shell 23 of straight thread in presetting is screwed on the straight thread on the termination of first reinforcing bar 8 that is with joint 22, and tightens first screw shell 23, make the end face of first screw shell 23 and first reinforcing bar 8.
As shown in Figure 4, second screw shell 21 that presets inside and outside straight thread is connected on the termination of other one second reinforcing bar 7 to be connected through straight thread, and tightens, the end face of second screw shell 21 and second reinforcing bar 7.Push away the direction of joint 22 towards second reinforcing bar 7, first screw shell 23 gets in the cavitys 225, and swivel 22 makes joint 22 and second screw shell 21 through being threaded.In the present embodiment, the inside diameter D 3 of the cavity 225 of joint 22 equals the D outer diameter 0 of first screw shell 23, just says that also first screw shell 23 can just get in the cavity 225 of joint 22, but can not be radially movable at it.
For the adjustable type screw thread steel linkage that makes present embodiment is used to connect not two reinforcing bars on same straight line of axis, can also make D3 greater than D0, that is to say that first screw shell 23 can also be radially movable along it in cavity 225.In this case; Owing to have radial clearance between first screw shell 23 and the cavity 225; Also there is radial clearance between the hole 25 and first reinforcing bar 8; Thereby just can keep certain radial distance between the axis of first reinforcing bar 8 and second reinforcing bar 7, through changing the size of the radial clearance between first reinforcing bar 8 and hole 25, the first screw shells 23 and the joint 22; Just can make certain distance that staggers between the axis of axis and second reinforcing bar 7 of first reinforcing bar 8, thus can make axis not two reinforcing bars on same straight line connect smoothly.Be L in its ultimate range that radially can stagger between the axis of the axis of first reinforcing bar 8 and second reinforcing bar 7, wherein,
L＝min{(D1-D2)/2，(D3-D0)/2}。
As shown in Figure 5; If it is axially also gapped between the end face of second reinforcing bar 7 and first reinforcing bar 8 at it; Can be between first screw shell 2 and second screw shell 21 according to actual conditions; Promptly add pad 24 between the end face of two reinforcing bars, the thickness of pad 24 should be a bit larger tham the gap between the end face of these two reinforcing bars.Through pad 24 is set the end face of second reinforcing bar 7 and first reinforcing bar 8 is held out against, thereby improve the bonding strength of reinforcing bar.Swivel 22 is connected the straight thread 211 that on the straight thread 229 that is provided with on cavity 225 inwalls of joint 22 and second screw shell, 21 outer walls, is provided with; Second screw shell 21 links together through the straight thread ways of connecting with joint 22, so two reinforcing bar equal strength link together.
As shown in Figure 5, as preferably, in the present embodiment, the length of the straight thread 229 on the inwall of the cavity 225 of joint 22 is more than or equal to the length of the straight thread 211 on second screw shell, 21 outer walls.The length of straight thread 229 can make the end of straight thread 229 leave surplus greater than the length of straight thread 211, and the straight thread 211 on second screw shell 21 all effectively is connected with joint 22, increases bonding strength.
As shown in Figure 5, as preferably, in the present embodiment, the straight thread 211 that second screw shell 21 is outer and the length of first screw shell 23 add second reinforcing bar 7 and first reinforcing bar, 8 end clearances and greater than the degree of depth of the cavity 225 of joint 22.Like this, after joint 22 was screwed on second screw shell 21, second screw shell 21 can also stretch out joint 22, is convenient to be provided with the holding section.
As preferably; In the present embodiment; The length sum of first screw shell 23 and second screw shell 21 is added the degree of depth of the summation in the gap between the end face of second reinforcing bar 7 and first reinforcing bar 8 greater than the cylindrical cavity 225 in the joint 22; Make the adjustable type screw thread steel linkage of present embodiment after assembling connects; It is a bit of that second screw shell 21 can expose the cavity 225 of joint 22, so that at the other end of second screw shell 21 holding section is set, joint 22 can be tightened on second screw shell 21.
As shown in Figure 4, as preferably, second screw shell 21 away from second reinforcing bar 7 an end, promptly expose cavity 225 an end be provided with holding section 215, holding section 215 can be set to be convenient to the prism shape that spanner holds, like hexagonal prism shape etc.Equally, the outer wall of joint 22 also is provided with and is used for the holding section (not shown) that spanner holds, and the holding section on the joint 22 can be located at any position of joint 22 outer walls.
The equal strength connection that the adjustable type screw thread steel linkage of present embodiment guarantees reinforcing bar through using straight thread to connect; Through the radial clearance that reaches between joint and the reinforcing bar between the joint and first screw shell is set; Make the two not realization of the reinforcing bar on same straight line butt joints easily; And above-mentioned gap can be adjusted according to actual needs, can make two bigger reinforcing bars of axial spacing also can realize effective connection.If have the gap between the end of two reinforcing bars, can make through the pad that adds suitable thickness between the termination of two reinforcing bars after the connection to keep certain pretightning force, guarantee quality of connection.
The adjustable type screw thread steel linkage of present embodiment only needs several screw-rolling machines in when construction, saves space, the energy and manpower and materials, is convenient to the site tissue construction.The adjustable type screw thread steel linkage of the utility model has adopted first screw shell, second screw shell structure mutually nested with joint, has realized the connection of two reinforcing bars, and is simple to operate, and displacement property is strong, greatly reduces difficulty of construction.
Certainly; The above is the preferred implementation of the utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also are regarded as the protection domain of the utility model.
Claims (6)
1. an adjustable type screw thread steel linkage is characterized in that, comprises first screw shell, second screw shell and joint;
The inwall of said first screw shell is provided with and is used for the internal thread that is threaded with the termination of first reinforcing bar;
The inwall of said second screw shell is provided with and is used for the internal thread that is threaded with the termination of second reinforcing bar, and outer wall is provided with external screw thread;
Said joint is the cavity that an end has cylindrical cavity; The bottom of said cavity is provided with the hole of somewhat larger in diameter in the external diameter of said first reinforcing bar; The internal diameter of said cavity is more than or equal to the external diameter of said first screw shell, and said cavity is provided with near the inwall of outlet and is used for the internal thread that is connected with the outer wall thread of said second screw shell.
2. adjustable type screw thread steel linkage according to claim 1; It is characterized in that; Gap sum between the end face of the length of the length of said first screw shell, second screw shell and said first reinforcing bar and second reinforcing bar makes an end of said second screw shell after assembling, expose the cavity of said joint greater than the degree of depth of the cylindrical cavity of said joint.
3. adjustable type screw thread steel linkage according to claim 1 is characterized in that, the internal thread of the internal thread of said first screw shell, said second screw shell and the internal thread of external screw thread and said cavity are straight thread.
4. adjustable type screw thread steel linkage according to claim 2 is characterized in that, is provided with the pad in the gap between the end face that is used to fill said first reinforcing bar and second reinforcing bar between the end face of said first screw shell and said second screw shell.
5. adjustable type screw thread steel linkage according to claim 2 is characterized in that, the end that said second screw shell exposes the cavity of said joint is provided with and is used for the holding section that spanner holds.
6. adjustable type screw thread steel linkage according to claim 1 and 2 is characterized in that, the outer wall of said joint is provided with and is used for the holding section that spanner holds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201406461U CN202117233U (en) | 2011-05-05 | 2011-05-05 | Adjustable rebar thread connection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201406461U CN202117233U (en) | 2011-05-05 | 2011-05-05 | Adjustable rebar thread connection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202117233U true CN202117233U (en) | 2012-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201406461U Expired - Fee Related CN202117233U (en) | 2011-05-05 | 2011-05-05 | Adjustable rebar thread connection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN202117233U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261167A (en) * | 2011-05-05 | 2011-11-30 | 建研科技股份有限公司 | Adjustable type reinforcing bar threaded connection device |
| CN103790286A (en) * | 2012-10-30 | 2014-05-14 | 林恕如 | Connector |
| CN104264787A (en) * | 2014-09-12 | 2015-01-07 | 中国中建设计集团有限公司 | Prefabricated concrete member, assembled concrete member and fabricating method through straight thread and nut locking anchor grouting sleeve connection |
| CN106592872A (en) * | 2016-11-24 | 2017-04-26 | 浙江大学建筑设计研究院有限公司 | Steel bar mechanical connecting structure and installation method |
| CN106795717A (en) * | 2014-05-21 | 2017-05-31 | 金龙根 | It is equipped to the splice to closing piece and the precast reinforced net using the splice connects joint method |
| WO2017185193A1 (en) * | 2016-04-26 | 2017-11-02 | 苏犁 | Double-eccentric-block connecting joint for connecting steel bars of precast members |
| CN111287386A (en) * | 2016-12-23 | 2020-06-16 | 北京五隆兴科技发展有限公司 | Mechanical connection device and steel bar connection method for steel bar part commercialized construction |
| CN114658169A (en) * | 2022-03-16 | 2022-06-24 | 湖北工程学院 | Steel bar connecting structure |
-
2011
- 2011-05-05 CN CN2011201406461U patent/CN202117233U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261167A (en) * | 2011-05-05 | 2011-11-30 | 建研科技股份有限公司 | Adjustable type reinforcing bar threaded connection device |
| CN103790286A (en) * | 2012-10-30 | 2014-05-14 | 林恕如 | Connector |
| CN106795717A (en) * | 2014-05-21 | 2017-05-31 | 金龙根 | It is equipped to the splice to closing piece and the precast reinforced net using the splice connects joint method |
| CN104264787A (en) * | 2014-09-12 | 2015-01-07 | 中国中建设计集团有限公司 | Prefabricated concrete member, assembled concrete member and fabricating method through straight thread and nut locking anchor grouting sleeve connection |
| WO2017185193A1 (en) * | 2016-04-26 | 2017-11-02 | 苏犁 | Double-eccentric-block connecting joint for connecting steel bars of precast members |
| CN109790716A (en) * | 2016-04-26 | 2019-05-21 | 苏犁 | Double eccentric block jointings of prefabricated components connection reinforcing bar |
| CN106592872A (en) * | 2016-11-24 | 2017-04-26 | 浙江大学建筑设计研究院有限公司 | Steel bar mechanical connecting structure and installation method |
| CN106592872B (en) * | 2016-11-24 | 2019-04-23 | 浙江大学建筑设计研究院有限公司 | Steel concrete supporting structure and installation method |
| CN111287386A (en) * | 2016-12-23 | 2020-06-16 | 北京五隆兴科技发展有限公司 | Mechanical connection device and steel bar connection method for steel bar part commercialized construction |
| CN111287386B (en) * | 2016-12-23 | 2020-12-08 | 北京五隆兴科技发展有限公司 | Mechanical connection device and steel bar connection method for steel bar part commercialized construction |
| CN114658169A (en) * | 2022-03-16 | 2022-06-24 | 湖北工程学院 | Steel bar connecting structure |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120118 Termination date: 20180505 |