CN217054040U - Middle section steel bar connecting device for fixing two ends - Google Patents
Middle section steel bar connecting device for fixing two ends Download PDFInfo
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- CN217054040U CN217054040U CN202120834331.0U CN202120834331U CN217054040U CN 217054040 U CN217054040 U CN 217054040U CN 202120834331 U CN202120834331 U CN 202120834331U CN 217054040 U CN217054040 U CN 217054040U
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Abstract
The utility model relates to a civil engineering technical field especially relates to a interlude steel bar connection device for both ends are fixed. A interlude connecting device for both ends are fixed includes: an A end assembly, a B end assembly and a screw rod; the A-side subassembly includes: the A end sleeve is fastened on the bolt; the B-side subassembly includes: the B end sleeve is fastened on the bolt; threads are machined at two ends of the screw rod and respectively form a thread end A and a thread end B; the A thread end of the screw is connected with the A end sleeve through an A end fastening bolt, and the B thread end of the screw is connected with the B end sleeve through a B end fastening bolt; the inside of A end sleeve and B end sleeve all processes the screw thread and with the screw thread phase-match of screw rod. The utility model is suitable for a different diameters the reinforcing bar, the different steel bar connection of arranging the form improve the connection quality and the efficiency of construction of the fixed interlude reinforcing bar in both ends, and then by a wide margin reduction personnel's consumption, reduce the construction degree of difficulty.
Description
Technical Field
The utility model relates to a civil engineering technical field especially relates to a interlude steel bar connection device for both ends are fixed.
Background
In the field of civil engineering construction, particularly industrial concrete structures, for example nuclear power generating units, a large number of equipment access passages, personnel passages, construction passages and the like need to be reserved on floors and walls in the structural construction process. The reserved holes are secondary pouring areas, and reinforcement and concrete pouring are required to be performed subsequently according to the requirements of other areas. And reserving the original steel bar joint around the hole as a joint for later-stage steel bar binding. At present, as far as the applicant knows, most of the reinforcing steel bars at the positions are subjected to lap joint treatment, and the treatment method mainly has the following problems:
(1) overlap joint needs reserved reinforcing bar length longer, and this just means that the size of reserving the entrance to a cave can increase, and this brings more work load for later stage construction, and the destroyed risk of reserved reinforcing bar increases simultaneously.
(2) When the opening area is large, the diameter of the steel bar is also large, and if the overlap joint is adopted, the cost is increased.
(3) When the area of the opening is small, if the lap joint is adopted, the condition that the lap joint length cannot meet the standard requirement can occur.
(4) When the sleeve is used for conventional threaded connection, the operation is difficult, the sleeve is difficult to place, the steel bar needs to be bent, and the connection quality is influenced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the utility model provides a interlude steel bar connection device for both ends are fixed is applicable to the reinforcing bar of different diameters, the steel bar connection of different arrangement forms, improves the connection quality and the efficiency of construction of the fixed interlude reinforcing bar in both ends, and then by a wide margin reduction personnel's consumption, reduce the construction degree of difficulty.
The utility model provides a interlude connecting device for both ends are fixed, include: the device comprises an A end component, a B end component and a screw rod;
the A-side subassembly includes: the A end sleeve is fastened with a bolt;
the B-side subassembly includes: the B end sleeve is fastened on the bolt;
threads are machined at two ends of the screw rod and respectively form a thread end A and a thread end B; the A thread end of the screw is connected with the A end sleeve through an A end fastening bolt, and the B thread end of the screw is connected with the B end sleeve through a B end fastening bolt;
the inside of A end sleeve and B end sleeve all processes the screw thread and with the screw thread phase-match of screw rod.
Preferably, the length of the A-end sleeve is the sum of the length of the A-thread end and the width of the A-end fastening bolt.
Preferably, the wall thickness of the A-end sleeve is 10-15 mm.
Preferably, the thickness of the A-end fastening bolt is consistent with that of the A-end sleeve.
Preferably, the a-end fastening bolt is a hexagonal fastening bolt.
Preferably, the width of the hexagonal fastening bolt coincides with the diameter of the threaded end of the screw.
Preferably, the diameter of the middle section of the screw is the same as the outer diameter of the a-end sleeve.
Preferably, the length of the middle section of the screw rod is 2-3 times of the diameter of the fixed end steel bar.
Preferably, the length of the B-end sleeve is the sum of the length of the B-end threaded end and the width of a B-end fastening bolt; the wall thickness of the B-end sleeve is 10-15 mm; the thickness of the B-end fastening bolt is consistent with that of the B-end sleeve.
Preferably, the diameter of the middle section of the screw is the same as the outer diameter of the B-end sleeve.
Compared with the prior art, the utility model discloses a interlude connecting device for both ends are fixed, include: an A end assembly, a B end assembly and a screw. The A end assembly is connected with the fixed steel bar, and the B end assembly is connected with the movable steel bar; the other end of the movable reinforcing steel bar is also adopted by the utility model discloses a connecting device is connected with the fixed reinforcing steel bar of the other end again. The B end assembly can be adjusted according to movable reinforcing steel bars with different diameters or different arrangement forms, connection of various movable reinforcing steel bars and fixed reinforcing steel bars is achieved, a bridging function within a certain error range can be achieved, the size of a reserved hole is reduced to the maximum extent, connection quality and construction efficiency of middle section reinforcing steel bars fixed at two ends can be improved greatly, consumption of personnel is reduced greatly, construction difficulty is reduced, and the purposes of controlling cost, saving cost and improving engineering quality are achieved. Moreover, the connecting device is simple and convenient to operate, is suitable for connecting steel bars with various diameters, and greatly improves the working efficiency of site construction.
Drawings
FIG. 1 is a schematic view showing a reinforcing bar coupler for fixing two ends of a middle section;
FIG. 2 is a schematic view showing a construction of a fastening bolt;
FIG. 3 is a view showing a construction of a reinforcing bar coupler for fixing both ends in a field;
in the figure, the position of the upper end of the main shaft,
1 is an A-end sleeve, 2 is an A-end fastening bolt, 3 is a B-end sleeve, 4 is a B-end fastening bolt, 5 is a screw, 5-1 is an A-thread end, 5-2 is a B-thread end, 5-3 is a middle section, 6 is a fixed-end steel bar, and 7 is a movable steel bar.
Detailed Description
For further understanding of the present invention, embodiments of the present invention are described below with reference to examples, but it should be understood that these descriptions are only intended to further illustrate features and advantages of the present invention, and are not intended to limit the present invention.
The embodiment of the utility model discloses a interlude reinforcing bar connecting device for both ends are fixed, as shown in fig. 1, include: an A end assembly, a B end assembly and a screw rod;
the A-side subassembly includes: the A end sleeve 1 is fastened on the bolt 2;
the B-side subassembly includes: the B end of the sleeve 3 is provided with a fastening bolt 4;
threads are machined at two ends of the screw rod 5 and respectively comprise a thread end A5-1 and a thread end B5-2; the A thread end 5-1 of the screw rod 5 is connected with the A end sleeve 1 through an A end fastening bolt 2, and the B thread end 5-2 is connected with the B end sleeve 3 through a B end fastening bolt 4;
the interior of the A-end sleeve 1 and the B-end sleeve 3 are both provided with threads which are matched with the threads of the screw rod 5.
Connecting device, the stiff end reinforcing bar that will reserve the entrance to a cave forms effective connection with movable reinforcement. The connecting device can realize the connection of reinforcing steel bars with different diameters. The strength of the material used for the connecting device is larger than the maximum strength of the connecting steel bar, but not more than 15% of the maximum strength.
With connecting device cooperation stiff end reinforcing bar 6 of using, need make the screw thread when the unloading, thread length is fixed reinforcement diameter's twice, also can confirm the length of screw thread according to the tensile bearing capacity experiment, protect the screw thread not destroyed during reserving.
According to the utility model discloses, include: an A end component, a B end component and a screw rod.
Wherein, A end subassembly is used for being connected with stiff end reinforcing bar 6, and B end subassembly is used for being connected with activity reinforcing bar 7.
The A-side subassembly includes: the A end sleeve 1 is fastened on the bolt 2.
Threads are formed in the sleeve 1 at the end A and can be accurately connected with the thread end 5-1 at the end A of the screw rod 5; meanwhile, the thread of the fixed end steel bar 6 is matched for connecting with the fixed end steel bar 6;
the wall thickness of the A-end sleeve 1 is preferably 10-15 mm, and the diameter of the fixed-end steel bar 6 is adjusted.
The length of the A-end sleeve 1 can be selected to be the sum of the length 5-1 of the A-end threaded end and the width of the A-end fastening bolt 2.
Preferably, the thickness of the a-end fastening bolt 2 is the same as that of the a-end sleeve 1.
The A-end fastening bolt 2 is a hexagonal fastening bolt. As shown in fig. 2, e ═ d +5 mm.
The width of the hexagonal fastening bolt is consistent with the diameter of the threaded end of the screw rod.
The design principle of the end B is the same as that of the end A, and the end B can adjust all parts according to the diameter of the steel bar connected with the end B.
The inner part of the sleeve at the B end is provided with threads and can be accurately connected with the B thread end of the screw rod. Meanwhile, the thread matching with the movable steel bar 7 is used for connecting with the movable steel bar 7;
the length of the B-end sleeve 3 is the sum of the length of the B-thread end 5-2 and the width of the B-end fastening bolt 4; the wall thickness of the B-end sleeve 3 is 10-15 mm; the thickness of the B-end fastening bolt 4 is consistent with that of the B-end sleeve 3.
The diameter of the middle section 5-3 of the screw rod 5 is the same as the outer diameter of the B-end sleeve 3.
According to the utility model, both ends of the screw rod 5 are provided with threads, namely a thread end A5-1 and a thread end B5-2; the A thread end 5-1 of the screw is connected with the A end sleeve 1 through an A end fastening bolt 2, and the B thread end 5-2 is connected with the B end sleeve 3 through a B end fastening bolt 4.
The middle section 5-3 of the screw rod 5 does not need special processing and is cylindrical, and preferably, the diameter of the middle section 5-3 of the screw rod 5 is the same as the outer diameter of the barrel of the A-end sleeve 1.
The length of the middle section 5-3 of the screw rod 5 is 2-3 times of the diameter of the fixed end steel bar 6.
The length of the A flight end 5-1 is preferably 2 times the diameter of the middle section 5-3 of the screw 5, and the length of the B flight end 5-2 is preferably 2 times the diameter of the middle section 5-3 of the screw 5.
During field construction, as shown in fig. 3, the end a sleeve of the connecting device is screwed into the thread of the fixed-end steel bar, and the end a fastening bolt is screwed out of the end a sleeve; then the middle section reinforcing bar 8 is put in place, the B-end sleeve of the connecting device is screwed into the thread of the movable end reinforcing bar, the B fastening bolt is screwed out of the B-end sleeve, and finally, a torque wrench is used for applying torque to the sleeves and the fastening bolts at the two ends of A, B respectively until the requirements are met. The fixed reinforcing steel bar position of the other side is operated in the same way.
If the steel bars needing to be connected in the middle have certain negative deviation, a certain distance is allowed between the B-end screw rod 4 and the B-end steel bar 8, and the deviation is controlled within the radius range of the steel bars 8 as much as possible.
The connecting device can allow a certain negative deviation (insufficient length) of the movable end steel bar at the middle position. The connecting device needs to be subjected to mechanical experiments in advance through process evaluation, and can be implemented after meeting the requirements.
According to the design scheme of the connecting device, monomer processing and field implementation are completed, and the field implementation verification of the nuclear power unit can meet the field requirements and design requirements. The device has higher reliability.
From the field use situation, the device has the following effects:
1) the late-stage reinforcement of the secondary pouring area of the large hole opening is simpler and more convenient, and a large amount of adjustment time is saved.
2) The reserved length of the hole reinforcing steel bar is greatly shortened, and the accessible space of the reserved hole is larger.
3) The steel bar connection of different diameters and specifications is realized.
4) The accuracy requirement on the blanking size of the middle connecting reinforcing steel bar is reduced, and certain deviation is allowed to exist.
The above description of the embodiments is only intended to help understand the method of the present invention and its core idea. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the scope of the appended claims.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a interlude rebar connecting device for both ends are fixed which characterized in that includes: the device comprises an A end component, a B end component and a screw rod;
the A-side subassembly includes: the A end sleeve is fastened with a bolt;
the B-side subassembly includes: the B end sleeve is fastened with a bolt;
threads are machined at two ends of the screw rod and respectively form a thread end A and a thread end B; the A thread end of the screw is connected with the A end sleeve through an A end fastening bolt, and the B thread end of the screw is connected with the B end sleeve through a B end fastening bolt;
the inside of A end sleeve and B end sleeve all processes the screw thread and with the screw thread phase-match of screw rod.
2. The apparatus for connecting reinforcing bars at middle section fixed at two ends as claimed in claim 1, wherein the length of the A end sleeve is the sum of the length of the A thread end and the width of the A end fastening bolt.
3. The middle section steel bar connecting device for fixing two ends of a steel bar according to claim 1, wherein the wall thickness of the A-end sleeve is 10-15 mm.
4. The middle section rebar connecting device for fixing two ends as claimed in claim 1, wherein the thickness of the A-end fastening bolt is consistent with that of the A-end sleeve.
5. The middle section steel bar connecting device for fixing two ends according to claim 3, wherein the A-end fastening bolt is a hexagonal fastening bolt.
6. The middle section bar connecting device for both end fixing according to claim 5, wherein the width of the hexagonal fastening bolt is identical to the diameter of the threaded end of the screw.
7. The middle section bar connecting device for both end fixing according to claim 1, wherein the diameter of the middle section of the screw bar is the same as the outer diameter of the a-end sleeve.
8. The middle section steel bar connecting device for fixing two ends according to claim 1, wherein the length of the middle section of the screw rod is 2-3 times of the diameter of the steel bar at the fixing end.
9. The middle section steel bar connecting device for fixing two ends of the steel bar according to any one of claims 2 to 8, wherein the length of the B-end sleeve is the sum of the length of the B-end threaded end and the width of the B-end fastening bolt; the wall thickness of the B-end sleeve is 10-15 mm; the thickness of the B-end fastening bolt is consistent with that of the B-end sleeve.
10. The middle section steel bar connecting device for fixing two ends according to claim 9, wherein the diameter of the middle section of the screw is the same as the outer diameter of the B-end sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120834331.0U CN217054040U (en) | 2021-04-22 | 2021-04-22 | Middle section steel bar connecting device for fixing two ends |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120834331.0U CN217054040U (en) | 2021-04-22 | 2021-04-22 | Middle section steel bar connecting device for fixing two ends |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217054040U true CN217054040U (en) | 2022-07-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120834331.0U Active CN217054040U (en) | 2021-04-22 | 2021-04-22 | Middle section steel bar connecting device for fixing two ends |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217054040U (en) |
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2021
- 2021-04-22 CN CN202120834331.0U patent/CN217054040U/en active Active
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