CN214034405U - Improved steel bar mechanical connecting sleeve - Google Patents
Improved steel bar mechanical connecting sleeve Download PDFInfo
- Publication number
- CN214034405U CN214034405U CN202022559135.5U CN202022559135U CN214034405U CN 214034405 U CN214034405 U CN 214034405U CN 202022559135 U CN202022559135 U CN 202022559135U CN 214034405 U CN214034405 U CN 214034405U
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- sleeve
- hole
- steel bar
- thread
- ribbed steel
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 90
- 239000010959 steel Substances 0.000 title claims abstract description 90
- 238000002788 crimping Methods 0.000 claims abstract description 18
- 238000003466 welding Methods 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 2
- 210000003205 muscle Anatomy 0.000 claims 1
- 239000004568 cement Substances 0.000 abstract description 11
- 230000003014 reinforcing effect Effects 0.000 abstract description 7
- 230000006835 compression Effects 0.000 description 22
- 238000007906 compression Methods 0.000 description 22
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 208000034189 Sclerosis Diseases 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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- Reinforcement Elements For Buildings (AREA)
Abstract
The utility model discloses an improved steel bar mechanical connecting sleeve, which comprises a first crimping sleeve and a second crimping sleeve, wherein the inner walls of the first crimping sleeve and the second crimping sleeve are both provided with a concave part and a flange part, and the outer wall is provided with external threads with opposite rotation directions; the connecting sleeve is provided with a first through hole, a second through hole and a third through hole, wherein the first through hole and the second through hole are provided with internal threads, and the third through hole is provided with two sections of internal threads with opposite rotation directions; one end of the first ribbed steel bar is provided with an external thread screwed with one section of internal thread of the third through hole, and one end of the second ribbed steel bar is provided with an external thread screwed with the other section of internal thread of the third through hole; this connecting sleeve not only can improve when two ribbed reinforcing bars receive not equidirectional pulling force the utility model discloses body and cement concrete's the reciprocal anchorage connect intensity, still can improve the mechanical connection intensity of sleeve and reinforcing bar.
Description
Technical Field
The utility model relates to a steel bar connection sleeve, concretely relates to improved generation steel bar mechanical connection sleeve.
Background
The twisted steel is widely applied to various building engineering, in particular to large, heavy, light thin-wall and high-rise building structures, mainly bears tensile stress in concrete, the connection between the twisted steel is an indispensable and vital procedure in the construction process, in the prior art, when the twisted steel is connected, the steel bar connecting sleeve is used for connecting two steel bars together in a threaded or radial segmented extrusion connection mode, has the advantages of simple and rapid operation, raw material saving, stable quality, no limitation of steel bar components and the like, and is widely applied to the connection of the steel bars of large buildings such as domestic and foreign large-scale building bridges, subways, hydraulic engineering and the like.
When adopting two twisted steel of connecting sleeve connection at present, two straight twisted steel can receive not equidirectional pulling force, lead to the rigid coupling intensity between reinforcing bar connecting sleeve and the straight twisted steel still to remain to improve easily, and the sleeve is after the cement concrete is built-in the middle of in addition, and its built-in cement concrete back and cement concrete reciprocal anchorage's joint strength is on the low side.
SUMMERY OF THE UTILITY MODEL
To the technical problem that above-mentioned exists, the utility model provides an improved generation reinforcing bar mechanical connection sleeve.
In order to realize the purpose, the utility model discloses the technical scheme who takes is:
an improved steel bar mechanical connecting sleeve comprises,
the first compression joint sleeve is a hollow cylindrical body, a first concave part and a first flange part are sequentially processed on the inner wall of the first compression joint sleeve from one end to the other end, a first external thread is processed on any end of the outer wall of the first compression joint sleeve in an extending mode along the length direction of the first compression joint sleeve, and the first external thread is a right-hand thread;
the second compression joint sleeve is a hollow cylindrical body, a second concave part and a second flange part are sequentially processed on the inner wall of the second compression joint sleeve from one end to the other end, and second external threads are processed on any end of the outer wall of the second compression joint sleeve in an extending mode along the length direction of the second compression joint sleeve, and are left-handed threads;
the connecting sleeve is provided with a first through hole and a second through hole which extend from the end part to the middle part of the connecting sleeve respectively at two ends, and a third through hole which is communicated with the first through hole and the second through hole to form a reducing diameter, wherein a first internal thread which is screwed with the first external thread is processed on the inner wall of the first through hole, a second internal thread which is screwed with the second external thread is processed on the inner wall of the second through hole, a third internal thread which is a right-handed thread is processed on the inner wall of the third through hole in a manner of extending from the end of the first through hole to the middle part of the third through hole, a fourth internal thread which is a left-handed thread is processed on the inner wall of the third through hole in a manner of extending from the end of the second through hole to the middle part of the third through hole;
one end of the first ribbed steel bar is processed with a third external thread, the third external thread is a right-handed thread, the first ribbed steel bar extends into the first compression joint sleeve, the first compression joint sleeve generates plastic deformation under radial pressure, the first concave part and the first flange part are tightly meshed with a transverse rib and a base circle on the first ribbed steel bar, and the third external thread section extends out of the first compression joint sleeve and is screwed with the third internal thread;
and one end of the second ribbed steel bar is processed with a fourth external thread which is a left-handed thread, the first ribbed steel bar extends into the second compression joint sleeve, the second compression joint sleeve generates plastic deformation under radial pressure, the second concave part and the second flange part are tightly meshed with the transverse rib and the base circle on the second ribbed steel bar, and a fourth external thread section extends out of the second compression joint sleeve and is screwed with a fourth internal thread.
Further, foretell improved steel bar mechanical connection sleeve, first depressed part internal diameter is less than first ribbed steel bar external diameter, and first flange portion internal diameter is less than first ribbed steel bar internal diameter, second depressed part internal diameter is less than second ribbed steel bar external diameter, and second flange portion internal diameter is less than second ribbed steel bar internal diameter.
Further, in the improved steel bar mechanical connecting sleeve, the arrangement gaps of the first concave part, the first flange part, the second concave part and the second flange part are 1-6 mm.
The utility model discloses when being applied by the scene, need be in advance the utility model discloses the cooperation sets up in the middle of the mould of cast in situ bridge pile foundation, pier stud (including the hollow mound of thin wall) etc. then, in the middle of the cement concrete of newly-mixing before will condensing, waits to newly-mix cement concrete sclerosis and stereotypes the back in the mould, the utility model discloses can firmly fix the sleeve in the middle of the cement concrete of sclerosis through the structure and the ribbed steel bar of self.
The embodiment of the utility model provides a beneficial effect is: the structure is more perfect and reasonable, the first ribbed steel bar firstly extends into the first compression joint sleeve for compression joint, the second ribbed steel bar extends into the second compression joint sleeve for compression joint, then the first compression joint sleeve, the second compression joint sleeve, the first ribbed steel bar and the second ribbed steel bar are synchronously butted through the connecting sleeve, the five parts share the tensile stress of the two ribbed steel bars, and after the third internal thread and the fourth internal thread processed in the third through hole of the connecting sleeve are opposite threads, the third external thread and the third internal thread at the end part of the first ribbed steel bar are screwed together and the fourth external thread and the fourth internal thread of the second ribbed steel bar are screwed together, the third external thread and the fourth internal thread form a mutually limited reverse force, so that when the two ribbed steel bars are subjected to pulling forces in different directions, the connecting strength of the utility model can be improved after the body is placed in cement concrete and fixed with the cement concrete, the mechanical connection strength of the sleeve and the steel bar can be improved, so that the connection structure between the steel bar connection sleeve and the straight thread steel bar is more perfect and reasonable on the basis of optimized design, and the construction efficiency and the joint connection quality are improved.
Drawings
FIG. 1 is a cross-sectional view of a first crimp sleeve of the improved rebar mechanical connection sleeve of the present invention;
FIG. 2 is a cross-sectional view of a second crimp sleeve;
FIG. 3 is a cross-sectional view of the coupling sleeve;
FIG. 4 is a cross-sectional view of the first crimp sleeve, the second crimp sleeve, and the connection sleeve connection;
FIG. 5 is a front view of a first ribbed bar;
FIG. 6 is a front view of a second ribbed bar;
FIG. 7 is a cross-sectional view of a first ribbed steel bar pressed into a first coupling sleeve;
FIG. 8 is a cross-sectional view of a second ribbed steel bar pressed into a second coupling sleeve;
fig. 9 is an overall connection cross-sectional view of the improved steel bar mechanical connection sleeve of the present invention.
Reference numerals in the drawings of the specification include: the steel bar connecting structure comprises a first pressure welding sleeve 1, a first concave part 11, a first flange part 12, a first external thread 13, a second pressure welding sleeve 2, a second concave part 21, a second flange part 22, a second external thread 23, a connecting sleeve 3, a first through hole 31, a second through hole 32, a third through hole 33, a first internal thread 34, a second internal thread 35, a third internal thread 36, a fourth internal thread 37, a first ribbed steel bar 4, a third external thread 41, a second ribbed steel bar 5, a fourth external thread 51 and a transverse rib 6.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
The utility model provides an improved steel bar mechanical connecting sleeve, which comprises,
as shown in fig. 1, the first pressure welding sleeve 1 is a hollow cylindrical body, a first concave portion 11 and a first flange portion 12 are sequentially formed on an inner wall thereof from one end to the other end, a first external thread 13 is formed on either end of the outer wall thereof so as to extend in a longitudinal direction thereof, and the first external thread 13 is a right-hand thread; as shown in fig. 2, the second pressure-bonding sleeve 2 is a hollow cylindrical body, and has a second recessed portion 21 and a second flange portion 22 formed on an inner wall thereof in this order from one end to the other end, and a second male screw 23 formed on either end of the outer wall thereof so as to extend in the longitudinal direction thereof, the second male screw 23 being a left-hand screw; the first compression joint sleeve 1 and the second compression joint sleeve 2 are both made of metal materials with good plasticity and yield strength lower than that of a first ribbed steel bar 4 and a second ribbed steel bar 5 which are described later; the inner diameter of the first concave part 11 is smaller than the outer diameter of the first ribbed steel bar 4, the inner diameter of the first flange part 12 is smaller than the inner diameter of the first ribbed steel bar 4, the inner diameter of the second concave part 21 is smaller than the outer diameter of the second ribbed steel bar 5, the inner diameter of the second flange part 22 is smaller than the inner diameter of the second ribbed steel bar 5, and the arrangement gap between the first concave part 11 and the first flange part 12 and the arrangement gap between the second concave part 21 and the second flange part 22 are 1-6 mm.
As shown in fig. 3, the connection sleeve 3 has a first through hole 31 and a second through hole 32 extending from the end portion to the middle portion of the connection sleeve 3 at both ends, respectively, and a third through hole 33 communicating the first through hole 31 and the second through hole 32 to form a reduced diameter, wherein a first internal thread 34 screwed with the first external thread 13 is formed on the inner wall of the first through hole 31, a second internal thread 35 screwed with the second external thread 23 is formed on the inner wall of the second through hole 32, a third internal thread 36 is formed on the inner wall of the third through hole 33 extending from the end of the first through hole 31 to the middle portion thereof, the third internal thread 36 is a right-handed thread, a fourth internal thread 37 is formed on the inner wall of the third through hole 33 extending from the end of the second through hole 32 to the middle portion thereof, and the fourth internal thread 37 is a left-handed thread;
as shown in fig. 4, the first male screw 13 is screwed into the third female screw 36 of the connecting sleeve 3, and the second male screw 23 is screwed into the fourth female screw 37, whereby the first pressure-bonding sleeve 1, the connecting sleeve 3, and the second pressure-bonding sleeve 2 are connected.
As shown in fig. 5, one end of the first ribbed steel bar 4 is provided with a third external thread 41, and the third external thread 41 is a right-hand thread; as shown in fig. 7, the first ribbed steel bar 4 extends into the first crimping sleeve 1, the first crimping sleeve 1 is plastically deformed under radial pressure, the first concave part 11 and the first flange part 12 are tightly engaged with the transverse rib 6 and the base circle on the first ribbed steel bar 4, and the third external thread 41 extends out of the first crimping sleeve 1 and is screwed with the third internal thread 36;
as shown in fig. 6, one end of the second ribbed steel bar 5 is provided with a fourth external thread 51, and the fourth external thread 51 is a left-hand thread; as shown in fig. 8, the first ribbed steel bar 4 is inserted into the second pressure welding sleeve 2, the second pressure welding sleeve 2 is plastically deformed under radial pressure, the second concave portion 21 and the second flange portion 22 are tightly engaged with the transverse rib 6 and the base circle of the second ribbed steel bar 5, and the fourth external thread 51 is inserted into the second pressure welding sleeve 2 and is screwed with the fourth internal thread 37.
Specific connection mode
As shown in fig. 9, first, the first ribbed steel bar 4 is inserted into the first crimp sleeve 1 and the first external thread 13 is protruded out of the first crimp sleeve 1, the second ribbed steel bar 5 is inserted into the second crimp sleeve 2 and the second external thread 23 is protruded out of the second crimp sleeve 2, then, the first crimping sleeve 1 and the second crimping sleeve 2 are radially pressed by a crimping machine, so that the first ribbed steel bar 4 and the first crimping sleeve 1, and the second ribbed steel bar 5 and the second crimping sleeve 2 are crimped together, when the crimping is finished, the first concave part 11 is meshed with the transverse rib 6 of the first ribbed steel bar 4, the first flange part 12 is meshed with the base circle of the first ribbed steel bar 4, the second concave part 21 is meshed with the transverse rib 6 of the second ribbed steel bar 5, and the second flange part 22 is meshed with the base circle of the second ribbed steel bar 5, so that the first crimping sleeve 1 and the first ribbed steel bar 4 as well as the second crimping sleeve 2 and the second ribbed steel bar 5 are tightly connected; then the connecting sleeve 3 is taken out, the first external thread 13 of the first pressure welding sleeve 1, the first internal thread 34 of the connecting sleeve 3 and the third external thread 41 of the first ribbed steel bar 4 are simultaneously screwed with the third internal thread 36 of the connecting sleeve 3, the second external thread 23 of the second pressure welding sleeve 2, the second internal thread 35 of the connecting sleeve 3 and the fourth external thread 51 of the second ribbed steel bar 5 are simultaneously screwed with the fourth internal thread 37 of the connecting sleeve 3, and therefore the connection of the first ribbed steel bar 4, the first pressure welding sleeve 1, the connecting sleeve 3, the second pressure welding sleeve 2 and the second ribbed steel bar 5 is completed.
Because the third internal thread 36 and the fourth internal thread 37 of processing in the third through-hole 33 of connecting sleeve 3 are opposite screw thread, after the third external screw thread 41 of the tip of first ribbed steel bar 4 was screwed with third internal thread 36 and the fourth external screw thread 51 of second ribbed steel bar 5 was screwed with fourth internal thread 37, both formed the counterforce of restriction each other, thereby when two ribbed steel bars received the pulling force of equidirectional, improve the utility model discloses place behind the cement concrete in this body with cement concrete reciprocal anchorage's joint strength, and improve the mechanical connection intensity of sleeve and reinforcing bar, make the connection structure between reinforcing bar connecting sleeve and the straight thread reinforcing bar perfect more on the basis of optimal design, reasonable, be favorable to improving efficiency of construction and articulate quality.
The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (3)
1. The utility model provides an improved generation muscle mechanical connection sleeve (3), its characterized in that: comprises the steps of (a) preparing a mixture of,
the first pressure welding sleeve (1) is a hollow cylindrical body, a first concave part (11) and a first flange part (12) are sequentially processed on the inner wall of the first pressure welding sleeve from one end to the other end, a first external thread (13) is processed on any end of the outer wall of the first pressure welding sleeve in an extending mode along the length direction of the first pressure welding sleeve, and the first external thread (13) is a right-hand thread;
a second pressure welding sleeve (2) which is a hollow cylindrical body, wherein a second concave part (21) and a second flange part (22) are sequentially processed on the inner wall of the second pressure welding sleeve from one end to the other end, a second external thread (23) is processed on any end of the outer wall of the second pressure welding sleeve in an extending way along the length direction of the second pressure welding sleeve, and the second external thread (23) is a left-hand thread;
the connecting sleeve (3) is provided with a first through hole (31) and a second through hole (32) extending from the end part to the middle part of the connecting sleeve (3) and a third through hole (33) communicating the first through hole (31) and the second through hole (32) in diameter reduction, wherein a first internal thread (34) screwed with the first external thread (13) is processed on the inner wall of the first through hole (31), a second internal thread (35) screwed with the second external thread (23) is processed on the inner wall of the second through hole (32), a third internal thread (36) extends from the end of the first through hole (31) to the middle part of the third through hole (33) and is processed on the inner wall of the third through hole (33), the third internal thread (36) is a right-handed thread, a fourth internal thread (37) extends from the end of the second through hole (32) to the middle part of the third through hole (33), and the fourth internal thread (37) is a left-handed thread;
the first ribbed steel bar (4) is provided with a third external thread (41) at one end, the third external thread (41) is a right-handed thread, the first ribbed steel bar (4) extends into the first crimping sleeve (1), the first crimping sleeve (1) generates plastic deformation under radial pressure, the first concave part (11) and the first flange part (12) are tightly meshed with the transverse rib (6) and the base circle on the first ribbed steel bar (4), and the section of the third external thread (41) extends out of the first crimping sleeve (1) and is screwed with the third internal thread (36);
and one end of the second ribbed steel bar (5) is processed with a fourth external thread (51), the fourth external thread (51) is a left-hand thread, the first ribbed steel bar (4) extends into the second pressure welding sleeve (2), the second pressure welding sleeve (2) generates plastic deformation under radial pressure, the second concave part (21) and the second flange part (22) are tightly meshed with the transverse rib (6) and the base circle on the second ribbed steel bar (5), and the fourth external thread (51) extends out of the second pressure welding sleeve (2) and is screwed with the fourth internal thread (37).
2. An improved mechanical connecting sleeve (3) for steel bars, according to claim 1, characterized in that: the internal diameter of the first concave part (11) is smaller than the external diameter of the first ribbed steel bar (4), the internal diameter of the first flange part (12) is smaller than the internal diameter of the first ribbed steel bar (4), the internal diameter of the second concave part (21) is smaller than the external diameter of the second ribbed steel bar (5), and the internal diameter of the second flange part (22) is smaller than the internal diameter of the second ribbed steel bar (5).
3. An improved mechanical connecting sleeve (3) for steel bars according to claim 1 or 2, characterized in that: the arrangement gaps of the first concave part (11), the first flange part (12), the second concave part (21) and the second flange part (22) are 1-6 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022559135.5U CN214034405U (en) | 2020-11-07 | 2020-11-07 | Improved steel bar mechanical connecting sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022559135.5U CN214034405U (en) | 2020-11-07 | 2020-11-07 | Improved steel bar mechanical connecting sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214034405U true CN214034405U (en) | 2021-08-24 |
Family
ID=77357268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022559135.5U Expired - Fee Related CN214034405U (en) | 2020-11-07 | 2020-11-07 | Improved steel bar mechanical connecting sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214034405U (en) |
-
2020
- 2020-11-07 CN CN202022559135.5U patent/CN214034405U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210824 |
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| CF01 | Termination of patent right due to non-payment of annual fee |