CN220150691U - Reinforcing steel bar connecting sleeve - Google Patents
Reinforcing steel bar connecting sleeve Download PDFInfo
- Publication number
- CN220150691U CN220150691U CN202320322016.9U CN202320322016U CN220150691U CN 220150691 U CN220150691 U CN 220150691U CN 202320322016 U CN202320322016 U CN 202320322016U CN 220150691 U CN220150691 U CN 220150691U
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- CN
- China
- Prior art keywords
- cylinder
- sealing cover
- cover
- concrete
- reinforcing bar
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- 229910001294 Reinforcing steel Inorganic materials 0.000 title claims abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 39
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 20
- 239000010959 steel Substances 0.000 claims abstract description 20
- 210000001503 joint Anatomy 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Landscapes
- Joining Of Building Structures In Genera (AREA)
Abstract
The utility model discloses a steel bar connecting sleeve, which comprises: a cylinder having a first end and a second end in an axial direction, the first end being provided with a first cover, the second end being provided with a second cover, at least an inlet joint being provided on an outer circumference of the cylinder, concrete being injected into the cylinder through the inlet joint, a free end of a first reinforcing bar extending from the first end of the cylinder into the first cover; the free end of the second reinforcing steel bar penetrates through the second sealing cover from the second end of the cylinder body and stretches into the cylinder body; the pre-tightening disc is arranged in the cylinder body and close to the second sealing cover, the pre-tightening disc is configured to axially move, a pin shaft is arranged on the disc surface of the pre-tightening disc, which faces the second sealing cover, and the pin shaft penetrates through the second sealing cover; and the elastic ring is arranged between the pre-tightening disk and the second sealing cover.
Description
Technical Field
The utility model relates to the technical field of building connecting members, in particular to a steel bar connecting sleeve.
Background
In the prior art, two steel bars extending into the connecting sleeve are usually connected by pouring concrete into the connecting sleeve, specifically, the connecting sleeve comprises a cylinder body and sealing covers arranged at two ends of the cylinder body, an inlet is arranged on the cylinder body, when the two steel bars are required to be connected, the free ends of the two steel bars extend into the cylinder body from the two ends of the cylinder body respectively (or the free end of one steel bar is in threaded connection with the sealing cover at one end of the cylinder body, and the free end of the other steel bar extends into the cylinder body), then, concrete is poured into the cylinder body through the inlet, and after the concrete is solidified, the free ends of the steel bars are buried in the concrete, so that the two steel bars are connected through the connecting sleeve.
It is easy to understand that if the concrete injected into the cylinder is not sufficiently filled (pressure is insufficient), shrinkage porosity and shrinkage cavity are easily generated after the concrete is solidified, and thus the bonding strength with the reinforcing steel bar is reduced, and thus, it is required to fill the mixed soil injected into the cylinder, however, the connecting sleeve in the prior art does not have a structure for monitoring whether the concrete is filled, and thus, the degree of filling the concrete can be detected only by experience or by external pressure.
Disclosure of Invention
Aiming at the technical problems in the prior art, the embodiment of the utility model provides a steel bar connecting sleeve.
In order to solve the technical problems, the technical scheme adopted by the embodiment of the utility model is as follows:
a steel bar connecting sleeve, comprising:
a cylinder having a first end and a second end in an axial direction, the first end being provided with a first cover, the second end being provided with a second cover, at least an inlet joint being provided on an outer circumference of the cylinder, concrete being injected into the cylinder through the inlet joint, a free end of a first reinforcing bar extending from the first end of the cylinder into the first cover; the free end of the second reinforcing steel bar penetrates through the second sealing cover from the second end of the cylinder body and stretches into the cylinder body;
the pre-tightening disc is arranged in the cylinder body and close to the second sealing cover, the pre-tightening disc is configured to axially move, a pin shaft is arranged on the disc surface of the pre-tightening disc, which faces the second sealing cover, and the pin shaft penetrates through the second sealing cover;
and the elastic ring is arranged between the pre-tightening disc and the second sealing cover, and when the head of the pin shaft extends out of the second sealing cover by pushing against the pre-tightening disc to compress the elastic ring, the elastic ring indicates that the concrete in the cylinder is filled.
Preferably, a pushing bolt is further arranged on the second sealing cover in a penetrating manner, and the pushing bolt is in threaded fit with the second sealing cover; wherein:
and after the concrete is stopped being injected into the cylinder, screwing the pushing bolt to tightly prop up the pre-tightening disk.
Preferably, a guide bush is formed on the inner side in the axial direction of the second cover; the pre-tightening disc is sleeved on the guide sleeve; the guide sleeve is provided with a check ring for the shaft, and the check ring for the shaft is used for limiting the pre-tightening disc.
Preferably, an outlet connector is also provided on the periphery of the cylinder, which allows the concrete to flow out.
Preferably, the free end of the first steel bar is provided with external threads, and the free end of the first steel bar is in threaded connection with the first sealing cover; wherein:
the head of the free end of the first steel bar is processed into an oblate shape; and a polygonal groove is processed on the inner side of the first sealing cover.
Preferably, a first flange is formed on the outer side of the first sealing cover, and the first flange is in butt joint with the first end of the cylinder; and a second flange plate is formed on the outer side of the second sealing cover and is in butt joint with the second end of the cylinder body.
Preferably, a plurality of spiral grooves which extend along the circumferential direction and are axially arranged are machined on the inner wall of the cylinder body.
Preferably, the pin shafts at least comprise two, and at least two pin shafts are uniformly distributed in the circumferential direction.
Preferably, the pushing bolts at least comprise two pushing bolts, and at least two pushing bolts are circumferentially and uniformly distributed and are alternately arranged with the pin shafts.
Compared with the prior art, the steel bar connecting sleeve has the beneficial effects that.
1. By arranging the pre-tightening disc and the elastic ring in the cylinder body, whether concrete is filled or not can be judged by whether the pin shaft extends out of the end part of the cylinder body or not.
2. After the concrete is injected, the elastic force of the elastic ring to the pre-tightening disk enables the pre-tightening disk to keep the pressure of the concrete.
3. And screwing the pushing bolt to further maintain the pressure of the concrete.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the utility model, as claimed.
An overview of various implementations or examples of the technology described in this disclosure is not a comprehensive disclosure of the full scope or all of the features of the technology disclosed.
Drawings
Fig. 1 is a front cross-sectional view of a reinforcing bar coupler sleeve according to an embodiment of the present utility model.
Fig. 2 is a cross-sectional view taken along A-A of fig. 1.
Fig. 3 is a view in the B direction of fig. 1.
Fig. 4 is a view showing a use state of the reinforcing bar coupling sleeve according to the embodiment of the present utility model.
Reference numerals:
10-a cylinder; 11-helical grooves; 12-inlet fitting; 13-outlet connection; 21-a first cover; 211-a first flange plate; 212-polygonal grooves; 22-a second cover; 221-a second flange; 222-a guide sleeve; 30-pre-tightening the disc; 31-pin shafts; 40-elastic ring; 50-a retainer ring for the shaft; 60-pushing the bolt; 100-a first reinforcing bar; 101-head; 200-second reinforcing steel bar.
Detailed Description
In order to keep the following description of the embodiments of the present utility model clear and concise, the detailed description of known functions and known components thereof have been omitted.
As shown in fig. 1 to 3, the disclosed embodiment of the present utility model discloses a reinforcing bar coupling sleeve, which comprises: the cylinder 10, the first sealing cover 21, the second sealing cover 22, the pre-tightening disk 30, the elastic ring 40 and the pushing bolt 60.
The cylinder 10 has first and second ends in the axial direction; the first cover 21 is fastened to the first end of the cylinder 10 and is in butt joint with the cylinder 10 by means of the first flange 211 and the fastening piece, and the second cover 22 is fastened to the second end of the cylinder 10 and is in butt joint with the cylinder 10 by means of the second flange 221 and the fastening piece. An inlet fitting 12 and an outlet fitting 13 are provided on the outer periphery of the barrel 10, the inlet fitting 12 being adjacent to the first end of the barrel 10 and the outlet fitting 13 being adjacent to the second end of the barrel 10. The delivery lines are connected to the inlet joint 12 and the outlet joint 13, respectively, so that concrete is injected into the cylinder 10 through the inlet joint 12, and when more gas is present in the concrete, the concrete flows out of the outlet joint 13, and the concrete mixed with the gas is led out until the concrete entering the cylinder 10 is less gaseous. Preferably, a plurality of spiral grooves 11 are formed on the inner wall of the cylinder 10, extending in the circumferential direction and axially arranged, and the spiral grooves 11 are used to improve the binding ability of the concrete to the cylinder 10.
The free end of the first reinforcing bar 100 is processed with external threads, the free end of the first reinforcing bar 100 is threaded through the first sealing cover 21 and is in threaded connection with the first sealing cover 21, so that the first reinforcing bar 100 is connected with the cylinder 10, the head 101 of the free end of the first reinforcing bar 100 is processed with an oblate shape, and the inner side of the first sealing cover 21 is processed with a polygonal groove 212, thus, in the solidification process and after solidification of concrete injected into the cylinder 10, the concrete generates larger resistance to the head 101 of the first reinforcing bar 100 to limit the rotation of the first reinforcing bar 100, and the polygonal groove 212 simultaneously limits torsion possibly existing in the concrete.
The second cover 22 is formed at an inner side thereof with an axially extending guide sleeve 222, and the second reinforcing bar 200 is inserted through the guide sleeve 222 to be protruded into the cylinder 10, preferably, the free end of the second reinforcing bar 200 is protruded to a degree close to the first cover 21. The guide sleeve 222 guides the second reinforcing bar 200 for effectively restricting the inclination of the second reinforcing bar 200.
The pre-tightening disk 30 is sleeved outside the guide sleeve 222, the pre-tightening disk 30 can slide along the axial direction, a shaft check ring 50 is arranged on the guide sleeve 222 at the inner side of the pre-tightening disk 30, and the shaft check ring 50 is used for limiting the pre-tightening disk 30.
The elastic ring 40 is sleeved outside the guide sleeve 222 and between the pre-tightening disk 30 and the second cover 22, and the elastic ring 40 is used for applying elastic force to the pre-tightening disk 30.
The disc surface of the pre-tightening disc 30 facing the second sealing cover 22 is provided with two pins 31, the pins 31 are provided with scores, the two pins 31 are symmetrically arranged, the pins 31 penetrate through the second sealing cover 22, when the pre-tightening disc 30 abuts against the shaft check ring 50, the end part of the pins 31 is retracted into the second sealing cover 22, and when the pre-tightening disc 30 contracts the elastic ring 40 to a certain extent, the end part of the pins 31 protrudes out of the second sealing cover 22, and the scores are aligned with the end surface of the second sealing cover 22.
As shown in fig. 2 and 3, the pushing bolts 60 include two pushing bolts 60, the two pushing bolts 60 are symmetrically arranged, the pushing bolts 60 penetrate the second cover 22 from the outside of the second cover 22 to extend to the pre-tightening disk 30, and the pushing bolts are in threaded fit with the second cover 22.
The method of using the above-described coupling sleeve and thereby illustrating the advantages of the coupling sleeve is described below.
First, the free end of the first reinforcing bar 100 is screwed into the first cover 21 by rotating the drum 10, and then concrete is injected into the drum 10 through the inlet joint 12.
At the later stage of pouring, the pouring pressure of the concrete increases, and as shown in fig. 3, the concrete pushes the pre-tightening disk 30 against the elastic force of the elastic ring 40 to move toward the second cover 22, and at the same time, the elastic ring 40 contracts, and the pin shaft 31 moves outward with the pre-tightening disk 30.
When the end of the pin 31 protrudes from the second cover 22 and the score on the pin 31 is aligned with the second cover 22, the pressurizing of the concrete is stopped, the pressure of the concrete is maintained for a while, and then the two joints are plugged.
The connection sleeve is allowed to stand for a certain time, and then the pushing bolt 60 is screwed to push against the pre-tightening disk 30 to perform pressure maintaining again.
It should be noted that:
so that the elastic force of the elastic ring 40 is configured to: when the pin 31 is extended to the extent that the score is aligned with the second cover 22, the elastic force of the elastic ring 40 to the pre-tightening disk 30 makes the pressure formed by the concrete in the cylinder 10 not less than the pressure corresponding to the required filling degree. In this manner, the extension of the pin 31 into alignment with the score and second cap 22 indicates that the concrete within the barrel 10 has satisfied sufficient pressure to maintain the concrete in a full condition.
The connecting sleeve provided by the utility model has the advantages that:
1. by disposing the pre-tightening disk 30 and the elastic ring 40 in the cylinder 10, whether or not the concrete is filled can be determined by whether or not the pin shaft 31 extends out of the end of the cylinder 10.
2. After the concrete is injected, the elastic force of the elastic ring 40 to the pre-tightening disk 30 causes the pre-tightening disk 30 to pressurize the concrete.
3. The pushing bolt 60 is screwed, so that the pressure of the concrete is maintained again.
The above embodiments are only exemplary embodiments of the present utility model and are not intended to limit the present utility model, the scope of which is defined by the claims. Various modifications and equivalent arrangements of this utility model will occur to those skilled in the art, and are intended to be within the spirit and scope of the utility model.
Claims (9)
1. A steel bar connecting sleeve, comprising:
a cylinder having a first end and a second end in an axial direction, the first end being provided with a first cover, the second end being provided with a second cover, at least an inlet joint being provided on an outer circumference of the cylinder, concrete being injected into the cylinder through the inlet joint, a free end of a first reinforcing bar extending from the first end of the cylinder into the first cover; the free end of the second reinforcing steel bar penetrates through the second sealing cover from the second end of the cylinder body and stretches into the cylinder body;
the pre-tightening disc is arranged in the cylinder body and close to the second sealing cover, the pre-tightening disc is configured to axially move, a pin shaft is arranged on the disc surface of the pre-tightening disc, which faces the second sealing cover, and the pin shaft penetrates through the second sealing cover;
and the elastic ring is arranged between the pre-tightening disc and the second sealing cover, and when the head of the pin shaft extends out of the second sealing cover by pushing against the pre-tightening disc to compress the elastic ring, the elastic ring indicates that the concrete in the cylinder is filled.
2. The steel bar connecting sleeve according to claim 1, wherein a pushing bolt is further arranged on the second sealing cover in a penetrating manner, and the pushing bolt is in threaded fit with the second sealing cover; wherein:
and after the concrete is stopped being injected into the cylinder, screwing the pushing bolt to tightly prop up the pre-tightening disk.
3. The reinforcing bar connecting sleeve as set forth in claim 1, wherein a guide sleeve is formed at an axially inner side of the second cover; the pre-tightening disc is sleeved on the guide sleeve; the guide sleeve is provided with a check ring for the shaft, and the check ring for the shaft is used for limiting the pre-tightening disc.
4. The reinforcing bar coupler sleeve according to claim 1, wherein an outlet fitting is further provided on the outer circumference of the cylinder, the outlet fitting allowing the concrete to flow out.
5. The reinforcing bar coupler sleeve according to claim 1, wherein the free end of the first reinforcing bar is externally threaded, and the free end of the first reinforcing bar is threadedly coupled to the first cover; wherein:
the head of the free end of the first steel bar is processed into an oblate shape; and a polygonal groove is processed on the inner side of the first sealing cover.
6. The reinforcing bar coupler sleeve according to claim 1, wherein a first flange is formed on an outer side of the first cover, the first flange being abutted with the first end of the cylinder; and a second flange plate is formed on the outer side of the second sealing cover and is in butt joint with the second end of the cylinder body.
7. The reinforcing bar connecting sleeve as set forth in claim 1, wherein a plurality of spiral grooves extending in a circumferential direction and axially arranged are formed on an inner wall of the cylinder.
8. The steel bar connecting sleeve according to claim 2, wherein the pin shafts comprise at least two pins, and at least two pins are uniformly distributed in the circumferential direction.
9. The steel bar connecting sleeve according to claim 8, wherein the pushing bolts comprise at least two pushing bolts, and at least two pushing bolts are circumferentially uniformly distributed and alternately arranged with the pin shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320322016.9U CN220150691U (en) | 2023-02-24 | 2023-02-24 | Reinforcing steel bar connecting sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320322016.9U CN220150691U (en) | 2023-02-24 | 2023-02-24 | Reinforcing steel bar connecting sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220150691U true CN220150691U (en) | 2023-12-08 |
Family
ID=89021925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320322016.9U Active CN220150691U (en) | 2023-02-24 | 2023-02-24 | Reinforcing steel bar connecting sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220150691U (en) |
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2023
- 2023-02-24 CN CN202320322016.9U patent/CN220150691U/en active Active
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