CN210164144U - Straight-through connecting sleeve of reinforcing steel bar - Google Patents
Straight-through connecting sleeve of reinforcing steel bar Download PDFInfo
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- CN210164144U CN210164144U CN201920141356.5U CN201920141356U CN210164144U CN 210164144 U CN210164144 U CN 210164144U CN 201920141356 U CN201920141356 U CN 201920141356U CN 210164144 U CN210164144 U CN 210164144U
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Abstract
The utility model discloses a straight-through connecting sleeve of reinforcing steel bar, relating to the field of fixed buildings and aiming at the problem that the reinforcing steel bar is easy to shift in the horizontal direction in the connecting sleeve in the process of inserting the connecting sleeve, the following technical proposal is provided, the straight-through connecting sleeve of reinforcing steel bar comprises a sleeve connecting the end part of the reinforcing steel bar, the inner space of the sleeve is arranged into a cone, one end with larger inner diameter of the sleeve is arranged into a fixed end, one end with smaller inner diameter of the sleeve is arranged into a reinforcing steel bar connecting end, a sleeve block for fixing the reinforcing steel bar is arranged in the sleeve, an elastic piece is arranged at the connecting end of the sleeve facing the sleeve, the sleeve block is arranged into a split type in the sleeve, the sleeve block is matched with the cone-shaped inner space of the sleeve, the inner surface of the sleeve block is provided with a limiting bulge for limiting the reinforcing, the purpose of reducing the horizontal deviation of the steel bars in the sleeve is achieved.
Description
Technical Field
The utility model relates to a fixed building field, more specifically say, it relates to a through connecting sleeve of reinforcing bar.
Background
The connecting mode of reinforcing bars mainly has ligature overlap joint, mechanical connection, sleeve pipe grout connection and welding, wherein through the telescopic connecting method of reinforcing bar owing to can arrange intensive department homoenergetic nimble operation at narrow and small place reinforcing bar, be convenient for connect and the construction, and reinforcing bar connecting sleeve is prefabricated in the mill, and pollution-free, the no naked light operation during the construction operation has advantages such as environmental protection and safety concurrently.
Chinese patent with application number CN200820187916.2 discloses a steel bar connecting sleeve, which mainly comprises two conical sleeves, a fixing member, a fixing plate and a spring, wherein the large-diameter ends of the two conical sleeves are connected together, the fixing plate is arranged in the middle of the two conical sleeves, the inner cavities of the two conical sleeves are respectively provided with the conical fixing member, and the end surfaces of the fixing member are connected with the fixing plate through the spring.
This steel bar connection sleeve can realize the extension of reinforcing bar along its length direction through the tip of fixed two reinforcing bars, but the reinforcing bar takes place the skew of horizontal direction in the connection sleeve easily in the connection sleeve, causes the dislocation of connecting, reduces steel bar connection's stability, reduces the efficiency of construction.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a straight-through connecting sleeve of reinforcing bar has the advantage that reduces the skew of reinforcing bar tip horizontal direction in the sleeve.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a straight-through connecting sleeve of reinforcing bar, includes the sleeve of connecting reinforcement tip, telescopic inner space sets up to the toper, the one end of the great internal diameter of sleeve sets up to the stiff end, the one end of the less internal diameter of sleeve sets up to the bar connection end, be equipped with the cover block that is used for fixed reinforcement in the sleeve, the cover block is equipped with the elastic component towards telescopic link department, the cover block sets up in the sleeve and is split type, the cover block matches with telescopic toper inner space, the internal surface of cover block is equipped with the spacing arch that restriction reinforcing bar breaks away from the cover block, the one end that the cover block was kept away from to the elastic component is connected with the mounting, the tip of mounting is opened has the recess with.
By adopting the technical scheme, when the reinforcing steel bar is inserted into the sleeve from the reinforcing steel bar connecting end of the sleeve, the reinforcing steel bar firstly passes through the sleeve blocks, the sleeve blocks extrude the elastic part to move towards the direction of the fixing part after being subjected to the force of the reinforcing steel bar towards the direction of the fixing part, the outer surface of the sleeve block is subjected to the pressure from the inner wall of the sleeve to be reduced due to the increase of the inner diameter of the sleeve in the process of moving the split sleeve blocks in the sleeve, so that the distance between two adjacent sleeve blocks of the split sleeve blocks is increased, the inner diameter of a space formed by the sleeve blocks in a surrounding mode is increased, when the inner diameter surrounded by the sleeve blocks is larger than the diameter of the cross section of the reinforcing steel bar, the reinforcing steel bar penetrates through the inner space surrounded by the sleeve blocks and the elastic part along the length direction of the elastic part, when the end part of the reinforcing steel bar is abutted against the fixing part, the end part of the, at the moment, the elastic piece applies force towards the opening of the sleeve steel bar connecting end to the sleeve block for recovering the original length, so that the sleeve block is blocked between the inner wall of the sleeve and the steel bar.
When the reinforcing steel bar enters the sleeve, the sleeve block is positioned between the sleeve and the reinforcing steel bar, when the end part of the reinforcing steel bar is in a relatively static state in the sleeve block, certain gaps are formed between the sleeve block and the inner wall of the sleeve and between the sleeve block and the reinforcing steel bar, and on one hand, the gaps enable the middle part of the reinforcing steel bar along the length direction of the reinforcing steel bar to have certain displacement space in the horizontal direction, so that the anti-seismic performance after the reinforcing steel bar is connected is enhanced; on the other hand, the gap provides a space for pouring cement on the periphery of the steel bar to enable the cement to enter the sleeve, the gap between the sleeve inner sleeve block and the fixing piece is filled, and the strength of the steel bar after connection is improved. When the reinforcing steel bar has a movement trend of separating from the sleeve, the static friction force between the sleeve block and the reinforcing steel bar prevents the separation of the reinforcing steel bar, the inner surface of the sleeve block is provided with the limiting protrusions, the limiting protrusions are matched with the transverse ribs on the surface of the reinforcing steel bar, the friction force generated when the inner wall of the sleeve block is contacted with the reinforcing steel bar is increased by the limiting protrusions in one direction, the resistance of the reinforcing steel bar separating from the space in the sleeve is increased, on the other hand, the limiting protrusions are contacted with the transverse ribs on the surface of the reinforcing steel bar, and the limiting protrusions apply a force opposite to the movement direction of the transverse. The reinforcing bar is when the production leaves telescopic motion trend, drives the collets and removes towards telescopic bar connection end, and the collets has reduced the pressure to the elastic component at this in-process, and the elastic component is for resumeing the reverse power of applying towards telescopic bar connection end to the collets of original state, and the collets is inseparabler with the contact of reinforcing bar under the effect of sleeve inner wall for the reinforcing bar is inside more firm to its fixed when the telescopic motion trend that the production left. Because the one end of mounting is equipped with the recess, the recess provides the position of contact for the tip of reinforcing bar when sleeve and the tip of mounting contact, the tip of reinforcing bar falls into the space of recess when the tip of reinforcing bar contacts at the tip surface of mounting, when the tip of reinforcing bar takes place relative movement at the tip surface of mounting, the lateral wall of recess exerts the effort opposite rather than the direction of motion to the side surface of reinforcing bar tip, reduce reinforcing bar tip horizontal direction skew in the sleeve, prevent that the reinforcing bar breaks away from the tip surface of mounting, make the connection of reinforcing bar and mounting more stable, thereby the probability that the reinforcing bar drops from the connecting piece in the connection process has been reduced, the stability of reinforcing bar connection has been strengthened.
Preferably, the elastic member is provided as a spring.
By adopting the technical scheme, the middle part of the spring provides a movement space for the end part of the reinforcing steel bar to enter the sleeve to be contacted with the end surface of the fixing piece, and pressure is generated on the side surface of the end part of the reinforcing steel bar after the end part of the reinforcing steel bar enters the sleeve, so that the fixation of the sleeve to the end part of the reinforcing steel bar is enhanced; the spring can be set as a stainless steel pressure spring and other springs with higher bearing performance, the spring is utilized to have higher bearing axial pressure, the deformation energy of the spring is stored under the combined action of the sleeve block and the fixing piece, and when the end part of the reinforcing steel bar generates a movement trend of separating from the sleeve in the sleeve, the deformation energy of the spring is immediately converted into the kinetic energy of the sleeve block, so that the sleeve block is in contact with the reinforcing steel bar in a reinforcing way, and the fixing of the end part of the reinforcing steel bar is enhanced.
Preferably, a plurality of sleeve blocks are arranged in the sleeve along the circumferential direction of the space in the sleeve, and the inner diameter of the combined sleeve blocks is matched with the outer diameter of the corresponding steel bar.
By adopting the technical scheme, the sleeve blocks are conveniently taken out of the sleeve by arranging the sleeve blocks in the sleeve; and each sleeve block is arranged separately, so that the adjustable range of the distance between the adjacent sleeve blocks is enlarged, the variation range of the diameter of the steel bar which can be accommodated by the sleeve is enlarged, and the application range of the sleeve is enlarged.
Preferably, the sleeve block is provided with 2 blocks in the sleeve along the circumferential direction of the inner space of the sleeve.
Adopt above-mentioned technical scheme, can realize through 2 collets that the sleeve encloses the change adjustment of closing the inner space that forms, 2 collets are because the motion space of horizontal direction is limited in the sleeve, can carry out inseparable contact with the reinforcing bar, for setting up the collets more than 2, 2 collets have reduced the collets probability of staggering the overlapping in the sleeve, make the collets more firm to the fixed of reinforcing bar in the sleeve, reduce the probability that the reinforcing bar breaks away from in the sleeve.
Preferably, the outer surface of the sleeve block is sleeved with a fastener along the circumferential direction of the sleeve block.
Adopt above-mentioned technical scheme, split type cover block closes through enclosing of each part and plays the restriction to the side of reinforcing bar tip, and the fastener plays the restriction state to the surface of cover block, makes each part of cover block keep enclosing the state of closing, and the contact area of increase cover block internal surface and reinforcing bar tip side has reduced the probability that the cover block staggers in the sleeve for the cover block is more firm to the fixed of reinforcing bar tip in the sleeve, reduces the probability that the reinforcing bar breaks away from in the sleeve.
Preferably, the fastener is provided as a rubber ring or a plastic molded ring.
Adopt above-mentioned technical scheme, the reversible deformation of rubber circle and plastic part all makes it have higher elasticity, and the nested piece is at the in-process that moves along with the reinforcing bar towards the direction of sleeve stiff end, because the increase of sleeve internal diameter, the force that the sleeve inner wall was applyed on the reinforcing bar surface also reduces thereupon, and the elasticity of fastener makes the space that the nested piece encloses to close be the changeable space of elasticity to make the nested piece keep the tight hoop state to the reinforcing bar, strengthened the fastening action of nested piece to the reinforcing bar.
Preferably, the limiting protrusions are arranged in plurality along the length direction of the sleeve block.
By adopting the technical scheme, the limiting bulges are matched with the transverse ribs on the surface of the steel bar by arranging the plurality of limiting bulges, so that the limiting effect on the movement of the steel bar in the sleeve is increased in the contact process of the surface of the steel bar and the limiting bulges; on the other hand, the contact area between the sleeve and the steel bar is increased, so that the friction force generated by the inner surface of the sleeve to the steel bar is increased, the resistance when the steel bar leaves the sleeve is increased, and the separation of the end part of the steel bar from the sleeve is limited.
Preferably, the connection between the end of the fixing member and the sleeve is provided as a threaded connection.
By adopting the technical scheme, the connection between the fixing piece and the sleeve is detachable, so that a user can assemble the steel bars on a construction site conveniently, namely the steel bars are assembled immediately, and the situations that the excessive pre-connected steel bars cause waste and the too little pre-connected steel bars influence the construction progress are reduced; the threaded connection self-locking performance between the end part of the fixing part and the sleeve is good, and the stability of connection between the fixing part and the sleeve is improved, so that the connection between the reinforcing steel bar and the reinforcing steel bar is firmer.
To sum up, the utility model discloses following beneficial effect has:
1. the horizontal displacement of the end part of the steel bar in the sleeve is limited through the groove, so that the steel bar tends to be more stable in the sleeve;
2. the split sleeve blocks are arranged to fill gaps between the inner wall of the sleeve and the reinforcing steel bars, so that the sleeve blocks are connected with the reinforcing steel bars more tightly when the reinforcing steel bars generate a movement trend of separating from the sleeve, and the probability that the reinforcing steel bars fall from the sleeve is reduced;
3. the end part of the fixing part is provided with the groove, so that the displacement of the end part of the reinforcing steel bar in the connecting piece is limited, the fixing of the reinforcing steel bar and the fixing part is more stable, and the stability of connection between the reinforcing steel bars is enhanced.
Drawings
Fig. 1 is the structural schematic diagram of a straight-through connecting sleeve of the utility model relates to a reinforcing bar.
Fig. 2 is the structure diagram of the fixing member in the straight-through connecting sleeve of the reinforcing bar of the present invention.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: sleeve 1, collets 2, spring 3, mounting 4, spacing arch 5, recess 6.
A straight-through connecting sleeve for reinforcing steel bars is shown in figures 1 and 2 and comprises a sleeve 1, wherein the inner surface of the sleeve 1 is conical, sleeve blocks 2 are arranged in the sleeve 1, two sleeve blocks 2 are arranged along the circumferential direction of the space in the sleeve 1, the shape formed by the surrounding of the two sleeve blocks 2 is matched with the space in the sleeve 1, limiting bulges 5 are arranged on the inner wall of each sleeve block 2, and the limiting bulges 5 are matched with transverse ribs on the surface of the reinforcing steel bars.
The opening part of 1 stiff end of sleeve is connected with mounting 4, and mounting 4 is cylindricly, and the both ends of mounting 4 all are equipped with recess 6, and the inner space of recess 6 matches with the tip of reinforcing bar. The outside surface of the tip of mounting 4 is equipped with the screw thread arch, and the side surface of sleeve 1 stiff end opening part is equipped with the screw thread groove with the screw thread arch phase-match on mounting 4 surface.
The opening direction of nest block 2 orientation stiff end is equipped with spring 3, and spring 3 sets up along the length direction of its inner space in sleeve 1, and the one end that the nest block 2 was kept away from to spring 3 is with the tip butt of mounting 4.
When the connecting piece is used for connecting reinforcing steel bars, the sleeve block 2 is placed in the sleeve 1 from the opening of the fixed end of the sleeve 1, the sleeve block 2 is matched with the inner space of the sleeve 1, the spring 3 is placed in the position, close to the opening of the fixed end of the sleeve 1, of the sleeve block 2 along the length direction of the sleeve 1, the sleeve 1 is sleeved at the end of the fixing piece 4, the sleeve 1 is rotated to enable the inner wall of the sleeve 1 to be in threaded connection with the end of the fixing piece 4, the sleeve 1 is fixed to the other end of the fixing piece 4 according to the same operation after the sleeve 1 and the fixing piece 4 are screwed, after the prefabrication of the connecting piece is completed, the reinforcing steel bars are inserted from the opening with the smaller inner diameter of the sleeve 1 along the axial length direction of the sleeve 1, when the reinforcing steel bars are abutted against the end faces of the fixing piece 4; when the steel bar in the connecting piece needs to be taken out, the sleeve 1 at the end part of the fixing piece 4 is rotated to release the fixation between the fixing piece 4 and the sleeve 1, and the spring 3 and the sleeve block 2 are sequentially taken out, so that the fixation of the steel bar is released, and the steel bar can be taken out.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. The utility model provides a straight-through connecting sleeve of reinforcing bar, includes the sleeve of connecting reinforcement tip, telescopic inner space sets up to the toper, the one end of the great internal diameter of sleeve sets up to the stiff end, the one end of the less internal diameter of sleeve sets up to the rebar connecting end, be equipped with the cover block that is used for fixed reinforcement in the sleeve, the cover block is equipped with elastic component, its characterized in that towards telescopic link department: the nested piece sets up in the sleeve and is split type, nested piece and telescopic toper inner space match, the internal surface of nested piece is equipped with the spacing arch that the restriction reinforcing bar breaks away from the nested piece, the one end that the nested piece was kept away from to the elastic component is connected with the mounting, the tip of mounting is opened has the recess that matches with the reinforcing bar tip, the surface of nested piece is equipped with the fastener along its circumference cover.
2. A reinforcement through connection sleeve according to claim 1, wherein: the elastic member is provided as a spring.
3. A reinforcement through connection sleeve according to claim 1, wherein: the sleeve blocks are arranged in the sleeve along the circumferential direction of the space in the sleeve, and the inner diameter of the combined sleeve blocks is matched with the outer diameter of the corresponding steel bar.
4. A reinforcement through connection sleeve according to claim 3, wherein: the sleeve block is provided with 2 along the circumference of the space in the sleeve.
5. A reinforcement through connection sleeve according to claim 1, wherein: the fastener is arranged to be a rubber ring or a plastic molding ring.
6. A reinforcement through connection sleeve according to claim 1, wherein: the limiting protrusions are arranged in a plurality along the length direction of the sleeve block.
7. A reinforcement through connection sleeve according to claim 1, wherein: the connection between the end of the fixing piece and the sleeve is set as threaded connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920141356.5U CN210164144U (en) | 2019-01-24 | 2019-01-24 | Straight-through connecting sleeve of reinforcing steel bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920141356.5U CN210164144U (en) | 2019-01-24 | 2019-01-24 | Straight-through connecting sleeve of reinforcing steel bar |
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| Publication Number | Publication Date |
|---|---|
| CN210164144U true CN210164144U (en) | 2020-03-20 |
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| CN201920141356.5U Active CN210164144U (en) | 2019-01-24 | 2019-01-24 | Straight-through connecting sleeve of reinforcing steel bar |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109577561A (en) * | 2019-01-24 | 2019-04-05 | 富实特建材科技(广东)有限公司 | A kind of through type connection sleeve of reinforcing bar |
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- 2019-01-24 CN CN201920141356.5U patent/CN210164144U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109577561A (en) * | 2019-01-24 | 2019-04-05 | 富实特建材科技(广东)有限公司 | A kind of through type connection sleeve of reinforcing bar |
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