CN211949225U - Steel bar connecting mechanism - Google Patents
Steel bar connecting mechanism Download PDFInfo
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- CN211949225U CN211949225U CN202020299491.5U CN202020299491U CN211949225U CN 211949225 U CN211949225 U CN 211949225U CN 202020299491 U CN202020299491 U CN 202020299491U CN 211949225 U CN211949225 U CN 211949225U
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- expansion locking
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- retaining member
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Abstract
The utility model belongs to the technical field of the connecting device technique and specifically relates to a steel bar connection mechanism. The reinforcing steel bar connecting mechanism comprises an expansion locking piece and an extrusion piece, wherein the rigidity of the extrusion piece is greater than that of the expansion locking piece, the expansion locking piece is of a C-shaped cylindrical structure with an opening in the length direction, a groove penetrating in the length direction is formed in the outer wall or the inner wall of the expansion locking piece, two ends of the outer wall of the expansion locking piece are provided with first tapered surfaces which are gradually reduced, and the inner wall of the expansion locking piece is provided with annular teeth; the main part of extruded article is cylinder type structure, and the internal diameter of extruded article main part is less than the external diameter of inflation retaining member, and the second toper face with inflation retaining member's first toper face matched with is all seted up at the inner wall both ends of extruded article. The utility model discloses the inflation retaining member that the main part is "C" type structure still possesses certain self expansibility after being extruded the attenuation by the extruded article, not only can be internal to compress tightly the reinforcing bar, can form inseparable spacing relation outward with the extruded article moreover.
Description
Technical Field
The utility model belongs to the technical field of the connecting device technique and specifically relates to a steel bar connection mechanism.
Background
With the development of the construction industry, the consumption of reinforcing steel bars, the diameter of the reinforcing steel bars and the arrangement density of the reinforcing steel bars are increased, and the connection method of the reinforcing steel bars with the large diameter becomes the key of the design and construction of a building structure and directly influences the engineering quality, the construction speed, the economic benefit and the construction safety. The traditional connection between the steel bars mostly adopts the methods of iron wire bundling or electric welding and the like, and the methods have the disadvantages of slow construction speed, high labor intensity and low efficiency.
The existing connection mode between the steel bars is that a connecting sleeve is adopted, the connecting sleeve generally comprises an inner sleeve and an outer sleeve, the rigidity of the outer sleeve is larger than that of the inner sleeve, the inner diameter of the outer sleeve is smaller than the outer diameter of the inner sleeve, when the connecting sleeve is used, the two steel bars are respectively inserted into two ends of the inner sleeve, and then the two ends of the inner sleeve are respectively extruded inwards through the outer sleeve, so that the two steel bars are extruded and fixed while the extrusion force of the inner sleeve is prolonged along the length direction. Most of the existing inner sleeves are of an integrated cylindrical structure or a split type cylindrical structure spliced up and down, conical surfaces are arranged at two ends of the cylindrical structure, and one end of the inner wall of the outer sleeve is provided with a surface matched with the conical surface of the inner sleeve. The connecting sleeve improves the construction efficiency, but still has at least the following defects in practical use: (1) when the integrated cylindrical inner sleeve structure is extruded, the cylinder wall becomes thin and is prolonged, only the force for compressing the steel bars exists in the process, the self expansion force is small, the tightness of the fixing between the integrated cylindrical inner sleeve structure and the outer sleeve is required to be improved, the split type upper and lower spliced inner sleeve is easy to misplace in the process of sleeving the outer sleeve and needs to be manually adjusted, the dislocation is easily generated when the integrated cylindrical inner sleeve structure is extruded by the outer sleeve to influence the effect of compressing the steel bars, the self expansion force of the split type upper and lower spliced inner sleeve is small, and the tightness of the fixing between the integrated; (2) the direction of the outer sleeve is easy to misplace when the outer sleeve and the inner sleeve are spliced, the outer sleeve and the inner sleeve need to be distinguished and clamped, and once the outer sleeve and the inner sleeve are not distinguished in time, the outer sleeve and the inner sleeve are inevitably damaged in the pressing process; (3) the inner sleeve can generate extension deformation in the length direction in the extrusion process, and has larger extrusion force on the inner wall of the outer sleeve in the deformation process, so that the pushing resistance of the outer sleeve is increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a steel bar connection mechanism, thereby overcome among the aforementioned prior art that the inner skleeve receives self bulging force less after the extrusion, the outer sleeve put the direction of misplacing easily when splicing with the inner skleeve, the inner skleeve can produce length direction's extension deformation in the extrusion process and increased the not enough of outer sleeve propulsive resistance.
The utility model provides a technical scheme that its technical problem adopted is:
a steel bar connecting mechanism comprises an expansion locking part and an extrusion part, wherein the rigidity of the extrusion part is greater than that of the expansion locking part, the expansion locking part is of a C-shaped cylindrical structure with an opening in the length direction, a groove penetrating in the length direction is formed in the outer wall or the inner wall of the expansion locking part, two ends of the outer wall of the expansion locking part are provided with first tapered surfaces which are gradually reduced, and the inner wall of the expansion locking part is provided with annular teeth; the main body of the extrusion piece is of a cylindrical structure, the inner diameter of the main body of the extrusion piece is smaller than the outer diameter of the expansion locking piece, and two ends of the inner wall of the extrusion piece are both provided with second conical surfaces matched with the first conical surfaces of the expansion locking piece; when the expansion locking piece is used, a reinforcing steel bar is respectively inserted into two ends of the expansion locking piece, the position of the reinforcing steel bar can be observed from an opening of the expansion locking piece, then the second conical surface of the extrusion piece is aligned and clamped with the first conical surface of the expansion locking piece, the extrusion piece is pushed inwards from the outer sides of the two extrusion pieces by adopting an installation tool, the extrusion piece extrudes the expansion locking piece, the wall thickness of the expansion locking piece becomes thinner and compresses the reinforcing steel bar, and the forming position of the reinforcing steel bar is fixed; the cylindrical wall of the expansion locking part is provided with the opening and the groove, so that when the expansion locking part is extruded inwards by the extrusion part, the cylindrical wall of the expansion locking part can uniformly enter the opening and the groove, the resistance to the extrusion part in the deformation process of the expansion locking part is reduced, and in addition, the expansion locking part of which the main body is in a C-shaped structure still has certain self-expansion force after being extruded and thinned by the extrusion part, so that the reinforcing steel bar can be internally compressed, and a tight limit relation can be formed between the expansion locking part and the extrusion part; the extruded article design is the form that the inflation retaining member can all be inserted at both ends, and the terminal surface around not distinguishing, operating personnel need not to spend time during the joint extruded article and differentiatees which end should adopt, has avoided because the incorrect extruded article that leads to of joint impels the damage of in-process inflation retaining member and extruded article, improves work efficiency.
Further, the opening and the recess of inflation retaining member set up along the central axis symmetry of inflation retaining member to do benefit to the reinforcing extruded piece propulsion in-process inflation retaining member wall homogeneity of warping.
Furthermore, the width of the opening is 0.05-0.1 times of the perimeter of the outer wall of the expansion locking piece, and the expansion locking piece can be enabled to have good expansibility and simultaneously well extrude the reinforcing steel bars.
Further, the outer diameter matched with socket with the inflation retaining member is all seted up at the inner wall both ends of extruded article, and the second toper face is located the inboard of socket, and the inflation retaining member inserts the back earlier along the socket again with the second toper face joint of extruded article, and extruded article and inflation retaining member are coaxial when guaranteeing to use mounting tool to impel the extruded article.
Further, one of them terminal surface of extruded article is provided with the annular card and follows, and another terminal surface of extruded article is provided with and blocks along matched with ring groove with the annular, offers the screw hole with ring groove intercommunication on the extruded article lateral wall, and two extruded articles are extruded to being close to or when contacting, and the ring card of one of them extruded article is gone into the ring groove of another extruded article along the card to lock through nut screw in screw hole, and then improve the position stability between two extruded articles.
Furthermore, an annular groove is formed in the inner wall between the two second conical surfaces of the extrusion part, and the annular groove can reduce the resistance of the extrusion part in the pushing process.
The utility model has the advantages that: compared with the prior art, the utility model discloses a steel bar connection mechanism has following advantage: (1) the expansion locking piece with the C-shaped main body still has certain self-expansion force after being extruded and thinned by the extrusion piece, so that the reinforcing steel bar can be internally compressed, and a close limiting relation can be formed between the expansion locking piece and the extrusion piece; (2) the extrusion piece is designed into a mode that the expansion locking piece can be inserted into both ends, the front end face and the rear end face are not distinguished, when the extrusion piece is clamped, an operator does not need to spend time to distinguish which end is adopted, the damage to the expansion locking piece and the extrusion piece in the extrusion piece propelling process caused by incorrect clamping is avoided, and the working efficiency is improved; (3) the section of thick bamboo wall through the inflation retaining member sets up the opening and sets up the recess, is favorable to when the inside extrusion inflation retaining member of extruded article, and the section of thick bamboo wall of inflation retaining member is even goes into opening and recess in, reduces inflation retaining member deformation in-process to the propulsive resistance of extruded article.
Drawings
Fig. 1 is a schematic cross-sectional view of the overall structure of embodiment 1 of the present invention;
fig. 2 is a perspective view of the overall structure of embodiment 1 of the present invention;
fig. 3 is a schematic perspective view of the expansion locking member according to embodiment 1 of the present invention;
FIG. 4 is a schematic left side view showing the structure of the expansion locking member according to embodiment 1 of the present invention;
fig. 5 is a schematic structural view of an extrusion part according to embodiment 2 of the present invention;
FIG. 6 is a block A schematic diagram of the present invention;
fig. 7 is a schematic structural view of an extrusion member according to embodiment 3 of the present invention;
wherein, 1 expansion retaining member, 101 opening, 102 groove, 103 first conical surface, 104 annular tooth, 2 extrusion member, 201 second conical surface, 202 socket, 203 annular clamping edge, 204 annular clamping groove, 205 threaded hole and 206 annular groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention.
Example 1
In the embodiment shown in fig. 1-4, the reinforcing steel bar connecting mechanism comprises an expansion locking member 1 and an extrusion member 2, wherein the rigidity of the extrusion member 2 is greater than that of the expansion locking member 1, the expansion locking member 1 is in a C-shaped cylindrical structure with a through opening 101 arranged along the length direction, a groove 102 which is through along the length direction is formed in the outer wall of the expansion locking member 1, two ends of the outer wall of the expansion locking member 1 are both provided with a first tapered surface 103 which is tapered, and the inner wall of the expansion locking member 1 is provided with an annular tooth 104; the main body of the extrusion part 2 is of a cylindrical structure, the inner diameter of the main body of the extrusion part 2 is smaller than the outer diameter of the expansion locking part 1, and two ends of the inner wall of the extrusion part 2 are both provided with second conical surfaces 201 matched with the first conical surfaces 103 of the expansion locking part 1; during the use, a reinforcing bar is inserted respectively at the both ends of inflation retaining member 1, can observe the position of reinforcing bar from the opening 101 department of inflation retaining member 1, then aim at the joint with the second toper face 201 of extruded article 2 and the first toper face 103 of inflation retaining member 1, adopt mounting tool to inwards impel extruded article 2 from the outside of two extruded article 2, extruded article 2 forms the extrusion to inflation retaining member 1, the wall thickness attenuation of inflation retaining member 1 and compress tightly the reinforcing bar, form the rigidity to the reinforcing bar.
In this embodiment, the opening 101 and the groove 102 of the expansion locking member 1 are symmetrically arranged along the central axis of the expansion locking member 1, so as to facilitate the enhancement of the uniformity of the deformation of the cylinder wall of the expansion locking member 1 in the pushing process of the extrusion member 2.
In this embodiment, the width of the opening 101 is 0.082 times of the perimeter of the outer wall of the expansion locking member 1, so as to ensure that the expansion locking member 1 has good expansibility and simultaneously forms good extrusion on the steel bar.
In this embodiment, the outer diameter matched with socket 202 with inflation retaining member 1 has all been seted up at the inner wall both ends of extruded article 2, and second toper face 201 is located the inboard of socket 202, and inflation retaining member 1 inserts the back along socket 202 earlier and then with the second toper face 201 joint of extruded article 2, and extruded article 2 is coaxial with inflation retaining member 1 when guaranteeing to use mounting tool to impel extruded article 2.
The working principle is as follows: the utility model discloses a steel bar connecting mechanism, set up opening 101 and set up recess 102 through the section of thick bamboo wall of inflation retaining member 1, be favorable to when extrusion article 2 extrudees inflation retaining member 1 inwards, the section of thick bamboo wall of inflation retaining member 1 is even goes into opening 101 and recess 102, reduce the resistance that inflation retaining member 1 warp the in-process to extrusion article 2 propulsion, the inflation retaining member 1 that the main part is "C" type structure still possesses certain self-expansive force after being extruded the attenuation by extrusion article 2 in addition, not only can compress tightly the reinforcing bar inwards, and can form inseparable spacing relation with extrusion article 2 outwards; the design of extruded article 2 is both ends homoenergetic and inserts the form of inflation retaining member 1, and the terminal surface around not distinguishing, operating personnel need not to spend time during joint extruded article 2 and differentiatees which end should be adopted, has avoided because the incorrect extruded article 2 that leads to of joint impels the damage of in-process inflation retaining member 1 and extruded article 2, improves work efficiency.
Example 2
Example 2 is essentially the same set up as example 1, with the difference that: as shown in fig. 5 and 6, in this embodiment, one end surface of the extrusion member 2 is provided with an annular clamping edge 203, the other end surface of the extrusion member 2 is provided with an annular clamping groove 204 matched with the annular clamping edge 203, the side wall of the extrusion member 2 is provided with a threaded hole 205 communicated with the annular clamping groove 204, when the two extrusion members 2 are extruded to be close to or in contact with each other, the annular clamping edge 203 of one extrusion member 2 is clamped into the annular clamping groove 204 of the other extrusion member 2 and is screwed into the threaded hole 205 through a nut to be locked, so that the position stability between the two extrusion members 2 is improved.
Example 3
The setup of example 3 is essentially the same as in example 1, with the following differences: as shown in fig. 7, in the present embodiment, an annular groove 206 is formed on the inner wall between the two second tapered surfaces 201 of the extrusion member 2, and the annular groove 206 can reduce the resistance received by the extrusion member 2 in the pushing process.
The above embodiments are only specific cases of the present invention, and the protection scope of the present invention includes but is not limited to the forms and styles of the above embodiments, and any suitable changes or modifications made thereto by those skilled in the art according to the claims of the present invention shall fall within the protection scope of the present invention.
Claims (6)
1. The utility model provides a reinforcing bar coupling mechanism which characterized in that: the expansion locking part is of a C-shaped cylindrical structure with an opening in the length direction, a groove which is communicated in the length direction is formed in the outer wall or the inner wall of the expansion locking part, first tapered conical surfaces are arranged at two ends of the outer wall of the expansion locking part, and annular teeth are arranged on the inner wall of the expansion locking part; the main part of extruded article is cylinder type structure, and the internal diameter of extruded article main part is less than the external diameter of inflation retaining member, and the second toper face with inflation retaining member's first toper face matched with is all seted up at the inner wall both ends of extruded article.
2. A reinforcing bar connecting mechanism according to claim 1, wherein: the opening and the groove of the expansion locking member are symmetrically arranged along the central axis of the expansion locking member.
3. A reinforcing bar connecting mechanism according to claim 1, wherein: the width of the opening is 0.05-0.1 times of the perimeter of the outer wall of the expansion locking piece.
4. A reinforcing bar connecting mechanism according to claim 1, wherein: the inner wall both ends of extruded piece all offer with the outer diameter matched with socket of inflation retaining member, the second toper face is located the inboard of socket.
5. A reinforcing bar connecting mechanism according to claim 4, wherein: one of them terminal surface of extruded piece is provided with annular card edge, and another terminal surface of extruded piece is provided with and blocks along matched with ring groove, offers the screw hole with ring groove intercommunication on the extruded piece lateral wall.
6. A reinforcing bar connecting mechanism according to any one of claims 1 to 5, wherein: an annular groove is formed in the inner wall between the two second conical surfaces of the extrusion part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020299491.5U CN211949225U (en) | 2020-03-12 | 2020-03-12 | Steel bar connecting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020299491.5U CN211949225U (en) | 2020-03-12 | 2020-03-12 | Steel bar connecting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211949225U true CN211949225U (en) | 2020-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020299491.5U Active CN211949225U (en) | 2020-03-12 | 2020-03-12 | Steel bar connecting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211949225U (en) |
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2020
- 2020-03-12 CN CN202020299491.5U patent/CN211949225U/en active Active
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