Fault-tolerant connection mechanism

Abstract

The utility model belongs to the technical field of constructional engineering, and discloses a fault-tolerant connecting mechanism which comprises a deviation rectifying part, the deviation rectifying part comprises an integrated bridging bolt, an internal thread A is arranged in the integrated bridging bolt, and an external thread A is arranged on the surface of the integrated bridging bolt; according to the utility model, through the matching of structures such as the integrated bridging bolt and the stud, the problem that the centroids of the reinforcing steel bars are not collinear and cannot be connected is solved, when the prefabricated part adopts the reserved integrated sleeve A as a connecting piece, firstly, the integrated bridging bolt is connected with the integrated sleeve A, and then the integrated bridging bolt is connected with the stud; the two integrated bridging bolts are arranged at the two ends of the upper prefabricated part and the lower prefabricated part, the angle between the two integrated bridging bolts is adjusted through rotation, the integrated sleeves A in the upper prefabricated part and the lower prefabricated part are adjusted till the circle centers are aligned, and at the moment, the stud is arranged between the two prefabricated parts needing to be connected; and the double-end bolt rotates under the action of pressure and reaches a designed position.

Description

Technical Field

[0001] The utility model belongs to the technical field of construction engineering, in particular to a fault-tolerant connection mechanism. Background Art

[0002] Reinforced concrete structures are currently the most important form of building structure in my country. Under existing construction technology and conditions, rebar positioning errors are unavoidable in both prefabricated and cast-in-place buildings. In cast-in-place structures, rebar positioning errors have minimal impact on structural stress and construction, but in prefabricated structures, rebar positioning errors have become a bottleneck restricting the construction of prefabricated components. When the centroids of some of the rebar in two prefabricated components are not collinear, it may prevent the rebar in the two prefabricated components from connecting. For prefabricated buildings to further develop, the technical bottleneck of rebar connection in prefabricated reinforced concrete structures must be resolved. Only then can prefabricated reinforced concrete buildings truly achieve significant development.

[0003] Modern concrete prefabricated building steel bar connection technology mainly adopts sleeve grouting connection technology, which is a method of inserting steel bars into sleeves, then pouring high-strength concrete mortar into the sleeves, and connecting the steel bars together through the bonding force of high-strength mortar. This steel bar construction process is the most common practice in existing processes, but there are many problems: 1. The grouting material in the sleeve is prone to uneven grouting material, slurry precipitation, slurry port blockage and other problems; 2. The sleeve structure is complex and the construction is difficult; 3. When the steel bars are densely arranged, the sleeve connection cannot be used due to its large shape and the influence of the construction process, and the use scenario is limited; 4. Mortar is a brittle material and is difficult to install on the ground Under the action of seismic reciprocating loads, the bonding strength and reliability of the joints have great uncertainty; 5. When there is a large error in the positioning of the steel bars and sleeves of the two prefabricated components to be connected, some steel bars will not be able to be inserted into the sleeves, and the component installation will fail; what is more serious is that some people with weak quality awareness in the construction unit will cut off the steel bars that cannot be inserted into the sleeves in order to speed up the progress and control costs, resulting in the steel bars not being connected, causing serious quality problems, and due to its hidden nature, it is impossible to carry out effective monitoring and inspection, which can easily lead to major safety hazards. Since the construction method of sleeve grouting materials has many defects, it greatly limits the promotion and application of reinforced concrete prefabricated buildings. Utility Model Content

[0004] The name of the utility model is a fault-tolerant connection mechanism. The utility model can not only perfectly solve the problem that the steel bars cannot be connected because their centroids are not collinear, but also ensure the safety, reliability and durability of the connection, and can ensure the safety and reliability of the connection in various usage environments and under reciprocating loads.

[0005] To achieve the above object, the present invention provides the following technical solution: a fault-tolerant connection mechanism, comprising a correction member, a connection member provided on the surface of the correction member, a fixing member provided on the connection member, a stud bolt provided inside the correction member, and an assembly member provided on the fixing member;

[0006] The deviation-correcting component includes an integrated bridging bolt, an internal thread A is provided inside the integrated bridging bolt, an external thread A is provided on the surface of the integrated bridging bolt, and a scale is provided on the deviation-correcting component.

[0007] Preferably, the deviation-correcting member comprises two split bridging bolts, and the size of the two split bridging bolts after being combined is the same as that of the integrated bridging bolt.

[0008] Preferably, the integrated bridging bolt and the split bridging bolt are both hollow screws, the internal thread A and the external thread A have the same pitch and the same vertical height, and the centroids of the thread A and the external thread A do not overlap.

[0009] Preferably, the connecting member includes an integral sleeve A and an integral sleeve B, the interior of the integral sleeve A is provided with an internal thread B and an internal thread C respectively, and the inner surface of the integral sleeve B is provided with an internal thread C.

[0010] Preferably, the connecting member comprises a split sleeve, an inner surface of the split sleeve is provided with an internal thread C, an outer surface of the split sleeve is provided with two external threads B, and nuts are respectively threadedly connected to the two external threads B.

[0011] Preferably, the two external threads B are respectively located at the two ends of the split sleeve, and the size of the internal thread C is larger than that of the internal thread B.

[0012] Preferably, the size of the internal thread C is compatible with the size of the external thread A, the internal thread C and the external thread A are threadedly connected, and the integrated bridging bolt and the split bridging bolt are both located inside the split sleeve.

[0013] Preferably, the fixing member comprises a steel bar, one end of the steel bar is provided with a connecting thread, and both ends of the stud bolt are provided with two connecting threads in opposite directions.

[0014] Preferably, the sizes of the connecting threads are adapted to the internal threads A and B, the connecting threads are respectively threadedly connected to the internal threads A and B, and the stud bolts are located between the integral bridging bolts.

[0015] Preferably, the assembly includes two prefabricated components, which are chain-connected and then poured with concrete and adhesive. Steel bars are fixedly connected to the interior of the prefabricated components, and one end of the steel bar close to the connecting thread passes through the interior of the prefabricated components and extends between the two prefabricated components. The prefabricated components are fixedly connected to the integral sleeve A, and the stud bolt is located between the two integral sleeves A.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] The utility model solves the problem that the centroids of the steel bars are not collinear and cannot be connected by setting the coordination of the structures such as the integrated bridging bolt and the stud bolt. When the prefabricated component adopts the reserved integrated sleeve A as the connecting part, the integrated bridging bolt is first used to connect with the integrated sleeve A, and the angle between the two integrated bridging bolts is adjusted by rotation, and the integrated sleeve A inside the upper and lower prefabricated components is adjusted to align the center of the circle. At this time, the stud bolt is placed between the two prefabricated components to be connected. Since the screw directions of the integrated bridging bolts and the stud bolts connected at both ends are in opposite directions, the stud bolt rotates under pressure and reaches the designed position, connecting the two prefabricated components. Finally, the adhesive is used to perform secondary pouring on the middle part without concrete, connecting the two prefabricated components into a whole. The secondary pouring layer can play the role of transmitting pressure, and can also play the role of fixing the stud bolt, preventing the stud bolt from rotating and pulling off under the action of tension to cause connection damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structural relationship between the integrated sleeve A and the steel bar of the utility model;

[0020] Figure 3 This is a schematic diagram of the structural relationship between the split sleeve and the nut of the utility model;

[0021] Figure 4 This is a schematic cross-sectional view of the integrated sleeve A of the present invention;

[0022] Figure 5 This is a schematic diagram of the structural relationship between the integrated bridging bolt and the integrated sleeve B of the utility model;

[0023] Figure 6 This is a schematic diagram of the structural relationship between the split sleeve and the deviation-correcting component of the utility model;

[0024] Figure 7 This is a schematic diagram of the structural relationship between the stud bolt and the integrated bridging bolt of the utility model;

[0025] Figure 8 This is a schematic top view of the structure of the integrated bridging bolt and the integrated sleeve B of the utility model;

[0026] Figure 9 This is a schematic diagram of the integrated bridging bolt alignment structure of the utility model;

[0027] Figure 10 This is a schematic diagram of the scale structure of the integrated sleeve B of the utility model.

[0028] In the figure: 1. Correction part; 11. Integrated bridging bolt; 111. Internal thread A; 112. External thread A; 12. Split bridging bolt; 2. Connecting part; 21. Integrated sleeve A; 211. Internal thread B; 212. Internal thread C; 22. Integrated sleeve B; 23. Split sleeve; 231. External thread B; 232. Nut; 3. Fixing part; 31. Connecting thread; 32. Rebar; 4. Stud bolt; 5. Assembly part; 51. Prefabricated component; 52. Concrete; 53. Adhesive. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Example 1

[0031] like Figure 1 、 Figure 3 and Figure 6 As shown, the present invention provides a fault-tolerant connection mechanism, comprising a correction member 1, a connection member 2 is provided on the surface of the correction member 1, a fixing member 3 is provided on the connection member 2, a stud bolt 4 is provided inside the correction member 1, and an assembly member 5 is provided on the fixing member 3;

[0032] The deviation-correcting component 1 includes an integrated bridging bolt 11 , an internal thread A111 is provided inside the integrated bridging bolt 11 , and an external thread A112 is provided on the surface of the integrated bridging bolt 11 . A scale is provided on the deviation-correcting component 1 .

[0033] The correcting part 1 includes two split bridging bolts 12. The combined size of the two split bridging bolts 12 is the same as that of the integrated bridging bolt 11. The integrated bridging bolt 11 and the split bridging bolt 12 are both hollow screws. The pitch of the internal thread A111 and the external thread A112 are the same and the vertical height is consistent. The centroids of the internal thread A111 and the external thread A112 do not coincide. The correcting part 1 needs to mark the angles on the top and side. The scale at the thinnest position is 0, and the scale at the thickest position is 180. The scale in the middle is 0 to 180.

[0034] The above solution is adopted: by setting the coordination of structures such as the integrated bridging bolt 11 and the stud bolt 4, the problem that the centroids of the steel bars 32 are not collinear and cannot be connected is solved. When the prefabricated component 51 adopts the reserved integrated sleeve A21 as a connecting part, the integrated bridging bolt 11 is first used to connect with the integrated sleeve A21, and the angle between the two integrated bridging bolts 11 is adjusted by rotation, and the integrated sleeves A21 inside the upper and lower prefabricated components 51 are adjusted to align the center of the circle. At this time, the stud bolt 4 is placed between the two prefabricated components 51 that need to be connected. Since the screw directions of the integrated bridging bolts 11 and the stud bolt 4 connected at both ends are in opposite directions, the stud bolt 4 rotates under pressure and reaches the designed position, connecting the two prefabricated components 51.

[0035] like Figures 3 to 7 As shown, the connecting member 2 includes an integral sleeve A21 and an integral sleeve B22. The interior of the integral sleeve A21 is respectively provided with an internal thread B211 and an internal thread C212. The inner surface of the integral sleeve B22 is provided with an internal thread C212. The connecting member 2 includes a split sleeve 23. The inner surface of the split sleeve 23 is provided with an internal thread C212. The outer surface of the split sleeve 23 is provided with two external threads B231. Nuts 232 are respectively threadedly connected to the two external threads B231.

[0036] The two external threads B231 are respectively located at the two ends of the split sleeve 23. The size of the internal thread C212 is larger than the size of the internal thread B211. The size of the internal thread C212 is compatible with the size of the external thread A112. The internal thread C212 and the external thread A112 are threadedly connected. The integrated bridging bolt 11 and the split bridging bolt 12 are both located inside the split sleeve 23. The connecting part 2 can be an integrated sleeve A21 or a split sleeve 23. The directions of the two external threads B231 can be the same or opposite. The shape of the connecting part 2 can be circular or a regular polygon. The two ends of the split sleeve 23 can be connected by fasteners. The fasteners can be nuts 232 or other forms.

[0037] The assembly part 5 includes two prefabricated components 51 , with concrete 52 disposed between the two prefabricated components 51 . A steel bar 32 is fixedly connected to the interior of the prefabricated component 51 , and one end of the steel bar 32 close to the connecting thread 31 passes through the interior of the prefabricated component 51 and extends between the two prefabricated components 51 .

[0038] Adopting the above scheme: the diameters of the connected steel bars 32 can be the same or different. When the diameters of the connected steel bars 32 are different, on the side with the smaller diameter, the steel bars 32 can be connected with an integral bridging bolt 11 and an integral sleeve B22 with a larger outer diameter, or two integral bridging bolts 11 with different outer diameters can be used in combination.

[0039] Example 2

[0040] like Figures 2 to 9 As shown, the fixing part 3 includes a steel bar 32, one end of the steel bar 32 is provided with a connecting thread 31, and the two ends of the stud bolt 4 are respectively provided with two connecting threads 31 in opposite directions, and the sizes of the connecting threads 31 are adapted to the internal thread A111 and the internal thread B211. The connecting threads 31 are respectively threadedly connected to the internal thread A111 and the internal thread B211, and the stud bolt 4 is located between the integrated bridging bolts 11.

[0041] The assembly part 5 includes two prefabricated components 51, which are chain-connected and then poured with adhesive 53. The interior of the prefabricated component 51 is fixedly connected with steel bars 32. The prefabricated component 51 is fixedly connected to the integral sleeve A21, and the stud bolt 4 is located between the two integral sleeves A21.

[0042] The above solution is adopted: the adhesive 53 is used to perform secondary pouring on the middle part without concrete, and the two prefabricated components 51 are connected into a whole. The secondary pouring layer can play a role in transmitting pressure and also play a role in fixing the stud bolts 4 to prevent the stud bolts 4 from rotating and pulling off under the action of tension, causing damage to the connection.

[0043] The working principle and use process of the utility model: The utility model can solve the mechanical connection of the assembled components through two solutions. One is to reserve steel bars 32 inside the prefabricated component 51, such as Figure 1 As shown, the reserved steel bars 32 are connected by using a correcting piece 1 and a sleeve, and then a secondary pouring of concrete 52 is performed. The second method is to reserve an integral sleeve A21 inside the prefabricated component 51, connect the integral sleeve A21 with a correcting piece 1 and a stud bolt 4, and then pour and bond the integral sleeve A21 with an adhesive 53 to form a whole.

[0044] When the two steel bars 32 inside the prefabricated component 51 are not aligned, Figure 1As shown, it is impossible to use the connector 2 for direct connection. At this time, first use a caliper-like tool to measure the maximum external dimension Lmax of the two connected steel bars. In the second step, calculate the angle α. The eccentric distance L of the upper and lower steel bars is L=Lmax-R2*2. The eccentric distances L, R1, and R2 are known. According to the trigonometric function calculation formula, L=2*(R1-R2)*SIN(a / 2), the angle α is solved. In the third step, align the position of the scale 0 of the integrated bridging bolt 11 with the α angle of the integrated bridging bolt 11, and the upper and lower alignment of the two integrated bridging bolts 11 can be completed, so that the internal threads A111 on the two integrated bridging bolts 11 are respectively aligned with the connecting threads 31 on the two steel bars 32, and are threadedly connected thereto, and the outer diameters of the two integrated bridging bolts 11 are in a concentric position, and then the external threads A112 on the two integrated bridging bolts 11 are aligned with one The internal thread C212 inside the body sleeve B22 is aligned, and the two ends of the integrated sleeve B22 are respectively threadedly connected with the two integrated bridging bolts 11. At this time, the direction of the internal thread C212 inside the integrated sleeve B22 is consistent with the thread direction of the external thread A112 on the integrated bridging bolt 11 and the connecting thread 31 on the steel bar 32; the diameters of the connected steel bars 32 can be the same or different. When the diameters of the connected steel bars 32 are different, on the small diameter side, the steel bar 32 can use an integrated bridging bolt 11 with a larger outer diameter, or a combination of two integrated bridging bolts 11 with different outer diameters; when the connector 2 uses a split sleeve 23, the connecting thread 31 of the steel bar 32, the internal thread A111 and external thread A112 of the integrated bridging bolt 11, and the internal thread C212 of the split sleeve 23 can all be replaced by parallel wires with parallel layers;

[0045] When the two integral sleeves A21 inside the prefabricated component 51 are not aligned, Figure 2 As shown, if direct connection using stud bolts 4 is not possible, the two integral bridging bolts 11 can be threadedly connected to the two integral sleeves A21, and the inner diameters of the two can be adjusted to be concentric. Then, the stud bolts 4 can be threadedly connected to the two integral bridging bolts 11. When the stud bolts 4 are used, the two connecting threads 31 on the stud bolts 4 are oriented in opposite directions and in the same direction as the internal threads C212 on the two integral sleeves A21.

[0046] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0047] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fault-tolerant connection mechanism, comprising a deviation-correcting member (1), characterized in that: A connecting piece (2) is provided on the surface of the deviation-correcting piece (1), a fixing piece (3) is provided on the connecting piece (2), a stud bolt (4) is provided inside the deviation-correcting piece (1), and an assembly piece (5) is provided on the fixing piece (3); The deviation-correcting member (1) comprises an integral bridging bolt (11), an internal thread A (111) is provided on the interior of the integral bridging bolt (11), an external thread A (112) is provided on the surface of the integral bridging bolt (11), and a scale is provided on the deviation-correcting member (1).

2. The fault-tolerant connection mechanism according to claim 1, characterized in that: The deviation-correcting member (1) comprises two split bridging bolts (12), and the size of the two split bridging bolts (12) after being combined is the same as that of the integrated bridging bolt (11).

3. The fault-tolerant connection mechanism according to claim 1, characterized in that: The integrated bridging bolt (11) and the split bridging bolt (12) are both hollow screws, the internal thread A (111) and the external thread A (112) have the same pitch and the same vertical height, and the centroids of the internal thread A (111) and the external thread A (112) do not overlap.

4. The fault-tolerant connection mechanism according to claim 2, characterized in that: The connecting member (2) comprises an integral sleeve A (21) and an integral sleeve B (22), wherein the interior of the integral sleeve A (21) is provided with an internal thread B (211) and an internal thread C (212), respectively, and the inner surface of the integral sleeve B (22) is provided with an internal thread C (212).

5. The fault-tolerant connection mechanism according to claim 4, characterized in that: The connecting member (2) comprises a split sleeve (23), the inner surface of the split sleeve (23) is provided with an internal thread C (212), the outer surface of the split sleeve (23) is provided with two external threads B (231), and the two external threads B (231) are respectively threadedly connected with nuts (232).

6. The fault-tolerant connection mechanism according to claim 5, characterized in that: The two external threads B (231) are respectively located at the two ends of the split sleeve (23), and the size of the internal thread C (212) is larger than the size of the internal thread B (211).

7. The fault-tolerant connection mechanism according to claim 6, characterized in that: The size of the internal thread C (212) is compatible with the size of the external thread A (112), and the internal thread C (212) and the external thread A (112) are threadedly connected. The integrated bridging bolt (11) and the split bridging bolt (12) are both located inside the split sleeve (23).

8. The fault-tolerant connection mechanism according to claim 5, characterized in that: The fixing member (3) comprises a steel bar (32), one end of which is provided with a connecting thread (31), and both ends of the stud bolt (4) are provided with two connecting threads (31) in opposite directions.

9. The fault-tolerant connection mechanism according to claim 8, characterized in that: The dimensions of the connecting threads (31) are compatible with the internal threads A (111) and the internal threads B (211), and the connecting threads (31) are respectively threadedly connected to the internal threads A (111) and the internal threads B (211), and the stud bolts (4) are located between the integral bridging bolts (11).

10. The fault-tolerant connection mechanism according to claim 2, characterized in that: The assembly part (5) includes two prefabricated components (51), and the two prefabricated components (51) are respectively chain-connected and then poured with concrete (52) and adhesive (53). The interior of the prefabricated component (51) is fixedly connected with a steel bar (32), and one end of the steel bar (32) close to the connecting thread (31) passes through the interior of the prefabricated component (51) and extends between the two prefabricated components (51). The prefabricated component (51) is fixedly connected to the integral sleeve A (21), and the stud bolt (4) is located between the two integral sleeves A (21).

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