Fault-tolerant connection mechanism

Abstract

The invention 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 formed in the integrated bridging bolt, and an external thread A is formed in the surface of the integrated bridging bolt; through cooperation of structures such as the integrated bridging bolts and the double-end bolts, the situation that steel bars cannot be connected due to non-collinear centroids is solved, when a prefabricated part adopts a reserved integrated sleeve A as a connecting piece, the integrated bridging bolts are firstly adopted to be connected with the integrated sleeve A, and the angle between the two integrated bridging bolts is adjusted through rotation, so that the integrated bridging bolts are connected with the integrated sleeve A; the integrated sleeves A in the upper prefabricated part and the lower prefabricated part are adjusted until the circle centers are aligned, at the moment, the stud is arranged between the two prefabricated parts needing to be connected, and due to the fact that the two ends of the integrated bridging bolt connected with the stud are opposite in screw direction, the stud rotates under the action of pressure and reaches the design position.

Description

Technical Field

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

[0002] Carbon emission reduction in the construction engineering field is also being vigorously promoted. The development of prefabricated buildings is undoubtedly an important means of emission reduction and the future development direction of modern architecture. In recent years, the country has successively issued a number of policies to support the development of prefabricated buildings and vigorously promote their industrialization and scale. With the continuous advancement of technology and the continuous support of policies, prefabricated buildings will become the mainstream direction of the construction industry.

[0003] At present, reinforced concrete structure is the most important form of building structure in my country. Under the existing construction technology and conditions, whether it is prefabricated building or cast-in-place building, the steel bar positioning error cannot be avoided. In cast-in-place structure, the steel bar positioning error has little effect on the structural force and construction, but in prefabricated structure, the steel bar positioning error has become a bottleneck problem that restricts prefabricated components. When the centroids of some steel bars of two prefabricated components are not collinear, it may cause the steel bars of the two prefabricated components to be unable to connect; if prefabricated buildings are to develop further, the technical bottleneck of steel bar connection of prefabricated reinforced concrete structures must be solved, so that prefabricated reinforced concrete buildings can usher in real great development.

[0004] 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 connect on the ground Under the action of earthquake reciprocating load, the bonding strength and reliability of the joint 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 meet the progress and control the cost, resulting in the steel bars not being connected, causing serious quality problems, and due to its concealment, it is impossible to carry out effective monitoring and inspection, which is easy to cause major safety hazards. The construction method of sleeve grouting material has many defects, which greatly limits the promotion and application of reinforced concrete prefabricated buildings. Summary of the invention

[0005] The name of the present invention is a fault-tolerant connection mechanism. The present invention can not only perfectly solve the problem that the centroids of the steel bars cannot be connected because they are not colinear, 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.

[0006] To achieve the above object, the present invention provides the following technical solution: a fault-tolerant connection mechanism, comprising a deviation-correcting member, a connection member is arranged on the surface of the deviation-correcting member, a fixing member is arranged on the connection member, a stud bolt is arranged inside the deviation-correcting member, and an assembly member is arranged on the fixing member;

[0007] The deviation-correcting member comprises an integral bridging bolt, an internal thread A is provided inside the integral bridging bolt, an external thread A is provided on the surface of the integral bridging bolt, and a scale is provided on the deviation-correcting member.

[0008] 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.

[0009] 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.

[0010] Preferably, the connecting member comprises 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.

[0011] 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.

[0012] Preferably, the two external threads B are respectively located at two ends of the split sleeve, and the size of the internal thread C is larger than that of the internal thread B.

[0013] 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.

[0014] Preferably, the fixing member comprises a steel bar, one end of which is provided with a connecting thread, and both ends of the stud bolt are provided with two connecting threads in opposite directions.

[0015] Preferably, the sizes of the connecting threads are compatible with the internal threads A and B, the connecting threads are threadedly connected to the internal threads A and B respectively, and the stud bolts are located between the integrated bridging bolts.

[0016] Preferably, the assembly includes two prefabricated components, which are chain-connected and then poured with concrete and adhesive. The prefabricated components are fixedly connected with steel bars inside, and one end of the steel bars close to the connecting thread penetrates 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.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention solves the problem that the centroids of the steel bars are not colinear and cannot be connected by arranging the cooperation of structures such as the integrated bridging bolts and the stud bolts. When the prefabricated component adopts the reserved integrated sleeve A as the connecting piece, 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 to connect the two prefabricated components. Finally, the adhesive is used to perform secondary pouring on the middle part without concrete to connect the two prefabricated components into a whole. The secondary pouring layer can play a role in transmitting pressure and can also play a role in fixing the stud bolts to prevent the stud bolts from rotating and pulling off under the action of tension to cause connection damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the structural relationship between the integrated sleeve A and the steel bar of the present invention;

[0021] Figure 3 It is a schematic diagram of the structural relationship between the split sleeve and the nut of the present invention;

[0022] Figure 4 It is a schematic cross-sectional structure diagram of the integrated sleeve A of the present invention;

[0023] Figure 5 This is a schematic diagram of the structural relationship between the integrated bridging bolt and the integrated sleeve B of the present invention;

[0024] Figure 6 It is a schematic diagram of the structural relationship between the split sleeve and the deviation-correcting member of the present invention;

[0025] Figure 7 It is a schematic diagram of the structural relationship between the stud bolt and the integrated bridging bolt of the present invention;

[0026] Figure 8 It is a schematic diagram of the top view of the structure of the integrated bridging bolt and the integrated sleeve B of the present invention;

[0027] Fig. 9 This is a schematic diagram of the integrated bridging bolt alignment structure of the present invention;

[0028] Fig.10 It is a schematic diagram of the scale structure of the integrated sleeve B of the present invention.

[0029] In the figure: 1. Correction piece; 11. Integrated bridging bolt; 111. Internal thread A; 112. External thread A; 12. Split bridging bolt; 2. Connector; 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 piece; 31. Connecting thread; 32. Rebar; 4. Stud bolt; 5. Assembly part; 51. Prefabricated component; 52. Concrete; 53. Adhesive. DETAILED DESCRIPTION

[0030] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0031] Example 1

[0032] like Figure 1 , Figure 3 and Figure 6 As shown, the present invention provides a fault-tolerant connection mechanism, including a deviation-correcting member 1, a connection member 2 is provided on the surface of the deviation-correcting member 1, a fixing member 3 is provided on the connection member 2, a stud bolt 4 is provided inside the deviation-correcting member 1, and an assembly member 5 is provided on the fixing member 3;

[0033] The deviation-correcting component 1 comprises an integral bridging bolt 11 , an internal thread A111 is provided inside the integral bridging bolt 11 , an external thread A112 is provided on the surface of the integral bridging bolt 11 , and a scale is provided on the deviation-correcting component 1 .

[0034] 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, with a scale from 0 to 180 in the middle.

[0035] The above scheme is adopted: by setting the cooperation 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 colinear and cannot be connected is solved. When the prefabricated component 51 adopts the reserved integrated sleeve A21 as the 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 sleeve A21 inside the upper and lower prefabricated components 51 is 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 bolt 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 to connect the two prefabricated components 51.

[0036] 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.

[0037] 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 piece 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 piece 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.

[0038] The assembly 5 includes two prefabricated components 51 , concrete 52 is arranged between the two prefabricated components 51 , and steel bars 32 are fixedly connected inside the prefabricated components 51 . One end of the steel bars 32 close to the connecting thread 31 passes through the interior of the prefabricated components 51 and extends between the two prefabricated components 51 .

[0039] By 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.

[0040] Example 2

[0041] like Figures 2 to 9 As shown, the fixing member 3 includes a steel bar 32, one end of which is provided with a connecting thread 31, and both 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 both adapted to the internal thread A111 and the internal thread B211, and the connecting threads 31 are respectively threadedly connected with the internal thread A111 and the internal thread B211, and the stud bolt 4 is located between the integrated bridging bolts 11.

[0042] The assembly 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.

[0043] The above scheme 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 the connection to be damaged.

[0044] Working principle and use process of the present invention: The present invention can solve the mechanical connection of 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 the correcting piece 1 and the sleeve, and then the concrete 52 is used for secondary pouring. The second method is to reserve an integral sleeve A21 inside the prefabricated component 51, connect the integral sleeve A21 by using the correcting piece 1 and the stud bolt 4, and then pour the adhesive 53 to bond them into a whole;

[0045] 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 outer 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 where the scale of the integrated bridging bolt 11 is 0 with the angle α of the integrated bridging bolt 11, so that 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 side of the small diameter, the steel bar 32 can be used with 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 the 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;

[0046] When the two integral sleeves A21 inside the prefabricated component 51 are not aligned, Figure 2 As shown, it is impossible to use the stud bolt 4 for direct connection. In this case, the two integral bridge bolts 11 can be respectively connected to the two integral sleeves A21 through threads, and the inner diameters of the two can be adjusted to be concentric, and then the two integral bridge bolts 11 can be respectively connected through threads through the stud bolt 4. When the stud bolt 4 solution is used, the two connecting threads 31 on the stud bolt 4 are in opposite directions and are respectively in the same direction as the internal threads C212 on the two integral sleeves A21.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that 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 integrated bridging bolt (11), the interior of the integrated bridging bolt (11) is provided with an internal thread A (111), the surface of the integrated bridging bolt (11) is provided with an external thread A (112), and the deviation-correcting member (1) is provided with a scale.

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 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 nuts (232) are respectively threadedly connected to the two external threads B (231).

6. The fault-tolerant connection mechanism according to claim 5, characterized in that: The two external threads B (231) are respectively located at 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), the internal thread C (212) and the external thread A (112) are threadedly connected, and 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 thread (31) are compatible with the internal thread A (111) and the internal thread B (211), and the connecting thread (31) is threadedly connected to the internal thread A (111) and the internal thread B (211), respectively, and the stud bolt (4) is located between the integral bridging bolts (11).

10. The fault-tolerant connection mechanism according to claim 2, characterized in that: The assembly part (5) comprises two prefabricated components (51), 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), 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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