Connecting member and prefabricated assembly

Abstract

The present invention discloses a connecting member and a prefabricated assembly, wherein the connecting member is used to connect two rods, and includes two connecting parts respectively connected to the two rods, and the two connecting parts can also be connected to each other; the two connecting parts each include a locking member and two connecting members, the locking member is installed on one of the two connecting members, and can be tightly pressed against the other of the two connecting members, so that the two connecting members are in close contact and do not separate, and at least one of the two parts of the two connecting members in contact is a spherical surface, so that the two connecting members can rotate relative to the contact point between the two. With this structure, the two connecting members of each connecting part adopt spherical matching, so that the two connecting members can rotate relative to each other, and can adapt to the deflection connection of two rods with different axes; and the locking member can lock the two connecting members of the same connecting part, so that the two connecting members of the same connecting part are in close contact, which is beneficial to improve the tensile and compressive properties.

Description

Technical Field

[0001] The invention relates to the technical field of building accessories, and in particular to a connecting member and a prefabricated assembly. Background Art

[0002] Prefabricated walls in prefabricated buildings usually use transverse and longitudinal steel bars to form a skeleton and are then pre-cast in the factory. When the prefabricated walls are installed at the construction site, the transverse and longitudinal steel bars of the two adjacent prefabricated walls need to be connected respectively. However, due to construction errors, bending or bending of steel bars caused by collisions, etc., the corresponding transverse (longitudinal) steel bars between the two adjacent prefabricated walls cannot be guaranteed to be completely coaxial, which will result in the transverse (longitudinal) steel bars being unable to be connected.

[0003] Therefore, how to provide a solution to overcome the above-mentioned defects is still a technical problem to be solved urgently by those skilled in the art. Summary of the invention

[0004] The object of the present invention is to provide a connecting member and a prefabricated assembly, wherein the connecting member can adapt to the deflection connection of two rods with different axes and has good tensile and compressive resistance.

[0005] In order to solve the above technical problems, the present invention provides a connecting component for connecting two rods, including two connecting parts respectively connected to the two rods, and the two connecting parts can also be connected to each other; the two connecting parts each include a locking piece and two connecting pieces, the locking piece is installed on one of the two connecting pieces, and can be tightly pressed against the other of the two connecting pieces, so that the two connecting pieces are in close contact and do not separate, and at least one of the two parts where the two connecting pieces are in contact is a spherical surface, so that the two connecting pieces can rotate relative to the contact point between the two.

[0006] With this structure, a spherical fit is adopted between the two connecting parts of each connecting part, so that the two connecting parts can rotate relative to the contact point between them, thereby adapting to the deflection connection of two rods with different axes; moreover, the locking part can lock the two connecting parts of the same connecting part so that the two connecting parts of the same connecting part can be in close contact, which is beneficial to improving the tensile and compressive properties.

[0007] Optionally, among the two connecting parts, the two connecting pieces of at least one connecting part are plugged into each other, and the inner wall of the connecting piece located on the outer side of the two connecting pieces that are plugged into each other is provided with a first necking portion, and the outer wall of the connecting piece located on the inner side is provided with a large head, and the large head is axially abutted against the first necking portion.

[0008] Optionally, the end of the outer connecting member abutting against the large head is further provided with a first conical expansion opening, and a first avoidance gap is formed between the first conical expansion opening and the inner connecting member.

[0009] Optionally, the locking member sleeve is installed on the portion of the inner connector that extends out of the outer connector and abuts against the outer connector; or, the locking member can be installed in the outer connector along the insertion direction of the inner connector and abut against the inner connector.

[0010] Optionally, among the two connecting parts, the two connecting pieces of at least one connecting part are in contact with each other at the ends, and one of the two contacting ends is provided with the concave spherical surface; the locking piece is installed on the connecting piece provided with the concave spherical surface, and is abutted against the other connecting piece.

[0011] Optionally, the other connecting piece that abuts against the connecting piece with the concave spherical surface is cylindrical, the inner wall of the cylinder is provided with a second necking portion, and the outer wall of the locking piece is provided with a locking head; in a locked state, the locking piece abuts against the second necking portion axially with the locking head, and the part of the locking head that extends out of the connecting piece with the second necking portion is connected to the connecting piece with the concave spherical surface; and, the end of the connecting piece with the second necking portion that abuts against the connecting piece with the concave spherical surface is provided with a second conical expansion opening, and a second avoidance gap is formed between the second conical expansion opening and the locking piece.

[0012] Optionally, the locking member of the connecting part and the connecting member connected thereto are combined to form a locking connection assembly, and at least one of the two connecting parts is connected to the corresponding rod member by the locking connection assembly and is connected to the other connecting part by the other connecting member.

[0013] Optionally, at least one of the two parts where the locking member contacts the connecting member abutting against it is also a spherical surface.

[0014] Optionally, it further includes an outer sleeve. When the two rods are coaxial, the outer sleeve is installed on the two connecting parts to limit the rotation of at least one of the connecting parts.

[0015] The present invention also provides a prefabricated component, including a plurality of prefabricated units, each of the prefabricated walls is provided with a skeleton formed by a plurality of steel bars, and the corresponding two steel bars of two adjacent prefabricated units are connected by a connecting member, and the connecting member is the above-mentioned connecting member.

[0016] Since the above-mentioned connecting member has the above-mentioned technical effects, the prefabricated components having the connecting member should also have similar technical effects, so they will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A diagram showing the connection structure between the connection member and two rods provided by the present invention;

[0018] Figure 2 for Figure 1 sectional view of

[0019] Figure 3 for Figure 2 The split structure diagram.

[0020] Figure 1-3 The reference numerals in the figures are described as follows:

[0021] 1 rod;

[0022] 2 first connecting portion, 21 first connecting piece, 211 first neck portion, 212 first conical expansion opening, 22 second connecting piece, 221 large head portion, 23 first locking piece;

[0023] 3 second connecting portion, 31 third connecting piece, 311 second neck portion, 312 second conical expansion opening, 32 fourth connecting piece, 33 second locking piece, 331 locking head;

[0024] aSpherical surface, X first avoidance gap, Y second avoidance gap. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] The term “several” as used herein refers to an indefinite number of multiples, usually more than two; and when “several” is used to indicate the number of certain components, it does not indicate the quantitative relationship between these components.

[0027] The terms "first", "second", etc. mentioned in this article are only for the convenience of describing two or more structures or components with the same or similar structures, and do not mean any special limitation on the order.

[0028] Please refer to Figure 1-3 , Figure 1 This is a diagram of the connection structure between the connection member and the two rods provided by the present invention. Figure 2 for Figure 1 A cross-sectional view of Figure 3 for Figure 2 The split structure diagram.

[0029] As shown in the figure, the present invention provides a connecting component for connecting two rods 1, including two connecting parts respectively connected to the two rods 1, and the two connecting parts can also be connected to each other; the two connecting parts each include a locking member and two connecting members, the locking member is installed on one of the two connecting members, and can be abutted against the other of the two connecting members, so that the two connecting members are in close contact and do not separate, and at least one of the two contacting parts of the two connecting members is a spherical surface a, so that the two connecting members can rotate relative to the contact point between them.

[0030] With this structure, a spherical fit is adopted between the two connecting parts of each connecting part, so that the two connecting parts can rotate relative to the contact point between them, thereby adapting to the deflection connection of two rods 1 with different axes; moreover, the locking part can lock the two connecting parts of the same connecting part so that the two connecting parts of the same connecting part can be in close contact, which is beneficial to improve the tensile and compressive properties.

[0031] For ease of description, the two connecting parts mentioned above can be referred to as the first connecting part 2 and the second connecting part 3 respectively. Figure 1 , Figure 2 The first connection part 2 refers to the connection part connected to the left rod 1, and the second connection part 3 refers to the connection part connected to the right rod 1.

[0032] In a specific solution, the two connecting pieces of at least one of the two connecting parts can be plugged into each other.

[0033] Taking the first connecting portion 2 as an example, Figure 1-3 The first connecting part 2 may include a first connecting member 21 and a second connecting member 22, wherein the first connecting member 21 may be cylindrical, and its inner wall may be provided with a first contraction portion 211, the second connecting member 22 may be inserted into the first connecting member 21, and the outer wall of the second connecting member 22 may be provided with a large head 221, and the large head 221 and the first contraction portion 211 may be axially opposed.

[0034] Moreover, at least one of the two parts where the large head 221 and the first necking part 211 abut against each other can be set as the aforementioned spherical surface a, so as to realize the free rotation of the two connecting parts relative to the contact parts. Preferably, the two parts where the large head 221 and the first necking part 211 contact each other can be set as spherical surfaces a. In this case, the contact area between the large head 221 and the first necking part 211 can be larger, which has a positive effect on improving the tensile performance of the connecting part.

[0035] The end portion (the left end portion in the accompanying drawings) where the first connecting member 21 abuts against the large head portion 221 may also be provided with a first conical expansion opening 212. A first avoidance gap X may be formed between the first conical expansion opening 212 and the second connecting member 22. The first avoidance gap X may expand the relative rotation range of the first connecting member 21 and the second connecting member 22, thereby increasing the degree of freedom of rotation adjustment of the first connecting portion 2.

[0036] In the accompanying drawings, the first locking member 23 of the first connecting part 2 can be installed in an outer sleeve on the part of the second connecting member 22 that extends out of the first connecting member 21, and can be abutted against the first connecting member 21 on the outside to ensure the close contact between the aforementioned large head 221 and the first shrinkage neck 211; the first locking member 23 and the second connecting member 22 can be connected by threaded connection. Of course, other connection methods can also be used. For example, after the position of the first locking member 23 is adjusted, the first locking member 23 and the second connecting member 22 can be directly fixedly connected by welding.

[0037] In addition, the first locking member 23 can also be inserted into the first connecting member 21 and abutted against the second connecting member 22. Specifically, the first locking member 23 can be installed inside the first connecting member 21 along the direction in which the second connecting member 22 is inserted into the first connecting member 21 (from right to left in the figure), and abut against the second connecting member 22. In this way, the technical effect of ensuring that the aforementioned large head 221 is in close contact with the first neck 211 can also be achieved. The connection between the first locking member 23 and the first connecting member 21 can also be threaded connection, welding, etc., and under this condition, the structure of the first locking member 23 can be relatively simple, and only an ordinary column structure can be used.

[0038] In another specific solution, the two connecting members of at least one of the two connecting parts may contact each other through the end portions.

[0039] Taking the second connecting portion 3 as an example, Figure 1-3 The second connecting portion 3 may include a third connecting member 31 and a fourth connecting member 32, wherein one end of the fourth connecting member 32 may be provided with a concave spherical surface a, and one end of the third connecting member 31 may contact the concave spherical surface a to achieve relative rotation of the third connecting member 31 and the fourth connecting member 32 through the concave spherical surface a.

[0040] Furthermore, the contact ends of the third connecting member 31 and the fourth connecting member 32 may also be provided with a spherical surface a. In this case, the contact area between the third connecting member 31 and the fourth connecting member 32 may be larger, and the tensile performance may be better guaranteed.

[0041] The second locking member 33 of the second connecting part 3 may have a locking head 331 with a larger radial dimension, and the third connecting member 31 may also be cylindrical, and its inner wall may be provided with a second necking portion 311. During installation, the second locking member 33 may pass through the third connecting member 31, and the portion extending out of the third connecting member 31 is connected to the fourth connecting member 32, and the portion of the second locking member 33 located in the third connecting member 31 (i.e., the locking head 331) may also abut against the second necking portion 311 of the third connecting member 31, thereby ensuring close contact between the third connecting member 31 and the fourth connecting member 32. This solution can be seen in the attached drawings, and the second locking member 33 and the fourth connecting member 32 may be fixed by threaded connection. Of course, other connection methods may also be used. For example, after the position of the second locking member 33 is adjusted, the second locking member 33 and the fourth connecting member 32 may be directly connected by welding.

[0042] In addition, the second locking member 33 can be fixedly connected to the third connecting member 31 and abutted against the fourth connecting member 32, which can also achieve the above-mentioned technical effect. The connection method between the second locking member 33 and the third connecting member 31 can also be threaded connection, welding, etc.

[0043] The end portion where the third connecting member 31 and the fourth connecting member 32 abut each other (the right end portion in the accompanying drawings) may also be provided with a second conical expansion opening 312, and a second avoidance gap Y may be formed between the second conical expansion opening 312 and the second locking member 33. The second avoidance gap Y here may expand the relative rotation range of the third connecting member 31 and the fourth connecting member 32, and may improve the degree of freedom of rotation adjustment of the second connecting portion 3.

[0044] In comparison, both of the above two solutions can realize the rotatable setting of the corresponding connecting parts. During the specific implementation, those skilled in the art can make a selection according to actual needs. The structures of the two connecting parts can be the same or different.

[0045] For any connecting part, its locking member and the connecting member connected to the locking member can be combined to form a locking connecting assembly, and the rotatable setting of the connecting part is actually a rotatable setting of the locking connecting assembly and another connecting member.

[0046] Based on this, for any connection part, one of its locking connection assembly and the other connection piece can be used to connect with the corresponding rod 1, and the other can be used to connect with the other connection part. Preferably, at least one of the two connection parts can be connected with the corresponding rod 1 by its locking connection assembly, and connected with the other connection part by the other connection piece, because the locking connection assembly is composed of two parts, and when the locking connection assembly is used to connect with the rod 1, the connection stability between the connection part and the rod 1 will be higher.

[0047] For the convenience of description, the connecting piece connected to the locking piece may be referred to as the installation connecting piece, and the other connecting piece may be referred to as the locked connecting piece.

[0048] The locking connection assembly can be connected to the rod 1 through a locking member or through an installation connection member, which can be determined in accordance with actual conditions. Figure 2 In the scheme, the first connecting part 2 is connected to the rod 1 on the left side by the second connecting member 22 (installing connecting member); for the second connecting part 3, the component labeled 32 can also be understood as a locking member, and the two components labeled 31 and 33 can be understood as two connecting members, then the second connecting part 3 is connected to the rod 1 on the right side by the locking member.

[0049] Furthermore, at least one of the two parts where the locking member and the connecting member (locked connecting member) abutting against it are in contact can also be set to a spherical surface a. In this way, the locking member and the locked connecting member can also rotate relative to each other, thereby avoiding the flexibility of rotation between the two connecting members being affected by the setting of the locking member.

[0050] Of course, as a component that is tightened after the angle adjustment is completed, the locking piece and the connecting piece that abuts against it may not rotate relative to each other, so as to ensure the reliability of locking as much as possible. Under this condition, patterns for increasing friction can be added to the contact surfaces of the locking piece and the connecting piece to increase the friction resistance to relative rotation between the two.

[0051] In the scheme of the accompanying drawings, one of the two connecting parts adopts a scheme in which the two connecting parts are plugged into each other, and the other adopts a scheme in which the two connecting parts abut against each other. Both connecting parts are connected to the rod 1 by a locking connection assembly. Specifically, both are connected to the corresponding rod 1 by a supporting connection. The connection method can be a threaded connection, of course, it can also be welding, etc. When it is a threaded connection, the outer surface of the rod 1 also needs to be processed with an external thread; the two connecting parts can be connected by their respective locked connecting parts, and the specific connection method can also be a threaded connection, welding, etc.

[0052] In addition, as described in the background technology section, the bending of the steel bars extending out of the prefabricated wall may be caused by collision. In this case, the portion of the steel bars inside the prefabricated wall is not actually bent, but only the exposed portion is deformed.

[0053] In view of this, the connecting member provided by the present invention can also be used to straighten the exposed part of the steel bars. Specifically, the above-mentioned connecting member can be used to connect the two rods 1, and then a tensile force can be applied to the two adjacent prefabricated walls. Since the two connecting parts can be adaptively rotated, under the action of the tensile load, the bent rods in the two rods 1 can be straightened, and the two rods 1 can be coaxially arranged.

[0054] When the two rods 1 are coaxially arranged (including originally coaxial and coaxial after the tensile load is applied as mentioned above), the connecting member provided by the present invention can also include an outer sleeve (not shown in the figure), which can be installed on the two connecting parts to limit the rotation of at least one of the connecting parts. In this way, the tensile performance and compressive performance of the formed connecting member can be further improved.

[0055] by Figure 2 From a perspective, the outer sleeve can be installed on the fourth connecting member 32 by means of a threaded connection. When the two rods 1 are coaxial, the connecting members and locking members of the above-mentioned connecting components can actually be coaxially arranged. At this time, the outer sleeve can be rotated so that the outer sleeve is connected to the fourth connecting member 32 while being connected to at least the first connecting member 21, thereby limiting the rotation of the second connecting part 3.

[0056] It should be noted that the connection between the outer sleeve and the first connecting member 21 mainly refers to a threaded connection, so that the fit between the two is better and it is more conducive to ensuring the coaxial setting of the two; alternatively, it can also be a sleeve connection scheme. In this case, the inner diameter of the outer sleeve can be roughly the same as the outer diameter of the first connecting member 21. Through the limitation of the inner wall of the outer sleeve, the coaxial setting of the outer sleeve and the first connecting member 21 can basically be guaranteed.

[0057] Furthermore, the above-mentioned outer sleeve can also be connected to the first locking member 23 (such as the threaded connection or sleeve connection mentioned above). At this time, both connecting parts cannot rotate, and the tensile and compressive resistance of the entire connecting component is the strongest; in addition, the part where the first locking member 23 abuts against the first connecting member 21 can be set to a surface with a higher roughness. When the two rods 1 are coaxial, the first locking member 23 is rotated to press it against the first connecting member 21, thereby limiting the rotation of the first connecting part 2.

[0058] It should be emphasized that although the original intention of the design of the connecting component provided by the present invention is to be applied to the connection of two corresponding non-coaxially arranged steel bars of adjacent prefabricated walls, this cannot be used as a limitation on the scope of implementation of the connecting component provided by the present invention. In similar cases where two rods 1 are not coaxial and need to be connected, the connecting component provided by the present invention can be used. In fact, even if the two rods 1 are coaxially arranged, they can be connected by the above-mentioned connecting component; in specific applications, the above-mentioned rod 1 can be a solid structure or a hollow structure, which needs to be determined in combination with the actual application scenario.

[0059] The present invention also provides a prefabricated component, including a plurality of prefabricated units, each of which is provided with a skeleton formed by a plurality of steel bars, and the corresponding two steel bars of two adjacent prefabricated units can be connected by a connecting member, and the connecting member can be the connecting member involved in the aforementioned embodiments.

[0060] Since the above-mentioned connecting member has the above-mentioned technical effects, the prefabricated components having the connecting member should also have similar technical effects, so they will not be elaborated here.

[0061] Furthermore, after the corresponding two steel bars of two adjacent prefabricated units are connected by a connecting member, there will still be a gap between the two adjacent prefabricated units, and this gap can be filled by pouring concrete on site. The specific process of pouring mixed concrete can refer to the existing technology and will not be described in detail here. The prefabricated unit can be any one of a prefabricated concrete wall, a prefabricated concrete pedestal, a prefabricated concrete slab, a prefabricated concrete column, a prefabricated concrete bay window, a prefabricated concrete balcony, a prefabricated concrete terrace, a prefabricated concrete corridor, a prefabricated concrete culvert, a prefabricated concrete frame, and a prefabricated concrete beam.

[0062] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A connecting member for connecting two rods (1), characterized in that: It comprises two connecting parts respectively connected to the two rods (1), and the two connecting parts can also be connected to each other; The two connecting parts each include a locking member and two connecting members, the locking member is installed on one of the two connecting members and can be tightly pressed against the other of the two connecting members so that the two connecting members are in close contact and do not separate, and at least one of the two contacting parts of the two connecting members is a spherical surface (a), so that the two connecting members can rotate relative to the contacting parts; In the two connecting parts, the two connecting pieces of at least one connecting part are in contact with each other at their ends, and one of the two contacting ends is provided with the concave spherical surface (a); the locking piece is installed on the connecting piece provided with the concave spherical surface (a) and abuts against the other connecting piece.

2. The connecting member according to claim 1, characterized in that: In the two connecting parts, the two connecting pieces of one connecting part are plugged into each other, and the inner wall of the connecting piece located on the outer side of the two connecting pieces that are plugged into each other is provided with a first necking portion (211), and the outer wall of the connecting piece located on the inner side is provided with a large head (221), and the large head (221) and the first necking portion (211) are axially opposed to each other.

3. The connecting member according to claim 2, characterized in that: The end of the outer connecting piece abutting against the large head (221) is also provided with a first conical expansion opening (212), and a first avoidance gap (X) is formed between the first conical expansion opening (212) and the inner connecting piece.

4. The connecting member according to claim 2, characterized in that: The locking member sleeve is installed on the portion of the inner connecting member extending out of the outer connecting member and abuts against the outer connecting member; or, The locking member can be installed in the outer connecting member along the insertion direction of the inner connecting member and abut against the inner connecting member.

5. The connecting member according to claim 1, characterized in that: The other connecting piece that abuts against the connecting piece with the concave spherical surface (a) is cylindrical, the inner wall of the cylindrical piece is provided with a second constricted portion (311), and the outer wall of the locking piece is provided with a locking head (331); In the locked state, the locking member abuts against the second neck portion (311) along the axial direction with the locking head (331), and the portion of the locking head (331) extending out of the connecting member provided with the second neck portion (311) is connected to the connecting member provided with the concave spherical surface (a); Furthermore, the end portion of the connecting member provided with the second neck portion (311) abutting against the connecting member provided with the concave spherical surface (a) is provided with a second conical expansion opening (312), and a second avoidance gap (Y) is formed between the second conical expansion opening (312) and the locking member.

6. The connecting member according to any one of claims 1 to 5, characterized in that: The locking member of the connecting part and the connecting member connected thereto are combined to form a locking connection assembly. Of the two connecting parts, at least one connecting part is connected to the corresponding rod (1) by the locking connection assembly, and is connected to the other connecting part by the other connecting member.

7. The connecting member according to any one of claims 1 to 5, characterized in that: At least one of the two parts where the locking member contacts the connecting member abutting against it is also a spherical surface (a).

8. The connecting member according to any one of claims 1 to 5, characterized in that: It also comprises an outer sleeve, and when the two rods (1) are coaxial, the outer sleeve is mounted on the two connecting parts to limit the rotation of at least one of the connecting parts.

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