Flexible joint for connecting sleeve extrusion type taper sleeve locking rod piece

Abstract

The invention discloses a sleeve extrusion type taper sleeve locking rod piece connecting flexible joint. The sleeve extrusion type taper sleeve locking rod piece connecting flexible joint comprises a taper sleeve, a semi-taper connecting body, a flexible body and a limiting connecting pad. The flexible body is fused with the outer conical surface and the inner wall thread part of the semi-conical connector into a whole through a special fusion method, so that the connection flexibility of the conical surface part and the inner wall thread part of the semi-conical connector is improved while the connection strength is ensured. External force is applied to extrude the conical sleeve to move linearly in the axial direction, the contact conical surface flexible body transmits movement, the semi-conical connecting body is converted into the mode that the semi-conical connecting body is folded close to the axis in the radial direction, the flexible body of the thread part of the inner wall of the semi-conical connecting body tightly holds the cylindrical face of a rod piece, and flexible fastening connection of the rod piece is achieved. The flexibility and the fatigue life of the conical surface connecting part and the rod piece connecting part of the semi-conical connecting body are improved.

Description

Technical Field

[0001] The invention relates to the field of rapid construction of bridges and building projects, and in particular to a field rapid connection technology for rods. Background Art

[0002] With the continuous improvement of my country's economy and living standards, the demand for infrastructure and real estate construction is very huge, and the requirements for building quality and safety are more stringent. In the field of rapid construction of bridges and building projects, on-site connection of rods is very common and used in large quantities. During on-site construction, rapid connection of rods is widely used in the rapid construction of bridges and building projects, and the quality, life and safety of rod connections are becoming more and more important.

[0003] The commonly used rod connection methods now are: first, the press-fit connection of the semi-conical rod connector + cone sleeve, which is characterized by fast connection, easy operation, and high connection strength. The disadvantage is that it is a rigid connection with the rod, has poor fatigue impact resistance, low fatigue life, and requires equipment loading and manual operation at the same time, which is not suitable for high-rise operations. Second, the ends of the rods need to be processed with threads and connected with connecting screw sleeves; its characteristics are simple operation, certain connection strength, and can be used in high-rise operations, but the disadvantages are too obvious, low connection strength, poor fatigue impact resistance, low fatigue life, and the need to make threads on the rods in advance, which has high production costs. The third is the ordinary rod connection structure at the wet joints of prefabricated components, which uses rod bending and lap connection or rod welding connection, which has high strength, requires more materials and labor, and is difficult to construct, and is not suitable for on-site connection operations of high-rise building structure rods. Summary of the invention

[0004] The purpose of the present invention is to solve the above-mentioned problem and to provide a sleeve extrusion type cone sleeve locking rod connection flexible joint, which can quickly realize on-site rod connection. The rod connection joint is a flexible fusion connection, which improves the flexibility and fatigue life of the rod connection while ensuring the connection strength.

[0005] In order to overcome the deficiencies of the prior art, the technical solution provided by the present invention is:

[0006] A sleeve extrusion type cone sleeve locking rod connecting flexible joint, comprising a cone sleeve, a semi-conical connector, a flexible body and a limit connection pad; the inner wall of the cone sleeve is a conical surface, and its cone angle meets the self-locking angle requirement; the upper and lower ends of the outer contour of the semi-conical connector are semi-conical surfaces, the inner wall has a through thread, and the middle part of the inner wall has a circular ring groove, and the cone angle of the cone surface meets the self-locking angle requirement; the flexible body and two semi-conical connectors are integrated by a fusion method to form two semi-conical flexible fusion bodies, and the limit connection pad is installed in the annular groove in the middle of the inner wall of the two semi-conical flexible fusion bodies to connect the two semi-conical flexible fusion bodies together and perform axial limiting; the two cone sleeves are mounted on the upper and lower cone surfaces of the two semi-conical flexible fusion bodies.

[0007] In the above-mentioned sleeve extrusion type cone sleeve locking rod connection flexible joint, the flexible body is integrated with the outer cone surface of the semi-conical connector by a special fusion method, and the flexible body is integrated with the inner wall thread portion of the semi-conical connector. The integrated body after fusion forms a semi-conical double-sided flexible fusion body.

[0008] In the above-mentioned sleeve extrusion type cone sleeve locking rod connection flexible joint, the flexible body is integrated with the inner wall thread portion of the semi-conical connector by a special fusion method, and there is no flexible body on the outer cone surface of the semi-conical connector. The fused whole forms a semi-conical single-sided flexible fusion body.

[0009] In the above-mentioned sleeve extrusion type cone sleeve locking rod connection flexible joint, the fusion method tightly and firmly fuses the outer cone surface and inner wall thread part of the flexible body and the semi-conical connector together, which cannot be separated by human power.

[0010] In the above-mentioned sleeve extrusion type cone sleeve locking rod connection flexible joint, the cone surface of the cone sleeve is in contact with the flexible body fused on the cone surface of the semi-conical double-sided flexible fusion body, and the flexible body fused on the inner wall of the semi-conical double-sided flexible fusion body is in contact with the cylindrical surface of the rod. When the cone sleeve is squeezed by external force to move along the axis, the cone surface of the cone sleeve and the flexible body fused on the cone surface of the semi-conical double-sided flexible fusion body are tightly connected together, which improves the connection strength, flexibility and service life of the cone joint; the movement is transmitted by squeezing the cone surface of the cone sleeve and the cone surface of the semi-conical double-sided flexible fusion body, so that the semi-conical double-sided flexible fusion body is radially contracted close to the axis; the flexible fusion body on the inner wall of the semi-conical double-sided flexible fusion body hugs the rod connection, which improves the connection strength, flexibility and service life of the rod connection. Thereby improving the overall connection strength, flexibility and fatigue life of the rod and the sleeve extrusion type cone sleeve locking rod connection flexible joint.

[0011] In the above-mentioned sleeve extrusion type cone sleeve locking rod connection flexible joint, the cone surface of the cone sleeve contacts the cone surface of the semi-conical single-sided flexible fusion body, and the inner wall fusion flexible body of the semi-conical single-sided flexible fusion body contacts the cylindrical surface of the rod. When the cone sleeve is squeezed by external force to move along the axis, the cone surface of the cone sleeve and the cone surface of the semi-conical single-sided flexible fusion body are tightly connected together to ensure the connection strength of the cone joint; the movement is transmitted through the cone surface of the cone sleeve and the cone surface of the semi-conical single-sided flexible fusion body, so that the semi-conical single-sided flexible fusion body is radially contracted toward the axis; the inner wall flexible fusion body of the semi-conical single-sided flexible fusion body hugs the rod connection, improving the connection strength, flexibility and service life of the rod connection. Thereby improving the overall connection strength, flexibility and fatigue life of the rod and the sleeve extrusion type cone sleeve locking rod connection flexible joint.

[0012] In the above-mentioned sleeve extrusion type cone sleeve locking rod connection flexible joint, the rods are all cylindrical rods that need to be connected.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] One of the advantages is that the sleeve extrusion type cone sleeve locking rod connection flexible joint, the conical sleeve and the two conical surfaces of the semi-conical connector, the inner wall of the semi-conical connector and the cylindrical rod to be connected are all tightly connected by a flexible fusion body, and the original rigid connection of the rod is transformed into a flexible connection. Under the premise of ensuring the connection strength of the rod, the connection strength, flexibility and fatigue life of the conical surface fusion part of the semi-conical connector and the rod connection part are improved. Thereby improving the overall connection strength, flexibility and fatigue life of the rod and the sleeve extrusion type cone sleeve locking rod connection flexible joint.

[0015] The second advantage is that the sleeve extrusion type cone sleeve locking rod connection flexible joint, the inner wall of the semi-conical connector and the cylindrical rod to be connected are tightly connected by the flexible fusion body, which changes the original rigid connection of the rod into a flexible connection. Under the premise of ensuring the connection strength of the rod, the connection strength, flexibility and fatigue life of the semi-conical connector and the rod connection are improved. Thus, the overall connection strength, flexibility and fatigue life of the rod and the sleeve extrusion type cone sleeve locking rod connection flexible joint are improved.

[0016] The third advantage is that it is easy to operate, quick to connect, and suitable for connection with all cylindrical rods. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0018] Figure 1 It is a schematic structural diagram of Example 1 of a sleeve extrusion type cone sleeve locking rod connecting a flexible joint according to the present invention.

[0019] Figure 2 This is a schematic diagram of the flexible connection state of the rod joint with compression connection in Example 1.

[0020] Figure 3 It is a schematic structural diagram of Example 2 of a sleeve extrusion type cone sleeve locking rod connecting a flexible joint according to the present invention.

[0021] Figure 4 This is a schematic diagram of the flexible connection state of the rod joint with compression connection in Example 2.

[0022] In the figure: 1. conical sleeve; 2. semi-conical connector; 3. flexible body; 4. limit connection pad; 7. rod. DETAILED DESCRIPTION

[0023] The above scheme is further described below with reference to specific examples. It should be understood that these examples are used to illustrate the present invention and are not intended to limit the scope of the present invention. The implementation conditions used in the examples can be further adjusted according to the conditions of the specific manufacturer, and the implementation conditions not specified are usually the conditions in conventional experiments.

[0024] See Example 1 Figure 1 , Figure 2 , Figure 1 is a schematic diagram of the structure of Embodiment 1 of the present invention, Figure 2 This is a schematic diagram of the compression connection state of Example 1 of the present invention. Figure 1 , Figure 2 Provided is a sleeve extrusion type cone sleeve locking rod connection flexible joint, comprising a cone sleeve 1, a cone connector 2, a flexible body 3 and a limit connection pad 4. The rod 7 is a cylindrical rod to be connected. The inner wall of the cone sleeve 1 is a conical surface, and its cone angle meets the self-locking angle requirement; the upper and lower ends of the outer contour of the semi-conical connector 2 are semi-conical surfaces, the inner wall has a through thread, and the middle of the inner wall has a circular ring groove, and the cone angle of the cone surface meets the self-locking angle requirement. The limit connection pad 4 is installed in the annular groove in the middle of the inner wall of two semi-conical double-sided flexible fusion bodies 5, connects the two semi-conical double-sided flexible fusion bodies 5 together, and performs axial limitation; the two cone sleeves 1 are mounted on the upper and lower cone surfaces of the semi-conical double-sided flexible fusion body 5.

[0025] In Example 1, the flexible body 3 is integrated with the outer cone surface of the semi-conical connector 2 and the flexible body 3 is integrated with the inner wall thread of the semi-conical connector 2 by a special fusion method. The integrated fusion forms a semi-conical double-sided flexible fusion body 5.

[0026] The conical surface of the conical sleeve 1 in Example 1 is in contact with the flexible body 3 fused on the conical surface of the semi-conical double-sided flexible fusion body 5, and the flexible body 3 fused on the inner wall of the semi-conical double-sided flexible fusion body 5 is in contact with the cylindrical surface of the rod 7 to be connected. When the conical sleeve 1 is squeezed by external force to move along the axis, the conical surface of the conical sleeve 1 and the flexible body 3 fused on the conical surface of the semi-conical double-sided flexible fusion body 5 are tightly connected together, thereby improving the connection strength, flexibility and fatigue life of the conical joint; the movement is transmitted by squeezing the conical surface of the conical sleeve 1 and the conical surface of the semi-conical double-sided flexible fusion body 5, so that the semi-conical double-sided flexible fusion body 5 is radially contracted close to the axis; the flexible body 3 on the inner wall of the semi-conical double-sided flexible fusion body 5 hugs the rod 7 for connection, thereby improving the connection strength, flexibility and fatigue life of the connecting part of the rod 7. Thereby improving the overall connection strength, flexibility and fatigue life of the flexible joint connecting the rod 7 and the sleeve extrusion type conical sleeve locking rod.

[0027] Example 2 See Figure 3 , Figure 4 , Figure 3 is a schematic diagram of the structure of Embodiment 2 of the present invention, Figure 4 This is a schematic diagram of the compression connection state of Example 2 of the present invention. Figure 3 , Figure 4 A sleeve extrusion type cone sleeve locking rod connection flexible joint is provided, comprising a cone sleeve 1, a cone connection body 2, a flexible body 3 and a limit connection pad 4. The rod 7 is a cylindrical rod to be connected.

[0028] The inner wall of the tapered sleeve 1 in Example 2 is a conical surface, and its cone angle meets the self-locking angle requirements; the upper and lower ends of the outer contour of the semi-conical connector 2 are semi-conical surfaces, the inner wall has a through thread, and there is a circular ring groove in the middle of the inner wall, and its cone angle meets the self-locking angle requirements.

[0029] In Example 2, the flexible body 3 is integrated with the inner wall thread of the semi-conical connector 2 by a special fusion method, and there is no flexible body on the outer cone surface of the semi-conical connector 2. The integrated fusion forms a semi-conical single-sided flexible fusion body 6.

[0030] In Example 2, the fusion method of the semi-conical single-sided flexible fusion body 6 tightly and firmly fuses the flexible body 3 and the inner wall threaded portion of the semi-conical connecting body 2 together, and cannot be separated by human power.

[0031] The limiting connecting pad 4 in Example 2 is installed in the annular groove in the middle of the inner wall of the two semi-conical single-sided flexible fusion bodies 6, connecting the two semi-conical single-sided flexible fusion bodies 6 together and performing axial limiting; the two conical sleeves 1 are mounted on the upper and lower conical surfaces of the semi-conical single-sided flexible fusion body 6.

[0032] The conical surface of the conical sleeve 1 described in Example 2 contacts the conical surface of the semi-conical single-sided flexible fusion body 6, and the flexible body 3 fused to the inner wall of the semi-conical single-sided flexible fusion body 6 contacts the cylindrical surface of the rod 7. When the conical sleeve 1 is squeezed by an external force to move along the axis, the conical surface of the conical sleeve 1 and the conical surface of the semi-conical single-sided flexible fusion body 6 are tightly connected together to ensure the connection strength of the conical joint; the movement is transmitted by squeezing the conical surface of the conical sleeve 1 and the conical surface of the semi-conical single-sided flexible fusion body 6, so that the semi-conical single-sided flexible fusion body 6 is radially contracted close to the axis; the flexible body 3 on the inner wall of the semi-conical single-sided flexible fusion body 6 hugs the rod 7 for connection, thereby improving the connection strength, flexibility and fatigue life of the connection part of the rod 7. Thereby improving the overall connection strength, flexibility and fatigue life of the rod 7 and the sleeve extrusion type conical sleeve locking rod connection flexible joint.

[0033] The flexible body 3 in the embodiments 1 and 2 may be rubber, but is not limited to rubber, and includes all flexible materials that meet the requirements of connection strength, connection flexibility and fatigue life.

[0034] The fusion methods described in Examples 1 and 2 include all fusion methods that meet the requirements of connection strength, tightness and firmness.

[0035] The rods 7 described in Examples 1 and 2 may be steel bars, but are not limited to steel bars, and include all cylindrical rods that need to be connected. The above examples 1 and 2 are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent transformation or modification made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A sleeve extrusion type cone sleeve locking rod connecting flexible joint, characterized in that: The invention comprises two conical sleeves (1), two semi-conical connectors (2), a flexible body (3) and a limiting connection pad (4); the inner wall of the conical sleeve (1) is a conical surface, and its conical angle meets the self-locking angle requirement; the upper and lower ends of the outer contour of the semi-conical connector (2) are semi-conical surfaces, the inner wall has a through thread, and the middle part of the inner wall has a circular ring groove, and the conical angle of the conical surface meets the self-locking angle requirement; the flexible body (3) and the two semi-conical connectors (2) are integrated into two semi-conical flexible fusion bodies by a fusion method, and the limiting connection pad (4) is installed in the annular groove in the middle part of the inner wall of the two semi-conical flexible fusion bodies, connects the two semi-conical flexible fusion bodies together, and performs axial limiting; the two conical sleeves (1) are mounted on the upper and lower conical surfaces of the two semi-conical flexible fusion bodies.

2. The sleeve extrusion type cone sleeve locking rod connecting flexible joint according to claim 1, characterized in that: The semi-conical flexible fusion body is a semi-conical double-sided flexible fusion body, wherein the flexible body (3) and the outer conical surface of the semi-conical connector (2) are fused into one body through a special fusion method, and the flexible body (3) and the inner wall threaded portion of the semi-conical connector (2) are fused into one body, and the fused whole forms a semi-conical double-sided flexible fusion body (5).

3. The sleeve extrusion type cone sleeve locking rod connecting flexible joint according to claim 1, characterized in that: The semi-conical flexible fusion body is a semi-conical single-sided flexible fusion body, wherein the flexible body (3) is fused with the inner wall thread portion of the semi-conical connector (2) by a special fusion method, and the outer conical surface of the semi-conical connector (2) does not have the flexible body (3), and the fused whole forms a semi-conical single-sided flexible fusion body (6).

4. The sleeve extrusion type cone sleeve locking rod connecting flexible joint according to claim 2, characterized in that: The fusion method is to fuse the outer cone surface and the inner wall thread portion of the flexible body (3) and the semi-conical connecting body (2) tightly and firmly together so that they cannot be separated by human power.

5. The sleeve extrusion type cone sleeve locking rod connecting flexible joint according to claim 2 or 4, characterized in that: The conical surface of the conical sleeve (1) contacts the flexible body (3) fused on the conical surface of the semi-conical double-sided flexible fusion body (5), and the flexible body (3) fused on the inner wall of the semi-conical double-sided flexible fusion body (5) contacts the cylindrical surface of the rod (7). When an external force presses the conical sleeve (1) to move along the axis, the conical surface of the conical sleeve (1) and the flexible body (3) fused on the conical surface of the semi-conical double-sided flexible fusion body (5) are tightly connected together; the movement is transmitted by squeezing the conical surface of the conical sleeve (1) and the flexible body (3) fused on the conical surface of the semi-conical double-sided flexible fusion body (5), so that the semi-conical double-sided flexible fusion body (5) is radially contracted close to the axis; the flexible body (3) on the inner wall of the semi-conical double-sided flexible fusion body (5) is tightly connected to the rod (7).

6. The sleeve extrusion type cone sleeve locking rod connecting flexible joint according to claim 3, characterized in that: The conical surface of the conical sleeve (1) contacts the conical surface of the semi-conical single-sided flexible fusion body (6), and the flexible body (3) fused to the inner wall of the semi-conical single-sided flexible fusion body (6) contacts the cylindrical surface of the rod (7). When an external force squeezes the conical sleeve (1) to move along the axis, the conical surface of the conical sleeve (1) and the conical surface of the semi-conical single-sided flexible fusion body (6) are tightly connected together; the movement is transmitted by squeezing the conical surface of the conical sleeve (1) and the conical surface of the semi-conical single-sided flexible fusion body (6), so that the semi-conical single-sided flexible fusion body (6) is radially contracted close to the axis; the flexible body (3) on the inner wall of the semi-conical single-sided flexible fusion body (6) is tightly connected to the rod (7).

7. The sleeve extrusion type cone sleeve locking rod connecting flexible joint according to claim 5 or 6, characterized in that: The rods (7) are all cylindrical rods that need to be connected.

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