Prefabricated cable clamp

Abstract

The present invention provides a prefabricated cable clamp, which includes a central ear plate and a plurality of groove seat plates arranged on opposite sides of the central ear plate. The central ear plate is threadedly connected to the groove seat plates. A radial cable connection hole is formed at the end of the central ear plate, and a plurality of circumferential cable positioning grooves are correspondingly arranged on the central ear plate and the groove seat plates. A plurality of shear key grooves are formed on one of the two adjacent groove seat plates and / or between the adjacent groove seat plates and the central ear plate, and a plurality of shear keys are correspondingly arranged on the other one to cooperate with the shear key grooves. By adopting the method of assembling multiple groove seat plates with the central ear plate, it not only avoids the problems of high mold manufacturing cost and many internal defects of cast steel parts caused by the casting process, but also avoids the material defects caused by welding stress. In addition, by pairing the shear key grooves and the shear keys, the connection reliability between the central ear plate and the groove seat plates and between adjacent groove seat plates can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of building structure design, and particularly to an assembled cable clamp. Background Art

[0002] The spoke-type cable net radial cable and circumferential cable connection cable clamp is the most critical force transfer node of such structures. Due to its complex shape, traditional radial cable and circumferential cable connection cable clamps mostly adopt cast steel parts or multi-plate welding connection processes. The mold manufacturing cost of cast steel parts is high, the universality is poor, and there are many internal defects and poor mechanical properties; while the residual stress generated by welding connection will affect the accuracy and reliability of the cable clamp. Summary of the Invention

[0003] The purpose of the present invention is to provide an assembled cable clamp, which not only avoids the problems of high mold manufacturing cost and many internal defects of cast steel parts brought about by the casting process, but also avoids the material defects caused by welding stress, and realizes the standardized, prefabricated and assembled production of the assembled cable clamp.

[0004] To achieve the above purpose, the present invention provides an assembled cable clamp, including a central ear plate and a plurality of groove seat plates arranged on opposite sides of the central ear plate. The central ear plate is threadedly connected to the groove seat plates. Radial cable connection holes are provided at the ends of the central ear plate, and a plurality of circumferential cable positioning grooves are correspondingly provided on the central ear plate and the groove seat plates. A plurality of shear key grooves are provided on one of the two adjacent groove seat plates and / or between the adjacent groove seat plates and the central ear plate, and a plurality of shear keys are correspondingly provided on the other to cooperate with the shear key grooves.

[0005] Optionally, when there are at least two groove seat plates on the same side of the central ear plate, at least one of the groove seat plates is provided with shear key grooves and shear keys on opposite sides respectively.

[0006] Optionally, the assembled cable clamp further includes a plurality of screw rods and locking nuts. Corresponding connection holes are provided on the central ear plate and the groove seat plates. The screw rods sequentially pass through the corresponding connection holes on the central ear plate and all the groove seat plates along a preset direction and are fixed by the locking nuts.

[0007] Optionally, the connection holes and the shear keys are alternately distributed.

[0008] Optionally, a reinforcing plate with a radial cable perforation is provided on each of the axial two sides of the radial cable connection hole on the central ear plate.

[0009] Optionally, the reinforcing plate is rolled from low alloy steel.

[0010] Optionally, the circumferential cable positioning grooves are located at the bottoms of the central ear plate and the groove seat plates.

[0011] Optionally, a galvanized anti-corrosion layer is covered on the hole wall of the radial cable connecting hole and the groove wall of the circumferential cable positioning groove.

[0012] Optionally, both the groove seat plate and the central ear plate are made of steel.

[0013] Optionally, both the groove seat plate and the central ear plate are formed by machining.

[0014] The present invention provides an assembled cable clamp, which has at least one of the following beneficial effects:

[0015] 1) The groove seat plate and the central ear plate are connected by a threaded connection method, which not only avoids the problems of high mold manufacturing cost and many internal defects of cast steel parts caused by the casting process, but also avoids the material defects caused by welding stress, greatly improving the reliability of the assembled cable clamp;

[0016] 2) By adopting the method of assembling multiple groove seat plates and central ear plates, the standardized, prefabricated and assembled production of the assembled cable clamp is realized, reducing the production cost and shortening the production cycle;

[0017] 3) By pairing shear key grooves and shear keys between the central ear plate and the groove seat plate and between adjacent groove seat plates, the connection reliability between the central ear plate and the groove seat plate and between adjacent groove seat plates can be improved;

[0018] 4) By adopting the method of splicing multiple groove seat plates, the use of too thick steel plates is avoided, and the utilization rate of the z-direction performance of steel is improved;

[0019] 5) The number of groove seat plates can be increased or decreased according to the force requirement, and standardized production can be realized, reducing the production cost and shortening the production cycle. Description of the Drawings

[0020] Those of ordinary skill in the art will understand that the provided drawings are used to better understand the present invention and do not constitute any limitation to the scope of the present invention. Among them:

[0021] Figure 1 is an exploded view of the assembled cable clamp provided by the embodiment of the present invention;

[0022] Figure 2 is an axonometric view of the assembled cable clamp provided by the embodiment of the present invention;

[0023] In the drawings:

[0024] 1 - Central ear plate; 2 - Groove seat plate; 3 - Radial cable connecting hole; 4 - Circumferential cable positioning groove; 5 - Shear key groove; 6 - Shear key; 7 - Screw; 8 - Locking nut; 9 - Connecting hole. Detailed Embodiments

[0025] To make the objectives, advantages and features of the present invention clearer, the following further elaborates on the present invention in conjunction with the accompanying drawings and specific embodiments. It should be noted that the accompanying drawings are all in a very simplified form and not drawn to scale, and are only used to conveniently and clearly assist in explaining the objectives of the embodiments of the present invention. In addition, the structures shown in the accompanying drawings are often part of the actual structures. In particular, the accompanying drawings need to show different emphases and sometimes use different scales.

[0026] As used in the present invention, the singular forms "a", "an" and "the" include plural objects unless the context clearly indicates otherwise. As used in the present invention, the term "or" is generally used in the sense of including "and / or" unless the context clearly indicates otherwise. As used in the present invention, the term "several" is generally used in the sense of including "at least one" unless the context clearly indicates otherwise. As used in the present invention, the term "at least two" is generally used in the sense of including "two or more" unless the context clearly indicates otherwise. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third" may explicitly or implicitly include one or at least two of such features.

[0027] Please refer to Figure 1 - Figure 2 , Figure 1 , which is an exploded view of the assembled cable clip provided by the embodiment of the present invention; Figure 2 , which is an axonometric view of the assembled cable clip provided by the embodiment of the present invention. This embodiment provides an assembled cable clip, including a central ear plate 1 and a plurality of groove seat plates 2 arranged on opposite sides of the central ear plate 1. The central ear plate 1 is threadedly connected to the groove seat plates 2. A radial cable connection hole 3 is provided at the end of the central ear plate 1, and a plurality of circumferential cable positioning grooves 4 are correspondingly provided on the central ear plate 1 and the groove seat plates 2. A plurality of shear key grooves 5 are provided on one of the two adjacent groove seat plates 2 and / or between the adjacent groove seat plates 2 and the central ear plate 1, and a plurality of shear keys 6 are correspondingly provided on the other, which are matched with the shear key grooves 5.

[0028] By adopting the method of assembling multiple groove seat plates 2 with the central ear plate 1, it not only avoids the problems of high mold manufacturing cost and many internal defects of cast steel parts caused by the casting process, but also avoids the material defects caused by welding stress, realizes the standardized, prefabricated and assembled production of the assembled cable clip, reduces the production cost and shortens the production cycle. In addition, by pairing the shear key grooves 5 and the shear keys 6, the connection reliability between the central ear plate 1 and the groove seat plates 2 and between the adjacent groove seat plates 2 can be improved.

[0029] The number of the central ear plates 1 is one. The number of the groove seat plates 2 on the same side of the central ear plate 1 can be one or more, and the number can be increased or decreased according to the force requirement. The present application does not make specific limitations in this regard. In this embodiment, the number of the groove seat plates 2 is 4, and two groove seat plates 2 are respectively arranged on the opposite sides of the central ear plate 1.

[0030] When there are at least two groove seat plates 2 on the same side of the central ear plate 1, shear key grooves 5 and shear keys 6 are respectively arranged on the opposite sides of at least one groove seat plate 2, so as to facilitate the cooperation with the groove seat plates 2 and the central ear plate 1 on both sides at the same time. For example, please refer to Figure 1 , from left to right, the four groove seat plates 2 are respectively named the first groove seat plate, the second groove seat plate, the third groove seat plate and the fourth groove seat plate. Then, a first shear key groove is arranged on the right side surface of the first groove seat plate, a first shear key for cooperating with the first shear key groove is arranged on the left side surface of the second groove seat plate, a second shear key groove is arranged on the right side surface of the second groove seat plate, a second shear key for cooperating with the second shear key groove is arranged on the left side surface of the central ear plate 1, a third shear key is arranged on the right side surface of the central ear plate 1, a third shear key groove for cooperating with the third shear key is arranged on the left side surface of the third groove seat plate, a fourth shear key is arranged on the right side surface of the third groove seat plate, and a fourth shear key groove for cooperating with the fourth shear key is arranged on the left side surface of the fourth groove seat plate. It should be understood that Figure 1 only one cooperation mode of the central ear plate 1 with the groove seat plates 2 and the shear keys 6 between adjacent groove seat plates 2 is schematically shown, rather than limiting this cooperation mode.

[0031] In this embodiment, the materials of the groove seat plates 2 and the central ear plate 1 are both steel. By adopting the way of splicing multiple groove seat plates 2 in this embodiment, the use of too thick steel plates is avoided, thereby improving the utilization rate of the z-direction performance of the steel.

[0032] Furthermore, the groove seat plates 2 and the central ear plate 1 are both formed by machining. For conventional cast steel cable clamps, due to different radial cable forces and different ear plate thicknesses, each type of cable clamp requires a new mold for casting, resulting in waste of molds. However, for the assembled cable clamp provided in this embodiment, it can be directly formed by machining. The central ear plate 1 can adopt steel plates with different thicknesses according to the force requirement, and the radial cable connection holes 3 on the central ear plate 1 and the circumferential cable positioning grooves 4 on the central ear plate 1 and the groove seat plates 2 can be machined by computer programming and numerical control machine tools to meet the requirements of different sizes and forms. During the machining process, the machining quality can be controlled by the currently relatively mature numerical control machine tool processing technology, so that the quality reliability, appearance beauty and production convenience of the assembled cable clamp can be jointly realized.

[0033] Please continue to refer to Figure 1, the prefabricated cable clamp further includes a plurality of screw rods 7 and locking nuts 8. Corresponding connection holes 9 are provided on the central ear plate 1 and the groove seat plate 2. The screw rod sequentially passes through the corresponding connection holes 9 on the central ear plate 1 and all the groove seat plates 2 along a preset direction and is fixed by the locking nut 8. Since the central ear plate 1 and the groove seat plate 2 are connected by screw threads of the screw rod and the nut, the advantages of high strength, reliable performance and low cost of steel can be fully utilized. There is no need to adopt the conventional casting process, the manufacturing difficulty is low, the cost of manufacturing the cast steel mold is saved, and the situation of internal defects in the casting joint is avoided, greatly improving the reliability of the prefabricated cable clamp. It should be noted that the statement that the screw rod sequentially passes through the corresponding connection holes 9 on the central ear plate 1 and all the groove seat plates 2 along a preset direction should be understood as the screw rod sequentially passes through the groove seat plate 2 in the middle, the central ear plate 1, and the groove seat plate 2 on the other side along the direction perpendicular to the central ear plate 1 and the groove seat plate 2 (for example Figure 1 from right to left in), so that the central ear plate 1 and all the groove seat plates 2 can be connected and fixed with fewer screw rods, and the connection reliability is higher.

[0034] In this embodiment, three connection holes 9 are correspondingly provided on the central ear plate 1 and the groove seat plate 2, and the number of the screw rods and the locking nuts 8 is three.

[0035] In this embodiment, there are also three shear keys 6 on the same side of the central ear plate 1 and the groove seat plate 2, and the three connection holes 9 and the three shear keys 6 are alternately distributed. Of course, the present application does not impose any restrictions on the distribution manner of the shear key 6 and the connection hole 9, as long as the force is balanced.

[0036] Preferably, a reinforcing plate with a radial cable perforation is provided on each of the axial two sides of the radial cable connection hole 3 on the central ear plate 1 (not shown in the figure). Considering that in actual application, the radial cable connection hole 3 of the central ear plate 1 will be subjected to a strong pulling force of the radial cable, in this embodiment, by arranging two reinforcing plates with radial cable perforations on the axial two sides of the radial cable connection hole 3, the structural strength of the central ear plate 1 at the radial cable connection hole 3 can be effectively improved.

[0037] Further preferably, the reinforcing plate is an annular structure rolled from low alloy steel.

[0038] Preferably, a galvanized anti-corrosion layer is covered on the hole wall of the radial cable connection hole 3 and the groove wall of the circumferential cable positioning groove 4 to extend the service life of the prefabricated lock clamp. Of course, other methods such as coating can also be used for anti-corrosion, and the present application does not limit this.

[0039] In this embodiment, the circumferential cable positioning groove 4 is located at the bottom of the central ear plate 1 and the groove seat plate 2, and the number of the circumferential cable positioning grooves 4 is four. Of course, the present application does not limit the number of the circumferential cable positioning grooves 4, and it can be adjusted according to actual requirements. In addition, the present application does not impose any restrictions on the position of the circumferential cable positioning groove 4 either. For example, it can also be arranged at the top or other positions of the central ear plate 1 according to different component structures and usage scenarios.

[0040] In summary, the embodiment of the present invention provides an assembled cable clamp. By adopting the method of assembling multiple groove seat plates and a central ear plate, it not only avoids the problems of high mold manufacturing cost and many internal defects of cast steel parts caused by the casting process, but also avoids the material defects caused by welding stress, realizes the standardized, prefabricated and assembled production of the assembled cable clamp, reduces the production cost and shortens the production cycle. In addition, by pairing and setting shear key grooves and shear keys, the connection reliability between the central ear plate and the groove seat plate and between adjacent groove seat plates can be improved.

[0041] The above is only the preferred embodiment of the present invention and does not play any limiting role in the present invention. Any person skilled in the art, within the scope of the technical solution of the present invention, makes any form of equivalent replacement or modification and other changes to the technical solution and technical content disclosed by the present invention, which are all within the content of the technical solution of the present invention and still fall within the protection scope of the present invention.

Claims

1. An assembled cable clamp, characterized in that, it includes a central ear plate and a plurality of groove seat plates arranged on opposite sides of the central ear plate. The central ear plate is threadedly connected to the groove seat plates. A radial cable connection hole is formed at the end of the central ear plate, and a plurality of circumferential cable positioning grooves are correspondingly arranged on the central ear plate and the groove seat plates. A plurality of shear key grooves are formed on one of the two adjacent groove seat plates and / or between the adjacent groove seat plates and the central ear plate, and a plurality of shear keys are correspondingly arranged on the other to cooperate with the shear key grooves; the assembled cable clamp further includes a plurality of screw rods and locking nuts. Corresponding connection holes are formed on the central ear plate and the groove seat plates. The screw rods sequentially penetrate through the connection holes corresponding to the central ear plate and all the groove seat plates along a preset direction and are fixed by the locking nuts; a reinforcing plate with a radial cable through hole is arranged on each of the axial two sides of the radial cable connection hole on the central ear plate.

2. The assembled cable clamp according to claim 1, characterized in that, when there are at least two groove seat plates on the same side of the central ear plate, shear key grooves and shear keys are respectively arranged on opposite sides of at least one of the groove seat plates.

3. The assembled cable clamp according to claim 1, characterized in that, the connection holes and the shear keys are alternately distributed.

4. The assembled cable clamp according to claim 1, characterized in that, the reinforcing plate is rolled from low alloy steel.

5. The assembled cable clamp according to claim 1, characterized in that, the circumferential cable positioning grooves are located at the bottoms of the central ear plate and the groove seat plates.

6. The assembled cable clamp according to claim 1, characterized in that, a galvanized anti-corrosion layer covers the hole wall of the radial cable connection hole and the groove wall of the circumferential cable positioning groove.

7. The assembled cable clamp according to claim 1, characterized in that, the groove seat plates and the central ear plate are both made of steel.

8. The assembled cable clamp according to claim 7, characterized in that, the groove seat plates and the central ear plate are both formed by machining.

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