Metal shaft with adjustable length

Abstract

The utility model discloses a length-adjustable metal shaft, which comprises a main shaft and is characterized in that external thread lantern rings are respectively fixed at two ends of the main shaft; and the external thread lantern ring is connected with an extension assembly. The utility model relates to the technical field of metal shafts, in particular to a length-adjustable metal shaft. According to the metal shaft with the adjustable length, the length of the metal shaft can be adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of metal shafts, in particular to a metal shaft with adjustable length. Background Art

[0002] There is an increasing demand for connection and transmission components in mechanical technology, especially in situations where adjustable length is required. Traditional fixed-length shafts may not be flexible enough in some cases to meet the needs of specific applications. In order to solve this problem, an adjustable-length metal shaft has been developed to provide a solution that can adjust the length according to actual needs to adapt to different working environments and mechanical structures. Utility Model Content

[0003] The utility model provides a metal shaft with adjustable length, which can adjust the length of the metal shaft.

[0004] A length-adjustable metal shaft comprises a main shaft, characterized in that: external threaded collars are respectively fixed at both ends of the main shaft;

[0005] The externally threaded collar is connected to the extension assembly;

[0006] The elongation assembly comprises a circular ring, the external threaded collar is threadedly connected to the circular ring, the outer end of each circular ring is respectively fixedly connected to a conical ring, each conical ring is respectively passed through by a round rod, the small end of the conical ring is passed through by the round rod, and the large end of the conical ring is fixed to the circular ring;

[0007] The outer end of each round rod is respectively fixedly connected to one end of the elongated shaft;

[0008] The other end of each round rod is fixedly connected to the small end of the conical block, and the large end of the conical block is fixedly connected to the cross rod. Each cross rod is inserted into a corresponding cross slot, and the cross slot is arranged at both ends of the main shaft.

[0009] As a further limitation of the technical solution, the conical ring can compress the conical block, and when the circular ring and the external threaded collar are tightened, the conical ring compresses the conical block.

[0010] As a further limitation of the present technical solution, the extension assembly includes end caps, and the externally threaded collars are respectively threadedly connected to the end caps.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are:

[0012] The length-adjustable metal shaft has extension components at both ends, allowing the user to easily adjust the length of the shaft according to actual needs, thereby improving the adaptability and flexibility of the mechanical system;

[0013] The structural design of the tapered ring and tapered block ensures the stability and reliability of the connection, and maintains good performance even under heavy loads. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0015] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the second embodiment of the utility model;

[0017] Figure 3 It is a schematic diagram of the local three-dimensional structure of the utility model Figure 1 ;

[0018] Figure 4 It is a schematic diagram of the local three-dimensional structure of the utility model Figure 2 ;

[0019] Figure 5 It is a schematic diagram of the local three-dimensional structure of the utility model Figure 3 .

[0020] 1. Spindle, 2. Circular ring, 3. Extension shaft, 4. Round rod, 5. Tapered ring, 6. End cap, 7. External threaded collar, 8. Cross slide, 9. Tapered block, 10. Cross rod. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-Figure 5 The utility model is further described with implementation modes.

[0022] The utility model provides a length-adjustable metal shaft, comprising a main shaft 1, characterized in that: external threaded collars 7 are respectively fixed at both ends of the main shaft 1;

[0023] The external threaded collar 7 is connected to the elongation component;

[0024] In this embodiment, the main shaft 1 is used as a basic transmission component, and external threaded collars 7 are provided at both ends thereof to provide a basis for connection and length adjustment;

[0025] The elongation assembly includes a circular ring 2, the external threaded collar 7 is threadedly connected to the circular ring 2, the outer end of each circular ring 2 is respectively fixedly connected to a conical ring 5, each conical ring 5 is respectively passed through by a round rod 4, the small end of the conical ring 5 is passed through by the round rod 4, and the large end of the conical ring 5 is fixed to the circular ring 2;

[0026] The outer end of each round rod 4 is fixedly connected to one end of the extension shaft 3;

[0027] The other end of each round rod 4 is fixedly connected to the small end of the conical block 9, and the large end of the conical block 9 is fixedly connected to the cross rod 10. Each cross rod 10 is inserted into the corresponding cross groove 8, and the cross groove 8 is arranged at both ends of the main shaft 1.

[0028] The conical ring 5 can press the conical block 9. When the circular ring 2 and the external threaded collar 7 are tightened, the conical ring 5 presses the conical block 9. The design of the conical ring 5 enables it to press the conical block 9 to ensure the stability of the connection.

[0029] In this embodiment, the extension components on both sides can be disassembled separately, and the required extension components can be determined according to needs to achieve the adjustment of the shaft length. When it is necessary to remove the extension component at one end, rotate the ring 2 to disengage it from the external threaded ring 7, move the tapered ring 5 away from the main shaft 1, and take the cross rod 10 out of the cross groove 8. When connection is required, insert the cross rod 10 into the cross groove 8 and tighten the ring 2.

[0030] Embodiment 2: Figure 2 As shown, the implementation of this embodiment will not affect the independent implementation of the first embodiment. In this embodiment, the extension assembly includes an end cap 6, and the externally threaded collar 7 is respectively threadedly connected to the end cap 6. The end cap 6 can seal the externally threaded collar 7 at both ends, which is more beautiful and is used when the main shaft 1 does not need to be lengthened.

[0031] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A metal shaft with adjustable length, comprising a main shaft (1), characterized in that: Externally threaded collars (7) are respectively fixed at both ends of the main shaft (1); The externally threaded collar (7) is connected to the elongated component; The elongated assembly comprises a circular ring (2), the external threaded collar (7) is threadedly connected to the circular ring (2), the outer end of each circular ring (2) is respectively fixedly connected to a conical ring (5), each conical ring (5) is respectively passed through by a round rod (4), the small end of the conical ring (5) is passed through by the round rod (4), and the large end of the conical ring (5) is fixed to the circular ring (2); The outer end of each round rod (4) is fixedly connected to one end of the extension shaft (3); the other end of each round rod (4) is fixedly connected to the small end of a conical block (9); the large end of the conical block (9) is fixedly connected to a cross rod (10); each cross rod (10) is inserted into a corresponding cross groove (8); and the cross groove (8) is arranged at both ends of the main shaft (1).

2. A length-adjustable metal shaft according to claim 1, characterized in that: The conical ring (5) can press the conical block (9). When the circular ring (2) and the external threaded sleeve ring (7) are tightened, the conical ring (5) presses the conical block (9).

3. The length-adjustable metal shaft according to claim 1, characterized in that: The elongated assembly comprises an end cap (6), and the external threaded collar (7) is respectively threadedly connected to the end cap (6).

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