Split type miniature shaft

Abstract

The utility model discloses a split type miniature shaft which comprises a first shaft rod, the bottom of the first shaft rod is detachably connected with a second shaft rod, the bottom of the second shaft rod is detachably connected with a third shaft rod, the bottom of the third shaft rod is detachably connected with a shaft seat, and the shaft seat is fixedly connected with the shaft rod. The bottoms of the first shaft rod and the second shaft rod are provided with first inserting grooves, and the tops of the second shaft rod and the third shaft rod can be inserted into the first inserting grooves in the bottoms of the first shaft rod and the second shaft rod correspondingly. The miniature shaft has the advantages that the second shaft rod, the first shaft rod and the third shaft rod are detachably installed, when miniature shafts with different lengths need to be used, the miniature shafts with the required lengths can be freely and flexibly assembled, the operation efficiency is greatly improved, and the miniature shafts with the required lengths can be conveniently and rapidly assembled through the arranged shaft seat. And double-head and single-head use of the miniature shaft can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of micro shafts, in particular to a split type micro shaft. Background Art

[0002] Micro shafts are relatively small and have high precision. Some of them are also called precision shafts, small shafts, shaft cores, rotor shafts, pins, rivets, guide rods, etc. They are used in many industries, such as the shafts in motors, the shafts in printers, copiers, scanners, the guide rod shafts in CD / DVD drives, the shafts in automotive parts, etc.

[0003] Existing micro shafts are usually manufactured as a whole, and the length of the manufactured micro shafts is fixed. When the micro shaft is installed and used on site, if the prepared length of the micro shaft does not match the actual need, the length of the micro shaft cannot be freely changed according to the situation on site, and it takes time to find or purchase a micro shaft of suitable length. Utility Model Content

[0004] The purpose of the utility model is to provide a split micro shaft to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a split micro-axis, comprising a first axis rod, the bottom of the first axis rod is detachably connected to the second axis rod, the bottom of the second axis rod is detachably connected to the third axis rod, the bottom of the third axis rod is detachably connected to the axis seat, the axis seat, the bottom of the first axis rod and the second axis rod are provided with a first slot, the tops of the second axis rod and the third axis rod can be respectively inserted into the first slots at the bottoms of the first axis rod and the second axis rod.

[0006] As a preferred solution of the present invention, the first shaft rod and the third shaft rod are detachably connected.

[0007] As a preferred solution of the utility model, first pin holes are opened inside the first shaft rod and the second shaft rod, second pin holes are opened on the tops of the second shaft rod and the third shaft rod, and elastic pins are inserted into the first pin holes and the second pin holes.

[0008] As a preferred solution of the utility model, a third pin hole is formed inside the third shaft rod, a fourth pin hole is formed inside the shaft seat, and elastic pins are inserted into the third pin hole and the fourth pin hole.

[0009] As a preferred solution of the utility model, a second slot is provided inside the third shaft rod, and the cylindrical end of the shaft seat can be inserted into the second slot.

[0010] Compared with the prior art, the beneficial effects of the utility model are: the utility model realizes that when micro-axes of different lengths are needed, the required length can be assembled freely and flexibly through the detachable installation between the second axis rod and the first axis rod and the third axis rod, thereby greatly improving the working efficiency, and the micro-axle can be used with both double heads and single heads through the set axis seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0013] Figure 3 It is a three-dimensional diagram of the utility model.

[0014] In the figure: 1, first shaft rod; 2, second shaft rod; 3, third shaft rod; 4, elastic pin; 5, first pin hole; 6, first slot; 7, second slot; 8, shaft seat; 9, second pin hole; 10, third pin hole; 11, fourth pin hole. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] See also Figures 1 to 3 The utility model provides a technical solution: a split micro-axis, including a first shaft rod 1, the bottom of the first shaft rod 1 is detachably connected to the second shaft rod 2, the bottom of the second shaft rod 2 is detachably connected to the third shaft rod 3, the bottom of the third shaft rod 3 is detachably connected to the shaft seat 8, when the cylindrical end of the shaft seat 8 is upward, the micro-axis is a single-head type, when the cylindrical end of the shaft seat 8 is downward, the micro-axis is a double-head type, the bottom of the first shaft rod 1 and the second shaft rod 2 are provided with a first slot 6, the first slot 6 can position the top convex ends of the second shaft rod 2 and the third shaft rod 3, the tops of the second shaft rod 2 and the third shaft rod 3 can be respectively inserted into the first slot 6 at the bottom of the first shaft rod 1 and the second shaft rod 2.

[0017] The first shaft rod 1 and the third shaft rod 3 are detachably connected, and the first shaft rod 1 and the third shaft rod 3 can be directly spliced ​​together without installing the second shaft rod 2 in the middle.

[0018] Among them, a first pin hole 5 is opened inside the first shaft rod 1 and the second shaft rod 2, a second pin hole 9 is opened on the top of the second shaft rod 2 and the third shaft rod 3, and an elastic pin 4 is inserted into the first pin hole 5 and the second pin hole 9, and the diameter of the elastic pin 4 is slightly larger than the diameter of the first pin hole 5 and the second pin hole 9.

[0019] Among them, a third pin hole 10 is opened inside the third shaft rod 3, a fourth pin hole 11 is opened inside the shaft seat 8, and elastic pins 4 are inserted into the third pin hole 10 and the fourth pin hole 11, and the diameter of the elastic pin 4 is slightly larger than the diameter of the third pin hole 10 and the fourth pin hole 11.

[0020] A second slot 7 is formed inside the third shaft rod 3 , and the cylindrical end of the shaft seat 8 can be inserted into the second slot 7 .

[0021] Specifically, when micro-axes of different lengths need to be used, a multi-section second axis rod 2 can be added between the first axis rod 1 and the third axis rod 3, and then the second axis rod 2 and the second axis rod 2 are mutually inserted and fixed by the elastic pin 4, and then the top end of the uppermost second axis rod 2 is inserted into the interior of the first slot 6 and inserted into the interior of the first pin hole 5 and the second pin hole 9 through the elastic pin 4 to be fixed, and then the top end of the third axis rod 3 is inserted into the interior of the lowermost second axis rod 2 and inserted into the interior of the first pin hole 5 and the second pin hole 9 through the elastic pin 4 to be fixed, and the assembly of micro-axes of different lengths can be completed. When the micro-axle needs to be used with two heads, the cylindrical end of the shaft seat 8 can be pulled out, and then the disc end of the shaft seat 8 is inserted into the interior of the second slot 7 and inserted into the interior of the third pin hole 10 and the fourth pin hole 11 through the elastic pin 4 to be fixed.

[0022] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0024] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0025] 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 split micro shaft, comprising a first shaft (1), characterized in that: The bottom of the first shaft (1) is detachably connected to the second shaft (2), the bottom of the second shaft (2) is detachably connected to the third shaft (3), the bottom of the third shaft (3) is detachably connected to an axle seat (8), the axle seat (8), the bottom of the first shaft (1) and the second shaft (2) is provided with a first slot (6), the top of the second shaft (2) and the third shaft (3) can be respectively inserted into the first slot (6) at the bottom of the first shaft (1) and the second shaft (2).

2. A split micro-axle according to claim 1, characterized in that: The first shaft (1) and the third shaft (3) are detachably connected.

3. The split micro-axle according to claim 1, characterized in that: A first pin hole (5) is provided inside the first shaft rod (1) and the second shaft rod (2), a second pin hole (9) is provided at the top of the second shaft rod (2) and the third shaft rod (3), and an elastic pin (4) is inserted inside the first pin hole (5) and the second pin hole (9).

4. A split micro-axle according to claim 3, characterized in that: A third pin hole (10) is provided inside the third shaft rod (3), a fourth pin hole (11) is provided inside the shaft seat (8), and elastic pins (4) are inserted into the third pin hole (10) and the fourth pin hole (11).

5. The split micro-axle according to claim 1, characterized in that: A second slot (7) is provided inside the third shaft rod (3), and the cylindrical end of the shaft seat (8) can be inserted into the second slot (7).

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