Machine finger rotating shaft

Abstract

The utility model discloses a mechanical finger rotating shaft which comprises a base, a threaded hole, a limiting locking part, a square triangular tooth, a protective shell, a spring and a round pipe. A center rotating shaft is arranged on the upper end face of the base and is a round pipe, square triangular teeth are arranged on the upper end face of the base and arranged on the center rotating shaft in a sleeving mode, and another square triangular tooth is reversely buckled above the square triangular teeth. A spring is arranged above the square triangular teeth and arranged on the central rotating shaft in a sleeving mode, a protective shell is arranged above the square triangular teeth, and the protective shell is arranged on the outer side of the spring in a sleeving mode and limits the space of spring deformation. A limiting locking part is arranged at the top end of the center rotating shaft, the lower end face of the limiting locking part limits the position of the protection shell, resilience force is achieved when the square triangular teeth rotate mutually, and the device has the advantages of being simple in structure, stable, reliable, low in cost and convenient and fast to install.

Description

Technical Field

[0001] This utility model relates to the field of mechanical connection components technology, and more specifically, to an improvement of a mechanical finger shaft. Background Technology

[0002] In the current market for mechanical connection components, mechanical finger shafts are widely used as crucial elements for achieving rotational connections between parts. Most mechanical finger shafts on the market currently employ a central shaft structure with slots at the top and bottom. A locking mechanism, where a snap-fit ​​engages with the slot, locks the limiting spring. However, this structure has several drawbacks. Firstly, its structural design is complex, requiring high precision in the fit between components, which not only increases manufacturing difficulty but also leads to high production costs. Secondly, during long-term use, factors such as mechanical vibration and wear can cause the snap-fit ​​to loosen. Once the snap-fit ​​is loose, it cannot effectively lock the spring, causing the spring's locking function to fail. Ultimately, this results in the mechanical finger shaft malfunctioning, severely impacting the stability and lifespan of related equipment. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a mechanical finger swivel shaft, which has the advantages of simple structure, stability and reliability, low cost and convenient installation. It also solves the problems of complex structure, poor stability, easy failure of spring limit locking due to loosening of buckles after long-term use, high production cost and complicated installation of mechanical finger swivel shafts currently on the market.

[0005] (II) Technical Solution

[0006] To achieve the advantages of simple structure, stability, reliability, low cost and convenient installation, the specific technical solution adopted by this utility model is as follows: It includes a base 1, a threaded hole 11, a limiting locking part 2, a locking piece 21, a groove 22, a square triangular tooth 3, a male pointed convex tooth 31, a female pointed concave tooth 32, a through hole 33, a protective shell 4, a cap 41, a spring 5, and a central rotating shaft 6.

[0007] A central rotating shaft 6 is provided on the upper end face of the base 1. The central rotating shaft 6 is a round tube. A square triangular tooth 3 is provided on the upper end face of the base 1. The square triangular tooth 3 is sleeved on the central rotating shaft 6. Another square triangular tooth 3 is hooked on top of the square triangular tooth 3. The two square triangular teeth 3 mesh with each other and rotate relative to each other under the action of force. A spring 5 is provided above the square triangular tooth 3 and sleeved on the central rotating shaft 6. A protective shell 4 is provided above the square triangular tooth 3. The protective shell 4 is sleeved on the outside of the spring 5 and limits the space for the deformation of the spring 5.

[0008] The top end of the central rotating shaft 6 is provided with a limiting locking part 2. The lower end face of the limiting locking part 2 limits the position of the protective shell 4. The limiting locking part 2 is formed by the deformation of the circular tube wall of the central rotating shaft 6 under force. The limiting locking part 2 permanently limits the position of the protective shell 4 and limits the relative position of the spring 5. It has a rebound force when the square triangular teeth 3 rotate relative to each other.

[0009] Furthermore, the top of the central rotating shaft 6 is cross-divided to form a locking piece 21 and a slot 22. The locking piece 21 is deformed under reverse force and pressed against the upper end of the protective shell 4 to form a limiting locking part 2.

[0010] Furthermore, the square triangular tooth 3 includes a male pointed convex tooth 31 and a female pointed concave tooth 32, and the square triangular tooth 3 engages with each other in opposite directions.

[0011] Furthermore, the square triangular tooth 3 has a through hole 33 on its side.

[0012] Furthermore, the male pointed tooth 31 is triangular, and the female pointed tooth 32 is an inverted triangle, with the male pointed tooth 31 and the female pointed tooth 32 interlocking with each other.

[0013] Furthermore, the base 1 is provided with a threaded hole 11, and the base 1 is threadedly connected to the central rotating shaft 6, making installation simple and convenient for replacing the middle parts.

[0014] Furthermore, the top end of the central rotating shaft (6) is subjected to a downward force, and the circular tube is transformed into a disc-shaped limiting locking part (2).

[0015] Furthermore, a cap 41 is provided at the lower end of the protective shell 4.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the present invention provides a mechanical finger pivot shaft, which has the following beneficial effects:

[0018] 1. Simple and stable structure: It abandons the complex structure of traditional slots and buckles locking limit springs. The position of the protective shell 4 and the spring 5 is limited by the deformation of the circular tube wall of the central rotating shaft 6 under force to form the limiting locking part 2. The structure is simpler, the stability is significantly improved, and the failure problem caused by buckle loosening is avoided.

[0019] 2. Cost reduction: The use of complex components is reduced, lowering material and processing costs in the manufacturing process. Furthermore, the simple structure makes installation easier, saving installation time and labor costs.

[0020] 3. Extended service life: The stable structural design enables the finger shaft to maintain good working performance during long-term use, reducing the frequency of failures caused by structural problems, thereby extending the service life of the finger shaft. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of a mechanical finger shaft according to the present invention;

[0023] Figure 2 This is a front view of a mechanical finger shaft according to this utility model;

[0024] Figure 3 This is a utility model Figure 2 A sectional view;

[0025] Figure 4 This is a utility model Figure 2 Top view;

[0026] Figure 5 This is a utility model Figure 1 Schematic diagram of the structure of the middle limit locking part 2;

[0027] Figure 6 This is a schematic diagram of another embodiment of the present invention;

[0028] In the diagram: 1. Base, 11. Threaded hole, 2. Limiting and locking part, 21. Locking piece, 22. Groove, 3. Square triangular tooth, 31. Male pointed protruding tooth, 32. Female pointed concave tooth, 33. Through hole, 4. Protective shell, 41. Cap, 5. Spring, 6. Central rotating shaft. Detailed Implementation

[0029] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0030] According to an embodiment of the present invention, a mechanical finger swivel shaft is provided.

[0031] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-5 As shown, a mechanical finger rotating shaft according to an embodiment of the present utility model includes a base 1, a threaded hole 11, a limiting locking part 2, a locking piece 21, a groove 22, a square triangular tooth 3, a male pointed convex tooth 31, a female pointed concave tooth 32, a through hole 33, a protective shell 4, a cap 41, a spring 5, and a central rotating shaft 6.

[0032] First, connect the central rotating shaft 6 to the base 1 via the threaded hole 11 on the base 1 to ensure a secure connection.

[0033] Next, the square triangular tooth 3 with male pointed protrusion 31 is fitted onto the central rotating shaft 6, so that it is located on the upper end face of the base 1.

[0034] Then, another square triangular tooth 3 with a female concave tooth 32 is flipped onto the first square triangular tooth 3, so that the male convex tooth 31 and the female concave tooth 32 of both teeth mesh with each other. The male convex tooth 31 is triangular, and the female concave tooth 32 is an inverted triangle. The male convex tooth 31 and the female concave tooth 32 are interlocked.

[0035] Next, spring 5 is fitted onto the central rotating shaft 6, positioned above the two meshing square triangular teeth 3.

[0036] Then, the protective shell 4 is placed on the outside of the spring 5. At this time, the lower end cap 41 of the protective shell 4 plays a certain supporting and protective role.

[0037] Finally, a downward force is applied to the top of the central rotating shaft 6, causing the locking piece 21, which is formed by the cross-section of the top of the central rotating shaft 6, to deform and press against the upper end of the protective shell 4, forming the limiting locking part 2, thus completing the assembly of the machine finger rotating shaft.

[0038] like Figure 6 In another embodiment of the utility model shown, the top end of the central rotating shaft 6 is subjected to a downward force. Under the strong force, the thin wall of the circular tube deforms to form a disc-shaped limiting and locking part 2.

[0039] Working Principle: When the rotating shaft is subjected to an external force, the two meshing square triangular teeth 3 will rotate relative to each other under the force. During rotation, the spring 5 will be compressed or stretched. Since the protective shell 4 is fitted on the outside of the spring 5, it limits the deformation space of the spring 5, allowing the spring 5 to elastically deform in a predetermined manner. The limiting locking part 2 at the top of the central rotating shaft 6 is formed by the deformation of the circular tube wall of the central rotating shaft 6 under force. The limiting locking part 2 permanently limits the position of the protective shell 4, thereby ensuring the relative position stability of the spring 5. When the external force disappears, the spring 5 will return to its original shape, generating a rebound force, pushing the two square triangular teeth 3 to rotate in the opposite direction and return to the initial position. The through holes 33 opened on the side of the square triangular teeth 3 can reduce the weight of the component in some cases, or be used to pass through other auxiliary components in certain mechanical structures. The threaded hole 11 on the base 1 facilitates the installation and connection of the machine finger shaft with other equipment. The cap 41 at the lower end of the protective shell 4 not only supports the protective shell 4, but also prevents dust and other impurities from entering the machine finger shaft to a certain extent and affecting its normal operation.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A type of mechanical finger shaft, characterized in that: It includes a base (1), a threaded hole (11), a limiting locking part (2), a square triangular tooth (3), a protective shell (4), a spring (5), and a central rotating shaft (6); the upper end face of the base (1) is provided with a central rotating shaft (6), the central rotating shaft (6) is a round tube, the upper end face of the base (1) is provided with a square triangular tooth (3), the square triangular tooth (3) is sleeved on the central rotating shaft (6), another square triangular tooth (3) is hooked on the top of the square triangular tooth (3), the two square triangular teeth (3) mesh with each other, and rotate relative to each other under the action of force; the top of the square triangular tooth (3) is provided with The spring (5) is sleeved on the central rotating shaft (6). A protective shell (4) is provided above the square triangular teeth (3). The protective shell (4) is sleeved on the outside of the spring (5) to limit the space for the deformation of the spring (5). A limit locking part (2) is provided at the top of the central rotating shaft (6). The lower end face of the limit locking part (2) limits the position of the protective shell (4). The limit locking part (2) is formed by the deformation of the circular tube wall of the central rotating shaft (6) under force. The limit locking part (2) permanently limits the position of the protective shell (4) and limits the relative position of the spring (5). It has a rebound force when the square triangular teeth (3) rotate relative to each other.

2. The mechanical finger shaft according to claim 1, characterized in that: The top of the central rotating shaft (6) is cross-cut to form a locking piece (21) and a groove (22). The locking piece (21) is deformed by reverse force and pressed against the upper end of the protective shell (4) to form a limiting locking part (2).

3. A mechanical finger shaft according to claim 1, characterized in that: The square triangular tooth (3) includes a male pointed convex tooth (31) and a female pointed concave tooth (32), and the square triangular tooth (3) interlocks with each other.

4. A mechanical finger shaft according to claim 3, characterized in that: The square triangular tooth (3) has a through hole (33) on its side.

5. A mechanical finger shaft according to claim 3, characterized in that: The male pointed tooth (31) is triangular, and the female pointed tooth (32) is an inverted triangle. The male pointed tooth (31) and the female pointed tooth (32) are interlocked.

6. A mechanical finger shaft according to claim 1, characterized in that: The base (1) has a threaded hole (11) and is threadedly connected to the central rotating shaft (6).

7. A mechanical finger shaft according to claim 1, characterized in that: The top end of the central rotating shaft (6) is subjected to a downward force, and the circular tube is transformed into a disc-shaped limiting locking part (2).

8. A mechanical finger shaft according to claim 1, characterized in that: The lower end of the protective shell (4) is provided with a cap (41).

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