Fixed bushing structure capable of preventing winding
By setting multiple staggered openings in the arc sleeve of the fixed bushing and splitting them into elastically open and closed arc pieces, the deformation and material stopping problems caused by the winding of parts are solved, and higher consistency and neatness of parts are achieved.
Patent Information
- Application Number
- CN202422159164.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-03
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-09-03
AI Technical Summary
During the production process, existing fixed bushings are easily wound due to insertion into the other side's opening, resulting in deformation and shutdown of the clamping material.
A fixed bushing structure is designed to prevent winding, and by providing multiple staggered openings in the arc sleeve, it is divided into elastically open and closed first and second arc sheets to prevent winding between parts.
It effectively prevents winding deformation between parts and material shutdown problems, and improves the consistency and neatness of parts during the production process.
Smart Images
Figure CN222991945U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of hardware fixing parts, and in particular relates to a fixing shaft liner structure for preventing winding. Background Art
[0002] The fixed bushing is an important part for fixing the rotating shaft. Since the fixed bushing is usually installed by an automatic assembly line, high requirements are placed on the consistency and neatness of the parts.
[0003] like Figure 1 The figure shows a fixed shaft bushing 100 of a fan shaft. To meet the assembly function requirements, the part is usually provided with openings 101 extending to both ends along its axial direction to achieve elastic opening and closing and shaft assembly. However, during production, such as during the barrel plating process of the electroplating process, the parts are easily inserted into each other's openings, causing entanglement and deformation, such as Figure 2 As shown; and when the entangled parts enter the automatic assembly line of the next process, it will also cause material jamming and line stoppage. Utility Model Content
[0004] The utility model aims to provide a fixed shaft bushing structure for preventing winding, comprising an arc sleeve and a positioning base; the arc sleeve extends from a first side surface to a second side surface in an arc shape around an axis; the positioning base is transversely arranged between the first side surface and the second side surface and is respectively fixedly connected to the first side surface and the second side surface; the arc sleeve is provided with an opening running through its upper and lower ends to separate it into a first arc piece and a second arc piece; the openings include an upper opening section, an upper connecting section, a middle opening section, a lower connecting section and a lower opening section in sequence from top to bottom; the upper opening section extends downward from the upper end surface of the arc sleeve; the lower opening section extends upward from the lower end surface of the arc sleeve; the upper opening section and the lower opening section are arranged at intervals along the axis; the middle opening section is located on the arc surface between the upper opening section and the lower opening section, and the middle opening section and the upper opening section are arranged at intervals around the axis; the upper connecting section extends from the lower end of the upper opening section to the upper end of the middle opening section around the axis; the lower connecting section extends from the upper end of the lower opening section to the lower end of the middle opening section around the axis.
[0005] The utility model provides an opening on the arc sleeve to divide it into a first arc piece and a second arc piece that can be elastically opened and closed, so as to facilitate assembly with the rotating shaft; and the opening on the arc sleeve is staggered in multiple sections so that the opening cannot be stuck in the same type of parts, thereby preventing the parts from being entangled to cause deformation and material jamming and line stoppage. BRIEF DESCRIPTION OF THE DRAWINGS
[0006] Figure 1 The figure is a schematic diagram of the structure of a fixed bushing of the background technology.
[0007] Figure 2Schematic diagram of the winding of the fixed bushing in the background art.
[0008] Figure 3 and Figure 4 Schematic diagrams of different angles of the first embodiment of the present utility model.
[0009] Figure 5 Front view of the first embodiment of the present utility model.
[0010] Figure 6 Exploded view of the first arc piece and the second arc piece of the first embodiment of the present utility model.
[0011] Figure 7 Bottom view of the first embodiment of the present utility model.
[0012] Figure 8 Schematic diagram of the structure of the second embodiment.
[0013] Figure 9 Schematic diagram of the structure of the rectangular metal sheet of the second embodiment. Detailed implementation manners
[0014] As follows, in combination with the attached Figure 3-9 , the solution of the present application will be further described:
[0015] Embodiment 1
[0016] Referring to the attached Figure 3-7 , a fixed bushing structure for preventing winding includes an arc sleeve portion 1 and a positioning base portion 2; the arc sleeve portion 1 extends in an arc shape from a first side surface 111 around an axis L to a second side surface 121; the positioning base portion 2 is horizontally arranged between the first side surface 111 and the second side surface 121 and is fixedly connected to the first side surface 111 and the second side surface 121 respectively; an opening 3 penetrating through the upper and lower ends of the arc sleeve portion 1 is provided on the arc sleeve portion 1 to divide it into a first arc piece 11 and a second arc piece 12.
[0017] The opening 3 successively includes an upper opening section 31, an upper connection interface section 32, a middle opening section 33, a lower connection interface section 34, and a lower opening section 35 from top to bottom. The upper opening section 31 extends downward from the upper end face of the arc sleeve portion 1; the lower opening section 35 extends upward from the lower end face of the arc sleeve portion 1; the upper opening section 31 and the lower opening section 35 are arranged at intervals along the axis L; the middle opening section 33 is located on the arc surface between the upper opening section 31 and the lower opening section 35, and the middle opening section 33 is arranged at intervals around the axis L with the upper opening section 31; that is, the middle opening section 33 is staggeredly arranged with the upper opening section 31. Similarly, in the extending direction of the axis L of the lower opening section 35 and the upper opening section 31, the middle opening section 33 and the lower opening section 35 are also staggeredly arranged. The upper connection interface section 32 extends around the axis L from the lower end of the upper opening section 31 to the upper end of the middle opening section 33; the lower connection interface section 34 extends around the axis L from the upper end of the lower opening section 35 to the lower end of the middle opening section 33.
[0018] In this technical solution, an opening 3 is provided on the arc sleeve portion 1, which is divided into a first arc piece 11 and a second arc piece 12 that can be elastically opened and closed, so as to facilitate the assembly with the rotating shaft; and the opening 3 on the arc sleeve portion 1 is arranged in multiple staggered segments, so that the opening 3 cannot be stuck into the same type of parts, preventing problems such as deformation and material jamming and line stoppage caused by entanglement between parts.
[0019] The positioning base 2 includes a connecting plate 21 and support plates 22 respectively arranged on both sides of the connecting plate 21; the two support plates 22 extend obliquely outward and are arranged in a shape of an eight-character; on the first side 111 and the first arc piece 11, and on the second side 121 and the second arc piece 12; the first side 111 and the second side 121 are respectively fixedly connected to the two support plates 22. The positioning base 2 plays a role in connecting and fixing the first arc piece 11 and the second arc piece 12; the connecting plate 21 can be used to connect with other components; the support plates 22 play a role in positioning and supporting, which is convenient for fixing.
[0020] A plurality of rectangular holes 4 are provided on the arc sleeve portion 1 and are distributed at intervals around the axis L; it is convenient to drip lubricating oil and dissipate heat for the rotating shaft inside the arc sleeve portion 1. The shape of the middle opening section 33 is the same as that of the rectangular hole 4, which is equivalent to a rectangular hole 4 and does not require additional processing.
[0021] The widths of the upper connection interface section 32 and the lower connection interface section 34 in the direction along the axis L are 0.1 - 0.3 cm, preferably 0.2 cm, so that the upper opening section 31, the middle opening section 33, and the lower opening section 35 are relatively compact, and further prevent parts from being stuck by reducing the connection gap.
[0022] During processing, first cut out the first arc piece 11 and the second arc piece 12 on the metal sheet. Among them, a concave portion 112 is cut on one side of the first arc piece 11, and a convex portion 122 is cut on one side of the second arc piece 12. Then, punch the first arc piece 11 and the second arc piece 12 into a curvature and then fix them on the formed positioning base 2. The concave portion 112 and the convex portion 122 face each other, and the spaced space between the first arc piece 11 and the second arc piece 12 is the opening 3. The distance between the concave portion and the convex portion is the middle opening section 33.
[0023] Embodiment 2:
[0024] Refer to Figure 8-9 , a fixed bushing structure for preventing entanglement, which is different from the first embodiment described above in that the widths of the upper opening section 31, the middle opening section 33, and the lower opening section 35 in the direction around the axis L are equal.
[0025] It is possible to cut out the first arc piece 11 and the second arc piece 12 on a rectangular metal sheet 5, which is convenient for laying out the cutting line 51 ( Figure 8 the dotted line in), reducing the waste of scrap and making full use of the material.
[0026] The above preferred implementation manners should be regarded as illustrative examples of the implementation manners of the application solution. Any technical deductions, substitutions, improvements, etc. that are identical, similar to or based on the application solution should be regarded as within the protection scope of this patent.
Claims
1. A fixed bushing structure for preventing winding, comprising an arc sleeve and a positioning base; the arc sleeve extends from a first side surface to a second side surface in an arc shape around an axis; the positioning base is transversely arranged between the first side surface and the second side surface and is respectively fixedly connected to the first side surface and the second side surface; the arc sleeve is provided with openings penetrating through its upper and lower ends to separate it into a first arc piece and a second arc piece; characterized in that: The opening includes, from top to bottom, an upper opening section, an upper connecting section, a middle opening section, a lower connecting section and a lower opening section; The upper opening section extends downward from the upper end surface of the circular arc sleeve; the lower opening section extends upward from the lower end surface of the circular arc sleeve; the upper opening section and the lower opening section are spaced apart along the axis; The middle opening section is located on the arc surface between the upper opening section and the lower opening section, and the middle opening section and the upper opening section are spaced apart around the axis; The upper joint section extends from the lower end of the upper opening section around the axis to the upper end of the middle opening section; The lower connecting section extends from the upper end of the lower opening section around the axis to the lower end of the middle opening section.
2. The anti-winding fixed bushing structure according to claim 1, characterized in that: The positioning base includes a connecting plate and supporting plates disposed on both sides of the connecting plate; the two supporting plates extend outwardly at an angle and are disposed in an eight-shaped shape; The first side surface is on the first arc piece, and the second side surface is on the second arc piece; the first side surface and the second side surface are respectively fixedly connected to two supporting plates.
3. The anti-winding fixed bushing structure according to claim 1, characterized in that: The arc sleeve is provided with a plurality of rectangular holes spaced apart around the axis; The shape of the middle opening section is the same as that of the rectangular hole.
4. The anti-winding fixed bushing structure according to claim 1, characterized in that: The width of the upper connecting section and the lower connecting section along the axial direction is 0.1-0.3 cm.
5. The anti-winding fixed bushing structure according to claim 1, characterized in that: The widths of the upper opening section, the middle opening section and the lower opening section in the direction around the axis are equal.