Rotating shaft with large-angle clearance

Abstract

The utility model discloses a rotating shaft with a large-angle clearance, which comprises a shaft center, a fixed side blade and two movable side blades, the shaft center is provided with a fixed blade mounting section and a movable blade mounting section, and the fixed side of the fixed side blade is circularly and tightly sleeved on the periphery of the fixed blade mounting section. The periphery of the corresponding movable blade installation section is rotationally sleeved with the movable side wrapping circle of each movable side blade. Each movable blade mounting section is provided with a clearance plane, and each movable side wrapping circle is provided with a wrapping circle plane part; trimming planes are respectively arranged at the left and right end edges of the corresponding clearance planes of each movable blade mounting section; the two movable side blades are the first movable side blade and the second movable side blade in sequence, the clearance angle of the first movable side blade is A, the clearance angle of the second movable side blade is B, and B is larger than A. The rotating shaft has the advantages of being novel in structural design and capable of achieving large-angle clearance, and therefore the rotating shaft can be opened more easily.

Description

Technical Field

[0001] The utility model relates to the technical field of rotating shafts, in particular to a rotating shaft with a large-angle virtual position. Background Art

[0002] The patent number is: ZL202121747639.8, and the patent name is: A Chinese utility model patent for a flat leather case support hinge, which discloses the following technical solutions, specifically: a flat leather case support hinge, including a flat body and a leather case assembly, the leather case assembly includes a fixed leather case and a movable leather case that cooperate with each other, and a circle-connected hinge structure is provided between the fixed leather case and the movable leather case; the circle-connected hinge structure includes a fixed roll sheet, a movable roll sheet and an axis, and the fixed roll sheet and the movable roll sheet are provided with an asymmetric There are three groups of distribution, the fixed roll disc is fixedly sleeved on the outside of the axis, the movable roll disc is rotatably sleeved on the outside of the axis, the fixed roll disc is glued to the fixed leather cover by glue, and the movable roll disc is glued to the movable leather cover by glue; the side of the fixed roll disc and the movable roll disc close to the axis are both set as a wrap-around structure; the end of the wrap-around structure on the movable roll disc is provided with a small plane structure, and the outer wall of the axis at the position of the movable roll disc is opened with a small plane groove used in conjunction with the small plane structure, and a small plane gap is formed between the small plane groove and the small plane structure.

[0003] It should be pointed out that during use, when the small plane structure of the movable roll disc and the small plane groove of the axis coincide with each other, the circular structure on the movable roll disc has no torque, and the small plane gap determines the size of the no-torque angle at 0°. The larger the small plane gap, the larger the virtual angle; when the circular surface structure of the axis contacts and abuts the small plane structure of the movable roll disc, torque will be generated.

[0004] It should be noted that for the aforementioned flat leather case support hinge, the facet gap determines the zero-torque angle at 0°. That is, the larger the facet gap, the larger the decoupling angle. Due to the small diameter of the shaft, the facet gap cannot be made very large while ensuring shaft strength. This makes it impossible for the hinge structure to achieve a large decoupling angle. Utility Model Content

[0005] The purpose of the utility model is to provide a rotating shaft with a large-angle virtual position to address the deficiencies of the existing technology. The rotating shaft with a large-angle virtual position has a novel structural design and can achieve a large-angle virtual position, thereby making it easier to open the rotating shaft.

[0006] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions.

[0007] A rotating shaft with a large-angle virtual position includes an axis, a fixed side blade, and two movable side blades. The edge of the fixed side blade is bent and curled to form a fixed side circle, and the edge of each movable side blade is bent and curled to form a movable side circle.

[0008] The axis is provided with a fixed blade installation section corresponding to the fixed side blade and a movable blade installation section corresponding to the movable side blade. The fixed side encircling circle of the fixed side blade is tightly sleeved on the outer periphery of the fixed blade installation section, and the movable side encircling circle of each movable side blade is respectively rotated and sleeved on the outer periphery of the corresponding movable blade installation section.

[0009] Each movable blade installation section of the axis is respectively provided with a virtual plane, each movable side circle is respectively provided with a circle plane portion, and the circle plane portion of each movable side circle is respectively spaced from the virtual plane of the corresponding movable blade installation section;

[0010] Each movable blade mounting section is provided with a cutting plane at the left end edge position and the right end edge position of the corresponding virtual plane;

[0011] The two movable side blades are the first movable side blade and the second movable side blade in sequence. The virtual position angle of the first movable side blade is A, and the virtual position angle of the second movable side blade is B, where B>A.

[0012] Wherein, the axis includes two shafts arranged axially at intervals, a connecting shaft is installed between the two shafts, and the two shafts are connected by the connecting shaft.

[0013] Wherein, the two ends of the connecting shaft are respectively provided with threaded holes opening axially outward, and the ends of each shaft rod are respectively provided with stud sections corresponding to the threaded holes on the corresponding sides, and the stud sections of each shaft rod are respectively screwed into the threaded holes on the corresponding sides.

[0014] Wherein, the fixed side circle of the fixed side blade is interference fit with the fixed blade installation section of the axis.

[0015] Wherein, the virtual angle A of the first movable side blade is 15°, and the virtual angle B of the second movable side blade is 50°.

[0016] Wherein, the axis, the fixed side blades, and the movable side blades are respectively metal parts.

[0017] Compared to the prior art, the present invention has the following beneficial effects. Specifically, the present invention provides cutting planes at the left and right edges of the virtual position plane, effectively increasing the virtual position angle by providing the cutting planes, thereby making it easier to open the shaft. Therefore, the large-angle virtual position shaft of the present invention has the advantages of a novel structural design and the ability to achieve a large-angle virtual position, thereby making it easier to open the shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings. However, the embodiments in the accompanying drawings do not constitute any limitation to the present invention.

[0019] Figure 1 It is a structural diagram of the present utility model.

[0020] Figure 2 It is an exploded schematic diagram of the present utility model.

[0021] Figure 3 It is a partial cross-sectional schematic diagram of the present utility model.

[0022] Figure 4 It is a structural schematic diagram of the axis of the utility model.

[0023] Figure 5 It is a cross-sectional schematic diagram of the axis of the utility model.

[0024] exist Figures 1 to 5 These include:

[0025] 1-axis; 11-fixed blade installation section; 12-movable blade installation section; 13-virtual position plane; 14-cutting edge plane; 15-axis rod; 151-stud section; 16-connecting shaft; 161-threaded hole; 2-fixed side blade; 31-first movable side blade; 32-second movable side blade; 4-fixed side circle; 5-movable side circle; 51-circular plane part. DETAILED DESCRIPTION

[0026] The present invention will be described below in conjunction with specific implementation methods.

[0027] Example 1, as Figure 1 and Figure 2 As shown, a rotating shaft with a large-angle virtual position includes a core 1, a fixed blade 2, and two movable blades. The edge of the fixed blade 2 is bent and curled to form a fixed side circle 4, and the edges of each movable blade are bent and curled to form a movable side circle 5. It should be noted that the core 1, fixed blade 2, and movable blades are all metal parts.

[0028] Among them, such as Figure 1 and Figure 2As shown, the shaft 1 is provided with a fixed blade mounting section 11 corresponding to the fixed blades 2, and a movable blade mounting section 12 corresponding to the movable blades. The fixed side enveloping circle 4 of the fixed blades 2 is tightly fitted around the outer periphery of the fixed blade mounting section 11, and the movable side enveloping circle 5 of each movable blade is rotated and fitted around the outer periphery of the corresponding movable blade mounting section 12. It should be explained that the fixed side enveloping circle 4 of the fixed blades 2 and the fixed blade mounting section 11 of the shaft 1 are interference fit.

[0029] Further, such as Figures 3 to 5 As shown, each movable blade mounting section 12 of the axis 1 is respectively provided with a virtual plane 13, and each movable side enclosing circle 5 is respectively provided with a circular plane portion 51, and the circular plane portion 51 of each movable side enclosing circle 5 is respectively spaced from the virtual plane 13 of the corresponding movable blade mounting section 12.

[0030] Furthermore, if Figures 3 to 5 As shown, each movable blade mounting section 12 is provided with a cutting plane 14 at the left end edge position and the right end edge position of the corresponding virtual plane 13 .

[0031] In addition, the two movable side blades are the first movable side blade 31 and the second movable side blade 32 , respectively. The virtual angle of the first movable side blade 31 is A, and the virtual angle of the second movable side blade 32 is B, where B>A.

[0032] It should be explained that, for each movable blade mounting segment 12, the side surfaces of the axis 1 except for the virtual plane 13 and the two cutting edge planes 14 are all circumferential surfaces; in the process of rotation of the movable side blade, when the circumferential surface of the movable blade mounting segment 12 contacts the circular plane portion 51 of the movable side circle 5, due to the blocking effect of the circular plane portion 51, the circumferential surface of the movable blade mounting segment 12 will produce abutment contact with the circular plane portion 51, thereby generating friction, and the friction force generates the torque when the movable side blade rotates; when the virtual plane 13 and the two cutting edge planes 14 rotate to the position of the circular plane portion 51, the movable blade mounting segment 12 will not produce abutment contact with the circular plane portion 51, and it is now in a virtual torque-free state, and the central angle corresponding to the multi-segment surface composed of the virtual plane 13 and the two cutting edge planes 14 is the virtual angle.

[0033] It should be noted that, in the first embodiment, cutting planes 14 are respectively provided at the left and right edge positions of the virtual plane 13 to effectively increase the virtual angle, thereby making it easier to open the rotating shaft.

[0034] In addition, when the rotating shaft with a large virtual position of the first embodiment is used, the fixed side blade 2 is fastened to the fixed part, and the two movable side blades are fastened to the movable part. During the rotation of the movable part relative to the fixed part, when the angle of the movable part relative to the fixed part is 0-A, the movable part is in a torque-free virtual position rotation state; when the angle of the movable part relative to the fixed part is AB, the first movable side blade 31 provides the first section of torque; when the angle of the movable part relative to the fixed part is greater than B, the first movable side blade 31 and the second movable side blade 32 jointly provide torque, which is the second section of torque. Therefore, the rotating shaft with a large virtual position of the first embodiment has two sections of torque when rotating.

[0035] In summary, it can be seen that, through the above structural design, the large-angle virtual position shaft of the first embodiment has the advantages of novel structural design and the ability to achieve a large-angle virtual position, thereby making it easier to open the shaft.

[0036] Example 2, as Figure 1 and Figure 2 As shown, the difference between the second embodiment and the first embodiment is that the shaft core 1 includes two shafts 15 arranged axially at intervals, a connecting shaft 16 is installed between the two shafts 15, and the two shafts 15 are connected by the connecting shaft 16.

[0037] Specifically, the two ends of the connecting shaft 16 are respectively provided with threaded holes 161 that are axially open outward, and the ends of each shaft rod 15 are respectively provided with stud sections 151 corresponding to the threaded holes 161 on the corresponding sides, and the stud sections 151 of each shaft rod 15 are respectively screwed into the threaded holes 161 on the corresponding sides.

[0038] Embodiment 3: The difference between this embodiment 3 and embodiment 1 is that the virtual angle A of the first movable side blade 31 is 15°, and the virtual angle B of the second movable side blade 32 is 50°.

[0039] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation methods and application scope. The content of this specification should not be understood as limiting the present invention.

Claims

1. A rotating shaft with a large-angle virtual position, comprising an axis (1), a fixed side blade (2), and two movable side blades, wherein the edge of the fixed side blade (2) is bent and curled to form a fixed side circle (4), and the edge of each movable side blade is bent and curled to form a movable side circle (5); The shaft (1) is provided with a fixed blade mounting section (11) corresponding to the fixed side blade (2) and a movable blade mounting section (12) corresponding to the movable side blade; the fixed side enveloping circle (4) of the fixed side blade (2) is fastened and sleeved on the periphery of the fixed blade mounting section (11); and the movable side enveloping circle (5) of each movable side blade is respectively rotatably sleeved on the periphery of the corresponding movable blade mounting section (12); Each movable blade mounting section (12) of the axis (1) is provided with a virtual plane (13), each movable side encircling circle (5) is provided with a circle encircling plane portion (51), and the circle encircling plane portion (51) of each movable side encircling circle (5) is spaced from the virtual plane (13) of the corresponding movable blade mounting section (12); Its characteristics are: Each movable blade mounting section (12) is provided with a cutting plane (14) at the left end edge position and the right end edge position of the corresponding virtual plane (13); The two movable side blades are sequentially a first movable side blade (31) and a second movable side blade (32); a virtual angle of the first movable side blade (31) is A, and a virtual angle of the second movable side blade (32) is B, where B>A.

2. The rotating shaft with large-angle virtual position according to claim 1, characterized in that: The axis (1) includes two shafts (15) arranged at intervals in the axial direction, a connecting shaft (16) is installed between the two shafts (15), and the two shafts (15) are connected via the connecting shaft (16).

3. The rotating shaft with large-angle virtual position according to claim 2, characterized in that: The two ends of the connecting shaft (16) are respectively provided with threaded holes (161) that open axially outwards, and the ends of the respective shaft rods (15) are respectively provided with stud sections (151) corresponding to the threaded holes (161) on the corresponding sides, and the stud sections (151) of the respective shaft rods (15) are respectively screwed into the threaded holes (161) on the corresponding sides.

4. The rotating shaft with large-angle virtual position according to claim 1, characterized in that: The fixed side enveloping circle (4) of the fixed side blade (2) is interference-fitted with the fixed blade mounting section (11) of the shaft (1).

5. The rotating shaft with large-angle virtual position according to claim 1, characterized in that: The virtual angle A of the first movable side blade (31) is 15°, and the virtual angle B of the second movable side blade (32) is 50°.

6. The rotating shaft with large-angle virtual position according to claim 1, characterized in that: The shaft (1), the fixed side blades (2), and the movable side blades are respectively metal parts.

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