Double-shaft three-section type switching rotating shaft

Abstract

The utility model discloses a double-shaft three-section type switching rotating shaft which comprises a first support, a second support, a first shaft center and a second shaft center, and a connecting piece set between the first shaft center and the second shaft center comprises a first connecting piece and a second connecting piece. The first connecting piece is slidably provided with a sliding block, and the sliding block is provided with a first convex part and a second convex part. A switching wheel is slidably mounted on the second connecting piece; the first axis is sleeved with a first angle block, and the second axis is sleeved with a second angle block. A first straight groove and a second straight groove which are communicated with each other and are used for inserting the second convex part of the sliding block are formed in the outer circumferential surface of the second angle block; the sliding block and the switching wheel are located between the first connecting piece and the second connecting piece. A first groove and a second groove are formed in the end, close to one side of the switching wheel, of the first angle block, and a third groove is formed in the end, close to one side of the switching wheel, of the second angle block. By means of the structural design, the LED lamp has the advantages of being novel in design, good in structural compactness and convenient to assemble.

Description

Technical Field

[0001] This invention relates to the field of dual-axis rotating shaft technology, and particularly to a dual-axis three-section switching rotating shaft. Background Technology

[0002] A dual-axis hinge, also known as a dual-axis pivot, is a connecting element that allows for mutual rotation. It is mainly used between rotating parts and their base. Dual-axis pivots are widely used in various digital products and electronic devices, such as laptops.

[0003] Chinese invention patent application number 202311068165.8, entitled "A hinge assembly for lifting laptop feet," discloses the following technical solution: A hinge assembly for lifting laptop feet includes a screen-end bracket, a system-end bracket, a screen-end side axis fastened to the screen-end bracket, and a system-end side axis fastened to the system-end bracket. The screen-end side axis and the system-end side axis are arranged parallel to each other at intervals. A connecting bracket assembly is installed between the screen-end side axis and the system-end side axis. The frame assembly includes a first bracket, a second bracket, and a third bracket arranged sequentially. One end of each of the first, second, and third brackets is rotatably fitted onto the screen-side axis, and the other end of each is rotatably fitted onto the system-side axis. The second bracket is slidably mounted with a track column that slides along the axis of the screen-side axis and the system-side axis. The track column is located between the screen-side axis and the system-side axis, and has a screen-side protrusion protruding towards the screen-side axis and a system-side protrusion protruding towards the system-side axis. The system end protrusion protrudes from the axis side; the screen end axis is fitted with a slanted groove post located between the first and second supports and rotating synchronously with the screen end axis; the system end axis is fitted with a straight groove post located between the first and second supports and rotating synchronously with the system end axis; the outer circumferential surface of the slanted groove post has a spirally extending slanted groove, and the outer circumferential surface of the straight groove post has a first straight groove and a second straight groove that are interconnected and extend circumferentially; the screen end protrusion extends into the spiral groove of the slanted groove post; the screen end axis is also fitted with a slanted groove located between the first and second supports and rotating synchronously with the system end axis. A screen-side switching wheel is located between the second and third supports and rotates synchronously with the screen-side axis. A system-side switching wheel is mounted on the system-side axis and is located between the second and third supports and rotates synchronously with the system-side axis. The screen-side switching wheel has a first groove and a second groove arranged circumferentially at intervals on its circumferential surface, and the system-side switching wheel has a switching wheel groove on its circumferential surface. A moving wheel is slidably mounted on the third support and slides radially along the screen-side axis and the system-side axis. The moving wheel is located between the screen-side switching wheel and the system-side switching wheel.

[0004] Specifically, the rotation process of the aforementioned rotating shaft assembly includes the following:

[0005] 1. First stage of rotation process: The system end side protrusion slides in the first straight groove of the straight groove column, one end of the moving wheel extends into the first groove of the screen end side switching wheel, and the other end of the moving wheel abuts against the circumferential surface of the system end side switching wheel. At this time, because the moving wheel jams the screen end side switching wheel, the screen end side axis cannot rotate relative to the connecting bracket assembly, while the connecting bracket assembly can rotate relative to the system end side axis. When the system end side protrusion of the track column slides to the end position of the first straight groove, due to the limiting effect of the track column, the connecting bracket assembly cannot continue to rotate relative to the system end side axis.

[0006] 2. Second stage of rotation: The switching wheel of the system-side switching wheel is aligned with the moving wheel. At this time, the end of the moving wheel enters the groove of the switching wheel of the system-side switching wheel, and the moving wheel exits the first groove of the screen-side switching wheel. At this time, the limiting effect of the moving wheel on the screen-side switching wheel disappears, and the screen-side axis can rotate relative to the connecting bracket assembly. During this process, one end of the moving wheel extends into the groove of the switching wheel of the system-side switching wheel, and the other end of the moving wheel abuts against the circumferential surface of the screen-side switching wheel. Under the driving action of the spiral groove of the screen-side switching wheel on the track column, the track column moves relative to the second bracket, and the system-side protrusion of the track column slides from the end of the first straight groove of the straight groove column into the second straight groove. That is, the system-side protrusion of the track column switches from the first straight groove of the straight groove column to the second straight groove. When the screen-side protrusion of the track column reaches the end of the spiral groove of the inclined groove column, and the second groove of the screen-side switching wheel is aligned with the end of the moving wheel, the track column limits the inclined groove column.

[0007] 3. The third stage of rotation: The system end side protrusion moves in the second straight groove of the straight groove column. One end of the moving wheel extends into the second groove of the screen end side switching wheel, and the other end of the moving wheel abuts against the circumferential surface of the system end side switching wheel. At this time, because the moving wheel jams the screen end side switching wheel, the screen end side axis cannot rotate relative to the connecting bracket assembly, while the connecting bracket assembly can rotate relative to the system end side axis. When the system end side protrusion of the track column slides to the end position of the second straight groove, due to the limiting effect of the track column, the connecting bracket assembly cannot continue to rotate relative to the system end side axis.

[0008] It should be noted that the hinge assembly for the aforementioned laptop lifting feet has the following defects: the inclined slot column and the screen-side switching wheel are two independent parts, and they are separated by a bracket; the straight slot column and the system-side switching wheel are two independent parts, and they are separated by a bracket; for the aforementioned split-structure design of the inclined slot column and screen-side switching wheel, and the split-structure design of the straight slot column and system-side switching wheel, there are problems with poor structural compactness and numerous assembly steps. Utility Model Content

[0009] The purpose of this utility model is to provide a dual-axis three-section switching shaft that addresses the shortcomings of existing technologies. This dual-axis three-section switching shaft has a novel design, a compact structure, and is easy to assemble.

[0010] To achieve the above objectives, this utility model is implemented through the following technical solution.

[0011] A dual-axis, three-section switching shaft includes a first bracket, a second bracket, a first shaft fastened to the first bracket, and a second shaft fastened to the second bracket. The first shaft and the second shaft are arranged parallel to each other at intervals. A connecting assembly is installed between the first shaft and the second shaft. The connecting assembly includes a first connector and a second connector. One end of the first connector and the second connector are rotatably fitted onto the first shaft, and the other end of the first connector and the second connector are rotatably fitted onto the second shaft.

[0012] The first connector is slidably mounted with a slider that slides along the axial direction of the first axis and the second axis. The slider is located between the first axis and the second axis. The slider is provided with a first protrusion protruding towards the first axis and a second protrusion protruding towards the second axis. The second connector is slidably mounted with a switching wheel that slides radially along the first axis and the second axis.

[0013] The first axis is fitted with a first angle block that rotates synchronously with the first axis, and the second axis is fitted with a second angle block that rotates synchronously with the second axis; the first angle block has an inclined groove for the first protrusion of the slider to be inserted into, and the outer circumferential surface of the second angle block has a first straight groove and a second straight groove that are interconnected and for the second protrusion of the slider to be inserted into;

[0014] The slider and the switching wheel are located between the first connector and the second connector, respectively;

[0015] The first angle block has a first groove and a second groove at the end near the switching wheel, and the first groove and the second groove are arranged circumferentially along the circumferential surface of the first angle block; the second angle block has a third groove at the end near the switching wheel.

[0016] The first connector has a first positioning part protruding towards the second connector in the middle. The first positioning part has an axial movable groove that opens towards the second connector and has a shape that matches the shape of the slider. The slider is slidably installed in the axial movable groove.

[0017] The second connector has a second positioning part protruding toward the first connector in the middle. The second positioning part has a radial movable groove, and the switching wheel is slidably installed in the radial movable groove.

[0018] The first shaft and the second shaft are respectively flat in shape. The core of the first angle block is provided with a first flat hole that is flat in shape and axially penetrates it. The core of the second angle block is provided with a second flat hole that is flat in shape and axially penetrates it.

[0019] The first angle block is fitted onto the outer periphery of the first shaft through the first flat hole to prevent rotation, and the second angle block is fitted onto the outer periphery of the second shaft through the second flat hole to prevent rotation.

[0020] The dual-axis three-section switching shaft has four position states, namely 0-degree position state, middle first position state, middle second position state, and 360-degree position state.

[0021] The rotation from the 0-degree position to the middle first position is achieved through the first rotation process, the rotation from the middle first position to the middle second position is achieved through the second rotation process, and the rotation from the middle second position to the 360-degree position is achieved through the third rotation process.

[0022] Compared with the prior art, this utility model has the following advantages: Specifically, the slider, switching wheel, first angle block, and second angle block of this utility model are respectively located between the first connecting member and the second connecting member. The first angle block can simultaneously cooperate with the slider and the switching wheel, and the second angle block can also simultaneously cooperate with the slider and the switching wheel. Compared with the prior art, the dual-axis three-section switching shaft structure of this utility model is simpler, more compact, and easier to assemble. Therefore, this utility model has the advantages of novel design, good structural compactness, and convenient assembly. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention.

[0024] Figure 1 This is a schematic diagram of the structure of this utility model.

[0025] Figure 2 This is an exploded view of the present invention.

[0026] Figure 3 This is a partial structural schematic diagram of the present invention.

[0027] Figure 4 This is a partial cross-sectional schematic diagram of the present invention.

[0028] Figure 5 This is a schematic diagram of the structure of the first angle block of this utility model.

[0029] Figure 6This is a schematic diagram of the structure of the second angle block of this utility model.

[0030] Figure 7 This is a schematic diagram of the installation of the slider of this utility model.

[0031] Figure 8 This is a schematic diagram of the installation of the switching wheel of this utility model.

[0032] Figure 9 This is a schematic diagram of the structure of the present invention in the 0-degree position state.

[0033] Figure 10 This is a structural schematic diagram of the present invention in the first intermediate position.

[0034] Figure 11 This is a structural schematic diagram of the present invention in the middle second position state.

[0035] Figure 12 This is a structural diagram of the present invention in a 360-degree position.

[0036] exist Figures 1 to 12 This includes:

[0037] 11-First bracket; 12-First shaft; 21-Second bracket; 22-Second shaft; 31-First connector; 311-First positioning part; 312-Axial movable groove; 32-Second connector; 321-Second positioning part; 322-Radial movable groove; 4-Slider; 41-First protrusion; 42-Second protrusion; 5-Switching wheel; 61-First angle block; 611-Inclined groove; 612-First groove; 613-Second groove; 614-First flat hole; 62-Second angle block; 621-First straight groove; 622-Second straight groove; 623-Third groove; 624-Second flat hole. Detailed Implementation

[0038] The present invention will now be described in conjunction with specific embodiments.

[0039] Example 1, as Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, a dual-axis three-section switching shaft includes a first bracket 11, a second bracket 21, a first shaft 12 fastened to the first bracket 11, and a second shaft 22 fastened to the second bracket 21. The first shaft 12 and the second shaft 22 are arranged parallel to each other at intervals. A connecting assembly is installed between the first shaft 12 and the second shaft 22. The connecting assembly includes a first connector 31 and a second connector 32. One end of the first connector 31 and the second connector 32 are respectively rotatably fitted onto the first shaft 12, and the other end of the first connector 31 and the second connector 32 are respectively rotatably fitted onto the second shaft 22.

[0040] Among them, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 7 , Figure 8 As shown, the first connector 31 is slidably mounted with a slider 4 that slides along the axial direction of the first axis 12 and the second axis 22. The slider 4 is located between the first axis 12 and the second axis 22. The slider 4 is provided with a first protrusion 41 protruding towards the first axis 12 and a second protrusion 42 protruding towards the second axis 22. The second connector 32 is slidably mounted with a switching wheel 5 that slides radially along the first axis 12 and the second axis 22.

[0041] Furthermore, such as Figures 1 to 6 As shown, the first shaft 12 is fitted with a first angle block 61 that rotates synchronously with the first shaft 12, and the second shaft 22 is fitted with a second angle block 62 that rotates synchronously with the second shaft 22; the first angle block 61 has a slanted groove 611 for the first protrusion 41 of the slider 4 to be inserted, and the outer circumferential surface of the second angle block 62 has a first straight groove 621 and a second straight groove 622 that are interconnected and for the second protrusion 42 of the slider 4 to be inserted.

[0042] Furthermore, such as Figures 1 to 4 As shown, slider 4 and switching wheel 5 are located between the first connector 31 and the second connector 32, respectively.

[0043] In addition, such as Figure 5 and Figure 6 As shown, the first angle block 61 has a first groove 612 and a second groove 613 at the end near the switching wheel 5. The first groove 612 and the second groove 613 are arranged circumferentially along the circumferential surface of the first angle block 61. The second angle block 62 has a third groove 623 at the end near the switching wheel 5.

[0044] It should be noted that this dual-axis, three-stage switching shaft has four position states, which are sequentially the 0-degree position state (e.g., ...). Figure 9 As shown), the state of the first intermediate position (as shown) Figure 10As shown), the second position state in the middle (as shown) Figure 11 (as shown), 360-degree position status (such as) Figure 12 (As shown); the rotation from the 0-degree position to the middle first position is achieved through the first rotation process, the rotation from the middle first position to the middle second position is achieved through the second rotation process, and the rotation from the middle second position to the 360-degree position is achieved through the third rotation process.

[0045] The following description, using the specific switching and rotation process, illustrates the dual-axis, three-segment switching shaft of Embodiment 1.

[0046] Step 1, as follows Figure 9 As shown, when the dual-axis three-section switching shaft is in the 0-degree position, the first bracket 11 and the second bracket 21 are parallel, and at this time the end of the switching wheel 5 is aligned and inserted into the first groove 612 of the first angle block 61, while the other end of the switching wheel 5 is offset from the third groove 623 of the second angle block 62.

[0047] Step 2: During the first rotational movement, when the dual-axis three-section switching shaft is switched from the 0-degree position to the middle first position, the end of the switching wheel 5 is aligned and inserted into the first groove 612 of the first angle block 61. At this time, the switching wheel 5 stops the rotation of the first angle block 61, and the first bracket 11 and the first shaft 12 cannot rotate. The second bracket 21 and the second shaft 22 can rotate. During this process, the second protrusion 42 of the slider 4 slides in the first straight groove 621 of the second angle block 62. Figure 10 As shown, when the second protrusion 42 of the slider 4 slides to the end position of the first straight groove 621, the end of the first straight groove 621 blocks the second protrusion 42 and prevents the second bracket 21 and the second shaft 22 from continuing to rotate. At this time, the dual-axis three-section switching shaft switches to the middle first position.

[0048] Step 3: When the dual-axis three-section switching shaft is switched to the first intermediate position, the third groove 623 of the second angle block 62 is aligned with the end of the switching wheel 5. Rotating the first bracket 11 and the second shaft 22 causes the first angle block 61 to rotate synchronously with the first shaft 12, thereby causing the first groove 612 of the first angle block 61 to deviate from the end of the switching wheel 5. Under the pushing action of the first angle block 61, the switching wheel 5 is aligned and inserted into the third groove 623 of the second angle block 62. At this time, the switching wheel 5 stops the rotation of the second angle block 62, and the second bracket 21 and the second shaft 22 cannot rotate. When rotating the first bracket 11 and the first shaft 12, the inclined groove 611 of the first angle block 61 drives the slider 4 to move, causing the second protrusion 42 of the slider 4 to slide from the end of the first straight groove 621 into the second straight groove 622, that is, the second protrusion 42 of the slider 4 switches from the first straight groove 621 to the second straight groove 622. Figure 11 As shown, when the first protrusion 41 of the slider 4 reaches the end of the inclined groove 611 of the first angle block 61, the end of the inclined groove 611 blocks and limits the first protrusion 41 of the slider 4. At this time, the slider 4 stops the rotation of the first angle block 61, and the first bracket 11 and the first shaft 12 cannot continue to rotate. At this time, the second rotation action is completed, and the dual-axis three-stage switching shaft reaches the middle second position state.

[0049] Step 4: When the dual-axis three-section switching shaft reaches the middle second position, the second groove 613 of the first angle block 61 is aligned with the end of the switching wheel 5, and the second protrusion 42 moves within the second straight groove 622 of the second angle block 62. Rotating the second bracket 21 and the second shaft 22 causes the second angle block 62 to rotate synchronously with the second shaft 22, thereby causing the third groove 623 of the second angle block 62 to deviate from the end of the switching wheel 5. Under the pushing action of the second angle block 62, the switching wheel 5 is aligned and inserted into the second groove 613 of the first angle block 61. At this time, the switching wheel 5 stops the rotation of the first angle block 61 and prevents the first bracket 11 and the first shaft 12 from rotating. Figure 12 As shown, when the second protrusion 42 of the slider 4 slides to the end position of the second straight groove 622, the end of the second straight groove 622 blocks and limits the second protrusion 42. At this time, the second bracket 21 and the second shaft 22 cannot continue to rotate, and the dual-axis three-stage switching shaft completes the third stage of rotation. The dual-axis three-stage switching shaft reaches the 360-degree position. In the 360-degree position, the first bracket 11 and the second bracket 21 are parallel.

[0050] It should be noted that when performing the rotation operation on the dual-axis three-section switching shaft of this embodiment, the operation can be performed in reverse according to steps 1-4 above.

[0051] It should be emphasized that in this embodiment, the slider 4, the switching wheel 5, the first angle block 61, and the second angle block 62 are located between the first connecting member 31 and the second connecting member 32, respectively. The first angle block 61 can cooperate with the slider 4 and the switching wheel 5 at the same time, and the second angle block 62 can also cooperate with the slider 4 and the switching wheel 5 at the same time. Compared with the prior art, the dual-axis three-section switching shaft structure of this embodiment is simpler, more compact, and easier to assemble.

[0052] In summary, the dual-axis three-section switching shaft of this embodiment has the advantages of novel design, compact structure and convenient assembly through the above structural design.

[0053] Example 2, as Figure 7 As shown, the difference between this embodiment 2 and embodiment 1 is that: the middle part of the first connector 31 is provided with a first positioning part 311 protruding towards the second connector 32. The first positioning part 311 has an axial movable groove 312 that opens towards the second connector 32 and has a shape consistent with the shape of the slider 4. The slider 4 is slidably installed in the axial movable groove 312.

[0054] Example 3, as Figure 8 As shown, the difference between this embodiment 3 and embodiment 1 is that: the middle part of the second connecting member 32 is provided with a second positioning part 321 protruding toward the side of the first connecting member 31, the second positioning part 321 is provided with a radial movable groove 322, and the switching wheel 5 is slidably installed in the radial movable groove 322.

[0055] Example 4, as Figure 5 and Figure 6 As shown, the difference between this embodiment 4 and embodiment 1 is that the first axis 12 and the second axis 22 are respectively flat, the core of the first angle block 61 is provided with a first flat hole 614 that is flat and axially penetrates, and the core of the second angle block 62 is provided with a second flat hole 624 that is flat and axially penetrates.

[0056] The first angle block 61 is fitted to the outer periphery of the first shaft 12 through the first flat hole 614 to prevent rotation, and the second angle block 62 is fitted to the outer periphery of the second shaft 22 through the second flat hole 624 to prevent rotation.

[0057] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A dual-axis three-section switching shaft, comprising a first bracket (11), a second bracket (21), a first shaft (12) fastened to the first bracket (11), and a second shaft (22) fastened to the second bracket (21), wherein the first shaft (12) and the second shaft (22) are arranged parallel to each other at intervals; a connecting assembly is provided between the first shaft (12) and the second shaft (22), the connecting assembly comprising a first connector (31) and a second connector (32), wherein one end of the first connector (31) and the second connector (32) is rotatably fitted onto the first shaft (12), and the other end of the first connector (31) and the second connector (32) is rotatably fitted onto the second shaft (22); The first connector (31) is slidably mounted with a slider (4) that slides along the axial direction of the first axis (12) and the second axis (22). The slider (4) is located between the first axis (12) and the second axis (22). The slider (4) is provided with a first protrusion (41) protruding towards the first axis (12) and a second protrusion (42) protruding towards the second axis (22). The second connector (32) is slidably mounted with a switching wheel (5) that slides radially along the first axis (12) and the second axis (22). The first axis (12) is fitted with a first angle block (61) that rotates synchronously with the first axis (12), and the second axis (22) is fitted with a second angle block (62) that rotates synchronously with the second axis (22); the first angle block (61) has a slanted groove (611) for the first protrusion (41) of the slider (4) to be inserted, and the outer circumferential surface of the second angle block (62) has a first straight groove (621) and a second straight groove (622) that are interconnected and for the second protrusion (42) of the slider (4) to be inserted; Its features are: The slider (4) and the switching wheel (5) are located between the first connector (31) and the second connector (32), respectively; The first angle block (61) has a first groove (612) and a second groove (613) at the end near the switching wheel (5), and the first groove (612) and the second groove (613) are arranged circumferentially along the circumferential surface of the first angle block (61); the second angle block (62) has a third groove (623) at the end near the switching wheel (5).

2. The dual-axis three-section switching shaft according to claim 1, characterized in that: The first connector (31) has a first positioning part (311) protruding toward the second connector (32) in the middle. The first positioning part (311) has an axial movable groove (312) that opens toward the second connector (32) and has a shape that matches the shape of the slider (4). The slider (4) is slidably installed in the axial movable groove (312).

3. The dual-axis three-section switching shaft according to claim 1, characterized in that: The second connector (32) has a second positioning part (321) protruding toward the first connector (31) in the middle. The second positioning part (321) has a radial movable groove (322), and the switching wheel (5) is slidably installed in the radial movable groove (322).

4. The dual-axis three-section switching shaft according to claim 1, characterized in that: The first shaft (12) and the second shaft (22) are respectively flat in shape. The core of the first angle block (61) is provided with a first flat hole (614) that is flat in shape and axially penetrating, and the core of the second angle block (62) is provided with a second flat hole (624) that is flat in shape and axially penetrating. The first angle block (61) is fitted to the outer periphery of the first shaft (12) through the first flat hole (614) to prevent rotation, and the second angle block (62) is fitted to the outer periphery of the second shaft (22) through the second flat hole (624) to prevent rotation.

5. A dual-axis, three-section switching shaft according to claim 1, characterized in that: This dual-axis, three-section switching shaft has four position states: 0-degree position, first middle position, second middle position, and 360-degree position. The rotation from the 0-degree position to the middle first position is achieved through the first rotation process, the rotation from the middle first position to the middle second position is achieved through the second rotation process, and the rotation from the middle second position to the 360-degree position is achieved through the third rotation process.

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