Overhead double rotating shaft

Abstract

The utility model relates to double rotation shaft technical field and disclose a kind of overline double rotation shaft, including rotation shaft shell, rotation shaft and movable rack, rotation shaft shell includes lower cover and upper cover;Rotation shaft is assembled by M2 screw and is inserted into lower cover, and rotation shaft includes shaft core, shaft sleeve and spring piece, movable rack includes R type movable rack and L type movable rack respectively sleeved in the outer side of two shaft cores, the outer side of R type movable rack and L type movable rack is respectively equipped with the limiting washer of sleeve in the outer side of shaft core and cooperate R type movable rack and L type movable rack overturning limit, the outer side of limiting washer is equipped with nut and R type movable rack, L type movable rack locking positioning with the thread connection of shaft core.The rotation shaft is fixed by M2 screw, effectively prevent loosening, enhance stability and durability.Rotation shaft design has self-locking function, every 90 degrees rotation self-locking, and rotation shaft shell one end has enough large overline hole, and cable is convenient to cross.

Description

Technical Field

[0001] This utility model belongs to the field of dual-shaft technology, specifically relating to a wire-passing dual-shaft. Background Technology

[0002] With the development of modern mechanical design and electronic equipment, dual-axis structures play an important role in various application scenarios, such as robots, cameras, and robotic arms. The main function of a dual-axis is to achieve rotation and flipping to meet specific work requirements. However, existing methods of fixing dual-axis to the axis housing and the design of the cable routing holes have certain limitations, which restrict the performance and reliability of dual-axis in practical applications.

[0003] Existing methods for securing dual shafts to their housings are often not robust enough, leading to loosening after prolonged use. This not only affects the shaft's stability but can also cause operational errors and safety hazards. The securing methods for dual shafts to their housings are typically inadequate, making loosening easy, and the cable guide holes are usually too small to accommodate larger diameter cables. Furthermore, dual shafts often lack self-locking and limit functions, potentially causing play or loosening during rotation.

[0004] In summary, existing technologies have significant shortcomings in terms of the fixing method of dual shafts, the size of the wire passage holes, self-locking and limiting functions, as well as assembly and positioning. Therefore, we propose a wire-passing dual shaft design that effectively solves the problem of shaft loosening after prolonged use. The shaft features self-locking every 90 degrees of rotation, and the wire passage holes are large enough to ensure proper wire passage. Utility Model Content

[0005] To overcome the shortcomings of existing technologies and solve the problems of most existing dual-shaft systems lacking a good fixing method for the shaft housing and having insufficient wire-passing holes, this utility model proposes a wire-passing dual-shaft system.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A double-rotor for cable routing includes a shaft housing, shafts, and a movable frame. The shaft housing includes a lower cover and an upper cover threadedly connected to the lower cover. Two shafts are symmetrically arranged on the left and right sides and are respectively inserted into the lower cover and assembled by M2 screws. The shaft includes a shaft core, a bushing, and a spring. The spring is located inside the bushing and fits on the outer side of the shaft core and is inserted into two circular slots on the left and right sides of the lower cover. The movable frame includes an R-shaped movable frame and an L-shaped movable frame that fit on the outer side of the two shaft cores respectively. The outer side of the R-shaped movable frame and the L-shaped movable frame are respectively provided with a limiting washer that fits on the outer side of the shaft core and cooperates with the R-shaped movable frame and the L-shaped movable frame to limit their flipping. The outer side of the limiting washer is provided with a nut that is threadedly connected to the shaft core and locks and positions the R-shaped movable frame and the L-shaped movable frame.

[0008] Preferably, the upper cover has four positioning pins at its four corners that are inserted into the positioning holes on the lower cover. The lower cover has mounting holes A for mounting with M3 screws. The inner wall of the upper cover has a perforated mounting pin that mates with mounting hole A.

[0009] The lower cover and the threaded part of the lower cover are connected by an M3 screw that passes through the mounting hole A and is threaded to the mounting post with the hole.

[0010] Preferably, the bottom of the lower cover has a decorative piece that conceals the M3 screws, enhancing the aesthetic appeal.

[0011] Preferably, the lower cover is provided with mounting hole B for mounting with M2 screws, and the shaft is provided with mounting hole C for mounting with M2 screws.

[0012] Preferably, the circular limiting plate on the shaft core is positioned within the circular slot, and the straight plate on the shaft core is inserted into the straight hole on the lower cover, with the straight hole communicating with the circular slot. This ensures precise positioning of the shaft.

[0013] Preferably, the protrusions on the R-type and L-type movable frames rotate 0-90° along the limiting guide grooves on the limiting pads. This allows for free rotation within the 0-90° range, meeting different usage requirements. The design of the limiting guide grooves ensures the safety of rotation, avoiding the risks that may arise from unrestricted movement.

[0014] Each spool has a self-locking mechanism every 90 degrees of rotation. The two spools work together to allow the cable guide dual spools to achieve a maximum torque of 1-3 KGF-CM and a 180° rotation. The spools are fixed with M2 screws and will not have any looseness or play after the rotation test. There are also sufficiently large cable guide holes to ensure cable passage.

[0015] Preferably, a convex washer is provided between the bushing and the movable bracket, which fits onto the outer side of the shaft core and engages with a recessed groove on the movable bracket for better positioning.

[0016] Compared with the prior art, the technical effects and advantages of this utility model are:

[0017] The dual-spindle mechanism secures the spindle to the lower cover of the spindle housing using M2 screws, providing a robust connection and preventing loosening after prolonged use. The spindle features a self-locking function; the mechanism activates every 90 degrees of rotation, locking the spindle in place. Furthermore, precise positioning is ensured at specific angles by limit washers and nuts, preventing uncontrolled movement.

[0018] The shaft housing is designed with sufficiently large cable guide holes, allowing cables of larger diameters to pass through without obstructing the shaft's movement. The R-type and L-type movable brackets can rotate around the shaft core and are locked in place by limit washers and nuts, thus enabling the shaft's tilting adjustment. The upper and lower covers achieve precise alignment through the cooperation of positioning pins and mounting holes A, while decorative pieces and mounting holes B and C further enhance the overall aesthetics and stability of the structure.

[0019] Secured with screws, the shaft is effectively prevented from loosening, enhancing its stability and durability. Self-locking and limit functions reduce the possibility of misoperation, improving operational safety and preventing accidents caused by operational errors. Sufficiently large cable guide holes allow for smoother cable passage, reducing the risk of cable damage while ensuring normal equipment operation. The design of the positioning posts and mounting holes makes the assembly process faster and more accurate, reducing assembly time and labor costs. Decorative plates conceal the screws, improving the overall aesthetics of the product. The engaging engagement of the convex bulge gasket and concave groove provides cushioning, reducing direct contact between the bushing and the moving frame, reducing wear, and extending the equipment's service life. Attached Figure Description

[0020] Figure 1 This is a first-view structural schematic diagram of the present invention;

[0021] Figure 2 This is a structural schematic diagram of the present invention from a second perspective;

[0022] Figure 3 This is an exploded view of the present invention;

[0023] Figure 4 This is an exploded view of the present invention.

[0024] In the diagram: 1. Shaft core; 101. Mounting hole C; 102. Circular limiting plate; 103. Straight plate; 2. Bushing; 3. Spring; 4. Convex washer; 5. L-shaped movable frame; 6. Limiting washer; 601. Limiting guide groove; 7. Nut; 8. R-shaped movable frame; 9. M2 screw; 10. Top cover; 1001. Positioning post; 1002. Mounting post with hole; 11. Bottom cover; 1101. Positioning hole; 1102. Mounting hole A; 1103. Circular groove; 1104. Mounting hole B; 1105. Straight hole; 12. M3 screw; 13. Decorative piece; 14. Protrusion; 15. Recessed groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0027] This application discloses a double-shaft cable guide, including a shaft housing, a shaft, and a movable frame. The shaft housing includes a lower cover 11 and an upper cover 10 that is threadedly connected to the lower cover 11.

[0028] The upper cover 10 has four positioning pins 1001 at its four corners that are inserted into the positioning holes 1101 on the lower cover 11. The lower cover 11 has mounting holes A1102 that are fitted with M3 screws 12. The inner wall of the upper cover 10 is fixed with a perforated mounting pin 1002 that mates with the mounting hole A1102.

[0029] The lower cover 11 is threaded together with the upper cover 10 and the lower cover 11 via the through mounting hole A1102 and the threaded connection of the mounting post 1002. The positioning post 1001 ensures accurate alignment between the upper cover 10 and the lower cover 11, facilitating quick and accurate assembly. The M3 screw 12 connection increases the structural tightness and improves the overall mechanical performance.

[0030] The bottom of the lower cover 11 is fitted with a decorative piece 13 to conceal the M3 screw 12. The decorative piece 13 can cover the M3 screw 12, improving the aesthetics of the appearance. The decorative piece 13 can also provide some protection for the M3 screw 12, preventing it from being directly damaged by external forces.

[0031] Two rotating shafts are symmetrically arranged on the left and right sides and are respectively inserted into the lower cover 11 and assembled by M2 screws 9. The rotating shaft includes a shaft core 1, a shaft sleeve 2 and a spring piece 3. The spring piece 3 is located inside the shaft sleeve 2 and is sleeved on the outer side of the shaft core 1 and inserted into two circular slots 1103 on the left and right sides of the lower cover 11. The lower cover 11 is provided with mounting holes B1104 for installation with M2 screws 9, and the shaft core 1 is provided with mounting holes C101 for installation with M2 screws 9.

[0032] The circular limiting plate 102 on the shaft core 1 is positioned within the circular slot 1103, and the straight plate 103 on the shaft core 1 is inserted into the straight hole 1105 on the lower cover 11, with the straight hole 1105 communicating with the circular slot 1103. The design of the circular limiting plate 102 and the straight plate 103 ensures precise positioning of the shaft and reduces the possibility of misoperation.

[0033] The movable frame includes an R-type movable frame 8 and an L-type movable frame 5 respectively fitted onto the outer sides of the two shaft cores 1. The outer sides of the R-type movable frame 8 and the L-type movable frame 5 are respectively provided with limiting shims 6 fitted onto the outer sides of the shaft core 1 and cooperating with the R-type movable frame 8 and the L-type movable frame 5 to limit their flipping. The outer side of the limiting shims 6 is provided with nuts 7 that are threadedly connected to the shaft core 1 and lock the R-type movable frame 8 and the L-type movable frame 5 in place.

[0034] The protrusions 14 on the R-type movable frame 8 and the L-type movable frame 5 can rotate from 0 to 90 degrees along the limiting guide groove 601 on the limiting pad 6. This allows for free rotation within the 0-90° range to meet different usage needs. The design of the limiting guide groove 601 ensures the safety of the rotation, avoiding the risks that may arise from unrestricted movement.

[0035] Each swivel has a self-locking mechanism every 90 degrees of rotation. The two swivels work together to allow the double swivels to rotate 180 degrees within a maximum torque range of 1-3 KGF-CM, enabling the entire double swivels to be unfolded or folded. The swivels are fixed with M2 screws 9, and there is no play or loosening after the rotation test. In addition, the end of the swivel housing away from the R-type movable frame 8 and L-type movable frame 5 can be used for cable passage, with a sufficiently large cable passage hole to ensure cable passage.

[0036] A convex shim 4 is provided between the bushing 2 and the movable frame. It fits onto the outer side of the shaft core 1 and engages with the recessed groove 15 on the movable frame for positioning. The engagement of the convex shim 4 with the recessed groove 15 provides better positioning and increases structural stability. The shim also acts as a buffer, reducing direct contact between the bushing 2 and the movable frame and reducing wear.

[0037] The dual-axis cable guide is secured with M2 screws 9, effectively preventing loosening after prolonged use and enhancing its stability and durability. The R-shaped movable bracket 8 and L-shaped movable bracket 5 can be flipped and locked with nuts 7. Adjustment is achieved by rotating the R-shaped and L-shaped movable brackets 8 and 5. The M2 screws 9 secure the shaft, effectively solving the problem of loosening after extended use, improving operational accuracy and safety, and preventing accidents caused by operational errors. After flipping, the R-shaped and L-shaped movable brackets 8 and 5 are positioned by limit washers 6 and locked with nuts 7, reducing loosening and ensuring the accuracy of the shaft during movement, avoiding operational errors. With the R-shaped and L-shaped movable brackets 8 and 5 fixed at one end of the dual-axis cable guide, the other end can be used for cable passage.

[0038] Overall, this dual-spindle design, through its unique structure and function, improves the stability and safety of the equipment, simplifies the assembly and maintenance process, and also takes into account aesthetics and appearance, providing users with a more reliable and convenient user experience.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 double-shaft guide for wires, characterized in that, include: The shaft housing includes a lower cover (11) and an upper cover (10) threadedly connected to the lower cover (11); Two rotating shafts are symmetrically arranged on the left and right and are respectively inserted into the lower cover (11) and assembled by M2 screws (9). The rotating shaft includes a shaft core (1), a bushing (2) and a spring piece (3). The spring piece (3) is located inside the bushing (2) and is sleeved on the outer side of the shaft core (1) and inserted into the two circular slots (1103) on the left and right sides of the lower cover (11). The movable frame includes an R-type movable frame (8) and an L-type movable frame (5) respectively fitted on the outer side of the two shaft cores (1). The outer side of the R-type movable frame (8) and the L-type movable frame (5) is provided with a limiting washer (6) fitted on the outer side of the shaft core (1) and cooperating with the R-type movable frame (8) and the L-type movable frame (5) to limit the flipping. The outer side of the limiting washer (6) is provided with a nut (7) threaded to the shaft core (1) and locking the R-type movable frame (8) and the L-type movable frame (5) in a fixed position.

2. The double-shaft guide wire according to claim 1, characterized in that: The upper cover (10) has four positioning pins (1001) at its four corners that are inserted into the positioning holes (1101) on the lower cover (11). The lower cover (11) has a mounting hole A (1102) for mounting with an M3 screw (12). The inner wall of the upper cover (10) is fixed with a perforated mounting pin (1002) that mates with the mounting hole A (1102). The lower cover (11) is connected to the threaded part of the lower cover (11) by means of an M3 screw (12) that is threaded to the mounting hole A (1102) and the mounting post (1002) with the hole.

3. The double-shaft guide wire according to claim 2, characterized in that: The bottom of the lower cover (11) is fitted with a decorative piece (13) to conceal the M3 screw (12).

4. The double-shaft guide wire according to claim 1, characterized in that: The lower cover (11) is provided with mounting hole B (1104) for mounting with M2 screw (9), and the shaft core (1) is provided with mounting hole C (101) for mounting with M2 screw (9).

5. A double-shaft guide wire according to claim 4, characterized in that: The circular limiting plate (102) on the shaft core (1) is limited in the circular groove (1103), and the straight plate (103) on the shaft core (1) is inserted into the straight hole (1105) on the lower cover (11), and the straight hole (1105) is connected to the circular groove (1103).

6. The double-shaft guide wire according to claim 1, characterized in that: The protrusions (14) on the R-type movable frame (8) and the L-type movable frame (5) rotate 0-90° along the limiting guide groove (601) on the limiting pad (6).

7. The double-shaft guide wire according to claim 1, characterized in that: A convex pad (4) is provided between the bushing (2) and the movable frame, which is sleeved on the outer side of the shaft core (1) and cooperates with the recessed groove (15) on the movable frame for positioning.

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