Hinge transmission mechanism of shaver

Abstract

The shaver comprises a shell, a cutterhead assembly and a motor, and is characterized in that the hinge transmission mechanism comprises a connecting rod, two cross connectors and two connectors, the connecting rod is in an H shape, the two cross connectors are rotatably installed at the two ends of the connecting rod respectively, and the two connectors are rotatably installed at the two ends of the connecting rod respectively. Wherein one end of one connector is rotationally connected with the cross connector, the other end of the connector is connected with the rotating shaft, the rotating shaft is in transmission connection with a cutter rest of the cutter head assembly through a shaft sleeve, one end of the other connector is rotationally connected with the other cross connector, and the other end of the other connector is connected with a rotating shaft of the motor. The transmission mechanism is simple and reasonable in structure, good in transmission effect, convenient to assemble and low in cost, effectively solves the transmission problem that two rotating structures are not on the same axis, and is not only suitable for a single-cutter-head shaver, but also suitable for other products with similar structures.

Description

Technical Field

[0001] The utility model belongs to the technical field of shavers, and in particular relates to a hinge transmission mechanism of a shaver. Background Art

[0002] With the continuous improvement of people's living standards, various small household appliances have also entered the lives of ordinary people. Razors are deeply loved by men as shaving tools. Razors are divided into single-head razors and multi-head razors according to the number of blade heads. Among them, single-head razors basically use motors to directly drive the blades to rotate. If the motor shaft and the blade rotating shaft are on the same axis, they can be connected directly or through a connector. If the motor shaft and the blade rotating shaft are not on the same axis, they are usually connected by gear transmission. This type of razor uses gear transmission connection, which has a relatively complex structure. Moreover, if there is a certain angle between the two shafts, this structure cannot be applied. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a hinge transmission mechanism for a shaver with a simple and reasonable structure, convenient assembly and good transmission effect in view of the above technical status quo, so as to solve the transmission problem when two rotating structures are not on the same axis.

[0004] The technical solution adopted by the utility model to solve the above technical problems is: a hinge transmission mechanism of a shaver, the shaver includes a shell, a blade disc assembly and a motor, and is characterized in that: the hinge transmission mechanism includes a connecting rod, a cross joint and a connecting head, the connecting rod is H-shaped, there are two cross joints, which are rotatably installed at both ends of the connecting rod, there are two connecting heads, one end of one of the connecting heads is rotatably connected to the cross joint, and the other end is connected to a rotating shaft, the rotating shaft is transmission-connected to the blade holder of the blade disc assembly through a shaft sleeve, one end of the other connecting head is rotatably connected to another cross joint, and the other end is connected to the motor shaft.

[0005] As an improvement, the cross joint includes a sphere, and convex shafts are respectively provided on the left and right sides and the front and rear sides of the sphere. Axial holes matching with the left and right convex shafts are respectively opened on the left and right sides of both ends of the connecting rod, and the cross joint is rotatably connected to the connecting rod through the cooperation between the left and right convex shafts and the shaft holes; the connecting head is an inverted U-shaped connecting head, and connecting shaft holes corresponding to the front and rear convex shafts are respectively opened on both sides of the end of the connecting head, and the cross joint is rotatably connected to the connecting head through the cooperation between the front and rear convex shafts and the connecting shaft holes.

[0006] Furthermore, the connecting head includes a circular plate, a connecting hole connected to the rotating shaft or the motor shaft is opened in the middle of the bottom surface of the circular plate, and both sides of the circular plate extend upward or downward to form connecting arms connected to the cross joint, and the connecting shaft holes are symmetrically opened at positions near the front ends of the two connecting arms.

[0007] Furthermore, the tool disc assembly includes a tool holder, a blade, a fixed ring and a mesh cover. The blade is installed on the tool holder. An inner hexagonal hole is provided in the middle of the tool holder. A sleeve is provided outside the rotating shaft. The sleeve is an outer hexagonal sleeve corresponding to the inner hexagonal hole. The rotating shaft is inserted into the inner hexagonal hole of the tool holder through the sleeve and is transmission-connected to the tool holder.

[0008] Furthermore, a bearing is sleeved outside the rotating shaft, and the bearing is arranged between the connecting head and the shaft sleeve.

[0009] Furthermore, the shell includes a lower shell and an upper shell, wherein the upper shell is formed by combining a front shell and a rear shell, a circular hole for installing a blade disc assembly is provided at the upper front end of the front shell, a power switch button is provided at the lower front end of the front shell, a battery is provided on the side of the motor through a clamp, a charging bracket is provided at the lower end of the motor, and a charging hole is provided at the bottom of the lower shell.

[0010] Finally, a motor frame is also provided in the shell, the motor frame is arranged above the lower shell, the front shell and the rear shell are arranged on the front and rear sides of the motor frame, the front shell is fixedly connected to the motor frame by screws, the rear shell is snap-connected to the front shell, and a sealing ring is lined between the motor frame and the lower shell.

[0011] Compared with the prior art, the advantages of the utility model are: the hinge transmission mechanism includes a connecting rod, two cross joints and two connecting heads, the cross joint is rotatably connected to the connecting rod, one end of the connecting head is rotatably connected to the cross joint, and the other end is connected to the motor shaft or the rotating shaft. When the motor rotates, the hinge transmission mechanism transmits the power to the knife holder to drive the knife holder to rotate. The utility model has a simple and reasonable structure, good transmission effect, and effectively solves the transmission problem of two rotating structures not on the same axis. It is easy to assemble and has low cost. The utility model is not only suitable for single-blade shavers, but also suitable for other products with similar structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the hinge transmission mechanism of an embodiment of the utility model;

[0013] Figure 2 for Figure 1 Exploded diagram of

[0014] Figure 3 This is a schematic diagram of the structure of a shaver according to an embodiment of the utility model;

[0015] Figure 4 An exploded view of the razor.

[0016] Figure 5 for Figure 4 A further breakdown of the diagram.

[0017] Figure 6 for Figure 5 A further decomposition diagram;

[0018] Figure 7 This is another exploded view of the razor; DETAILED DESCRIPTION

[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0020] like Figures 1 to 7 As shown, a hinge transmission mechanism of a shaver, the shaver includes a housing, a cutter disc assembly 4 and a motor 5, and a hinge transmission mechanism 8 is arranged between the cutter disc assembly 4 and the motor 5. The hinge transmission mechanism 8 includes a connecting rod 81, a cross joint 82 and a connecting head 83, the connecting rod 81 is H-shaped, there are two cross joints 82, which are rotatably installed at both ends of the connecting rod 81, and there are two connecting heads 83, one end of one of the connecting heads 83 is rotatably connected to the cross joint 82, and the other end is connected to a rotating shaft 84, and the rotating shaft 84 is transmission-connected to the cutter frame 41 of the cutter disc assembly 4 through a shaft sleeve 85, and one end of the other connecting head 83 is rotatably connected to the other cross joint 82, and the other end is connected to the motor shaft.

[0021] The specific structure is as follows: the cross joint 82 includes a sphere, and the left and right sides and the front and rear sides of the sphere are respectively provided with convex shafts 821 and 822, and the left and right sides of both ends of the connecting rod 81 are respectively provided with shaft holes 811 that match the left and right convex shafts 821, and the cross joint 82 is rotatably connected with the connecting rod 81 through the cooperation between the left and right convex shafts 821 and the shaft holes 811. The connecting head 83 is an inverted U-shaped connecting head, and the ends of the connecting head 83 are respectively provided with connecting shaft holes 831 corresponding to the front and rear convex shafts 822, and the cross joint 82 is rotatably connected with the connecting head 83 through the cooperation between the front and rear convex shafts 822 and the connecting shaft holes 831. The connecting head 83 includes a circular plate, and the middle part of the bottom surface of the circular plate is provided with a connecting hole connected with the rotating shaft 84 or the motor rotating shaft, and the two sides of the circular plate extend downward or upward to form a connecting arm connected with the cross joint 82, and the connecting shaft holes 821 are symmetrically provided at the positions of the two connecting arms near the front ends. The cutter head assembly 4 includes a cutter holder 41, a blade 42, a fixed collar and a mesh cover. The blade 42 is mounted on the cutter holder 41. A hexagonal hole 411 is provided in the middle of the cutter holder 41. A sleeve 85 is provided outside the rotating shaft 84. The sleeve 85 is an outer hexagonal sleeve corresponding to the hexagonal hole 411. The rotating shaft 84 is inserted into the hexagonal hole 411 of the cutter holder 41 through the sleeve 85 to achieve transmission connection with the cutter holder 41. A bearing 86 is also provided outside the rotating shaft 84. The bearing 86 is arranged between the connector 83 and the sleeve 85.

[0022] The shell body includes a lower shell 1 and an upper shell, wherein the upper shell is formed by a front shell 2 and a rear shell 3. A circular hole for installing a blade disc assembly 4 is provided at the upper front end of the front shell 2, a power switch button 9 is provided at the lower front end of the front shell 2, a battery 7 is provided on the side of the motor 5 through a clamp, a charging bracket 50 is provided at the lower end of the motor 5, and a charging hole is provided at the bottom of the lower shell 1.

[0023] A motor frame 6 is also provided in the shell body, and the motor frame 6 is arranged above the lower shell 1. The motor frame 6 is fixedly connected to the connecting columns on the inner wall of the lower shell 1 by screws. The front shell 2 and the rear shell 3 are arranged on the front and rear sides of the motor frame 6. The front shell 2 is fixedly connected to the motor frame 6 by screws, and the rear shell 3 is snap-connected to the front shell 2. A sealing ring 10 is lined between the motor frame 6 and the lower shell 1.

[0024] When working, when the motor 5 rotates, it drives the connector 83 to rotate, the cross connector 82 to rotate, the connecting rod 81 to rotate, and then drives the cross connector 82 at the other end of the connecting rod 81 to rotate, the connector 83 to rotate, the rotating shaft 84 to rotate, and drives the sleeve 85 to rotate, so as to realize the rotation of the tool holder 41 and the blade 42. This embodiment has a simple and reasonable structure and a good transmission effect, and effectively solves the transmission problem that the two rotating structures are not on the same axis.

[0025] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A hinge transmission mechanism for a shaver, the shaver comprising a housing, a blade assembly and a motor, characterized in that: The hinge transmission mechanism includes a connecting rod, a cross joint and a connecting head. The connecting rod is H-shaped. There are two cross joints, which are rotatably installed at both ends of the connecting rod. There are two connecting heads, one end of which is rotatably connected to the cross joint, and the other end is connected to the rotating shaft. The rotating shaft is transmission-connected to the tool holder of the cutter disc assembly through a bushing. One end of the other connecting head is rotatably connected to another cross joint, and the other end is connected to the motor shaft.

2. The hinge transmission mechanism according to claim 1, characterized in that: The cross joint includes a sphere, and convex shafts are respectively provided on the left and right sides and the front and rear sides of the sphere. Axial holes matching with the left and right convex shafts are respectively opened on the left and right sides of both ends of the connecting rod. The cross joint is rotatably connected to the connecting rod through the cooperation between the left and right convex shafts and the shaft holes; the connecting head is an inverted U-shaped connecting head, and connecting shaft holes corresponding to the front and rear convex shafts are respectively opened on both sides of the end of the connecting head. The cross joint is rotatably connected to the connecting head through the cooperation between the front and rear convex shafts and the connecting shaft holes.

3. The hinge transmission mechanism according to claim 2, characterized in that: The connecting head includes a circular plate, a connecting hole connected to the rotating shaft or the motor shaft is opened in the middle of the bottom surface of the circular plate, and both sides of the circular plate extend upward or downward to form connecting arms connected to the cross joint, and the connecting shaft holes are symmetrically opened at positions near the front ends of the two connecting arms.

4. The hinge transmission mechanism according to claim 3, characterized in that: The cutter disc assembly includes a tool holder, a blade, a fixed ring and a mesh cover. The blade is installed on the tool holder. A hexagonal hole is provided in the middle of the tool holder. A sleeve is provided outside the rotating shaft. The sleeve is an outer hexagonal sleeve corresponding to the hexagonal hole. The rotating shaft is inserted into the hexagonal hole of the tool holder through the sleeve and is transmission-connected to the tool holder.

5. The hinge transmission mechanism according to claim 4, characterized in that: A bearing is sleeved outside the rotating shaft, and the bearing is arranged between the connecting head and the shaft sleeve.

6. The hinge transmission mechanism according to any one of claims 1 to 5, characterized in that: The shell includes a lower shell and an upper shell, wherein the upper shell is formed by combining a front shell and a rear shell, a circular hole for installing a cutter disc assembly is provided at the upper front end of the front shell, a power switch button is provided at the lower front end of the front shell, a battery is provided on the side of the motor through a clamp, a charging bracket is provided at the lower end of the motor, and a charging hole is provided at the bottom of the lower shell.

7. The hinge transmission mechanism according to claim 6, characterized in that: A motor frame is also provided in the shell body. The motor frame is arranged above the lower shell. The front shell and the rear shell are arranged on the front and rear sides of the motor frame. The front shell is fixedly connected to the motor frame by screws. The rear shell is snap-connected to the front shell. A sealing ring is lined between the motor frame and the lower shell.

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