CN214394291U

CN214394291U - Shaver with multiple movable blades

Info

Publication number: CN214394291U
Application number: CN202120178120.6U
Authority: CN
Inventors: 钟学波; 李剑勇; 陈兴荣
Original assignee: Tianjin Xumei Technology Co ltd; Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Xumei Intelligent Technology Jiangsu Co ltd; Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2021-01-21
Filing date: 2021-01-21
Publication date: 2021-10-15
Anticipated expiration: 2031-01-21

Abstract

The utility model relates to a shaver with a plurality of movable blades, which comprises a shaving assembly and a body provided with a power output end; the shaving assembly comprises a movable blade; the knife connecting structure is characterized by also comprising a connecting structure and a knife connecting body provided with a connecting pin; the connecting pin is connected with the movable knife; the connecting structure comprises a first connecting body and a second connecting body; the first connecting body is provided with an inserting groove; the second connector is provided with an inserting bulge; one of the first connecting body and the second connecting body is connected with the knife connecting body, and the other one is connected with the power output end; the inserting projection is embedded into the inserting groove; the direction of the inserting projection inserted into the inserting groove is upward or downward, and an included angle which is larger than or equal to zero and smaller than or equal to ninety degrees is formed between the inserting projection and a horizontal plane in which the moving direction of the power output end is located. The utility model discloses can reach, the sealing opening can design lessly, can improve great elasticity when the power take off end that shields of sealing opening offsets to can improve the leakproofness.

Description

Shaver with multiple movable blades

Technical Field

The utility model relates to a personal care products technical field, in particular to movable sword connection structure reaches, electric shaver.

Background

As shown in fig. 10, in the conventional electric shaver, a center drive lever 56 is fixed to the 2 nd driving member 52, and the center drive lever 56 is coupled to the inner blade 33 at the center in the front-rear direction. The center drive lever 56 includes a resin fixing portion 56a fixed to the 2 nd driving element 52, and a resin support portion 56b integrally formed with the resin fixing portion 56a and connected to the center inner blade 33. The resin fixing portion 56a has a pair of arm portions, and is fitted to the 2 nd driver 52 by sandwiching the base portion 52a between the pair of arm portions. The resin support portion 56b is disposed between the 1 st driving element 51 and the 2 nd driving element 52 (

pins

51b, 52b), and protrudes upward in parallel with the

pins

51b, 52 b. The resin support portion 56b is formed in a 4-angle shape as viewed from above, and has sides in the front-rear direction and the left-right direction.

In summary, the prior art has at least the following technical problems,

first, when a fitting operation is performed, when a part having a wrist portion is held and translated parallel to the tip end surface of the tool bit, the hand is easily interfered by the tool bit and is difficult to assemble.

Secondly, the upper portions of the 1 st driving member 51 and the 2 nd driving member 52 are both large in cross section (taken in a horizontal plane); the sealing opening of the sealing member needs to be designed to be large in consideration of the 1 st driving member 51 and the 2 nd driving member 52, so as to provide a small elastic force, which is not favorable for improving the sealing performance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve or alleviate the above-mentioned second technical problem.

The utility model adopts the measure that the shaver with a plurality of movable cutters comprises a shaving component, a cutter connector with a connecting pin and a machine body with a power output end; the shaving assembly comprises a movable blade; the knife connecting body is provided with a plurality of connecting pins which are connected with the movable knife; the connecting structure comprises a first connecting body and a second connecting body; the first connecting body is provided with an inserting groove; the second connector is provided with an inserting bulge; one of the first connecting body and the second connecting body is connected with the knife connecting body, and the other one is connected with the power output end; the inserting projection is embedded into the inserting groove; the direction of the inserting projection inserted into the inserting groove is upward or downward, and an included angle which is more than or equal to zero and less than or equal to ninety degrees is formed between the inserting projection and a horizontal plane in which the moving direction of the power output end is located; the cutter connecting body is characterized by also comprising an isolating piece arranged on the machine body, wherein the isolating piece is elastic and provided with a sealing opening, and the power output end is completely positioned in the cutter connecting body in overlooking; the power output end penetrates through the sealing opening, and the sealing opening of the isolating piece in a natural state is completely positioned in the power output end when viewed from top.

The utility model has the advantages that the connection between the knife connecting body with a plurality of connecting pins and the power output end is convenient; meanwhile, the sealing performance of the machine body can be improved.

According to a further technical scheme, the second connector is connected with the power output end, and the direction of the inserting protrusion embedded into the inserting groove is upward and is approximately perpendicular to the moving direction of the power output end.

According to a further technical scheme, the second connecting body is completely positioned in the power output end when viewed from top.

The sealing opening can be designed to be small, and large elastic force can be improved when the shielding power output end of the sealing opening is abutted, so that sealing performance can be improved.

According to the further technical scheme, the top end face of the power output end is attached to the bottom end face of the first connecting body.

The blade connecting body can be prevented from being skewed by vibration.

According to a further technical scheme, the power output end comprises a positioning table fixedly arranged at the top end of the power output end, and the positioning table and the power output end are encircled to form a sealed slot.

The installation of the sealing port in place is convenient to confirm.

According to a further technical scheme, the cross section of the side wall of the positioning table is similar to that of the side wall of the power output end when the positioning table is overlooked.

According to the further technical scheme, when the cross section of the side wall of the positioning table is overlooked, the cross section of the side wall of the power output end deviates outwards, and the distance is less than one millimeter.

According to the further technical scheme, the cross section of the side wall of the positioning table and the cross section of the side wall of the power output end are both elliptical when the positioning table is overlooked.

In conclusion, the utility model can achieve the following technical effects,

1, the sealing opening can be designed to be small, and large elastic force can be improved when the shielding power output ends of the sealing opening are abutted, so that the sealing performance can be improved.

2 facilitating connection between a blade connection body having a plurality of connection pins and a power take-off.

3, the installation of the sealing port is convenient to confirm.

Drawings

Fig. 1 is a perspective view of a shaver according to an embodiment of the present invention.

Fig. 2 is an exploded perspective view of a shaver according to an embodiment of the present invention.

Fig. 3 is a perspective view of head assembly 19 according to an embodiment of the present invention.

Fig. 4 is an exploded isometric schematic view of head assembly 19 according to an embodiment of the present invention; arrow ARR1 indicates the direction in which the power take-off 11 can reciprocate.

Fig. 5 is a schematic perspective view of a connector 2 according to an embodiment of the present invention.

FIG. 6 is a schematic illustration of section one SEC 1; arrow two ARR2 indicates the direction of downward movement of spacer 5 when head assembly 19 is assembled; the LINE three LINE3 represents the horizontal plane in which the direction of movement of the power take-off 11 lies.

FIG. 7 is a partial schematic view of section two SEC 2; arrow ARR1 indicates the direction of reciprocation of the power take-off 11.

FIG. 8 is a partial schematic view of section three SEC 3; LINE two LINE2 represents the outer sidewall of the power take-off 11.

Fig. 9 is a perspective view of the separator 5.

Fig. 10 is a schematic view of a prior art electric shaver; the reference numerals of fig. 10 are limited to those of the background art in the specification.

Arrow one ARR 1; arrow two ARR 2; section one SEC 1; section two SEC 2; section three SEC 3; LINE one LINE 1; LINE two LINE 2; LINE three LINE 3; a body 1; a power take-off 11; a positioning table 111; a hermetic seal groove 112; a drive device 119; a head assembly 19; a knife connector 2; a groove 21; a reinforcing rib 219; a connecting pin 29; a connecting structure 3; the first connecting body 31; a plug-in slot 311; an interpolation lobe 312; a second connecting body 32; an insertion projection 321; an inner slot 322; a limiting member 4; a spacer 5; a seal port 51; a shaving assembly 9; a movable blade 91; a connection port 911; an outer blade mesh 92; an outer blade holder 921; an outer cover 99.

Detailed Description

The following description will be made in conjunction with the accompanying drawings.

As a specific embodiment, the movable knife connecting structure of the embodiment of the present invention includes a shaving assembly 9 and a body 1 provided with a power output end 11; the shaving assembly 9 comprises a movable blade 91.

The fuselage 1 includes a head assembly 19 at the top end of the fuselage 1.

The head assembly 19 is movable relative to the rest of the fuselage 1 to achieve flotation.

As shown in fig. 4, a driving device 119 is provided in the head assembly 19, and the driving device 119 outputs power to the power output end 11. The drive 119 has two outputs which are moved in opposite directions and which are each connected to two power outputs 11, so that the two power outputs 11 are moved in opposite directions.

The driving device 119 is a device such as a linear motor that outputs reciprocating power, and may be a conventional rotary motor that outputs reciprocating power after being changed in direction by a conventional direction changing mechanism.

As shown in fig. 2, the shaving unit 9 includes an outer blade net 92 connected to the body 1, the movable blade 91 is positioned in the outer blade net 92, and the movable blade 91 is connected to the power output terminal 11 via a blade connecting body 2 described later and a connecting structure 3 described later so as to be reciprocatingly movable. The movable blade 91, which reciprocates, cuts beard and the like passing through the outer blade net 92, thereby achieving shaving and the like. The movable blades 91 are connected to the two power output terminals 11 through a blade connector 2 and a connecting structure 3, respectively.

The shaving assembly 9 further includes an outer cutter frame 921 detachably connected (e.g., magnetically attached) to the body 1, and the outer cutter mesh 92 is disposed on the outer cutter frame 921, so that the outer cutter mesh 92 is connected to the body 1.

The movable knife connecting structure of the embodiment of the utility model also comprises a connecting structure 3 and a knife connecting body 2 provided with a connecting pin 29; the connecting pin 29 is connected to the movable blade 91.

The connecting pin 29 is made of metal and is embedded in the knife connecting body 2; of course, the connecting pin 29 can also be integrated with the knife connecting body 2 (by means of injection molding).

The movable blade 91 is provided with a connection hole 911, and the connection pin 29 is inserted into the connection hole 911, thereby connecting the movable blade 91 to the blade connection body 2.

As shown in fig. 4, the connection structure 3 includes a first connection body 31 and a second connection body 32; the first connecting body 31 is provided with a plugging groove 311; the second connector 32 is provided with an insertion projection 321.

As shown in fig. 5, one of the first connecting body 31 and the second connecting body 32 is connected to the blade connecting body 2, and the other is connected to the power take-off 11.

The inserting projection 321 is inserted into the inserting groove 311; thereby connecting the knife connecting body 2 with the power take-off 11. The insertion protrusion 321 is inserted into the insertion groove 311, and the first connection body 31 and the second connection body 32 may be fastened by interference fit or snap fit, or the first connection body 31 and the second connection body 32 may be fastened by a stopper 4 described later. It should be noted that screwing the insertion protrusion 321 into the insertion groove 311 also belongs to one of the ways of embedding the insertion protrusion 321 into the insertion groove 311.

As shown in fig. 4, the insertion protrusion 321 is inserted into the insertion groove 311 in an upward or downward direction (refer to arrow two ARR2, arrow two ARR2 is a downward direction, that is, there is a height difference between the position of the insertion protrusion 321 before the insertion protrusion 321 is inserted into the insertion groove 311 and the position of the insertion protrusion 321 after the insertion protrusion 321 is inserted into the insertion groove 311), and there is an angle greater than zero and less than or equal to ninety degrees with the movement direction of the power output end 11 (i.e., the square shown by arrow one ARR 1).

The working principle is that the direction of the inserting projection 321 inserted into the inserting groove 311 is upward or downward, and an included angle which is larger than zero and smaller than or equal to ninety degrees is formed between the inserting projection and the horizontal plane in which the moving direction of the power output end 11 is located; when the knife connecting body 2 is assembled or replaced, the side surface of the power output end 11 has a larger space, and a hand holding the knife connecting body 2 cannot be blocked by the top end surface of the head component 19, so that the knife connecting body 2 is convenient to assemble or replace.

As shown in fig. 5, the first connecting body 31 is connected to the knife connecting body 2, and the insertion protrusion 321 is inserted into the insertion groove 311 in an upward direction (the knife connecting body 2 may be downward relative to the machine body 1, such that the insertion protrusion 321 is upward relative to the insertion groove 311), and is substantially perpendicular to the movement direction of the power output end 11.

The knife link 2 is integral with the first link 31/second link 32. The knife connecting body 2 forms an integral part with the first connecting body 31/the second connecting body 32 during injection molding.

As shown in fig. 7, the sidewall of the insertion groove 311 has a closed ring shape in cross section taken by a horizontal plane. As shown in fig. 7, the sidewall of the insertion groove 311 has a generally rectangular ring shape in cross section taken along the horizontal plane. The strength of the first connecting body 31 can be ensured and the first connecting body 31 can be prevented from being damaged.

The knife connecting body 2 is provided with a recess 21, and the first connecting body 31/second connecting body 32 is arranged in the recess 21. The height between the knife connecting body 2 and the power output end 11 can be reduced, and miniaturization is facilitated.

An interpolation bulge 312 is arranged in the insertion groove 311; an inner slot 322 is arranged in the inserting projection 321; the interpolation protrusion 312 is inserted into the interpolation slot 322. The number of the insertion protrusions 312 and the insertion grooves 322 may be plural. The connection strength between the first connection body 31 and the second connection body 32 can be further improved.

As shown in fig. 5, a reinforcing rib 219 is disposed in the groove 21, and the reinforcing rib 219 is fixedly connected to the inner wall of the groove 21 and the first connecting body 31/the second connecting body 32; the connecting pin 29 is embedded in the reinforcing rib 219. The strength of the blade connected body 2 and the first and second

connected bodies

31 and 32 can be ensured, and the size can be reduced.

As shown in fig. 7, the plug connector further includes a limiting member 4, and the limiting member 4 is embedded in the sidewall of the insertion slot 311 and the insertion protrusion 321. The limiting part 4 can be a bolt column or a bolt. The first connecting body 31 and the second connecting body 32 can be prevented from being separated from each other by the reciprocating motion of the power take-off 11.

As shown in fig. 7, as an embodiment, the limiting member 4 is provided with a screw thread, and the axis is substantially parallel to the moving direction of the power output end 11. When the limiting part 4 is convenient to rotate (when the limiting part 4 is rotated, the other knife connecting body 2 cannot block), the assembly is convenient.

In one embodiment (not shown), the position-limiting member 4 is a pin, and the axis of the pin is substantially perpendicular to the moving direction of the power output end 11. Spacing between the first connecting body 31 and the second connecting body 32 can be realized without rotating the limiting part 4, so that assembly is facilitated, and meanwhile, when the power output end 11 reciprocates, the force action of the first connecting body 31 and the second connecting body 32 on the limiting part 4 is perpendicular to the axial lead of the limiting part 4 (when the section of the limiting part 4 is rectangular or other non-circular, the central lead is used), and the limiting part 4 can be prevented from being drawn out from the side wall of the insertion groove 311 and/or the insertion protrusion 321, so that the first connecting body 31 and the second connecting body 32 are separated from each other due to the reciprocating motion of the power output end 11.

As shown in fig. 3, the knife connecting body 2 is provided with a plurality of (i.e. more than two) connecting pins 29, the power take-off 11 being located entirely within the knife connecting body 2 in plan view.

The theory of operation does, during the equipment, need not to assemble respectively a plurality of connecting pin 29 to the gomphosis to power take off 11 on, only need realize that sword connector 2 pegs graft with power take off 11 can, be convenient for possess being connected between the sword connector 2 of a plurality of connecting pin 29 and the power take off 11.

The movable knife connecting structure of the embodiment of the present invention further includes a spacer 5 disposed on the machine body 1, as shown in fig. 9, the spacer 5 has elasticity and is provided with a sealing opening 51; as shown in fig. 6 and 8, the power output end 11 passes through the seal opening 51, and as shown in fig. 8, the seal opening 51 of the spacer 5 in a natural state in a plan view is completely located in the power output end 11. The elasticity of the spacer 5 allows the side wall of the seal opening 51 to be attached to the power output port 11, so that the spacer 5 can seal the interior of the body 1 and prevent water or cut beard or the like from entering the interior of the body 1 when the cutter head is cleaned. The spacer 5 is a sheet-shaped silicone sheet or rubber sheet. That is, the sealing performance of the body 1 can be improved.

The second connector 32 is connected to the power output end 11, and the direction of the insertion protrusion 321 inserted into the insertion groove 311 is upward (the insertion protrusion 321 may be downward relative to the machine body 1, so that the insertion protrusion 321 is upward relative to the insertion groove 311), and is substantially perpendicular to the movement direction of the power output end 11.

The power output end 11 comprises a positioning table 111 fixedly arranged at the top end of the power output end 11, and the positioning table 111 and the power output end 11 are encircled to form a sealed slot 112. To facilitate confirmation that the seal port 51 is installed in place.

As shown in fig. 8, the second connecting body 32 is located entirely within the power take-off 11 in a top view. As shown in fig. 6, when the head unit 19 is assembled, after the driving device 119 and the power output terminal 11 are fixed in the head unit 19, and the spacer 5 is moved downward so that the power output terminal 11 passes through the seal opening 51, the power output terminal 11 is an object having the largest cross-sectional area, and there is no need to consider a requirement for the seal opening 51 when the cross-sectional area knife connector 2 passes through the seal opening 51 in a plan view (the area of the seal opening 51 is required to be large in a plan view), that is, the seal opening 51 can be designed to be small, and a large elastic force can be increased when the power output terminal 11 is blocked by the seal opening 51, so that the sealing performance can be improved.

As shown in fig. 6, the top end face of the power take-off 11/the top end face of the positioning table 111 is fitted to the bottom end face of the first connecting body 31. The blade connection body 2 can be prevented from being skewed by vibration.

As shown in fig. 8, the cross section of the side wall of the positioning table 111 is similar to the cross section of the side wall of the power take-off 11 in plan view.

As shown in fig. 8, a cross section of the side wall of the positioning table 111 in a plan view is formed by outwardly offsetting the cross section of the side wall of the power take-off 11 by a distance of less than one millimeter.

As shown in fig. 8, the cross section of the side wall of the positioning table 111 and the cross section of the side wall of the power take-off 11 are both elliptical in plan view.

As used in the present invention, the term: first, second, etc. do not denote any order, quantity, or importance, but rather are used to distinguish one element from another.

As used in the present invention, the term: one, etc. do not denote a limitation of quantity, but rather denote the presence of at least one of the referenced item.

As in the present invention, the term indicating orientation or position is used: top, bottom, side, longitudinal, lateral, middle, center, outer, inner, horizontal, vertical, left, right, above, below, and the like are intended to reflect relative positions, not absolute positions.

The term as used in the present invention: approximate, whole, approximate, close, etc., are words of definition that specify the presence of stated features but allow for certain deviations. The amount of tolerance for a certain deviation may vary depending on the particular context; for example, the specific context in which deviations from size may be relied upon includes, but is not limited to, national standards for dimensional tolerances.

Claims

1. The shaver with a plurality of movable blades comprises a shaving assembly (9), a blade connector (2) provided with a connecting pin (29) and a body (1) provided with a power output end (11); the shaving assembly (9) comprises a movable blade (91); the knife connecting body (2) is provided with a plurality of connecting pins (29), and the connecting pins (29) are connected with the movable knife (91); the connecting structure (3) comprises a first connecting body (31) and a second connecting body (32); the first connecting body (31) is provided with a plug groove (311); the second connector (32) is provided with an inserting projection (321); one of the first connecting body (31) and the second connecting body (32) is connected with the knife connecting body (2), and the other one is connected with the power output end (11); the inserting projection (321) is embedded into the inserting groove (311); the direction of the insertion protrusion (321) inserted into the insertion groove (311) is upward or downward, and an included angle which is larger than or equal to zero and smaller than or equal to ninety degrees is formed between the insertion protrusion and a horizontal plane in which the movement direction of the power output end (11) is located;

the device is characterized by further comprising a partition (5) arranged on the machine body (1), wherein the partition (5) is elastic and provided with a sealing opening (51), and the power output end (11) is completely positioned in the knife connecting body (2) in a overlooking mode; the power output end (11) penetrates through the sealing opening (51), and the sealing opening (51) of the isolating piece (5) in a natural state in a plan view is completely positioned in the power output end (11).

2. The shaver with a plurality of movable blades as claimed in claim 1, wherein the second connecting body (32) is connected to the power take-off (11), and the direction in which the insertion protrusion (321) is inserted into the insertion groove (311) is upward and substantially perpendicular to the direction of movement of the power take-off (11).

3. A shaver with a plurality of movable blades as claimed in claim 2, wherein the second connecting body (32) is located completely inside the power take-off (11) in plan view.

4. The shaver with a plurality of movable blades as claimed in claim 1, wherein the top end face of the power output end (11) is attached to the bottom end face of the first connecting body (31).

5. The shaver with a plurality of movable blades according to claim 1, wherein the power output end (11) comprises a positioning table (111) fixedly arranged at the top end of the power output end (11), and the positioning table (111) and the power output end (11) surround to form a sealed slot (112).

6. Shaver with a plurality of movable blades according to claim 5, characterized in that the cross-section of the side wall of the positioning table (111) is similar to the cross-section of the side wall of the power take-off (11) in a top view.

7. Shaver with multiple movable blades according to claim 6, characterized in that the cross-section of the side wall of the positioning table (111) in top view is formed by the fact that the cross-section of the side wall of the power take-off (11) is offset outwards by a distance of less than one millimeter.

8. The shaver with a plurality of movable blades as claimed in claim 7, wherein the cross-section of the side wall of the positioning table (111) and the cross-section of the side wall of the power output end (11) are elliptical in plan view.