WO2020155394A1

WO2020155394A1 - Hair cutting apparatus, cutting unit and connector thereof

Info

Publication number: WO2020155394A1
Application number: PCT/CN2019/082354
Authority: WO
Inventors: 俞光美
Original assignee: 浙江朗威电器科技有限公司
Priority date: 2019-01-29
Filing date: 2019-04-12
Publication date: 2020-08-06
Also published as: CN109822629A

Abstract

A connector comprises a base portion (1). At least one engagement member (2) extends from one side of the base portion (1). The engagement member (2) has a contact recess (21) formed along an extension direction thereof. A protrusion (24) is formed in the contact recess (21). The connector better fits existing receiving receptacles, can be plugged and unplugged conveniently, and ensures reliable connection.

Description

A hair cutting appliance, a cutting unit and its connector Technical field

[0001] The present invention relates to a hair trimming device, in particular to a hair cutting appliance, a cutting unit and a connector thereof.

Background technique

[0002] The cutting unit of the hair cutting appliance may be worn during use, and dirt and/or hair residues are also easy to accumulate at the cutting unit. Therefore, CN105658386B discloses a hair cutting appliance, a socket and a connector plug. The socket and the connector plug realize quick and simple attachment and detachment between the housing of the hair cutting appliance and the cutting unit, so that the cutting unit can be replaced and cleaned.

[0003] In CN105658386B, the receiving socket is used to connect the detachable cutting unit of the hair cutting appliance, and includes at least one receiving socket, a first biasing element, and a second biasing element opposite to the first biasing element. The two biasing elements are laterally spaced apart from each other.

Summary of the invention

technical problem

The solution to the problem

Technical solutions

[0004] The purpose of the present invention is to provide a new structure of a hair cutting appliance, a cutting unit and a connector thereof to better match the receiving socket disclosed in CN105658386B.

[0005] The technical solution adopted by the present invention: a connector including a base, at least one engagement element extends from one side of the base, and a contact groove is formed along the extension direction of the engagement element, and the contact recess A protrusion is formed in the groove.

[0006] The protrusion has a certain elasticity.

[0007] The contact groove is provided with a gap having a "U"-shaped structure, and the gap makes the contact groove form an elastic sheet, the elastic sheet is substantially parallel to the contact groove, and the protrusion is arranged in On the elastic sheet.

[0008] The free end of the elastic sheet is closer to the base relative to the connecting end of the elastic sheet, and the protrusion is provided on the free end of the elastic sheet. [0009] The convex surface is arc-shaped.

[0010] There are two joint elements, and they are arranged symmetrically along the center of the base.

[0011] The cross-sectional profile of the joining element is "C" shaped.

[0012] The free end of the joining element has an inclined structure.

[0013] A cutting unit, comprising a cutting assembly and the above-mentioned connector, wherein the base of the connector is provided with a connecting element on the other side opposite to the engaging element, and the connector is connected to the cutting assembly through the connecting element.

[0014] A hair cutting appliance, comprising a body, a cutting assembly, and the above-mentioned connector. The base of the connector is provided with a connecting element on the other side of the connecting element, and the connector is connected to the cutting assembly through the connecting element , The connector is detachably connected to the body through a joint element.

The beneficial effects of the invention

Beneficial effect

[0015] The beneficial effects of the present invention are: the above solution can better match the existing receiving socket, facilitate disassembly and assembly, and ensure reliable connection.

Brief description of the drawings

Description of the drawings

[0016] FIG. 1 is a schematic structural diagram of a connector according to an embodiment of the present invention.

[0017] FIG. 2 is a side view of the connector of the embodiment of the present invention.

[0018] FIG. 3 is a schematic structural diagram of a cutting unit according to an embodiment of the present invention.

[0019] FIG. 4 is a schematic structural diagram of a hair cutting appliance according to an embodiment of the present invention.

Invention embodiment

Embodiments of the invention

[0020] The following further describes the embodiments of the present invention with reference to the accompanying drawings:

[0021] As shown in FIG. 3, a cutting unit includes a cutting assembly 20 and a connector 30, and the connector 30 is hinged to the cutting assembly 20.

[0022] As shown in FIG. 4, a hair cutting appliance includes a body 10, a cutting assembly 20, and a connector 30. The connector 30 is connected to the cutting assembly 20, and the connector 30 can be connected to the body 10. Disconnect the connection.

[0023] Wherein, the cutting assembly 20 includes a knife holder, a static knife, a static knife holder, a movable knife, and a movable knife holder, and the body 10 It includes a housing capable of accommodating a motor. The housing is provided with a receiving socket for mating with the connector 30. The receiving socket includes a receiving socket, a first biasing element, and a second biasing element opposite to the receiving socket. The element and the second biasing element are laterally spaced apart from each other.

[0024] It should be noted that the structure of the cutting assembly and the fuselage has been basically disclosed by CN105658386B, and therefore will not be described in detail here.

[0025] As shown in FIG. 1-2, a connector includes a base 1, and a central through hole 4 is provided on the base 1. The central through hole 4 provides a space for connection, so that the connector is connected to the body After being connected with the cutting assembly, it is convenient to realize the linkage cooperation between the body and the cutting assembly.

[0026] Two symmetrically arranged connecting elements 11 extend from one side of the base 1, and rotating holes or rotating convex shafts are symmetrically arranged on the two connecting elements 11, corresponding to the rotating convex shafts or rotating holes on the cutter seat of the cutting assembly, The connector can be hinged with the cutting assembly through the connecting element 11.

[0027] Two symmetrically arranged joining elements 2 extend from the other side of the base 1, and the joining elements 2 are formed with contact grooves 21 along the extending direction, so that the cross-sectional profile is "C" shaped, so A protrusion 24 is formed in the contact groove 21.

[0028] When the connector is mated with the existing receiving socket, the engaging element 2 is inserted into the receiving socket of the receiving socket and is placed between the first biasing element and the second biasing element. The contact groove 21 can be The first biasing element maintains the contact limit, and the engaging element 2 is held in contact with the second biasing element on the other side of the contact groove 21, so that the first biasing element and the second biasing element can be clamped and joined Element 2 ensures the mating connection between the connector and the receiving socket, and at the same time, a limit fit is formed between the protrusion 24 and the first biasing element to ensure reliable installation.

[0029] Wherein, the protrusion 24 has a certain elastic performance. When the coupling element 2 is inserted into the receiving socket of the receiving socket, the protrusion 24 can better engage with the protrusion of the first biasing element, and perform better Disassembly operation.

[0030] As shown in the figure, a gap 22 having a "U"-shaped structure is provided in the contact groove 21, and the gap 22 forms an elastic sheet 23 in the contact groove 21, and the elastic sheet 23 and The contact groove 21 is substantially parallel, and the protrusion 24 is integrally formed with the elastic sheet 23, and the elastic effect of the protrusion 24 is formed by the elastic structure of the joining element 2 itself.

[0031] Further, the free end of the elastic sheet 23 is closer to the base 1 relative to its connection end with the joining element 2, so that while ensuring the fit with the first biasing element, the free end of the elastic sheet 23 is better increased Length to mention The elasticity is high, and at the same time, the protrusion 24 is arranged at the free end of the elastic sheet 23 to ensure better elasticity of the protrusion 24.

[0032] Of course, in order to achieve the elastic properties of the protrusions 24, in addition to the above solutions, an elastic material can also be used as the protrusions and directly adsorbed and combined on the joint element 2, and the elastic properties of the protrusions 24 themselves form an elastic effect.

[0033] In addition, the surface of the protrusion 24 is arc-shaped, which is smoother when in contact, so as to avoid direct wear.

[0034] In this embodiment, there are two joining elements 2 and they are arranged symmetrically along the center of the base 1. Of course, the number of joining elements 2 is not limited to two, which are arranged according to the specific receiving socket. .

[0035] Similarly, the cross-sectional profile of the joining element 2 is also correspondingly set according to the specific receiving socket.

[0036] In addition, the free end of the joining element 2 has an inclined surface structure, and the inclined surface structure can play a guiding role, making it easier to insert the joining element 2 into the receiving socket of the receiving socket.

[0037] In the description of the present invention, it should be noted that the terms "center", "vertical", "horizontal", "upper", "lower", "front", "rear", "left", "right" "," "vertical", "horizontal", "top", "bottom", "inner", "outer" and other directions or positional relations are based on the directions or positional relations shown in the drawings, and are only for the convenience of description The invention and simplified description do not indicate or imply that the pointed device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly defined and defined, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it may be a fixed connection or It is a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be a connection between two components. For those of ordinary skill in the art, the specific meaning of the above-mentioned terms in the present invention can be understood under specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0039] Note to technicians: Although the present invention has been described in accordance with the above specific embodiments, the inventive idea of the present invention is not limited to this invention. Any modification using the inventive idea will be included in the scope of protection of this patent. Inside.

Claims

[Claim 1] A connector, comprising a base (1), at least one joining element (2) extends from one side of the base (1), characterized in that: the joining element (2) extends along its extension direction A contact groove (21) is formed, and a protrusion (24) is formed in the contact groove (21).

[Claim 2] The connector according to claim 1, characterized in that: the protrusion (24) has a certain elasticity.

[Claim 3] The connector according to claim 2, characterized in that: the contact groove (21) is provided with a gap (22) in a "U"-shaped structure, and the gap (22) makes contact An elastic sheet (23) is formed in the groove (21), the elastic sheet (23) is substantially parallel to the contact groove (21), and the protrusion (24) is arranged on the elastic sheet (23).

[Claim 4] The connector according to claim 3, characterized in that: the free end of the elastic piece (23) is closer to the base (1) relative to its connection end with the joining element (2), and the The protrusion (24) is arranged on the free end of the elastic sheet (23).

[Claim 5] The connector according to claim 1, characterized in that: the surface of the protrusion (24) is arc-shaped.

[Claim 6] The connector according to claim 1, characterized in that there are two coupling elements (2), and they are arranged symmetrically along the center of the base (1).

[Claim 7] The connector according to claim 1, characterized in that: the cross-sectional profile of the coupling element (2) is "C"-shaped.

[Claim 8] The connector according to claim 1, characterized in that: the free end of the joining element (2) is in an inclined structure.

[Claim 9] A cutting unit, characterized in that it comprises a cutting assembly (20) and the connector (30) of any one of claims 1-8, and a base (1) of the connector (30) on the other side relative to the engagement element (2) is provided with a connecting element (3), the connector (30) is connected by a connecting element (3) and the cutting assembly ^(20).

[Claim 10] A hair cutting appliance, characterized in that it comprises a body (10), a cutting assembly (20), and the connector (30) according to any one of claims 1-8, the connector ( 30) The base (1) opposite to the other side of the joining element (2) is provided with a connecting element (3), the connecting The connector (30) is connected to the cutting assembly (20) through a connecting element (3), and the connector (30) is detachably connected to the body (10) through the connecting element (2).