CN217655477U - Coupler and kitchen appliance - Google Patents

Abstract

The utility model relates to the technical field of electrical apparatus, especially, relate to a coupler and kitchen appliance. The coupler comprises an upper cover, a lower seat and an elastic piece; the upper cover is provided with a first fixing groove, the lower seat is provided with a second fixing groove, and when the upper cover covers the lower seat, the first fixing groove and the second fixing groove correspond to each other and form a limiting hole together; the two limiting holes are arranged, the elastic piece is bent at the middle part, and the two ends of the elastic piece are respectively clamped into the two limiting holes to lock the upper cover and the lower seat. The kitchen appliance comprises the coupler. The utility model provides a coupler and kitchen appliance to alleviate the inconvenient technical problem of dismouting of the coupler that exists among the prior art.

Description

Coupler and kitchen appliance

Technical Field

The utility model relates to the technical field of electrical apparatus, especially, relate to a coupler and kitchen appliance.

Background

Along with the improvement of living standard of people, the use of kitchen appliances such as a wall breaking machine, a soybean milk machine and the like is more and more popular, so that the application of the coupler is increasingly wide. A coupler is a device that enables the coupling and redistribution of an optical signal in transmission in a coupling region of a particular configuration.

The coupler generally comprises an upper cover and a lower seat, wherein an insert rod is arranged in the upper cover, a support rod is arranged in the lower seat, and the upper cover is connected with the lower seat to enable the insert rod to be in contact connection with the support rod, so that signal transmission is realized.

However, in the prior art, the upper cover and the lower seat of the coupler are not firmly connected, and an additional fixing device is often required to be added to assist the fixing of the upper cover and the lower seat, so that the coupler is inconvenient to disassemble and assemble.

Therefore, the present application provides a new coupler and kitchen appliance for solving the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a coupler to alleviate the inconvenient technical problem of dismouting of the coupler that exists among the prior art.

An object of the utility model is also to provide a kitchen appliance to further alleviate the inconvenient technical problem of dismouting of the coupler that exists among the prior art.

Based on the first objective, the present invention provides a coupler, which includes an upper cover, a lower seat and an elastic member;

the upper cover is provided with a first fixing groove, the lower seat is provided with a second fixing groove, and when the upper cover covers the lower seat, the first fixing groove and the second fixing groove correspond to each other and form a limiting hole together;

the two limiting holes are formed, the elastic piece is bent in the middle, and the two ends of the elastic piece are clamped into the two limiting holes respectively to lock the upper cover and the lower seat.

Furthermore, the upper cover is provided with a limiting clamping groove, the middle part of the elastic part is clamped in the limiting clamping groove, and the limiting clamping groove enables the middle part of the elastic part to be bent.

Furthermore, the upper cover is provided with a covering cavity, and when the upper cover covers the lower seat, one side of the lower seat close to the upper cover is positioned in the covering cavity;

the cover closes the chamber and includes chamber top and chamber lateral wall, the chamber top is located the top of chamber lateral wall, first fixed slot set up in the upper cover is close to one side of chamber lateral wall.

Furthermore, the elastic piece is in clearance fit with the limiting hole.

Further, the upper cover is provided with a first positioning part, and the lower seat is provided with a second positioning part;

when the upper cover is covered on the lower seat, the first positioning part is abutted against the second positioning part, and at the moment, the first fixing groove and the second fixing groove correspond to each other and form the limiting hole together.

Furthermore, the upper cover is provided with a first accommodating cavity, the first signal transmission piece is fixedly arranged in the first accommodating cavity, the lower seat is provided with a second accommodating cavity, and the second signal transmission piece is fixedly arranged in the second accommodating cavity;

the edge the extending direction in chamber is held to the second, the second holds the chamber and runs through lower seat and be in lower seat is close to one side of upper cover forms the opening, the upper cover lid fits when lower seat, the bottom of first signal transmission spare passes the opening gets into the second holds the chamber and with second signal transmission spare contact is connected.

Furthermore, a sealing film is arranged at the opening, and an inserting seam is formed in the sealing film;

when the upper cover covers the lower seat, the bottom end of the first signal transmission piece penetrates through the insertion slot to enter the second accommodating cavity and is in contact connection with the second signal transmission piece.

Further, along the extending direction of the second accommodating cavity, the second accommodating cavity comprises a first cavity and a second cavity which are communicated, and the first cavity is close to the opening;

one end of the second signal transmission piece is positioned in the first cavity, and the other end of the second signal transmission piece is inserted into the second cavity, so that the first cavity and the second cavity can be separated; when the upper cover is covered on the lower seat, the bottom end of the first signal transmission piece can penetrate through the opening through the insertion slot to enter the first cavity and is in contact connection with the second signal transmission piece;

the lower seat is provided with a drain hole, one end of the drain hole is communicated with the first cavity, and the other end of the drain hole penetrates through the lower seat to enable the first cavity to be communicated to the outside of the lower seat through the drain hole.

Further, a sealing part is arranged in the second accommodating cavity, the sealing part is provided with a communication cavity, the sealing part divides the second accommodating cavity into the first cavity and the second cavity, and the first cavity is communicated with the second cavity through the communication cavity;

the second signal transmission piece is provided with a shaft shoulder, one end of the second signal transmission piece is located in the first cavity, the other end of the second signal transmission piece penetrates through the communicating cavity and is inserted into the second cavity, and the shaft shoulder abuts against the sealing portion to enable the first cavity and the second cavity to be separated.

Adopt above-mentioned technical scheme, the utility model discloses a coupler has following beneficial effect:

the limiting hole is provided with two, namely, the first fixing grooves of the upper cover are provided with two, the second fixing grooves of the lower seat are provided with two, and the two first fixing grooves and the two second fixing grooves are in one-to-one correspondence respectively when the upper cover is covered on the lower seat, so that one first fixing groove and one second fixing groove correspond to form one limiting hole together, and the other first fixing groove and the other second fixing groove correspond to form the other limiting hole together.

The coupler is bent at the middle part through the elastic piece, and the two ends of the elastic piece are clamped into the two limiting holes respectively, so that the upper cover is clamped on the lower seat, the upper cover and the lower seat are locked, the upper cover is fixedly connected with the lower seat, the two ends of the elastic piece are clamped in the limiting holes in a bending mode, the upper cover is connected with the lower seat more firmly, and an additional fixing device is not needed to be added to assist the fixing of the upper cover and the lower seat.

When the upper cover needs to be fixed on the lower seat, the upper cover only needs to be covered on the lower seat, the first fixing groove and the second fixing groove correspondingly and jointly form a limiting hole, and then the two ends of the elastic piece are respectively inserted into the two limiting holes. When the upper cover needs to be detached from the lower seat, only the two ends of the elastic piece need to be respectively drawn out from the two limiting holes, and then the upper cover is separated from the lower seat. Therefore, the upper cover is fixed on the lower seat and is detached from the lower seat, so that the operation is simple and convenient, and the technical problem of inconvenience in detaching and installing the coupler in the prior art is solved.

Based on the second objective, the utility model provides a kitchen appliance, this kitchen appliance includes the coupler.

Adopt above-mentioned technical scheme, the utility model discloses a kitchen appliance has following beneficial effect:

by providing the coupler in the kitchen appliance, the kitchen appliance accordingly has all the advantages of the coupler, which are not described in detail herein.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to these drawings without inventive efforts.

Fig. 1 is an exploded view of a coupler according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of a coupler provided by an embodiment of the present invention;

fig. 3 is a cross-sectional view of a coupler according to an embodiment of the present invention (a state where the upper cover is separated from the lower seat);

fig. 4 is a second cross-sectional view of the coupler according to the embodiment of the present invention (the upper cover is separated from the lower seat);

fig. 5 is one of cross-sectional views of a lower base of a coupler according to an embodiment of the present invention;

fig. 6 is a second cross-sectional view of the lower seat of the coupler according to the embodiment of the present invention.

Reference numerals are as follows:

1, covering the cover; 11-a first fixation groove; 12-a limiting part; 13-a first positioning portion; 14-covering the cavity;

2-lower seat; 21-a second fixation groove; 22-a second location portion; 23-a second containing cavity; 231-a first cavity; 232-a second cavity; 24-drainage holes;

3-an elastic member;

4-limiting holes;

5-a first signal transmission member;

6-a second signal transmission member; 61-shaft shoulder;

7-sealing film;

8-a sealing part; 81-communicating chamber.

Detailed Description

The technical solutions of the present invention will be described more clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "middle part", "upper", "lower", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

Referring to fig. 1 in combination with fig. 3, the present embodiment provides a coupler, which includes an upper cover 1, a lower seat 2 and an elastic member 3; the upper cover 1 is provided with a first fixing groove 11, the lower seat 2 is provided with a second fixing groove 21, and when the upper cover 1 covers the lower seat 2, the first fixing groove 11 and the second fixing groove 21 correspond to each other and form a limiting hole 4 together; the two limiting holes 4 are arranged, the elastic piece 3 is bent at the middle part, and the two ends of the elastic piece 3 are respectively clamped into the two limiting holes 4 to lock the upper cover 1 and the lower seat 2.

In this case, the two limiting holes 4 are provided, that is, the first fixing grooves 11 of the upper cover 1 are provided with two, the second fixing grooves 21 of the lower seat 2 are provided with two, and in this arrangement, when the upper cover 1 covers the lower seat 2, the two first fixing grooves 11 and the two second fixing grooves 21 respectively correspond to each other one by one, so that one first fixing groove 11 and one second fixing groove 21 correspond to each other to form one limiting hole 4, and the other first fixing groove 11 and the other second fixing groove 21 correspond to each other to form the other limiting hole 4.

This coupler is buckled in middle part department through elastic component 3, and both ends card respectively go into two spacing downtheholes 4 in, make 1 card of upper cover locate lower seat 2, realized the locking of upper cover 1 with lower seat 2 to upper cover 1 and lower seat 2 fixed connection, thereby elastic component 3 buckles and makes its both ends chucking in spacing downthehole 4, makes the upper cover 1 more firm with lower seat 2's connection, therefore need not increase extra fixing device and assist the fixing of the two.

When the upper cover 1 needs to be fixed on the lower seat 2, the upper cover 1 only needs to be covered on the lower seat 2, the first fixing groove 11 and the second fixing groove 21 correspond to form the limiting holes 4 together, and then the two ends of the elastic element 3 are inserted into the two limiting holes 4 respectively. When the upper cover 1 needs to be detached from the lower seat 2, only the two ends of the elastic piece 3 need to be respectively pulled out from the two limiting holes 4, and then the upper cover 1 is separated from the lower seat 2. Therefore, the operation of fixing the upper cover 1 on the lower seat 2 and detaching the upper cover 1 from the lower seat 2 is simple and convenient, and the technical problem of inconvenience in dismounting and mounting of the coupler in the prior art is solved.

Alternatively, the cross-sectional shape of the stopper hole 4 in the direction perpendicular to the extending direction of the stopper hole 4 is circular, oblong, irregular, or the like, and is not limited herein.

Preferably, referring to fig. 1, in the present embodiment, the upper cover 1 is provided with a limiting slot, the middle portion of the elastic element 3 is clamped in the limiting slot, and the limiting slot bends the middle portion of the elastic element 3.

That is to say, the extending direction of the limiting clamping groove is a curve or a broken line, so that the elastic part 3 clamped in the limiting clamping groove is bent. Preferably, referring to fig. 1, in this embodiment, the extending direction of the limiting slot is a curve, so that the bending transition of the elastic element 3 is smoother, and the elastic element 3 is prevented from being damaged to a certain extent.

Optionally, the limiting slot is directly disposed on the upper cover 1, or, referring to fig. 1 and fig. 4, in this embodiment, the upper cover 1 is fixed with the limiting portion 12, and the limiting slot is disposed on the limiting portion 12, for example, the limiting portion 12 is fixedly connected to the upper cover 1 by clamping, fastening, screwing, bonding, or welding.

Wherein, first aspect, spacing draw-in groove makes the middle part department of elastic component 3 be fixed in upper cover 1, and second aspect, spacing draw-in groove makes the state of buckling of elastic component 3 obtain stably and keep reliably to make the more firm card in locating spacing hole 4 in the both ends of elastic component 3, and then make upper cover 1 and lower seat 2 be connected more firmly.

Preferably, referring to fig. 2, in the present embodiment, the elastic element 3 is in clearance fit with the limiting hole 4.

That is to say, the aperture of the limiting hole 4 is larger than the outer diameter of the elastic element 3, and after the elastic element 3 is clamped in the limiting hole 4, a gap is formed between the elastic element 3 and the hole wall of the limiting hole 4.

Such setting makes 1 lid of upper cover fit in lower 2 backs, conveniently inserts elastic component 3 in spacing hole 4 to it is more convenient to make the operation that upper cover 1 connects in lower 2, and when needing to dismantle upper cover 1 from lower 2, can make elastic component 3 at spacing downthehole 4 internalization at first, in order to relieve the chucking state of elastic component 3 in spacing hole 4, be convenient for take elastic component 3 out from spacing hole 4, thereby make the operation that upper cover 1 dismantled from lower 2 more convenient.

Preferably, referring to fig. 2 and fig. 3, in the present embodiment, the upper cover 1 is provided with a first positioning portion 13, and the lower seat 2 is provided with a second positioning portion 22; when the upper cover 1 covers the lower seat 2, the first positioning portion 13 abuts against the second positioning portion 22, and at this time, the first fixing groove 11 and the second fixing groove 21 correspond to each other and form the limiting hole 4 together.

The coupler keeps the state that the upper cover 1 covers the lower seat 2 by abutting the first positioning part 13 against the second positioning part 22, so that the first fixing groove 11 and the second fixing groove 21 accurately correspond to form the limiting hole 4, and the influence of dislocation of the first fixing groove 11 and the second fixing groove 21 on normal insertion of the elastic element 3 when the upper cover 1 covers the lower seat 2 is prevented.

Preferably, referring to fig. 3, in the present embodiment, the upper cover 1 is provided with a covering cavity 14, and when the upper cover 1 covers the lower seat 2, one side of the lower seat 2 close to the upper cover 1 is located in the covering cavity 14; the covering cavity 14 comprises a cavity top and a cavity side wall, the cavity top is located at the top end of the cavity side wall, and the first fixing groove 11 is formed in one side, close to the cavity side wall, of the upper cover 1.

When the upper cover 1 is covered on the lower seat 2, one side of the lower seat 2 close to the upper cover 1 is positioned in the covering cavity 14, so that the sealing property of the upper cover 1 connected with the lower seat 2 is improved, and impurities such as water stain or dust are prevented from entering from a gap between the upper cover 1 and the lower seat 2 to a certain degree to pollute the coupler.

In addition, the first fixing groove 11 is disposed on a side of the upper cover 1 close to the cavity sidewall, and therefore the second fixing groove 21 is also disposed on a side of the lower seat 2 close to the cavity sidewall, so that when the upper cover 1 covers the lower seat 2, the first fixing groove 11 and the second fixing groove 21 correspond to each other to form the limiting hole 4. Such setting, when upper cover 1 lid fits lower 2, the both ends of elastic component 3 are gone into respectively and are made the upper cover 1 card locate lower 2 in two spacing holes 4 to upper cover 1 locks in lower 2, has realized 1 fixed connection of upper cover in lower 2.

Preferably, referring to fig. 2, in the present embodiment, the upper cover 1 is provided with a first accommodating cavity, the first signal transmission member 5 is fixedly disposed in the first accommodating cavity, the lower seat 2 is provided with a second accommodating cavity 23, and the second signal transmission member 6 is fixedly disposed in the second accommodating cavity 23; along the extending direction of the second accommodating cavity 23, the second accommodating cavity 23 penetrates through the lower base 2 and forms an opening at one side of the lower base 2 close to the upper cover 1, and when the upper cover 1 covers the lower base 2, the bottom end of the first signal transmission part 5 penetrates through the opening to enter the second accommodating cavity 23 and be in contact connection with the second signal transmission part 6.

By means of the arrangement, transmission of coupler signals is achieved.

Optionally, the first signal transmission member 5 and the second signal transmission member 6 are pins, rods, or inserts, and the shape and structure thereof are not limited, and the two contact members only need to realize effective signal transmission.

Preferably, referring to fig. 2, in the present embodiment, a plurality of first accommodating cavities of the upper cover 1 are provided, so that a plurality of first signal transmission members 5 are provided, a plurality of second accommodating cavities 23 of the lower seat 2 are provided, so that a plurality of second signal transmission members 6 are provided, and the plurality of first signal transmission members 5 correspond to the plurality of second signal transmission members 6 one to one, so as to implement multi-channel transmission of signals.

Preferably, in this embodiment, the first signal transmission member 5 is the elastic member 3 which is stretchable, when the upper cover 1 is separated from the lower seat 2, the first signal transmission member 5 extends, when the upper cover 1 covers the lower seat 2, the first signal transmission member 5 is in contact connection with the second signal transmission member 6, and at this time, the first signal transmission member 5 is compressed by the second signal transmission member 6 to generate elastic deformation, so that the contact connection between the first signal transmission member 5 and the second signal transmission member 6 is more reliable, and effective transmission of signals is realized.

Preferably, referring to fig. 1 in combination with fig. 2 and 6, in the present embodiment, a sealing film 7 is disposed at the opening, and the sealing film 7 is provided with an inserting seam; when the upper cover 1 is covered on the lower seat 2, the bottom end of the first signal transmission piece 5 passes through the opening through the insertion slot to enter the second accommodating cavity 23 and is in contact connection with the second signal transmission piece 6.

It should be noted that the sealing film 7 is a thin film structure, and when the bottom end of the first signal transmission member 5 passes through the insertion slit through the opening, the insertion slit of the sealing film 7 can open the area corresponding to the first signal transmission member 5, thereby preventing water stain and dust from passing through.

Such setting, the bottom of first signal transmission piece 5 gets into the second and holds the chamber 23 in with the contact of second signal transmission piece 6 when being connected, the seal membrane 7 can hold the clearance seal between the chamber 23 with first signal transmission piece 5 and second, prevents impurity such as water stain, dust and gets into the second and holds chamber 23 to effectively prevent problems such as coupler short circuit, electric leakage or humidity.

Alternatively, the shape of the insertion slit is a straight line shape, a cross shape, or the like, and the shape thereof is not limited as long as it is possible to allow the first signal transmission member 5 to pass through the insertion slit into the second accommodation chamber 23.

Preferably, referring to fig. 6, in the present embodiment, along the extending direction of the second accommodating cavity 23, the second accommodating cavity 23 includes a first cavity 231 and a second cavity 232 which are communicated with each other, and the first cavity 231 is close to the opening; one end of the second signal transmission member 6 is positioned in the first cavity 231, and the other end is inserted into the second cavity 232, so that the first cavity 231 and the second cavity 232 can be spaced; when the upper cover 1 is covered on the lower seat 2, the bottom end of the first signal transmission part 5 can pass through the opening through the insertion slot to enter the first cavity 231 and be in contact connection with the second signal transmission part 6.

The lower base 2 is provided with a drainage hole 24, one end of the drainage hole 24 is communicated with the first cavity 231, and the other end penetrates through the lower base 2 so that the first cavity 231 is communicated to the outside of the lower base 2 through the drainage hole 24.

With this arrangement, even if water stain enters the first chamber 231 through the sealing film 7, since the second signal transmission member 6 is inserted into the second chamber 232, the first chamber 231 can be spaced apart from the second chamber 232, preventing the water stain in the first chamber 231 from entering the second chamber 232 to some extent and causing a short circuit, leakage of electricity, or moisture of the coupler. In addition, water stains in the first chamber 231 can be discharged to the outside of the lower seat 2 through the water discharge hole 24, so that the purpose of water discharge is achieved, and accumulation of water stains is prevented.

Preferably, referring to fig. 5 and fig. 6, in the present embodiment, a sealing portion 8 is disposed in the second accommodating chamber 23, the sealing portion 8 is provided with a communicating chamber 81, the sealing portion 8 divides the second accommodating chamber 23 into a first chamber 231 and a second chamber 232, and the first chamber 231 and the second chamber 232 are communicated through the communicating chamber 81; the second signal transmission member 6 is provided with a shaft shoulder portion 61, one end of the second signal transmission member 6 is located in the first cavity 231, the other end of the second signal transmission member passes through the communication cavity 81 and is inserted into the second cavity 232, and the shaft shoulder portion 61 abuts against the sealing portion 8 to separate the first cavity 231 from the second cavity 232.

With the arrangement, after the second signal transmission member 6 is inserted into the second cavity 232, the first cavity 231 is separated from the second cavity 232, so that water stain in the first cavity 231 is prevented from entering the second cavity 232 to cause short circuit, electric leakage or moisture damage of the coupler.

Example two

The second embodiment provides a kitchen appliance, which comprises the coupler of the first embodiment, the technical features of the coupler disclosed in the first embodiment are also applicable to the second embodiment, and the technical features of the coupler disclosed in the second embodiment are not repeated.

The kitchen appliance that this embodiment provided includes above-mentioned coupler, has further alleviated the inconvenient technical problem of dismouting of the coupler that exists among the prior art to be convenient for kitchen appliance's maintenance and maintenance.

Optionally, the kitchen appliance is a wall breaking machine or a soybean milk machine, etc.

The kitchen appliance of this embodiment has the advantages of the coupler of the first embodiment, which have been described in detail in the first embodiment and will not be repeated here.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the scope of the invention in its corresponding aspects.

Claims (10)

1. A coupler is characterized by comprising an upper cover (1), a lower seat (2) and an elastic piece (3);

the upper cover (1) is provided with a first fixing groove (11), the lower seat (2) is provided with a second fixing groove (21), and when the upper cover (1) covers the lower seat (2), the first fixing groove (11) and the second fixing groove (21) correspond to each other and form a limiting hole (4) together;

the two limiting holes (4) are formed, the elastic piece (3) is bent at the middle part, and the two ends of the elastic piece (3) are clamped into the two limiting holes (4) respectively to lock the upper cover (1) and the lower seat (2).

2. The coupler according to claim 1, wherein the upper cover (1) is provided with a limiting clamping groove, the middle part of the elastic member (3) is clamped in the limiting clamping groove, and the limiting clamping groove bends the middle part of the elastic member (3).

3. The coupler according to claim 1, characterized in that the upper cover (1) is provided with a covering cavity (14), and when the upper cover (1) covers the lower seat (2), one side of the lower seat (2) close to the upper cover (1) is positioned in the covering cavity (14);

the cover cavity (14) comprises a cavity top and a cavity side wall, the cavity top is located at the top end of the cavity side wall, and the first fixing groove (11) is formed in one side, close to the cavity side wall, of the upper cover (1).

4. Coupler according to claim 1, characterized in that the elastic element (3) is clearance-fitted with the limiting hole (4).

5. The coupling according to claim 1, wherein the upper cover (1) is provided with a first positioning portion (13), and the lower seat (2) is provided with a second positioning portion (22);

when the upper cover (1) is covered on the lower seat (2), the first positioning part (13) is abutted against the second positioning part (22), and at the moment, the first fixing groove (11) and the second fixing groove (21) correspond to each other and form the limiting hole (4) together.

6. Coupler according to any one of claims 1 to 5, characterized in that the upper cover (1) is provided with a first housing cavity in which the first signal transmission member (5) is fixedly arranged, the lower seat (2) is provided with a second housing cavity (23) in which the second signal transmission member (6) is fixedly arranged;

along the extending direction of second holding chamber (23), second holding chamber (23) run through lower seat (2) and be in lower seat (2) are close to one side formation opening of upper cover (1), when upper cover (1) lid fits lower seat (2), the bottom of first signal transmission piece (5) passes the opening gets into second holding chamber (23) and with second signal transmission piece (6) contact is connected.

7. The coupler according to claim 6, wherein a sealing film (7) is arranged at the opening, and a plug-in seam is arranged on the sealing film (7);

when the upper cover (1) covers the lower seat (2), the bottom end of the first signal transmission piece (5) penetrates through the opening through the insertion seam to enter the second accommodating cavity (23) and is in contact connection with the second signal transmission piece (6).

8. The coupler according to claim 7, wherein, along the extension direction of the second housing cavity (23), the second housing cavity (23) comprises a first cavity (231) and a second cavity (232) which are communicated, the first cavity (231) being close to the opening;

one end of the second signal transmission piece (6) is positioned in the first cavity (231), and the other end of the second signal transmission piece is inserted into the second cavity (232) so that the first cavity (231) can be separated from the second cavity (232); when the upper cover (1) is covered on the lower seat (2), the bottom end of the first signal transmission piece (5) can penetrate through the opening through the insertion seam to enter the first cavity (231) and is in contact connection with the second signal transmission piece (6);

the lower seat (2) is provided with a drain hole (24), one end of the drain hole (24) is communicated with the first cavity (231), and the other end of the drain hole penetrates through the lower seat (2) to enable the first cavity (231) to be communicated to the outside of the lower seat (2) through the drain hole (24).

9. The coupler according to claim 8, wherein a sealing portion (8) is provided in the second accommodating chamber (23), the sealing portion (8) is provided with a communicating chamber (81), the sealing portion (8) divides the second accommodating chamber (23) into the first chamber (231) and the second chamber (232), and the first chamber (231) and the second chamber (232) are communicated through the communicating chamber (81);

the second signal transmission piece (6) is provided with a shaft shoulder portion (61), one end of the second signal transmission piece (6) is located in the first cavity (231), the other end of the second signal transmission piece penetrates through the communication cavity (81) to be inserted into the second cavity (232), and the shaft shoulder portion (61) abuts against the sealing portion (8) to enable the first cavity (231) and the second cavity (232) to be separated.

10. A kitchen appliance, characterized in that it comprises a coupler according to any one of claims 1 to 9.

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