CN205693924U - The lock body of interlocking switch and microwave oven - Google Patents

Abstract

This utility model discloses lock body and the microwave oven of a kind of interlocking switch, and wherein, the lock body of interlocking switch includes substrate, tactile disk part, elastic component and multiple microswitch；Wherein, tactile disk part and substrate pivot joint, and the axis that tactile disk part rotates is vertical with substrate；Microswitch is positioned at the periphery of tactile disk part, and the contact of microswitch is towards tactile disk part；The side face of tactile disk part has the cause radial facing coordinated with outside pressing piece, and the multiple contact surfaces coordinated with contact, is formed with, between adjacent two contact surfaces, the bit-avoiding slot keeping away a contact；When locking, outside pressing piece abuts with causing radial facing, and tactile disk part rotates forward, and each contact surface abuts with corresponding contact, triggers each microswitch；During release, tactile disk part rotates backward under the effect of elastic component, and each contact surface leaves the contact of correspondence, and each microswitch resets.The lock body of this utility model interlocking switch can switch each microswitch exactly.

Description

Lock body of interlocking switch and microwave oven

Technical Field

The utility model relates to a microwave oven field, in particular to lock body and microwave oven of interlock switch.

Background

The door hook of the interlocking switch of the microwave oven is fixedly connected with the door body of the microwave oven, the lock body is arranged in the door body of the microwave oven, and in order to prevent microwave leakage, when the door body of the microwave oven is opened or closed, the micro switch in the interlocking switch needs to be triggered or reset according to a preset sequence under the action of the door hook.

According to the existing interlocking control switch, a door hook is in touch fit with a plurality of cams, each cam is matched with a corresponding micro switch, namely the door hook realizes the safety control of the microwave oven in a multipoint touch mode, the assembly precision among all parts is limited, and the reliability of the whole control is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a lock body of interlocking switch, the technical problem who aims at solving current interlocking switch's lock body when the AND gate hook cooperation, can't switch micro-gap switch reliably and accomplish control.

In order to achieve the above object, the present invention provides a lock body of an interlock switch, which is used to cooperate with an external pressing member to realize interlock control, wherein the lock body comprises a base plate, a touch panel member, an elastic member and a plurality of micro switches; wherein,

the touch panel piece is pivoted with the base plate, and the rotating axis of the touch panel piece is vertical to the base plate; the micro switch is positioned on the periphery of the touch plate piece, and the contact of the micro switch faces the touch plate piece;

the peripheral surface of the touch panel piece is provided with a rotating surface matched with an external pressing piece and a plurality of contact surfaces matched with the contacts, and a position avoiding groove for avoiding the contacts is formed between every two adjacent contact surfaces;

when the locking device is locked, the external pressing piece is abutted with the rotating surface, the touch disc piece rotates in the positive direction, and each contact surface is abutted with the corresponding contact to trigger each microswitch;

when the touch panel is released, the touch panel piece reversely rotates under the action of the elastic piece, each contact surface leaves the corresponding contact, and each microswitch resets.

Preferably, the touch panel comprises a plate-shaped panel body and a flange vertically arranged at the edge of the panel body, and the rotation surface, the contact surface and the avoiding groove are formed on the flange.

Preferably, the avoiding groove is provided with an inclined plane connected with the contact surface, and when the touch panel piece rotates forwards, the contact is firstly abutted against the inclined plane and then abutted against the contact surface.

Preferably, the tray body is provided with a mounting hole, and a clamping groove structure is convexly arranged at the position of the substrate corresponding to the mounting hole; the elastic piece is a torsion spring, one leg of the elastic piece is abutted to the inner wall surface of the mounting hole, and the other leg of the elastic piece is abutted to the groove wall surface of the clamping groove structure.

Preferably, the card slot structure includes a side wall and a top wall, the side wall is perpendicular to the substrate, the top wall is disposed at an end of the side wall far away from the substrate, and the elastic member is located between the top wall and the substrate.

Preferably, the base plate is provided with a rotating shaft, and the disc body is provided with a shaft hole matched with the rotating shaft.

Preferably, the plurality of micro switches comprise a primary switch, a secondary switch and a monitoring switch, and when the micro switches are locked, the touch panel piece is abutted with the contacts of the monitoring switch, the secondary switch and the primary switch in sequence; when released, the touch pad member sequentially leaves the contacts of the primary switch, the secondary switch and the monitor switch.

Preferably, the size relationship of the axis angle of each contact surface relative to the axis of rotation of the touch pad piece is that the contact surface corresponding to the monitoring switch is larger than the contact surface corresponding to the secondary switch and larger than the contact surface corresponding to the secondary switch.

Preferably, at least two pin holes are formed in the body of the microswitch, a plurality of positioning columns matched with the pin holes are arranged on the base plate, and the microswitch is sleeved on the positioning columns and detachably fixed with the base plate.

The utility model also provides a microwave oven, which comprises a door hook lock body, wherein the lock body comprises a base plate, a touch plate part, an elastic part and a plurality of micro-switches; wherein,

the touch panel piece is pivoted with the base plate, and the rotating axis of the touch panel piece is vertical to the base plate; the micro switch is positioned on the periphery of the touch plate piece, and the contact of the micro switch faces the touch plate piece;

the peripheral surface of the touch panel piece is provided with a rotating surface matched with the door hook and a plurality of contact surfaces matched with the contacts, and a position avoiding groove for avoiding the contacts is formed between every two adjacent contact surfaces;

when the door hook is locked, the door hook is abutted against the rotating surface, the touch disc piece rotates in the positive direction, each contact surface is abutted against the corresponding contact, and each microswitch is triggered;

when the touch panel is released, the touch panel piece reversely rotates under the action of the elastic piece, each contact surface leaves the corresponding contact, and each microswitch resets.

Preferably, the lock body is located in a body of the microwave oven, and the door hook is arranged on the door body of the microwave oven.

Preferably, the microwave oven has an overall cylindrical shape.

The utility model discloses interlock switch's lock body is through setting up a plurality of contact surfaces on the global of touch panel spare for with a plurality of micro-gap switch's contact butt, the door hook only need touch the switching that touch panel spare just can realize a plurality of micro-gap switch, so, has improved the stability of control.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of a lock body of an interlock switch of the present invention;

FIG. 2 is a schematic top view of the interlock switch of FIG. 1;

FIG. 3 is a schematic front view of the interlock switch of FIG. 2;

FIG. 4 is a schematic cross-sectional view taken along line IV-IV of FIG. 2;

FIG. 5 is a schematic top view of the interlock switch door hook of FIG. 1 in another state;

FIG. 6 is a schematic front view of the interlock switch of FIG. 5;

FIG. 7 is a schematic cross-sectional view taken along line VII-VII of FIG. 5;

FIG. 8 is an exploded view of the interlock switch of FIG. 1;

fig. 9 is a schematic view of the interlock switch of fig. 1 from another angle.

The reference numbers illustrate:

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious 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 efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a lock body of interlock switch.

In the embodiment of the present invention, as shown in fig. 1, fig. 3, fig. 4 and fig. 8, the lock body of the interlock switch is used to cooperate with an external pressing member to realize the interlock control, and the lock body includes a base plate 1, a touch panel member 3, an elastic member 5 and a plurality of micro switches; wherein,

the touch panel piece 3 is pivoted with the base plate 1, and the axis of rotation of the touch panel piece 3 is vertical to the base plate 1; the micro switch is positioned at the periphery of the touch plate part 3, and the contact 70a of the micro switch faces the touch plate part 3;

the peripheral surface of the touch plate member 3 is provided with a rotation-causing surface 321 matched with the door hook 4 and a plurality of contact surfaces 322 matched with the contact 70a, and a position-avoiding groove 323 for avoiding the contact 70a is formed between two adjacent contact surfaces 322;

referring to fig. 5 to 7, when the locking device is locked, the external pressing member abuts against the spiral surface 321, the touch panel member 3 rotates in the forward direction, and each contact surface 322 abuts against the corresponding contact 70a to trigger each micro switch;

referring to fig. 2 to 4, when released, the contact plate member 3 reversely rotates under the action of the elastic member 5, each contact surface 322 leaves the corresponding contact 70a, and each micro switch is reset.

In this embodiment, the external pressing member is generally a door hook 4 (not shown in the hook portion) fixedly connected to the door body of the microwave oven, and when the door body of the microwave oven is closed, the door hook 4 is locked with an elastic buckle of the microwave oven body, and the elastic buckle is further connected to the door opening button of the microwave oven. The insertion direction of the door hook 4 is parallel to the plane of the base plate 1, and the base plate 1 is used for providing mounting support for other parts of the lock body and ensuring the position matching relationship among the parts.

The peripheral surface of the touch panel 3 is provided with a plurality of contact surfaces 322 at intervals for touching and separating the contacts 70a of the corresponding micro switches according to a preset sequence, and the clearance groove 323 is provided to prevent the corresponding micro switches from generating non-preset interference. The elastic member 5 serves to restore the contact plate member 3 after the force of the door hook 4 is removed.

The number of the micro switches can be two, three or four, and the micro switches usually have the following main functions according to the design requirements: the control of the general circuit of the microwave oven, the control of the door opening and closing detection circuit of the microwave oven and the control of the switch circuit.

The utility model discloses interlock switch's lock body is through setting up a plurality of contact surfaces 322 on the global of touch panel spare 3 for with a plurality of micro-gap switch's contact 70a butt, door hook 4 only need touch panel spare 3 just can realize a plurality of micro-gap switch's switching, so, improved the stability of control.

Furthermore, because the utility model discloses a lock body realizes with the cooperation of door hook 4 that interlocking control required part is less, consequently, the structure is compacter, and the installation is limited less, both can use the microwave oven that the side opened the door, also can be applied to the microwave oven that the top opened the door.

Further, referring to fig. 8 and 9, in an embodiment, the contact plate 3 includes a plate 31 and a flange 32 vertically disposed at an edge of the plate 31, and the spiral surface 321, the contact surface 322 and the avoiding groove 323 are formed on the flange 32.

In the present embodiment, it can be understood that if the contact disk member 3 is simply applied with a thin-walled structure, the area of the contact surface 322 that can be formed by the peripheral surface of the contact disk member 3 is relatively small, so that when the axial installation dimension of the contact disk member 3 fluctuates greatly, it may not be possible to ensure that the contact surface 322 contacts with the contact 70a of the corresponding micro switch. By providing the flange 32, the width of the contact surface 322 in the axial direction can be increased, so that the stability of the engagement of the contact surface 322 with the contact 70a can be improved.

Further, in an embodiment, the avoiding groove 323 has an inclined surface 324 connected to the contact surface 322, and when the touch pad 3 rotates in the forward direction, the contact 70a abuts against the inclined surface 324 and then abuts against the contact surface 322.

In the present embodiment, it is understood that although the ends of the contacts 70a are generally provided with rounded corners, if the angle between the groove wall surface of the avoiding groove 323 adjacent to the contact surface 322 and the corresponding contact surface 322 is too small, the contacts 70a may be jammed in the avoiding groove 323. Therefore, by providing the inclined surface 324 connected to the contact surface 322 in the relief groove 323, it is possible to ensure that the contact 70a smoothly slides to be engaged with the corresponding contact surface 322. The inclined surface 324 mainly plays a role of guiding, and thus, the inclined surface 324 may be any one of a plane surface, a concave arc surface, or a convex arc surface.

Furthermore, a mounting hole 311 is formed in the tray body 31, and a slot structure 11 is convexly arranged at a position of the substrate 1 corresponding to the mounting hole 311; the elastic member 5 is a torsion spring, one leg portion of the elastic member 5 abuts against the inner wall surface of the mounting hole 311, and the other leg portion abuts against the groove wall surface of the card slot structure 11.

In this embodiment, since the mounting hole 311 is formed in the plate 31, which has no effect on the function of the touch plate 3 in the previous embodiment, and the mounting structure of the elastic member 5, i.e., the card slot structure 11, can be disposed at a position of the substrate 1 corresponding to the mounting hole 311, the lock body is more compact, and the occupied mounting space is reduced.

Further, the card slot structure 11 includes a side wall 111 and a top wall 112, the side wall 111 is perpendicular to the substrate 1, the top wall 112 is disposed at an end of the side wall 111 far from the substrate 1, and the elastic element 5 is located between the top wall 112 and the substrate 1.

In this embodiment, the top wall 112 of the card slot structure 11 can limit the elastic member 5 in the direction away from the substrate 1, and the anti-dropping capability of the elastic member 5 in the vibration environment can be enhanced. Preferably, in order to facilitate the molding, the through groove 15 is disposed at a position of the substrate 1 opposite to the top wall 112, so that the demolding is facilitated when the substrate 1 and the slot structure 11 are integrally produced by using an injection molding process, and in addition, the installation condition of the elastic member 5 is also conveniently inspected.

Further, a rotating shaft 12 is disposed on the substrate 1, and a shaft hole 312 adapted to the rotating shaft 12 is disposed on the disc body 31. In this embodiment, the rotating shaft 12 is disposed on the substrate 1, and during installation, the touch panel 3 is directly sleeved on the rotating shaft 12, preferably, in order to achieve the axial limit of the touch panel 3, a stopper 121 is disposed at one end of the rotating shaft 12 away from the substrate 1, and the stopper 121 abuts against one surface of the tray body 31 away from the substrate 1. Specifically, a boss 314 is arranged on one surface of the tray body 31 facing away from the substrate 1, and the shaft hole 312 is arranged on the boss 314, so that the length of the shaft hole 312 can be increased, and a slot 313 matched with the stopper protrusion is arranged on the inner wall surface of the shaft hole 312.

Further, the plurality of micro switches include a primary switch 71, a secondary switch 72 and a monitor switch 73, and when locked, the touch panel 3 is abutted against the monitor switch 73, the secondary switch 72 and a contact 70a of the primary switch 71 in sequence; when released, the pad member 3 moves away from the contacts 70a of the primary switch 71, the secondary switch 72, and the monitor switch 73 in this order.

In the present embodiment, the primary switch 71 is used for controlling the main circuit of the microwave oven, the secondary switch 72 is used for controlling the door opening/closing detection circuit of the microwave oven, and the monitor switch 73 is used for controlling the switching circuits of the primary switch 71 and the secondary switch 72.

Further, the axial angle of each contact surface 322 with respect to the axial center of rotation of the touch panel member 3 is such that the contact surface 322 corresponding to the monitor switch 73 is larger than the contact surface 322 corresponding to the secondary switch 72.

In this embodiment, when the distances between the contact surfaces 322 and the axial center of the touch pad member 3 are equal, the length of each contact surface 322 along the circumferential direction of the touch pad member 3 is in a size relationship that the contact surface 322 corresponding to the monitor switch 73 is larger than the contact surface 322 corresponding to the secondary switch 72 and larger than the contact surface 322 corresponding to the secondary switch 72.

Furthermore, at least two pin holes 70b are formed in the body of the microswitch, a plurality of positioning columns 17 matched with the pin holes 70b are arranged on the substrate 1, and the microswitch is sleeved on the positioning columns 17 and is detachably fixed with the substrate 1.

In this embodiment, the pin hole 70b for setting the micro switch is matched with the positioning column 17 on the substrate 1, so that the position accuracy of the micro switch can be ensured, and then the contact 70a of the micro switch can be ensured to be matched with the contact surface 322 of the touch panel 3. Preferably, in order to realize the detachable fixation of the micro switches, a plurality of buckles 14 are convexly arranged on the base plate 1, and each micro switch is clamped between two buckles 14.

Furthermore, the lock body of the interlocking switch also comprises a baffle plate, a sliding surface 21 is formed on the baffle plate 2, and a through hole 22 is formed in the middle of the baffle plate 2; the base plate 1 is provided with a chute structure, and the baffle 2 is in sliding fit with a chute of the chute structure; the door hook 4 has a long rod 41 and a short rod 42 arranged in parallel,

referring to fig. 5 to 7, during locking, the long rod 41 abuts against the sliding surface 21, the through hole 22 abuts against the short rod 42, and the short rod 42 penetrates through the through hole 22 and abuts against the screwing surface 321, so that the touch panel 3 rotates forwards;

referring to fig. 2 to 4, after the release, the short rod 42 exits the through hole 22, and under the action of the elastic member 6, the through hole 22 is staggered from the short rod 42, and the touch panel member 3 is reset under the action of the elastic member 5.

In the embodiment, by additionally arranging the baffle 2, the baffle 2 is matched with the sliding groove structure arranged on the substrate 1, and initially, the through holes 22 of the baffle 2 are staggered with the short rods 42, so that foreign objects cannot touch the touch panel 3 through the jacks corresponding to the short rods 42; on the other hand, if a foreign object is engaged with the sliding surface 21 of the baffle 2 through the insertion hole corresponding to the long rod 41, the touch plate 3 cannot be touched and the touch plate 3 cannot be rotated without the simultaneous action of another foreign object. Therefore, the baffle 2 can prevent foreign objects from touching the touch plate 3, and the micro switch is prevented from being touched by mistake, so that the safety of the interlocking switch is enhanced.

Further, referring to fig. 8 and fig. 9, in an embodiment, the sliding groove structure includes a first supporting plate 162 and a second supporting plate 163 vertically disposed on the substrate 1, and the first supporting plate 162, the second supporting plate 163 and the substrate 1 enclose to form a sliding groove;

an opening 164 is formed between the first support plate 162 and the second support plate 163, and when the via 22 is abutted against the short bar 42, the opening 164 is opposite to the via 22.

In this embodiment, the first support plate 162 and the second support plate 163 limit the baffle 2 in the insertion direction of the door hook 4, the base plate 1 can limit the baffle 2 in the direction perpendicular to the base plate 1, and the cooperation between the baffle 2 and the sliding groove can ensure that the baffle 2 can move along the preset direction. The first support plate 162 and the second support plate 163 can ensure that the interlock switch structure can be installed horizontally, that is, after installation, the first support plate 162 and the second support plate 163 are parallel to the horizontal plane.

Further, a first side plate 165 is arranged on one surface of the first supporting plate 162, which faces away from the touch disc piece 3, in a protruding manner, and a second side plate 166 is arranged on one surface of the second supporting plate 163, which faces away from the touch disc piece 3, in a protruding manner;

the first support plate 162, the first side plate 165 and the substrate 1 enclose to form a first chute section 161a, and the second support plate 163, the second side plate 166 and the substrate 1 enclose to form a second chute section 161 b.

In this embodiment, the first side plate 165 and the second side plate 166 can limit the baffle 2 in a direction away from the base plate 1, so as to prevent the baffle 2 from deviating from a preset direction during the moving process.

Further, referring to fig. 7 to 9, in an embodiment, the first side plate 165 and the substrate 1 are disposed in the first chute section 161a, and the second side plate 166 and the substrate 1 are disposed in the second chute section 161b and have stopping protrusions 167, and the stopping protrusions 167 are used for limiting the baffle 2 in a direction away from the first support plate 162 or the second support plate 163.

In the present embodiment, by providing the stopper projection 167, the shutter 2 is not easily displaced even if the interlock switch structure is vertically installed, that is, after installation, the first support plate 162 and the second support plate 163 are perpendicular to the horizontal plane. Preferably, an end of the stopper projection 167 remote from the door hook 4 is formed with a guide surface 168 facing the first support plate 162 or the second support plate 163. In this way, during assembly, the baffle 2 abuts against the guide surface 168 and is sequentially guided to the second chute section 161b and the first chute section 161 a.

Further, the baffle 2 is close to the one end of stock 41 and forms the swash plate 23, and the swash plate 23 sets up to the one side slope that is close to touching dish piece 3, and it deviates from the one side that touches dish piece 3 to send the smooth surface 21 to form at swash plate 23.

In this embodiment, in order to ensure the moving stroke of the baffle 2, so that the through hole 22 on the baffle 2 can be sufficiently staggered with the short rod 42, the sliding surface 21 with enough length needs to be matched with the long rod 41. However, if the slip surface 21 is formed on the baffle plate 2, the thickness of the baffle plate 2 needs to be increased correspondingly in the case of the relatively same. Through set up swash plate 23 on baffle 2, cause smooth surface 21 to form on swash plate 23, then can realize reducing the thickness of baffle 2 when the same function to further reduce the installation space of baffle 2, make the inner structure of interlock switch structure more compact.

Furthermore, a push plate is vertically arranged at one end of the baffle plate 2 opposite to the inclined plate 23, a positioning part 17 is convexly arranged on the base plate 1, the positioning part 17 comprises a positioning plate 171 and a mounting plate which are oppositely arranged, the push plate is positioned between the positioning plate 171 and the mounting plate, and the elastic part 6 is positioned between the push plate and the mounting plate.

In this embodiment, in some embodiments, in order to prevent the baffle plate 2 from loosening, the elastic member 6 needs to be kept in a compressed state all the time, so that the cooperation of the push plate and the positioning plate 171 can ensure the initial position of the baffle plate 2, and thus ensure that the sliding surface 21 of the baffle plate 2 can be correctly matched with the long rod 41. Preferentially, the position of the elastic part 6 is ensured, one surface of the push plate facing the mounting plate is provided with a positioning circular truncated cone 241, the elastic part 6 is a compression spring, and one end of the elastic part 6 departing from the mounting plate is sleeved on the positioning circular truncated cone 241.

Further, still include apron 8, apron 8 is installed perpendicularly in keeping away from the touching dish spare 3 one side of baffle 2, and apron 8 is equipped with two through-holes 81 with stock 41 and quarter butt 42 adaptation.

In this embodiment, through setting up apron 8, can prevent that the foreign object from falling into inside the interlock switch structure to can play certain waterproof function, when the horizontal installation of interlock switch structure, the lateral surface of apron 8 still is equipped with the annular groove who encircles two through-holes 81, so, can prevent to a certain extent that the water of apron 8 lateral surface gets into inside the interlock switch along through-hole 81.

Furthermore, one end of the cover plate 8 is provided with a fixing column 82, the other end is provided with a clamping hole 83, and the fixing column 82 is located on one surface of the cover plate 8 facing the substrate 1;

the third supporting plate 18 for supporting the cover plate 8 is vertically arranged on the base plate 1, the third supporting plate 18 is provided with a fixing hole 181 matched with the fixing column 82, and the edge of the base plate 1 adjacent to the cover plate 8 is provided with a clamping protrusion 19 matched with the clamping hole 83.

In this embodiment, the cover plate 8 can be detachably fixed to the base plate 1, and preferably, the height of the fixing post 82 is greater than that of the locking protrusion 19, so that during assembly, the fixing post 82 is first engaged with the fixing hole 181, which is equivalent to pre-positioning, and then the locking hole 83 is aligned with and locked with the locking protrusion 19 on the base plate 1, thereby completing the installation of the cover plate 8.

The utility model discloses still provide a microwave oven, including door hook and lock body, the concrete structure of this interlock switch's lock body refers to above-mentioned embodiment, because this microwave oven has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is no longer given here. Wherein,

the door hook is used for being matched with the lock body to realize interlocking control. Microwave oven uses the utility model discloses a lock body both can exert the stable advantage of lock body control, can utilize the advantage of lock body compact structure again well. The whole of microwave oven can be square, cuboid, cylinder or oval cylindric, preferably, the lock body is located microwave oven's furnace body, door hook 4 sets up on the door body, microwave oven is whole to be the cylinder.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims (12)

1. A lock body of an interlocking switch is characterized in that the lock body comprises a base plate, a touch plate part, an elastic part and a plurality of micro switches; wherein,

the touch plate piece is pivoted with the base plate, the micro switch is positioned on the periphery of the touch plate piece, and a contact of the micro switch faces the touch plate piece;

the peripheral surface of the touch panel piece is provided with a rotating surface matched with an external pressing piece and a plurality of contact surfaces matched with the contacts, and a position avoiding groove for avoiding the contacts is formed between every two adjacent contact surfaces;

when the locking device is locked, the external pressing piece is abutted with the rotating surface, the touch disc piece rotates in the positive direction, and each contact surface is abutted with the corresponding contact to trigger each microswitch;

when the touch panel is released, the touch panel piece reversely rotates under the action of the elastic piece, each contact surface leaves the corresponding contact, and each microswitch resets.

2. A lock body according to claim 1, wherein said contact disc member comprises a plate-shaped disc body and a flange vertically provided at an edge of the disc body, and said rotation inducing surface, said contact surface and said relief groove are formed on said flange.

3. A lock body as defined in claim 2, wherein said clearance groove has an inclined surface connected to said contact surface, and said contact abuts said inclined surface and then said contact surface when said disc member is rotated in a forward direction.

4. A lock body as claimed in claim 2 or 3, wherein said body is provided with a mounting hole, and a slot structure is protruded from the position of said base plate corresponding to said mounting hole; the elastic piece is a torsion spring, one leg of the elastic piece is abutted to the inner wall surface of the mounting hole, and the other leg of the elastic piece is abutted to the groove wall surface of the clamping groove structure.

5. A lock body according to claim 4, wherein said slot structure includes a side wall and a top wall, said side wall being perpendicular to said base plate, said top wall being disposed at an end of said side wall remote from said base plate, said resilient member being located between said top wall and said base plate.

6. A lock as claimed in claim 2 or 3, wherein a shaft is provided on said base plate, and a shaft hole is provided on said disc body for fitting said shaft.

7. The lock of claim 1, wherein said plurality of micro-switches comprises a primary switch, a secondary switch and a monitor switch, and when locked, said contact member is in contact with the contacts of said monitor switch, secondary switch and primary switch in sequence; when released, the touch pad member sequentially leaves the contacts of the primary switch, the secondary switch and the monitor switch.

8. The lock of claim 7, wherein the contact surface angle of each contact surface with respect to the axis of rotation of said contact disc member is such that the contact surface of said monitor switch is larger than the contact surface of said secondary switch.

9. A lock as claimed in claim 7 or 8, wherein said microswitch body has at least two pin holes, said base plate has a plurality of positioning posts fitted with said pin holes, and said microswitch is fitted over said positioning posts and detachably fixed to said base plate.

10. A microwave oven comprising a door hook and a lock body according to any of claims 1-9, said door hook being adapted to cooperate with said lock body to effect interlocking control.

11. The microwave oven as claimed in claim 10, wherein the lock body is located at a body of the microwave oven, and the door hook is provided at the door body.

12. The microwave oven as claimed in claim 10, wherein the microwave oven has an overall cylindrical shape.