CN115110839A

CN115110839A - Interlocking assembly and cooking equipment applying same

Info

Publication number: CN115110839A
Application number: CN202110295883.3A
Authority: CN
Inventors: 刘子厚; 付远华
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2021-03-19
Filing date: 2021-03-19
Publication date: 2022-09-27

Abstract

The utility model provides a cooking equipment of interlocking subassembly and applied this interlocking subassembly, top-down installs second micro-gap switch, pull rod and first micro-gap switch in proper order on the support, the inward movement of pull rod can trigger first micro-gap switch and second micro-gap switch, the pull rod has the trend of outside resetting under the effect of first elastic component, the initiative push rod is located first micro-gap switch's below, the inner end of initiative push rod has the tooth portion with driven gear engaged with, the inside motion energy of initiative push rod drives driven gear and removes the spacing of counter rod and make the pull rod can the internal motion under the exogenic action, and, the initiative push rod after the inward motion keeps having the trend of outside resetting under the effect of second elastic component. The interlocking component releases the limit of the pull rod by utilizing the rotation of the driven gear so as to enable the pull rod to move inwards, and the use safety is improved. The door assembly of the cooking equipment extrudes the driving push rod firstly and then extrudes the pull rod in the closing process, the structure does not need to be added on the door assembly, and the door body structure is simpler.

Description

Interlocking assembly and cooking equipment applying same

Technical Field

The invention relates to cooking equipment, in particular to a linkage assembly and cooking equipment applying the same.

Background

In the existing kitchen appliances such as microwave ovens, electric steamers and electric ovens, the door opening mode is generally designed to be a sliding door type door opening mode, and the door opening mode is provided with a corresponding door interlocking component. The conventional door interlocking assembly generally comprises a door body and a box body front plate matched with the door body, wherein a door hook is arranged on the door body, a door interlocking support is arranged on the box body front plate, and a microswitch triggered by the door hook is arranged on the door interlocking support. For example, the interlocking mechanism for a general oven door of a microwave oven disclosed in chinese utility model patent No. ZL 201020545967.5 (with an authorization publication No. CN 201925981U) includes a switch seat, a door hook and a front plate, wherein a plurality of switches can be placed on the switch seat, an action key for operating the switch is provided corresponding to the position of each switch, the door hook is provided on the oven door of the microwave oven and combined with or separated from the switch seat along with the opening and closing of the oven door, the door hook has at least one hook portion for triggering the switches by touching the action keys, and the front plate is used for fixing the switch seat on the cavity of the microwave oven.

The door interlocking of the existing cooking equipment with the microwave function is communicated by extruding the convex ribs on the door component, and the microwave function can be started after the interlocking component is communicated, so that the condition that a user mistakenly starts the microwave exists, and potential safety hazards are left. Due to the requirement of safety regulations, when a product is closed and is ready to start working, the first strong current switch is firstly connected and then the second strong current switch is connected; when the product is cooked and a user opens the door, the sequence of the second strong current switch being turned off first and the first strong current switch being turned off again must be met, otherwise, if the sequence of the two strong current switches is wrong, the product can automatically start a protection program, and a fuse tube on the electric control board is exploded to prevent the product from working. In addition, for products with microwave function, at least one strong electric switch must be present and cannot be touched by fingers according to the safety requirements. In view of the foregoing, there remains a need for further improvements in existing door interlock assemblies.

Disclosure of Invention

The first technical problem to be solved by the present invention is to provide an interlock assembly that is simple in structure, safe and reliable in use, and aims to solve the above-mentioned prior art.

A second technical problem to be solved by the present invention is to provide a cooking apparatus with a high safety of use of a latch assembly in view of the above-mentioned prior art.

The technical scheme adopted by the invention for solving the first technical problem is as follows: this interlocking subassembly, including the support top-down installs second micro-gap switch, pull rod and first micro-gap switch in proper order on the support, the pull rod inward movement can trigger first micro-gap switch and second micro-gap switch in proper order, and the pull rod after the inward movement has the trend that outwards resets, its characterized in that under the effect of first elastic component: the support is further provided with a driving push rod and a driven gear, the driving push rod is located below the first micro switch, the inner end of the driving push rod is provided with a tooth portion meshed with the driven gear, the driving push rod can move inwards to drive the driven gear to remove the limit of the pull rod, so that the pull rod can move inwards under the action of external force, and the driving push rod after moving inwards keeps the trend of resetting outwards under the action of the second elastic piece.

Driven gear can have multiple structure, driven gear includes intermeshing's first gear and second gear, first gear be located the below of second gear and with tooth portion meshes mutually, the side of second gear is opened has radial distribution's bar groove, the bar groove is formed with the opening in the periphery of second gear, under the drive of initiative push rod and first gear, the second gear can rotate to bar groove horizontal position and with the pull rod is corresponding, and makes the pull rod inwards move the ability and insert the bar inslot. Therefore, the driven gear can avoid the pull rod moving inwards, so that the pull rod can smoothly move inwards.

Further preferably, the first gear and the second gear are the same size.

In order to guarantee that first micro-gap switch and second micro-gap switch can be closed and break off according to the order, first micro-gap switch's top is equipped with first contact, second micro-gap switch's bottom is equipped with the second contact, the bottom of pull rod is equipped with the first piece that collides that is used for triggering first contact, the top of pull rod is equipped with the second that is used for triggering the second contact and collides the piece, and, first micro-gap switch and second micro-gap switch are triggered in proper order to the pull rod at the inside removal in-process, and the pull rod breaks off second micro-gap switch and first micro-gap switch in proper order at outside reset in-process.

The first elastic piece can have a plurality of mounting structures, preferably, be equipped with horizontally distributed's first erection column on the support be equipped with on the pull rod with the corresponding second erection column of first erection column, first elastic piece is first spring, and the cover is established in the inner of first spring on the first erection column, the outer pot head of first spring is established on the second erection column. Thus, after the pull rod moves inwards, the first spring is compressed, so that the pull rod is applied with outward elastic force, and the pull rod is kept to have the tendency of returning outwards.

In order to make the pull rod move more stably, a guide block for guiding the pull rod to move is arranged on the support.

The second elastic component can have multiple mounting structure, preferably, the outer end of initiative push rod has the stopper, be equipped with the fixed block on the support, the initiative push rod passes the outside that fixed block and stopper are located the fixed block, the second elastic component is established the second spring on the initiative push rod for the cover, the outer end and the stopper of second spring offset, and the inner and the fixed block of second spring offset, the initiative push rod outwards stretches out in the support just under outside reset state the stopper is located in the support.

In order to enable the driving push rod to move more stably, a supporting block for supporting the driving push rod is installed on the support, and the supporting block is located on the inner side of the fixing block.

In order to keep the pull rod and the driving push rod to move horizontally, the pull rod and the driving push rod are horizontally arranged.

The technical scheme adopted by the invention for solving the second technical problem is as follows: this cooking equipment includes the culinary art cavity and locates the cavity front bezel of culinary art cavity front side, the door subassembly, its characterized in that are installed to the front side of cavity front bezel: install on the lateral wall of culinary art cavity interlocking component, open on the cavity front bezel have with the jack that the pull rod is corresponding, the front end of initiative push rod has the extension that stretches out in the cavity front bezel forward, the extension is located the below of jack be equipped with on the inside wall of door subassembly and can insert the jack can act on the projection of pull rod to, at the door subassembly upwards close the in-process, the inside wall of door subassembly is pushed down the initiative push rod and is driven the initiative push rod and move inwards earlier, and the projection is pushed down the pull rod and is driven the pull rod and move inwards after.

Compared with the prior art, the invention has the advantages that: this interlocking assembly's initiative push rod inward movement can drive driven gear and rotate to can rotate to the limit position who removes the pull rod, the pull rod could inward movement this moment, micro-gap switch could be closed, thereby use safety and reliability have been improved, and initiative push rod is located the below of pull rod, cooking equipment's door subassembly is at the closed in-process, at first extrudees the initiative push rod, then extrudees the pull rod, need not to increase the structure of extrusion initiative push rod at the door subassembly, make the door body structure more succinct.

Drawings

FIG. 1 is a schematic structural diagram of an interlock assembly according to an embodiment of the present invention in a state where a microswitch is not triggered;

FIG. 2 is a schematic structural diagram of an interlock assembly in a microswitch triggered state according to an embodiment of the present invention;

FIG. 3 is a schematic view of a pull rod according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of an active push rod according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a cooking apparatus according to an embodiment of the present invention in a state where a door is opened;

FIG. 6 is an enlarged view of portion A of FIG. 5;

fig. 7 is a schematic structural view of a cooking apparatus according to an embodiment of the present invention in a state where a door is closed;

fig. 8 is a partial schematic view of fig. 7 with the front plate of the chamber removed.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 4, the interlock assembly of the present embodiment includes a bracket 1, and a positioning column 15 for installing a first micro switch 2 and a second micro switch 3 is disposed on the bracket 1, wherein the first micro switch 2 is a first strong electric switch, the second micro switch 3 is a second strong electric switch, a direction indicated by an arrow B in fig. 1 is a forward direction, and the first micro switch 2 is located at a front lower portion of the second micro switch 3. The top of the first microswitch 2 is provided with a first contact 21, and the bottom of the second microswitch 3 is provided with a second contact 31.

The bracket 1 is also provided with a pull rod 4 which is horizontally distributed and can move forwards and backwards, and the bracket 1 is provided with a guide block 12 which guides the movement of the pull rod 4. The pull rod 4 is located between the first micro switch 2 and the second micro switch 3, as shown in fig. 3, a first touching block 41 for triggering the first contact 21 is disposed at the bottom of the pull rod 4, and a second touching block 42 for triggering the second contact 31 is disposed at the top of the pull rod 4. The pull rod 4 sequentially triggers the first microswitch 2 and the second microswitch 3 in the inward (i.e. backward) moving process, and the pull rod 4 sequentially disconnects the second microswitch 3 and the first microswitch 2 in the outward (i.e. forward) resetting process.

In this embodiment, the bracket 1 is provided with a first mounting column 11, as shown in fig. 3, the pull rod 4 is provided with a second mounting column 43 corresponding to the first mounting column 11, the first spring 7, i.e., the inner end (i.e., the rear end) of the first elastic member, is sleeved on the first mounting column 11, and the outer end (i.e., the front end) of the first spring 7 is sleeved on the second mounting column 43.

The bracket 1 is provided with an active push rod 5 which is horizontally distributed and can move forwards and backwards, and the active push rod 5 is positioned below the first microswitch 2. The bracket 1 is provided with a fixed block 13 and a supporting block 14, the supporting block 14 is positioned at the inner side (namely the rear side) of the fixed block 13, the fixed block 13 is provided with a through hole for the driving push rod 5 to pass through, and the fixed block 13 and the supporting block 14 both play a role in supporting and guiding the driving push rod 5, so that the driving push rod 5 can move stably.

As shown in fig. 4, the inner end of the driving push rod 5 has a tooth portion 51, the outer end of the driving push rod 5 has a stopper 52, the stopper 52 is located outside (i.e., front side) the fixed block 13, and the front end of the driving push rod 5 is located at the front side portion of the stopper 52 to form an extension 53. The second spring 8, i.e. the second elastic member, is sleeved on the driving push rod 5, the outer end of the second spring 8 abuts against the limiting block 52, and the inner end of the second spring 8 abuts against the fixing block 13. When the driving push rod 5 moves inwards, the second spring 8 is compressed, the protruding part 53 protrudes outwards from the bracket 1 when the driving push rod 5 is in an outwards reset state, and the limiting block 52 is arranged in the bracket 1.

A driven gear 6 is arranged on the bracket 1, and the driven gear 6 is arranged at the rear side of the first micro switch 2 and the second micro switch 3. The driven gear 6 of the present embodiment includes a first gear 61 and a second gear 62 which are engaged with each other, the first gear 61 and the second gear 62 have the same size, the first gear 61 is located below the second gear 62 and is engaged with the tooth portion 51, a radially distributed strip-shaped groove 621 is formed on a side surface of the second gear 62, and an opening 622 is formed on an outer periphery of the second gear 62 by the strip-shaped groove 621. The driving push rod 5 can drive the first gear 61 to rotate, the first gear 61 can drive the second gear 62 to rotate, when the driving push rod 5 moves inwards, the strip-shaped groove 621 of the second gear 62 rotates to a horizontal position, namely, the strip-shaped groove 621 aligns with the inserted link 44 at the rear end of the pull rod 4, at the moment, the second gear 62 releases the limit of the pull rod 4, the pull rod 4 can move inwards under the action of external force, and the inserted link 44 is inserted into the strip-shaped groove 621. After the pull rod 4 has moved inwards, the first spring 7 is compressed, so that the pull rod 4 has a tendency to return outwards.

As shown in fig. 5 to 7, the cooking apparatus of the present embodiment is a cooking apparatus with microwave function, such as a microwave oven, a micro-all-in-one steaming and baking machine, and the cooking apparatus includes an inner container 100, a cavity front plate 101 is installed on a front side of the inner container 100, a door assembly 102 is installed on the cavity front plate 101, a bracket 1 of an interlocking assembly is installed on a right outer sidewall of the inner container 100, a jack 103 corresponding to the pull rod 4 is opened on the cavity front plate 101, a protruding portion 53 of the active push rod 5 protrudes forward from the cavity front plate 101, and the protruding portion 53 is located below the jack 103. A convex column 104 matched with the pull rod 4 is arranged on the inner side wall of the door component 102.

The interlocking structure acts as follows:

when the door is closed, firstly, the inner side wall of the door assembly 102 presses the extension part 53 to move the driving push rod 5 inwards, the driving push rod 5 moves inwards to drive the first gear 61 and the second gear 62 to rotate, when the second gear 62 rotates to the horizontal position of the strip-shaped groove 621 and aligns with the insertion rod 44 of the pull rod 4, as shown in fig. 2 and 8, the second gear 62 releases the limit on the pull rod 4, so that the convex column 104 of the door assembly 102 can be smoothly inserted into the insertion hole 103 and press the pull rod 4 inwards to drive the pull rod 4 to move inwards in the further closing process of the door. In the inward movement process of the pull rod 4, the first microswitch 2 and the second microswitch 3 are triggered and closed successively to meet the safety requirements.

When the door is opened, firstly, under the action of the first spring 7, the pull rod 4 is reset forwards; then, under the action of the second spring 8, the driving push rod 5 returns forward to drive the first gear 61 and the second gear 62 to rotate, and finally, the strip-shaped groove 621 is in a vertical position, as shown in fig. 1 and 6, at this time, the second gear 62 can prevent the pull rod 4 from moving inward. And in the forward resetting process of the pull rod 4, the second microswitch 3 and the first microswitch 2 are successively disconnected.

Claims

1. The utility model provides a interlock subassembly, includes the support second micro-gap switch (3), pull rod (4) and first micro-gap switch (2) are installed in proper order to top-down on support (1), pull rod (4) inward movement can trigger first micro-gap switch (2) and second micro-gap switch (3) in proper order, and pull rod (4) after the inward movement have the trend that outwards resets under the effect of first elastic component, its characterized in that: the automatic pulling device is characterized in that a driving push rod (5) and a driven gear (6) are further mounted on the support (1), the driving push rod (5) is located below the first microswitch (2), a tooth portion (51) meshed with the driven gear (6) is arranged at the inner end of the driving push rod (5), the driving push rod (5) moves inwards to drive the driven gear (6) to release the limit of the pull rod, so that the pull rod (4) can move inwards under the action of external force, and the driving push rod (5) after moving inwards keeps a trend of resetting outwards under the action of the second elastic piece.

2. The interlock assembly of claim 1 wherein: driven gear (6) are including intermeshing's first gear (61) and second gear (62), first gear (61) be located the below of second gear (62) and with tooth portion (51) mesh mutually, the side of second gear (62) is opened has radial distribution's bar groove (621), bar groove (621) are formed with opening (622) in the periphery of second gear (62), under the drive of initiative push rod (5) and first gear (61), second gear (62) can rotate to bar groove (621) horizontal position and with pull rod (4) are corresponding, and make pull rod (4) inward movement ability insert in bar groove (621).

3. The interlock assembly of claim 2 wherein: the first gear (61) and the second gear (62) are the same size.

4. The interlock assembly of claim 1 wherein: the top of first micro-gap switch (2) is equipped with first contact (21), the bottom of second micro-gap switch (3) is equipped with second contact (31), the bottom of pull rod (4) is equipped with the first piece (41) of bumping that is used for triggering first contact, the top of pull rod (4) is equipped with the second that is used for triggering the second contact and bumps piece (42), and, pull rod (4) triggers first micro-gap switch (2) and second micro-gap switch (3) in proper order at the inside removal in-process, and the pull rod breaks off second micro-gap switch (3) and first micro-gap switch (2) in proper order at the outside in-process that resets.

5. The interlock assembly of claim 1 wherein: be equipped with horizontally distributed's first erection column (11) on support (1) be equipped with on pull rod (4) with corresponding second erection column (43) of first erection column, first elastic component is first spring (7), and the inner cover of first spring (7) is established on first erection column (11), the outer pot head of first spring (7) is established on second erection column (43).

6. The interlock assembly of claim 1 wherein: and a guide block (12) for guiding the movement of the pull rod (4) is arranged on the support (1).

7. The interlock assembly of claim 1 wherein: the outer end of initiative push rod (5) has stopper (52), be equipped with fixed block (13) on support (1), initiative push rod (5) pass fixed block (13) and stopper (52) are located the outside of fixed block (13), second elastic component establishes second spring (8) on initiative push rod (5) for the cover, the outer end and the stopper (52) of second spring (8) offset, and the inner and fixed block (13) of second spring (8) offset, initiative push rod (5) outwards stretch out in support (1) just under outside reset state stopper (52) are located in support (1).

8. The interlock assembly of claim 7 wherein: the support (1) is provided with a supporting block (14) for supporting the driving push rod (5), and the supporting block (14) is positioned on the inner side of the fixing block (13).

9. The interlock assembly of any one of claims 1 to 8 wherein: the pull rod (4) and the driving push rod (5) are both horizontally arranged.

10. A cooking device, includes cooking cavity (100) and cavity front bezel (101) of locating the cooking cavity front side, door subassembly (102), its characterized in that are installed to the front side of cavity front bezel: the interlocking assembly of any one of claims 1 to 9 is mounted on the outer side wall of the cooking cavity (100), a jack (103) corresponding to the pull rod (4) is formed in the cavity front plate (101), a protruding portion (53) protruding forward from the cavity front plate (101) is arranged at the front end of the driving push rod (5), the protruding portion (53) is located below the jack (103), a convex column (104) capable of being inserted into the jack and acting on the pull rod is arranged on the inner side wall of the door assembly (102), and in the upward closing process of the door assembly (102), the inner side wall of the door assembly (102) presses the driving push rod (5) and drives the driving push rod (5) to move inward first, and the convex column (104) presses the pull rod (4) and drives the pull rod (4) to move inward later.