Opening stopping plate assembly and rotary cover opening type electric cooking appliance

Abstract

The utility model relates to the technical field of opening stopping, in particular to an opening stopping plate assembly and a rotary cover opening type electric cooking appliance applying the same. In order to solve the technical problem that a powder spraying layer of a heat preservation cover tooth is easily abraded and rusted due to friction, according to the opening stopping plate assembly, a cam is located on the inner side of the first end of an opening stopping plate, a spring is located on the outer side of the first end of the opening stopping plate, and the elastic force of the spring can act on the cam. The utility model further provides a rotary cover opening type electric cooking appliance which comprises a pot cover, a cooker body and an opening stopping plate assembly, when the pot cover is closed on the cooker body, the cam abuts against the heat preservation cover teeth, and the cam can slide along the heat preservation cover teeth to loosen or lock the pot cover when the pot cover rotates. The cam is in linear contact with the heat preservation cover teeth, compared with point contact movement in the prior art, the friction contact area is increased, under the action of the same force, the pressure borne by the surfaces of the heat preservation cover teeth is much smaller than the pressure borne by point contact movement of an existing opening stop rod, and abrasion of the heat preservation cover teeth can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-opening technology, in particular to an anti-opening plate assembly and a rotary cover-opening electric cooker applying the same. Background Art

[0002] At present, for the pot lid anti-opening assembly of a rotary cover-opening electric cooker, the anti-opening rod in frictional contact with the teeth of the heat preservation cover is a spherical anti-opening rod. The rotation of the pot lid drives the spherical anti-opening rod to slide along the teeth of the heat preservation cover to realize opening or locking the cover. The material of the heat preservation cover is often iron. In order to prevent the iron from rusting, powder is sprayed on the surface of the iron material. The spherical anti-opening rod and the teeth of the heat preservation cover are in point contact motion. Frequent opening and closing of the cover will cause the surface of the teeth of the heat preservation cover that cooperates with the movement of the anti-opening rod to be easily worn, resulting in rusting of the heat preservation cover and poor mutual movement between the anti-opening rod and the teeth of the heat preservation cover, bringing a very bad use experience to the product. Summary of the Utility Model

[0003] In order to overcome the deficiencies of the prior art, the main purpose of the utility model is to solve the technical problem that the powder spraying layer on the teeth of the heat preservation cover is easily worn due to friction and rusts.

[0004] In order to achieve the above purpose, the utility model provides an anti-opening plate assembly, which includes an anti-opening plate, a cam and a spring. The cam is located inside the first end of the anti-opening plate, and the spring is located outside the first end of the anti-opening plate, so that the elastic force of the spring can act on the cam.

[0005] Preferably, the anti-opening plate assembly further includes a connecting rod; a first mounting hole is provided at the first end of the anti-opening plate, the connecting rod passes through the first mounting hole, the first end of the connecting rod acts on the spring, and the second end of the connecting rod acts on the cam.

[0006] Further preferably, the connecting rod and the cam are of an integral structure.

[0007] Preferably, the anti-opening plate assembly further includes an anti-opening seat, the anti-opening seat is located inside the first end of the anti-opening plate, and the cam is arranged in the anti-opening seat.

[0008] Further preferably, the anti-opening plate assembly further includes a rivet; a first mounting hole is provided at the first end of the anti-opening plate, corresponding to the first mounting hole, a second mounting hole is provided on the anti-opening seat, and the rivet passes through the second mounting hole and the first mounting hole and then extends into the spring.

[0009] In order to achieve the above purpose, the utility model further provides a rotary cover-opening electric cooker, including:

[0010] A pot lid, and a third mounting hole is provided on the side wall of the pot lid;

[0011] The pot body, an insulating cover tooth is arranged at the outer end of the pot body close to the side of the pot lid. The insulating cover tooth includes a first inner tooth, an outer tooth and a second inner tooth. The outer tooth is located between the first inner tooth and the second inner tooth, and the diameter of the outer tooth is greater than the diameters of the first inner tooth and the second inner tooth; and

[0012] The anti-opening plate assembly according to any one of the above, the anti-opening plate is located outside the side wall of the pot lid, and the cam passes through the third mounting hole;

[0013] When the pot lid is closed on the pot body, the cam abuts against the insulating cover tooth, and the cam can slide along the insulating cover tooth when the pot lid rotates to loosen or lock the pot lid.

[0014] Preferably, the rotary open-lid electric cooker further includes a face cover. The pot lid is located between the face cover and the pot body. The anti-opening plate is located between the face cover and the pot lid. The free end of the spring abuts against the inner side of the side wall of the face cover.

[0015] Preferably, the rotary open-lid electric cooker further includes an anti-opening valve, and the anti-opening valve is arranged on the pot lid;

[0016] A through hole is arranged on the face wall of the pot lid. A second end of the anti-opening plate away from the first mounting hole is provided with an anti-opening hole. The second end of the anti-opening plate is located outside the face wall of the pot lid. The position of the anti-opening hole corresponds to the position of the through hole. The anti-opening valve can move up and down in the anti-opening hole after passing through the through hole in the vertical direction to loosen or lock the anti-opening plate.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] Applying the anti-opening plate assembly in the present utility model to an electric cooker, when the cam contacts the insulating cover tooth, the two are in line contact, and their relative movement belongs to linear movement. Compared with the point contact movement in the prior art, the contact area of friction is increased. Under the action of the same magnitude of force, the pressure borne on the surface of the insulating cover tooth is much smaller than the pressure of the point contact movement of the existing anti-opening rod, which can reduce the wear of the insulating cover tooth, thereby solving the technical problem that the powder spraying layer of the insulating cover tooth is easily worn by friction and rusts. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of an embodiment of the anti-opening plate assembly of the present utility model;

[0020] Figure 2 is Figure 1 a sectional view schematic diagram;

[0021] Figure 3 isFigure 1 Exploded view;

[0022] Figure 4 This is a schematic structural diagram of another embodiment of the anti-opening plate assembly of the present utility model;

[0023] Figure 5 This is an exploded structural diagram of an embodiment of the rotary lid-opening electric cooker of the present utility model;

[0024] Figure 6 This is a schematic structural diagram of the tooth contact between the cam and the heat preservation cover in an embodiment of the rotary lid-opening electric cooker of the present utility model;

[0025] Figure 7 This is a schematic structural diagram of the lid locking structure in an embodiment of the rotary lid-opening electric cooker of the present utility model;

[0026] Figure 8 This is a schematic structural diagram of the lid loosening structure in an embodiment of the rotary lid-opening electric cooker of the present utility model.

[0027] The descriptions of each identifier in the figure are as follows:

[0028] 10 - Anti-opening plate assembly, 11 - Anti-opening plate, 111 - First mounting hole, 112 - Anti-opening hole, 12 - Cam,

[0029] 13 - Spring, 14 - Link, 15 - Anti-opening seat, 16 - Rivet;

[0030] 20 - Lid, 21 - Lid side wall, 211 - Third mounting hole, 22 - Lid face wall, 221 - Through hole;

[0031] 30 - Pot body, 31 - Heat preservation cover teeth, 311 - First inner teeth, 312 - Outer teeth, 313 - Second inner teeth;

[0032] 40 - Face cover;

[0033] 50 - Anti-opening valve. Specific embodiments

[0034] The present utility model will be described in more detail below with reference to the accompanying drawings. It should be noted that the description of the present utility model with reference to the accompanying drawings below is only illustrative and not restrictive.

[0035] Where possible, the following described different embodiments can be recombined with each other to form other embodiments not shown in the following description; the following described different technical features can also be recombined with each other to form other embodiments not shown in the following description.

[0036] Embodiment 1

[0037] Please refer toFigures 1 to 3 , to solve the technical problem that the heat preservation cover teeth are easily worn due to friction, this embodiment provides a stop-opening plate assembly 10, which includes a stop-opening plate 11, a cam 12 and a spring 13. The cam is located inside the first end of the stop-opening plate, and the spring is located outside the first end of the stop-opening plate, so that the elastic force of the spring can act on the cam.

[0038] Apply this stop-opening plate assembly to a rotary lid-opening electric cooker, which includes a pot lid and a pot body. A heat preservation cover tooth is provided at the outer end of the pot body near the pot lid. The heat preservation cover tooth includes a first inner tooth, an outer tooth and a second inner tooth. The outer tooth is located between the first inner tooth and the second inner tooth, and the diameter of the outer tooth is greater than the diameters of the first inner tooth and the second inner tooth.

[0039] When the pot lid and the pot body are in the closed-lid state, the cam abuts against the first inner tooth under the action of the spring force. Rotate the pot lid, and the stop-opening plate drives the cam to slide towards the outer tooth through the pot lid. Since the diameter of the outer tooth is greater than the diameter of the first inner tooth, when the cam is on the outer tooth, the spring is compressed, and the elastic force generated by the compressed spring drives the cam to continue sliding towards the second inner tooth to realize the closing of the lid; when it is necessary to open the pot lid, rotate the pot lid in the reverse direction, and the stop-opening plate drives the cam to slide from the second inner tooth towards the outer tooth through the pot lid. Since the diameter of the outer tooth is greater than the diameter of the second inner tooth, when the cam is on the outer tooth, the spring is compressed, and the elastic force generated by the compressed spring drives the cam to continue sliding towards the first inner tooth to realize the opening of the lid.

[0040] When the cam contacts the heat preservation cover teeth, the two are in line contact, and their relative movement belongs to linear movement. Compared with the point contact movement in the prior art, the contact area of friction is increased. Under the action of the same magnitude of force, the pressure borne by the surface of the heat preservation cover teeth is much smaller than the pressure of the point contact movement of the existing stop-opening rod, which can reduce the wear of the heat preservation cover teeth, and thus can solve the technical problem that the powder spraying layer of the heat preservation cover teeth is easily worn due to friction and rusts.

[0041] The assembly among the stop-opening plate 11, the cam 12 and the spring 13 can be realized through a connecting rod 14. Specifically, a first mounting hole 111 is provided at the first end of the stop-opening plate. The connecting rod 14 passes through the first mounting hole 111. The first end of the connecting rod acts on the spring, and the second end of the connecting rod acts on the cam. The connecting rod 14 itself can be a separate component, or a component integrally formed with the cam, or a component integrally formed with the spring. No limitation is made here. Fixing the stop-opening plate, the bracket and the spring through a connecting rod not only has a simple and reliable structure, but also is convenient for installation.

[0042] In other specific embodiments, please refer to Figure 4, the assembly among the lid locking plate 11, the cam 12 and the spring 13 can also be realized through the lid locking seat 15 and the rivet 16. Specifically, the lid locking seat 15 is located inside the first end of the lid locking plate 11, the cam 12 is arranged inside the lid locking seat 15, the first end of the lid locking plate is provided with a first mounting hole, corresponding to the first mounting hole, the lid locking seat is provided with a second mounting hole, and the rivet 16 passes through the second mounting hole and the first mounting hole and then extends into the spring. The setting of the lid locking seat facilitates the installation of the cam and also facilitates the fixation of the cam. When the cam is damaged and needs to be replaced, it is also convenient to replace. Moreover, the lid locking plate, the lid locking seat and the spring are fixed by one rivet, which is not only simple and reliable in structure but also convenient for installation.

[0043] Embodiment 2

[0044] Please further refer to Figure 5 , Figure 6 , to solve the technical problem that the heat insulation cover teeth are easily worn due to friction, this embodiment provides a rotary lid-opening electric cooker, including:

[0045] A pot lid 20, on whose side wall 21 a third mounting hole 211 is provided;

[0046] A pot body 30, on the outer end of the side close to the pot lid, a heat insulation cover tooth 31 is provided, the heat insulation cover tooth includes a first inner tooth 311, an outer tooth 312 and a second inner tooth 313, the outer tooth is located between the first inner tooth and the second inner tooth, and the diameter of the outer tooth is greater than the diameters of the first inner tooth and the second inner tooth; and

[0047] The lid locking plate assembly 10 provided in Embodiment 1, the lid locking plate 11 is located outside the side wall of the pot lid, and the cam 12 passes through the third mounting hole 211;

[0048] When the pot lid is closed on the pot body, the cam abuts against the heat insulation cover tooth, and the cam can slide along the heat insulation cover tooth to loosen or lock the pot lid when the pot lid rotates.

[0049] The principle of rotary lid opening and closing is as follows:

[0050] When the pot lid and the pot body are in the closed state, the cam abuts against the first inner tooth under the action of the spring force. Rotate the pot lid, the lid locking plate drives the cam to slide towards the outer tooth through the pot lid. Since the diameter of the outer tooth is greater than the diameter of the first inner tooth, when the cam is on the outer tooth, the spring is compressed, and the elastic force generated by the compressed spring drives the cam to continue sliding towards the second inner tooth to realize the closing of the lid; when it is necessary to open the pot lid, rotate the pot lid in the reverse direction, the lid locking plate drives the cam to slide from the second inner tooth towards the outer tooth through the pot lid. Since the diameter of the outer tooth is greater than the diameter of the second inner tooth, when the cam is on the outer tooth, the spring is compressed, and the elastic force generated by the compressed spring drives the cam to continue sliding towards the first inner tooth to realize the opening of the lid.

[0051] The contact between the cam and the internal and external teeth of the heat preservation cover is a line contact. When the two slide relative to each other, compared with the point contact in the prior art, the contact area of friction is increased. Under the action of the same magnitude of force, the pressure borne by the surface of the internal and external teeth of the heat preservation cover is much smaller than the pressure of the point contact movement of the existing anti-opening rod, so that the wear of the internal and external teeth of the heat preservation cover can be reduced.

[0052] In a further specific embodiment, please continue to refer to Figure 5 , the rotary lid-opening electric cooker may further include a face cover 40. The pot lid 20 is located between the face cover 40 and the pot body 30. The anti-opening plate 11 is located between the face cover 40 and the pot lid 20. The free end of the spring 13 abuts against the inner side wall of the face cover, and the compression of the spring is realized through the face cover and the anti-opening plate.

[0053] Embodiment III

[0054] Please further refer to Figure 7 、 Figure 8 , on the basis of Embodiment II, the rotary lid-opening electric cooker provided in this embodiment further includes an anti-opening valve 50. The anti-opening valve is arranged on the pot lid. A through hole 221 is arranged on the face wall 22 of the pot lid. A second end of the anti-opening plate away from the first mounting hole 111 is provided with an anti-opening hole 112. The second end of the anti-opening plate is located outside the face wall 22 of the pot lid. The position of the anti-opening hole 112 corresponds to the position of the through hole 221. The anti-opening valve can lift and lower in the anti-opening hole after passing through the through hole in the vertical direction to loosen or lock the anti-opening plate.

[0055] After the pressure in the pot body rises, the anti-opening valve will be lifted upward by the upward force and inserted into the anti-opening hole of the anti-opening plate. The anti-opening plate is blocked by the rising anti-opening valve and cannot move, resulting in that the cam cannot generate a radial displacement when the user rotates the pot lid. Since the diameter of the external teeth is larger than the diameter of the first internal teeth, the cam will be blocked by the external teeth and cannot slide from the first internal teeth towards the external teeth, and the pot lid cannot rotate, ensuring that the pot lid cannot be opened when there is pressure in the pot body, thus ensuring the safety of the user; when there is no pressure in the pot body assembly, the anti-opening valve drops outside the anti-opening hole under the action of gravity, and the anti-opening plate is not blocked by the anti-opening valve. The cam can generate a radial displacement under the action of the user rotating the pot lid. At this time, if the lid is in the open state, rotate the pot lid, and the anti-opening plate drives the cam to slide from the first internal teeth towards the external teeth through the pot lid. Since the diameter of the external teeth is larger than the diameter of the first internal teeth, when the cam is on the external teeth, the spring is compressed, and the elastic force generated by the compressed spring drives the cam to continue sliding towards the second internal teeth to realize the closing of the lid; at this time, if the lid is in the closed state, rotate the pot lid in the reverse direction, and the anti-opening plate drives the cam to slide from the second internal teeth towards the external teeth through the pot lid. Since the diameter of the external teeth is larger than the diameter of the second internal teeth, when the cam is on the external teeth, the spring is compressed, and the elastic force generated by the compressed spring drives the cam to continue sliding towards the first internal teeth to realize the opening of the lid.

[0056] Although a number of specific embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are merely exemplary and should not be construed as limiting the protection scope of the present utility model. Any non-substantial changes and substitutions made by those of ordinary skill in the art fall within the scope of protection required by the present utility model.

Claims

1. An anti-opening plate assembly, characterized in that, It includes a lid-opening prevention plate, a cam, and a spring. The cam is located inside the first end of the lid-opening prevention plate, and the spring is located outside the first end of the lid-opening prevention plate, such that the elastic force of the spring can act on the cam.

2. The anti-opening plate assembly according to claim 1, wherein, It further includes a connecting rod; a first mounting hole is provided at the first end of the lid-opening prevention plate, the connecting rod passes through the first mounting hole, the first end of the connecting rod acts on the spring, and the second end of the connecting rod acts on the cam.

3. The anti-opening plate assembly according to claim 2, wherein The connecting rod and the cam are of an integral structure.

4. The anti-opening plate assembly according to claim 1, characterized in that, It further includes a lid-opening prevention seat, the lid-opening prevention seat is located inside the first end of the lid-opening prevention plate, and the cam is arranged inside the lid-opening prevention seat.

5. The anti-opening plate assembly according to claim 4, characterized in that, It further includes a rivet; a first mounting hole is provided at the first end of the lid-opening prevention plate, corresponding to the first mounting hole, a second mounting hole is provided on the lid-opening prevention seat, and the rivet passes through the second mounting hole and the first mounting hole and then extends into the spring.

6. A rotary lid-opening electric cooker, characterized in that, It includes: a pot lid, and a third mounting hole is provided on the side wall of the pot lid; a pot body, and a heat preservation cover tooth is provided at the outer end of the pot body close to the pot lid. The heat preservation cover tooth includes a first inner tooth, an outer tooth, and a second inner tooth. The outer tooth is located between the first inner tooth and the second inner tooth, and the diameter of the outer tooth is larger than the diameters of the first inner tooth and the second inner tooth; and the lid-opening prevention plate assembly according to any one of claims 1 to 3, the lid-opening prevention plate is located outside the side wall of the pot lid, and the cam passes through the third mounting hole; When the pot lid is closed on the pot body, the cam abuts against the heat preservation cover tooth, and the cam can slide along the heat preservation cover tooth when the pot lid rotates to loosen or lock the pot lid.

7. The rotary lid-opening electric cooker according to claim 6, wherein, It further includes a face cover. The pot lid is located between the face cover and the pot body, the lid-opening prevention plate is located between the face cover and the pot lid, and the free end of the spring abuts against the inner side of the side wall of the face cover.

8. The rotary lid-opening electric cooker according to any one of claims 7 or 6, characterized in that, It further includes a lid-opening prevention valve, a lid-opening prevention seat, and a rivet. The lid-opening prevention valve is arranged on the pot lid; The lid-opening prevention seat is located inside the first end of the lid-opening prevention plate, and the cam is arranged inside the lid-opening prevention seat; a first mounting hole is provided at the first end of the lid-opening prevention plate, corresponding to the first mounting hole, a second mounting hole is provided on the lid-opening prevention seat, and the rivet passes through the second mounting hole and the first mounting hole and then extends into the spring; a through hole is provided on the face wall of the pot lid, a lid-opening prevention hole is provided at the second end of the lid-opening prevention plate away from the first mounting hole, the second end of the lid-opening prevention plate is located outside the face wall of the pot lid, the position of the lid-opening prevention hole corresponds to the position of the through hole, and the lid-opening prevention valve can vertically pass through the through hole and then lift and lower in the lid-opening prevention hole to loosen or lock the lid-opening prevention plate.

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