CN213786771U

CN213786771U - Cooker with automatic cover opening mechanism

Info

Publication number: CN213786771U
Application number: CN202022330181.8U
Authority: CN
Inventors: 吴昌平
Original assignee: Tuopu Jinggong Intelligent Manufacturing Shaoyang Co ltd
Current assignee: Tuopu Jinggong Intelligent Manufacturing Shaoyang Co ltd
Priority date: 2020-10-19
Filing date: 2020-10-19
Publication date: 2021-07-27
Anticipated expiration: 2030-10-19

Abstract

The cooker with the automatic cover opening mechanism comprises a main body, a cover body and a cover opening holding spring, wherein the cover body is rotatably arranged on the rear side of the upper part of the main body; the first hook body is arranged on the front side of the cover body, the second hook body is arranged on the front side of the upper part of the main body, and the first hook body and the second hook body can be mutually hooked and unhooked, so that the cover body and the main body can be sealed and opened; a driving arm is further arranged on the inner side of the front side shell of the main body, the second hook body is arranged at the top end of the driving arm, the driving arm is arranged in an up-down extending mode, and the tail end of the driving arm extends out of the lower portion of the main body, so that a user can conveniently operate the driving arm from the lower portion of the front side of the main body manually to unhook the second hook body from the first hook body; an electric drive is also provided, the electric drive being fixedly connected to the housing of the main body, an output shaft of the electric drive being connected to the drive arm so as to be able to drive the drive arm in a movement for unhooking the second hook from the first hook.

Description

Cooker with automatic cover opening mechanism

Technical Field

The invention relates to the field of cooking appliances, in particular to a cooker with an automatic cover opening mechanism.

Background

The electric cooker and the electric pressure cooker are common cooking appliances in the market, generally comprise a cooker body for placing an inner pot and a cooker cover capable of covering the cooker body, and the cooker cover is hinged on the cooker body for the convenience of use. The utility model discloses a pressure cooking utensil that the safety was uncapped, including the cooker lid, the cooker lid is provided with the hasp on the cooker lid or a kind of deep pot body upper portion, for example application number is 201220234643.9, the patent technical scheme who is named as "the pressure cooking utensil that uncaps safely" discloses the structure of uncapping of a manual formula, works as the cooker lid closes the cooker is on one's body, through the hasp lock arrives the cooker lid and a kind of deep pot body, and when uncapping, through manual pressing or stirring thereby the uncapping button that cooker lid or a kind of deep pot body upper portion exposed the setting realizes manually opening the purpose of cooker lid.

With the development of intellectualization and automation, the pot cover can be opened completely by a manual mode and obviously cannot be completely applied. For this reason, in recent years, a structure for automatically opening a lid has been developed, for example, application No. 201310648738.4 entitled "cooking utensil", which discloses a cooking utensil including a touch switch provided on a body or a lid of the cooking utensil for sensing a lid opening command and transmitting a lid opening signal to the controller, a driving member for driving the lid to open under the drive of the controller, and a controller. Although the rice cooker with the structure has higher safety, particularly prevents the risk that a product explodes the cooker and scalds a user due to forced uncovering by misoperation of the user when the rice cooker works under pressure, the whole rice cooker fails and is inconvenient to use after the controller or the driving part fails.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the manual cover opening and intelligent automatic cover opening structure of the rice cooker, the invention provides a cooker with an automatic cover opening mechanism, which comprises a main body, a cover body and a cover opening holding spring, wherein the cover body is rotatably arranged on the rear side of the upper part of the main body; a first hook body is arranged on the front side of the cover body, a second hook body is arranged on the front side of the upper part of the main body, and the first hook body and the second hook body can be mutually hooked and unhooked so as to enable the cover body and the main body to be closed and opened; the hook is characterized in that a driving arm is further arranged on the inner side of the front side shell of the main body, the second hook body is arranged at the top end of the driving arm, the driving arm is arranged in an up-and-down extending mode, the tail end of the driving arm extends out of the lower portion of the main body, and therefore a user can conveniently operate the driving arm from the lower portion of the front side of the main body manually to unhook the second hook body from the first hook body; an electric drive is further provided, the electric drive being fixedly connected to the housing of the main body, an output shaft of the electric drive being connected to the drive arm so as to be able to drive the drive arm in a movement for unhooking the second hook from the first hook; an arm return spring is also arranged and used for driving the driving arm to return and keep the driving arm at a position where hooking can be realized.

Wherein the upper rear side and the upper front side of the body are relative definitions of several relative orientations and positions of the body, and the upper rear side and the upper front side correspond back and forth in a front-to-back direction.

Wherein the main body and the cover body are hingedly connected to each other at an upper rear position so that the cover body can rotate on the main body. The cover opening holding spring is arranged between the cover body and the main body and is used for keeping the cover body in a standing state at the upper rear side position of the main body after the cover body is opened, and when the cover body is unhooked from the main body, the cover body is pushed to turn upwards under the cover opening acting force of the cover opening holding spring and also can be kept in a cover opening standing state; on the other hand, when the cover body is covered on the main body, under the uncovering acting force of the uncovering holding spring, the first hook body and the second hook body are hooked more reliably.

The first hook body and the second hook body are respectively arranged on the front sides of the cover body and the main body, and can be paired with the hinge connecting device at the rear side position between the cover body and the main body after being mutually hooked, so that the cover body is positioned together and cannot be separated from the main body.

Wherein the second hook is provided at the top end of the driving arm, and the driving arm is a member for driving the second hook to move inside the front housing of the main body, and when the driving arm is reset to keep the second hook at the reset position, the second hook can be hooked with the first hook at any time, and when the driving arm is driven to move, for example, up and down, back and forth, or left and right, the second hook can be unhooked from the first hook.

The tail end of the driving arm extends out of the lower portion of the main body, that is, the tail end of the driving arm extends out of an avoidance hole formed in a shell at the lower portion of the main body, so that a user can directly extend into the lower portion of the avoidance hole from the lower portion of the front side of the main body by using fingers and touch the tail end of the driving arm, for example, the tail end of the driving arm is pushed upwards or forwards and backwards, and therefore manual opening of the cover can be performed under the condition that other automatic opening modes fail, but the tail end of the driving arm is not particularly protruded in the view of the user. Generally the area is easily accessible for fingers to reach but is not easily viewed directly by the human eye due to the person's height being much higher than the body when the user is standing on the side of the body.

In a further improvement, a recess may be provided in the lower housing from which the tail end extends, and the tail end of the drive arm extends out of the lower housing to be exposed in the recess.

The electric driver is a component driven by electric power, such as a motor and an electromagnet.

According to the technical scheme, compared with the prior art, the invention has the beneficial technical effects that: firstly, as the driving arms are arranged in an up-and-down extending manner, the tail ends of the driving arms extend out from the lower part of the main body, so that water vapor and the like possibly infected on the top ends of the driving arms, namely the second hook bodies can be directly guided to the lower surface of the main body, and the use safety is improved; secondly, as the tail end of the driving arm extends out of the avoidance hole, fingers easily extend into the lower part of the front side of the main body and operate the tail end of the driving arm, but the part is far away from the normal sight of people and is not easy to be observed by the direct vision of human eyes, so that the whole appearance effect of the cooker is not influenced; thirdly, after the electric driver or the controller thereof is in failure or loses power, the cover body can be opened by operating the tail end of the driving arm, so that the defect that the whole cooker possibly fails can be overcome, namely, the manual-automatic integrated function can be realized. In a word, above-mentioned scheme has and hides and is difficult for exposing the whole pleasing to the eye characteristics of keeping the outward appearance or and effect when can realizing the manual-automatic integration, can guide steam to flow out downwards again and improve the security.

In the above-described aspect, a dedicated passage extending in the up-down direction may be further provided inside the front side housing of the main body, and the driving arm is disposed in the passage so as to be able to better isolate moisture possibly present on the driving arm from other electric devices in the main body. In addition, prevent for this reason that the mosquito from entering into in the main part, can also set up on the casing of main part lower part set up the brush on dodging the hole, can also be with the tail end of actuating arm with set up with clearance fit between the hole of dodging, like this the actuating arm can freely reciprocate in the hole of dodging but the tail end of actuating arm and the tiny clearance of dodging between the hole can prevent the mosquito and climb into.

The structure of the driving arm has various alternatives, wherein, at least two driving structures are as follows:

in the first structure, the driving arm is a lever member provided rotatably to a front side housing of the main body through a lever fulcrum shaft, and an output shaft of the electric driver is connected to the lever member so as to be able to unhook the second hook from the first hook when the lever member is driven to rotate. The output shaft of the electric drive can be connected either directly to the lever or indirectly via the transverse arm, which will be mentioned later.

In a second structure, the driving arm is a vertical rod member which is kept moving in an up-and-down direction, and an output shaft of the electric driver is connected to the vertical rod member so as to be able to unhook the second hook body from the first hook body when the vertical rod member is driven to move up and down.

In order to facilitate the connection of the electric drive to the drive arm, it is furthermore possible that a transverse arm is provided on the drive arm, to which the output shaft of the electric drive is connected, i.e. the output shaft of the electric drive is connected to the drive arm via the transverse arm in an indirect connection. This not only facilitates the arrangement of the electric drive at a reasonable position inside the front housing, but the electric drive can also amplify or reduce the drive torque (torque M = L × F) by means of the transverse arm.

The form of arrangement of the electric drive is various, and the electric drive is an electromagnet or an electric motor.

The cooker further comprises a controller, wherein the electric driver is in signal connection with the controller, and the controller is used for driving the electric driver to act according to a door opening command. The uncapping instruction can be a pressing and touching action of a user, or an uncapping signal instruction sent by the user or a system from the outside in a wireless mode.

The cooker further comprises a cover opening instruction receiver which is in signal connection with the controller and is used for receiving a cover opening instruction signal of a user and feeding back the cover opening instruction to the controller. The uncovering instruction receiver can be a touch switch, a button switch or an APP in the cloud.

The cooker further comprises a first pressure sensor, wherein the first pressure sensor is in signal connection with the controller, and is used for sensing the working pressure of cooking and feeding back the working pressure signal to the controller. The controller can then use the cooking pressure signal fed back by the first pressure sensor to control other components such as a heater, a steam generator, an alarm device or a lid opener, or perform other control steps.

The cooker further comprises a second pressure sensor, wherein the second pressure sensor is provided with a limiting arm body, the limiting arm body can move along with the change of cooking pressure, and the second pressure sensor is used for sensing the working pressure of cooking and enabling the limiting arm body to abut against the driving arm when the working pressure of the cooker is larger than zero, so that the second hook body cannot be unhooked from the first hook body. Wherein the second pressure sensor may be a device having a restricting arm such as a float valve. According to the scheme, the cover body can not be opened under the condition that pressure is generated in the cooker through the limitation of the second pressure sensor, so that the cover body is effectively prevented from being opened accidentally when the cooker cooks, and the use safety of the cooker is greatly improved.

The cooker further comprises a pressure relief device, the pressure relief device is installed on the cover body and is in signal connection with the controller, the pressure relief device is used for releasing cooking pressure, and the controller is used for driving the pressure relief device to release the cooking pressure before the cover is opened.

Since the present invention has the above-mentioned features and advantages, it can be applied to a cooker having an automatic lid opening mechanism.

Drawings

FIG. 1 is a schematic axial view of a cooker employing the technical solution of the present invention, showing the rotational structure of the driving arm;

FIG. 2 is a schematic structural view of a cross section of a cooker to which the technical solution of the present invention is applied in a front view;

FIG. 3 is a schematic view of a connecting block of cooker elements to which the solution of the invention is applied;

fig. 4 is a front view partially sectional structural view of a cooker to which the technical solution of the present invention is applied, showing a structure in which the driving arm moves up and down.

Detailed Description

The structure of the technical scheme of the invention is further explained by combining the attached drawings.

As shown in fig. 1 to 3, the present invention provides a cooker with an automatic lid opening mechanism, comprising a main body 1, a lid body 2 rotatably provided at the rear side of the upper portion of the main body 1, and a lid opening holding spring 3. The main body 1 comprises a shell 12, an inner pot 11 arranged in the shell 12 and used for placing food, a heater 9 capable of heating the inner pot 11, a controller 7 capable of controlling the heater 9 to heat or controlling the cover body 2 to automatically open the cover, and the like. In this embodiment, the lid body 2 is hinged to the upper rear side of the case 12, the lid body 2 is rotatable on the main body 1, and the lid opening holding spring 3 is provided at a position where the lid body 2 is hinged to the case 12 and applies a turning force to the lid body 2. When the lid body 2 is not hooked to the main body 1, the lid body 2 can be kept in a standing state on the rear side of the main body 1 after being opened by the lid-opening urging force of the lid-opening holding spring 3.

The housing 12 includes a side housing 14 and a bottom housing 13 disposed below the side housing 14, the side housing 14 includes a front side housing 141, a driving arm 4 is further disposed inside the front side housing 141 of the main body 1, the driving arm 4 extends in an up-down direction, and the driving arm 4 is disposed between the inner pot 11 and the front side housing 141. In order to be able to hook and maintain the closed state when the cover 2 is closed on the main body 1, a first hook 21 is provided at the front side of the cover 2, and a second hook 41 is also provided at the upper front side of the main body 1 in an adaptive manner, wherein the second hook 41 is provided at the top end of the driving arm 4, and when the cover 2 is closed on the main body 1, the first hook 21 and the second hook 41 can be automatically hooked with each other to enable the cover between the cover 2 and the main body 1 to be closed, and when the driving arm 4 is driven, the first hook 21 and the second hook 41 can be unhooked to enable the cover between the cover 2 and the main body 1 to be opened.

As shown in fig. 1 and 2, an avoidance hole 131 is formed in a position close to the front side of the lower housing of the main body 1, the avoidance hole 131 is located below the driving arm 4, and the tail end of the driving arm 4 is in clearance fit with the avoidance hole 131; a recess 132 is provided in a corner vicinity area on the front side of the bottom case 13, a lower wall of the bottom case 13 is bent upward to form a wall of the recess 132, the escape hole 131 is provided in a bottom wall 133 of the recess 132, the driving arm 4 is vertically disposed inside the front case 141, the driving arm 4 extends downward of the main body 1, and the tail end 43 of the driving arm 4 protrudes into the recess 132 through the escape hole 131. Of course, a part of the wall of the lower portion of the front housing 14 may be bent inward to form the recess 132, and the relief hole 131 may be provided in the recess bottom wall 133 of the recess 132. In this way, the driving arm 4 can directly guide the moisture and the like possibly stained on the second hook body 41 to the lower surface of the main body 1, so that the use safety is improved, a user can manually operate the driving arm 4 to move from the lower part of the main body 1, so that the second hook body 41 is unhooked from the first hook body 21, the influence on the appearance of the cooker can be reduced, the tail end 43 of the driving arm 4 is not easy to see in normal use, and the integral aesthetic property of the cooker is greatly improved. The manual-automatic integrated cover opening scheme is realized, the characteristics or the effect that the appearance is integrally attractive due to the fact that the cover is hidden and not easy to expose are achieved, and water vapor can be guided to flow downwards.

An electric driver 6 is further disposed inside the front housing 141, the electric driver 6 is fixedly connected to the front housing 141 and is in signal connection with the controller 7, the electric driver 6 is a device for driving the driving arm 4 to move, and includes a driver main body 62 and an output shaft 61 disposed on the driver main body 62, the output shaft 61 of the electric driver 6 is connected to the driving arm 4, and the output shaft 61 can provide a driving force to the driving arm 4 by moving or rotating to drive the driving arm 4 to move so as to unhook the second hook 41 from the first hook 21. Wherein the electric driver 6 may be an electromagnet or an electric motor, in this embodiment, the electric driver 6 is an electromagnet, and the output shaft 61 is a stem that is arranged on the electromagnet and can move back and forth.

The output shaft 61 may be directly connected to the rod wall of the driving arm 4, or a transverse arm 44 may be further provided on the driving arm 4, a connecting hole 45 is provided on the transverse arm 44, one end of the output shaft 61 is connected to the connecting hole 45, and the electric driver 6 is vertically disposed like the driving arm 4. When the output shaft 61 applies a vertical force to the transverse arm 44, the transverse arm 44 drives the driving arm 4 to move or swing integrally, so that the second hook 41 and the first hook 21 are unhooked. At the same time, the electric drive 6 arranged in the up-down direction facilitates installation in a small space.

As shown in fig. 2, an arm return spring 5 is further provided in the cooker, the arm return spring 5 is a compression spring, and the arm return spring 5 is disposed between the front side case 141 and the driving arm 4 so as to be able to drive the driving arm 4 to return and hold at a position where hooking can be achieved. In another embodiment, as shown in fig. 4, the arm return spring 5 is an extension spring, one end of which is connected to the transverse wall 44, and the other end of which is connected to the side housing 14, and after the driving arm 4 is pushed to move upwards, the driving arm 4 can move downwards under the pulling force of the extension spring and is reset and kept at a position where hooking can be achieved.

The second hook 41 and the first hook 21 can be hooked well by the arm return spring 5, but in order to unhook the second hook 41 from the first hook 21, the driving arm 4 needs to be driven to drive the second hook 41 to be detached from the first hook 21, and the movement of the driving arm 4 basically includes rotation and movement, and each of the following embodiments will be described separately.

In a first embodiment, as shown in fig. 1 and 2, the driving arm 4 is a lever member rotatably provided to the front side housing 141 of the main body 1 through a lever fulcrum shaft 46. In this embodiment, a positioning rib 142 extending downward is provided inside the front housing 141, a shaft hole 143 is provided in the positioning rib 142 to be engaged with the lever fulcrum shaft 46, the lever member is rotatably connected to the positioning rib 142 via the lever fulcrum shaft 46, and the second hook 41 is provided at a tip end of the lever member. Wherein the output shaft 61 of the electric drive 6 is connected to the lever member or indirectly to the lever member through the transverse arm 44, the force generated by the electric drive 6 being able to drive the lever member in rotation; in this way, the rotation of the lever member can be achieved by driving the arm of the lever member with the electric drive 6, so that the second hook 41 can be unhooked from the first hook 21 to allow the cover 2 to be opened.

In a second implementation manner, as shown in fig. 4, the driving arm 4 is a vertical rod member that keeps moving in the vertical direction, the front housing 141 is provided therein with guide side arms 144, upper through holes 145, and avoidance holes 131 that extend downward, the guide side arms 144 are provided on the left and right sides of the vertical rod member, the second hook members 41 provided at the top ends of the vertical rod member are inserted into the upper through holes 145, and the tail ends 43 provided at the vertical rod member are inserted into the avoidance holes 131, so that the vertical rod member can stably move up and down. The output shaft 61 of the electric actuator 6 is connected to the stem so as to be able to drive the stem up and down, thereby unhooking the second hook 41 from the first hook 21 to allow the cover 2 to be opened.

The electric driver 6 is in signal connection with the controller 7, and the controller 7 is used for driving the electric driver 6 to act according to a door opening command. Further, the device further comprises a cover opening instruction receiver 71, the cover opening instruction receiver 71 is in signal connection with the controller 7, and the cover opening instruction receiver 71 is used for receiving a cover opening instruction signal of a user and feeding back the cover opening instruction to the controller 7. The uncapping instruction can be a pressing and touching action of a user, or an uncapping signal instruction sent by the user or a system from the outside in a wireless mode. The uncapping instruction receiver 71 is a component or program for receiving the uncapping instruction of the user, and may be a tact switch, a button switch, or a cloud-side APP.

As shown in fig. 2 and 3, the cooker further includes a first pressure sensor 72, the first pressure sensor 72 is in signal connection with the controller 7, and the first pressure sensor 72 is configured to sense a working pressure of cooking and feed back a working pressure signal to the controller 7. In this way, the controller 7 can use the cooking pressure signal fed back by the first pressure sensor 72 to control other components, such as the heater of the cooker, the steam generator, the alarm device or the above-mentioned electric driver 6, etc.

Further, a second pressure sensor 73 is included, the second pressure sensor 73 has a limiting arm 74, the limiting arm 74 can move along with the change of the cooking pressure, the second pressure sensor 73 is used for sensing the working pressure of the cooking and enabling the limiting arm 74 to abut against the driving arm 4 to prevent the second hook body 41 from being unhooked from the first hook body 21 when the working pressure of the cooker is larger than zero. In this way, the second pressure sensor 73 senses the working pressure of the cooker during cooking, and the cover body 2 is effectively prevented from being opened accidentally during cooking. In this way, the cover body 2 can not be opened under the condition that pressure is applied to the inside of the cooker through the limitation of the second pressure sensor 73, the cover body 2 is effectively prevented from being opened accidentally when the cooker is used for cooking, and the use safety of the cooker is greatly improved.

Further technical solution may also be, as shown in fig. 3, the cooker further includes a pressure relief device 8, the pressure relief device 8 is installed on the lid 2 and is in signal connection with the controller 7, the pressure relief device 8 is used for releasing cooking pressure, and the controller 7 is used for driving the pressure relief device 8 to release cooking pressure first before opening the lid. In one embodiment, the cooker has a certain cooking pressure in the cooker body immediately after the cooking is finished, the first pressure sensor 72 feeds a pressure signal back to the controller 7, and in order to prevent the high-temperature hot steam from injuring a user when the cooker is opened, the controller 7 cannot control the electric driver 6 to perform the opening operation although receiving the opening instruction sent by the opening instruction receiver 71, but first controls the pressure relief device 8 to release the cooking pressure in the cooker, and after the cooking pressure in the cooker is released, the controller 7 can control the electric driver 6 to perform the opening operation.

Claims

1. The cooker with the automatic cover opening mechanism comprises a main body, a cover body and a cover opening holding spring, wherein the cover body is rotatably arranged on the rear side of the upper part of the main body; a first hook body is arranged on the front side of the cover body, a second hook body is arranged on the front side of the upper part of the main body, and the first hook body and the second hook body can be mutually hooked and unhooked so as to enable the cover body and the main body to be closed and opened; the hook is characterized in that a driving arm is further arranged on the inner side of the front side shell of the main body, the second hook body is arranged at the top end of the driving arm, the driving arm is arranged in an up-and-down extending mode, the tail end of the driving arm extends out of the lower portion of the main body, and therefore a user can conveniently operate the driving arm from the lower portion of the front side of the main body manually to unhook the second hook body from the first hook body; an electric drive is further provided, the electric drive being fixedly connected to the housing of the main body, an output shaft of the electric drive being connected to the drive arm so as to be able to drive the drive arm in a movement for unhooking the second hook from the first hook; an arm return spring is also arranged and used for driving the driving arm to return and keep the driving arm at a position where hooking can be realized.

2. The cooker with the automatic lid opening mechanism according to claim 1, wherein the driving arm is a lever member provided to the main body by a lever fulcrum shaft, and the output shaft of the electric driver is connected to the lever member so as to be able to unhook the second hook from the first hook when the lever member is driven to rotate.

3. The cooker with the automatic lid opening mechanism according to claim 1, wherein the driving arm is a vertical rod member which keeps moving in an up-and-down direction, and an output shaft of the electric driver is connected to the vertical rod member so as to be able to unhook the second hook body from the first hook body when driving the vertical rod member to move up and down.

4. The cooker with the automatic lid opening mechanism according to claim 1, wherein a transverse arm is further provided on the driving arm, and an output shaft of the electric driver is connected to the transverse arm.

5. The cooker with the automatic lid opening mechanism according to claim 1, wherein the electric driver is an electromagnet or a motor.

6. The cooker with an automatic lid opening mechanism according to any one of claims 1 to 5, further comprising a controller, wherein the electric driver is in signal connection with the controller, and the controller is used for driving the electric driver to act according to a lid opening command.

7. The cooker with the automatic lid opening mechanism according to claim 6, further comprising a lid opening instruction receiver in signal connection with the controller, wherein the lid opening instruction receiver is used for receiving a lid opening instruction signal of a user and feeding back the lid opening instruction to the controller.

8. The cooker with the automatic lid opening mechanism according to claim 6, further comprising a first pressure sensor in signal connection with the controller, the first pressure sensor being configured to sense an operating pressure of cooking and feed back the operating pressure signal to the controller.

9. The cooker with the automatic lid opening mechanism according to claim 6, further comprising a second pressure sensor having a restricting arm body movable with a change in cooking pressure, the second pressure sensor being adapted to sense an operating pressure of cooking and to make the restricting arm body abut against the driving arm so that the second hook body cannot be unhooked from the first hook body when the operating pressure of the cooker is greater than zero.

10. The cooker with the automatic cover opening mechanism according to claim 6, further comprising a pressure relief device mounted on the cover and in signal connection with the controller, the pressure relief device being configured to release the cooking pressure, the controller being configured to drive the pressure relief device to release the cooking pressure first before opening the cover.