WO2023231563A1 - 一种洗碗机 - Google Patents

一种洗碗机 Download PDF

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Publication number
WO2023231563A1
WO2023231563A1 PCT/CN2023/086090 CN2023086090W WO2023231563A1 WO 2023231563 A1 WO2023231563 A1 WO 2023231563A1 CN 2023086090 W CN2023086090 W CN 2023086090W WO 2023231563 A1 WO2023231563 A1 WO 2023231563A1
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WO
WIPO (PCT)
Prior art keywords
sphere
push
pull rod
groove
door body
Prior art date
Application number
PCT/CN2023/086090
Other languages
English (en)
French (fr)
Inventor
张希凤
高秋英
逯迎
Original Assignee
青岛海尔洗碗机有限公司
海尔智家股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 青岛海尔洗碗机有限公司, 海尔智家股份有限公司 filed Critical 青岛海尔洗碗机有限公司
Publication of WO2023231563A1 publication Critical patent/WO2023231563A1/zh

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details

Definitions

  • the invention belongs to the field of kitchen household appliances, and specifically relates to a dishwasher equipped with an automatic door opening device.
  • the main methods used by dishwashers to dry tableware include residual temperature drying, cold air drying and hot air drying.
  • residual temperature drying means that after the dishwasher completes the washing process, the exhaust port gradually discharges the moisture in the inner tank, and The tableware is dried through the residual temperature of the inner pot; cold air drying is when the dishwasher completes the washing process.
  • the air inlet sucks natural air into the inner pot through the fan, and sucks the moisture out through the exhaust port, and passes through the inner pot.
  • the residual heat dries the tableware, and the air intake and exhaust processes need to be realized by fans, which greatly increases energy consumption; hot air drying is when the dishwasher completes the washing process, and the air inlet blows in natural wind through the fan. After being heated by the PTC heating module, it enters the inner tank to dry the tableware, and sucks the moisture out through the exhaust port.
  • the air intake and exhaust processes need to be realized by a fan, which greatly increases energy consumption.
  • opening the door allows the moisture in the inner tank to be discharged out of the machine quickly. This not only improves the drying rate of the tableware, but also increases power consumption.
  • the user must manually open the dishwasher door. body, the high-temperature moisture in the inner tank diffuses outward, and there is a risk of scalding the user.
  • the automatic opening of the door controlled by the automatic door opening device often cannot accurately control the degree of door opening. If the door is opened too large, the outside world Dust entering the inner container may cause secondary contamination of the tableware. If the door is opened too small, auxiliary drying cannot be truly achieved.
  • the technical problem to be solved by the present invention is to overcome the shortcomings of the existing technology and provide a dishwasher to The purpose of improving the operation stability of the automatic door opening device is achieved.
  • a dishwasher includes a door body and an automatic door opening device located at the rear end of the door body.
  • the automatic door opening device includes a push-pull rod that can move back and forth in the front and rear direction under the action of a driving device.
  • the automatic door opening device also includes a limiter. Both ends of the piece are rotatably connected to the push-pull rod and the door body through a universal structure.
  • the push-pull rod moves in the horizontal direction under the action of the driving device, thereby pushing the door body to open automatically
  • the two ends of the limiter are respectively connected to the push-pull rod and the door body through a universal structure to ensure that the door automatically opens.
  • the body limits the opening degree of the door body to ensure that the door body opens to the same position every time, enhances the accuracy of the automatic door opening device, and improves the user experience.
  • the limiting member includes a connecting rod, a first sphere and a second sphere provided at both ends of the connecting rod.
  • the front end or top of the push-pull rod is provided with a first limiting groove for the first sphere to be embedded.
  • the rear side wall of the door body A second limiting groove for the second sphere to be embedded is provided.
  • the first sphere and the second sphere are not only in contact with each other respectively but also in the horizontal direction.
  • the inner surface of the first limiting groove and the inner surface of the second limiting groove are in sliding contact with each other and can also limit the movement stroke of the push-pull rod.
  • the first limiting groove is a spherical groove with an open front end formed by the front end of the push-pull rod being recessed backward.
  • the first sphere is inserted into the spherical groove through the spherical groove notch, and the first sphere interferes with the spherical groove.
  • the push-pull rod drives the first sphere to freely rotate 360° in the spherical groove to cause the connecting rod to twist.
  • the connecting rod drives the second sphere produce relative motion.
  • the first limiting groove is an elongated groove with an open top formed by the top of the push-pull rod being recessed downward.
  • the first sphere is embedded in the elongated groove, and the push-pull rod drives the first sphere to move horizontally in the front-to-back direction.
  • the first limiting groove is a long groove extending in the front and rear direction.
  • the push-pull rod moves horizontally in the front and rear direction, thereby driving the first sphere to move horizontally in the front and rear direction.
  • the first sphere rotates itself, thereby driving the connecting rod and the second sphere to move.
  • the front end of the push-pull rod is provided with a first gap, and the first sphere is embedded in the first limiting groove through the first gap, or the first limiting groove is a V-shaped groove whose radial size gradually decreases from front to back.
  • the maximum radial dimension of the first limiting groove is greater than the diameter of the first sphere.
  • the first sphere is inserted into the first limiting groove through the first gap or the wide section of the first limiting groove.
  • the driving device drives the push-pull rod to move toward the door body
  • the first sphere is driven by the push-pull rod.
  • the bottom moves from front to back, and finally contacts the rear side wall and/or both side walls of the first limiting groove to stop the backward movement.
  • the second limiting groove is a long groove with an open rear end formed by the rear side wall of the door body being recessed forward.
  • the second sphere is embedded in the second groove, and the push-pull rod drives the second sphere to move in the up and down direction.
  • the driving device drives the push-pull rod to move toward the door body, it drives the second ball to move upward until the second ball contacts the upper side wall and/or both side walls of the second limiting groove and stops the upward movement.
  • the driving device drives the push-pull rod to move toward the inner tank, it drives the second ball to move upward until the second ball contacts the lower side wall and/or both side walls of the second limiting groove and stops the upward movement.
  • a second gap connected with the second limiting groove is provided on the rear side wall of the door body, and the second sphere is inserted into or moved out of the second limiting groove through the second gap.
  • the first sphere and/or the second sphere can be inserted into and moved out of the first limiting groove and the second limiting groove, which is flexible to install and easy to disassemble.
  • the user can connect the limiting member with the push-pull rod and the door according to actual needs. Connect or separate entities to enhance user experience.
  • the two ends of the connecting rod are respectively fixedly connected to the outer peripheral wall of the first sphere and the outer peripheral wall of the second sphere on the corresponding side.
  • both ends of the connecting rod are fixedly connected to the first sphere and the second sphere.
  • the connecting rod and the sphere can be integrally connected by welding, pasting, etc.
  • the connection structure is simple, easy to process, and suitable for industrial production.
  • the first sphere has a first accommodation cavity with an open front end
  • one end of the connecting rod is inserted into the first accommodation cavity through the open front end and is rotationally connected to the push-pull rod
  • the second sphere has a second accommodation cavity with an open rear end.
  • the other end of the connecting rod is inserted into the second accommodation cavity through the rear end opening and is rotationally connected to the rear side wall of the door body.
  • the connecting rod is rotatably connected to the first sphere and/or the second sphere, and both ends of the opposite connecting rod are fixedly connected to the first sphere and the second sphere.
  • the first sphere and/or the second sphere are connected to the connecting rod.
  • the force load at the position is small, which prolongs the service life of the limiter, and allows the connecting rod to be fully twisted to drive the second ball to move upward, shortening the time required to automatically open the door to the designated position.
  • the automatic door opening device also includes a housing, which is provided with a driving device and a gear.
  • the gear is transmission connected to the driving device through the output shaft of the driving device.
  • One side of the push-pull rod is provided with a rack meshing with the gear.
  • the driving device drives the push-pull rod to move back and forth in the horizontal direction to realize the automatic opening or closing of the door.
  • the gear and rack mesh to form a transmission mechanism that can accurately control the movement stroke of the push-pull rod to ensure that the door is opened to Designated position eliminates the need to manually open the door, making the dishwasher more intelligent and enhancing the user experience.
  • the present invention has the following beneficial effects compared with the prior art.
  • the push-pull rod moves in the horizontal direction under the action of the driving device, thereby pushing the door to open automatically
  • the two ends of the stopper are respectively connected to the push-pull rod and the door through a universal structure to ensure automatic opening.
  • the door body limits the opening degree of the door body to ensure that the door body opens to the same position every time, enhances the accuracy of the automatic door opening device, and improves the user experience.
  • the connecting rod is rotationally connected to the first sphere and/or the second sphere, and the two ends of the connecting rod are Fixedly connected to the first sphere and the second sphere, the mechanical load at the connection between the first sphere and/or the second sphere and the connecting rod is small, which prolongs the service life of the stopper and allows the connecting rod to be fully twisted to drive the second The ball moves upward, shortening the time required to automatically open the door to the designated position.
  • the driving device drives the push-pull rod to move back and forth in the horizontal direction to realize the automatic opening or closing of the door, and the gear and rack mesh to form a transmission mechanism that can accurately control the movement stroke of the push-pull rod to ensure that the door is opened. To the designated position, there is no need to manually open the door, making the dishwasher more intelligent and enhancing the user's experience.
  • Figure 1 is a schematic structural diagram of the dishwasher with the door in a closed state in an embodiment of the present invention
  • Figure 2 is a schematic structural diagram of the dishwasher with the door in an open state in the embodiment of the present invention.
  • connection should be understood in a broad sense.
  • connection can be a fixed connection or a detachable connection.
  • Connection, or integral connection can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium.
  • connection or integral connection
  • connection can be a mechanical connection or an electrical connection
  • connection can be a direct connection or an indirect connection through an intermediate medium.
  • specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • an embodiment of the present invention provides a dishwasher, which includes a door body 100 and an automatic door opening device 300 located at the rear end of the door body 100.
  • the automatic door opening device 300 includes a door that can be opened under the action of a driving device.
  • the push-pull rod 301 moves back and forth in the front and rear direction.
  • the automatic door opening device 300 also includes a limiter 303. Both ends of the limiter 303 are rotationally connected to the push-pull rod 301 and the door body 100 through a universal structure respectively.
  • both ends of the limiter 303 are rotationally connected to the push-pull rod 301 and the door body 100 through a universal structure respectively, limiting the opening degree of the door body 100, ensuring that the door body 100 is opened to the same position every time, and enhancing the automatic door opening device. 300% accuracy improves user experience.
  • the dishwasher includes an inner pot 200.
  • the front end of the inner pot 200 has an opening.
  • the door 100 corresponds to the opening of the inner pot 200.
  • the automatic door opening device 300 is connected to the inner pot 200.
  • the medial walls are connected.
  • the limiting member 303 includes a connecting rod 3033, a first sphere 3031 and a second sphere 3032 provided at both ends of the connecting rod 3033.
  • the front end or top of the push-pull rod 301 is provided with a The first limiting groove 3011 is inserted into which the first sphere 3031 is embedded.
  • the rear side wall 101 of the door body 100 is provided with a second limiting groove 1011 into which the second sphere 3032 is embedded.
  • the first sphere 3031 and the second sphere 3032 since the distance between the centers of the first sphere 3031 and the second sphere 3032 is constant or maintained within a certain range, when the driving device drives the push-pull rod 301 to move in the horizontal direction, the first sphere 3031 and the second sphere The sphere 3032 not only slidably contacts the inner surfaces of the first limiting groove 3011 and the second limiting groove 1011 respectively, but also limits the movement stroke of the push-pull rod 301 .
  • the first limiting groove 3011 is a spherical groove with an open front end formed by the front end of the push-pull rod 301 being recessed backward, and the first ball 3031 is inserted into the spherical groove through the spherical groove notch.
  • the first sphere 3031 has an interference fit with the spherical groove.
  • the push-pull rod 301 drives the first sphere 3031 to freely rotate 360° in the spherical groove to cause the connecting rod 3033 to twist. Under the action of torsion, the connecting rod 3033 rotates freely. 3033 drives the second sphere 3032 to produce relative motion.
  • the second limiting groove 1011 is a long groove with an open rear end formed by the rear side wall 101 of the door body 100 being recessed forward, and the second sphere 3032 is embedded in the second limiting groove 1011.
  • the push-pull rod 301 drives the second sphere 3032 to move in the up and down direction.
  • the driving device drives the push-pull rod 301 to move toward the door body 100, it drives the second ball 3032 to move upward until the second ball 3032 abuts the upper side wall and/or both side walls of the second limiting groove 1011. Then the upward movement stops; when the driving device drives the push-pull rod 301 to move toward the inner pot 200, the second ball 3032 is driven to move upward until the second ball 3032 and the lower side wall and/or both side walls of the second limiting groove 1011 abut to stop the upward movement.
  • the lower side wall of the second limiting groove 1011 is in contact with the third The matching arc-shaped walls of the two spheres 3032 make the rotation of the second sphere 3032 smoother.
  • the rear side wall 101 of the door body 100 is provided with a second gap connected with the second limiting groove 1011 , and the second ball 3032 is inserted into or moved out of the second gap. inside the second limit slot 1011.
  • the first sphere 3031 and/or the second sphere 3032 can be inserted into and moved out of the first limiting groove 3011 and the second limiting groove 1011.
  • the installation is flexible and the disassembly is convenient.
  • the user can move the limiting member 303 according to actual needs. Connect or separate with the push-pull rod 301 and the door body 100 to improve user experience.
  • the two ends of the connecting rod 3033 are fixedly connected to the outer peripheral wall of the first sphere 3031 and the second sphere 3032 on the corresponding side respectively.
  • the connecting rod 3033 and the sphere can be integrally connected by welding, pasting, etc.
  • the connection structure is simple, processing is convenient, and it is suitable for industrial production.
  • the first ball 3031 has a first accommodation cavity with an open front end
  • one end of the connecting rod 3033 is inserted into the first accommodation cavity through the open front end and is rotationally connected to the push-pull rod 301
  • the second sphere 3032 has an open rear end.
  • the other end of the connecting rod 3033 is inserted into the second accommodation cavity through the rear end opening and is rotationally connected to the rear side wall 101 of the door body 100 .
  • the connecting rod 3033 is rotationally connected to the first sphere 3031 and/or the second sphere 3032, and both ends of the opposite connecting rod 3033 are fixedly connected to the first sphere 3031 and the second sphere 3032.
  • the first sphere 3031 and/or the second sphere 3032 are fixedly connected to each other.
  • the mechanical load at the connection between the second sphere 3032 and the connecting rod 3033 is small, which prolongs the service life of the limiter 303, and fully twists the connecting rod 3033 to drive the second sphere 3032 to move upward, shortening the time required to automatically open the door to the designated position. time.
  • the first sphere 3031 and the second sphere 3032 may be elastic spheres.
  • the diameter of the first sphere 3031 is larger than the radial size of the opening end of the first limiting groove 3011
  • the diameter of the second sphere 3032 is larger than The radial size of the open end of the second limiting groove 1011 enables the first sphere 3031 and the second sphere 3032 to move smoothly along the first limiting groove 3011 and the second limiting groove 1011 respectively.
  • the automatic door opening device 300 also includes a housing 302.
  • the housing 302 is provided with a driving device and a gear.
  • the gear is transmission connected to the driving device through the output shaft of the driving device, and the push-pull rod
  • One side of 301 is provided with a rack 3012 meshing with the gear.
  • the driving device drives the push-pull rod 301 to move back and forth in the horizontal direction to realize automatic opening or closing of the door 100.
  • the gear and the rack 3012 mesh to form a transmission mechanism that can accurately control the movement stroke of the push-pull rod 301, ensuring that The door 100 is opened to a designated position, eliminating the need to manually open the door 100, making the dishwasher more intelligent and enhancing the user's experience.
  • the push-pull rod 301 moves in the horizontal direction under the action of the driving device, thereby pushing the door 100 to open automatically, and the two ends of the limiter 303 rotate through the universal structure, the push-pull rod 301 and the door 100 respectively.
  • the connection on the basis of ensuring the automatic opening of the door 100, limits the opening degree of the door 100, ensuring that the door 100 is opened to the same position every time, enhancing the accuracy of the automatic door opening device 300, and improving the user experience.
  • the first limiting groove 3011 is a long groove with an open top formed by the top of the push-pull rod 301 being recessed downward, and the first sphere 3031 is embedded in the long groove. In the slot, the push-pull rod 301 drives the first sphere 3031 to move horizontally in the front-to-back direction.
  • the first limiting groove 3011 is a long groove extending in the front-to-back direction.
  • the push-pull rod 301 moves horizontally in the front-to-back direction, thereby driving the first ball 3031 to move horizontally in the front-to-back direction.
  • the first sphere 3031 rotates itself, thereby driving the connecting rod 3033 and the second sphere 3032 to move.
  • the rear side wall of the elongated groove is The arc-shaped wall matching the first sphere 3031 makes the first sphere 3031 rotate more smoothly.
  • the front end of the push-pull rod 301 is provided with a first gap, and the first sphere 3031 is inserted into the first limiting groove 3011 through the first gap, or the first limiting groove 3011 has a radial size that gradually decreases from front to back. small V type groove, the maximum radial dimension of the first limiting groove 3011 is larger than the diameter of the first sphere 3031.
  • the first ball 3031 is inserted into the first limiting groove 3011 through the first gap or the wide section of the first limiting groove 3011.
  • the driving device drives the push-pull rod 301 to move toward the door body 100
  • the first ball 3031 is inserted into the first limiting groove 3011.
  • 3031 moves from front to back driven by the push-pull rod 301, and finally abuts against the rear side wall and/or both side walls of the first limiting groove 3011 to stop moving backward.
  • the second limiting groove 1011 is a long groove with an open rear end formed by the rear side wall 101 of the door body 100 being recessed forward, and the second sphere 3032 is embedded in the second limiting groove 1011.
  • the push-pull rod 301 drives the second sphere 3032 to move in the up and down direction.
  • the driving device drives the push-pull rod 301 to move toward the door body 100, it drives the second ball 3032 to move upward until the second ball 3032 abuts the upper side wall and/or both side walls of the second limiting groove 1011. Then the upward movement stops; when the driving device drives the push-pull rod 301 to move toward the inner pot 200, the second ball 3032 is driven to move upward until the second ball 3032 and the lower side wall and/or both side walls of the second limiting groove 1011 To stop the upward movement, preferably, the upper side wall and/or the lower side wall of the second limiting groove 1011 is an arc-shaped wall that matches the second ball 3032, so that the second ball 3032 rotates more smoothly.
  • the rear side wall 101 of the door body 100 is provided with a second gap connected with the second limiting groove 1011 , and the second ball 3032 is inserted into or moved out of the second gap. inside the second limit slot 1011.
  • the first sphere 3031 and/or the second sphere 3032 can be inserted into and moved out of the first limiting groove 3011 and the second limiting groove 1011.
  • the installation is flexible and the disassembly is convenient.
  • the user can move the limiting member 303 according to actual needs. Connect or separate with the push-pull rod 301 and the door body 100 to improve user experience.
  • the driving device drives the push-pull rod 301 to move toward the door 100
  • the first ball 3031 moves from front to back, and drives the second ball 3032 to move upward through the connecting rod 3033 until it is blocked and stops moving, thereby driving
  • the device stops driving the push-pull rod 301 to move forward, causing the door 100 to open. Open to the specified location.

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Abstract

一种洗碗机，包括门体（100）和设于门体（100）后端的自动开门装置（300），自动开门装置（300）包括在驱动装置作用下可沿前后方向往返运动的推拉杆（301），自动开门装置（300）还包括限位件（303），限位件（303）两端分别经万向结构与推拉杆（301）和门体（100）转动连接。推拉杆（301）在驱动装置的作用下沿水平方向运动，进而推动门体（100）自动打开，而限位件（303）两端分别经万向结构与推拉杆（301）和门体（100）转动连接，在保证自动打开门体（100）的基础上，限制门体（100）打开的程度，保证门体（100）每次打开至相同位置，增强自动开门装置（300）的精确性，提升用户使用体验。

Description

一种洗碗机 技术领域
本发明属于厨房家用电器领域，具体地说，涉及一种安装有自动开门装置的洗碗机。
背景技术
洗碗机对餐具进行干燥的方式主要包括余温干燥、冷风干燥和热风干燥，其中，余温干燥是在洗碗机完成洗涤程序后，排气口逐步将内胆中的湿气排出，并通过内胆的余温将餐具烘干；冷风干燥是在洗碗机完成洗涤程序后，进气口通过风机将自然风吸入内胆中，并将湿气通过排气口吸出，通过内胆的余温将餐具烘干，而进风过程和排风过程需要通过风机实现，大大增加了能耗；热风干燥是在洗碗机完成洗涤程序后，进气口通过风机吹入自然风，自然风被PTC加热模组加热后进入内胆中以将餐具烘干，并将湿气通过排气口吸出，而进风过程和排风过程需要通过风机实现，大大增加了能耗。
在洗碗机完成洗涤程序后，打开门体把内胆中的湿气较快地排出机体外，不仅能提高餐具的干燥率，还未提高耗电量，但是，用户手动打开洗碗机门体，内胆中的高温湿气向外弥散，存在烫伤用户的风险，而通过自动开门装置控制门体自动打开，往往无法精确控制门体打开的程度，如果门体打开的程度过大，外界的灰尘进入内胆中可能造成餐具二次污染，如果门体打开的程度过小，无法真正实现辅助干燥。
有鉴于此，特提出本发明。
发明内容
本发明要解决的技术问题在于克服现有技术的不足，提供一种洗碗机，以 实现提高自动开门装置运行稳定性的目的。
为解决上述技术问题，本发明采用技术方案的基本构思是：
一种洗碗机，包括门体和设于门体后端的自动开门装置，自动开门装置包括在驱动装置作用下可沿前后方向往返运动的推拉杆，自动开门装置还包括限位件，限位件两端分别经万向结构与推拉杆和门体转动连接。
在上述方案中，推拉杆在驱动装置的作用下沿水平方向运动，进而推动门体自动打开，而限位件两端分别经万向结构与推拉杆和门体转动连接，在保证自动打开门体的基础上，限制门体打开的程度，保证门体每次打开至相同位置，增强自动开门装置的精确性，提升用户使用体验。
进一步，限位件包括连接杆、设于连接杆两端的第一球体和第二球体，推拉杆的前端或顶端设有供第一球体嵌入的第一限位槽，门体的后侧壁上设有供第二球体嵌入的第二限位槽。
在上述方案中，由于第一球体和第二球体的球心之间的距离恒定或保持在一定区间内，当驱动装置驱动推拉杆沿水平方向运动时，第一球体和第二球体不仅分别与第一限位槽的内表面和第二限位槽的内表面可滑动地彼此接触，还能限定推拉杆的运动行程。
进一步，第一限位槽为推拉杆的前端向后凹陷形成的前端开口的球形凹槽，第一球体经球形凹槽槽口嵌入球形凹槽内，第一球体与球形凹槽过盈配合。
在上述方案中，当驱动装置驱动推拉杆沿水平方向运动时，推拉杆带动第一球体在球形凹槽内360°自由旋转而使连接杆发生扭转，在扭力作用下，连接杆带动第二球体产生相对运动。
进一步，第一限位槽为推拉杆的顶端向下凹陷形成的顶端开口的长条形凹槽，第一球体嵌入长条形凹槽内，推拉杆带动第一球体沿前后方向水平运动。
在上述方案中，第一限位槽为前后方向延伸的长条形凹槽，在驱动装置作用下，推拉杆沿前后方向水平运动，进而带动第一球体沿前后方向水平运动，当第一球体与长条形凹槽的后侧壁相抵接时，第一球体自身旋转，进而带动连接杆和第二球体运动。
进一步，推拉杆的前端设有第一豁口，第一球体经第一豁口嵌入第一限位槽内，或第一限位槽为径向尺寸由前向后逐渐减小的V型凹槽，第一限位槽的最大径向尺寸大于第一球体的直径。
在上述方案中，第一球体经第一豁口或第一限位槽的宽口段嵌入第一限位槽内，当驱动装置驱动推拉杆朝向门体运动时，第一球体在推拉杆的带动下由前向后运动，并最终与第一限位槽的后侧壁和/或两侧壁相抵接而停止向后运动。
进一步，第二限位槽为门体的后侧壁向前凹陷形成的后端开口的长条形凹槽，第二球体嵌入第二凹槽内，推拉杆带动第二球体沿上下方向运动。
在上述方案中，当驱动装置驱动推拉杆朝向门体运动时，带动第二球体向上运动，直至第二球体与第二限位槽的上侧壁和/或两侧壁相抵接而停止向上运动；当驱动装置驱动推拉杆朝向内胆运动时，带动第二球体向上运动，直至第二球体与第二限位槽的下侧壁和/或两侧壁相抵接而停止向上运动。
进一步，门体的后侧壁上设有与第二限位槽连通的第二豁口，第二球体经第二豁口嵌入或移出第二限位槽内。
在上述方案中，第一球体和/或第二球体可以嵌入和移出第一限位槽和第二限位槽，安装灵活，拆卸方便，用户可以根据实际需要将限位件与推拉杆和门体连接或分离，提升用户体验。
进一步，连接杆的两端分别与对应侧的第一球体的外周壁和第二球体的外周壁固定连接。
在上述方案中，连接杆两端与第一球体和第二球体固定连接，例如连接杆与球体可以通过焊接、粘贴等方式一体连接，连接结构简单，加工方便，适宜工业化生产。
进一步，第一球体具有前端敞口的第一容纳腔，连接杆的一端经前端敞口嵌入第一容纳腔与推拉杆转动连接，和/或第二球体具有后端敞口的第二容纳腔，连接杆的另一端经后端敞口嵌入第二容纳腔与门体的后侧壁转动连接。
在上述方案中，连接杆与第一球体和/或第二球体转动连接，相对连接杆两端与第一球体和第二球体固定连接，第一球体和/或第二球体与连接杆的连接处的受力载荷小，延长限位件的使用寿命，而且使连接杆充分扭转而带动第二球体向上运动，缩短自动开门至指定位置所需的时间。
进一步，自动开门装置还包括壳体，壳体内设有驱动装置和齿轮，齿轮经驱动装置的输出轴与驱动装置传动连接，推拉杆的一侧设有与齿轮相啮合的齿条。
在上述方案中，驱动装置驱动推拉杆沿水平方向往返运动，实现门体的自动打开或关闭，而且通过齿轮与齿条相啮合形成传动机构能够精确控制推拉杆的运动行程，保证门体打开至指定位置，无需手动打开门体，使洗碗机更加智能化，增强用户的使用体验。
采用上述技术方案后，本发明与现有技术相比具有以下有益效果。
1、本发明中，推拉杆在驱动装置的作用下沿水平方向运动，进而推动门体自动打开，而限位件两端分别经万向结构与推拉杆和门体转动连接，在保证自动打开门体的基础上，限制门体打开的程度，保证门体每次打开至相同位置，增强自动开门装置的精确性，提升用户使用体验。
2、本发明中，连接杆与第一球体和/或第二球体转动连接，相对连接杆两端 与第一球体和第二球体固定连接，第一球体和/或第二球体与连接杆的连接处的受力载荷小，延长限位件的使用寿命，而且使连接杆充分扭转而带动第二球体向上运动，缩短自动开门至指定位置所需的时间。
3、本发明中，驱动装置驱动推拉杆沿水平方向往返运动，实现门体的自动打开或关闭，而且通过齿轮与齿条相啮合形成传动机构能够精确控制推拉杆的运动行程，保证门体打开至指定位置，无需手动打开门体，使洗碗机更加智能化，增强用户的使用体验。
下面结合附图对本发明的具体实施方式作进一步详细的描述。
附图说明
附图作为本发明的一部分，用来提供对本发明的进一步的理解，本发明的示意性实施例及其说明用于解释本发明，但不构成对本发明的不当限定。显然，下面描述中的附图仅仅是一些实施例，对于本领域普通技术人员来说，在不付出创造性劳动的前提下，还可以基于这些附图获得其他附图。在附图中：
图1是本发明实施例中的门体处于关闭状态下洗碗机的结构示意图；
图2是本发明实施例中的门体处于打开状态下洗碗机的结构示意图。
图中：
100、门体；101、后侧壁；1011、第二限位槽；
200、内胆；
300、自动开门装置；301、推拉杆；3011、第一限位槽；3012、齿条；302、
壳体；303、限位件；3031、第一球体；3032、第二球体；3033、连接杆。
需要说明的是，这些附图和文字描述并不旨在以任何方式限制本发明的构思范围，而是通过参考特定实施例为本领域技术人员说明本发明的概念。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对实施例中的技术方案进行清楚、完整地描述，以下实施例用于说明本发明，但不用来限制本发明的范围。
在本发明的描述中，需要说明的是，术语“上”、“下”、“前”、“后”、“左”、“右”、“纵向”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
实施例一
如图1和图2所示，本发明实施例中提供了一种洗碗机，包括门体100和设于门体100后端的自动开门装置300，自动开门装置300包括在驱动装置作用下可沿前后方向往返运动的推拉杆301，自动开门装置300还包括限位件303，限位件303两端分别经万向结构与推拉杆301和门体100转动连接。
本实施例中，限位件303两端分别经万向结构与推拉杆301和门体100转动连接，限制门体100打开的程度，保证门体100每次打开至相同位置，增强自动开门装置300的精确性，提升用户使用体验。
如图1和图2所示，本实施例中，洗碗机包括内胆200，内胆200的前端具有开口，门体100对应封闭内胆200的开口，自动开门装置300与内胆200的 内侧壁相连。
如图1和图2所示，本实施例中，限位件303包括连接杆3033、设于连接杆3033两端的第一球体3031和第二球体3032，推拉杆301的前端或顶端设有供第一球体3031嵌入的第一限位槽3011，门体100的后侧壁101上设有供第二球体3032嵌入的第二限位槽1011。
本实施例中，由于第一球体3031和第二球体3032的球心之间的距离恒定或保持在一定区间内，当驱动装置驱动推拉杆301沿水平方向运动时，第一球体3031和第二球体3032不仅分别与第一限位槽3011的内表面和第二限位槽1011的内表面可滑动地彼此接触，还能限定推拉杆301的运动行程。
如图1和图2所示，本实施例中，第一限位槽3011为推拉杆301的前端向后凹陷形成的前端开口的球形凹槽，第一球体3031经球形凹槽槽口嵌入球形凹槽内，第一球体3031与球形凹槽过盈配合。
本实施例中，当驱动装置驱动推拉杆301沿水平方向运动时，推拉杆301带动第一球体3031在球形凹槽内360°自由旋转而使连接杆3033发生扭转，在扭力作用下，连接杆3033带动第二球体3032产生相对运动。
如图1和图2所示，本实施例中，第二限位槽1011为门体100的后侧壁101向前凹陷形成的后端开口的长条形凹槽，第二球体3032嵌入第二凹槽内，推拉杆301带动第二球体3032沿上下方向运动。
本实施例中，当驱动装置驱动推拉杆301朝向门体100运动时，带动第二球体3032向上运动，直至第二球体3032与第二限位槽1011的上侧壁和/或两侧壁相抵接而停止向上运动；当驱动装置驱动推拉杆301朝向内胆200运动时，带动第二球体3032向上运动，直至第二球体3032与第二限位槽1011的下侧壁和/或两侧壁相抵接而停止向上运动，优选的，第二限位槽1011的下侧壁为与第 二球体3032相适配的弧形壁，使第二球体3032转动更加顺畅。
如图1和图2所示，本实施例中，门体100的后侧壁101上设有与第二限位槽1011连通的第二豁口，第二球体3032经第二豁口嵌入或移出第二限位槽1011内。
本实施例中，第一球体3031和/或第二球体3032可以嵌入和移出第一限位槽3011和第二限位槽1011，安装灵活，拆卸方便，用户可以根据实际需要将限位件303与推拉杆301和门体100连接或分离，提升用户体验。
本实施例中，连接杆3033的两端分别与对应侧的第一球体3031的外周壁和第二球体3032的外周壁固定连接，例如连接杆3033与球体可以通过焊接、粘贴等方式一体连接，连接结构简单，加工方便，适宜工业化生产。
或者，第一球体3031具有前端敞口的第一容纳腔，连接杆3033的一端经前端敞口嵌入第一容纳腔与推拉杆301转动连接，和/或第二球体3032具有后端敞口的第二容纳腔，连接杆3033的另一端经后端敞口嵌入第二容纳腔与门体100的后侧壁101转动连接。
本实施例中，连接杆3033与第一球体3031和/或第二球体3032转动连接，相对连接杆3033两端与第一球体3031和第二球体3032固定连接，第一球体3031和/或第二球体3032与连接杆3033的连接处的受力载荷小，延长限位件303的使用寿命，而且使连接杆3033充分扭转而带动第二球体3032向上运动，缩短自动开门至指定位置所需的时间。
本实施例中，第一球体3031和第二球体3032可以为具有弹性的球体，优选的，第一球体3031的直径大于第一限位槽3011开口端的径向尺寸，第二球体3032的直径大于第二限位槽1011开口端的径向尺寸，使第一球体3031和第二球体3032分别沿第一限位槽3011和第二限位槽1011平稳运动。
如图1和图2所示，本实施例中，自动开门装置300还包括壳体302，壳体302内设有驱动装置和齿轮，齿轮经驱动装置的输出轴与驱动装置传动连接，推拉杆301的一侧设有与齿轮相啮合的齿条3012。
本实施例中，驱动装置驱动推拉杆301沿水平方向往返运动，实现门体100的自动打开或关闭，而且通过齿轮与齿条3012相啮合形成传动机构能够精确控制推拉杆301的运动行程，保证门体100打开至指定位置，无需手动打开门体100，使洗碗机更加智能化，增强用户的使用体验。
通过上述的洗碗机，推拉杆301在驱动装置的作用下沿水平方向运动，进而推动门体100自动打开，而限位件303两端分别经万向结构与推拉杆301和门体100转动连接，在保证自动打开门体100的基础上，限制门体100打开的程度，保证门体100每次打开至相同位置，增强自动开门装置300的精确性，提升用户使用体验。
实施例二
本实施例与上述实施例一的区别在于：所述的第一限位槽3011为推拉杆301的顶端向下凹陷形成的顶端开口的长条形凹槽，第一球体3031嵌入长条形凹槽内，推拉杆301带动第一球体3031沿前后方向水平运动。
本实施例中，第一限位槽3011为前后方向延伸的长条形凹槽，在驱动装置作用下，推拉杆301沿前后方向水平运动，进而带动第一球体3031沿前后方向水平运动，当第一球体3031与长条形凹槽的后侧壁相抵接时，第一球体3031自身旋转，进而带动连接杆3033和第二球体3032运动，优选的，长条形凹槽的后侧壁为与第一球体3031相适配的弧形壁，使第一球体3031转动更加顺畅。
本实施例中，推拉杆301的前端设有第一豁口，第一球体3031经第一豁口嵌入第一限位槽3011内，或第一限位槽3011为径向尺寸由前向后逐渐减小的V 型凹槽，第一限位槽3011的最大径向尺寸大于第一球体3031的直径。
本实施例中，第一球体3031经第一豁口或第一限位槽3011的宽口段嵌入第一限位槽3011内，当驱动装置驱动推拉杆301朝向门体100运动时，第一球体3031在推拉杆301的带动下由前向后运动，并最终与第一限位槽3011的后侧壁和/或两侧壁相抵接而停止向后运动。
如图1和图2所示，本实施例中，第二限位槽1011为门体100的后侧壁101向前凹陷形成的后端开口的长条形凹槽，第二球体3032嵌入第二凹槽内，推拉杆301带动第二球体3032沿上下方向运动。
本实施例中，当驱动装置驱动推拉杆301朝向门体100运动时，带动第二球体3032向上运动，直至第二球体3032与第二限位槽1011的上侧壁和/或两侧壁相抵接而停止向上运动；当驱动装置驱动推拉杆301朝向内胆200运动时，带动第二球体3032向上运动，直至第二球体3032与第二限位槽1011的下侧壁和/或两侧壁相抵接而停止向上运动，优选的，第二限位槽1011的上侧壁和/或下侧壁为与第二球体3032相适配的弧形壁，使第二球体3032转动更加顺畅。
如图1和图2所示，本实施例中，门体100的后侧壁101上设有与第二限位槽1011连通的第二豁口，第二球体3032经第二豁口嵌入或移出第二限位槽1011内。
本实施例中，第一球体3031和/或第二球体3032可以嵌入和移出第一限位槽3011和第二限位槽1011，安装灵活，拆卸方便，用户可以根据实际需要将限位件303与推拉杆301和门体100连接或分离，提升用户体验。
通过上述的洗碗机，当驱动装置驱动推拉杆301朝向门体100运动时，第一球体3031由前向后运动，并通过连接杆3033带动第二球体3032向上运动直至受阻停止运动，进而驱动装置停止驱动推拉杆301向前运动，使门体100打 开至指定位置。
以上所述仅是本发明的较佳实施例而已，并非对本发明作任何形式上的限制，虽然本发明已以较佳实施例揭露如上，然而并非用以限定本发明，任何熟悉本专利的技术人员在不脱离本发明技术方案范围内，当可利用上述提示的技术内容作出些许更动或修饰为等同变化的等效实施例，但凡是未脱离本发明技术方案的内容，依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均仍属于本发明方案的范围。

Claims (10)

  1. 一种洗碗机，包括门体和设于门体后端的自动开门装置，自动开门装置包括在驱动装置作用下可沿前后方向往返运动的推拉杆，其特征在于：自动开门装置还包括限位件，限位件两端分别经万向结构与推拉杆和门体转动连接。
  2. 根据权利要求1所述的一种洗碗机，其特征在于：限位件包括连接杆、设于连接杆两端的第一球体和第二球体，推拉杆的前端或顶端设有供第一球体嵌入的第一限位槽，门体的后侧壁上设有供第二球体嵌入的第二限位槽。
  3. 根据权利要求2所述的一种洗碗机，其特征在于：第一限位槽为推拉杆的前端向后凹陷形成的前端开口的球形凹槽，第一球体经球形凹槽槽口嵌入球形凹槽内，第一球体与球形凹槽过盈配合。
  4. 根据权利要求2所述的一种洗碗机，其特征在于：第一限位槽为推拉杆的顶端向下凹陷形成的顶端开口的长条形凹槽，第一球体嵌入长条形凹槽内，推拉杆带动第一球体沿前后方向水平运动。
  5. 根据权利要求4所述的一种洗碗机，其特征在于：推拉杆的前端设有第一豁口，第一球体经第一豁口嵌入第一限位槽内，或第一限位槽为径向尺寸由前向后逐渐减小的V型凹槽，第一限位槽的最大径向尺寸大于第一球体的直径。
  6. 根据权利要求2所述的一种洗碗机，其特征在于：第二限位槽为门体的后侧壁向前凹陷形成的后端开口的长条形凹槽，第二球体嵌入第二凹槽内，推拉杆带动第二球体沿上下方向运动。
  7. 根据权利要求6所述的一种洗碗机，其特征在于：门体的后侧壁上设有与第二限位槽连通的第二豁口，第二球体经第二豁口嵌入或移出第二限位槽内。
  8. 根据权利要求2所述的一种洗碗机，其特征在于：连接杆的两端分别与对应侧的第一球体的外周壁和第二球体的外周壁固定连接。
  9. 根据权利要求2所述的一种洗碗机，其特征在于：第一球体具有前端敞 口的第一容纳腔，连接杆的一端经前端敞口嵌入第一容纳腔与推拉杆转动连接，和/或第二球体具有后端敞口的第二容纳腔，连接杆的另一端经后端敞口嵌入第二容纳腔与门体的后侧壁转动连接。
  10. 根据权利要求1至9任一所述的一种洗碗机，其特征在于：自动开门装置还包括壳体，壳体内设有驱动装置和齿轮，齿轮经驱动装置的输出轴与驱动装置传动连接，推拉杆的一侧设有与齿轮相啮合的齿条。
PCT/CN2023/086090 2022-05-31 2023-04-04 一种洗碗机 WO2023231563A1 (zh)

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JP2003312267A (ja) * 2002-04-19 2003-11-06 Oi Seisakusho Co Ltd バックドアの自動開閉装置
JP2007196005A (ja) * 2007-03-23 2007-08-09 Matsushita Electric Ind Co Ltd 食器洗い機
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