A cover opening and power-off interlock protection device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIAOCHENG VOCATIONAL & TECHN COLLEGE
- Filing Date
- 2025-09-19
- Publication Date
- 2026-08-07
AI Technical Summary
[0003]由于和面机中途需要多次打开设备，以用于调整原料的加入或者检查面团的状态，而和面机在工作时，其内部的搅拌叶片在电机的驱动下高速旋转，若盖子打开时机器继续运转，用户的手或工具可能被卷入，造成严重伤害，且面团或水可能因离心力甩出污染环境，基于此，本方案提供一种开盖断电联锁保护装置解决上述提出的问题
1.本实用新型中设置有启动件，当开盖状态下，启动件中用于控制电机开启和关闭的控制开关处于断开状态，此时电机处于关闭状态，方便工人调整原料的加入或者检查面团的状态，合盖后，通过按压按压件中的按压板，使得按压板通过滑动板驱动下侧的固定板下移，固定板进而带动锁止块和驱动块一并下移，锁止块下移过程中，通过下端设置的倾斜面对锁止件中的插块进行挤压，在弹簧三的作用下，使得插块最终插入到锁止块的开口处，从而使得锁止件对锁止块和驱动块的位置进行固定，此时，驱动块会随锁止块一同移动，移动的过程中，驱动块下端两侧会对曲杆的上端进行挤压，从而使得曲杆的下端相互靠近，并最终使得下侧的两个绝缘座相互靠近，直至分别安装在两个绝缘座上的控制开关接触在一起，从而使得控制开关进入连通的状态，使得电机进入到工作状态，此时放置在安装槽内部的固定组件中的卡块在弹簧一的作用下，插入到滑动板的卡槽中，从而对滑动板进行限位固定，从而使得和面机机体与箱盖之间进行固定，本装置通过按压件、固定组件、锁止件和启动件的相互配合，使得使用者需要启动设备使，需要将箱盖合盖并进行锁止，才能启动电机，当箱盖与和面机机体解除锁止的状态后，启动件中用于控制电机开启和关闭的控制开关处于断开状态，此时电机处于关闭状态，通过开盖即停的设置，能立即切断动力，避免出现盖子打开时，机器继续运转，将用户的手或工具卷入之类的事故。
Smart Images
Figure CN224597440U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of dough mixer equipment, specifically to a power-off interlock protection device for opening the lid. Background Technology
[0002] Noodles are a popular food. In the early days, dough making relied mainly on manual labor, requiring the hand to knead, stir, and mix flour, water, salt, and other ingredients into dough. With the development of technology, mechanical dough making has gradually replaced manual labor. The main working principle includes: using a motor to drive the stirring blades or hook-shaped tool to rotate, mixing the flour, water, and other ingredients. After mixing, the dough is kneaded and stretched. By adjusting the speed of the motor, the dough is kneaded to a certain hardness and extensibility, ultimately forming a dough with good extensibility and smoothness.
[0003] Since the dough mixer needs to be opened multiple times during operation to adjust the addition of ingredients or check the state of the dough, and the mixing blades inside the dough mixer rotate at high speed driven by the motor, if the machine continues to run with the lid open, the user's hands or tools may be caught in, causing serious injury. Furthermore, dough or water may be thrown out due to centrifugal force, polluting the environment. Based on this, this solution provides a lid-opening power-off interlock protection device to solve the above-mentioned problems. Utility Model Content
[0004] To solve the above-mentioned technical problems, a cover-opening power-off interlock protection device is provided. This technical solution solves the problems mentioned in the background technology.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A power-off interlock protection device for opening the lid includes a dough mixer body and a cover rotatably mounted on the dough mixer body. A motor for dough mixing is fixedly mounted on the left end of the dough mixer body. A mounting frame is fixedly connected to the cover, and a fixing block is fixedly connected to the mounting frame. A fixing plate is provided on the lower side of the fixing block. A locking block and a driving block are fixedly connected to the fixing plate. A pressing component for driving the fixing plate to rise and fall is provided on the fixing block. A fixing component for fixing the pressing component is provided inside the fixing block. A fixing frame is fixedly connected to the dough mixer body, and a housing is fixedly connected to the fixing frame. A locking component and a starting component are provided inside the housing. The starting component is used to cooperate with the driving block to switch the motor on and off. The starting component includes two sets of rotating shafts fixedly connected to the housing. A crank is rotatably mounted on each of the two sets of rotating shafts, and the cranks are symmetrically arranged. An insulating seat is rotatably mounted on the lower end of the crank. A control switch for controlling the start and stop of the motor is fixedly mounted on the insulating seat, and a spring is fixedly connected between the insulating seat and the crank.
[0006] Preferably, a rotating shaft two is fixedly connected to the housing on one side of the crank, a rotating seat is rotatably mounted on the rotating shaft two, and a spring four is fixedly connected between the rotating seat and the crank.
[0007] Preferably, a limiting rod two is fixedly connected to the curved rod, and an arc-shaped groove is provided on the housing for sliding with the limiting rod two.
[0008] Preferably, the fixing block has two sets of mounting slots symmetrically provided, and each set of mounting slots is provided with a fixing component. The fixing component includes a fixing rod fixedly connected to the inner wall of the mounting slot, a locking block for fixing the pressing part is slidably connected to the fixing rod, a lever is fixedly connected to the upper end of the locking block, and a spring is fixedly connected between the locking block and the inner wall of the mounting slot, and the spring is fitted onto the fixing rod.
[0009] Preferably, the pressing component includes two sets of sliding plates slidably connected to the fixed block. Each set of sliding plates has a slot for engaging with the locking block. Each set of sliding plates has a pressing plate fixedly connected to it. The lower ends of both sets of sliding plates are fixedly connected to the fixed plate. The lower side of the pressing plate has a storage groove on the fixed block, and a spring is fixedly connected between the pressing plate and the storage groove.
[0010] Preferably, the locking component includes two sets of slide rods slidably connected to both sides of the housing. An insert block is fixedly connected to one end of each set of slide rods facing each other. Openings for engaging the insert block are provided on both sides of the locking block. A pull ring is fixedly connected to the other end of the slide rod, and a spring sleeved on the slide rod is fixedly connected between the insert block and the housing.
[0011] Preferably, a limiting rod is fixedly connected to the insert block, and a sliding groove is provided on the housing for sliding with the limiting rod.
[0012] Compared with the prior art, this utility model proposes a cover-opening power-off interlock protection device, which has the following beneficial effects: 1. This utility model includes a starting component. When the lid is open, the control switch in the starting component for controlling the motor's on / off state is in the off state, meaning the motor is off. This facilitates workers adjusting the addition of raw materials or checking the state of the dough. After the lid is closed, pressing the pressing plate in the pressing component causes the pressing plate to drive the lower fixing plate downwards via the sliding plate. The fixing plate then drives the locking block and the driving block downwards together. During the downward movement of the locking block, the inclined surface at its lower end presses against the insert in the locking component. Under the action of the spring, the insert finally inserts into the opening of the locking block, thus fixing the positions of the locking block and the driving block. At this time, the driving block moves with the locking block. During the movement, the lower sides of the driving block press against the upper end of the crank rod, causing the lower ends of the crank rod to move closer together, and ultimately causing the two insulating seats on the lower side to come into contact with each other. The control switches, mounted on the two insulating bases respectively, come into contact, thus activating the control switches and putting the motor into operation. At this time, the locking block in the fixing component placed inside the mounting slot is inserted into the slot of the sliding plate under the action of spring one, thereby limiting and fixing the sliding plate, thus fixing the dough mixer body to the lid. This device, through the cooperation of the pressing component, fixing component, locking component and starting component, requires the user to close and lock the lid before starting the motor in order to start the equipment. When the lid and the dough mixer body are unlocked, the control switch in the starting component used to control the motor to start and stop is in the open state, and the motor is in the off state. The setting of stopping immediately when the lid is opened can immediately cut off the power and avoid accidents such as the machine continuing to run when the lid is open, which could cause the user's hands or tools to be caught. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the connection structure between the pressing component and the fixing assembly in this utility model; Figure 3 This is a schematic diagram of the structure of the locking block and the driving block in this utility model; Figure 4 This is a schematic diagram of the locking and actuating components in this utility model; Figure 5 This is a schematic diagram of the connection structure between the locking component and the housing in this utility model; Figure 6 This is a schematic diagram of the structure of the locking block and locking element in this utility model; Figure 7 This is a schematic diagram of the structure of the drive block and the starter in this utility model.
[0014] The numbers on the map are: 1. Dough mixer body; 2. Lid; 3. Motor; 4. Mounting bracket; 5. Fixing block; 501. Mounting slot; 502. Storage slot; 503. Fixing rod; 504. Locking block; 505. Toggle lever; 506. Spring 1; 6. Pressing component; 601. Sliding plate; 602. Locking groove; 603. Pressing plate; 604. Spring 2; 7. Fixing bracket; 8. Housing; 801. Slide groove; 802. Arc groove; 9. Locking component; 901. 902. Slide rod; 903. Pull ring; 904. Insert block; 905. Spring three; 906. Limiting rod one; 10. Starting component; 1007. Rotating shaft one; 1008. Crank rod; 1009. Limiting rod two; 10000. Rotating shaft two; 10000. Rotating seat; 1001. Spring four; 1002. Insulating seat; 1003. Control switch; 1004. Spring five; 11. Fixing plate; 1101. Locking block; 1102. Driving block. Detailed Implementation
[0015] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.
[0016] Reference Figure 1-7 As shown, a power-off interlock protection device for opening the lid includes a dough mixer body 1 and a cover 2 rotatably mounted on the dough mixer body 1. A motor 3 for dough mixing is fixedly mounted on the left end of the dough mixer body 1. A mounting bracket 4 is fixedly connected to the cover 2, and a fixing block 5 is fixedly connected to the mounting bracket 4. A fixing plate 11 is provided on the lower side of the fixing block 5. A locking block 1101 and a driving block 1102 are fixedly connected to the fixing plate 11. A pressing member 6 for driving the fixing plate 11 to rise and fall is provided on the fixing block 5. A fixing component for fixing the pressing member 6 is provided inside the fixing block 5. A fixing frame 7 is fixedly connected to the dough mixer body 1, and a housing 8 is fixedly connected to the fixing frame 7. A locking member 9 and a starting member 10 are provided inside the housing 8. The starting member 10 is used to cooperate with the driving block 1102 to switch the motor 3 on and off. Furthermore, through the cooperation of the pressing component 6, the fixing component, the locking component 9, and the starting component 10, this device requires the user to close and lock the lid 2 before starting the motor 3. When the lid 2 is unlocked from the body 1 of the dough mixer, the control switch 1008 in the starting component 10, which controls the opening and closing of the motor 3, is in the off state. At this time, the motor 3 is in the off state. By setting the machine to stop immediately when the lid is opened, the power can be cut off immediately, avoiding accidents such as the machine continuing to run when the lid is open, which could cause the user's hand or tools to be caught in the machine.
[0017] Specifically, in this embodiment, the starting component 10 includes two sets of rotating shafts 1001 fixedly connected to the housing 8. A crank 1002 is rotatably mounted on each of the two sets of rotating shafts 1001, and the cranks 1002 are symmetrically arranged. An insulating seat 1007 is rotatably mounted on the lower end of the crank 1002. A control switch 1008 for controlling the start and stop of the motor 3 is fixedly mounted on the insulating seat 1007, and a spring 1009 is fixedly connected between the insulating seat 1007 and the crank 1002.
[0018] Furthermore: When the cover is open, the control switch 1008 in the starter 10 used to control the opening and closing of the motor 3 is in the off state, and the motor 3 is in the off state. After the cover is closed, by pressing the pressing plate 603 in the pressing member 6, the pressing plate 603 drives the lower fixing plate 11 to move down through the sliding plate 601. The fixing plate 11 then drives the locking block 1101 and the driving block 1102 to move down together. During the movement, the lower ends of the driving block 1102 will squeeze the upper ends of the crank 1002, so that the lower ends of the crank 1002 are close to each other, and finally the two insulating seats 1007 on the lower side are close to each other until the control switches 1008 installed on the two insulating seats 1007 respectively come into contact, so that the control switches 1008 enter the connected state, and the motor 3 enters the working state.
[0019] Preferably, a rotating shaft 1004 is fixedly connected to the housing 8 on one side of the crank 1002. A rotating seat 1005 is rotatably mounted on the rotating shaft 1004. A spring 1006 is fixedly connected between the rotating seat 1005 and the crank 1002. The functions of the spring 1009 and the spring 1006 are similar, both used for resetting. When the cover is opened, the drive block 1102 will reset and move upward, thereby disengaging from the starting member 10. After the drive block 1102 disengages, the crank 1002 will reset under the action of the spring 1006, causing the two insulating seats 1007 on the lower side to disengage. Under the action of the spring 1009, the insulating seats 1007 will adhere to the surface of the crank 1002 for subsequent reconnection.
[0020] Specifically, in this embodiment, a limiting rod 1003 is fixedly connected to the crank rod 1002, and an arc-shaped groove 802 is provided on the housing 8 for sliding with the limiting rod 1003.
[0021] Specifically, in this embodiment, two sets of mounting slots 501 are symmetrically provided on the fixing block 5, and a fixing component is provided inside the two sets of mounting slots 501. The fixing component includes a fixing rod 503 fixedly connected to the inner wall of the mounting slot 501. A locking block 504 for fixing the pressing member 6 is slidably connected to the fixing rod 503. A lever 505 is fixedly connected to the upper end of the locking block 504. A spring 506 is fixedly connected between the locking block 504 and the inner wall of the mounting slot 501, and the spring 506 is sleeved on the fixing rod 503.
[0022] Specifically, in this embodiment, the pressing member 6 includes two sets of sliding plates 601 slidably connected to the fixed block 5. Each set of sliding plates 601 has a slot 602 for engaging with the locking block 504. Each set of sliding plates 601 is fixedly connected to a pressing plate 603. The lower ends of each set of sliding plates 601 are fixedly connected to the fixed plate 11. The lower side of the pressing plate 603 is provided with a storage groove 502 opened on the fixed block 5, and a spring 604 is fixedly connected between the pressing plate 603 and the storage groove 502.
[0023] Furthermore: After the lid is closed, by pressing the pressing plate 603 in the pressing member 6, the pressing plate 603 drives the lower fixing plate 11 to move down through the sliding plate 601. The fixing plate 11 then drives the locking block 1101 and the driving block 1102 to move down together. When the locking block 1101 is fixed with the locking member 9, the driving block 1102 causes the control switch 1008 in the starting member to enter the connected state, so that the motor 3 enters the working state. At this time, the locking block 504 in the fixing component placed inside the mounting slot 501 is inserted into the slot 602 of the sliding plate 601 under the action of the spring 506, thereby limiting and fixing the sliding plate 601, thus fixing the dough mixer body 1 and the box lid 2.
[0024] Specifically, in this embodiment, the locking member 9 includes two sets of sliding rods 901 that are slidably connected to both sides of the housing 8. One end of each set of sliding rods 901 is fixedly connected to an insert block 903. Both sides of the locking block 1101 are provided with openings for engaging the insert block 903. The other end of the sliding rod 901 is fixedly connected to a pull ring 902. A spring 904 sleeved on the sliding rod 901 is fixedly connected between the insert block 903 and the housing 8. A limit rod 905 is fixedly connected to the insert block 903. A groove 801 is provided on the housing 8 for engaging the limit rod 905.
[0025] Furthermore: After the cover is closed, pressing the pressing plate 603 in the pressing member 6 causes the pressing plate 603 to drive the lower fixing plate 11 to move down through the sliding plate 601. The fixing plate 11 then drives the locking block 1101 and the driving block 1102 to move down together. During the downward movement of the locking block 1101, the inclined surface at the lower end of the locking member 9 presses the insertion block 903 in the locking member 9. Under the action of the spring 904, the insertion block 903 is finally inserted into the opening of the locking block 1101, thereby fixing the position of the locking block 1101 and the driving block 1102 in the locking member 9.
[0026] The working principle of this utility model is as follows: When the cover is open, the control switch 1008 in the starting component 10, which controls the opening and closing of the motor 3, is in a state of separation from each other under the action of the five springs 1009 and the four springs 1006, that is, in a disconnected state. At this time, the motor 3 is in a closed state. After the cover is closed, by pressing the pressing plate 603 in the pressing component 6, the pressing plate 603 drives the lower fixing plate 11 to move down through the sliding plate 601. The fixing plate 11 then drives the locking block 1101 and the driving block 1102 to move down together. During the downward movement of the locking block 1101, the inclined surface at the lower end of the locking component 9 presses the insert block 903. Under the action of the three springs 904, the insert block 903 is finally inserted into the opening of the locking block 1101, thereby fixing the position of the locking block 1101 and the driving block 1102 in the locking component 9. During the movement of the drive block 1102, the lower ends of the drive block 1102 will press against the upper end of the crank 1002, thereby causing the lower ends of the crank 1002 to approach each other, and eventually causing the two insulating seats 1007 on the lower side to approach each other, until the control switches 1008 installed on the two insulating seats 1007 respectively come into contact, thereby causing the control switches 1008 to enter the connected state, and causing the motor 3 to enter the working state. Meanwhile, the locking block 504 in the fixing component placed inside the mounting slot 501 is inserted into the locking slot 602 of the sliding plate 601 under the action of the spring 506, thereby limiting and fixing the sliding plate 601, thus fixing the dough mixer body 1 and the box cover 2.
[0027] This device, through the cooperation of the pressing component 6, the fixing component, the locking component 9, and the starting component 10, requires the user to close and lock the lid 2 before starting the motor 3. When the lid 2 is unlocked from the body 1 of the dough mixer, the control switch 1008 in the starting component 10, which controls the opening and closing of the motor 3, is in the off state. At this time, the motor 3 is in the off state. By setting the machine to stop immediately when the lid is opened, the power can be cut off immediately, avoiding accidents such as the machine continuing to run when the lid is open, which could cause the user's hand or tools to be caught in the machine.
[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A cover-opening power-off interlock protection device, characterized in that, The machine includes a dough mixer body (1) and a cover (2) rotatably mounted on the dough mixer body (1). A motor (3) for dough mixing is fixedly mounted on the left end of the dough mixer body (1). A mounting bracket (4) is fixedly connected to the cover (2). A fixing block (5) is fixedly connected to the mounting bracket (4). A fixing plate (11) is provided on the lower side of the fixing block (5). A locking block (1101) and a driving block (1102) are fixedly connected to the fixing plate (11). A pressing component (6) for driving the fixing plate (11) to rise and fall is provided on the fixing block (5). A fixing component for fixing the pressing component (6) is provided inside the fixing block (5). A fixing frame (7) is fixedly connected to the dough mixer body (1). A fixing component (7) is fixedly connected to the fixing frame (7). There is a housing (8), and a locking part (9) and a starting part (10) are provided inside the housing (8). The starting part (10) is used to cooperate with the drive block (1102) to switch the motor (3). The starting part (10) includes two sets of rotating shafts (1001) fixedly connected to the housing (8). A crank (1002) is rotatably installed on each of the two sets of rotating shafts (1001), and the cranks (1002) are symmetrically arranged. An insulating seat (1007) is rotatably installed at the lower end of the crank (1002). A control switch (1008) for controlling the start and stop of the motor (3) is fixedly installed on the insulating seat (1007), and a spring (1009) is fixedly connected between the insulating seat (1007) and the crank (1002).
2. The cover-opening power-off interlock protection device according to claim 1, characterized in that: A rotating shaft two (1004) is fixedly connected to the housing (8) on one side of the crank (1002). A rotating seat (1005) is rotatably mounted on the rotating shaft two (1004). A spring four (1006) is fixedly connected between the rotating seat (1005) and the crank (1002).
3. The cover-opening power-off interlock protection device according to claim 1, characterized in that: The crank (1002) is fixedly connected to the second limiting rod (1003), and the housing (8) is provided with an arc groove (802) for sliding with the second limiting rod (1003).
4. The cover-opening power-off interlock protection device according to claim 1, characterized in that: Two sets of mounting slots (501) are symmetrically provided on the fixing block (5), and a fixing component is provided inside the two sets of mounting slots (501). The fixing component includes a fixing rod (503) fixedly connected to the inner wall of the mounting slot (501). A locking block (504) for fixing the pressing part (6) is slidably connected on the fixing rod (503). A lever (505) is fixedly connected to the upper end of the locking block (504). A spring (506) is fixedly connected between the locking block (504) and the inner wall of the mounting slot (501), and the spring (506) is sleeved on the fixing rod (503).
5. The cover-opening power-off interlock protection device according to claim 4, characterized in that: The pressing component (6) includes two sets of sliding plates (601) slidably connected to the fixed block (5). Each set of sliding plates (601) has a slot (602) for engaging with the locking block (504). Each set of sliding plates (601) has a pressing plate (603) fixedly connected to it. The lower ends of each set of sliding plates (601) are fixedly connected to the fixed plate (11). The lower side of the pressing plate (603) has a storage groove (502) opened on the fixed block (5), and a spring (604) is fixedly connected between the pressing plate (603) and the storage groove (502).
6. The cover-opening power-off interlock protection device according to claim 1, characterized in that: The locking component (9) includes two sets of slide rods (901) that are slidably connected to both sides of the housing (8). The two sets of slide rods (901) are fixedly connected to a plug (903) at one end facing each other. The locking block (1101) has openings on both sides for engaging the plug (903). The other end of the slide rod (901) is fixedly connected to a pull ring (902). A spring (904) sleeved on the slide rod (901) is fixedly connected between the plug (903) and the housing (8).
7. The cover-opening power-off interlock protection device according to claim 6, characterized in that: The insert (903) is fixedly connected to a limiting rod (905), and the housing (8) is provided with a sliding groove (801) for sliding with the limiting rod (905).