Centrifugal juicer with safety start function

Abstract

The utility model relates to centrifugal juicer technical field especially relates to a centrifugal juicer with safe starting function, including base, juice collecting disc and upper cover, the lower extreme of juice collecting disc is connected with the base rotation buckle through first rotation buckle structure, the upper extreme of juice collecting disc is connected with the upper cover rotation buckle through second rotation buckle structure, is provided with the sliding cavity that extends along the vertical on juice collecting disc, the upper extreme of sliding cavity is equipped with the lower pressure mouth, the lower extreme is equipped with transmission mouth, the sliding cavity is connected with the safety touch lever along the vertical sliding, the upper extreme of safety touch lever is located at the lower pressure mouth, the lower extreme is located at transmission mouth, the side of upper cover to juice collecting disc is provided with safety pressure piece, when the upper cover installs through second rotation buckle structure, safety pressure piece enters sliding cavity from the lower pressure mouth and presses down the upper extreme of safety touch lever, safety touch lever slides down along sliding cavity, the lower extreme of safety touch lever passes transmission mouth and triggers safety switch. The structure design above, has reduced the operation difficulty greatly, reduced abrasion, improved the security.

Description

Technical Field

[0001] This utility model relates to the field of centrifugal juicer technology, and in particular to a centrifugal juicer with a safe start function. Background Technology

[0002] Centrifugal juicers work by using high-speed rotating blades to chop fruit. The juice flows out through fine holes under centrifugal force, while the pulp is thrown into a pulp collector. Traditional centrifugal juicers typically use a mechanical latch mechanism as a safety switch to ensure operational safety. Users must precisely fasten the top cover so that the latch is fully engaged in the preset slot to trigger the internal safety switch, thus activating the circuit and starting the motor. However, traditional centrifugal juicers require precise alignment; even slight deviations can prevent the safety mechanism from triggering, easily leading to starting failure or operational errors. Furthermore, frequent fastening can cause wear on the latch and slot, potentially leading to locking failure or loosening, threatening safety. Therefore, it is necessary to improve existing technology to solve these problems. Utility Model Content

[0003] The purpose of this invention is to provide a centrifugal juicer with a safe start function, which aims to solve the problems of low operational error tolerance and high mechanical wear risk caused by the use of mechanical levers to trigger safety switches in existing centrifugal juicers.

[0004] To achieve the above objectives, this utility model provides a centrifugal juicer with a safe start function, including a base, a juice collection tray, and a top cover. The lower end of the juice collection tray is rotatably fastened to the base via a first snap-fit ​​structure, and the upper end of the juice collection tray is rotatably fastened to the top cover via a second snap-fit ​​structure. A blade mesh mechanism is provided on the top of the base, located inside the juice collection tray. The base is equipped with a drive mechanism and a safety switch. The drive mechanism is drively connected to the blade mesh mechanism, and the safety switch is electrically connected to the drive mechanism. A vertically extending sliding cavity is provided on the juice collection tray. A pressing port is opened at the upper end of the sliding cavity, and a transmission port is opened at the lower end. A safety contact rod is slidably connected vertically inside the sliding cavity. The upper end of the safety contact rod is located at the pressing port, and the lower end is located at the transmission port. A safety pressure block is provided on the side of the top cover facing the juice collection tray. When the top cover is installed via the second snap-fit ​​structure, the safety pressure block enters the sliding cavity from the pressing port and presses down the upper end of the safety contact rod. The safety contact rod slides downward along the sliding cavity, and the lower end of the safety contact rod passes through the transmission port and triggers the safety switch.

[0005] Furthermore, the first screw fastening structure includes first screw fastening protrusions spaced circumferentially along the inner circumferential wall of the lower end of the juice collection tray and first screw fastening slots spaced circumferentially along the top end of the machine base. The first screw fastening protrusions are adapted to the first screw fastening slots, and the first screw fastening protrusions are engaged into the corresponding first screw fastening slots by rotating circumferentially.

[0006] Furthermore, a first guide slope is provided at the entrance of the first snap-lock slot.

[0007] Furthermore, a first positioning protrusion is provided in the first buckle slot, and the first buckle protrusion is provided with a first positioning groove that fits into the first positioning protrusion.

[0008] Furthermore, the second snap fastener structure includes second snap fastener protrusions spaced circumferentially along the outer peripheral wall of the lower end of the upper cover and second snap fastener slots spaced circumferentially along the inner peripheral wall of the upper end of the juice collection tray. The second snap fastener protrusions are adapted to the second snap fastener slots, and the second snap fastener protrusions are inserted into the corresponding second snap fastener slots by rotating circumferentially.

[0009] Furthermore, a second guide slope is provided at the entrance of the second snap-lock slot.

[0010] Furthermore, a second positioning protrusion is provided in the second buckle slot, and the second buckle protrusion is provided with a second positioning groove that fits into the second positioning protrusion.

[0011] Furthermore, the safety contact rod is provided with a sliding through hole, and the sliding cavity is provided with a limiting protrusion extending into the sliding through hole. An elastic reset member is provided between the safety contact rod and the limiting protrusion, and the elastic reset member can make the safety contact rod tend to move upward.

[0012] Furthermore, the safety pressure block is provided with a downward pressing slope and a third positioning protrusion, and the safety contact rod is provided with a mating slope that cooperates with the downward pressing slope and a third positioning groove that fits into the third positioning protrusion.

[0013] Furthermore, a trigger hole is provided on the top surface of the base, and the safety switch is located inside the base. The lower end of the safety contact rod passes through the transmission port and extends into the base through the trigger hole to trigger the safety switch.

[0014] This invention provides a centrifugal juicer with a safe start function. Compared to existing technologies, the upper and lower ends of the juice collection tray are connected to the base and the top cover via a first and a second screw-on structure, respectively. During installation or disassembly, the user only needs to rotate the tray, greatly reducing operational difficulty. Simultaneously, when the top cover is installed via the second screw-on structure, the safety block moves synchronously with the top cover and presses down on the safety contact rod until the lower end of the safety contact rod passes through the transmission port and effectively contacts the safety switch, triggering the safety switch. Only then can the blade mesh mechanism start working. This effectively avoids the possibility of incomplete engagement leading to accidental start-up and wear caused by clamping, which may exist in traditional latch structures. It not only reduces mechanical wear and extends component life but also improves safety. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0016] Figure 2 yes Figure 1 Sectional view at point aa;

[0017] Figure 3 yes Figure 2 A magnified structural diagram of part A in the middle;

[0018] Figure 4 This is a side view of the present invention with some components concealed;

[0019] Figure 5 yes Figure 4 A magnified structural diagram of part B in the middle section;

[0020] Figure 6 This is an exploded view of the present invention;

[0021] Figure 7 yes Figure 6 A magnified structural diagram of section C;

[0022] Figure 8 This is a schematic diagram of the three-dimensional structure of the juice collection tray. Figure 1 ;

[0023] Figure 9 This is a schematic diagram of the three-dimensional structure of the juice collection tray. Figure 2 ;

[0024] Figure 10 This is a three-dimensional structural diagram of the base.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Base; 11. Trigger hole; 12. First screw-on slot; 121. First guide slope; 122. First positioning protrusion; 2. Juice collection tray; 21. Sliding cavity; 211. Limiting protrusion; 22. Pressing port; 23. Transmission port; 24. Safety contact rod; 241. Sliding through hole; 242. Mating slope; 243. Third positioning groove; 25. First screw-on protrusion; 251. First positioning groove; 26. Second screw-on slot; 261. Second guide slope; 262. Second positioning protrusion; 3. Top cover; 31. Safety pressure block; 311. Pressing slope; 312. Third positioning protrusion; 32. Second screw-on protrusion; 321. Second positioning groove; 4. Blade mesh mechanism. Detailed Implementation

[0027] The present invention will be described in detail below with reference to specific embodiments.

[0028] In this utility model, unless otherwise explicitly specified and limited, when terms such as "set in," "connected," or "linked" appear, these terms should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or a connection through one or more intermediate media. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. The directional terms appearing in this utility model are for the purpose of better describing the characteristics of the features and the relationships between them. It should be understood that when the placement direction of this utility model changes, the direction of the characteristics of the features and the relationships between them also changes accordingly. Therefore, directional terms do not constitute an absolute limitation on the characteristics of the features and the relationships between them in space, but only a relative limitation.

[0029] This utility model provides a centrifugal juicer with a safe start function, such as... Figures 1 to 10 As shown, it includes a base 1, a juice collection tray 2, and a top cover 3. The lower end of the juice collection tray 2 is rotatably fastened to the base 1 via a first snap-fit ​​structure, and the upper end of the juice collection tray 2 is rotatably fastened to the top cover 3 via a second snap-fit ​​structure. A blade mesh mechanism 4 is provided on the top of the base 1, located inside the juice collection tray 2. The base 1 is equipped with a drive mechanism (not shown in the figure) and a safety switch (not shown in the figure). The drive mechanism is drively connected to the blade mesh mechanism 4, and the safety switch is electrically connected to the drive mechanism. A sliding cavity 21 extending vertically is provided on the juice collection tray 2. The upper end has a pressing port 22 and the lower end has a transmission port 23. A safety contact rod 24 is vertically connected inside the sliding cavity 21. The upper end of the safety contact rod 24 is located at the pressing port 22 and the lower end is located at the transmission port 23. A safety pressure block 31 is provided on the side of the upper cover 3 facing the juice collection plate 2. When the upper cover 3 is installed through the second screw fastener structure, the safety pressure block 31 enters the sliding cavity 21 from the pressing port 22 and presses down the upper end of the safety contact rod 24. The safety contact rod 24 slides down along the sliding cavity 21. The lower end of the safety contact rod 24 passes through the transmission port 23 and triggers the safety switch.

[0030] Based on the above structural design, the upper and lower ends of the juice collection tray 2 are connected to the base 1 and the upper cover 3 respectively through the first and second screw fastening structures. During installation or disassembly, the user only needs to rotate the tray, which greatly reduces the difficulty of operation. At the same time, when the upper cover 3 is installed through the second screw fastening structure, the safety pressure block 31 moves synchronously with the upper cover 3 and presses down the safety contact rod 24 until the lower end of the safety contact rod 24 passes through the transmission port 23 and forms effective contact with the safety switch, triggering the safety switch. Only then can the blade mesh mechanism 4 start working. This effectively avoids the accidental start caused by incomplete fastening and wear caused by fastening that may exist in the traditional buckle structure. It not only reduces mechanical wear and extends the service life of components, but also improves safety.

[0031] In this embodiment, the first snap-fit ​​structure includes first snap-fit ​​protrusions 25 spaced circumferentially along the inner circumferential wall of the lower end of the juice collection tray 2 and first snap-fit ​​grooves 12 spaced circumferentially along the top end of the base 1. The first snap-fit ​​protrusions 25 are adapted to the first snap-fit ​​grooves 12, and the first snap-fit ​​protrusions 25 are snapped into the corresponding first snap-fit ​​grooves 12 by rotating circumferentially. When installing the juice collection tray 2, the user only needs to place the juice collection tray 2 on the base 1, and then rotate the juice collection tray 2 circumferentially to make the first snap-fit ​​protrusions 25 snap into the corresponding first snap-fit ​​grooves 12, thus completing the connection between the juice collection tray 2 and the base 1. The operation is simple and quick. When disassembling the juice collection tray 2, the user only needs to rotate the juice collection tray 2 in the opposite direction to make the first snap-fit ​​protrusions 25 disengage from the first snap-fit ​​grooves 12, thus easily removing the juice collection tray 2. The disassembly process is quick and effortless.

[0032] In this embodiment, a first guide slope 121 is provided at the entrance of the first snap-fit ​​groove 12. The first guide slope 121 provides a good guiding effect for the screwing in of the first snap-fit ​​protrusion 25. The first snap-fit ​​protrusion 25 can smoothly enter the first snap-fit ​​groove 12 along the first guide slope 121, which greatly improves the assembly efficiency.

[0033] In this embodiment, a first positioning protrusion 122 is provided in the first snap-lock groove 12, and a first positioning groove 251 is provided in the first snap-lock protrusion 25 to fit with the first positioning protrusion 122. Through the above structural design, a stable connection between the juice collection tray 2 and the base 1 is achieved. When the first positioning protrusion 122 is inserted into the first positioning groove 251, it will give the operator obvious feedback, indicating that the assembly is in place, and reducing the uncertainty in the assembly process.

[0034] In this embodiment, the second snap-fit ​​structure includes second snap-fit ​​protrusions 32 spaced circumferentially along the outer peripheral wall of the lower end of the upper cover 3 and second snap-fit ​​grooves 26 spaced circumferentially along the inner peripheral wall of the upper end of the juice collection tray 2. The second snap-fit ​​protrusions 32 are adapted to the second snap-fit ​​grooves 26, and the second snap-fit ​​protrusions 32 are inserted into the corresponding second snap-fit ​​grooves 26 by rotating circumferentially. When installing the upper cover 3, the user only needs to place the upper cover 3 on the juice collection tray 2, and then rotate the juice collection tray 2 circumferentially to make the second snap-fit ​​protrusions 32 insert into the corresponding second snap-fit ​​grooves 26, thus completing the connection between the juice collection tray 2 and the base 1, which greatly improves the installation efficiency. When removing the upper cover 3, the user only needs to rotate the upper cover 3 in the opposite direction to make the second snap-fit ​​protrusions 32 disengage from the second snap-fit ​​grooves 26, thus easily removing the upper cover 3, saving disassembly time and effort.

[0035] In this embodiment, a second guide slope 261 is provided at the entrance of the second snap-fit ​​slot 26. The second guide slope 261 provides a good guiding effect for the screwing in of the second snap-fit ​​protrusion 32. The second snap-fit ​​protrusion 32 can smoothly enter the second snap-fit ​​slot 26 along the second guide slope 261, making the entire screwing process more efficient and significantly shortening the operation time.

[0036] In this embodiment, a second positioning protrusion 262 is provided in the second snap fastener slot 26, and a second positioning groove 321 is provided in the second snap fastener protrusion 262 to fit into the second positioning protrusion 262. Through the above structural design, a stable connection between the juice collection tray 2 and the upper cover 3 is achieved. When the second positioning protrusion 262 is embedded in the second positioning groove 321, a clear mechanical feedback is generated, allowing the operator to clearly know that the rotation operation has been accurately completed.

[0037] In this embodiment, the safety contact rod 24 is provided with a sliding through hole 241, and the sliding cavity 21 is provided with a limiting protrusion 211 extending into the sliding through hole 241. An elastic reset member (not shown in the figure) is provided between the safety contact rod 24 and the limiting protrusion 211. The elastic reset member enables the safety contact rod 24 to tend to move upward. The elastic reset member provides an automatic reset function for the safety contact rod 24. When the top cover 3 is removed, the elastic reset member ensures that the safety contact rod 24 returns to its initial untriggered state by its own elasticity, effectively avoiding various dangers that may be caused by the continuous pressing of the safety switch by the safety contact rod 24, and keeping the equipment in a safe and reliable state at all times.

[0038] In this embodiment, the safety block 31 is provided with a downward pressing slope 311 and a third positioning protrusion 312, and the safety contact rod 24 is provided with a mating slope 242 that cooperates with the downward pressing slope 311 and a third positioning groove 243 that fits into the third positioning protrusion 312. The interaction between the downward pressing slope 311 and the mating slope 242 provides precise guidance for the movement of the safety contact rod 24.

[0039] After the third positioning protrusion 312 is embedded in the third positioning groove 243, it can prevent the safety pressure block 31 and the safety contact rod 24 from being relatively displaced or separated due to vibration or other factors during equipment operation, thus avoiding the failure of safety functions due to loose connection.

[0040] In this embodiment, a trigger hole 11 is provided on the top surface of the base 1, and the safety switch is located inside the base 1. The lower end of the safety contact rod 24 passes through the transmission port 23 and extends into the base 1 through the trigger hole 11 to trigger the safety switch. The above arrangement can avoid the safety hazards caused by accidental activation of the exposed safety switch.

[0041] In summary, this centrifugal juicer with a safety start function can solve the problems of low operational error tolerance and high mechanical wear risk caused by the use of mechanical levers to trigger safety switches in existing centrifugal juicers.

[0042] Where there is no conflict, the above embodiments and features can be combined with each other.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A centrifugal juicer with a safe start function, comprising a base (1), a juice collection tray (2), and a top cover (3), characterized in that: The lower end of the juice collection tray (2) is rotatably fastened to the base (1) via a first snap fastener structure, and the upper end of the juice collection tray (2) is rotatably fastened to the top cover (3) via a second snap fastener structure. A blade mesh mechanism (4) is provided on the top of the base (1), and the blade mesh mechanism (4) is located inside the juice collection tray (2). The base (1) is provided with a drive mechanism and a safety switch. The drive mechanism is connected to the blade mesh mechanism (4) via transmission, and the safety switch is connected to the drive mechanism via electrical connection. A sliding cavity (21) extending vertically is provided on the juice collection tray (2). A pressing port (22) is opened at the upper end of the sliding cavity (21), and a transmission port (22) is opened at the lower end. 23) A safety contact rod (24) is vertically connected inside the sliding cavity (21). The upper end of the safety contact rod (24) is located at the lower pressure port (22), and the lower end is located at the transmission port (23). A safety pressure block (31) is provided on the side of the upper cover (3) facing the juice collection plate (2). When the upper cover (3) is installed through the second screw fastener structure, the safety pressure block (31) enters the sliding cavity (21) from the lower pressure port (22) and presses down the upper end of the safety contact rod (24). The safety contact rod (24) slides down along the sliding cavity (21). The lower end of the safety contact rod (24) passes through the transmission port (23) and triggers the safety switch.

2. The centrifugal juicer with a safe start function according to claim 1, characterized in that: The first screw fastening structure includes first screw fastening protrusions (25) spaced circumferentially along the inner circumferential wall of the lower end of the juice collection tray (2) and first screw fastening slots (12) spaced circumferentially along the top end of the base (1). The first screw fastening protrusions (25) are adapted to the first screw fastening slots (12), and the first screw fastening protrusions (25) are inserted into the corresponding first screw fastening slots (12) by rotating circumferentially.

3. The centrifugal juicer with a safe start function according to claim 2, characterized in that: A first guide slope (121) is provided at the entrance of the first swivel slot (12).

4. The centrifugal juicer with a safe start function according to claim 3, characterized in that: The first snap fastener slot (12) is provided with a first positioning protrusion (122), and the first snap fastener protrusion (25) is provided with a first positioning groove (251) that fits with the first positioning protrusion (122).

5. The centrifugal juicer with a safe start function according to claim 1, characterized in that: The second snap fastening structure includes second snap fastening protrusions (32) spaced apart circumferentially along the outer peripheral wall of the lower end of the upper cover (3) and second snap fastening slots (26) spaced apart circumferentially along the inner peripheral wall of the upper end of the juice collection tray (2). The second snap fastening protrusions (32) are adapted to the second snap fastening slots (26), and the second snap fastening protrusions (32) are inserted into the corresponding second snap fastening slots (26) by rotating circumferentially.

6. The centrifugal juicer with a safe start function according to claim 5, characterized in that: A second guide slope (261) is provided at the entrance of the second snap-lock slot (26).

7. The centrifugal juicer with a safe start function according to claim 6, characterized in that: The second buckle slot (26) is provided with a second positioning protrusion (262), and the second buckle protrusion (32) is provided with a second positioning groove (321) that fits with the second positioning protrusion (262).

8. The centrifugal juicer with a safe start function according to claim 1, characterized in that: The safety contact rod (24) is provided with a sliding through hole (241), and the sliding cavity (21) is provided with a limiting protrusion (211) extending into the sliding through hole (241). An elastic reset member is provided between the safety contact rod (24) and the limiting protrusion (211), and the elastic reset member can make the safety contact rod (24) tend to move upward.

9. The centrifugal juicer with a safe start function according to claim 8, characterized in that: The safety block (31) is provided with a downward pressing slope (311) and a third positioning protrusion (312), and the safety contact rod (24) is provided with a mating slope (242) that mates with the downward pressing slope (311) and a third positioning groove (243) that mates with the third positioning protrusion (312).

10. The centrifugal juicer with a safe start function according to claim 1, characterized in that: The top surface of the base (1) is provided with a trigger hole (11), and the safety switch is located inside the base (1). The lower end of the safety contact rod (24) passes through the transmission port (23) and extends into the base (1) from the trigger hole (11) to trigger the safety switch.

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