Lifting mechanism and juicer

Abstract

According to the technical scheme, the lifting mechanism comprises a driving piece, a driving gear, a driven gear and a lead screw, and the driving piece is in driving connection with the driving gear; the driven gear is meshed with the driving gear and comprises a first driven wheel, the center of the first driven wheel is provided with a limiting groove penetrating in the axis direction of the first driven wheel, the limiting groove comprises a first groove body and a second groove body which are communicated, and the second groove body extends in the radial direction of the first driven wheel; the lead screw is provided with a first end and a second end which are opposite, the lead screw penetrates through the first groove body, the first end is provided with a limiting piece, and at least part of the limiting piece is arranged in the second groove body. According to the technical scheme, the limiting piece on the lead screw is at least partially connected with the second groove in the first driven wheel in the abutting mode, the lead screw is driven by the first driven wheel to rotate, and meanwhile the problem that the juicer is difficult to assemble due to the axial tolerance of the lead screw is solved.

Description

Technical Field

[0001] The utility model relates to the field of household appliances, in particular to a lifting mechanism and a juicer. Background Art

[0002] As people's living standards improve, more and more families choose to use juicers to make their own fruit and vegetable juice. Juicers include whipping type and squeezing type. Compared with whipping type juicers, squeezing type juicers produce less residue and better drinking taste, so they are becoming more and more popular among users.

[0003] In the related art, a squeeze-type juicer typically includes a pressure-bearing member for placing fruits and vegetables and a pressing head for squeezing the fruits and vegetables. One of the pressure-bearing member and the pressing head is raised and lowered by a screw-type lifting mechanism. The screw-type lifting mechanism includes a motor, a gear, and a screw. The screw extends through the axis of the gear, and the gear and screw are directly fixed together. Due to the long length of the screw and the large axial tolerance of the screw, the structure of the juicer frame is relatively fixed. The height of the gear mounted on the frame is affected by the screw tolerance, resulting in an uncertain height position of the gear, making it impossible to install the gear on the frame, which makes it difficult to assemble the juicer. Utility Model Content

[0004] The main purpose of the utility model is to provide a lifting mechanism, aiming to solve the problem of difficulty in assembling a juicer.

[0005] The technical solution of the utility model proposes a lifting mechanism, comprising:

[0006] driving parts;

[0007] A driving gear, wherein the driving member is drivingly connected to the driving gear;

[0008] A driven gear meshing with the driving gear, the driven gear comprising a first driven wheel, the center of the first driven wheel having a limiting groove extending through the first driven wheel along its axis, the limiting groove comprising a first groove body and a second groove body connected to each other, the second groove body extending in the radial direction of the first driven wheel;

[0009] The screw rod has a first end and a second end opposite to each other. The screw rod is passed through the first slot body. The first end is provided with a limiting member, and the limiting member is at least partially arranged in the second slot body.

[0010] In one embodiment, two second slots are provided, and the two second slots are arranged opposite to each other.

[0011] In one embodiment, the first end is provided with a socket penetrating through the side wall of the screw rod, the limiting member is configured as a pin, the pin passes through the socket, and two end portions of the pin are provided in the two second slots.

[0012] In one embodiment, a groove sidewall of the limiting groove extends along the axial direction of the first driven wheel toward the second end, and protrudes from a side surface of the first driven wheel toward the second end.

[0013] In one embodiment, the lifting mechanism further includes a fastener, which is provided on a side of the first driven wheel away from the second end, and the fastener is provided on an outer periphery of the first end and connected to the first driven wheel.

[0014] In one embodiment, the driven gear further includes a second driven wheel, which is disposed between the driving gear and the first driven wheel and meshes with the driving gear and the first driven wheel.

[0015] The technical solution of the present utility model also proposes a juicer, which includes a frame, a rolling plate, a pressure-bearing member and the aforementioned lifting mechanism. The rolling plate, the pressure-bearing member and the lifting mechanism are installed on the frame. The pressure-bearing member is arranged below the rolling plate. The pressure-bearing member is used to place the squeezed material. The screw rod is connected to the pressure-bearing member so that the pressure-bearing member can approach or move away from the rolling plate.

[0016] In one embodiment, the frame includes a first mounting plate and a second mounting plate respectively arranged at both ends of the screw rod, the first mounting plate is arranged above the second mounting plate, the pressure-bearing member and the rolling plate are arranged between the first mounting plate and the second mounting plate, and the driving member, the driving gear, the driven gear and the rolling plate are arranged on the first mounting plate, and the screw rod is movably connected to the pressure-bearing member to drive the pressure-bearing member to move up and down.

[0017] In one embodiment, the rolling disc is mounted on a side of the first mounting plate close to the second mounting plate, and the driving member, the driving gear, and the driven gear are arranged on the other side of the first mounting plate away from the second mounting plate.

[0018] In one embodiment, there are two driven gears and two screw rods respectively, and the two driven gears are arranged on opposite sides of the driving gear. The two screw rods correspond to the two driven gears and are arranged on opposite sides of the pressure-bearing part, and are connected to the two first driven wheels one by one.

[0019] The technical solution of the present utility model is to realize that the first driven wheel drives the screw to rotate by at least partially abutting the limit piece on the screw with the second groove body on the first driven wheel. At the same time, the matching position of the limit piece and the second groove body in the height direction is adjusted to compensate for the axial length error of the screw, thereby solving the problem of difficult assembly of the juicer caused by the axial tolerance of the screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0021] Figure 1 This is a structural diagram of a juicer according to an embodiment of the present invention;

[0022] Figure 2 for Figure 1 Exploded view of the juicer;

[0023] Figure 3 for Figure 2 Exploded view of the assembly of the middle screw and the first driven wheel;

[0024] Figure 4 for Figure 2 Schematic diagram of the structure of the first driven wheel.

[0025] Description of Figure Numbers:

[0026] Label name Label name 10 Juicer 110 First mounting plate 100 frame 120 Second mounting plate 200 Rolling plate 130 guide shaft 300 pressure-bearing parts 421 First End 400 Lifting mechanism 422 Second end 410 Drive parts 423 jack 420 Screw 441 First tank 430 driving gear 442 Second tank 440 First driven wheel 460 Limiting parts 450 Second driven wheel 470 fastener

[0027] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0030] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0031] Please refer to Figure 3 and Figure 4 The present invention proposes a lifting mechanism 400 including a driving member 410, a driving gear 430, a driven gear and a screw rod 420. The driving member 410 drives and connects the driving gear 430; the driven gear is engaged with the driving gear 430, and the driven gear includes a first driven wheel 440. The center of the first driven wheel 440 has a limiting groove that passes through along its axial direction. The limiting groove includes a first groove body 441 and a second groove body 442 that are connected to each other. The second groove body 442 extends along the radial direction of the first driven wheel 440; the screw rod 420 has a first end 421 and a second end 422 that are opposite to each other. The screw rod 420 is arranged in the first groove body 441. The first end 421 is provided with a limiting member 460, and the limiting member 460 is at least partially arranged in the second groove body 442.

[0032] Specifically, the lifting mechanism 400 is used to lift the movable parts of the electrical device and ensure the stability and reliability of its operation. The lifting mechanism 400 can be applied to the squeeze-type juicer 10 and other electrical devices that need to achieve lifting or translation functions.

[0033] The driving member 410 can drive the driving gear 430 to rotate, and the driving gear 430 engages with the driven gear, thereby transmitting the driving force of the driving member 410 to the driven gear, and the driven gear then drives the screw rod 420 to rotate, and then the screw rod 420 can drive the component set on the screw rod 420 to move to realize the lifting of the component.

[0034] The screw rod 420, a key component of the lifting mechanism 400, has a first end 421 and a second end 422, with the first end 421 positioned adjacent to the first driven pulley 440. The sidewalls of the first groove 441 match the shape of the outer circumference of the screw rod 420, forming a generally cylindrical shape. The first end 421 of the screw rod 420 extends through the first groove 441 and is secured with a fastener 470, allowing the screw rod 420 to be removably connected to the gear.

[0035] In some related art designs, the lead screw is fixedly connected to the driven wheel, allowing the driven wheel to drive the lead screw. However, due to axial tolerances on the lead screw, the height position of the driven wheel is uncertain. Furthermore, the frame structure of the juicer is relatively fixed, and the position of the driving wheel mounted on the frame remains fixed. As a result, the driven wheel cannot mesh with the driving wheel, or the meshing is incomplete, making it difficult to assemble the lifting mechanism and, in turn, the juicer.

[0036] In the lifting mechanism 400 proposed in the present invention, the rotation of the screw rod 420 is achieved by the abutment of the limit member 460 and the second groove body 442. The matching position of the limit member 460 and the second groove body 442 in the height direction is affected by the axial length error of the screw rod 420. By flexibly adjusting the matching position of the limit member 460 and the second groove body 442 in the height direction, the axial length error of the screw rod 420 can be compensated, so that the first driven wheel 440 can be installed on the frame and fully meshed with the driving gear 430, and can also drive the screw rod 420 to rotate through the limit member 460, thereby eliminating the problem of difficulty in assembling the juicer 10 caused by the axial tolerance of the screw rod 420.

[0037] It is understood that, ideally, the screw rod 420 has no axial tolerance, and the stopper 460 is completely located within the second groove 442. When the axial tolerance of the screw rod 420 is positive, i.e., the screw rod 420 is relatively long, the stopper 460 is partially located within the second groove 442 and partially exposed on the upper surface of the first driven wheel 440. In this case, the height-coordinated position of the stopper 460 and the second groove 442 is closer to the first end 421 of the screw rod 420 than in the ideal state. When the axial tolerance of the screw rod 420 is negative, i.e., the screw rod 420 is relatively short, the stopper 460 is partially located within the second groove 442 and partially exposed on the lower surface of the first driven wheel 440. In this case, the height-coordinated position of the stopper 460 and the second groove 442 is closer to the second end 422 of the screw rod 420 than in the ideal state.

[0038] In addition, the position adjustment of the limiter 460 in the second slot 442 only occurs during the assembly stage; during normal operation of the entire machine, the position of the limiter 460 in the height direction in the second slot 442 will not move or change, thereby ensuring that the torque can be stably transmitted.

[0039] A stopper 460 is provided at the first end 421. The stopper 460 may be fixedly connected to the screw rod 420 or detachably connected thereto. The stopper 460 is at least partially disposed within the second groove 442. When the first driven wheel 440 rotates, the stopper 460 abuts against the sidewalls of the second groove 442 and is pushed by the sidewalls of the second groove 442, thereby driving the screw rod 420 to rotate. The limiting member 460 is at least partially disposed in the second groove body 442. When the screw rod 420 is longer, part of the limiting member 460 is exposed from the upper surface of the first driven wheel 440, and the other part is disposed in the second groove body 442 and abuts against the groove side wall of the second groove body 442; when the screw rod 420 is shorter, part of the limiting member 460 is exposed from the lower surface of the first driven wheel 440, and the other part is disposed in the second groove body 442 and abuts against the groove side wall of the second groove body 442.

[0040] The technical solution of the present invention is to realize that the first driven wheel 440 drives the screw rod 420 to rotate by at least partially abutting the limit member 460 on the screw rod 420 with the second groove body 442 on the first driven wheel 440, and at the same time, the axial length error of the screw rod 420 is compensated by adjusting the matching position of the limit member 460 and the second groove body 442 in the height direction, thereby solving the problem that the juicer 10 is difficult to assemble due to the axial tolerance of the screw rod 420.

[0041] In one embodiment, two second slots 442 are provided, and the two second slots 442 are disposed opposite to each other.

[0042] Please refer to Figure 4 The two second grooves 442 are arranged opposite each other, and two limiting members 460 can be provided correspondingly, with the two limiting members 460 being provided in a one-to-one correspondence with the two second grooves 442; or the limiting members 460 can extend radially along the first driven wheel 440, the screw rod 420 is connected to the middle portion of the limiting member 460, and the ends of the limiting member 460 are respectively located in the two second grooves 442. By providing two oppositely arranged second grooves 442, the balance of the screw rod 420 can be ensured, and the force applied to the first driven wheel 440 and the limiting member 460 during movement can be made more uniform and stable, thereby further improving the stability and motion control ability of the first driven wheel 440. At the same time, the reliability of the lifting mechanism 400 can be improved, ensuring the safety of the lifting operation.

[0043] In one embodiment, the first end 421 is provided with a socket 423 passing through the side wall of the screw rod 420 , and the limiting member 460 is configured as a pin, which passes through the socket 423 , and the two ends of the pin are provided in the two second grooves 442 .

[0044] Please refer to Figure 3The first end 421 of the screw rod 420 is provided with a socket 423 that passes through the side wall of the screw rod 420. The socket 423 facilitates the installation of the limiter 460. The limiter 460 is configured as a latch, which is inserted and removed from the socket 423. The screw rod 420 is detachably connected to the latch, which not only makes processing more convenient, but also facilitates the replacement of the latch or the screw rod 420, reducing production costs. By providing the latch through the socket 423 and respectively providing it in the two second grooves 442, the latch is more firmly and stably abutted against the second groove 442, avoiding loosening or falling off during movement. This ensures the safe operation of the lifting mechanism 400 and improves the reliability and durability of the overall structure.

[0045] In one embodiment, the sidewall of the limiting groove extends along the axial direction of the first driven wheel 440 toward the second end 422 and protrudes from a side surface of the first driven wheel 440 facing the second end 422 .

[0046] Please refer to Figure 4 , the sidewalls of the limiting groove are further optimized so that the height of the sidewalls of the limiting groove in the axial direction of the screw rod 420 is increased to ensure the effective cooperation between the limiting groove and the screw rod 420. At the same time, the design of the sidewalls of the limiting groove protruding from the side of the first driven wheel 440 toward the second end 422 can provide additional support and stability for the limiting member 460, avoiding the occurrence of offset or loss of control during movement. Furthermore, when the axial length of the screw rod 420 is shorter, since the sidewalls of the limiting groove protrude from the lower surface of the first driven wheel 440, the limiting member 460 can still abut against the sidewalls of the limiting groove to achieve a rotational connection between the screw rod 420 and the first driven wheel 440. In other embodiments, the sidewalls of the limiting groove can also protrude from the other side of the first driven wheel 440 away from the second end 422 of the gear to cope with the situation where the axial length of the screw rod 420 is longer.

[0047] In one embodiment, the lifting mechanism 400 further includes a fastener 470 . The fastener 470 is disposed on a side of the first driven wheel 440 away from the second end 422 . The fastener 470 is disposed on the outer periphery of the first end 421 and connected to the first driven wheel 440 .

[0048] Please refer to Figure 3, the fastener 470 can effectively fix and stabilize the screw rod 420 and the first driven wheel 440. By connecting the fastener 470 to the outer periphery of the first end 421 and arranging it on the side of the first driven wheel 440 away from the second end 422, it is possible to prevent the screw rod 420 from shaking or loosening during movement, thereby preventing the screw rod 420 from falling out of the center of the first driven wheel 440, thereby ensuring smooth and reliable operation of the lifting mechanism 400. The fastener 470 can be configured as a nut, or the screw rod 420 can be formed with a protrusion protruding from the outer peripheral wall of the first end 421, and the protrusion abuts the side of the first driven wheel 440 away from the second end 422.

[0049] In one embodiment, the driven gear further includes a second driven wheel 450 . The second driven wheel 450 is disposed between the driving gear 430 and the first driven wheel 440 and meshes with the driving gear 430 and the first driven wheel 440 .

[0050] Please refer to Figure 2 The driven gear includes a meshing first driven wheel 440 and a second driven wheel 450. The driving gear 430 drives the first driven wheel 440 through the second driven wheel 450 and transmits power to the screw rod 420, thereby driving and controlling the screw rod 420 and thus moving the components to be moved. The installation positions of the first driven wheel 440 and the second driven wheel 450 can be arranged according to the size of the electrical equipment (such as the juicer 10), so that the first driven wheel 440 and the second driven wheel 450 of the same specifications can be adapted to juicers 10 of different sizes, thereby reducing R&D costs and improving production efficiency. The specifications of the first driven wheel 440 and the second driven wheel 450 can be the same or different. When the diameter of the second driven wheel 450 is larger than that of the first driven wheel 440, the second driven wheel 450 accelerates the screw rod 420. When the diameter of the second driven wheel 450 is smaller than that of the first driven wheel 440, the second driven wheel 450 decelerates the screw rod 420. In addition, one or more first driven wheels 440 can be provided. When a single first driven wheel 440 is provided, a second driven wheel 450 transmits the power of the driving member 410 to the first driven wheel 440 and drives the rotation of the lead screw 420. When multiple first driven wheels 440 are provided, the multiple first driven wheels 440 are meshed with the second driven wheels 450, or one of the first driven wheels 440 is meshed with another first driven wheel 440, so that the second driven wheel 450 transmits the power of the driving member 410 to the multiple first driven wheels 440 and drives the rotation of the multiple lead screws 420. In other embodiments, the second driven gear includes the first driven wheel 440, which is directly meshed with the driving gear 430 and connected to the lead screw 420.

[0051] The present invention also provides a juicer 10, which includes a frame 100, a rolling plate 200, a pressure member 300 and a lifting mechanism 400. The specific structure of the lifting mechanism 400 refers to the above embodiment. Since the juicer 10 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described one by one here.

[0052] Among them, the rolling disc 200, the pressure-bearing part 300 and the lifting mechanism 400 are installed on the frame 100, the pressure-bearing part 300 is arranged below the rolling disc 200, the pressure-bearing part 300 is used to place the pressed material, and the screw rod 420 connects the pressure-bearing part 300 so that the pressure-bearing part 300 can be close to or away from the rolling disc 200.

[0053] Please refer to Figures 1 to 4 Specifically, the juicer 10 includes a frame 100, a rolling disc 200, a pressure member 300, and a lifting mechanism 400. The frame 100 is used to install and support the rolling disc 200, the pressure member 300, and the lifting mechanism 400, and plays the role of supporting and fixing each component to ensure the stability and reliability of the entire juicer 10. The rolling disc 200 is installed on the frame 100 and is used to squeeze the squeezed material to extract juice. The rolling disc 200 can be fixed on the frame 100 or can undergo oscillatory motion on the frame 100. The pressure member 300 is installed on the frame 100 and is located below the rolling disc 200, and is used to stably place the squeezed material, that is, the fruits and vegetables to be squeezed. The lifting mechanism 400 is mounted on the frame 100 and includes a driving member 410, a driving gear 430, a driven gear, and a screw 420. The screw 420 is connected to the pressure member 300 and controls the upward and downward movement of the pressure member 300, thereby adjusting the distance between the pressure member 300 and the rolling disc 200, thereby controlling the squeezing process of fruits and vegetables. A squeezing space is formed between the rolling disc 200 and the pressure member 300, and the squeezed material is confined within the squeezing space. It can be understood that when the lifting mechanism 400 drives the pressure member 300 upward, the pressure member 300 approaches the rolling disc 200. Under the pressure of the pressure member 300 and the rolling disc 200, the squeeze of the squeezed material is squeezed. When the juicing is complete, the lifting mechanism 400 drives the pressure member 300 downward, moving it away from the rolling disc 200 to facilitate the removal of residue and the placement of new squeezed material. There are two driving members 410 in the figure, one of which is used to drive the screw rod 420 to rotate, and the other is used to drive the rolling plate 200 to perform a yaw motion.

[0054] In one embodiment, the frame 100 includes a first mounting plate 110 and a second mounting plate 120 respectively arranged at both ends of the screw rod 420, the first mounting plate 110 is arranged above the second mounting plate 120, the pressure-bearing member 300 and the rolling plate 200 are arranged between the first mounting plate 110 and the second mounting plate 120, and the driving member 410, the driving gear 430, the driven gear and the rolling plate 200 are arranged on the first mounting plate 110, and the screw rod 420 is movably connected to the pressure-bearing member 300 to drive the pressure-bearing member 300 to move up and down.

[0055] Please refer to Figure 2 and Figure 3 The screw rod 420 is rotatably connected to the first mounting plate 110 and the second mounting plate 120 via bearings. The first mounting plate 110 and the second mounting plate 120 are located at both ends of the screw rod 420, forming an installation space. The pressure-bearing member 300 and the rolling plate 200 are disposed within the installation space. The pressure-bearing member 300 and the rolling plate 200 are disposed between the first mounting plate 110 and the second mounting plate 120, so that the distance and position between them can be effectively controlled and adjusted to accommodate the needs of juicing fruits and vegetables of different sizes. The screw rod 420 is connected to the pressure-bearing member 300, and the rolling plate 200 is mounted on the first mounting plate 110. The pressure-bearing member 300 can move up and down between the first mounting plate 110 and the second mounting plate 120. The driving member 410, the driving gear 430, and the driven gear are mounted on the first mounting plate 110. The first mounting plate 110 serves as an upper support, providing a suitable location for the mounting of the driving member 410, the driving gear 430, and the driven gear, thereby facilitating the driving and controlling of the pressure member 300. Furthermore, the structural design of the first mounting plate 110 and the second mounting plate 120 facilitates maintenance and repair, thereby increasing the reliability and service life of the juicer 10.

[0056] The frame 100 also includes a gasket sleeved around the outer circumference of the screw rod 420. The gasket and the first driven wheel 440 are mounted on the upper surface of the first mounting plate 110, and the gasket is located below the first driven wheel 440. The gasket serves to support and limit the first driven wheel 440. The arrangement of the gasket creates a gap between the first driven wheel 440 and the upper surface of the first mounting plate 110, thereby preventing interference between the first driven wheel 440 and the first mounting plate 110. At the same time, the gasket can also prevent the first driven wheel 440 from moving toward the second end 422 of the screw rod 420. On the other hand, a fastener 470 is provided on the upper surface of the first driven wheel 440, which can effectively prevent the first driven wheel 440 from moving toward the first end 421 of the screw rod 420, thereby effectively ensuring the smooth and reliable operation of the lifting mechanism 400.

[0057] The frame 100 also includes a plurality of guide shafts 130 extending vertically and having pressure-bearing members 300 extending therethrough, thereby enhancing the stability and load-bearing capacity of the frame 100. The provision of these guide shafts 130 makes the frame 100 more rigid, effectively supporting and securing the various components within the machine, and ensuring that the juicer 10 does not wobble or deform during operation.

[0058] The two ends of each guide shaft 130 are respectively connected to the first mounting plate 110 and the second mounting plate 120. Through this connection method, the guide shaft 130 can tightly fix the first mounting plate 110 and the second mounting plate 120 together to form an overall stable frame 100 structure. The vertical extension design of the guide shaft 130 enables the frame 100 to evenly distribute the load when subjected to external pressure and vibration, reducing deformation and damage to the machine, and improving the service life and stability of the juicer 10. Multiple guide shafts 130 are passed through the pressure-bearing member 300, which not only increases the support area of ​​the frame 100, but also effectively disperses and absorbs external impact forces. At the same time, the guide shaft 130 also provides a guide for the movement of the pressure-bearing member 300.

[0059] In addition, the rolling disc 200, the driving member 410, the driving gear 430 and the driven gear are all mounted on the first mounting plate 110, forming a tight module that can be pre-assembled on the same sub-assembly line. The remaining components such as the second mounting plate 120, the pressure-bearing member 300 and the screw rod 420 form another tight module and are assembled on another sub-assembly line. The two sub-assembly lines are assembled synchronously and then assembled together, which can improve production efficiency.

[0060] It is understandable that the two sub-assembly lines are assembled synchronously and then assembled together. In the related art, the two modules may not be assembled together due to the axial tolerance of the screw rod 420. However, the lifting mechanism 400 used in the juicer 10 proposed by the present invention is at least partially in contact with the second groove body 442 on the first driven wheel 440 through the limiter 460 on the screw rod 420. While the first driven wheel 440 drives the screw rod 420 to rotate, the matching position of the limiter 460 and the second groove body 442 in the height direction can be adjusted to compensate for the axial length error of the screw rod 420, so that the two modules can be assembled together, thereby solving the problem of the difficult assembly of the juicer 10 caused by the axial tolerance of the screw rod 420.

[0061] In one embodiment, the rolling disc 200 is installed on a side of the first mounting plate 110 close to the second mounting plate 120 , and the driving member 410 , the driving gear 430 , and the driven gear are disposed on another side of the first mounting plate 110 away from the second mounting plate 120 .

[0062] Please refer to Figure 2The driving member 410 is arranged on the side of the first mounting plate 110 away from the second mounting plate 120, which can provide sufficient power. The driving gear 430 and the driven gear are arranged on the side where the driving member 410 is located to facilitate the transmission of the power of the driving member 410 to the screw rod 420, so as to drive the screw rod 420 to rotate and thereby drive the pressure member 300 to move up and down. The rolling plate 200 is arranged on the other side of the first mounting plate 110 to ensure balance and stability during the juicing process, reduce vibration and unstable factors, and improve the working efficiency and stability of the juicer 10. By arranging the driving member 410, the driving gear 430, the driven gear and the rolling plate 200 on two opposite sides of the first mounting plate 110, the structural optimization and functional division of the juicer 10 are achieved, so that the juicer 10 can operate more efficiently during the juicing process and improve the juicing efficiency.

[0063] In one embodiment, two driven gears and two screw rods 420 are provided respectively, and the two driven gears are arranged on opposite sides of the driving gear 430. The two screw rods 420 correspond to two driven gears and are arranged on opposite sides of the pressure-bearing member 300, and are connected to the two first driven wheels 440 one by one.

[0064] Please refer to Figure 2 The lifting mechanism includes a driving member 410, a driving gear 430 connected to the driving member 410, two first driven wheels 440, two second driven wheels 450, and two screw rods 420. The two first driven wheels 440 are arranged on opposite sides of the driving gear 430 and mesh with the driving gear 430. The two first driven wheels 440 mesh with the two second driven wheels 450 in a one-to-one correspondence and are connected to the two screw rods 420 in a one-to-one correspondence. The provision of the two driven gears enables the driving force of the driving member 410 to be more evenly transmitted to the pressure member 300, reducing energy loss and vibration during the transmission process, and improving the stability and working efficiency of the juicer 10. At the same time, the corresponding connection between the two screw rods 420 and the first driven wheels 440 makes the up and down movement of the pressure member 300 more stable and precise, ensuring the reliability and accuracy of the juicer 10 during operation.

[0065] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made based on the contents of the present invention specification and drawings, or direct / indirect application in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A lifting mechanism, characterized in that: include: Driving parts; A driving gear, the driving member is drivingly connected to the driving gear; A driven gear meshing with the driving gear, the driven gear comprising a first driven wheel, the center of the first driven wheel having a limiting groove penetrating along the axial direction thereof, the limiting groove comprising a first groove body and a second groove body connected to each other, the second groove body extending in the radial direction of the first driven wheel; The screw rod has a first end and a second end opposite to each other. The screw rod is inserted into the first slot body. The first end is provided with a limiting member, and the limiting member is at least partially disposed in the second slot body.

2. The lifting mechanism according to claim 1, characterized in that: There are two second slot bodies, and the two second slot bodies are arranged opposite to each other.

3. The lifting mechanism according to claim 2, characterized in that: The first end is provided with a plug hole penetrating through the side wall of the screw rod, and the limiting member is configured as a plug pin, the plug pin passes through the plug hole, and two end portions of the plug pin are provided in two of the second groove bodies.

4. The lifting mechanism according to claim 2, characterized in that: The groove side wall of the limiting groove extends along the axial direction of the first driven wheel toward the second end, and protrudes from a side surface of the first driven wheel facing the second end.

5. The lifting mechanism according to claim 1, characterized in that: The lifting mechanism further includes a fastener, which is disposed on a side of the first driven wheel away from the second end, and is disposed on the outer periphery of the first end and connected to the first driven wheel.

6. The lifting mechanism according to claim 1, characterized in that: The driven gear further includes a second driven wheel, which is disposed between the driving gear and the first driven wheel and meshes with the driving gear and the first driven wheel.

7. A juice extractor, characterized in that: The juicer includes a frame, a rolling plate, a pressure-bearing member and a lifting mechanism as described in any one of claims 1 to 6, wherein the rolling plate, the pressure-bearing member and the lifting mechanism are installed on the frame, the pressure-bearing member is arranged below the rolling plate, the pressure-bearing member is used to place the squeezed material, and the screw rod is connected to the pressure-bearing member so that the pressure-bearing member can move closer to or farther away from the rolling plate.

8. The juice extractor according to claim 7, characterized in that: The frame includes a first mounting plate and a second mounting plate respectively arranged at both ends of the screw rod, the first mounting plate is arranged above the second mounting plate, the pressure-bearing member and the rolling plate are arranged between the first mounting plate and the second mounting plate, and the driving member, the driving gear, the driven gear and the rolling plate are arranged on the first mounting plate, and the screw rod is movably connected to the pressure-bearing member to drive the pressure-bearing member to move up and down.

9. The juice extractor according to claim 8, characterized in that: The rolling plate is installed on a side of the first mounting plate close to the second mounting plate, and the driving member, the driving gear, and the driven gear are arranged on the other side of the first mounting plate away from the second mounting plate.

10. The juice extractor according to claim 8, characterized in that The driven gear and the screw rod are respectively provided with two, the two driven gears are arranged on two opposite sides of the driving gear, the two screw rods correspond to the two driven gears and are arranged on two opposite sides of the pressure-bearing member, and are connected to the two first driven wheels one by one.

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