Transmission structure of chopping machine

Abstract

A rotating seat, a transmission ring and a transmission seat are arranged on a fixed shaft in a top cover, a transmission wheel with a tooth groove is arranged on the transmission seat, the bottom of the rotating seat is sleeved outside the transmission wheel, a guide groove is arranged inside the rotating seat, the transmission ring is connected with a positioning column through an elastic strip, and the positioning column moves along the guide groove. When the positioning column moves to the end portion of the guide groove, the positioning column is clamped and fixed with the transmission wheel, the rotating base and the transmission base are mutually fixed in the circumferential direction, at the moment, the transmission base is driven to rotate through the handle and the pull rope, then the transmission base and the cutter shaft with the blade are driven to rotate, food materials in the containing cup are cut, and after the pull rope is released, the food materials are cut. The elastic piece drives the pull rope to be wound around the rotating seat again and drives the positioning column to be separated from the transmission wheel. The transmission structure of the chopper is simple in structure, stable in work and convenient and easy to operate.

Description

Technical Field

[0001] This utility model relates to food processing equipment, and in particular to a transmission structure for a food shredder. Background Technology

[0002] To improve the convenience of chopping vegetables and mincing meat, people are increasingly using various manual or electric vegetable choppers. While electric vegetable choppers generally offer advantages such as ease of use, convenience, and high efficiency, manual vegetable choppers remain popular due to their higher cost and maintenance difficulties. A pull-type vegetable chopper is a commonly used manual vegetable chopper, such as... Figure 1 As shown, it includes a container 101 with an open top, a top cover 102 placed on top of the container, a transmission assembly 103 mounted on the top cover, a rotating shaft 104 placed inside the container and connected to the transmission assembly, a blade 105 mounted on the rotating shaft, and a handle 107 that drives the transmission assembly to rotate via a pull rope 106. When the handle is pulled outward, the pull rope drives the transmission assembly to rotate, which in turn drives the rotating shaft and the blade to rotate, thereby processing the food inside the container. After the handle is released, a reset device inside the transmission assembly will cause the pull rope and the handle to retract again. The transmission assembly of this type of hand-operated shredder has various structural forms, commonly including gear transmission and lever actuation, but these transmission assemblies generally suffer from problems such as complex structure, laborious operation, and weak rotational power. Utility Model Content

[0003] The purpose of this utility model is to provide a shredder transmission structure that is simple in structure, easy to operate, and stable in operation.

[0004] The shredder transmission structure of this utility model includes a cutter shaft placed inside a container and equipped with blades, and a top cover with a pull rope and a handle. The top cover contains a rotating seat and a transmission seat arranged opposite each other. The bottom of the transmission seat passes through the bottom of the top cover and connects to the cutter shaft. The top of the transmission seat is equipped with a transmission wheel, the wheel surface of which has multiple semi-circular recessed grooves along its circumference. A fixed shaft is located at the top of the top cover, and the rotating seat and transmission wheel are rotatably mounted on the fixed shaft. The rotating seat is connected to the pull rope and rotates in a certain direction with the pull rope. The seat is also connected to an elastic element that drives it to rotate in the opposite direction and reset. The bottom of the rotating seat is provided with a recessed platform that is fitted around the transmission wheel. The inner wall of the recessed platform is provided with several guide grooves along the circumference, and the distance between the guide groove and the transmission wheel gradually increases from one end to the other. There is also a transmission ring mounted on a fixed shaft inside the recessed platform. The transmission ring is provided with several elastic strips along the circumference. The other end of each elastic strip is provided with a positioning post. The positioning post moves along the guide groove and can move to the end of the guide groove and between the tooth groove, and clamps and fixes the rotating seat and the transmission seat along the circumference.

[0005] The utility model discloses a shredder transmission structure, the cutter shaft with blade is placed in the container cup, the handle and the pull rope of mutual connection are installed on the top cap, and the top cap still is equipped with fixed shaft and the rotation seat, the transmission ring and the transmission seat of installation on the fixed shaft, the transmission seat in it is connected the cutter shaft in the container cup, and the pull rope is wound on the rotation seat, when the user draws out the pull rope through the handle, will drive the rotation seat rotation, the transmission seat of this time will not rotate, and the positioning column on the transmission ring is affected by the rotation seat and moves from the far end of the guide groove to the near end, and the elastic member and the elastic strip will change shape, and the elastic force of driving the rotation seat and the positioning column reset is respectively possessed, until the positioning column moves to the near end of the guide groove and with the tooth slot of transmission wheel mutual clamping, from the circumference with the rotation seat and transmission seat each other fixed, with the continuous drawing of the pull rope, will drive the cutter shaft rotation through the rotation seat and transmission seat, to make the blade cut the food material in the container cup, when the user no longer draws the handle, the elastic member drives the rotation seat reverse rotation, on one hand makes the pull rope rewrap on it, on the other hand drives the positioning column to exit the tooth slot of transmission wheel, and the cutter shaft stops rotating, until the pull rope is retracted, the user draws the pull rope again, can drive the cutter shaft rotation and continue cutting food material, after that, repeatedly draw the pull rope, can cut the food material required. The structure of this kind of shredder transmission structure is simple and stable, and the cooperation of the positioning column, the guide groove and the transmission wheel makes the user not pull the transmission in the initial stage of pulling the pull rope, only needs very small pulling force, until the positioning column and the transmission wheel clamping, the hand of the user has certain inertia, then pulls the transmission wheel to drive the cutter shaft rotation, can reduce the required pulling force, reduce the labor intensity, improve the cutting force of the blade, better shred the food material.

[0006] Preferably, the guide groove is radially inclined relative to the rotation seat, and the elastic strip is arc-shaped.

[0007] Preferably, the top cover includes an upper cover and a lower cover arranged oppositely, the fixed shaft is installed on the inner side of the upper cover, the transmission seat is installed on the lower cover, the top surface of the upper cover is provided with a mounting groove for placing the handle, and the pull rope passes through the cover and extends into the mounting groove to be connected with the handle.

[0008] Preferably, the lower cover has a through hole in the middle, and the side wall of the transmission seat is stepped and installed at the through hole of the lower cover.

[0009] Preferably, the top surface of the rotation seat is provided with an inner concave upper concave table, the bottom of the upper concave table is provided with an axle hole communicating with a lower concave table; the elastic member is a spiral clock spring, one end of the clock spring is fixed to the upper concave table, and the other end is arranged above the axle hole; the fixed shaft includes an upper shaft fixedly installed on the top cover and a lower shaft connected with the transmission wheel, the top surface of the lower shaft is provided with a transmission hole, the inner wall of the transmission hole is provided with a transmission piece protruding in the radial direction, the bottom end of the upper shaft is provided with a clamping groove extending upward, and the clamping groove is sequentially sleeved on the end of the clock spring above the axle hole and is clamped and fixed with the transmission piece.

[0010] Preferably, a cover plate is provided to cover the upper recess, the cover plate is sleeved on the upper shaft and arranged above the upper recess.

[0011] Preferably, the middle part of the rotating seat is provided with a winding groove, the rotating seat is provided with a rope end groove below the winding groove, a through hole is formed in the winding groove and communicated with the rope end groove, and the pull rope is wound on the winding groove and the end part is arranged in the rope end groove through the through hole.

[0012] Through the arrangement of the above shredder transmission structure, the convenience and stability of the shredder operation can be further improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a structural schematic diagram of an existing hand-pulled shredder.

[0014] Figure 2 is a structural schematic diagram of the shredder transmission structure.

[0015] Figure 3 is Figure 2 is a sectional structural schematic diagram of the shredder transmission structure.

[0016] Figure 4 is a schematic diagram of the state of pulling the pull rope out of the pull handle.

[0017] Figure 5 is a connection structure schematic diagram of the top cover, the rotating seat and the transmission seat.

[0018] Figure 6 is a structural schematic diagram of the upper cover and the fixed shaft.

[0019] Figure 7 is a connection structure schematic diagram of the rotating seat and the transmission seat.

[0020] Figure 8 is a connection structure schematic diagram of the rotating seat and the elastic member.

[0021] Figure 9 is a top surface structure schematic diagram of the rotating seat.

[0022] Figure 10 is a schematic diagram of the connection state of the guide groove of the rotating seat and the positioning column.

[0023] Figure 11 is a connection structure schematic diagram of the lower shaft, the transmission ring, the elastic strip and the positioning column. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative efforts belong to the scope of the present application.

[0025] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications also change accordingly.

[0026] If the embodiments of the present application involve descriptions such as "first" or "second", the descriptions of "first" or "second" are only for description purposes, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of the various embodiments can be combined with each other, but must be based on the fact that the technical solutions can be realized by those skilled in the art, and when the combination of the technical solutions contradicts each other or cannot be realized, it should be considered that the combination of the technical solutions does not exist and is not within the protection scope required by the present application.

[0027] The present application provides a shredder transmission structure.

[0028] The shredder transmission structure of the present application comprises a cutter shaft 13 placed in a container cup 11 and provided with a cutter blade 12, and a top cover 2 provided with a pull rope 14 and a handle 15; the top cover is internally provided with a rotating seat 3 and a transmission seat 4 oppositely arranged, the bottom of the transmission seat penetrates through the bottom of the top cover and is connected with the cutter shaft, the top end of the transmission seat is provided with a transmission wheel 41, and the wheel surface of the transmission wheel is provided with a plurality of semicircular concave tooth grooves 42 in the circumferential direction; the top of the top cover is internally provided with a fixed shaft 5, and the rotating seat and the transmission wheel are rotatably sleeved on the fixed shaft; the rotating seat is connected with the pull rope and rotates along a certain direction with the pull rope, and the rotating seat is further connected with an elastic member 6 for driving the rotating seat to rotate reversely and reset, the bottom of the rotating seat is provided with a lower concave platform 31 sleeved outside the transmission wheel, the inner wall of the lower concave platform is provided with a plurality of guide grooves 32 in the circumferential direction, the spacing between the guide grooves and the transmission wheel gradually increases from one end to the other end, and the lower concave platform is further provided with a transmission ring 7 mounted on the fixed shaft, the transmission ring is provided with a plurality of elastic strips 8 in the circumferential direction, the other end of each elastic strip is provided with a positioning column 9, and the positioning column moves along the guide groove and can be moved to the end of the guide groove and the tooth groove and clamps and fixes the rotating seat and the transmission seat in the circumferential direction.

[0029] like Figures 2-11 As shown, a bladed cutter shaft is placed inside a container. A handle and a pull rope are connected to each other and mounted on a top cover. Inside the top cover, there is a fixed shaft and a rotating seat, a transmission ring, and a transmission base mounted on the fixed shaft. The transmission base connects to the cutter shaft inside the container, while the pull rope is wound around the rotating seat. When the user pulls out the pull rope using the handle, the rotating seat rotates. The transmission base does not rotate, and the positioning pin on the transmission ring moves from the far end to the near end of the guide groove under the action of the rotating seat. The elastic element and elastic strip deform, respectively providing the elastic force to reset the rotating seat and the positioning pin. This continues until the positioning pin moves to the guide groove. The near end of the pull cord engages with a toothed groove on the drive wheel, thus fixing the rotating seat and the drive wheel together circumferentially. As the pull cord is pulled out, the rotating seat and the drive wheel drive the blade shaft to rotate, causing the blade to cut the food in the container. When the user stops pulling the pull cord, the elastic element drives the rotating seat to rotate in the opposite direction, causing the pull cord to rewind around it and disengaging the positioning pin from the toothed groove of the drive wheel, stopping the blade shaft from rotating. Once the pull cord is retracted, the user can pull it out again to drive the blade shaft to rotate and continue cutting the food. Repeating the pulling of the pull cord will chop the desired food.

[0030] like Figure 2 , 5 As shown, the top cover 2 includes an upper cover 21 and a lower cover 22 arranged opposite to each other. The fixed shaft 5 is installed on the inner side of the upper cover, and the transmission seat 4 is installed on the lower cover. The top surface of the upper cover is provided with a mounting groove 23 for placing the handle 15. The pull rope 14 passes through the cover and extends into the mounting groove to connect with the handle, thereby improving the aesthetics of the shredder and better accommodating the handle. The lower cover 22 has a through hole in the middle. The side wall of the transmission seat 4 is stepped and installed at the through hole of the lower cover to improve the connection strength and form a waterproof barrier, preventing water from the container from seeping into the top cover.

[0031] like Figures 5-9 As shown, the top surface of the rotating base 3 has a concave upper recessed platform 33, and the bottom of the upper recessed platform has a shaft hole communicating with the lower recessed platform; the elastic element 6 is a spiral spring, one end of which is fixed to the upper recessed platform and the other end is located above the shaft hole; the fixed shaft 5 includes an upper shaft 51 fixedly installed on the top cover 2 and a lower shaft 52 connecting the transmission wheel 41. The top surface of the lower shaft has a transmission hole 53, and the inner wall of the transmission hole has a radially protruding transmission plate 54. The bottom end of the upper shaft has an upwardly extending slot 55, which is sequentially fitted onto the end of the spring located above the shaft hole and engaged with the transmission plate to fix it, thereby fixing the end of the spring. This also facilitates the assembly and disassembly of various components. In addition, there is a cover plate 36 that can cover the upper recessed platform 33. The cover plate is fitted onto the upper shaft 51 and located above the upper recessed platform to prevent the spring from coming out.

[0032] As Figure 7 The middle part of the rotating seat 3 is provided with a winding groove 34, and the rotating seat 3 is provided with a rope end groove 35 below the winding groove. A through hole is formed in the winding groove and communicates with the rope end groove. The pull rope 14 is wound on the winding groove, the end thereof passes through the through hole and is arranged in the rope end groove, so that the knot of the pull rope end is clamped.

[0033] As Figure 10 The guide groove 32 of the rotating seat is arranged to be inclined relative to the radial direction of the rotating seat 3, so that the lower concave platform and the plurality of guide grooves form a turbine shape with the arc-shaped blades. The elastic strip 8 is correspondingly arranged to be arc-shaped to match the shape of the guide groove. This can match the rotating direction of the rotating seat, better drive the positioning column to move along the guide groove, and thus improve the accuracy and stability of the operation of the shredder.

[0034] The above is only the preferred embodiment of the present application, and does not limit the patent range of the present application. Any equivalent structural transformation, direct / indirect application in other related technical fields, or the like, which is made under the inventive concept of the present application, and according to the content of the present application and the drawings, is included in the patent protection range of the present application.

Claims

1. A shredder transmission structure, comprising a cutter shaft (13) placed inside a container (11) and equipped with blades (12), and a top cover (2) equipped with a pull rope (14) and a handle (15), characterized in that: The top cover contains a rotating seat (3) and a transmission seat (4) arranged opposite each other. The bottom of the transmission seat passes through the bottom of the top cover and is connected to the cutter shaft. The top of the transmission seat is equipped with a transmission wheel (41). The surface of the transmission wheel has multiple semi-circular recessed tooth grooves (42) along the circumference. The top of the top cover is equipped with a fixed shaft (5). The rotating seat and the transmission wheel are rotatably fitted onto the fixed shaft. The rotating seat is connected to a pull rope and rotates in a certain direction with the pull rope. The rotating seat is also connected to an elastic element (6) that drives it to rotate in the opposite direction and reset. The bottom of the seat is provided with a recessed platform (31) that is fitted around the transmission wheel. The inner wall of the recessed platform is provided with several guide grooves (32) along the circumference. The distance between the guide groove and the transmission wheel gradually increases from one end to the other end. There is also a transmission ring (7) mounted on a fixed shaft inside the recessed platform. The transmission ring is provided with several elastic strips (8) along the circumference. The other end of each elastic strip is equipped with a positioning post (9). The positioning post moves along the guide groove and can move to the end of the guide groove and between the tooth groove, and clamps and fixes the rotating seat and the transmission seat along the circumference.

2. The shredder transmission structure according to claim 1, characterized in that: The guide groove (32) is radially inclined relative to the rotating seat (3), and the elastic strip (8) is arc-shaped.

3. The shredder transmission structure according to claim 1 or 2, characterized in that: The top cover (2) includes an upper cover (21) and a lower cover (22) arranged opposite to each other. A fixed shaft (5) is installed on the inner side of the upper cover, and a transmission seat (4) is installed on the lower cover. The top surface of the upper cover is provided with a mounting groove (23) for placing a handle (15). A pull rope (14) passes through the cover and extends into the mounting groove to connect with the handle.

4. The shredder transmission structure according to claim 3, characterized in that: The lower cover (22) has a through hole in the middle, and the side wall of the transmission seat (4) is stepped and installed at the through hole of the lower cover.

5. The shredder transmission structure according to claim 1 or 2, characterized in that: The top surface of the rotating seat (3) is provided with an inwardly recessed upper concave platform (33), and the bottom of the upper concave platform is provided with a shaft hole that connects to the lower concave platform; the elastic element (6) is a spiral spring, one end of the spring is fixed to the upper concave platform and the other end is set above the shaft hole; the fixed shaft (5) includes an upper shaft (51) fixedly installed on the top cover (2) and a lower shaft (52) connected to the transmission wheel (41). The top surface of the lower shaft is provided with a transmission hole (53), and the inner wall of the transmission hole is provided with a transmission plate (54) protruding radially. The bottom end of the upper shaft is provided with an upwardly extending slot (55), which is sequentially fitted onto the end of the spring located above the shaft hole and engaged and fixed with the transmission plate.

6. The shredder transmission structure according to claim 5, characterized in that: There is a cover plate (36) that can cover the upper recess (33), the cover plate is fitted on the upper shaft (51) and set above the upper recess.

7. The shredder transmission structure according to claim 1 or 2, characterized in that: The rotating seat (3) has a winding groove (34) in the middle and a rope end groove (35) below the winding groove. The winding groove has a through hole that connects to the rope end groove. The pull rope (14) is wound around the winding groove and its end passes through the through hole and is placed in the rope end groove.

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