WO2020136465A1

WO2020136465A1 - Pull-type shift transmission system and food processor

Info

Publication number: WO2020136465A1
Application number: PCT/IB2019/059812
Authority: WO
Inventors: 汪恩光; 曉峰楊; 鴻泰黃
Original assignee: 汪恩光
Priority date: 2018-12-27
Filing date: 2019-11-15
Publication date: 2020-07-02

Abstract

Disclosed is a pull-type shift transmission system, comprising a pulling mechanism (1). The pulling mechanism at least comprises a coaxial column, the coaxial column being formed by connecting turn tables (11) with different diameters, and the plane where the turn tables with different diameters are connected being a cohesive surface (12); the pulling mechanism is provided with a rope binding place (2), wherein the rope binding place is arranged on the side of the pulling mechanism, one end of a pull rope (3) being connected to the pulling mechanism at the rope binding place and wound around the turn tables; and the pulling mechanism is connected to a resilient mechanism (4) that is used for withdrawing the pull rope after the pull rope is pulled out. Further disclosed is a food processor comprising the pull-type shift transmission system. The pull-type shift transmission system can change a corresponding rotation gear by simply pulling up and down without stopping to change the equipment during the process or interrupting the drag operation, and is thus more convenient to use.

Description

Pull-type shift transmission system and food processor

Technical field

The invention relates to a shift transmission system, in particular to a non-electric pull-type shift transmission system.

Background technique

The existing pull-type transmission system is mainly composed of a single round block or multiple coaxial round blocks of different diameters, which can be used in a manual pull-type chopped food processor. The general manual pull type chopped food processor has only a single output mode, and different transmission ratios need to be changed. For example, when changing the size of the torque acceleration and deceleration, the pull-type drive system composed of multiple round blocks is combined through variable speed. The lever adjusts the gear to shift gears.

The above-mentioned existing pull-type transmission system has at least the following disadvantages:

It is not convenient to adjust the output transmission ratio at any time.

For example, in a food chopper, the first step is to cut a larger and harder food with a higher force rather than a higher speed, but when cutting a small food, a higher speed is required.

Some existing food choppers cannot change the transmission ratio. Even if the transmission ratio of some equipment can be changed, it is necessary to stop pulling and adjust the structure (such as the position of the gear or coaxial round block) to continue to use it. Coherent pulling cannot be used. Actions are processed, which makes it inconvenient to use.

Summary of the invention

The main technical problem solved by the present invention is to provide a pull-type shift transmission system and a food processor which are convenient for switching the rotation gear.

The technical means adopted by the present invention are as follows.

A pull-type shifting transmission system includes a pulling mechanism, and the pulling mechanism includes at least one coaxial column, the coaxial column is composed of connections of rotating tables with different diameters, and a plane connecting different rotating tables with different diameters is an interface surface The pulling mechanism is provided with a binding rope, the binding rope is located on the side of the pulling mechanism, one end of the pulling rope is connected to the pulling mechanism through the binding rope, and is wrapped around the rotary table; the pulling mechanism is connected with a rebound that provides resilience The mechanism is used to retract the drawstring after the drawstring is pulled out.

The coaxial column is composed of two rotating tables with different diameters, wherein the upper rotating table has a larger diameter and the lower rotating table has a smaller diameter. The connecting surface extends outwardly with a protruding portion protruding outward.

The binding rope is provided at the protrusion.

The binding rope is close to the joint surface and is located above or below the joint surface.

The binding rope has a structure penetrating through the rotary table, and a through groove is formed inside the rotary table. One end of the pull rope is connected to one end of the groove, and the other end extends through the groove to extend the rotary table.

The binding rope has a structure penetrating through the rotary table, and the pull rope extends outward from the rotary table.

The rebound mechanism is a set of coil springs, which are arranged above or below the pulling mechanism

A food cooking machine, the above-mentioned pull-type shift transmission system, the pull mechanism is connected with a transmission mechanism, and the transmission mechanism is connected with a food processing device that operates in a rotating manner.

It is also provided with a bottom cover, a rebound mechanism is connected to the center of the bottom cover, the bottom cover is connected with the pulling mechanism, the pulling mechanism is provided with an upper cover covering the pulling mechanism, and the upper cover includes a top surface on the top and a side wall on the side The lower edge of the side wall is connected to the bottom cover, and the side wall of the upper cover is provided with a guide groove for the binding rope to pass through.

The position of the guide groove is parallel to the place where the rope is tied. The guide groove is a longitudinal guide groove. The length of the guide groove spans a rotating table with different diameters. The outer end of the pull rope is connected to the handlebar. The length of the handlebar is greater than Length of longitudinal guide groove.

The transmission mechanism is a rotating shaft or a transmission shaft connected with a one-way gear, and the upper part of the transmission shaft passes through the top surface of the upper cover and is connected with the food processing device.

The shift transmission system is also provided with a guide structure, the guide structure includes a limit portion for the pull rope to pass through and limit, and a control portion for controlling the up and down movement of the limit portion, the pull rope passes through the limit portion and passes through the control portion Control the position of the limiter and thus the position of the drawstring.

The control part includes a button shaft column, a second shaft column is below the button shaft column, the diameter of the second shaft column is smaller than that of the button shaft column, a third shaft column is provided at a certain distance below the second shaft column, the third shaft column and the third shaft column The two shaft columns have the same diameter, and the outer shells of the second shaft column and the third shaft column are provided with springs; a platform is connected below the third shaft column, and the lower end of the spring is pressed against the platform; the guide structure is a laterally arranged perforated sheet body The one side of the perforated sheet body is connected to the button shaft column, and the pulling rope passes through the hole of the perforated sheet body.

The control part includes a button shaft column, a coaxial shaft sleeve of the button shaft column is provided with a duct groove column, a thin shaft column is connected below the button shaft column, and the thin shaft column sleeve is provided with a spring, the upper part of the spring is pressed against the lower part of the button shaft column, the lower part is pressed against The inner bottom platform of the duct slot column; the guiding structure is a laterally arranged perforated sheet body, one side of the perforated sheet body is connected to the thin shaft column, and the pulling rope passes through the hole of the perforated sheet body. The control part is a button structure of a ballpoint pen, which includes a button shaft column, a coaxial shaft sleeve of the button shaft column is provided with a duct groove column with a serration at the bottom, a button shaft column sleeve is provided with a spring for resetting purpose, The movable column; the guide structure is a laterally arranged perforated sheet body, one side of the perforated sheet body is connected to the movable column, and the drawstring passes through the hole of the perforated sheet body.

The control part includes a knob shaft column, a knob is above the knob shaft, a shaft column body is connected below the knob, a first guiding structure is provided on the outside of the shaft column body, a catheter groove column is provided on the outer sleeve of the shaft column body, and the catheter groove column There is a second guide structure matching the first guide structure on the inside. Relying on the interaction between the first guide structure and the second guide structure, the rotary knob shaft column drives the catheter slot column to move up and down; the guide structure is lateral A perforated sheet body is provided, one side of the perforated sheet body is connected to a duct slot column, and a drawstring passes through a hole of the perforated sheet body. The first guide structure is a screw thread or a tapered convex bone or groove, and the second guide structure is a screw thread or a tapered groove or convex bone.

A food processor comprising the above-mentioned pull-type shift transmission system, the pulling mechanism is connected with a transmission mechanism, and the transmission mechanism is connected with a food processing device operating in a rotating manner; the transmission mechanism is a rotating shaft or a one-way gear is connected The transmission shaft is connected to the food processing device at the lower part of the transmission shaft, and at the upper part is the outer cover. The upper surface of the outer cover is provided with a through hole to expose the guide structure.

The beneficial effects of the present invention are as follows. The present invention provides a brand-new non-electric pull-type shift transmission system, and can be used as a core structure to make various food cooking machines. Its structure is simple, and the corresponding action can be changed by a simple upward and downward movement It is more convenient to use the rotating gear without stopping to replace the device or interrupt the pulling operation during use.

BRIEF DESCRIPTION

FIG. 1a is a schematic diagram of the pulling mechanism of the present invention. The pulling rope is wrapped around a rotating table with a small diameter. FIG. 1b is a schematic structural view of the pulling mechanism of the present invention after pulling on the upper cover and pulling down. FIG. 1c is a schematic diagram of the pulling mechanism of the present invention. The pulling rope is wrapped around a rotating table with a larger diameter. FIG. Id is a schematic structural view of the pulling mechanism of the present invention after being pulled up with the upper cover. 2 is a schematic diagram of a cross-sectional structure of an embodiment of a pull-type shift transmission system of the present invention. In the figure, a pull rope is wound around a rotating table with a smaller diameter in a tightened state.

FIG. 3 is a schematic diagram of a cross-sectional structure of another embodiment of the pull-type shift transmission system of the present invention. In the figure, the pull rope is wound around a rotating table with a larger diameter in a tightened state.

Fig. 4a is a schematic perspective view of the structure of the pulling mechanism in the present invention, which is not connected with the pulling rope.

Fig. 4b is a schematic perspective view of the structure of the pulling mechanism in the present invention, which is not connected with the pulling rope. Fig. 4c is a schematic diagram of the cross-sectional structure of the A-A plane in Fig. 4b.

FIG. 5 is a schematic diagram of the explosion structure of the pull-type shift transmission system of the present invention as a food processor without connecting a food processing device.

6 is a schematic perspective view of the appearance structure of the food processor of the present invention.

7 is a schematic view of the structure of the guide groove provided in the upper cover of the present invention.

8a is a schematic view of the front structure of the first embodiment of the guide mechanism of the present invention.

Fig. 8b is a schematic perspective view of the first embodiment of the guiding mechanism of the present invention.

FIG. 8c is a schematic diagram of the left side structure of FIG. 8a.

FIG. 9 is a schematic perspective view of the second embodiment of the guide mechanism of the present invention.

FIG. 10a is a schematic front view of a third embodiment of the guide mechanism of the present invention.

Fig. 10b is a schematic perspective view of the third embodiment of the guiding mechanism of the present invention.

FIG. 10c is a schematic diagram of the left side structure of FIG. 10a.

Fig. 1 1a is a schematic diagram of the front structure of the fourth embodiment of the guiding mechanism of the present invention.

FIG. 11b is a schematic view of the stereo structure of the fourth embodiment of the guiding mechanism of the present invention.

Figure 1 1c is a schematic diagram of the left side structure of Figure 10a.

Fig. 1 Id is a schematic diagram of another style stereo structure of the fourth embodiment of the guiding mechanism of the present invention.

Fig. 12a is a schematic diagram of the front structure of the pull-type shift transmission system of the present invention used on the upper side of the food processor.

Fig. 12b is a schematic diagram of the vertical structure of the pull-type shift transmission system of the present invention used on the upper side of the food processor.

Fig. 12c is a schematic diagram of the left side structure TF of Fig. 12a.

detailed description

The invention discloses a pull-type shifting transmission system, which includes a pulling mechanism 1, the pulling mechanism 1 includes at least one coaxial column, the coaxial column is formed by connecting rotary tables 11 with different diameters, and rotary tables 11 with different diameters The connecting plane is the connecting surface 12.

The pulling mechanism 1 is provided with a binding rope place 2, the binding rope place 2 is provided on the side of the pulling mechanism 1, the 3 end of the pulling rope is connected to the pulling mechanism 1 through the binding rope place 2, and is wound around the rotating table 11; the pulling mechanism 1 is connected with a rebound mechanism 4 that provides resilience for retracting the drawstring 3 after the drawstring 3 is pulled out. The rebound mechanism here can generally be a coil spring (tension spring), which is arranged above or below the pulling mechanism (in this embodiment, it is located below), which is an existing common structure. In the present invention, the initial state is pulled The rope is wound on the rotating table, the coil spring is in a relaxed state, after pulling out the rope, the coaxial column rotates, and the coil spring becomes tightened, and after loosening the rope, the coil spring recovers to its own due to its own elastic force In the relaxed state, that is, to provide a rebound force to the pull rope to drive the rotary table to rotate, and the pull rope is restored to be wrapped around the rotary table. Due to the different diameter of the rotary table, when using it, you can pull it diagonally upward or downward when pulling the rope. After the rope is pulled out, you can freely roll on the rotary table of different diameters when rebounding When the pull rope is pulled again, different distances can be generated due to the different distance between the pull rope and the axis, so that under different rotation modes, different torque and speed are output.

In the preferred embodiment, the coaxial column is composed of two rotating tables 11 with different diameters, as shown in FIGS. 1a and 1c, where the upper rotating table 11 has a larger diameter and the lower rotating table 11 has a smaller diameter . The larger diameter above can output more power, and the smaller diameter below can output higher speed. The diameter can also be interchanged up and down. Considering ergonomics, the downward/horizontal pulling action is more suitable for high-speed rotation, so The lower diameter is smaller and the upper diameter is larger. As shown in Figure la and Figure lb, when pulling down, the drawstring is fixed on a smaller-diameter rotating table, bringing out a high-speed rotation output. As shown in Figure lc and Figure Id, when the drawstring is pulled upward, the drawstring is fixed on a rotating table with a larger diameter, which brings out a large torque to rotate the output.

The position of the binding rope 2 can be set at a position close to the engagement surface 12, as shown in FIG. 2, it is set at the position of the lower rotary table 11 close to the engagement surface, and of course it can also be set at the upper rotary table close to the engagement surface s position. In addition, as shown in FIGS. 2, 3 and 4a-c, the engaging surface 12 may also extend outwardly with a protrusion 121 slightly protruding outward, as shown in FIGS. 2 and 4a-c, the binding The rope portion 2 may be provided on the protrusion 121. All of these structures can pull the rope upward or downward, so that the rope 3 is wrapped around the corresponding rotating table, and the slightly protruding structure of the protruding part can help pull the rope when the rope is recovered. Tightening can also help the drawstring to smoothly shuttle between different diameter parts. Figure 4a-c shows two different rope ties, which can be fixed to the corresponding rope ties according to requirements.

As shown in FIG. 2, in order to better recover the pull rope 3, the binding place 2 may be a structure penetrating through the rotary table 11, and a through groove 21 is formed inside the rotary table 11, and the pull wire 3 is connected to the groove The other end extends through the slot 21 from the rotating table 11. Pull rope and tie rope in this picture Every place is set on the rotating table below. In addition, the binding rope 2 can also be provided inside the rotating table 11, the 3-end of the pull rope is connected to the binding rope 2 inside the rotating table 11, and the other end extends outward from the rotating table 11.

In actual use, the above-mentioned pull-type shift transmission system is generally used in a food processor.

The present invention also discloses a food processor, as shown in FIGS. 5 and 6, which includes the above-mentioned pull-type shift transmission system, the pull mechanism 1 is connected to a transmission mechanism, and the transmission mechanism is connected to a food processing machine that operates in a rotating manner Device. The pulling mechanism drives the transmission mechanism through rotation, and the transmission mechanism further drives the food processing device. The transmission mechanism may be a general transmission shaft 5. The rotation of the pulling mechanism drives the transmission shaft 5 to rotate, thereby further driving the food processing device. In this embodiment, as shown in the figure, it may be a transmission shaft 5 provided with a one-way gear set 6, the transmission shaft 5 is connected to the food processing device, when the coil spring pulls the pulling mechanism, it will not rotate The power is transmitted to the drive shaft so that it continues to rotate according to inertia without affecting the operation of the food processing device. The food processing device here may be any existing device that realizes the corresponding function by rotating, for example, a chopper, agitator, dehydrator, etc. As shown in the figure, it is a schematic diagram of a container structure with a food processing device. The transmission structure of this transmission shaft, the transmission structure combined with the one-way gear set, and the structure and function of the corresponding food processing device are all structures and products of the prior art, which can be implemented by those of ordinary skill in the art.

The food processor of the present invention is further provided with a bottom cover 7, and a non-slip pad 71 may be provided under the bottom cover. The bottom cover 7 is centrally connected to a rebound mechanism 4, where the rebound mechanism 4 is a tension spring (coil spring). The cover 7 is connected to the pulling mechanism 1. The casing of the pulling mechanism 1 is provided with an upper cover 8 covering the pulling mechanism 1. The upper cover 8 includes a top surface 81 at the top and a side wall 82 at the side, and the transmission shaft 5 passes through The top surface 81 of the upper cover is connected to the food processing device, the lower edge of the side wall 82 is connected to the bottom cover 7, and the side wall 82 of the upper cover 8 is provided with a guide slot 83 for the tie rope to pass through, as shown in FIG. 7 . The position of the guide groove 83 is parallel to the binding rope 2 (as shown in FIGS. 2 and 3), the guide groove 83 is a longitudinal guide groove, and the length of the guide groove 83 spans the rotary table 1 1 with different diameters Correspondingly, the outer end of the pull cord 3 is connected to the handle 31, and the length of the handle 31 is greater than the length of the longitudinal guide groove 83. As shown in FIGS. 1b and 1d, the handle 31 can be used to pull the drawstring more conveniently and comfortably, the guide groove 83 can also play a limiting role on the drawstring, and the handle 31 rebounds on the drawstring 3 After that, it can be stuck outside the guide slot 83. As shown in FIG. 6, it is a schematic view of an appearance structure of a food processor of the present invention. A pull-type shift transmission system is accommodated in the upper cover, and a food processing device is connected at the top. The structure is generally provided with a blade inside, stirring Tools, etc., have a transparent or opaque outer cover 9 structure.

Further, the pull-type shift transmission system of the present invention can also be provided with a guide structure, the purpose of the guide structure is to haul the pull rope, so as to guide the pull-out direction and horizontal height of the pull rope, to be more accurate and convenient Is wound on a rotating table with different diameters. The guide structure includes a limiter 20 for allowing the pull rope to pass through and limit, and a control part 21 for controlling the up and down movement of the limit 20, and the pull rope 3 passes through the limiter 20 and controls the limiter 20 through the control part 21 To control the position of the drawstring 3.

General simple mechanical structures can achieve this function, and several specific embodiments are given below. As shown in Figures 8a-8c, it is a push-button spring return solution. The control part 21 includes a button shaft post 211, a second shaft post 212 is below the button shaft post 211, the diameter of the second shaft post 212 is smaller than that of the button shaft post 211, and a third shaft post is provided at a certain distance below the second shaft post 212 213. The third shaft column 213 has the same diameter as the second shaft 212 column. The shaft column here may be a cylinder, a cross-shaped column, or a cylinder of other shapes. The second shaft column 212 and the third shaft column 213 are provided with a spring 22; a platform 214 is connected below the third shaft column 213, and the lower end of the spring 22 is pressed against the platform 214; the guide structure 20 is a laterally arranged hole In the sheet body 201, the side of the perforated sheet body 201 is connected to the button shaft post 211, and the pull cord 3 passes through the hole of the perforated sheet body. When in use, press the button shaft column. When the button shaft column moves up and down, the perforated sheet body is driven to move up and down. Since the pull cord has penetrated into the small piece with holes, the draw cord can move up and down with the guide structure, which is more accurate and convenient. It is wound on a rotating table with different diameters, and the spring plays a reset role, and rebounds and resets when the button shaft is released.

As shown in FIG. 9, it is similar to the structure of FIGS. 8a-8c, and is also a push-button spring return solution. The control part 21 includes a button shaft column 211, the shaft shaft column 211 is coaxially sleeved with a duct groove column 30, a thin shaft column 215 is connected below the button shaft column 211, and the thin shaft column 215 is sleeved with a spring 22, the spring 22 presses upward Abut the button shaft column 211, and press the bottom against the inner bottom platform 214 of the catheter groove column 30; the guiding structure 20 is a horizontally arranged perforated sheet body 201, and one side of the perforated sheet body 201 is connected to the thin shaft column 215, The drawstring 3 passes through the hole of the perforated sheet body 201. When in use, press the button shaft column. When the button shaft column moves up and down, the perforated sheet body is driven to move up and down. Since the drawstring has penetrated into the small piece with holes, the drawstring can move up and down along with the guide structure. It is more accurately and conveniently wound on the rotating tables with different diameters, and the spring plays the role of resetting, rebounding and resetting when the button shaft is released. The shape of the small piece with holes here can be arbitrarily set according to requirements, and the drawing rope can also be guided in other ways, such as a slit, an open card slot, and the like.

As shown in Figures 10a-10c, it is a button scheme for shaft column locking. The control unit 21 is a button structure of a ballpoint pen, and uses the corresponding structure of a button-type ballpoint pen as the structure of the control unit. It includes a button shaft column 211, the button shaft column 211 is coaxially provided with a duct groove column 30 with a serration at the bottom, and the button shaft column 211 is provided with a spring 22 for resetting purposes, and a movable column 216 that moves up and down through a spring 22 is connected below; The guiding structure 20 is a perforated sheet body 201 disposed laterally. The perforated sheet body 201 is connected to the movable post 216 on one side, and the pull cord 3 passes through the hole of the perforated sheet body 201. In this embodiment, the common locking structure on the ball pen is used as the structure of the control unit. One press locks and then unlocks, and drives the guide structure to move up and down, and the drawstring can move up and down with the guide structure, which is more accurate and convenient. Is wound onto a rotating table with different diameters.

As shown in Figure 11a-11c, it is a knob resetting scheme. The control part 21 includes a knob shaft post 217, a knob above the knob shaft post 217, a shaft post cylinder 218 connected below the knob, a first guide structure 219 is provided on the outside of the shaft post cylinder 218, and an outer sleeve of the shaft post cylinder 218 is provided The catheter groove column 30 has a second guide structure (not shown in the figure) matching the first guide structure 219 on the inner side of the catheter groove column 30, relying on the interaction of the first guide structure 219 and the second guide structure , Rotating the knob shaft column 217 drives the catheter slot column 30 to move up and down; the guide structure 20 is a laterally arranged perforated sheet body 201, the perforated sheet body 201 is connected to the catheter trough column 30 on one side, and the pull cord 3 passes through The hole of the perforated sheet body 201. The first guiding structure 219 may be a screw thread or a sloped convex bone or groove, and the second guiding structure corresponds to a screw thread or a sloped groove or convex bone. When in use, the knob shaft column and the catheter groove column are moved through the matched first guide structure and second guide structure to drive the small piece with holes to move up and down, and the drawstring can move up and down with the guide structure, which is more accurate It can be easily wound onto rotating tables with different diameters. Figure l id shows another type of knob resetting scheme. Its structure is similar to the structure of Figures 11a to 11c above, and will not be repeated here.

In addition, for the above solution with a guide structure, when used as a food processor, as shown in FIGS. 12a-12c, it is preferable to set the shift transmission system on the top of the entire food processor, that is, below the transmission shaft and the food processing The device is connected. The upper part is the outer cover 9. The upper surface of the outer cover 9 is provided with a through hole 91 to expose the guide structure. In this figure, the knob of the knob shaft is exposed. It is more hygienic and beautiful. It can press the top cover with one hand to pull the rope while using it, which is more ergonomic.

In summary, the present invention provides a brand-new non-electric pull-type shift transmission system, and can be used as a core structure to make various food cooking machines. Its structure is simple. Through simple up and down movements, The corresponding rotation gear can be changed, and there is no need to stop to replace the device or interrupt the pulling operation during use, which is more convenient to use.

Claims

1. A pull-type shift transmission system, characterized in that it includes a pulling mechanism, and the pulling mechanism includes at least one coaxial column, and the coaxial column is composed of connections of rotating tables with different diameters. The connecting plane is the interface;

The pulling mechanism is provided with a binding rope, and the binding rope is disposed on the side of the pulling mechanism. One end of the pulling rope is connected to the pulling mechanism through the binding rope and is wrapped around the rotating table; the pulling mechanism is connected with a rebound mechanism that provides resilience , Used to retract the drawstring after the drawstring is pulled out.

2. The pull-type shift transmission system according to claim 1, wherein the coaxial column is composed of two rotating tables with different diameters.

3. The pull-type shift transmission system according to claim 1, wherein the engaging surface extends outwardly with a protruding portion protruding outward.

4. The pull-type shift transmission system according to claim 1, wherein the binding rope is close to the engaging surface and located above or below the engaging surface.

5. The pull-type shift transmission system according to claim 4, wherein the binding rope is a structure penetrating through the rotating table, and the drawing rope extends outward from the rotating table.

6. The pull-type shift transmission system according to claim 1, wherein the rebound mechanism is a set of coil springs, which are disposed above or below the pull mechanism.

7. The pull-type shift transmission system according to claim 1, wherein the shift transmission system is further provided with a guide structure, the guide structure including a limit portion for the pull rope to pass through and limit, and A control part that controls the up and down movement of the limiter, the pull rope passes through the limiter, and the position of the limiter is controlled by the control unit, thereby controlling the position of the puller.

8. The pull-type shift transmission system according to claim 7, wherein the control unit comprises a button shaft column, a second shaft column is below the button shaft column, and the diameter of the second shaft column is smaller than the button shaft column, A third shaft column is provided at a certain distance below the second shaft column, the third shaft column has the same diameter as the second shaft column, the outer shell of the second shaft column and the third shaft column is provided with a spring; a platform is connected below the third shaft column , The lower end of the spring presses against the platform;

The guide structure is a laterally arranged perforated sheet body, one side of the perforated sheet body is connected to the button shaft column, and a pull cord passes through the hole of the perforated sheet body.

9. The pull-type shift transmission system according to claim 7, wherein the control unit includes a button shaft column, the button shaft column is coaxially sleeved with a catheter groove column, and the button shaft column is connected below Connect to the thin shaft column, the thin shaft column sleeve is provided with a spring, the upper part of the spring is pressed against the lower part of the button shaft column, and the lower part is pressed against the inner bottom platform of the catheter slot column;

The guide structure is a laterally arranged perforated sheet body, one side of the perforated sheet body is connected to a thin shaft column, and a pulling rope passes through the hole of the perforated sheet body.

10. The pull-type shift transmission system according to claim 7, wherein the control part is a button structure of a ball pen, which includes a button shaft post, and the button shaft post is coaxially sleeved with a duct with a serrated bottom The slot column and the button shaft column are sleeved with a spring for resetting purpose, and the movable column that moves up and down is connected through the spring below

The guide structure is a laterally arranged perforated sheet body, one side of the perforated sheet body is connected to the movable column, and a drawstring passes through the hole of the perforated sheet body.

1 1. The pull-type shift transmission system according to claim 7, wherein the control unit comprises a knob shaft column, a knob is above the knob shaft, a shaft cylinder is connected below the knob, and the shaft cylinder is outside The first guide structure is provided, and the outer casing of the shaft column is provided with a catheter slot column, and the inside of the catheter slot column is provided with a second guide structure matching the first guide structure, relying on the first guide structure and the second guide The interaction of the structure, the rotary knob shaft column drives the catheter slot column to move up and down; the guide structure is a laterally arranged perforated sheet body, the one side of the perforated sheet body is connected to the catheter slot column, and the pulling rope passes through the perforated hole Holes in the sheet.

12. The pull-type shift transmission system of claim 11, wherein the first guide structure is a screw thread or a tapered convex bone or groove, and the second guide structure is a screw thread or tape Slanted grooves or convex bones.

13. A food processor, characterized in that it comprises the pull-type shift transmission system according to claim 1-6, the pull mechanism is connected with a transmission mechanism, and the transmission mechanism is connected with a food processing device that operates in a rotating manner.

14. The food processor according to claim 13, further comprising a bottom cover, a rebound mechanism is connected to the center of the bottom cover, the bottom cover is connected to the pulling mechanism, and the pulling mechanism is provided with a cover to cover the pulling mechanism The upper cover includes a top surface located on the top and a side wall located on the side. The lower edge of the side wall is connected to the bottom cover. The side wall of the upper cover is provided with a guide groove for the drawstring to pass through.

15. The food processor according to claim 14, wherein the position of the guide groove is parallel to the place where the rope is tied, the guide groove is a longitudinal guide groove, and the length of the guide groove spans the rotation of different diameters station; The outer end of the pull rope is connected with a handle, and the length of the handle is greater than the length of the longitudinal guide groove.

16. The food processor according to claim 13, wherein the transmission mechanism is a rotating shaft or a transmission shaft connected with a one-way gear, and the upper part of the transmission shaft is connected to the food processing device through the top surface of the upper cover.

17. A food processor, characterized in that it comprises a pull-type shift transmission system according to claims 7-12, the pull mechanism is connected with a transmission mechanism, and the transmission mechanism is connected with a food processing device operating in a rotating manner; The transmission mechanism is a rotating shaft or a transmission shaft connected with a one-way gear. The lower part of the transmission shaft is connected to the food processing device, and the upper part is the outer cover. The upper surface of the outer cover is provided with through holes to expose the guide structure.