CN218826790U

CN218826790U - Rotary switch structure of food processor

Info

Publication number: CN218826790U
Application number: CN202223297108.0U
Authority: CN
Inventors: 何剑波
Original assignee: Foshan Shunde Tuo Wei Electric Appliance Technology Co ltd
Current assignee: Foshan Shunde Tuo Wei Electric Appliance Technology Co ltd
Priority date: 2022-12-07
Filing date: 2022-12-07
Publication date: 2023-04-07
Anticipated expiration: 2032-12-07

Abstract

The utility model discloses a rotary switch structure of a food processor, which comprises a main machine, a knob and a switch, and is characterized by further comprising a switch bracket, wherein a casing of the main machine is provided with an assembly hole, the switch bracket is fixed at the position, close to the assembly hole, of the inner cavity of the casing, the switch bracket is fixed at the rear part of the switch bracket, at least one part of the front part of the switch bracket is just opposite to the assembly hole, a rotating shaft of the switch extends out of the front part from the rear part of the switch bracket, and the knob is connected on the rotating shaft and extends out of the assembly hole; this kind of food processor's rotary switch structure through addding the switch support, fixes the knob on the switch support together with the switch for knob, switch and switch support form an organic whole rotary switch structure, and the user installs above-mentioned rotary switch structure in the host computer, can adorn the rotary switch structure wholly earlier outside the host computer, fixes into the host computer again, and whole installation is simple and easy, has made things convenient for user's the operation of installing and removing.

Description

Rotary switch structure of food processor

Technical Field

The utility model relates to a food processor technical field specifically is a rotary switch structure of food processor.

Background

Existing food processors; see the chinese utility model patent application No.: 202121867774.6, title: switch module of stock machine, patent application date: on the 10 th 8 th 2021, the applicant is a legal representative of the applicant, as shown in fig. 9 to 12, the device comprises a switch 1 and a knob 2, wherein the switch 1 is provided with an adjusting shaft 11, and the device is characterized by further comprising a switch base 3 and a knob base 4, wherein the knob base 4 is rotatably mounted on the switch base 3, the switch 1 is fixed on the switch base 3, the adjusting shaft 11 of the switch 1 extends to the switch base 3 and is fixedly connected with the switch base 3, and the knob 2 is fixed on the knob base 4; this kind of stock machine, knob 2 and knob seat 4 are installed on switch seat 3 with rotatable mode together to make the knob pass through the adjustment shaft rotation that knob seat 4 drove the switch, owing to add switch seat 3, make switch seat 3 can regard as the carrier fixed with stock machine host 108, and knob seat 4 and switch seat 3's cooperation makes knob 2 and knob seat 4 difficult following switch seat 3 again deviate from, promptly: the knob 2 and the knob seat 4 are not easy to be separated, and the switch seat 3 is used as a carrier fixedly connected with the main juicer body 108, so that the switch component is easier to install and firmer to connect.

However, the switch assembly of the juice machine with the structure still has the following defects: (1) The switch component is installed on the main juicer unit 108, the switch 1 is fixed in the inner cavity of the main juicer unit 108, the adjusting shaft 11 extends out of a round hole (namely, an assembling hole) of the main juicer unit 108 from inside to outside, then the switch base 3 is clamped on the edge of the inner side of the round hole of the main juicer unit 108 from the outside of the main juicer unit 108 through the switch base clamping hook 331, the outer end of the adjusting shaft 11 penetrates through the through hole of the switch base 3, and finally the adjusting shaft 11 is screwed and fixed at the outer end of the adjusting shaft 11 through the nut 6, so that the switch 1 and the switch base 3 are fixed together, and the whole installation process has multiple steps and is complicated; (2) The nearly circular switch base 3 is clamped on the edge of the round hole of the main juicer host 108 through the switch base clamping hook 331, and the nearly circular switch base 3 is easy to rotate, so that the installation of the switch base 3 is not firm, and the normal work of the switch base 3 and the switch 1 is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art, and provides a rotary switch structure of a food processor, which is simple to install and firm in connection.

The purpose of the utility model is realized like this:

a rotary switch structure of a food processor comprises a host, a knob and a switch, and is characterized by further comprising a switch bracket, wherein an assembly hole is formed in a shell of the host, the switch bracket is fixed beside the position, close to the assembly hole, of an inner cavity of the shell, the switch bracket is fixed at the rear part of the switch bracket, at least one part of the front part of the switch bracket is just opposite to the assembly hole, a rotary shaft of the switch extends out of the front part from the rear part of the switch bracket, and the knob is connected to the rotary shaft and extends out of the assembly hole; this kind of food processor's rotary switch structure, through addding the switch support, fix the knob on the switch support together with the switch, make the knob, switch and switch support form an organic whole rotary switch structure, the user is with above-mentioned rotary switch structure installation when the host computer, can be in the host computer good rotary switch structure of pre-installation earlier wholly, fix again in the host computer, whole installation is simple and easy, the operation of installing and removing of user has been made things convenient for, again, the inner chamber of casing is favorable to providing more connection carriers for holistic rotary switch structure, make the connection of rotary switch structure on the inner chamber more firm stable.

The purpose of the utility model can also adopt the following technical measures to solve:

furthermore, a shaft sleeve is arranged on the switch bracket, a shaft hole is formed in the shaft sleeve, a fixing shaft is arranged in the inner cavity of the shell and penetrates through the shaft hole; the shaft hole on the shaft sleeve is matched with the fixed shaft in the inner cavity of the shell, so that the switch bracket is positioned and fixed in the inner cavity of the shell, and the switch bracket is convenient to assemble and disassemble.

Furthermore, a fixed shaft extends downwards from the upper part of the inner cavity of the shell corresponding to the position of the shaft hole, a fixed shaft seat is arranged at the lower part of the inner cavity of the shell corresponding to the position of the fixed shaft, a counter bore is formed in the fixed shaft seat, the fixed shaft downwards passes through the shaft hole in the shaft sleeve and is inserted into the counter bore, and the shaft sleeve abuts against the fixed shaft seat; the shaft sleeve is fixed between the fixing shaft and the counter bore of the fixing shaft seat, and the fixing mode has good fixing effect and simple and convenient operation.

Furthermore, the shell comprises an upper shell and a lower shell, the upper shell and the lower shell are respectively provided with an upper inner cavity and a lower inner cavity, the upper shell is connected with the lower shell, the upper inner cavity is communicated with the lower inner cavity to jointly form an inner cavity of the shell, the assembly hole is formed in the side wall of the upper shell communicated with the upper inner cavity, the fixing shaft is arranged in the upper inner cavity, the fixing shaft seat is arranged in the lower inner cavity, the switch bracket is attached to the side wall of the upper inner cavity where the assembly hole is located, and the upper part and the lower part of the switch bracket are respectively abutted against the upper shell and the lower shell; the upper shell and the lower shell respectively limit the upper part and the lower part of the switch support, so that the switch support is stably limited between the upper shell and the lower shell, and meanwhile, the switch support can be installed in a mode of aligning to the position of the assembling hole.

Furthermore, an upper limit convex rib is arranged beside the fixing shaft on the side wall of the upper inner cavity, a bayonet is arranged at the top of the switch bracket, a lower limit convex part is arranged beside the fixing shaft seat of the lower inner cavity, the bayonet at the top of the switch bracket is clamped on the upper limit convex rib, and the lower part of the switch bracket is abutted against the lower limit convex part, so that the upper part and the lower part of the switch bracket are abutted against the upper shell and the lower shell respectively; the upper limit convex rib is matched with a bayonet of the switch bracket, and the lower limit convex part is matched with the lower limit convex part, so that the two limit matching structures are simple and easy to realize.

Furthermore, the lower part of the switch bracket is provided with a left shaft sleeve and a right shaft sleeve respectively, the upper inner cavity of the upper shell is provided with two fixing shafts which are parallel to each other and vertically extend downwards corresponding to the two shaft sleeves respectively, the upper limiting convex rib is arranged between the two fixing shafts, the lower inner cavity of the lower shell is provided with two fixing shaft seats corresponding to the two fixing shaft positions, and the lower limiting convex part is arranged between the two fixing shaft seats respectively; so that go up between spacing protruding muscle and two fixed axles, limit convex part and two fixed axle beds down between the structure compacter, the cooperation is inseparabler for the installation of switch support in the casing is more simple and convenient, and again, two axle sleeves can make the switch support more firm in the installation.

The switch support is arranged on the rear portion of the switch support, and a rotating shaft of the switch penetrates through the switch waterproof piece and the switch support; the switch waterproof part can play fine sealed effect, avoids outside water, vapour to influence and fixes the switch at switch support rear portion, guarantees the steady operation of switch.

Further, the switch waterproof part is a round part made of rubber materials, and a small hole for the rotating shaft of the switch to pass through is formed in the center of the switch waterproof part; the waterproof switch piece made of the rubber material is good in waterproof effect and low in manufacturing cost, and meanwhile, the small hole in the center of the waterproof switch piece can ensure that the switch is not affected by the waterproof switch piece and works stably.

Further, the knob comprises a knob cover, a decoration ring and a knob seat, the knob cover is connected with the knob seat in a buckling mode, the decoration ring is clamped between the knob cover and the knob seat, and the knob seat is connected with the rotating shaft of the switch in a rotatable mode; knob accessible knob seat drives the regulating spindle rotation of switch, and the knob seat is firm in connection with the rotation axis of switch, promptly: the knob seat has good transmission effect, so that the knob can stably drive the rotating shaft of the switch to rotate.

The switch comprises a switch support, a rotating shaft, a fixing nut and a switch seat, wherein the rotating shaft of the switch comprises a coarse threaded shaft rear section and a small rotating shaft front section from inside to outside; the rear section of the coarse thread shaft is in threaded connection with the fixing nut so that the switch can be stably fixed at the rear part of the switch bracket, and the front section of the small rotating shaft penetrates through the through hole and the fixing nut and then is connected with the knob seat so that the rotating shaft can be driven to rotate by the knob seat, and the normal work of the switch is ensured.

Furthermore, an arc-shaped knob sliding groove is formed in the switch support, a groove is formed in one side edge of the knob sliding groove, so that one side edge of the knob sliding groove is elastic, a sliding arm extends out of the knob, an anti-drop hook is arranged at the outer end of the sliding arm, and the outer end of the sliding arm penetrates through the knob sliding groove, so that the knob is connected with the switch support in a rotatable mode; the elastic knob sliding groove enables the knob to be stably connected to the knob sliding groove and then matched with the anti-disengaging hook on the sliding arm, so that the knob can be more stably connected to the switch support and is not easy to fall off.

The utility model has the advantages as follows:

(1) This kind of rotary switch structure of food processor, through addding the switch support, fix the knob on the switch support together with the switch, make knob, switch and switch support form an organic whole rotary switch structure, when the user installs above-mentioned rotary switch structure at the host computer, can be in the host computer preinstalled rotary switch structure earlier wholly, fix again in the host computer, whole installation is simple and easy, the operation of installing and removing of user has been made things convenient for, moreover, the inner chamber of casing is favorable to providing more connection carriers for holistic rotary switch structure, make the connection of rotary switch structure on the inner chamber more firm stable.

(2) The upper shell and the lower shell respectively limit the upper part and the lower part of the switch bracket, so that the switch bracket is stably limited between the upper shell and the lower shell, and meanwhile, the switch bracket can be installed in a manner of aligning to the position of the assembling hole.

(3) The switch waterproof part can play fine sealed effect, avoids outside water, vapour to influence and fixes the switch at switch support rear portion, guarantees the steady operation of switch.

Drawings

Fig. 1 is a sectional view of the host of the utility model.

Fig. 2 is a perspective view of the switch bracket of the present invention.

Fig. 3 is a disassembled view of the switch bracket and the switch of the present invention.

Fig. 4 is a disassembled view of the housing of the present invention.

Fig. 5 is a perspective view of the lower case of the present invention.

Fig. 6 is a perspective view of the upper case of the present invention.

Fig. 7 is a schematic view of the switch bracket mounted to the upper case.

Fig. 8 is a disassembled view of the knob of the present invention.

Fig. 9 is a perspective view of a switch assembly of a prior art juicer.

Fig. 10 is a disassembled schematic view of fig. 9.

Fig. 11 is a schematic exploded view from another angle of fig. 9.

Fig. 12 is a cross-sectional view of a prior art switch assembly mounted on a juicer host.

Detailed Description

In the embodiment, as shown in fig. 1 to 8, a rotary switch structure of a food processor comprises a main body 61, a knob 62 and a switch 63, and is characterized by further comprising a switch bracket 64, wherein a housing 65 of the main body 61 is provided with an assembly hole 651, the switch bracket 64 is fixed beside the position of the inner cavity of the housing 65 close to the assembly hole 651, the switch 63 is fixed at the rear part of the switch bracket 64, at least one part of the front part of the switch 63 is opposite to the assembly hole 651, a rotary shaft 631 of the switch 63 extends out of the front part from the rear part of the switch bracket 64, and the knob 62 is connected to the rotary shaft 631 and extends out of the assembly hole 651.

Specifically, the switch bracket 64 is provided with a bushing 641, the bushing 641 is provided with a shaft hole 642, a fixed shaft 652 is provided in the inner cavity of the housing 65, and the fixed shaft 652 penetrates through the shaft hole 642.

In this embodiment, a fixed shaft 652 extends downward from a position of the upper portion of the inner cavity of the housing 65 corresponding to the shaft hole 642, a fixed shaft seat 653 is disposed at a position of the lower portion of the inner cavity of the housing 65 corresponding to the fixed shaft 652, a counter bore 654 is formed on the fixed shaft seat 653, the fixed shaft 652 penetrates downward through the shaft hole 642 of the shaft sleeve 641 and is inserted into the counter bore 654, and the shaft sleeve 641 abuts against the fixed shaft seat 653.

More specifically, the housing 65 includes an upper shell 655 and a lower shell 656, the upper shell 655 and the lower shell 656 are respectively provided with an upper inner cavity 6551 and a lower inner cavity 6561, the upper shell 655 is connected with the lower shell 656, the upper inner cavity 6551 is communicated with the lower inner cavity 6561 to jointly form an inner cavity of the housing 65, the assembly hole 651 is arranged on a side wall of the upper shell 655 communicated with the upper inner cavity 6551, the fixing shaft 652 is arranged on the upper inner cavity 6551, the fixing shaft base is arranged on the lower inner cavity 6561, the switch bracket 64 is attached to a side wall of the upper inner cavity 6551 where the assembly hole 651 is located, and the upper part and the lower part of the switch bracket 64 are respectively abutted against the upper shell 655 and the lower shell 656.

In this embodiment, an upper limit convex rib 6552 is further disposed beside the fixing shaft 652 on the side wall of the upper inner cavity 6551, a bayonet 643 is disposed at the top of the switch bracket 64, a lower limit convex 6562 is further disposed beside the fixing shaft seat 653 of the lower inner cavity 6561, the bayonet 643 at the top of the switch bracket 64 is clamped on the upper limit convex rib 6552, and the lower portion of the switch bracket 64 abuts against the lower limit convex portion 6562, so that the upper portion and the lower portion of the switch bracket 64 abut against the upper shell 655 and the lower shell 656 respectively.

In this embodiment, the lower portion of the switch bracket 64 is provided with a left shaft sleeve 641 and a right shaft sleeve 641, the upper inner cavity 6551 of the upper shell 655 is provided with two fixing shafts 652 which are parallel to each other and vertically extend downwards corresponding to the two shaft sleeves 641, the upper limit convex rib 6552 is arranged between the two fixing shafts 652, the lower inner cavity 6561 of the lower shell 656 is provided with two fixing shaft seats 653 corresponding to the two fixing shafts 652, and the lower limit convex portion 6562 is arranged between the two fixing shaft seats 653.

As a more preferable embodiment, a switch waterproof member 66 is further included, the switch waterproof member 66 is disposed between the switch 63 and the rear portion of the switch bracket 64, and the rotation shaft 631 of the switch 63 passes through the switch waterproof member 66 and the switch bracket 64; the switch waterproof member 66 is a circular member made of a rubber material, and a small hole 661 through which the rotation shaft 631 of the switch 63 passes is formed in the center of the switch waterproof member 66.

More specifically, the knob 62 includes a knob cover 621, a decoration ring 622, and a knob seat 623, the knob cover 621 is snap-coupled to the knob seat 623, the decoration ring 622 is clamped between the knob cover 621 and the knob seat 623, and the knob seat 623 is rotatably coupled to a rotation shaft 631 of the switch 63.

In this embodiment, the switch 63 further includes a fixing nut 67, the rotating shaft 631 of the switch 63 includes a coarse threaded shaft rear section 6311 and a small rotating shaft front section 6312 from inside to outside, the front portion of the switch bracket 64 is provided with a mounting groove 644, a through hole 645 penetrating through the rear portion is formed at the bottom of the mounting groove 644, the coarse threaded shaft rear section 6311 passes through the through hole 645 of the mounting groove 644 from the rear portion of the switch bracket 64 to the front portion, the fixing nut 67 is located in the mounting groove 644 and screwed on the coarse threaded shaft rear section 6311, and the small rotating shaft front section 6312 is connected with the knob seat 623.

In a preferred embodiment, the switch bracket 64 is provided with an arc-shaped knob sliding groove 646, a groove 647 is provided on one side edge of the knob sliding groove 646 so as to make one side edge of the knob sliding groove 646 elastic, a sliding arm 624 extends from the knob 62, an outer end of the sliding arm 624 is provided as a unhooking prevention, and an outer end of the sliding arm passes through the knob sliding groove 646 so as to make the knob 62 rotatably connected with the switch bracket 64.

The working principle is as follows: when the switch is installed, the switch waterproof member 66 and the switch 63 are installed and fixed at the rear part of the switch bracket 64, then the knob 62 is installed at the front part of the switch bracket 64, so that the knob 62, the switch 63 and the switch bracket 64 form an integrated rotary switch structure, then the fixing shaft 652 of the upper shell 655 is downwards inserted into the shaft hole 642 of the shaft sleeve 641 of the switch bracket 64 and the counter hole 654 of the fixing shaft seat 653 of the lower shell 656, and the shaft sleeve 641 is abutted against the fixing shaft seat 653, so that the integrated rotary switch structure is installed in the shell 65 formed by the upper shell 655 and the lower shell 656.

The following is a description of the switch assembly of a prior art juicer:

as shown in fig. 9 to 12, a switch assembly of a juice extractor comprises a switch 1 and a knob 2, wherein the switch 1 is provided with an adjusting shaft 11, and is characterized by further comprising a switch base 3 and a knob base 4, the knob base 4 is rotatably mounted on the switch base 3, the switch 1 is fixed on the switch base 3, the adjusting shaft 11 of the switch 1 extends to the switch base 3 and is fixedly connected with the switch base 3, and the knob 2 is fixed on the knob base 4; the front end surface of the switch base 3 is provided with a round hole 31, the knob base 4 extends backwards to form a slide arm 41, and the slide arm 41 passes through the round hole 31 on the switch base 3 and is in sliding contact with the inner edge of the round hole 31.

More specifically, the slide arm 41 is a barb which passes through the circular hole 31 of the switch base 3, and the barb hooks the inner edge of the circular hole 31 in a slidable manner. The rear end face of the switch base 3 is provided with a mounting hole 5, the front end face of the switch 1 is provided with a fixing boss 12, the adjusting shaft 11 extends out of the fixing boss 12, the front end face of the switch 1 is tightly attached to the rear end face of the switch base 3, the fixing boss 12 and the adjusting shaft 11 penetrate through the mounting hole 5, and the fixing boss 12 is fastened in the mounting hole 5 through a nut 6 so that the switch 1 and the switch base 3 are fixed together. A position corresponding to the sliding arm 4144 on the rear end surface of the switch base 3 is provided with a limiting hole 7, and the sliding arm 41 extends to the limiting hole 7 and slides on the limiting hole 7. Two sliding arms 41 with symmetrical positions extend backwards from the knob seat 4, and two corresponding limiting holes 7 are formed in the rear end face of the switch seat 3. Switch seat 3 includes mutual integrated into one piece's preceding ring 32 and back boss 34, and preceding terminal surface and the centre bore of preceding ring 32 constitute preceding terminal surface and the round hole 31 of switch seat 3 respectively, and the rear end of preceding ring 32 extends backward has switch seat pothook 331, and the rear end of preceding ring 32 centre bore periphery constitutes the inward flange of round hole 31, back boss 34 constitutes the rear end of switch seat 3, and two feet 322 of back boss 34 are connected at the rear end of preceding ring 32 centre bore both ends, and back boss 34 is opened there is mounting hole 5.

In this embodiment, the knob seat 4 is a circular truncated cone shell, the rear end of the circular truncated cone shell extends out of the slide arm 41, the front end of the circular truncated cone shell protrudes out of the circular hole 31 of the switch seat 3, the periphery of the front end of the circular truncated cone shell is provided with a clamping groove 8, the front end of the circular truncated cone shell also extends out of a clamping block 9, the knob 2 is provided with a corresponding clamping edge 101 and a corresponding clamping hole 102 corresponding to the clamping groove 8 and the clamping block 9, the clamping edge 101 is clamped in the clamping groove 8, and the clamping block 9 is inserted into the clamping hole 102, so that the knob 2 is connected with the knob seat 4. The knob 2 comprises a knob cover 21 and a knob shell 22, a clamping head 210 is arranged on the rear end face of the knob cover 21, a corresponding clamping head hole 220 is formed in the knob shell 22, the clamping edge 101 is arranged on the knob shell 22, the clamping hole 102 is formed in the knob cover 21, and the clamping head 210 on the knob cover 21 is clamped in the clamping head hole 220 of the knob shell 22, so that the knob cover 21 is connected with the knob shell 22. The knob shell 22 is a round cap-shaped shell, the fixture block 9 is arranged on the inner side wall of the round cap-shaped shell, and the clamping groove 8 is arranged on the front end face of the round cap-shaped shell.

The working principle is as follows: the knob 2 is rotated to drive the knob seat 4 to rotate along the switch seat 3, so as to drive the adjusting shaft 11 and realize the adjustment of the switch 1; because the switch base 3 is fixed on the main juicer base 108, the whole switch assembly is firmly installed on the main juicer base, and the knob 2 and the knob base 4 are combined together and installed on the switch base 3 through the sliding arm 41 (barb), the knob 2 and the knob base 4 are not easy to be separated from the main juicer base 108.

Claims

1. The utility model provides a food processor's rotary switch structure, includes host computer (61), knob (62) and switch (63), characterized by, still including switch bracket (64), it has pilot hole (651) to open on casing (65) of host computer (61), and the inner chamber of casing (65) is close to pilot hole (651) position other to be fixed with switch bracket (64), and switch (63) are fixed with to the rear portion of switch bracket (64), and at least part of its front is just to pilot hole (651), rotation axis (631) of switch (63) extend the front portion by the rear portion of switch bracket (64), knob (62) are connected on rotation axis (631) and extend outside pilot hole (651).

2. The rotary switch structure of food processor as claimed in claim 1, wherein the switch bracket (64) is provided with a shaft sleeve (641), the shaft sleeve (641) is provided with a shaft hole (642), the inner cavity of the housing (65) is provided with a fixed shaft (652), and the fixed shaft (652) passes through the shaft hole (642).

3. The rotary switch structure of food processor according to claim 2, wherein a fixing shaft (652) extends downwards from the upper part of the inner cavity of the housing (65) corresponding to the shaft hole (642), a fixing shaft seat (653) is arranged at the lower part of the inner cavity of the housing (65) corresponding to the fixing shaft (652), a counter bore (654) is formed on the fixing shaft seat (653), the fixing shaft (652) downwardly passes through the shaft hole (642) of the shaft sleeve (641) and is inserted into the counter bore (654), and the shaft sleeve (641) abuts against the fixing shaft seat (653).

4. The rotary switch structure of the food processor as claimed in claim 3, wherein the casing (65) comprises an upper casing (655) and a lower casing (656), the upper casing (655) and the lower casing (656) are respectively provided with an upper inner cavity (6551) and a lower inner cavity (6561), the upper casing (655) is connected with the lower casing (656), the upper inner cavity (6551) is communicated with the lower inner cavity (6561) to jointly form the inner cavity of the casing (65), the assembly hole (651) is arranged on the side wall of the upper casing (655) communicated with the upper inner cavity (6551), the fixing shaft (652) is arranged on the upper inner cavity (6551), the fixing shaft seat (653) is arranged on the lower inner cavity (6561), the switch bracket (64) is attached to the side wall of the upper inner cavity (6551) where the assembly hole (651) is located, and the upper part and the lower part of the switch bracket (64) are respectively abutted against the upper casing (655) and the lower casing (656).

5. The rotary switch structure of food processor according to claim 4, wherein an upper limit rib (6552) is further provided beside the fixing shaft (652) on the side wall of the upper inner cavity (6551), a bayonet (643) is provided at the top of the switch bracket (64), a lower limit protrusion (6562) is further provided beside the fixing shaft seat (653) of the lower inner cavity (6561), the bayonet (643) at the top of the switch bracket (64) is clamped on the upper limit rib (6552), and the lower part of the switch bracket (64) abuts against the lower limit protrusion (6562), so that the upper part and the lower part of the switch bracket (64) abut against the upper shell (655) and the lower shell (656) respectively.

6. The rotary switch structure of food processor according to claim 5, wherein the lower part of the switch bracket (64) is provided with a left shaft sleeve (641) and a right shaft sleeve (641), the upper inner cavity (6551) of the upper shell (655) is provided with two parallel and downward vertically extending fixing shafts (652) corresponding to the two shaft sleeves (641), the upper limit convex rib (6552) is arranged between the two fixing shafts (652), the lower inner cavity (6561) of the lower shell (656) is provided with two fixing shaft seats (653) corresponding to the two fixing shafts (652), and the lower limit convex part (6562) is arranged between the two fixing shaft seats (653).

7. The rotary switch structure of food processor according to any one of claims 1 to 6, further comprising a switch waterproof member (66), wherein the switch waterproof member (66) is disposed between the switch (63) and the rear portion of the switch bracket (64), and the rotary shaft (631) of the switch (63) passes through the switch waterproof member (66) and the switch bracket (64).

8. The rotary switch structure of food processor as claimed in claim 7, wherein the switch waterproof member (66) is a circular member made of rubber material, and a small hole (661) through which the rotation shaft (631) of the switch (63) passes is formed at the center of the switch waterproof member (66).

9. The rotary switch structure of food processor as claimed in claim 7, wherein the knob (62) comprises a knob cover (621), a decoration ring (622) and a knob seat (623), the knob cover (621) is snap-fit connected with the knob seat (623), the decoration ring (622) is clamped between the knob cover (621) and the knob seat (623), and the knob seat (623) is rotatably connected with the rotary shaft (631) of the switch (63).

10. The rotary switch structure of the food processor as claimed in claim 9, further comprising a fixing nut (67), wherein the rotary shaft (631) of the switch (63) comprises a coarse threaded shaft rear section (6311) and a small rotary shaft front section (6312) from inside to outside, the front portion of the switch bracket (64) is provided with a mounting groove (644), the bottom of the mounting groove (644) is provided with a through hole (645) penetrating through the rear portion, the coarse threaded shaft rear section (6311) penetrates through the through hole (645) of the mounting groove (644) from the rear portion of the switch bracket (64) to the front portion, the fixing nut (67) is located in the mounting groove (644) and screwed on the coarse threaded shaft rear section (6311), and the small rotary shaft front section (6312) is connected with the knob seat (623).

11. The rotary switch structure of food processor as claimed in claim 1, wherein the switch bracket (64) is provided with an arc-shaped knob sliding groove (646), a groove (647) is formed on one side edge of the knob sliding groove (646) to make one side edge of the knob sliding groove (646) have elasticity, a sliding arm (624) extends from the knob (62), the outer end of the sliding arm (624) is configured as a slip-preventing hook, and the outer end of the sliding arm passes through the knob sliding groove (646) to make the knob (62) rotatably connected with the switch bracket (64).