Safety protection structure of food processor

Abstract

A safety protection structure of a food processor comprises a cup body, a rotary blade, a cup cover and a main machine, and is characterized in that the main machine comprises a shell, a motor, a switch connecting rod, a button and a microswitch, the switch connecting rod is arranged on the shell and can ascend and descend, and the trigger rib is formed at the bottom end of the switch connecting rod; the microswitch is arranged at the upper end of the switch connecting rod and can ascend and descend along with the switch connecting rod, the microswitch is located below the button, and the microswitch is in linkage with the motor. The microswitch is arranged on the switch support, two parts of the switch support and a connecting rod spring are omitted, the safety protection function can still be completed, installation and maintenance become more convenient and faster, and meanwhile the material cost of products and the labor cost of assembly are saved.

Description

Technical Field

[0001] The utility model relates to a food processing device, in particular to a food processing machine with a safety protection structure. Background Art

[0002] In order to ensure safety, existing food processing machines (such as meat grinders and blenders) are often equipped with safety protection structures to prevent operators from being injured. Figure 1 , Figure 2 and 3 As shown, it is an existing food processor, which includes a cup body 2a, a cup cover 21a, a rotating blade 22a and a main unit 1a. The rotating blade 22a is placed in the cup body 2a and has a central axis; the cup cover 21a is openably and closably arranged on the port of the cup body 2a and has a through hole for the upper end of the central axis to extend out, and the upper end surface of the cup cover 21a has a convex rib 23a; the main unit 1a is detachably arranged on the cup cover 21a, and the main unit 1a includes a housing, a motor 4a, a switch connecting rod 5a, a switch bracket 6a, a button 3a and a micro switch 7a. The motor 4a is arranged in the housing and is powered The output end can be connected to the central axis; the switch bracket 6a is arranged on one side of the motor 4a and can be raised and lowered, and the bottom end of the switch connecting rod 5a forms a trigger rib 61a; the micro switch 7a is arranged on the switch bracket 6a and can be raised and lowered with the switch bracket 6a, and the micro switch 7a can be linked with the motor 4a; the switch connecting rod 5a is arranged on one side of the motor 4a and can be raised and lowered, the upper end of the switch connecting rod 5a is located below the button 3a, the lower end of the switch connecting rod 5a can be telescopically arranged on the switch bracket 6a and is sleeved with a connecting rod spring 52a, and the button 3a is arranged on the upper end of the housing through the key spring 31a. There are two groups of switch connecting rod 5a, switch bracket 6a, button 3a and micro switch 7a, which respectively realize high-speed and low-speed control.

[0003] Working principle:

[0004] When the main unit 1a is in an independent state, the switch bracket 6a always maintains a downward movement trend under the action of the connecting rod spring 52a, and the trigger rib 61a extends; at this time, the button 3a is pressed, and the button 3a drives the switch connecting rod 5a to move downward. The bottom end of the switch connecting rod 5a cannot touch the touch piece 71a of the microswitch 7a. The microswitch 7a is in a closed state, the motor 4a is not powered, and the rotating blade 22a does not work.

[0005] When the main unit 1a is adapted to the cup cover 21a, the trigger rib 61a is lifted upward by the convex rib 23a, and the switch bracket 6a drives the microswitch 7a to lift. At this time, the button 3a is pressed, and the button 3a drives the switch connecting rod 5a to move downward. Since the microswitch 7a rises a certain distance, the bottom end 51a of the switch connecting rod 5a can touch the touch piece 71a of the microswitch 7a, and the microswitch 7a is in the on state. The motor 4a is energized, and the rotating blade 22a rotates rapidly to crush the food.

[0006] Although the above structure can achieve the function of safety protection, it has the disadvantages of complex structure, cumbersome installation and high production cost. Therefore, it needs to be improved. Utility Model Content

[0007] The first technical problem to be solved by the present invention is to provide a food processing machine safety protection structure in view of the above technical status.

[0008] The second technical problem to be solved by the present invention is to provide a food processing machine safety protection structure with fewer parts, convenient assembly and lower cost in view of the above technical status quo.

[0009] The utility model solves the above-mentioned first and second technical problems by adopting the following technical solutions: a food processing machine safety protection structure, comprising:

[0010] Cup body;

[0011] A rotating blade is placed in the cup body and has a central axis;

[0012] A cup cover, which is openably and closably disposed on the port of the cup body and has a through hole for the upper end of the central axis to extend out, and the upper end surface of the cup cover has convex ribs; and

[0013] A main unit is detachably mounted on the cup cover and can drive the central axis to rotate. The main unit has a trigger rib that cooperates with the convex rib;

[0014] It is characterized in that the host comprises

[0015] case;

[0016] A motor, which is arranged in the aforementioned housing and has a power output end that can be connected to the aforementioned central shaft;

[0017] A switch connecting rod is provided on the aforementioned housing and can be raised and lowered, and the bottom end of the switch connecting rod forms the aforementioned trigger rib;

[0018] A button, disposed on the housing; and

[0019] A micro switch is provided at the upper end of the switch connecting rod and can be raised and lowered with the switch connecting rod. The micro switch is located below the button and is linked to the motor.

[0020] When the host is detached from the cup cover, the trigger rib extends downward. After pressing the button, there is a gap between the bottom surface of the button and the contact piece of the micro switch, and the micro switch cannot be triggered, and the motor does not start;

[0021] When the host is fitted on the cup cover, the trigger ribs abut against the convex ribs, the switch connecting rod rises, and after pressing the button, the bottom surface of the button squeezes the touch piece of the micro switch to trigger the micro switch, and the motor starts.

[0022] The switch connecting rod is provided with a first spring, and the first spring always forces the switch connecting rod to maintain a state of extending downward. Further, the upper end of the first spring abuts against the lower end surface of the button.

[0023] Preferably, the shell includes a lower shell and an upper shell arranged at a port of the lower shell, the button is movably arranged on the upper end surface of the upper shell, the motor is arranged in the lower shell, the switch connecting rod is located in the lower shell and the upper end can extend upward from the adapter hole of the upper shell.

[0024] Furthermore, a second spring is provided in the inner cavity of the upper shell, and the top end of the second spring abuts against the lower end surface of the button.

[0025] Preferably, there are two second springs, which are arranged in an equilateral triangle with the first spring.

[0026] The assembly structure of the button and the upper shell is preferably arranged as follows: a clamping portion is protruded from the lower end surface of the button, and correspondingly, the upper shell has a clamping hole for the clamping portion to clamp and guide the engagement.

[0027] The state structure of the switch connecting rod and the micro switch is preferably arranged as follows: the upper end of the switch connecting rod has a positioning column, and buckle parts for clamping the two sides of the micro switch are formed on both sides of the positioning column. Correspondingly, the micro switch has a positioning hole that cooperates with the aforementioned positioning column.

[0028] Preferably, the bottom of the shell has a groove adapted to the convex rib, and the trigger rib is located in the groove.

[0029] Compared with the prior art, the advantages of the present invention are: by setting the micro switch on the switch bracket, the two parts of the switch bracket and the connecting rod spring are omitted, and the function of safety protection can still be achieved, and the installation and maintenance become more convenient and quick, while saving product material costs and assembly labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of a food processing machine in the prior art.

[0031] Figure 2 for Figure 1 Exploded diagram of .

[0032] Figure 3 It is an enlarged structural schematic diagram of the host in the prior art (the casing is hidden).

[0033] Figure 4 It is a schematic diagram of the structure of an embodiment.

[0034] Figure 5 for Figure 4 Exploded diagram of .

[0035] Figure 6 It is a schematic diagram of the enlarged structure of the host in the embodiment.

[0036] Figure 7 for Figure 6 Schematic diagram of the structure from another perspective.

[0037] Figure 8 This is an enlarged view of the combination of the micro switch and the switch connecting rod.

[0038] Fig. 9 for Figure 8 Exploded diagram of .

[0039] Fig.10 Schematic diagram of the independent state of the host in the embodiment.

[0040] Fig.11 It is a schematic diagram of a button pressed in the independent state of the host in the embodiment.

[0041] Fig.12 It is a schematic diagram of the state after the host of the embodiment is assembled to the cup cover.

[0042] Fig.13 This is a schematic diagram of the embodiment when the main unit is assembled to the cup cover and the button is pressed. DETAILED DESCRIPTION

[0043] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0044] like Figure 4 and Figure 5 As shown, the food processor safety protection structure in this embodiment includes a cup body 2, a rotating blade 22, a cup cover 21 and a main unit 1. The rotating blade 22 is placed in the cup body 2 and has a central axis 221; the cup cover 21 is openably and closably arranged on the port of the cup body 2 and has a through hole 24 for the upper end of the central axis 221 to extend out, and the upper end surface of the cup cover 21 has four convex ribs 23; the main unit 1 is detachably arranged on the cup cover 21 and can drive the central axis 221 to rotate.

[0045] Combination Figure 6 and Figure 7 As shown, the host 1 in this embodiment includes a housing 10 , a motor 5 , a switch connecting rod 3 , a button 13 and a micro switch 4 .

[0046] The housing 10 includes a lower housing 11 and an upper housing 12 disposed at the end of the lower housing 11. The bottom of the lower housing 11 has a groove 111 adapted to the rib 23. The button 13 is elastically disposed on the upper end surface of the upper housing 12 through a second spring 62. The motor 5 is disposed in the lower housing 11 and the power output end can be connected to the central axis 221.

[0047] The switch link 3 is located in the lower shell 11 and the upper end can extend upward from the adapter hole 121 of the upper shell 12. The switch link 3 can be raised and lowered. The bottom end of the switch link 3 forms a trigger rib 31, which is located in one of the grooves 111. The switch link 3 is provided with a first spring 61, which always forces the switch link 3 to remain in a state of extending downward. The upper end of the first spring 61 abuts against the lower end surface of the button 13.

[0048] The micro switch 4 is arranged at the upper end of the switch connecting rod 3 and can be raised and lowered with the switch connecting rod 3. The micro switch 4 is located below the button 13 and is linked to the motor 5. A second spring 62 is arranged in the inner cavity of the upper shell 12, and the top of the second spring 62 abuts against the lower end surface of the button 13. There are two second springs 62 and they are arranged in an equilateral triangle with the first spring 61, that is, the center points of the three springs are connected to form an equilateral triangle.

[0049] The matching structure between the button and the upper shell is as follows: a clamping portion 131 is protruded from the lower end surface of the button 13 , and correspondingly, the upper shell 12 has a clamping hole 122 for the clamping portion 131 to clamp and guide the matching.

[0050] Combination Figure 8 and Fig. 9 As shown, the upper end of the switch connecting rod 3 has a positioning column 33 , and buckle portions 32 for clamping the two sides of the micro switch 4 are formed on both sides of the positioning column 33 . Correspondingly, the micro switch 4 has a positioning hole 42 that is positioned and matched with the positioning column 33 .

[0051] Working principle:

[0052] like Fig.10 As shown, when the main unit 1 is separated from the cup cover 21 , the trigger rib 31 is extended downward by the first spring 61 .

[0053] like Fig.11 As shown, after overcoming the elastic force of the first spring 62 and pressing the button 13, there is a gap between the bottom surface of the button 13 and the contact member 41 of the micro switch 4 and the micro switch 4 cannot be triggered. The motor 5 is not started and the rotating blade 22 does not work.

[0054] like Fig.12 As shown, when the host 1 is adapted to the cup cover 21, the trigger rib 31 abuts against the convex rib 23, and the switch connecting rod 3 overcomes the elastic force of the first spring 61 and drives the micro switch 4 to rise together;

[0055] like Fig.13 As shown, after the button 13 is pressed to overcome the elastic force of the first spring 62, the bottom surface of the button 13 squeezes the contact member 41 of the micro switch 4 to trigger the micro switch 4, and the motor 5 starts. At this time, the rotating blade works to rotate quickly to chop the food.

[0056] By setting the micro switch on the switch bracket, the two parts of the switch bracket and the connecting rod spring are omitted, and the function of safety protection can still be achieved. The installation and maintenance become more convenient and quick, while saving the product material cost and the labor cost of assembly.

Claims

1. A food processing machine safety protection structure, comprising: Cup body (2); A rotating blade (22) is placed in the cup body (2) and has a central axis (221); A cup cover (21) is openably and closably disposed on the end of the cup body (2) and has a through hole (24) through which the upper end of the central axis (221) extends, and a convex rib (23) is provided on the upper end surface of the cup cover (21); and A main machine (1) is detachably mounted on the cup cover (21) and is capable of driving the central axis (221) to rotate. The main machine (1) is provided with a trigger rib (31) that cooperates with the convex rib (23); It is characterized in that the host (1) comprises Housing (10); A motor (5) is disposed in the housing (10) and has a power output end that can be connected to the central shaft (221); A switch connecting rod (3) is arranged on the aforementioned housing (10) and can be raised and lowered, and the bottom end of the switch connecting rod (3) forms the aforementioned trigger rib (31); A button (13) is provided on the housing (10); and A micro switch (4) is arranged at the upper end of the switch connecting rod (3) and can be raised and lowered along with the switch connecting rod (3). The micro switch (4) is located below the button (13). The micro switch (4) is linked with the motor (5). When the host (1) is separated from the cup cover (21), the trigger rib (31) extends downward, and after the button (13) is pressed, there is a gap between the bottom surface of the button (13) and the contact member (41) of the micro switch (4), so the micro switch (4) cannot be triggered, and the motor (5) is not started; When the host (1) is fitted on the cup cover (21), the trigger rib (31) abuts against the convex rib (23), the switch connecting rod (3) rises, and after the button (13) is pressed, the bottom surface of the button (13) presses the contact member (41) of the micro switch (4), thereby triggering the micro switch (4), and the motor (5) starts.

2. The food processing machine safety protection structure according to claim 1, characterized in that The switch connecting rod (3) is provided with a first spring (61), and the first spring (61) always forces the switch connecting rod (3) to maintain a state of extending downward.

3. The food processing machine safety protection structure according to claim 2, characterized in that The upper end of the first spring (61) abuts against the lower end surface of the button (13).

4. The food processing machine safety protection structure according to claim 3, characterized in that The housing (10) comprises a lower housing (11) and an upper housing (12) arranged at a port of the lower housing (11); the button (13) is movably arranged on an upper end surface of the upper housing (12); the motor (5) is arranged in the lower housing (11); the switch connecting rod (3) is located in the lower housing (11) and the upper end of the switch connecting rod (3) can extend upward through an adapter hole (121) of the upper housing (12).

5. The food processing machine safety protection structure according to claim 4, characterized in that A second spring (62) is provided in the inner cavity of the upper shell (12), and the top end of the second spring (62) abuts against the lower end surface of the button (13).

6. The food processing machine safety protection structure according to claim 5, characterized in that There are two second springs (62) arranged in an equilateral triangle with the first spring (61).

7. The food processing machine safety protection structure according to claim 4, characterized in that The lower end surface of the button (13) is protruded with a clamping portion (131), and correspondingly, the upper shell (12) has a clamping hole (122) for clamping and guiding the clamping portion (131).

8. The food processing machine safety protection structure according to claim 1, characterized in that The switch connecting rod (3) has a positioning column (33) at its upper end, and buckle portions (32) for clamping the micro switch (4) are formed on both sides of the positioning column (33). Correspondingly, the micro switch (4) has a positioning hole (42) that is positioned and matched with the positioning column (33).

9. The food processing machine safety protection structure according to claim 1, characterized in that The bottom of the housing (10) has a groove (111) adapted to the convex rib (23), and the trigger rib (31) is located in the groove (111).

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