Head-raising locking structure of chef machine

Abstract

The utility model discloses a head-up locking structure of a chef machine, which is characterized by comprising a base, a head-up locking mechanism and a head-up locking mechanism, the machine head is rotationally connected to the base; the elastic reset mechanism is mounted between the machine head and the base and used for driving the machine head to reset on the base; the locking mechanism comprises guide grooves formed in the machine head, and the guide grooves are distributed in the rotating direction of the machine head; a locking shaft is arranged in the guide groove in a penetrating mode and used for guiding and locking rotation of the guide groove. The first end of the locking shaft extends to one side of the guide groove, an annular groove is formed in the periphery of the first end of the locking shaft, the annular groove is provided with a limiting hole penetrating in the radial direction of the locking shaft, the locking structure further comprises a spring cotter pin, a first arm of the spring cotter pin penetrates through the limiting hole, and a second arm of the spring cotter pin abuts against the interior of the annular groove. The locking structure solves the problems that an existing locking structure is poor in stability and inconvenient to mount and dismount.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, and in particular to a head-up locking structure of a food processor. Background Art

[0002] A food processor is a kitchen appliance typically used for mixing, stirring, and whipping ingredients, particularly for making mixtures like dough and cake batter. It's a highly practical and versatile tool in the kitchen, particularly suitable for recipes that require extensive stirring and mixing, such as bread, cake, and cookies. To use a food processor, the machine head must be lifted from the base, a container placed on the base, and then the machine head must be returned to its original position. In existing technology, food processors often incorporate a locking mechanism between the machine head and base to guide and limit the lifting and lowering of the mechanism. This locking mechanism typically includes a rotating shaft.

[0003] Existing rotating shafts are usually fixed by an open retaining spring or a latch retaining spring. However, the open retaining spring fixing method is difficult to install or disassemble and the force-bearing area is small, which causes the body to wear after long-term use and there is a risk of failure after long-term use. When using a latch retaining spring, there is no left or right limit on the rotating shaft for the latch retaining spring, so the retaining spring rotates along the latch hole. When the latch moves left or right, the moving space of the rotating shaft will be compressed, so its use is limited when the product space is small. Utility Model Content

[0004] The main purpose of the utility model is to provide a head-lift locking structure for a food processor, aiming to solve the problems of poor stability and inconvenient installation and disassembly of the existing locking structure.

[0005] To achieve the above-mentioned purpose, the present invention provides a head-lift locking structure for a food processor, comprising:

[0006] base;

[0007] A machine head, rotatably connected to the base;

[0008] An elastic reset mechanism is installed between the handpiece and the base, and is used to drive the handpiece to reset on the base;

[0009] The locking mechanism includes a guide groove provided on the machine head, and the guide groove is arranged along the rotation direction of the machine head; a locking shaft is passed through the guide groove, and the locking shaft is used to guide and lock the rotation of the guide groove; the first end of the locking shaft extends to one side of the guide groove, and the first end of the locking shaft has an annular groove provided along its outer periphery, and the annular groove is provided with a limiting hole radially extending along the locking shaft. The locking structure also includes a spring cotter pin, the first arm of the spring cotter pin is passed through the limiting hole, and the second arm of the spring cotter pin abuts against the annular groove.

[0010] Optionally, the second end of the locking shaft extends to the other side of the guide groove, and a return spring abuts against the second end of the locking shaft and the other side of the guide groove.

[0011] Optionally, a locking hole is provided at each end of the guide groove, and the locking shaft is provided with a sliding portion and a locking portion in sequence along its axial direction;

[0012] The locking shaft is provided with a first position and a second position. When the locking shaft is located at the first position, the sliding portion is plugged into the guide groove, and the machine head is unlocked and rotated; when the locking shaft is located at the second position, the locking portion is plugged into the locking hole, and the machine head is locked.

[0013] Optionally, the inner diameter of the locking hole is larger than the inner diameter of the guide groove; the outer diameter of the locking portion is larger than the outer diameter of the sliding portion;

[0014] The outer diameter of the sliding portion is smaller than or equal to the inner diameter of the guide groove, the outer diameter of the locking portion is larger than the inner diameter of the guide groove, and the outer diameter of the locking portion is smaller than or equal to the inner diameter of the locking hole.

[0015] Optionally, the machine head is symmetrically provided with two rotating plates, and the two rotating plates are symmetrically provided with guide grooves, and the locking shaft passes through the two guide grooves in sequence.

[0016] Optionally, the sliding portion is symmetrically arranged at both ends of the locking portion.

[0017] Optionally, a locking button is provided on the base, and the locking button is connected to the second end of the locking shaft.

[0018] Optionally, the elastic reset mechanism is configured as a torsion spring, one end of the torsion spring is mounted on the machine head, and the other end of the torsion spring abuts against the base.

[0019] Optionally, the spring cotter pin is configured as an R-type cotter pin.

[0020] The beneficial effect of the present invention is that it improves the head-lift locking structure of the existing food processor, opens an annular groove along the outer circumference of the end portion of the locking shaft, and then opens a through limiting hole in the annular groove along the radial direction of the locking shaft. The first end of the spring cotter pin is inserted into the limiting hole, and the other end abuts against the annular groove. While limiting the axial movement of the locking shaft, the spring cotter pin can be stably confined in the annular groove, effectively preventing it from rotating and displacing, thereby ensuring the stability of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0022] Figure 1 This is a schematic diagram of the overall structure of the food processor of the present utility model;

[0023] Figure 2 This is an exploded view of the overall structure of the food processor of the present invention;

[0024] Figure 3 This is a schematic diagram of the locking shaft structure of the utility model;

[0025] Figure 4 This is a schematic diagram of the installation structure between the locking shaft and the spring cotter pin of the utility model;

[0026] Figure 5 This is a schematic diagram of the installation structure between the locking shaft and the guide groove of the utility model;

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

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

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

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

[0031] One embodiment of the present invention provides a head-up locking structure for a food processor, referring to Figure 1 and Figure 2 ,include:

[0032] Base 1;

[0033] The machine head 2 is rotatably connected to the base 1;

[0034] An elastic reset mechanism is installed between the head 2 and the base 1, and is used to drive the head 2 to reset on the base 1;

[0035] The locking mechanism includes a guide groove 411 provided on the machine head 2, the guide groove 411 being arranged along the rotation direction of the machine head 2; a locking shaft 42 is provided in the guide groove 411, the locking shaft 42 is used to guide and lock the rotation of the guide groove 411; the first end of the locking shaft 42 extends to one side of the guide groove 411, Figure 3 and Figure 4 The first end of the locking shaft 42 is provided with an annular groove 421 along its outer circumference, and the annular groove 421 is provided with a limiting hole 422 radially extending through the locking shaft 42. The locking structure also includes a spring cotter pin 43, and the first arm 431 of the spring cotter pin 43 is passed through the limiting hole 422, and the second arm 432 of the spring cotter pin 43 abuts against the annular groove 421.

[0036] It should be noted that this embodiment improves the existing head-up locking structure of the food processor. Specifically, an annular groove 421 is provided at the end of the locking shaft 42 along its outer circumference, and then a through-limiting hole 422 is provided in the annular groove 421 along the radial direction of the locking shaft 42. The first end of the spring cotter pin 43 is inserted into the limiting hole 422, and the other end abuts against the annular groove 421. While limiting the axial movement of the locking shaft 42, the spring cotter pin 43 can be stably confined in the annular groove 421, effectively preventing it from rotating and displacing, thereby ensuring the stability of the structure. Figure 4 , the first arm 431 of the spring cotter pin 43 is passed through the limiting hole 422, and the second arm 432 is stuck in the annular groove 421. In this structure, the second arm 432 of the spring cotter pin 43 is restricted in the annular groove 421 and cannot swing left and right, thereby ensuring the installation stability of the spring cotter pin 43. In addition, in this structure, the installation of the spring cotter pin 43 can be completed by simply inserting the first arm 431 of the spring cotter pin 43 into the limiting hole 422. The structural design is simple, the installation is convenient, and the assembly efficiency is improved. The spring cotter pin 43 can effectively limit the axial movement of the locking shaft 42, preventing it from falling out of the guide groove 411 and affecting normal use. In this embodiment, the spring cotter pin 43 is configured as an R-type cotter pin.

[0037] Furthermore, the second end of the locking shaft 42 extends to the other side of the guide slot 411, and a return spring 44 abuts against the second end of the locking shaft 42 and the other side of the guide slot 411. In this embodiment, the locking shaft 42 needs to move axially during the locking process. By providing a return spring 44 at its end, the locking shaft 42 can be automatically reset through the elastic deformation of the return spring 44.

[0038] Further, refer to Figure 5 , a locking hole 412 is provided at each end of the guide groove 411, and the locking shaft 42 is provided with a sliding portion 423 and a locking portion 424 in sequence along its axial direction;

[0039] The locking shaft 42 is provided with a first position and a second position. When the locking shaft 42 is located at the first position, the sliding portion 423 is plugged into the guide groove 411, and the machine head 2 is unlocked and rotated; when the locking shaft 42 is located at the second position, the locking portion 424 is plugged into the locking hole 412, and the machine head 2 is locked.

[0040] In this embodiment, the inner diameters of the guide groove 411 and the locking hole 412, and the outer diameters of the sliding portion 423 and the locking portion 424 are restricted to achieve switching between the first and second positions of the locking shaft 42. Specifically, the inner diameter of the locking hole 412 is larger than the inner diameter of the guide groove 411; the outer diameter of the locking portion 424 is larger than the outer diameter of the sliding portion 423.

[0041] The outer diameter of the sliding portion 423 is smaller than or equal to the inner diameter of the guide groove 411 , the outer diameter of the locking portion 424 is larger than the inner diameter of the guide groove 411 , and the outer diameter of the locking portion 424 is smaller than or equal to the inner diameter of the locking hole 412 .

[0042] In this embodiment, when the locking shaft 42 switches between the first position and the second position, it is necessary to push the locking shaft 42 to move along its axial direction to achieve its position switching; specifically, in the initial state, the machine head 2 is not lifted and is in a locked state, and the locking portion 424 of the locking shaft 42 is inserted into the locking hole 412 at the top of the guide groove 411. Since the outer diameter of the locking portion 424 is larger than the inner diameter of the guide groove 411, the locking portion 424 will be restricted in the locking hole 412 so that the guide groove 411 cannot slide along the locking shaft 42; when the machine head 2 needs to be lifted, the locking shaft 42 is pressed so that the locking portion 424 slides out of the locking hole 412 axially along the locking shaft 42. At this time, the sliding portion 423 enters the locking hole 412, and the return spring 44 is compressed. Since the outer diameter of the sliding portion 423 is smaller than the inner diameter of the locking hole 412 and the guide groove 411 Diameter, therefore, the machine head 2 is unlocked, and the user can manually lift the machine head 2, and the guide groove 411 slides along the sliding part 423; after the machine head 2 is lifted into place, the sliding part 423 is inserted into the locking hole 412 at the bottom of the guide groove 411. At this time, since the return spring 44 is compressed in the aforementioned process, the locking shaft 42 is always squeezed by the elastic restoring force of the return spring 44, but since the outer diameter of the locking part 424 is larger than the inner diameter of the sliding groove, it cannot be inserted into the guide groove 411. When the sliding part 423 slides to the locking hole 412 at the bottom of the guide groove 411, the outer diameter of the locking part 424 is smaller than the inner diameter of the locking hole 412, so that it slides to the locking hole 412 at the bottom of the guide groove 411 under the elastic restoring force of the return spring 44, and automatically locks the machine head 2. At this time, the machine head 2 is opened and no manual support is required. The complete machine head 2 lifting action; similarly, when the machine head 2 needs to be pressed down, it is only necessary to push the locking shaft 42 again to unlock it, thereby restoring it to its initial state.

[0043] Furthermore, the machine head 2 is symmetrically provided with two rotating plates 21, each of which is symmetrically provided with a guide slot 411. The locking shaft 42 sequentially passes through the two guide slots 411. In this embodiment, by providing two rotating plates 21, a guide slot 411 can be provided on each rotating plate 21. The two guide slots 411 are respectively plugged into the two ends of the locking shaft 42, thereby improving the stability of the structure, ensuring uniform force on the machine head 2, and ensuring stability during the lifting and pressing process of the machine head 2. Furthermore, the sliding portions 423 are symmetrically provided at both ends of the locking portion 424, and are respectively configured to plug into the corresponding guide slots 411 on the two rotating plates 21.

[0044] Furthermore, a locking button 11 is provided on the base 1, and the locking button 11 is connected to the second end of the locking shaft 42. In this embodiment, the locking button 11 is provided on the base 1, and the user can push the locking shaft 42 by pressing the locking button 11, which is easy to operate.

[0045] Furthermore, the elastic reset mechanism is configured as a torsion spring 3, one end of which is mounted on the handpiece 2, and the other end of which abuts against the base 1. In this embodiment, the torsion spring 3 is used as the elastic reset mechanism, which ensures that the handpiece 2 can be normally reset while having a simpler structure, lower cost, and easier installation.

[0046] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by utilizing the contents of the present invention specification and drawings under the utility model concept, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A head-up locking structure for a food processor, characterized in that: include: base; A machine head, rotatably connected to the base; An elastic reset mechanism is installed between the handpiece and the base, and is used to drive the handpiece to reset on the base; The locking mechanism includes a guide groove provided on the machine head, and the guide groove is arranged along the rotation direction of the machine head; a locking shaft is passed through the guide groove, and the locking shaft is used to guide and lock the rotation of the guide groove; the first end of the locking shaft extends to one side of the guide groove, and the first end of the locking shaft has an annular groove provided along its outer periphery, and the annular groove is provided with a limiting hole radially extending along the locking shaft. The locking structure also includes a spring cotter pin, the first arm of the spring cotter pin is passed through the limiting hole, and the second arm of the spring cotter pin abuts against the annular groove.

2. The head-lift locking structure of the food processor according to claim 1, characterized in that: The second end of the locking shaft extends to the other side of the guide groove, and a return spring is abutted between the second end of the locking shaft and the other side of the guide groove.

3. The head-lift locking structure of the food processor according to claim 1, characterized in that: A locking hole is provided at each end of the guide groove, and a sliding portion and a locking portion are sequentially provided along the axial direction of the locking shaft; The locking shaft is provided with a first position and a second position. When the locking shaft is located at the first position, the sliding portion is plugged into the guide groove, and the machine head is unlocked and rotated; when the locking shaft is located at the second position, the locking portion is plugged into the locking hole, and the machine head is locked.

4. The head-lift locking structure of the food processor according to claim 3, characterized in that: The inner diameter of the locking hole is larger than the inner diameter of the guide groove; the outer diameter of the locking portion is larger than the outer diameter of the sliding portion; The outer diameter of the sliding portion is smaller than or equal to the inner diameter of the guide groove, the outer diameter of the locking portion is larger than the inner diameter of the guide groove, and the outer diameter of the locking portion is smaller than or equal to the inner diameter of the locking hole.

5. The head-lift locking structure of the food processor according to claim 4, characterized in that: The machine head is symmetrically provided with two rotating plates, and the two rotating plates are symmetrically provided with guide grooves, and the locking shaft passes through the two guide grooves in sequence.

6. The head-lift locking structure of the food processor according to claim 5, characterized in that: The sliding portion is symmetrically arranged at two ends of the locking portion.

7. The head-lift locking structure of the food processor according to claim 2, characterized in that: A locking button is provided on the base, and the locking button is connected to the second end of the locking shaft.

8. The head-lift locking structure of the food processor according to claim 7, characterized in that: The elastic reset mechanism is configured as a torsion spring, one end of the torsion spring is mounted on the machine head, and the other end of the torsion spring abuts against the base.

9. The head-up locking structure of the food processor according to claim 1, characterized in that: The spring cotter pin is configured as an R-type cotter pin.

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