Mounting assembly for a fork shaft in a frying pan device

Abstract

The utility model relates to the technical field of cooking equipment, and discloses a mounting assembly of a prong shaft in a frying pan device, which comprises a prong shaft seat with an axial channel, the prong shaft is positioned and installed in the axial channel in a freely rotatable manner relative to the prong shaft seat, further comprises a fixing seat installed at the inner bottom of the frying pan of the frying pan device, the lower end of the prong shaft seat passes through the fixing seat and is threadedly connected with a pan shaft installed at the outer bottom of the frying pan, and the fixing seat, the prong shaft seat and the frying pan rotate synchronously. The mounting assembly of the prong shaft in the frying pan device is stable in structure and can keep the prong shaft seat and the pan shaft in a relatively stationary state.

Description

Technical Field

[0001] This utility model relates to the field of cooking utensils, and in particular to a mounting assembly for the fork shaft in a wok device. Background Technology

[0002] Existing smart cooking machines typically include a stirring fork in their wok unit to stir-fry ingredients, mimicking human cooking movements to prepare delicious dishes. However, the driving and installation methods of these stirring forks vary, and improving overall performance while still achieving the stirring function has become a research topic within the industry.

[0003] As disclosed in the utility model patent (title: base for installing a fork assembly in a wok device; application number: 202420635193.7; authorization announcement number: CN222367484U) filed by the applicant with the State Intellectual Property Office on March 29, 2024, a base for installing a fork assembly in a wok device is disclosed. The base includes a top panel, an inner cylinder and an outer cylinder with different diameters on the same axis. A shaft channel for installing a fork shaft is provided in the inner cylinder. A boss with a hollow channel coaxial with and communicating with the shaft channel extends upward from the middle of the top panel. An external thread is provided on the outer peripheral wall of the inner cylinder. An internal thread adapted to the external thread is provided on the inner peripheral wall of the upper part of the hollow wok shaft of the wok device.

[0004] The unidirectional thread structure has the following shortcomings:

[0005] 1) When the wok speed is less than the fork speed, the base and the wok will tighten more and more, making subsequent maintenance and disassembly inconvenient.

[0006] 2) When the speed of the wok is greater than that of the fork, and when the fork is subjected to greater resistance from the food, the base will be subjected to a reverse twisting force, which will cause the base to loosen from the hollow pot shaft and cause the water in the pot to seep out. Summary of the Invention

[0007] The technical problem to be solved by this utility model is to provide a mounting assembly for the fork shaft in a wok device that has a stable structure and can keep the fork shaft seat and the wok shaft in a relatively static state.

[0008] To solve the above-mentioned technical problems, this utility model provides a mounting assembly for a fork shaft in a wok device, which includes a fork shaft seat with an axial channel. The fork shaft is rotatably mounted in the axial channel relative to the fork shaft seat. It also includes a fixed seat installed at the bottom of the wok inside the wok device. The lower end of the fork shaft seat passes through the fixed seat and is threadedly connected to a pot shaft installed at the bottom of the wok outside. The fixed seat, the fork shaft seat and the wok rotate synchronously.

[0009] Preferably, the fixing seat is shaped like a frustum, and a positioning post is provided at the bottom of the fixing seat to connect the fixing seat and the wok in a circumferential limiting manner. The middle part of the fixing seat is provided with a central channel that runs through its top and bottom surfaces, and the central channel is stepped. The annular protrusion at the upper end of the shift fork shaft seat is pressed against the platform of the central channel.

[0010] Preferably, the top panel of the shift fork bearing has a boss with an irregular or regular polygonal cross-section extending upward from the center of the top panel. A locking disc is fitted on the boss and is limited and connected to the boss. The outer peripheral teeth of the locking disc mesh with the inner peripheral teeth of the inner wall of the central channel.

[0011] Preferably, a plurality of first slots are provided on the top surface of the annular convex edge along the circumferential direction, and a plurality of second slots are provided on the top surface of the fixed seat. When the shift fork shaft seat is screwed into place, the first slots and the second slots correspond one-to-one, and the first slots and the second slots are limited and connected by a locking strip.

[0012] Preferably, a plurality of buckles are provided on the top surface of the annular convex edge along the circumferential direction, and a plurality of locking blocks are provided on the top surface of the fixed seat accordingly. When the shift fork shaft seat is screwed into place, the buckles and locking blocks correspond one-to-one, and the buckles are engaged on the locking blocks.

[0013] Preferably, a shift fork assembly for mounting shift fork blades is provided on the shift fork shaft seat. The shift fork assembly includes a shift fork base and a rotating cap. The rotating cap is fixedly connected to the upper end of the shift fork shaft passing through the shift fork base to axially limit the shift fork base and locking disc, the shift fork base and locking bar, or the shift fork base and locking buckle.

[0014] Preferably, a second annular groove is provided on the bottom surface of the annular convex edge, and a sealing ring is provided in the second annular groove.

[0015] Preferably, a transverse third annular groove is provided at the connection between the main body of the shift fork shaft seat and its lower end with external threads. A sealing ring is provided in the third annular groove. When the shift fork shaft seat is tightened on the pot shaft, the upper end of the pot shaft and the third annular groove form an enclosing structure to limit the position of the sealing ring.

[0016] This utility model adopts a wok-limiting fixed seat, a fixed seat limiting a locking plate, and a locking plate limiting a shift fork shaft seat. This layered interlocking structure ensures that the shift fork shaft seat rotates synchronously whether the wok rotates forward or backward, thus preventing the shift fork shaft seat with threaded connection from loosening under external force. It achieves linkage by setting a simple connection structure on the basis of existing functional components. Its structure is simple, low in cost, and has high reliability and stability. Attached Figure Description

[0017] Figure 1 This is a perspective view of the mounting assembly of the fork shaft in the wok device of this utility model;

[0018] Figure 2 This is an exploded view of the mounting assembly of the fork shaft in the wok device of this utility model.

[0019] Figure 3 yes Figure 1 Enlarged view of point A after vertical cross-section;

[0020] Figure 4 yes Figure 2 Enlarged view of section B after vertical cross-section;

[0021] Figure 5 This is an exploded view of the mounting assembly of the fork shaft in the wok device of this utility model, in another state.

[0022] Figure 6 This is a perspective view of the fixing seat in the mounting assembly of the fork shaft in the wok device of this utility model.

[0023] Figure 7 This is a perspective view of the fork shaft seat in the fork shaft mounting assembly of the wok device of this utility model.

[0024] The following components are labeled in the diagram: 1. Wok; 2. Fork; 3. Wok shaft; 4. Fork shaft; 5. Fixing seat; 51. Central channel; 511. Upper step; 512. Middle step; 513. Lower step; 514. Inner peripheral teeth; 52. First annular groove; 53. Sealing ring; 6. Fork shaft seat; 61. Axial channel; 62. Top panel; 63. Main body; 64. Annular protrusion; 65. Boss; 7. Locking disc; 71. Rubber disc; 8. Fork base; 81. D-shaped channel; 82. Receiving cavity; 9. Rotary cap. Detailed Implementation

[0025] The mounting assembly of the fork shaft 4 (hereinafter referred to as the mounting assembly) in the wok device of this utility model is applied to the wok device with the following structure.

[0026] The wok device includes a wok 1 and a fork 2 disposed inside the wok 1 for stir-frying food. The wok 1 is driven by a wok motor below it to rotate around its central axis via a wok shaft 3 at the bottom of the wok 1. The mounting assembly is used to detachably mount the fork shaft 4 coaxially with the wok 1 inside the wok 1 to facilitate the maintenance of the wok device. At the same time, the fork shaft 4 rotates with the fork 2 under the drive of the fork 2 motor to move relative to the wok 1.

[0027] The improvement of this utility model is that the installation component can easily and quickly install and remove the fork shaft seat 6 of the positioning and mounting fork shaft 4 onto the wok shaft 3 of the wok 1 through the threaded quick-release structure. At the same time, the fork shaft seat 6 will not become loose from the wok shaft 3 regardless of whether the rotation direction of the wok 1 is the same as or opposite to the threaded turning direction.

[0028] The specific structure of the mounting component used in this utility model will be described in detail below:

[0029] like Figure 1-7 As shown, the mounting assembly includes a fixed base 5, a shift fork shaft seat 6, and a structure for circumferentially limiting the fixed base 5 and the shift fork shaft seat 6. The structure of each component is described in detail below.

[0030] 1. Fixed base 5

[0031] like Figure 2-6 As shown, the fixed seat 5 mainly serves as a bridge for limiting the connection between the fork shaft seat 6 and the wok 1. At the same time, it can also prevent the juice from leaking from the connection between the fork shaft seat 6 and the wok shaft 3 into the wok shaft 3, which would cause corrosion of the wok 1 motor and other components and other hygiene problems.

[0032] Specifically, such as Figure 6 As shown, the fixed base 5 is in the shape of a frustum, with a central channel 51 running through its top and bottom. The central channel 51 is stepped, with an upper step 511, a middle step 512 and a lower step 513 respectively. The diameter of the channel portion enclosed by the slopes of the three steps decreases from top to bottom, and the slope of the upper step 511 is provided with inner circumferential teeth 514.

[0033] The fixed base 5 is installed on the inner bottom surface of the wok 1 and rotates synchronously with the wok 1. The structure used to limit the circumferential positioning of the two is as follows:

[0034] 1) A positioning post is provided at the bottom of the fixed base 5. The positioning post is a cylinder and there are at least two of them. Preferably, they are evenly spaced along the bottom of the fixed base 5. A circular hole is provided at the bottom of the wok 1. The positioning post is inserted into the circular hole to realize the circumferential limiting connection between the fixed base 5 and the wok 1.

[0035] 2) At least two arc-shaped strips are provided at the bottom of the fixed base 5, preferably evenly spaced along the bottom of the fixed base 5. An arc-shaped groove is provided at the bottom of the wok 1. The arc-shaped strips are inserted into the arc-shaped groove to achieve circumferential limiting connection between the fixed base 5 and the wok 1.

[0036] 2. Shift fork bearing 6

[0037] As described above, the shift fork shaft seat 6 is used to position and install the shift fork shaft 4, specifically, as follows: Figure 7As shown, the shift fork shaft seat 6 consists of a top panel 62, a cylindrical main body 63 located below the top panel 62, and a lower end extending downward along the main body 63 with external threads. The top panel 62 has an annular protrusion 64 extending outward. To facilitate the use of external tools to screw in or remove the shift fork shaft seat 6, a boss 65 with an irregular or regular polygonal cross-section on its outer peripheral wall extends upward along the middle of the top panel 62. Different shapes of bosses 65 require corresponding screwing tools. Preferably, the boss 65 is hexagonal. In addition, the boss 65, which is higher than the top panel 62, can, to some extent, prevent vegetable juice from flowing into the shift fork shaft seat 6.

[0038] An axial channel 61 is provided in the shift fork shaft seat 6 to allow the shift fork shaft 4 to pass through (the axial channel 61 extends from the lower end face of the shift fork shaft seat 6 to the top surface of the boss 65). The shift fork shaft 4 is positioned and installed in the axial channel 61 by a bearing so that the shift fork shaft 4 can rotate freely relative to the shift fork shaft seat 6. The lower end of the shift fork shaft 4 extends downward and is connected to the shift fork 2 motor. The upper end of the shift fork shaft 4 passes through the boss 65 and is placed on the boss 65. To further ensure the sealing of the entire device, an oil seal is provided in the boss 65 and fitted onto the shift fork shaft 4. The bearing is located below the oil seal.

[0039] Installation sequence of fixed seat 5 and shift fork shaft seat 6:

[0040] First, the fixed base 5 is installed inside the wok 1. Then, the lower end of the shift fork shaft seat 6 passes through the central channel 51 and the through hole on the bottom surface of the wok 1, and is inserted into the wok shaft 3 to achieve a threaded connection with the wok shaft 3. The main body 63 of the shift fork shaft seat 6 is embedded in the channel portion enclosed by the slope of the lower step 513. The annular protrusion 64 is accommodated in the channel portion enclosed by the slope of the middle step 512, and the bottom surface of the annular protrusion 64 presses against the platform surface of the lower step 513. This structure cleverly utilizes the shift fork shaft seat 6 to axially limit the fixed base 5.

[0041] To prevent the shift fork shaft seat 6 from loosening, this utility model cleverly utilizes the fixing seat 5 to circumferentially limit the shift fork shaft seat 6, thereby achieving circumferential limitation between the shift fork shaft seat 6 and the wok 1. The specific limiting structures are as follows:

[0042] 1) Lock disk 7

[0043] like Figure 2-5As shown, the locking disc 7 has a through hole in the middle with the same shape as the outer periphery of the boss 65. The outer periphery of the locking disc 7 has outer peripheral teeth. When the locking disc 7 is sleeved on the boss 65 (the locking disc 7 is accommodated in the channel portion enclosed by the slope of the upper step 511), the non-circular fit between the locking disc 7 and the boss 65 causes a circumferential limit to be formed between the locking disc 7 and the shift fork shaft seat 6. At the same time, the outer peripheral teeth of the locking disc 7 mesh with the inner peripheral teeth 514 of the slope of the upper step 511, thereby forming an interlocking state between the shift fork shaft seat 6 and the fixed seat 5.

[0044] Based on the fit clearance between the locking disc 7 and the boss 65, as well as the outer and inner peripheral teeth 514 of the locking disc 7, the shift fork shaft seat 6 is allowed a small range of movement space, which is expected to be around 5°. This small range of movement does not affect the overall limiting structure and sealing effect.

[0045] The lock disc 7 is preferably made of 430 or other 4-series stainless steel, which is not only rust-proof but can also be pulled out and disassembled by a magnetized sleeve.

[0046] The interlocking function between the two components is achieved through the locking disc 7, which is convenient to install and cleverly utilizes the existing structure in the components to achieve cooperation, further simplifying the structure.

[0047] 2) Card slot and card strip structure

[0048] A plurality of first slots are provided on the top surface of the annular protrusion 64 along the circumferential direction, and a plurality of second slots are provided on the top surface of the fixed seat 5 (the platform of the upper step 511). When the shift fork shaft seat 6 is screwed into place, the first slots and the second slots correspond one-to-one (in this structure, the top surface of the annular protrusion 64 is flush with the top surface of the fixed seat 5, and the first slots and the second slots are on the same horizontal plane). The first slots and the second slots are connected by a retaining strip to achieve a limiting connection.

[0049] The relative positions of the first and second slots are designed to meet the requirements for the tightness of the shift fork shaft seat 6 during tightening.

[0050] 3) Buckle and latch structure

[0051] Several buckles are provided on the top surface of the annular protrusion 64 along the circumferential direction, and several locking blocks are provided on the top surface of the fixed seat 5 respectively. When the shift fork shaft seat 6 is screwed into place, the buckles and locking blocks correspond one-to-one, and the buckles are engaged on the locking blocks. The positions of the buckles and locking blocks can also be interchanged.

[0052] This invention uses the above-described structure for circumferential positioning, which avoids the risk of screws falling off during screw fastening.

[0053] To prevent vegetable juice from seeping into the wok 1 through the gap between the fixed base 5 and the wok 1 and flowing out through the through hole at the bottom of the wok 1, a first annular groove 52 with an upward indentation is provided on the bottom surface of the fixed base 5 near the outer periphery. A sealing ring 53 is provided in the first annular groove 52. The fixed base 5 presses the sealing ring 53 under the action of the shift fork shaft seat 6 to form a sealed and leak-proof structure. The positioning post or arc-shaped strip is set in the inner area enclosed by the first annular groove 52.

[0054] 3. Shift fork assembly

[0055] In order to prevent the locking disc 7, the locking bar, etc. from jumping upward under the action of external force and to further ensure the stability of the limiting structure, this utility model uses a shift fork assembly installed on the upper end of the shift fork shaft 4 to realize the axial limiting of the locking disc 7 or the locking bar and other components.

[0056] like Figure 4 As shown, the shift fork assembly is used to install the shift fork 2. The shift fork assembly includes a shift fork base 8 and a rotating cap 9. There are multiple shift forks 2, which are evenly spaced on the shift fork base 8. The middle part of the shift fork base 8 is provided with an interconnected D-shaped channel 81 and a receiving cavity 82 from top to bottom. A blind hole is provided at the bottom of the rotating cap 9. The peripheral wall of the blind hole is provided with an internal thread. Correspondingly, the part of the shift fork shaft 4 placed on the boss 65 is a stepped shaft. The outer diameter of the stepped shaft decreases from bottom to top. The slope of the middle step 512 has a D-shaped structure, and the slope of the upper step 511 has a threaded structure.

[0057] When the shift fork base 8 is fitted onto and snapped onto the shift fork shaft 4, the upper step 511 extends out of the top surface of the shift fork base 8 and is threadedly connected to the screw cap 9 to axially limit the shift fork base 8. At this time, the D-shaped structure is accommodated in the D-shaped channel 81, and the top surface of the accommodating cavity 82 rests on the platform of the lower step 513 (the platform of the lower step 513 is higher than the platform of the boss 65). The boss 65 is accommodated in the accommodating cavity 82. At the same time, the shift fork base 8 covers the locking disc 7, the locking bar or the buckle, with a gap between them that allows the shift fork base 8 to rotate freely. The distance of this gap is less than the movement distance of the locking disc 7, the locking bar or the buckle completely disengaging from the corresponding locking position.

[0058] To more comprehensively cover the locking disc 7, the locking strip, or the buckle, and to prevent a large amount of vegetable juice or food from seeping into the gap between the fork base 8 and the fork shaft seat 6, a rubber disc 71 is added between the fork base 8 and the fork shaft seat 6. The rubber disc 71 is fitted on the boss 65 and its outer diameter is the same as the outer diameter of the top surface of the fixed seat 5. A gap is still left between the fork base 8 and the rubber disc 71.

[0059] By connecting the screw cap 9 to the shift fork shaft 4 with a threaded connection, the shift fork assembly can be quickly disassembled, while the shift fork base 8 and locking disc 7, the shift fork base 8 and locking bar, or the shift fork base 8 and locking buckle can be axially limited, further ensuring the stability of the entire structure.

[0060] To facilitate installation, the shift fork shaft 4 and the output shaft of the shift fork 2 motor are connected by an irregular fit to achieve circumferential limiting connection. That is, the shift fork shaft 4 and the shift fork shaft seat 6 are assembled into a component before installation. During the installation of the shift fork shaft seat 6, the shift fork shaft 4 and the output shaft are automatically aligned and connected. The overall assembly sequence is: fixed seat 5 - shift fork shaft seat 6 and shift fork shaft 4 assembly - locking disc 7 or clamping bar - shift fork base 8 and shift fork 2 - rotating cap 9.

[0061] This utility model first connects the fixed seat 5 to the wok 1 with a circumferential limiting connection, and then connects the fork shaft seat 6 to the wok shaft 3 with a thread. At this time, the fork shaft seat 6 can axially limit the fixed seat 5, so that the fixed seat 5 can be completely positioned and installed in the wok 1 without the assistance of external screws or other parts. Finally, the fixed seat 5 and the fork shaft seat 6 are circumferentially limited by the locking disc 7 or the slot and clip mechanism, and finally form an interlocking state to realize the tight connection between the wok 1 and the fork 2 in any working mode (wok 1 and fork 2 in the same direction but different speeds, in opposite directions but different speeds, or in the same direction and at the same speed, etc.). To ensure that even if the wok 1 moves in the direction of loosening of the threaded connection between the fork shaft seat 6 and the pot shaft 3 after the fork shaft seat 6 is properly installed, the fork shaft seat 6 and the pot shaft 3 will not become loose. (Under static conditions, when the fork shaft seat 6 is screwed onto the pot shaft 3 via the threaded structure, the fork shaft seat 6 and the pot shaft 3 rotate synchronously. However, under dynamic conditions, if the fork 2 needs to stir the food, a lateral load is generated on the fork 2, resulting in a twisting force between the fork shaft seat 6 and the pot shaft 3 in the direction of loosening. When this twisting force exceeds the friction force of the thread, the two will become loose. After loosening, a gap will be created, causing food juices and other substances inside the wok 1 to leak out, leading to hygiene problems or affecting the service life of electrical components.) Finally, the fork assembly is cleverly used to achieve axial limiting, further improving the stability of the entire device.

[0062] To improve the waterproof performance of the mounting components, the present invention has made the following improvements:

[0063] 1) A second annular groove is provided on the bottom surface of the annular protrusion 64, and a sealing ring is provided in the second annular groove. When the fork shaft seat 6 is tightened on the pot shaft 3, the annular protrusion 64 presses the sealing ring on the table surface of the lower step 513 to prevent the vegetable juice in the wok 1 from entering from the gap between the fixed seat 5 and the fork shaft seat 6.

[0064] 2) A transverse third annular groove is provided at the connection between the main body 63 and the lower end with external threads. A sealing ring is also provided in the third annular groove. When the shift fork shaft seat 6 is tightened on the pot shaft 3, the upper end of the pot shaft 3 and the third annular groove form a surrounding structure to limit the position of the sealing ring and prevent the sealing ring from shifting during installation and failing to achieve the sealing effect.

[0065] 3) The upper end of the pot shaft 3 extends through the through hole at the bottom of the wok 1 and into the wok 1 to form a waterproof platform, so as to prevent the vegetable juice that seeps into the wok 1 from flowing into the pot shaft 3 through this point and causing damage to the motor of the wok 1.

[0066] The fixed seat 5, the fork shaft seat 6, and the pot shaft 3 are all coaxially arranged with the wok 1.

Claims

1. A mounting assembly for a fork shaft in a wok device, comprising a fork shaft seat with an axial channel, wherein the fork shaft is rotatably mounted within the axial channel relative to the fork shaft seat, characterized in that, It also includes a fixed seat installed at the bottom of the wok inside the wok unit, and the lower end of the fork shaft seat passes through the fixed seat and is threadedly connected to the pot shaft installed at the bottom of the wok outside. The fixed seat, the fork shaft seat and the wok rotate synchronously.

2. The mounting assembly for the fork shaft in the wok device as described in claim 1, characterized in that, The fixing seat is shaped like a frustum. At the bottom of the fixing seat, there is a positioning post that can circumferentially limit the connection between the fixing seat and the wok. The middle of the fixing seat is provided with a central channel that runs through its top and bottom surfaces. The central channel is stepped. The annular protrusion at the upper end of the shift fork shaft seat is pressed against the platform of the central channel.

3. The mounting assembly for the fork shaft in the wok device as described in claim 2, characterized in that, The top panel of the shift fork shaft seat has a boss with an irregular or regular polygonal cross-section extending upward from the center of the top panel. A locking disc is fitted on the boss and is limited and connected to the boss. The outer peripheral teeth of the locking disc mesh with the inner peripheral teeth of the inner wall of the central channel.

4. The mounting assembly for the fork shaft in the wok device as described in claim 2, characterized in that, A plurality of first slots are provided on the top surface of the annular convex edge along the circumferential direction, and a plurality of second slots are provided on the top surface of the fixed seat. When the shift fork shaft seat is screwed into place, the first slots and the second slots correspond one-to-one, and the first slots and the second slots are connected by a locking strip for limiting.

5. The mounting assembly for the fork shaft in the wok device as described in claim 2, characterized in that, Several buckles are provided on the top surface of the annular convex edge along the circumferential direction, and several locking blocks are provided on the top surface of the fixed seat. When the shift fork shaft seat is screwed into place, the buckles and locking blocks correspond one-to-one, and the buckles are engaged on the locking blocks.

6. The mounting assembly for the fork shaft in the wok device as described in any one of claims 3-5, characterized in that, A shift fork assembly for mounting shift fork blades is provided on the shift fork shaft seat. The shift fork assembly includes a shift fork base and a rotating cap. The rotating cap is fixedly connected to the upper end of the shift fork shaft passing through the shift fork base to axially limit the shift fork base and locking disc, the shift fork base and locking bar, or the shift fork base and locking buckle.

7. The mounting assembly for the fork shaft in the wok device as described in claim 6, characterized in that, A second annular groove is provided on the bottom surface of the annular convex edge, and a sealing ring is provided in the second annular groove.

8. The mounting assembly for the fork shaft in the wok device as described in claim 6, characterized in that, A transverse third annular groove is provided at the connection between the main body of the shift fork shaft seat and its lower end with external threads. A sealing ring is provided in the third annular groove. When the shift fork shaft seat is tightened on the pot shaft, the upper end of the pot shaft and the third annular groove form an enclosing structure to limit the position of the sealing ring.

Images